• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Connection assembly for connecting a first pipe (branch) to a transverse opening in a second pipe (main pipe). The connection assembly comprises an inlet piece and a sealing sleeve. The inlet piece comprises a coupling part with a certain coupling length for attaching the inlet piece to the first conduit, and an insertion part with a certain insertion depth for attaching the inlet piece in the transverse opening of the second conduit. The sealing sleeve is arranged to lie sealingly between the insertion part and a circumferential wall of the transverse opening and clamp the insertion part in the transverse opening. Surfaces of the inlet piece and the sealing cuff facing each other in use are provided with cooperating profiles which can interlock in use.
    公开号:BE1024036B1
    申请号:E2011/0593
    申请日:2011-10-06
    公开日:2017-10-31
    发明作者:Bernardus Cornelis Hubertus Mureau；Jan Hendrik Ranter
    申请人:Wavin Bv；
    IPC主号:
    专利说明:

    Titlen Connection assembly for a branch.
    The invention relates to a connecting assembly for connecting a first conduit to a transverse opening in a second conduit, wherein the connecting assembly comprises an inlet piece and a sealing sleeve, and wherein the inlet piece comprises a coupling part for attachment to the first conduit, and an insertion part for attachment in the transverse opening of the second conduit, and wherein the sealing sleeve is arranged in use a) to lie sealingly between the insertion part and a circumferential wall of the transverse opening and b) to clamp the insertion part in the transverse opening.
    Such a connection assembly is known and is used, for example, for connecting branches in situ to an existing pipe, for example a sewer pipe. To this end, a transverse opening is drilled in the existing pipe, after which the sealing sleeve is placed in the opening. Subsequently, the inlet piece with the insertion part is pressed into the sealing sleeve. The branch can then be attached to the coupling part.
    The invention has for its object to provide an improved connection assembly of the type described above. More particularly, it is an object of the invention to provide a connection assembly that is easier to manufacture and to install and / or with which a more reliable connection can be established, more resistant to forces acting thereon such as compression forces, pull-out forces, bending forces and / or torsional forces. .
    To this end, a connection assembly according to the invention is characterized in that facing surfaces of the inlet piece and the sealing sleeve are provided with cooperating profiles which can engage each other in use. The profiles may, for example, have a saw-tooth or barb-shaped profile. Thanks to such a more favorable interplay of forces. This is because, in use, forces acting on the first conduit, such as transverse forces and bending forces, can be partially passed directly from the end of the first conduit to the surrounding second conduit. The remaining forces can be distributed more evenly over a larger part of the inlet piece. This will make the assembly resistant to higher external forces. Alternatively, the assembly can be made lighter, with less material. The measure can further contribute to a compact connection assembly with a low installation height.
    According to an aspect of the invention, a connection assembly according to the invention is characterized in that the coupling length of the coupling part is longer than the insertion depth of the insertion part. The ratio between coupling length and insertion depth influences the stability of the connection and the way in which external forces affect the first pipe, the inlet piece and the second pipe. In addition, the ratio influences the installation height of the installed assembly. Preferably, the coupling length is approximately 1.5 to 2.5 times greater than the insertion depth, more preferably approximately 2 times greater. With such ratios, a good balance is achieved between the installation height, stability and load-bearing capacity of the connection to be realized.
    It is noted that said measure can also be used in a connection assembly according to the invention without contributing to a better connection assembly without the limiting measure of the main claim, that is, without overlap between insertion depth and coupling length.
    According to an aspect of the invention, the insertion part surrounds the coupling part. An inlet piece constructed in this way can assume a stable position when mounted. The construction can further contribute to the stiffness of the inlet piece, in particular the radial stiffness.
    The construction can also contribute to a favorable transfer of forces. Because the end of the first conduit, the coupling part, the insertion part and the opening wall of the second conduit all extend around each other, forces can be transmitted from the first conduit to the second conduit in a substantially straight line. As a result, fewer, at least fewer large bending moments will be generated in the inlet piece.
    According to an aspect of the invention, the inlet piece is made of one piece. Such an assembly only has two parts (inlet piece and sealing sleeve) and can therefore be easily installed with a minimum of operations.
    According to an aspect of the invention, overlapping parts of the insert part and the coupling part are mutually connected by spacers, for example ribs. As a result, the stiffness of the inlet piece can be increased at strategic points, but with a minimum of extra material.
    According to an aspect of the invention, the insertion part has a substantially constant wall thickness. This makes the insertion part easy to manufacture by casting, for example injection molding. Due to the constant wall thickness, the product cools evenly so that internal stresses and associated distortions can be avoided or reduced.
    According to an aspect of the invention, the coupling part has a substantially constant wall thickness. This offers the same manufacturing advantages as described above for the insert part.
    According to an aspect of the invention, the wall thickness of the coupling part is approximately the same as the wall thickness of the insertion part. This contributes to an assembly that is easier to manufacture. More in particular, the inlet piece can hereby simply be injection molded in one piece. Because both parts have approximately the same wall thickness, cooling differences and associated disadvantages (internal stresses, distortions such as warping) are avoided or reduced.
    According to an aspect of the invention, the inlet piece is at least partially double-walled. This can contribute to a strong, compact inlet piece. The double-walled part can moreover be easily manufactured with known casting techniques such as injection molding or rotary casting.
    According to an aspect of the invention, the inlet piece is double-walled at least at the location of the insertion part. The outer wall part can cooperate with the sealing sleeve. The inner wall part can cooperate with or form part of the coupling part.
    According to an aspect of the invention, a first portion of the inlet piece that extends into use in the transverse opening may have a greater wall thickness than a second portion of the inlet piece which, in use, lies outside the transverse opening. Thus, the mechanical properties of the inlet piece, in particular the stiffness and strength, can be locally increased where necessary. A first part can thus be realized that is sufficiently stiff and strong to hardly deform or hardly deform during use. As a result, this first part, even in the loaded state, can remain close-fitting against the sealing sleeve. The first portion may, for example, have a wall thickness that is about 1.5 to 2.5 times as large, and preferably about 2 times as large as that of the second portion. With such ratios, a good balance can be obtained between additional strength and stiffness and the amount of additional material required for this.
    According to an aspect of the invention, the coupling member may comprise a sleeve, a key or both. In the latter case, an annular chamber can be formed between the sleeve and the key, in which the first line can be received. The key can provide support to prevent the first pipe from being pressed shut in the sleeve.
    According to an aspect of the invention, the coupling part can comprise locking means for fixing the first pipe in the installed state. These locking means can for instance comprise one or more teeth that bite into the inserted line or a wedge-shaped clamping ring that increasingly tightens in or around the first line as it is withdrawn from the assembly. A strong connection is thus obtained, which can offer resistance to external forces, in particular pull-out forces.
    According to an aspect of the invention, the coupling part may comprise sealing means for sealingly abutting the first conduit. The sealing means can for instance comprise a sealing ring. A fluid-tight connection can hereby be established between coupling part and first conduit.
    According to an aspect of the invention, the inlet piece may comprise first stop means. These first stop means may, for example, extend along the outer circumference of the inlet piece. Thanks to such stop means, the insertion depth of the inlet piece is limited and the inlet piece is prevented from being pushed too far or even completely through the transverse opening. Installation of the assembly thus becomes simpler, or at least more infallible.
    According to a further elaboration of the aforementioned aspect, an outer diameter of the first stop means is larger than the diameter of the transverse opening. As a result, the stop means can support against the pipe wall around the transverse opening. This increases the resistance to push-through forces acting on the assembly in use. It can further result in a more favorable force play in which forces acting on the assembly are passed through to the second conduit via the first stop means.
    According to a further elaboration, the first stop means are located approximately halfway up the inlet piece. As a result, the inlet piece can lie in the transverse opening with the same length as outside it. This results in a stable connection with a relatively high load capacity. In use, forces acting on the assembly will be passed on to the second conduit via the inlet piece portion located in the transverse opening. The second conduit will, in response, exert reaction forces on the portion located in the transverse opening. The longer the portion located outside the transverse opening is, the aforementioned reaction forces will be greater as a result of leverage (the portion located outside the transverse opening acts as a lever). That is why it is favorable if both sections are approximately the same length. The length of the portion located in the transverse opening is herein preferably smaller than or equal to the wall thickness of the second conduit. This section will then be able to support the entire wall length against the pipe wall.
    In cases where the inlet piece comprises a double-walled and a single-walled part, the first stop means are preferably located near a transition between the two parts. This allows the double-walled part to protrude over its full length into the transverse opening so that the strength of this double-walled part can be utilized optimally.
    According to an aspect of the invention, the first stop means are adapted to follow the curve of the second line. As a result, the stop means can lie close to the pipe wall and thus contribute to a good seal. Moreover, the abutment surface will be relatively large, resulting in a favorable distribution of abutment and pressing forces.
    According to an aspect of the invention, the first stop means can comprise one or more cams which together cover at least a part of the outer circumference of the inlet piece. By providing several cams, a relatively large stop range can still be achieved with a minimum of material. Alternatively, one circumferential cam can be provided. With such a cam, pressing forces can be evenly distributed around the transverse opening and peak stresses can be prevented. Such a cam can furthermore contribute to the overall stiffness and strength of the inlet piece.
    According to an aspect of the invention, the inlet piece may comprise second stop means to limit the coupling length between the inlet piece, more particularly the coupling part, and the first line. A tangible or otherwise perceptible feedback can thus be given to a user who ensures that the first line is always pushed sufficiently far, but not too far, into or around the coupling part. The second stop means may, for example, extend along the inner circumference of the coupling part, near an end thereof.
    According to an aspect of the invention, the first and second stop means can be arranged relative to each other such that the coupling length is greater than the insertion depth. Such a ratio between coupling length and insertion depth is, as explained above, favorable for the functioning of the connection assembly. By smart placement of the first and second stop means it can thus be achieved that the inlet piece is always installed in a manner that is favorable.
    According to an aspect of the invention, the sealing sleeve has an axial length that is approximately equal to the wall thickness of the second conduit at the location of the transverse opening. As a result, the sealing sleeve can lie sealingly against the entire surface of the opening wall and thus contribute to a good seal.
    According to an aspect of the invention, the sealing sleeve has an axial length that is approximately equal to the insertion depth of the inlet piece. Thus, the sealing sleeve can lie sealingly over the full insertion depth around the inlet piece and help prevent direct contact between the inlet piece and the opening wall.
    According to an aspect of the invention, a grip and / or seal-raising profiling is provided along the outer circumference of the sealing sleeve, for example one or more ridges. At the location of these profiles, the sealing sleeve, in use, will contact the opening wall with greater pressure. This can contribute to an even better seal. It can also contribute to an even better fixation of the sealing sleeve in the transverse opening. The profiling preferably extends around the entire outer circumference. As a result, the locally increased contact pressure is evenly distributed along the circumference. Moreover, it will not matter in what • position the sealing sleeve is inserted into the transverse opening.
    According to an aspect of the invention, the sealing sleeve comprises a collar which, in use, abuts against an outer surface of the second conduit around the transverse opening. The collar can contribute to an even better seal between the inlet piece and the second line. Furthermore, the collar can give visual feedback that the sealing sleeve is installed correctly.
    According to an aspect of the invention, facing surfaces of the inlet piece and the sealing sleeve are provided with cooperating profiles which can engage each other in use. With such profiles, an even better seal can be achieved, and an even better fixation between inlet piece and sealing sleeve. The aforementioned beneficial effects already occur if only a number of the profiles are in engagement with each other. Because the insertion depth of the inlet piece may vary from case to case, it is preferable to provide the sealing sleeve with profiles over the full length. At the inlet piece, the profiling can be applied over only a part of the insertion length, preferably near one of them. Thus, one or more profiles can always be in engagement with each other, irrespective of the actual insertion depth of the inlet piece.
    According to a further elaboration, the cooperating profiles preferably extend along the full circumference of at least one Tan of said parts (inlet piece and / or sealing sleeve). As a result, it does not matter in which position the inlet piece is inserted into the sealing sleeve. This simplifies assembly and reduces the risk of assembly errors.
    According to a further elaboration, the cooperating profiles have a complementary form. This allows the profiles to interlock in a form-fitting manner. In such an embodiment, the forces required for installation can be low. The cooperating profiles can also be arranged such that they interlock in a force-locked manner. With this a very strong connection can be established, resistant to high pull-out forces. In such a force-locked embodiment, moreover, the design and / or dimensioning of the profiles plays a less dominant role, as a result of which less strict manufacturing tolerances may apply.
    According to an aspect of the invention, an end edge of the inlet piece is provided with a bevel. The chamfer may help to center the inlet piece during insertion into the sealing sleeve. The chamfer also ensures that the insertion force will be low, at least initially.
    According to an aspect of the invention, an end edge of the inlet piece comprises a tapered base portion, the envelope of which has a conical or curved (concave, convex, or other) shape, the base portion comprising at least two regions located radially inwardly of the envelope at some distance from it. With such a profiled end edge, a low insertion force is obtained because the edge comes into contact with the sealing sleeve during the installation sector.
    According to an aspect of the invention, the sealing sleeve is made of an elastomer. Thanks to the good elastic properties of this material, the sealing sleeve can always fit snugly against adjacent surfaces, even when they contain irregularities. In addition, the material has a high coefficient of friction, so that the sealing sleeve, in use, can offer a high resistance to impression and pull-out forces.
    According to an aspect of the invention, the inlet piece is dimensioned such that the stiffness of the inlet piece is greater than that of the sealing sleeve, at least in the radial direction. This allows the inlet piece to exert pressure on the sealing sleeve during installation and deform it locally or compress it without deforming itself.
    According to an aspect of the invention, the inlet piece is made of the same material as the first conduit to be connected, at least a material with comparable mechanical properties, such as elastic modulus, expansion coefficient, etc. This can cause connection problems between the inlet piece and the first conduit. prevented or reduced.
    According to an aspect of the invention, the sealing sleeve and the inlet piece are dimensioned such that, in the installed state, the sealing sleeve is slightly compressed between the inlet piece and the opening wall. As a result, elastic reaction forces are generated in the sealing sleeve which ensure that the sealing sleeve will always abut against adjacent parts with a certain force, also when these comprise irregularities and / or dimensional deviations. A good seal is thus obtained. In addition, said reaction forces provide relatively large frictional forces between the sealing sleeve and the adjacent parts, which contributes to a good fixation of the inlet piece in the transverse opening.
    To clarify the invention, an exemplary embodiment of a connection assembly according to the invention, as well as the component parts and the use thereof, will be further elucidated with reference to the drawing. Therein: FIG. 1 is a perspective view of a connection assembly according to the invention, in exploded state, FIG. 2 shows in cross-section the connection assembly of Figure 1, in assembled condition; FIG. 3 is an perspective view of an inlet piece according to the invention! FIG. 4 is a perspective view of an alternative embodiment of an inlet piece according to the invention; FIG. 5 shows an inlet piece according to the invention in cross-section; FIG. 6 shows a detail of the inlet piece of Figure 5; FIG. 7 shows a sealing sleeve according to the invention in cross-section; and FIG. 8 a detail of the sealing sleeve of FIG. 7.
    Figures 1 and 2 show a connection assembly 1 according to the invention for connecting a first pipe 21 to a transverse opening 23 in a second pipe 22, wherein the second pipe is, for example, a concrete sewer pipe and the first pipe 21 is a plastic branch to be connected thereto. The connection assembly 1 comprises an inlet piece 2 and a sealing sleeve 3 which, when mounted, can lie sealingly between the inlet piece 2 and the transverse opening 23. The sealing sleeve 3 is preferably made of an elastomeric material, for example natural or synthetic rubber. The inlet piece 2 can for instance be manufactured from plastic, for example PVC or PE. The inlet piece 2 is preferably made from the same or a comparable material as that of the first conduit 21 to be connected, i.e. with comparable mechanical properties, such as elastic modulus, coefficient of expansion, and the like. Furthermore, the geometry of the inlet piece 2 is such that the stiffness, in particular the radial stiffness of the inlet piece 2, is greater than that of the sealing sleeve 3, so that the sleeve 3 can be elastically deformed between the inlet piece 2 and the opening wall during installation. 23.
    As indicated in Figs. 1-5, the inlet piece 2 comprises a coupling part 4 and an insertion part 6. The coupling part 4 serves to connect the inlet piece 2 to the first conduit 21 and can be designed for this purpose as a sleeve (as shown). In an alternative embodiment, the coupling part 4 can for instance comprise a key or a sleeve key combination, wherein an annular chamber is formed between sleeve and key for receiving the first pipe 21.
    The coupling part 4 shown has a substantially constant wall thickness d4. The coupling part 4 can furthermore comprise stop means 5 for defining a coupling length L4 between the coupling part 4 and the first conduit 21. Such stop means 5 can for instance comprise one or more cams or a circumferential edge which - depending on the embodiment of the coupling part 4 * can extend along its inner circumference (as shown) or outer circumference.
    The coupling part 4 can furthermore comprise locking means (not shown) for a tension-resistant connection between the coupling part 4 and the first conduit 21 and / or sealing means (not shown) for a fluid-tight connection between said parts. The locking means can for instance comprise barb-shaped elements which can bite into the first line 21, or clamping means which can clamp around the first line 21. The sealing means can for instance comprise a sealing ring.
    The insertion part 6 serves to connect the intake piece 2 to the second conduit 22. For this purpose, the insertion part 6 can be designed as a cylindrical body that can be received in the transverse opening 23 as a suitable fit.
    The insert part 6 preferably has a substantially constant wall thickness d6. This wall thickness d6 is preferably of the same order of magnitude as the wall thickness d4 of the coupling part 4. Stop means 8 can be provided to limit an insertion depth L6 of the insertion part 6. These stop means 8 can for instance comprise one or more cams which extend along the outer circumference of the inlet piece 2, near an end of the insert part 6, as shown in Figure 3. Alternatively, the stop means 8 can for instance comprise a circumferential edge, as shown in Figure 4. The placement of the stop means 8 is preferably such that the insertion depth L6 is approximately as large as the wall thickness d22 of the second conduit 22. The design is preferably such that the stop means 8 can follow the curvature of the second conduit 22 for location of the transverse opening 23.
    As shown in Figures 2, 5 and 6, the insertion part 6 surrounds the coupling part 4 in such a way that the insertion depth L6 overlaps with the coupling length L4 (seen in the axial direction). The coupling length L4 can be as large as the insertion depth L6 or smaller, but is preferably greater than the insertion depth L6, more preferably about twice as large. The overlap between insertion and coupling part 6,4 can be maximal, whereby the insertion part 6 overlaps with the coupling part 4 over substantially its entire insertion depth L6. Of course, the overlap can be smaller in alternative embodiments. Furthermore, the coupling part 4 can protrude on one side of the insertion part 6 (the side shown or the opposite side facing the inside of the second conduit 22) or on both sides.
    The overlapping wall parts of the coupling part 4 and the insertion part 6 can be situated at some distance S from each other, as shown in Figures 2, 5 (right half) and 6. Ribs or other types of spacers 7 can be provided between them, as shown in Figure 4 and 5 (left half). Said parts 4, 6 can be manufactured separately and then mutually connected by means of per se known "fixing techniques such as gluing, welding, screw thread, clamp fit or the like. Alternatively, the parts 4, 6 including any spacers 7 can be made in one piece, for example by The wall thicknesses d4, d6, d7 of said parts 4, 6 and 7 are preferably of comparable size. As a result, they will exhibit comparable cooling behavior, which can counteract or reduce the build-up of internal stresses.
    Of course, the overlapping wall parts of the coupling part 4 and the insertion part 6 can also be combined into a single wall 17, which can for instance look as shown in Figure 5, left half. In the example shown, the joined wall 17 has a greater thickness dl 7 than the wall of the remaining inlet piece 2. For the sake of material saving and / or weight reduction, the wall 17 can be locally hollow, as shown in the right-hand half of Figure 5. Such an embodiment approximates that described above, wherein the overlapping wall parts are spaced apart by some distance S and are mutually connected by spacers 7.
    In the exemplary embodiment shown, the insertion part 6 is provided with profiles 9 extending along at least a part of the outer circumference. The profiles 9 may, for example, be designed as grooves, ribs and / or cams and have a cross-section that is complementary to, or at least cooperate with, profiles of the sealing sleeve 3 to be described hereinafter. The profiles 9 may, for example, be a barb or sawtooth-shaped have a cross-section, as shown in Figure 5. The profiles 9 can be arranged over the entire insertion depth L6 of the insertion part 6, but are preferably arranged over a part thereof, preferably near the end of the insertion part 6 which in use is the first in the transverse opening 23 is stabbed.
    The insertion part 6 can be provided with a beveled end edge as shown in Figure 6. Alternatively, the insertion part 6 can be provided with a profiled end edge 10, as shown in Figure 4 and as described in EP1589272, the contents of which are considered herein to be incorporated by reference. . This profiled end edge 10 comprises a tapered base portion 12, the envelope of which shows a conical or curved shape, and at least two regions 14 which are located radially inwards with respect to said envelope, at some distance therefrom. Thanks to such a beveled or profiled edge 10, installation of the inlet piece 2 is facilitated and the required insertion force can be smaller.
    The insertion part 6 may further be incised (not shown) from said end edge 10 to form fingers of which a free end can be moved inwards over a certain radial distance (maximum distance S).
    In the exemplary embodiment shown, the sealing sleeve 3 comprises a substantially cylindrical body with a length L3 and a wall thickness d3. The length L3 is preferably approximately equal to the wall thickness d22 of the second conduit 22. The wall thickness d3 is preferably substantially constant, apart from the profiles 11 to be described below. The sealing sleeve 3 may further comprise a collar 13, as shown. , which in use can abut against the conduit wall around the transverse opening 23.
    The sleeve 3 shown is provided with profiles 11 extending along at least a part of the inner circumference. The profiles 11 may, for example, be designed as grooves, ribs and / or cams, and have a cross-section that is complementary to, or at least cooperate with, the aforementioned profiles 9 of the insert part €, by which is meant that the profiles 9, 11 are in use being able to interlock in a form-locked and / or force-locked manner. The profiles 9, 11 shown have a barb or saw-tooth cross section for this purpose. Other forms are of course possible. The profiles 9 can be arranged over a part of the length L3 or over the full length L3 of the sealing sleeve 3, preferably at a regular mutual distance, as shown.
    The sealing sleeve 3 can further be provided with further profiles that extend along the outer circumference, preferably along the full circumference. These further profiles may comprise, for example, grooves or ridges. An embodiment of the latter variant is shown in Figure 2. The ridges shown have a semicircular cross section. Other forms are of course possible.
    The aforementioned connection assembly 1 can be installed as follows. First, a transverse opening 23 is drilled in the second conduit 22. After this, the sealing sleeve 3 is placed in the transverse opening so that the collar 13 abuts the conduit wall around the transverse opening 23. In this condition, the cylindrical part of the sealing sleeve 3 lies free of or with light pressure against the opening wall. Subsequently, the inlet piece 2 with the insertion part 6 is inserted into the sealing collar 3 until the stop means 8 abut against the collar 13. The dimensioning of the transverse opening 23, the sealing collar 3 and the insertion part 6 is such that the sealing collar 3 is slightly compressed in this situation. between the insert part 6 and the opening wall. The elastic reaction forces generated as a result in the sealing sleeve 3 ensure a good seal between the aforementioned components, even if the opening wall is irregular. In addition, the aforementioned forces ensure that the sleeve 3 and the insertion part 6 are clamped in the transverse opening 23, so that the connection assembly 1 can withstand pull-out and push-through forces acting thereon. The resistance to pull-out and push-through forces is further increased by the high frictional force between the sealing sleeve 3 on the one hand and the opening wall or the insertion part 6 on the other hand. The resistance to pull-out forces is further increased by providing the insertion part 6 and the sealing sleeve 3 with the cooperating profiles 9, 11.
    As a final step, the first conduit 21 is inserted into the coupling part 4, up to the stop means 5. Thanks to the overlap between the insertion depth L6 and the coupling length L4, the first conduit 21 will extend with an end into the transverse opening 23. This results in a favorable interplay of forces, in particular in the case of transverse forces, i.e. forces in directions perpendicular to the longitudinal direction of the pipe 21. These forces can largely be passed directly from the pipe end to the opening wall. Bending moments generated by the transverse forces are absorbed jointly by the first conduit 21 and the inlet piece 2, instead of by the individual components. The overlap between the insertion depth L6 and the coupling length L4 also contributes to a compact construction.
    Thus, with a connection assembly 1 according to the invention, a fluid-tight, compact, robust connection can be created that can withstand high forces. The assembly 1 is moreover simple and foolproof to install, among other things thanks to the small number of parts, the first and second stop means 8, δ which limit the insertion depth of the inlet piece 2 and the first conduit 21, and the beveled or profiled edge 10 which simplify the insertion of the insertion part 6. By overlapping the insertion part 6 with the coupling part 4, a compact assembly is obtained, which in use can advantageously transmit forces acting on the first conduit 21 to the second conduit 22. The assembly is furthermore easy to manufacture, inter alia because the wall thicknesses d6, d4 of the insertion part 6 and the coupling part can be of equal size. As a result, these parts 6, 4 will behave in a similar manner during injection molding and cooling, whereby internal stresses and deformations are avoided.
    The invention is in no way limited to the exemplary embodiments shown in the description and the drawing. All combinations of (parts of) described and / or shown embodiments are considered to fall under the inventive concept. Moreover, many variations thereof are possible within the scope of the invention as set forth in the following claims.
    权利要求:
    Claims (48)
    [1]
    CONCLUSIONS
    A connection assembly (1) for connecting a first conduit (21) to a transverse opening (23) in a second conduit (22), comprising an inlet piece (2) and a sealing sleeve (3), wherein the inlet piece (2) coupling part (4) comprising a coupling length (L4) for attaching the inlet piece to the first conduit, and an insertion part (6) with an insertion depth (L6) for attaching the inlet piece into the transverse opening of the second conduit, and wherein the sealing sleeve (3) is arranged to lie sealingly between the insertion part (6) and a circumferential wall of the transverse opening and clamp the insertion part (6) in the transverse opening, characterized in that there is overlap between the coupling length (L4) of the coupling part (4) and the insertion depth (L6) of the insertion part (6).
    [2]
    Connection assembly (1) according to claim 1, wherein the coupling part (4), at least the coupling length (L4), is longer than the insertion part (6), at least the insertion depth (L6).
    [3]
    Connection assembly (1) according to claim 1 or 2, wherein the coupling part (4), at least the coupling length (L4), is approximately 1.5 to 2.5 times as long as the insertion part (6), at least the insertion depth (L6 ), and is preferably about 2 times as long.
    [4]
    Connection assembly (1) according to one of the preceding claims, wherein the plug-in part (6) surrounds the coupling part (4).
    [5]
    Connection assembly (1) according to one of the preceding claims, wherein the inlet piece (2) is made in one piece.
    [6]
    Connection assembly (1) according to one of the preceding claims, wherein overlapping parts of the plug-in part (6) and the coupling part (4) are mutually connected by spacers (7).
    [7]
    Connection assembly (1) according to one of the preceding claims, wherein the insertion part (6) has a substantially constant wall thickness (d6). ¢. Connection assembly (1) according to one of the preceding claims, in which the coupling part (4) has a substantially constant wall thickness (d4). The connection assembly (1) according to any of the preceding claims, wherein the wall thickness (d4) of the coupling part (4) is approximately equal to that (d6) of the insertion part (6).
    [8]
    Connection assembly (1) according to one of the preceding claims, in which the inlet piece (2) is at least partially double-walled.
    [9]
    Connection assembly (1) according to one of the preceding claims, wherein the inlet piece (2) is of double-walled design at the area of the overlap between insert part (6) and coupling part (4).
    [10]
    A connection assembly (1) according to any one of the preceding claims wherein a first portion of the inlet piece (2) located in use in the transverse opening (23) has a greater wall thickness than a second portion of the inlet piece (2) in use is located outside the transverse opening.
    [11]
    The connection assembly (1) according to claim 12, wherein the first portion has a wall thickness that is approximately 1.5 to 2.5 times as large as that of the second portion, and preferably is approximately twice as large.
    [12]
    Connection assembly (1) according to one of the preceding claims, wherein the coupling part (4) comprises a sleeve.
    [13]
    Connection assembly (1) according to one of the preceding claims, wherein the coupling part (4) comprises a key.
    [14]
    Connection assembly (1) according to one of the preceding claims, wherein the coupling part (4) comprises locking means for fixing the first pipe (21) in tension-resistant manner during use.
    [15]
    Connection assembly (1) according to one of the preceding claims, wherein the coupling part (4) comprises sealing means for sealingly abutting against the first conduit (21) in use.
    [16]
    Connection assembly (1) according to one of the preceding claims, wherein the inlet piece (2) comprises first stop means (8) to limit the insertion depth (L6) of the inlet piece (2) in the second conduit (22).
    [17]
    The connection assembly (1) according to claim 18, wherein the first stop means (8) extend along the outer circumference of the inlet piece (2).
    [18]
    Connection assembly (1) according to one of claims 18 or 19, wherein an outer diameter of the first stop means (8) is larger than a diameter of the transverse opening (23).
    [19]
    Connection assembly (1) according to one of claims 18-20, wherein the first stop means (8) are located approximately halfway up the inlet piece (2), viewed in the axial direction.
    [20]
    Connection assembly (1) according to one of claims 18-21, wherein the first stop means (8) are located near a transition between the insertion part (6) and the coupling part (4).
    [21]
    Connection assembly (1) according to one of claims 18-22 and 10 * 17, wherein the first stop means (8) are located near a transition between the double-walled part and the single-walled part of the inlet piece (2).
    [22]
    Connection assembly (1) according to one of claims 18-23, wherein the first stop means (8) are adapted to be able to follow the curvature of the second conduit (22) around the transverse opening (23).
    [23]
    Connection assembly (1) according to one of claims 18-24, wherein the first stop means (8) comprise one or more cams, which together cover at least a part of the outer circumference of the inlet piece (2).
    [24]
    A connection assembly (1) according to any one of the preceding claims, wherein the inlet piece (2) comprises second stop means (5) to limit the coupling length (L4) between the inlet piece and the first line (21).
    [25]
    The connection assembly (1) according to claim 26, wherein the second stop means (5) extend along the inner circumference of the coupling part (4), preferably near one end thereof.
    [26]
    The connection assembly (1) according to any of claims 18-25 and 26-27, wherein the first stop means (8) and the second stop means (5) are arranged relative to each other such that the coupling length (L4) is greater than the insertion depth (L6).
    [27]
    The connection assembly (1) according to any of claims 18-25 and 26-28, wherein the axial distance between the first stop means (8) and the second stop means (5) is substantially equal to the insertion depth (L6) of the inlet piece (2).
    [28]
    The connection assembly (1) according to any of the preceding claims, wherein the insertion part (6) is substantially cylindrical.
    [29]
    A connection assembly (1) according to any one of the preceding claims, wherein the sealing sleeve (3) comprises a substantially cylindrical sealing body which, in use, can lie sealingly between the inlet piece (2) and the opening wall.
    [30]
    The connection assembly (1) according to claim 31, wherein the sealing sleeve, at least the cylindrical sealing body, has an axial length (L3) that is approximately equal to the wall thickness of the second conduit (22) at the location of the transverse opening (23).
    [31]
    The connection assembly (1) according to claim 31 or 32, wherein the sealing sleeve, at least the cylinder-shaped sealing body, has an axial length (L3) that is approximately equal to the insertion depth (L6) of the inlet piece (2).
    [32]
    Connection assembly (1) according to one of claims 31 * 33, wherein a grip and / or seal-raising profiling is provided along the outer circumference of the sealing sleeve (3), for example one or more ridges.
    [33]
    The connection assembly (1) according to claim 34, wherein the profiling extends around the entire outer circumference.
    [34]
    A connection assembly (1) according to any one of the preceding claims, wherein the sealing sleeve (3) comprises a collar 13 which, in use, can be sealingly abutting against an outer surface of the second conduit (22) around the transverse opening (23).
    [35]
    The connection assembly (1) according to any of claims 18 * 35 and 36, wherein the outer diameter of the first stop means (8) is approximately equal to or smaller than the outer diameter of the collar (13) of the sealing sleeve (3).
    [36]
    A connection assembly (1) according to any one of the preceding claims, wherein surfaces of the inlet piece (2) and the sealing sleeve (3) facing each other in use are provided with cooperating profiles (9, 11) which can engage each other in use.
    [37]
    The connection assembly (1) according to claim 38, wherein the cooperating profiles (9, 11) extend over a part of the insertion depth (L6) of the inlet piece (2), preferably near one end thereof.
    [38]
    The connection assembly (1) according to claim 38 or 39, wherein the cooperating profiles (9, 11) extend over substantially the entire length (L3) of the sealing sleeve (3).
    [39]
    The connection assembly (1) according to any of the claims 38 * 40, wherein the cooperating profiles (9, 11) extend around the full circumference of the inlet piece (2) and / or the sealing sleeve (3).
    [40]
    The connection assembly (1) according to one of claims 38 * 41, wherein the cooperating profiles (9, 11) have a complementary shape.
    [41]
    43. Connection assembly (1) according to one of claims 38 * 42, wherein the cooperating profiles (9, 11) engage in a form-locked manner.
    [42]
    A connection assembly (1) according to any one of claims 38-43, wherein the cooperating profiles (9, 11) interlock in a force-tight manner.
    [43]
    45. Connection assembly (1) according to one of the preceding claims, wherein an end edge (10) of the inlet piece (2) is provided with a bevel.
    [44]
    A connection assembly (1) according to any one of the preceding claims, wherein an end edge (10) of the inlet piece (2) comprises a tapered base portion (12) the envelope of which has a conical or curved course, and at least two regions (14) which are located radially inwards relative to said envelope, at some distance therefrom.
    [45]
    A connection assembly (1) according to any one of the preceding claims, wherein the sealing sleeve (3) is made from an elastomer.
    [46]
    A connection assembly (1) according to any one of the preceding claims, wherein the inlet piece (2) is made of a plastic and is dimensioned such that the stiffness of the inlet piece (2) is greater than that of the sealing sleeve (3), at least in radial direction.
    [47]
    A connection assembly (1) according to any one of the preceding claims, wherein the inlet piece (2) is made of the same material as the first conduit (21) to be connected, at least one material with comparable mechanical properties.
    [48]
    A connection assembly (1) according to any one of the preceding claims, wherein the sealing sleeve (3) and the inlet piece (2) are dimensioned such that the sealing sleeve (3) is compressed slightly between the inlet piece (2) and the opening wall in use.
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    同族专利:
    公开号 | 公开日
    BE1024454B1|2018-02-22|
    BE1024051B1|2017-11-08|
    NL1038294C2|2012-04-11|
    NL1038341C2|2012-04-11|
    NL1038342C2|2012-04-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3531142A|1968-08-05|1970-09-29|Raven Ind Inc|Tank fitting|
    DE3408835C2|1984-03-10|1987-01-29|Fa. Carl Freudenberg, 6940 Weinheim, De|
    DE3529112A1|1985-08-14|1987-02-26|Wolfgang Schwarz|Junction and a method for its production|
    FR2737766B1|1995-08-11|1997-09-19|Soc Et Et De Realisations Ind|DEVICE FOR THE RIGID AND SEALED FIXING OF TWO DUCTS|
    PL182801B1|1996-03-25|2002-03-29|Sendenhorst Kunststoffroehren|Concrete pipe branching connection|
    SE9604411L|1996-11-29|1998-05-30|Forsheda Ab|Pipe coupling|
    DE29800496U1|1998-01-14|1998-03-05|Sendenhorst Kunststoffroehren|Ball joint saddle|
    IT247385Y1|1999-09-17|2002-07-09|Polieco Srl|SEALING SYSTEM OF A CORRUGATED TUBE WITH A COCKPIT.|
    DE202006005685U1|2006-04-05|2007-08-16|Rehau Ag + Co|Connecting device for a secondary pipe|
    法律状态:
    2018-02-05| FG| Patent granted|Effective date: 20171031 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL1038294A|NL1038294C2|2010-10-07|2010-10-07|CONNECTION COMPOSITION FOR A BRANCH.|
    NL1038294|2010-10-07|
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