• 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:
    To a sealing element (5) for a repair clamp, which is designed for sealing at least one leaky region of a pipe for conducting fluid, in particular liquid and / or gas, formed tube, wherein the sealing element (5) between the tube and a for wrapping the sealing element (5) has at least one lip sealing element (8), as well as to further develop a repair clamp with such a sealing element (5) such that a particularly simple and quick handling is made possible, It is proposed that the lip sealing element (8) can be arranged without dead space on the pipe and that the lip sealing element (8) is designed to surround the leaking region of the pipe without interruption circumferentially.
    公开号:CH710872A2
    申请号:CH00281/16
    申请日:2016-03-05
    公开日:2016-09-15
    发明作者:Thomas Degen Dr；Schiess Hans-Rudolf
    申请人:Thomas Degen Dr；
    IPC主号:
    专利说明:

    Technical area
    The present invention relates to a sealing element according to the preamble of claim 1 and a repair clamp according to the preamble of claim 5.
    State of the art
    Underground pipes can be leaking after a few years due to corrosion holes. The emergence of these holes is usually favored by improper laying and embedding of pipes, ductile iron pipes of the first generation, which have only a low protection potential against internal and external influences, or by skins on metallic pipe surfaces, which does not properly remove before covering the pipes were. These holes and the surrounding corrosion damage are typically located only on one side of the tube and limited in length. The axial length of the external corrosion damage usually corresponds to the length of the underlay woods used.
    Repair clamps are characterized by the fact that they can be mounted over an existing pipe, without the pipe must be separated.
    From the document DE 10 2012 101 553 A1 a sleeve-like sealing element is known, which is designed to seal two pipes together. This sealing element is annular in cross-section and therefore can not be mounted from the side of a pipe but must be pulled from a pipe end axially over the pipe.
    A sealing element according to the preamble of claim 1 and a repair clamp according to the preamble of claim 5 is known from the document DE 8 228 939 U1. This sealing element is formed in cross section in the manner of an open circle, that has two open ends. This sealing element is arranged around the defective tube so that it covers the entire circumference of the tube. The sealing element is arranged around the entire circumference of the tube, as with a dressing. For clamping the sealing element, a clamp-like clamping element is arranged around the entire circumference of the sealing element. By means of clamping screws, the ends of this clamping element are mutually movable, whereby the circumference of the clamping element is reduced in size.
    DESCRIPTION OF THE INVENTION: Problem, Solution, Advantages
    The present invention has the object, a sealing element of the type mentioned and a repair clamp of the type mentioned in such a way that a particularly simple and quick handling is possible.
    This object is achieved by a sealing element with the features specified in claim 1 and by a repair clamp with the features specified in claim 5. Advantageous embodiments and expedient developments of the present invention are characterized in the respective subclaims.
    According to the invention, the lip seal element can be arranged without dead space on the pipe, in particular free space connected to the pipe. The term is to see dead space in relation to the flow. In the present case, a dead space is a space in which the fluid stands. In the present case, a dead space is thus a fluid-filled region which is not traversed by the fluid.
    The lip seal member is formed such that fluid exiting the leaky region of the tube flows through the region between the tube and the lip seal member and enclosed by the lip seal member. Thus, the area facing the tube and surrounded by the lip seal area is traversed by the exiting fluid from the tube, and it can no bacteria settle on the walls of the sealing element or the tube and multiply.
    To connect the lip seal element dead space with the tube, the lip seal element has at least one dead space-free profile. For example, the lip seal member may be formed of at least one upper lip and at least one lower lip, wherein in the use position of the lip seal member, the upper lip and the lower lip do not touch. The lip sealing element is thus preferably designed as an open lip sealing element.
    Another essential feature of the present invention is that the lip seal member encloses the leaking area of the tube without interruption circumferentially. The lip sealing element is thus formed as a closed element which encloses the leaking region of the tube circumferentially.
    For example, the lip sealing element may be formed from at least one closed band, for example from a closed double band.
    Advantageously, the lip seal element has both overpressure as acting on negative pressure lip elements or lip seals, which surround the leaking area of the pipe or the point of damage in the tube circumferentially and without interruption. The lip seals are designed such that they surround the leaking area of the tube all around sealing both in fitting in the pipe overpressure as well as in the pipe adjacent vacuum.
    Thus, the lip seal member at least one lip-like shaped, in particular arcuately extending in a direction away from the sealing body direction, and sealingly compressed in use position between the sealing body and the tube first lip seal and at least one lip-like shaped, in particular arcuately facing away from the sealing body Having direction extending, and pressed in the use position between the sealing body and the tube further lip seal. For example, the lip seal member may be formed of a closed and uninterrupted lip seal double band.
    The first lip seal is advantageously symmetrical, in particular substantially mirror-symmetrical, arranged for further lip seal. Thus, the first lip seal may be designed to bear tightly against the pipe when pressure prevails in the pipe. The additional lip seal can be designed to bear sealingly against the pipe when the vacuum prevails in the pipe. The first lip seal, in particular the first lip, can thus act on overpressure and the further lip seal, in particular the further lip, on negative pressure or vice versa.
    Regardless of or in connection herewith, the sealing element may comprise nub elements or nubs which minimize the volume of the fluid enclosed between the seal and the tube, for example water. These nubble elements substantially reduce the pressure surface of the fluid emerging from the tube from the sealing element.
    Thus, the area enclosed by the lip sealing element area can be easily traversed by the fluid, advantageously run around the nub elements uninterrupted interconnected grooves.
    The sealing element is designed for sealing the leaky region of the tube and can be arranged on a pipe facing the inner side of the sealing body. The sealing body is designed for surrounding or for wrapping or for sheathing the leaky region of the pipe and can be arranged on an outer surface of the pipe of the repair clamp.
    The sealing element is preferably formed from at least one galvanically insulating material, for example made of rubber. It is preferably produced by means of a casting process.
    The present invention further relates to a repair clamp for sealing at least one leaky region of a pipe designed to conduct fluid, in particular liquid and / or gasat least one sealing body formed to encase the leaky region of the pipe, in particular at least one jacket element, for example at least one steel sheet, wherein the sealing body is assigned at least one sealing element according to the above-described type, andat least one for clamping the sealing element between the tube and the sealing body formed clamping body, in particular at least one sheath element end connecting element, such as at least one bracket.
    In an advantageous embodiment of the present invention, the repair clamp further comprises at least one of the clamping body associated contact pressure adjustment means.
    For example, the repair clamp essentially fromthe sealing body, which may be formed from a bent sheet steel,the sealing element, which is assigned to the sealing body and can preferably be arranged exchangeably on the sealing body,the preferably bow-shaped, for example wedge-shaped, clamping body which is connected on one side by means of an articulated connecting element with the sealing body and is connected on the other side by means of a releasable non-positive locking element with the sealing body, andconsist of at least one contact pressure adjusting means or at least one pressing device.
    An essential feature of a preferred embodiment of the inventive repair clamp is that sealing body and clamping body are two separate or separate elements.
    In a particularly advantageous embodiment of the repair clamp of the present invention, the sealing body envelops only a portion of the circumference of the tube. In this case, the sealing element is arranged exclusively in the area enclosed by the sealing body of the tube. The sealing element thus does not envelop, as in a bandage, the entire circumference of the tube but, as in the case of a plaster, is arranged only on a partial region of the circumference of the tube.
    The clamping body is adapted to pull the sealing body with a directed perpendicular to the longitudinal axis of the repair clamp force to the clamping body. In this way, the sealing element between the sealing body and the tube is clamped.
    The sealing body is advantageously formed in cross-section arcuate or part-circular and has two spaced-apart ends. This makes it possible to attach the sealing body laterally on the pipe.
    For connecting the sealing body with the clamping body, the sealing body advantageously at one end a hinged connecting element, for example a hinge on This allows that in an open position of the repair clamp of the sealing body and the clamping body about a common axis of rotation are rotatable relative to each other. Thus, in the open position of the repair clamp the repair clamp can be easily arranged on the outside of the pipe without damaging the pipe or even split. For example, for arranging the repair clamp on the outside of the pipe, the repair clamp in the open position can be pushed laterally onto the pipe.
    To open and close the repair clamp, the other end of the sealing body, in particular a second axially extending end portion of the sealing body, advantageously a non-positive closure element, in particular a snap closure element or a click closure element, which is releasably connectable with a counterpart arranged on the clamping body , In an advantageous embodiment of the present invention, for example, the steel sheet and the bracket can be connected on one side with a snap closure or a click closure.
    To regulate the contact pressure with which the repair clamp is pressed against the tube, the clamping body advantageously has at least one contact pressure adjusting means. This contact pressure adjusting means is designed to press the clamping body in a direction away from the sealing body. For example, by pressing the contact pressure adjusting means, this contact pressure adjusting means can be pressed onto at least one clamping element which is assigned to the clamping body and is designed for direct or indirect contact with the pipe, for example a metallic support element. This causes the clamping body is pressed away from the support element. As a result, the sealing body is pressed towards the clamping body and thus against the tube.
    For example, the contact pressure adjusting means may comprise at least one screw and at least one lock nut. By turning the screw, the screw head can be moved towards the lock nut and away from the lock nut. The screw and the lock nut are arranged on the clamping body such that the force exerted by the screw on the support element or the pressure exerted by the screw on the support element increases, the smaller the distance between the screw head and the lock nut.
    The clamping body is adapted to act upon the sealing body with a force directed towards the clamping body. The strength of the force exerted by the clamping body on the sealing body, force is dependent on the strength of, exerted by the contact pressure adjusting means on the support member, force. This interaction of clamping body and sealing body has the advantage that diameter tolerances of the tube can be compensated and the sealing element, despite the diameter tolerances of the tube sealingly between the tube and the sealing body is compressible. In this case, the clamping body is advantageously designed so that the entire tolerance of a pipe size is compensated.
    The sealing element is advantageously designed as a removable element or as an exchangeable sealing element. In order to enable replacement of the sealing element, this is advantageously releasably connectable to the sealing body. For example, can sit in the steel sheet a replaceable seal. The repair clamp is reusable with a new or replaced sealing element.
    The sealing body and / or the clamping body and / or the tube may be made of electrically conductive material, in particular of at least one metal, for example of steel, such as sheet steel. Advantageously, the gasket isolates the sealing body, which may be formed, for example, as a steel strip, galvanically from the tube.
    Regardless thereof, or in connection herewith, the clamping body is advantageously designed so that no point support on the tube but that the support element is fixed to at least two spaced or separate support areas, in particular at least two independent support lines on the tube. To provide these separate support areas, the support element can be assigned a support body, wherein the support body has at least two mutually separate support areas, which lie directly in the position of use of the repair clamp on the pipe. The support element may for example be a longitudinally substantially U-shaped rail. The bearing of the support element on at least two, preferably symmetrically arranged, support areas has the advantage that the risk of slipping when tightening the pressing is prevented.
    Advantageously, the sealing body, in particular the steel sheet, pressed by the clamping body, in particular the bracket, by means of the contact pressure adjusting means or the pressing device on the tube.
    Sealing body, clamping body and contact pressure adjustment means can be arranged on the outside of the tube.
    In an advantageous embodiment of the present invention, an arcuate or partially circular shaped sealing body for fixing the sealing element at least two holding elements and / or at least two clamping elements.
    The holding elements are preferably arranged on the opposite and in cross-section arcuate or part-circular ends of the sealing body. Advantageously, starting from the arcuate or part-circular ends of the sealing body, the retaining elements extend radially inwardly in such a way that the sealing element can be arranged between the retaining elements so as to be slip-proof and can be fixed in the direction of the longitudinal axis of the repair clip.
    The clamping elements are advantageously arranged on two opposite and extending in the longitudinal direction of the sealing body axial end portions of the sealing body, in particular on the respective tube facing the inside of the axially extending end portions of the sealing body arranged. The clamping elements are designed to prevent slippage of the sealing element in the circumferential direction of the sealing body.
    The repair clamp of the present invention is characterized in that it can be mounted over an existing pipe, without the pipe must be separated. The sealing element of the type set forth above and the repair clamp described here are characterized by a particularly simple and quick handling, low installation space consumption and an installation in which a contact of the sealing element with the soil in the trench is practically excluded. In particular, the repair clamp can be mounted without tools on the pipe and holds in a first moment alone with the help of the releasable non-positive closure element, in particular the snap closure or the click fastener, the clamping body and the sealing body.
    Brief description of the drawings
    As already discussed above, there are various possibilities to advantageously design and develop the teaching of the present invention. For this purpose, reference is made on the one hand to the claims subordinate to claim 1 and claim 5, on the other hand, further refinements, features and advantages of the present invention will be explained below, inter alia, with reference to the embodiment illustrated by FIG. 1 to FIG.
    It shows:<Tb> FIG. 1 is an isometric view of an exemplary embodiment of a repair clamp according to the present invention with an exemplary embodiment of a sealing element according to the present invention;<Tb> FIG. 2 is an isometric view of the repair clamp of FIG. 1 with an insulating element formed between the support element and the pipe for galvanic isolation; FIG.<Tb> FIG. 3 <SEP> in cross-section of the repair clamp of Fig. 1 and<Tb> FIG. 4 is an isometric view of the sealing element from FIG. 1.
    The same or similar embodiments, elements or features are provided in FIG. 1 to FIG. 4 with identical reference numerals.
    Best way to carry out the invention
    In the embodiment of the present invention illustrated with reference to Figures 1 to 4 there is shown a reusable repair clamp adapted to seal localized corrosion damage to buried ductile iron pipes in the water and gas supply.
    This repair clamp consists of a formed as a sealing body bent or rolled steel sheet 1, on one side a hinged connecting element, namely a hinge 2, and on the other side a frictional connection element, namely a snap closure. 3
    The sealing body 1 is closed by means of a clamping body 4, which is connected on one side with the hinge 2 and on the other side has a counterpart to the snap closure 3.
    On the inside of the curved sealing body 1 is an interchangeable sealing element. 5
    The sealing body 1 is additionally bent on the two front sides such that the sealing body 1 has a holding element 6 for fixing the sealing element 5 in the axial direction. Together with a arranged in the region of the hinge 2 between the sealing body 1 and the sealing element 5 clamping element 7, in particular with a bar, and the snap closure 3, the sealing element 5 is held in place. Wherein the seal 5 ensures the galvanic isolation between the sealing body 1 and the tube 200.
    The sealing element 5 itself has both closed and negative pressure acting closed all around lip seals 8. The lip seals 8 are nowhere interrupted and are fixed by the sealing body 1 on the tube 200. The lip seals 8 use the pressure of the medium to ensure the necessary contact pressure on the tube 200. The sealing element 5 additionally has nubs 9 in order to minimize the volume of the enclosed medium.
    The clamping body 4 itself has a device to pull the sealing body 1 fixed to the tube 200. One possible implementation consists of a longitudinally U-shaped support element 10, which is pressed by means of, for example, five screws 11 on the tube 200, at the same time pushes the clamping body 4 from the tube 200 and thus the, formed for example of stainless steel sheet, sealing body 1 firmly the tube 200 presses. The clamping body 4 itself has no sealing function.
    The screws 11 are all on the same side of the repair clamp and are secured with lock nuts 12. The screws 11 are easily accessible in any position and can be tightened without special tools.
    Both the sealing body 1 as well as the clamping body 4 each have a handle 13, which simplify the assembly.
    FIG. 2 shows the repair clamp from FIG. 1 with an insulating element 17 assigned to the support element 10. This insulating element 17 is designed as a replacement element.
    The insulating member 17 is adapted to electrically isolate the support member 10 from the pipe 200. The insulating element 17 is not shown in FIGS. 1 and 3.
    The insulating member 17 may be formed for example of rubber. For example, the insulating element 17 may be a rubber pad which can be applied to the U-shaped profile of the support element 10. The rubber pad can be interchangeable.
    The insulating member 17 itself has no sealing function. It only serves the galvanic isolation between support element 10 and tube 200th
    LIST OF REFERENCE NUMBERS
    [0057]<tb> 1 <SEP> Sealing body, in particular bow-shaped or partially circular sealing body, for example jacket element, such as curved or rolled steel sheet, the repair clamp 100th<tb> 2 <SEP> articulated connecting element, in particular hinge, of the sealing body 1<tb> 3 <SEP> non-positive closure element, in particular snap closure element or click closure element of the sealing body 1 of the repair clamp<tb> 4 <SEP> clamping body, in particular sheath element end connecting element, for example, bracket, approximately for closing the sealing body 1 trained bracket, wherein the clamping body 4 is preferably connected on one side with the articulated connection element 2 and on the other side the counterpart to Closing element 3 of the sealing body 1 has<tb> 5 <SEP> Sealing element, in particular seal, for example, arranged on the inside of the sealing body 1, approximately for galvanic isolation between the sealing body 1 and to be repaired tube 200 formed sealing element<tb> 6 <SEP> holding element for fixing the sealing element 5 in the axial direction, in particular radially inwardly bent shaping of the sealing body. 1<tb> 7 <SEP> Clamping element, in particular strip, for preventing movement of the sealing element 5 in the circumferential direction of the sealing body 1<tb> 8 <SEP> Lip seal member of the seal member 5<tb> 9 <SEP> Nub element, in particular nubs, of the sealing element 5<tb> 10 <SEP> support element, in particular metallic support element, for example, in longitudinal section U-shaped profile or U-shaped rail which is pressable by means of contact pressure adjustment means 11, 12 to the pipe 200 and thereby pushes the clamping body 4 away from the pipe 200<tb> 11 <SEP> Contact pressure adjusting means, especially screw<tb> 12 <SEP> further contact pressure adjusting means, in particular counter nut<tb> 13 <SEP> Handle of the sealing body 1 or the clamping body 4<tb> 14 <SEP> first support surface or first support region, in particular first support line, of the support body 16<tb> 15 <SEP> further contact surface or further support region, in particular further support line, of the support body 16<Tb> 16 <September> support body<Tb> 17 <September> insulating<tb> 18 <SEP> first lip seal, in particular first lip, of the lip seal element 8<tb> 19 <SEP> further lip seal, in particular further lip, of the lip seal element 8<tb> 20 <SEP> corresponding recess of the sealing element 5 for holding element 6 of the sealing body. 1<tb> 22 <SEP> corresponding recess of the sealing element 5 for clamping element 7 of the sealing body. 1<tb> 24 <SEP> first end of the sealing body 1<tb> 25 <SEP> second end of the sealing body 1<tb> 26 <SEP> around the nub elements 9 uninterrupted running at least one groove<tb> 200 <SEP> Pipe, especially piping
    权利要求:
    Claims (10)
    [1]
    A sealing element (5) for a repair clamp (100), which is designed to seal at least one leaky region of a pipe (200) formed for conducting fluid, in particular liquid and / or gas, the sealing element (5) being between the tube (200) and a sealing body (1) of the repair clamp (100) designed to encase the leaky region of the tube (200) can be clamped and wherein the sealing element (5) has at least one lip seal element (8), characterized in that the lip seal element (8) can be arranged without dead space on the tube (200) and that the lip sealing element (8) is designed to enclose the leaking region of the tube (200) without interruption circumferentially.
    [2]
    2. Sealing element according to claim 1, characterized in that the lip sealing element (8) at least one of the body of the sealing element (5) projecting, in particular arcuately extending in a direction away from the sealing body (1) direction extending first lip seal (18) and at least one of Having the sealing element (5) protruding, in particular arcuately extending in a direction away from the sealing body (1) direction, further lip seal (19), wherein the first lip seal (18) and the further lip seal (19) symmetrical, in particular substantially mirror-symmetrical, are arranged to each other.
    [3]
    3. Sealing element according to claim 1 or 2, characterized in that the lip seal (18) acts both on overpressure as on negative pressure, in particular that the first lip seal (18) is formed in the position of use of the sealing element (5) sealingly on the tube (200). abut, when from the leaky region of the tube (200) exiting fluid this first lip seal (18) subjected to overpressure and the further lip seal (19) is adapted to rest in the position of use of the sealing element (5) sealingly on the tube (200) when out the leaking portion of the tube (200) exiting fluid this negative lip seal (19) subjected to negative pressure.
    [4]
    4. Sealing element according to at least one of claims 1 to 3, characterized by at least one nub element (9) which is adapted to the volume of leaking from the leaky region of the tube (200) and between the sealing element (5) and the tube (200 ) to minimize trapped fluid.
    [5]
    5. repair clamp (100), for sealing at least a leaky region of a fluid for conducting, in particular liquid and / or gas, formed tube (200), characterized byA sealing body (1) designed to envelop at least one leaky region of the tube (200), wherein the sealing body (1) is assigned at least one sealing element (5) designed according to at least one of claims 1 to 4, and- A for clamping the sealing element (5) between the tube (200) and the sealing body (1) formed clamping body (4).
    [6]
    6. repair clamp (100) according to claim 5, characterized in that- The sealing body (1) only a portion of the circumference of the tube (200) wrapped and- The sealing element (5) exclusively in the sealing body (1) wrapped region of the tube (200) is arranged.
    [7]
    7. Repair clamp according to claim 5 or 6, characterized in that the clamping body (23) is adapted to pull the sealing body (1) with a perpendicular to the longitudinal axis of the repair clamp (100) directed force to the clamping body (23).
    [8]
    8. Repair clamp according to at least one of claims 5 to 7, characterized in that the sealing body (1) is formed partially circular in cross section and two spaced-apart ends (24, 25).
    [9]
    9. Repair clamp according to claim 8, characterized by an articulated connecting element (2), in particular a hinge (2) which connects one end (24) of the sealing body (1) with the clamping body (23).
    [10]
    10. Repair clamp according to claim 8 or 9, characterized by at least one frictional closure element (3), in particular at least one snap closure element or at least one click closure element, which connects the other end (25) of the sealing body (1) releasably connected to the clamping body (23).
    类似技术:
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    EP3165804B1|2017-11-29|Connection of two pipe break seal ring and sealing assembly
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    EP0392148B1|1992-10-28|Pipe connection
    同族专利:
    公开号 | 公开日
    CH710872B1|2020-10-30|
    DE102016104014A1|2016-09-08|
    DE202015102132U1|2016-03-03|
    DE202016101202U1|2016-06-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH653113A5|1981-11-05|1985-12-13|Immanuel Straub|PIPE COUPLING AND USE THEREOF.|
    DE102012101553A1|2012-02-27|2013-08-29|Rehau Ag + Co.|Collar for pressing a sealing collar to a first and a second tube and system and arrangement with such a sleeve|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015103257|2015-03-05|
    DE202015102132.1U|DE202015102132U1|2015-03-05|2015-04-28|Sealing element and repair clamp|
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