• 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:
    A fluid circuit, in particular for an aircraft, comprising a first pipe (1), a second pipe (2) and a connection fitting (3) comprising an outer sleeve (4) which extends along an axis X and is mounted sliding along the X axis at a connection end (1A) of the first pipe (1), a sealing member (5) which extends along the X axis and is slidably mounted along the X axis in said outer sleeve (4), the sealing member (5) being configured to sealingly connect the connection ends (1A, 2B) of the pipes (1, 2), locking means (6) configured to cooperate with a blocking member (22) of the second pipe (2) for blocking the translation of said outer sleeve (4) towards the first pipe (1), the coupling (3) being configured to move the sealing member (5) between the two connection ends (1A, 2B) for sealing during the movement of the outer sleeve (4) to the locking member (22) of the second pipe (2).
    公开号:FR3060702A1
    申请号:FR1662701
    申请日:2016-12-19
    公开日:2018-06-22
    发明作者:Damien Sireude；Daniel Perherin；Thierry Aletrut；Pascal Solana；Dimitri Rouyard
    申请人:Stelia Aerospace SAS；
    IPC主号:
    专利说明:

    GENERAL TECHNICAL AREA AND PRIOR ART
    The present invention relates to the field of fluid circuits in an aircraft, for example, a circuit for drinking water, waste water, drainage, etc.
    In known manner, a fluid circuit comprises a plurality of pipes mechanically and fluidly connected to each other. During the establishment of a fluid circuit in an aircraft, the pipes are secured independently to the structure of the aircraft and then fluidly connected to each other. In other words, the pipes are not movable relative to each other but fixed during a connection, with the exception of thermal expansion. In practice, a small axial clearance can be envisaged to allow the taking into account of the relative deformations or displacement between the pipes and the surrounding supporting structure.
    To connect a first pipe to a second pipe, it is known to use an elastic sleeve in order to join the two ends of the pipes. To seal between the sleeve and each pipe, a hose clamp must be fitted at each end of the sleeve. Such a connection has many drawbacks. Indeed, the installation of the sleeve and the clamps is time consuming and impractical, which increases the cost of setting up a fluid circuit. A connection device is also known from patent application EP0616161 comprising mechanical claws but the latter are likely to scratch / injure the pipes, which is not acceptable for a qualitative application in the aeronautical field.
    The invention therefore aims to remedy these drawbacks by proposing a new type of connection and a new method of connecting two fixed pipes, in particular for an aeronautical application.
    GENERAL PRESENTATION OF THE INVENTION
    To this end, the invention relates to a fluid circuit, in particular for aircraft, comprising a first pipe, a second pipe and a connection connector, each pipe comprising a connection end, extending along an axis X and defining a inner surface and an outer surface, which comprises a locking member extending radially with respect to said axis X from the outer surface, the connection ends of the pipes being fixed and spaced from an axial connection clearance, the connection of link including:
    o an outer sleeve which extends along the X axis and is slidably mounted along the X axis at the connection end of the first pipe, the outer sleeve being configured to connect the two connection ends during movement from upstream to downstream, o a sealing member which extends along the X axis and is slidably mounted along the X axis in said outer sleeve, the sealing member being configured to seal the two connection ends, o locking means configured to cooperate with the blocking member of the second pipe to block the translation of said outer sleeve upstream towards the first pipe, the connector being configured to move the sealing member between the two connection ends for sealing when moving the outer sleeve downstream to the blocking member of the second channel isation.
    Thanks to the invention, two pipes remote from an axial connection set can be physically and fluidly connected by simple displacement downstream of the connection connector. In fact, the connection fitting makes it possible, on the one hand, to physically join the pipes together thanks to the external sleeve and, on the other hand, to fluidly connect the pipes thanks to the sealing member. Advantageously, the outer sleeve allows the sealing member to be positioned precisely at the interface between the pipes, which ensures optimum sealing.
    In addition, such a connection fitting allows an operator to connect the pipes in a simple and practical manner, by simply moving the outer sleeve on the first pipe. A connection can thus be carried out with one hand by an operator.
    In addition, the connecting fitting has few simple structural elements which can be produced at a limited cost, which is advantageous.
    Preferably, the sealing member is removable from the outer sleeve, which advantageously makes it possible to replace said sealing member in the event of wear.
    Preferably, the outer sleeve comprises first abutment means configured to cooperate with the sealing member in order to move it concomitantly with the movement of the outer sleeve towards the downstream. Thus, the sealing member is on standby before the connection and is moved into the position of use only when a connection is desired.
    Preferably, the first stop means are in the form of a first inner stop wall, preferably annular.
    More preferably, the first stop means extend radially outside the blocking member of the first pipe with respect to the axis X. Thus, the first stop means do not come into contact with the blocking member during downstream movement.
    According to one aspect of the invention, the outer sleeve comprises second abutment means configured to cooperate with the blocking member of the first pipe to prevent the withdrawal of the outer sleeve from the first pipe. Thus, the outer sleeve cannot be removed from the first downstream pipe due to the presence of the locking member.
    Preferably, the outer sleeve having an upstream end intended to extend on the side of the first pipe in the locked position and a downstream end intended to extend on the side of the second pipe in the locked position, the locking means are mounted at the downstream end of the outer sleeve.
    Preferably, the locking means are configured to extend downstream of the blocking member of the second pipe in the locked position. Thus, the outer sleeve can no longer move upstream.
    According to a preferred aspect, the locking means being deformable between its locked state and its unlocked state, the connection fitting comprises securing means configured to prevent deformation of the locking means in the locked state. Thus, the locking is automatic when the outer sleeve is moved. Such locking means also make it possible to avoid any injury / scratching of the pipes, which is essential for an aeronautical application.
    Preferably, the locking means are configured to deform radially when it comes into contact with the blocking member of the second pipe when the connection fitting moves downstream. Preferably, the blocking member of the second pipe comprises for this purpose a flared wall so as to guide the deformation of the locking means. Preferably, the locking means are adapted to deform under the effect of a mechanical force applied by the operator. More preferably, the locking means are made of elastic material so as to retract radially after contact with the blocking member of the second pipe.
    Preferably, the locking means are in the form of a peripheral locking member mounted internally to the outer sleeve. More preferably, the locking member comprises two articulated jaws adapted to be open in the unlocked state and closed in the locked state.
    Preferably, the downstream end of the outer sleeve has a locking opening allowing access to said locking member, the securing means are mounted in said opening. Thus, the operator can manually secure the locking means.
    Preferably, the pipes are made of plastic.
    Preferably, each pipe comprises at least one connection end with a connection connection and at least one connection end without connection connection in order to allow a series connection of several pipes.
    Preferably, the sealing member comprises at least one upstream seal capable of cooperating with the connection end of the first pipe and at least one downstream seal capable of cooperating with the connection end from the second pipeline.
    The invention also relates to an aircraft comprising a fluid circuit as presented above, in which the first pipe and the second pipe are secured to a structure of the aircraft, the connection ends of the pipes being fixed and spaced from a clearance axial connection.
    The invention further relates to a method of connecting a first pipe and a second pipe by means of a connection fitting of a fluid circuit according to the invention, the connection ends of the pipes being fixed and spaced an axial connection set, the connection connector extending over the connection end of the first pipe, the method comprises:
    a step of moving upstream and downstream of the outer sleeve of the connection fitting to the blocking member of the second pipe so as to move the sealing member between the two connection ends to ensure the sealing between the two pipes and a step of locking the outer sleeve on the second pipe.
    Thus, the pipes are physically and fluidly connected in a simple and practical manner by an operator, preferably, by means of one hand. Preferably, the locking step is performed automatically when moving downstream.
    Preferably, the connection method comprises a step of securing the locking of the outer sleeve on the second pipe so as to prevent any involuntary unlocking. Preferably, in the locked position, the locking means extend downstream of the blocking member of the second pipe.
    PRESENTATION OF THE FIGURES
    The invention will be better understood on reading the description which follows, given solely by way of example, and referring to the appended drawings in which:
    Figure 1 is a schematic representation of a fluid circuit according to the invention comprising two connected pipes;
    Figure 2 is a schematic representation of a pipe according to an embodiment according to the invention;
    Figure 3 is a schematic sectional representation of a fluid circuit according to the invention comprising two unconnected pipes; Figure 4 is a schematic representation of a connector according to an embodiment according to the invention;
    Figures 5 to 8 show, in sectional view, steps of connecting two pipes according to an implementation of the connection method according to the invention;
    Figure 9 is a perspective representation of the connected pipes; Figure 10 is a schematic sectional representation of the steps of moving the outer sleeve during the connection;
    Figure 11 is a schematic representation in partial section of a pipe fitted with a plug; and Figure 12 is a schematic sectional representation of another embodiment of a connection fitting according to the invention.
    DESCRIPTION OF ONE OR MORE MODES OF IMPLEMENTATION AND IMPLEMENTATION
    It should be noted that the figures show the invention in detail to implement the invention, said figures can of course be used to better define the invention if necessary.
    From now on, there will be a fluid circuit according to the invention intended for aeronautical use, in particular for the transport of fuel, water and oxygen, air, fire-rated gases, etc.
    In this example, the fluid circuit includes a plurality of pipes which are matched with each other to guide a fluid. For an aeronautical application, the individual pipes are firstly joined to an aircraft structure and then, secondly, connected to each other.
    Subsequently, the invention will be presented for the connection of two pipes of a fluid circuit but it goes without saying that the invention applies to the connection of more than two pipes.
    Referring to Figure 1, there is shown an embodiment of a fluid circuit according to the invention which comprises a first pipe 1, a second pipe 2 and a connection connector 3, mounted on the first pipe 1, so to connect the first pipe 1 to the second pipe 2.
    In this embodiment, each pipe comprises a tubular body which is terminated at each end by a connection end piece. Thus, each connection end piece forms a connection end of the pipe. In this embodiment, for each pipe, one connection end is equipped with a connection fitting and is designated "active connection end" while the other connection end is devoid of connection connection and is designated "end passive connection ”. The tubular body of each pipe preferably has curved portions so as to allow the fluid circuit to connect different pieces of equipment in a practical manner, bypassing positioning constraints. In addition, each pipe defines an interior surface, in contact with the fluid to be driven, and an exterior surface, opposite the interior surface.
    In this example, the two pipes 1, 2 have a similar structure, only the tubular bodies of the pipes 1, 2 being different. For the sake of clarity and conciseness, only Ια first line 1 will be described in detail, the second line 2 being similar.
    Referring to Figure 2, there is shown schematically the first pipe 1 which comprises a tubular body 10 connected, on the one hand, to a first end piece 11 equipped with a connection fitting 3 in order to form a connection end activates 1A and, on the other hand, a second endpiece 11 'devoid of connection connector 3 in order to form a passive connection end IB. As illustrated in FIG. 2, the tubular body 10 includes a curved portion 10C. The diameter of the tubular body 10 and / or of each connection end of the first pipe 1 is preferably between 6.35 mm and 50.8 mm. Preferably, the first pipe 1 is made of plastic material but it goes without saying that other materials could be suitable, for example, a metallic material.
    Subsequently, with reference to FIG. 3, an active connection end IA will be presented with reference to the first pipe 1 while a passive connection end 2B will be presented with reference to the second pipe 2 in order to present a connection of the two pipes 1,2.
    Referring to Figure 3, the connection ends 1 A, 2B are aligned along an axis X and are spaced from an axial connection clearance Jx. In the figures, the axis X is oriented from upstream to downstream which corresponds to the direction of movement of the connection fitting 3 during a connection.
    The first nozzle 11 of the first pipe 1 comprises a blocking member 12 which extends in radial projection relative to said axis X from the outer surface. In this example, the locking member 12 is in the form of an annular crown but it goes without saying that other shapes could be suitable, in particular, a crenellated crown or a lug. Preferably, the locking member 12 has an axial thickness of the order of 2 mm and a radial length of between 2 mm and 6 mm relative to the axis X. With reference to FIG. 3, the first end piece it successively comprises, from upstream to downstream, a first longitudinal portion 112, the locking member 12 and a second longitudinal portion 111. In this example, the first longitudinal portion 112 has a length of the order of 10 mm while the second longitudinal portion 111 has a length of the order of 13 mm.
    Likewise, the second end piece 21 of the second pipe 2 comprises a locking member 22 which extends in radial projection relative to said axis X from the external surface. In this example, the locking member 22 is in the form of an annular ring, but it goes without saying that other shapes could be suitable. Similarly, the locking member 22 has an axial thickness of the order of 2 mm and a radial length of between 2 mm and 6 mm relative to the axis X. With reference to FIG. 3, the second end piece 21 successively comprises, from upstream to downstream, a first longitudinal portion 212, the locking member 22 and a second longitudinal portion 211. In this example, the first longitudinal portion 212 has a length of the order of 10 mm while the second longitudinal portion 211 has a length of around 17 mm. The blocking member 22 is flared from upstream to downstream in order to allow progressive deformation of the locking means of the connection fitting as will be presented below. In this example, the connection ends 11, 21 are different, but it goes without saying that they could be identical.
    Referring to Figures 3 and 4, there is shown a preferred embodiment of a connecting connector 3 according to the invention. The connection connector 3 extends longitudinally along an axis W oriented from upstream to downstream. In the mounted position, the X and W axes are combined.
    The connecting connector 3 comprises an outer sleeve 4 in which is mounted a sealing member 5 configured to seal the two connection ends ΙΑ, 2B of the pipes 1, 2, in particular, the longitudinal ends 111,211. According to the invention, the connecting connector 3 is configured to move the sealing member 5 between the two connection ends 1 A, 2B to ensure sealing during the movement of the outer sleeve 4 to the blocking 22 of the second pipe 2. The connecting connector 3 further comprises locking means 6 configured to cooperate with the blocking member 22 of the second pipe 2 to block the translation of said outer sleeve 4 towards the first pipe 1 and security means 7 configured to prevent any involuntary unlocking. As will be presented below, such a connection fitting 3 allows it to be handled with one hand by an operator in order to connect two pipes 1, 2 in a practical and reliable manner. The various elements of the connection fitting 3 will now be presented in detail.
    As illustrated in FIG. 4, the external sleeve 4 is in the form of a peripheral envelope which extends axially along the axis W. In the mounted position, the external sleeve 4 is adapted to slide along the axis X on the active connection end 1A of the first pipe 1. The outer sleeve 4 has an upstream end intended to extend on the side of the first pipe 1 in the locked position and a downstream end intended to extend on the side of the second line 2 in locked position.
    In this example, the outer sleeve 4 comprises first stop means configured to cooperate with the sealing member 5 in order to move it concomitantly with the movement of the outer sleeve 4. In this example, the first stop means are present under the form of a first stop wall 43 adapted to cooperate with the sealing member 5. The first stop wall 43 is annular and extends internally to the outer sleeve 4. In this example, the first stop wall 43 has an inner diameter greater than the outer diameter of the blocking member 12. In other words, the first abutment wall 43 extends radially outside the blocking member 12 of the first pipe 1 relative to the axis X Thus, the first abutment wall 43 is not hampered by the locking member 12 to come into contact with the sealing member 5.
    Referring to Figure 4, the outer sleeve 4 comprises second stop means configured to cooperate with the locking member 12 of the first pipe 1 to prevent the removal of the outer sleeve 4 from the first pipe 1. Thus, the sleeve exterior 4 is not removable from the first pipe 1, which facilitates the installation of pipes. It goes without saying that the outer sleeve 4 could be removable if necessary.
    In this example, the second stop means 44 are in the form of a second stop wall 44 which is annular and extends internally to the outer sleeve 4. As illustrated in FIG. 4, the second stop wall 44 s extends downstream of the first abutment wall 43. In this example, the second abutment wall 44 has an internal diameter greater than the diameter of the tubular body 10 and less than that of the locking member 12. Thus, the second wall stop 44 comes into contact with the blocking member 12 when moving downstream. The second stop means 44 are upstream of the first stop means 43.
    In addition, it goes without saying that the connecting connector 3 could include other abutment means to prevent the withdrawal of the main sleeve from the first pipe. In particular, the stop means could be in a form similar to the locking means which will be presented later.
    With reference to FIG. 4, the sealing member 5 is slidably mounted along the axis W in the inner cavity of the outer sleeve 4. In this example, the sliding clearance is small between the sealing member 5 and the outer sleeve 4, which generates friction. The sliding clearance is configured so as to allow sliding only when the operator makes a voluntary movement by applying a force to the external sleeve 4. In other words, the sealing member 5 cannot move in the external sleeve 4 by gravity alone and / or by vibration. In this example, the sliding clearance during a translation along the X axis is less than 6.5 mm.
    The sealing member 5 is configured to seal the two connection ends ΙΑ, 2B. For this purpose, it has an inside diameter substantially greater than the outside diameter of the longitudinal portions 111, 211 of the end pieces 11, 21 of the pipes 1, 2. Such a dimensioning advantageously makes it possible to avoid a large volume of liquid from stagnating in the sealing member 5, which is particularly advantageous for the transport of drinking water or fuel.
    Referring to Figure 4, the sealing member 5 comprises a cylindrical body 50, extends axially along the axis W and open along the axis W, in which is mounted an upstream seal 51 adapted to cooperate with the connection end IA of the first pipe 1 and a downstream seal 52 adapted to cooperate with the connection end 2B of the second pipe 2. In this example, the seal 51, 52 are integral and form a one-piece sealing element. In this embodiment, each seal 51, 52 is made of elastic material.
    Still with reference to FIG. 4, the locking means are in the form of a locking member 6 which is peripheral and mounted internally to the outer sleeve 4. In this example, the locking member 6 comprises two articulated jaws which are adapted to be opened in the unlocked state and closed in the locked state. The locking member 6 is made of elastic material and is configured to regain its shape from the locked state after deformation.
    More specifically, the locking member 6 is configured to deform radially when it comes into contact with the locking member 22 of the second pipe 2 when the connecting connector 3 is moved downstream. As indicated above, the locking member 22 of the second pipe 2 has a flared wall so as to guide the deformation of the locking member 6. Preferably, the locking member 6 is adapted to deform under the effect of a mechanical force applied by the operator. After contact with the locking member 22 of the second pipe 2, the locking member 6 retracts radially.
    As illustrated in Figure 3, the locking member 6 is mounted at the downstream end of the outer sleeve 4 so as to extend downstream of the locking member 22 of the second pipe 2 in the locked position. Thus, the outer sleeve 4 can no longer move upstream. The downstream end of the outer sleeve 4 has a locking opening 41 allowing the locking member 6 to expand radially. The sealing member 5 is mounted to slide along the axis X in the internal cavity of the external sleeve 4 and is blocked downstream by the locking member 6 and upstream by the first abutment wall 43. It goes without saying that the locking means could have various forms.
    As indicated previously, the locking member 6 being deformable between a locked state and an unlocked state, the connecting connector 3 comprises securing means configured to prevent deformation in the locked state. In other words, in this example, the securing means prevent radial expansion of the locking member 6.
    The securing means are mounted in the locking opening 41. Thus, the operator can manually secure the locking member 6. In this example, the securing means are in the form of a shaped securing member curvilinear blade whose shape is changed between its secure and unsecured state. Thus, an operator can quickly and conveniently determine whether a connection is secure by simple visual observation. It goes without saying that the security means could have various forms.
    To assemble the connection fitting 3 to the first pipe 1, the external sleeve 4 is introduced from downstream to upstream on the tubular body 10 of the first pipe 1 and then the first end piece 11 is fixed, from downstream to upstream, on the tubular body 10, for example, by crimping, welding or gluing. Thus, the outer sleeve 4 can no longer be removed. Then, the sealing member 5 is introduced from downstream to upstream so as to extend radially outside the second longitudinal portion 111 of the first pipe 1 and radially inside the outer sleeve 4. In order to avoid any damage or relative movement in the connection fitting 3 during transport, a plug 8 is preferably introduced at the downstream end so as to extend into the sealing member 5 as illustrated in the figure 11.
    As will be presented below, the connection fitting 3 can be made removable from the first pipe 1.
    It will now be presented a method of connecting a first pipe 1 and a second pipe 2 by means of a connecting connector 3.
    In this example, the pipes 1, 2 have been previously secured to an aircraft structure and are not movable relative to each other.
    With reference to FIG. 5, the connection ends 1 A, 2B of the pipes 1,2 are fixed and spaced from an axial connection set Jx, the connection connector 3 extending over the connection end 1A of the first pipe 1. The outer sleeve 4 is upstream of the connection end IA and the sealing member 5 extends radially outside the second longitudinal portion 111 of the first pipe 1 and radially inside the outer sleeve 4.
    With reference to FIG. 6, the connection method comprises a step of moving El, from upstream to downstream, from the outer sleeve 4 of the connection fitting 3 to the locking member 22 of the second pipe 2 so as to move the sealing member 5 between the two connection ends ΙΑ, 2B in order to seal between the two pipes 1,2.
    In this example, the operator moves the outer sleeve 4 from upstream to downstream with one hand so that the first abutment wall 43 avoids the abutment member 12 of the first pipe 1 and comes into abutment with the the sealing member 5 in order to move it downstream towards the second pipe 2. As the displacement progresses, the sealing member 5 reaches the second longitudinal portion 211 of the second pipe 2 as illustrated in the Figure 7. The seals 51,52 cooperate respectively with the second longitudinal portions 111, 211 of the pipes 1,2, which ensures a tight connection.
    Referring to Figure 7, the connection method comprises a step E2 of locking the outer sleeve 4 on the second pipe 2. During the downstream movement of the outer sleeve 4, the locking member 6 comes into contact with the member blocking 22 of the second pipe 2 and expands radially due to the flared shape of the blocking member 22. The operator must exert mechanical stress to deform the locking member 6 but this remains reasonable. As the displacement progresses, the locking member 6 crosses the locking member 22 of the second pipe 2 and then retracts once located downstream as illustrated in FIG. 7. As a result, the outer sleeve 4 does not can no longer move downstream without the operator exerting a force on the outer sleeve.
    Preferably, the downstream travel of the outer sleeve 4 is limited by the second abutment wall 44 which abuts with the blocking member 12 of the first pipe 1 as illustrated in FIG. 7. By way of example, the upstream stroke downstream of the outer sleeve 4 is shown schematically in Figure 10. Advantageously, the axial stroke of the outer sleeve 4 on the connection end IA is reduced. Also, in this example, the connection end IA must only comprise a straight portion of length greater than 6 cm before it can be bent.
    Referring to Figure 8, the connection method comprises a step E3 of securing the locking of the outer sleeve 4 on the second pipe 2 so as to prevent any involuntary unlocking. In this example, the operator presses on the securing member 7 which moves in the locking opening 41 of the connection fitting 3 in order to prevent any radial expansion of the locking member 6. The outer sleeve 4 does not cannot then be removed unintentionally. Preferably, the operator must use a tool to remove the safety device and remove the outer sleeve 4. As indicated above, a secure connection can be identified by simple visual observation, which facilitates inspection operations. For example, Figure 9 shows an unsecured connection.
    Thanks to the invention, two pipes 1, 2 can be connected physically and fluidically by an operator without risk of error and in a practical manner. In addition, from a maintenance point of view, the sealing member 5 can be removed in a practical manner from the outer sleeve 4 when the pipes 1, 2 are secured to the structure of an aircraft. Thus, in the event of wear, the sealing member 5 can be easily replaced without requiring a removal operation of the fluid circuit.
    Alternatively and with reference to FIG. 12 showing another form of a connection fitting, by way of second abutment means, in place of the second abutment wall 44, the connection fitting could comprise means of upstream locking 6 ′ as presented above in order to allow the outer sleeve 4 to be withdrawn from the first pipe 1 after the said first pipe 1 has been joined to the structure of the aircraft. In other words, it suffices to unlock the upstream locking means 6 ’to allow withdrawal of the outer sleeve 4 by the downstream. Such a connecting fitting 3 can be replaced quickly and conveniently.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. Fluid circuit, in particular for aircraft, comprising a first pipe (1), a second pipe (2) and a connection fitting (3),
    - each pipe (1,2) comprising a connection end (IA, 2B), extending along an axis X and defining an interior surface and an exterior surface, which comprises a locking member (12, 22) extending projecting radially with respect to said axis X from the outer surface, the connection ends (ΙΑ, 2B) of the pipes (1,2) being fixed and spaced from an axial connection clearance (Jx),
    - the connection fitting (3) comprising:
    i. an outer sleeve (4) which extends along the X axis and is slidably mounted along the X axis at the connection end (IA) of the first pipe (1), the outer sleeve (4) being configured to connect the two connection ends (ΙΑ, 2B) when moving from upstream to downstream, ii. a sealing member (5) which extends along the X axis and is slidably mounted along the X axis in said outer sleeve (4), the sealing member (5) being configured to seally connect the two connection ends (1 A, 2B), iii. locking means (6) configured to cooperate with the blocking member (22) of the second pipe (2) to block the translation of said outer sleeve (4) upstream towards the first pipe (1),
    - the connector (3) being configured to move the sealing member (5) between the two connection ends (1 A, 2B) to ensure sealing when the outer sleeve (4) is moved downstream until 'to the blocking member (22) of the second pipe (2).
    [2" id="c-fr-0002]
    2. Fluid circuit according to claim 1, in which the outer sleeve (4) comprises first stop means (43) configured to cooperate with the sealing member (5) in order to move it concomitantly with the movement of the outer sleeve. (4).
    [3" id="c-fr-0003]
    3. Fluid circuit according to claim 2, wherein the first stop means (43) extend radially outside the blocking member (12) of the first pipe (1) relative to the axis X .
    [4" id="c-fr-0004]
    4. Fluid circuit according to one of claims 1 to 3, wherein the outer sleeve (4) comprises second stop means (44) configured to cooperate with the locking member (12) of the first pipe (1 ) to prevent removal of the outer sleeve (4) from the first pipe (1).
    [5" id="c-fr-0005]
    5. Fluid circuit according to one of claims 1 to 4, in which the outer sleeve (4) comprising an upstream end intended to extend on the side of the first pipe (1) in the locked position and a downstream end intended to extend from the side of the second pipe (2) in the locked position, the locking means (6) are mounted at the downstream end of the outer sleeve (4).
    [6" id="c-fr-0006]
    6. Fluid circuit according to one of claims 1 to 5, in which, the locking means being deformable between its locked and unlocked state, the connection fitting (3) comprises securing means configured to prevent deformation of the means lock in the locked state.
    [7" id="c-fr-0007]
    7. fluid circuit according to one of claims 1 to 6, wherein the sealing member (51) comprises at least one upstream seal (51) adapted to cooperate with the connection end (1 A ) of the first pipe (1) and at least one downstream seal (52) able to cooperate with the connection end (2B) of the second pipe (2).
    [8" id="c-fr-0008]
    8. Aircraft comprising a fluid circuit according to one of claims 1 to 7, in which the first pipe (1) and the second pipe (2) are secured to a structure of the aircraft, the connection ends (ΙΑ, 2B) pipes (1,2) being fixed and spaced from an axial connection clearance (Jx).
    [9" id="c-fr-0009]
    9. Method of connecting a first pipe (1) and a second pipe (2) by means of a connection fitting (3) of a fluid circuit according to one of claims 1 to 7, the connection ends (ΙΑ, 2B) of the pipes (1, 2) being fixed and spaced from an axial connection clearance (Jx),
    5 the connection fitting (3) extending over the connection end (IA) of the first pipe (1), the method comprises:
    - A step of moving upstream and downstream of the outer sleeve (4) of the connecting fitting (3) to the locking member (22) of the second pipe (2) so as to move the sealing member
    [10" id="c-fr-0010]
    10 (5) between the two connection ends (ΙΑ, 2B) to seal between the two pipes (1,2) and
    - A step of locking the outer sleeve (4) on the second pipe (2).
    [11" id="c-fr-0011]
    15 10. Connection method according to the preceding claim, comprising a step of securing the locking of the outer sleeve (4) on the second pipe (2) so as to prevent any involuntary unlocking.
    1/6
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    EP2451709A1|2012-05-16|Device for closing fuel-dump circuit of an aircraft
    WO2021083719A1|2021-05-06|Fluid circuit, in particular for an aircraft, comprising a first pipe, a second pipe and a coupling
    FR3070136B1|2019-11-08|TOOLING ASSEMBLY OF TWO CONDUITS
    FR3082587A1|2019-12-20|FLUID CIRCUIT, ESPECIALLY FOR AN AIRCRAFT, COMPRISING A FIRST PIPING, A SECOND PIPING AND A CONNECTION CONNECTION
    EP1450094B1|2009-09-30|Connection arrangement for cylindrical pipes
    FR2769350A1|1999-04-09|Process for joining flexible hose to tubular connector
    同族专利:
    公开号 | 公开日
    BR112019012813A2|2019-11-26|
    EP3356718A1|2018-08-08|
    WO2018114342A1|2018-06-28|
    ES2718080T3|2019-06-27|
    US20190316717A1|2019-10-17|
    FR3060702B1|2019-01-25|
    CA3041665A1|2018-06-28|
    EP3356718B1|2019-01-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3495853A|1967-06-06|1970-02-17|Eduard Furrer|Joint for high-pressure pipelines or the like|
    EP0616161A1|1993-03-19|1994-09-21|Legris S.A.|Hooking quick coupling|
    US20040239117A1|2003-05-28|2004-12-02|Gill Ajit Singh|Coupling for pipe including an inclined flange|
    DE202008001778U1|2008-02-08|2008-04-03|Rectus Gmbh|Pipe connection coupling|
    FR2933474A1|2008-07-03|2010-01-08|Legris Sa|Connection units for end portions of fluid transporting conduits, have deformable ring sandwiched between external projection and adjacent internal shoulder, and blocking section including internal surface to block expansion of ring|
    US2653042A|1950-01-30|1953-09-22|Northrop Aircraft Inc|Demountable duct seal|
    US5000491A|1989-08-02|1991-03-19|Proprietary Technology, Inc.|Means for hose clamp replacement|
    US7144047B2|2003-12-10|2006-12-05|Victaulic Company|Flexible pipe coupling|
    US9599262B1|2016-12-06|2017-03-21|Robin C. Moore|Sleeve tool and method of use|IT201600081363A1|2016-08-02|2018-02-02|Saipem Spa|SYSTEM AND METHOD OF CONNECTION TO CONNECT TWO DUCTS IN A WATER BODY|
    FR3104229A1|2019-12-06|2021-06-11|Stelia Aerospace|Fluid circuit including a connecting fitting for pipelines|
    FR3104228B1|2019-12-06|2021-11-05|Stelia Aerospace|Fluid circuit comprising a connecting fitting for pipelines comprising a guide member for a heater duct|
    法律状态:
    2017-12-21| PLFP| Fee payment|Year of fee payment: 2 |
    2018-06-22| PLSC| Publication of the preliminary search report|Effective date: 20180622 |
    2019-12-19| PLFP| Fee payment|Year of fee payment: 4 |
    2020-12-23| PLFP| Fee payment|Year of fee payment: 5 |
    2021-12-24| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1662701A|FR3060702B1|2016-12-19|2016-12-19|FLUID CIRCUIT COMPRISING A FIRST CHANNEL, A SECOND CHANNEL AND A CONNECTION CONNECTION AND CONNECTION METHOD|
    FR1662701|2016-12-19|FR1662701A| FR3060702B1|2016-12-19|2016-12-19|FLUID CIRCUIT COMPRISING A FIRST CHANNEL, A SECOND CHANNEL AND A CONNECTION CONNECTION AND CONNECTION METHOD|
    CA3041665A| CA3041665A1|2016-12-19|2017-12-06|Fluid circuit comprising a first pipe, a second pipe and a coupling, and coupling method|
    EP17811554.9A| EP3356718B1|2016-12-19|2017-12-06|Fluid circuit and process to realise such circuit|
    US16/469,884| US20190316717A1|2016-12-19|2017-12-06|Fluid circuit comprising a first pipe, a second pipe and a coupling, and coupling method|
    PCT/EP2017/081732| WO2018114342A1|2016-12-19|2017-12-06|Fluid circuit comprising a first pipe, a second pipe and a coupling, and coupling method|
    BR112019012813A| BR112019012813A2|2016-12-19|2017-12-06|fluid circuit comprising a first tube, a second tube and a coupling and coupling method|
    ES17811554T| ES2718080T3|2016-12-19|2017-12-06|Fluid circuit and procedure for realization of such circuit|
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