Joint device, pipeline connecting assembly, pressure retaining valve and vehicle

Abstract

The invention relates to a connector device, a pipeline connecting assembly, a pressure retaining valve and a vehicle. The connector device is provided with an insertion channel and a connector body, wherein the insertion channel is configured to provide a space needed by forward insertion of the catheter in the insertion direction; a connection structure configured to connect the joint device to the base; and the retaining structure is configured to provide an acting force for preventing the conduit from moving reversely along the insertion direction. The pipeline connecting structure has the beneficial effect that an efficient pipeline connecting mode is provided by improving the inserting channel and the retaining structure.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection, and in particular to a joint device, a pipeline connection assembly, a pressure-maintaining valve and a vehicle. Background Art

[0002] In systems such as hydraulic systems or pneumatic systems that use media such as hydraulic oil to transmit force, conduits are often required to connect different pressure sources, valves, and pumps.

[0003] For example, the pressure-maintaining valve in a vehicle's shock-absorbing system maintains pressure. When the pressure changes, the valve needs to introduce or discharge the medium as needed.

[0004] In related technologies, in order to achieve the purpose of forming a pipeline through a catheter, an interface is often set at the pressure source, valve and pump, and then one end of the catheter is connected to the interface through a joint device, and the catheter and the interface are docked to form a channel for transmitting the medium.

[0005] However, the current connector device first fixes the end of the catheter to the connector device, and then installs the connector device to the corresponding position, which often leads to the problem of low catheter installation efficiency. Summary of the Invention

[0006] The embodiments of the present application provide a connector device, a pipe connection assembly, a pressure-maintaining valve, and a vehicle, which improve the convenience of catheter installation and at least partially solve the above-mentioned technical problems.

[0007] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a connector device is provided, comprising: an insertion channel, configured to provide the space required for the catheter to be inserted forwardly along the insertion direction; a connecting structure, configured to connect the connector device to the base; and a stop structure, configured to provide a force to prevent the catheter from moving in the opposite direction along the insertion direction.

[0008] Optionally, in some embodiments of the present application, the connector device includes: a connecting member, configured to form the connecting structure; a retaining member, configured to form the retaining structure; the retaining member is movably assembled to the connecting member so that the retaining member is at least partially located between the base and the connecting member in the insertion direction.

[0009] Optionally, in some embodiments of the present application, the connecting member is formed with: a connecting through-hole, configured to constitute at least a part of the insertion channel; the retaining member is formed with: a retaining through-hole, configured to constitute at least a part of the insertion channel; the retaining through-hole is arranged corresponding to the connecting through-hole.

[0010] Optionally, in some embodiments of the present application, the connecting member is formed with: a limiting groove configured to accommodate at least a portion of the retaining member; the limiting groove is arranged at the end of the connecting member; the connecting through hole extends from the other end of the connecting member along the insertion direction to the limiting groove, so that the insertion channel passes through the connecting member.

[0011] Optionally, in some embodiments of the present application, the limiting groove has a limiting inclined surface that obliquely intersects with the insertion direction; the outer periphery of the retaining member has a retaining inclined surface that is adapted to the limiting inclined surface.

[0012] Optionally, in some embodiments of the present application, the limiting groove has a limiting end surface that intersects perpendicularly with the insertion direction; the end of the retaining member has a retaining end surface that is parallel to the limiting end surface.

[0013] Optionally, in some embodiments of the present application, the limiting inclined surface constitutes a groove wall of the limiting groove, and the limiting end surface constitutes a groove bottom of the limiting groove.

[0014] Optionally, in some embodiments of the present application, the anti-retreat structure is provided on the hole wall of the anti-retreat through hole.

[0015] Optionally, in some embodiments of the present application, the anti-retreat structure is constructed as an anti-retreat protrusion protruding from the hole wall of the anti-retreat through hole.

[0016] Optionally, in some embodiments of the present application, the back-stop protrusion is constructed as a surrounding structure surrounding the back-stop through hole.

[0017] Optionally, in some embodiments of the present application, the cross-sectional profile of the retaining protrusion includes a retaining edge extending at least in a direction different from the insertion direction; in the insertion direction, the retaining edge is arranged on a side of the retaining protrusion away from the connecting structure.

[0018] Optionally, in some embodiments of the present application, the cross-sectional profile of the retaining protrusion further includes a guide edge extending at least in a direction obliquely intersecting with the insertion direction; in the insertion direction, the guide edge is arranged on a side of the retaining protrusion close to the connecting structure.

[0019] Optionally, in some embodiments of the present application, the connector includes: a connecting portion, adapted to be at least partially embedded in the base so that the connector and the base form a fixed connection; and an inserting portion, adapted to be at least partially exposed to the outside of the base when the connector and the base form a fixed connection.

[0020] Optionally, in some embodiments of the present application, the connection structure is provided at the connection portion, and one end of the insertion channel is provided at the insertion portion.

[0021] Optionally, in some embodiments of the present application, the connection structure is constructed as an external thread provided on the outside of the connection portion.

[0022] Optionally, in some embodiments of the present application, the connector device is further formed with: a channel sealing structure configured to seal the area of ​​the insertion channel located around the catheter.

[0023] Optionally, in some embodiments of the present application, the joint device includes: a channel sealing member configured to form the channel sealing structure.

[0024] Optionally, in some embodiments of the present application, the connector device has a plurality of channel sealing members distributed at different positions in the insertion direction.

[0025] Optionally, in some embodiments of the present application, the plurality of channel sealing members distributed at different positions in the insertion direction are constructed as a plurality of different sealing rings.

[0026] Optionally, in some embodiments of the present application, the connector device further includes: a connecting member configured to form the connecting structure; a retaining member configured to form the retaining structure; the retaining member movably assembled to the connecting member; and the channel sealing member fixedly assembled to the connecting member.

[0027] Optionally, in some embodiments of the present application, the connecting member is formed with: a connecting through hole, configured to constitute at least a portion of the insertion channel; a sealing groove, formed at the hole wall of the connecting through hole and surrounding the connecting through hole; the sealing member is constructed as a sealing ring suitable for being embedded in the sealing groove.

[0028] Optionally, in some embodiments of the present application, the connector has a plurality of sealing grooves distributed at different positions in the insertion direction.

[0029] Optionally, in some embodiments of the present application, the joint device is further formed with: a connection sealing structure configured to seal the area between the joint device and the base.

[0030] Optionally, in some embodiments of the present application, the joint device includes: a connector configured to form the connection structure; a connection seal configured to form the connection sealing structure; and the connection seal fixedly assembled to the connector.

[0031] Optionally, in some embodiments of the present application, in the insertion direction, the connection sealing structure is arranged between the retaining structure and the channel sealing structure.

[0032] According to a second aspect of the present application, the present application further provides a pipeline connection assembly, which includes: a conduit, a base having a medium channel, and the above-mentioned joint device.

[0033] Optionally, in some embodiments of the present application, the base is formed with a stop structure at the end of the medium channel, configured to stop the end of the catheter from being inserted into the connector device at a preset position.

[0034] Optionally, in some embodiments of the present application, in the insertion direction, the retaining structure is at least partially disposed between the stopping structure and the connecting structure.

[0035] Optionally, in some embodiments of the present application, the stop structure is constructed as a stop slope that obliquely intersects with the insertion direction and contracts in a positive direction along the insertion direction.

[0036] According to the third aspect of the present application, the present application also provides a pressure-maintaining valve suitable for maintaining the pressure in the shock-absorbing system of a vehicle; the pressure-maintaining valve comprises: the above-mentioned joint device or the above-mentioned pipeline connection assembly

[0037] According to a fourth aspect of the present application, the present application also provides a vehicle, comprising: the above-mentioned joint device, the above-mentioned pipeline connection assembly or the above-mentioned pressure maintaining valve.

[0038] The beneficial effect of the present application is that a more efficient pipeline connection method is provided by improving the insertion channel and the anti-retraction structure.

[0039] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0041] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0042] Figure 1 is a schematic structural diagram of the connector device provided in an exemplary embodiment of the present application after assembly;

[0043] Figure 2 yes Figure 1 A schematic cross-sectional view of the connector device shown;

[0044] Figure 3 yes Figure 1 The structural diagram of the stop-retraction part in the connector device shown;

[0045] Figure 4 yes Figure 3 A schematic cross-sectional view of the retaining member shown;

[0046] Figure 5 yes Figure 3 The local enlarged schematic diagram shown;

[0047] Figure 6 yes Figure 3 A schematic diagram of another partial embodiment is shown;

[0048] Figure 7 is a schematic structural diagram of a base provided in an exemplary embodiment of the present application;

[0049] Figure 8 yes Figure 7 a cross-sectional view of the base shown;

[0050] Figure 9 is a schematic structural diagram of a pipe connection assembly provided in an exemplary embodiment of the present application after assembly;

[0051] Figure 10 yes Figure 9 The cross-sectional structural diagram of the pipe connection assembly shown;

[0052] Figure 11 is a schematic structural diagram of a pressure-maintaining valve provided in an exemplary embodiment of the present application in a state where a catheter is not inserted;

[0053] Figure 12 yes Figure 11 Schematic diagram of the cross-sectional structure of the pressure-maintaining valve shown;

[0054] Figure 13 2. It is a schematic structural diagram of a pressure-maintaining valve provided in an exemplary embodiment of the present application in the middle of a catheter insertion;

[0055] Figure 14 yes Figure 13 Schematic diagram of the cross-sectional structure of the pressure-maintaining valve shown;

[0056] Figure 15 2. It is a schematic structural diagram of a pressure-maintaining valve provided in an exemplary embodiment of the present application, inserted into a catheter;

[0057] Figure 16 yes Figure 15 Schematic diagram of the cross-sectional structure of the pressure-maintaining valve shown;

[0058] Figure 17 2 is a schematic structural diagram of a vehicle provided in an exemplary embodiment of the present application.

[0059] Description of reference numerals:

[0060] 1. Vehicle;

[0061] 2. Pressure maintaining valve;

[0062] 10. Pipe connection components;

[0063] 11. Catheter;

[0064] 12. Base;

[0065] 12a, medium channel;

[0066] 12b, stop structure;

[0067] 12c. Stop slope;

[0068] 100. Connector device;

[0069] 100a, insertion channel;

[0070] 100b, connection structure;

[0071] 100c, anti-retraction structure;

[0072] 100d, channel sealing structure;

[0073] 100e, connection sealing structure;

[0074] 110. Connectors;

[0075] 110a, connecting through hole;

[0076] 110b, limiting groove;

[0077] 110c, limiting inclined plane;

[0078] 110d, limit end face;

[0079] 110e, sealing groove;

[0080] 111, connecting part;

[0081] 112. Insertion department;

[0082] 120. Anti-return parts;

[0083] 120a, anti-retraction through hole;

[0084] 120b, stop slope;

[0085] 120c, stop end face;

[0086] 120e, notch;

[0087] 121, stop protrusion;

[0088] 121a, stop retreat edge;

[0089] 121b, leading edge;

[0090] 121c, transition edge;

[0091] 130, channel seals;

[0092] 140, connecting seals;

[0093] D. Insertion direction. DETAILED DESCRIPTION

[0094] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0095] Reference Figures 1 to 2 shown. Figure 1 A schematic structural diagram of the connector device 100 provided in an exemplary embodiment of the present application after assembly; Figure 2 yes Figure 1 The cross-sectional structural diagram of the connector device 100 is shown.

[0096] In this embodiment, the connector device 100 of the present application mainly includes: a connecting member 110 and a retaining member 120 .

[0097] In certain embodiments, the connecting member 110 and the retaining member 120 of the connector device 100 of the present application may be formed simultaneously by a single integral component, that is, the connecting member 110 and the retaining member 120 may be integrally formed.

[0098] In some embodiments, the connector 110 and the retaining member 120 of the connector device 100 of the present application can be fixedly connected by welding or the like, so that the connector 110 and the retaining member 120 constitute an integral component, that is, the connector 110 and the retaining member 120 can be manufactured separately and then fixedly connected to form an integral component.

[0099] Reference Figure 9 and Figure 10 shown. Figure 91 is a schematic structural diagram of the pipe connection assembly 10 provided in an exemplary embodiment of the present application after assembly; Figure 10 yes Figure 9 The cross-sectional structural diagram of the pipe connection assembly 10 is shown.

[0100] The connector device 100 of the present application is suitable for attaching the end of a conduit 11 to a base 12 having a media passage 12a. Specifically, when establishing a pipeline connection, the connector device 100 of the present application can secure one end of the conduit 11 to the media passage 12a of a pressure source, valve, pump, or the like. In this application, the base 12 generally refers to the physical portion of such a pressure source, valve, pump, or the like that forms the media passage 12a. Of course, the base can also be a component in a piping system, such as a tee joint, that is solely used to guide the media.

[0101] Reference Figures 1 to 6 shown. Figure 2 yes Figure 1 The cross-sectional structural diagram of the connector device 100 is shown; Figure 3 yes Figure 1 The structure diagram of the stop-retraction member 120 of the connector device 100 shown; Figure 4 yes Figure 3 The cross-sectional structural diagram of the retaining member 120 is shown; Figure 5 yes Figure 3 The local enlarged schematic diagram shown; Figure 6 yes Figure 3 A schematic diagram of another partial embodiment is shown.

[0102] The connector device 100 of the present application is formed with: an insertion channel 100a, a connection structure 100b, and a retaining structure 100c.

[0103] Specifically, the insertion channel 100a is configured to provide the space required for the forward insertion of the conduit 11 along the insertion direction D; the connection structure 100b is configured to connect the connector device 100 to the base 12; and the retaining structure 100c is configured to provide a force that prevents the conduit 11 from moving in the reverse direction D. The insertion channel 100a is primarily designed to provide a passageway for the conduit 11 to be inserted into a predetermined position along a predetermined direction (insertion direction D) after the connector device 100 is connected to the base 12, thereby enabling the conduit 11 to communicate with the media channel 12a of the base 12. The function of the connection structure 100b is to establish a connection (generally a fixed connection) between the connector device 100 and the base 12. The function of the anti-retraction structure 100c is to enable the catheter 11 to be inserted in the forward direction of insertion D, and when the catheter 11 is pulled out in the reverse direction of the insertion direction D, the anti-retraction structure 100c prevents the catheter 11 from moving in the reverse direction of the insertion direction D. That is, it can be understood that due to the existence of the anti-retraction structure 100c, the resistance encountered when the catheter 11 is inserted in the forward direction of insertion D is smaller than the resistance encountered when the catheter 11 is withdrawn in the reverse direction of the insertion direction D.

[0104] By adopting the above solution, when connecting the pipelines, the connector device 100 can be installed on the base 12 first; then the end of the conduit 11 can be inserted into the connector device 100 to a preset position, thereby achieving the purpose of docking the conduit 11 with the medium channel 12a of the base 12.

[0105] Compared to the conventional method of first connecting the end of the conduit 11 to the connector 100 and then installing both to the base 12, this method avoids the inefficiency caused by the need to repeatedly adjust the length of the conduit 11 and repeatedly disassemble the conduit 11 and the connector 100 when the length of the conduit 11 does not fit the installation position. This method allows the approximate length of the conduit 11 to be estimated using the already safely installed connector 100, and then the conduit 11 can be directly inserted to complete the pipe connection. This undoubtedly greatly improves work efficiency and avoids the loss caused by cutting the conduit 11.

[0106] Reference Figures 1 to 6 As shown, in some embodiments of the present application, the connector 110 is constructed to form a connecting structure 100b; the retaining member 120 is constructed to form a retaining structure 100c; the retaining member 120 is movably assembled to the connector 110 so that the retaining member 120 is at least partially located between the base 12 and the connector 110 in the insertion direction D.

[0107] In this way, the catheter 11 can be affected by the anti-retraction structure 100c only after it is inserted to a certain depth, and the short-distance movement of the anti-retraction member 120 during insertion facilitates the insertion and alignment of the catheter 11; and the short-distance movement of the anti-retraction member 120 together with the catheter 11 after the insertion is completed can make the position of the end of the catheter 11 appropriately fine-tuned, so that the user has a certain amount of clearance when inserting the catheter 11, further improving the insertion efficiency.

[0108] Reference Figure 1 、 Figure 2 and Figure 4As shown. As a specific embodiment, the connecting member 110 is provided with a connecting through-hole 110a; the retaining member 120 is provided with a retaining through-hole 120a; the connecting through-hole 110a is configured to constitute at least a portion of the insertion passage 100a; and the retaining through-hole 120a is configured to constitute at least a portion of the insertion passage 100a; that is, the aligned connecting through-hole 110a and the retaining through-hole 120a constitute the insertion passage 100a. In this way, the catheter 11 needs to pass through the connecting through hole 110a and the anti-retraction through hole 120a in sequence to achieve insertion, which divides the insertion channel 100a into two sections, making it easier for the catheter 11 to move forward in the connecting through hole 110a along the insertion direction D (the aperture of the connecting through hole 110a is larger); and the catheter 11 needs to overcome a certain resistance when moving forward in the insertion direction D in the anti-retraction through hole 120a (the aperture of the connecting through hole 110a is smaller), which is beneficial to preventing the catheter 11 from moving in the opposite direction of the insertion direction D after the insertion of the catheter 11 is completed; although the anti-retraction through hole 120a provides a certain resistance to forward insertion, since the anti-retraction part 120 can produce a certain displacement in the insertion direction D, the relative displacement between the catheter 11 and the anti-retraction part 120 can help the user better overcome the friction caused by the hole wall of the anti-retraction through hole 120a during insertion.

[0109] Reference Figures 2 to 6 As shown. Specifically, the connector 110 is formed with a limiting groove 110b configured to accommodate at least a portion of the retaining member 120. The limiting groove 110b is located at an end of the connector 110. A connecting through-hole 110a extends from the other end of the connector 110 along the insertion direction D to the limiting groove 110b, allowing the insertion channel 100a to penetrate the connector 110. The limiting groove 110b not only provides installation space for the retaining member 120 but also limits its movement, preventing it from moving or flipping.

[0110] As a more specific solution, the limiting groove 110b has a limiting inclined surface 110c obliquely intersecting with the insertion direction D; the outer periphery of the retaining member 120 has a retaining inclined surface 120b adapted to the limiting inclined surface 110c.

[0111] Reference Figure 13 and Figure 14 shown. Figure 13 2 is a schematic structural diagram of the pressure-maintaining valve 2 provided in an exemplary embodiment of the present application, which is inserted midway into the conduit 11; Figure 14 yes Figure 13 The cross-sectional structural diagram of the pressure maintaining valve 2 is shown.

[0112] By adopting the above scheme, when the catheter 11 is inserted in the positive direction of the insertion direction D, the end of the catheter 11 contacts the retaining member 120 (the inner wall of the retaining hole 120a) and drives the retaining member 120 to move away from the connecting member 110. At this time, the end of the retaining member 120 close to the base 12 contacts the base 12, so that the retaining member 120 can no longer move. At this time, the catheter 11 continues to be inserted, and the catheter 11 overcomes the resistance brought by the retaining hole 120a and moves relative to the retaining member 120 (at the same time, the retaining member 120 undergoes a certain deformation, so that the retaining member 120 hole expands, thereby reducing the resistance encountered by the catheter 11 during insertion). Then, after the catheter 11 is inserted into place, if the catheter 11 is subjected to a force that causes it to move in the opposite direction of the insertion direction D, the catheter 11 Due to the action of the anti-recognition structure 100c, the anti-recognition member 120 will move together in the direction close to the connecting member 110. When it moves to the point where the anti-recognition slope 120b contacts the limiting slope 110c, since the anti-recognition slope 120b and the limiting slope 110c are both inclined and intersected with the insertion direction D (the intersection angles of the anti-recognition slope 120b and the limiting slope 110c with the insertion direction D can be the same or different), the anti-recognition member 120 cannot move further at this time. At the same time, due to the force component perpendicular to the insertion direction D provided by the limiting slope 110c, the anti-recognition member 120 cannot deform freely, thereby limiting the expansion of the anti-recognition through hole 120a, making the anti-recognition through hole 120a unable to expand, so that the anti-recognition structure 100c tightens the conduit 11 so that it cannot further move in the opposite direction of the insertion direction D.

[0113] Reference Figure 3 As shown. As an optional solution, the retaining member 120 is constructed as an annular member having a notch 120e, and the retaining hole 120a is arranged at the center of the annular member. In addition, the retaining member 120 can be made of a material with a certain degree of elasticity. In this case, the retaining member 120 is equivalent to a "C"-shaped ring. When the catheter 11 is inserted in the insertion direction D, the retaining member 120 expands, thereby deforming the retaining hole 120a to expand the aperture, thereby making it easier to insert the catheter 11. When the catheter 11 is withdrawn in the reverse direction D, the deformation of the retaining member 120 is limited due to the action of the limiting groove 110b of the connecting member 110. The retaining hole 120a cannot expand in diameter as when the catheter 11 is inserted, so that the retaining structure 100c still clamps the catheter 11 to prevent it from withdrawing from the connector device 100.

[0114] Reference Figures 2 to 6As shown in the figure, as a specific embodiment, the limiting groove 110b has a limiting end surface 110d that intersects perpendicularly with the insertion direction D; the end of the retaining member 120 has a retaining end surface 120c that is parallel to the limiting end surface 110d. It should be noted that the retaining member 120 has two ends. In this embodiment, the retaining end surface 120c specifically refers to the end surface formed by the end of the retaining member 120 close to the limiting end surface 110d. Of course, in other embodiments, both ends of the retaining member 120 can be formed on the retaining end surface 120c parallel to the limiting end surface 110d.

[0115] As a specific solution, the limiting slope 110c forms the groove wall of the limiting groove 110b, and the limiting end surface 110d forms the groove bottom of the limiting groove 110b. This makes it easier for the conduit 11 to connect to the stop hole 120a after passing through the connecting hole 110a.

[0116] As a more specific solution, a larger chamfer can be set at one end of the anti-retraction through hole 120a close to the connecting piece 110, that is, the anti-retraction end surface 120c, so that the catheter 11 passing through the connecting through hole 110a can be easily docked into the anti-retraction through hole 120a.

[0117] As an optional solution, when the anti-retreat bevel 120b contacts the limiting bevel 110c, the anti-retreat end face 120c and the limiting end face 110d are still at a preset distance. The advantage of this is that the side of the anti-retreat through hole 120a close to the limiting end face 110d can have a larger aperture (with a larger chamfer), so that the end of the catheter 11 can be effectively connected to the anti-retreat through hole 120a after passing through the connecting through hole 110a.

[0118] Reference Figures 2 to 6 As shown, as a specific solution, the anti-retreat structure 100c in the present application is arranged on the hole wall of the anti-retreat through hole 120a; and, the anti-retreat structure 100c is constructed as a anti-retreat protrusion 121 protruding from the hole wall of the anti-retreat through hole 120a, that is, the anti-retreat structure 100c further shrinks the aperture of the anti-retreat through hole 120a relative to the other hole walls of the anti-retreat through hole 120a.

[0119] More specifically, the stop protrusion 121 is constructed as a surrounding structure surrounding the stop hole 120a, that is, the stop protrusion 121 extends circumferentially of the stop hole 120a; in this way, when the catheter 11 is inserted, the stop protrusion 121 can surround the catheter 11 and contact the catheter 11 to achieve a stop effect.

[0120] Reference Figure 5As shown, as a specific solution, the cross-sectional profile of the retaining protrusion 121 includes a retaining edge 121a extending at least in a direction different from the insertion direction D; in the insertion direction D, the retaining edge 121a is arranged on the side of the retaining protrusion 121 away from the connecting structure 100b.

[0121] In this way, the stop edge 121 a can generate a reaction force that interferes with the insertion direction D, thereby playing a stop effect.

[0122] As a further specific solution, the cross-sectional profile of the retaining protrusion 121 also includes a guide edge 121b extending at least in a direction obliquely intersecting the insertion direction D; in the insertion direction D, the guide edge 121b is arranged on the side of the retaining protrusion 121 close to the connecting structure 100b.

[0123] In this way, the guiding edge 121 b intersects obliquely with the insertion direction D, so that the catheter 11 can smoothly pass through the retaining protrusion 121 during insertion.

[0124] Reference Figure 5 As shown, the stop edge 121a is constructed as a straight edge perpendicular to the insertion direction D; the guide edge 121b is constructed as a smooth curve or a combination of multiple smooth curves, such as an arc edge or a combination of arc edges.

[0125] As an optional solution, the cross-sectional profile of the retaining protrusion 121 further includes a transition edge 121 c , which is disposed between the retaining edge 121 a and the guiding edge 121 b . The transition edge 121 c may be a straight edge parallel to the insertion direction D.

[0126] Reference Figure 4 As shown, a plurality of stop protrusions 121 may be provided in the insertion direction D, and the stop protrusion 121 closest to the connector 110 may not be provided with a guide edge 121b (only including a stop edge 121a and a transition edge 121c), but directly transitions from the chamfered edge of the end of the stop through hole 120a close to the connector 110 to the transition edge 121c of the stop protrusion 121.

[0127] Reference Figure 6 As shown, as an optional solution, the stop edge 121a of the stop protrusion 121 is obliquely intersected with the insertion direction D and is inclined in the direction away from the connector 110. In this way, the stop edge 121a and the transition edge 121c form a wedge-shaped structure, thereby further improving the stop effect of the stop protrusion 121.

[0128] Reference Figure 1 and Figure 2As shown in the figure, as a specific embodiment, the connector 110 includes a connecting portion 111 and an inserting portion 112. The connecting portion 111 is adapted to be at least partially embedded in the base 12 so that the connector 110 and the base 12 are fixedly connected. The inserting portion 112 is adapted to be at least partially exposed outside the base 12 when the connector 110 and the base 12 are fixedly connected.

[0129] In this way, the connecting portion 111 is mainly used to achieve a fixed connection between the connecting member 110 and the base 12 , and the inserting portion 112 is mainly used to be exposed outside the base 12 to provide an inserting interface for the catheter 11 .

[0130] As a more specific solution, the connecting structure 100b is arranged on the connecting part 111, and one end of the insertion channel 100a is arranged on the insertion part 112; the connecting structure 100b is constructed as an external thread arranged on the outside of the connecting part 111, that is, the connecting member 110 and the base 12 are fixedly connected by a threaded connection (the base 12 is provided with a corresponding internal thread).

[0131] Reference Figure 2 As shown, as a specific solution, the connector device 100 is further formed with: a channel sealing structure 100 d ; the channel sealing structure 100 d is configured to seal the area of ​​the insertion channel 100 a located around the conduit 11 .

[0132] As a more specific embodiment, the channel seal 130 is configured to form a channel sealing structure 100d. The connector device 100 includes multiple channel seals 130 distributed at different positions along the insertion direction D. The multiple channel seals 130 distributed at different positions along the insertion direction D are configured as multiple different sealing rings. The different sealing rings here refer to the different cross-sectional sizes of the sealing rings. Since the diameter of the conduit 11 is uniform, the inner diameters of the sealing rings constituting the channel seal 130 are all the same. Seal rings of different sizes can provide different contact effects, thereby preventing simultaneous failure of the sealing rings.

[0133] In this way, after the catheter 11 is installed, the area around the catheter 11 can be effectively sealed, and no medium leaks along the catheter 11.

[0134] Specifically, channel seal 130 is fixedly assembled to connector 110. Connector 110 is formed with a connecting through-hole 110a and a sealing groove 110e. Connecting through-hole 110a is configured to constitute at least a portion of insertion channel 100a. Sealing groove 110e is formed in the wall of connecting through-hole 110a and surrounds connecting through-hole 110a. The seal is configured as a sealing ring adapted to fit into sealing groove 110e.

[0135] In order to enhance the sealing effect, the connector 110 has a plurality of sealing grooves 110 e distributed at different positions in the insertion direction D; thus, multiple seals can be formed in the insertion channel 100 a in the insertion direction D.

[0136] Reference Figure 2 As shown, as a specific solution, the joint device 100 is further formed with a connection sealing structure 100 e . The connection sealing structure 100 e is configured to seal the area between the joint device 100 and the base 12 .

[0137] In a more specific embodiment, the connector device 100 includes a connection seal 140 configured to form a connection seal structure 100e. Connection seal 140 is fixedly assembled to the connector 110. In the insertion direction D, connection seal 100e is positioned between the retaining structure 100c and the channel sealing structure 100d. In a more specific embodiment, connection seal 100e is configured as a sealing ring that fits over the root of the external threads of the connecting portion 111 of the connector 110. This effectively seals the space between the connector 110 and the base 12.

[0138] Reference Figures 7 to 10 shown. Figure 7 is a schematic structural diagram of a base 12 provided in an exemplary embodiment of the present application; Figure 8 yes Figure 7 A cross-sectional view of the base 12 is shown.

[0139] As a second aspect of the present application, the present application further provides a pipe connection assembly 10, which includes: the aforementioned conduit 11, a base 12, and a connector device 100. In this case, the base 12 can be understood as a connector having a medium channel 12a.

[0140] As a specific solution, the base 12 is formed with a stop structure 12b at the end of the medium channel 12a. The stop structure 12b is configured to stop the end of the conduit 11 from being inserted into the connector device 100 at a preset position. In the insertion direction D, the stop structure 100c is at least partially disposed between the stop structure 12b and the connecting structure 100b. The stop structure 12b is constructed as a stop slope 12c that obliquely intersects the insertion direction D and contracts in a positive direction along the insertion direction D. As a more specific solution, the medium channel 12a gradually contracts away from the connector device 100 from the stop slope 12c, that is, the medium channel 12a includes a bell mouth formed by the stop slope 12c and a cylindrical channel.

[0141] With this solution, after the catheter 11 is inserted and contacts the stop bevel 12c, the insertion depth of the catheter 11 can be limited by the stop bevel 12c to ensure the consistency of insertion; at the same time, the contraction of the stop bevel 12c can avoid interference with the catheter 11 channel.

[0142] Reference Figures 11 to 16 shown. Figure 11 1 is a schematic structural diagram of the pressure-maintaining valve 2 provided in an exemplary embodiment of the present application in a state where the conduit 11 is not inserted; Figure 12 yes Figure 11 The cross-sectional structural diagram of the pressure-maintaining valve 2 is shown; Figure 13 2 is a schematic structural diagram of the pressure-maintaining valve 2 provided in an exemplary embodiment of the present application, which is inserted midway into the conduit 11; Figure 14 yes Figure 13 The cross-sectional structural diagram of the pressure-maintaining valve 2 is shown; Figure 15 2 is a schematic structural diagram of the pressure-maintaining valve 2 provided in an exemplary embodiment of the present application being inserted into the conduit 11; Figure 16 15 is a schematic cross-sectional view of the pressure retaining valve 2.

[0143] As a third aspect of the present application, the present application further provides a pressure-maintaining valve 2, which includes the aforementioned connector device 100 or the aforementioned pipe connector 110. The aforementioned base 12 serves as the valve seat of the pressure-maintaining valve 2. Other structures of the pressure-maintaining valve 2 are well known to those skilled in the art and are not described in detail here.

[0144] In addition, refer to Figures 11 to 16 As shown, the catheter 11 can be effectively fixed when the user is inserting and installing, thereby improving the installation efficiency.

[0145] Reference Figure 17 As shown, as the fourth aspect of the present application, the present application also provides a vehicle 1, which includes the above-mentioned connector device 100, pipeline connection assembly 10 or pressure maintaining valve 2. The vehicle 1 has all the beneficial effects of the above-mentioned connector device 100, pipeline connection assembly 10 or pressure maintaining valve 2, and the present application will not repeat them here.

[0146] The vehicle 1 may be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and this application does not make any specific limitation thereto.

[0147] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0148] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0149] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0150] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A connector device, suitable for mounting the end of a conduit to a base having a medium passage, characterized in that: The joint device is formed with: An insertion channel configured to provide space required for the catheter to be inserted forwardly along an insertion direction; a connecting structure configured to connect the connector device to the base; The anti-retraction structure is configured to provide a force to prevent the catheter from moving in the opposite direction along the insertion direction.

2. The connector device according to claim 1, wherein: The connector device comprises: a connecting member configured to form the connecting structure; a stop member configured to form the stop structure; The retaining member is movably assembled to the connecting member so that the retaining member is at least partially located between the base and the connecting member in the insertion direction.

3. The connector device according to claim 2, wherein: The connecting piece is formed with: a connecting through hole configured to constitute at least a portion of the insertion channel; The retaining member is formed with: a stop hole configured to constitute at least a portion of the insertion passage; The anti-retraction through hole is arranged corresponding to the connecting through hole.

4. The connector device according to claim 3, characterized in that: The connecting piece is formed with: a limiting groove configured to accommodate at least a portion of the retaining member; The limiting groove is provided at the end of the connecting member; the connecting through hole extends from the other end of the connecting member along the insertion direction to the limiting groove, so that the insertion channel passes through the connecting member.

5. The connector device according to claim 4, characterized in that: The limiting groove has a limiting inclined surface obliquely intersecting with the insertion direction; The outer periphery of the retaining member is provided with a retaining inclined surface adapted to the limiting inclined surface.

6. The connector device according to claim 5, characterized in that: The limiting groove has a limiting end surface perpendicular to the insertion direction; The end portion of the retaining member has a retaining end surface parallel to the limiting end surface.

7. The connector device according to claim 6, characterized in that: The limiting inclined surface constitutes a groove wall of the limiting groove, and the limiting end surface constitutes a groove bottom of the limiting groove.

8. The connector device according to claim 3, characterized in that: The anti-retreat structure is arranged on the hole wall of the anti-retreat through hole.

9. The connector device according to claim 8, characterized in that: The anti-retraction structure is configured as an anti-retraction protrusion protruding from a hole wall of the anti-retraction through hole.

10. The connector device according to claim 9, characterized in that: The retaining protrusion is configured as a surrounding structure surrounding the retaining through hole.

11. The connector device according to claim 10, characterized in that: The cross-sectional profile of the retaining protrusion includes a retaining edge extending at least in a direction different from the insertion direction; in the insertion direction, the retaining edge is arranged on a side of the retaining protrusion away from the connecting structure.

12. The connector device according to claim 11, characterized in that: The cross-sectional profile of the retaining protrusion further includes a guide edge extending at least in a direction obliquely intersecting the insertion direction; in the insertion direction, the guide edge is arranged on a side of the retaining protrusion close to the connecting structure.

13. The connector device according to claim 2, characterized in that: The connecting piece includes: a connecting portion adapted to at least partially embed into the base so that the connecting member and the base form a fixed connection; The insertion portion is adapted to be at least partially exposed outside the base when the connecting member and the base are fixedly connected.

14. The connector device according to claim 13, characterized in that: The connecting structure is arranged at the connecting portion, and one end of the insertion channel is arranged at the insertion portion.

15. The connector device according to claim 14, characterized in that: The connection structure is configured as an external thread provided on the outside of the connection portion.

16. The connector device according to any one of claims 1 to 15, characterized in that: The joint device is further formed with: The channel sealing structure is configured to seal the area of ​​the insertion channel located around the catheter.

17. The connector device according to claim 16, characterized in that: The connector device comprises: The channel sealing member is configured to form the channel sealing structure.

18. The connector device according to claim 17, characterized in that: The connector device comprises a plurality of channel sealing members distributed at different positions in the plug-in direction.

19. The connector device according to claim 18, characterized in that: The plurality of channel sealing members distributed at different positions in the insertion direction are constructed as a plurality of different sealing rings.

20. The connector device according to claim 17, wherein: The connector device further comprises: a connecting member configured to form the connecting structure; a stop member configured to form the stop structure; The retaining member is movably assembled to the connecting member; and the channel sealing member is fixedly assembled to the connecting member.

21. The connector device according to claim 20, characterized in that: The connecting piece is formed with: a connecting through hole configured to constitute at least a portion of the insertion channel; A sealing groove is formed at the hole wall of the connecting through hole and surrounds the connecting through hole; The sealing element is configured as a sealing ring adapted to be embedded in the sealing groove.

22. The connector device according to claim 21, characterized in that: The connecting piece has a plurality of sealing grooves distributed at different positions in the insertion direction.

23. The connector device according to claim 17, wherein: The joint device is further formed with: A connection sealing structure is configured to seal the area between the joint device and the base.

24. The connector device according to claim 23, characterized in that: The connector device comprises: a connecting member configured to form the connecting structure; a connection sealing member configured to form the connection sealing structure; The connection seal is fixedly assembled to the connection member.

25. The connector device according to claim 23, characterized in that: In the insertion direction, the connection sealing structure is arranged between the retaining structure and the channel sealing structure.

26. A pipe connection assembly, characterized in that: The pipeline connection assembly includes: a conduit, a base having a medium channel, and a connector device according to any one of claims 1 to 25.

27. The pipe connection assembly according to claim 26, characterized in that: The base is formed at the end of the medium channel: The stop structure is configured to stop the end of the catheter from being inserted into the connector device at a preset position.

28. The pipe connection assembly according to claim 27, characterized in that: In the insertion direction, the retaining structure is at least partially arranged between the stopping structure and the connecting structure.

29. The pipe connection assembly according to claim 27 or 28, characterized in that: The stop structure is configured as a stop slope that obliquely intersects the insertion direction and contracts in a positive direction along the insertion direction.

30. A pressure-maintaining valve, suitable for maintaining pressure in a shock-absorbing system of a vehicle, characterized in that: The pressure-maintaining valve includes the connector device according to any one of claims 1 to 25 or the pipeline connection assembly according to any one of claims 26 to 29.

31. A vehicle, characterized in that: The vehicle comprises: the joint device according to any one of claims 1 to 25, the pipeline connection assembly according to any one of claims 26 to 29, or the pressure maintaining valve according to claim 30.

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