1. A connector device, comprising a connector piece, a plug piece and a connecting assembly;

one end of the joint piece is a socket end, and the socket end is provided with an insertion hole; one end of the plug piece is a plug end, and the plug end is inserted into the insertion port;

the outer side wall of the socket has a first flange; the outer side wall of the plug piece is provided with a second flange and a third flange, and a clamping groove is formed between the second flange and the third flange;

the connecting assembly comprises a connecting ring and a clamping ring, the connecting ring is sleeved on the outer sides of the connector piece and the plug piece, and the clamping ring is sleeved on the outer side of the connecting ring;

the inner side wall of the connecting ring is provided with a first clamping tooth, and the first clamping tooth is clamped in the clamping groove; the outer side wall of the connecting ring is provided with a convex part, and the first latch and the convex part are oppositely positioned at two ends of the connecting ring;

the inner side wall of the clamping ring is provided with a second clamping tooth, and the second clamping tooth is clamped with the first flange; the snap ring towards the one end of piecing has the breach, the bulge card is gone into the breach.

2. The connector device according to claim 1, wherein the connecting ring has an escape opening at an end thereof facing the connector member, and the second latch passes through the escape opening and engages with the first flange.

3. The connector device according to claim 1, wherein the number of the projections is at least two, and at least two of the projections are spaced apart along a circumferential side of the connection ring;

the number of the notches is at least two, and the positions of the notches correspond to the positions of the bulges.

4. The connector device according to claim 1, wherein the number of the first latch is plural, and the plural first latches are uniformly distributed along a circumferential side of an inner side wall of the connection ring.

5. The connector device according to claim 1, wherein the retainer ring includes an elastic plate that is curved in an arc shape and has an opening formed between both ends thereof;

the second latch is located the inside wall of elastic plate, the elastic plate towards the one end of joint spare has the breach.

6. The joint device according to claim 5, wherein both ends of the elastic plate are respectively provided with a first toggle part and a second toggle part;

the first shifting part comprises a first shifting lever, and the first shifting lever extends out of the opening from the first end of the elastic plate;

the second shifting portion comprises a second shifting lever, and the second shifting lever extends out of the opening from the second end of the elastic plate.

7. The connector device of claim 6, wherein said first lever is located on a side of said second lever facing said connector, a face of said projection facing said plug member abutting a face of said first lever facing said connector.

8. A connector device according to claim 5, wherein the centre line of the resilient plate is co-linear with the centre line of the connecting ring.

9. The connector system of any one of claims 1-8, wherein the outer sidewall of said plug member has a circumferential groove formed therein, said circumferential groove being formed on the outer sidewall of the inner portion of said plug member inserted into said connector member;

the annular is internally provided with a sealing ring, and the sealing ring is abutted against the outer side wall of the plug piece and the inner side wall of the joint piece.

10. A vehicle comprising a joint arrangement according to any one of claims 1 to 9.

Background

In general, each system of a fuel system, a cooling system and the like of a vehicle needs to be provided with corresponding pipelines, and the pipelines are connected with a cylinder body or a pump body in each system through a joint device to be used as a conveying channel of fluid media such as fuel, cooling liquid and the like.

In the related art, a connector device generally includes a plug member and a connector member. One end of the joint piece is pre-installed on a cylinder body or a pump body in each system, the other end of the joint piece is provided with a socket, one end of the plug piece is inserted into the socket, and the other end of the plug piece is connected with a pipeline. The joint piece and the plug piece are fixed through a clamping ring, so that the pipeline is connected with a cylinder body or a pump body in each system through the joint device.

However, in the related art, the snap ring may be located in some narrow space in the vehicle, resulting in difficulty in disassembling the snap ring.

Disclosure of Invention

The embodiment of the application provides a joint device and a vehicle, and the snap ring of the joint device can rotate to the direction that the fingers are easy to operate relative to a joint piece and a plug piece, so that the fingers can conveniently detach the joint device.

The embodiment of the application provides a joint device, which comprises a joint piece, a plug piece and a connecting assembly;

one end of the joint piece is a socket end, and the socket end is provided with an insertion hole; one end of the plug piece is a plug end, and the plug end is inserted into the insertion port;

the outer side wall of the socket has a first flange; the outer side wall of the plug piece is provided with a second flange and a third flange, and a clamping groove is formed between the second flange and the third flange;

the connecting assembly comprises a connecting ring and a clamping ring, the connecting ring is sleeved on the outer sides of the connector piece and the plug piece, and the clamping ring is sleeved on the outer side of the connecting ring;

the inner side wall of the connecting ring is provided with a first clamping tooth, and the first clamping tooth is clamped in the clamping groove; the outer side wall of the connecting ring is provided with a convex part, and the first latch and the convex part are oppositely positioned at two ends of the connecting ring;

the inner side wall of the clamping ring is provided with a second clamping tooth, and the second clamping tooth is clamped with the first flange; the snap ring towards the one end of piecing has the breach, the bulge card is gone into the breach.

The clamping ring of the joint device provided by the embodiment of the application can rotate relative to the plug piece and the joint piece. Even the snap ring is located some narrow and small spaces in the vehicle, when dismantling the snap ring, the accessible rotates the snap ring to the direction that the finger was operated easily, and the finger of being convenient for is dismantled the snap ring.

In a possible implementation manner, the connector device provided by the embodiment of the present application, the connection ring faces towards one end of the connector piece, and the second latch passes through the avoidance port and is clamped with the first flange.

The avoiding opening is used for the second clamping tooth to pass through so as to be clamped with the first flange. Therefore, the second latch does not need to extend to the lower end of the connecting ring completely and bypasses the connecting ring to be clamped with the first flange, so that the structure of the second latch is simpler, and the connection is more convenient. The structure between the clamping ring and the connecting ring is more compact, and the space is not excessively occupied.

In a possible implementation manner, in the joint device provided by the embodiment of the present application, the number of the protrusions is at least two, and at least two of the protrusions are spaced apart along the circumferential side of the connection ring;

the number of the notches is at least two, and the positions of the notches correspond to the positions of the bulges.

The plurality of the convex parts are clamped into the notches of the clamping ring, so that the stress between the clamping ring and the connecting ring is more uniform, and the single convex part is prevented from being broken due to overlarge stress.

In a possible implementation manner, in the joint device provided by the embodiment of the present application, the number of the first latches is plural, and the plural first latches are uniformly distributed along the circumferential side of the inner side wall of the connection ring.

The first clamping teeth are uniformly distributed along the peripheral side of the inner side wall of the connecting ring, so that the first clamping teeth can be stably clamped into the clamping groove, the first clamping teeth can be uniformly stressed, the single first clamping tooth is prevented from being broken due to overlarge stress, and the connecting ring and the plug piece are stably connected.

In a possible implementation manner, in the joint device provided by the embodiment of the present application, the snap ring includes an elastic plate, the elastic plate is curved in an arc shape, and an opening is formed between two ends of the elastic plate;

the second latch is located the inside wall of elastic plate, the elastic plate towards the one end of joint spare has the breach.

When dismantling the snap ring, exert outside pulling force to the both ends of elastic plate, make the opening grow between the elastic plate both ends, no longer joint first flange until the second latch to make joint spare and snap ring separation, separate snap ring and go-between again, can conveniently dismantle the snap ring.

In a possible implementation manner, in the joint device provided in the embodiment of the present application, two ends of the elastic plate respectively have a first toggle portion and a second toggle portion;

the first shifting part comprises a first shifting lever, and the first shifting lever extends out of the opening from the first end of the elastic plate;

the second shifting part comprises a second shifting rod, and the second shifting rod extends out of the opening from the second end of the elastic plate;

first portion, the second of stirring can regard as the impetus, compare in the both ends of holding the elastic plate hard with the opening between the elastic plate both ends enlarge, hold between the fingers first portion, the second of stirring and stir the opening enlargement between the elastic plate both ends that can be more convenient.

The first deflector rod extends out of the opening from the first end of the elastic plate, which is equivalent to the extension of the first end of the elastic plate. Similarly, the second rod extends from the second end of the elastic plate to the outside of the opening, which is equivalent to extending the second end of the elastic plate. When the clamping ring needs to be disassembled, the opening between the two ends of the elastic plate can be enlarged only by holding the first driving lever and the second driving lever with force. The disassembly of the snap ring is more convenient and labor-saving.

In a possible implementation manner, in the joint device provided by the embodiment of the present application, the first shift lever is located on a side of the second shift lever facing the joint element, and a surface of the protrusion facing the plug element abuts against a surface of the first shift lever facing the joint element.

In one possible embodiment, the joint device provided by the embodiments of the present application, a center line of the elastic plate is collinear with a center line of the connection ring.

In a possible implementation manner, the connector device provided by the embodiment of the application, the outer side wall of the plug piece is provided with a ring groove, and the ring groove is positioned on the outer side wall of the inner part of the plug piece inserted into the connector piece;

the annular is internally provided with a sealing ring, and the sealing ring is abutted against the outer side wall of the plug piece and the inner side wall of the joint piece.

The embodiment of the application also provides a vehicle, which comprises the joint device. The pipes in the fuel system, the cooling system and other systems of the vehicle are connected with the cylinder or the pump body in the systems through the joint device. When the pipeline in the vehicle and the cylinder body or the pump body in the vehicle need to be disconnected, even if the snap ring 32 is located in some narrow spaces in the vehicle, the snap ring 32 can be rotated to a position where observation is convenient and fingers can be operated easily, and the fingers can detach the snap ring 32 conveniently, so that the pipeline in the vehicle and the cylinder body or the pump body in the vehicle are disconnected.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a joint device provided in an embodiment of the present application;

fig. 2 is an exploded view of a joint assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic side view of a splice device provided in accordance with embodiments of the present application;

FIG. 4 is a schematic top view of a coupling device provided in accordance with an embodiment of the present application;

FIG. 5 is a schematic view of section A-A in FIG. 4;

fig. 6 is a schematic structural diagram of a joint element in a joint device provided by an embodiment of the present application;

FIG. 7 is a first schematic structural diagram of a plug member in the connector device according to the embodiment of the present disclosure;

fig. 8 is a second schematic structural diagram of a plug member in the joint device according to the embodiment of the present disclosure;

FIG. 9 is a schematic view of an attachment ring of the connector apparatus according to an embodiment of the present application;

FIG. 10 is a schematic top view of an attachment ring of a connector device according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a snap ring in a joint device according to an embodiment of the present disclosure;

FIG. 12 is a schematic side view of a snap ring of a connector device according to an embodiment of the present disclosure;

fig. 13 is a schematic bottom view of a snap ring in a joint device according to an embodiment of the present disclosure.

Description of reference numerals:

10-a socket piece; 10 a-fixed end;

10 b-socket end; 11-insertion opening;

12-a first flange; 20-a plug member;

20 a-a connection end; 20 b-a plug end;

21-a second flange; 22-a third flange;

23-a card slot; 24-a ring groove;

30-a connecting assembly; 31-a connecting ring;

311-first latch; 312-a projection;

313-avoidance ports; 32-a snap ring;

32 a-a resilient plate; 321-a second latch;

322-notch; 323-a first toggle part;

324-a second toggle portion; 325-opening;

40-sealing ring.

Detailed Description

In the related art, the snap ring may be located in some narrow spaces in the vehicle, into which it is difficult for fingers to protrude when the snap ring is detached. In addition, when the switch of the clamping ring is opened, the position of the switch is inconvenient to observe due to the narrow space, and the finger is inconvenient to operate in the narrow space, so that the clamping ring is difficult to disassemble.

In view of the above, embodiments of the present application provide a joint device and a vehicle, where the joint device connects a joint member and a plug member via a connection ring and a snap ring, and the snap ring is rotatable with respect to the joint member and the plug member. Even the snap ring is arranged in some narrow and small spaces in the vehicle, the position which is convenient for observation and easy for finger operation can be rotated by the snap ring, and the snap ring is convenient to detach by the finger.

In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic structural diagram of a joint device provided in an embodiment of the present application; fig. 2 is an exploded view of a joint assembly according to an embodiment of the present disclosure; FIG. 3 is a schematic side view of a splice device provided in accordance with embodiments of the present application; FIG. 4 is a schematic top view of a coupling device provided in accordance with an embodiment of the present application; fig. 5 is a schematic view of the section a-a in fig. 4.

Referring to fig. 1 to 5, the present embodiment provides a connector device including a connector 10, a plug member 20, and a connecting assembly 30.

The joint 10 is used for connecting to a cylinder or a pump body in a vehicle and serves as an input port or an output port for a fluid medium such as fuel, coolant, or the like in these cylinders or pump bodies. One end of the joint member 10 is a fixed end 10a, and the fixed end 10a is generally fixed to a cylinder or a pump body in a vehicle in advance; the other end of the socket 10 is a socket end 10b, the socket end 10b has an insertion opening 11, and the insertion opening 11 is used for inserting the plug 20.

The plug member 20 is used to connect between the socket 10 and a pipe in a vehicle so that the pipe in the vehicle communicates with a cylinder or a pump body in the vehicle through the plug member 20 and the socket 10. One end of the plug member 20 is a connection end 20a, and the connection end 20a is generally connected to a pipe previously connected to a vehicle; the other end of the plug member 20 is a plug end 20b, and the plug end 20b is for insertion into the socket 10.

The connection assembly 30 serves to fix the plug member 20 and the socket member 10 so that the plug member 20 and the socket member 10 can be stably coupled.

With continued reference to fig. 2, the exterior side wall of the socket 10 has a first flange 12, the exterior side wall of the plug 20 has a second flange 21 and a third flange 22, and a slot 23 is formed between the second flange 21 and the third flange 22.

With continued reference to fig. 2, the connecting assembly 30 includes a connecting ring 31 and a snap ring 32, the connecting ring 31 is disposed on the outer sides of the socket 10 and the plug 20, and the snap ring 32 is disposed on the outer side of the connecting ring 31.

With continued reference to fig. 2 and 5, the inner side wall of the connection ring 31 has a first latch 311, and the first latch 311 is latched into the latch groove 23; the outer side wall of the connection ring 31 has a projection 312, and the first latch 311 is located at both ends of the connection ring 31 opposite to the projection 312.

With continued reference to fig. 2 and 5, the inner side wall of the snap ring 32 has a second latch 321, and the second latch 321 is engaged with the first flange 12; the end of the snap ring 32 facing the socket 10 has a notch 322, and the projection 312 snaps into the notch 322.

When the connector device is assembled, the plug end 20b of the plug member 20 is gradually inserted through the connection ring 31, and the first latch 311 of the connection ring 31 contacts the second flange 21 of the plug member 20 and is pressed outward by the second flange 21 until the first latch 311 passes through the second flange 21 and is latched into the latch groove 23 formed by the second flange 21 and the third flange 22, so that the plug member 20 is connected to the connection ring 31. At this time, the first latch 311 is blocked by the second flange 21 and cannot be taken out of the slot 23, but the first latch 311 can move along the extending direction of the slot 23, so that the connection ring 31 can rotate relative to the plug member 20.

After the plug member 20 is connected to the connection ring 31, the plug end 20b of the plug member 20 is inserted into the socket 10 from the insertion opening 11 of the socket 10. Then, the snap ring 32 is gradually moved from the connecting end 20a of the plug member 20 to the plug end 20b of the plug member 20 until the protrusion 312 on the outer side wall of the connection ring 31 is caught in the notch 322 of the snap ring 32, and the snap ring 32 is further moved so that the second latch 321 of the snap ring 32 is in contact with the first flange 12 of the socket 10 and is pressed by the first flange 12 to be outwardly pushed open until the second latch 321 passes through the first flange 12 and is caught in the first flange 12. At this time, the snap ring 32 is confined between the projection 312 and the first flange 12, the projection 312 is located on the connection ring 31 connected to the plug member 20, the first flange 12 is located on the socket member 10, and the plug member 20 and the socket member 10 are connected to the snap ring 32 through the connection ring 31. The snap ring 32 is limited only in the degree of freedom in the direction in which the plug member 20 is inserted into the socket member 10, so that the snap ring 32 can rotate together with the connection ring 31 with respect to the plug member 20 and the socket member 10.

Therefore, the present embodiment provides a joint device, in which the snap ring 32 can rotate relative to the plug member 20 and the joint member 10. Even if the snap ring 32 is located in some narrow spaces in the vehicle, when the snap ring 32 is detached, the snap ring 32 can be detached conveniently by rotating the snap ring 32 to the direction in which observation is convenient and fingers can be operated easily.

In addition, the connection ring 31 may remain on the plug member 20 in actual use, that is, the connection ring 31 is not removed from the plug member 20 when the joint device is disassembled. Thus, when it is necessary to connect the plug member 20 to the socket member 10 again, it is only necessary to insert the plug member 20 into the socket member 10 and connect the plug member 20 to the socket member 10 by the snap ring 32, so that the plug member 20 and the socket member 10 can be quickly mounted and dismounted.

Fig. 6 is a schematic structural diagram of a joint element in a joint device provided by an embodiment of the present application; FIG. 7 is a first schematic structural diagram of a plug member in the connector device according to the embodiment of the present disclosure; fig. 8 is a second schematic structural diagram of a plug member in the connector device according to the embodiment of the present application.

Referring to fig. 2, 5 and 6, the socket 10 is a hollow pipe body, and the socket 10 is generally made of a metal material such as a steel alloy, a copper alloy, or the like. The fixed end 10a of the socket 10 is connected to a cylinder or a pump body of a vehicle by means of a screw or welding, and the inside of the socket 10 is connected to the cylinder or the pump body of the vehicle. The first flange 12 is located at the socket end 10b of the socket 10, and the first flange 12 extends from the socket end 10b of the socket 10 toward the peripheral side of the socket 10.

Referring to fig. 2, 5 and 7, the plug member 20 is a hollow pipe body, and the plug member 20 is generally made of a metal material such as a steel alloy, a copper alloy, or the like. The connection end 20a of the plug member 20 is inserted into a duct in the vehicle to connect the plug member 20 with the duct in the vehicle. Second flange 21, third flange 22 are located between connection end 20a and plug end 20b of plug member 20. The first flange 12 protrudes outward from the outer side wall of the plug member 20, the second flange 21 protrudes outward from the outer side wall of the plug member 20, and the first flange 12 is parallel to the second flange 21.

With continued reference to fig. 7, the outer sidewall of the plug member 20 has a groove 24, the groove 24 is located between the plug end 20b and the second flange 21, and a sealing ring 40 is disposed in the groove 24. In this way, when the plug 20 is inserted into the socket 10, the seal ring 40 abuts against the outer side wall of the plug 20 and the inner side wall of the socket 10, so that the seal ring 40 can seal the gap between the outer side wall of the plug 20 and the inner side wall of the socket 10, thereby ensuring the sealing performance of the joint device.

Specifically, the seal ring 40 may be a rubber seal ring 40, a silicone seal ring 40, or the like.

Referring to fig. 7 and 8, a portion between the connecting end 20a of the plug member 20 and the second flange 21 may be in a straight tube shape, a bent tube shape, or the like. For example, referring to fig. 7, the portion between the connecting end 20a of the plug member 20 and the second flange 21 is in a straight tube shape. For example, referring to fig. 8, the portion of the plug member 20 between the connection end 20a and the second flange 21 may be bent.

FIG. 9 is a schematic view of a coupling of an attachment ring of a coupling device according to an embodiment of the present application; fig. 10 is a schematic top view of a connection ring in a connector device according to an embodiment of the present application.

Referring to fig. 2, 5, 9 and 10, in the embodiment of the present invention, the connection ring 31 has an escape opening 313 at an end facing the socket 10, and the second latch 321 passes through the escape opening 313 and is engaged with the first flange 12.

The avoiding opening 313 is used for the second latch 321 to pass through so as to be clamped with the first flange 12. Thus, the second latch 321 does not need to extend completely to the lower end of the connection ring 31, and then bypasses the connection ring 31 to be connected with the first flange 12 in a clamping manner, so that the structure of the second latch 321 is simpler and the connection is more convenient. The structure between the snap ring 32 and the connecting ring 31 is more compact, and the space is not excessively occupied.

In the embodiment of the present application, the number of the protrusions 312 is at least two, and the at least two protrusions 312 are spaced along the circumferential side of the connection ring 31; the number of the notches 322 is at least two, and the positions of the at least two notches 322 correspond to the positions of the at least two protrusions 312.

Specifically, the protrusions 312 are protrusions protruding outward from the outer side wall of the connection ring 31, the number of the protrusions 312 is four, and the four protrusions 312 are symmetrically distributed. The number of the notches 322 is three, two of the notches 322 are respectively inserted into the two protrusions 312 on one side of the connection ring 31, and the remaining one notch 322 is jointly inserted into the two protrusions 312 on the other side of the connection ring 31.

The plurality of protrusions 312 are clamped in the notches 322 of the snap ring 32, so that the force between the snap ring 32 and the connecting ring 31 is more uniform, and the single protrusion 312 is prevented from being broken due to overlarge force.

In the embodiment of the present application, the number of the first latch 311 is plural, and the plural first latches 311 are uniformly distributed along the peripheral side of the inner side wall of the connection ring 31.

The first latch teeth 311 are uniformly distributed along the circumferential side of the inner side wall of the connection ring 31, so that each first latch tooth 311 can be stably clamped into the clamping groove 23, uniform stress of each first latch tooth 311 can be ensured, breakage of a single first latch tooth 311 due to overlarge stress is avoided, and stable connection between the connection ring 31 and the plug member 20 is ensured.

Referring to fig. 2, 5, 9 and 10, in the embodiment of the present application, a surface of the first latch 311 facing the inner side of the connection ring 31 has a slope, so that when the connection ring 31 is connected to the plug member 20, the first latch 311 of the connection ring 31 contacts the second flange 21 of the plug member 20, and the second flange 21 exerts a flaring force on the first latch 311 by the slope of the first latch 311, so that the first latch 311 is pushed outward until the first latch 311 passes the second flange 21 and is latched into the latch slot 23 formed by the second flange 21 and the third flange 22. In this way, the connection of the connection ring 31 to the plug member 20 can be facilitated.

In addition, in order to prevent the first latch 311 from coming out of the latch groove 23, the protruding length of the third flange 22 is greater than that of the second flange 21. Thus, the inclined surface of the first latch 311 cannot contact with the edge of the third flange 22, and the first latch 311 is prevented from being removed from the card slot 23 by the third flange 22.

Fig. 11 is a schematic structural diagram of a snap ring in a joint device according to an embodiment of the present disclosure; FIG. 12 is a schematic side view of a snap ring of a connector device according to an embodiment of the present disclosure; fig. 13 is a schematic bottom view of a snap ring in a joint device according to an embodiment of the present disclosure.

Referring to fig. 2, 5 and 11 to 13, in the embodiment of the present invention, the snap ring 32 includes an elastic plate 32a, the elastic plate 32a is curved in an arc shape, and an opening 325 is formed between two ends of the elastic plate 32 a. The second latch 321 is located on the inner side wall of the elastic plate 32a, and one end of the elastic plate 32a facing the socket 10 has a notch 322.

Specifically, the elastic plate 32a may be made of plastic having good elasticity, the curvature of the elastic plate 32a is generally corresponding to the curvature of the outer sidewall of the connection ring 31, and the center line of the elastic plate 32a is collinear with the center line of the connection ring 31. So that the inner side wall of the elastic plate 32a can be better attached to the outer side wall of the connection ring 31. When the snap ring 32 needs to be disassembled, an outward pulling force is applied to the two ends of the elastic plate 32a, so that the opening 325 between the two ends of the elastic plate 32a is enlarged until the second latch 321 is no longer clamped with the first flange 12, the joint piece 10 is separated from the snap ring 32, and then the snap ring 32 is separated from the connecting ring 31, so that the snap ring 32 can be conveniently disassembled.

With continued reference to fig. 13, in the embodiment of the present application, a side of the second latch 321 facing the inside of the snap ring 32 is provided with a slope, so that when the snap ring 32 is connected to the socket 10, the second latch 321 of the snap ring 32 contacts the first flange 12 of the socket 10, and the first flange 12 exerts a flaring force on the second latch 321 through the slope of the second latch 321, so that the second latch 321 is pushed away outwards until the second latch 321 is engaged with the first flange 12.

Referring to fig. 11 to 13, in the embodiment of the present invention, both ends of the elastic plate 32a are respectively provided with a first toggle part 323 and a second toggle part 324.

The first toggle part 323 and the second toggle part 324 can be used as an acting point, and compared with the way that the opening 325 between the two ends of the elastic plate 32a is expanded by force when the two ends of the elastic plate 32a are held, the opening 325 between the two ends of the elastic plate 32a can be expanded more conveniently when the first toggle part 323 and the second toggle part 324 are held.

With continued reference to fig. 11-13, in the present embodiment, the first toggle portion 323 includes a first toggle extending from the first end of the elastic plate 32a toward the opening 325. The second toggle portion 324 includes a second toggle extending from the second end of the flexible plate 32a toward the opening 325.

The first lever extends from the first end of the elastic plate 32a to the outside of the opening 325, which is equivalent to extending the first end of the elastic plate 32 a. Similarly, the second lever extends from the second end of the elastic plate 32a to the outside of the opening 325, which is equivalent to extending the second end of the elastic plate 32 a. When the snap ring 32 needs to be disassembled, the opening 325 between the two ends of the elastic plate 32a can be expanded only by pinching the first and second shift levers with force. The snap ring 32 can be disassembled more conveniently and more labor-saving.

In the embodiment of the present application, the first shift lever is located on a side of the second shift lever facing the socket 10, and a surface of the protrusion 312 facing the plug 20 abuts against a surface of the first shift lever facing the socket 10.

Thus, the side of the first lever facing the adapter 10 may be used as part of one of the notches 322 in the snap ring 32 for abutting the projection 312. When the first lever is broken by force, the connection ring 31 and the snap ring 32 can be easily separated until the first lever is no longer abutted against the protrusion 312.

The embodiment of the application provides a vehicle, includes above-mentioned piecing devices. The pipes in the fuel system, the cooling system and other systems of the vehicle are connected with the cylinder or the pump body in the systems through the joint device. When the pipeline in the vehicle and the cylinder body or the pump body in the vehicle need to be disconnected, even if the snap ring 32 is located in some narrow spaces in the vehicle, the snap ring 32 can be rotated to a position where observation is convenient and fingers can be operated easily, and the fingers can detach the snap ring 32 conveniently, so that the pipeline in the vehicle and the cylinder body or the pump body in the vehicle are disconnected.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.