Quick connector

Abstract

The invention relates to the field of connectors, and provides a quick connector which comprises a first connector body and a second connector body. The first connector is connected with the second connector in an inserted mode. One end of the first connector is an inserting end, a clamping piece is arranged at the inserting end, the second connector is provided with a clamping groove, and a locking piece is arranged in the clamping groove; the first connector and the clamping piece are synchronously inserted into the clamping groove, the first connector and the clamping piece are rotated so that the clamping piece and the clamping groove can be connected in a clamped mode, the clamping piece is locked through the locking piece after rotation, and rapid disassembly and assembly are provided. The connecting structure has the effects of being stable in connection and convenient to disassemble and assemble.

Description

Technical Field

[0001] The present application relates to the field of connectors, and in particular to a quick connector. Background Art

[0002] A quick connector is a tool-free connector that allows pipes to be connected or disconnected. Because it has a two-way check function and leak-free pipe disconnection, it has been widely used in the fields of petroleum, metallurgy, hydropower, engineering machinery, shipbuilding, electromechanical equipment, and so on.

[0003] General quick connectors use upper and lower connectors for plug-in fixation, but it is difficult to achieve a balance between the stability of the connection between the upper and lower connectors and the ease of disassembly. When providing quick connection, stability is difficult to ensure, and when providing a stable connection, the disassembly process is complicated and difficult to achieve quick disassembly. Summary of the Invention

[0004] In order to improve the above problems, the present application provides a quick connector.

[0005] The quick connector provided in this application adopts the following technical solution: A quick connector includes a first connector and a second connector; the first connector is plugged into the second connector; one end of the first connector is a plug-in end, and a clamping piece is provided at the plug-in end; the second connector is provided with a clamping groove, and a locking piece is provided in the clamping groove; the first connector and the clamping piece are synchronously inserted into the clamping groove, and the first connector and the clamping piece are rotated to clamp the clamping piece into the clamping groove. After rotation, the clamping piece is locked by the locking piece to provide quick disassembly and assembly.

[0006] By adopting the above technical solution, the first connector and the second connector are inserted into the clamping groove by using the clamping piece at the same time as they are plugged in. The clamping groove limits the clamping piece so that the clamping piece and the first plug cannot be separated from the clamping groove and the second plug. The clamping piece is locked by the locking piece. After the clamping piece is locked by the locking piece, the clamping piece can no longer be separated from the clamping groove, so as to ensure the stability of the connection. When disassembly is required, the locking piece is opened, and the clamping piece loses the fixing effect of the locking piece and can be separated from the clamping groove by rotating, so as to achieve quick disassembly and assembly while ensuring a stable connection.

[0007] Optionally, the clamping part includes two wedge-shaped parts, and the two wedge-shaped parts are respectively installed on both sides of the connecting end; the clamping groove is divided into three sections, the first section is a straight groove, the second section is a rotating cavity, and the third section is a plug-in cavity for the connecting end to extend; the two wedge-shaped parts and the connecting end are aligned with the straight groove of the first section and inserted into the second section, the two wedge-shaped parts are located in the rotating cavity, and the connecting end is synchronously inserted into the plug-in cavity; the first connector is rotated along the rotating cavity, and the wedge-shaped part is staggered with the straight groove, so that the wedge-shaped part cannot be separated from the clamping groove.

[0008] By adopting the above technical solution, when the first plug and the second plug need to be fixed, the first connector is plugged into the second connector, so that the two wedge-shaped parts are inserted into the rotating cavity along the straight groove. The first connector is rotated along the rotating cavity of the second section, and the two wedge-shaped parts are synchronously driven to stagger with the straight groove, so that the wedge-shaped parts no longer dock with the straight groove and cannot escape from the engaging groove, thereby stably engaging the first plug and the second plug.

[0009] Optionally, the rotating cavity is divided into two fan-shaped cavities, and the angle between the fan-shaped cavities and the center of the circle is 45 degrees.

[0010] By adopting the above technical solution, the two wedge-shaped parts can directly rotate to abut against the wall of the fan-shaped cavity during the rotation process, and can accurately rotate to 45 degrees, thereby achieving the effect of fixed-point rotation.

[0011] Optionally, the wall surface of the rotating cavity close to the plug-in cavity is an inclined surface corresponding to the wedge-shaped surface of the wedge-shaped portion.

[0012] By adopting the above technical solution, the inclined surface can determine the accurate insertion position of the wedge-shaped portion, that is, when the plug-in end and the wedge-shaped portion are synchronously inserted into the rotating cavity, the wedge-shaped portion and the plug-in end are directly inserted to the bottom, that is, the wedge surface of the wedge-shaped portion is directly in contact with the inclined surface, so that the accurate insertion position of the wedge-shaped portion and the plug-in end can be determined.

[0013] Optionally, the locking member is installed at the first section of the snap-in slot, and a locking slot is provided at the first connector away from the plug-in end. When the first connector is inserted into the snap-in slot, the locking member is snap-connected and locked with the locking slot.

[0014] By adopting the above technical solution, when the first connector is inserted into the snap-in groove, the wedge-shaped portion abuts against the inclined surface of the fan-shaped cavity, and the plug-in end is inserted into the plug-in cavity. At this time, the locking groove is aligned with the locking piece, and the locking piece is engaged with the locking groove to lock the plug-in end. After being locked, the plug-in end cannot rotate. If it cannot rotate, the wedge-shaped portion cannot rotate to the first section of the snap-in groove, and thus cannot be separated from the snap-in groove, thereby ensuring that the connection between the first connector and the second connector is stable.

[0015] Optionally, the locking groove and the wedge-shaped portion are staggered, and the staggered angle is 45 degrees.

[0016] By adopting the above technical solution, the wedge-shaped portion is staggered with the first section of the I-shaped groove of the snap-in groove. At this time, the locking groove is just rotated 45 degrees to dock with the locking piece, thereby cooperating with the staggered angle of the fan-shaped cavity to achieve the effect of quickly and accurately rotating the locking groove and the locking piece to dock.

[0017] Optionally, the locking member includes a locking portion and an elastic portion; an embedding opening is provided at the first section of the wall surface of the snap-in groove, the locking portion is located in the embedding opening, and is slidingly connected to the embedding opening; the elastic portion is located in the embedding opening and is connected to the locking portion, providing an elastic force to push the locking portion toward the snap-in groove.

[0018] By adopting the above technical solution, when the plug-in end is inserted into the plug-in cavity and rotated 45 degrees, the locking groove on the plug-in end will dock with the locking part, and the locking part will be inserted into the clamping cavity under the action of elastic force, so that the plug-in end cannot rotate, thereby completing the locking effect.

[0019] Optionally, the embedding port is a T-shaped port, and a fixing portion is provided inside, and the fixing portion is provided with a socket for the locking portion to pass through; one end of the elastic portion is connected to the locking portion, and the other end is connected to the fixing portion; the slot of the embedding port away from the clamping slot is connected to the outside of the second joint, and is provided with a sliding switch, and the side of the sliding switch close to the fixing portion is a sliding wedge surface; the locking portion passes through the socket and contacts the sliding wedge surface, and the contact surface is a locking wedge surface corresponding to the sliding wedge surface.

[0020] By adopting the above technical solution, when the sliding switch moves along the T-shaped opening, the sliding wedge surface of the sliding switch contacts the locking wedge surface of the locking portion, so that the locking portion is pushed by the sliding switch and moves along the embedded opening, extends into the embedded opening and disengages from the locking groove, thereby losing the locking effect and the wedge portion can rotate.

[0021] Optionally, the sliding switch is located on one side of the embedding port and is a rod-shaped structure, extending outward through the embedding port and is a flat block-shaped structure, and is located outside the second joint and is an arc-shaped cover plate.

[0022] By adopting the above technical solution, the rod-shaped structure cannot be separated from the T-shaped opening, and the flat block structure at the T-shaped opening provides a limit, so that the rod-shaped structure can move along the T-shaped opening, and the arc-shaped cover plate can cover the T-shaped opening.

[0023] Optionally, the arc-shaped cover plate is larger than the outlet outside the second joint, so that the arc-shaped cover plate covers the outlet of the embedded opening outside the second joint.

[0024] By adopting the above technical solution, no matter how the arc-shaped cover plate slides, the embedding opening can be covered to prevent debris from entering the embedding opening and clogging the internal structure.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. When the first connector and the second connector are plugged in, the clamping member is inserted into the clamping slot. The clamping slot limits the clamping member so that the clamping member and the first plug cannot be separated from the clamping slot and the second plug. The clamping member is locked by the locking member. After the clamping member is locked by the locking member, the clamping member cannot be separated from the clamping slot, thereby ensuring the stability of the connection. When disassembly is required, the locking member is opened, and the clamping member loses the fixing effect of the locking member and can be separated from the clamping slot by rotating, thereby achieving quick disassembly and assembly while ensuring a stable connection. 2. When the first plug and the second plug need to be fixed, the first connector and the second connector are plugged together, so that the two wedge-shaped parts are inserted into the rotating cavity along the straight groove. The first connector is rotated along the second section of the rotating cavity, which simultaneously drives the two wedge-shaped parts to stagger with the straight groove, so that the wedge-shaped parts no longer abut the straight groove and cannot be separated from the engaging groove, thereby stably engaging the first plug and the second plug; 3. During the rotation process, the two wedge-shaped parts rotate directly until they touch the wall of the fan-shaped cavity, and can accurately rotate to 45 degrees, achieving the effect of fixed-point rotation; 4. The inclined surface can determine the accurate insertion position of the wedge-shaped portion, that is, when the plug-in end and the wedge-shaped portion are inserted into the rotating cavity synchronously, the wedge-shaped portion and the plug-in end are directly inserted to the bottom, that is, the wedge surface of the wedge-shaped portion is directly in contact with the inclined surface, so that the insertion position of the wedge-shaped portion and the plug-in end can be determined to be accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a quick connector in one embodiment of the present application; Figure 2 is a schematic diagram of the cross-sectional structure of each section of the second joint in some embodiments of the present application; Figure 3 is a schematic diagram of the cross-sectional structure of some second joints in some embodiments of the present application; Figure 4 is a schematic diagram of the three-dimensional structure of a slide switch in some embodiments of the present application; The marks in the accompanying drawings are: 1. First connector, 11. Snap-fitting piece, 111. Wedge-shaped portion, 12. Locking groove, 2. Second connector, 21. Snap-fitting groove, 211. I-shaped notch, 212. Rotating cavity, 213. Inserting cavity, 22. Locking piece, 221. Locking portion, 222. Elastic portion, 223. Fixing portion, 224. Sliding switch, 23. Embedding port. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the information disclosed in this application. The present application can also be implemented or applied through different specific embodiments. The details in this application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless they conflict.

[0028] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0029] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0030] Furthermore, the terms "first" and "second" are used solely to indicate a target and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0031] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0032] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0033] The embodiment of the present application discloses a quick connector.

[0034] A quick connector, see Figure 1As shown, it includes a first connector 1 and a second connector 2; the first connector 1 and the second connector 2 are plugged in; one end of the first connector 1 is a plug-in end, and a clamping member 11 is provided at the plug-in end, and the second connector 2 is provided with a clamping groove 21. The first plug is a male connector and the second plug is a female connector, so the first connector 1 and the second connector 2 can be plugged in. While plugging in, the clamping member 11 is inserted into the clamping groove 21, and the clamping member 11 is limited by the clamping groove 21, so that the clamping member 11 and the first plug cannot be separated from the clamping groove 21 and the second plug. The first connector 1 and the clamping member 11 are rotated, and the clamping member 11 is clamped with the clamping groove 21 by rotation, thereby completing quick disassembly and assembly.

[0035] A locking piece 22 is provided in the snap-fitting groove 21. The first connector 1 and the snap-fitting piece 11 are inserted into the snap-fitting groove 21 simultaneously. The snap-fitting piece 11 is locked by the locking piece 22. After the snap-fitting piece 11 is locked by the locking piece 22, the snap-fitting piece 11 can no longer be separated from the snap-fitting groove 21 to ensure the stability of the connection. When disassembly is required, the locking piece 22 is opened, and the snap-fitting piece 11 loses the fixing effect of the locking piece 22 and can be separated from the snap-fitting groove 21 by rotation, thereby achieving quick disassembly and assembly while ensuring a stable connection.

[0036] For further reference, Figure 2 As shown, the clamping member 11 includes two wedge-shaped portions 111, which are respectively installed on the plug-in ends of the first connector 1, so that the two wedge-shaped portions 111 and the plug-in ends are connected to each other to form a straight-line structure. The wedge-shaped portions 111 can be wedge-shaped blocks.

[0037] The first section is a straight slot 211, the second section is a rotating cavity 212, and the third section is a plug-in cavity 213 for the plug-in end to extend. The straight slot 211 of the first section allows the two wedge-shaped parts 111 and the plug-in end to be inserted into the rotating cavity 212 at the same time.

[0038] The two wedge-shaped portions 111 and the plug-in end are aligned with the I-shaped notch 211 of the first section and inserted into the second section. The two wedge-shaped portions 111 are located in the rotating cavity 212, and the plug-in end is synchronously inserted into the plug-in cavity 213. At this time, the two wedge-shaped portions 111 and the plug-in end can still be pulled out and separated along the I-shaped notch 211 of the first section of the clamping groove 21.

[0039] When the first plug and the second plug need to be fixed, the first connector 1 is rotated along the rotating cavity 212 of the second section, and the two wedge-shaped portions 111 are synchronously driven to stagger with the straight groove 211, so that the wedge-shaped portions 111 are no longer aligned with the straight groove 211, and thus cannot be separated from the engaging groove 21, so that the first plug and the second plug are stably engaged, and the plug-in end is inserted into the plug-in cavity 213. A communicating channel can be opened in the plug-in end to transport liquid for discharge or delivery from the second connector 2.

[0040] Further, refer to Figure 2As shown, the rotating cavity 212 is divided into two fan-shaped cavities, and the center angle of the fan-shaped cavity is 45 degrees. The use of the fan-shaped cavity can fix the rotation angle of the two wedge-shaped portions 111. During the rotation process, the two wedge-shaped portions 111 are directly rotated to the cavity wall against the fan-shaped cavity, and can accurately rotate 45 degrees to achieve the effect of fixed-point rotation, and can quickly rotate the wedge-shaped portion 111 and the corresponding plug-in end to the locking position with the locking member 22.

[0041] Furthermore, the wall surface of the rotating cavity 212 close to the plug-in cavity 213 is an inclined surface corresponding to the wedge-shaped surface of the wedge-shaped portion 111. The inclined surface can determine the accurate insertion position of the wedge-shaped portion 111, that is, when the plug-in end and the wedge-shaped portion 111 are synchronously inserted into the rotating cavity 212, the wedge-shaped portion 111 and the plug-in end are directly inserted to the bottom, that is, the wedge-shaped surface of the wedge-shaped portion 111 is directly in contact with the inclined surface, so that the accurate insertion position of the wedge-shaped portion 111 and the plug-in end can be determined.

[0042] In some embodiments, reference Figure 1 and Figure 2 As shown, the locking member 22 is installed at the first section of the clamping groove 21, and the first connector 1 is provided with a locking groove 12 away from the plug-in end. When the first connector 1 is inserted into the clamping groove 21, the wedge-shaped portion 111 abuts against the inclined surface of the fan-shaped cavity, and the plug-in end is inserted into the plug-in cavity 213. At this time, the locking groove 12 is aligned with the locking member 22, and the locking member 22 is clamped with the locking groove 12 to lock the plug-in end. After the plug-in end is locked, it cannot rotate. If it cannot rotate, the wedge-shaped portion 111 cannot be rotated to the first section of the clamping groove 21, thereby preventing it from detaching from the clamping groove 21, thereby ensuring that the connection between the first connector 1 and the second connector 2 is stable.

[0043] Furthermore, the locking groove 12 is staggered with the wedge-shaped portion 111, and the staggered angle is 45 degrees, so that when the wedge-shaped portion 111 and the plug-in end are inserted into the rotating cavity 212, they rotate 45 degrees along the fan-shaped structure of the rotating cavity 212, and the wedge-shaped portion 111 is staggered with the first section of the I-shaped notch 211 of the clamping groove 21. At this time, the locking groove 12 is just rotated 45 degrees to dock with the locking member 22, thereby cooperating with the staggered angle of the fan-shaped cavity to achieve the effect of quickly and accurately rotating the locking groove 12 and the locking member 22 to dock. The locking groove 12 is locked by the locking member 22, so that the first plug cannot rotate, and the plug-in end can be fixedly installed in the plug-in cavity 213 through the staggered wedge-shaped portion 111.

[0044] Further, refer to Figure 1 and Figure 3As shown, the locking member 22 includes a locking portion 221 and an elastic portion 222; an embedding opening 23 is opened on the wall surface of the first section of the clamping groove 21, and the locking portion 221 is located in the embedding opening 23 and is slidably connected to the embedding opening 23; the elastic portion 222 is located in the embedding opening 23 and is connected to the locking portion 221, providing an elastic force that pushes the locking portion 221 toward the clamping groove 21. The locking portion 221 can be a locking column, and the elastic portion 222 can be a spring. The spring is connected to the embedding opening 23. The other end is connected to the groove wall, and the other end is wrapped around the locking part 221 and connected to the locking part 221. An elastic force can be applied to the locking part 221 toward the clamping groove 21, so that the locking part 221 always extends toward the clamping groove 21. When the plug end is inserted into the plug cavity 213 and rotated 45 degrees, the locking groove 12 on the plug end will dock with the locking part 221. The locking part 221 is inserted into the clamping cavity under the action of the elastic force, so that the plug end cannot rotate, thereby completing the locking effect.

[0045] When disassembly is required, the locking portion 221 extends from the end of the embedding port 23 away from the snap-in slot 21. The locking portion 221 can be pulled out of the locking slot 12. The locking of the locking portion 221 is lost, and the plug-in end can be rotated 45 degrees to align the wedge-shaped portion 111 with the I-shaped slot 211. The first plug or the second plug can be pulled, and the wedge-shaped portion 111 disengages along the I-shaped slot 211, and the first plug and the second plug are separated.

[0046] In some embodiments, reference Figure 1 and Figure 3 As shown, the embedding opening 23 is a T-shaped opening, and a fixing portion 223 is provided inside. The fixing portion 223 is provided with a socket for the locking portion 221 to pass through. The fixing portion 223 can be a fixing block or a fixing ring. The fixing portion 223 is used to fix the position of the elastic portion 222 and allow the locking portion 221 to freely expand and contract along the socket.

[0047] One end of the elastic portion 222 is connected to the locking portion 221, and the other end is connected to the fixing portion 223. When one end of the spring is connected to the fixing portion 223, when the locking portion 221 is extended and retracted along the insertion hole, only the locking portion 221 is driven to move and squeeze the elastic portion 222, and the elastic portion 222 will not be driven to separate from the fixing portion 223.

[0048] The side of the T-shaped opening away from the clamping groove 21 is connected to the outside of the second joint 2 and is provided with a sliding switch 224. The side of the sliding switch 224 close to the fixed portion 223 is a sliding wedge surface. The locking portion 221 passes through the insertion hole and contacts the sliding wedge surface, and the contact surface is a locking wedge surface corresponding to the sliding wedge surface. When the sliding switch 224 moves along the T-shaped opening, the sliding switch 224 uses the sliding wedge surface to contact the locking wedge surface of the locking portion 221, so that the locking portion 221 is pushed by the sliding switch 224, thereby moving along the embedded opening 23, extending into the embedded opening 23 and disengaging from the locking groove 12, thereby losing the locking effect and the wedge portion 111 can rotate.

[0049] When the locking portion 221 needs to be further inserted into the locking slot 12 for locking, the sliding switch 224 is released, and the locking portion 221 is ejected toward the locking slot 12 by the elastic force of the elastic portion 222 , while pushing the sliding switch 224 to reset.

[0050] For further reference, Figure 4 As shown, the sliding switch 224 is located on one side of the T-shaped opening and is a rod-shaped structure, which extends outward through the T-shaped opening and is a flat block-shaped structure. An arc-shaped cover plate is located outside the second joint 2. The sliding wedge surface is opened at the rod-shaped structure. The size of the rod-shaped structure is larger than the T-shaped opening, so that it cannot be separated from the T-shaped opening. The flat block structure at the T-shaped opening provides a limit so that the rod-shaped structure can move along the T-shaped opening, and the arc-shaped cover plate can cover the T-shaped opening.

[0051] The side of the arc-shaped cover away from the T-shaped opening may be provided with anti-slip grooves or an anti-slip plastic layer to provide an anti-slip effect.

[0052] The locking members 22 and the locking slots 12 can be provided in two groups, and providing two groups can increase the stability of the locking.

[0053] Furthermore, the size of the arc cover is larger than the T-shaped opening, so that it can cover the groove of the T-shaped opening outside the second joint 2, so that no matter how the arc cover slides, the T-shaped opening can be covered to prevent debris from entering the T-shaped opening and clogging the internal structure.

[0054] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A quick connector, comprising a first connector (1) and a second connector (2); the first connector (1) and the second connector (2) are plugged together, characterized in that: One end of the first connector (1) is a plug-in end, and a clamping member (11) is provided at the plug-in end. The second connector (2) is provided with a clamping groove (21), and a locking member (22) is provided in the clamping groove (21); the first connector (1) and the clamping member (11) are synchronously inserted into the clamping groove (21), and the first connector (1) and the clamping member (11) are rotated so that the clamping member (11) and the clamping groove (21) are clamped. After the rotation, the clamping member (11) is locked by the locking member (22), thereby providing quick disassembly and assembly.

2. A quick connector according to claim 1, characterized in that: The clamping member (11) includes two wedge-shaped portions (111), and the two wedge-shaped portions (111) are respectively installed on both sides of the plug-in end; the clamping groove (21) is divided into three sections, the first section is a straight groove (211), the second section is a rotating cavity (212), and the third section is a plug-in cavity (213) for the plug-in end to extend; the two wedge-shaped portions (111) and the plug-in end are aligned with the straight groove (211) of the first section and inserted into the second section, the two wedge-shaped portions (111) are located in the rotating cavity (212), and the plug-in end is synchronously inserted into the plug-in cavity (213); the first connector (1) is rotated along the rotating cavity (212), and the wedge-shaped portion (111) and the straight groove (211) are staggered, so that the wedge-shaped portion (111) cannot be separated from the clamping groove (21).

3. A quick connector according to claim 2, characterized in that: The rotating cavity (212) is divided into two fan-shaped cavities, and the angle between the fan-shaped cavities and the center of the circle is 45 degrees.

4. A quick connector according to claim 2, characterized in that: The wall surface of the rotating cavity (212) on the side close to the plug-in cavity (213) is an inclined surface corresponding to the wedge-shaped surface of the wedge-shaped portion (111).

5. A quick connector according to claim 3, characterized in that: The locking member (22) is installed at the first section of the clamping groove (21), and a locking groove (12) is provided at the first connector (1) away from the plug-in end. When the first connector (1) is inserted into the clamping groove (21), the locking member (22) is clamped and locked with the locking groove (12).

6. A quick connector according to claim 5, characterized in that: The locking groove (12) and the wedge-shaped portion (111) are staggered, and the staggered angle is 45 degrees.

7. A quick connector according to claim 6, characterized in that: The locking member (22) includes a locking portion (221) and an elastic portion (222); an embedding opening (23) is provided at a first section of the wall surface of the clamping groove (21); the locking portion (221) is located in the embedding opening (23) and is slidably connected to the embedding opening (23); the elastic portion (222) is located in the embedding opening (23) and is connected to the locking portion (221), providing an elastic force to push the locking portion (221) toward the clamping groove (21).

8. A quick connector according to claim 7, characterized in that: The embedding opening (23) is a T-shaped opening, and a fixing portion (223) is provided inside. The fixing portion (223) is provided with a socket for the locking portion (221) to pass through. One end of the elastic portion (222) is connected to the locking portion (221), and the other end is connected to the fixing portion (223). The notch of the embedding opening (23) away from the clamping groove (21) is connected to the outside of the second joint (2) and is provided with a sliding switch (224). The side of the sliding switch (224) close to the fixing portion (223) is a sliding wedge surface. The locking portion (221) passes through the socket and contacts the sliding wedge surface, and the contact surface is a locking wedge surface corresponding to the sliding wedge surface.

9. A quick connector according to claim 8, characterized in that: The sliding switch (224) is located on one side of the embedding opening (23) and is a rod-shaped structure. It passes through the embedding opening (23) and extends outwards to form a flat block-shaped structure. It is located outside the second joint (2) and is an arc-shaped cover plate.

10. A quick connector according to claim 9, characterized in that: The arc-shaped cover plate is larger than the outlet outside the second joint (2), so that the arc-shaped cover plate covers the outlet of the embedded opening (23) outside the second joint (2).

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