Quick-connection plug assembly

Abstract

The utility model provides a quick-connection plug assembly, which comprises a connector and a connection pipe capable of being plugged with the connector, a plurality of clamping bulges distributed along the circumferential direction are arranged on the side wall of the connector, a plurality of clamping grooves matched with the clamping bulges are axially arranged at the butt joint end of the connection pipe, and the clamping bulges are clamped in the clamping grooves. The outer wall of the butt joint end of the connecting pipe is further sleeved with a spring ring, the spring ring is located outside the clamping groove, and the clamping protrusion can open the spring ring when passing through the spring ring. By designing the clamping protrusions distributed in the circumferential direction and the clamping grooves matched with the clamping protrusions, rapid insertion and disconnection between the connector and the connecting pipe are achieved, the connecting efficiency is improved, the design of the spring rings enables the clamping protrusions to be locked in place after being inserted into the clamping grooves, connection disengagement caused by vibration or accidental pulling is prevented, and the stability and reliability of connection are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of mechanical design, and more specifically to a quick-connect plug assembly. Background Art

[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.

[0003] In traditional quick-connect plug assembly designs, the connection between the connector and the tube often relies on a simple plug-in mechanism. This connection method may not be stable enough during the connection process without additional locking or guiding mechanisms. In addition, the connector and the tube need to be aligned during plugging, and blind plugging cannot be achieved in poor visibility.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a quick-connect plug assembly.

[0006] In order to solve the above technical problems, the utility model provides a quick-connect plug assembly, including a connector and a connecting pipe that can be plugged into the connector, the side wall of the connector is provided with a plurality of circumferentially distributed latching protrusions, the butt end of the connecting pipe is axially provided with a plurality of latching grooves matching the latching protrusions, the latching protrusions can be inserted into the latching grooves, the outer wall of the butt end of the connecting pipe is also covered with a spring ring, the spring ring is located outside the latching groove, and the latching protrusion can open the spring ring when passing through the spring ring.

[0007] Preferably, the locking protrusion has two guide surfaces arranged opposite to each other, and when the locking protrusion is inserted into or pulled out of the locking slot, the guide surfaces contact the spring ring and spread the spring ring.

[0008] Preferably, the slot opening is a trumpet-shaped guide opening.

[0009] Preferably, a channel is axially opened inside the connector, and at least one circle of first sealing ring is circumferentially arranged on the outer wall of the connector. When the quick-connect plug assembly is in an inserted state, the outer wall of the connector and the inner wall of the connecting pipe are sealed by the first sealing ring.

[0010] Preferably, the connector comprises a first connecting section, a plurality of water outlet holes are arranged on the side wall of the first connecting section, the inner wall of the connecting pipe has a circle of convex rings, the center position of the convex rings is a through hole, and when the quick-connect plug assembly is in an inserted state, the first connecting section passes through the through hole.

[0011] Preferably, the joint also includes a second connecting section connected to the first connecting section, a third connecting section connected to the second connecting section, and a fourth connecting section connected to the third connecting section, the outer wall of the third connecting section is provided with at least one first mounting groove along the circumferential direction, the first sealing ring is installed in the first mounting groove, and the clamping protrusion is provided on the outer wall of the third connecting section.

[0012] Preferably, the diameter of the second connecting section is smaller than the diameter of the third connecting section and larger than the diameter of the first connecting section, and the outer wall of the second connecting section is circumferentially provided with at least one second mounting groove, and a second sealing ring is installed in the second mounting groove.

[0013] Preferably, the diameter of the fourth connecting section is smaller than that of the third connecting section, and the fourth connecting section is used to communicate with a water pipe.

[0014] Preferably, the other end of the connecting pipe away from the butt end is provided with a threaded section, and the outer wall of the threaded section is provided with butt threads.

[0015] By means of the above technical solution, the beneficial effects of the utility model are as follows:

[0016] The quick-connect plug assembly of the utility model realizes the rapid connection and disconnection between the connector and the pipe by designing the circumferentially distributed convex and matching groove, thereby improving the connection efficiency. The design of the spring ring enables the convex to be locked in place after being inserted into the groove, preventing the connection from falling off due to vibration or accidental pulling, thereby enhancing the stability and reliability of the connection. In addition, when the pressure in the pipe exceeds the safety threshold, the convex can open the spring ring to separate the connector from the pipe, thereby preventing damage caused by excessive pressure.

[0017] The design of the trumpet-shaped guide opening of the utility model helps to guide the plug to be correctly aligned and inserted into the connecting pipe, so that accurate connection can be achieved even in the case of poor sight or inability to directly see the interface.

[0018] The first sealing ring of the utility model is tightly attached between the outer wall of the joint and the inner wall of the pipe through its elastic deformation to form a sealing layer, thereby effectively preventing fluid leakage.

[0019] The utility model also provides a second connecting section and a third connecting section with different diameters to adapt to connecting pipes with different diameters, thereby providing better adaptability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the quick-connect plug assembly of the utility model when it is not plugged in.

[0021] Figure 2 The utility model is a schematic cross-sectional structure diagram of the quick-connect plug assembly when not plugged in.

[0022] Figure 3 It is a structural schematic diagram of the connecting pipe of the utility model.

[0023] Figure 4 It is a structural schematic diagram of a joint of the utility model.

[0024] Figure 5 The utility model is a schematic structural diagram of the quick-connect plug assembly when plugged in.

[0025] Figure 6 The utility model is a schematic diagram of the cross-sectional structure of the quick-connect plug assembly when plugged in.

[0026] Among them: 1. connecting pipe; 2. joint; 11. spring ring; 12. slot; 13. threaded section; 14. guide port; 15. convex ring; 16. through hole; 21. fourth connecting section; 22. third connecting section; 23. second connecting section; 24. first sealing ring; 25. convex; 26. second sealing ring; 27. first connecting section; 28. water outlet; 29. ​​channel; 221. first installation groove; 231. second installation groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0029] like Figure 1-6As shown, the utility model provides a quick-connect plug assembly, including a connector 2 and a connecting pipe 1 that can be plugged into the connector 2, a plurality of circumferentially distributed locking protrusions 25 are arranged on the side wall of the connector 2, a plurality of slots 12 matching the locking protrusions 25 are axially opened at the butt end of the connecting pipe 1, the locking protrusions 25 can be inserted into the slots 12, a spring ring 11 is also sleeved on the outer wall of the butt end of the connecting pipe 1, the spring ring 11 is located outside the slot 12, the locking protrusion 25 has two guide surfaces arranged opposite to each other, when the locking protrusion 25 is inserted into or pulled out of the slot 12, the guide surfaces contact the spring ring 11 and open the spring ring 11. The quick-connect plug assembly realizes the rapid connection and disconnection between the connector 2 and the connecting pipe 1 by designing the circumferentially distributed latching protrusions 25 and the matching latching grooves 12, thereby improving the connection efficiency. The design of the spring coil 11 enables the latching protrusion 25 to be locked in place after being inserted into the latching groove 12, thereby preventing the connection from falling off due to vibration or accidental pulling, and enhancing the stability and reliability of the connection. In addition, when the pressure in the connecting pipe 1 exceeds the safety threshold, the latching protrusion 25 can open the spring coil 11 to disengage the connector 2 from the connecting pipe 1, thereby preventing damage caused by excessive pressure. In a preferred embodiment, the notch of the latching groove 12 is a trumpet-shaped guide opening 14. This design helps to guide the plug to correctly align and insert into the connecting pipe 1, and can achieve accurate connection even in the case of poor visibility or inability to directly see the interface.

[0030] like Figure 2As shown, a channel 29 is axially formed in the joint 2 along its inner side. At least one circumferential first sealing ring 24 is provided on the outer wall of the joint 2. When the quick-connect plug assembly is in the inserted state, the outer wall of the joint 2 and the inner wall of the connecting pipe 1 are sealed by the first sealing ring 24. The first sealing ring 24 forms a sealing layer by elastically deforming and closely adhering between the outer wall of the joint 2 and the inner wall of the connecting pipe 1, effectively preventing fluid leakage. The joint 2 includes a first connecting section 27. A plurality of water outlet holes 28 are provided on the side wall of the first connecting section 27. The inner wall of the connecting pipe 1 has a circumferential convex ring 15, and the center position of the convex ring 15 is a through hole 16. When the quick-connect plug assembly is in the inserted state, the first connecting section 27 passes through the through hole 16. The joint 2 further includes a second connecting section 23 connected to the first connecting section 27, a third connecting section 22 connected to the second connecting section 23, and a fourth connecting section 21 connected to the third connecting section 22. At least one first installation groove 221 is provided on the outer wall of the third connecting section 22 in the circumferential direction, and the first sealing ring 24 is installed in the first installation groove 221. The clamping projection 25 is provided on the outer wall of the third connecting section 22. The diameter of the second connecting section 23 is smaller than that of the third connecting section 22 and larger than that of the first connecting section 27. At least one second installation groove 231 is provided on the outer wall of the second connecting section 23 in the circumferential direction, and a second sealing ring 26 is installed in the second installation groove 231. The diameter of the fourth connecting section 21 is smaller than that of the third connecting section 22. The fourth connecting section 21 is used to communicate with a water pipe. The other end of the connecting pipe 1 away from the docking end is provided with a threaded section 13, and a docking thread is provided on the outer wall of the threaded section 13. The diameters of the second connecting section 23 and the third connecting section 22 are different to adapt to connecting pipes 1 of different pipe diameters, providing better adaptability and flexibility.

[0031] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A quick-connect plug assembly, characterized in that: It includes a joint and a pipe that can be plugged into the joint. The side wall of the joint is provided with a plurality of circumferentially distributed latching protrusions, the butt end of the pipe is axially provided with a plurality of slots matching the latching protrusions, the latching protrusions can be inserted into the slots, the outer wall of the butt end of the pipe is also covered with a spring ring, the spring ring is located outside the slots, and the latching protrusions can open the spring ring when passing through the spring ring.

2. The quick-connect plug assembly according to claim 1, characterized in that: The clamping protrusion has two guide surfaces arranged opposite to each other. When the clamping protrusion is inserted into or pulled out of the clamping slot, the guide surfaces contact the spring ring and spread the spring ring.

3. The quick-connect plug assembly according to claim 1, characterized in that: The notch of the clamping slot is a trumpet-shaped guide opening.

4. The quick-connect plug assembly according to claim 1, characterized in that: A channel is axially provided inside the joint, and at least one circle of first sealing ring is circumferentially provided on the outer wall of the joint. When the quick-connect plug assembly is in an inserted state, the outer wall of the joint and the inner wall of the connecting pipe are sealed by the first sealing ring.

5. The quick-connect plug assembly according to claim 4, characterized in that: The joint comprises a first connecting section, and a plurality of water outlet holes are arranged on the side wall of the first connecting section. The inner wall of the pipe is provided with a convex ring, the center of the convex ring is a through hole, and when the quick-connect plug assembly is in the plugged state, the first connecting section passes through the through hole.

6. The quick-connect plug assembly according to claim 5, characterized in that: The joint also includes a second connecting section connected to the first connecting section, a third connecting section connected to the second connecting section, and a fourth connecting section connected to the third connecting section. The outer wall of the third connecting section is circumferentially provided with at least one first mounting groove, the first sealing ring is installed in the first mounting groove, and the clamping protrusion is provided on the outer wall of the third connecting section.

7. The quick-connect plug assembly according to claim 6, characterized in that: The diameter of the second connecting section is smaller than the diameter of the third connecting section and larger than the diameter of the first connecting section. The outer wall of the second connecting section is provided with at least one second installation groove along the circumferential direction, and a second sealing ring is installed in the second installation groove.

8. The quick-connect plug assembly according to claim 7, characterized in that: The diameter of the fourth connecting section is smaller than that of the third connecting section, and the fourth connecting section is used to be connected to a water pipe.

9. The quick-connect plug assembly according to claim 1, characterized in that: The other end of the connecting pipe away from the butt end is provided with a threaded section, and the outer wall of the threaded section is provided with butt threads.

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