PVC water supply pipe connecting assembly
By using a locking seat and sealing gasket in the PVC water supply pipe connection assembly, the problem of limited spring lifespan is solved, achieving better sealing and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN MIAOTING PIPE IND CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
In existing PVC water supply pipe connection assemblies, the springs have a limited lifespan, resulting in poor protective performance.
The first and second PVC water supply pipes are connected and then fixed by the first and second locking seats. A sealing gasket is installed inside the locking seat, which, together with the limiting protrusion and the annular limiting groove, ensures the stability and sealing effect of the locking seat.
It improves the sealing effect between water supply pipes and the stability of the locking seat, and enhances the protective performance of the connection.
Smart Images

Figure CN224214930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVC water supply pipe connection technology, specifically a PVC water supply pipe connection component. Background Technology
[0002] PVC water supply pipes are a type of water supply pipe made from sanitary-grade polyvinyl chloride resin as the main raw material, with the addition of a certain amount of stabilizers, lubricants, fillers, colorants, etc., through extrusion molding by a plastic extruder and injection molding by an injection molding machine, and then through processes such as cooling, curing, shaping, inspection, and packaging.
[0003] A PVC water supply pipe connection assembly, disclosed in publication number CN220506130U, relates to the field of water pipe connector technology. It includes two pipe bodies and several springs. A common connecting sleeve is fitted onto one end of each of the two pipe bodies. A fixing sleeve is provided between the connecting sleeve and the other end of each pipe body. A groove is formed on the outer side of the connecting sleeve, and a protective sleeve is fixedly connected to the groove wall. An inner sleeve is fitted onto the inner side of the protective sleeve. Several shock-absorbing elements are arranged between the inner sleeve and the connecting sleeve, and the springs are located inside the shock-absorbing elements. An edge sleeve is fitted onto the outer side of each of the two fixing sleeves. The edge sleeve is connected to the outer side of the pipe body through a sealing layer. The size of the protective sleeve matches the size of the groove. This design adds an external protective structure to the connection assembly, protecting the spring structure within the assembly and improving its performance.
[0004] Existing technologies add spring structures to improve the protective effect of connection components, but the service life of springs is limited, so the effect of using springs is relatively poor. Therefore, we propose a PVC water supply pipe connection component. Utility Model Content
[0005] The purpose of this invention is to provide a PVC water supply pipe connection assembly to solve the problems in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a PVC water supply pipe connection assembly, including a first PVC water supply pipe and a second PVC water supply pipe. The first PVC water supply pipe has a slot, and the second PVC water supply pipe has a plug that mates with the slot. After the plug of the second PVC water supply pipe is fitted with a first sealing gasket, it is inserted into the slot of the first PVC water supply pipe. After the first PVC water supply pipe and the second PVC water supply pipe are connected, they are fixed by a first locking seat and a second locking seat. A second sealing gasket is installed on the inner side of the first locking seat and the second locking seat.
[0007] Preferably, both the first locking seat and the second locking seat have grooves on their inner sides for installing the second sealing gasket, and the first locking seat and the second locking seat are locked together by locking bolts.
[0008] Preferably, the first locking seat and the second locking seat are provided with limiting protrusions on both sides of the groove, and the first PVC water supply pipe and the second PVC water supply pipe are provided with annular limiting grooves that cooperate with the limiting protrusions.
[0009] Preferably, the second sealing gasket has an annular opening at the location of the first sealing gasket, and the first sealing gasket has a hollow structure inside, with the annular opening communicating with the hollow interface.
[0010] Preferably, the width of the slot is smaller than the width of the plug, and the difference between the widths of the plug and the slot is smaller than the width of the first sealing gasket.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: After the plug of the second PVC water supply pipe is fitted with the first sealing gasket, it is inserted into the slot of the first PVC water supply pipe. After the first PVC water supply pipe and the second PVC water supply pipe are connected, they are fixed by the first locking seat and the second locking seat. The first locking seat and the second locking seat are fitted with the second sealing gasket. The cooperation between the first sealing gasket and the second sealing gasket improves the sealing effect between the water supply pipes. The first locking seat and the second locking seat are provided with limit protrusions on both sides of the groove. The first PVC water supply pipe and the second PVC water supply pipe are provided with annular limit grooves that cooperate with the limit protrusions. The cooperation between the limit protrusions and the annular limit grooves can prevent the locking seat from moving on the water supply pipe, ensure the stability of the locking seat, and further ensure the sealing effect at the connection. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a side view of the present invention;
[0015] Figure 3 This is a cross-sectional view of the present invention;
[0016] Figure 4 This is a structural schematic diagram of the first PVC water supply pipe and the second PVC water supply pipe of this utility model;
[0017] Figure 5 This is a cross-sectional view of the first PVC water supply pipe and the second PVC water supply pipe of this utility model;
[0018] Figure 6 This is a schematic diagram of the structure of the second locking seat and the second sealing gasket of this utility model;
[0019] Figure 7 This is a schematic diagram of the structure of the second locking seat of this utility model;
[0020] Figure 8 This is a schematic diagram of the structure of the second sealing gasket of this utility model.
[0021] In the diagram: 1. First PVC water supply pipe; 2. Second PVC water supply pipe; 3. First locking seat; 4. Second locking seat; 5. Locking bolt; 6. First sealing gasket; 7. Second sealing gasket; 8. Annular limiting groove; 11. Slot; 21. Plug; 41. Groove; 42. Limiting protrusion; 71. Annular opening. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.
[0023] Please see Figure 1-8 In this embodiment of the utility model, a PVC water supply pipe connection assembly includes a first PVC water supply pipe 1 and a second PVC water supply pipe 2. The first PVC water supply pipe 1 has a slot 11, and the second PVC water supply pipe 2 has a plug 21 that mates with the slot 11. After the plug 21 of the second PVC water supply pipe 2 is fitted with a first sealing gasket 6, it is inserted into the slot 11 of the first PVC water supply pipe 1. After the first PVC water supply pipe 1 and the second PVC water supply pipe 2 are connected, they are fixed by a first locking seat 3 and a second locking seat 4. A second sealing gasket 7 is installed on the inner side of the first locking seat 3 and the second locking seat 4. The sealing effect between the water supply pipes is improved by the cooperation of the first sealing gasket and the second sealing gasket.
[0024] The first locking seat 3 and the second locking seat 4 are both provided with grooves 41 for the installation of the second sealing gasket 7. The first locking seat 3 and the second locking seat 4 are locked together by locking bolts 5. The first locking seat 3 and the second locking seat 4 are provided with limiting protrusions 42 on both sides of the grooves 41. The first PVC water supply pipe 1 and the second PVC water supply pipe 2 are both provided with annular limiting grooves 8 that cooperate with the limiting protrusions 42. The cooperation between the limiting protrusions 42 and the annular limiting grooves 8 can prevent the locking seat from moving on the water supply pipe, ensure the stability of the locking seat, and further ensure the sealing effect at the connection.
[0025] The second sealing gasket 7 has an annular opening 71 at the location of the first sealing gasket 6. The first sealing gasket 6 has a hollow structure inside, and the annular opening 71 is connected to the hollow interface. The width of the slot 11 is smaller than the width of the plug 21, and the difference between the widths of the plug 21 and the slot 11 is smaller than the width of the first sealing gasket 6. When locked, the first sealing gasket 6 is in a compressed state, resulting in a better sealing effect.
[0026] The working principle of this utility model is as follows: After the plug 21 of the second PVC water supply pipe 2 is fitted with the first sealing gasket 6, it is inserted into the slot 11 of the first PVC water supply pipe 1. After the first PVC water supply pipe 1 and the second PVC water supply pipe 2 are connected, they are fixed by the first locking seat 3 and the second locking seat 4. The second sealing gasket 7 is installed on the inner side of the first locking seat 3 and the second locking seat 4. The cooperation of the first sealing gasket and the second sealing gasket improves the sealing effect between the water supply pipes. The first locking seat 3 and the second locking seat 4 are provided with limiting protrusions 42 on both sides of the groove 41. The first PVC water supply pipe 1 and the second PVC water supply pipe 2 are provided with annular limiting grooves 8 that cooperate with the limiting protrusions 42. The cooperation of the limiting protrusions 42 and the annular limiting grooves 8 can prevent the locking seat from moving on the water supply pipe, ensure the stability of the locking seat, and further ensure the sealing effect at the connection.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A PVC water supply pipe connection assembly, comprising a first PVC water supply pipe (1) and a second PVC water supply pipe (2), characterized in that: The first PVC water supply pipe (1) has a slot (11), and the second PVC water supply pipe (2) has a plug (21) that mates with the slot (11). After the plug (21) of the second PVC water supply pipe (2) is fitted with a first sealing gasket (6), it is inserted into the slot (11) of the first PVC water supply pipe (1). After the first PVC water supply pipe (1) and the second PVC water supply pipe (2) are connected, they are fixed by a first locking seat (3) and a second locking seat (4). A second sealing gasket (7) is installed on the inner side of the first locking seat (3) and the second locking seat (4).
2. The PVC water supply pipe connection assembly according to claim 1, characterized in that: The first locking seat (3) and the second locking seat (4) are both provided with grooves (41) for the installation of the second sealing gasket (7). The first locking seat (3) and the second locking seat (4) are locked together by locking bolts (5).
3. A PVC water supply pipe connection assembly according to claim 2, characterized in that: The first locking seat (3) and the second locking seat (4) are provided with limiting protrusions (42) on both sides of the groove (41), and the first PVC water supply pipe (1) and the second PVC water supply pipe (2) are provided with annular limiting grooves (8) that cooperate with the limiting protrusions (42).
4. A PVC water supply pipe connection assembly according to claim 1, characterized in that: The second sealing gasket (7) has an annular opening (71) at the location of the first sealing gasket (6). The first sealing gasket (6) has a hollow structure inside, and the annular opening (71) is connected to the hollow interface.
5. A PVC water supply pipe connection assembly according to claim 1, characterized in that: The width of the slot (11) is less than the width of the plug (21), and the difference between the widths of the plug (21) and the slot (11) is less than the width of the first sealing gasket (6).
Citation Information
Patent Citations
PVC water supply pipe connecting assembly
CN220506130U