A water pipe quick connector

Abstract

A kind of water pipe quick plug connector, one end of elbow main body is provided with external thread structure, the other end is connected opening inside clamping has check ring, check ring peripheral surface outer side wall is sequentially provided with inward recessed clamping groove and extends to the clamping guide inclined surface of check ring end face from outside to inside, so that the outer diameter of the outer end of check ring provided with clamping guide inclined surface is less than its main body outer diameter, the inner side of check ring clamping has sealing ring located in the opening inner side of elbow main body, the inner side wall of another side of sealing ring of elbow main body is provided with annular support boss structure, check ring and support boss structure form clamping fixed to sealing ring.The utility model can realize the fixation of shell and check ring without welding, not only meet the fixed connection strength of sealing ring, but also reduce energy consumption and cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive cooling system technology, specifically a quick-connect water pipe connector. Background Technology

[0002] With the diversification of power sources in new energy vehicles, the number of vehicle parts is increasing, leading to less assembly space. To address space constraints and reduce assembly time, quick-connect water pipe fittings are becoming increasingly common in vehicles. The quick-connect fitting retainer ring primarily serves to fix the sealing ring. A lower-cost method is to injection mold the fitting housing and retainer ring as a single piece. However, due to the influence of the injection mold slider structure, there will be a mold gap on the inner side of the one-piece housing, affecting the joint seal and causing leakage. Currently, the industry generally uses welding between the retainer ring and the housing, but this also has disadvantages. Welded structures require specialized equipment, adding extra processes and energy consumption, which increases the cost of the fitting. Welded structures generally have welding overflow, which affects the sealing performance of the sealing ring and causes leakage after the assembly is installed in the vehicle. Utility Model Content

[0003] To address the aforementioned issues, the purpose of this invention is to provide a quick-connect water pipe connector that, through structural design, allows for the fixation of the housing and retaining ring without welding. This not only satisfies the required strength for the fixed connection but also reduces energy consumption and lowers costs.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a quick-connect water pipe connector, comprising a bent pipe body, one end of which is provided with an external thread structure, and the other end is connected to an opening with a retaining ring inside. The outer wall of the retaining ring is provided with an inwardly recessed groove and an insertion guide slope extending to the end face of the retaining ring, such that the outer diameter of the outer end of the retaining ring with the insertion guide slope is smaller than the outer diameter of its body. A sealing ring is attached to the inner side of the retaining ring and located inside the opening of the bent pipe body. The inner wall of the bent pipe body on the other side of the sealing ring is provided with an annular support boss structure. The retaining ring and the support boss structure clamp and fix the sealing ring.

[0005] Furthermore, it also includes a U-shaped pipe end clip. The side wall of the bent pipe body outside the retaining ring is symmetrically provided with long strip-shaped clip insertion slots. The two sides of the pipe end clip are respectively clipped into the clip insertion slots and located inside the opening of the bent pipe body. The pipe end clip is perpendicular to the opening of the bent pipe body.

[0006] Furthermore, the inner wall of the connection opening of the bent pipe body is provided with multiple limiting grooves arranged along the axis.

[0007] Furthermore, both ends of the pipe clamp are bent to the same side to form a limiting elbow. The middle part of the insertion slot of each clamp is provided with an elbow groove that is recessed into the side wall of the bent pipe body, so that when the pipe clamp is half pulled out, the limiting elbow is located in the elbow groove.

[0008] Furthermore, triangular plates are provided at the front and rear of the limiting elbow when the pipe is clamped, and the triangular plates are fixed to the outer wall of the connecting opening of the elbow body.

[0009] Furthermore, the outer end of the external thread structure is provided with an annular limiting ring that protrudes from the main body of the bent pipe.

[0010] Furthermore, the inner wall of the retaining ring is uniformly provided with multiple inwardly recessed arc-shaped step structures.

[0011] Furthermore, the main body of the bent pipe is integrally molded from plastic.

[0012] With the above configuration, the retaining ring and supporting boss structure of this utility model clamp and fix the sealing ring. The circumferential surface of the retaining ring is provided with an inwardly recessed groove and an insertion guide slope extending to the end face of the retaining ring. The outer diameter of the outer end of the retaining ring with the insertion guide slope is smaller than the outer diameter of its main body, which facilitates the insertion of the retaining ring into the sealing ring during installation. This achieves an interference fit between the retaining ring and the main body of the bend, ensuring connection strength and sealing performance of the joint assembly. It is not only convenient and quick to assemble, but also increases the contact area after insertion by contacting the end face of the sealing ring, thus forming a good clamping effect on the sealing ring. This makes the overall sealing of the sealing ring more uniform and the sealing performance better. This utility model can fix the shell and the retaining ring without welding, which not only meets the fixed connection strength of the sealing ring, but also reduces energy consumption and costs. Attached Figure Description

[0013] The present invention will now be further described with reference to the accompanying drawings.

[0014] Figure 1 This is a front-view three-dimensional structural diagram of the present invention; Figure 2 This is a rear-view three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the vertical cross-sectional structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the retaining ring and sealing ring of this utility model; Figure 5 This is a schematic diagram of the main structure of the retaining ring and sealing ring of this utility model. Detailed Implementation

[0015] like Figure 1-5As shown, a quick-connect fitting for water pipes includes a bent pipe body 1. One end of the bent pipe body 1 is provided with an external thread structure 2, and the other end is connected to the inner side of the opening with a retaining ring 3. The outer wall of the retaining ring 3 is provided with an inwardly recessed groove 301 and an insertion guide slope 302 extending to the end face of the retaining ring 3, so that the outer diameter of the outer end of the retaining ring 3 with the insertion guide slope 302 is smaller than the outer diameter of its body. This facilitates the insertion of the retaining ring 3 into the connection opening through the insertion guide slope 302. The shape of the groove in the connection opening for inserting the retaining ring 3 is completely matched with the retaining ring 3. The inner side of the retaining ring 3 is fitted with a sealing ring 4 located inside the opening of the bent pipe body 1. The other side of the sealing ring 4 is provided with an annular support boss structure 5 on the inner wall of the bent pipe body 1. The retaining ring 3 and the support boss structure 5 clamp and fix the sealing ring 4.

[0016] In addition, to facilitate the connection of the pipe fitting to the pipe body 1, a U-shaped pipe clamp 6 is also included. The side wall of the pipe body 1 outside the retaining ring 3 is symmetrically provided with a long strip-shaped clamp insertion groove 7. The two sides of the pipe clamp 6 are respectively clamped in the clamp insertion groove 7 and located in the opening of the pipe body 1. The pipe clamp 6 is perpendicular to the opening of the pipe body 1. The two ends of the pipe clamp 6 are bent to the same side to form a limiting elbow 9. The middle part of the clamp insertion groove 7 on each side is respectively provided with an elbow groove 10 that is recessed into the side wall of the pipe body 1. When the pipe clamp 6 is half pulled out, the limiting elbow 9 is located in the elbow groove 10. When the pipe clamp 6 is clamped, the limiting elbow 9 is provided with a triangular plate 11 at the front and rear. The triangular plate 11 is fixed to the outer side wall of the connection opening of the pipe body 1. The inserted pipe fitting can be clamped by the pipe clamp 6.

[0017] The inner wall of the connection opening of the bend body 1 is provided with multiple limiting grooves 8 arranged along the axis, which facilitates the insertion of the pipe fitting and limits its position, preventing the pipe fitting from rotating in the connection opening of the bend body 1. The outer end of the external thread structure 2 is provided with an annular limiting ring 12 that protrudes from the body of the bend body 1. The inner wall of the retaining ring 3 is provided with multiple inwardly recessed arc-shaped step structures 13, making the retaining ring 3 less prone to deformation. The bend body 1 is integrally molded from plastic.

[0018] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A quick-connect fitting for water pipes, comprising a bent pipe body (1), characterized in that: One end of the bent pipe body (1) is provided with an external thread structure (2), and the other end is connected to the inner side of the opening and a retaining ring (3) is attached. The outer side of the retaining ring (3) is provided with an inwardly recessed groove (301) and an insertion guide slope (302) extending to the end face of the retaining ring (3) in sequence from the outside to the inside, so that the outer diameter of the outer end of the retaining ring (3) with the insertion guide slope (302) is smaller than the outer diameter of its body. The inner side of the retaining ring (3) is attached with a sealing ring (4) located inside the opening of the bent pipe body (1). The inner side of the other side of the sealing ring (4) is provided with an annular support boss structure (5). The retaining ring (3) and the support boss structure (5) clamp and fix the sealing ring (4).

2. The quick-connect fitting for water pipes as described in claim 1, characterized in that: It also includes a U-shaped pipe opening clip (6), and the side wall of the bent pipe body (1) outside the retaining ring (3) is symmetrically provided with a long strip-shaped clip insertion groove (7). The two sides of the pipe opening clip (6) are respectively inserted into the clip insertion groove (7) and located in the opening of the bent pipe body (1). The pipe opening clip (6) is perpendicular to the opening of the bent pipe body (1).

3. A quick-connect fitting for water pipes as described in claim 1, characterized in that: The inner wall of the connection opening of the bent pipe body (1) is provided with multiple limiting grooves (8) arranged along the axis.

4. A quick-connect fitting for water pipes as described in claim 2, characterized in that: The two ends of the pipe clamp (6) are bent to the same side to form a limiting elbow (9). The middle part of the clamp insertion groove (7) on each side is provided with an elbow groove (10) that is recessed into the side wall of the pipe body (1). When the pipe clamp (6) is half pulled out, the limiting elbow (9) is located in the elbow groove (10).

5. A quick-connect fitting for water pipes as described in claim 4, characterized in that: Triangular plates (11) are provided at the front and back of the limiting elbow (9) in the clamped state of the pipe opening (6). The triangular plates (11) are fixed on the outer wall of the connecting opening of the elbow body (1).

6. A quick-connect fitting for water pipes as described in claim 1, characterized in that: The outer end of the external thread structure (2) is provided with an annular limiting ring (12) that protrudes from the body of the bent pipe (1).

7. A quick-connect fitting for water pipes as described in claim 1, characterized in that: The inner wall of the retaining ring (3) is uniformly provided with multiple inwardly recessed arc-shaped step structures (13).

8. A quick-connect fitting for water pipes as described in claim 1, characterized in that: The main body of the bent pipe (1) is made of plastic in one piece.

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