Injection molding joint for automobile pipe fitting

The injection-molded connector, with its one-piece molding design and internal and external snap-fit ​​structure, solves the problems of cumbersome installation and easy corrosion of traditional connectors, achieving rapid connection, corrosion resistance and sealing, and improving the reliability and safety of automotive piping systems.

CN224120862UActive Publication Date: 2026-04-14芜湖富田电子科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional automotive connectors are cumbersome to install, susceptible to environmental corrosion, and have unstable connections, leading to leaks and safety hazards.

Method used

A one-piece injection-molded connector was designed, featuring an internal and external snap-fit ​​structure and stainless steel connectors, combined with double sealing rings, to provide quick connection and corrosion resistance.

Benefits of technology

It enables quick and secure connection of the connectors, prevents leakage, enhances the reliability and safety of automotive piping systems, reduces maintenance costs, and extends service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224120862U_ABST
    Figure CN224120862U_ABST
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Abstract

The utility model discloses an injection molding joint for an automobile pipe fitting, and relates to the technical field of injection molding joints, the joint comprises a main body and a base body, the middle part of the upper end of the base body is fixedly connected with one end of the main body, an inner clamping part is arranged on the inner wall of one end, fixed with the base body, of the main body, and an outer clamping part is arranged at one end, far away from the base body, of the main body. The main body and the base body are stably connected through the integrally-formed structure, vibration impact in the running process of an automobile can be effectively resisted, and loosening and damage are avoided; the internal and external clamping design increases the connecting area and friction force of the joint and the pipe fitting, and ensures reliable connection; the first sealing ring of the outer clamping part and the second sealing ring at the bottom of the base body form double sealing guarantee, liquid or gas leakage can be effectively prevented, external impurities are prevented from entering, and normal operation of a pipeline system is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding joint technology, specifically an injection molding joint for automotive pipe fittings. Background Technology

[0002] In the booming development of the automotive industry, the automotive piping system, as a key component ensuring the normal operation of various vehicle parts, directly affects the overall safety, stability, and service life of the vehicle. The automotive piping system encompasses several important aspects, including fuel supply, cooling circulation, and braking transmission, and injection-molded connectors, as crucial components connecting different pipe parts, play a vital role in this process.

[0003] However, traditional connectors are cumbersome to install, requiring specialized tools and a long installation time. Furthermore, the components at the installation location are susceptible to corrosion and rust damage from environmental factors such as moisture and salt spray.

[0004] Based on this, an injection-molded connector for automotive pipe fittings is now provided, which can eliminate the drawbacks of existing connectors. Utility Model Content

[0005] The purpose of this utility model is to provide an injection-molded connector for automotive pipe fittings to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An injection-molded connector for automotive pipe fittings includes a main body and a base. The upper middle part of the base is fixedly connected to one end of the main body. An inner snap-fit ​​part is provided on the inner wall of the end of the main body that is fixed to the base. An outer snap-fit ​​part is provided on the end of the main body that is away from the base.

[0008] Preferably, a sealing ring is provided at the outer snap-fit ​​position.

[0009] Preferably, a second sealing ring is provided at the bottom of the substrate.

[0010] Preferably, two connecting parts are symmetrically fixed on both sides of the upper end of the base, and two connectors are symmetrically installed on both sides of the lower end of the base, with each connector corresponding to one connecting part.

[0011] Preferably, the inner wall of the connector is provided with internal threads.

[0012] Preferably, the connector is made of stainless steel.

[0013] Preferably, the main body and the substrate are integrally formed.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses an integrated molding structure to make the main body and the base body firmly connected, which can effectively resist the vibration and impact of the car during driving and avoid loosening and damage; the inner and outer snap-fit ​​design increases the connection area and friction of the joint and the pipe fitting, ensuring reliable connection; the sealing ring one of the outer snap-fit ​​part and the sealing ring two at the bottom of the base body form a double sealing guarantee, which can effectively prevent liquid or gas leakage, block the entry of external impurities, and ensure the normal operation of the pipeline system.

[0016] 2. The internal thread on the inner wall of the connector of this utility model provides a convenient and quick connection method for the installation of the joint. Simply screw a bolt or screw with external threads into the internal thread of the connector to achieve a tight connection between the joint and the fixed component; the stainless steel connector is corrosion-resistant and high-strength, and can adapt to the complex operating environment of automobiles, thereby reducing the maintenance costs and frequency caused by connector problems, improving the safety and reliability of automobiles, extending the service life of the connector and automobile piping system, and enhancing consumers' trust in automobile products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a structural diagram of the bottom position of this utility model.

[0019] Figure 3 This is a structural diagram of the side end position of this utility model.

[0020] Figure reference numerals: 11. Main body; 12. Outer snap-fit ​​part; 13. Sealing ring one; 14. Base; 15. Connecting part; 16. Connecting piece; 17. Inner snap-fit ​​part; 18. Sealing ring two. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figures 1-3 As shown, an injection-molded connector for automotive pipe fittings includes a main body 11 and a base 14. The upper middle part of the base 14 is fixedly connected to one end of the main body 11. An inner snap-fit ​​part 17 is provided on the inner wall of the end of the main body 11 that is fixed to the base 14. An outer snap-fit ​​part 12 is provided on the end of the main body 11 that is away from the base 14.

[0023] In this embodiment, when connected to other automotive pipe fittings, the inner snap-fit ​​part 17 can engage with the outer wall structure of the corresponding pipe fitting, while the outer snap-fit ​​part 12 can cooperate with the inner wall structure of the outer pipe fitting. Through this inner and outer snap-fit ​​method, a quick and stable connection between the connector and the pipe fitting is achieved, ensuring that the pipe fitting and connector will not easily fall off during vehicle operation, thus ensuring the normal operation of the pipeline system.

[0024] In an optional embodiment, a sealing ring 13 is provided at the position of the outer snap-fit ​​portion 12.

[0025] It should be noted that when the connector is connected to the external pipe fitting through the outer clamping part 12, the sealing ring 13 will be squeezed between the outer clamping part 12 and the inner wall of the pipe fitting, filling the tiny gap between the two, effectively preventing liquid or gas from leaking from the connection, thereby ensuring the sealing of the pipeline system and avoiding the decline in vehicle performance or safety hazards caused by leakage.

[0026] In an optional embodiment, a sealing ring 18 is provided at the bottom of the substrate 14.

[0027] It should be noted that when the connector is installed in the corresponding part of the car, the sealing ring 218 will be in close contact with the mounting surface to play a sealing role, preventing external impurities from entering the interior of the connector, and also preventing the medium inside the connector from leaking from the bottom of the base, further enhancing the sealing performance of the entire connector and ensuring the stable operation of the car's pipeline system.

[0028] In an optional embodiment, two connecting portions 15 are symmetrically fixed on both sides of the upper end of the base 14, and two connectors 16 are symmetrically installed on both sides of the lower end of the base 14, with each connector 16 corresponding to one connecting portion 15.

[0029] It should be noted that the connector can be fixedly connected to other components through connector 16 during installation.

[0030] In an optional embodiment, the inner wall of the connector 16 is provided with internal threads.

[0031] It should be noted that the inner wall of the connector 16 is provided with internal threads. This threaded connection method is convenient and quick. Simply screw the bolt or screw with external threads into the internal threads of the connector 16 to achieve a tight connection between the joint and the fixed part.

[0032] In an optional embodiment, the connector 16 is made of stainless steel.

[0033] It should be noted that the connector 16 is made of stainless steel. Stainless steel has good corrosion resistance and mechanical strength, and can adapt to the complex operating environment of automobiles, such as humidity and high temperature. This ensures that the connector 16 will not be damaged by corrosion during long-term use, always maintain reliable connection performance, and extend the service life of the joint.

[0034] In an optional embodiment, the body 11 and the base 14 are integrally formed.

[0035] It should be noted that the injection-molded joint consists of a main body 11 and a base 14, which are integrally molded. This integral molding structure enhances the overall strength and stability of the joint, reduces potential problems such as leakage caused by loosening of component connections, and provides reliable structural support for subsequent connection and sealing functions.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An injection molded fitting for automotive tubing, characterized by, It includes a main body (11) and a base (14). The upper middle part of the base (14) is fixedly connected to one end of the main body (11). The inner wall of the end of the main body (11) that is fixed to the base (14) is provided with an inner snap-fit ​​part (17). The end of the main body (11) away from the base (14) is provided with an outer snap-fit ​​part (12).

2. The injection-molded connector for automotive pipe fittings according to claim 1, characterized in that, A sealing ring (13) is provided at the position of the outer snap-fit ​​part (12).

3. The injection-molded connector for automotive pipe fittings according to claim 1, characterized in that, A sealing ring 2 (18) is provided at the bottom of the substrate (14).

4. The injection-molded connector for automotive pipe fittings according to claim 1, characterized in that, Two connecting parts (15) are symmetrically fixed on both sides of the upper end of the base (14), and two connectors (16) are symmetrically installed on both sides of the lower end of the base (14), with each connector (16) corresponding to one connecting part (15).

5. The injection-molded connector for automotive pipe fittings according to claim 4, characterized in that, The inner wall of the connector (16) is provided with internal threads.

6. The injection-molded connector for automotive pipe fittings according to claim 5, characterized in that, The connector (16) is made of stainless steel.

7. The injection-molded connector for automotive pipe fittings according to claim 1, characterized in that, The main body (11) and the base (14) are integrally formed.