Anti-corrosion automobile door lock pull rod

By incorporating a housing, connecting rod, retaining ring, and spring within the car door lock lever, the problem of poor connection between the main lever and the spring is solved, achieving effective buffering protection and corrosion resistance, thus adapting to the usage needs of different vehicles.

CN223794016UActive Publication Date: 2026-01-13WEIHAI YOUAN AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520120418.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-13
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

In existing car door lock levers, there is a lack of contact connection structure between the main rod and the spring, resulting in limited spring buffering effect and affecting practicality.

Method used

A corrosion-resistant car door lock lever has been designed. By setting up a shell, connecting rod, retaining ring and spring, the lever and spring are effectively connected. The spring's buffering effect is enhanced, and the lever body is protected by an anti-corrosion layer, making it suitable for the use needs of different vehicles.

Benefits of technology

It achieves effective cushioning protection for the pull rod during movement, enhances its practicality, and improves the corrosion resistance of the pull rod through the anti-corrosion layer.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223794016U_ABST
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Abstract

The utility model relates to the field of automobile door locks, and discloses an anti-corrosion automobile door lock pull rod which comprises a first rod body, a protection mechanism is arranged on the right side of the first rod body, a second rod body is arranged on the right side of the protection mechanism, and gaskets are arranged between the first rod body and the protection mechanism and between the second rod body and the protection mechanism. The outer portions of the first rod body and the second rod body are each provided with an anti-corrosion layer, the protection mechanism comprises a shell, the middle of the shell penetrates through and is slidably connected with a connecting rod, the middle of the outer wall of the connecting rod is fixedly connected with a baffle ring, and the baffle ring is slidably connected with the shell. Springs are fixedly connected between the left side and the right side of the baffle ring and the inner wall of the shell. According to the utility model, the shell, the connecting rod, the baffle ring, the spring and other parts are matched with each other, so that the pull rod and the spring can be connected and interacted with each other, and the spring can effectively buffer and protect the pull rod, and is more practical.
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Description

Technical Field

[0001] This utility model relates to the field of automotive door locks, and in particular to a corrosion-resistant automotive door lock lever. Background Technology

[0002] A car door lock lever is an important component used to control the locking and unlocking mechanism of a car door. It is usually connected to the door latch and the door lock button to ensure that the car door can work properly when the owner or passenger presses the lock or unlock button.

[0003] A search revealed Chinese Patent Publication No. CN216921740U, which discloses a corrosion-resistant car door lock lever. The lever includes a main rod with a first threaded groove on its left side surface and a connecting block welded to its right side. A connecting hole is embedded in the center of the connecting block. The main rod is movably connected to an outer sleeve, while the sleeve is fixedly connected to an outer corrosion-resistant pad. The inner side of the sleeve has a main rod connection port for connection with the main rod. This invention overcomes the shortcomings of existing technologies. By incorporating a sleeve and a spring, the sleeve prevents the internal spring from slipping out during use. The spring's elasticity and extension provide effective cushioning during the main rod's movement. When the door lock is opened, the spring compresses a stop on one side of the sleeve for cushioning. When the door lock is closed, the spring rebounds to reset, increasing elasticity and cushioning force and preventing damage to the door lock latch due to excessive stiffness during opening and closing.

[0004] Although the above-mentioned device allows the main rod to switch positions during movement by setting up the cooperation between components such as sleeves and springs, there is no contact connection structure between the main rod and the spring. This makes it difficult for the main rod to drive the spring during movement, resulting in limited buffering effect of the spring on the main rod and making it impractical. To address this issue, a corrosion-resistant automotive door lock lever is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a corrosion-resistant car door lock lever, which aims to improve the existing technology where there is no contact connection between the main rod and the spring. This makes it difficult for the main rod to drive the spring when it moves, resulting in limited buffering effect of the spring on the main rod and making it impractical.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a corrosion-resistant car door lock lever, comprising a first lever body, a protective mechanism provided on the right side of the first lever body, a second lever body provided on the right side of the protective mechanism, a washer provided between the first and second lever bodies and the protective mechanism, an anti-corrosion layer provided on the exterior of the first and second lever bodies, the protective mechanism comprising a housing, a connecting rod slidably connected through the middle of the housing, a retaining ring fixedly connected to the middle of the outer wall of the connecting rod, the retaining ring slidably connected to the housing, and springs fixedly connected between the left and right sides of the retaining ring and the inner wall of the housing.

[0007] As a further description of the above technical solution:

[0008] The connecting rod has fixing grooves on both the left and right sides.

[0009] As a further description of the above technical solution:

[0010] The left side of the first rod is provided with a spiral pattern.

[0011] As a further description of the above technical solution:

[0012] The right end of the first rod is fixedly connected to a stud, which is threadedly connected to the fixing groove located on the left side.

[0013] As a further description of the above technical solution:

[0014] A hook is provided at the right end of the second rod.

[0015] As a further description of the above technical solution:

[0016] The left end of the second rod is fixedly connected to the second stud, which is threadedly connected to the fixing groove located on the right side.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by setting up the cooperation between components such as the outer shell, connecting rod, retaining ring and spring, the pull rod and spring can be connected to each other and interact with each other, so that the spring can effectively buffer and protect the pull rod, making it more practical.

[0019] 2. In this utility model, by setting the connecting rod, fixing groove and the first rod body, the first stud and the second rod body, the second stud, the protective component can be connected to different rod bodies to meet the usage needs of different vehicles, making it more practical. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall three-dimensional structure of a corrosion-resistant car door lock lever proposed in this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of a corrosion-resistant automotive door lock lever proposed in this utility model.

[0022] Figure 3 This is a three-dimensional structural diagram showing the disassembled protective mechanism of a corrosion-resistant automotive door lock lever proposed in this utility model;

[0023] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the first rod of a corrosion-resistant automotive door lock lever proposed in this utility model.

[0024] Legend:

[0025] 1. Rod No. 1; 2. Rod No. 2; 3. Protective mechanism; 4. Washer; 5. Anti-corrosion layer; 31. Outer shell; 32. Connecting rod; 33. Spring; 321. Fixing groove; 322. Retaining ring; 11. Spiral pattern; 12. Stud No. 1; 21. Hook; 22. Stud No. 2. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 and Figure 4 This utility model provides an embodiment of a corrosion-resistant car door lock pull rod, comprising a first rod body 1, which together with a second rod body 2 and a connecting rod 32 forms a pull rod. A protective mechanism 3 is provided on the right side of the first rod body 1, which is used to buffer and protect the pull rod during use. A second rod body 2 is provided on the right side of the protective mechanism 3, which is used to cooperate with the first rod body 1. A washer 4, which may be made of rubber, is provided between the first rod body 1 or the second rod body 2 and the protective mechanism 3 to prevent corrosion at the connection between the first rod body 1 or the second rod body 2 and the connecting rod 32. An anti-corrosion layer 5 is provided on the outside of the first rod body 1 and the second rod body 2 for corrosion protection of the car door lock pull rod. It may be a galvanized layer or a polymer coating. The shape of the first rod body 1 and the second rod body 2 can be changed according to actual needs.

[0028] like Figure 2 - Figure 3As shown, the protective mechanism 3 includes a housing 31, which is used to connect various components. A connecting rod 32 is slidably connected through the middle of the housing 31, which is used to connect the first rod 1 and the second rod 2. A retaining ring 322 is fixedly connected to the middle of the outer wall of the connecting rod 32, which is used to connect the connecting rod 32 and the spring 33. The retaining ring 322 is slidably connected to the housing 31. Springs 33 are fixedly connected between the left and right sides of the retaining ring 322 and the inner wall of the housing 31, which are used to buffer and protect the rod when it is in use. Fixing grooves 321 are opened on the left and right sides of the connecting rod 32, which are used to fix the first rod 1 and the second rod 2.

[0029] Furthermore, the left side of the first rod 1 is provided with a spiral thread 11, which is used to cooperate with the installation of the entire pull rod. The right end of the first rod 1 is fixedly connected with a stud 12, which is used to cooperate with the connection between the first rod 1 and the protection mechanism 3. The stud 12 is threadedly connected to the fixing groove 321 located on the left side. The right end of the second rod 2 is provided with a hook 21, which is used to cooperate with the fixing of the entire pull rod. The left end of the second rod 2 is fixedly connected with a stud 22, which is used to cooperate with the connection between the stud 22 and the protection mechanism 3. The second rod 2 is threadedly connected to the fixing groove 321 located on the right side.

[0030] Working principle: First, tighten the No. 1 stud 12 on rod 1 and the No. 2 stud 22 on rod 2 to the fixing grooves 321 at both ends of the connecting rod 32, so that rod 1, connecting rod 32, and rod 2 form a door lock pull rod. When installing rod 1 and rod 2, washers 4 need to be placed between rod 1 and housing 31 and between rod 2 and housing 31. After the pull rod is assembled, connect the hook 21 on rod 2 to the car door lock, thereby fixing one end of the pull rod. Then set rod 1... Once the threaded end is installed, the door lock lever can be installed. When the lever is pulled, the connecting rod 32 will move, and the retaining ring 322 on the connecting rod 32 will also move, causing one side of the spring 33 inside the housing 31 to be compressed and the other side of the spring 33 to be stretched. When the lever is released, the compressed spring 33 and the pulled-down spring 33 will return to their original positions, thereby driving the retaining ring 322. The connecting rod 32 connected to the retaining ring 322 will then drive the entire lever, thus providing effective buffer protection for the lever during use.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-corrosion type automobile door lock pull rod comprising a first rod body (1), characterized in that: The right side of the first rod body (1) is provided with a protection mechanism (3), the right side of the protection mechanism (3) is provided with a second rod body (2), the first rod body (1) and the second rod body (2) and the protection mechanism (3) are provided with a gasket (4) in common, the outside of the first rod body (1) and the second rod body (2) is provided with an anticorrosive layer (5), the protection mechanism (3) comprises an outer shell (31), the middle part of the outer shell (31) is penetrated and is slidably connected with a connecting rod (32), the outer wall middle part of the connecting rod (32) is fixedly connected with a baffle ring (322), the baffle ring (322) is slidably connected with the outer shell (31), the left and right sides of the baffle ring (322) and the inner wall of the outer shell (31) are fixedly connected with springs (33).

2. The anti-corrosion type automobile door lock pull rod according to claim 1, characterized in that: The left and right sides of the connecting rod (32) are provided with fixed grooves (321).

3. The anti-corrosion type automobile door lock pull rod according to claim 1, characterized in that: The left side of the first rod body (1) is provided with a spiral thread (11).

4. The anti-corrosion type automobile door lock pull rod according to claim 2, characterized in that: The right end of the first rod body (1) is fixedly connected with a first threaded rod (12), the first threaded rod (12) is screw connected with the fixed groove (321) located on the left side.

5. The anti-corrosion type automobile door lock pull rod according to claim 1, characterized in that: The right end of the second rod body (2) is provided with a hook (21).

6. The anti-corrosion type automobile door lock pull rod according to claim 2, characterized in that: The left end of the second rod body (2) is fixedly connected with a second threaded rod (22), the second threaded rod (22) is screw connected with the fixed groove (321) located on the right side.

Citation Information

Patent Citations

  • Anti-corrosion automobile door lock pull rod

    CN216921740U