Automobile door lock fastener with shell anti-collision structure
By incorporating anti-collision devices, including anti-collision frames, airbags, and springs, the problem of deformation of the door lock after an impact is solved, ensuring that the door can be opened normally and guaranteeing safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-14
AI Technical Summary
Car door locks are prone to deformation after a heavy impact, which can prevent the doors from opening and hinder the driver's escape.
Anti-collision devices are installed on the side of the locking device, including anti-collision frame, airbag, spring, fixing plate and fixing device. These components disperse and absorb impact force to prevent the locking device from directly contacting the impact force. The elastic reset function of the airbag and spring is used to ensure that the locking device does not deform.
This effectively prevents the locking device from deforming after an impact, ensuring that the door can be opened normally and guaranteeing the driver's safe escape.
Smart Images

Figure CN224120078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of car door locks with an outer shell anti-collision structure, and in particular to a car door lock with an outer shell anti-collision structure. Background Technology
[0002] A car door lock is a technical term; essentially, it's a car door lock controller. It's a control device that provides locking / unlocking pulse current to the door lock actuator. Regardless of the type of door lock actuator, it controls the left and right movement of a linkage by changing the direction of the energized current, thus locking and unlocking the door.
[0003] The inventor discovered during routine use of car door locks that, because the car door locks are installed inside the car door, they may deform after a heavy impact, preventing them from opening. This can result in the car door being unable to open, preventing the driver from escaping from the vehicle and causing problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a car door lock with an anti-collision shell structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a car door lock with an anti-collision shell structure, comprising a lock, an anti-collision device provided on the side of the lock, a fixing device provided on the side of the lock, the anti-collision device comprising an anti-collision frame fixedly connected to the side of the lock, a sponge block fixedly connected inside the anti-collision frame, and a rubber plate fixedly connected to the side of the anti-collision frame.
[0006] The effect achieved by the above components is that, under the action of the anti-collision frame, the impact force of the car door can be dispersed by the anti-collision frame after it is hit, thus preventing the locking device from deforming and becoming unable to open.
[0007] Preferably, an airbag is fixedly connected inside the anti-collision frame, and the airbag is made of deformable rubber.
[0008] The effect achieved by the above components is that, under the action of the airbag, the impact force of the anti-collision frame is dispersed by the airbag after it is subjected to an impact, and the anti-collision frame can also be reset at the same time.
[0009] Preferably, a spring is fixedly connected to the inner wall of the airbag, and the other end of the spring is fixedly connected to the inner wall of the anti-collision frame.
[0010] The effect achieved by the above components is that, under the action of the spring, the airbag can quickly return to its original position after dispersing the impact force.
[0011] Preferably, a fixing plate is fixedly connected to the inner wall of the anti-collision frame, and the fixing plate is disposed on the inner wall of the anti-collision frame.
[0012] The aforementioned components achieve the following effects: Under the action of the fixing plate, the anti-collision frame can quickly recover after deformation, preventing deformation. When the car door is impacted, the locking device will not directly contact the impact force due to the anti-collision frame, thus preventing damage. Under the action of the spring, the airbag can quickly reset after dispersing the impact force. The airbag also disperses the impact force and allows the anti-collision frame to reset. The fixing plate ensures that the anti-collision frame can quickly recover after deformation, preventing deformation and thus achieving the anti-collision function.
[0013] Preferably, the fixing device includes a film fixedly connected to the side of the anti-collision frame, and a thin film is pasted on the side of the film.
[0014] The effect achieved by the above components is that, under the action of the film, the locking device can be initially adhered to the inside of the car door, thereby achieving a fixing effect.
[0015] Preferably, a rectangular plate is fixedly connected to the side of the locking device, a bolt is inserted into the side of the rectangular plate, and a conical block is fixedly connected to one end of the bolt.
[0016] The effect achieved by the above components is that, under the action of the bolts, the locking device can be fixed inside the door, and under the action of the cone block, the bolts can be quickly inserted into the door.
[0017] Preferably, a support rod is fixedly connected to the side of the rectangular plate, and the length of the support rod is the same as the thickness of the anti-collision frame.
[0018] The effect achieved by the above components is that, under the action of the support rod, the anti-collision frame will not deform, thus avoiding the phenomenon that the anti-collision frame fails to achieve anti-collision.
[0019] Preferably, a washer, which is a rubber ring, is fitted onto the surface of the bolt.
[0020] The aforementioned components achieve the following effects: the washers prevent bolt overload; when the locking device needs to be fixed inside the door, the film is peeled off, allowing the adhesive to adhere to the inside of the door; the bolts are then passed through the rectangular plate and quickly screwed into the door through the conical block to secure the locking device; the support rod prevents the anti-collision frame from deforming, thus avoiding the anti-collision frame failing to provide protection; and the washers prevent bolt overload, thereby achieving the desired fixation.
[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0022] In this invention, by setting up an anti-collision device, when the car door is impacted, the locking device will not directly contact the impact force under the action of the anti-collision frame, thus avoiding damage to the locking device. Under the action of the spring, the airbag disperses the impact force and can quickly reset. Under the action of the airbag, when the anti-collision frame is impacted, the impact force is dispersed by the airbag, and the anti-collision frame can also reset. Under the action of the fixing plate, the anti-collision frame can quickly recover after deformation, avoiding the phenomenon of deformation of the anti-collision frame, thus achieving the anti-collision function and solving the problem that the locking device deforms after a heavy impact, causing the car door to be unable to open. Attached Figure Description
[0023] Figure 1 This utility model provides a three-dimensional structural diagram of a car door lock latch with an anti-collision shell structure;
[0024] Figure 2 This utility model provides a schematic diagram of an anti-collision device for a car door lock latch with an anti-collision shell structure;
[0025] Figure 3 This utility model presents a schematic diagram of a fixing device for a car door lock with an anti-collision shell structure.
[0026] Legend: 1. Locking device; 2. Anti-collision device; 21. Anti-collision frame; 22. Airbag; 23. Fixing plate; 24. Spring; 3. Fixing device; 31. Membrane; 32. Rectangular plate; 33. Bolt; 34. Support rod; 35. Washer. Detailed Implementation
[0027] Example 1, as Figure 1-3 As shown, a car door lock latch 1 with an anti-collision shell structure includes a latch 1, an anti-collision device 2 on the side of the latch 1, and a fixing device 3 on the side of the latch 1. The basic working principle of the latch 1 is that after a micro motor is energized, it rotates at high speed. Through a worm gear or gear system, the speed is reduced, and the final output shaft outputs a certain torque and speed. Then, through a connecting rod, it pushes the relevant mechanism to realize the opening and closing function of the car door. When the controller receives the opening and closing signal, the on-board current source supplies power to the motor, and the motor rotation is converted into the linear motion of the latch, thereby completing the opening or closing cycle. The friction pairs of the latch 1 are mainly at the worm gear and worm, and the latch and lock body.
[0028] Reference Figure 2The anti-collision device 2 includes an anti-collision frame 21 fixedly connected to the side of the locking device 1. A sponge block is fixedly connected inside the anti-collision frame 21, and a rubber plate is fixedly connected to the side of the anti-collision frame 21. Under the action of the anti-collision frame 21, the impact force of the door after impact can be dispersed by the anti-collision frame 21, preventing the locking device 1 from deforming and becoming unable to open. An airbag 22 is fixedly connected inside the anti-collision frame 21. The airbag 22 is made of deformable rubber. Under the action of the airbag 22, the impact force of the anti-collision frame 21 is dispersed by the airbag 22, and the anti-collision frame 21 can also be reset. A spring 24 is fixedly connected to the inner wall of the airbag 22, and the other end of the spring 24 is fixedly connected to the inner wall of the anti-collision frame 21. Under the action of the spring 24, the airbag 22 can quickly reset after dispersing the impact force. A fixing plate 23 is fixedly connected to the inner wall of the anti-collision frame 21. The fixing plate 23 is set on the inner wall of the anti-collision frame 21. Under the action of the fixing plate 23, the anti-collision frame 21 can quickly recover after deformation, avoiding the phenomenon of deformation of the anti-collision frame 21. When the car door is impacted, under the action of the anti-collision frame 21, the locking device 1 will not directly contact the impact force, thus avoiding the phenomenon of damage to the locking device 1. Under the action of the spring 24, the airbag 22 can quickly reset after dispersing the impact force. Under the action of the airbag 22, the impact force of the anti-collision frame 21 is dispersed by the airbag 22, and the anti-collision frame 21 can also reset. Under the action of the fixing plate 23, the anti-collision frame 21 can quickly recover after deformation, avoiding the phenomenon of deformation of the anti-collision frame 21, thus achieving the anti-collision function.
[0029] Reference Figure 3The fixing device 3 includes a film fixedly connected to the side of the anti-collision frame 21. A thin film 31 is adhered to the side of the film. Under the action of the film, the locking device 1 can be initially adhered to the inside of the door, thereby achieving the fixing function. A rectangular plate 32 is fixedly connected to the side of the locking device 1. A bolt 33 is inserted into the side of the rectangular plate 32. A conical block is fixedly connected to one end of the bolt 33. Under the action of the bolt 33, the locking device 1 can be fixed to the inside of the door. Under the action of the conical block, the bolt 33 can be quickly inserted into the inside of the door. A support rod 34 is fixedly connected to the side of the rectangular plate 32. The length of the support rod 34 is the same as the thickness of the anti-collision frame 21. Under the action of the support rod 34, the anti-collision frame 21 is fixedly fixed. The frame 21 will not deform, thus preventing the anti-collision frame 21 from failing to achieve its anti-collision function. A washer 35, which is a rubber ring, is fitted on the surface of the bolt 33. Under the action of the washer 35, the bolt 33 will not be overloaded. When it is necessary to fix the locking device 1 inside the car door for use, the film 31 is peeled off, so that the film is stuck to the inside of the car door. The bolt 33 is passed through the rectangular plate 32 and quickly screwed into the inside of the car door through the conical block to fix the locking device 1. Under the action of the support rod 34, the anti-collision frame 21 will not deform, thus preventing the anti-collision frame 21 from failing to achieve its anti-collision function. Under the action of the washer 35, the bolt 33 will not be overloaded, thereby achieving the fixing function.
[0030] Working principle: When a car door lock 1 with an anti-collision shell structure is required, the basic working principle of the lock 1 is that after the micro motor is powered on, it rotates at high speed. Through the worm gear or gear system, the speed is reduced, and finally the output shaft outputs with a certain torque and speed. Then, through the connecting rod, it pushes the relevant mechanism to realize the opening and closing function of the car door. When the controller receives the opening and closing signal, the vehicle current source supplies power to the motor. The rotation of the motor is converted into the linear motion of the lock tongue, thereby completing the opening cycle or closing cycle. The friction pairs of the locking device 1 are mainly at the worm gear and worm, and the bolt and lock body. When the door is impacted, the locking device 1 will not directly contact the impact force under the action of the anti-collision frame 21, thus avoiding damage to the locking device 1. Under the action of the spring 24, the airbag 22 can quickly reset after dispersing the impact force. Under the action of the airbag 22, the impact force of the anti-collision frame 21 is dispersed by the airbag 22, and the anti-collision frame 21 can also reset. Under the action of the fixing plate 23, the anti-collision frame 21 can quickly reset after deformation. The rapid recovery prevents the anti-collision frame 21 from deforming, thus achieving the anti-collision function. When the locking device 1 needs to be fixed inside the car door, the film 31 is peeled off, allowing the film to stick to the inside of the car door. The bolt 33 is passed through the rectangular plate 32 and quickly screwed into the inside of the car door through the conical block to fix the locking device 1. Under the action of the support rod 34, the anti-collision frame 21 will not deform, thus preventing the anti-collision frame 21 from failing to achieve the anti-collision function. Under the action of the washer 35, the bolt 33 will not be overloaded, thus achieving the fixing function.
Claims
1. A car door lock locking device with an outer shell anti-collision structure, comprising a locking device (1), characterized in that: The side of the locking device (1) is provided with an anti-collision device (2), and the side of the locking device (1) is provided with a fixing device (3). The anti-collision device (2) includes an anti-collision frame (21) fixedly connected to the side of the locking device (1). A sponge block is fixedly connected inside the anti-collision frame (21), and a rubber plate is fixedly connected to the side of the anti-collision frame (21).
2. The automotive door lock locking device with an anti-collision shell structure according to claim 1, characterized in that: An airbag (22) is fixedly connected inside the anti-collision frame (21), and the airbag (22) is made of deformable rubber.
3. The automotive door lock locking device with an anti-collision shell structure according to claim 2, characterized in that: A spring (24) is fixedly connected to the inner wall of the airbag (22), and the other end of the spring (24) is fixedly connected to the inner wall of the anti-collision frame (21).
4. The automotive door lock locking device with an anti-collision shell structure according to claim 3, characterized in that: The inner wall of the anti-collision frame (21) is fixedly connected to a fixing plate (23), and the fixing plate (23) is set on the inner wall of the anti-collision frame (21).
5. The automotive door lock locking device with an anti-collision shell structure according to claim 4, characterized in that: The fixing device (3) includes a film fixedly connected to the side of the anti-collision frame (21), and a thin film (31) is pasted on the side of the film.
6. The automotive door lock locking device with an anti-collision shell structure according to claim 5, characterized in that: A rectangular plate (32) is fixedly connected to the side of the locking device (1), and a bolt (33) is inserted into the side of the rectangular plate (32). A conical block is fixedly connected to one end of the bolt (33).
7. The automotive door lock locking device with an anti-collision shell structure according to claim 6, characterized in that: The rectangular plate (32) is fixedly connected to a support rod (34) on its side, and the length of the support rod (34) is the same as the thickness of the anti-collision frame (21).
8. The automotive door lock locking device with an anti-collision shell structure according to claim 7, characterized in that: A washer (35) is fitted on the surface of the bolt (33), and the washer (35) is a rubber ring.