Safe anti-theft automobile door lock
By introducing a support plate, rotating parts, springs, and a motor drive system into the car door lock, the practicality problem of hidden door handles in new energy vehicles is solved, enabling convenient door locking and unlocking control and improving the practicality and stability of the device.
Patent Information
- Application Number
- CN202423235518.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing car door locks are mostly mechanical designs, which cannot meet the needs of new energy vehicles for hidden door handles, reducing the practicality of the device.
The drive system, consisting of components such as support plates, rotating parts, springs, drive assemblies, and motors, allows for remote control of the car doors via mobile phone or touch buttons to lock and open them. The system's stability and practicality are enhanced by the use of limit grooves and limit switches.
It achieves convenient operation and high practicality of door locks for new energy vehicles, improves the safety and stability of the doors, and reduces the difficulty of operation for users.
Smart Images

Figure CN223767321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive technology, and in particular to a secure and anti-theft car door lock. Background Technology
[0002] A car door locking system is a device installed on the door and its pillars that reliably locks the door and uses its internal mechanism to achieve opening and locking functions. It is a very important vehicle accessory. It has a safety protection function, which is to ensure reliable locking of the door during normal use to prevent accidental / unintentional opening, and to ensure that the door can be opened smoothly when needed.
[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: With the rise of new energy vehicles, many cars have begun to use hidden door handles, and some cars have begun to use door handle-less designs. Door handle-less designs unlock through electronic devices, and existing car door locks are mostly mechanical switches, which reduces the practicality of the device. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a secure and anti-theft car door lock.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a safe and anti-theft car door lock, including a support plate, a rotating groove is formed through the side wall of the support plate, a first rotating component is rotatably arranged in the rotating groove, a connecting groove is formed on the first rotating component, a second rotating component is rotatably arranged in the connecting groove, first springs are symmetrically arranged on the side wall of the support plate, the other ends of the two first springs are respectively fixed to the first rotating component and the second rotating component, a rotating block is provided in both the first rotating component and the second rotating component, the rotating block is fixed to the car door frame, and a driving assembly for driving the first rotating component and the second rotating component is provided on the support plate.
[0006] By adopting the above technical solution, when the operator closes the car door, the support plate, the first rotating component, and the second rotating component gradually approach the rotating block, causing the rotating block to abut against the first and second rotating components. This causes the first and second rotating components to rotate away from each other under the action of the rotating block, thus locking the rotating block into the first and second rotating components. At this time, the first and second rotating components rotate towards each other under the action of the first spring, causing their adjacent sidewalls to abut against the outer wall of the rotating block, thereby closing the car door. If the operator needs to open the car door, they must activate the drive assembly. During this process, the drive assembly can be remotely activated via a mobile phone or via a touch button on the car door, thus improving the device's practicality.
[0007] Furthermore, sliding holes are provided on the side walls of both the first and second rotating parts, and two sliding grooves are provided through the upper surface of the support plate. The driving assembly includes two sliding rods respectively disposed in the two sliding grooves, two steel wire ropes respectively fixedly disposed on the bottom surface of the two sliding rods, and a U-shaped piece disposed at the other end of the two steel wire ropes. The U-shaped piece is slidably connected to the two sliding grooves.
[0008] Furthermore, a connecting sleeve is fixedly installed on the side wall of the U-shaped component, a motor is fixedly installed on the side wall of the support plate, and a threaded rod is fixedly installed at the end of the output shaft of the motor, the threaded rod being threadedly connected to the connecting sleeve.
[0009] By adopting the above technical solution, when a worker needs to open the car door, they need to start the motor, which in turn rotates the motor's output shaft. This causes the threaded rod to rotate under the action of the motor's output shaft, which in turn moves the connecting sleeve under the action of the threaded rod. This, in turn, moves the U-shaped component under the action of the connecting sleeve, which in turn moves the wire rope under the action of the U-shaped component. This, in turn, moves the sliding rod under the action of the wire rope, causing the first and second rotating components to rotate in a direction away from each other under the action of the sliding rod. This separates the rotating block from the first and second rotating components. At this point, the worker can open the car door. During this process, the motor can be remotely started via a mobile phone or via a touch button on the car door, thus improving the practicality of the device.
[0010] Furthermore, a limiting groove is formed on the inner wall of the sliding hole, and a limiting block is slidably arranged in the limiting groove, with the limiting block and the sliding rod being fixed to each other.
[0011] By adopting the above technical solution, when the slide bar moves under the action of the wire rope, the limiting block limits the slide bar, thereby reducing the probability of the slide bar separating from the sliding hole under the action of the wire rope, thus improving the stability of the device.
[0012] Furthermore, two first limit switches are symmetrically arranged on the side wall of the support plate. Both first limit switches are electrically connected to the motor. Trigger elements are fixedly arranged on both the first rotating component and the second rotating component. The trigger elements are used to trigger the first limit switches.
[0013] By adopting the above technical solution, when the first rotating component and the second rotating component rotate in a direction away from each other, the trigger component rotates synchronously with the first rotating component and the second rotating component. During this process, when the trigger component comes into contact with the first limit switch, the motor stops rotating, thereby reducing the difficulty for the operator to control the motor to stop and thus reducing the difficulty of the operator's work.
[0014] Furthermore, an installation groove is provided on the side wall of the rotating block, and a second limit switch is provided in the installation groove. The second limit switch is electrically connected to the motor.
[0015] By adopting the above technical solution, when the car door is opened, the rotating block separates from the first rotating component and the second rotating component, and the motor reverses under the action of the second limit switch, thereby reducing the difficulty for the staff to reset the drive component and thus reducing the difficulty of the staff's work.
[0016] Furthermore, a baffle plate is fixedly installed on the U-shaped component, and the end of the wire rope away from the slide bar is fixed to the baffle plate. The diameter of the slide groove is smaller than the diameter of the baffle plate.
[0017] By adopting the above technical solution, the baffle plate reduces the probability of the U-shaped part separating from the slide, thereby improving the stability of the device.
[0018] In summary, this utility model has the following beneficial effects:
[0019] 1. In this application, when the operator closes the car door, the support plate, the first rotating component, and the second rotating component gradually approach the rotating block, causing the rotating block to abut against the first and second rotating components. This causes the first and second rotating components to rotate away from each other under the action of the rotating block, thus locking the rotating block into the first and second rotating components. At this time, the first and second rotating components rotate towards each other under the action of the first spring, causing their adjacent sidewalls to abut against the outer wall of the rotating block, thereby closing the car door. If the operator needs to open the car door, they must activate the drive assembly. During this process, the drive assembly can be remotely activated via a mobile phone or via a touch button on the car door, thus improving the practicality of the device.
[0020] 2. In this application, when a worker needs to open the car door, the worker needs to start the motor, which in turn rotates the motor's output shaft. This causes the threaded rod to rotate under the action of the motor's output shaft, which in turn moves the connecting sleeve under the action of the threaded rod. This causes the U-shaped part to move under the action of the connecting sleeve, which in turn moves the wire rope under the action of the U-shaped part. This causes the sliding rod to move under the action of the wire rope, which in turn causes the first and second rotating parts to rotate in a direction away from each other under the action of the sliding rod, thus separating the rotating block from the first and second rotating parts. At this point, the worker can open the car door. During this process, the motor can be started remotely via a mobile phone or via a touch button on the car door, thereby improving the practicality of the device.
[0021] 3. In this application, when the slide bar moves under the action of the wire rope, the limiting block limits the slide bar, thereby reducing the probability of the slide bar separating from the sliding hole under the action of the wire rope, thus improving the stability of the device. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0023] Figure 2 This is a schematic diagram of the structure of the driving component in an embodiment of this utility model;
[0024] Figure 3 This is a cross-sectional structural diagram of the device in an embodiment of this utility model;
[0025] Figure 4 yes Figure 3 A magnified structural diagram of A in the middle;
[0026] Figure 5 This is a schematic diagram of the connection structure between the first rotating component and the second rotating component in an embodiment of this utility model.
[0027] In the diagram: 1. Support plate; 11. First rotating component; 12. Second rotating component; 13. First spring; 14. Rotating block; 2. Rotating groove; 21. Connecting groove; 22. Sliding hole; 23. Sliding groove; 24. Limiting groove; 25. Mounting groove; 3. Drive assembly; 31. Sliding rod; 32. Steel wire rope; 33. U-shaped component; 4. Connecting sleeve; 41. Motor; 42. Threaded rod; 5. Limiting block; 6. First limit switch; 61. Trigger; 7. Second limit switch. Detailed Implementation
[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0029] like Figure 1-5As shown in the illustration, this application discloses a secure and anti-theft car door lock, including a support plate 1, a first rotating component 11, a second rotating component 12, a first spring 13, a rotating block 14, a drive assembly 3, a connecting sleeve 4, a motor 41, a threaded rod 42, a limit block 5, a first limit switch 6, a trigger component 61, and a second limit switch 7. The support plate 1 is a rectangular plate structure, with a rotating groove 2 extending through its side wall. The first rotating component 11 is rotatably disposed within the rotating groove 2, and a connecting groove 21 is formed on the first rotating component 11. The second rotating component 12 is rotatably disposed within the connecting groove 21. Two first springs 13 are provided, with one end of each spring 13 symmetrically disposed on the side wall of the support plate 1, and the other ends of each spring 13 fixed to the first rotating component 11 and the second rotating component 12, respectively. The rotating block 14 is disposed within the first rotating component 11 and the second rotating component 12, and is fixed to the car door frame.
[0030] When the staff closes the car door, the support plate 1, the first rotating component 11, and the second rotating component 12 gradually approach the rotating block 14, causing the rotating block 14 to abut against the first rotating component 11 and the second rotating component 12. This causes the first rotating component 11 and the second rotating component 12 to rotate away from each other under the action of the rotating block 14, thus locking the rotating block 14 into the first rotating component 11 and the second rotating component 12. At this time, the first rotating component 11 and the second rotating component 12 rotate towards each other under the action of the first spring 13, causing their adjacent sidewalls to abut against the outer wall of the rotating block 14, thereby closing the car door. If the staff needs to open the car door, they need to activate the drive assembly 3. During this process, the drive assembly 3 can be remotely activated via a mobile phone or via a touch button on the car door, thus improving the practicality of the device.
[0031] Both the first rotating member 11 and the second rotating member 12 have sliding holes 22 on their side walls, and two sliding grooves 23 are formed through the upper surface of the support plate 1. A drive assembly 3 is mounted on the support plate 1 and is used to drive the first rotating member 11 and the second rotating member 12. The drive assembly 3 includes a sliding rod 31, a steel wire rope 32, and a U-shaped member 33. The sliding rod 31 is a round rod structure with a vertical axis. Two sliding rods 31 are provided and are respectively disposed in the two sliding grooves 23. One end of the steel wire rope 32 is fixedly disposed on the bottom surface of the sliding rod 31. The U-shaped member 33 has a U-shaped cross-section and is disposed at the other end of the steel wire rope 32. The U-shaped member 33 is slidably connected to the two sliding grooves 23.
[0032] The connecting sleeve 4 is fixedly mounted on the side wall of the U-shaped part 33, and the motor 41 is fixedly mounted on the side wall of the support plate 1, with its output shaft axis vertical. The threaded rod 42 is fixedly mounted on the end of the output shaft of the motor 41, with its axis coinciding with the axis of the output shaft of the motor 41, and the threaded rod 42 is threadedly connected to the connecting sleeve 4.
[0033] When a worker needs to open the car door, they must start the motor 41, causing its output shaft to rotate. This, in turn, rotates the threaded rod 42, which in turn moves the connecting sleeve 4. This, in turn, moves the U-shaped part 33, which in turn moves the wire rope 32. This, in turn, moves the sliding rod 31, causing the first rotating part 11 and the second rotating part 12 to rotate away from each other under the action of the sliding rod 31. This separates the rotating block 14 from the first and second rotating parts 11 and 12. The worker can then open the car door. During this process, the motor 41 can be remotely started via a mobile phone or a touch button on the car door, thus improving the device's practicality.
[0034] A limiting groove 24 is provided on the inner wall of the sliding hole 22, and the limiting block 5 is slidably disposed in the limiting groove 24. The limiting block 5 and the sliding rod 31 are fixed to each other.
[0035] When the slide bar 31 moves under the action of the wire rope 32, the limiting block 5 limits the slide bar 31, thereby reducing the probability of the slide bar 31 separating from the sliding hole 22 under the action of the wire rope 32, thus improving the stability of the device.
[0036] Two first limit switches 6 are provided and symmetrically arranged on the side wall of the support plate 1. Both first limit switches 6 are electrically connected to the motor 41. Two trigger members 61 are provided and fixedly arranged on the first rotating member 11 and the second rotating member 12. The trigger members 61 are used to trigger the first limit switches 6.
[0037] When the first rotating member 11 and the second rotating member 12 rotate in a direction away from each other, the trigger member 61 rotates synchronously with the first rotating member 11 and the second rotating member 12. During this process, when the trigger member 61 comes into contact with the first limit switch 6, the motor 41 stops rotating, thereby reducing the difficulty for the operator to control the motor 41 to stop and thus reducing the difficulty of the operator's work.
[0038] The rotating block 14 has a mounting groove 25 on its side wall, and the second limit switch 7 is installed in the mounting groove 25. The second limit switch 7 is electrically connected to the motor 41.
[0039] When the car door is opened, the rotating block 14 separates from the first rotating component 11 and the second rotating component 12. The motor 41 reverses under the action of the second limit switch 7, thereby reducing the difficulty for the staff to reset the drive component 3 and thus reducing the difficulty of the staff's work.
[0040] To improve the stability of the device, a baffle plate (not shown in the figure) is fixedly installed on the U-shaped part 33. The end of the wire rope 32 away from the slide bar 31 is fixed to the baffle plate. The diameter of the slide groove 23 is smaller than the diameter of the baffle plate. The baffle plate reduces the probability of the U-shaped part 33 separating from the slide groove 23, thereby improving the stability of the device.
[0041] The working principle of a secure and anti-theft car door lock in this embodiment is as follows: When the operator closes the car door, the support plate 1, the first rotating member 11, and the second rotating member 12 gradually approach the rotating block 14, causing the rotating block 14 to abut against the first rotating member 11 and the second rotating member 12. This causes the first rotating member 11 and the second rotating member 12 to rotate away from each other under the action of the rotating block 14, thus locking the rotating block 14 into the first rotating member 11 and the second rotating member 12. At this time, the first rotating member 11 and the second rotating member 12 rotate towards each other under the action of the first spring 13, causing the sidewalls of the first rotating member 11 and the second rotating member 12 to abut against the outer wall of the rotating block 14, thereby closing the car door. If the operator needs to open the car door, they need to activate the drive assembly 3. During this process, the drive assembly 3 can be remotely activated via a mobile phone or via a touch button on the car door, thereby improving the practicality of the device.
[0042] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A security type automobile door lock comprising a support plate (1), characterized in that: The side wall of the support plate (1) is provided with a rotating groove (2) penetrating through, the first rotating part (11) is rotationally arranged in the rotating groove (2), the connecting groove (21) is arranged on the first rotating part (11), the second rotating part (12) is rotationally arranged in the connecting groove (21), the first spring (13) is symmetrically arranged on the side wall of the support plate (1), the other ends of the two first springs (13) are fixed with the first rotating part (11) and the second rotating part (12) respectively, the rotating block (14) is arranged in the first rotating part (11) and the second rotating part (12) in common, the rotating block (14) is fixed with the automobile door frame, and the driving assembly (3) for driving the first rotating part (11) and the second rotating part (12) is arranged on the support plate (1).
2. The security type automobile door lock according to claim 1, wherein: The side wall of the first rotating part (11) and the second rotating part (12) is provided with a sliding hole (22), the upper surface of the support plate (1) is provided with two sliding grooves (23) penetrating through, the driving assembly (3) comprises two sliding rods (31) arranged in the two sliding grooves (23) respectively, two steel wires (32) fixedly arranged at the bottom surfaces of the two sliding rods (31) and a U-shaped piece (33) arranged at the other ends of the two steel wires (32), and the U-shaped piece (33) is in sliding connection with the two sliding grooves (23).
3. The security type automobile door lock according to claim 2, wherein: The side wall of the U-shaped piece (33) is fixedly provided with a connecting sleeve (4), the side wall of the support plate (1) is fixedly provided with a motor (41), the output shaft end of the motor (41) is fixedly provided with a threaded rod (42), and the threaded rod (42) is in threaded connection with the connecting sleeve (4).
4. The security type automobile door lock according to claim 2, wherein: The inner wall of the sliding hole (22) is provided with a limiting groove (24), and the limiting block (5) is slidably arranged in the limiting groove (24).
5. The security type automobile door lock according to claim 3, wherein: The side wall of the support plate (1) is symmetrically provided with two first limit switches (6), the two first limit switches (6) are electrically connected with the motor (41), the trigger piece (61) is fixedly arranged on the first rotating part (11) and the second rotating part (12), and the trigger piece (61) is used for triggering the first limit switch (6).
6. The security type automobile door lock according to claim 1, wherein: The side wall of the rotating block (14) is provided with a mounting groove (25), and the second limit switch (7) is arranged in the mounting groove (25).
7. The security type automobile door lock according to claim 2, wherein: The U-shaped piece (33) is fixedly provided with a blocking plate, one end of the steel wire (32) away from the sliding rod (31) is fixedly connected with the blocking plate, and the diameter of the sliding groove (23) is smaller than that of the blocking plate.