Spring bolt protection type motor vehicle electric door lock

The lock cylinder is secured by a limiting plate, through holes, and a cover structure. Combined with a dual unlocking mode using a key and an NFC sensor, the problems of inconvenient lock cylinder disassembly and NFC unlocking failure are solved, achieving stable installation of the lock cylinder and safe and efficient unlocking.

CN224093173UActive Publication Date: 2026-04-07ZHEJIANG LIHAI MOTORCYCLE PARTS CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing vehicle ignition locks are inconvenient to disassemble when the lock cylinder is damaged, have long repair times, low security when NFC unlocking fails, and poor performance.

Method used

The lock cylinder is secured by a structure consisting of a limiting plate, through holes, and a cover. It combines a dual unlocking mode using a key and an NFC sensor. The limiting block aligns with the limiting hole, the bolt is inside the through hole, the cover is pressed against the fixing plate, the key rotates to move the bolt, and the NFC sensor controls the electromagnetic base to power the bolt, thus achieving dual unlocking.

Benefits of technology

It simplifies the installation and disassembly process of the lock cylinder, improves the stability of the lock cylinder, and enhances security and usability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224093173U_ABST
    Figure CN224093173U_ABST
Patent Text Reader

Abstract

The utility model discloses a spring bolt protection type motor vehicle electric door lock, relates to the technical field of electric door locks, solves the problems that an existing device is inconvenient to mount and dismount and poor in using effect, and adopts the following scheme that a limiting plate is fixedly mounted on the inner wall of the left side of a shell. Through the arrangement of the limiting plate, the through hole and the shell cover, the lock cylinder is placed in the outer shell, the limiting block corresponds to the limiting hole, the spring bolt is located in the through hole, then the shell cover is installed on the right side of the outer shell through the installation hole, the shell cover makes contact with the fixing plate in an extrusion mode, and installation and disassembly are easy and convenient; the key is inserted into the key hole and penetrates into the lock hole, the lock tongue is driven to move through rotation of the key, unlocking is completed, a signal can be transmitted to the controller through the NFC sensor, the controller controls the electromagnetic base to electrify the door lock motor, the door lock motor drives the lock tongue to move, and the using effect of the device is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of ignition lock technology, specifically a latch-protected motor vehicle ignition lock. Background Technology

[0002] Currently, the ignition locks used on motorcycles on the market all utilize key switches to achieve the main functions of starting and stopping the vehicle, opening the seat storage box, and the steering wheel lock. However, using key switches requires carrying a key, which is inconvenient.

[0003] A search revealed that patent application CN215907650U discloses a vehicle ignition lock with NFC sensing function, including a base and a lock cylinder assembly. The lock cylinder assembly includes a lock cylinder, a gear shift seat, a lock cylinder sleeve, a solenoid valve, and a bolt. A base front cover is connected to the side of the base, and the solenoid valve is installed on the base front cover. The gear shift seat includes an annular mounting body and a face cover. A base is detachably connected to the face cover, including an NFC sensing chip. An NFC sensing antenna is provided between the base and the face cover. This allows the vehicle door to be unlocked via the NFC sensing chip, improving convenience.

[0004] However, due to the design of the base and lock cylinder components, it is inconvenient to disassemble and install the lock cylinder when it is damaged, resulting in long repair time and high costs. At the same time, when the NFC or solenoid valve is damaged, the electric vehicle cannot be powered on, causing NFC unlocking to fail, resulting in low security and poor performance.

[0005] Therefore, we propose a latch-protected motor vehicle ignition lock. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a latch-protected motor vehicle ignition lock, which solves the problems of inconvenient installation and disassembly and poor performance of existing devices.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a lock tongue protection type motor vehicle ignition lock, including a shell, wherein a lock cylinder of compatible specifications is assembled inside the shell;

[0008] A matching limiting plate is fixedly installed on the inner wall of the left side of the outer casing. Four sets of corresponding limiting holes are opened on the right side of the limiting plate, and a through hole is opened on the left side of the limiting plate. Four sets of corresponding limiting blocks are fixedly installed on the left side of the lock cylinder. A lock tongue located in the through hole is slidably connected to the left side of the lock cylinder. A door lock motor connected to the lock cylinder is fixedly installed on the right side of the lock cylinder. A fixing plate is fixedly installed on the right side of the door lock motor. A matching shell cover is assembled on the right side of the outer casing. Four sets of corresponding mounting holes A are opened on the right side of the shell cover, and four sets of matching mounting holes B are opened on the right side of the outer casing.

[0009] A lock hole is provided on the outer wall of the front side of the lock cylinder. A connecting seat is fixedly installed on the outer wall of the front side of the outer shell. A key hole communicating with the lock hole is provided on the front side of the connecting seat. An NFC sensor and a controller are fixedly installed on the inner wall of the outer shell. An electromagnetic base connected to the controller is fixedly installed on the top surface of the outer shell.

[0010] Preferably, the bottom surface of the housing has heat dissipation holes opposite to the position of the door lock motor, which can improve the heat dissipation effect of the door lock motor and extend its service life.

[0011] Preferably, the bottom surface of the outer casing is fitted with a dust cover positioned opposite to it, which can prevent dust from entering the lock cylinder through the heat dissipation holes.

[0012] Preferably, a pad made of rubber material is fixedly installed on the left side of the cover. The pad is in contact with and pressed against the fixing plate, which can ensure the stability of the lock cylinder installation.

[0013] Preferably, a sealing sleeve of a suitable specification is fitted between the bolt and the lock cylinder to prevent dust from entering the lock cylinder from the bolt.

[0014] Preferably, two sets of mounting plates with opposite positions are fixedly installed on the outer wall of the front side of the housing, and two sets of mounting holes C with opposite positions are opened on the front side of the mounting plates, which facilitates the installation and connection of the housing with the vehicle door.

[0015] 1. This type of lock tongue protection motor vehicle ignition lock, through the setting of a limiting plate, through hole and shell cover, places the lock cylinder inside the shell, the limiting block corresponds to the limiting hole, the lock tongue is located in the through hole, and then the shell cover is installed on the right side of the shell through the mounting hole. The shell cover contacts and presses against the fixing plate, making installation and disassembly simple and convenient, ensuring the stability of the lock cylinder installation and reducing maintenance time.

[0016] 2. Simultaneously, by connecting the base, keyhole, and NFC sensor, the key is inserted into the keyhole and then into the keyhole. The key is rotated to move the bolt and unlock the door. Alternatively, the NFC sensor can transmit a signal to the controller, which then controls the electromagnetic base to power the door lock motor. The door lock motor then moves the bolt to unlock the door. This dual unlocking mode improves the security and effectiveness of the device. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the structure of the dust cover of this utility model;

[0019] Figure 3This is a schematic diagram of the structure of the shell cover of this utility model;

[0020] Figure 4 This is a schematic diagram of the NFC sensor of this utility model;

[0021] Figure 5 This is a schematic diagram of the lock cylinder of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the limiting plate of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Lock cylinder; 3. Limiting plate; 4. Limiting hole; 5. Through hole; 6. Limiting block; 7. Lock tongue; 8. Door lock motor; 9. Fixing plate; 10. Shell cover; 11. Mounting hole A; 12. Mounting hole B; 13. Lock hole; 14. Connecting seat; 15. Keyhole; 16. NFC sensor; 17. Controller; 18. Electromagnetic seat; 19. Heat dissipation hole; 20. Dust cover; 21. Pad; 22. Sealing sleeve; 23. Mounting plate; 24. Mounting hole C. Detailed Implementation

[0024] 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.

[0025] Example 1: As Figures 1-6 As shown: A matching limiting plate 3 is fixedly installed on the inner wall of the left side of the outer casing 1. Four sets of corresponding limiting holes 4 are opened on the right side of the limiting plate 3, and a through hole 5 is opened on the left side of the limiting plate 3. Four sets of corresponding limiting blocks 6 are fixedly installed on the left side of the lock cylinder 2. A lock tongue 7 located in the through hole 5 is slidably connected to the left side of the lock cylinder 2. A door lock motor 8 connected to the lock cylinder 2 is fixedly installed on the right side. A fixing plate 9 is fixedly installed on the right side of the door lock motor 8. A matching casing cover 10 is assembled on the right side of the outer casing 1. The right side of the cover 10 has four sets of mounting holes A11 with opposite positions, and the right side of the outer shell 1 has four sets of mounting holes B12 with matching specifications. With the setting of the limiting plate 3, the through hole 5 and the cover 10, the lock cylinder 2 is placed inside the outer shell 1. The limiting block 6 corresponds to the limiting hole 4, and the lock tongue 7 is located in the through hole 5. Then the cover 10 is installed on the right side of the outer shell 1 through the mounting holes. The cover 10 contacts and presses against the fixing plate 9. The installation and disassembly are simple and convenient, and the stability of the lock cylinder 2 installation is also guaranteed, reducing maintenance time.

[0026] Example 2: As Figures 2-6As shown: A lock hole 13 is provided on the outer wall of the front side of the lock cylinder 2. A connecting seat 14 is fixedly installed on the outer wall of the front side of the outer shell 1, with a keyhole 15 connected to the lock hole 13 on the front side of the connecting seat 14. An NFC sensor 16 and a controller 17 are fixedly installed on the inner wall of the outer shell 1, with a corresponding position. An electromagnetic base 18 connected to the controller 17 is fixedly installed on the top surface of the outer shell 1. With the connection seat 14, lock hole 13 and NFC sensor 16, the key is inserted into the keyhole 15 and then into the lock hole 13. The key is rotated to move the bolt 7 to complete the unlocking. Alternatively, the NFC sensor 16 can transmit a signal to the controller 17, and the controller 17 controls the electromagnetic base 18 to power the door lock motor 8. The door lock motor 8 drives the bolt 7 to move to unlock. The dual unlocking mode improves the security and effectiveness of the device.

[0027] Example 3: As Figures 2-3 As shown: The bottom surface of the outer casing 1 is provided with heat dissipation holes 19 that are opposite to the position of the door lock motor 8. This can improve the heat dissipation effect of the door lock motor 8 and extend its service life.

[0028] The working principle and usage process of this utility model are as follows: When the device needs to work, the lock cylinder 2 is placed inside the outer shell 1, the limiting block 6 corresponds to the limiting hole 4, and the lock tongue 7 is located in the through hole 5. Then, the shell cover 10 is installed on the right side of the outer shell 1 through the mounting hole. The shell cover 10 contacts and presses against the fixing plate 9, making installation and disassembly simple and convenient, and also ensuring the stability of the lock cylinder 2 installation, reducing maintenance time. At the same time, the key is inserted into the keyhole 15 and penetrates into the lock hole 13. The lock tongue 7 is moved by rotating the key to complete the unlocking. It can also transmit a signal to the controller 17 through the NFC sensor 16. The controller 17 controls the electromagnetic base 18 to power the door lock motor 8. The door lock motor 8 drives the lock tongue 7 to move to unlock. The dual unlocking mode improves the security and effectiveness of the device.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lock tongue protection type motor vehicle ignition lock, comprising a housing (1), wherein a lock cylinder (2) of the same specification is assembled inside the housing (1). Its features are: A matching limiting plate (3) is fixedly installed on the inner wall of the left side of the outer shell (1). Four sets of corresponding limiting holes (4) are opened on the right side of the limiting plate (3). A through hole (5) is opened on the left side of the limiting plate (3). Four sets of corresponding limiting blocks (6) are fixedly installed on the left side of the lock cylinder (2). A lock tongue (7) located in the through hole (5) is slidably connected to the left side of the lock cylinder (2). A door lock motor (8) is fixedly installed on the right side of the lock cylinder (2). A fixing plate (9) is fixedly installed on the right side of the door lock motor (8). A matching shell cover (10) is assembled on the right side of the outer shell (1). Four sets of corresponding mounting holes A (11) are opened on the right side of the shell cover (10). Four sets of matching mounting holes B (12) are opened on the right side of the outer shell (1). A lock hole (13) is provided on the outer wall of the front side of the lock cylinder (2). A connecting seat (14) is fixedly installed on the outer wall of the front side of the outer shell (1). A key hole (15) connected to the lock hole (13) is provided on the front side of the connecting seat (14). An NFC sensor (16) and a controller (17) are fixedly installed on the inner wall of the outer shell (1). An electromagnetic base (18) connected to the controller (17) is fixedly installed on the top surface of the outer shell (1).

2. The latch-protected motor vehicle ignition lock according to claim 1, characterized in that: The bottom surface of the outer casing (1) is provided with heat dissipation holes (19) opposite to the position of the door lock motor (8).

3. A latch-protected motor vehicle ignition lock according to claim 1, characterized in that: The bottom surface of the outer casing (1) is fitted with a dust cover (20) positioned opposite to it.

4. A latch-protected motor vehicle ignition lock according to claim 1, characterized in that: A rubber pad (21) is fixedly installed on the left side of the cover (10), and the pad (21) is in contact with and pressed against the fixing plate (9).

5. A latch-protected motor vehicle ignition lock according to claim 1, characterized in that: A sealing sleeve (22) of the same specification is fitted between the latch (7) and the lock cylinder (2).

6. A latch-protected motor vehicle ignition lock according to claim 1, characterized in that: Two sets of mounting plates (23) with opposite positions are fixedly installed on the outer wall of the front side of the outer shell (1), and two sets of mounting holes C (24) with opposite positions are opened on the front side of the mounting plate (23).

Citation Information

Patent Citations

  • Motor vehicle electric door lock with NFC induction function

    CN215907650U