Automobile door auxiliary lock with limiting function

Abstract

The utility model relates to the technical field of automobile door auxiliary locks, and discloses an automobile door auxiliary lock with a limiting function. The lock box is fixed at the upper part of the lower plate; the lock pawl assembly is arranged in the lock box; the lock hook assembly is arranged in the lock box, and the lock hook assembly is further located on one side of the lock pawl assembly; the edge of the upper plate is connected with the lower plate, and the upper plate covers the upper part of the lock box; the limiting block is arranged on the side, away from the upper plate, of the lower plate. The lock pawl assembly, the lock hook assembly and the limiting block are arranged and matched with one another, when the lock ring is inserted into the lock box and the positioning column is inserted into the limiting block, the lock ring is meshed to be in a full-locking state, meanwhile, the positioning column and the limiting block conduct limiting, the movement amount of a vehicle door in the Z direction and the Y direction of the vehicle door can be guaranteed, and the use reliability of the vehicle door auxiliary lock is enhanced; and the vehicle use safety of the user is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile door auxiliary locks, in particular to an automobile door auxiliary lock with a limiting function. Background Art

[0002] The door sub-lock is generally used as an auxiliary lock. It is matched with the rear double-door main lock body or related actuator to complete the side door opening and closing function. It can also be directly matched with the handle or transmission mechanism for pickup truck cargo box opening and closing, or other non-door systems that need to be opened and closed. The main function of the door sub-lock is to increase the safety and convenience of the door. Specifically, the door sub-lock can provide an additional locking mechanism to ensure that the door is more secure when closed to prevent unauthorized opening. This increases the safety of the vehicle to a certain extent, especially when parking or leaving the vehicle. In addition, the door sub-lock can also provide convenience. For example, in some vehicles, the door sub-lock allows passengers to open the door from the inside when the door is closed, which is particularly useful in emergencies. However, in some cases, the door sub-lock can also be set to prevent passengers from opening the door from the inside to ensure the safety of passengers during driving. The door sub-lock is usually installed on the inside or edge of the door, and the specific location may vary depending on the model and vehicle manufacturer. Generally speaking, the door sub-lock is an auxiliary lock mechanism installed on the inner panel of the door to increase the safety and anti-theft of the door.

[0003] In some models, the secondary door lock may be located near the handle or handle inside the door, usually in conjunction with the main door lock mechanism. When the main door lock is locked, the secondary door lock will also lock accordingly to prevent the door from being opened without authorization. In addition, some models may install the secondary door lock at the edge of the door, such as at the top or bottom of the door frame. This design can provide an additional locking point to further increase the security of the door.

[0004] In the existing door lock opening function, the matching main lock or actuator cable pulls the pawl to release the ratchet to realize the door lock opening function. However, when the secondary lock and the main lock or actuator are closed and locked, the secondary lock is affected by the main lock related action relationship and environmental factors such as vibration. When the main lock or actuator drives the cable linkage, the cable sometimes falls off.

[0005] Therefore, there is an urgent need for a car door auxiliary lock with a limiting function to solve the problem that the car door auxiliary lock in the prior art is unreliable when used, resulting in the user's safety being affected. Utility Model Content

[0006] In view of this, the utility model proposes a vehicle door auxiliary lock with a limiting function, aiming to solve the problem that the vehicle door auxiliary lock in the prior art is unreliable when used, resulting in the safety of users being affected.

[0007] The utility model provides a vehicle door auxiliary lock with a limiting function, comprising:

[0008] Lower plate;

[0009] A lock box, fixed to the upper portion of the lower plate;

[0010] A lock pawl assembly, disposed in the lock box;

[0011] A lock hook assembly is disposed in the lock box, and the lock hook assembly is also located on one side of the lock pawl assembly;

[0012] An upper plate, the edge of which is connected to the lower plate, and the upper plate cover is arranged on the upper part of the lock box;

[0013] A limit block is arranged on a side of the lower plate away from the upper plate.

[0014] Furthermore, the limit block includes:

[0015] A first block, fixed to the lower plate;

[0016] The second block is inserted in the first block, and a groove is arranged in the middle of the second block.

[0017] Furthermore, the limit block also includes:

[0018] The limit spring is embedded in the first block, the middle of the first end of the second block is inserted into the limit spring, and the outer part of the first end of the second block is inserted between the first block and the limit spring.

[0019] Furthermore, the limit block also includes:

[0020] There are two positioning blocks, one of which is arranged between the first block and the lower plate, and the other is arranged on a side of the first block away from the lower plate, wherein the two positioning blocks are arranged opposite to each other, and the lower ends of the two positioning blocks are inserted into the lower plate, and the positioning blocks are used to fix the first block;

[0021] The buffer springs are respectively arranged between the first block and the two positioning blocks.

[0022] Further, the locking pawl assembly comprises:

[0023] A lock pawl torsion spring, embedded in the lock box;

[0024] A lock hook pawl pin is arranged in the middle of the lock pawl torsion spring, and the upper and lower ends of the lock hook pawl pin are connected to the inner wall of the lock box;

[0025] A lock pawl is rotatably arranged on the lock hook pawl pin.

[0026] Furthermore, the locking hook assembly comprises:

[0027] A lock hook torsion spring, embedded in the lock box;

[0028] A lock hook pin is arranged in the middle of the lock hook torsion spring, and the upper and lower ends of the lock hook pin are connected to the inner wall of the lock box;

[0029] The lock hook is rotatably arranged on the lock hook pin.

[0030] Furthermore, the automobile door auxiliary lock with a limiting function also includes:

[0031] A lock hook buffer pad is laid between the lock hook and the lock box.

[0032] Furthermore, the automobile door auxiliary lock with a limiting function also includes:

[0033] Mounting plate;

[0034] A locking ring, which is U-shaped, with two ends of the U-shaped opening of the locking ring fixed to the mounting plate, and the other end of the locking ring connected to the locking hook;

[0035] A positioning column, one end of which is fixed on the mounting plate, and the other end of which is inserted into the second block in the limiting block.

[0036] Furthermore, the automobile door auxiliary lock with a limiting function also includes:

[0037] A lock ring buffer pad is arranged between the lock box and the lock ring.

[0038] Furthermore, the automobile door auxiliary lock with a limiting function also includes:

[0039] A pull cable is inserted in the locking pawl.

[0040] Compared with the prior art, the beneficial effect of the utility model lies in that a lock pawl assembly, a lock hook assembly and a limit block are provided, and the three cooperate with each other. When the lock ring is inserted into the lock box and the positioning column is inserted into the limit block, the lock ring engages to a fully locked state, and at the same time the positioning column and the limit block are limited, which can ensure the movement of the door in the Z and Y directions, enhance the reliability of the door auxiliary lock when in use, and ensure the safety of the user's vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0042] Figure 1 A schematic structural diagram of a vehicle door auxiliary lock with a limiting function provided by an embodiment of the utility model without a lower plate;

[0043] Figure 2 A schematic structural diagram of a vehicle door auxiliary lock with a limiting function provided by an embodiment of the utility model without an upper plate;

[0044] Figure 3 A schematic diagram of the structure of the lower plate side of the auxiliary lock of a car door with a limiting function provided by an embodiment of the utility model;

[0045] Figure 4 A schematic diagram of the structure of the upper plate side of a vehicle door auxiliary lock with a limiting function provided by an embodiment of the utility model;

[0046] Figure 5 A schematic diagram of the installation structure of the lock hook buffer pad and the lock ring buffer pad provided in an embodiment of the utility model;

[0047] Figure 6 A cross-sectional view of a vehicle door auxiliary lock with a limiting function provided by an embodiment of the utility model;

[0048] Figure 7 A cross-sectional view of a limit block provided in an embodiment of the utility model.

[0049] In the figure: 100, lower plate; 200, lock box; 300, lock pawl assembly; 310, lock pawl torsion spring; 320, lock hook pawl pin; 330, lock pawl; 400, lock hook assembly; 410, lock hook torsion spring; 420, lock hook pin; 430, lock hook; 500, upper plate; 600, limit block; 610, first block; 620, second block; 630, limit spring; 640, positioning block; 650, buffer spring; 710, lock hook buffer pad; 720, lock ring buffer pad; 810, mounting plate; 820, lock ring; 830, positioning column; 900, cable. DETAILED DESCRIPTION

[0050] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0051] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] See also Figure 1-7 As shown, the present embodiment provides a vehicle door auxiliary lock with a limiting function, comprising a lower plate 100; a lock box 200, fixed to the upper part of the lower plate 100; a lock pawl assembly 300, arranged in the lock box 200; a lock hook assembly 400, arranged in the lock box 200, and the lock hook assembly 400 is also located on one side of the lock pawl assembly 300; an upper plate 500, the edge of which is connected to the lower plate 100, and the upper plate 500 is covered on the upper part of the lock box 200; and a limiting block 600, arranged on a side of the lower plate 100 away from the upper plate 500.

[0055] It can be understood that the lock pawl assembly 300, the lock hook assembly 400 and the limit block 600 are provided, and the three cooperate with each other. When the lock ring 820 is inserted into the lock box 200 and the positioning column 830 is inserted into the limit block 600, the lock ring 820 engages to a fully locked state, and at the same time, the positioning column 830 and the limit block 600 are limited, which can ensure the movement of the door in the Z direction and the Y direction, enhance the reliability of the door auxiliary lock when in use, and ensure the safety of the user's vehicle.

[0056] In a specific embodiment of the present application, the limiting block 600 includes a first block 610 fixed on the lower plate 100 ; a second block 620 inserted in the first block 610 , and a groove is provided in the middle of the second block 620 .

[0057] It is understandable that the second block 620 can be used as a buffer block, and the positioning column 830 is inserted into the groove of the second block 620 for positioning.

[0058] In a specific embodiment of the present application, the limit block 600 also includes a limit spring 630, which is embedded in the first block 610, the middle of the first end of the second block 620 is inserted into the limit spring 630, and the outside of the first end of the second block 620 is inserted between the first block 610 and the limit spring 630.

[0059] It is understandable that a limit spring 630 is provided between the first block 610 and the second block 620 , which can play a good buffering role when the positioning block 640 is inserted into the second block 620 .

[0060] In a specific embodiment of the present application, the limit block 600 also includes two positioning blocks 640, one of which is arranged between the first block 610 and the lower plate 100, and the other positioning block 640 is arranged on the side of the first block 610 away from the lower plate 100, wherein the two positioning blocks 640 are arranged opposite to each other, and the lower ends of the two positioning blocks 640 are inserted into the lower plate 100, and the positioning blocks 640 are used to fix the first block 610; the buffer springs 650 are respectively arranged between the first block 610 and the two positioning blocks 640.

[0061] It can be understood that two positioning blocks 640 are provided to fix the first block 610 well, and a buffer spring 650 is provided between the first block 610 and the two positioning blocks 640, which can not only reduce the impact force of the movement of the car on the first block 610 and the internal structure, but also reduce the impact force when the positioning column 830 enters the second block 620, thereby protecting the limit block 600.

[0062] In a specific embodiment of the present application, the lock pawl assembly 300 includes a lock pawl torsion spring 310, which is embedded in the lock box 200; a lock hook pawl pin 320, which is arranged in the middle of the lock pawl torsion spring 310, and the upper and lower ends of the lock hook pawl pin 320 are connected to the inner wall of the lock box 200; and a lock pawl 330, which is rotatably arranged on the lock hook pawl pin 320.

[0063] In a specific embodiment of the present application, the lock hook assembly 400 includes a lock hook torsion spring 410, which is embedded in the lock box 200; a lock hook pin 420, which is arranged in the middle of the lock hook torsion spring 410, and the upper and lower ends of the lock hook pin 420 are connected to the inner wall of the lock box 200; and a lock hook 430, which is rotatably arranged on the lock hook pin 420.

[0064] It is understandable that the lock pawl assembly 300 and the lock hook assembly 400 cooperate to achieve locking and unlocking of the lock ring 820 .

[0065] In a specific embodiment of the present application, the automobile door auxiliary lock with a limiting function further includes a lock hook buffer pad 710 , which is laid between the lock hook 430 and the lock box 200 .

[0066] It is understandable that the buffer assembly of the lock hook 430 can provide buffering for the lock hook 430 during operation, thereby extending the service life of the lock hook 430 and reducing the impact force on other components directly and indirectly adjacent to the lock hook 430 .

[0067] In a specific embodiment of the present application, the automobile door auxiliary lock with a limiting function also includes a mounting plate 810; a locking ring 820, which is U-shaped, and both ends of the U-shaped opening of the locking ring 820 are fixed on the mounting plate 810, and the other end of the locking ring 820 is connected to the lock hook 430; a positioning column 830, one end of which is fixed on the mounting plate 810, and the other end of the positioning column 830 is inserted into the second block 620 in the limiting block 600.

[0068] It can be understood that the double locking of the lock ring 820 and the positioning column 830 can improve the locking force of the vehicle door auxiliary lock. The lock ring 820 is engaged to the full lock state, and the positioning column 830 and the limit block 600 are limited at the same time, which can ensure the movement of the vehicle door in the Z direction and the Y direction, enhance the reliability of the vehicle door auxiliary lock when in use, and ensure the user's vehicle safety.

[0069] In a specific embodiment of the present application, the automobile door auxiliary lock with a limiting function further includes a lock ring buffer pad 720 , which is arranged between the lock box 200 and the lock ring 820 .

[0070] It can be understood that the provision of the lock ring buffer 720 can reduce the impact force of the lock ring 820 on the inside of the secondary lock when the car is in use, thereby extending the service life of the secondary lock.

[0071] In a specific embodiment of the present application, the automobile door auxiliary lock with a limiting function further includes a cable 900 inserted in the lock pawl 330 .

[0072] It can be understood that the cable 900 is used to connect the main lock of the car door.

[0073] The working principle of the utility model is as follows: the lock ring 820 is inserted into the lock box 200, the positioning column 830 is inserted into the limit block 600, the lock ring 820 is engaged to a fully locked state, and at the same time, the positioning column 830 and the limit block 600 are limited to ensure the movement of the door in the Z direction and the Y direction.

[0074] In summary, the lock pawl assembly 300, the lock hook assembly 400 and the limit block 600 are provided, and the three cooperate with each other. When the lock ring 820 is inserted into the lock box 200 and the positioning column 830 is inserted into the limit block 600, the lock ring 820 engages to a fully locked state, and at the same time, the positioning column 830 and the limit block 600 are limited, which can ensure the movement of the door in the Z direction and the Y direction, enhance the reliability of the door auxiliary lock when in use, and ensure the safety of the user's vehicle.

[0075] Furthermore, the second block 620 can be used as a buffer block, and the positioning column 830 is inserted into the groove of the second block 620 for positioning. A limit spring 630 is arranged between the first block 610 and the second block 620, and can play a good buffering role when the positioning block 640 is inserted into the second block 620. Two positioning blocks 640 are arranged to fix the first block 610 well, and a buffer spring 650 is arranged between the first block 610 and the two positioning blocks 640, which can not only reduce the impact force of the movement of the car on the first block 610 and the internal structure, but also reduce the impact force when the positioning column 830 enters the second block 620, thereby protecting the limit block 600.

[0076] Furthermore, the lock pawl assembly 300 and the lock hook assembly 400 cooperate to achieve locking and unlocking of the lock ring 820. The lock hook 430 buffer assembly is provided to buffer the lock hook 430 when it is working, extend the service life of the lock hook 430, and reduce the impact force on other components directly and indirectly adjacent to the lock hook 430. The lock ring 820 and the positioning column 830 are double locked to improve the locking force of the vehicle door secondary lock. The lock ring 820 is engaged to the full lock state, and the positioning column 830 is limited by the limit block 600 at the same time, which can ensure the movement of the vehicle door in the Z direction and the Y direction, enhance the reliability of the vehicle door secondary lock when in use, and ensure the safety of the user's vehicle. The lock ring buffer pad 720 is provided to reduce the impact force of the lock ring 820 on the inside of the secondary lock when the car is in use, and extend the service life of the secondary lock.

[0077] Those skilled in the art can understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A car door auxiliary lock with a limiting function, characterized in that: include: Lower plate; A lock box, fixed to the upper portion of the lower plate; A lock pawl assembly, disposed in the lock box; A lock hook assembly is disposed in the lock box, and the lock hook assembly is also located on one side of the lock pawl assembly; An upper plate, the edge of which is connected to the lower plate, and the upper plate cover is arranged on the upper part of the lock box; A limit block is arranged on a side of the lower plate away from the upper plate.

2. The automobile door auxiliary lock with a limiting function according to claim 1 is characterized in that: The limit block comprises: A first block, fixed to the lower plate; The second block is inserted in the first block, and a groove is arranged in the middle of the second block.

3. The automobile door auxiliary lock with a limiting function according to claim 2, characterized in that: The limit block also includes: The limit spring is embedded in the first block, the middle of the first end of the second block is inserted into the limit spring, and the outer part of the first end of the second block is inserted between the first block and the limit spring.

4. The automobile door auxiliary lock with a limiting function according to claim 2, characterized in that: The limit block also includes: There are two positioning blocks, one of which is arranged between the first block and the lower plate, and the other is arranged on a side of the first block away from the lower plate, wherein the two positioning blocks are arranged opposite to each other, and the lower ends of the two positioning blocks are inserted into the lower plate, and the positioning blocks are used to fix the first block; The buffer springs are respectively arranged between the first block and the two positioning blocks.

5. The automobile door auxiliary lock with a limiting function according to claim 2, characterized in that: The lock pawl assembly includes: A lock pawl torsion spring, embedded in the lock box; A lock hook pawl pin is arranged in the middle of the lock pawl torsion spring, and the upper and lower ends of the lock hook pawl pin are connected to the inner wall of the lock box; A lock pawl is rotatably arranged on the lock hook pawl pin.

6. The automobile door auxiliary lock with a limiting function according to claim 5, characterized in that: The locking hook assembly comprises: A lock hook torsion spring, embedded in the lock box; A lock hook pin is arranged in the middle of the lock hook torsion spring, and the upper and lower ends of the lock hook pin are connected to the inner wall of the lock box; The lock hook is rotatably arranged on the lock hook pin.

7. The automobile door auxiliary lock with a limiting function according to claim 2, characterized in that: The automobile door auxiliary lock with a limiting function also includes: A lock hook buffer pad is laid between the lock hook and the lock box.

8. The automobile door auxiliary lock with a limiting function according to claim 2, characterized in that: The automobile door auxiliary lock with a limiting function also includes: Mounting plate; A locking ring, which is U-shaped, with two ends of the U-shaped opening of the locking ring fixed to the mounting plate, and the other end of the locking ring connected to the locking hook; A positioning column, one end of which is fixed on the mounting plate, and the other end of which is inserted into the second block in the limiting block.

9. The automobile door auxiliary lock with a limiting function according to claim 8, characterized in that: The automobile door auxiliary lock with a limiting function also includes: A lock ring buffer pad is arranged between the lock box and the lock ring.

10. The automobile door auxiliary lock with a limiting function according to claim 1, characterized in that: The automobile door auxiliary lock with a limiting function also includes: A pull cable is inserted into the locking pawl.

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