Van rear door lock

Abstract

The application provides a van rear door lock, which comprises a left door base, a right door base and a door lock body, the left door base and the right door base are respectively installed on left and right door, installation grooves are arranged on the left door base and the right door base, a left lock cover and a right lock cover are respectively installed in the installation grooves, the left lock cover and the right lock cover are hollowly arranged, the door lock body is embeddedly assembled between the left lock cover and the right lock cover, and the door lock body is fixed on the left lock cover or the right lock cover, a left lock tongue is arranged on the left lock cover, a right lock tongue is arranged on the right lock cover, and a lock core assembly is arranged in the door lock body. The van rear door lock provided by the application is designed with two semicircles on the left and right door bases, so that the door lock can be opened from the right side or the left side when being installed, and therefore, the door lock is more convenient to use, the locking groove on the lock core is locked with the positioning column, the internal structure of the door lock body is simplified, and the overall size of the door lock is reduced.

Description

Technical Field

[0001] This application relates to the field of truck rear door lock technology, specifically to a rear door lock for a van. Background Technology

[0002] The core working principle of truck cargo door locks is to lock / unlock the cargo door through a mechanical structure or electromechanical combination. Manually turning the lock cylinder or moving the lock lever causes the bolt, hook, or pin to extend or retract, engaging with the latch or limiting groove in the door frame to mechanically lock the door. Turning the lock cylinder with the key, pulling the external handle or the internal operating lever reverses the mechanical structure, disengaging the bolt / pin and opening the door. Existing locks typically have a left and right base, requiring a fixed opening direction during installation—either the door is opened from the left or right—making it inconvenient to use. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The problem to be solved by this application is to provide a rear door lock for a van that overcomes the defects in the prior art.

[0005] (II) Technical Solution

[0006] The embodiments in this specification provide the following technical solutions:

[0007] This specification provides a rear door lock for a van, including a left door base, a right door base, and a lock body. The left and right door bases are respectively installed on the left and right doors. Each of the left and right door bases has a mounting groove, in which a left lock cover and a right lock cover are respectively installed. The left and right lock covers are hollow. The lock body is embedded and assembled between the left and right lock covers and is fixed to either the left or right lock cover. When fixed to the left lock cover, the left door can be opened when unlocked; when fixed to the right lock cover, the right door can be opened when unlocked. The left lock cover has a left latch, and the right lock cover has a right latch. The lock body contains a lock cylinder assembly. The lock cylinder assembly is locked to the left and right latches, and can be unlocked by rotating the lock cylinder assembly with a key.

[0008] In some embodiments, the lock cylinder assembly includes a lock cylinder and positioning pins symmetrically arranged on both sides of the lock cylinder. The left and right latches are both hook-shaped. The top of the lock cylinder is positioned between the left and right latches. The door lock body has a lock cylinder groove, a positioning hole, and a clearance groove. The lock cylinder is rotatably installed in the lock cylinder groove. The positioning pins are inserted into the positioning hole. The left and right latches are positioned in the clearance groove.

[0009] In some embodiments, the lock cylinder groove is connected to the clearance groove and the positioning hole, the bottom of the lock cylinder groove passes through the door lock body, the top two sides of the lock cylinder are symmetrically provided with arc-shaped concave locking grooves, the positioning pin can be placed in the locking groove, and one side of the locking groove is a plane.

[0010] In some embodiments, the door lock body is provided with a cover plate, and the door lock body is fixed to the left lock cover or the right lock cover by the cover plate. The cover plate is provided with an avoidance hole corresponding to the avoidance groove.

[0011] In some embodiments, a lock body is provided on one side of the lock cylinder, and a spring is arranged inside the lock body. The lock cylinder is provided with a lock hole corresponding to the spring, and a key slot is provided on the lock cylinder. The lock hole and the key slot are in communication.

[0012] In some embodiments, the left door base, right door base, left lock cover, and right lock cover are all semi-circular, and the door lock body is circular.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the beneficial effects that can be achieved by the above-mentioned at least one technical solution adopted in the embodiments of this specification include at least the following: the design of the two semicircles on the left and right sides of the door base allows the door lock to be opened from the right or left side during installation, which is more convenient to use; the locking groove and positioning pin locking design on the lock cylinder simplifies the internal structure of the door lock body and reduces the overall volume of the door lock. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view from this application;

[0017] Figure 2 This is a three-dimensional view of the internal structure in this application;

[0018] Figure 3 This is a perspective view of the left door base, right door base, and cover plate in this application;

[0019] Figure 4 This is a three-dimensional view of the internal structure of the door lock body in this application;

[0020] Figure 5 This is a sectional view of the main body of the door lock in this application;

[0021] Figure 6 This is a perspective view of the left locking cover in this application;

[0022] Figure 7 This is a perspective view of the right locking cover in this application;

[0023] Figure 8 This is a perspective view of the lock cylinder assembly in this application;

[0024] Figure 9 This is a perspective view of the internal structure of the lock cylinder and lock body in this application.

[0025] The component names corresponding to the various labels in the attached diagram are as follows: 1. Left door base; 2. Right door base; 3. Door lock body; 4. Mounting slot; 5. Left lock cover; 6. Right lock cover; 7. Left bolt; 8. Right bolt; 9. Lock cylinder; 10. Positioning pin; 11. Lock cylinder slot; 12. Positioning hole; 13. Clearance slot; 14. Locking slot; 15. Cover plate; 16. Clearance hole; 17. Lock body; 18. Spring body; 19. Lock hole; 20. Key slot. Detailed Implementation

[0026] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0027] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0029] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0030] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0031] Combination Figures 1-9 As shown, this application provides a rear door lock for a van, including a left door base 1, a right door base 2, and a lock body 3. The left door base 1 and right door base 2 are respectively installed on the left and right doors. Each of the left and right door bases has a mounting groove 4, in which a left lock cover 5 and a right lock cover 6 are respectively installed and fixed. The left and right lock covers 5 and 6 are hollow, and the lock body 3 is embedded between them. The lock body 3 is fixed to either the left or right lock cover 5. When the lock body 3 is fixed to the left lock cover 5, the left door can be opened when unlocking. When the lock body 3 is fixed to the right lock cover 6, the left door can be opened when unlocking. Opening the right door reveals that the left door base 1, right door base 2, left lock cover 5, and right lock cover 6 are all semi-circular, while the door lock body 3 is circular. The left lock cover 5 has a left latch 7, and the right lock cover 6 has a right latch 8. The door lock body 3 contains a lock cylinder assembly, which includes a lock cylinder 9 and positioning pins 10 symmetrically arranged on both sides of the lock cylinder 9. Both the left latch 7 and the right latch 8 are hook-shaped. The top of the lock cylinder 9 is positioned between the left latch 7 and the right latch 8. After the lock cylinder 9 descends, it can disengage from the left latch 7 and the right latch 8, at which point the left or right door can be opened. In normal conditions, the lock cylinder assembly is locked with the left latch 7 and the right latch 8. It can be unlocked by rotating the lock cylinder assembly with the key.

[0032] In some embodiments, such as Figure 4 , Figure 5 and Figure 7As shown, the door lock body 3 has a lock cylinder groove 11, a positioning hole 12, and a clearance groove 13. The lock cylinder 9 is rotatably installed in the lock cylinder groove 11. The positioning pin 10 is inserted into the positioning hole 12. The left latch 7 and the right latch 8 are placed in the clearance groove 13. The lock cylinder groove 11, the clearance groove 13, and the positioning hole 12 are connected. The bottom of the lock cylinder groove 11 passes through the door lock body 3. When unlocking, the lock cylinder 9 can pass through the lock cylinder groove 11 and move to the outside of the door lock body 3, thereby unlocking the lock cylinder 9, the left latch 7, and the right latch 8. The top of the lock cylinder 9 has symmetrical arc-shaped concave locking grooves 14 on both sides. The positioning pin 10 can be placed in the locking groove 14. One side of the locking groove 14 is flat. When the positioning pin 10 is placed inside the locking groove 14, the lock cylinder 9 cannot descend. After rotating the lock cylinder 9 with the key, the flat surface at its end can be made parallel to the positioning pin 10. At this time, the lock cylinder 9 is unlocked and can descend through the left latch 7 and the right latch 8, thereby opening the car door.

[0033] In some embodiments, such as Figure 3 , Figure 8 and Figure 9 As shown, the door lock body 3 is provided with a cover plate 15. The door lock body 3 is fixed to the left lock cover 5 or the right lock cover 6 by the cover plate 15. The cover plate 15 is provided with a clearance hole 16 corresponding to the clearance groove 13. The left lock tongue 7 and the right lock tongue 8 can pass through the clearance hole 16 and enter the clearance groove 13 to complete the installation. The lock cylinder 9 is provided with a lock body 17 on one side. The lock body 17 is provided with a spring 18 arranged inside the lock body 17. The lock cylinder 9 is provided with a lock hole 19 corresponding to the spring 18. The end of the spring 18 is inserted into the lock hole 19 to lock the lock cylinder 9. The lock cylinder 9 is provided with a key groove 20. The lock hole 19 and the key groove 20 are connected. After the key is inserted, the spring 18 is pushed out through the key groove 20 to unlock.

[0034] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.

[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rear door lock for a van, comprising a left door base (1), a right door base (2), and a lock body (3), wherein the left door base (1) and the right door base (2) are respectively installed on the left and right doors, characterized in that: The left door base (1) and the right door base (2) are both provided with mounting grooves (4). The left lock cover (5) and the right lock cover (6) are respectively installed in the mounting grooves (4). The left lock cover (5) and the right lock cover (6) are hollow. The door lock body (3) is embedded and assembled between the left lock cover (5) and the right lock cover (6). The door lock body (3) is fixed on the left lock cover (5) or the right lock cover (6). The left lock cover (5) is provided with a left latch (7). The right lock cover (6) is provided with a right latch (8). The door lock body (3) is provided with a lock cylinder assembly. The lock cylinder assembly is locked with the left latch (7) and the right latch (8). The lock cylinder assembly can be unlocked by rotating the key.

2. The rear door lock of the van according to claim 1, characterized in that, The lock cylinder assembly includes a lock cylinder (9) and positioning pins (10) symmetrically arranged on both sides of the lock cylinder (9). The left latch (7) and the right latch (8) are both hook-shaped, and the top of the lock cylinder (9) is placed between the left latch (7) and the right latch (8).

3. The rear door lock of the van according to claim 2, characterized in that, The door lock body (3) is provided with a lock cylinder groove (11), a positioning hole (12) and a clearance groove (13). The lock cylinder (9) is rotatably installed in the lock cylinder groove (11). The positioning pin (10) is inserted into the positioning hole (12). The left latch (7) and the right latch (8) are placed in the clearance groove (13).

4. The rear door lock of the van according to claim 3, characterized in that, The lock cylinder groove (11) is connected to the clearance groove (13) and the positioning hole (12), and the bottom of the lock cylinder groove (11) passes through the door lock body (3).

5. The rear door lock of the van according to claim 3, characterized in that, The top two sides of the lock cylinder (9) are symmetrically provided with arc-shaped concave locking grooves (14), and the positioning post (10) can be placed in the locking groove (14). One side of the locking groove (14) is a plane.

6. The rear door lock of the van according to claim 4, characterized in that, The door lock body (3) is provided with a cover plate (15), and the door lock body (3) is fixed on the left lock cover (5) or the right lock cover (6) by the cover plate (15). The cover plate (15) is provided with a clearance hole (16) corresponding to the clearance groove (13).

7. The rear door lock of the van according to claim 1, characterized in that, The lock cylinder (9) has a lock body (17) on one side, and a spring (18) is arranged inside the lock body (17). The lock cylinder (9) has a lock hole (19) corresponding to the spring (18).

8. The rear door lock of the van according to claim 7, characterized in that, The lock cylinder (9) is provided with a key slot (20), and the lock hole (19) is connected to the key slot (20).

9. The rear door lock of the van according to claim 1, characterized in that, The left door base (1), right door base (2), left lock cover (5) and right lock cover (6) are all semi-circular, and the door lock body (3) is circular.

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