Device for reinforcing door lock of commercial truck

Abstract

The utility model relates to the technical field of truck door locks, and discloses a commercial truck door lock strengthening device which comprises a first door leaf and a second door leaf, a first sleeve is fixedly installed on the front surface of the first door leaf, a fixing column is connected into the first sleeve in a sliding mode, and a lock catch is fixedly connected to the bottom of the fixing column. A second sleeve corresponding to the first sleeve and a fixing block corresponding to the lock catch are arranged on the front surface of the second door leaf, a mounting box is fixedly connected to one side of the second sleeve, and a limiting mechanism matched with the fixing column is arranged in the mounting box. A rotary knob is inserted into a sliding groove to extrude an inserting rod, so that the inserting rod moves forwards to extrude a connecting rod, the connecting rod pulls a pull rod when sliding, the pull rod drives a limiting rod to move downwards when moving, the limiting rod is inserted into a limiting hole of a fixing column, limiting is completed, and fixing of the door lock is enhanced. The locking effect of the door lock is enhanced, so that the safety of the door lock is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of truck door locks, in particular to a device for strengthening commercial truck door locks. Background Art

[0002] Currently, truck door lock reinforcement devices are devices used to enhance the security of truck door lock systems. These devices are usually used to prevent theft and illegal intrusion, and protect the safety of vehicles and cargo.

[0003] Truck door locks usually use fixed columns to fix the two doors of the rear box, and then use locks to fix them and lock the doors. However, the locks are generally sheet-shaped and fixed to the doors with rivets. A slight collision can easily cause them to deform or fall off, allowing the fixed columns to slide out easily, making it easy for the doors to open, causing the items in the cargo box to fall out, seriously affecting traffic safety. Utility Model Content

[0004] In order to solve the technical problem that the lock buckle is generally in sheet form and fixed to the box door with rivets, which may be easily deformed or fall off by a slight collision, so that the fixing column can easily slide out, thereby making the box door easy to open, causing the items in the cargo box to fall out and seriously affecting traffic safety, the utility model provides a device for strengthening the door lock of a commercial truck.

[0005] The utility model is implemented by the following technical scheme: a device for strengthening the door lock of a commercial truck, comprising a first door leaf and a second door leaf, a first sleeve fixedly installed on the front surface of the first door leaf, a fixing column slidably connected inside the first sleeve, a lock buckle fixedly connected at the bottom of the fixing column, a second sleeve corresponding to the first sleeve and a fixing block corresponding to the lock buckle are arranged on the front surface of the second door leaf, a mounting box is fixedly connected to one side of the second sleeve, a limiting mechanism matched with the fixing column is arranged inside the mounting box, and the fixing column is used for strengthening locking and limiting.

[0006] As a further improvement of the above scheme, the limiting mechanism includes a mounting seat arranged inside the mounting box and a fixing seat fixedly installed at the upper and lower ends of the mounting box, a spring is arranged inside the mounting seat, and the top end of the spring is fixedly connected to a connecting rod sliding inside the mounting seat.

[0007] Through the above technical solution, when the connecting rod is squeezed, it will slide inside the mounting seat and squeeze the spring.

[0008] As a further improvement of the above solution, the fixing seat is internally slidably connected with a limit rod, one side of the limit rod passes through the fixing seat and is rotatably connected with a pull rod, and one end of the pull rod is rotatably connected to the connecting rod.

[0009] Through the above technical solution, when the connecting rod slides, the limiting column is pulled downward, so that the limiting column is inserted into the limiting hole, completing the fixation of the fixing column, so that the door can be kept fixed even when the lock buckle is disengaged from the fixing block, thereby improving the stability of the door lock and thus improving the safety performance.

[0010] As a further improvement of the above scheme, a through groove is provided inside the fixed column, an insertion rod is slidably connected inside the through groove, a sliding groove is obliquely provided at one end of the insertion rod, and a limiting hole corresponding to the limiting rod is opened at one end of the fixed column.

[0011] As a further improvement of the above solution, the front surface of the second sleeve is threadedly connected with a knob, and the knob and the insertion rod are arranged correspondingly.

[0012] Through the above technical solution, the knob is rotated so that the knob moves downward, thereby squeezing the insertion rod, causing the insertion rod to move forward and push the connecting rod to slide.

[0013] As a further improvement of the above solution, the fixing column slides inside the second sleeve, and an opening for the lock buckle to slide is opened inside the first sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model enables the knob to move downward through the thread when it is rotated, so that the knob is inserted into the slide groove to squeeze the insertion rod, so that the insertion rod moves forward through the through groove, and the insertion rod moves to squeeze the connecting rod. The connecting rod squeezes the spring and pulls the pull rod when it slides. When the pull rod moves, it drives the limit rod connected to it to move downward in the fixed seat, so that the limit rod is inserted in the limit hole of the fixed column, completing the limit and strengthening the fixation of the door lock. This design can perform secondary limit when the door lock is locked, thereby strengthening the locking effect of the door lock and thus enhancing the safety of the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the door lock connection of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the structure of the connection between the knob and the plug rod.

[0019] Description of main symbols:

[0020] 1. First door leaf; 2. Second door leaf; 3. First sleeve; 4. Second sleeve; 5. Fixed column; 6. Lock catch; 7. Fixed block; 8. Insert rod; 9. Slide groove; 10. Through groove; 11. Knob; 12. Installation box; 13. Installation seat; 14. Spring; 15. Connecting rod; 16. Pull rod; 17. Fixed seat; 18. Limit rod; 19. Limit hole. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] Example:

[0023] Please combine Figure 1 - Figure 3 A device for strengthening a door lock of a commercial truck in this embodiment includes a first door leaf 1 and a second door leaf 2. A first sleeve 3 is fixedly installed on the front surface of the first door leaf 1. A fixing column 5 is slidably connected inside the first sleeve 3. A lock buckle 6 is fixedly connected to the bottom of the fixing column 5. A second sleeve 4 corresponding to the first sleeve 3 and a fixing block 7 corresponding to the lock buckle 6 are provided on the front surface of the second door leaf 2. An installation box 12 is fixedly connected to one side of the second sleeve 4. A limiting mechanism matched with the fixing column 5 is provided inside the installation box 12 for strengthening locking and limiting the fixing column 5.

[0024] Please combine Figure 2 The limiting mechanism includes a mounting seat 13 arranged inside the mounting box 12 and a fixing seat 17 fixedly installed at the upper and lower ends of the mounting box 12. A spring 14 is arranged inside the mounting seat 13, and the top end of the spring 14 is fixedly connected to a connecting rod 15 that slides inside the mounting seat 13.

[0025] When the connecting rod 15 is pressed, it slides inside the mounting seat 13 and presses the spring 14 .

[0026] Please combine Figure 2 A limiting rod 18 is slidably connected inside the fixing seat 17 , one side of the limiting rod 18 passes through the fixing seat 17 and is rotatably connected to a pull rod 16 , and one end of the pull rod 16 is rotatably connected to the connecting rod 15 .

[0027] When the connecting rod 15 slides, it pulls the limiting rod 18 downward, so that the limiting rod 18 is inserted into the limiting hole 19, completing the fixation of the fixing column 5, so that the lock buckle 6 can also keep the box door fixed when it is disengaged from the fixing block 7, thereby improving the stability of the door lock and thus improving the safety performance.

[0028] Please combine Figure 3A through slot 10 is provided inside the fixed column 5, and an insertion rod 8 is slidably connected inside the through slot 10. A sliding slot 9 is obliquely provided at one end of the insertion rod 8, and a limiting hole 19 corresponding to the limiting rod 18 is opened at one end of the fixed column 5.

[0029] Please combine Figure 3 The front surface of the second sleeve 4 is threadedly connected with a knob 11, and the knob 11 and the insertion rod 8 are arranged correspondingly.

[0030] The knob 11 is rotated so that the knob 11 moves downward, thereby squeezing the insertion rod 8, so that the insertion rod 8 moves forward, pushing the connecting rod 15 to slide.

[0031] Please combine Figure 2 The fixing column 5 slides inside the second sleeve 4, and an opening for the lock buckle 6 to slide is opened inside the first sleeve 3.

[0032] The implementation principle of a device for strengthening the door lock of a commercial truck in the embodiment of the present application is as follows: when working, the truck box door is closed, the fixing column 5 is pulled into the second sleeve 4 through the lock buckle 6, the lock buckle 6 is buckled on the fixing block 7, and it is locked with the lock, and then the knob 11 is rotated. The knob 11 moves downward through the thread when rotating, so that the knob 11 is inserted into the slide groove 9 to squeeze the insertion rod 8, so that the insertion rod 8 moves forward through the through groove 10, and the insertion rod 8 moves to squeeze the connecting rod 15. The connecting rod 15 squeezes the spring 14 and pulls the pull rod 16 when sliding. When the pull rod 16 moves, it drives the limit rod 18 connected thereto to move downward in the fixing seat 17, so that the limit rod 18 is inserted into the limit hole 19 of the fixing column 5, completing the limit and strengthening the fixation of the door lock. When removing it, the knob 11 is rotated in the opposite direction to disengage the insertion rod 8, the spring 14 pushes the connecting rod 15 to reset, the limit rod 18 disengages from the limit hole 19, and the fixing column 5 can be pulled out.

[0033] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A device for strengthening a door lock of a commercial truck, comprising a first door leaf (1) and a second door leaf (2), characterized in that: A first sleeve (3) is fixedly installed on the front surface of the first door leaf (1), a fixing column (5) is slidably connected inside the first sleeve (3), a lock buckle (6) is fixedly connected to the bottom of the fixing column (5), a second sleeve (4) corresponding to the first sleeve (3) and a fixing block (7) corresponding to the lock buckle (6) are provided on the front surface of the second door leaf (2), a mounting box (12) is fixedly connected to one side of the second sleeve (4), a limiting mechanism matched with the fixing column (5) is provided inside the mounting box (12), and the fixing column (5) is used for strengthening the locking and limiting of the fixing column (5).

2. A commercial truck door lock strengthening device as claimed in claim 1, characterized in that: The limiting mechanism comprises a mounting seat (13) arranged inside the mounting box (12) and a fixing seat (17) fixedly mounted at the upper and lower ends of the mounting box (12); a spring (14) is arranged inside the mounting seat (13); and a top end of the spring (14) is fixedly connected to a connecting rod (15) sliding inside the mounting seat (13).

3. A commercial truck door lock strengthening device as claimed in claim 2, characterized in that: The fixing seat (17) is internally slidably connected to a limiting rod (18), one side of the limiting rod (18) passes through the fixing seat (17) and is rotatably connected to a pull rod (16), and one end of the pull rod (16) is rotatably connected to a connecting rod (15).

4. A commercial truck door lock strengthening device as claimed in claim 1, characterized in that: A through slot (10) is provided inside the fixing column (5), an insert rod (8) is slidably connected inside the through slot (10), a sliding slot (9) is obliquely provided at one end of the insert rod (8), and a limiting hole (19) corresponding to the limiting rod (18) is opened at one end of the fixing column (5).

5. A commercial truck door lock strengthening device as claimed in claim 1, characterized in that: The front surface of the second sleeve (4) is threadedly connected with a knob (11), and the knob (11) and the insertion rod (8) are arranged correspondingly.

6. A commercial truck door lock strengthening device as claimed in claim 1, characterized in that: The fixing column (5) slides inside the second sleeve (4), and an opening for sliding with the lock buckle (6) is provided inside the first sleeve (3).

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