A lock case structure that is easy to assemble

By using a dovetail groove to engage with a slider and a knob-driven locking mechanism to engage the locking block in the slot, the assembly process of the lock box is simplified, solving the problem of complex assembly of existing lock box structures, improving assembly efficiency and reducing maintenance difficulty and cost.

CN224396200UActive Publication Date: 2026-06-23GUANGDONG LIBAI HARDWARE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG LIBAI HARDWARE CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing lock box structure is complex to assemble, requiring various tools and cumbersome steps, which is time-consuming, labor-intensive, increases labor costs, and is difficult to maintain.

Method used

The initial connection between the box body and the side panel is achieved by using a dovetail groove and a slider. The positioning groove and positioning block achieve the initial positioning of the cover plate. The locking mechanism uses a knob to drive the connecting rod to drive the locking block to engage with the slot to complete the locking, simplifying the assembly process.

Benefits of technology

It greatly simplifies the assembly process, improves assembly efficiency, reduces labor costs, facilitates quick and easy maintenance or replacement of parts, reduces maintenance difficulty and cost, and enhances the practicality and reliability of the lock box.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224396200U_ABST
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Abstract

The application relates to the technical field of locks, and discloses a lock box structure convenient to assemble, which comprises a box body, side plates and a cover plate. The side plates are arranged on the outer walls of the two sides of the box body, the cover plate is arranged on the outer walls of the box body and the side plates, the outer wall of the cover plate is provided with a locking mechanism, the locking mechanism comprises a traction rod one, a first connecting rod, a first clamping block, a traction rod two, a second connecting rod and a second clamping block, the traction rod two and the traction rod one are rotationally connected to the middle outer wall of the cover plate through pivots, and the two first connecting rods are rotationally connected to the outer walls of the two ends of the traction rod one. In the utility model, dovetail grooves and sliding blocks are matched to realize the preliminary connection of the box body and the side plates, positioning grooves and positioning blocks are matched to realize the preliminary positioning of the cover plate, the knob of the locking mechanism is used for driving the connecting rod to drive the clamping block to clamp the clamping groove to complete locking, the complicated screw tightening operation is not needed, the assembly process is greatly simplified, and the assembly efficiency is remarkably improved.
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Description

Technical Field

[0001] This application relates to the field of lock technology, and in particular to a lock box structure that is easy to assemble. Background Technology

[0002] In existing lock box structures, the assembly process is often quite complex, requiring the use of various tools and cumbersome steps;

[0003] For example, traditional lock boxes are usually fixed by multiple parts with screws, nuts and other connectors. During assembly, each screw hole needs to be aligned and the screws tightened one by one, which is not only time-consuming and labor-intensive, but also prone to problems such as stripped screws and misaligned parts, reducing production efficiency.

[0004] Furthermore, the complex assembly process requires highly skilled assembly workers, increasing labor costs. In addition, the complex assembly structure is not conducive to later maintenance and replacement of parts. Once a component is damaged, the entire lock box needs to be disassembled, which is difficult and costly to repair. Therefore, a lock box structure that is easy to assemble is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a lock box structure that is easy to assemble, so as to solve the problems mentioned in the background art.

[0006] The lock box structure provided in this application, which is easy to assemble, adopts the following technical solution:

[0007] A lock box structure that is easy to assemble includes a box body, side panels and a cover plate. There are two side panels, which are respectively disposed on the outer walls of the two sides of the box body. The cover plate is installed on the outer walls of the box body and the side panels, and a locking mechanism is installed on the outer wall of the cover plate.

[0008] The locking mechanism includes a first traction rod, a first connecting rod, a first locking block, a second traction rod, a second connecting rod, and a second locking block. The second traction rod and the first traction rod are rotatably connected to the middle outer wall of the cover plate via a rotating shaft. The two first connecting rods are rotatably connected to the outer walls of both ends of the first traction rod. The ends of the two first connecting rods away from the first traction rod are respectively hinged to the top outer walls of the two first locking blocks.

[0009] The two second connecting rods are rotatably connected to the outer walls of both ends of the second traction rod, and the ends of the two second connecting rods away from the second traction rod are respectively connected to the top outer walls of the two second locking blocks.

[0010] Preferably, the locking mechanism further includes a mounting cylinder and a spring. The mounting cylinder is fixedly connected to the outer wall of the cover plate on the side away from the locking mechanism. The spring is installed inside the mounting cylinder. One end of the rotating shaft away from the second traction rod and the first traction rod passes through the box and the mounting cylinder and is fixedly connected to a knob. One end of the spring is fixedly connected to the inner wall of the mounting cylinder, and the other end is fixedly connected to the outer wall of the rotating shaft.

[0011] Preferably, the outer wall of the cover plate is fixedly connected to two first guide rails and two second guide rails, the first guide rails and the second guide rails are arranged perpendicular to each other, wherein the first locking block is slidably connected to the outer wall of the first guide rail, and the second locking block is slidably connected to the outer wall of the second guide rail.

[0012] Preferably, the outer walls of the upper and lower sides of the box body are provided with second slots, the outer walls of the two side plates are provided with first slots, the two second slots are engaged with the second slots at the ends of the two second slots facing the box body, and the two first slots are engaged with the first slots at the ends of the two first slots facing the box body.

[0013] Preferably, the outer wall of the cover plate is fixedly connected with a plurality of limiting blocks, and the plurality of limiting blocks abut against the outer wall of the traction rod.

[0014] Preferably, the edge of the cover plate is provided with multiple positioning grooves, and the outer wall of one of the side plates of the box body is fixedly connected with a positioning block that is adapted to and engages with the multiple positioning grooves.

[0015] Preferably, the inner wall of the box body corresponding to the side plate is provided with multiple dovetail grooves, and the two outer walls of the side plate are fixedly connected with sliders, which are adapted to and inserted into the dovetail grooves.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] 1. This lock box structure uses a dovetail groove and a slider to achieve initial connection between the box body and the side plate. The cover plate is initially positioned by the positioning groove and the positioning block. The locking mechanism uses a knob to drive the connecting rod to drive the locking block to engage with the slot to complete the locking. There is no need for cumbersome screw tightening operations, which greatly simplifies the assembly process and significantly improves assembly efficiency.

[0018] 2. This structure is easy to operate, reducing the technical requirements for assembly workers and thus effectively reducing labor costs. In terms of maintenance, traditional lock boxes require complete disassembly due to their complex structure, which is difficult and costly. If any part of this lock box is damaged, it can be unlocked by turning a knob, making it convenient and quick to disassemble the corresponding part for repair or replacement, greatly reducing the difficulty and cost of maintenance. In addition, the spring provides stable holding force, and the limit block ensures locking accuracy and component safety, further enhancing the practicality and reliability of the lock box. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of an embodiment of the application;

[0020] Figure 2 This is an exploded view of an embodiment of the application;

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a partially exploded cross-sectional view of the structure of the embodiment of the application;

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0024] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Side plate; 3. Cover plate; 4. Dovetail groove; 5. Slider; 6. Rotating shaft; 7. Traction rod one; 8. First connecting rod; 9. First locking block; 10. Traction rod two; 11. Second connecting rod; 12. Second locking block; 13. Limiting block; 14. First guide rail; 15. Second guide rail; 16. Mounting cylinder; 17. Spring; 18. Knob; 19. Positioning groove; 20. Positioning block; 21. First locking groove; 22. Second locking groove. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a lock box structure that is easy to assemble. (Refer to...) Figure 1-5 A lock box structure that is easy to assemble includes a box body 1, two side plates 2 and a cover plate 3. In the actual assembly process, the side plates 2 are connected to the box body 1 by a dovetail groove 4 and a slider 5. The inner walls of the box body 1 and the side plates 2 are provided with multiple dovetail grooves 4. The two outer walls of the side plates 2 are fixedly connected to sliders 5. The sliders 5 are aligned with the dovetail grooves 4, and the side plates 2 are pushed along the direction of the dovetail grooves 4 so that the sliders 5 are fully embedded in the dovetail grooves 4. This achieves the initial positioning and connection between the side plates 2 and the box body 1. This connection method is easy to install and has high stability.

[0027] After connecting the side panel 2 to the box body 1, the cover plate 3 is installed. The cover plate 3 has multiple positioning grooves 19 on its edge. The outer wall of the box body 1 and one of the side panels 2 is fixedly connected to a positioning block 20 that is compatible with and engages with the positioning groove 19. The cover plate 3 is placed above the box body 1 and the side panel 2, so that the positioning block 20 is aligned with the positioning groove 19. The cover plate 3 is slowly lowered, and the positioning block 20 is engaged with the positioning groove 19, completing the initial positioning of the cover plate 3 and preventing the cover plate 3 from shifting in subsequent operations.

[0028] The locking mechanism installed on the outer wall of the cover plate 3 is the key part to achieve a tight connection of the lock box. The locking mechanism includes a first traction rod 7, a second traction rod 10, a first connecting rod 8, a second connecting rod 11, a first locking block 9, a second locking block 12, a mounting cylinder 16, and a spring 17. The second traction rod 10 and the first traction rod 7 are rotatably connected to the middle outer wall of the cover plate 3 through a rotating shaft 6. The two first connecting rods 8 are rotatably connected to the outer walls of both ends of the first traction rod 7, and the end of the first connecting rod 8 away from the first traction rod 7 is hinged to the top outer wall of the first locking block 9. The two second connecting rods 11 are rotatably connected to the outer walls of both ends of the second traction rod 10, and the end of the second connecting rod 11 away from the second traction rod 10 is hinged to the top outer wall of the second locking block 12.

[0029] Two first guide rails 14 and two second guide rails 15 are fixedly connected to the outer wall of the cover plate 3. The first guide rails 14 and the second guide rails 15 are arranged perpendicular to each other. The first locking block 9 is slidably connected to the outer wall of the first guide rail 14, and the second locking block 12 is slidably connected to the outer wall of the second guide rail 15. The mounting cylinder 16 is fixedly connected to the outer wall of the cover plate 3 on the side away from the locking mechanism. The spring 17 is installed inside the mounting cylinder 16. The end of the rotating shaft 6 away from the second traction rod 10 and the first traction rod 7 passes through the box body 1 and the mounting cylinder 16 and is fixedly connected to the knob 18. One end of the spring 17 is fixedly connected to the inner wall of the mounting cylinder 16, and the other end is fixedly connected to the outer wall of the rotating shaft 6.

[0030] When it is necessary to lock the lock box, first rotate the knob 18. The knob 18 drives the rotating shaft 6 to rotate. Since the first traction rod 7 and the second traction rod 10 are both rotatably connected to the middle outer wall of the cover plate 3 through the rotating shaft 6, the rotation of the rotating shaft 6 will synchronously drive the first traction rod 7 and the second traction rod 10 to rotate around the rotating shaft 6.

[0031] When the first traction rod 7 rotates, it drives the first connecting rod 8, which is hinged at both ends, to move. The first connecting rod 8 pulls the first locking block 9 to slide inward on the first guide rail 14. At the same time, the second traction rod 10 rotates, driving the second connecting rod 11, which is hinged at both ends, to move. The second connecting rod 11 pulls the second locking block 12 to slide inward on the second guide rail 15, so that the two second locking blocks 12 and the two first locking blocks 9 retract inward. During the rotation of the rotating shaft 6, one end of the spring spring 17, which is fixedly connected to the rotating shaft 6, is fixed to the inner wall of the mounting cylinder 16, and the other end deforms with the rotation of the rotating shaft 6, so that the spring spring 17 is in a stored state.

[0032] Next, align and engage the positioning groove 19 on the cover plate 3 with the positioning block 20 on the box body 1 and the side plate 2, so that the cover plate 3 is initially fixed above the box body 1 and the side plate 2. At this time, there are two second locking blocks 12 and two first locking blocks 9.

[0033] When the positions of the first locking block 9 and the second locking block 12 roughly correspond to the second locking groove 22 of the box body 1 and the first locking groove 21 of the side plate 2, the knob 18 is released. Under the elastic force of the spring 17, the first traction rod 7 and the second traction rod 10 rotate in opposite directions to reset. The first connecting rod 8 and the second connecting rod 11 push the first locking block 9 into the first locking groove 21 of the side plate 2 and the second locking block 12 into the second locking groove 22 of the box body 1, thereby achieving a tight lock between the cover plate 3, the box body 1 and the side plate 2. Furthermore, the spring 17 is always in a charged state, providing a stable holding force for the locking structure and ensuring that it will not easily loosen during use.

[0034] Reference Figure 4 and Figure 2 Multiple limiting blocks 13 are fixedly connected to the outer wall of the cover plate 3. During the rotation of the traction rod 7, they abut against the outer wall to limit the rotation angle of the traction rod 7, ensuring that the first locking block 9 and the second locking block 12 can be accurately locked into the corresponding slots, while preventing the traction rod 7 from rotating excessively and causing damage to other components.

[0035] When it is necessary to open the lock box, rotate the knob 18 in the opposite direction. The rotating shaft 6 drives the second traction rod 10 and the first traction rod 7 to rotate. The first connecting rod 8 and the second connecting rod 11 drive the first locking block 9 and the second locking block 12 to exit from the slot, so that the cover plate 3 can be easily removed and the unlocking operation can be completed.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lock case structure which is easy to assemble, characterized by: It includes a box body (1), side panels (2) and a cover plate (3). There are two side panels (2), which are respectively located on the outer walls of the two sides of the box body (1). The cover plate (3) is installed on the outer walls of the box body (1) and the side panels (2). A locking mechanism is installed on the outer wall of the cover plate (3). The locking mechanism includes a first traction rod (7), a first connecting rod (8), a first locking block (9), a second traction rod (10), a second connecting rod (11), and a second locking block (12). The second traction rod (10) and the first traction rod (7) are rotatably connected to the middle outer wall of the cover plate (3) through a rotating shaft (6). The two first connecting rods (8) are rotatably connected to the outer walls of both ends of the first traction rod (7). The ends of the two first connecting rods (8) away from the first traction rod (7) are respectively hinged to the top outer walls of the two first locking blocks (9). The two second connecting rods (11) are rotatably connected to the outer walls of both ends of the second traction rod (10), and the ends of the two second connecting rods (11) away from the second traction rod (10) are respectively connected to the top outer walls of the two second blocks (12).

2. A lock case structure for easy assembly according to claim 1, characterized in that: The locking mechanism also includes a mounting cylinder (16) and a spring (17). The mounting cylinder (16) is fixedly connected to the outer wall of the cover plate (3) on the side away from the locking mechanism. The spring (17) is installed inside the mounting cylinder (16). The end of the rotating shaft (6) away from the second traction rod (10) and the first traction rod (7) passes through the box body (1) and the mounting cylinder (16) and is fixedly connected to a knob (18). One end of the spring (17) is fixedly connected to the inner wall of the mounting cylinder (16), and the other end is fixedly connected to the outer wall of the rotating shaft (6).

3. A lock case structure for easy assembly according to claim 1, characterized in that: The outer wall of the cover plate (3) is fixedly connected to two first guide rails (14) and two second guide rails (15). The first guide rails (14) and the second guide rails (15) are arranged perpendicular to each other. The first locking block (9) is slidably connected to the outer wall of the first guide rail (14), and the second locking block (12) is slidably connected to the outer wall of the second guide rail (15).

4. A lock case structure for easy assembly according to claim 1, characterized in that: The upper and lower outer walls of the box body (1) are provided with second slots (22), and the outer walls of the two side plates (2) are provided with first slots (21). The two second slots (12) are engaged with the second slots (22) at one end facing the box body (1), and the two first slots (9) are engaged with the first slots (21) at one end facing the box body (1).

5. A lock case structure for easy assembly according to claim 1, characterized in that: The outer wall of the cover plate (3) is fixedly connected with a plurality of limiting blocks (13), and the plurality of limiting blocks (13) abut against the outer wall of the traction rod (7).

6. A lock case structure for easy assembly according to claim 1, characterized in that: The edge of the cover plate (3) is provided with multiple positioning grooves (19), and the outer wall of the box body (1) and one of the side plates (2) are fixedly connected with positioning blocks (20) that are adapted to and engaged with the multiple positioning grooves (19).

7. A lock case structure for easy assembly according to claim 1, characterized in that: The inner wall of the box body (1) corresponding to the side plate (2) is provided with multiple dovetail grooves (4), and the two outer walls of the side plate (2) are fixedly connected with sliders (5), and the sliders (5) are adapted to the dovetail grooves (4) for insertion.