A cabinet body with a buckle locking fixing device
By using the triangular locking structure of the latching and locking device and the sliding base plate limiter, the problem of the power module not being securely locked in the cabinet is solved, achieving stable fixation and rapid installation of the power module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN HANGJIU ELECTRIC
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-09
AI Technical Summary
Existing power modules in the cabinet have low frictional resistance from the pins, making it difficult to effectively restrict the module's freedom of movement, resulting in unstable locking. In addition, the internal space of the cabinet is limited, so a simple and small latch locking device is needed.
The device uses a latch locking mechanism, which forms a triangular locking structure with the latch locking head and locking nut. Combined with the sliding base plate and limit block, it restricts the forward and backward movement of the power module and does not require any other tools for installation.
It achieves a secure fixation between the power module and the cabinet, is easy to operate, quick to install, and is not easily loosened.
Smart Images

Figure CN224343571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic equipment technology, specifically to a cabinet with a buckle locking device. Background Technology
[0002] Existing power supply equipment has many modular functional units. To make the equipment configuration more flexible, these functional units are generally designed as independent modules. Currently, a large number of power supply modules are used in the power transmission and distribution industry.
[0003] Utility model CN215956785U discloses a positioning component in a pluggable power module. This device uses a positioning component with a positioning function, allowing it to slide and be fixed at a point inside the module panel, thus achieving positioning of the component on the module panel and enabling reliable insertion and removal of the pin to lock or unlock the pluggable power module. However, in implementation, due to the low frictional resistance of the pin, relying on the pin to lock the power module makes it difficult to restrict the module's freedom of movement. Furthermore, due to the limited internal space of the cabinet, a simple, small-sized, and easy-to-install latch locking device is required. Therefore, a cabinet with a latch locking device is proposed to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a cabinet with a latch locking device, which has the advantages of secure locking, simple structure, and easy installation, and solves the technical problem of unstable module locking caused by the degree of freedom of module movement.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A cabinet with a latch locking device includes a cabinet body and a power module, wherein the power module and the cabinet body are provided with a latch locking device.
[0007] The rear end of the power module extends outward to form a latch locking head.
[0008] The cabinet is fixed with a limit block, and the power module is provided with a corresponding positioning rod. The inner end of the limit block is provided with a limit hole. When the power module slides forward, the positioning rod is inserted axially into the limit hole, which restricts the power module from sliding forward further.
[0009] The cabinet is rotatably connected to one end of a connecting rod, the other end of which is threaded, and a locking nut is threaded onto the connecting rod.
[0010] The locking nut has an outwardly extending locking edge around its outer perimeter, which is angled downwards, forming a latching locking space between the locking edge and the connecting rod.
[0011] Rotate the locking nut downwards, and the locking nut presses tightly against the latch locking head that extends into the latch locking space to prevent the latch locking head from coming out backwards.
[0012] Furthermore, the power module has a mounting foot fixed at its rear end. The mounting foot is L-shaped, with one side fixedly connected to the power module and the other side extending outward to form the latch locking head.
[0013] Furthermore, the upper side of the buckle locking head is arched.
[0014] Furthermore, the cabinet is fixed with a sliding base plate, the upper end of which is provided with a sliding groove, the power module is movably placed in the sliding groove and slides back and forth, and the front end of the sliding base plate is provided with the limiting block.
[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0016] This device uses downward rotation of the locking nut to press it tightly against the latch locking head that extends into the latch locking space. This creates a stable locking structure between the locking nut, the latch locking head, and the connecting rod, restricting the power module's forward and backward movement. Combined with the sliding base plate, this ensures the power module is firmly fixed to the cabinet and is not easily loosened. Furthermore, no other tools are needed during the fixing of the power module, making it convenient to operate and quick to install. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is an exploded view of the present invention;
[0019] Figure 3 for Figure 2 Enlarged view of point A;
[0020] Figure 4 This is a schematic diagram of the locking nut structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the mounting foot structure of this utility model;
[0022] Figure 6 This is a schematic diagram of the limiting block structure of this utility model.
[0023] In the diagram: 1-Cabinet; 2-Power module; 3-Support; 4-Mounting foot; 41-Latch locking head; 5-Connecting rod; 6-Connecting assembly; 61-Shaft; 62-Snap ring; 7-Locking nut; 701-Latch locking space; 8-Limit block; 801-Limit hole; 9-Sliding base plate; 901-Slide groove; 10-Positioning rod. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] Please see Figure 1-6 This embodiment includes a cabinet with a latch locking device, comprising:
[0026] Cabinet 1, used to support the power module 2 placed on it.
[0027] Power module 2, which is detachably connected to cabinet 1,
[0028] A latch locking device is provided between the power module 2 and the cabinet 1.
[0029] The cabinet 1 is fixed with a sliding base plate 9, and the upper end of the sliding base plate 9 is provided with a sliding groove 901. The power module 2 is movably placed in the sliding groove 901 and slides back and forth.
[0030] The sliding base plate 9 has a limiting block 8 at its front end, and the power module 2 has a corresponding positioning rod 10. The limiting block 8 has a limiting hole 801 at its inner end. When the power module 2 slides forward, the positioning rod 10 is inserted axially into the limiting hole 801, which restricts the power module 2 from sliding forward further. When fixing, it can be pushed forward directly. The operation is simple and the positioning rod 82 and the insertion hole have high accuracy.
[0031] At the final position of the forward movement of power module 2, power module 2 has just slid into the slide groove 901.
[0032] The power module 2 has a mounting foot 4 fixed at the rear end. The mounting foot 4 is L-shaped, with one side fixedly connected to the power module 2 and the other side extending outward to form a latch locking head 41.
[0033] The upper side of the latch locking head 41 is arched, which can fit together with the locking edge of the locking nut 7, making the device more adaptable.
[0034] A support 3 is provided on one side of the cabinet 1. The support 3 is located below the sliding base plate 9. One end of the connecting rod 5 is rotatably connected to the support 3. The other end of the connecting rod 5 is a threaded section. A locking nut 7 is threadedly connected to the connecting rod 5.
[0035] The locking nut 7 has a locking edge extending outward around its outer perimeter. The locking edge is set diagonally downward, and a latching locking space 701 is formed between the locking edge and the connecting rod 5.
[0036] During operation, the limiting block 8 and the support 3 are pre-fixed to the cabinet 1 using fasteners, and the mounting foot 4 is fixed to the power module 2. The connecting rod 5 is then rotated to a position near the lower side of the latch locking head 41, and the locking nut 7 is rotated downwards. The locking nut 7 presses tightly against the latch locking head 41, which extends into the latch locking space 701. The locking nut 7, the latch locking head 41, and the connecting rod 5 form a triangular locking structure. At this time, the latch locking head 41 restricts the locking nut 7 and the connecting rod 5 from rotating downwards together. Simultaneously, the locking nut 7 presses against the outer side of the vertical edge of the L-shaped mounting foot 4, restricting the locking nut 7 and the connecting rod 5 from rotating upwards together. This prevents the latch locking head 41 from dislodging backwards from the slide groove 901. This ensures the power module is firmly fixed to the cabinet and is not easily loosened. Furthermore, no other tools are needed during the fixing of the power module, making operation convenient and installation fast.
[0037] In this application, the support 3 and the connecting rod 5 are rotatably connected by the connecting assembly 6. The connecting assembly 6 includes a shaft 61. The support 3 is provided with a connecting through hole. The shaft 61 is located in the connecting through hole. The connecting rod 5 is connected to the shaft 61. One end of the shaft 61 is secured by a snap ring 62. The snap ring 62 is used to prevent the shaft 61 from coming out of the connecting through hole.
[0038] After inserting the shaft 61 into the connecting through hole, it is secured by the snap ring 62, allowing the connecting rod 5 to rotate up and down to adjust the angle, making operation more convenient.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cabinet with a latch locking device, comprising a cabinet (1) and a power module (2), characterized in that: A latch locking device is provided between the power module (2) and the cabinet (1). The power module (2) extends outward from the rear end to form a latch locking head (41). The cabinet (1) is fixed with a limit block (8), and the power module (2) is provided with a corresponding positioning rod (10). The inner end of the limit block (8) is provided with a limit hole (801). The power module (2) slides forward, so that the positioning rod (10) is inserted axially into the limit hole (801), which restricts the power module (2) from sliding forward further. The cabinet (1) is rotatably connected to one end of a connecting rod (5), the other end of the connecting rod (5) is a threaded section, and a locking nut (7) is threaded onto the connecting rod (5). The locking nut (7) has a locking edge extending outward around its outer perimeter. The locking edge is set diagonally downward, and a latching locking space (701) is formed between the locking edge and the connecting rod (5). Rotate the locking nut (7) downwards, and the locking nut (7) presses against the latch locking head (41) that extends into the latch locking space (701) to prevent the latch locking head (41) from coming out backwards.
2. The cabinet with a latch locking device according to claim 1, characterized in that: The power module (2) has a mounting foot (4) fixed at its rear end. The mounting foot (4) is L-shaped, with one side fixedly connected to the power module (2) and the other side extending outward to form the latch locking head (41).
3. A cabinet with a latch locking device according to claim 2, characterized in that: The upper side of the buckle locking head (41) is arched.
4. A cabinet with a latch locking device according to claim 1, characterized in that: The cabinet (1) is fixed with a sliding base plate (9), and the upper end of the sliding base plate (9) is provided with a sliding groove (901). The power module (2) is movably placed in the sliding groove (901) and slides back and forth. The front end of the sliding base plate (9) is provided with the limiting block (8).