Fabricated low-voltage wire inlet cabinet

By designing limit components and sliding pointers, the interference problem during the installation of prefabricated low-voltage switchgear is solved, improving assembly efficiency and intuitive judgment of the position of the switchgear.

CN223487614UActive Publication Date: 2025-10-28SHENZHEN ZHENXING ELECTRIC APPLIANCE EQUIP CO LTD
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Patent Information

Application Number
CN202422900230.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-28
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing prefabricated low-voltage switchgear is subject to interference from the cabinet frame during installation, affecting maintenance or installation efficiency.

Method used

A limiting assembly including a card plate, threaded groove, screw, wrench holder, and pointer is designed. By rotating the wrench holder in reverse, the screw is driven to rotate, causing the card plate to separate from the cabinet. The design of the groove and pointer makes it easy to intuitively judge the position of the card plate.

Benefits of technology

It reduces interference from electrical components and wiring, improves assembly efficiency, and makes the position of the pallet more intuitive.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembly-type low-voltage wire inlet cabinet, which comprises a cabinet body and a limiting assembly, an installation plate is arranged at the rear end of the cabinet body, a movable groove is formed in the front end of the bottom of the installation plate, and the limiting assembly used for reducing line arrangement interference is installed in the movable groove. The limiting assembly comprises a clamping plate, a threaded groove, a screw rod, a wrench seat and a pointer, the threaded groove is formed in the middle of the clamping plate, the inner wall of the threaded groove is in threaded connection with the screw rod, the wrench seat is fixedly mounted at the tail end of the screw rod, the pointer is fixedly mounted on the right side of the clamping plate, and a frame is fixedly mounted at the front end of the mounting plate. The whole frame is of a U-shaped structure, heat dissipation holes are formed in the two sides of the cabinet body, and the whole heat dissipation holes are of a square structure. According to the assembled low-voltage inlet wire cabinet, interference on electrical components or wiring can be reduced, and whether the clamping plates are clamped in place or not can be visually observed at the same time.
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Description

Technical Field

[0001] This utility model relates to the field of low-voltage incoming line cabinet technology, specifically an assembled low-voltage incoming line cabinet. Background Technology

[0002] Low-voltage incoming switchgear is an important piece of equipment in a power system. It is generally located after the transformer and serves as the starting point for power distribution and control. It is also known as the main switchgear. It is mainly used to control all electrical equipment below it and is usually equipped with a frame circuit breaker as the main switch to ensure the safe and stable operation of the circuit. The internal structure of low-voltage incoming switchgear is complex and contains a variety of electrical components, such as busbars, circuit breakers, fuses, indicator lights, meters, ammeters, voltmeters, control buttons, power capacitors, power factor controllers, etc. These components work together to achieve efficient power distribution and precise control.

[0003] For example, patent application CN202223321378.0 discloses a centralized assembled low-voltage switchgear. This utility model of centralized assembled low-voltage switchgear centrally installs current transformers, first intermediate relays, AC contactors, thermal relays, protective strips, relay delay devices, second intermediate relays, and fuse-type disconnect switches onto an assembly plate. The assembly plate is detachable within the cabinet, enabling centralized management of the low-voltage switch mechanism while reducing cabinet size. This simplifies the structure of the low-voltage switchgear, making it easier to assemble, disassemble, and maintain. However, this centralized assembled low-voltage switchgear is subject to interference from the cabinet frame during assembly, hindering installation and affecting maintenance or installation efficiency.

[0004] Therefore, in view of this, we studied and improved the existing structure to propose a prefabricated low-voltage incoming cabinet. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated low-voltage incoming cabinet to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated low-voltage incoming line cabinet, including a cabinet body and a limiting component. The rear end of the cabinet body is provided with a mounting plate, and the bottom front end of the mounting plate is provided with a movable groove. The limiting component, which is used to reduce interference in the line layout, is installed inside the movable groove. The limiting component includes a retaining plate, a threaded groove, a screw, a wrench seat, and a pointer. The retaining plate is provided with a threaded groove in the middle, and the inner wall of the threaded groove is threadedly connected to the screw. The end of the screw is fixedly installed with a wrench seat, and the right side of the retaining plate is fixedly installed with a pointer.

[0007] Preferably, the front end of the mounting plate is fixedly mounted with a frame, and the frame is arranged in a "U" shape.

[0008] Preferably, the cabinet has ventilation holes on both sides, and the ventilation holes are arranged in a square shape.

[0009] Preferably, a cabinet door is rotatably connected to the front right side of the cabinet body, and the outer diameter of the cabinet door is consistent with the outer diameter of the cabinet body.

[0010] Preferably, the cabinet has a locking block inside, and the bottom right side of the mounting plate has a groove corresponding to the position of the pointer.

[0011] Preferably, the top front end of the chute is marked, and the mark is square in shape.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the assembled low-voltage incoming cabinet can not only reduce the interference of electrical components or wiring, but also allow for intuitive observation of whether the card is properly engaged.

[0013] 1. This utility model, through the setting of the limiting component, causes the wrench seat to rotate in reverse, thereby driving the screw fixed at the top to rotate. The rotation of the screw controls the upward movement of the clamp plate with the threaded groove, and causes the clamp plate to disengage from the clamp block set inside the cabinet, thereby separating the cabinet from the mounting plate, reducing interference with the cabinet and improving the efficiency of assembly.

[0014] 2. This utility model uses a pointer and a marker to move the card plate while simultaneously driving the pointer fixed on its right end to move synchronously. The position of the card plate when the pointer is at a certain position can be observed through the slide groove, which facilitates intuitive judgment by the staff. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall structure of the mounting plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the side sectional view of the cabinet body of this utility model;

[0019] Figure 5 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Cabinet body; 2. Mounting plate; 3. Movable groove; 4. Limiting component; 401. Card plate; 402. Threaded groove; 403. Screw; 404. Wrench holder; 405. Pointer; 5. Frame; 6. Ventilation hole; 7. Cabinet door; 8. Locking block; 9. Slide rail; 10. Marker. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-Figure 3 As shown, a prefabricated low-voltage incoming line cabinet includes a cabinet body 1 and a limiting component 4. A mounting plate 2 is provided at the rear end of the cabinet body 1, and a movable groove 3 is provided at the front end of the bottom of the mounting plate 2. The limiting component 4, which is used to reduce interference in the line layout, is installed inside the movable groove 3. The limiting component 4 includes a clamping plate 401, a threaded groove 402, a screw 403, a wrench seat 404, and a pointer 405. A threaded groove 402 is provided in the middle of the clamping plate 401, and a screw 403 is threadedly connected to the inner wall of the threaded groove 402. A wrench seat 404 is fixedly installed at the end of the screw 403, and a pointer 405 is fixedly installed on the right side of the clamping plate 401.

[0023] By adopting the above technical solution, the wrench holder 404 is rotated in reverse, causing the wrench holder 404 to drive the screw 403 fixed at the top to rotate. The rotation of the screw 403 controls the movement of the clamping plate 401 with the threaded groove 402 upward, and causes the clamping plate 401 to disengage from the clamping block 8 set inside the cabinet 1, thereby separating the cabinet 1 from the mounting plate 2 and reducing interference with the cabinet 1.

[0024] like Figure 3-Figure 5 As shown, a frame 5 is fixedly installed on the front end of the mounting plate 2, and the frame 5 is arranged in a "U" shape.

[0025] By adopting the above technical solution, the frame 5 is used to limit the cabinet 1 during installation.

[0026] Furthermore, ventilation holes 6 are provided on both sides of the cabinet 1, and the ventilation holes 6 are arranged in a square structure.

[0027] By adopting the above technical solution, the heat dissipation hole 6 facilitates the dissipation of heat inside the cabinet 1.

[0028] Furthermore, a cabinet door 7 is rotatably connected to the front right side of the cabinet body 1, and the outer diameter of the cabinet door 7 is consistent with the outer diameter of the cabinet body 1.

[0029] Furthermore, the cabinet 1 has a locking block 8 inside, and the bottom right side of the mounting plate 2 has a sliding groove 9 corresponding to the position of pointer 405.

[0030] By adopting the above technical solution, the slide 9 reduces interference when the pointer 405 moves and makes it easier to make intuitive judgments during use.

[0031] Furthermore, the top front end of the slide 9 is provided with a mark 10, and the mark 10 is arranged in a square structure.

[0032] Working principle: When using this prefabricated low-voltage incoming line cabinet, firstly,

[0033] Example 1: By rotating the wrench holder 404 in reverse, the wrench holder 404 drives the screw 403 fixed at the top to rotate. The rotation of the screw 403 controls the upward movement of the clamping plate 401 with the threaded groove 402, and causes the clamping plate 401 to disengage from the clamping block 8 set inside the cabinet 1, so that the cabinet 1 is separated from the mounting plate 2.

[0034] Example 2: While the card plate 401 moves, it drives the pointer 405 fixed at its right end to move synchronously. When the pointer 405 moves, the position of the card plate 401 when the pointer 405 is at a certain position can be observed through the slide groove 9. This is the working principle of the assembled low-voltage incoming cabinet.

Claims

1. A prefabricated low-voltage incoming line cabinet, comprising a cabinet body (1) and a limiting assembly (4), characterized in that, The cabinet (1) has a mounting plate (2) at its rear end, and a movable groove (3) is provided at the bottom front end of the mounting plate (2). The limiting component (4) for reducing interference from the wiring layout is installed inside the movable groove (3). The limiting component (4) includes a clamping plate (401), a threaded groove (402), a screw (403), a wrench holder (404), and a pointer (405). The clamping plate (401) has a threaded groove (402) in the middle, and the inner wall of the threaded groove (402) is threadedly connected to the screw (403). The end of the screw (403) is fixedly installed with a wrench holder (404), and the right side of the clamping plate (401) is fixedly installed with a pointer (405).

2. The prefabricated low-voltage incoming line cabinet according to claim 1, characterized in that, The front end of the mounting plate (2) is fixedly mounted with a frame (5), and the frame (5) is arranged in a "U" shape.

3. The prefabricated low-voltage incoming line cabinet according to claim 1, characterized in that, The cabinet (1) has heat dissipation holes (6) on both sides, and the heat dissipation holes (6) are arranged in a square structure.

4. The prefabricated low-voltage incoming line cabinet according to claim 1, characterized in that, The cabinet (1) is rotatably connected to the right front end of the cabinet (1), and the outer diameter of the cabinet door (7) is consistent with the outer diameter of the cabinet (1).

5. A prefabricated low-voltage incoming line cabinet according to claim 1, characterized in that, The cabinet (1) is equipped with a card block (8) inside, and a groove (9) is provided on the bottom right side of the mounting plate (2) corresponding to the position of the pointer (405).

6. A prefabricated low-voltage incoming line cabinet according to claim 5, characterized in that, The top front end of the slide (9) is provided with a mark (10), and the mark (10) is arranged in a square structure.

Citation Information

Patent Citations

  • Concentrated assembly type low-voltage switch cabinet

    CN219067473U