A low-voltage switch cabinet structure capable of being quickly assembled and disassembled
By introducing an assembly and disassembly structure with pull plates and return springs, as well as an auxiliary structure for pressure relief ports into the low-voltage switchgear, the inconvenience of outdoor installation and the safety issues in the event of an explosion of the low-voltage switchgear are solved, enabling rapid assembly and disassembly and safe pressure relief.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINJINGYUAN POWER TECH CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-26
AI Technical Summary
Existing low-voltage switchgear is cumbersome to assemble and disassemble when installed on outdoor mounting bases, and is not safe enough in the event of an explosion.
A structure including a fixed base and a low-voltage switch cabinet was designed. An assembly and disassembly structure with pull plate and return spring is adopted. Quick assembly and disassembly are achieved through pull rod slot. A cover plate and plug structure are set at the pressure relief port to release pressure in the event of an explosion and prevent the impact from spreading.
It enables rapid assembly and disassembly of low-voltage switchgear, improves the convenience of outdoor installation, and enhances safety through a pressure relief structure in the event of an explosion.
Smart Images

Figure CN224418242U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage switchgear technology, and in particular to a low-voltage switchgear structure that can be quickly assembled and disassembled. Background Technology
[0002] Low-voltage switchgear is a common term for low-voltage switchgear and control equipment, referring to complete electrical installations with AC and DC voltages below 1000V. It is widely used by power users such as power plants, substations, and power departments of industrial and mining enterprises. A low-voltage switchgear consists of one or more low-voltage switchgear devices and related control, measurement, signaling, protection, and regulation equipment. The manufacturer is responsible for completing all internal electrical and mechanical connections, assembling the entire unit using structural components. Its main functions include power distribution and conversion, motor control, reactive power compensation, and protection of personnel and equipment from external environmental influences.
[0003] To address this, patent specification CN207303809U discloses a low-voltage switchgear structure, including a cabinet body. The front of the cabinet body has several pull-out drawers. The top and bottom of the front of the cabinet body have horizontal sliding grooves, and a vertical sliding stop bar is provided in cooperation with the sliding grooves. The sliding stop bar can slide left and right on the sliding grooves. A threaded hole is located in the middle of the upper part of the cabinet body. The sliding stop bar has a through hole with the same diameter as the threaded hole, and the threaded hole and the through hole are at the same height. The bottom of the cabinet body has a pair of directional wheels and a pair of universal wheels. A hydraulic telescopic rod is provided on the inner side of each of the directional wheels and universal wheels. The hydraulic telescopic rod is installed at the bottom of the cabinet body, and a trapezoidal support base is provided at the end of the movable rod of the hydraulic telescopic rod. This utility model has a novel design, simple structure, and is convenient for handling and moving.
[0004] The aforementioned technology allows for easy movement of the cabinet by using a pair of directional wheels and a pair of omnidirectional wheels. However, when installing the low-voltage switchgear, it still needs to be assembled onto a fixed base. Traditional bolt installation is time-consuming and makes assembling and disassembling the low-voltage switchgear on the fixed base quite troublesome. Therefore, a low-voltage switchgear structure that can be quickly assembled and disassembled is needed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a low-voltage switchgear structure that can be quickly assembled and disassembled, in order to solve the problem that existing low-voltage switches installed on outdoor fixed bases are inconvenient to assemble or disassemble quickly.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a low-voltage switchgear structure that can be quickly assembled and disassembled, including a fixed base and a low-voltage switchgear;
[0007] A low-voltage switch cabinet is installed on the top of the fixed base, and assembly and disassembly structures are provided on both sides of the fixed base.
[0008] The assembly and disassembly structure includes a pull plate, which is installed on both sides of the fixed base. Slots are provided on both sides of the bottom end of the low-voltage switch cabinet, and a pull rod is inserted into the slot. One end of the pull rod is fixed to one side of the pull plate.
[0009] Preferably, a return spring is installed on one side of the pull plate, one end of the return spring is fixed to one side of the fixed base, and the pull plate and the return spring form a telescopic structure.
[0010] Preferably, the inner diameter of the slot is larger than the outer diameter of the pull rod, and the slot and the pull rod form an insertion structure.
[0011] Preferably, the pull rod is provided in two sets, and the two sets of pull rods are symmetrically distributed on both sides of the fixed base.
[0012] Preferably, the low-voltage switchgear has a pressure relief port at the top, and an auxiliary structure is provided inside the pressure relief port. The auxiliary structure includes a fixing rod, which is fixed to one side inside the pressure relief port. A cover plate is hinged to the outside of the fixing rod, and a fixing plate is fixed to the top of one side of the cover plate.
[0013] Preferably, a fixing frame is fixed to one side of the fixing plate at the top of the fixing base, and mounting holes are opened inside the two sides of the fixing frame. A telescopic spring is installed inside the mounting hole, and a plug rod is fixed to one end of the telescopic spring. Insertion holes are opened on both sides of the fixing plate.
[0014] Preferably, the insertion rod is inserted into the interior of the insertion hole, and a limiting structure is formed between the insertion rod and the insertion hole.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] The low-voltage switchgear is designed with an assembly and disassembly mechanism. To expedite the assembly and disassembly of the switchgear, a pull plate and a return spring are used in conjunction. When assembling the switchgear onto the top of the mounting base, the pull rod is inserted into the slot to complete the assembly. To disassemble the switchgear, the pull rod is simply pulled out, allowing for quicker assembly and disassembly.
[0017] To enhance the safety of low-voltage switchgear in the event of an explosion, an auxiliary structure is incorporated. A cover plate is placed over the pre-installed pressure relief port at the top of the switchgear. When an explosion occurs inside the switchgear, the internal pressure forces the cover plate open, causing the plug to detach from the socket. This provides a channel for pressure relief, ensuring the explosion's impact is directed upwards and not spread outwards, thus making the switchgear safer during an explosion. Attached Figure Description
[0018] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention, showing a partial cross-section from the front.
[0020] Figure 3 For the present utility model Figure 2 A magnified three-dimensional structural diagram of a portion of point A in the middle;
[0021] Figure 4 This is a top-view three-dimensional structural diagram of the auxiliary structure of this utility model;
[0022] Figure 5 For the present utility model Figure 4 A magnified three-dimensional structural diagram of a portion of point B in the middle.
[0023] In the diagram: 1. Mounting base; 2. Low-voltage switchgear; 3. Assembly and disassembly structure; 301. Pull plate; 302. Pull rod; 303. Slot; 304. Return spring; 4. Auxiliary structure; 401. Cover plate; 402. Fixing plate; 403. Fixing bracket; 404. Mounting hole; 405. Telescopic spring; 406. Insert rod; 407. Insertion hole; 408. Fixing rod; 5. Pressure relief port. Detailed Implementation
[0024] 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.
[0025] This utility model embodiment provides a low-voltage switchgear structure that can be quickly assembled and disassembled, such as... Figures 1-5 As shown, it includes a fixed base 1 and a low-voltage switchgear 2; the low-voltage switchgear 2 is installed on the top of the fixed base 1, and assembly and disassembly structures 3 are provided on both sides of the fixed base 1.
[0026] The assembly and disassembly structure 3 includes a pull plate 301, which is installed on both sides of the fixed base 1. Slots 303 are provided on both sides of the bottom end of the low-voltage switchgear 2. A pull rod 302 is inserted into the slot 303. One end of the pull rod 302 is fixed to one side of the pull plate 301. A return spring 304 is installed on one side of the pull plate 301. One end of the return spring 304 is fixed to one side of the fixed base 1. The pull plate 301 and the return spring 304 form a telescopic structure. The inner diameter of the slot 303 is larger than the outer diameter of the pull rod 302. The slot 303 and the pull rod 302 form an insertion structure. There are two sets of pull rods 302, which are symmetrically distributed on both sides of the fixed base 1.
[0027] In a further preferred embodiment of this utility model, such as Figures 1-3 As shown: When assembling the low-voltage switchgear 2 outdoors, the worker holds the pull plate 301 and pulls it to one side. This pull stretches the return spring 304, causing the pull rod 302 to move within the sliding groove of the fixed base 1. As the pull rod 302 moves, it installs the low-voltage switchgear 2 into the limiting groove at the top of the fixed base 1. After assembly, the pull plate 301 is released. The return spring 304 then pulls the pull rod 302 into the slot 303, completing the assembly of the low-voltage switchgear 2. To disassemble the low-voltage switchgear 2, simply pull the pull plate 301 again, causing the pull rod 302 to disengage from the slot 303, and then remove the low-voltage switchgear 2. This completes the quick assembly and disassembly of the low-voltage switchgear 2.
[0028] The top of the low-voltage switchgear 2 is provided with a pressure relief port 5. An auxiliary structure 4 is provided inside the pressure relief port 5. The auxiliary structure 4 includes a fixing rod 408. The fixing rod 408 is fixed to one side inside the pressure relief port 5. A cover plate 401 is hinged to the outside of the fixing rod 408. A fixing plate 402 is fixed to the top of one side of the cover plate 401. A fixing bracket 403 is fixed to one side of the fixing plate 402 at the top of the fixing base 1. Mounting holes 404 are provided inside both sides of the fixing bracket 403. A telescopic spring 405 is installed inside the mounting hole 404. A plug rod 406 is fixed to one end of the telescopic spring 405. Plug holes 407 are provided on both sides of the fixing plate 402. The plug rod 406 is inserted into the plug hole 407. The plug rod 406 and the plug hole 407 form a limiting structure.
[0029] In a further preferred embodiment of this utility model, such as Figures 4-5As shown: When an explosion occurs inside the low-voltage switchgear 2 due to an electrical short circuit, the telescopic spring 405 and the plug rod 406 work together to insert the plug rod 406 into the socket 407, thereby covering the cover plate 401 in the pressure relief port 5 reserved at the top of the low-voltage switchgear 2. When an explosion occurs inside the low-voltage switchgear 2, the internal pressure will squeeze the cover plate 401, causing the plug rod 406 to fall out of the socket 407, thus opening the cover plate 401 and providing a pressure relief channel for the internal pressure of the low-voltage switchgear 2. This ensures that the impact of the explosion will only impact upwards and will not spread to the surroundings, making the low-voltage switchgear 2 safer during an explosion.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A low-voltage switchgear structure that can be quickly assembled and disassembled, characterized in that: Includes a fixed base (1) and a low-voltage switchgear (2); A low-voltage switch cabinet (2) is installed on the top of the fixed base (1), and assembly and disassembly structures (3) are provided on both sides of the fixed base (1). The assembly and disassembly structure (3) includes a pull plate (301), which is installed on both sides of the fixed base (1). The low-voltage switch cabinet (2) has slots (303) on both sides of its bottom end. A pull rod (302) is inserted into the slot (303), and one end of the pull rod (302) is fixed to one side of the pull plate (301).
2. The low-voltage switchgear structure that can be quickly assembled and disassembled according to claim 1, characterized in that: A return spring (304) is installed on one side of the pull plate (301). One end of the return spring (304) is fixed to one side of the fixed base (1). The pull plate (301) and the return spring (304) form a telescopic structure.
3. The low-voltage switchgear structure that can be quickly assembled and disassembled according to claim 1, characterized in that: The inner diameter of the slot (303) is larger than the outer diameter of the pull rod (302), and the slot (303) and the pull rod (302) form an insertion structure.
4. The low-voltage switchgear structure that can be quickly assembled and disassembled according to claim 1, characterized in that: The pull rod (302) is provided in two sets, and the two sets of pull rod (302) are symmetrically distributed on both sides of the fixed seat (1).
5. The low-voltage switchgear structure that can be quickly assembled and disassembled according to claim 1, characterized in that: The low-voltage switchgear (2) has a pressure relief port (5) at its top. An auxiliary structure (4) is provided inside the pressure relief port (5). The auxiliary structure (4) includes a fixing rod (408). The fixing rod (408) is fixed to one side inside the pressure relief port (5). A cover plate (401) is hinged to the outside of the fixing rod (408). A fixing plate (402) is fixed to the top of one side of the cover plate (401).
6. The low-voltage switchgear structure that can be quickly assembled and disassembled according to claim 5, characterized in that: A fixing bracket (403) is fixed on one side of the fixing plate (402) at the top of the fixing base (1). The fixing bracket (403) has mounting holes (404) on both sides. A telescopic spring (405) is installed inside the mounting hole (404). A plug rod (406) is fixed to one end of the telescopic spring (405). Plug holes (407) are opened on both sides of the fixing plate (402).
7. The low-voltage switchgear structure that can be quickly assembled and disassembled according to claim 6, characterized in that: The insertion rod (406) is inserted into the interior of the insertion hole (407), and the insertion rod (406) and the insertion hole (407) form a limiting structure.