Low-voltage draw-out type switch cabinet

By introducing an inverted concave dust cover and locking mechanism into the low-voltage withdrawable switchgear, the problem of reduced insulation caused by dust accumulation is solved, improving safety and ease of operation.

CN223785561UActive Publication Date: 2026-01-09SHANXI CHANGDIAN POWER ENG CO LTD
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Patent Information

Application Number
CN202520083855.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-09
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing low-voltage withdrawable switchgear is often left on the ground for extended periods, where dust can easily accumulate on the insulating pads, reducing insulation performance and posing a safety hazard.

Method used

A low-voltage withdrawable switch cabinet was designed, equipped with an inverted concave dust cover and a locking mechanism. The dust cover can be detached and fixed through a slider and groove structure to prevent dust accumulation.

Benefits of technology

The insulation properties of the insulating pad are improved, enhancing the safety of the equipment and facilitating operation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a low-voltage draw-out type switch cabinet which comprises a switch cabinet body, a base fixedly connected to the bottom of the switch cabinet body, an insulation pad fixedly connected to the bottom of the outer surface of the front side of the base, a first slot formed in the lower end of the outer surface of the front side of the base, and a second slot formed in the middle of the front end of the outer surface of the upper end of the insulation pad. A locking mechanism is fixedly connected to the middle of the front end of the outer surface of the lower end of the inverted-concave dust shield and comprises a connecting block, a mounting cavity, a limiting block, a compression spring, a guide rod and a guide hole, and the outer surface of the upper end of the connecting block is fixedly connected with the outer surface of the lower end of the inverted-concave dust shield. According to the low-voltage draw-out type switch cabinet of the utility model, through the arrangement of the inverted concave type dust shielding plate, a certain dustproof effect on the insulation pad can be realized, the safety of the low-voltage draw-out type switch cabinet is improved, and through the arrangement of the locking mechanism, the inverted concave type dust shielding plate can be conveniently fixed during use, and the use is convenient. And the stability of the inverted concave dust shield above the insulation pad is improved.
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Description

Technical Field

[0001] This utility model relates to the field of low-voltage intelligent switchgear technology, specifically a low-voltage withdrawable switchgear. Background Technology

[0002] Low-voltage withdrawable switchgear is called "withdrawable" because its internal low-voltage electrical equipment and measuring instruments are installed in separate drawers that can be pulled out. This design allows each outgoing circuit to be inspected and maintained independently, greatly improving operational safety and flexibility.

[0003] Low-voltage withdrawable switchgear is a device in a low-voltage power supply system responsible for the control, protection, conversion and distribution of electrical energy. In normal use, an insulating pad is laid at the bottom of the low-voltage withdrawable switchgear to prevent equipment leakage and injury to personnel.

[0004] An existing type of low-voltage withdrawable switchgear is left on the ground for a long time, and dust accumulates on the insulating pad, reducing the insulation of the pad and thus posing a safety hazard.

[0005] Therefore, we propose a low-voltage withdrawable switchgear. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a low-voltage withdrawable switchgear with a structure that covers the insulating pad for dust, improving safety and facilitating operation, thus effectively solving the problems in the background technology.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a low-voltage withdrawable switch cabinet, comprising a switch cabinet, a base fixedly connected to the bottom of the switch cabinet, an insulating pad fixedly connected to the bottom of the front outer surface of the base, a first slot provided at the lower end of the front outer surface of the base, an inverted concave dustproof plate inserted into the first slot, sliders fixedly connected to the upper ends of the left and right outer surfaces of the inverted concave dustproof plate, a sliding groove provided at the upper ends of the left and right outer surfaces of the first slot, the outer wall of the slider slidably connected to the inside of the sliding groove, a second slot provided at the middle of the front end of the upper outer surface of the insulating pad, a groove provided at the middle of the lower end of the front outer surface of the insulating pad, a locking mechanism fixedly connected to the middle of the front end of the lower outer surface of the inverted concave dustproof plate, the locking mechanism comprising a connecting block, a mounting cavity, a limiting block, a compression spring, a guide rod and a guide hole, the upper outer surface of the connecting block being fixedly connected to the lower outer surface of the inverted concave dustproof plate.

[0010] Preferably, the mounting cavity is located inside the connecting block, the guide hole is located in the middle of the outer surface of the connecting block at the end away from the inverted concave dust cover, the guide hole communicates with the mounting cavity, the limiting block and the compression spring are located inside the mounting cavity, and one end of the guide rod extends through the guide hole into the mounting cavity.

[0011] Preferably, the limiting block is fixed to the upper outer surface of the guide rod, and the compression spring is installed between the limiting block and the upper end of the mounting cavity.

[0012] Preferably, the outer wall of the limiting block is slidably connected to the mounting cavity, and the upper outer surface of the limiting block is elastically connected to the mounting cavity through a compression spring.

[0013] Preferably, the outer surface of the guide rod is slidably connected to the guide hole, and a handle is fixedly connected to the middle of the front outer surface of the concave dust cover.

[0014] Preferably, the outer wall of the lower end of the guide rod is engaged with the second slot.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a low-voltage withdrawable switchgear, which has the following advantages:

[0017] 1. This low-voltage withdrawable switchgear, through the installation of an inverted concave dustproof plate, can play a certain role in preventing dust from the insulating pad, thereby improving the safety of the low-voltage withdrawable switchgear.

[0018] 2. This low-voltage withdrawable switchgear, through the locking mechanism, facilitates the fixing of the concave dust cover during use, increasing the stability of the concave dust cover above the insulating pad. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a low-voltage withdrawable switchgear according to the present invention.

[0020] Figure 2 This is a partial structural diagram of a low-voltage withdrawable switchgear according to the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the insulating pad and the concave dustproof plate in a low-voltage withdrawable switchgear according to this utility model.

[0022] Figure 4 This is a cross-sectional view of a locking mechanism in a low-voltage withdrawable switchgear according to the present invention.

[0023] In the diagram: 1. Switch cabinet; 2. Base; 3. Insulating pad; 4. First slot; 5. Inverted concave dust cover; 6. Slider; 7. Slide rail; 8. Handle; 9. Second slot; 10. Groove; 11. Locking mechanism; 12. Connecting block; 13. Mounting cavity; 14. Limiting block; 15. Compression spring; 16. Guide rod; 17. Guide hole. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] This embodiment is a low-voltage withdrawable switchgear.

[0026] like Figure 1-4 As shown, the switch cabinet includes a switch cabinet 1, characterized in that: a base 2 is fixedly connected to the bottom of the switch cabinet 1, an insulating pad 3 is fixedly connected to the bottom of the front outer surface of the base 2, a first slot 4 is opened at the lower end of the front outer surface of the base 2, an inverted concave dustproof plate 5 is inserted into the first slot 4, sliders 6 are fixedly connected to the upper ends of the left and right outer surfaces of the inverted concave dustproof plate 5, grooves 7 are opened at the upper ends of the left and right outer surfaces of the first slot 4, and the outer wall of the slider 6 is slidably connected to the inside of the groove 7. A second slot 9 is opened at the middle of the front end of the upper outer surface of the insulating pad 3, a groove 10 is opened at the middle of the lower end of the front outer surface of the insulating pad 3, and a locking mechanism 11 is fixedly connected to the middle of the front end of the lower outer surface of the inverted concave dustproof plate 5. The locking mechanism 11 includes a connecting block 12, a mounting cavity 13, a limiting block 14, a compression spring 15, a guide rod 16 and a guide hole 17. The upper outer surface of the connecting block 12 is fixedly connected to the lower outer surface of the inverted concave dustproof plate 5.

[0027] The mounting cavity 13 is located inside the connecting block 12. The guide hole 17 is located in the middle of the outer surface of the end of the connecting block 12 away from the concave dust cover 5. The guide hole 17 communicates with the mounting cavity 13. The limiting block 14 and the compression spring 15 are located inside the mounting cavity 13. One end of the guide rod 16 extends into the mounting cavity 13 through the guide hole 17. The limiting block 14 is fixed to the upper outer surface of the guide rod 16. The compression spring 15 is installed between the limiting block 14 and the upper end of the mounting cavity 13. The outer wall of the limiting block 14 is slidably connected to the mounting cavity 13. The upper outer surface of the limiting block 14 is elastically connected to the mounting cavity 13 through the compression spring 15. The outer surface of the guide rod 16 is slidably connected to the guide hole 17. A handle 8 is fixedly connected to the middle of the front outer surface of the concave dust cover 5. The lower outer wall of the guide rod 16 is engaged with the second slot 9.

[0028] It should be noted that this utility model is a low-voltage withdrawable switchgear. The switchgear 1, base 2, and insulating pad 3 described herein are all prior art; therefore, the applicant will not elaborate further on them. (See attached specification.) Figure 1 In the indicated state, the compression spring 15 is in a compressed state. When it is necessary to cover the insulating pad 3 with dust, pull the handle 8 to move the inverted concave dust cover 5 outward along the first slot 4. The inverted concave dust cover 5 also moves the sliders 6 on both sides outward along the inside of the slide groove 7. When the guide rod 16 in the locking mechanism 11 moves to the upper end of the second slot 9, the reaction force of the compression spring 15 causes the lower end of the guide rod 16 to be engaged in the second slot 9, thereby limiting the position of the dust cover 5. At this time, the inverted concave dust cover 5 covers the upper part of the insulating pad 3, covering the insulating pad 3 with dust. When dust covering is not needed, put your hand into the groove 10 and press the guide rod 16 in the second slot 9 to disengage the guide rod 16 from the second slot 9. Then push the inverted concave dust cover 5 into the first slot 4. At the same time, the inverted concave dust cover 5 moves the sliders 6 at both ends backward along the slide groove 7, so that the rear side of the inverted concave dust cover 5 re-enters the first slot 4.

[0029] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A low-voltage withdrawable switchgear, comprising a switchgear (1), characterized in that: The bottom of the switch cabinet (1) is fixedly connected to a base (2). An insulating pad (3) is fixedly connected to the bottom of the front outer surface of the base (2). A first slot (4) is provided at the lower end of the front outer surface of the base (2). An inverted concave dustproof plate (5) is inserted into the first slot (4). A slider (6) is fixedly connected to the upper end of the left and right outer surfaces of the inverted concave dustproof plate (5). A sliding groove (7) is provided on the upper end of the left and right outer surfaces of the first slot (4). The outer wall of the slider (6) is slidably connected to the inside of the sliding groove (7). The insulating pad (3) has a second slot (9) in the middle of the front end of the upper outer surface. The insulating pad (3) has a groove (10) in the middle of the lower end of the front outer surface. The inverted concave dust cover (5) has a locking mechanism (11) fixedly connected to the middle of the front end of the lower outer surface. The locking mechanism (11) includes a connecting block (12), a mounting cavity (13), a limiting block (14), a compression spring (15), a guide rod (16), and a guide hole (17). The upper outer surface of the connecting block (12) is fixedly connected to the lower outer surface of the inverted concave dust cover (5).

2. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The mounting cavity (13) is located inside the connecting block (12). The guide hole (17) is located in the middle of the outer surface of the connecting block (12) away from the concave dust cover (5). The guide hole (17) communicates with the mounting cavity (13). The limiting block (14) and the compression spring (15) are located inside the mounting cavity (13). One end of the guide rod (16) extends through the guide hole (17) into the mounting cavity (13).

3. A low-voltage withdrawable switchgear according to claim 2, characterized in that: The limiting block (14) is fixed to the upper outer surface of the guide rod (16), and the compression spring (15) is installed between the limiting block (14) and the upper end of the mounting cavity (13).

4. A low-voltage withdrawable switchgear according to claim 3, characterized in that: The outer wall of the limiting block (14) is slidably connected to the mounting cavity (13), and the upper outer surface of the limiting block (14) is elastically connected to the mounting cavity (13) through a compression spring (15).

5. A low-voltage withdrawable switchgear according to claim 4, characterized in that: The outer surface of the guide rod (16) is slidably connected to the guide hole (17), and a handle (8) is fixedly connected to the middle of the front outer surface of the concave dust cover (5).

6. A low-voltage withdrawable switchgear according to claim 5, characterized in that: The outer wall of the lower end of the guide rod (16) is engaged with the second slot (9).