A switchgear cabinet

By installing a guide rail and piston rod system inside the switch cabinet, and using an air pump to push the installation components to the cabinet door side, the problems of low maintenance efficiency and poor safety of existing switch cabinets are solved, achieving convenient, safe and efficient maintenance.

CN224481379UActive Publication Date: 2026-07-10HUBEI CLEMENT ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI CLEMENT ELECTRIC CO LTD
Filing Date
2025-06-06
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The existing switchgear is inefficient and unsafe during maintenance, requiring workers to bend over and get close to the equipment for inspection, which affects both maintenance efficiency and safety.

Method used

A guide rail and piston rod system is installed inside the switch cabinet. An equipment anomaly is monitored in real time by a monitoring module. An air pump is used to push the installation components to the side of the cabinet door. Workers can identify the problematic equipment through the observation window, reducing the need to go deep into the cabinet for operation.

Benefits of technology

It improves the convenience and safety of maintenance, reduces the need for staff to go deep into the cabinet, and increases maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224481379U_ABST
    Figure CN224481379U_ABST
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Abstract

The utility model discloses a switchgear, including the cabinet body, its inside is provided with a plurality of from top to bottom equidistance distribution's guide rail, each the guide rail all can slide's setting has installation component, the guide rail includes the track, the inside of track is provided with the inflation groove, installation component can slide's setting in the track, piston rod, it can slide's setting in the inflation groove, just piston rod with inflation groove dynamic seal cooperation, one end of piston rod links with installation component, three -way valve, it sets up on corresponding the guide rail, three -way valve can cooperate external air pump and supply gas to inflation groove and promote piston rod and installation component remove, still can when piston rod reset, make the gas of inflation groove discharge, monitor module and controller are provided on the cabinet body. The utility model discloses can improve the convenience, security and efficiency of overhaul effectively, so convenient actual use.
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Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, and in particular to a switch cabinet. Background Technology

[0002] DC switchgear is a critical electrical device that effectively manages and safely operates DC power through various switching devices. It ensures reliable DC power transmission from the power source to the load and can quickly disconnect faulty circuits to prevent equipment damage and escalation of accidents. It is now widely used. However, existing switchgear suffers from several drawbacks. Due to the large number of internal devices, when a device malfunctions and requires maintenance, personnel must first locate the affected area, impacting maintenance efficiency. Furthermore, since the equipment is located deep within the cabinet, personnel must bend over to approach it, which compromises safety and efficiency during maintenance. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned shortcomings by providing a switch cabinet that makes maintenance convenient, safe, and efficient.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a switch cabinet, comprising:

[0005] The cabinet has multiple guide rails evenly distributed from top to bottom on its inner side, and each guide rail is slidably equipped with a mounting component.

[0006] The guide rail includes a track, the track has an air groove inside, and the mounting component is slidably disposed inside the track;

[0007] A piston rod is slidably disposed in an inflation groove, and the piston rod is dynamically sealed to the inflation groove. One end of the piston rod is connected to the mounting assembly.

[0008] A three-way valve is installed on the corresponding guide rail. The three-way valve can cooperate with an external air pump to supply air into the inflation tank and push the piston rod and the mounting assembly to move. It can also discharge the gas in the inflation tank when the piston rod is reset.

[0009] The cabinet is equipped with a monitoring module and a controller, which are connected to an external air pump signal.

[0010] Furthermore, the three-way valve includes a valve body mounted on the track, the valve body having a first outlet, a second outlet, and a first inlet, the first outlet communicating with an air filling groove, and the second outlet communicating with the outside of the cabinet;

[0011] When the first inlet is in a connected state, it can supply air to the air tank in conjunction with an external air pump.

[0012] Furthermore, it also includes a limiting component, which can limit the installation component located within the track, and can also release the limiting component when the installation component slides within the track.

[0013] Furthermore, the guide rail also includes a slide groove formed within the rail and communicating with the inflation groove, the mounting component is slidably disposed at the corresponding slide groove of the rail, and the rail is provided with an adjustment groove communicating with the slide groove; the limiting component includes a wedge block that can slide up and down and is disposed within the adjustment groove, the inclined surface of the wedge block is in contact with the mounting component, and a spring is vertically disposed within the adjustment groove, the bottom of the spring being in contact with the wedge block;

[0014] The gas chamber is filled with gas, and the thrust of the gas pushing the piston rod is greater than the elastic force of the spring.

[0015] Furthermore, the mounting assembly includes a slidable support plate disposed within a groove, an assembly frame disposed on the support plate, and a rotatable ball disposed on the bottom of the support plate, the ball contacting the inner wall of the corresponding groove of the track.

[0016] The beneficial effects of this utility model are reflected in:

[0017] This invention features a monitoring module mounted on the cabinet that can monitor DC switching voltage, current, temperature, and other relevant data of the equipment on each mounting component in real time. When an abnormality is detected in the equipment on the corresponding mounting component, it activates an external air pump, allowing gas to continuously pass through a three-way valve and enter the inflation tank. This pushes the piston rod and the mounting component to move along the track towards the cabinet door. Once the component reaches its limit, the air pump stops supplying gas, and the mounting component is not in contact with the cabinet door at this point. Workers can clearly observe the moved mounting component and the problematic equipment on it through the observation window. Furthermore, after opening the cabinet door, the mounting component is positioned very close to the worker, eliminating the need for workers to enter the cabinet for inspection. Therefore, this effectively improves the convenience, safety, and efficiency of maintenance. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is an external structural view of the present invention;

[0020] Figure 3 This is a schematic diagram of the assembly of the mounting components in this utility model;

[0021] Figure 4 In this utility model Figure 3 A magnified view of a portion of A shown;

[0022] Figure 5 This is a partial cross-sectional view of the mounting components in this utility model;

[0023] Figure 6 This is a cross-sectional side view of the guide rail in this utility model;

[0024] Figure 7 In this utility model Figure 6 A magnified view of part B shown.

[0025] In the picture:

[0026] 1. Cabinet body; 11. Cabinet frame; 12. Cabinet door; 13. Observation window; 2. Guide rail; 21. Track; 22. Slide groove; 23. Inflation groove; 24. Adjustment groove; 3. Mounting assembly; 31. Support plate; 32. Assembly frame; 33. Ball bearing; 4. Piston rod; 5. Three-way valve; 51. Valve body; 52. First outlet; 53. Second outlet; 54. First inlet; 6. Limiting assembly; 61. Wedge block; 62. Spring. Detailed Implementation

[0027] 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 a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figure 1-7 This utility model discloses a switch cabinet, including a cabinet body 1, wherein the cabinet body 1 includes a cabinet frame 11, and a cabinet door 12 is hinged to the cabinet frame 11. The cabinet door 12 has a mounting groove, and an observation window 13 is embedded in the corresponding mounting groove of the cabinet door 12. After the cabinet door 12 is closed, the corresponding situation inside the cabinet body 1 can be observed through the observation window 13. The cabinet body 1 mentioned above is common knowledge in the field, so its specific structural composition and working principle will not be described in detail.

[0029] In one embodiment, the inner side of the cabinet body 11 is provided with a plurality of guide rails 2 evenly distributed from top to bottom, and each guide rail 2 is slidably provided with an installation component 3. The installation component 3 is used to support the equipment inside the cabinet. In addition, the guide rail 2 includes a track 21 installed inside the cabinet body 11. An inflation groove 23 is opened inside the track 21. The installation component 3 is slidably installed in the track 21. A piston rod 4 is slidably installed in the inflation groove 23, and the piston rod 4 is dynamically sealed with the inflation groove 23. One end of the piston rod 4 is fixedly connected to the installation component 3. A three-way valve 5 is installed on each of the corresponding guide rails 2. The three-way valve 5 can be a solenoid valve, which can cooperate with an external air pump (not shown in the figure) to supply air into the inflation groove 23 and push the piston rod 4 and the installation component 3 to move. It can also discharge the gas in the inflation groove 23 when the piston rod 4 is reset. A monitoring module and a controller are also installed on the cabinet body 1. The monitoring module and the controller are connected to the external air pump signal.

[0030] In practice, the monitoring module configured on the cabinet 1 can monitor the DC switching voltage, current, temperature and other relevant data of the equipment on each mounting component 3 in real time. When an abnormality is detected in the equipment on the corresponding mounting component 3, it connects the external air pump to start it. Gas continuously passes through the three-way valve 5 and enters the air filling tank 23. It pushes the piston rod 4 and the mounting component 3 to move on the track 21 towards the side closer to the cabinet door 12. After moving to the limit state, the air pump stops supplying gas. At this time, the mounting component 3 is not in contact with the cabinet door 12. The staff can clearly observe the moved mounting component 3 and the equipment with problems on it through the observation window 13. After opening the cabinet door 12, the position of the mounting component 3 is also very close to the staff. The staff does not need to go deep into the cabinet 11 to check. Therefore, it effectively improves the convenience, safety and efficiency of maintenance.

[0031] The monitoring modules and controllers mentioned above are common knowledge in this field, so their specific structural components and working principles will not be elaborated further in this article.

[0032] In one embodiment, the three-way valve 5 includes a valve body 51 mounted on the rail 21. The valve body 51 has a first outlet 52, a second outlet 53 and a first inlet 54. The first outlet 52 is connected to the air filling tank 23, the second outlet 53 is connected to the outside of the cabinet 1, and the first inlet 54 can supply air to the air filling tank 23 in conjunction with an external air pump when it is in the connected state.

[0033] In practice, initially, when the air pump is turned on and air needs to be supplied to the inflation tank 23, the first inlet 54 and the first outlet 52 are open, while the second outlet 53 is closed. Therefore, the gas will pass through the first inlet 54 and the first outlet 52 in sequence and enter the inflation tank 23. When the mounting component 3 moves to its limit on the track 21 towards the cabinet door 12, the first inlet 54 and the first outlet 52 switch to the closed state to prevent the mounting component 3 from resetting. After maintenance is completed, the first outlet 52 and the second outlet 53 are opened and the mounting component 3 is manually pushed to reset. During this process, the piston rod 4 resets simultaneously and squeezes out the air in the inflation tank 23. The air will pass through the first outlet 52 and the second outlet 53 in sequence and be discharged outside the cabinet 1. After the reset is completed, each inlet and outlet can be adjusted to its initial state for subsequent use.

[0034] In one embodiment, the device further includes a limiting component 6 disposed within the guide rail 2.

[0035] With this design, the limiting component 6 can limit the installation component 3 located within the track 21, and can also release the limiting component when the installation component 3 slides within the track 21, thereby ensuring that the installation component 3 has good structural stability when normally bearing related equipment.

[0036] In one embodiment, the guide rail 2 further includes a slide groove 22 formed in the track 21 and communicating with the inflation groove 23. The mounting component 3 is slidably disposed at the corresponding slide groove 22 in the track 21. An adjustment groove 24 communicating with the slide groove 22 is formed on the track 21. The limiting component 6 includes a wedge block 61 that can slide up and down and is installed in the adjustment groove 24. The inclined surface of the wedge block 61 contacts the mounting component 3. A spring 62 is vertically installed in the adjustment groove 24. The bottom of the spring 62 contacts the wedge block 61. The inflation groove 23 is filled with air, and the thrust of the gas pushing the piston rod 4 is greater than the elastic force of the spring 62.

[0037] In the initial state, the spring 62 will press the wedge block 61 downward, causing it to move into the slide groove 22. At this time, the inclined surface of the wedge block 61 abuts against the mounting component 3, allowing the mounting component 3 to work normally. When the air groove 23 is filled with air and the gas pushes the piston rod 4 to move, its thrust gradually increases until it exceeds the elastic force of the spring 62, thereby causing the mounting component 3 to push the wedge block 61 into the adjustment groove 24, allowing the mounting component 3 to move normally.

[0038] In one embodiment, the limiting component 6 may also be an electric latch lock.

[0039] In practice, before the air pump is started, the pre-controlled limit component 6 is started. After it releases the limit on the installation component 3, the installation component 3 can move normally. The electric bolt lock mentioned above is common knowledge in the field, so its specific structure and working principle will not be described in detail in this article.

[0040] In one embodiment, the mounting assembly 3 includes a support plate 31 that is slidably mounted in a groove 22. An assembly frame 32 is mounted on the support plate 31. The assembly frame 32 has multiple slots distributed vertically. A ball 33 is rotatably mounted on the bottom of the support plate 31. The ball 33 contacts the inner wall of the corresponding groove 22 of the track 21.

[0041] This design allows each device to be inserted into its corresponding slot from top to bottom. The width of the support plate 31 is greater than the width of the assembly frame 32, so there is a corresponding gap, which facilitates the arrangement of the wiring.

[0042] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] Additionally, "multiple" refers to two or more.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A switch cabinet, characterized in that, include: The cabinet (1) has multiple guide rails (2) that are equidistantly distributed from top to bottom on its inner side, and each guide rail (2) is slidably provided with an installation component (3); The guide rail (2) includes a track (21), and an air groove (23) is provided inside the track (21). The mounting component (3) is slidably disposed inside the track (21). A piston rod (4) is slidably disposed in an inflation groove (23), and the piston rod (4) is dynamically sealed to the inflation groove (23). One end of the piston rod (4) is connected to the mounting assembly (3). A three-way valve (5) is installed on the corresponding guide rail (2). The three-way valve (5) can cooperate with an external air pump to supply air into the air tank (23) and push the piston rod (4) and the mounting assembly (3) to move. It can also discharge the gas in the air tank (23) when the piston rod (4) is reset. The cabinet (1) is equipped with a monitoring module and a controller, which are connected to an external air pump signal.

2. The switch cabinet according to claim 1, characterized in that: The three-way valve (5) includes a valve body (51) mounted on a track (21). The valve body (51) has a first outlet (52), a second outlet (53), and a first inlet (54). The first outlet (52) is connected to the air filling groove (23), and the second outlet (53) is connected to the outside of the cabinet (1). When the first inlet (54) is in a connected state, it can supply air to the air tank (23) in conjunction with an external air pump.

3. The switch cabinet according to claim 1, characterized in that: It also includes a limiting component (6) which can limit the mounting component (3) located in the track (21) and can release the limiting component (3) when the mounting component (3) slides in the track (21).

4. A switch cabinet according to claim 3, characterized in that: The guide rail (2) further includes a slide groove (22) opened in the track (21) and communicating with the inflation groove (23). The mounting component (3) is slidably disposed in the corresponding slide groove (22) of the track (21). An adjustment groove (24) communicating with the slide groove (22) is opened on the track (21). The limiting component (6) includes a wedge block (61) that can slide up and down in the adjustment groove (24). The inclined surface of the wedge block (61) contacts the mounting component (3). A spring (62) is vertically disposed in the adjustment groove (24). The bottom of the spring (62) contacts the wedge block (61). The gas filling groove (23) is filled with gas, and the gas pushes the piston rod (4) with a force greater than the elastic force of the spring (62).

5. A switch cabinet according to claim 4, characterized in that: The mounting assembly (3) includes a slidable support plate (31) disposed in a groove (22), an assembly frame (32) is provided on the support plate (31), and a ball (33) is rotatably disposed at the bottom of the support plate (31), the ball (33) contacting the inner wall of the corresponding groove (22) of the track (21).