High-low voltage complete switch cabinet convenient to maintain and use method thereof

Abstract

The invention discloses a high-low voltage complete switch cabinet convenient to maintain and a using method thereof, and belongs to the technical field of switch cabinets, the high-low voltage complete switch cabinet convenient to maintain comprises a cabinet body, a threading plate is connected to the cabinet body, supporting legs are connected to the lower portion of the cabinet body and the lower portion of the threading plate, a cabinet door is rotationally installed on the cabinet body, and a heat dissipation box is installed on the upper portion of the cabinet body. And a mounting frame is slidably mounted in the cabinet body. According to the device, a first motor is started to rotate a threaded rod, so that a moving plate moves along a sliding groove through thread fit of a threaded sleeve and the threaded rod, the moving plate can drive a connecting plate and a side plate to move together, and a pushing groove can push a connecting rod in the upward moving process of the side plate, so that the connecting rod is promoted to slide in the pushing groove and drive a mounting frame to move; the sliding strips slide in the connecting grooves, so that the mounting frame can be stably moved out of the cabinet body through rolling of the universal wheels, the operation space of workers is expanded, and the workers can conveniently perform operation to complete maintenance work.

Description

Technical Field

[0001] The invention belongs to the technical field of switch cabinets, and particularly relates to a high and low voltage complete switch cabinet convenient for maintenance and a using method thereof. Background Art

[0002] A high and low voltage complete switch cabinet is a device used to connect high-voltage or low-voltage cables. The external line first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Generally, power supply bureaus and substations use high-voltage cabinets, and then step down the voltage through transformers to low-voltage cabinets, and the low-voltage cabinets are then connected to each distribution box for power consumption. The internal structure is an electrical device that assembles some protective devices such as switch circuit breakers into one body.

[0003] The distribution devices in the switch cabinet are usually installed on the inner side of the cabinet body through structures such as brackets. Maintenance and repair require the use of certain tools, and the use of tools requires a certain amount of space, while the space inside the switch cabinet itself is limited, resulting in inconvenient maintenance and affecting operation. Summary of the Invention

[0004] In order to overcome the above defects, the invention provides a high and low voltage complete switch cabinet convenient for maintenance and a using method thereof, which solves the problem that the distribution devices in the switch cabinet are usually installed on the inner side of the cabinet body through structures such as brackets, and the space inside the switch cabinet itself is limited, resulting in inconvenient subsequent maintenance and affecting operation.

[0005] To achieve the above object, the invention provides the following technical solution: A high and low voltage complete switch cabinet convenient for maintenance, including a cabinet body, a wire threading board is connected to the cabinet body, support legs are connected to both the cabinet body and the lower part of the wire threading board, a cabinet door is rotatably installed on the cabinet body, a heat dissipation box is installed above the cabinet body, an installation rack is slidably installed inside the cabinet body, ventilation pipes are arranged on both sides of the cabinet body, a plurality of wire threading holes are opened on the wire threading board, and a sliding groove is opened on the wire threading board;

[0006] A first motor is fixedly installed on the wire threading board, a threaded rod is connected to the output shaft of the first motor, a moving plate is installed on the threaded rod, a threaded sleeve is connected to the moving plate, a connecting plate is connected to the moving plate, side plates are connected to both sides of the connecting plate, a pushing groove is opened on the side plates, and connecting rods are connected to both sides of the installation rack;

[0007] A plurality of through grooves are opened on the installation rack, a sliding bar is connected to the lower part of the installation rack, universal wheels are installed below the sliding bar, an installation box is connected to the lower part of the installation rack, a storage box is slidably installed inside the installation box, opening grooves are opened on both inner walls of the installation box, springs are connected to the opening grooves, and movable rods are connected to one ends of the springs.

[0008] As a further solution of the present invention: guiding grooves are provided on both sides of the storage box, a V-shaped groove is provided at one end of the guiding groove, a plurality of ventilation grooves are provided on the installation box, both the opening groove and the movable rod are of T-shaped structures, and the movable rod slides in the opening groove.

[0009] As a further solution of the present invention: a dust filter plate is connected to the heat dissipation box, a second motor is fixedly installed on the heat dissipation box, a shaft rod is connected to the output shaft of the second motor, one end of the shaft rod connected to the second motor passes through the dust filter plate and is connected with a fan blade, and a plurality of scraping plates are connected to the shaft rod, the scraping plates are of arc-shaped design and are in contact with the upper part of the dust filter plate.

[0010] As a further solution of the present invention: a filter cover is threadedly connected to the ventilation pipe, the pushing groove is obliquely arranged on the side plate, and the connecting rod slides in the pushing groove.

[0011] As a further solution of the present invention: two U-shaped rods are connected above the interior of the cabinet body, and the two U-shaped rods are distributed on both sides of the heat dissipation box, and a connecting groove is provided below the cabinet body.

[0012] As a further solution of the present invention: connecting sleeves are connected to both sides above the mounting frame, the connecting sleeves are slidably connected with the U-shaped rods, the sliding strip is of I-shaped design, and the sliding strip is slidably connected with the connecting groove.

[0013] As a further solution of the present invention: the threaded rod is rotatably connected in the sliding groove, and the threaded rod is in threaded cooperation with the threaded sleeve, a guiding rod is connected in the sliding groove, the guiding rod is arranged on one side of the threaded rod and is slidably connected with the moving plate.

[0014] A usage method of a high and low voltage complete switchgear convenient for maintenance, the usage method includes the following steps:

[0015] When maintenance is required, the staff starts the first motor to rotate the threaded rod, and by using the threaded cooperation between the threaded sleeve and the threaded rod, the moving plate can slide upward along the threaded rod in the sliding groove, so that the moving plate drives the connecting plate and the side plate to move together. During the upward movement of the side plate, the inclined pushing groove will push the connecting rod, prompting the connecting rod to slide in the pushing groove and drive the mounting frame to move;

[0016] The sliding strip slides in the connecting groove, so that the mounting frame can be smoothly moved out of the cabinet body through the rolling of the universal wheels, thereby expanding the operation space for the staff, facilitating the staff to perform operations to complete the maintenance work. After that, the staff can place a moisture absorbent in the storage box and push the storage box into the installation box. At this time, the movable rod will slide into the guiding groove and slide along the guiding groove. When the movable rod moves to the V-shaped groove at one end of the guiding groove, the movable rod will be pushed by the inclined groove wall of the V-shaped groove;

[0017] Furthermore, the movable rod slides in the opening groove to compress the spring. Then, with the movement of the storage box and the resilience of the spring, the movable rod is urged to snap into the end of the V-shaped groove, thereby restricting and fixing the storage box to prevent accidental sliding. The moisture absorbent in the storage box can absorb the moisture inside the cabinet through the ventilation slots. When working, the second motor rotates the fan blades;

[0018] The rotating fan blades cause air to flow into the cabinet and prompt the air inside the cabinet to flow out through the ventilation pipe, thereby accelerating the air circulation speed inside the cabinet, avoiding heat accumulation, and improving the heat dissipation efficiency. At this time, the dust filter plate filters out the dust in the air, and at the same time, the scraper rotates with the fan blades, thereby scraping off the dust adhering to the dust filter plate to prevent the ventilation efficiency from decreasing due to dust blockage.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In the present invention, by providing the first motor, threaded rod, guide rod, chute, moving plate, threaded sleeve, connecting plate, side plate, pushing groove, connecting rod, mounting bracket and universal wheels, when maintenance is required, the staff starts the first motor to rotate the threaded rod, and the moving plate moves along the threaded rod in the chute through the threaded fit between the threaded sleeve and the threaded rod. The moving plate moving along the threaded rod can slide synchronously on the guide rod, so that the guide rod guides the moving plate. The moving plate can drive the connecting plate and the side plate to move together. During the upward movement of the side plate, the inclined pushing groove will push the connecting rod, causing the connecting rod to slide in the pushing groove and drive the mounting bracket to move, so that the sliding strip slides in the connecting groove, and thus the mounting bracket can smoothly move out of the cabinet through the rolling of the universal wheels, thereby expanding the operating space for the staff to facilitate the staff to perform operations and complete the maintenance work.

[0021] 2. In the present invention, by providing the storage box, mounting box, spring, movable rod, opening groove, guide groove, V-shaped groove and ventilation slot, the staff can place the moisture absorbent in the storage box and push the storage box into the mounting box. At this time, the movable rod will slide into the guide groove and slide along the guide groove. When the movable rod moves to the V-shaped groove at one end of the guide groove, the movable rod will be pushed by the inclined groove wall of the V-shaped groove, so that the movable rod slides in the opening groove to compress the spring. Then, with the movement of the storage box and the resilience of the spring, the movable rod is urged to snap into the end of the V-shaped groove, thereby restricting and fixing the storage box to prevent accidental sliding. When the mounting bracket moves back into the cabinet to resume work, the moisture absorbent in the storage box can absorb the moisture inside the cabinet through the ventilation slots, thereby ensuring a dry environment inside the cabinet and preventing the humid air from affecting the normal operation of the electrical components.

[0022] 3. In the present invention, by providing a second motor, a fan blade, a scraper, a ventilation pipe, a dust filter plate and a filter cover, when working normally, the second motor will rotate the fan blade. The rotating fan blade causes air to flow into the cabinet interior, and promotes the air inside the cabinet to flow out through the ventilation pipe, thereby accelerating the air circulation speed inside the cabinet, avoiding heat accumulation, and improving the heat dissipation efficiency. At this time, the dust filter plate will filter out the dust in the air, and at the same time, the scraper will rotate together with the fan blade, so that the dust attached to the dust filter plate can be scraped off, avoiding the reduction of ventilation efficiency caused by dust blockage, and the filter cover installed at the ventilation pipe can prevent dust from entering the cabinet through the ventilation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 is a schematic diagram of the three-dimensional structure of the cabinet body of the present invention;

[0025] Figure 3 is a schematic diagram of the three-dimensional structure of the wire threading board of the present invention;

[0026] Figure 4 is a schematic diagram of the three-dimensional structure of the mounting rack of the present invention;

[0027] Figure 5 is a schematic diagram of the sectional structure of the wire threading board of the present invention;

[0028] Figure 6 is a schematic diagram of the sectional structure of the installation box of the present invention;

[0029] Figure 7 is a schematic diagram of the sectional structure of the heat dissipation box of the present invention;

[0030] In the figure: 1, cabinet body; 2, wire threading board; 3, support leg; 4, cabinet door; 5, heat dissipation box; 6, mounting rack; 7, ventilation pipe; 8, wire threading hole; 9, sliding groove; 10, first motor; 11, threaded rod; 12, moving plate; 13, threaded sleeve; 14, connecting plate; 15, side plate; 16, pushing groove; 17, connecting rod; 18, through groove; 19, sliding bar; 20, universal wheel; 21, installation box; 22, storage box; 23, opening groove; 24, spring; 25, movable rod; 26, guiding groove; 27, V-shaped groove; 28, ventilation groove; 29, dust filter plate; 30, second motor; 31, fan blade; 32, scraper; 33, filter cover; 34, U-shaped rod; 35, connecting groove; 36, connecting sleeve; 37, guiding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions of the present application will be further described in detail below in conjunction with the specific embodiments.

[0032] Such as Figure 1-7As shown in the figure, the present invention provides a technical solution: a high and low voltage complete switch cabinet that is convenient for maintenance, including a cabinet body 1, a wiring board 2 is connected to the cabinet body 1, support legs 3 are connected to both the cabinet body 1 and the lower part of the wiring board 2, two U-shaped rods 34 are connected above the interior of the cabinet body 1, and the two U-shaped rods 34 are distributed on both sides of the heat dissipation box 5. A connection groove 35 is opened below the cabinet body 1. When the side plate 15 pushes the connecting rod 17 through the pushing groove 16 to move the mounting frame 6, the connecting sleeve 36 above the mounting frame 6 will slide on the U-shaped rod 34, so as to limit the sliding of the connecting sleeve 36 through the U-shaped rod 34 and prevent the mounting frame 6 from completely detaching from the cabinet body 1.

[0033] A cabinet door 4 is rotatably installed on the cabinet body 1, a heat dissipation box 5 is installed above the cabinet body 1, a dust filter plate 29 is connected to the heat dissipation box 5, a second motor 30 is fixedly installed on the heat dissipation box 5, a shaft rod is connected to the output shaft of the second motor 30, one end of the shaft rod connected to the second motor 30 passes through the dust filter plate 29 and is connected to a fan blade 31, and a plurality of scraping plates 32 are connected to the shaft rod. The scraping plates 32 are arc-shaped and contact the upper part of the dust filter plate 29. The dust in the flowing air is filtered out by the dust filter plate 29, and while the second motor 30 rotates the fan blade 31, the scraping plates 32 will rotate together, so as to scrape off the dust through the scraping plates 32 and prevent the dust from blocking the filter holes of the dust filter plate 29.

[0034] A mounting frame 6 is slidably installed inside the cabinet body 1. Connecting sleeves 36 are connected to both sides above the mounting frame 6. The connecting sleeves 36 are slidably connected to the U-shaped rods 34. The sliding strip 19 is designed in an I shape, and the sliding strip 19 is slidably connected to the connection groove 35. When the mounting frame 6 is pushed to make the universal wheels 20 roll on the ground, the sliding strip 19 will move in the connection groove 35, so as to limit the movement of the mounting frame 6 through the connection groove 35 and prevent the mounting frame 6 from tilting during movement.

[0035] Ventilation pipes 7 are arranged on both sides of the cabinet body 1. A filter cover 33 is threadedly connected to the ventilation pipes 7. The pushing groove 16 is inclined on the side plate 15, and the connecting rod 17 slides in the pushing groove 16. Due to the threaded connection between the filter cover 33 and the ventilation pipes 7, the staff only needs to turn the filter cover 33 to remove the filter cover 33, and the operation is simple, so it is convenient for the staff to clean and replace.

[0036] The threading board 2 is provided with a plurality of threading holes 8, a sliding groove 9 is provided on the threading board 2, a first motor 10 is fixedly installed on the threading board 2, the output shaft of the first motor 10 is connected with a threaded rod 11, a moving plate 12 is installed on the threaded rod 11, a threaded sleeve 13 is connected to the moving plate 12, the threaded rod 11 is rotatably connected in the sliding groove 9, and the threaded rod 11 is in threaded cooperation with the threaded sleeve 13. A guide rod 37 is connected in the sliding groove 9. The guide rod 37 is arranged on one side of the threaded rod 11 and is slidably connected to the moving plate 12. When the moving plate 12 moves along the threaded rod 11 through the threaded sleeve 13, the guide rod 37 will guide the movement of the moving plate 12, so that the moving plate 12 can move smoothly along the threaded rod 11.

[0037] A connecting plate 14 is connected to the moving plate 12. Side plates 15 are connected to both sides of the connecting plate 14. A pushing groove 16 is provided on the side plates 15. Connecting rods 17 are connected to both sides of the mounting frame 6. A plurality of through grooves 18 are provided on the mounting frame 6. A sliding bar 19 is connected below the mounting frame 6. A universal wheel 20 is installed below the sliding bar 19. An installation box 21 is connected below the mounting frame 6. A storage box 22 is slidably installed in the installation box 21. Guide grooves 26 are provided on both sides of the storage box 22. A V-shaped groove 27 is provided at one end of the guide groove 26. A plurality of ventilation grooves 28 are provided on the installation box 21. Both the opening groove 23 and the movable rod 25 are of T-shaped structures, and the movable rod 25 slides in the opening groove 23. Opening grooves 23 are provided on the inner walls of both sides of the installation box 21. Springs 24 are connected in the opening grooves 23. One end of the spring 24 is connected with a movable rod 25. Through the plurality of ventilation grooves 28 on the installation box 21, the moisture absorbent in the storage box 22 can contact the humid air in the cabinet body 1, so as to absorb the moisture. And through the inclined groove wall of the V-shaped groove 27, the movable rod 25 can be flexibly pushed to move, so as to facilitate the staff to install and disassemble the storage box 22.

[0038] A usage method of a high and low voltage complete switchgear convenient for maintenance, the usage method includes the following steps:

[0039] When maintenance is required, the staff rotates the threaded rod 11 by starting the first motor 10. By using the threaded cooperation between the threaded sleeve 13 and the threaded rod 11, the moving plate 12 can slide upward along the threaded rod 11 in the sliding groove 9, so that the moving plate 12 drives the connecting plate 14 and the side plates 15 to move together. During the upward movement of the side plates 15, the inclined pushing groove 16 will push the connecting rod 17, prompting the connecting rod 17 to slide in the pushing groove 16 and drive the mounting frame 6 to move;

[0040] The slider 19 is made to slide within the connecting groove 35, so that the mounting frame 6 can be smoothly moved out of the cabinet body 1 through the rolling of the universal wheels 20, thereby expanding the operation space for the staff, facilitating the staff to perform operations to complete the maintenance work. After that, the staff can place desiccant in the storage box 22 and push the storage box 22 into the installation box 21. At this time, the movable rod 25 will slide into the guide groove 26 and slide along the guide groove 26. When the movable rod 25 moves to the V-shaped groove 27 at one end of the guide groove 26, the movable rod 25 will be pushed by the inclined groove wall of the V-shaped groove 27;

[0041] Furthermore, the movable rod 25 is made to slide within the opening groove 23 to compress the spring 24. Then, with the movement of the storage box 22 and the rebound of the spring 24, the movable rod 25 is urged to snap into the end of the V-shaped groove 27, thereby restricting and fixing the storage box 22 to prevent accidental sliding. The desiccant in the storage box 22 can absorb the moisture inside the cabinet body 1 through the ventilation grooves 28. When working, the second motor 30 will rotate the fan blade 31;

[0042] The rotating fan blade 31 causes air to flow into the cabinet body 1 and prompts the air inside the cabinet body 1 to flow out from the ventilation pipe 7, thereby accelerating the air circulation speed inside the cabinet body 1, avoiding heat accumulation, and improving the heat dissipation efficiency. At this time, the dust filter plate 29 will filter out the dust in the air, and at the same time, the scraper 32 will rotate together with the fan blade 31, thereby scraping off the dust attached to the dust filter plate 29 to avoid a decrease in ventilation efficiency caused by dust blockage.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0045] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one solution", "some solutions", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more solutions or examples.

Claims

1. A high and low voltage complete switchgear cabinet that is convenient for maintenance, comprising a cabinet body (1), characterized in that: A wire threading board (2) is connected to the cabinet body (1). Support legs (3) are connected to both the cabinet body (1) and the lower part of the wire threading board (2). A cabinet door (4) is rotatably installed on the cabinet body (1). A heat dissipation box (5) is installed above the cabinet body (1). An installation rack (6) is slidably installed inside the cabinet body (1). Ventilation pipes (7) are arranged on both sides of the cabinet body (1). A plurality of wire threading holes (8) are formed in the wire threading board (2), and a sliding groove (9) is formed in the wire threading board (2). A first motor (10) is fixedly installed on the wire threading board (2). The output shaft of the first motor (10) is connected to a threaded rod (11). A moving plate (12) is installed on the threaded rod (11). A threaded sleeve (13) is connected to the moving plate (12). A connecting plate (14) is connected to the moving plate (12). Side plates (15) are connected to both sides of the connecting plate (14). A pushing groove (16) is formed in the side plates (15). Connecting rods (17) are connected to both sides of the installation rack (6). A plurality of through grooves (18) are formed in the installation rack (6). A sliding bar (19) is connected to the lower part of the installation rack (6). Universal wheels (20) are installed below the sliding bar (19). An installation box (21) is connected to the lower part of the installation rack (6). A storage box (22) is slidably installed inside the installation box (21). Opening grooves (23) are formed in the inner walls on both sides of the installation box (21). Springs (24) are connected in the opening grooves (23). One end of each spring (24) is connected to a movable rod (25).

2. The low-voltage and high-voltage complete switchgear convenient for maintenance according to claim 1, wherein: Guide grooves (26) are formed on both sides of the storage box (22). A V-shaped groove (27) is arranged at one end of the guide groove (26). A plurality of ventilation grooves (28) are formed in the installation box (21). Both the opening groove (23) and the movable rod (25) are of T-shaped structures, and the movable rod (25) slides in the opening groove (23).

3. A high and low voltage complete switchgear that is easy to maintain according to claim 1, characterized in that: A dust filter plate (29) is connected to the heat dissipation box (5). A second motor (30) is fixedly installed on the heat dissipation box (5). A shaft rod is connected to the output shaft of the second motor (30). One end of the shaft rod connected to the second motor (30) passes through the dust filter plate (29) and is connected to a fan blade (31). A plurality of scraping plates (32) are connected to the shaft rod. The scraping plates (32) are of arc-shaped design and are in contact with the upper part of the dust filter plate (29).

4. A high and low voltage complete switchgear that is easy to maintain according to claim 1, characterized in that: A filter cover (33) is threadedly connected to the ventilation pipe (7). The pushing groove (16) is inclinedly arranged on the side plate (15). The connecting rod (17) slides in the pushing groove (16).

5. A high and low voltage complete switchgear that is easy to maintain according to claim 1, characterized in that: Two U-shaped rods (34) are connected to the upper part inside the cabinet body (1), and the two U-shaped rods (34) are distributed on both sides of the heat dissipation box (5). A connecting groove (35) is formed below the cabinet body (1).

6. The low-voltage and high-voltage complete switchgear convenient for maintenance according to claim 5, wherein: Connecting sleeves (36) are connected to both sides above the installation rack (6). The connecting sleeves (36) are slidably connected to the U-shaped rods (34). The sliding bar (19) is of I-shaped design, and the sliding bar (19) is slidably connected to the connecting groove (35).

7. A high and low voltage complete switchgear that is easy to maintain according to claim 1, characterized in that: The threaded rod (11) is rotatably connected in the chute (9), and the threaded rod (11) is in threaded cooperation with the threaded sleeve (13). A guide rod (37) is connected in the chute (9). The guide rod (37) is arranged on one side of the threaded rod (11) and is slidably connected to the moving plate (12).

8. A usage method of a high and low voltage complete switchgear that is convenient for maintenance. The high and low voltage complete switchgear according to any one of claims 1-7 is characterized in that: The usage method includes the following steps: When maintenance is required, the staff rotates the threaded rod (11) by starting the first motor (10). By using the threaded cooperation between the threaded sleeve (13) and the threaded rod (11), the moving plate (12) slides upward along the threaded rod (11) in the chute (9), so that the moving plate (12) drives the connecting plate (14) and the side plate (15) to move together. During the upward movement of the side plate (15), the inclined pushing groove (16) will push the connecting rod (17), prompting the connecting rod (17) to slide in the pushing groove (16) and drive the mounting bracket (6) to move; The sliding strip (19) slides in the connecting groove (35), so that the mounting bracket (6) is smoothly moved out of the cabinet body (1) by the rolling of the universal wheels (20), thereby expanding the operation space for the staff and facilitating the staff to perform operations to complete the maintenance work. Then, the staff places the desiccant in the storage box (22) and pushes the storage box (22) into the installation box (21). At this time, the movable rod (25) will slide into the guide groove (26) and slide along the guide groove (26). When the movable rod (25) moves to the V-shaped groove (27) at one end of the guide groove (26), the movable rod (25) will be pushed by the inclined groove wall of the V-shaped groove (27); Thereby, the movable rod (25) slides in the opening groove (23) to compress the spring (24). Then, with the movement of the storage box (22) and the rebound of the spring (24), the movable rod (25) is prompted to be stuck at the end of the V-shaped groove (27), thereby restricting and fixing the storage box (22) to prevent accidental sliding. The desiccant in the storage box (22) will absorb the moisture inside the cabinet body (1) through the ventilation groove (28). When working, the second motor (30) will rotate the fan blade (31); The rotating fan blade (31) causes air to flow into the cabinet body (1), and prompts the air inside the cabinet body (1) to flow out from the ventilation pipe (7), thereby accelerating the air circulation speed inside the cabinet body (1), avoiding heat accumulation, and improving the heat dissipation efficiency. At this time, the dust filter plate (29) will filter out the dust in the air. At the same time, the scraper (32) will rotate together with the fan blade (31), thereby scraping off the dust attached to the dust filter plate (29) and avoiding the reduction of ventilation efficiency caused by dust blockage.

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