CN210693040U - Self-power-off dehumidification cleaning device for distribution box - Google Patents

Abstract

The utility model discloses a dehumidification and cleaning device for a self-power-off power distribution box, which relates to the technical field of power distribution boxes. Aiming at the problem of poor working performance of the existing power distribution box, the following scheme is proposed, which comprises a power distribution box body The power distribution box is provided with a ventilation cavity and an equipment cavity in sequence from top to bottom, the inner wall of the equipment cavity is screwed with a vertically arranged power distribution equipment main body, and the upper part of the power distribution equipment main body is provided with Horizontally arranged wire mesh, the wire mesh screw is fixed on the inner wall of the power distribution box, the inner wall screw on the top of the ventilation chamber is fixed with a vertically arranged drive motor, and the output end of the drive motor is connected by transmission There are reels set vertically. The utility model can effectively remove the moisture inside the power distribution box, can efficiently clean the heat dissipation window of the power distribution box, can simply and conveniently disassemble and replace the cleaning parts of the power distribution box, and has high work performance. High protection performance, saving manpower.

Description

A dehumidification and cleaning device for self-power-off distribution box

technical field

The utility model relates to the technical field of distribution boxes, in particular to a dehumidification and cleaning device for a self-power-off distribution box.

Background technique

The distribution box is a mass of parameters on the data, which generally constitutes a low-voltage forest. According to the electrical wiring, switchgear, measuring instruments, protective appliances and auxiliary equipment are required to be assembled in a closed or semi-enclosed metal cabinet or on the screen to form a low-voltage power distribution. box. During normal operation, the circuit can be switched on or off by means of manual or automatic switches.

Most of the existing distribution boxes have corresponding cooling windows on both sides, and the cooling windows are used to dissipate heat to the equipment inside the distribution box. During use, the cooling windows on both sides of the distribution box are easily blocked by external dust or debris. In order to allow the distribution box to perform normal heat dissipation, maintenance personnel need to clean the cooling windows of the distribution box from time to time. In this process, it is not only time-consuming and laborious, but also affects the normal operation of the distribution box, and the use effect is not good. For this reason, we propose a dehumidification and cleaning device for self-power distribution boxes.

Utility model content

The dehumidification and cleaning device for a self-power-off distribution box proposed by the utility model solves the problem of poor working performance of the distribution box.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A dehumidification and cleaning device for a self-power-off power distribution box, comprising a power distribution box body, wherein the power distribution box body is provided with a ventilation cavity and an equipment cavity in sequence from top to bottom, and the inner wall of the equipment cavity bottom is fixed with vertical screws. To the main body of the power distribution equipment, there is a horizontally arranged wire mesh above the main body of the power distribution equipment, the wire mesh is screwed on the inner wall of the power distribution box, and the inner wall screws on the top of the ventilation chamber are screwed. A vertically arranged driving motor is fixed, and the output end of the driving motor is drivingly connected with a vertically arranged rotating shaft. On the top, a fan blade arranged horizontally is arranged above the metal wire mesh, and the fan blade is fixedly sleeved on the outer wall of the rotating shaft. Both sides of the top of the body are provided with vertically arranged air supply windows, the air supply windows correspond to the ventilation chambers, and both sides of the rotating shaft are provided with horizontally arranged filter screens, and the filter screens are embedded in On the inner wall between the ventilation cavity and the equipment cavity, two sides of the bottom of the power distribution box are provided with vertically arranged heat dissipation windows, and the heat dissipation windows correspond to the equipment cavity.

Preferably, vertically arranged threaded rods are provided on both sides of the main body of the power distribution equipment, the top of the threaded rod is rotatably connected to the inner wall of the top of the equipment cavity through a bearing, and the bottom of the threaded rod is rotatably connected through a bearing On the inner wall of the bottom of the equipment cavity, the outer wall of the threaded rod is threadedly sleeved with a threaded sleeve, one side of the threaded sleeve is provided with a vertically arranged cleaning brush, the threaded sleeve is provided with a fixing mechanism, the cleaning The brush is fixed on the threaded sleeve by the fixing mechanism, the bristles of the cleaning brush are in contact with the heat dissipation window, the two ends of the cleaning brush are slidably connected with the inner wall of the power distribution box, and the outer wall of the top of the threaded rod is fixedly sleeved with A driven wheel, a driving wheel is arranged above the fan blade, the driving wheel is fixedly sleeved on the outer wall of the rotating shaft, a belt is provided on the outside of the driven wheel and the driving wheel, and the driven wheel, the driving wheel and the belt are meshed Work.

Preferably, the fixing mechanism includes a linkage block, an installation groove, a linkage ring, a fixed block, a sliding groove, a return spring and a fixed groove, the linkage block is screwed to the side of the cleaning brush close to the threaded sleeve, and the installation groove is opened On the side of the threaded sleeve close to the cleaning brush, the linkage block is movably sleeved inside the installation groove, the linkage ring is located above the threaded sleeve, the linkage ring is movably sleeved outside the threaded rod, and the fixing block Welded on the bottom of the linkage ring close to one end of the cleaning brush, the sliding groove is located above the installation groove and is opened on the threaded sleeve, the fixing block is movably sleeved inside the sliding groove, and the return spring is movably sleeved on the fixed outside the block and inside the sliding groove, one end of the return spring is welded on the inner wall of the sliding groove, the other end of the return spring is welded on the bottom of the linkage ring, and the fixing groove is opened on the top of the linkage block, One end of the fixing block away from the linkage ring extends out of the sliding groove, and is movably sleeved inside the fixing groove.

Preferably, a movable door is hinged on one side of the outside of the power distribution box through a hinge, the movable door corresponds to the equipment cavity, and an outer wall of the movable door is provided with a sealing ring along the circumferential direction.

Preferably, the inner wall between the ventilation cavity and the equipment cavity is provided with a first rotating groove, and the rotating shaft is rotatably sleeved inside the first rotating groove.

Preferably, both ends of the wire mesh are provided with a second rotation groove, and the threaded rod is rotatably sleeved inside the second rotation groove.

In this utility model:

1. Through the power distribution box, ventilation cavity, equipment cavity, power distribution equipment main body, wire mesh, drive motor, rotating shaft, fan blade, heating wire, air supply window, filter screen, heat dissipation window, threaded rod, threaded sleeve The cooperation of the cleaning brush, the driven wheel, the driving wheel and the belt can effectively remove the moisture inside the distribution box, and prevent the moisture in the rainy weather from eroding to the parts inside the distribution box, causing the inside of the distribution box to be damaged. The aging of the parts of the power distribution box will cause damage to the power distribution box, effectively protect the power distribution box, and efficiently clean the heat dissipation window of the power distribution box to prevent the heat dissipation window of the power distribution box from being damaged by external dust or impurities. The blockage of the material will cause the distribution box to be unable to perform normal heat dissipation work, improve the working performance of the distribution box, and avoid maintenance personnel to manually clean the heat dissipation window of the distribution box, saving manpower.

2. Through the cooperation of the linkage block, installation groove, linkage ring, fixed block, sliding groove, return spring, fixed groove and movable door, the cleaning parts of the distribution box can be easily and conveniently disassembled and replaced, and the distribution box can be improved. long battery life and easy to use.

Description of drawings

Fig. 1 is the structural representation of a kind of dehumidification cleaning device for self-power-off distribution box proposed by the utility model;

Fig. 2 is a partial enlarged view of part A in Fig. 1;

FIG. 3 is a front view of a dehumidification and cleaning device for a self-power-off distribution box proposed by the utility model.

Labels in the figure: 1. Power distribution box; 2. Ventilation cavity; 3. Equipment cavity; 4. Power distribution equipment body; 5. Wire mesh; 6. Drive motor; 7. Rotating shaft; 8. Fan blade; 9 , heating wire; 10, air supply window; 11, filter screen; 12, cooling window; 13, threaded rod; 14, threaded sleeve; 15, cleaning brush; 16, driven wheel; 17, driving wheel; 18, belt; 19 , linkage block; 20, installation groove; 21, linkage ring; 22, fixed block; 23, sliding groove; 24, return spring; 25, fixed groove; 26, movable door.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Referring to Figures 1-3, a dehumidification and cleaning device for a self-powering distribution box includes a distribution box 1, and the distribution box 1 is provided with a ventilation cavity 2 and an equipment cavity 3 from top to bottom in sequence, and the equipment cavity 3 The inner wall of the bottom is screwed with a vertically arranged power distribution equipment main body 4, and a horizontally arranged metal wire mesh 5 is arranged above the power distribution equipment main body 4. The inner wall screw on the top of the air cavity 2 is fixed with a vertically arranged driving motor 6, the driving motor 6 is a forward and reverse rotation motor, and the output end of the driving motor 6 is driven and connected with a vertically arranged rotating shaft 7, and the rotating shaft 7 is away from the driving motor 6. One end extends to the inside of the equipment cavity 3, and is rotatably connected to the top of the wire mesh 5 through a bearing. The top of the wire mesh 5 is provided with a fan blade 8 arranged horizontally, and the fan blade 8 is fixedly sleeved on the outer wall of the rotating shaft 7, The top of the wire mesh 5 is installed with a horizontally arranged heating wire 9, and both sides of the top of the power distribution box 1 are provided with vertically arranged air supply windows 10. The air supply windows 10 correspond to the ventilation chamber 2, and the rotating shaft 7 Both sides of the power distribution box 1 are provided with horizontally arranged filter screens 11. The filter screens 11 are embedded on the inner wall between the ventilation cavity 2 and the equipment cavity 3. Both sides of the bottom of the power distribution box 1 are provided with vertically arranged heat sinks. The window 12 and the cooling window 12 correspond to the equipment cavity 3. When the power distribution equipment main body 4 operates in the rainy weather, in order to prevent the original parts inside the power distribution equipment main body 4 from being eroded by the moisture of the rainy weather, the motor can be driven by the drive motor. The operation of 6 drives the rotating shaft 7 to rotate. At this time, the rotation of the rotating shaft 7 can drive the fan blade 8 to rotate, and the airflow inside the power distribution box 1 is driven. 5 is heated. At this time, the airflow entering the equipment cavity 3 through the wire mesh 5 will be a drying heat flow. At this time, the moisture in the main body 4 of the power distribution equipment can be removed through the drying heat flow to avoid the rainy weather. The moisture corrodes the components inside the power distribution equipment main body 4 , causing the components inside the power distribution equipment main body 4 to age, thereby causing damage to the power distribution equipment main body 4 , and efficiently protecting the power distribution equipment main body 4 .

Both sides of the power distribution equipment main body 4 are provided with vertically arranged threaded rods 13 , the top of the threaded rod 13 is connected to the inner wall of the top of the equipment cavity 3 through a bearing, and the bottom of the threaded rod 13 is connected to the equipment cavity 3 through a bearing. On the inner wall of the bottom, the outer wall of the threaded rod 13 is threadedly sleeved with a threaded sleeve 14, one side of the threaded sleeve 14 is provided with a vertically arranged cleaning brush 15, the threaded sleeve 14 is provided with a fixing mechanism, and the cleaning brush 15 is fixed by the fixing mechanism On the threaded sleeve 14, the bristles of the cleaning brush 15 are in contact with the heat dissipation window 12, the two ends of the cleaning brush 15 are slidably connected to the inner wall of the power distribution box 1, and the outer wall of the top of the threaded rod 13 is fixedly sleeved with the driven wheel 16. The top of the blade 8 is provided with a driving wheel 17, the driving wheel 17 is fixedly sleeved on the outer wall of the rotating shaft 7, the driven wheel 16 and the driving wheel 17 are provided with a belt 18 outside, and the driven wheel 16, the driving wheel 17 and the belt 18 mesh work, And when the rotating shaft 7 rotates, it will drive the driving wheel 17 to rotate. At this time, through the rotating driving wheel 17, the belt 18 is driven to run through the meshing work of the driven wheel 16, the driving wheel 17 and the belt 18. Through the operation of the belt 18, the driven wheel 16 is driven to rotate. At this time, the threaded rod 13 can be driven to rotate through the rotating driven wheel 16. Vertical displacement, at this time, the vertically displaced threaded sleeve 14 can drive the cleaning brush 15 to perform vertical displacement, and at this time, the vertically displaced cleaning brush 15 can be used to clean the heat dissipation window 12 to prevent the heat dissipation window 12 from being damaged by the outside world. Blocked by dust or debris, the distribution box cannot perform normal heat dissipation work, which improves the working performance of the distribution box, prevents maintenance personnel from manually cleaning the heat dissipation window 12 of the distribution box, and saves manpower.

And because the driving motor is a 6-position forward and reverse motor, when the cleaning brush 15 is displaced to the bottom of the equipment cavity 3, the driving motor 6 will run in the reverse direction, thereby driving the cleaning brush 15 to perform reverse displacement, avoiding the cleaning brush 15. It is stuck inside the equipment cavity 3, and since both ends of the cleaning brush 15 are slidably connected to the inner wall of the power distribution box 1, the cleaning brush 15 is limited by the power distribution box 1 and will not be deflected, improving the cleaning efficiency. 15 stable performance.

The fixing mechanism includes a linkage block 19, an installation groove 20, a linkage ring 21, a fixed block 22, a sliding groove 23, a return spring 24 and a fixed groove 25. The linkage block 19 is screwed to the side of the cleaning brush 15 close to the threaded sleeve 14, and the installation groove 20 is opened on the side of the threaded sleeve 14 close to the cleaning brush 15, the linkage block 19 is movably sleeved inside the installation groove 20, the linkage ring 21 is located above the threaded sleeve 14, and the linkage ring 21 is movably sleeved on the outside of the threaded rod 13, The fixing block 22 is welded on the bottom of the linkage ring 21 close to one end of the cleaning brush 15. The sliding groove 23 is located above the installation groove 20 and is set on the threaded sleeve 14. The fixing block 22 is movably sleeved inside the sliding groove 23. The return spring 24 The movable sleeve is arranged on the outside of the fixed block 22 and is located inside the sliding groove 23. One end of the reset spring 24 is welded on the inner wall of the sliding groove 23, and the other end of the reset spring 24 is welded on the bottom of the linkage ring 21. The fixed groove 25 is opened. On the top of the linkage block 19, the end of the fixed block 22 away from the linkage ring 21 extends out of the sliding groove 23, and is movably sleeved inside the fixed groove 25, and when the cleaning brush 15 is used for a long time, wear or tear occurs. If it is damaged and needs to be replaced, the user can pull the linkage ring 21. At this time, the elasticity of the return spring 24 can drive the linkage ring 21 to move vertically, drive the fixed block 22 to move vertically, and drive the fixed block 22 to disengage. Inside the fixing groove 25 , the user can pull the cleaning brush 15 to drive the linkage block 19 on the cleaning brush 15 to disengage from the interior of the installation groove 20 , and the user can easily replace the cleaning brush 15 .

And when the user needs to install a new cleaning brush 15, the user can clip the linkage block 19 on the new cleaning brush 15 into the interior of the installation groove 20, and the user can loosen the linkage ring 21 at this time. Through the reset elasticity of the reset spring 24, the linkage ring 21 is driven to perform vertical displacement, the fixed block 22 is driven to perform vertical displacement, and the fixed block 22 is driven to enter the interior of the fixed groove 25. At this time, the new cleaning brush 15 is fixed on the power distribution board. Inside the box body 1, the cooling window 12 can be continuously cleaned by a new cleaning brush 15 at this time.

A movable door 26 is hinged on one side of the outside of the power distribution box 1 through a hinge. The movable door 26 corresponds to the equipment cavity 3. The outer wall of the movable door 26 is provided with a sealing ring along the circumferential direction. Through the movable door 26, the user can easily open the The electrical box 1 is convenient for the user to perform maintenance on the main body 4 of the power distribution equipment and to replace the cleaning brush 14 .

The inner wall between the ventilation cavity 2 and the equipment cavity 3 is provided with a first rotating groove, and the rotating shaft 7 is rotatably sleeved inside the first rotating groove. Through the first rotating groove, the rotating shaft 7 can be flexibly rotated.

Two ends of the wire mesh 5 are provided with second rotating grooves, and the threaded rod 13 is rotatably sleeved inside the second rotating groove. Through the second rotating groove, the threaded rod 13 can be flexibly rotated.

Working principle: When the main body 4 of the power distribution equipment operates in the rainy weather, in order to prevent the original parts inside the main body 4 of the power distribution equipment from being eroded by the moisture of the rainy weather, the rotating shaft 7 can be driven to rotate by the operation of the driving motor 6 at this time. At this time, the rotation of the rotating shaft 7 can drive the fan blade 8 to rotate, and the airflow inside the power distribution box 1 can be driven. At this time, the wire mesh 5 can be heated by the operation of the heating wire 9. 5. The airflow entering the equipment cavity 3 will be dry heat flow. At this time, the dry heat flow can be used to remove the moisture inside the power distribution equipment main body 4, so as to avoid the moisture in the rainy weather from eroding to the power distribution equipment main body 4. The internal components cause the aging of the components inside the power distribution equipment main body 4, thereby causing the power distribution equipment main body 4 to be damaged, effectively protecting the power distribution equipment main body 4, and when the rotating shaft 7 rotates, it will drive The driving wheel 17 rotates, and at this time, the driving wheel 17 can be rotated. At this time, through the meshing work of the driven wheel 16, the driving wheel 17 and the belt 18, the belt 18 is driven to run, and the driven wheel 16 is driven by the running of the belt 18. At this time, the threaded rod 13 can be driven to rotate through the rotating driven wheel 16. At this time, the threaded rod 13 and the threaded sleeve 14 can cooperate to drive the threaded sleeve 14 to perform vertical displacement. At this time, the vertical displacement can be carried out. The threaded sleeve 14 drives the cleaning brush 15 to move vertically. At this time, the radiating window 12 can be cleaned by the vertically displaced cleaning brush 15 to prevent the radiating window 12 from being blocked by external dust or debris, resulting in the distribution box. It is impossible to carry out normal heat dissipation work, improve the working performance of the distribution box, and avoid maintenance personnel to manually clean the heat dissipation window 12 of the distribution box, saving manpower. When it is displaced to the bottom of the equipment cavity 3, the driving motor 6 will run in the reverse direction, thereby driving the cleaning brush 15 to perform reverse displacement, so as to prevent the cleaning brush 15 from being stuck inside the equipment cavity 3. The inner wall of the power distribution box 1 is slidably connected, so the cleaning brush 15 is limited by the power distribution box 1 and will not deflect, which improves the stability of the cleaning brush 15, and when the cleaning brush 15 works for a long time, When it is worn or damaged and needs to be replaced, the user can pull the linkage ring 21 at this time. At this time, the elasticity of the return spring 24 can drive the linkage ring 21 to move vertically, drive the fixing block 22 to move vertically, and drive the fixed block 22 to move vertically. The block 22 is separated from the interior of the fixing groove 25. At this time, the user can pull the cleaning brush 15 to drive the linkage block 19 on the cleaning brush 15 to leave the interior of the installation groove 20. At this time, the user can easily replace the cleaning brush 15, and When the user needs to install a new cleaning brush 15, the user can clip the linkage block 19 on the new cleaning brush 15 into the interior of the installation groove 20, and the user can loosen the linkage ring 21 at this time. The reset elasticity of the reset spring 24 drives the linkage ring 21 to perform vertical displacement, drives the fixed block 22 to perform vertical displacement, and drives the fixed block 22 to enter the fixed groove 25 , at this time, the new cleaning brush 15 is fixed inside the power distribution box 1 , and at this time, the cooling window 12 can be continuously cleaned by the new cleaning brush 15 .

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, so it cannot be construed as a limitation to the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. A dehumidification and cleaning device for a self-power-off power distribution box, comprising a power distribution box body (1), characterized in that the power distribution box body (1) is provided with ventilation chambers (2) sequentially from top to bottom and an equipment cavity (3), the inner wall of the bottom of the equipment cavity (3) is screwed with a vertically arranged power distribution equipment main body (4), and a horizontally arranged metal wire is arranged above the power distribution equipment main body (4). A net (5), the wire mesh (5) is screwed on the inner wall of the power distribution box (1), and the vertical drive motor (6) is fixed with screws on the inner wall of the top of the ventilation chamber (2). , the output end of the drive motor (6) is connected with a vertically arranged rotating shaft (7), and the end of the rotating shaft (7) away from the drive motor (6) extends to the inside of the equipment cavity (3), and passes through the bearing It is rotatably connected to the top of the wire mesh (5), and a fan blade (8) arranged horizontally is arranged above the wire mesh (5), and the fan blade (8) is fixedly sleeved on the outer wall of the rotating shaft (7). On the top of the wire mesh (5), a horizontally arranged heating wire (9) is installed, and both sides of the top of the power distribution box (1) are provided with vertically arranged air supply windows (10), The air supply window (10) corresponds to the ventilation cavity (2), and both sides of the rotating shaft (7) are provided with horizontally arranged filter screens (11), and the filter screens (11) are embedded in the changer. On the inner wall between the air cavity (2) and the equipment cavity (3), vertically arranged heat dissipation windows (12) are provided on both sides of the bottom of the power distribution box (1). The heat dissipation windows (12) Corresponds to the device cavity (3). 2. A dehumidification and cleaning device for a self-power-off power distribution box according to claim 1, characterized in that both sides of the power distribution equipment main body (4) are provided with vertically arranged threaded rods (13) , the top of the threaded rod (13) is rotatably connected to the inner wall of the top of the equipment cavity (3) through a bearing, and the bottom of the threaded rod (13) is rotatably connected to the inner wall of the bottom of the equipment cavity (3) through a bearing, so The outer wall of the threaded rod (13) is threadedly sleeved with a threaded sleeve (14), one side of the threaded sleeve (14) is provided with a vertically arranged cleaning brush (15), and the threaded sleeve (14) is provided with A fixing mechanism, the cleaning brush (15) is fixed on the threaded sleeve (14) by the fixing mechanism, the bristles of the cleaning brush (15) are in contact with the heat dissipation window (12), the two ends of the cleaning brush (15) It is slidably connected with the inner wall of the power distribution box (1), the outer wall of the top of the threaded rod (13) is fixedly sleeved with a driven wheel (16), and a driving wheel (17) is arranged above the fan blade (8), The driving wheel (17) is fixedly sleeved on the outer wall of the rotating shaft (7), and a belt (18) is provided on the outside of the driven wheel (16) and the driving wheel (17). The pulley (17) and the belt (18) work in mesh. 3. A dehumidification and cleaning device for a self-power-off distribution box according to claim 2, characterized in that the fixing mechanism comprises a linkage block (19), a mounting groove (20), a linkage ring (21), a fixing mechanism A block (22), a sliding groove (23), a return spring (24) and a fixing groove (25), the linkage block (19) is screwed on the side of the cleaning brush (15) close to the threaded sleeve (14), the The installation groove (20) is opened on the side of the threaded sleeve (14) close to the cleaning brush (15), the linkage block (19) is movably sleeved inside the installation groove (20), and the linkage ring (21) is located in the thread Above the sleeve (14), the linkage ring (21) is movably sleeved on the outside of the threaded rod (13), and the fixing block (22) is welded on the bottom of the linkage ring (21) close to one end of the cleaning brush (15), The sliding groove (23) is located above the installation groove (20) and is set on the threaded sleeve (14), the fixing block (22) is movably sleeved inside the sliding groove (23), and the return spring ( 24) The movable sleeve is set on the outside of the fixed block (22) and is located inside the sliding groove (23). One end of the return spring (24) is welded on the inner wall of the sliding groove (23). The return spring (24) ) is welded on the bottom of the linkage ring (21), the fixing groove (25) is opened on the top of the linkage block (19), and the fixed block (22) extends away from the end of the linkage ring (21) with a sliding groove extending out (23), and the movable sleeve is arranged inside the fixing groove (25). 4. A dehumidification and cleaning device for a self-power-off distribution box according to claim 1, characterized in that a movable door (26) is hinged on one side of the outside of the distribution box (1) through a hinge, so The movable door (26) corresponds to the equipment cavity (3), and the outer wall of the movable door (26) is provided with a sealing ring along the circumferential direction. 5. A dehumidification and cleaning device for a self-power-off distribution box according to claim 1, characterized in that a first rotation groove is opened on the inner wall between the ventilation cavity (2) and the equipment cavity (3). , the rotating shaft (7) is rotatably sleeved inside the first rotating groove. 6. A dehumidification and cleaning device for a self-power-off distribution box according to claim 2, characterized in that the two ends of the wire mesh (5) are provided with a second rotation groove, and the threaded rod (13) ) rotating sleeve is arranged inside the second rotating groove.

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