CN221551730U - Dustproof device of circuit breaker - Google Patents

Abstract

The utility model relates to the technical field of dustproof devices and discloses a dustproof device for a circuit breaker, which comprises a box body, wherein a first air suction pipe and a second air suction pipe are fixedly connected to the upper surface and the lower surface of the box body respectively, an ash suction hopper is fixedly connected to the upper surface and the lower surface of the interior of the box body, the first air suction pipe and the second air suction pipe suck air in the box body through the ash suction hopper, and one end of the first air suction pipe is fixedly connected to the outer wall of the second air suction pipe. According to the utility model, the first suction pipe and the second suction pipe are enabled to suck air from the box body through the ash suction hopper through the starting of the first suction pump and the second suction pump, and dust floating in the box body is sucked into the collection box, so that on one hand, heat generated by the circuit breaker in operation can be dissipated, and on the other hand, the risk of cleaning the floating dust to adhere to the surface of the circuit breaker and reducing pollutant deposition and heat accumulation can be avoided.

Description

Dustproof device of circuit breaker

Technical Field

The utility model relates to the technical field of dustproof devices, in particular to a dustproof device of a circuit breaker.

Background

The circuit breaker is a switching device capable of switching on and off a current under normal loop conditions and also capable of switching on and off a current under abnormal loop conditions within a prescribed period of time, and is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, the high-voltage boundary line and the low-voltage boundary line are more fuzzy, the circuit breaker is generally called a high-voltage electric appliance with the voltage of more than 3kV, and the ammeter circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently and protecting a power supply line, the motor and the like.

The existing circuit breaker dust keeper is simple dust cover, is unfavorable for the ventilation and heat dissipation of the circuit breaker, can not timely clean the circuit breaker after entering dust, can only change the dust cover after the circuit breaker is used for a long time, and can carry out outage cleaning on the circuit breaker, so that the waste of the dust cover is greatly caused, and the use of a circuit is also influenced by outage.

Disclosure of utility model

In order to make up for the defects, the utility model provides the dustproof device of the circuit breaker, which aims to improve the problems that the existing dustproof device of the circuit breaker is a simple dustproof cover, is unfavorable for ventilation and heat dissipation of the circuit breaker, cannot be cleaned in time after the circuit breaker enters dust, can only be replaced after the circuit breaker is used for a long time, and can be cleaned by power failure, so that the waste of the dustproof cover is greatly caused, and the use of a circuit is influenced by power failure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a breaker dust keeper, includes the box, the upper surface and the lower surface of box are first breathing pipe of fixedly connected with respectively and second breathing pipe, the inside upper surface and the lower surface fixedly connected with ash suction hopper of box, first breathing pipe and second breathing pipe draw through ash suction hopper to the air in the box, the one end fixed connection of first breathing pipe is at the outer wall of second breathing pipe, and the one end fixed connection of first breathing pipe is on first breathing pipe, and then lets the absorptive dust of first breathing pipe carry to the second breathing pipe in, and then let absorptive dust carry jointly in the collecting box through the pipeline of second breathing pipe, be provided with first suction pump on the first breathing pipe, be provided with check valve and second suction pump on the second breathing pipe respectively, the first suction pump on the check valve avoids leading to the dust backward flow in the second breathing pipe when starting to carry to the second breathing pipe in, the upper surface fixedly connected with collecting box of box is used for collecting the dust, the one end fixed connection of second breathing pipe is on the collecting box at first breathing pipe, and then let absorptive dust carry out the centre gripping mechanism on the upper surface of box and the lower surface of box and the centre gripping device is placed under the centre gripping device is to the internal side of the box, thereby the centre gripping device is placed on the surface of the box and the centre gripping device is held down on the surface of the box.

As a further description of the above technical solution:

The auxiliary clamping mechanism comprises a second connecting plate and a second clamping plate, the second fixing rods are connected to the four corners of the second connecting plate in a sliding mode, the second clamping plate is fixedly connected to one end of the second fixing rods, springs are arranged on the second fixing rods, when the circuit breaker is plugged into the box body, the upper surface and the lower surface of the circuit breaker extrude the second clamping plate to move outwards, then when the circuit breaker is plugged into the box body, the second clamping plate can extrude the springs on the second fixing rods, then when the circuit breaker is completely plugged into the box body, the springs extend outwards due to shrinkage force, and accordingly the second clamping plate is attached to the surface of the circuit breaker, and the upper surface and the lower surface of the circuit breaker are clamped in an auxiliary mode.

As a further description of the above technical solution:

The inside one side fixedly connected with first fixed case of box, box opposite side fixedly connected with second fixed case, first fixed case protects with the fixed case of second and supports the device in first fixed case and the fixed case of second.

As a further description of the above technical solution:

One side of the first fixed box is fixedly connected with a first motor, the inside of the center of the first fixed box is rotationally connected with a rotating shaft, one end of the rotating shaft is fixedly connected with the output end of the first motor, the outer wall of the rotating shaft is fixedly connected with a first gear, the rotating shaft is driven by the first motor so that the first gear on the rotating shaft rotates in the first fixed box, connecting strips are slidably connected to the front side and the rear side of the inside of the first fixed box, one side of each connecting strip is fixedly connected with a second rack, the connecting strips are symmetrically arranged on the two sides of the outer wall of the first gear through the first racks, one end of each connecting strip is fixedly connected with a connecting block, and when the first gear is driven, let the connecting strip that first gear bilateral symmetry set up to upper and lower both ends or remove to center department, the one end fixedly connected with connecting block of connecting strip, the inside of the fixed case of second is provided with getter device, lets first connecting pipe have suction through getter device, the connecting block rotates and is connected with first connecting pipe, a plurality of ventholes have been seted up to the outer wall of first connecting pipe, set up the venthole through first connecting pipe outer wall, carry out the interior air of absorption box that lasts through the venthole to the on-off surface of circuit breaker when getter device bleeds to first connecting pipe, avoid the dust to fall to the on-off surface of circuit breaker and, increase the radiating efficiency to the circuit breaker in the box.

As a further description of the above technical solution:

Clamping device includes first dead lever, first dead lever sliding connection is in the inside both sides of box respectively, the one end fixedly connected with first connecting plate of first dead lever, the other end fixedly connected with first splint of first dead lever, the inside threaded connection of first connecting plate has the threaded rod, the one end fixedly connected with handle of threaded rod, the other end rotation of threaded rod is connected at the outer wall of box, the upper surface and the lower surface of box all are provided with supplementary fixture, place the circuit breaker at first in the box, and the inside upper and lower surface of box sets up supplementary fixture carries out the centre gripping to the upper surface of short circuit breaker, later rotates through the handle on the box outer wall both sides to let the threaded rod rotate, make first connecting plate remove on the threaded rod, thereby promote the first splint of the inside both sides of box to removing to the center department of box through first dead lever, thereby carry out the centre gripping to the circuit breaker both sides in the box, thereby firm circuit breaker in the box.

As a further description of the above technical solution:

The first sliding grooves are formed in one side, opposite to the first fixed box and the second fixed box, of each first fixed box, two second sliding grooves are uniformly formed in the other side of each second fixed box, and when the connecting strip drives the first connecting pipe to move through the connecting block, two ends of the first connecting pipe are respectively arranged in the first sliding grooves formed in the first fixed box and the second fixed box. Let the position direction when the removal of first connecting pipe, two run through between the second spout and seted up first spout, the inside one side fixedly connected with first rack of second fixed box.

As a further description of the above technical solution:

The utility model provides a suction mechanism includes the slide, the slide rotates the one end of connecting pipe of connection at first, two sliders of one side fixedly connected with of slide, the opposite side fixedly connected with pump of slide, the output fixed connection of pump is at the one end of first connecting pipe, the slide passes through the inner wall of slider sliding connection at the second spout, when the pump during operation of slide one side, to first connecting pipe bleed for first connecting pipe carries out the suction that lasts through the venthole in circuit breaker switch department and avoids the dust to fall the switch surface of circuit breaker, the one end rotation of first connecting pipe is connected in the inside of connecting block, and the other end rotation is connected with the second gear, through setting up first connecting pipe one end inside the connecting block, and then when letting the connecting strip go up and down, drive first connecting pipe through the connecting block and remove, the second gear meshes with first rack to still rotate the second gear at the other end of first connecting pipe, when first connecting pipe moves in first spout, the second gear moves on first rack, thereby improves the efficiency when removing the other end of first connecting pipe.

As a further description of the above technical solution:

The output of pump fixed connection is second connecting pipe afterwards, the one end fixedly connected with flexible hose of second connecting pipe, the one end fixedly connected with third connecting pipe of flexible hose, the one end fixedly connected with of third connecting pipe is at the fourth connecting pipe, when the pump work, carries the second connecting pipe through the air of first connecting pipe follow box internal extraction, later in through carrying the flexible hose that connects to the second connecting pipe, later in the fourth connecting pipe that rethread second connecting pipe connects, later carry second breathing pipe and first breathing pipe and carry the collecting box jointly in.

The utility model has the following beneficial effects:

1. According to the utility model, the first suction pipe and the second suction pipe are enabled to suck air from the box body through the ash suction hopper through the starting of the first suction pump and the second suction pump, and dust floating in the box body is sucked into the collection box, so that on one hand, heat generated by the circuit breaker during operation can be dissipated, on the other hand, the risk of pollutant deposition and heat accumulation can be reduced by preventing the dust floating in cleaning from adhering to the surface of the circuit breaker, two sides of the circuit breaker are clamped through the clamping device, and the upper surface and the lower surface of the circuit breaker are clamped through the auxiliary clamping mechanism, so that the circuit breaker is clamped more stably.

2. According to the utility model, when the first connecting pipe is driven by the first motor to move up and down, the air in the box body is pumped through the air outlet hole formed in the first connecting pipe by the air suction mechanism, so that the problem that dust, dirt and other impurities can be accumulated in a switch position when the circuit breaker is used for a period of time, the normal operation and the working reliability of the switch are improved, and the problems that the switch is difficult to switch due to the influence of the dust and the friction and abrasion of the movable part of the switch caused by the attachment of the dust on the movable part of the switch are solved.

Drawings

Fig. 1 is a cross-sectional view of a dust-proof device for a circuit breaker according to the present utility model;

Fig. 2 is a schematic perspective view of a part of a dustproof device of a circuit breaker according to the present utility model;

Fig. 3 is a schematic perspective view of a part of a dustproof device of a circuit breaker according to the present utility model;

Fig. 4 is a schematic perspective view of a connecting bar of a dustproof device of a circuit breaker according to the present utility model;

fig. 5 is a schematic perspective view of a dustproof device for a circuit breaker according to the present utility model.

Legend description:

1. A case; 2. a first fixed box; 3. a second fixed box; 4. a first chute; 5. a first rack; 6. a rotating shaft; 7. a first gear; 8. a first motor; 9. a connecting strip; 10. a second rack; 11. a connecting block; 12. a first connection pipe; 13. an air outlet hole; 14. a slide plate; 15. a slide block; 16. pumping; 17. a second gear; 18. an ash suction hopper; 19. a first air suction pipe; 20. a first getter pump; 21. a second air suction pipe; 22. a collection box; 23. a second getter pump; 24. a one-way valve; 25. a second chute; 26. a first connection plate; 27. a first fixing rod; 28. a first clamping plate; 29. a threaded rod; 30. a handle; 31. a second connecting plate; 32. a second fixing rod; 33. a second clamping plate; 34. a spring; 35. a second connection pipe; 36. a flexible hose; 37. a third connection pipe; 38. and a fourth connecting pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a circuit breaker dust keeper, including box 1, the upper surface of box 1 and lower surface are fixedly connected with first breathing pipe 19 and second breathing pipe 21 respectively, the inside upper surface of box 1 and lower surface fixedly connected with suction hopper 18, first breathing pipe 19 and second breathing pipe 21 suck the air in the box 1 through suction hopper 18, the one end fixed connection of first breathing pipe 19 is on the outer wall of second breathing pipe 21, one end fixed connection at first breathing pipe 19 is on second breathing pipe 21, and then let the dust of first breathing pipe 19 absorption transport to second breathing pipe 21 in, and then let the dust of absorption pass through the pipeline of second breathing pipe 21 jointly and carry in collection box 22, be provided with first suction pump 20 on the first breathing pipe 19, be provided with check valve 24 and second suction pump 23 on the second breathing pipe 21 respectively, check valve 24 avoid first suction pump 20 on the first breathing pipe 19 to start and lead to the backward flow dust in the second breathing pipe 21 when carrying to second breathing pipe 21.

Secondly, the upper surface fixedly connected with collection box 22 of box 1, collection box 22 is used for the collection to the dust, the one end fixed connection of second breathing pipe 21 is at the upper surface of collection box 22, the inside filter screen that is provided with of collection box 22, the air vent has been seted up to collection box 22 one side of keeping away from second breathing pipe 21, the upper surface and the lower surface of box 1 all are provided with auxiliary clamping mechanism, at first place the circuit breaker in box 1, and the auxiliary clamping mechanism that the inside upper and lower surface of box 1 set up carries out the centre gripping to the upper surface of circuit breaker, the inside both sides of box 1 are provided with clamping device, the upper surface and the lower surface of box 1 all are provided with auxiliary clamping mechanism, later carry out the centre gripping through clamping device to the both sides of circuit breaker, thereby firm circuit breaker in the box 1.

Referring to fig. 2 to 5, the auxiliary clamping mechanism includes a second connection plate 31, a second clamping plate 33, a second fixing rod 32 slidably connected to the inside of four corners of the second connection plate 31, the second clamping plate 33 fixedly connected to one end of the second fixing rod 32, a spring 34 provided on the second fixing rod 32, when the circuit breaker is plugged into the case 1, the upper surface and the lower surface of the circuit breaker press the second clamping plate 33 to move outwards, so that when the circuit breaker is plugged, the second clamping plate 33 presses the spring 34 on the second fixing rod 32, and then when the circuit breaker is completely plugged, the spring 34 extends outwards due to a contraction force, so that the second clamping plate 33 is attached to the surface of the circuit breaker, To assist in gripping the upper and lower surfaces of the circuit breaker. The inside one side fixedly connected with first fixed case 2 of box 1, the fixed case 3 of box 1 opposite side fixedly connected with second, first fixed case 2 and the fixed case 3 of second protect and support the device in the fixed case 2 of first and the fixed case 3 of second. One side of the first fixed box 2 is fixedly connected with a first motor 8, the inside of the center of the first fixed box 2 is rotationally connected with a rotating shaft 6, one end of the rotating shaft 6 is fixedly connected with the output end of the first motor 8, the outer wall of the rotating shaft 6 is fixedly connected with a first gear 7, the rotating shaft 6 is driven by the first motor 8 so that the first gear 7 on the rotating shaft 6 rotates in the first fixed box 2, the front side and the rear side of the inside of the first fixed box 2 are both slidingly connected with connecting strips 9, one side of the connecting strips 9 is fixedly connected with a second rack 10, the connecting strips 9 are symmetrically arranged on the two sides of the outer wall of the first gear 7 through the first racks, one end of each connecting strip 9 is fixedly connected with a connecting block 11, When the first gear 7 is driven, the connecting strips 9 symmetrically arranged at the two sides of the first gear 7 move towards the upper end and the lower end or towards the center, one end of each connecting strip 9 is fixedly connected with a connecting block 11, an air suction device is arranged in the second fixing box 3, the first connecting pipe 12 is sucked by the air suction device, the connecting block 11 is rotationally connected with the first connecting pipe 12, the outer wall of the first connecting pipe 12 is provided with a plurality of air outlet holes 13, the outer wall of the first connecting pipe 12 is provided with the air outlet holes 13, when the air suction device pumps the first connecting pipe 12, the air in the box body 1 is continuously sucked through the air outlet holes 13 to the switch face of the circuit breaker, The dust is prevented from falling to the switch surface of the circuit breaker and the heat radiation efficiency of the circuit breaker in the case 1 is increased. The clamping device comprises a first fixed rod 27, the first fixed rod 27 is respectively and slidably connected with two sides of the inside of the box body 1, one end of the first fixed rod 27 is fixedly connected with a first connecting plate 26, the other end of the first fixed rod 27 is fixedly connected with a first clamping plate 28, the inside of the first connecting plate 26 is in threaded connection with a threaded rod 29, one end of the threaded rod 29 is fixedly connected with a handle 30, the other end of the threaded rod 29 is rotationally connected with the outer wall of the box body 1, the upper surface and the lower surface of the box body 1 are respectively provided with an auxiliary clamping mechanism, the circuit breaker is firstly placed in the box body 1, the upper surface of the short circuit breaker is clamped by the auxiliary clamping mechanisms arranged on the upper surface and the lower surface of the inside of the box body 1, Then, the handle 30 on both sides of the outer wall of the case 1 is rotated to rotate the threaded rod 29, so that the first connecting plate 26 moves on the threaded rod 29, and the first clamping plates 28 on both sides of the inside of the case 1 are pushed by the first fixing rod 27 to move towards the center of the case 1, so that both sides of the circuit breaker in the case 1 are clamped, and the circuit breaker in the case 1 is stabilized. The first sliding groove 4 is formed in one side, opposite to the first fixed box 2 and the second fixed box 3, of the first fixed box 2, the two second sliding grooves 25 are uniformly formed in the other side of the second fixed box 3, and when the connecting strip 9 drives the first connecting pipe 12 to move through the connecting block 11, two ends of the first connecting pipe 12 are respectively arranged in the first sliding grooves 4 formed in the first fixed box 2 and the second fixed box 3. The first sliding groove 4 is penetrated between the two second sliding grooves 25 when the first connecting pipe 12 moves, and the first rack 5 is fixedly connected with one side of the inside of the second fixing box 3. The air suction mechanism comprises a slide plate 14, the slide plate 14 is rotationally connected to one end of a first connecting pipe 12, one side of the slide plate 14 is fixedly connected with two sliding blocks 15, the other side of the slide plate 14 is fixedly connected with a suction pump 16, the output end of the suction pump 16 is fixedly connected to one end of the first connecting pipe 12, the slide plate 14 is slidably connected to the inner wall of a second sliding groove 25 through the sliding blocks 15, when the suction pump 16 on one side of the slide plate 14 works, the first connecting pipe 12 is sucked, the first connecting pipe 12 is made to suck continuously on the switch surface of the circuit breaker through the air outlet 13 to prevent dust from falling on the switch surface of the circuit breaker, one end of the first connecting pipe 12 is rotationally connected to the inside of the connecting block 11, the other end is rotationally connected with the second gear 17, one end of the first connecting pipe 12 is arranged inside the connecting block 11, when the connecting strip 9 is lifted, the first connecting pipe 12 is driven to move through the connecting block 11, the second gear 17 is meshed with the first rack 5, the other end of the first connecting pipe 12 is further rotationally provided with the second gear 17, and when the first connecting pipe 12 moves in the first sliding groove 4, the second gear 17 moves on the first rack 5, so that the efficiency of the other end of the first connecting pipe 12 during movement is improved. The output end of the pump 16 is fixedly connected with a second connecting pipe 35, one end of the second connecting pipe 35 is fixedly connected with a telescopic hose 36, one end of the telescopic hose 36 is fixedly connected with a third connecting pipe 37, one end of the third connecting pipe 37 is fixedly connected with a fourth connecting pipe 38, when the pump 16 works, air pumped from the box body 1 through the first connecting pipe 12 is conveyed to the second connecting pipe 35, then conveyed into the telescopic hose 36 connected with the second connecting pipe 35, then conveyed into the fourth connecting pipe 38 connected with the second connecting pipe 35, and then conveyed into the collecting box 22 together with the first air suction pipe 19.

Working principle: when the device is used, the circuit breaker is firstly placed in the box body 1, the auxiliary clamping mechanisms arranged on the upper surface and the lower surface of the interior of the box body 1 clamp the upper surface of the short circuit breaker, then the handles 30 on the two sides of the outer wall of the box body 1 are rotated to enable the threaded rods 29 to rotate, the first connecting plates 26 move on the threaded rods 29, the first clamping plates 28 on the two sides of the interior of the box body 1 are pushed to move towards the center of the box body 1 by the first fixing rods 27 to clamp the two sides of the circuit breaker in the box body 1, the second clamping plates 33 can press the springs 34 on the second fixing rods 32 when the circuit breaker is plugged in, then the springs 34 outwards extend due to contraction force when the circuit breaker is completely plugged in, so that the second clamping plates 33 are attached to the surfaces of the circuit breaker to assist in clamping the upper surface and the lower surface of the circuit breaker, the circuit breaker in the box body 1 is stabilized, then the first motor 8 is started to drive the rotating shaft 6 and the first gear 7 to rotate in the first fixed box 2, at the moment, the connecting strips 9 which are symmetrically meshed and connected to the front side and the rear side of the first gear 7 through the second racks 10 respectively move up and down, so that the first connecting pipe 12 in the connecting block 11 slides in the first sliding groove 4 formed in the first fixed box 2 and the second fixed box 3, the second gear 17 is rotationally connected to the outer wall of one end of the first connecting pipe 12 and meshed with the first racks 5, so that the smoothness of movement is improved when the first connecting pipe 12 moves, a sliding plate 14 is further arranged at one end of the first connecting pipe 12, the pumping pump 16 is fixed through the sliding plate 14, the pumping pump 16 also moves up and down together, a sliding block 15 is further arranged at one side of the sliding plate 14, the slide plate 14 is moved on the inner wall of the second chute 25, so that the suction pump 16 sucks air in the box body 1 through the air outlet on the first connecting pipe 12, cleanliness of the switch surface of the circuit breaker is maintained, heat dissipation is required to be carried out on the upper surface and the lower surface of the circuit breaker, meanwhile, cleanliness is maintained, the first suction pump 20 and the second suction pump 23 on the first suction pipe 19 and the second suction pipe 21 are started simultaneously, dust stored in the box body 1 is sucked into the first suction pipe 19 and the second suction pipe 21 through the dust suction hopper 18, one end of the first suction pipe 19 is fixedly connected to the first suction pipe 19, dust sucked by the first suction pipe 19 is further conveyed into the second suction pipe 21, then conveyed into the collecting box 22 through the second suction pipe 21, a one-way valve 24 is further arranged on the second suction pipe 21, dust backflow in the second suction pipe 21 is avoided when the first suction pipe 19 is conveyed into the second suction pipe 21, the dust backflow in the second suction pipe 21 is caused through the second connecting pipe 35, then the dust backflow in the first suction pipe 19 is sucked into the second suction pipe 36 through the third connecting pipe 36, the fourth connecting pipe 24 is further connected to the fourth connecting pipe 38 through the fourth connecting pipe 37, and the fourth connecting pipe 38 is further connected to the fourth connecting pipe 24, and the dust backflow in the collecting box is prevented from being sucked in the fourth connecting pipe, and the collecting pipe is connected to the fourth connecting pipe, and the dust through the fourth connecting pipe, and the dust is connected to the dust and the dust in the dust and the dust.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. The utility model provides a circuit breaker dust keeper, includes box (1), its characterized in that: the dust suction device comprises a box body (1), and is characterized in that a first air suction pipe (19) and a second air suction pipe (21) are fixedly connected to the upper surface and the lower surface of the box body (1) respectively, an ash suction hopper (18) is fixedly connected to the upper surface and the lower surface of the box body (1), one end of the first air suction pipe (19) is fixedly connected to the outer wall of the second air suction pipe (21), a first air suction pump (20) is arranged on the first air suction pipe (19), a one-way valve (24) and a second air suction pump (23) are arranged on the second air suction pipe (21) respectively, a collecting box (22) is fixedly connected to the upper surface of the box body (1), clamping devices are arranged on two sides of the inner portion of the box body (1), and auxiliary clamping mechanisms are arranged on the upper surface and the lower surface of the box body (1).

2. The dust keeper of claim 1, wherein: the auxiliary clamping mechanism comprises a second connecting plate (31) and a second clamping plate (33), wherein second fixing rods (32) are connected to the four corners of the second connecting plate (31) in a sliding mode, the second clamping plate (33) is fixedly connected to one end of each second fixing rod (32), and springs (34) are arranged on the second fixing rods (32).

3. The dust keeper of claim 1, wherein: the novel box is characterized in that one side of the inside of the box body (1) is fixedly connected with a first fixed box (2), and the other side of the box body (1) is fixedly connected with a second fixed box (3).

4. A circuit breaker dust keeper according to claim 3, wherein: one side fixedly connected with first motor (8) of first fixed box (2), the inside rotation in center department of first fixed box (2) is connected with pivot (6), the one end fixedly connected with of pivot (6) is at the output of first motor (8), the outer wall fixedly connected with first gear (7) of pivot (6), both sides all sliding connection have connecting strip (9) around the inside of first fixed box (2), one side fixedly connected with second rack (10) of connecting strip (9), one end fixedly connected with connecting block (11) of connecting strip (9), second rack (10) and gear engagement, the inside of second fixed box (3) is provided with the mechanism of breathing in, connecting block (11) fixedly connected with first connecting pipe (12), a plurality of ventholes (13) have been seted up to the outer wall of first connecting pipe (12).

5. The dust keeper of claim 1, wherein: clamping device includes first dead lever (27), the inside both sides of first dead lever (27) sliding connection in box (1) respectively, the one end fixedly connected with first connecting plate (26) of first dead lever (27), the other end fixedly connected with first splint (28) of first dead lever (27), the inside threaded connection of first connecting plate (26) has threaded rod (29), the one end fixedly connected with handle (30) of threaded rod (29), the other end rotation of threaded rod (29) is connected at the outer wall of box (1).

6. A circuit breaker dust keeper according to claim 3, wherein: the first sliding grooves (4) are formed in one side, opposite to the second fixed box (3), of the first fixed box (2), two second sliding grooves (25) are uniformly formed in the other side of the second fixed box (3), the first sliding grooves (4) are formed in the second sliding grooves (25) in a penetrating mode, and first racks (5) are fixedly connected to one side of the inside of the second fixed box (3).

7. The dust keeper of claim 4, wherein: the suction mechanism comprises a sliding plate (14), the sliding plate (14) is fixedly connected with one end of a first connecting pipe (12), two sliding blocks (15) are fixedly connected to one side of the sliding plate (14), a suction pump (16) is fixedly connected to the other side of the sliding plate (14), the suction pump (16) is fixedly connected to the other end of the first connecting pipe (12), the sliding plate (14) is slidably connected to the inner wall of a second sliding groove (25) through the sliding blocks (15), one end of the first connecting pipe (12) is rotatably connected to the inside of the connecting block (11), a second gear (17) is rotatably connected to the other end of the first connecting pipe, and the second gear (17) is meshed with the first rack (5).

8. The circuit breaker dust keeper of claim 7, wherein: the output end of pump (16) fixed connection is second connecting pipe (35) afterwards, the one end fixedly connected with flexible hose (36) of second connecting pipe (35), the one end fixedly connected with third connecting pipe (37) of flexible hose (36), the one end fixed connection of third connecting pipe (37) is in fourth connecting pipe (38), the one end fixed connection of fourth connecting pipe (38) is in the inside of second breathing pipe (21).