CN114784649A

CN114784649A - Dustproof electric power cabinet of electric power

Info

Publication number: CN114784649A
Application number: CN202210637531.6A
Authority: CN
Inventors: 金亭汕
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-07-22

Abstract

The invention discloses a dustproof electric power cabinet, which relates to the technical field of electric power cabinets and comprises an electric power cabinet main body, wherein a ventilation opening is formed in the side part of the electric power cabinet main body, a dustproof net is installed in the ventilation opening, a dust collector is installed at the top of the electric power cabinet main body, a connecting hose is installed at an exhaust inlet of the dust collector, and a first motor is installed on the inner wall of the bottom of the electric power cabinet main body. The dust collection device is reasonable in structure, when the first motor is started, the two vertical screw rods can synchronously rotate under the action of the synchronous belt wheel and the synchronous belt, the dust collection head and the dust sensor can be driven to move up and down through the vertical moving block, when the second motor is started, the dust collection head and the dust sensor can be driven to horizontally move through the horizontal screw rod and the T-shaped moving block, the purposes of automatically and comprehensively detecting the interior of the electric power cabinet main body and collecting dust in all directions are achieved, and the condition that the service life is influenced due to the fact that dust is accumulated on electric power components is effectively reduced.

Description

Dustproof electric power cabinet of electric power

Technical Field

The invention relates to the technical field of electric power cabinets, in particular to an electric power dustproof electric power cabinet.

Background

With the development of the times, electric power resources are widely applied to various fields; the electric cabinet is a common electric power infrastructure, a large number of electric power components are arranged in the electric cabinet, and the electric cabinet is final-stage equipment of a power distribution system; at present, most of electric power cabinets are generally provided with ventilation openings so as to facilitate ventilation and heat dissipation.

Most of current electric power cabinets do not have dustproof function, after long-time use, can adhere to a large amount of dusts in the electric power cabinet, if can not in time handle and pile up on electric power parts, can make electric power parts receive the interference of dust and influence its normal work, lead to low in service life, though the dust is regularly cleared up to the accessible manual work, but in the clearance process, comparatively waste time and energy, intensity of labour is big, for this reason, this application discloses an electric power cabinet that prevents dust satisfies people's demand.

Disclosure of Invention

An object of this application is to provide an electric power cabinet that prevents dust to propose in solving above-mentioned background art after long-time the use, can adhere to in the electric power cabinet and have a large amount of dusts, if can not in time handle and pile up on electric power parts, can make electric power parts receive the interference of dust and influence its normal work, lead to the problem that life is low.

In order to achieve the above purpose, the present application provides the following technical solutions: an electric power dustproof electric power cabinet comprises an electric power cabinet main body, wherein a ventilation opening is formed in the side part of the electric power cabinet main body, a dustproof net is installed in the ventilation opening, a dust collector is installed at the top of the electric power cabinet main body, a connecting hose is installed at an exhaust inlet of the dust collector, a first motor is installed on the inner wall of the bottom of the electric power cabinet main body, two vertical screw rods are symmetrically arranged in the electric power cabinet main body, the bottom end of one vertical screw rod is connected with the output end of the first motor, the bottom end of the other vertical screw rod is rotatably installed on the inner wall of the bottom of the electric power cabinet main body, vertical moving blocks are sleeved on the two vertical screw rods in a threaded manner, a second motor is installed on the side part of one vertical moving block, the output end of the second motor penetrates through the vertical moving block and is provided with a horizontal screw rod, the end part of the horizontal screw rod is rotatably installed on the side part of the other vertical moving block, the last screw thread of horizontal screw rod has cup jointed T shape and has moved the piece, the lateral part that the piece was moved in the T shape is installed dust absorption head and dust sensor, coupling hose's tip extends to in the electric power cabinet main part and with the dust absorption head is connected, two install synchronous transmission unit on the vertical screw rod jointly, T shape moves and installs the direction unit on the piece, install in the electric power cabinet main part and be used for closing or opening the dustproof sealing mechanism of vent.

Preferably, the synchronous transmission unit comprises two synchronous belt wheels which are respectively sleeved on the two vertical screw rods, and a synchronous belt is jointly tensioned and sleeved on the two synchronous belt wheels.

Preferably, the guide unit comprises horizontal guide rods which are jointly installed on the mutually close side parts of the two vertical moving blocks, and the T-shaped moving block is sleeved on the horizontal guide rods in a sliding manner.

Preferably, dustproof sealing mechanism is including installing vertical guide rail on the electric power cabinet main part lateral part, slidable mounting on the vertical guide rail have two with vent assorted sealing baffle, two sealing baffle's lateral part all installs the linkage rack through the linking bridge, install in the electric power cabinet main part and be used for making two the linkage subassembly that the linkage rack moved in step in opposite directions or back of the body mutually.

Preferably, the linkage assembly comprises a fixed shaft arranged on the side part of the electric power cabinet main body, a rotating sleeve is sleeved on the fixed shaft in a rotating mode, a linkage gear is sleeved on the rotating sleeve, the linkage gear is meshed with the linkage gear, a rotary unit is arranged on the rotating sleeve, and a fixing unit is arranged on the linkage gear.

Preferably, the rotation unit includes a torsion spring disposed in the rotation sleeve, the torsion spring is sleeved on the fixing shaft, and two ends of the torsion spring are respectively mounted on the outer side of the fixing shaft and the inner wall of the rotation sleeve.

Preferably, the fixing unit comprises a fixing convex block installed on the end portion of the fixing shaft, an operating handle is arranged on the side portion of the fixing convex block, two fixing insertion rods are symmetrically installed on the side portion of the operating handle, a plurality of fixing insertion holes are evenly formed in the side portion of the linkage gear, the end portions of the two fixing insertion rods penetrate through the fixing convex block and extend into the two fixing insertion holes, and a reset unit is installed on the operating handle.

Preferably, the reset unit comprises a reset tension spring sleeved on the fixed insertion rod, and two ends of the reset tension spring are respectively installed on the fixed protruding block and the side portion of the control handle.

Preferably, four hollow sleeves are evenly installed at the bottom of the electric power cabinet main body, four telescopic sliding columns are sleeved in the hollow sleeves in a sliding mode, four movable wheels are installed at the bottom ends of the telescopic sliding columns, and four damping units are installed on the movable wheels.

Preferably, the damping unit is sleeved with a damping spring on the telescopic sliding column, and two ends of the damping spring are respectively attached to the bottom end of the hollow sleeve and the top of the movable wheel.

In conclusion, the technical effects and advantages of the invention are as follows:

1. the dust collection device is reasonable in structure, when the first motor is started, the two vertical screw rods can synchronously rotate under the action of the synchronous belt wheel and the synchronous belt, the dust collection head and the dust sensor can be driven to move up and down through the vertical moving block, when the second motor is started, the dust collection head and the dust sensor can be driven to horizontally move through the horizontal screw rod and the T-shaped moving block, so that the purposes of automatically and comprehensively detecting the interior of the electric power cabinet main body and collecting dust in all directions are achieved, and the condition that the service life is influenced due to the fact that dust is accumulated on electric power components is effectively reduced;

2. according to the electric power cabinet, when the control handle is pulled, the linkage gear can be loosened, one of the sealing baffles can be moved, and the other sealing baffle can be driven by the linkage rack and the linkage gear to synchronously move in the opposite direction or in the opposite direction, so that the purpose of opening or closing the ventilation opening is achieved, when the electric power cabinet main body is not used, the ventilation opening can be closed for sealing, the condition that external dust enters the cabinet body is further reduced, and the dustproof effect is better;

3. when the control handle is loosened, the fixed insertion rod is automatically reset and inserted into the fixed insertion hole under the action of the elastic force of the reset tension spring, and the linkage gear is fixed, so that the position of the sealing baffle plate can be fixed, the size of the ventilation opening can be conveniently adjusted in a matching manner according to the actual operation condition of the electric power cabinet main body, and the application range is enlarged;

4. when the sealing baffle plates are loosened, the rotating sleeve and the linkage gear can automatically rotate reversely under the action of the elastic force of the torsion spring, so that the two sealing baffle plates can be driven to move oppositely to automatically close the ventilation opening, the sealing state can be kept all the time, and convenience and labor saving are realized;

5. according to the invention, through the arrangement of the moving wheels, the cabinet body can be conveniently pushed by a worker to move, when vibration occurs in the moving process, the damping spring can be elastically deformed, at the moment, under the elastic action of the damping spring, the damping and buffering effects can be achieved, the situation that electric power components in the cabinet body are damaged due to overlarge vibration can be effectively reduced, and the service life is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

fig. 2 is a schematic diagram of an internal structure of an electric cabinet main body in an embodiment of the present application;

FIG. 3 is an enlarged perspective view of a T-shaped moving block in the embodiment of the present application;

FIG. 4 is an enlarged schematic perspective view of a linkage gear in an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of a rotating sleeve according to an embodiment of the present invention;

fig. 6 is an enlarged perspective view of the movable wheel in the embodiment of the present application.

In the figure: 1. a power cabinet main body; 2. a dust screen; 3. a vacuum cleaner; 4. a connecting hose; 5. a dust collection head; 6. a first motor; 7. a vertical screw; 8. vertically moving the block; 9. a second motor; 10. a horizontal screw; 11. t-shaped shifting blocks; 12. a dust sensor; 13. a synchronous pulley; 14. a synchronous belt; 15. a horizontal guide rod; 16. a vertical guide rail; 17. sealing the baffle plate; 18. a linkage rack; 19. a fixed shaft; 20. rotating the sleeve; 21. a linkage gear; 22. a torsion spring; 23. fixing the bump; 24. fixing the inserted rod; 25. fixing the jack; 26. a handle is controlled; 27. a return tension spring; 28. a hollow sleeve; 29. a telescopic sliding column; 30. a moving wheel; 31. a shock absorbing spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1-6, the dustproof electric power cabinet comprises an electric power cabinet main body 1, wherein the electric power cabinet main body 1 can be any metal electric power cabinet in the prior art; the side part of the electric power cabinet main body 1 is provided with a vent, a dustproof net 2 is arranged in the vent, and the dustproof net 2 can be fixedly arranged in a screw connection mode; a dust collector 3 is installed at the top of an electric cabinet main body 1, a connecting hose 4 is installed at an air suction inlet of the dust collector 3, a first motor 6 is installed on the inner wall of the bottom of the electric cabinet main body 1, two vertical screw rods 7 are symmetrically arranged in the electric cabinet main body 1, the bottom end of one vertical screw rod 7 is connected with the output end of the first motor 6, the bottom end of the other vertical screw rod 7 is rotatably installed on the inner wall of the bottom of the electric cabinet main body 1, vertical moving blocks 8 are sleeved on the two vertical screw rods 7 through threads, a second motor 9 is installed on the lateral part of one vertical moving block 8, the output end of the second motor 9 penetrates through the vertical moving block 8 and is installed with a horizontal screw rod 10, the end part of the horizontal screw rod 10 is rotatably installed on the lateral part of the other vertical moving block 8, a T-shaped moving block 11 is sleeved on the horizontal screw rod 10 through threads, a dust collection head 5 and a dust sensor 12 are installed on the lateral part of the T-shaped moving block 11, the end part of the connecting hose 4 extends into the electric power cabinet main body 1 and is connected with the dust collection head 5, the two vertical screw rods 7 are jointly provided with a synchronous transmission unit, the T-shaped moving block 11 is provided with a guide unit, and the electric power cabinet main body 1 is provided with a dustproof sealing mechanism for closing or opening the ventilation opening.

Borrow by above-mentioned structure, when starting first motor 6, under synchronous drive unit's effect, can make two vertical screw 7 synchronous rotations, and then the accessible moves vertical piece 8 and drives dust absorption head 5 and dust sensor 12 and reciprocate, when starting second motor 9, can move piece 11 through horizontal screw 10 and T shape and drive dust absorption head 5 and dust sensor 12 horizontal migration, thereby realized can be automatically to carrying out the purpose of comprehensive detection and all-round dust absorption in the electric power cabinet main part 1, effectively reduce the dust and pile up on electric power component and influence life's the condition to appear.

As a preferred embodiment of the present embodiment, the synchronous transmission unit includes two synchronous pulleys 13 respectively sleeved on the two vertical screws 7, and a synchronous belt 14 is jointly tensioned and sleeved on the two synchronous pulleys 13. The advantage of this setting is that when first motor 6 operates and drives one of vertical screw 7 to rotate, can drive another vertical screw 7 synchronous rotation through synchronous pulley 13 and synchronous belt 14, has realized the synchronous transmission function.

As a preferred embodiment of the present embodiment, the guiding unit comprises a horizontal guide rod 15 commonly installed on the mutually adjacent sides of the two vertical moving blocks 8, and the T-shaped moving block 11 is slidably sleeved on the horizontal guide rod 15. The arrangement has the advantages that the T-shaped moving block 11 can only slide horizontally along the horizontal guide rod 15 and cannot rotate along with the horizontal screw rod 10, limited guiding effect is achieved, and the stability in operation is good.

As a preferred embodiment of the present embodiment, the dustproof sealing mechanism includes a vertical guide rail 16 installed on a side portion of the electric power cabinet main body 1, two sealing baffles 17 matched with the ventilation opening are installed on the vertical guide rail 16 in a sliding manner, linkage racks 18 are installed on side portions of the two sealing baffles 17 through connecting brackets, a linkage assembly used for enabling the two linkage racks 18 to move synchronously in opposite directions or in opposite directions is installed on the electric power cabinet main body 1, the linkage assembly includes a fixed shaft 19 installed on the side portion of the electric power cabinet main body 1, a rotating sleeve 20 is rotatably sleeved on the fixed shaft 19, and it should be noted that the rotating sleeve 20 can only rotate without moving; the rotating sleeve 20 is sleeved with a linkage gear 21, the two linkage racks 18 are both meshed with the linkage gear 21, the rotating sleeve 20 is provided with a rotary unit, and the linkage gear 21 is provided with a fixing unit. The benefit that sets up like this is, when removing one of them sealed baffle 17, can drive another sealed baffle 17 through linkage rack 18 and linkage gear 21 and move in step in opposite directions or back of the body mutually, and then realized the purpose that can open or close the vent, when not using electric power cabinet main part 1, the accessible closes the vent and seals, further reduces the internal condition of external dust entering cabinet, and dustproof effect is better.

In this embodiment, the rotating unit includes a torsion spring 22 disposed in the rotating sleeve 20, the torsion spring 22 is sleeved on the fixed shaft 19, and two ends of the torsion spring 22 are respectively mounted on the outer side of the fixed shaft 19 and the inner wall of the rotating sleeve 20. The advantage that sets up like this is when unclamping sealed baffle 17, under the spring action of torsion spring 22, can make and rotate sleeve 20 and linkage gear 21 automatic reversal, and then can drive two sealed baffle 17 and remove in opposite directions and carry out self-closing vent, and can keep the encapsulated situation always, convenient laborsaving.

In this embodiment, the fixing unit includes a fixing protrusion 23 installed on an end of the fixing shaft 19, a control handle 26 is disposed on a side portion of the fixing protrusion 23, two fixing insertion rods 24 are symmetrically installed on a side portion of the control handle 26, a plurality of fixing insertion holes 25 are uniformly formed in a side portion of the linkage gear 21, end portions of the two fixing insertion rods 24 penetrate through the fixing protrusion 23 and extend into the two fixing insertion holes 25, and a reset unit is installed on the control handle 26. The benefit that sets up like this is, when removing control handle 26, can change the position relation between fixed inserted bar 24 and the fixed jack 25, and then can fix or loosen linkage gear 21 to can fix the position of seal baffle 17, the size of vent is adjusted in the convenience adaptation according to the actual operation condition of electric power cabinet main part 1, has improved application scope.

In this embodiment, the reset unit includes a reset tension spring 27 sleeved on the fixed inserted rod 24, and two ends of the reset tension spring 27 are respectively installed on the side portions of the fixed protrusion 23 and the control handle 26. The advantage of this arrangement is that when the operation handle 26 is released, the fixing insertion rod 24 is automatically reset and inserted into the fixing insertion hole 25 by the elastic force of the reset tension spring 27, so as to fix the linkage gear 21, and the fixing state can be always maintained, stable and firm.

As a preferred embodiment of this embodiment, four hollow sleeves 28 are uniformly installed at the bottom of the electric power cabinet main body 1, telescopic sliding columns 29 are slidably sleeved in the four hollow sleeves 28, moving wheels 30 are installed at the bottom ends of the four telescopic sliding columns 29, damping units are installed on the four moving wheels 30, each damping unit comprises a damping spring 31 sleeved on the telescopic sliding column 29, and two ends of the damping spring 31 are respectively attached to the bottom ends of the hollow sleeves 28 and the top portions of the moving wheels 30. The benefit that sets up like this is when promoting the cabinet body and remove the in-process and take place vibrations, can make damping spring 31 take place elastic deformation, at this moment, under damping spring 31's elastic force effect, can play the shock attenuation cushioning effect, has greatly reduced the vibration range of the cabinet body, can effectively reduce because of vibrations too big lead to the impaired condition of the internal electric power part of cabinet, has improved life.

The working principle of the invention is as follows:

when starting first motor 6, under synchronous pulley 13 and synchronous belt 14's effect, can make two vertical screw 7 synchronous rotations, and then the accessible moves vertical piece 8 and drives dust absorption head 5 and dust sensor 12 and reciprocate, when starting second motor 9, can move piece 11 through horizontal screw 10 and T shape and drive dust absorption head 5 and dust sensor 12 horizontal migration, thereby realized can be automatically to carrying out the purpose of comprehensive detection and all-round dust absorption in the electric power cabinet main part 1, effectively reduce the dust and pile up on electric power component and influence life's the condition to appear.

When handle 26 is controlled in the pulling, can make fixed inserted bar 24 shift out outside fixed jack 25, loosen linkage gear 21, portable one of them sealing baffle 17 this moment, and then can drive another sealing baffle 17 through linkage rack 18 and linkage gear 21 and move in opposite directions or back of the body mutually in step, thereby realized opening or the purpose of closing the vent, when not using electric power cabinet main part 1, the accessible is closed the vent and is sealed, further reduce the internal condition of external dust entering cabinet, dustproof effect is better.

When loosening control handle 26, under the spring action of extension spring 27 that resets, can make fixed inserted bar 24 automatic re-setting insert fixed jack 25 in, it is fixed with linkage gear 21 to can fix the position of seal baffle 17, the size of vent is adjusted to the convenience according to the actual motion condition adaptation of electric power cabinet main part 1, has improved application scope.

When the sealing baffle 17 is loosened, under the elastic force action of the torsion spring 22, the rotating sleeve 20 and the linkage gear 21 can automatically rotate reversely, so that the two sealing baffles 17 can be driven to move oppositely to automatically close the ventilation opening, the sealing state can be kept all the time, and the sealing baffle is convenient and labor-saving.

Through the setting that removes wheel 30, the staff of can being convenient for promotes the cabinet body and removes, when removing in-process and taking place vibrations, can make damping spring 31 take place elastic deformation, at this moment, under damping spring 31's elastic force effect, can play the shock attenuation cushioning effect, greatly reduced the vibration range of the cabinet body, can effectively reduce because of vibrations too big lead to the impaired condition of the internal electric power part of cabinet, improved life.

Finally, it should be noted that: although the present invention 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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an electric power cabinet that prevents dust, includes electric power cabinet main part (1), the vent, its characterized in that have been seted up to the lateral part of electric power cabinet main part (1): the dust screen (2) is installed in the ventilation opening, the dust collector (3) is installed at the top of the electric power cabinet main body (1), a connecting hose (4) is installed at an exhaust inlet of the dust collector (3), a first motor (6) is installed on the inner wall of the bottom of the electric power cabinet main body (1), two vertical screw rods (7) are symmetrically arranged in the electric power cabinet main body (1), the bottom end of one of the vertical screw rods (7) is connected with the output end of the first motor (6), the bottom end of the other vertical screw rod (7) is rotatably installed on the inner wall of the bottom of the electric power cabinet main body (1), a vertical moving block (8) is sleeved on each of the two vertical screw rods (7) in a threaded manner, a second motor (9) is installed on the side portion of one vertical moving block (8), the output end of the second motor (9) penetrates through the vertical moving block (8) and is provided with a horizontal screw rod (10), the tip of horizontal screw rod (10) is rotated and is installed another on the lateral part of vertical removal piece (8), the screw thread has cup jointed T shape on horizontal screw rod (10) and has moved piece (11), the lateral part that the T shape moved piece (11) is installed dust absorption head (5) and dust sensor (12), the tip of coupling hose (4) extends to in electric power cabinet main part (1) and with dust absorption head (5) are connected, two install the synchronous transmission unit jointly on vertical screw rod (7), install the direction unit on the T shape moves piece (11), install on electric power cabinet main part (1) and be used for closing or opening the dustproof sealing mechanism of vent.

2. The dustproof electric power cabinet of claim 1, characterized in that: the synchronous transmission unit comprises two synchronous belt wheels (13) which are respectively installed on the two vertical screw rods (7) in a sleeved mode, and synchronous belts (14) are jointly tensioned and sleeved on the two synchronous belt wheels (13).

3. The dustproof electric power cabinet of claim 1, characterized in that: the guide unit comprises horizontal guide rods (15) which are arranged on the two mutually close side portions of the vertical moving blocks (8) together, and the T-shaped moving block (11) is sleeved on the horizontal guide rods (15) in a sliding mode.

4. The dustproof electric power cabinet of claim 1, characterized in that: dustproof sealing mechanism is including installing vertical guide rail (16) on electric power cabinet main part (1) lateral part, slidable mounting have on vertical guide rail (16) two with vent assorted sealing baffle (17), two linkage rack (18) are all installed through the linking bridge to the lateral part of sealing baffle (17), install on electric power cabinet main part (1) and be used for making two linkage rack (18) are synchronous in opposite directions or the linkage subassembly that moves mutually back on the back.

5. The dustproof electric power cabinet of claim 4, wherein: the linkage assembly comprises a fixed shaft (19) arranged on the side portion of the electric power cabinet main body (1), a rotating sleeve (20) is sleeved on the fixed shaft (19), a linkage gear (21) is installed on the rotating sleeve (20) in a sleeved mode, the linkage gear (18) is meshed with the linkage gear (21), a rotary unit is installed on the rotating sleeve (20), and a fixing unit is installed on the linkage gear (21).

6. The dustproof electric power cabinet of claim 5, which is characterized in that: the rotary unit comprises a torsion spring (22) arranged in the rotary sleeve (20), the torsion spring (22) is sleeved on the fixed shaft (19), and two ends of the torsion spring (22) are respectively arranged on the outer side of the fixed shaft (19) and the inner wall of the rotary sleeve (20).

7. The dustproof electric power cabinet of claim 5, wherein: the fixed unit is including installing fixed lug (23) on fixed axle (19) tip, the lateral part of fixed lug (23) is provided with controls handle (26), two fixed inserted bar (24) are installed to the lateral part symmetry of controlling handle (26), a plurality of fixed jack (25) have evenly been seted up to the lateral part of linkage gear (21), two the tip of fixed inserted bar (24) all runs through fixed lug (23) and extend to wherein two in fixed jack (25), control and install the reset unit on handle (26).

8. The dustproof electric power cabinet of claim 7, which is characterized in that: the reset unit comprises a reset tension spring (27) which is sleeved on the fixed insertion rod (24), and two ends of the reset tension spring (27) are respectively installed on the fixed protruding block (23) and the side portion of the control handle (26).

9. The dustproof electric power cabinet of claim 1, characterized in that: four hollow sleeves (28) are evenly installed, four in the bottom of electric power cabinet main part (1) all slide in hollow sleeve (28) and cup jointed flexible traveller (29), four the bottom of flexible traveller (29) all is installed and is removed wheel (30), four all install the shock attenuation unit on removing wheel (30).

10. The dustproof electric power cabinet of claim 9, wherein: the damping unit is established including the cover damping spring (31) on flexible traveller (29), damping spring (31) both ends respectively with the bottom of hollow sleeve (28) with the top of removing wheel (30) is laminated mutually.