Power cabinet with dust removal mechanism

Abstract

The invention belongs to the technical field of electric power cabinets, particularly relates to an electric power cabinet with a dust removal mechanism, and aims to solve the problem that dust is easy to generate at a wiring port in the prior art, and provides the following scheme: the electric power cabinet comprises a cabinet body of which the front surface is reserved with an opening and the whole is of a cuboid box body structure; a first mounting plate and a three-dimensional fixing frame which are parallel to each other are fixed to the inner wall, close to the top end, of the back face of the cabinet body, a main switch used for connecting incoming lines is fixed to one end of the first mounting plate, and electric appliance wiring original parts distributed at equal intervals are fixed to the front face of the three-dimensional fixing frame. The top wiring port of the electric appliance wiring element and the outlet end of the main switch are connected with a connecting wire, and the vertical surface of one side, far away from the main switch, of the cabinet body is provided with a vent hole. After the device is used for a period of time, when dust removal needs to be carried out on a wiring end, only a power source of the air injection mechanism needs to be started, at the moment, high-speed air flow can be intermittently injected to an interface above an electric appliance wiring element, and then dust is blown away.

Description

Technical Field

[0001] The invention relates to the technical field of power cabinets, and in particular to a power cabinet with a dust removal mechanism. Background Art

[0002] The power cabinet is a combination of switchgear, measuring instruments, protective electrical appliances and auxiliary equipment assembled in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. Its layout should meet the requirements of normal operation of the power system, be easy to maintain, and not endanger the safety of people and surrounding equipment. During normal operation, the circuit can be connected or disconnected with the help of manual or automatic switches. In case of faults or abnormal operation, the circuit can be cut off or alarmed with the help of protective electrical appliances. Various parameters in operation can be displayed with the help of measuring instruments, and certain electrical parameters can also be adjusted. The power cabinet is an important facility in the power system. Its safe operation is related to the normal operation of all related equipment. Therefore, its protection and inspection are also highly valued.

[0003] The dust removal mechanisms attached to existing power cabinets are mostly used to clean the dust stuck on the nets at the air inlets and outlets, thereby ensuring smooth ventilation. The ultimate goal is to ensure heat dissipation. In actual operation, dust also accumulates at some wiring ports. If they are not cleaned for a long time, once too much dust accumulates, coupled with its fluffy state, it is easy to absorb moisture from the air, and finally it is very easy to cause a short circuit in adjacent wires. Therefore, we propose a new power cabinet that can remove dust from the wiring ports. Summary of the invention

[0004] In view of the fact that dust is easily generated at the wiring port, there is no problem in the prior art:

[0005] The present invention proposes an electric power cabinet with a dust removal mechanism, comprising a cabinet body with an opening reserved on the front and having an overall rectangular box structure, a mounting plate 1 and a three-dimensional fixing frame parallel to each other are fixed to the inner wall of the back of the cabinet body near the top, and a main switch for connecting incoming lines is fixed to one end of the mounting plate 1, and electrical wiring components distributed at equal distances are fixed to the front of the three-dimensional fixing frame, and connecting wires are connected to the top wiring ports of the electrical wiring components and the outlet end of the main switch, and a vent is opened on the vertical surface of the cabinet body away from the main switch; a dustproof net is attached to the vent to dissipate heat and block external dust, and an air jet mechanism is arranged on the back of the cabinet body above the electrical wiring components, and the air jet mechanism includes A mounting base fixed on a mounting plate, a front side of the mounting base being clamped with a piston air cylinder with an opening upwardly in a cylindrical structure, two air outlet pipes being reserved at the bottom end of the piston air cylinder, and a one-way air outlet valve and a one-way air inlet valve are respectively provided at the bottom ends of the two air outlet pipes; an air jet pipe is fixed on the back side of the cabinet above the three-dimensional fixing frame, and an air gap facing the electrical wiring components is reserved on the surface of the air jet pipe; a connecting hose is connected between one end of the air jet pipe and the one-way air outlet valve; an air inlet end of the one-way air inlet valve is connected with an exhaust pipe, and an end of the exhaust pipe away from the piston air cylinder is connected with a suction hood that can move left and right, the suction hood being in a trumpet-shaped structure as a whole, and a sponge block is clamped at the opening of the suction hood.

[0006] A further configuration of the present invention is that a line inlet is reserved at the top of the cabinet, and the line inlet is located on a side close to the main switch; a plurality of equally spaced line outlets are reserved at the bottom of the cabinet; and an air outlet is opened on the back of the cabinet near the bottom; mounting ears are welded at two corners of the back inner wall of the cabinet near the top, and bolt holes are reserved in the middle of the mounting ears; by setting the line inlet close to the main switch, it can be more convenient when wiring.

[0007] A further configuration of the present invention is that horizontally arranged adjustment slide bars are fixed on the left and right sides of the cabinet near the top of the electrical wiring components, and two wear-resistant slip rings are fixed on the sides of the suction hood near the top, and the wear-resistant slip rings are provided with through holes matching the diameter of the adjustment slide bars; through the arranged adjustment slide bars and the hanging ears with through holes, the position of the suction hood can be adjusted according to actual wiring requirements.

[0008] A further configuration of the present invention is that a transverse strip hole is reserved on the outer wall of the suction hood, and a counterweight magnet is arranged on the side of the surface of the suction hood close to the lifting ear; through the arranged counterweight magnet, the height of the counterweight magnet can be adjusted as needed and then the elevation angle of the suction hood can be adjusted to suck the dust-containing air in the best direction.

[0009] A further arrangement of the present invention is that the jet mechanism also includes a fixed plate seat fixed to the top of the piston gas barrel, a sliding bearing is embedded in the middle of the fixed plate seat, a rack push rod is slidably connected in the middle of the sliding bearing, a piston plate is fixed to the bottom end of the rack push rod, and a tension spring is fixed to the lower surface of the piston plate, a pad is fixed to the bottom end of the tension spring, and the pad is fixed in the middle of the bottom of the piston gas barrel, a reduction motor is fixed to the upper surface of the fixed plate seat by bolts, and a half gear is fixed to the top of the output shaft of the reduction motor, and the half gear and the rack push rod are meshed with each other.

[0010] A further configuration of the present invention is that a cooling fan is fixed by bolts at the edge of the fixed mounting ring inside the cabinet, and the area of ​​the cooling fan is smaller than the total area of ​​the vents; a pin is fixed to the top end of the output shaft of the reduction motor through the half gear, and a through hole coaxial with the pin is opened on the side of the cabinet, and the aperture of the through hole is larger than the diameter of the pin; through the set through hole, when in use, when the power supply for controlling the reduction motor is cut off, a square tube can be extended into the interior through the through hole and sleeved on the pin to drive the half gear to rotate temporarily.

[0011] A further configuration of the present invention is that a backup power supply box is fixed on the surface of the mounting plate, and a backup power supply, a processor and a temperature smoke sensor are arranged inside the backup power supply box; a plurality of air holes are opened on the surface of the backup power supply box to sense the internal temperature and whether there is a fire. Once a fire occurs, the smoke sensor transmits a signal to the processor so that the processor controls the backup power supply to start emergency treatment measures.

[0012] A further configuration of the present invention is that a bagged fire extinguishing agent package is placed near the edge of the bottom of the piston gas barrel, and a fixing platform and an electrically controlled positioning pin are fixed to the side of the piston gas barrel located outside the fire extinguishing agent package, a needle is fixed to the pin end of the electrically controlled positioning pin, and coaxially distributed sliding holes are opened on the fixing platform and the piston gas barrel; the control switch of the electrically controlled positioning pin is connected to the signal output end of the processor through a signal line.

[0013] A further configuration of the present invention is that a sealing gasket is embedded in the inner wall of the circumference of the sliding hole on the fixing table, and the inner wall of the sealing gasket forms a transition fit with the outer wall of the needle, thereby ensuring the sealing effect of the piston cylinder during normal jetting.

[0014] A further configuration of the present invention is that claws are reserved at the four corners of the inner wall of the suction hood near the bottom, and the sponge block is located above the claws. The arrangement of the claws makes the sponge block more convenient to replace.

[0015] The beneficial effects of the present invention are:

[0016] 1. By setting up the piston air barrel and the jet pipe toward the electrical wiring components, when the wiring terminals need to be dusted after the device has been used for a period of time, it is only necessary to turn on the power source of the jet mechanism. At this time, high-speed airflow can be intermittently sprayed on the interface above the electrical wiring components to blow away the dust. At the same time, the suction hood with a sponge block can quickly extract the dusty air to prevent the dusty air from falling on the electrical wiring components again.

[0017] 2. Through the combination of the half gear and the tension spring, the piston plate can be driven to rise slowly first. After rising to a certain height, the half gear is disengaged, and the piston plate quickly drops to form a rapid squeezing of the airflow, and then a high-speed airflow is ejected from the jet pipe to effectively clean the attached dust.

[0018] 3. By setting up the electric control positioning pin with a needle and the fire extinguishing agent bag, once the processor sends out a fire signal, the needle quickly punctures the fire extinguishing agent bag, and then accompanied by the rapid inflation of the piston gas cylinder, the dispersed fire extinguishing agent can be quickly sprayed into the interior of the power cabinet, thereby realizing fast and effective fire extinguishing from the inside, without the need for manpower to open the cabinet door, reducing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the internal structure of a cabinet in a power cabinet with a dust removal mechanism proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of a power cabinet with a dust removal mechanism proposed by the present invention;

[0021] Figure 3 This is a front view of a power cabinet with a dust removal mechanism proposed by the present invention;

[0022] Figure 4 A schematic diagram of the main structure of an air jet mechanism of a power cabinet with a dust removal mechanism proposed by the present invention;

[0023] Figure 5 A schematic cross-sectional view of a power cabinet with a dust removal mechanism proposed by the present invention;

[0024] Figure 6 A partial cross-sectional view of an air jet mechanism in a power cabinet with a dust removal mechanism proposed by the present invention;

[0025] Figure 7 A schematic diagram of the explosion structure of a puncture mechanism in a power cabinet with a dust removal mechanism proposed by the present invention.

[0026] In the figure: 1. cabinet; 2. mounting plate 1; 3. line inlet; 4. mounting ear; 5. vent; 6. fixed mounting ring; 7. three-dimensional fixing frame; 8. electrical wiring original parts; 9. adjusting slide bar; 10. one-way air outlet valve; 11. piston gas barrel; 12. cooling fan; 13. half gear; 14. rack push rod; 15. reduction motor; 16. standby power supply box; 17. suction hood; 18. electric control positioning pin; 19. wear-resistant slip ring; 20. fixing plate seat; 21. mounting seat; 22. jet pipe; 23. air gap; 24. fixing table; 25. exhaust pipe; 26. strip hole; 27. sponge block; 28. sliding bearing; 29. ​​piston plate; 30. tension spring; 31. cushion block; 32. fire extinguishing agent bag; 33. sealing gasket. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In this embodiment

[0029] Reference Figure 1-7, an electric power cabinet with a dust removal mechanism, comprising a cabinet 1 with an opening reserved on the front and a rectangular box structure as a whole, a mounting plate 2 and a three-dimensional fixing frame 7 are fixed to the inner wall of the back of the cabinet 1 near the top, and a main switch for connecting the incoming line is fixed to one end of the mounting plate 2, and an electrical wiring element 8 distributed at equal distances is fixed to the front of the three-dimensional fixing frame 7, and a connecting wire is connected to the top wiring port of the electrical wiring element 8 and the outlet end of the main switch, and a vent 5 is opened on the vertical surface of the cabinet 1 away from the main switch; a dustproof net is attached to the vent 5, which can be used for heat dissipation and blocking external dust, and an injection mechanism is arranged on the back of the cabinet 1 above the electrical wiring element 8, and the injection mechanism includes a mounting seat 21 fixed on the mounting plate 2, and a piston gas cylinder 11 with an opening upward and a cylindrical structure is clamped on the front of the mounting seat 21, and two air outlet pipes are reserved at the bottom end of the piston gas cylinder 11, and a one-way air outlet valve 10 and a one-way air inlet valve are respectively arranged at the bottom ends of the two air outlet pipes; the cabinet 1 The back of the three-dimensional fixing frame 7 is fixed with an air jet pipe 22, and the surface of the air jet pipe 22 is reserved with an air gap 23 facing the electrical wiring component 8; one end of the air jet pipe 22 is connected to the one-way air outlet valve 10 with a connecting hose; the air inlet end of the one-way air inlet valve is connected with an exhaust pipe 25, and the end of the exhaust pipe 25 away from the piston gas cylinder 11 is connected with a suction hood 17 that can move left and right, the suction hood 17 is a trumpet-shaped structure as a whole, and a sponge block 27 is clamped at the opening of the suction hood 17; by providing the piston gas cylinder 11 and the air jet pipe 22 facing the electrical wiring component 8, when the device needs to be used for a period of time, when the wiring terminal needs to be dusted, it is only necessary to turn on the power source of the air jet mechanism, and at this time, high-speed airflow can be intermittently sprayed on the interface above the electrical wiring component 8, and then the dust is blown away. At the same time, the suction hood 17 with the sponge block 27 can quickly extract the air with dust to prevent the air with dust from falling on the electrical wiring component 8 again.

[0030] In the present invention, a line inlet 3 is reserved at the top of the cabinet 1, and the line inlet 3 is located on the side close to the main switch; a plurality of equally spaced line outlet holes are reserved at the bottom of the cabinet 1; and an air outlet is opened on the back of the cabinet 1 near the bottom; mounting ears 4 are welded at the two corners of the inner wall on the back of the cabinet 1 near the top, and bolt holes are reserved in the middle of the mounting ears 4; by setting the line inlet 3 close to the main switch, it can be more convenient when wiring.

[0031] Please refer to Figure 2-3 , horizontally arranged adjusting slide bars 9 are fixed on the left and right sides of the cabinet 1 near the top of the electrical wiring original parts 8, and two wear-resistant slip rings 19 are fixed on the sides of the suction hood 17 near the top, and the wear-resistant slip rings 19 are provided with perforations that match the diameter of the adjusting slide bars 9; through the arranged adjusting slide bars 9 and the hanging ears with perforations, the position of the suction hood 17 can be adjusted according to actual wiring requirements.

[0032] In the present invention, a transverse strip hole 26 is reserved on the outer wall of the suction hood 17, and a counterweight magnet is provided on the side of the surface of the suction hood 17 close to the lifting ear; through the provided counterweight magnet, the height of the counterweight magnet can be adjusted as needed and then the elevation angle of the suction hood 17 can be adjusted to suck the dust-containing air in the best direction.

[0033] Please refer to Figure 2-4 and Figure 5 The jet mechanism also includes a fixed plate seat 20 fixed to the top of the piston cylinder 11, a sliding bearing 28 is embedded in the middle of the fixed plate seat 20, a rack push rod 14 is slidably connected in the middle of the sliding bearing 28, a piston plate 29 is fixed to the bottom end of the rack push rod 14, and a tension spring 30 is fixed to the lower surface of the piston plate 29, a cushion block 31 is fixed to the bottom end of the tension spring 30, and the cushion block 31 is fixed to the middle of the bottom of the piston cylinder 11, a reduction motor 15 is fixed to the upper surface of the fixed plate seat 20 by bolts, and a half gear 13 is fixed to the top of the output shaft of the reduction motor 15, and the half gear 13 is meshed with the rack push rod 14. By the combination of the half gear 13 and the tension spring 30, the piston plate 29 can be driven to rise slowly first, and after the half gear 13 is disengaged after rising to a certain height, the piston plate 29 quickly drops to form a rapid extrusion of the airflow, and then it is ejected from the jet pipe 22.

[0034] Please refer to Figure 2 A cooling fan 12 is fixed by bolts at the edge of the fixed mounting ring 6 inside the cabinet 1, and the area of ​​the cooling fan 12 is smaller than the total area of ​​the vent 5; a pin is fixed on the top of the output shaft of the reduction motor 15 through the half gear 13, and a through hole coaxial with the pin is opened on the side of the cabinet 1, and the aperture of the through hole is larger than the diameter of the pin; through the set through hole, when the power supply for controlling the reduction motor 15 is cut off, a square tube can be extended into the interior through the through hole and sleeved on the pin to drive the half gear 13 to rotate temporarily.

[0035] Please refer to Figure 3 and Figure 5 A backup power box 16 is also fixed on the surface of the mounting plate 2, and a backup power supply, a processor and a temperature smoke sensor are arranged inside the backup power box 16; a plurality of air holes are opened on the surface of the backup power box 16; these are used to sense the internal temperature and whether there is a fire. Once a fire occurs, the smoke sensor transmits a signal to the processor so that the processor can control the backup power supply to start emergency treatment measures.

[0036] Please refer to Figure 6-7A bagged fire extinguishing agent bag 32 is placed at the bottom of the piston gas cylinder 11 near the edge, and a fixing platform 24 and an electric control positioning pin 18 are fixed on the side of the piston gas cylinder 11 outside the fire extinguishing agent bag 32, a needle is fixed to the pin end of the electric control positioning pin 18, and coaxially distributed sliding holes are opened on the fixing platform 24 and the piston gas cylinder 11; the control switch of the electric control positioning pin 18 is connected to the signal output end of the processor through a signal line; through the electric control positioning pin 18 with a needle and the fire extinguishing agent bag 32, once the processor sends a fire signal, the needle quickly punctures the fire extinguishing agent bag 32, and then accompanied by the rapid inflation of the piston gas cylinder 11, the dispersed fire extinguishing agent can be quickly sprayed into the interior of the power cabinet, thereby realizing rapid and effective fire extinguishing from the inside, without the need to open the cabinet door manually, reducing losses.

[0037] Please refer to Figure 7 A sealing gasket 33 is embedded in the inner wall of the sliding hole on the fixed platform 24, and the inner wall of the sealing gasket 33 forms a transition fit with the outer wall of the needle, ensuring the sealing effect of the piston cylinder 11 during normal jetting.

[0038] In the present invention, claws are reserved at the four corners of the inner wall of the suction hood 17 near the bottom, and the sponge block 27 is located above the claws. The arrangement of the claws makes it more convenient to replace the sponge block 27.

[0039] When the device is in use, when it is necessary to remove dust from the wiring terminals inside the cabinet 1, it is only necessary to turn on the power source of the jet mechanism, which can be turned on manually or by a remote control, that is, turn on the power supply of the reduction motor 15; at this time, with the cooperation of the half gear 13 and the rack push rod 14, the piston gas cylinder 11 can be allowed to operate normally, and the high-speed airflow and suction action can be intermittently sprayed on the interface above the electrical wiring original 8; then the dust is blown away during the spraying, and at the same time, the suction hood 17 with the sponge block 27 can quickly remove the air with dust to prevent the air with dust from falling on the electrical wiring original 8 again; the electronic control positioning pin 18 and the fire extinguishing agent bag 32 with a needle are provided. Once the processor sends a fire signal, the electronic control positioning pin 18 is controlled to be energized. At this time, the pin shaft of the electronic control positioning pin 18 drives the needle to quickly pierce the fire extinguishing agent bag 32, and then accompanied by the rapid inflation of the piston gas cylinder 11, the dispersed fire extinguishing agent can be quickly sprayed into the interior of the power cabinet, thereby realizing rapid and effective fire extinguishing from the inside without the need for manpower to open the cabinet door.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric power cabinet with a dust removal mechanism, comprising a cabinet body (1) with an opening reserved on the front and having an overall rectangular box structure, wherein a mounting plate (2) and a three-dimensional fixing frame (7) parallel to each other are fixed to the inner wall of the back of the cabinet body (1) near the top, and a main switch for connecting an incoming line is fixed to one end of the mounting plate (2), and electrical wiring components (8) distributed at equal distances are fixed to the front of the three-dimensional fixing frame (7), and a connecting wire is connected to the top wiring port of the electrical wiring component (8) and the outlet end of the main switch, characterized in that: A vent (5) is provided on a vertical surface of a side of the cabinet (1) away from the main switch; a dustproof net is attached to the vent (5) to dissipate heat and block external dust; an air jet mechanism is provided on the back of the cabinet (1) above the electrical wiring element (8), and the air jet mechanism comprises a mounting seat (21) fixed on a mounting plate (2); a piston gas cylinder (11) with an upwardly opening cylindrical structure is clamped on the front of the mounting seat (21); two air outlet pipes are reserved at the bottom end of the piston gas cylinder (11), and a one-way air outlet valve (10) and a one-way air inlet valve are respectively provided at the bottom ends of the two air outlet pipes The back of the cabinet (1) is located above the three-dimensional fixing frame (7) and is fixed with an air jet pipe (22), and the surface of the air jet pipe (22) is reserved with an air gap (23) facing the electrical wiring component (8); a connecting hose is connected between one end of the air jet pipe (22) and the one-way air outlet valve (10); the air inlet end of the one-way air inlet valve is connected with an exhaust pipe (25), and the end of the exhaust pipe (25) away from the piston air cylinder (11) is connected with a suction hood (17) that can move left and right, the suction hood (17) is in the shape of a trumpet as a whole, and a sponge block (27) is clamped at the opening of the suction hood (17).

2. The power cabinet with dust removal mechanism according to claim 1, characterized in that: The top of the cabinet (1) is reserved with a wire inlet (3), and the wire inlet (3) is located on a side close to the main switch; the bottom of the cabinet (1) is reserved with a plurality of wire outlet holes distributed at equal distances; and the back of the cabinet (1) is provided with an air outlet near the bottom; Mounting ears (4) are welded at two corners of the inner wall of the back side of the cabinet (1) near the top, and bolt through holes are reserved in the middle of the mounting ears (4).

3. The power cabinet with dust removal mechanism according to claim 1, characterized in that: Horizontally arranged adjustment slide bars (9) are fixed on the left and right sides of the cabinet (1) near the upper side of the electrical wiring element (8), and two wear-resistant slip rings (19) are fixed on the side of the suction hood (17) near the top, and the wear-resistant slip rings (19) are provided with through holes matching the diameter of the adjustment slide bars (9).

4. The power cabinet with dust removal mechanism according to claim 3, characterized in that: The outer wall of the suction hood (17) is reserved with a transverse strip hole (26), and a counterweight magnet is arranged on the side of the surface of the suction hood (17) close to the lifting ear.

5. The power cabinet with dust removal mechanism according to claim 1, characterized in that: The jet mechanism also includes a fixed plate seat (20) fixed on the top of the piston cylinder (11), a sliding bearing (28) is embedded in the middle of the fixed plate seat (20), a rack push rod (14) is slidably connected in the middle of the sliding bearing (28), a piston plate (29) is fixed to the bottom end of the rack push rod (14), and a tension spring (30) is fixed to the lower surface of the piston plate (29), a cushion block (31) is fixed to the bottom end of the tension spring (30), and the cushion block (31) is fixed to the middle of the bottom of the piston cylinder (11), and a reduction motor (15) is fixed to the upper surface of the fixed plate seat (20) by bolts, and a half gear (13) is fixed to the top of the output shaft of the reduction motor (15), and the half gear (13) and the rack push rod (14) are meshed with each other.

6. The power cabinet with dust removal mechanism according to claim 5, characterized in that: A cooling fan (12) is fixed by bolts at the edge of the fixed mounting ring (6) inside the cabinet (1), and the area of ​​the cooling fan (12) is smaller than the total area of ​​the vent holes (5); a pin is fixed to the top end of the output shaft of the reduction motor (15) through the half gear (13), and a through hole coaxial with the pin is opened on the side of the cabinet (1), and the aperture of the through hole is larger than the diameter of the pin.

7. The power cabinet with dust removal mechanism according to claim 6, characterized in that: A backup power supply box (16) is also fixed on the surface of the mounting plate 1 (2), and a backup power supply, a processor and a temperature smoke sensor are arranged inside the backup power supply box (16); a plurality of air holes are opened on the surface of the backup power supply box (16).

8. The power cabinet with dust removal mechanism according to claim 7, characterized in that: A bagged fire extinguishing agent package (32) is placed near the edge of the bottom of the piston gas barrel (11), and a fixing platform (24) and an electric control positioning pin (18) are fixed on the side of the piston gas barrel (11) outside the fire extinguishing agent package (32), a needle head is fixed to the pin end of the electric control positioning pin (18), and coaxially distributed sliding holes are opened on the fixing platform (24) and the piston gas barrel (11); and a control switch of the electric control positioning pin (18) is connected to a signal output end of a processor via a signal line.

9. The power cabinet with dust removal mechanism according to claim 8, characterized in that: A sealing gasket (33) is embedded in the inner wall of the sliding hole on the fixing platform (24), and the inner wall of the sealing gasket (33) forms a transition fit with the outer wall of the needle.

10. The power cabinet with dust removal mechanism according to claim 1, characterized in that: The inner wall of the suction hood (17) is provided with claws at four corners near the bottom, and the sponge block (27) is located above the claws.

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