32results about How to "Effectively blow off" patented technology

The invention discloses wire and cable processing equipment. The surface of a bottom plate is fixedly connected with a cooling frame, a dust removal box, a power assisting wheel, a first fixing frame,a second fixing frame and a motor fixing frame from left to right. The top of the first fixing frame is fixedly connected with a telescopic air cylinder through a supporting frame; the bottom end ofa piston rod of the telescopic air cylinder penetrates through the top of the first fixing frame and extends to an inner cavity of the first fixing frame; and the inner cavity of the first fixing frame is movably connected with the surface of the piston rod of the telescopic air cylinder. The invention relates to the technical field of cable processing. According to the wire and cable processing equipment, all the structures are matched to carry out cooling, dust removal, cutting and take-up operation on the processed and formed cable in sequence; a plurality of processing flows are integratedand synchronously carried out, so that the processing efficiency is higher, and time required for transportation in each processing procedure is effectively saved; and the wire and cable processing equipment is suitable for processing of large-batch cables, and the processing speed of the processing equipment is increased.

The invention discloses an electromagnetic wire drying device which comprises a fan, an air inlet pipe, a blowing mechanism and a support. The electromagnetic wire drying device is characterized in that the blowing mechanism comprises a shell, a partition is arranged in the shell, the shell is divided into an air outlet cavity positioned at the center and an air inlet cavity positioned outside the center by the partition, the air inlet pipe is communicated with the air inlet cavity, the front center and the rear center of the air outlet cavity are respectively provided with a through hole, electromagnetic wires pass through the through holes, at least one slit-shaped air hole is arranged on the partition or between the partition and the shell, the air holes are opposite to the movement direction of the electromagnetic wires, and an acute angle is formed between each air hole and the corresponding electromagnetic wire. The electromagnetic wire drying device solves the problems that an existing copper wire drying device is provided with overlarge blow holes, air speed cannot be effectively increased, and further blowing effects are affected. The electromagnetic wire drying device has the advantages of reasonable structure and fine drying effects.

The invention discloses a gas-solid separation device with a backblow system. The device comprises a device body provided with a treatment space inside, a crude gas inlet arranged on one side of the device body, a gas outlet arranged on the other side of the device body, a clapboard which is arranged in the treatment space and partitions the treatment space into a filtration chamber and an air-purifying chamber, at least one filter element which extends into the filtration chamber from the partition and is in gas communication with the filtration chamber and the air-purifying chamber, and the backblow system which is arranged in the air-purifying chamber and comprises at least one backblow port, wherein the crude gas inlet is communicated with the filtration chamber, the gas outlet is communicated with the air-purifying chamber, and the at least one backblow port is correspondingly arranged on the top of the filter element. The device adopts the backblow system to effectively blow off solid particles adhered to the filter element to avoid the phenomenon that the solid particles block the filter element, thereby ensuring the steady operation of the device.

The invention relates to the field of transportation and specifically discloses a freight container. An air collection cavity is arranged in a front board of the container; a telescopic board is arranged in the container; one end of the telescopic board is hinged to a bottom board at the rear part of the container and the other end of the telescopic board is capable of sliding vertically at the front board; the two sides of the telescopic board respectively abut against a left side board and a right side board; a return spring is arranged under the telescopic board; a compression cavity is formed under the telescopic board; the compression cavity communicates with the air collection cavity; the telescopic board comprises a first board and a second board which are connected to each other ina sliding manner; an inner cavity is arranged in the first board; a piston fixed to the end of the second board is arranged in the inner cavity; an air flow passage which communicates with the innercavity is arranged in the second board; a pressing valve for communicating the air collection cavity with the air flow passage is arranged at the bottom of the front board; the left side board and theright side board are provided with air outlets; the left side board and the right side board are provided with slideways communicating the air collection cavity with the air outlets; and blocking-upblocks for isolating the air collection cavity from the air outlets when the container is in a horizontal state are arranged in the slideways. The freight container facilitates the removal of residualmaterials.

A jigsaw having a housing 4,6 and a support shoe 38 pivotable relative to the housing is disclosed. A bridge member 42 is mounted to the support shoe 38 and is connected to a connector piece 44 to define a conduit for transporting air from a duct in the housing, connected to a fan for cooling a motor in the housing, to a location at which a jigsaw blade of the jigsaw cuts through a workpiece. Actuation of a trigger 10 on the housing supplies power to a motor in the housing, which causes reciprocating motion of the jigsaw blade, and causes the fan in the housing to expel air through bridge member 42. Air is directed from bridge member 42 onto the jigsaw blade in a direction transverse to a line of cutting action of the jigsaw. This enables 10 the outlet of bridge member 42 to be located very close to the jigsaw blade without obscuring the user's view of the blade, and blows dust away from the line to be cut by the jigsaw 2.

The invention discloses an environment-friendly construction waste ship loader capable of conveniently removing returned materials, and belongs to the field of ship loaders. The environment-friendly construction waste ship loader capable of conveniently removing the returned materials comprises a chain plate conveying belt, a dust receiving frame is arranged on the lower side of the chain plate conveying belt, a chain conveying belt is fixedly arranged in the dust receiving frame, a material guiding assembly is arranged at the left end of the dust receiving frame, dust and impurities adheringto the chain plate conveying belt can be effectively blown off and blown to the dust receiving frame by arranging an air blowing assembly to cooperate with a sweeper, the chain plate conveying belt can be effectively cleaned in time, and normal use of the chain plate conveying belt is effectively guaranteed; and the dust receiving frame is arranged below the chain plate conveying belt to effectively receive the dust and the impurities that fall from the chain plate conveying belt during working, the dust and the impurities are conveyed to a ship through the material guiding assembly, the returned materials generated by the chain plate conveying belt are effectively treated in time, and the situation that the dust or the impurities fall to pollute the surrounding environment is effectivelyavoided.

The invention discloses a material turnover and air-drying machine which comprises a material lifting conveyor, a framework and a plurality of fans. The material lifting conveyor is arranged in the framework and is provided with a conveyor belt, the fans are arranged above the conveyor belt, a feed inlet and a discharge outlet are respectively formed in two ends of the conveyor belt, a transmission roll shaft and a turning roll shaft are respectively arranged at the two ends of the conveyor belt, and a motor is connected to the transmission roll shaft. The material lifting conveyor is provided with a plurality of turning roll shaft groups, the turning roll shaft groups comprise high-angle turning roll shafts and base-angle turning roll shafts, and expansion slide grooves are formed in two ends of each of partial base-angle turning roll shafts. The fans are connected with the motor, and air knives are arranged at openings of the fans. Chain wheels, bearings and bearing blocks are arranged at two ends of each of the transmission roll shaft, the turning roll shaft, the high-angle turning roll shafts and the base-angle turning roll shafts. Barriers are respectively arranged on the left, right and lower sides of the material lifting conveyor. Owing to the arrangement, the material turnover and air-drying machine has the advantages of sanitation, continuity, turnover ability and the like. Besides, technical requirements on low labor consumption and good air-drying effect can be met.

The invention provides an automatic cleaning device, particularly the automatic cleaning device used for cleaning air sucking holes of an idler wheel. The idler wheel comprises a plurality of air sucking holes; the automatic cleaning device comprises at least one blowing device; and the blowing device is arranged beside the wheel surface of the idler wheel so as to blow toward the air sucking holes of the rolling idler wheel. Due to the adoption of the blowing device, dust or dirt in the air sucking holes of the rolling idler wheel can be blown off, the air sucking holes are always kept clean and ventilating and can be blown and cleaned without stopping the idler wheel, and the production efficiency of a product is prevented from being affected by the stop of the idler wheel.

The invention provides a staining instrument which is used for tissue slice immumohistochemical staining before a hospital morphology pathological test. The staining instrument comprises a workbench and a mobile mechanical head, wherein the mechanical head is located above the workbench; a suction nozzle area, a reagent area, a recycling area and a staining area are arranged on the workbench; a suction nozzle is arranged in the suction nozzle area; a reagent bottle containing a reagent is arranged in the reagent area; a test block is arranged in the staining area; the mechanical head moves to the suction nozzle area, effectively extracts a suction nozzle and then moves to the reagent area for absorbing the reagent; and then the mechanical head is used for dropwise adding the reagent into the staining area and putting the suction nozzle to the recycling area. The invention also provides a control method for the staining instrument. The control method is used for performing staining operation and comprises the following steps: S1) acquiring the suction nozzle from the suction nozzle area by a sucker of the mechanical head; S2) absorbing the reagent in the reagent area through the suction nozzle by the sucker; S3) dropwise adding the reagent in the suction nozzle onto the test block; S4) separating the suction nozzle from the sucker and placing the suction nozzle into the recycling area. The staining instrument and the control method thereof have the advantages of simpleness, high degree of automation, and the like.

The invention provides a thread rolling board for bolt processing, including a static thread rolling board and a dynamic thread rolling board. The static thread rolling board is provided with a first adjusting device, and the first adjusting device includes a first adjusting bottom plate, a first Positioning plate, second positioning plate, the first positioning plate can move along the width direction of the adjusting bottom plate, which can be applied to the processing of bolts with different diameters, and the second positioning plate can move along the width direction of the first positioning plate, which can be used for different parts of the bolt thread processing; the groove between the adjacent tooth lines of the static thread rolling board is provided with a blowing port, the blowing port is connected with the blowing pipe, the other end of the blowing pipe is provided with a blower, and the moving thread rolling board is provided with a vent, There is a slag collecting tank at the lower end of the ventilation duct and the ventilation duct, and the blower can effectively blow off the waste, part of which falls, and the other part enters the slag collecting tank in the moving thread rolling board. After that, the waste chips in the slag collecting tank can be poured out and reinstalled.

The invention discloses a line foreign matter removing device for power distribution network engineering rush-repair operation, and belongs to the technical field of power transmission line maintenance. The line foreign matter removing device for power distribution network engineering rush-repair operation comprises a supporting part, a controller, a folding and unfolding structure, a rotating structure, a movable clearing structure, an air injection removing structure and a telescopic structure. The movable clearing structure comprises two clearing parts which are rotationally connected witheach other; the two clearing parts can be closed to form a ring; a line is positioned in the two closed clearing parts; the clearing parts are used for clearing foreign matters on the line; a telescopic structure is arranged on the upper portion of the supporting part, contact between the movable clearing structure and the line or separation between the movable clearing structure and the line canbe achieved, foreign matters on the power transmission line can be effectively removed, the clearing efficiency is high, operation is easy and convenient, time and labor are saved, and potential safety hazards caused by high-altitude hot-line work of workers can be effectively avoided.

The invention discloses a top-blown wind device of an automatic car washing machine. The top-blown wind device comprises a dragon gate and a blow-off nozzle. The blow-off nozzle is arranged at the top of the dragon gate with the blow-off direction pointing to the top of a car. The blow-off nozzle is integrally arc-shaped or U-shaped, so that an included angle between part of wind direction of the blow-off nozzle and the top of the car is a closed angle. By the application of the top blowing wind device, the problem that single wind direction is not good in blow-dry effect is solved; through the arc-shaped or U-shaped structure, blow-off direction from the middle to the edge at the top of the car gradually changes, and water droplets can be effectively blown off.

The invention discloses a device for cleaning a scanning apparatus for an automobile chassis. The device mainly comprises racks, an electromotor, rocker arms and an air injection device, wherein the air injection device is composed of a seat body and air nozzles; each rack is internally provided with a gear, and the lower ends of the two rocker arms are respectively connected to the two gears; the seat body of the air injection device is arranged between the two rocker arms, the two ends of the seat body are respectively fixedly connected with the upper ends of the two rocker arms, the bottom of the seat body is uniformly provided with at least one row of air nozzles at intervals, and the seat body is provided with an air inlet; and the electromotor is arranged on one rack, the shaft of the electromotor is connected with a driving gear by a coupling, and the driving gear is arranged in the rack and meshed with the gear in the rack. The device disclosed by the invention is simple in structure and convenient to operate; because high-pressure air is injected from the air nozzles, dust on the surface of a scanning window of the scanning apparatus for the automobile chassis can be effectively blown away, thereby achieving the purposes of quickly cleaning the scanning window and improving the image shooting quality of the scanning apparatus.

The invention discloses a quick-drying automobile part drying box. The quick-drying automobile part drying box comprises a box body, retaining rings, a material containing cylinder, a first hot air pipe, a second hot air pipe, a first air suction pipe, a second air suction pipe, through holes, a liquid outlet pipe, a electronic control valve, a liquid receiving box and a control device; an openingis formed in the upper end of the box body; the upper end of the box body is covered with a sealing cover; a circle of retaining rings are arranged on the inner wall of the box body; the material containing cylinder with an opening at the upper end is arranged in the box body; a circle of flanges are arranged on the outer wall of the top end of the material containing cylinder; the multiple through holes are formed in the bottom wall and the side walls of the material containing cylinder; the liquid outlet pipe is arranged at the bottom of the box body; the tail end of the liquid outlet pipeis connected with a liquid receiving box; the electric control valve is arranged on the liquid outlet pipe; and the liquid outlet pipe is connected with the first air suction pipe. According to the quick-drying automobile part drying box, retaining rings, the material containing cylinder, the first hot air pipe and the first air suction pipe are matched, so that water on an automobile part can beeffectively blown off, the second hot air pipe is facilitated to further dry, and the drying speed is improved.

The invention discloses an automatic winding device and method for a micro motor coil, and relates to the technical field of motor winding. The device comprises a support frame, a driving mechanism and a transmission mechanism; the driving mechanism and the transmission mechanism are used for fixing and driving a rotor to rotate, and under the action of the transmission mechanism, the operation of the driving mechanism drives the enamelled wire to axially reciprocate in the axial direction of the rotor. The device also comprises an adjusting mechanism which is used for adjusting the axial reciprocating distance of the enamelled wire. The device has the advantages that the rotor is fixed through the driving mechanism, then the rotor is driven to rotate, and meanwhile, under the action of the transmission mechanism, the enameled wire is driven to axially reciprocate in the axial direction of the rotor, so the enameled wire can be uniformly wound on the surface of the rotor in a reciprocating manner, and the winding effect and efficiency are improved; the problems that the winding efficiency is low and the winding effect is poor due to the fact that the motor coil is wound manually are solved.

The invention discloses a top blowing device of a car washer. The top blowing device comprises a gantry and two blowing openings, the blowing openings are formed in the top of the gantry, the blowing direction of each blowing opening points to the top of a car, and the blowing openings are connected mutually at a certain angle. By the top blowing device of the car washer, the problem of poor effect due to single air direction during blow-drying is avoided, and water drops can be blown off effectively through the two blowing openings combined at a certain angle.

The invention discloses wire and cable processing equipment. The surface of a bottom plate is fixedly connected with a cooling frame, a dust removal box, a power assisting wheel, a first fixing frame,a second fixing frame and a motor fixing frame from left to right. The top of the first fixing frame is fixedly connected with a telescopic air cylinder through a supporting frame; the bottom end ofa piston rod of the telescopic air cylinder penetrates through the top of the first fixing frame and extends to an inner cavity of the first fixing frame; and the inner cavity of the first fixing frame is movably connected with the surface of the piston rod of the telescopic air cylinder. The invention relates to the technical field of cable processing. According to the wire and cable processing equipment, all the structures are matched to carry out cooling, dust removal, cutting and take-up operation on the processed and formed cable in sequence; a plurality of processing flows are integratedand synchronously carried out, so that the processing efficiency is higher, and time required for transportation in each processing procedure is effectively saved; and the wire and cable processing equipment is suitable for processing of large-batch cables, and the processing speed of the processing equipment is increased.

The invention relates to the field of transportation and specifically discloses a freight container. An air collection cavity is arranged in a front board of the container; a telescopic board is arranged in the container; one end of the telescopic board is hinged to a bottom board at the rear part of the container and the other end of the telescopic board is capable of sliding vertically at the front board; the two sides of the telescopic board respectively abut against a left side board and a right side board; a return spring is arranged under the telescopic board; a compression cavity is formed under the telescopic board; the compression cavity communicates with the air collection cavity; the telescopic board comprises a first board and a second board which are connected to each other ina sliding manner; an inner cavity is arranged in the first board; a piston fixed to the end of the second board is arranged in the inner cavity; an air flow passage which communicates with the innercavity is arranged in the second board; a pressing valve for communicating the air collection cavity with the air flow passage is arranged at the bottom of the front board; the left side board and theright side board are provided with air outlets; the left side board and the right side board are provided with slideways communicating the air collection cavity with the air outlets; and blocking-upblocks for isolating the air collection cavity from the air outlets when the container is in a horizontal state are arranged in the slideways. The freight container facilitates the removal of residualmaterials.

The invention provides an automatic cleaning device, particularly the automatic cleaning device used for cleaning air sucking holes of an idler wheel. The idler wheel comprises a plurality of air sucking holes; the automatic cleaning device comprises at least one blowing device; and the blowing device is arranged beside the wheel surface of the idler wheel so as to blow toward the air sucking holes of the rolling idler wheel. Due to the adoption of the blowing device, dust or dirt in the air sucking holes of the rolling idler wheel can be blown off, the air sucking holes are always kept clean and ventilating and can be blown and cleaned without stopping the idler wheel, and the production efficiency of a product is prevented from being affected by the stop of the idler wheel.

The invention discloses a top blowing device of an automatic car washing machine in the technical field of high-voltage electric power engineering. The top blowing device of an automatic car washing machine of the present invention includes: a gantry 1 and a blowing port 2, and the blowing ports 2 can be one or more. Located on the top of the gantry 1, it is arranged longitudinally or vertically along the car, and its blowing direction points to the top of the car. The blowing port 2 is arc-shaped or U-shaped as a whole, so that the angle between part of the wind direction of the blowing port 2 and the car top is an acute angle. The top blowing device of the automatic car washing machine avoids the problem that a single wind direction is not effective when drying. Through the arc or U structure, the blowing wind direction obtained from the middle of the car roof to the edge changes gradually, which can effectively blow off water droplets.

The invention relates to a dust-reducing device for an air-film building, comprising a dust-removing box and a main body, wherein a first mounting plate is installed inside the dust-removing box, and a card slot is arranged inside the first mounting plate, and the inside of the card slot is installed There is a clamping block, and a connecting block is connected below the clamping block, a bearing is installed inside the connecting block, and a ball head is connected below the bearing. The beneficial effects of the present invention are: the dust suppression device of the air film building, when the fan starts to work, the dust suppression device will generate a suction force, and the air inside the air film building will be sucked into the dust removal box at the cover plate, and the dust inside the dust removal box will pass through the dust removal box. , the air continues to enter the main body through the air duct, and the air is further dust-reduced in the main body, and then flows into the fan through the second air outlet, and is transported by the fan to the third air outlet and discharged to the outside of the air film building. The one-way circulation structure can effectively reduce the dust in the air inside the air film building, and effectively meet the needs of people.

The invention relates to a dust falling device for an air film building. The dust falling device comprises a dust removal box and a main body, a first mounting plate is mounted in the dust removal box, a clamping groove is formed in the first mounting plate, a clamping block is mounted in the clamping groove, a connecting block is connected to the lower part of the clamping block, a bearing is mounted in the connecting block, and a ball head is connected below the bearing. The dust falling device for the air film building has the beneficial effects that when a fan starts to work, the dust falling device can generate suction force, air in the air film building is sucked into the dust removal box at the position of a cover plate, through dust removal in the dust removal box, the air continues to enter the main body through an air guide pipe, dust falling is further conducted on the air in the main body, and the air flows into the fan through a second air outlet, the air is conveyed to a third air outlet by the fan and is discharged to the outside of the air film building, so that a one-way circulating structure is formed, the air in the air film building is effectively subjected to dust falling treatment, and the use requirements of people are effectively met.

The invention discloses an outdoor remote sensing monitoring device capable of preventing insects from entering. Theoutdoor remote sensing monitoring device comprises a device external frame, one end of the device external frame is fixedly connected with a sensor connecting rod, one end of the sensor connecting rod is fixedly connected with an infrared remote sensing sensor, and the upper part of the inner side of the device external frame is fixedly connected with an upper blowing groove. The lower portion of the inner side of the device outer frame is fixedly connected with a lower air blowing groove, upper air blowing holes are formed in the upper air blowing groove, and lower air blowing holes are formed in the lower air blowing groove. The outdoor remote sensing monitoring device can achieve the effect of preventing insects from entering through the remote sensing technology, monitors the insects through the remote sensing sensor, controls the blowing mechanism to blow off the insects, and is good in insect prevention effect and high in practicability.

A jigsaw having a housing 4,6 and a support shoe 38 pivotable relative to the housing is disclosed. A bridge member 42 is mounted to the support shoe 38 and is connected to a connector piece 44 to define a conduit for transporting air from a duct in the housing, connected to a fan for cooling a motor in the housing, to a location at which a jigsaw blade of the jigsaw cuts through a workpiece. Actuation of a trigger 10 on the housing supplies power to a motor in the housing, which causes reciprocating motion of the jigsaw blade, and causes the fan in the housing to expel air through bridge member 42. Air is directed from bridge member 42 onto the jigsaw blade in a direction transverse to a line of cutting action of the jigsaw. This enables 10 the outlet of bridge member 42 to be located very close to the jigsaw blade without obscuring the user's view of the blade, and blows dust away from the line to be cut by the jigsaw 2.

The invention discloses a line foreign matter removal device for emergency repair work of electric power distribution network engineering, and belongs to the technical field of transmission line maintenance. A line foreign matter removal device for emergency repair work in power distribution network engineering, including a support part, a controller, a retractable structure, a rotating structure, a dynamic removal structure, an air jet removal structure, and a telescopic structure. The dynamic removal structure includes two mutually rotating and connected The cleaning part, the two cleaning parts can be closed to form a ring, the circuit is located in the two closed cleaning parts, the cleaning part is used to remove foreign matter on the circuit, and the telescopic structure is set on the upper part of the supporting part, which can realize the contact between the dynamic cleaning structure and the circuit or The detachment of the dynamic removal structure from the line can effectively remove the foreign matter on the transmission line, the removal efficiency is high, the operation is simple and convenient, saving time and effort, and can effectively avoid the safety hazards caused by the live work of the staff at high altitude.

The invention belongs to the technical field of glass homogeneous processing equipment, and specifically relates to a building glass homogeneous furnace, which includes a furnace body, a fan and a heater. The furnace body is provided with an air inlet and an air outlet; the inside of the furnace body is divided into Heating chamber, heating chamber, air inlet channel and air outlet channel; there is a built-in air channel connected with the air inlet channel in the heating chamber; there is a boss above the built-in air channel; between the boss and the bottom of the furnace body from left to The No. 1 steel wire mesh, the No. 2 steel wire mesh and the No. 3 steel wire mesh are arranged vertically in turn on the right side; a sliding block is arranged under the No. 1 steel wire mesh, No. 2 steel wire mesh and No. 3 steel wire mesh; , No. 2 steel wire mesh and No. 3 steel wire mesh are taken out and cleaned; there is a movable plate on the air inlet; the invention makes the temperature of the air more uniform when it enters the heating chamber, improves the effect of hot air reacting to the glass, and improves the temperature of the glass. The effect of homogeneity improves product quality and reduces production costs.

The invention discloses a quick-drying automobile part drying box. The quick-drying automobile part drying box comprises a box body, retaining rings, a material containing cylinder, a first hot air pipe, a second hot air pipe, a first air suction pipe, a second air suction pipe, through holes, a liquid outlet pipe, a electronic control valve, a liquid receiving box and a control device; an openingis formed in the upper end of the box body; the upper end of the box body is covered with a sealing cover; a circle of retaining rings are arranged on the inner wall of the box body; the material containing cylinder with an opening at the upper end is arranged in the box body; a circle of flanges are arranged on the outer wall of the top end of the material containing cylinder; the multiple through holes are formed in the bottom wall and the side walls of the material containing cylinder; the liquid outlet pipe is arranged at the bottom of the box body; the tail end of the liquid outlet pipeis connected with a liquid receiving box; the electric control valve is arranged on the liquid outlet pipe; and the liquid outlet pipe is connected with the first air suction pipe. According to the quick-drying automobile part drying box, retaining rings, the material containing cylinder, the first hot air pipe and the first air suction pipe are matched, so that water on an automobile part can beeffectively blown off, the second hot air pipe is facilitated to further dry, and the drying speed is improved.

The invention discloses an efficient heat dissipation electric power cabinet for electric power engineering. The cabinet comprises a base, and supporting legs are respectively fixed at four corners of the bottom surface of the base. According to the efficient heat dissipation electric power cabinet for the electric power engineering of the invention, each electric component is installed in an independent cylinder, so that the purpose of directly cooling each electric component in a one-to-one manner can be achieved, and the circulation process of cooling water in an inner cavity of a first arc-shaped plate can be achieved through a submersible pump, so that the cooling effect on air circulating in a ventilation pipe is effectively achieved; the air blown to the electrical components through the ventilation pipe is cooled, the heat dissipation effect of the electrical components is improved; slow rotation of each cylinder can be achieved at the same time through a motor, the air can be blown to each part of the electrical components in all directions, the heat dissipation effect of the electrical components is further improved; and in addition, due to the function of blowing air around the electric components in all directions, the amount of dust adsorbed on the electric components can be effectively reduced.