172results about How to "Increase the suction area" patented technology

The present invention provides a floor nozzle structure of dust cleaner. Its structure comprises a suction inlet placed on the undersurface of floor nozzle and used for sucking refuse and a suction channel which is connected with suction inlet for guiding the refuse to suction inlet and is recessed to a certain depth, the plane projection of the described suction channel is characterized by setting at least more than two suction channels whose suction direction is tangential to the suction inlet. Besides, said invention also provides two other floor nozzle structures, their common feature lies in that these floor nozzle structures can greatly raise the suction force for sucking air so as to raise the performance of dust cleaner.

The invention discloses a building construction site dust removal device convenient to move. The device comprises a device body and universal wheels. The left side of the device body is provided with a dust entrance, the left side of the dust entrance is connected to a dust suction inlet, the inside of the dust suction inlet is provided with a static electricity adsorption ring, the universal wheels are installed on the lower side of the device body, the right side of the dust entrance is connected to a dust collecting device, the inside of the dust collecting device is provided with a filter screen, the dust collecting device and an adsorption device are connected through a first connecting pipeline, the inside of the adsorption device is provided with an adsorption layer, the right upper side of the adsorption layer is connected to a gas outlet pipeline, the right side of the inside of the device body is provided with a water tank, the right side of the water tank is connected to a second connecting pipeline, the right side of the second connecting pipeline is provided with a spray header, and the center of the right part of the device body is provided with a lighting device. The building construction site dust removal device convenient to move is simple in structure and reasonable in design, and the device can be convenient to move through the universal wheels.

The invention discloses textile equipment with dedusting and humidifying functions. The textile equipment comprises hydraulic telescopic rods, a water-permeable thin film, a second exhaust fan, a first booster pump and a mounting plate. The hydraulic telescopic rods are arranged to be used for adjusting the height of a base so that the height of a textile machine body can be adjusted, and hence the requirements of operators of different heights are met. The water-permeable thin film is arranged to be used for adsorbing cotton thread scraps and dust entering a dedusting and humidifying box and meanwhile humidifying the air. The humidified air in the dedusting and humidifying box can be exhausted out of an air outlet pipe through the second exhaust fan so that the air in a workshop can be humidified, and the phenomenon that the air in the workshop is excessively dried and thus yarns can be broken easily in the spinning process is avoided. Filtered sewage in a filtering tank can enter a water storage tank through a first water guide pipe with the first booster pump, and therefore water resources can be recycled. The environmental protection property of the equipment is improved, dedusting and humidifying cost of the workshop is reduced, and equipment practicability is improved.

The invention discloses haze purification device, and relates to the field of purification equipment. The haze purification device comprises a base, a purifying box, a height adjusting mechanism, a filter screen cleaning mechanism and a driving mechanism. The purifying box is arranged on the base, an air inlet is formed in the lower end of one side wall of the purifying box, an air outlet is formed in the upper end of the other side wall of the purifying box, an air suction cover is arranged on one side of the purifying box, the air inlet is connected with the air suction cover through a hose, and a filtering assembly is arranged in the purifying box and arranged between the air inlet and the air outlet. The height adjusting mechanism is connected with the base, the top of the height adjusting mechanism is connected with the air suction cover, and the height adjusting mechanism can adjust the height of the air suction cover. The filter screen cleaning mechanism is arranged in the purifying box, and the filter screen cleaning mechanism can beat the filter assembly. The driving mechanism is connected with the height adjusting mechanism and the filter screen cleaning mechanism. The height adjusting mechanism is adopted to adjust the height of the air suction cover, the driving mechanism drives the air suction cover to swing left and right, the air suction area of the air suction cover is increased, the filter screen cleaning mechanism is used for beating the filter assembly, the filter screen is prevented from being blocked, and the purification efficiency is improved.

The invention provides a foam generator assembly and a washing machine. The foam generator assembly comprises a first drain pipe and a foam generator mounted on the first drain pipe. One end of the first drain pipe is provided with a water outlet connected with an outer drum. The foam generator comprises an air pumping device, an air inlet pipe arranged outside the first drain pipe. One end of the air inlet pipe is connected with the air pumping device and the other end of the air inlet pipe communicates with the interior of the outer drum, which is used for air inhalation. The foam generator assembly further comprises an air outlet part arranged in the interior of the first drain pipe and opposite to an air outlet. The air outlet part is connected with the air pumping device. The foam generator assembly has the following beneficial effects: when the air pumping device works to discharge inhaled air by the air inlet pipe through the air outlet part, detergents or washing powder in washing water can be fully dissolved and bubbles generate; clothes are cleaner; meanwhile, friction between clothes and the outer drum during washing is reduced; quality of clothes is protected; and user's experience is improved.

The invention relates to the technical field of building construction, and discloses a dust removing device used for buildings. The device comprises a removal box, wherein a first through hole is formed in the upper surface of the removal box, a rotating pipe is rotatably connected with the interior of the first through hole through a bearing, the outer wall of the rotating pipe is fixedly sleevedwith a driven gear, a driving motor is fixedly connected with the upper surface of the removal box, an output end of the driving motor is fixedly connected with a driving gear, the driving gear and the driven gear are meshed, a first connection pipe is fixedly communicated with the upper end of the rotating pipe, a second connection pipe is fixedly communicated with the end, away from the rotating pipe, of the first connection pipe, a rotating cylinder is fixedly communicated with the end, away from the first connection pipe, of the second connection pipe, a second through hole is formed in the outer wall of the rotating cylinder, and a hole wall of the second through hole is rotatably connected with the second connection pipe through a ball bearing. By means of the dust removing device used for the buildings, a dust removing area can be enlarged, the dust removing efficiency is improved, collected dust can be fast cleaned away, and operation is simple and convenient.

An air conditioning unit has an air conditioning case, a blower, and a heat exchanger. The air conditioning case is arranged in a vehicle compartment on a rear side with respect to an instrument panel in a traveling direction of a vehicle and forms an air passage delivering air toward a specified area of the vehicle compartment. The blower has at least first and second impellers and a fan case housing the first and second impellers, and ventilates the air in the air conditioning case by drawing and blowing air, by using a rotation of the first and second impellers, through first and second suction ports formed in the fan case. The heat exchanger is arranged in the air conditioning case on an upstream side of the blower in an airflow direction and exchanges heat of the air. The blower draws air from the heat exchanger and blows the air to the specified area of the vehicle compartment. The fan case has a portion in which at least the first and second suction ports are formed, and the portion is arranged inside of the air conditioning case.

The present invention discloses an energy-saving type automatic control multi-room rice flour dryer, which comprises a material feeding rack used for feeding rice flour, a dryer body consisting of at least more than three drying room units connected one by one, a material discharging rack used for discharging rice flour, a rice flour conveying system, a hot air circulation system, a moisture removing circulation system and an automatic control system. The dryer body consisting of at least more than three drying room units, the moisture removing circulation system, the hot air circulation system and the automatic control system are adopted. Wherein the dryer body adopts at least more than three drying room units because that during rice flour drying process, the rice flour in each drying room units has different water content. The moisture removing system in the present dryer adopts two main parts of direct and circulation moisture removing system, which are well combined with the drying process of rice flour, so that the drying effect of rice flour is ensured and the utilization efficiency of wet hot air in the dryer body is improved.

The invention belongs to the field of grinding machines, and particularly relates to a grinding machine with an efficient dust removing function. The grinding machine aims at the problems that in theprocess that raw materials are machined by an existing grinding machine, dust is generated, serious pollution is caused, and therefore the physical health of operators is influenced; and meanwhile thedust falls onto mechanical equipment to be accumulated, and the mechanical equipment is likely to be damaged. According to the following scheme, the grinding machine comprises an operation table, thetop of the operation table is fixedly connected with a grinding machine body, and the top of the operation table is fixedly connected with a dustproof frame; and the grinding machine body is locatedin the dustproof frame, and one side of the dustproof frame is fixedly connected with a supporting plate. The grinding machine is reasonable in structure and easy to operate, a driving motor can drivea dust suction cover to do transverse reciprocating motion, and therefore the dust suction area is increased, dust removal is more efficient, then the physical health of the operators cannot be influenced, and harm of the dust to the mechanical equipment can be avoided.

The invention provides a mobile high-speed steel die rapid dust exhaust apparatus. The mobile high-speed steel die rapid dust exhaust apparatus comprises a base plate, universal wheels installed below the base plate, a handrail installed at the edge of the back side of the base plate, an air compressor, a collection box, an air blowing pipe, an air sucking pipe, a soft pipe, an air inlet pipe and a handle. The air compressor and the collecting box are both installed on the base plate; the air blowing pipe is connected between the air compressor and the collecting box; one end of the air sucking pipe is installed on a pipe wall of the air blowing pipe in an inclined butt joint manner, and the air sucking pipe inclines to the air compressor; one end of the soft pipe is installed at the other end of the air sucking pipe in a butt joint manner, and the other end of the soft pipe is installed at one end of the air inlet pipe in a butt joint manner; the handle is arranged on the air inlet pipe in a sleeving manner, and a valve is arranged on the air inlet pipe; an air outlet window is arranged at the top of the collection box, and a filtering net is arranged on the air outlet window; an arc-shaped baffle and a guide plate are arranged in the collection box; and a dust collecting box is arranged at the bottom of the collection box in a drawer manner. The dust exhaust apparatus is large in sucking force, very practical, convenient to use and thorough in dust sucking.

The invention discloses an environmental-friendly cleaning vehicle for roads. The environmental-friendly cleaning vehicle comprises a carrier, wherein a connecting plate is fixedly connected to the lower end of the carrier. The environmental-friendly cleaning vehicle for roads disclosed by the invention is simple in structure; and an external power source is switched on, and a motor is started, sothat an arc bevel gear is driven to rotate, a twisting rod vibrates up and down, further second mounting blocks rotate under the limiting effect of third supporting rods, extruding rods are continuously extruded up and down by a second rotating disk, under the effect of second springs, brushes vibrate, the contact area of the brushes and a road surface is increased, and the cleaning effect is improved. In addition, a first mounting block horizontally rotates, so that a first supporting rod horizontally rotates under the limiting effect of a second annular sliding groove, and a dust collectorhorizontally rotates; and the dust collector is started, so that the dust suction area is increased, dust is sucked in time, the road surface is completely cleaned, and the living environment of people is protected.

The invention discloses a multi-purpose vacuum cleaner for carpets, which comprises a vacuum cleaner pipe and a vacuum cleaner mouth. The vacuum cleaner pipe is communicated with the vacuum cleaner mouth. The bottom portion of the vacuum cleaner mouth is provided with a lower suction mouth. A cleaning brush is disposed on the rear portion of the lower suction mouth. A straight suction mouth is mounted on the front portion of the vacuum cleaner mouth. The straight suction mouth is communicated with the vacuum cleaner mouth. A top suction mouth is disposed on the upper portion of the straight suction mouth. The top suction mouth is communicated with the vacuum cleaner mouth. A lateral suction mouth is mounted on the lateral section of the straight suction mouth. The lateral suction mouth is communicated with the vacuum cleaner mouth. The straight suction mouth, the top suction mouth and the lateral suction mouth are added, therefore the vacuuming effect at the direction of front, top and lateral is reinforced on the basis of ensuring the vacuuming effect at the bottom portion. The invention has the advantages of reasonable design, convenient usage, reinforced practicability and improved vacuuming effect. The multi-purpose vacuum cleaner for carpets brings convenient operation.

The invention discloses a dust collecting electric drill with illumination function, which comprises an electric drill main body, an electric drill bit holder, and an electric drill bit. The electric drill main body head part is provided with the electric drill bit holder, and the electric drill bit holder is provided with the electric drill bit, wherein a dust collecting mask is arranged between the electric drill bit holder and the electric drill main body and connected with a hose, the hose is connected with a dust / drill cuttings storage chamber, the dust / drill cuttings storage chamber has one side provided with an opening and the other side connected with a driving chamber, a driving motor is arranged in the driving chamber and connected with a suctioning fan, the suctioning fan communicates with the dust / drill cuttings storage chamber, an interlayer is arranged in the dust collecting mask, and a plurality of illuminating lamps are arranged in the interlayer. The invention has the advantages that the dust collecting part of an improved electric drill is increased, that the dust collecting range covered by the dust collecting mask is larger, that dust collection is thorough, that the illuminating lamps arranged on the dust collecting mask can bring convenience to work at night, and that a wire storage device at an electric drill handle can hold electric drill wires to convenience long-distance work.

The invention discloses a core body used for rapid absorption of sanitary products. The core body includes an accelerating layer, a flow guiding layer and an absorption layer from top to bottom. The accelerating layer contains short wood pulp fibers, the absorption layer contains long plant fibers, and the area of the accelerating layer is smaller than that of the absorption layer. By arranging the accelerating layer and the flow guiding layer, an 'instantaneous absorption and slow release' buffering moisture-retention mechanism is provided for liquid before the liquid enters the absorption layer, the absorption time of the absorption layer is prolonged, the liquid absorption contact surface is increased, and the technical effects of improving the absorption performance of the absorption layer and preventing side leakage are achieved.

The invention discloses a clean and environment-friendly method for a workshop. The method includes the following steps: step 1. preparing a main box body and a device box, wherein the device box is fixedly connected with one end of the main box body, and a plurality of air inlet pipes are fixedly inserted into the inner bottom of the main box body; step 2. firstly, controlling, by a controller, adriving motor to be turned on, then driving a worm to rotate, and driving, by the worm, fan blades to rotate through gears; step 3. introducing air into the main box body through the air inlet pipesunder the suction force generated by the fan blades; step 4. leading out air out through a filter screen and an air outlet pipe in sequence. Through the arrangement of a plurality of filtering mechanisms, the device can rapidly and effectively purify the air in the workshop, and thus the purification effect of the device on the workshop is improved.

The invention discloses a handheld window-cleaning machine with a water spray prevention function. The handheld window-cleaning machine comprises a shell assembly with certain inside space, a suction nozzle assembly, a water tank assembly and a water-air separation assembly, wherein the suction nozzle assembly is connected to the front end of the shell assembly in a pluggable manner, the water tank assembly is used for collecting sewage, the water-air separation assembly is used for separating sewage from air, the suction nozzle assembly comprises a suction nozzle upper cover, a suction nozzle and a suction nozzle lower cover which are laid from top to bottom sequentially so as to form a sandwich structure, a groove sinking inwards is arranged at the lower part of the shell assembly, a containing chamber is arranged on the front part of the groove, the water tank assembly is embedded into the groove in a pluggable manner, and the water-air separation assembly is arranged in the containing chamber. The handheld window-cleaning machine with the water spray prevention function has the beneficial effects that while the cleaning efficiency of the window-cleaning machine is improved, the containing space of a sewage tank of the window-cleaning machine is increased, the water spray problem of the window-cleaning machine is solved, the window-cleaning machine efficiency of the window-cleaning machine is improved, and the user experience is improved.

The invention discloses a hardware bathroom product machining plane polishing machine which comprises a frame. A dust storage box is fixedly installed on the left side of the top of the frame, the right side of the dust storage box communicates with a dust suction pump, a dust inlet pipe of the dust suction pump communicates with two dust suction hoods through a tee joint. Hardware fittings placed on a workbench can be clamped and fixed by additionally arranging clamping plates and clamping blocks on the two sides of the workbench, the clamping blocks can be replaced at any time according to clamping needs, meanwhile, the clamping plates are fixed through threaded rods, the positions can be gradually adjusted, and the phenomenon of excessive moving or insufficient moving is avoided. The two dust suction hoods are additionally arranged inside, dust generated by grinding and polishing can be sucked, the dust suction area is large, dust residues are avoided, the situation that too much dust is inhaled to the body of an operator and hurt is caused is prevented, and the polishing efficiency and quality of the hardware fittings are effectively improved.

The invention discloses a composting reactor capable of automatically adding a compound microbial agent and a method thereof. The composting reactor is composed of an aerobic composting bin, a leachate filter screen, a ventilation device, a temperature sensor, a stirring device, an exhaust port and the like. A solar cell panel converts solar energy into electric energy and provides the electric energy for an integrated composting reactor electricity-requiring device. A compound microorganism bacterial liquid staged adding device is used for respectively adding a high-temperature compound microorganism bacterial liquid and a medium-temperature compound microorganism bacterial liquid in different composting stages; a temperature sensor and a liquid level height sensor can respectively detectthe temperature in the composting bin and the liquid level height of the bacterial liquid in a bacterial liquid pool; and a turning device and an aeration device are used for turning and aerating atregular time. According to the composting reactor capable of automatically adding the compound microbial agent, bacterial liquid adding, turning and aeration can be automatically carried out in the composting process, meanwhile, solar energy is used for supplying power to the device, labor and energy are saved, the composting process can be effectively accelerated, the composting effect is improved, operation is easy and convenient, and the composting reactor can be widely applied to rural household garbage treatment.

The invention discloses a water-spraying-preventing handheld window wiper. The water-spraying-preventing handheld window wiper comprises a shell assembly with a certain inner space, a suction nozzle assembly, a water tank assembly and a water and air separating assembly. The suction nozzle assembly is connected to the front end of the shell assembly in a pluggable mode. The water tank assembly is used for collecting sewage. The water and air separation assembly is used for separating the sewage from air. A groove sunken inwards is formed in the lower portion of the shell assembly. A containing chamber is arranged in front of the groove. The water tank assembly is embedded in the groove in a pluggable mode. The water and air separating assembly is arranged in the containing chamber and comprises a water and gas separating body, a motor hood cover plate and an auxiliary water tank cover. The water-spraying-preventing handheld window wiper has the advantages that the water spraying problem of the window wiper can be solved while it is guaranteed that the cleaning efficiency of the window wiper is improved, the water and air separating efficiency of the window wiper is improved, and the user experience is improved.

The invention relates to the field of teaching equipment, in particular to a dust-absorbing blackboard eraser. The dust-absorbing blackboard eraser comprises a dust storage box, dust wiping cotton attached to the bottom of the dust storage box, a filtering device arranged in the dust storage box and an air exhausting device connected with the dust storage box; honeycomb holes and grooves connected with the honeycomb holes are formed in the dust wiping cotton; and dust absorbing holes corresponding to the honeycomb holes are formed in the bottom of the dust storage box. The invention aims at providing the dust-absorbing blackboard eraser which is low in price and is capable of effectively reducing dust pollution of a classroom.

The invention discloses an integrated mobile monitoring vehicle. The integrated mobile monitoring vehicle comprises a vehicle body and is characterized in that a detection chamber, a control chamber and a power supply chamber are successively arranged in the vehicle body; dust detection devices are arranged in the detection chamber; a control computer used for receiving and storing information anda data analyzing device used for receiving detection data and analyzing the received detection data are arranged in the control chamber; an electronic map is arranged in the control computer; a powersupply device is arranged in the power supply chamber; a ground dust sucking device is arranged at the front end of the vehicle body and is communicated with the dust detection devices; dust discharging pipes are arranged at the bottom of the vehicle body; an air detection device is arranged at the upper end of the vehicle body; a camera is arranged on the rear side of the vehicle body and is connected with the control computer. The monitoring vehicle is capable of dynamically detecting the content of the dust on the whole ground in real time; the problems of low efficiency and high contingency of the current manual detection are solved; the working efficiency is improved; the safety of workers is ensured.

The invention discloses an environment-friendly 3D printer. The environment-friendly 3D printer comprises a box body, a controller, cleaning mechanisms, a double-shaft moving spray head, a lifting platform, a storage roller and an extrusion feeding device, wherein the controller is installed at the front lower right corner of the box body, the number of the cleaning mechanisms is two, the two cleaning mechanisms are arranged on the left side and the right side of an inner cavity of the box body respectively, the double-shaft moving spray head is arranged at the top end of the inner cavity of the box body and electrically connected with the controller, the lifting platform is arranged at the bottom end of the inner cavity of the box body in the up-down direction, the lifting platform is electrically connected with the controller, the storage roller is arranged on the rear side of the box body, and the extrusion feeding device is installed at the upper right corner of the rear side of the box body and electrically connected with the controller. According to the environment-friendly 3D printer, UFP generated by printing can be subjected to dust collection treatment during 3D printing,so that the UFP discharge amount is reduced, the effect of being more environment-friendly is achieved, harm to the body health of a user is prevented, and the practicability is high.

The dust sucking automobile consists of mainly sucking bin, double filtering box, suction blower and internal combustion engine. The sucking bin can move right and left to contact with ground, and there are also one rolling brush made of nylon rope to kick up dust and other garbage inside the sucking bin, rubber skirt around the lower part of the sucking bin including one front piece long enough to contact ground and three pieces separated for some distance in the other three directions, one screw type heavy garbage eliminator in front of the sucking bin, one screw type light garbage eliminator over the sucking bin and one light garbage concentrating box in front. The right and left filtering boxes are provided with inclined coarse and fine filtering sheets and are controlled by two wind gates for operating alternately.

The invention provides a purification and dust removal device. A plurality of dust suction pipes are vertically distributed in a box body of the purification and dust removal device; cathode lines penetrate through the dust suction pipes respectively and are fixed by an upper frame and a lower frame; the upper end parts of the cathode lines are fixed on the upper frame, and the lower end parts of the cathode lines are fixed on the lower frame; the upper frame and the lower frame are both fixed on the box body; the upper frame or the lower frame is connected with a high-voltage power supply system through a wire. The dust suction pipes are arranged to greatly enlarge the dust collection area; the cathode lines penetrate through the centers of the dust suction pipes, so that the internal part of each dust suction pipe forms a high electric field which is uniform in strength, large in onset area, and capable of rectifying the exhaust gas when the exhaust gas passes through each of the dust suction pipes; the cathode lines are fixed through elastic elements, so that the cathode lines can be tensioned tightly; the elastic elements are low in wind resistance and low in possibility of swing, so that the cathode lines are better in stability.

The invention discloses a demountable nonmetallic FRP electrostatic dust collection device suitable for automatic production. The electrostatic dust collection device is low in cost, light in weight, convenient to assemble, firm, durable, good in dust collection effect, anticorrosive and high-temperature-resistant and can prevent cathode oscillation under high smoke speed. An anode supporting beam and a cathode supporting beam are fixedly arranged in a box; a cathode top supporting pipe and a cathode bottom positioning pipe are arranged on the cathode supporting beam; multiple honeycomb cylinders are arranged on the anode supporting beam and comprise multiple plate members, connecting strips and coamings; a hexagonal-prism-shaped dust collection unit is formed on each honeycomb; cathodes are arranged in cathode sleeve holes in the top supporting pipe and the cathode bottom positioning pipe; cathode carbon fiber layers are arranged on the surface of the cathode top supporting pipe; the connecting strips are connected with the anode supporting beam through FRP angle steel; carbon fiber layers are arranged on the surfaces of the plate members and the connecting strips and the outer side face of the angle steel; an anode carbon fiber layer is arranged at a position, which corresponds to the angle steel, of the anode supporting beam; an anode carbon fiber board is transversely arranged on one side of the anode supporting beam; a cathode carbon fiber board is transversely arranged on the cathode top supporting pipe.

The invention provides an anti-cavitation double-inlet double suction multi-stage pump which comprises a water inlet pipe, a pump body, a pump shaft, first-class double suction impellers, a secondary double suction impeller, a water outlet pipe, a transitional flow channel, a bearing block, a deep groove ball bearing, a packing seal element and an impeller ring. The water intake way of the impeller is improved. The traditional centrifugal pump usually has a suction inlet, and the anti-cavitation double-inlet double suction multi-stage pump has two double suction impellers used as the first-class double suction impellers so as to have four suction inlets. Compared with common centrifugal pump, the anti-cavitation double-inlet double suction multi-stage pump has larger suction area under the same flow. Thus, the intensity of pressure of the inlets of the impellers is higher, and cavitation can be effectively avoided.

The invention relates to a vehicle air filter convenient to clean. The vehicle air filter convenient to clean comprises a shell, wherein annular opening frames are symmetrically arranged at the two sides of the shell; an annular filter screen is arranged on the shell; air inlets are formed in the two sides of the shell; a negative pressure pump fixed block and a conveyor fixed block are respectively arranged on the annular opening frames; a negative pressure pump supporting rod is arranged on the negative pressure pump fixed block; a negative pressure pump is arranged on the negative pressurepump supporting rod; an air sucking flexible pipe is arranged on the negative pressure pump; one end of the air sucking flexible pipe is connected to a dust sucking hood; and two motor fixed blocks are symmetrically arranged on the annular opening frame. The vehicle air filter convenient to clean has the beneficial effects that the dust sucking hood is driven by the negative pressure pump to suckup dust and impurities on the annular filter screen of the air filter; an expansion link and a circular plate are driven by a rotating motor to rotate to and fro, and thus, the dust sucking hood can be driven to rotate to and fro and can suck up dust to and fro by 360 degrees; the dust sucking area is enlarged; the dust sucking efficiency is improved; the service life of the air filter is greatlyprolonged; and resources are saved.

The invention discloses a dust removal device in an aluminum rod machining process. The dust removal device comprises a shell body, the side wall of the shell body is fixedly connected with a motor, an output shaft of the motor penetrates through the side wall of the shell body and is fixedly connected with a third bevel gear, a rotating shaft is rotationally connected to the inner wall opposite to the shell body, a fourth bevel gear is fixedly connected to the rotating shaft, the third bevel gear is meshed with the fourth bevel gear, the rotating shaft is fixedly connected with two second bevel gears, the inner top of the shell body is fixedly connected with a connecting plate, the inner wall of the shell body is rotationally connected with a first threaded rod, the end, far away from theinner wall of the shell body, of the first threaded rod is rotationally connected to the side wall of the connecting plate, the first threaded rod is in threaded connection with a sliding plate, andthe upper end of the sliding plate is slidably connected to the inner top of the shell body. The dust removal device is reasonable in structural design, and dust on the bottom of the shell body is scraped, then dust removal is carried out, and dust collection is prevented from being too much.

A double-faced dust absorbing multi-barrel dust filter comprises a multi barrel dust filter chamber made of a frame, a suction nozzle operating motor, a round dust filter barrel, a nozzle, a nozzle bracket and a reciprocating bolt which and the round dust filter barrel fastened on the cross bracket of the frame, the nozzle bracket connected with the reciprocating bolt, and the nozzle connected with the dust collection fan, with filter net on both the internal and external arc of the round dust filter barrel. And there are several nozzles on each nozzle bracket and nozzles on each surface of the corresponding filter net. Due to the filter net on both internal and external sides of the round dust filter barrel, the dust suction area enlarges almost one time concerning to the same size of multi barrel dust filter, with volume reduced one third, greatly reduces cost, land occupation and it is convenient for installation and delivery.