2162 results about "Blow out" patented technology

An air guide frame, a fan head, and a handheld concentrating fan are provided. The air guide frame is configured to be arranged at an air outlet of a fan head and guide air from a fan. the air guide frame includes an inner frame and a separator ring arranged at a periphery of the inner frame; a first air channel is formed in a periphery of the separator ring; a second air channel is formed between the inner frame and the separator ring; and a wind speed of wind exported from the second air channel is greater than a wind speed of wind exported from the first air channel. Compared with the existing technology, the air guide frame having the first air channel and the second air channel can implement the wind speeds of winds blown out through the two air channels being different.

The invention relates to the technical field of environmental protection and dust removal, and discloses a dust removal device for calcium hydroxide product production, the dust removal device comprises a box body, the lower surface of the box body is provided with two sets of dust falling hoppers, the two sides of the box body are fixedly connected with an air inlet pipe and an air outlet pipe respectively, and the inner wall of the box body is provided with a partition plate. The driving assembly drives the pulse sliding pipe and the plugging assembly to move downwards, after the pulse sliding pipe and the plugging assembly move to a certain position, the control assembly controls the plugging assembly to plug a certain section of the filter cartridge, then the pulse mechanism enables gas to pass through the pulse main pipe, the pulse fixing pipe and the pulse sliding pipe, and then the gas is blown out from the pulse head. And then the driving assembly drives the blocking assembly to continue to move downwards, pulse dust removal is carried out on the filter cartridge section by section, pulse airflow accurately covers the whole section of the filter cartridge, it is ensured that dust on all parts can be thoroughly removed, and the dust removal effect is greatly improved.

Provided is a heat gun formed by wave-type heating bodies. The heat gun includes a housing assembly and a heating assembly mounted in the housing assembly, where an air supply assembly is fixedly mounted in the housing assembly. The heating wire is wound into a wave-type structure by dedicated equipment. Compared with a traditional slingshot-wire-type structure, the wave-type structure is capable of resisting deformation of the heating wire at a high temperature and in a process from a high temperature to a normal temperature such that defects caused by thermal expansion and contraction when the heating wire operates or stops can be avoided. After the wave-type structure of the heating wire is wound around a mica plate, a direction of the wave-type structure is exactly perpendicular to a direction of an air channel such that wind generated by a fan behind can blow out heat with maximum efficiency.

The invention provides a heat dissipation system and energy storage equipment, and belongs to the technical field of heat dissipation. The heat dissipation system comprises a first air duct structure and a second air duct structure, wherein the first air duct structure comprises first air duct paper with a first air cavity, a first air inlet and a first air outlet; the first air cavity is used for accommodating part of a first heating element; the second air duct structure comprises second air duct paper with a second air cavity, a second air inlet and a second air outlet, and the first air duct paper and the second air duct paper are arranged side by side; the second air cavity is used for containing a second heating piece, and the heating value of the second heating piece is smaller than that of the first heating piece. The air inlet fan is arranged at the first air inlet; the reversing fan is arranged at the downstream of the airflow direction of the first air cavity and the upstream of the airflow direction of the second air cavity; and the air outlet fan is arranged at the second air inlet, and the air outlet fan is used for introducing the air flow into the second air cavity and blowing the air flow out through the second air outlet. According to the invention, the uniformity of heat dissipation can be improved, and the aesthetic property of a corresponding product can be improved.

The invention relates to the technical field of laser cutting equipment, and discloses galvanized coiled plate cutting equipment which comprises a mounting frame, a guide rail structure, a cutting structure, a conveying structure, an intercepting toothed plate, a slag removal fan and a discharging structure. The cutting structure comprises a cutting seat, a laser cutting head, a separated protective cover, the intercepting toothed plate, the slag removal fan and the discharging structure; the separated protective cover is formed by splicing a plurality of splicing covers. Each splicing cover comprises an outer cover plate, an inner air box, a limiting plate, a limiting spring and an air supply hose. When the device is used, high-pressure air is blown out of the inner air box to form a protective air curtain on the splicing cover, the annular air cover and the laser cutting head, and therefore the situation that slag splashes and is intercepted, and zinc steam adheres to the splicing cover, the annular air cover and the laser cutting head can be prevented; and air is forced to be discharged along the cutting seam by the closed space formed by the separation type protective cover, so that the blowing force of the airflow to the lower edge of the notch is enhanced, and the adhering slag can be forcibly stripped.

The invention discloses a directional heat dissipation power distribution cabinet with adjustable air deflectors, which relates to the technical field of equipment for power distribution cabinets and comprises a cabinet body and a heat dissipation unit arranged in the cabinet body. The heat dissipation unit comprises a directional heat dissipation assembly used for carrying out fixed-point jet cooling on key heating elements, an air guide assembly used for optimizing overall airflow organization in the cabinet, and a water cooling assembly used for carrying out pre-cooling on cooling airflow of the directional heat dissipation assembly. The directional heat dissipation assembly comprises a fan at least arranged on the top wall in the cabinet body, an air supply pipe communicated with an outlet of the fan, and an annular air pipe arranged in the power distribution cabinet and communicated with the air supply pipe. Through cooperation of the directional heat dissipation assembly and the water cooling assembly, air blown out of the air blowing pipe at the tail end of the telescopic air column is no longer ambient temperature air but low-temperature cold air cooled in advance through the liquid cooling system. According to the pre-cooling type directional air supply mechanism, the heat dissipation efficiency and the limit capacity of air cooling are greatly improved.

The application discloses a kind of in-service air conditioner performance detection device and method.The device is composed of wind receiving chamber, exhaust chamber, return air chamber, differential pressure gauge, two mixers, heating wire and humidifier, return air temperature and humidity probe and return air motor.The device uses electric heating wire heat balance air conditioner refrigeration capacity, through heating and humidification method, air conditioner blows out the air to the detection required temperature and humidity state, and is connected to the return air opening of air conditioner, circulates and operates to reach stable state and has continuous condensate, uses electric energy meter to collect the electric energy of heating wire 1h, and synchronously collects the condensate amount generated by air conditioner 1h, according to the data collected, the performance of in-service air conditioner can be calculated, without disassembling air conditioner, avoid damage to in-service air conditioner.

The invention discloses a laser die-cutting machine capable of cutting an elastic film, and relates to the field of laser die-cutting machines, the laser die-cutting machine comprises a case, a first moving table capable of transversely and vertically moving and a second moving table capable of longitudinally moving are arranged in the case, a mounting frame is fixed on the first moving table, and a laser cutting head is arranged at the bottom end of the mounting frame; a fixing base coaxial with the laser cutting head is arranged at the bottom end of the mounting frame, and the bottom end of the fixing base is connected with an air blowing box and an air suction box which are oppositely arranged. When the stainless steel plate with the single face coated with the film is cut, high-power laser can be directly used for cutting the stainless steel plate at a time, high-speed airflow synchronously blown out by the air cooling mechanism can effectively restrain heat shrinkage of the elastic film caused by high temperature, material deformation and irregular edge cutting are avoided, the machining efficiency is remarkably improved while the high-power laser penetrates through the stainless steel plate, and the production cost is reduced. Repeated positioning errors and operation cost of equipment are reduced, and integrated efficient precision machining of the film-coated metal plate is achieved.

The invention provides a coating device for paper cup production, and belongs to the technical field of paper cup processing, the coating device comprises a transmission frame and a spraying frame, a paperboard is arranged above the transmission frame, the transmission frame is connected with a lifting assembly, the transmission frame is connected with a collecting box, the coating device further comprises a trowelling assembly, the trowelling assembly is connected with a hot-air blower, and the hot-air blower is connected with the spraying frame. The trowelling assembly is used for uniformly scraping a coating on the surface of the paperboard; the device has the beneficial effects that through the lifting assembly and a V-shaped scraper of the trowelling assembly, it can be guaranteed that the thickness of a coating is uniform, redundant paint can be guided to a collecting box and can be recycled after being treated, and the production cost is reduced; meanwhile, the air heater synchronously blows out hot air after the coating is scraped, rapid curing of the coating is promoted, the product quality is improved, the air heater can switch airflow paths to automatically clean the scraping plate, residual coating is stripped through high-speed airflow, it is avoided that subsequent use is affected by drying and caking, the manual cleaning cost is saved, and the long-term scraping precision is guaranteed.

An integrated cylindrical lithium battery capacity grading device disclosed by the present invention comprises an equipment cabinet, a test press machine, a guide mechanism and a heat dissipation device, the test press machine is arranged in the equipment cabinet, the test press machine is of a closed structure, and the test press machine comprises a press machine frame, a lifting frame and a probe module; the guide mechanism is arranged between the press frame and the lifting frame; the heat dissipation device comprises a condenser, a heat dissipation fan module and a guide fan module, the condenser is arranged on the side edge of the equipment cabinet, the heat dissipation fan module is arranged along the circumferential surface of the probe module, and the guide fan module is arranged on the lifting frame; wherein the guide fan module blows out cold air cooled by the condenser upwards, the heat dissipation fan module draws back hot air flowing through the battery, and the condenser, the heat dissipation fan module and the guide fan module are sequentially connected to form a closed circulating air duct in the test press.

The utility model discloses an air humidifier which comprises a shell, a filter screen assembly arranged in the shell and provided with a hollow structure, a wind wheel assembly arranged corresponding to the hollow structure, an air outlet grille arranged corresponding to the wind wheel assembly and arranged at the top of the shell, and a water tank assembly arranged in the shell and used for supplying water to the filter screen assembly. And the heating assembly is arranged on the air outlet path behind the filter screen assembly and is used for heating the wetted air. According to the air humidifier, the humidified air can be heated in cold weather, the humidified air is blown out after the temperature of the humidified air is increased, the humidifying efficiency of the humidifier can be improved, meanwhile, the blown air is more warm and moist when the air humidifier is used in cold weather, and the use comfort of the air humidifier is improved.

The invention discloses a landscape maintenance device for garden design. The landscape maintenance device comprises a supporting mechanism, a blocking mechanism and a limiting mechanism. The supporting mechanism comprises a spraying assembly, a pressure applying assembly, an electric telescopic rod, a supporting assembly and a liquid conveying assembly. The plugging mechanism comprises a plugging assembly and an extrusion assembly; the limiting mechanism comprises a pressure assembly and a buckle assembly. The spraying assembly comprises a spray head and an atomizing plate; the pressure applying assembly comprises a first fixing frame, a sliding blocking frame, a first spring and a pressing rod device. The extrusion assembly comprises a fixed pipe, a telescopic pipe, a round pipe and a ventilation device; an internal mechanism is driven through telescopic movement of the electric telescopic rod, residual liquid drops on the surface of the atomization plate are sucked in firstly, then collected objects are thoroughly blown out through high-pressure gas, residual water and impurities in the atomization plate and an internal flow channel are forcibly removed in a mechanical mode, manual intervention is reduced, and the atomization efficiency is improved. The service life of the atomizing plate and the nozzle runner is obviously prolonged, the maintenance cost is reduced, and the uniformity and reliability of each spraying are ensured.

A positive and negative pressure integrated dust removal device for a dust explosion area is provided with a dust hood, an exhaust fan, a negative pressure air duct, a positive pressure blowing pipe, a positive pressure comb-shaped blowing opening, a comb-shaped part arranged on the positive pressure comb-shaped blowing opening and a dust filter bag. According to the dust collection device, the exhaust fan is arranged to extract air in the first cavity, so that negative pressure is formed in the negative pressure air duct, dust is sucked, the comb-shaped part guides air in the positive pressure air blowing pipe to face airflow blown out of the positive pressure comb-shaped air blowing opening, and the air in the negative pressure air blowing pipe is blown out of the negative pressure comb-shaped air blowing opening. The dust suction hood is arranged in the second cavity, so that dust in the opening is blown by airflow and limited in the second cavity by the dust suction hood, an exhaust fan is matched to extract the airflow in the negative-pressure air suction pipe, and the dust is sucked into the dust filter bag along the negative-pressure air suction pipe, so that the suction force at the inlet end of the negative-pressure air suction pipe is improved, and the dust in the covering area of the opening is removed.

The invention relates to the technical field of additive manufacturing equipment, and discloses a double-nozzle switching structure for multi-material 3D printing, the double-nozzle switching structure comprises a switching lifting assembly, the switching lifting assembly comprises a mounting plate, the inner side of the mounting plate is rotatably sleeved with a motorized shaft, the bottom of the motorized shaft is fixedly connected with a connecting main body, and the connecting main body is fixedly connected with a nozzle; the spray head assembly comprises a discharging assembly, the bottom of the connecting body is fixedly connected with a delay driving assembly, the bottom of the delay driving assembly is rotationally sleeved with a collecting tank, the bottom end of the collecting tank is fixedly sleeved with a chassis, and the edge of the top of the chassis is fixedly connected with a material bearing assembly. The connecting body and the motorized shaft are in linkage to achieve 180-degree switching of the spray head, the discharging assembly blows out spray head materials, the material bearing assembly and the collecting tank cooperate to recycle the materials, the material bearing assembly comprises a semicircular pipeline, and the problems that when the spray head is switched to replace the materials, the spray head needs to be emptied, time is consumed, and consumables are wasted are solved.

The invention relates to the field of valve core cap thread machining, and discloses valve core cap thread machining equipment which comprises a workbench, a blocking frame and a machining base, the blocking frame is arranged on the left side of the upper face of the workbench, the machining base is arranged on the portion, located in the blocking frame, of the upper face of the workbench, and an automatic pushing structure is arranged on the machining base. A U-shaped plate is fastened on the machining seat through a bolt, a rotary transposition structure is arranged on the U-shaped plate, and a thread machining structure is arranged on the workbench and close to the machining seat; the cleaning sleeve of the chipping cleaning structure is inserted into the processed core cap, the cleaning rod is used for driving the bristles to rotate, chippings can be cleaned in the core cap, the air outlet cover, the air outlet hole and the air outlet pump are matched, the air outlet hole is obliquely formed, and therefore the chippings cleaned by the bristles can be blown out of the core cap in time, and the chippings are prevented from being damaged. In this way, residual chippings in the machined core cap can be cleared away more conveniently in a labor-saving mode, and the machining work efficiency is improved.

The utility model discloses a clean workshop air purification device which comprises a purifier body, a disinfection mechanism is arranged at the front end in the purifier body, the disinfection mechanism comprises a liquid storage tank fixedly connected to the front side of the lower end in the purifier body, and connecting pipes are connected to the two ends of the liquid storage tank in an inserted mode. A plurality of evenly-distributed atomizing nozzles are inserted into the sides, close to each other, of the connecting pipes, the upper ends and the lower ends of the connecting pipes are sleeved with buckles, the buckles are fixedly connected to the inner side wall of the purifier body, and the filtering mechanism is arranged in the middle of the interior of the purifier body. Compared with the prior art, the air purifier has the advantages that the quality of air blown out from the interior of the purifier body is higher, the elastic plates on the two sides are pressed towards the middle, the sliding frame is pulled out from the side face, operation of workers is facilitated, and the primary-efficiency filter screen, the medium-efficiency filter screen and the high-efficiency filter screen on the sliding frame can be replaced conveniently.

The application is suitable for the field of tunnel kiln drying technology, and particularly relates to a movable tunnel kiln drying system, which comprises a drying chamber base layer, the side of the drying chamber base layer is connected with a supporting side wall, and the inside of the supporting side wall is provided with a supporting top seat. The supporting top seat, the rolling bearing, the driving blade, the rotating rod, the spiral blade, the air outlet hole, the second air baffle, the first air baffle, the electromagnetic adsorption iron block, the rotating shaft and the third air baffle are arranged, when hot air is used to dry the brick body blank, the spiral blade arranged in the drying blowing cylinder can be continuously rotated by using hot air as power input, so that the hot air blown out of the drying blowing cylinder can flow in a spiral state on the surface of the brick body blank, the hot air can be blown on the surface of the brick body blank more gently and stably, and the phenomenon that cracks or deformation is caused by stress generated on the surface or inside of the brick body blank when the brick body blank is directly blown by the hot air can be avoided.

The utility model relates to the technical field of pet bathing, and discloses a hot air circulation structure suitable for pet bathing, which comprises a machine body, an inner cavity for containing a pet is arranged in the machine body, an air inlet and an air outlet are arranged on the inner side wall of the inner cavity, an air blower and a heater are arranged in the machine body, and air blown out by the air blower is heated by the heater and then flows into the inner cavity. Air enters the inner cavity from the air inlet, and air in the inner cavity is exhausted from the air outlet; after a pet is placed in the inner cavity, the blower blows hot air heated by the heater into the inner cavity through the air inlet, the hot air dries the pet in the process of flowing in the inner cavity, the air body in the inner cavity is exhausted through the air outlet, the air body forms a circular flowing state in the inner cavity, automatic drying of the pet is achieved, operation is convenient, the drying efficiency is high, and the pet drying efficiency is high. And the consumed time is short.

The utility model relates to the technical field of pet cleaning, and discloses an automatic cleaning structure suitable for pet cleaning, which comprises a machine body, an inner cavity for accommodating a pet is arranged in the machine body, and a plurality of nozzles for spraying mixed liquid and clear water into the inner cavity respectively are arranged on the machine body; a plurality of blowers are arranged in the machine body, an air inlet and an air outlet are formed in the inner side wall of the inner cavity, the blowers are aligned with the air inlet, air blown out by the blowers enters the inner cavity through the air inlet, and the air in the inner cavity is exhausted through the air outlet; according to the automatic cleaning structure suitable for pet cleaning, a pet is placed in the inner cavity, the multiple nozzles spray mixed liquid or clean water on the pet body, the clean water is used for cleaning the pet, air blown in through the air inlet flows in the inner cavity, the pet is blow-dried, automatic cleaning of the pet is completed, manual participation is not needed, and the pet cleaning efficiency is improved. Time is saved, and efficiency is improved.

The utility model relates to the technical field of air conditioning, in particular to an air conditioner indoor unit with a circular air outlet. The air conditioner indoor unit comprises a shell, at least one circular air outlet and a fan, wherein the front side of the shell is provided with the circular air outlet; the at least one axial flow fan is in one-to-one correspondence with the circular air outlets and is used for blowing airflow in the shell to the circular air outlets; the air deflectors are vertically arranged at the positions, close to the circular air outlet, in the shell at intervals and comprise the upper air deflectors and the lower air deflectors which are located in the upper area and the lower area of the circular air outlet correspondingly, and the upper air deflectors and the lower air deflectors can swing oppositely so as to guide airflow to be gathered forwards from the circular air outlet to be blown out. According to the utility model, through the arrangement of the circular air outlet, the air supply amount is effectively increased, and the air outlet is provided with the plurality of air deflectors capable of swinging in opposite directions, so that an air gathering and supply form of forward gathering and blowing out is realized, and a large-air-amount airflow is blown out at a high speed, thereby effectively increasing the air supply distance and further realizing long-distance axial flow air supply.

The invention discloses a blade tip blowing method for lift augmentation of a rotor unmanned aerial vehicle, belongs to the technical field of lift augmentation of rotor unmanned aerial vehicles, and aims to solve the problem of insufficient lift force caused by vortex induced resistance generated by a blade tip vortex of a traditional rotor unmanned aerial vehicle. Transverse distributed jet flow is arranged on the 25% c-75% c section of the blade end face airfoil profile (the jet flow is blown out at the double blade tip speed, the two blades symmetrically apply the jet flow, and the jet flow is conveyed through a titanium alloy guide pipe). During design, jet parameters are simulated and optimized through pneumatic modeling (multiple reference coordinate systems and SST k-omega turbulence models), working conditions are dynamically adapted, and vorticity analysis and lift comparison verification are combined. According to the scheme, blade tip vortexes can be damaged, resistance is reduced, lift force is improved, meanwhile, flight stability is guaranteed, and multiple flight working conditions are adapted.

To provide a toy that generates bubble rings that move in all directions 360 degrees in water. [Solution] The device has a structure that includes a nozzle tube at the front end, an expansion tube connected to the nozzle tube and having an inner diameter larger than that of the nozzle tube, a reduction tube connected to the expansion tube and having an inner diameter smaller than that of the expansion tube, and a nozzle tube connected to the reduction tube and having an inner diameter smaller than that of the reduction tube.The device is submerged in water, all air inside is expelled, the nozzle tube is held in the mouth, and air is blown out instantly, causing water and air to be sprayed out from the nozzle tube, which then enters a vortex formed near the nozzle tube, generating a bubble ring that moves in all directions 360 degrees.

The invention discloses an intelligent heat dissipation transformer, and relates to the field of intelligent power grids, and the intelligent heat dissipation transformer is characterized in that a driving motor drives a driving rod to rotate to enable heat dissipation fan blades to rotate, the driving rod drives a reciprocating driving assembly, the reciprocating driving assembly drives a swing lantern ring, and the swing lantern ring vertically reciprocates on a swing rod; meanwhile, a swing lantern ring drives a swing rod to transversely move in a reciprocating mode, the swing rod drives an air guide plate, the air guide plate swings back and forth under the supporting of two supporting rods, under the action of the air guide plate, air blown out by heat dissipation fan blades can be blown to heat dissipation holes in a heat conduction plate under the guiding of the air guide plate, air flowing between the heat conduction plate and a heat dissipation circulating oil pipe is increased, and heat dissipation efficiency is improved. The heat conduction plates swing between the adjacent heat dissipation circulating oil pipes in a reciprocating mode, so that the coverage range of air blown out by the heat dissipation fan blades is larger, the contact area of the heat dissipation circulating oil pipes and the blown air is enlarged, and the heat dissipation efficiency of the heat dissipation circulating oil pipes is improved.

The utility model relates to the technical field of laser processing, in particular to a wafer purging device and a wafer purging system. The wafer blowing device comprises a light barrier, a plurality of shielding gas blowing mechanisms and a plurality of gas blowing mechanisms, and the plurality of shielding gas blowing mechanisms and the plurality of gas blowing mechanisms are arranged by taking the laser outlet as a geometric center. According to the wafer blowing device and the wafer blowing system provided by the utility model, pressurized gas is blown to the surface of the wafer through the gas blowing mechanism, so that the tightness of the wafer is improved; the shielding gas is blown to the surface of the wafer through the shielding gas blowing mechanism, so that the surface of the wafer is covered with the shielding gas, and the oxygen content concentration of the machining area is reduced; besides, in the arrangement mode with the laser outlet as the geometric center, the shielding gas can form a gas curtain around the center of a light spot, the shielding gas can be blown outwards along the surface of the wafer, a micro-positive pressure environment is formed on the surface of the wafer, most external environment air can be prevented from entering a laser machining area, and it is guaranteed that the oxygen content meets the requirement of the machining technology.

The invention relates to the technical field of terminal assembly equipment, in particular to terminal assembly equipment for board-to-board connector production, which comprises a seat body transmission mechanism, a material folding mechanism and a cleaning mechanism, the seat body transmission mechanism comprises a transmission material channel, the transmission material channel is provided with a plurality of transmission channels, and the transmission material channel is provided with a material folding mechanism; the conveying channels are arranged in the direction perpendicular to the extending direction of the conveying channels, the conveying channels are used for containing different plastic shell base bodies, the base body conveying mechanism is used for synchronously conveying the multiple plastic shell base bodies to the material folding mechanism, and the material folding mechanism comprises a material folding driving assembly and a material folding part. The material folding driving assembly is used for driving the material folding piece to move back and forth in the conveying direction of the plastic shell base body, the sweeping mechanism comprises a blowing driving source and a blowing opening, the blowing opening faces the connecting position of the terminal piece and the terminal material belt, and the blowing driving source is used for blowing out gas through the blowing opening.

The invention relates to the technical field of dust removal devices, in particular to a vortex dust removal suction nozzle for laser welding. A vortex dust removal suction nozzle for laser welding comprises a base and a suction mechanism. The two sides of the base are the first side and the second side correspondingly. The absorption mechanism comprises a first connecting pipe and a second connecting pipe. A suction nozzle is arranged at one end of the first connecting pipe, the second connecting pipe comprises a first through pipe and a second through pipe, and a blowing nozzle is arranged at one end of the first through pipe. Gas sprayed out of the portion, close to the first side of the base, of the blowing nozzle is smaller than gas sprayed out of the portion, close to the second side of the base, of the blowing nozzle. Gas sucked by the part, close to the first side of the base, of the suction nozzle is more than that sucked by the part, close to the second side of the base, of the suction nozzle. The blowing nozzle blows out gas to enhance the suction effect of the suction nozzle and reduce the dissipation of smoke dust. The invention provides a vortex dust removal suction nozzle for laser welding, and aims to solve the problems that an existing dust removal device is uneven in smoke suction, smoke is easy to escape, and the suction effect is poor.

The utility model discloses a municipal asphalt pavement repairing device, which belongs to the technical field of pavement repairing devices and comprises a bottom plate, a collecting mechanism is mounted on the upper portion of the bottom plate, a fan is mounted at the upper end of the collecting mechanism, a dust suction pipe is mounted at the input end of the fan, and a dust suction plate is mounted at the bottom of the dust suction pipe. According to the municipal asphalt pavement repairing device, the dust collection plate is buckled to a crack, meanwhile, the insertion rod is inserted into the crack, the wind power mechanism drives air to be sprayed out from the air spraying hole in the bottom of the insertion rod, so that dust at the bottom of the crack is blown out, meanwhile, the draught fan enables the dust collection plate to generate suction force, and airflow circulation is formed in cooperation with the insertion rod; and the effect of cleaning the dust at the bottom of the crack is achieved, so that the problems that dust suction at the deep part of the crack is not thorough and dust is easy to remain due to the fact that suction force at the position far away from the dust suction opening is dispersed are solved.

The invention belongs to the technical field of cigarette making equipment, and discloses a quantitative bead planting system which comprises a feeding assembly, a conveying assembly, an adding assembly and a lifting adjusting frame, a lifting plate is vertically arranged in the lifting adjusting frame in a sliding mode, a lifting air cylinder is fixedly installed at the bottom of the lifting adjusting frame, and the lifting plate is driven by the lifting air cylinder to ascend and descend; in order to solve the problem that blasting beads are prone to deviation due to centrifugal force during high-speed conveying in existing equipment, an inclined adsorption hole structure is innovatively designed on a bead planting disc of the conveying assembly, when the blasting beads are conveyed to the discharging position, the blasting beads are blown out through inclined adsorption holes under positive pressure, the airflow direction of the blasting beads can offset inertia and centrifugal force of the blasting beads, and the blasting beads are conveyed to the discharging position. By means of the technical scheme, the blasting beads vertically fall in the mode of similar free falling motion and accurately fall into the adding hopper of the adding assembly, the problem of blasting bead falling deviation is effectively avoided, the blasting bead implanting accuracy and the production rate can be remarkably improved, and the rate of unqualified products is remarkably reduced while the efficiency is improved.

The utility model discloses a precision assembly cleaning module for consumer electronics, which relates to the technical field of cleaning equipment and comprises a base, a rolling shaft is fixedly arranged in the base, a first circular ring is rotatably arranged on the rolling shaft, a second circular ring is arranged below the first circular ring in a threaded manner, two rotating arms are fixedly arranged on the second circular ring, and first nozzles are fixedly arranged on the rotating arms. A lower shell is fixedly arranged at the lower end of the second circular ring, and two second nozzles are fixedly arranged on the lower shell. High-pressure air is sprayed out of the nozzles, floating ash and foreign matter on the surface of a product needing to be cleaned can be removed under the condition that the product is not contacted, the first nozzle and the second nozzle are different in rotating radius, two different air rails are formed, the cleaning area of the device is enlarged, the ion air nozzle blows ion air, and the cleaning effect is improved. And the flange plate is externally connected with a dust suction device, the floating dust and the foreign matter on the surface of the product are sucked, and the surface of the product is thoroughly cleaned.

A range hood main body comprises an air inlet and an air outlet, and a cold air cavity is communicated between the air inlet and the air outlet. The cold air assembly is arranged in the cold air cavity, the refrigerating unit is connected with the cold air assembly to form a circulating refrigerating loop, and a cooling medium circulates in the circulating refrigerating loop and is used for cooling airflow fed from the air inlet into cold air and blowing the cold air out of the air outlet; and the heat dissipation unit is arranged close to the circulating refrigeration loop and is used for enabling the temperature of the cooling medium in the circulating refrigeration loop to be lower than the set temperature. According to the range hood, the device capable of blowing out cold air is additionally arranged in the internal space of the range hood, the space of a kitchen is not additionally occupied, the added value of an existing range hood is increased, meanwhile, cool air is blown to a user at the proper height where the range hood is located, good cooking experience is provided for the user, and the problem that the cooking temperature of the kitchen is high in summer is solved.