29results about How to "Guaranteed suction" patented technology

The invention discloses continuous purification equipment for sewage treatment, and relates to the technical field of sewage treatment, the continuous purification equipment comprises a treatment cylinder, the top of the treatment cylinder is provided with a cylinder cover, and the side wall of the treatment cylinder is provided with a mounting rack. Through the arrangement of the baffle, the sealing plate, the L-shaped telescopic plate, the limiting column, the chute, a limiting plate, an adjustable-speed motor, a first bevel gear, a second bevel gear, a connecting shaft and a mounting block, the blockage time of the filtering mechanism is adaptively judged along with the adding amount of a flocculating agent, so that the backwashing frequency of the filtering mechanism is adjusted, manual adjustment is not needed, convenience and rapidness are achieved, and the practicability is high. The device is simple in structure and high in applicability, through the arrangement of the filtering mechanism, automatic overturning for backwashing along with the blocking speed of the first filter plate is achieved, no additional water resource is needed for backwashing, and through the arrangement of the second filter plate, when the first filter plate is overturned for backwashing, the second filter plate can continue to conduct certain filtration; continuous filtration of sewage is ensured, and the sewage treatment working efficiency is improved.

According to the mechanical automatic grabbing device for the assembly line, when the grabbing device conducts grabbing operation, a positioning suction cup composed of a supporting cylinder body, a piston body, a connecting sleeve, a suction cup head and a one-way valve body is used for positioning an object, a jacking spring in the supporting cylinder body acts on the piston body, and the suction cup head is promoted to keep a suction state on the object; a vacuum pump and other pneumatic assemblies do not need to be introduced for pressure reduction of the suction cups so as to ensure that the suction cups have suction force, in the grabbing process, the jacking springs in the supporting cylinder bodies can buffer the force of the clamping plates for grabbing the objects, and the situation that the to-be-clamped objects are damaged when the clamping plates grab the objects is avoided.

The invention relates to the field of feed production, in particular to a rotary feed production sorting device for animal husbandry, and solves the problems that the screening progress is affected due to the fact that existing equipment needs to be shut down when screening holes of the existing equipment are blocked, and flying dust can be generated in the screening process to pollute the workshop environment. A polygonal roller which is obliquely arranged is rotationally connected to the frame body, a discharging opening is formed in the downwards-inclined end of the polygonal roller, and a plurality of sieve plates which can slide in the radial direction of the polygonal roller are arranged on the circumferential surface of the polygonal roller. According to the feed screening device, the polygonal roller and a first wind wheel and a second wind wheel of the dust removal assembly can be rotated through the driving assembly, in the rotating process of the polygonal roller and a screen plate, feed can roll in the polygonal roller, the feed can be screened through the screen plate, and in the screening process, dust mixed in the feed can be raised; and the dust can be collected through the dust removal assembly and conveyed to a designated position, and dust raising in a workshop is avoided.

The utility model relates to a bottom air suction chamber for a coating production line. The bottom air suction chamber comprises a shell, a high-pressure box fixed at the upper end of the shell, a vortex plate mounted in the high-pressure box, a filter box mounted at the lower end of the vortex plate, an air inlet pipe fixed at the lower end of the high-pressure box and an exhaust mechanism fixed on the side surface of the air inlet pipe, vortex can be generated at the air inlet through the specially designed vortex plate, the pressure intensity is reduced, and the entrainment effect is enhanced. Meanwhile, the air suction chamber is matched with the high-pressure box, the high-pressure box can eject high-pressure jet flow, surrounding fluid can be continuously drawn into the jet flow under the entrainment action of the jet flow, and as the internal pressure of the jet flow is smaller than the external pressure, air tends to move inwards at the top end of the jet flow and at the position where air energy is insufficient, and is sucked into the air suction chamber; by means of the design, air flow on the surface of the vortex plate can be accelerated, coating attached to the surface of the vortex plate is reduced, and meanwhile the air suction efficiency of the device can be greatly improved.

The utility model provides an anti-collision suction nozzle device, belongs to the technical field of semiconductor packaging, and solves the problems that in the prior art, when a suction nozzle is pressed down to adsorb a semiconductor, equipment is still in conveying production, so that the suction nozzle and the equipment are rubbed, the suction nozzle is broken, and the utilization rate and the production efficiency of the equipment are influenced. The number of the supporting columns is four, the connecting rods are installed at the upper ends of the supporting columns, the number of the connecting rods is two, the first sliding rails are installed at the upper ends of the connecting rods through bolts, the sliding plate is installed on the two first sliding rails, the sliding plate slides on the two first sliding rails, and the motor is installed on the sliding plate through bolts; the third hydraulic rod is controlled to extend to enable the piston rod to press the movable seat, and when the lower end of the piston rod blocks the photoelectric sensor in the mounting groove of the movable seat, a conveying driving motor of the production line stops rotating, so that a suction nozzle can conveniently adsorb a semiconductor, the phenomenon of machine collision is avoided, the consumption of the suction nozzle is reduced, and the production efficiency is improved. The equipment utilization rate and the production efficiency are improved.

The invention relates to the field of dust removal equipment, in particular to a self-cleaning dust removal purifier for furniture processing. According to the technical scheme, the self-cleaning dust removal purifier for furniture processing comprises a support, a dust remover, a suction pump, a communicating assembly and the like; the bracket is connected with a dust remover; a suction pump is arranged on the left of the bracket; the suction pump is connected with the dust remover through the communicating assembly. The dust is intercepted by replacing the area where the dust is not adhered to the filter cloth between the air suction pipe and the suction pipe, the suction force is prevented from being influenced, meanwhile, the area where the dust is adhered to the filter cloth rotates to the air blowing pipe, the air blowing pipe blows off the dust on the filter cloth, the filter cloth can be cleaned without interrupting the suction operation, the continuity of the suction work is ensured, and the efficiency is improved. The impurity discharging opening is sealed through the sealing plate, the air outlet blows air downwards, dust drifting in the discharging hopper is blown into the collecting box, and the situation that when the collecting box is replaced, the dust drifting in the discharging hopper and the collecting box overflows outwards, and consequently the working environment is disordered is avoided.

The present application relates to the technical field of aluminum profile film thickness detection equipment, and in particular to an aluminum profile film thickness detection device and method. The aluminum profile film thickness detection device includes an eddy current thickness gauge, and also includes a connecting rod, a lateral adjustment device, a vertical adjustment device, a detection device and a thickness probe. Vertical rods are provided below the two ends of the connecting rod; the lateral adjustment device is provided on the connecting rod, and is used to adjust the lateral position of the thickness probe; the vertical adjustment device is provided below the lateral adjustment device, and is used to adjust the vertical position of the thickness probe; the detection device is used to fix the thickness probe; through the lateral adjustment device and the vertical adjustment device, the eddy current thickness gauge can maintain vertical measurement with the aluminum profile film every time. By arranging a suction cup in the base, it is more stable when using the eddy current thickness gauge for measurement. By using a buffer device, the pressure sensor is used to measure the pressure before the thickness probe of the eddy current thickness gauge contacts the aluminum profile film, ensuring that the thickness probe will not be compressed.

This utility model discloses a vacuum cleaner and a cleaning system. The vacuum cleaner includes a main body and a suction motor capable of generating suction airflow. A dust cup assembly is used to separate the suction airflow carrying dirt and store at least a portion of the separated dirt. The dust cup assembly includes a cup body defining a first space and a filter assembly at least partially disposed within the first space, the filter assembly including a first filter and a second filter. A dust scraping assembly includes a first dust scraping device for scraping off at least a portion of the dust adhering to the first filter and a second dust scraping device for scraping off at least a portion of the dust adhering to the second filter. A driving device is used to simultaneously drive the first and second dust scraping devices. By adding a dust scraping assembly to simultaneously scrape off the adhering dust from the first and second filters, the suction power can be effectively maintained within a normal range to stabilize cleaning efficiency.

An accumulated water treatment device for highway maintenance relates to the technical field of highway maintenance tools and comprises a vertically arranged negative pressure suction pipe, a retaining net is fixedly connected in a lower port of the negative pressure suction pipe, a particulate matter collecting cover covering the lower port of the negative pressure suction pipe is fixedly connected on the outer wall of the negative pressure suction pipe, and a chassis is detachably mounted at the lower end of the particulate matter collecting cover. The problems that in the prior art, due to the fact that a device is limited by the size of maintenance equipment, accumulated water in a large-size pit can only be cleaned, when the size of the pit is small, the accumulated water in the pit cannot be cleaned, and the use range is narrowed are solved; the problems that when an existing maintenance device is used, the influence of disintegrating slag in a pit is limited, an accumulated water cleaning opening is prone to being blocked, frequent maintenance is needed, and the road maintenance efficiency is reduced are solved.

The present invention belongs to medical equipment technology, and specifically relates to an anti-blocking drainage device for treating thoracic surgical diseases, including a frame, a screening box and a shell, one side of the shell is detachably connected with a drainage pipe, and one end of the drainage pipe is also provided with a connector; an anti-blocking mechanism, the anti-blocking mechanism is arranged inside the drainage pipe; a driving part, the driving part is arranged on one side of the screening box, and the driving part drives the anti-blocking mechanism through a transmission mechanism; and the anti-blocking mechanism includes a round rod, a crushing part and a cleaning part, the round rod is plugged into the shell, and the crushing part and the cleaning part are both arranged on the round rod. The present invention can crush the impurities in the effusion by setting the anti-blocking mechanism to avoid accumulation or blockage caused by the excessive volume of the impurities; and can scrape off the pus, mucus and flocculent with high viscosity adhered to the inner wall of the drainage pipe to prevent the long-term accumulation of mucus from causing pipe blockage.

The application provides a dust collecting device, a cleaning device and a cleaning system. The dust collecting device comprises a dust cup, an air inlet, an air outlet and an ash outlet, the ash outlet is provided with an openable and closable cover plate; a dust-gas separation member is arranged in the inner cavity of the dust cup, the dust-gas separation member separates the inner cavity of the dust cup into an ash storage cavity and a cyclone cavity, the dust-gas separation member is provided with an ash discharge opening for connecting the ash storage cavity and the cyclone cavity, the cyclone cavity is arranged in a spaced manner with the air inlet and is connected with the air inlet; a filter assembly is arranged in the dust cup, the filter assembly comprises a filter cylinder extending into the cyclone cavity, so that the airflow entering the cyclone cavity is subjected to dust-gas separation. The dust collecting device can reduce the risk of hair foreign matter blockage in the cyclone cavity and ensure the suction force of the cleaning device.

A recycling method and system of an image sensor, the image sensor is obtained in a module level packaging manner, the image sensor comprises a support, a glass sheet, an adhesive layer and a die, the glass sheet is connected to the support, the die is connected to the support through the adhesive layer, the support has an opening, the opening is used for exposing a photosensitive surface of the die to the glass sheet, the recycling method comprises: heating the image sensor to soften the adhesive layer; after the adhesive layer is softened, the die is peeled off from the image sensor, so that the die is separated from the support; foreign matters adhered to the die are removed, and the die is recycled. The above scheme can improve the repair yield of the image sensor recycling, and improve the flexibility of the recycled die in subsequent production.

A rotatable chip collecting device comprises a recycling machine, a y arm and a milling spindle, and the recycling machine is used for providing suction force and storing recycled chips; a milling main shaft capable of rotating universally is arranged on the y arm; the device is characterized in that a rotatable base is arranged on the y arm; the rotatable base is arranged on one side of the milling main shaft; the rotation angle of the rotatable base is 360 degrees; a recycling pipe is arranged at the input end of the recycling machine; and the input end of the recovery pipe is fixedly connected to the rotatable base. The coverage of suction force of the milling main shaft can be ensured at any angle; the problem that in the prior art, due to the fact that the suction angle of a chip suction cover is fixed, the chip recycling effect is poor is solved.

The utility model relates to the technical field of vacuum suction tools, in particular to a pressure maintaining suction tool system for a silicon crystal bar, which comprises a mounting plate and a plurality of suction cups fixed on the bottom surface of the mounting plate, a plurality of air passages are arranged in the mounting plate, the air passages are communicated with the suction cups in a one-to-one manner, each air passage is provided with a vacuum port and a vacuum breaking port, and the vacuum ports are communicated with the suction cups in a one-to-one manner. The vacuum port is connected with a vacuum generator through a one-way valve, a check valve is arranged in the vacuum port, and the vacuum breaking port of each air channel is connected with a vacuum breaking electromagnetic valve. The device can adapt to adsorption work of silicon crystal bars with various lengths, is good in universality, can achieve long-time pressure maintaining under the condition of sudden power failure, and reduces the possibility that the silicon crystal bars fall off.

The application belongs to the technical field of cleaning robot devices, and particularly relates to a filtering dust collecting device and a cleaning robot. The filtering dust collecting device comprises a shell, an inner shell component, a first filtering structure, a second filtering structure and a third filtering structure. In the filtering dust collecting device, the airflow carrying the debris garbage and dust is filtered and separated layer by layer through the second filtering structure, the first filtering structure and the third filtering structure in sequence, so that the debris garbage and dust sucked along with the airflow are more completely intercepted in the filtering dust collecting device, and the debris garbage and dust are filtered and separated in layers, which cannot easily cause the filtering structure to be blocked. Therefore, the application of the technical scheme can solve the problem that the HEPA filter screen in the current cleaning robot is easily blocked by dust or debris garbage, the suction force of the cleaning robot is weakened, and the working effect of dust cleaning is affected when cleaning work is performed.

The utility model discloses a positioning mechanism and a machining device. The positioning mechanism comprises a base, a pressing assembly and a clamping assembly. The base comprises a base plate and a bearing piece arranged on the base plate, and the bearing piece is matched with a product to be positioned; the pressing assembly is arranged on the base plate and comprises a pressing piece located above the bearing piece, and the pressing piece can move close to the bearing piece to press the product; the clamping assembly comprises two clamping driving pieces and two clamping adsorption pieces, the two clamping driving pieces are arranged on the base plate and located on the two opposite sides of the bearing piece correspondingly, and the two clamping adsorption pieces are connected with the corresponding clamping driving pieces correspondingly. The two clamping driving pieces are used for driving the corresponding clamping adsorption pieces to move close to the bearing piece so as to clamp and adsorb the product. According to the positioning mechanism, the product is positioned, the outer side face and the inner cavity of the product are machined, the situation that the product is deformed due to the fact that the inner cavity of the product is machined can be avoided by adsorbing the product, and the machining yield is increased.

The utility model provides a dust collecting device, cleaning equipment and a cleaning system, the dust collecting device comprises a dust cup, the dust cup is provided with an air inlet, an air outlet and a dust outlet, and a cover plate capable of being opened and closed is arranged at the dust outlet; the dust-gas separation part is arranged in an inner cavity of the dust cup, the dust-gas separation part divides the inner cavity of the dust cup into a dust storage cavity and a cyclone cavity, the dust-gas separation part is provided with a dust throwing opening used for communicating the dust storage cavity with the cyclone cavity, the cyclone cavity is communicated with the air inlet, the bottom of the dust-gas separation part is provided with a flexible plugging part, and the flexible plugging part is provided with a dust discharging opening communicated with the cyclone cavity; the filtering assembly is arranged in the dust cup, and the filtering assembly comprises a filtering cylinder extending into the cyclone cavity; when the cleaning equipment is used for cleaning, the cover plate is matched with the flexible blocking piece in a sealing mode to seal the ash discharging opening, and when the dust collecting device is used for self-cleaning, the cover plate is separated from the flexible blocking piece to open the ash discharging opening and the ash outlet. According to the dust collecting device, hair foreign matter in the cyclone cavity can be removed, and the suction force of cleaning equipment is guaranteed.

The utility model discloses vacuum pumping equipment for vacuum preloading soft foundation treatment, which comprises a box body, a left side plate arranged on the box body, a vacuum filter fixedly arranged on the left side plate, a pipe joint arranged on the vacuum filter, an input pipe arranged at the output end of the vacuum filter, a three-way piece arranged on the input pipe, and a vacuum pump arranged on the three-way piece, a buffer storage tank inlet pipe is installed at one end of the three-way piece, a buffer storage tank, an electric cabinet, a vacuum pump, a gas filter and a steel wire pipe are arranged in the box body, the buffer storage tank is transversely arranged, an electric cabinet mounting base, a vacuum pump mounting plate and a gas output pipe are arranged on the buffer storage tank, and the vacuum pump is installed on the vacuum pump mounting plate; a suction connector pipe is arranged on the vacuum pump, the steel wire pipe is connected with the gas filter, and a bent connector is arranged between the steel wire pipe and the gas output pipe. The vacuum pumping device has the advantages that the situation that the interior of the vacuum pumping device is stuck and damaged is avoided, gas is buffered and filtered, the vacuum degree is improved, and pumping power is kept.

The utility model belongs to the technical field of indoor exhaust, and particularly relates to a nitrogen controlled atmosphere forced exhaust device which comprises an exhaust external unit. The side wall of the exhaust outer unit communicates with an air guide pipe. The middle part of the air guide pipe is communicated with a plurality of first branch pipes; the middle part of the first branch pipe is in sliding connection with an iron sliding barrel; a plurality of vent grooves are formed in the middle of the iron sliding cylinder; a limiting block is fixedly connected to the middle of the iron sliding barrel. The top of the first branch pipe is in sliding connection with a sliding seat; the inner side wall of the sliding seat is fixedly connected with a fixed plate; the bottom of the fixed plate is fixedly connected with an electric cylinder; by means of the structure, residual air at the bottom of the granary can be gradually exhausted, nitrogen can be evenly distributed in the internal space of the granary, meanwhile, only one air inlet is reserved, suction force is guaranteed, air exhausting can be rapidly completed in an inspired area, and the air exhausting efficiency is improved. And the situation that due to the fact that suction force of the multiple air inlets is not uniform, exhaust is completed in part of the areas, and more air remains in part of the areas is avoided.

The utility model provides a dust collecting device, cleaning equipment and a cleaning system, and the dust collecting device comprises a dust cup which is provided with an air inlet, an air outlet and a dust outlet which can be opened and closed; the dust-gas separation part is arranged in an inner cavity of the dust cup, the dust-gas separation part divides the inner cavity of the dust cup into a dust storage cavity and a cyclone cavity, the dust-gas separation part is provided with a dust throwing opening used for communicating the dust storage cavity with the cyclone cavity, and the cyclone cavity is communicated with the air inlet; the filtering assembly is arranged in the dust cup, the filtering assembly comprises a filtering cylinder extending into the cyclone cavity so that dust and air separation can be conducted on air flow entering the cyclone cavity, and at least part of the structure of the filtering cylinder can be deformed; the ash outlet is suitable for being connected with a cleaning base station, and when the ash outlet is connected with the cleaning base station, the filter cartridge is suitable for deforming under the airflow driving effect of at least one of the cleaning base station and the cleaning equipment. According to the dust collecting device, hair foreign matter in the cyclone cavity can be removed, filtering holes are prevented from being blocked, and the suction force of cleaning equipment is guaranteed.

The utility model discloses a novel integrated firewood stove structure and relates to the technical field of integrated firewood stoves. The firewood stove comprises a stove shell, a firewood cooking bench arranged on the top surface of the stove shell, a range hood fixed in the stove shell, and a flue main body connected between a hearth smoke outlet of the firewood cooking bench and an air inlet of the range hood, and a valve structure for controlling the flow area of the flue main body is arranged on the flow channel section of the flue main body. When in use, the effective flow area of the flue main body is changed and the flow of the flue main body is controlled by controlling the valve structure, so that the flow of air entering a hearth can be controlled while the suction force of a range hood to the interior of the hearth is ensured, and the purpose of controlling the firepower of the firewood hearth is achieved.

The invention discloses a welding device for electronic access control assembly with a correction effect, and the invention relates to the field of welding technology. The electric soldering iron of the invention is set to a cone shape, the end of the electric soldering iron is rotatably connected to a driving component through a rotating rod, the driving component is fixedly connected to a rotating component on the side away from the electric soldering iron, the surface of the rotating component is fixedly connected to the inner side of the base, the fixed component has an air suction structure for adsorbing and fixing the pad, the fixed component is slidably connected to the inner side of the base, the air suction component has a driving structure for driving the fixed component to generate suction, the air suction component is arranged inside the shell, and the outer side of the air suction component is slidably connected to the inner side of the shell, the angle of the electric soldering iron is adjustable, and all electronic components on the pad can be welded under the premise of one-time fixation, and at the same time, the pad placed parallel to the base, the tin liquid can fully enter the welding position under the action of gravity to avoid incomplete welding.

The invention relates to the technical field of grid-connected inverters, and discloses a direct-current micro-grid grid-connected inverter which comprises a grid-connected inverter body and further comprises a dust collection component, the dust collection component comprises a fixing frame, the top of the fixing frame is fixedly connected with the bottom of the grid-connected inverter body, the bottom of the fixing frame is fixedly connected with a motor, and the motor is fixedly connected with the dust collection component. The output end of the motor is fixedly connected with a fan blade frame, and the bottom of the fan blade frame is rotationally connected with a cylindrical frame. The dust collection component is arranged on the surface of the grid-connected inverter, dust in the grid-connected inverter is adsorbed and collected through the dust collection component, it is avoided that dust enters the grid-connected inverter and then is accumulated in the grid-connected inverter, heat dissipation is affected, the dust collection component pushes the separation component to rotate during rotation, the collected dust is treated through the separation component, and the dust collection efficiency is improved. Dust is prevented from being accumulated in the separation part to influence the treatment effect, the separation part drives the exhaust part to perform opening and closing operation during rotation, and gas of the dust collection part is discharged during opening.

The utility model discloses a plastic particle feeding machine which comprises a conveying charging barrel and is characterized in that a dust removal component is arranged on one side of the conveying charging barrel; the dust removal component comprises a bag type dust remover and a main pipeline communicated with the air exhaust end of the bag type dust remover, a plurality of branch pipelines are communicated between the main pipeline and the conveying charging barrel at intervals in the axial direction of the conveying charging barrel, and a shunt pipe is concentrically and rotationally arranged in the main pipeline; a plurality of air holes corresponding to the branch pipelines are formed in the flow dividing pipe in a penetrating mode, the opening directions of the adjacent air holes in the axial direction of the flow dividing pipe are inclined, and a first motor for driving the flow dividing pipe to rotate is arranged at one end of the main pipeline. According to the plastic particle conveying device, the conveying charging barrel is matched with the bag type dust collector, dust removal and suction are conducted on the inner cavity of the conveying charging barrel through the bag type dust collector, then dust removal is conducted while the conveying charging barrel conveys plastic particles, and therefore dust or dust accumulation in the conveying charging barrel is effectively reduced.

The present invention discloses a dust collection and recycling station, which includes a shell, a cyclone separator and a fan assembly, wherein a dust collection channel and a dust collection chamber are defined in the shell, the dust inlet of the dust collection channel can be communicated with a dust box module of a cleaning robot, the dust outlet of the dust collection channel is communicated with the dust collection chamber, a cyclone separator is arranged in the dust collection chamber, a side wall of the cyclone separator is provided with an air inlet, the air inlet is communicated with the dust collection channel and the dust collection chamber, the cyclone separator is used to separate garbage sucked from the dust collection channel into the dust collection chamber, the fan assembly is arranged in the shell, and the fan assembly is communicated with the air outlet of the cyclone separator through the fan channel. The dust collection and recycling station does not need to use a customized garbage bag and has less dust residue inside, thereby improving the user experience.

The utility model provides a dust collecting device, cleaning equipment and a cleaning system, and the dust collecting device comprises a dust cup which is provided with an air inlet, an air outlet and a dust outlet which can be opened and closed; the dust-gas separation part is arranged in an inner cavity of the dust cup, the dust-gas separation part divides the inner cavity of the dust cup into a dust storage cavity and a cyclone cavity, the dust-gas separation part is provided with a dust throwing opening used for communicating the dust storage cavity with the cyclone cavity, the cyclone cavity is communicated with the air inlet, and the bottom of the dust-gas separation part is provided with a dust discharging opening; a flexible plugging piece for opening and closing the ash discharge port is also arranged on the dust-gas separation piece; the filtering assembly is arranged in the dust cup, and the filtering assembly comprises a filtering cylinder extending into the cyclone cavity, so that dust-gas separation is carried out on gas flow entering the cyclone cavity; when the cleaning equipment conducts cleaning, the flexible blocking piece seals the ash discharging opening, and when the dust collecting device conducts self-cleaning, the ash outlet is in an open state, and the flexible blocking piece opens the ash discharging opening. According to the dust collecting device, hair foreign matter in the cyclone cavity can be conveniently removed, and the suction force of cleaning equipment is guaranteed.

The utility model provides a garden fallen leaf cleaning device, which relates to the technical field of garden equipment and comprises a shell, an air inlet pipe and a sound insulation shell. A groove is formed in the rear end of the shell, a first storage box is clamped in the groove in the rear end of the shell, a square hole is formed in the upper side of the shell, wheels are connected to the lower sides of the left end and the right end of the shell, a circular groove is formed in the lower end of the front side of the shell, and a connecting shaft is connected into the circular groove in the lower end of the shell. The front end of the air inlet pipe is connected with a material suction port, a square hole is formed in the lower side of the rear end of the air inlet pipe, the square hole in the lower side of the rear end of the air inlet pipe corresponds to the square hole in the upper side of the shell, and a banister brush is connected to the connecting shaft. The situation that fallen leaves may be left during cleaning is reduced, the cleaning effect is enhanced, and the problem that fallen leaves are left after cleaning of an existing garden fallen leaf cleaning device is solved.

The present invention relates to the technical field of pile drivers, and discloses an electrolyte circulation system and circulation method for high-voltage electric arc rock breaking, comprising a mud pool; an electrolyte pool connected to the mud pool; a pulse generator arranged in an underground pile hole, the pulse generator having a hollow cavity internally constructed, the electrolyte pool being connected to the hollow cavity through a first pipeline, and being used to inject an electrolyte solution into the hollow cavity; an arc drill bit arranged in the underground pile hole and connected to the lower end of the pulse generator; and a submersible pump arranged in the hollow cavity, the submersible pump having an inlet and an outlet, the outlet of the submersible pump being connected to the mud pool through a second pipeline, wherein the pulse generator releases electric energy and transmits the electric energy to the arc drill bit, so that the arc drill bit breaks the surrounding rocks into crushed stones, and the submersible pump sequentially transports the electrolyte solution mixed with crushed rocks back to the mud pool through the inlet of the submersible pump and the second pipeline. The electrolyte circulation system has the advantage of high drilling efficiency.

The utility model discloses a handheld wireless dust collector in the technical field of dust collection devices, which comprises a collection box, a connecting pipe, a mounting box, an air bellow, a support plate, a driving box and a control box, the connecting pipe is inserted into the upper side of the right side wall of the collection box, the mounting box is fixedly connected to the right side of the top of the connecting pipe, and the air bellow is arranged in the mounting box. The air bellow is fixedly connected to the upper side of the left side wall of the collecting box, and the supporting plate is fixedly connected to the left side between the top and the bottom of an inner cavity of the collecting box. The handheld wireless dust collector is reasonable in structural design, the rapid disassembly and assembly function of the wireless dust collector in actual use is achieved, the operation process of the wireless dust collector in actual use is simplified, and the practicability is high. According to the wireless dust collector, the convenience of the wireless dust collector in actual use is improved, excessive air can be conveniently discharged during actual use of the wireless dust collector, the suction force of the wireless dust collector in actual use is ensured, and the effect of the wireless dust collector in actual use is facilitated.