53results about How to "Achieve clearing effect" patented technology

The invention discloses a polishing device for machine manufacturing. The polishing device for machine manufacturing comprises a base. A first clamping plate and a second clamping plate are separatelyarranged on two sides of the top of the base, a supporting rod is fixedly connected to the left side of the top of the base, a dedusting mechanism is arranged on the left side of the supporting rod,the dedusting mechanism comprises a collecting box, a fan, a telescopic pipe and a suction hood, a slider is slidably connected to the surface of the supporting rod, a first air cylinder is fixedly connected to the bottom of the slider, and a placing box is fixedly connected to the bottom of the first air cylinder. By arranging the base, an effect of supporting the first clamping plate, the secondclamping plate and the supporting rod is achieved. By arranging the first clamping plate and the second clamping plate, a mechanical fixing effect is achieved. By arranging the dedusting mechanism, an effect of removing dust is achieved. By arranging the slider, an effect of driving a polishing disc to move is achieved. The polishing device can remove generated dust, so that a machine is processed conveniently.

The invention relates to the technical field of wardrobes, and discloses a house movable wardrobe capable of preventing moisture and removing smells. The house mobile wardrobe comprises a wardrobe body, a water partitioning plate is fixedly connected to the lower surface of the wardrobe body, universal wheels are fixedly connected to the lower surface of the water partitioning plate, hydraulic cylinders are fixedly connected to the lower surface of the water partitioning plate, anti-slipping pads are fixedly connected to output shafts of the hydraulic cylinders, and a pushing rod is fixedly connected to the right side face of the wardrobe body. By arranging the water partitioning plate on the house mobile wardrobe capable of preventing moisture and removing smells, moisture on the ground or accumulated water on the ground is prevented from permeating into the wardrobe body, and moisture prevention is conducted on the interior of the wardrobe body; by arranging drying boxes and a heating lamp tube, moisture in air inside the wardrobe body is absorbed and evaporated, and clothes in the wardrobe body are prevented from being wetted; by further forming ventilating holes and arrangingan exhaust fan, flowing of the air inside the wardrobe body is accelerated, wet air inside the wardrobe body is discharged, and the effect of preventing moisture is realized.

The invention relates to the technical field of a pet ball cleaning device, and discloses a cleaning device for a rubber ball for a pet dog. The cleaning device comprises a shell, and a transverse bearing plate is fixedly connected between the inner walls of the left and right sides of the shell. Transverse movable through grooves are separately formed in both sides of the upper surface of the transverse bearing plate, and the inner sides of the two transverse movable through grooves are movably connected with transverse connection movable blocks correspondingly. A transverse circulation driving mechanism is fixedly connected to the intermediate position of the inner side bottom of the shell, and the transverse circulation driving mechanism and the two transverse connection movable blocksare connected. According to the cleaning device for the rubber ball for the pet dog, a traditional way of cleaning a rubber ball body by manual use of a brush by manpower is changed through mutual matching of the shell, the transverse bearing plate, the transverse circulation driving mechanism, positioning movable clamp mechanisms, a pressure adjustment mechanism, a small double-axis motor and vertical guide slide rails, and meanwhile, foreign matter in dog mark grooves of the surface of the rubber ball body is effectively removed.

The invention discloses a plate punching die capable of preventing burrs from appearing. The plate punching die comprises a puncher pin. A plate is arranged at the bottom of the puncher pin. A blanking die is arranged on the side face of the plate. The bottom of the blanking die is in sliding connection with a supporting block. An extrusion rod is arranged on the side face of the blanking die in apenetrating manner. A pressure sensitive switch is fixedly connected to the side, close to the die core, of the extrusion rod. A centrifugal rod is in sliding connection in a centrifugal pipe. A triangular scraping rod is rotationally connected to the side, away from the axis, of the centrifugal rod. The side face of the distance adjusting shaft is fixedly connected with an adjusting pipe. An impact rod is in sliding connection in the adjusting pipe. A lever is arranged on the side, away from the axis, of the adjusting shaft. The top of the lever is fixedly connected with a one-way clamping plate. According to the plate punching die capable of preventing burrs from appearing, through cooperative use of the pressure sensitive switch and the triangular scraping rod, the effect that when a gap appears between the puncher pin and the blanking die, appearing burrs are removed before cooling is achieved.

The invention relates to the technical field of pet ball cleaning facilities, and discloses a rubber ball cleaning facility and method for a pet dog. A shell is included. A transverse bearing plate isfixedly connected between the inner walls of the left side and the right side of the shell. Transverse movable through grooves are formed in the two sides of the upper surface of the transverse bearing plate. The inner sides of the two transverse movable through grooves are movably connected with transverse connecting movable blocks. The middle position of the bottom of the inner side of the shell is fixedly connected with a transverse cyclic drive mechanism. The transverse cyclic drive mechanism is connected with the two transverse connecting movable blocks. Through mutual cooperation of theshell, the transverse bearing plate, the transverse cyclic drive mechanism, a positioning movable clamp mechanism, a pressure adjusting mechanism, a small dual-axis motor and a vertical guiding sliding rail, the manner of rubber ball cleaning through manpower manual usage of a brush is changed, and meanwhile foreign matter in a tooth mark groove in the surface of a rubber ball is effectively removed.

The invention discloses a street lamp capable of converting mosquitoes into a greening fertilizer. The street lamp comprises a lamp pole, a power cavity is formed in the lamp pole, a cleaning work cavity is formed in the lower side of the power cavity, a mosquito killing cavity which is communicated with the cleaning work cavity and is provided with an opening penetrating through the left side andthe right side is formed in the lower side of the cleaning work cavity, and a mosquito collecting cavity which is communicated with the mosquito killing cavity and is located in the lamp pole is formed in the lower side of the mosquito killing cavity. Under the action of a motor, cleaning work of dead mosquitoes adhered to the surface of a power grid is completed through cooperation of a cleaningcam and a compression spring, the effect of removing mosquito corpses on the surface of a mosquito attracting lamp is achieved under sliding of a lamp cleaning block, and when a gravity sensor detects that the weight of collected mosquitoes reaches a certain value, the effect of automatically generating a greening fertilizer is achieved by mixing the mosquito corpses with decaying liquid and under cooperation of broken blades, and therefore, the greening soil near the device is fertilized.

The invention discloses waste gas treatment equipment. The equipment comprises an exhaust cover, a liquid inlet, a purification pipe, a liquid outlet, a base and an air inlet, the exhaust cover is embedded and fixed at the upper end of the purification pipe, the liquid inlet is formed in the upper end of the side wall of the purification pipe, the liquid outlet is fixed at the lower end of the side wall of the purification pipe, the air inlet is communicated with the interior of the purification pipe, the purification pipe is welded with the base, the purification mechanism in the purificationpipe can be used for removing solid particles adhered to the surface of the purification pipe during waste gas purification, and a piston can push the air pressure in a sliding cavity to extrude theabsorption liquid in a liquid storage pipe out of a liquid attachment plate so that the effect of removing solid particles adhering to the upper surface of the liquid attachment plate can be achieved,the absorption liquid in a liquid absorption block can be extruded out through thrust generated by an absorption liquid sprayed out of the liquid storage pipe on the extrusion plate on the liquid attachment plate, and therefore the solid particles with the upper surface of the liquid bearing surface not completely removed can be flushed.

The invention provides rubber cleaning equipment for an airport runway. The equipment comprises a vehicle body, a control center, an ion generator, an air separator and a generator installed in the vehicle body, and an ion jet injection device installed at the bottom end of the vehicle body. The control center is used for controlling the operation of the ion generator, the air separator and the ion jet injection device; the ion generator is matched with the air separator to generate high-energy ions; the ion jet injection device is connected with the ion generator to inject out high-energy ions; the generator supplies power to the whole equipment; the generated high-activity plasma-state oxygen and rubber on the road surface are subjected to a violent chemical reaction which is mainly oxidation reaction; with oxidation and gasification of an accumulated rubber layer, rubber is rapidly stripped from a pavement to achieve a clearing effect, then cleaning work is carried out through accessory equipment of equipment, clearing can be completed, the pavement cannot be damaged, pollution to the environment cannot be caused, there is no residue, and rubber cleaning equipment is clean, environmentally friendly and efficient.

The invention provides a water surface floating straw removal machine during hand-held paddy field seedling planting. The machine comprises a floating air cushion, the surface of the floating air cushion is provided with a supporting plate, the surface of the supporting plate is welded with a curved outer shell, an outer lifting removing mechanism penetrates through the curved outer shell and thesupporting plate, an inner lifting removing mechanism penetrates through the curved outer shell and the supporting plate, and the machine relates to the agricultural field. According to the water surface floating straw removal machine during hand-held paddy field seedling planting, an inner water flow pressure plate is arranged on the concave surface of a U-shaped floating air cushion and is located below a floating grass clearing hook, the inner water flow pressure plate follows the forward direction to press the water surface downwards, and the straw around flows along the water flow to thebottom of the floating grass clearing hook to provide the convenience for the floating grass clearing hook to hook the straw, thereby effectively solving the problems that the floating straw affects the uniform fertilization, and the planting of seedlings is inconvenient.

The invention provides a conveniently-used sewage treatment method, and relates to the field of sewage treatment. A conveniently-used sewage treatment system comprises a water collecting tank, the topof the water collecting tank is fixedly connected with a fixed box, the bottom of the inner wall of the fixed box is fixedly connected with a first motor, the output end of the first motor is fixedlyconnected with a first roller wheel, a sleeve is inlaid in the bottom of the fixed box, and two sides of the inner wall of the water collecting tank are fixedly connected through fixed plates. A wormis driven to rotate through the first roller wheel, a second roller wheel and a pull belt under the rotation of the first motor arranged in the fixed box arranged at the top of the water collecting tank, and a threaded rod is driven to rotate through the cooperation of the rotation of the worm with the rotation of a worm wheel, so the problem of inconvenience in dismounting of a filter screen during the use of the sewage treatment system is solved.

The invention discloses a scenic spot introduction display device for agricultural sightseeing tour. The scenic spot introduction display device structurally comprises an automatic and rapid display mechanism, a display board, two fixed frames, a connecting seat and self-locking castors, wherein the cross sections of the automatic and rapid display mechanism and the display board are respectivelyof a rectangular structure; the back end of the display board is fixedly buckled at the surface of the front end of the automatic and rapid display mechanism, and forms an integral forming structure with the automatic and rapid display mechanism; the two fixed frames are horizontally welded at both sides of the lower end of the automatic and rapid display mechanism. The scenic spot introduction display device has the advantages that the protection effect on a display cloth is improved; under the cooperation function of a drive motor, a screw rod, an adjusting rod and a hollow groove, the height can be adjusted according to the use and display requirements, and the comfortability in tour is higher; when the display cloth is cleaned, the effect of clearing dust near the display cloth in theproduct display process can be realized under the cooperation functions of the bearing block, a second motor, a rotary shaft and fan blades, the product is further protected, the quality of the display cloth is improved, and the troublesome of a worker is reduced.

The invention discloses a PCB detection jig machining device and a using method thereof, and belongs to the technical field of PCBs, the PCB detection jig machining device comprises a bottom plate and side plates, the side plates are arranged on the left side and the right side of the upper surface of the bottom plate, the left side plate is fixedly connected to the upper surface of the bottom plate, the lower surface of the right side plate is attached to the upper surface of the bottom plate, the lower surface of the right side plate is fixedly connected with an adjusting mechanism used for adjusting the position of the side plate and indirectly controlling the positioning mechanism to adjust, and the adjusting mechanism is arranged in the bottom plate. According to the invention, the detection mechanism is arranged, pressing blocks are controlled to drive a second sliding rod to move downwards, the second sliding rod drives a pressing rod to move downwards through a pressing plate, the pressing rod drives a piston block to move downwards, the piston block extrudes air in a second air cylinder, and a detection head can detect a connection point; in the detection process, multiple different pressing blocks are pressed, and a plurality of different detection heads move downwards and are matched with one another to achieve a good detection effect on different PCBs, so that normal use of people is greatly facilitated.

The invention discloses a steel band annealing and cooling device with a dustproof function. The device comprises a housing, wherein a dust collection flexible plate is placed at the bottom of an inner cavity of the housing; a fixed net plate is fixedly connected with an inner wall of the housing; and a steel band plate is placed at the top of the fixed net plate. According to the steel band annealing and cooling device with a good dustproof effect, with the adoption of the housing in combination with the dust collection flexible plate, the fixed net plate, a cold air nozzle, a second casing,a first casing, slide rods, a push plate, compression springs and a dust absorption plate, external refrigeration equipment provides cold air to the cold air nozzle; the cold air sprayed from the coldair nozzle is used for driving the air to flow to agitate dust on the steel band plate and drive the dust to float with the air; a few amount of dust passes through the fixed net plate and is absorbed by the dust collection flexible plate; the push plate is pushed due to an atmospheric pressure principle; the dust absorption plate absorbs the residual dust; and therefore, the device achieves effects of cooling and removal of the dust from the surface of a steel band.

The invention discloses a building steel calendering mechanism, comprising a platform. A rebar reel, a processing box and a cutting-off box are fixedly connected to the top of the platform sequentially from left to right; a first rotary bar, a second rotary bar and a third rotary bar are movably connected to the back of an inner cavity of the processing box sequentially from left to right. The first rotary bar, the second rotary bar, the third rotary bar, a driven disc, a conveying wheel, a motor, a driving disc, a driving wheel, a first rolling wheel, a driven wheel, an upper derusting wheel,a cross beam, a second rolling wheel, a third rolling wheel, a lower derusting wheel, a hydraulic bar, a cutter and a base are provided herein; therefore, the whole building steel calendering mechanism has high calendering efficiency; the problem is solved that construction progress is affected since service effect of steel material is affected due to the series of problems of existing steel calendering equipment, such as low processing efficiency and unobvious calendering effect.

The invention discloses a sewage suction pipe inner wall cleaning device, and relates to the technical field of municipal equipment. The sewage suction pipe inner wall cleaning device comprises a water pump, the center of the rear side face of the water pump is fixedly connected with a first drainage pipe, the rear end of the circumferential face of the first drainage pipe is provided with threads, the threaded face of the first drainage pipe is in threaded connection with a second drainage pipe, the lower end of the circumferential side face of the second drainage pipe is fixedly connected with a sleeve, the lower end of the inner wall of the sleeve is slidably connected with a sliding pipe, a spring is arranged in the sleeve and the sliding pipe, the lower surface of the sliding pipe is fixedly connected with a first scraping plate, and the lower surface of the first scraping plate is fixedly connected with a first cleaning soft cushion, therefore, the problems that for most existing sewage suction pipe inner wall cleaning modes, a used sewage suction pipe is connected to a tap water pipe opening, then water is discharged to wash the inner wall of the sewage suction pipe through tap water circulation, viscous materials such as excrement sludge have certain viscosity and are not easy to wash down, and consequently poor cleaning effect is caused are solved.

The invention discloses a device for removing pollution particles on the surface of a mask protective film. The device comprises a charge generating device and a charge eliminating device; the charge generating device can generate an air flow with charges; the airflow flows from the charge generating device to the charge eliminating device; the charge eliminating device can eliminate or transfer charges; and the mask protective film surface pollution particle removal device is arranged above a mask plate bearing table. The device can effectively remove particles which cannot be identified by naked eyes, avoids direct contact between gas and the mask protective film, avoids rupture or looseness of the protective film, and prolongs the normal service life of the mask.

The invention discloses a chip removal guide rail. The guide rail comprises a base (1) and a guide rail body (2), the guide rail body (2) is located in the middle of the upper surface of the base (1), multiple chip removal holes (3) are formed in the positions, at the two sides of the guide rail body (2), of the base (1) respectively, the top end of each chip removal hole (3) is provided with a chamfer, and the connection line of the multiple chip removal holes (3) at the same side is not a straight line. According to the chip removal guide rail, the chip removal holes are formed, so that in the guide rail using process, foreign matters can fall down from the chip removal holes, namely the removal effect can be achieved without treating the foreign matters additionally, and the top end of each chip removal hole is provided with the chamfer, therefore when being located at the edges of the chip removal holes, the foreign matters are prone to falling down.

The invention relates to the technical field of rubber compound production equipment, and discloses a stirring device convenient for removing residual rubber compound in the device. The stirring device comprises a box body, a threaded shaft is movably mounted in the box body, the top of a threaded shaft is movably connected with a driving shaft through a coupling, and the top of the driving shaftis fixedly connected with a motor. According to the stirring device convenient for removing the residual rubber compounds in the device, through the rotation of the threaded shaft, under the matchingof a spring, an inserting rod extends out of a through hole under the action of centrifugal force, so that the elastic force of the spring is equal to the centrifugal force generated by rotation, theinserting rod is fixed in the device, and the rubber compound rotates along with the rotation of the threaded shaft; and after stirring is finished, the inserting rod is pulled back into a sleeve through the spring, and in the pulling-back process, the residual rubber compound on the surface of the inserting rod is removed through the through hole, so that the effects of stirring materials in thedevice and cleaning the stirring device are achieved.

The invention discloses river bottom sand removing equipment for a water conservancy project. The river bottom sand removing equipment comprises an installation frame, a sand cylinder used for collecting gravel is fixed to the installation frame in a penetrating mode, and a bucket used for fishing the river bottom gravel is vertically and movably arranged on the front portion of the installation frame. An auger material conveying assembly used for conveying the gravel into the sand cylinder is installed below the installation frame, and the upper portion of the auger material conveying assembly fixedly communicates with a flat conveying piece. When a power structure works, the bucket is driven by an eccentric assembly to vertically move up and down in a reciprocating mode, the river bottomgravel can be fished and removed in cooperation with a continuously-walking sand fishing boat, and the fished gravel on the bucket is conveyed into the flat conveying piece through the sand conveyingassembly driven by the power structure when the bucket moves to the highest stroke point of the bucket; The sand is discharged into the auger material conveying assembly through the flat conveying piece, the power structure drives the auger material conveying assembly to convey the gravel into the sand cylinder, and finally the sand fishing, conveying and removing effects are achieved.

The invention provides a corn silk twisting and removing device capable of removing corn silk for corn processing. The corn silk twisting and removing device comprises side plates and a back plate, and the surfaces of the side plates are fixedly connected with the surface of the back plate. A supporting table is fixedly connected to the surfaces of the side plates, a plurality of corn sorting holes are formed in the surface of the supporting table, one end of each corn sorting hole is fixedly connected with a bag-shaped control ring, and a sorting control bag is fixedly connected to the surface of the supporting table. An encircling frame is fixedly connected to the surface of the supporting plate, and the surface of the encircling frame is trapezoidal. The invention relates to the field of food processing. According to the corn silk twisting and removing device capable of removing the corn silk for corn processing, by improving a corn silk removing structure and regularly controllingthe working track of the corn silk removing structure, the corn silk can be thoroughly removed from the gaps of corn cobs, so that the problems that an ordinary corn silk removing device cannot make large-area contact with corn silk in the gaps of corn kernels on corn cobs, the silk removing force is small, the corn silk is difficult to remove from the gaps, and the working efficiency is low are effectively solved.

The invention discloses a bearing placing rack, relating to the field of selling of bearings. The bearing placing rack comprises a bottom plate, wherein support plates are symmetrically mounted on twosides of the top of the bottom plate, a top plate is fixedly mounted on the tops of the support plates, a machine base and a controller are mounted on the top of the bottom plate and between the support plates in the sequence from left to right, a motor is fixedly mounted on the top of the machine base, a first belt pulley is fixedly mounted on an output shaft of the motor, first bearings are symmetrically arranged on the opposite sides of the support plates, the two first bearings are connected through an arranged rotating rod, one side of the rotating rod is provided with a second belt pulley, and the second belt pulley is in transmission connection with the first belt pulley through a belt. With the bearing placing rack, the problem that after the bearing is placed on a placing table or a rack for a long time, abundant dust covers the bearing, is solved.

The invention discloses an iron pot edge bur automatic treating device used for an iron pot production line. The iron pot edge bur automatic treating device comprises a central guiding rod and a positioning top plate; the central guiding rod is symmetrically and vertically welded on one side of the positioning top plate; the end, which is far away from the positioning top plate, of the central guiding rod is fixedly provided with a positioning end plate; a sleeve rod is connected with one end of a telescopic rod; the telescopic rod is driven to telescope through a power machine, and moving ofa first sliding sleeve is further driven; the first sliding sleeve is linked with a symmetrical moving rod, and finally the symmetrical moving rod is driven to reciprocate; a power source is providedfor moving of a working scraping plate; one end of a hinge rod is connected with a second sliding sleeve; the symmetrical moving rod is movably arranged in the second sliding sleeve; when the power machine drives the first sliding sleeve to move, after the upper end part of the symmetrical moving rod is stressed, the lower end contracts and moves upwards due to a lever effect; the working scrapingplate removes burs on the edge of a pot blank, so that a clearing-off effect is realized.

The invention discloses a dust collecting device for a warehouse. The dust collecting device comprises a box body. A placing box is fixedly connected to the top of an inner cavity of the box body, a fan is fixedly connected to the bottom of the placing box, an air outlet of the fan communicates to the placing box, the air outlet of the fan communicates to a first connecting pipe, second connectingpipes communicate to two sides of the bottom of the first connecting pipe through pipelines, a spray head communicates to the bottom of each second connecting pipe, a connecting plate is arranged atthe bottom of the box body, and a connecting rod is movably connected to the bottom of the connecting plate through a rotary shaft. By arranging the box body, an effect of placing the placing box is achieved. By means of the fan, the first connecting pipe, the second connecting pipes and the spray heads, an effect of eliminating dust is achieved. By means of the placing box, an effect of storing dust is achieved. By means of the connecting plate, an effect of supporting the connecting rod is achieved. The dust collecting device can eliminate dust effectively, so that people can use the warehouse conveniently.

The present invention provides a Helicobacter pylori composite antigen, which is composed of five full-length antigen proteins of urease (UreB), vacuolar cytotoxin (VacA), cytotoxin gene A (CagA), adhesin HpaA and adhesin BabA or partial sequences; the amino acid sequences of the five antigenic proteins are respectively shown in SEQ ID No.1, SEQ ID No.2, SEQ ID No.3, SEQ ID No.4 and SEQ ID No.5. The composite antigen provided by the present invention has higher immunogenicity, and the anti-Hp yolk antibody prepared by the composite antigen has a stronger activity of neutralizing Hp, and can efficiently block the colonization of Hp and inhibit the activity of Hp at the same time. Effectively prevent and treat gastrointestinal diseases caused by Hp infection.

The invention discloses a river bottom sand cleaning device for water conservancy projects, which comprises a mounting frame, on which a sand cylinder for collecting gravel is penetrated and fixed; A bucket for bottom gravel; a winch cage conveying assembly for conveying the gravel to the sand drum is installed under the installation frame, and a flat conveying member is fixedly connected to the upper part of the winch cage conveying assembly; when the power structure is working , with the help of the eccentric component to drive the bucket to reciprocate and vertically move up and down, and cooperate with the continuously walking sand dredger to realize the removal of river bottom gravel. When the scooped gravel moves to the highest point of its stroke, the sand delivery component is driven by the power structure Send the gravel on the bucket into the flat conveying part, and discharge it into the auger conveying assembly through the flat conveying part. The power structure drives the winch cage conveying assembly to send the gravel into the sand cylinder, and finally achieves the removal of sand and sand. Effect.

A tooth exclusion device comprises a tooth exclusion device body which comprises a strip-shaped holding part, wherein an arc-shaped exclusion strip is clamped at each of the upper part and the lower part of the holding part; the strip-shaped strips bend outwards; a sheet-shaped exclusion piece, of which the thickness is 0.1 mm, is embedded in each of the upper part and the lower part of the holding part; a smooth curved body is arranged at the top of each of the sheet-shaped exclusion pieces; the holding part adopts a wooden structure; the exclusion strips are made of high-strength alloy steel. According to the tooth exclusion device, the defects that people have to go to a tooth nursing mechanism once a lot of dirt accumulated in tooth seams is required to be cleaned to cause the fact that the dirt cannot be cleaned in time and the feasibility is not high are effectively avoided.

The invention discloses a degradable cleansing tablet material for a removable denture. The degradable cleansing tablet material is prepared from the following raw materials: dandelion extract, triethyl citrate, polyethylene glycol, polysorbate, polyvinyl pyrrolidone, sodium alginate, xanthan gum, cyclodextrin, hydroxymethyl cellulose, methyl p-hydroxybenzoate, propionyl glycerol monopalmitate, radix puerariae arrow root powder, sodium citrate, sodium pyrophosphate, natrium aceticum, sodium stearyl fumarate, tea extract and quicklime powder. The degradable cleansing tablet material for the removable denture disclosed by the invention is an anti-bacterial stain removal denture cleansing tablet material which is high in cleaning efficiency, quick in disintegration time, cheap in price and elegant in fragrance, and can quickly and effectively remove dirt and bacteria from the removable denture.

Filtering device (1) consists of several filter elements (4) separated from each other which form filter modules (3) and are arrange in a container (2) containing contaminated liquid. The filter modules form a hollow chamber (14) which is connected to the container on one side via a suction opening and closed on the other side by a supporting plate (6). The hollow chamber interacts with a flow member. Preferred Features: The filter modules are supported on rods (8). The flow member is formed as a pump paddle wheel (15) and is connected to a drive shaft (10) via a supporting plate connected to the filter modules.

The invention relates to the technical field of household appliances, and discloses a maintenance device for a household range hood. The maintenance device comprises a main body frame, rotating partsare arranged on the left portion and the right portion of the main body frame, driving wheels are arranged behind the rotating parts, driven wheels are arranged on the left portions of the driving wheels, toothed frames are connected to the lower portions of the driven wheels in a meshing mode, rotating wheels are connected to the lower surfaces of the toothed frames in a meshing mode, toothed plates are connected to the lower surfaces of the rotating wheels in a meshing mode, and elastic oil absorption blocks are fixedly connected to the lower surfaces of the toothed plates. According to themaintenance device, when the rotating parts rotate, the driving wheels are driven to rotate, the toothed plates drive the elastic oil absorption blocks to get close to the lower portion of a filter screen, oil stains on the filter screen are absorbed and cleared in the getting-close process, the elastic oil absorption blocks are extruded together to extrude the absorbed oil stains out and drip theabsorbed oil stains downwards into an oil collection box, after the driven wheels are separated from the toothed frames, the elastic oil absorption blocks are driven to return to the initial positions under the tension of reset springs, and therefore through the structure, the effect of automatically clearing the oil stains on the surface of the filter screen can be achieved.