32results about How to "Achieve self-cleaning effect" patented technology

The invention belongs to the technical field of strawberry planting, and discloses a strawberry elevated planting water and fertilizer integrated device which comprises a control box, a gravel filter is installed on the rear side of the control box, the gravel filter is fixedly communicated with a laminated filter, and through cooperation of structures such as an outer pipe, an inner pipe, a spiral groove and an inclined hole, a double-layer drip irrigation pipeline is utilized, and the water and fertilizer integrated device is formed. By rotating the adjusting inner pipe, the drip irrigation point position can be adjusted, long-time drip irrigation at the same point position is avoided, each strawberry plant can uniformly receive fertilizer irrigation, the drip irrigation density can be adjusted, the drip irrigation rate can be adjusted in cooperation with a machine body, the device effectively adapts to the plant growth condition, constant-speed and accurate drip irrigation is achieved, it is ensured that the plant growth environment is basically consistent, and the quality is improved; the double-layer pipeline of the outer pipe and the inner pipe is adopted for drip irrigation, compared with a traditional mode that two single-layer pipes are used, the number of branches is reduced, the water pressure needed by a single planting box can be effectively reduced, more production lines can be increased, and therefore the strawberry planting yield is increased.

The utility model relates to the technical field of plane rotary screen, especially a plane rotary cleaning screen screen device with self-cleaning brush, which comprises a screening and flow changing frame, the left side of the screening and flow changing frame is fixedly connected with an upper plane rotary screen plate and a lower plane rotary screen plate, the top of the upper plane rotary screen plate is fixedly connected with a stable guard frame, the top of the stable guard frame is connected with a locking assembly, the surface of the locking assembly is connected with an upper guard plate, the bottom of the right side of the upper guard plate is fixedly connected with an adjusting frame, a driving motor is fixedly installed on the inner wall of the adjusting frame, the output end of the driving motor is fixedly connected with a threaded rotating rod, the utility model can filter and screen materials by using the stepped screen plate and screen holes, and the driving control moving brush plate is used to comb materials and clean impurities, so that the multiple screening and self-cleaning effect in the process of screening materials by the plane rotary screen is realized.

The utility model belongs to the field of hollow glass, particularly relates to hollow glass with a self-cleaning structure, and aims to solve the problems that when an existing cleaning wiper moves upwards, residual stains are pushed to move upwards, at the moment, the stains are adhered to the inner wall of the top of a frame above the glass, and the cleaning difficulty is increased. A glass main body is fixedly mounted in the frame, and a scraping plate is arranged on the surface of the glass main body; the glass cleaning device further comprises a lifting assembly, the lifting assembly is located in the frame, and the scraping plate can be driven by the lifting assembly to move up and down and scrub the surface of the glass body. According to the self-cleaning device, the self-cleaning function is achieved, the efficient and stable self-cleaning effect is achieved through the design of special materials and a mechanical structure, meanwhile, secondary pollution in the cleaning process is avoided, and the self-cleaning device has high practical value and market prospects.

The utility model discloses a kind of self-cleaning device of polyester yarn carding roller of rotor spinning machine, it is related to spinning machine cleaning technical field, specifically including machine body, the machine body inside rotation is installed with carding roller body, the machine body inside rotation is installed with rotor, the bottom of the inside of machine body is fixedly installed with cleaning assembly, one end of the carding roller body is fixedly installed with driving motor, the cleaning assembly includes motor, the output of the motor is fixedly installed with connecting shaft, a plurality of de-fuzzing teeth are rotatably installed on the connecting shaft, the de-fuzzing tooth one side is fixedly installed with torsion spring, the bottom of the inside of machine body is provided with collection box, and the side wall of collection box is inserted with cleaning plate.The utility model, by motor driving the rotation of de-fuzzing tooth on connecting shaft, utilize the contact of de-fuzzing tooth and carding roller body surface, by de-fuzzing tooth, the lint adhered to the surface of carding roller body is cleaned, realize the self-cleaning effect of spinning machine carding roller.

According to the fluff suction system of the roving frame, air firstly enters a negative pressure box along a negative pressure pipe assembly, then is filtered by a metal filter screen frame and then is discharged from a centrifugal fan, fluff is filtered by the metal filter screen frame, and therefore the fluff in the air is reduced, and the fluff suction system is environmentally friendly; after the batting is sucked and filtered through negative pressure for a period of time, the centrifugal fan is turned off firstly, and in the process that the negative pressure box is moved to the leftmost end between the rails through the power mechanism, the communicating pipe penetrates through the inserting opening, then overcomes the elastic force of the elastic assembly and drives the push plate and the metal filter screen frame to move rightwards; the second sealing ring abuts against the peripheral side of the connecting port of the negative pressure box and the centrifugal fan so as to prevent batting from falling to the connecting port of the negative pressure box and the centrifugal fan, then the negative pressure dust collector is started, the batting collected by the metal filter screen frame in the negative pressure box is sucked into the negative pressure dust collector, and the effect of conveniently cleaning the batting accumulated in the negative pressure box is achieved.

The application relates to a concrete processing equipment and relates to the technical field of building equipment, which comprises a protective shell, a groove column fixedly connected to the outside of a driving assembly, a plurality of stirring blades fixedly connected to the outside of the groove column, a connecting column a fixedly connected to the top of the groove column, a circular ring fixedly connected to the outside of the connecting column a, a plurality of long scrapers fixedly connected to the bottom of the circular ring, a plurality of short scrapers fixedly connected to the outside of the circular ring, and an anti-blocking disc fixedly connected to the lower end of the outside of the groove column. The application has the effects that the groove column is driven to rotate by starting the motor to drive the rotating shaft, the stirring blades and the circular ring are synchronously rotated, the long scrapers and the short scrapers connected to the circular ring are synchronously rotated to clean the inner wall of the stirring barrel and the edge of the barrel opening, grooves are arranged on the outside of the stirring blades and the groove column, the equipment is prevented from being blocked, and the self-cleaning effect is achieved.

This invention relates to the field of wastewater treatment technology, and in particular to a circulating water treatment system and method for a high-density sedimentation tank. The system includes a tank body with a top plate fixedly installed on its upper surface. A mixing zone and an inclined tube sedimentation zone are respectively arranged at the front and rear of the inner side of the tank body. A guide tube is fixedly installed between the mixing zone and the inclined tube sedimentation zone. A drive shaft is installed on the inner side of the guide tube via a drive mechanism. A guide vane is fixedly installed at the lower end of the drive shaft. A defoaming disc is fixedly sleeved on the outer surface of the drive shaft, near the top of the guide tube. This invention achieves efficient defoaming and flow stabilization through rotating defoaming ribs and a lower arched surface, preventing sludge from floating. Simultaneously, it automatically switches the rotation state of the defoaming ribs based on changes in liquid level, performing synchronous defoaming during normal operation and automatic relative rotation for self-cleaning during maintenance. This significantly improves sedimentation efficiency and reduces maintenance difficulty.

The application discloses a power monitoring multifunctional instrument convenient to install, and relates to the technical field of multifunctional instruments.The power monitoring multifunctional instrument convenient to install comprises a protection device.The power monitoring multifunctional instrument convenient to install is characterized in that a cover plate slides in the inner side of a slide rail, so that the cover plate is convenient to disassemble and place components;the monitoring instrument is supported by a supporting plate, so that the monitoring instrument is convenient to fix;the monitoring instrument is extruded by a clamping mechanism, so that the clamping mechanism can fix components;the components are reduced to shake, the components are reduced to shake in the equipment, the stability of the components is improved;air flow is transported into the protection shell by a treatment device, so that the treatment device can ventilate and radiate heat, the temperature of the components in the equipment is prevented from being too high, the components are prevented from malfunctioning, moisture in the air flow is absorbed during the air supply of the treatment device, so that water vapor and dust are reduced to enter, the pollution of the equipment by the outside is reduced, and the equipment is kept to normally operate.

The invention discloses a water conservancy monitoring device for water conservancy facilities, and relates to the technical field of water conservancy monitoring devices. Comprising a base, and a vertical frame is mounted on the base; a mounting frame is mounted on the vertical frame, a control box is mounted on the mounting frame, and a control module and a power supply module are arranged in the control box; a water level detection mechanism is mounted on one side of the vertical frame; a water quality detection mechanism is mounted on the base; the water quality detection mechanism comprises a detection box, a liquid box and a contact type water quality detection assembly are arranged in the detection box, a probe of the contact type water quality detection assembly is located in the liquid box, the liquid box of the detection box is connected with a pumping assembly, the pumping assembly is used for pumping water into the liquid box, and the liquid box is further provided with a drainage pipe. By arranging the water quality detection mechanism, the water quality detection mechanism can work based on a pumping pump, water is pumped through a pumping pipe and conveyed to the liquid tank, water quality information in the water tank is detected through a contact type water quality detection assembly, and the water is discharged through a drainage pipe after detection is completed.

The utility model discloses a lock body surface spraying equipment belongs to lock body processing technical field, include: spraying cabinet, be provided with the notched on the bottom surface inner wall of spraying cabinet, the inner surface of notched is provided with the limit slot, the suspension subassembly is set up in the inner wall of notched, is used for the placement when lock body accessory sprays, in the utility model, through being provided with the suspension subassembly, through the hook, lock body accessory is fixed in the inside of spraying equipment, effectively reduced the block that lock body accessory received in spraying equipment, guaranteed the spraying area of lock body accessory, in the process of spraying, lock body accessory realizes the rotation in spraying equipment under the cooperation of fixed plate, rotary rod, rotary disc and support rod etc. component, also realized autorotation, further guaranteed the spraying evenness of lock body accessory, not only improved the spraying effect of spraying equipment, also improved the spraying quality of lock body accessory.

The utility model discloses a dust removal device for ventilation equipment, which comprises a ventilation pipe, the top end of the ventilation pipe is fixedly communicated with a dust removal cover, the top end of the dust removal cover is fixedly communicated with a filter cover, the inner wall of the filter cover is fixedly provided with an activated carbon adsorption plate, and the inner wall of the dust removal cover is fixedly provided with a filter plate. A through hole is formed in the bottom face of the filter plate, a plurality of fixing plates are fixedly connected to the inner wall of the dust removal cover, the side faces, close to each other, of the fixing plates are jointly and fixedly connected with a driving motor, a driving shaft is fixedly installed at the output end of the driving motor, and a plurality of cleaning brush plates are fixedly connected to the outer surface of the driving shaft; the upper surface of each cleaning brush plate makes contact with the bottom face of the filter plate, and the bottom end of the ventilation pipe fixedly communicates with an ash removal pipe. According to the dust removal device for the ventilation equipment, the self-cleaning effect on the dust removal equipment is achieved, frequent manual disassembly and cleaning are not needed, and the maintenance cost and the labor intensity are reduced.

The utility model discloses a self-cleaning type large-bin cotton mixing machine which comprises a shell, a cotton mixing assembly is arranged at the top of the interior of the shell, a feeding assembly is arranged at the top of the shell, a cleaning assembly is arranged on one side of the shell, a material vibrating assembly is arranged on the side, away from the cotton mixing assembly, of the top of the interior of the shell, and a discharging opening is formed in one side of the shell. The cotton blending assembly comprises a cotton blending bin, a rotary drum, a cotton opening cutter, a cotton doffing cutter and a driving assembly. Through mutual cooperation of the filter bin, the filter screen, the dust collection box, the dust suction pump, the rotary joint and the exhaust hole, when the device processes fibers, airflow can be conveyed into the rotary drum to be sprayed out, and fiber impurities adhered to the outer sides of the rotary drum and the cotton opening cutter are blown away, so that the self-cleaning effect is achieved, friction during rotation of the rotary drum is reduced, and the service life of the device is prolonged. Meanwhile, when airflow enters, impurities screened out of the fibers can be sucked into the filtering bin and are collected in a centralized mode through the dust collecting box, and follow-up cleaning is facilitated.

The utility model belongs to the technical field of reaction kettles, and particularly relates to a dead-zone-free stirring reaction kettle which comprises a reaction kettle body, a first stirring rod and four second stirring rods are rotationally installed in the reaction kettle body, and the four second stirring rods are all located on the peripheral side of the first stirring rod; the driving assembly is positioned in the reaction kettle and is used for driving the stirring rod I and the four stirring rods II to rotate in a reciprocating manner; the annular pipe is fixedly installed at the top of an inner cavity of the reaction kettle, a plurality of nozzles are fixedly installed at the bottom of the annular pipe, a water pump is fixedly installed at the top of the reaction kettle, a connecting pipe is fixedly installed at the water outlet end of the water pump, and the bottom end of the connecting pipe is fixed to the annular pipe; according to the reaction kettle, raw materials in the reaction kettle can be fully stirred without dead angles, and the inner cavity of the reaction kettle can be flushed, so that the self-cleaning effect is achieved, the sealing performance of the feeding pipe can be enhanced, and the situation that the raw materials are leaked and wasted is avoided.

The utility model relates to coffee bean powder grinding device technical field, concretely relates to an adjustable anti -caking coffee bean powder grinding device of grinding granularity, including the shell, the inside fixed setting of shell has the grinding inner box, the inside opening of grinding inner box has the grinding chamber, the top of grinding chamber is opened and has the movable slot. The utility model discloses the setting of one -way exhaust port, realizes the hot gas and steam that generates when grinding can smoothly pass through, avoids the condensation and leads to the lump, wherein the sealing plug and one -way exhaust port are through spring no.

The application belongs to the technical field of solar cells, and particularly relates to a high-transmittance nano coating for transparent conductive oxide (TCO) glass of a perovskite solar cell and a preparation method thereof. The high-transmittance nano coating for the TCO glass of the perovskite solar cell is prepared from a composite silica dispersion liquid, a polyhydroxy polymer dispersion liquid and a wetting and leveling agent. The high-transmittance nano coating has higher mechanical properties, higher stability and service life, superhydrophilicity and self-cleaning property, can be prepared in a normal temperature environment, is suitable for the perovskite solar cell, and can increase the light transmittance of the TCO glass of the perovskite solar cell.

The utility model discloses a soft antifouling high-strength fishing net, which belongs to the technical field of fishery equipment, and comprises a plurality of steel ropes, the outer wall of one of the steel ropes is fixedly connected with a plurality of floaters, the outer wall of each of the floaters is fixedly connected with two reflective stickers, and the reflective stickers are fixedly connected with the steel ropes. Nettings are fixedly connected among the steel ropes, and a plurality of lead weights are fixedly connected to the outer wall of one of the steel ropes. The fishing lines are made of various materials such as the metal wires, the high-strength fiber braid layers, the buffer layers and the antifouling coatings so as to weave a plurality of fishing nets with regular hexagonal meshes, and the metal wires, the high-strength fiber braid layers and the buffer layers can ensure the flexibility of the fishing nets and cannot be broken when the fishing nets are impacted by large fishes; and the regular hexagonal meshes are arranged in a honeycomb shape, so that a good intercepting effect on fish schools can be achieved, the probability that the fishes are captured is increased, and the fishing efficiency is improved.

The utility model discloses a valve gland with dustproof function, including first gland, second gland and second threaded hole, first gland one side is equipped with second gland, first gland and second gland all are equipped with two symmetries second threaded hole, first gland and second gland pass through first threaded hole and are fixed with each other through screw, first gland one side outer wall fixedly connected with first rubber disc, second gland one side outer wall fixedly connected with second rubber disc, first rubber disc fixedly connected with a plurality of first rubber ring, first rubber ring one side of the innermost circle is equipped with the sealing ring, second rubber disc fixedly connected with a plurality of second rubber ring. The device utilizes the first rubber ring and second rubber ring of staggered arrangement, has realized the effect of high -efficient dustproof sealing, solved the problem that current device lacks reliable multilayer dustproof design and automatic cleaning function.

The application provides a multifunctional nanofiltration membrane and a preparation method and application thereof, and the preparation method comprises the following steps: first, preparing a hydrophilic polydopamine oxidation layer on a polyamide nanofiltration membrane; then, grafting a PHFBM self-cleaning layer with low surface energy on the polydopamine layer; then, grafting a PMTAC layer with sterilization performance on the PHFBM layer; finally, grafting a zwitterionic polymer PSBMA layer with a defense function on the PMTAC layer, so as to obtain a multifunctional nanofiltration membrane with the functions of defense, resistance and self-cleaning. The multifunctional nanofiltration membrane prepared by the application can effectively improve the pollution phenomenon of microorganisms by the defense of the hydrophilic material and the sterilization effect of the quaternary ammonium salt while maintaining the advantage of high water flux, and the low surface energy material can make dead cells and extracellular polymers automatically fall off from the membrane surface under low shear force, so that the effect of self-cleaning is realized.

The utility model belongs to the technical field of valves, and provides an agricultural valve which comprises a valve body, one end of the valve body is provided with a connecting port, the other end of the valve body is provided with a water outlet, the top of the valve body is provided with a limiting pipe, a spherical protection plate is arranged in the valve body, the top of the spherical protection plate is provided with an imbedding hole, and a rotating assembly is arranged in the spherical protection plate. The rotating assembly comprises a rotating shaft rotationally connected into the placement hole, a handle is fixedly connected to the top of the rotating shaft, a protruding block is fixedly connected to the handle, and a flow guide component is arranged at the bottom of the rotating shaft; according to the utility model, by arranging the upwarped guide plate, when water flow passes through, the guide plate changes the laminar flow of the water flow into turbulent flow, and the water flow is guided and the direction of part of the water flow is changed, so that the water flow washes a sediment precipitation area in the valve, the valve can effectively avoid impurity precipitation during irrigation, the self-cleaning effect is achieved, and the interior of the valve body is prevented from being blocked; the normal opening and closing of the valve are influenced, even the valve is blocked, and the irrigation efficiency is improved.

The invention discloses a ventilation and heat dissipation structure of a computer, and relates to the technical field of computers, the ventilation and heat dissipation structure of the computer comprises a computer body, the computer body comprises a case, the left side of the case is provided with a plurality of heat dissipation grooves, and the heat dissipation grooves are distributed at equal intervals. By arranging the cleaning assembly and the cleaning mechanism, the transmission mechanism can drive the cleaning mechanism and the cleaning assembly to complete self-cleaning of the heat dissipation groove, so that the self-cleaning effect is achieved, and the problem that when an existing computer is subjected to heat dissipation, heat dissipation is generally conducted through the heat dissipation groove after a refrigeration fan is adopted is solved. The problems that an existing heat dissipation groove is not provided with a self-cleaning structure during use, more and more external dust is accumulated on the surfaces of heat dissipation holes along with the increase of time, then the use efficiency of the heat dissipation groove is affected, the heat dissipation effect is reduced, and certain limitation exists are solved, and the self-cleaning effect is achieved.

The application relates to the technical field of laser ranging, in particular to a laser range finder, which comprises a laser emitter, a collimating lens, a receiver, a receiving lens, a collimating lens barrel, a receiving lens barrel and light-shielding cleaning glue; the collimating lens barrel is provided with a first accommodating groove, a first opening of the first accommodating groove corresponds to and covers a side wall of the collimating lens, and extends to a side wall of the collimating lens close to a light-out surface and beyond the side wall, the light-shielding cleaning glue comprises first light-shielding cleaning glue, in a first state, the first light-shielding cleaning glue is filled in the first accommodating groove and covers the side wall of the collimating lens, in a second state, part of the first cleaning glue spreads out from the first opening beyond the side wall and covers the light-out surface of the collimating lens; and / or the receiving lens barrel is provided with a second accommodating groove, a second opening of the second accommodating groove corresponds to and covers a side wall of the receiving lens, and extends to a side wall of the receiving lens close to a light-in surface and beyond the side wall, the light-shielding cleaning glue comprises second light-shielding cleaning glue filled in the second accommodating groove.

This invention discloses a waste filtration and collection device for a swimming pool underwater cleaning robot, comprising: a shell with an inlet channel and an outlet channel; the inlet channel having a confluence channel and two suction channels; the two suction channels are located at the bottom of the shell and converge to the lower end of the confluence channel; the upper end of the confluence channel extends into the inner cavity of the shell and divides the inner cavity into front and rear waste compartments; the outlet channel has a drain channel and two filter channels; the drain channel is located at the top of the shell, with a water pump impeller installed at the drain outlet at the upper end of the drain channel, and its lower end confluences and connects to the upper ends of the two filter channels; the lower ends of the two filter channels are equipped with filter screens, which correspond to the inlets of the front and rear waste compartments respectively; both ends of the confluence channel are gradually expanding openings, with the upper end guiding the flow direction towards the front and rear filter screen areas respectively. This invention can effectively reduce the flow resistance of the entire channel, reduce the power consumption of the swimming pool cleaning robot, and thus extend the effective working time of the robot.

The utility model discloses a measurement type pyrolysis particle fire hazard detector for an electric power system. The measurement type pyrolysis particle fire hazard detector comprises a sampling pipe mechanism, a detection main body mechanism and at least one self-cleaning filtering mechanism. The measurement type pyrolysis particle fire detector for the electric power system has an excellent detection effect aiming at the situation that the electric power system is blocked or is hidden in position, and open fire or smoke is difficult to recognize or detect, the external sampling pipe mechanism is more accurate in smoke recognition, and multi-branch detection is more efficient. By means of the arrangement of the two-way fan, active air suction type extremely-early-stage accurate detection can be achieved, the filtering effect can be achieved by means of the arrangement of the self-cleaning filtering mechanism, and impurity interference is avoided. Through cooperation of the bidirectional fan and the self-cleaning filtering mechanism, the self-cleaning effect of the self-cleaning filtering mechanism can be achieved, the service life of the fire detector is prolonged, the maintenance cost is saved, and the fire detector is reasonable in structure, convenient to install and easy to use.

The application relates to the technical field of injection molding machines, in particular to an electric shooting structure of an injection molding machine, which comprises an injection molding machine, one side of the injection molding machine comprises a mold, the mold is provided with a sprue, the other side of the injection molding machine comprises a shooting base, a feeding hopper, a cylindrical barrel and a plasticizing servo motor, the output end of the plasticizing servo motor is connected with a screw rod in the barrel, a processing structure is installed at the front end of the barrel, the processing structure is linked with a mechanical counting structure, through the processing structure, the function that the nozzle rotates in one direction when the shooting base moves forward and the nozzle automatically stops rotating when the shooting base retreats is realized, an additional motor or electric control driving is not needed, and only the shooting moving force can make the nozzle continuously and uniformly rotate in the process of close pressing, local long-term pressure wear and indentation of a sealing surface are effectively avoided, glue leakage is prevented from the root, shear force generated by rotation can break the sticking points of the melt, the risk of mold sticking is reduced, cold material, carbon deposition and residual material around the nozzle end face and the sprue can be automatically scraped off, and the self-cleaning effect is realized.

The application discloses a co-rotating twin-screw extruder with periodically changed rotating speed ratio and a processing method thereof. The co-rotating twin-screw extruder with periodically changed rotating speed ratio comprises a barrel and a screw mechanism. The barrel adopts an 8-shaped structure with cylindrical holes penetrating each other in parallel with their axes. The screw mechanism is located in the barrel and comprises a first screw and a second screw. The first screw and the second screw rotate in the same direction, the average rotating speeds of the first screw and the second screw are equal, the rotating speeds of the first screw and the second screw periodically pulsate with time, the pulsation periods of the first screw and the second screw are the same, and the first screw and the second screw always rotate in meshing with each other during operation, so that the self-cleaning function is realized. The introduction of the periodic transient disturbance effect strengthens the reinforced melting, mixing and exhaust efficiency, and the co-rotating twin-screw extruder is especially suitable for low-temperature processing of a strong dispersion multi-phase material system.

The self-cleaning road marking paint is composed of A component and B component, wherein the A component is composed of 50-150 mass parts of modified acrylic resin, 0.1-2 mass parts of accelerator, 1-10 mass parts of inert oil and 10-50 mass parts of low-boiling and low-surface tension solvent; the B component is composed of 50-150 mass parts of modified acrylic resin, 1-10 mass parts of curing agent, 1-10 mass parts of inert oil and 10-50 mass parts of low-boiling and low-surface tension solvent; the modified acrylic resin is a mixture obtained by dissolving solid acrylic resin with active monomers of methyl methacrylate, butyl acrylate and hydroxypropyl methacrylate as dispersion medium, adding inorganic filler and nano titanium dioxide, and modifying the inorganic filler and nano titanium dioxide with silane coupling agent. The paint can realize long-term self-cleaning effect of road marking without increasing the smoothness of the surface of the road marking.

The utility model relates to the technical field of drilling monitoring, and discloses a rock and soil geology engineering investigation drilling monitoring device which comprises a device base, a fixing frame is welded to the upper end of the device base, and a cleaning mechanism used for cleaning a drill bit is arranged on the upper surface of the device base. A limiting mechanism used for limiting the device is arranged on the side wall of the device base, and a driving mechanism used for driving the device is arranged on the upper surface of the fixing frame. And the cleaning mechanism comprises a cleaning piece, the cleaning piece is welded to the upper surface of the device base, and two movable piece rods are arranged in the cleaning piece. By means of the movable rod arranged on the cleaning piece, when the drill bit body is reset under the action of the tension spring, the cleaning brush can achieve the self-cleaning effect, subsequent manual cleaning is not needed, and the situation that soil left on the surface of the drill bit affects next use is reduced.

This application discloses a washing and drying line for recycling PE agricultural film, relating to the technical field of plastic recycling. It includes a pretreatment module, a main treatment module, and a dewatering device. The dewatering device includes a body with a rotating drum and a rotating shaft rotatably mounted on it. The rotating shaft is coaxially arranged inside the drum and has spiral blades for propelling the material. A drive mechanism on the body drives the drum and shaft to rotate at different speeds. The body has an inlet communicating with a separation chamber and a solid outlet communicating with the separation chamber. A water guiding chamber is provided inside the drum, and several micropores communicating with the water guiding chamber are provided on the inner wall of the drum. A drain pipe communicating with the water guiding chamber is provided on the body. A pump unit is located on the side of the drain pipe away from the water guiding chamber, capable of inflating, deflating, and pumping water. This application has the effect of reducing the moisture content of the material.

The application discloses a baffle, a splash-proof device, a chemical mechanical polishing machine table and a polishing waste liquid splash-proof method. The splash-proof device comprises a baffle, a cleaning stand and a driving assembly. The baffle is arranged around the outer periphery of a polishing table. The baffle can be independently lifted under the driving of the driving assembly. The cleaning stand is arranged outside the baffle, and a cleaning spray pipe of the cleaning stand can be rotated to the inside of the baffle and spray liquid to clean the baffle. According to the technical scheme of the application, the polishing waste liquid splash-proof baffle is arranged in a split mode. The working state of a polishing pad organizer in a process can be used to adjust the lifting of the baffle, so that the splashing of waste liquid is maximally blocked. A hydrophilic area and a hydrophobic area are arranged on the surface of the baffle. The surface tension difference of liquid drops on different surfaces is used to realize the adhesion of the liquid drops on the hydrophilic area to prevent splashing, the quick detachment of the liquid drops on the hydrophobic area to prevent secondary splashing and the precipitation of crystals on the surface of the baffle, so that the self-cleaning effect of the surface of the baffle is achieved.

The utility model relates to a double-pipe heat exchanger with a bidirectional spiral flow channel. The double-pipe heat exchanger comprises a first pipe box, a second pipe box and a pipe bundle section. An inner tube and a plurality of sleeves are arranged in the tube bundle section; spiral fins are respectively arranged between the inner tube and the adjacent sleeve, between the sleeves and between the outermost sleeve and the outer wall of the tube bundle section, and a plurality of spiral runners are formed in the tube bundle section; a first partition plate, a first medium inlet and a second medium outlet are arranged in the middle of the first tube box. A second partition plate, a second medium inlet and a first medium outlet are arranged in the middle of the second pipe box. The first heat exchange medium and the second heat exchange medium conduct countercurrent flow heat exchange through the corresponding spiral flow channels, the heat exchange area is large, the heat exchange efficiency is high, the structure is simple, and manufacturing is convenient.