78results about How to "Guaranteed wiping effect" patented technology

The invention discloses a vehicle-mounted road fence cleaning device for municipal use. A water storage tank is arranged on a sprinkler vehicle body and a storage tank is arranged on one side of the water storage tank. A lifting device is arranged in the contain box, and the lifting device comprises a lifting frame, a lifting cylinder, a sprocket wheel III, a chain and a sliding block; a cleaningdevice is arranged on one side of the lifting device, and the cleaning device comprises a fixed brush roller, an adjusting brush roller, a transmission box and a transmission device, wherein the transmission box is provided with a transmission device; a high-pressure water pipe is arranged on one side of the fixed brush roller; the other side of the guard rail is provided with an adjusting brush roller symmetrical to the fixed brush roller, and the structure and size of the adjusting brush roller are consistent with those of the fixed brush roller. The upper part of the transmission box of theadjusting brush roller is provided with an obstacle overtaking device. When the invention meets obstacles such as traffic indication signs, the adjusting brush roller is folded up by using a flippingdevice and a retracting device, and the adjusting brush roller is reset by using the flipping device and the retracting device after the flipping device and the retracting device pass over the obstacles, thereby avoiding the repositioning of the cleaning device and improving the scrubbing efficiency.

The invention relates to a magnetic attraction type glass cleaner. According to the technical scheme of the invention, a glass wiper comprises an lengthening rod (1), an internal wiper body (2), an external wiper body (3) and a manual spraying barrel (4), wherein an water outlet of the manual spraying barrel (4) is connected with the external wiper body (3) through a flexible pipe. An external side face of an internal wiper body interlayer (13) is provided with 3-10 first magnetic substances (6), 2-10 first rollers (10), internal wiper body wiping cloth (9), 2-10 second rollers (8), 3-10 second magnetic substances (6) and an internal wiper body scraping plate (5) in sequence from top to bottom; the external side face of an external wiper body interlayer (36) is provided with 3-10 third magnetic substances (34), 2-10 third rollers (33), a strip-shaped groove (30), external wiper body wiping cloth (29), a fourth roller (28), a fourth magnetic substance (26) and an external wiper body scraping plate (25) in sequence from top to bottom, wherein the trip-shaped groove (30) is provided with a spraying control device (32) and 1-7 atomizing nozzles (31). The magnetic attraction type glasscleaner is convenient to use, and the wiper bodies cannot drop easily; and the magnetic attraction type glass cleaner has excellent scrubbing effect, and is suitable for scrubbing glass with different cambered surfaces.

The invention relates to the technical field of elevator accessories, in particular to a multifunctional disinfection and sterilization device for an elevator car. According to the specific technicalscheme, the multifunctional disinfection and sterilization device for the elevator car comprises a car body, wherein an internal circulating fixed block is arranged at the inner top of the car body; afixed hood is fixed at the bottom of the internal circulating fixed block; a multi-hole disinfection nozzle is arranged at the bottom of the fixed hood and is connected with a disinfectant box; a multi-stage electric push rod is fixed at the outer top of the car body; an initial rod of the multi-stage electric push rod extends into the car body and a fixed plate parallel to a side wall of the carbody is fixed at the initial rod; and the other three sides, except for the side facing the interior of an elevator, of the fixed plate are wrapped with cotton cloth layers. According to the multifunctional disinfection and sterilization device for the elevator car, the problems that targeted disinfection cannot be carried out, the disinfection frequency and time are uncontrollable and the interior of the elevator is not cleaned in the prior art are solved.

The invention discloses a blackboard eraser capable of preventing powder from scattering. The blackboard eraser comprises a groove-shaped cover. The two parallel side walls of the groove-shaped cover are connected with two or more damping rotating shafts connected with idler wheels respectively, the two or more idler wheels are sleeved with eraser belts in a connecting mode, the end face of a bottom plate of the groove-shaped cover is provided with scraping strips, the bottom plate is provided with powder absorbing holes, and the rotating eraser belts can make contact with the scraping strips. The other end face of the bottom plate of the groove-shaped cover is connected with a detachable powder collecting box, and the bottom of the powder collecting box is connected with an electrostatic plate and an electrostatic generator. The powder is removed based on the electrostatic adsorption principle and is collected in a unifying mode, the scattering of the powder can be reduced, the wiping effect of the blackboard eraser can be improved, the blackboard eraser is convenient to use, energy is saved, and the environmental friendliness is facilitated.

The invention discloses a glazing process for a daily ceramic blank and relates to the technical field of daily ceramics. The glazing process comprises the following steps: (1) preparing a glaze; (2)preparing glaze pulp; (3) performing automatic glaze application; (4) polishing the bottom of the blank. In the glaze preparation process, the glaze is vacuumed and frozen to reduce the crushing granularity of the glaze, the abrasion degree of the glaze to blades of a crushing machine in the crushing process is reduced, and meanwhile the crushing time is shortened; due to adoption of the glaze application process, the glaze application quality is ensured, a glaze surface which is smooth and fine in hand feeling, clear and bright in gloss and fluent and smooth in line is formed on the surface of a ceramic blank after the glaze is sintered, and thus the market competitiveness of a ceramic product is improved.

The invention discloses an intelligent sweeping and mopping integrated cleaning device with an automatically replaceable mopping head. The intelligent sweeping and mopping integrated cleaning device comprises a shell, a sweeping mechanism, a mopping mechanism, an intelligent control system and a charging battery. Universal wheels are arranged on the bottom face of the shell; two infrared generators of which the angles are 75-90 degrees are symmetrically arranged on the bottom face of the shell; an ultrasonic sensor is arranged at the front end of the shell; a mop opening is formed in one sideof the tail end of the bottom face of the shell; the sweeping mechanism comprises side brushes, a main brush, dust collection devices and a dust box; the mopping mechanism comprises mops, a mop box, apressing box and a liquid storage box; magnetic stripes are arranged at the two ends of the long side of each mop, so that the mops are attracted with one another to form a mop set; the two ends of the mop set are wound on two rotary shafts respectively; the pressing plate is arranged above the mop opening; multiple through holes are uniformly formed in the lower surface of the pressing plate, and the liquid storage box is communicated with liquid in the through holes. By means of the intelligent sweeping and mopping integrated cleaning device with the automatically replaceable mopping head,motions of sweeping and mopping are conducted simultaneously; meanwhile, through the rotary shafts, the motion of the mop set is controlled, and automatic replacement of the mops in the process of cleaning a house is achieved, so that the room cleaning effect is obviously improved.

The invention discloses a photovoltaic panel fixing device for intelligent building which is convenient to adjust daylighting angle, including the base, Support bar and fixing bar, the left and rightends of the base are penetrated with fixed bolts, the upper end of the supporting column is penetrated with a bearing plate, the right side of the support bar is provided with a first motor, the upperend of the fixing rod is fixedly connected with the fixing plate through a connecting shaft, the rear end of the limiting plate is penetrated with an adjusting shaft, The brush is fixedly connected with the connecting plate through a screw rod, the right end of the adjusting shaft is provided with a second motor, the right side of the supporting column is provided with a third motor, the upper surface of the bearing plate on the left side of the fixing rod is provided with a water tank, the right side of the water tank is penetrated with a water supply pipe, and the upper end of the water supply pipe is connected with a sprinkler head. The photovoltaic panel fixing device for intelligent buildings, which is convenient to adjust the daylighting angle, can rotate the photovoltaic panel, enable the photovoltaic panel to collect solar energy to a greater extent, and can clean the impurities on the surface of the photovoltaic panel.

An electric black board includes a blackboard face, a lining plate, an upper blackboard reel, a lower blackboard reel, a motor, a control switch I, blackboard eraser devices and chalk dust catching grooves, wherein the lining plate is arranged in the middle of the blackboard face, the upper blackboard reel and the lower blackboard reel are used for reeling the blackboard face to rotate, and the motor is used for driving the upper blackboard reel and the lower blackboard reel to rotate; the two ends of one of the upper blackboard reel and the lower blackboard reel are fixedly provided with gears, and the two sides of the blackboard face are provided with bayonets matched with the gears.

The invention relates to a transformer core cleaning device and a using method. The device comprises a cleaning frame, an isolation plate is arranged on the inner wall of the cleaning frame, a drainage valve is arranged on the rear side of the cleaning frame, a discharge groove is formed in the front side of the cleaning frame, the cleaning frame is divided by the isolation plate into a soaking cavity and a wiping cavity, the wiping cavity is located on the front side of the soaking cavity, a push mechanism is arranged in the soaking cavity, and a wiping mechanism is arranged in the wiping cavity. The problems that in the transformer core cleaning process in the prior art, soaked cores need to be wiped manually one by one, the labor intensity is large, consumed time is long, the cores arethin, the soaked cores are mutually sucked tightly and cannot be easily taken and placed one by one, and core wiping and cleaning efficiency is affected can be solved.

The invention discloses a computer display screen capable of protecting privacy. The computer display screen comprises a base, wherein display screen glass is arranged at the front side of a display screen body, bearing seats are arranged in bilateral symmetry at positions, located above the display screen glass, of the front side of the display screen body, a rotary shaft is arranged between thetwo bearing seats, shading cloth is arranged on the rotary shaft, a sliding plate is arranged at the lower end of the shading cloth, a cleaning cotton strip is arranged at the inner side of the sliding plate, cavities are formed in bilateral symmetry at the upper side of the base, a cloth rolling device is arranged at the lower end in each cavity, blocking cloth is arranged on each cloth rolling device, second motors are embedded in bilateral symmetry at the upper side of the base, a threaded rod is arranged at the output end of each second motor, lifting slots are symmetrically arranged at the left side and the right side of the display screen body, the upper end of each threaded rod is connected with the upper end of the corresponding lifting slot, a sliding seat matched with each lifting slot is arranged on the corresponding threaded rod, and a lifting rod is arranged at the outer side of each sliding seat. The computer display screen is simple in structure, convenient to use, highin privacy, capable of shading light and high in use comfort.

The invention relates to the field of packaging bag processing, and particularly relates to a dehydration and drying device for packaging bags. The dehydration and drying device comprises a rack, a shell located above the rack, belt wheels, as well as a drying mechanism and a dehydration mechanism which are fixedly arranged in the shell, wherein the belt wheels are arranged slantwise above the rack and vertical to a moving direction of the belt wheels, the dehydration mechanism is arranged just above the belt wheels, and the drying mechanism is arranged at the rear end of the dehydration mechanism; and the dehydration mechanism comprises a water scraping plate and a water collection groove, the water scraping plate is vertical to the surfaces of the belt wheels, the lower end surface of the water scraping plate is bonded with the surfaces of the belt wheels, the water collection groove is arranged just below the belt wheels and corresponding to the water scraping plate, the drying mechanism comprises a fan and an electric heating tube, and the fan is arranged just above the electric heating tube. According to the invention, the dehydration device is arranged on the upper surfaces of the packaging bags, and water on the upper surfaces of the packaging bags is collected, thus the dehydration and drying effects are improved.

The invention discloses a hot rolling work roll water scraping fuel injection system which comprises a movable device and a water scraper blade installed on the movable device. The movable device can drive the water scraper blade to move towards the roller face of a working roller. A chamfer is arranged at the head of the water scraper blade. The chamfer is located on the intersection of the upper surface of the water scraper blade and the end face of the head. The chamfer is coated with a wear-resisting material. The chamfer makes contact with the working roller. A through hole which is through in the front-back direction is formed in the head of the water scraper blade. A groove is formed in the radial direction of the through hole. One end of the groove is communicated with the through hole. The other end of the groove is communicated with the outer side of the end face of the head of the water scraper blade. A roller-gap lubricating device is installed inside the through hole and the groove. The hot rolling work roll water scraping fuel injection system has the advantages that the roller-gap lubricating device is arranged inside the water scraper blade, the water scraper blade is cooled constantly by cooling water, collected by the water scraper blade, on the working roller, the water scraper blade is in the low-temperature (lower than 50 DEG C) state all the time, and therefore the roller-gap lubricating device is free from high-temperature radiation of hot rolling strip steel.

The invention discloses a surface wiping machine for disc-shaped parts. The surface wiping machine comprises a part storage tank, a part supply machine, a part recovery machine, a feeding and discharging robot and a wiping device, wherein the part storage tank is provided with a limiting groove used for storing parts; a plurality of to-be-wiped parts can be stacked on the part supply machine, andthe uppermost part is located at the to-be-clamped altitude; the part recovery machine is used for stacking multiple wiped parts; the feeding and discharging robot is provided with clamping jaws whichcan make contact with the outer circumferential surfaces of the parts and are matched with one another to clamp the parts, and can move between the part supply machine, the part storage tank and thepart recovery machine; and the wiping device is used for wiping a part placed on the part storage tank. According to the scheme, the independent stations can be organically combined through the feeding and discharging robot to form an automatic system, so that the automation degree is high, and the machining efficiency is improved; and meanwhile, the clamping jaws of the feeding and discharging robot make contact with the circumferential surfaces of the disc-shaped parts, so that damage to the upper and lower surfaces of the parts is avoided; and meanwhile, the problem that the parts are contaminated and scratched again after being wiped can be solved, and the wiping effect and quality of the parts can be guaranteed.

The invention discloses a high-wear-resistance and high-water-contact-angle hardened film which comprises a transparent base material, a bottom coating layer and an AF layer which are sequentially attached from bottom to top; the bottom coating layer is formed by coating the transparent base material with a bottom coating solution for light curing, the AF layer is formed by coating the bottom coating layer with an AF coating solution for heat curing, and the bottom coating solution comprises the components in parts by weight: 10 to 50 parts by weight of a polyurethane acrylate resin oligomer with the functionality of 4 to 20 and the molecular weight of 800 to 5000, 2 to 30 parts by weight of allyl-modified terminal allyl phenolic resin with the functionality of 5 to 30 and the molecular weight of 500 to 5000, 0.3 to 3 parts by weight of a flatting agent, 0.5 to 2.5 parts by weight of a photoinitiator, and 30 to 80 parts by weight of an organic solvent; and an AF coating liquid is a perfluoropolyether coating liquid with the solid content of 0.1% to 2% and with an end group modified by siloxane. The high-wear-resistance and high-water-contact-angle hardened film has the advantages of low friction coefficient, high water contact angle, simple process, low manufacturing cost and benefit for mass production.

The invention discloses a wiping device for a glaze solution on the bottom of domestic ceramic glazed blank, and relates to the technical field of domestic ceramic. The wiping device comprises a rack, a wiping mechanism and a cleaning mechanism, wherein the wiping mechanism consists of a first rotary wheel, a second rotary wheel, a conveyor belt which surrounds the first rotary wheel and the second rotary wheel and a first motor for driving the first rotary wheel to rotate; glaze wiping cloth tightly sleeves the conveyor belt; the cleaning mechanism consists of a cleaning slot with a cleaning liquid, a sponge cleaning roller mounted inside the cleaning slot through a roller and a second drive motor for driving the sponge cleaning roller to rotate; the liquid surface of the cleaning liquid in the cleaning slot submerges the roller; when the sponge cleaning roller rotates, the sponge outer wall is in interference contact with the glaze wiping cloth; and a rotation direction of the sponge cleaning roller is reverse to that of the first rotary wheel. According to the wiping device disclosed by the invention, the wiping mechanism is matched with the cleaning mechanism, and bottom wiping work is guaranteed to be orderly performed after the ceramic blank is applied with glaze, so that glaze applying quality of the ceramic blank is improved.

The invention discloses a mathematical teaching instrument. The mathematical teaching instrument comprises a first fixing component, a supporting component, a connecting component, a first writing board, a second writing board, a third writing board, a second fixing component, a supporting plate, a height adjusting device, a wiping device and a damping device; the supporting plate is slidably connected to the first fixing component; the bottom end of the supporting component is connected with the supporting plate; the top end of the supporting component is connected with the second fixing component; the connecting component is slidably connected with the supporting component; and the connecting component is provided with the first writing board; the first writing board and the third writing board are located on two sides of the first writing board; and the second writing board and the third writing board are both slidably connected with the connecting component. According to the mathematical teaching instrument of the invention, the height adjusting device is adopted, so that the pain of a teacher who bends to write or stands on tiptoe to write can be alleviated; the wiping deviceis adopted, the teacher does not need to manually wipe the writing boards, and the workload of the teacher can be reduced; and the damping device is adopted, so that the stability of the teaching instrument can be facilitated.

The invention relates to the technical field of electric wires and cables, in particular to wire and cable processing equipment, which comprises a base, a coating unit, a cooling unit and a winding unit, and is characterized in that the upper end of the base is sequentially provided with the coating unit, the cooling unit and the winding unit from left to right; according to the invention, the following problems can be solved: 1, when traditional wires and cables are processed, the cables are mostly cooled through a soaking method, the hardness of the cables is increased when the cables are soaked in water, and the cables cannot be processed in water, so that the cables cannot be molded at the first time, and the later processing effect of the cables is influenced; and 2, after the wires and cables are soaked and cooled at present, most of the wires and cables are wiped by holding cotton cloth by a worker, and if the water in the cotton cloth is not drained in time, the water absorption of the cotton cloth is easily influenced, so that the wiping effect is influenced.

The invention discloses a dust-proof teaching blackboard. The dust-proof teaching blackboard can reduce chalk dust which floats in air when words written with chalk are erased away. An upper guiding rail and a lower guiding rail are connected to the upper end and the lower end of a blackboard body correspondingly; the axes of both the upper guiding rail and the lower guiding rail are parallel to each other; and a sliding blackboard eraser is slideably connected to the upper guiding rail and the lower guiding rail. The sliding blackboard eraser comprises a water tank, a handle, sliding blocks,an erasing body and water absorbing strips, wherein the water tank is provided with a water inlet and a water cover; the water cover is in threaded connection to the water inlet; the handle is fixedlyconnected to the water tank; the number of the sliding blocks is two; the two sliding blocks are fixedly connected to the upper end and the lower end of the water tank correspondingly; sliding grooves are formed in the two sliding blocks correspondingly; the two sliding blocks are slideably connected to a transverse sliding rod I and a transverse sliding rod II correspondingly through the corresponding sliding grooves; the erasing body is fixedly connected to the water tank and located on one side close to the blackboard body; and one ends of the plurality of water absorbing strips are located in the water tank, and the other ends of the plurality of water absorbing strips are located in the erasing body and make contact with the erasing body.

The invention discloses a multifunctional intelligent cleaning integral device. The multifunctional intelligent cleaning integral device comprises a casing, a cleaning mechanism, a mopping mechanism,an intelligent control system and a rechargeable battery, wherein universal wheels are arranged at the bottom surface of the casing; two infrared ray generators with angle of 75 to 90 degrees are symmetrically arranged at the bottom surface of the casing; an ultrasonic sensor is arranged at the front end of the casing; a mop opening is arranged at one side of the tail end of the bottom surface ofthe casing; the cleaning mechanism comprises edge brushes, a main brush, a dust collection device and a dust box; the mopping mechanism comprises a mop, a mop box, an accommodation frame, a press plate, a guide rail and a clamping device; the mop is clamped out of the mop box by the clamping device, is moved on the guide rail, and is placed at the mop opening or the accommodation frame; the pressplate is arranged above the mop opening, and is used for fixing the mop on the mop opening. The multifunctional intelligent cleaning integral device has the advantages that the sweeping and mopping can simultaneously act; by matching with the guide rail and the clamping device, the mop can be automatically replaced in the room cleaning process, so that the cleaning effect of the room is obviouslyimproved.

The invention discloses an automatic wiping device for aluminum alloy plate machining, and relates to the technical field of aluminum alloy plate machining. An aluminum alloy plate and a workbench areincluded. The aluminum alloy plate is movably placed on the upper surface of the workbench. A transverse pushing mechanism is arranged on the upper surface of the workbench and drives the aluminum alloy plate through a clamping mechanism. A supporting frame is fixedly connected to the upper surface of the workbench. The top of the supporting frame is rotationally connected with a reciprocating screw through bearing matched limiting. A motor is further fixedly arranged on the top of the supporting frame. An output shaft of the motor is fixedly connected with one end of the reciprocating screw.The outer wall of the reciprocating screw is in cup joint with a reciprocating threaded sleeve. The reciprocating threaded sleeve drives a brush head through a transmission mechanism. According to the automatic wiping device, through cooperation between above structures, the technical problems provided in the background technology are effectively solved.

The invention discloses a tightening type mechanical hand and a loading and unloading robot. The mechanical hand comprises at least three clamping jaws distributed in a polygon shape, the plurality ofclamping jaws can synchronously rotate forwards or reversely around longitudinally-extending shafts correspondingly, during forward rotation, a tail end opening defined by the plurality of clamping jaws is expanded or contracted, during reverse rotation, the change tendency of the tail end opening defined by the plurality of clamping jaws is opposite to that of the forward rotation, and the tailend opening defined by the plurality of clamping jaws is larger than the outer circumference of a to-be-clamped part when being in the largest state and smaller than the outer circumference of the to-be-clamped part when being in the smallest state. According to the scheme, the clamping jaws are in contact with the peripheral surface of the part, and therefore, the upper surface and the lower surface of the part cannot be damaged, meanwhile, the problems that pollution and damage occur again after cleaning can be solved, the wiping effect and quality of the part can be guaranteed, and when thespecial clamping jaw movement mode is applied to the parts with the same size, the clamping jaws can be shorter and smaller compared with clamping jaws with rotating shafts rotating horizontally, andthen the operation in a smaller space is facilitated.

The invention belongs to the technical field of steel wire zinc plating, and provides a steel wire non-contact type gas wiping and galvanizing device. The device comprises a fixing frame, a strip-shaped through hole is transversely formed in the gas collecting box, a first fixing bolt is arranged in the strip-shaped through hole in a sliding mode, the first fixing bolt penetrates through the strip-shaped through hole and is locked on the fixing frame, one end of the connecting pipe is communicated with the gas collecting tank, and the gas knife is communicated with the other end of the connecting pipe. According to the technical scheme, the problems that in the prior art, the positions of the steel wire and the air knife are easy to deviate and are not easy to adjust are solved.

The invention discloses a high-altitude cable maintenance device, which relates to the technical field of cable maintenance. The device comprises a wiping assembly; the wiping assembly comprises a shell, a barrel and a water absorption pad which are sequentially arranged from outside to inside; the shell moves along a cable through a moving assembly; an inner cavity of the barrel is matched with the cable; the barrel is connected with the shell; the water absorption pad is arranged between the barrel and the cable; and the water absorption pad is connected with the barrel. On one hand, snow water or rainwater on the cable can be wiped off, the snow water or the snow water on the cable is prevented from being condensed into ice, and therefore the formation of cable ice hanging is avoided, and the situation that the cable is collapsed due to heavy ice hanging is avoided; and on the other hand, the device is especially suitable for acid rain areas, such as southwest acid rain areas, middle China acid rain areas and east China coastal acid rain areas, acid rain and acid mist on the surface of the cable are wiped off, the acid rain or the acid mist is prevented from flowing into surfacecracks of the cable to corrode a metal layer in the surface of the cable, and the protection effect on the cable is improved.

The invention discloses a device for cleaning an electrode through ultrasonic waves, and relates to the technical field of ultrasonic cleaning. The device comprises an ultrasonic wave generator, a controller and a heating device; a cleaning pool is arranged above the ultrasonic wave generator, a cleaning auxiliary device is arranged at the upper end of the cleaning pool, and the cleaning auxiliary device comprises a discharging assembly and an auxiliary assembly; a wiping device is arranged beside the cleaning pool and comprises a wiping assembly, an adjusting assembly and a vibration assembly, the adjusting assembly is matched with the wiping assembly, and the vibration assembly is installed on the upper portion of the adjusting assembly and matched with the wiping assembly; the heating device is arranged at the tail end of the wiping assembly, and a receiving box is arranged at the lower end of the heating device; and an air inducing assembly is arranged between the cleaning pool and the wiping device. According to the device, through work of the wiping assembly and cooperation of the vibration assembly, the cleaning effect on an electrode plate can be effectively improved, the air inducing assembly can improve the energy utilization rate, and energy conservation and environmental protection are achieved.

The invention provides an automatic blackboard scrubbing device, and belongs to the field of teaching aids. The automatic blackboard scrubbing device comprises a guide rail device, a scrubbing part and a controller; and the guide rail device is arranged on the upper side and the lower side of the scrubbing part, the scrubbing part is movably arranged on the guide rail device, the controller is used for controlling the scrubbing part to move so as to control the scrubbing part to scrub a blackboard, and when the blackboard needs to be cleaned, only the controller needs to control the scrubbingpart to work, so that the problem that chalk dust is inhaled into a human body when the blackboard is manually cleaned is avoided. Therefore, the blackboard cleaning work can be efficiently and rapidly completed, and the chalk dust can be prevented from being inhaled into the body when the blackboard is cleaned.

The invention discloses a big data intelligent middle station service system which comprises a box body, a controller is arranged on the inner wall of the box body, and the top of the box body is of an inclined plane structure and is provided with a touch screen in an embedded mode; sliding grooves are formed in the two sides of the box body in the length direction in a penetrating mode, moving plates are arranged in the sliding grooves in a sliding mode, and a driving assembly is arranged in the box body. The two ends of the moving plate penetrate through the sliding grooves and are connected with elastic telescopic rods, the telescopic ends of the two elastic telescopic rods are vertically upward and are connected with bearing blocks, a wiping plate is rotationally connected between the two bearing blocks, wiping cotton is connected to the bottom surface of the wiping plate, and a liquid outlet hole is formed in the inner bottom surface of the liquid storage cavity in a penetrating mode. A liquid storage cavity is formed in the wiping plate, and a liquid supply assembly is arranged in the box body and used for injecting alcohol into the liquid storage cavity. The system has the beneficial effects that the touch screen can be automatically wiped and disinfected, the use effect of the touch screen is guaranteed, cross infection is prevented, and the use effect is good.

The invention discloses an auxiliary teaching aid for teaching and learning of college English. The auxiliary teaching aid comprises a supporting column, a rotary sleeve base, a locking bolt, a connection base, an operation handle, erasing assemblies and scribing assemblies, and the orientation of the operation handle can be adjusted by releasing the locking bolt on the rotary sleeve base and rotating the rotary sleeve base. The auxiliary teaching aid for teaching and learning of college English is convenient and easy to use and reasonable in structure, when the auxiliary teaching aid assistsin teaching, blackboard erasing and scribing can be switched by rotating the operation handle, and using is convenient; in the scribing process, four parallel lines can be drawn at a time convenientlyand quickly; chalk in chalk boxes can be replaced quite conveniently, a clamping effect is good, and blackboard erasers are supported and fastened by adopting an elastic structure, so that the uniformity of force applied to a blackboard in the erasing process is improved, and the blackboard erasing effect is ensured; and the auxiliary teaching aid plays an extremely positive role in teaching andlearning of college English.

The invention discloses a streaming media service platform based on 5G, and the platform comprises a plurality of collection units, wherein each scenic spot corresponds to one collection unit, and thecollection units are used for collecting scenic spot data; each scenic spot corresponds to one processing unit, and the processing units are used for compressing the acquired scenic spot data into streaming media data; the 5G communication terminals are used for transmitting the acquired scenic spot data to the processing unit and transmitting the streaming media data to the platform server; anda browsing unit which is used for browsing the streaming media data in the platform server by a user. According to the streaming media service platform based on 5G, rapid processing and uploading of on-site videos can be realized through a 5G communication mode of the platform, and a streaming media technology is adopted, so that a user can watch the videos without waiting for complete downloadingof media, and the use experience is improved.

The invention relates to a plastic-coated steel pipe production process. The plastic-coated steel pipe production process uses a plastic-coated steel pipe production device. The plastic-coated steel pipe production device comprises a workbench, an internal cleaning mechanism and an external cleaning unit, wherein the workbench is arranged on the existing working ground, the internal cleaning mechanism is arranged at the upper end of the workbench, and the external cleaning unit is arranged at the right end of the internal cleaning mechanism. According to the plastic-coated steel pipe production process, plastic-coated steel pipes are produced by adopting the design concept of internal and external dual cleaning, the arranged internal cleaning mechanism can enable the pipe fittings to be subjected to internal cleaning under a limiting and fixing condition, and the stability degree of the pipe fittings in the cleaning process is kept, so that the purpose of improving the cleaning effect is achieved; and the internal cleaning mechanism and the external cleaning unit utilize magnetism to clear impurities generated by cleaning so that the probability that the impurities are attached to the inner surfaces and the outer surfaces of the pipe fittings again can be reduced, and meanwhile, the phenomenon that the impurities are accumulated inside the pipe fittings can be avoided.