77results about How to "Less cleaning work" patented technology

The invention relates to a method for preparation of a polyolefin microporous membrane by a wet process. According to the method, polyolefin resin, an antioxidant and liquid paraffin are adopted as raw materials for preparation of the microporous membrane through a thermally induced phase separation method. Employment of the preparation method provided in the invention can effectively prevent thermal oxidative degradation and carbonization phenomena in a high temperature processing process of polyolefin resin. The antioxidant and the polyolefin resin are mixed and dispersed more uniformly, and the antioxidant can be removed during liquid paraffin extraction, so that the pure and high performance polyolefin microporous membrane can be obtained.

The invention relates to a new energy vehicle charging pile with an energy saving and waterproof function. The new energy vehicle charging pile with the energy saving and waterproof function comprisesa main body, a base, a charging plug, a central control mechanism, a power generation mechanism, a fire extinguishing mechanism and a heat radiation mechanism; a power generator comprises a lifting component and a bending component; the bending component comprises a driving unit, a supporting rod, a connecting block and two bending units; and the fire extinguishing mechanism comprises a telescopic component, a reciprocating component and a fire extinguisher. According to the new energy vehicle charging pile with the energy saving and waterproof function, by using the power generation mechanism, light energy can be sufficiently utilized to generate power to be stored for for a rainy day; and moreover, the demand on power grid electric quantity is reduced so that the new energy vehicle charging pile is more energy saving; in addition, through lifting, a solar cell panel can be folded into the main body to be protected under extreme severe weather to prevent the solar cell panel from being damaged, and therefore, economic loss is reduced; and by using the fire extinguishing mechanism, the fire can be rapidly extinguished by using sound waves to extinguish the fire so that the practicability and safety of the charging pile are enhanced.

The invention discloses an intelligent door, window and sunshade integrated device. The device comprises an intelligent control system, a window frame system and a sunshade shutter system, wherein the intelligent control system comprises an optical radiation intensity sensor (1), a signal receiving control component (2) and the like; the window frame system comprises a frame (9); a heat insulation hollow vitreous body (7) is arranged in the frame (9); the sunshade shutter system comprises a blind (6) which consists of a dentiform scroll component (5) and aluminum foil leaves (61); the dentiform scroll component (5) is used for controlling the rolling of the blind (6) and an overturning angle of the aluminum foil leaves (61); the blind (6) and the dentiform scroll component (5) are arranged in the cavity of the heat insulation hollow vitreous body (7); and the cavity of the heat insulation hollow vitreous body (7) is full of inert gas (8). The device can not only automatically adjust the blind according to the intensity of light rays, but also has very good functions of sun shading and heat shielding.

The present invention relates to a glue liquid circulation system used for a honeycomb glue coating process, the glue fluid circulation system is characterized by including a glue coating tank, a stirring bucket, a solvent bucket, a viscosity sensor, a pneumatic stirring paddle, a pneumatic diaphragm pump, liquid level sensors and a viscosity sensor. The stirring bucket is provided with the pneumatic stirring paddle, a raw glue injection port and the liquid level sensor, a solvent valve is mounted on a pipeline between the stirring bucket and a solvent bucket, the glue coating tank is provided with the liquid level sensor, a glue supplementing pipeline, a circulation pipeline and a residue glue collection pipeline are in connection with the glue coating tank and the stirring bucket, the glue supplementing pipeline is provided with the viscosity sensor and the pneumatic diaphragm pump, and the residue glue collection pipeline is provided with a ball valve. The glue liquid circulation system can implement automatic control of glue liquid viscosity and homogeneity in the honeycomb glue coating process, is high in efficiency, easy to operate, and low in device cost, and can meet the glue strip stability in the glue coating production process.

The invention discloses an extraction vanadium recovery process. Spent vanadium catalysts are subjected to water leaching and reductive acid leaching treatment to obtain VOSO4-containing extracted raw liquid, the raw liquid is subjected to the single-stage extraction, tail liquid concentration, separate reextraction and back extraction vanadium recovery process, vanadium precipitation is carried out with ammonium hydroxide, and roasting is conducted to produce vanadium pentoxide. Saponified P204 is adopted as a main extraction agent, it is ensured that the pH value of the whole system is within the optimal pH value range in the extraction process, the extraction system can maintain a stable pH value, and the single-stage extraction rate of vanadium is greatly improved to above 96.4%; tetravalent vanadium obtained through extraction can be directly subjected to vanadium precipitation without oxidation, a high-purity vanadium product is produced, the technological process is simplified, and atmosphere pollution caused by chlorine generated by chlorate vanadium oxide is avoided; meanwhile, the selectivity characteristic of the saponified P204 is utilized, the influences of iron, phosphorus and arsenic on purity of extracted vanadium are effectively avoided, a part of impurity removal work is reduced, raw material consumption is reduced, enterprise cost is reduced, and economic benefits are remarkable.

A method of synthesizing tricyclodecenyl isobutyrate spice relates to the technical filed of fine chemical engineering synthesis. In the invention, with dicyclopentadiene and isobutyric acid in approximate equimolar proportion as raw materials, with zeolite-carrying phosphotungstic acid as a catalyst and with isobutyric anhydride as a protective agent, the tricyclodecenyl isobutyrate is synthesized. An acetylation reaction is directly carried out to prepare a crude product of the tricyclodecenyl isobutyrate by one step through electrophilic addition under catalysis of a catalyst. Meanwhile, a less amount of the isobutyric anhydride is added for protecting the catalyst, and then the isobutyric acid is recycled and reused so that a finish product of the tricyclodecenyl isobutyrate is obtained through neutralization washing and rectification. The method can solve problems that the spice has a sour smell in fragrance and the quality of the spice is influenced since a method in the prior art pollutes environment, is complex in post-treatment process, causes equipment corrosion and is uncooperative in ratio of isomers. The method employs the raw materials being easy to get, is mild in conditions, is high in conversion rate, is convenient to carry out, is high in yield, is less in emission of waste gas, waste water and solid waste during production and belongs to a clean production process.

The invention discloses an unpowered current-limiting intelligent intercepting well with an overflow grating. The intelligent intercepting well comprises a sewage inlet pipe, the overflow grating, an overflow water outlet pipe, an unpowered current limiter, an intercepting sewage pipe and a partially filled pipe flow meter. The overflow grating is arranged in the well and located in front of a water outlet of the overflow water outlet pipe. The unpowered current limiter is arranged in the well and located in front of a water outlet of the intercepting sewage pipe. The partially filled pipe flow meter is arranged in the overflow water outlet pipe. The intercepting well reduces overflow pollution, the interception ratio is increased, pressure of a downstream sewage pipeline is relieved, the discharge amount of a combined system pipe network can be accurately limited, quantitative control of sewage or early-stage rainwater pollutants is achieved, remote operation can be achieved, maintenance and management work is reduced, and the intercepting well has the advantages that sewage interception is stable, impurity interception is remarkable, monitoring and operation are intelligent, and the intercepting well accords with national situations of China.

The invention discloses a technology of spraying electrode while depositing film in the manufacture of a flexible film photovoltaic battery, which relates to a technology of spraying electrode while depositing film in PEVCD (Plasma Enhanced Chemical Vapor Deposition) preparation, and comprises a vacuum device internally provided with a spraying electrode and a matrix electrode. The electrodes are connected with an outer radio frequency power supply; battery base materials are attached on the electrodes; the spraying electrode is internally provided with a gas channel, and the spraying electrode and the battery base materials attached on the spraying electrode are provided with small holes; the two groups of small holes are in one-to-one correspondence and are arranged according to a matrix or a concentric circle array; and gas is vertically sprayed to the battery base materials on the matrix electrode through the two groups of small holes, so that the battery base materials on the electrodes can be sprayed simultaneously when the sprayed gas is obtained, thus realizing film deposition. Therefore, the surfaces of the battery base materials on the electrodes are subjected to film deposition, and the film photovoltaic battery can be prepared. The productivity of a device can be multiplied, and the electrode cleaning workload can be greatly reduced.

The invention discloses recycling equipment for scrapped automobiles. The recycling equipment for the scrapped automobiles comprises a workbench, a plurality of fixing devices arranged on the workbench, a plurality of cutting devices respectively arranged on the fixing devices, a cleaning device arranged on the workbench, and a transmission device used for connecting the cleaning device and the fixing devices; each fixing device comprises a track, a sliding block arranged on the track, a fixing rod arranged on the sliding block, a first fixing block arranged on the sliding block and a second fixing block arranged on the fixing rod; and the sliding blocks can move relative to the tracks, the first fixing blocks can rotate relative to the sliding blocks, the second fixing blocks can rotate relative to the fixing rods, and the first fixing blocks and the second fixing blocks are arranged in a matched mode. According to the recycling equipment for the scrapped automobiles, the stability when scrapped automobile outer tires are fixed is increased, and the adaptability when the outer tires with different sizes and specifications are fixed is improved.

The invention discloses a flax separation cleaning device comprising a feed hopper installed on a rack, a material conveying belt, a lifting auger, a discharge pipe, a screening box and a winnowing pipe. The feed hopper is fixed to the top of the rack. The material conveying belt is located under the feed hopper. A discharge channel is arranged at the bottom of the right end of the material conveying belt. The discharge channel is connected with a feed inlet formed in the discharge pipe. A helical blade is arranged in the discharge pipe and is fixed to a rotary shaft. The rotary shaft is connected with the output end of a gear motor. The flax separation cleaning device has the beneficial effects that impact can be generated between flax lumped with clods and other impurities, and a separation cone, separation of the flax and the clods is achieved through impact, the separated clods are screened out through a filter screen, the design of the winnowing pipe can remove light impurities through window power, the cleanliness of flax raw materials can be ensured effectively, subsequent cleaning processing work is reduced, and quality of flax oil is promoted.

The invention relates to a multi-grade seed cotton heavy impurity clearing and separating device and belongs to the technical field of cotton machining machines. The multi-grade seed cotton heavy impurity clearing and separating device is installed at the back end of a picking platform of a mechanical cotton harvester. A seed cotton flow cluster picked by a cotton picker is conveyed by the picking platform to the multi-grade seed cotton heavy impurity clearing and separating device. The multi-grade seed cotton heavy impurity clearing and separating device is of a long-strip sequentially layered structure as a whole and comprises a first-grade heavy impurity removing mechanism, a second-grade heavy impurity recycling mechanism, a third-grade heavy impurity recycling mechanism and a pipeline enabling the first-grade heavy impurity removing mechanism, the second-grade heavy impurity recycling mechanism and the third-grade heavy impurity recycling mechanism to be connected. According to the multi-grade seed cotton heavy impurity clearing and separating device, multi-grade sequential clearing is adopted during heavy impurity clearing, the impurity clearing rate is high, the seed cotton loss is low, and secondary impurities mixed with the seed cotton in the clearing process are reduced; graded recycling of cotton bolls and branches is achieved, the phenomenon that cotton fiber is dyed in the follow-up cotton boll processing process is reduced, and the work efficiency of an onboard seed cotton pre-processing machine is improved; and a tangential flow guide grid has the functions of clearing a part of cotton leaves, dust and the like. The multi-grade seed cotton heavy impurity clearing and separating device is suitable for seed cotton heavy impurity clearing of the cotton picker, an on-site seed cotton pre-processing machine and the like.

The invention belongs to the technical field of cleaning equipment, and particularly provides a self-cleaning method of a surface cleaning machine, the surface cleaning machine comprises a cleaning roller driven by a driving motor, a dirt suction device driven by a dirt suction motor and a liquid supply device, and the dirt suction device comprises a dirt suction port, a dirt containing barrel and a dirt suction pipeline connecting the dirt containing barrel and the dirt suction port. The self-cleaning method comprises the following steps: step A, a cleaning roller cleaning stage; step B, a dirt suction stage; c, a stage of cleaning the sewage suction pipeline: the sewage suction motor is started, the suction power of the sewage suction motor is P1, P1 is larger than or equal to 0.3 P and smaller than 0.5 P, the sewage suction device sucks the cleaning liquid into the sewage suction pipeline through the sewage suction opening, the cleaning liquid flows up and down in the sewage suction pipeline to continuously wash the inner wall of the sewage suction pipeline and the sewage suction opening, and the inner wall of the sewage suction pipeline and the sewage suction opening are cleaned. According to the self-cleaning method, after the cleaning roller is automatically cleaned, the dirt suction opening and the dirt suction channel are independently cleaned, the cleaning efficiency is high, and the cleaning effect is good.

The invention discloses a metal powder core welding wire for high-strength steel Ar-CO2 gas shielded welding. The metal powder core welding wire for the high-strength steel Ar-CO2 gas shielded welding comprises a steel coating and a powder core, wherein the powder core comprises the following elements in percentage by mass relative to the percentage of total mass of the welding wire: 0.02-0.12% of C, 0.2-0.7% of Si, 1.0-3.0% of Mn, 1.0-3.5%of Ni, 0.001-0.015% of B, 0.1-0.7% of Cr, not greater than 0.05% of Al, 0.3-0.6% of Mo, 0.01-0.4% of Mg, 0.02-0.06% of Zr, 0.5-1.5% of W, and 0.10-1.00% of rare earth element. According to the metal powder core welding wire for the high-strength steel Ar-CO2 gas shielded welding, all components synergistically act, so that the low-temperature impact toughness of weld joint metal is high; the tensile strength and the extension strength of deposited metal are beyond 1000MPa; and high-strength steel can be welded.

The invention relates to a dustproof structure for a blast furnace top charging bucket. The dustproof structure comprises a material accumulation table, wherein a corrugated pipe is arranged on the outer side of the material accumulation table; a pipeline is connected outside the corrugated pipe; compressed air is communicated with the pipeline; the pipeline is provided with a manual valve, an electromagnetic valve and a pressure interlocking switch; the electromagnetic valve and the pressure interlocking switch are connected with a background system; hard sponge is arranged on the inner wallof the corrugated pipe; the hard sponge is divided into at least three blocks along the inner wall and the blocks of the sponge are connected with each other through bolts; a plurality of pieces of soft sponge are arranged on the other side of the hard sponge. The pressure intensity is increased through additionally arranging the dustproof structure and compressed air; dust is prevented from beingaccumulated between the corrugated pipe connected between an upper material tank and a lower material tank and the material tank; the weighing of the lower material tank is prevented from being influenced, and stable and smooth production of the blast furnace is guaranteed. On-site ash removal operation is reduced, energy conservation and environmental protection are achieved, and on-site flyingdust is prevented from polluting the environment.

The invention discloses an orthopedic dressing change device which comprises a bottom plate, a base and a bearing plate, wherein the upper end of the bottom plate is connected to the lower end of thebase through an electric telescopic rod; the bearing plate is mounted at the upper end of the base; an infrared heater is mounted inside the base; a placement plate is arranged in the middle of the bearing plate; a through hole is formed inside the placement plate; a protective pad is arranged at the upper end of the placement plate; a supporting rod is arranged on the side surface of the base; across rod is erected at the end part of the supporting rod; an ultraviolet lamp is mounted at the lower end of the cross rod; a fastener base is arranged on one side of the upper end of the bearing plate; the other side of the upper end of the bearing plate is connected with a fastener plug through an elastic band; dressing change use is completed through steps of preheating of the bearing plate,fixing of a wounded part, height adjustment, sterilization, disinfection and the like in sequence. The orthopedic dressing change device is simple in structure, can improve the use comfort, kill germsin time, avoid interactive infection and reduce the labor of medical staff, and is safe and convenient to use.

The invention relates to the technical field of sea cucumber culture, in particular to a full-automatic bait feeding system for a sea cucumber culture pond. The full-automatic bait feeding system forthe sea cucumber culture pond comprises a plurality of material cylinders, wherein a first feeding pipe is arranged on the top surface of each material cylinder, and the pipe opening in the other endof each first feeding pipe is connected with a material grinding machine; each material cylinder is provided with a stirrer; communication pipes are arranged among the material cylinders, and an electromagnetic valve is arranged on each communication pipe; the outer side surface of each material cylinder is provided with a sewage discharge port, each sewage discharge port is connected with a watertreatment system through a sewage discharge pipe, and the other end of each water treatment system is connected with a first culture pond through a wastewater treatment pipeline; and the two sides ofthe inside of the first culture pond are correspondingly provided with a plurality of culture bins, and two-way nozzles are arranged in each culture bin. The full-automatic bait feeding system for the sea cucumber culture pond has the advantages that the labor cost can be reduced, the working efficiency is improved, feeding time and feeding amount are accurately controlled, residual material cleaning operations are reduced and the like.

The invention discloses a mud tank for well drilling. A main body is of a cuboid tank shape and comprises a tank body side plate and a tank body bottom plate, a bottom plate supporting structure is arranged below the tank body bottom plate, the tank body side plate is divided into an upper tank body side plate portion and a lower tank body side plate portion, each short side of the lower tank body side plate portion is a vertical side plate, and each long side of the lower tank body side plate portion is a one-quarter arc plate bent inwards. An upper side plate reinforcing rib plate is fixedly arranged on the periphery of the position, at an upper opening of the tank body, of the tank body side plate, and a middle side plate reinforcing rib plate is fixedly arranged on the periphery of the position, at the joint of the upper tank body side plate portion and the lower tank body side plate portion, of the tank body side plate. The mud tank for well drilling is superior and more reasonable in structure, can meet strength requirements, can also be used for completing mud stirring more uniformly and thoroughly, and reduces the production and use cost.

The invention discloses a flushing device for an anchor connecting steel wire rope of a platform maintenance work ship. The flushing device comprises a water collecting tank drainage mechanism, a dirt removing mechanism and a water spraying flushing pipe. The water collecting tank drainage mechanism comprises an upper water collecting tank and a lower L-shaped drainage pipe. The lower end of the water collecting tank is fixedly connected with the upper end of the L-shaped drainage pipe. The end of the lower end of the L-shaped drainage pipe penetrates out of a cable barrel base to lead to an outboard part. Grooves for the anchor connecting steel wire rope to horizontally pass through are formed in the upper portions of the two opposite side walls of the water collecting tank. The dirt removing mechanism is arranged in the water collecting tank and comprises two sets of flexible scraper combinations. An annular pipe at one end of the water spraying flushing pipe is located between the two flexible scraper combinations. The anchor connecting steel wire rope penetrates the annular pipe, the other end of the water spraying flushing pipe is fixed to the box wall of the water collecting tank and penetrates the water collecting tank to be connected with a water inlet pipe. The flushing device is small in size, simple in structure and convenient to use and maintain. The service life of a winch roller and the anchor connecting steel wire rope is prolonged, and the work efficiency is improved.

The invention discloses a method for marking a corner of a vacuum heat collecting tube by using corner scales. The vacuum heat collecting tube manufactured according to the method and provided with corner scale marks is characterized by being provided with the corner scale marks uniformly distributed according to the circumference angle of 360 degrees. The method has the advantages that: the vacuum heat collecting tube is provided with the corner scale marks and additional marks; and when the heat collecting tube is horizontally arranged to collect heat and scales formed non-uniformly according to the circumference angle of 360 degrees are formed on the inner wall of an inner glass tube, the scales can be arranged continuously or relatively uniformly by rotating the heat collecting tube, and water is lifted by using the capillarity of the continuously or relatively uniformly arranged scales, so that the inner wall of the heat collecting tube carries water uniformly to realize heat exchange of two-phase flow by the capillarity of the scales when the water level in the horizontally arranged heat collecting tube cannot reach the top. An embodiment is provided by combining the drawing.

The invention relates to a drain device (5) for discharging waste water, having an upper edge surface (65) forming an outer perimeter of the drain device (5), a support surface (40) for supporting a cover member such that essentially, the walkable surface thereof extends flush with the upper edge surface (65), and having a bottom (10) for catching, and for conveying waste water to an opening (82) of an outflow connecting pipe (80). The upper edge surface (65), the support surface (40), and the bottom (10) are connected to one another by way of connection walls (25, 50) extending essentially vertically when in use. At least one part of the support surface (40) is formed in a sloping manner in the direction of the bottom (10) such that during use, waste water, which reaches the support surface (40), flows in the direction of the bottom (10).

The invention discloses a recording file processing method, which is used for solving the problems that the cleaning operation efficiency of the recording file is low and the arrangement is not standardized easily. The method provided by the invention comprises the following steps: obtaining an uploaded recording file and an original text corresponding to the recording file; invoking a speech recognition interface to perform speech recognition on the recorded file to obtain recognized text; judging whether the recognized text is consistent with the original text; if consistent, the recording file is stored in a preset model training set; if not, the recording file is recorded to the directory to be cleaned, and the recording file recorded in the directory to be cleaned is listened by the processing personnel and fed back to the correct recording text; obtaining the cleaned recording file and the corresponding recording text in the directory to be cleaned; the cleaned recording file andthe corresponding recording text being stored in the model training set. The invention also provides a recording file processing device, a computer device and a storage medium.

The invention discloses multifunctional tableware which comprises a handle. The tableware is characterized in that a shell is arranged at one end of the handle, a first sharp fork is arranged in the middle of the outer end of the shell, a first baffle is arranged at the end, close to the shell, of the first shark fork, second baffles are symmetrically arranged on the two sides of the inner wall ofthe shell, the first baffle and the second baffles are staggered in position, a second sharp fork is movably arranged between the first baffle and the second baffles, a transformation driving mechanism capable of connecting the second sharp fork with the first sharp fork and separating the second sharp fork from the second sharp fork is arranged in the handle. By arranging the transformation driving mechanism, the tableware can be transformed rapidly between a fork and a spoon, the cleaning work is quite conveniently and effectively reduced during a meal, and the tableware is simple in structure and convenient to use.

The invention provides a greenhouse fresh air system, a greenhouse, an automatic control method and device of the greenhouse, electronic equipment and a computer readable storage medium. The greenhouse fresh air system comprises an air conditioning chamber, air supply equipment, air conditioning equipment, and monitoring equipment. The air conditioning chamber is configured to be arranged on the inner side of an outer wall of the greenhouse and adjacent to the outer wall of the greenhouse; the air conditioning chamber comprises a first ventilation window capable of being communicated with the interior of the greenhouse and a second ventilation window capable of being communicated with the natural environment outside the greenhouse; the air supply equipment is arranged in the air conditioning chamber and is configured to convey air entering the air conditioning chamber into the greenhouse; the air conditioning equipment is arranged in the air conditioning chamber and is configured to regulate the state of air entering the air conditioning chamber; and the monitoring equipment is configured to be arranged in the greenhouse and monitor parameters of air in the greenhouse. According to the technical scheme, the requirement of plants in the greenhouse for the air state can be met, the internal environment of the greenhouse is kept clean, and the use cost and the cleaning work of an insect-proof net are reduced.

The invention discloses a cooking gas stove. The cooking gas stove comprises a filtering type kitchen ventilator exhaust duct. The filtering type kitchen ventilator exhaust duct is provided with a plurality of filtering nozzles, a plurality of filtering elements, a plurality of filtering nozzle mounting bases, a filtering nozzle mounting plate, a plurality of filtering nozzle mounting holes, an exhaust duct joint and an exhaust pipe. By adoption of the cooking gas stove with the filtering type kitchen ventilator exhaust duct, pollution of fume to the environment and atmosphere is greatly reduced, and meanwhile the work of cleaning a kitchen ventilator is omitted. Every time the cooking gas stove is cleaned, a filtering screen only needs to be replaced instead of being cleaned.

The invention provides a novel sealing strip which comprises a main body, wherein the main body is provided with a hollow inner cavity; the outer end face of the main body is a raised circular arc surface. The invention also provides a sealing method for preventing slurry leakage. According to the sealing strip and the sealing method provided by the invention, cement slurry can be completely prevented from overflowing during casting, the construction quality is improved, the wall surface can reach the effect of a dry wall, and subsequent cleaning work for an aluminum alloy template, an aluminum alloy member and accessories is reduced.

The invention provides an automatic liquid supply brush. The brush comprises bristles, an iron sheet ferrule, liquid outflow tube holes, liquid outflow tubes, a liquid distributing tube, liquid inflow holes, a brush head, clamping bolts and nuts, an end plug, a handle, a liquid supply hole, a flow switch, a pressure tank, a coating tank, fixed seats, movable seats, compression bolts, a tank cover, an O-shaped ring, a coating liquid, a stirring shaft, a pressure regulating valve, an air inflow tube, a stirrer assembly, a liquid outflow tube, a deflation valve, a safety valve, a filtering screen, an impeller, a fastening screw, a compression sleeve, seal rings, a mounting sleeve, bearings, a locating sleeve, inner clamping springs, outer clamping springs, a working hole, fixing bolts, a transition shaft, a flange and a speed reducer. The brush has the beneficial effects as follows: 1. the brush can supply a liquid continuously, the work efficiency is high, and coating liquid waste and pollution are reduced; 2. an independent brush head is arranged and can be replaced at any time, and the cost is reduced; 3. air pressure is used as a power source, and a plurality of brushes can operate simultaneously; 4. as long as a pressure cylinder is provided, the brush can operate normally in construction sites and remote villages without electricity.