27results about How to "High decontamination efficiency" patented technology

The microbial petroleum decontamination wastewater treatment device comprises an oil separation tank, pump bodies are installed at the front center and the rear center of the oil separation tank, an inclined plate is attached to the bottom of the oil separation tank, openings are formed in the positions, close to the top, of the front side and the rear side of the oil separation tank, and two penetrating openings are formed in the top of the oil separation tank; through mutual cooperation of the L-shaped fixing plate, the positioning plate, the movable plate, the rack, the reciprocating plate, the annular plate, the motor, the discharging box, the connecting plate, the guide plate, the L-shaped welding plate, the electric pole and other components, the oil separation tank can be used for oil separation, and the oil separation tank can be used for oil separation. When oil and suspended solids need to be removed, surface charges of oil drops can be reduced by scattering microorganisms, the oil drops are promoted to coalesce and float upwards, and the oil-water separation efficiency is improved.

The invention discloses a multistage sewage treatment device and method combining biological treatment and electro-Fenton, and relates to the field of water pollution control, the device is composed of a three-chamber microbial fuel cell reactor, and the three-chamber microbial fuel cell reactor is sequentially composed of a microbial anode chamber, an electro-Fenton cathode chamber and a photosynthesis chamber from left to right. The biological anode chamber consists of filled anaerobic granular sludge and a carbon brush electrode serving as an electron collector; and the core structure of the electro-Fenton cathode chamber is a gas diffusion cathode loaded with nano FeCo2O4. The microbial anode chamber and the electro-Fenton cathode chamber are isolated by a proton exchange membrane, and the gas diffusion electrode separates the electro-Fenton cathode chamber and the photosynthesis chamber at the same time. According to the invention, the combination of two clean energy sources, namely microbial energy and light energy, is realized, the efficient removal capability of aerobic and anaerobic biological treatment technologies and the synergistic mechanism of microorganisms and algae for purifying sewage are combined, the efficiency of the microbial fuel cell is further optimized, and the removal of ammonia nitrogen and refractory organic pollutants in the sewage is realized.

The invention discloses a surface cleaning device with good decontamination effect, comprising a floor brush with a roller brush, the floor brush is provided with a decontamination device abutting against the roller brush, the decontamination device comprises a scraping piece, a combing piece located below the scraping piece, the combing piece is provided with a plurality of comb teeth and a connecting portion extending from the comb teeth to the lower surface of the scraping piece, the connecting portion abuts against the lower surface of the scraping piece, the comb teeth and the connecting portion form a front combing surface, the front combing surface abuts against the roller brush, the scraping piece extends in the direction of the roller brush over the front combing surface, the liquid flow scraped by the scraping piece forms a filling area between the connecting portion and the lower surface of the scraping piece, the liquid flow in the filling area gathers and increases pressure to flush the gap between the comb teeth. The surface cleaning device not only has a good effect in treating general garbage, but also does not leave entangled objects such as hair on the roller brush, does not require customers to manually clean the roller brush, has high dirt suction efficiency, good dirt suction effect, is more intelligent and humane, and has a good customer experience.

According to the method for cleaning dirt and blockage of the electrodialyzer, on the basis that the electrodialyzer is not disassembled and detected, microorganisms, organic dirt and blockage and inorganic dirt and blockage in the electrodialyzer are efficiently removed through the cooperation mode of circulating sterilization, alkali washing and acid washing, damage to a membrane is reduced, and the production cost is reduced. After the electrodialyzer is cleaned through the method, the water treatment amount, the flow speed and the ion migration efficiency of the electrodialyzer can be effectively recovered, and the designed flux is achieved; meanwhile, the temperature rise of the electrodialyzer can be delayed, the service cycle of the electrodialyzer is prolonged, and the energy consumption of the electrodialyzer is reduced. The method is suitable for cleaning organic sewage plugs and inorganic sewage plugs of heterogeneous membrane electrodialyzers, semi-homogeneous membrane electrodialyzers, homogeneous membrane electrodialyzers, bipolar membrane electrodialyzers and the like, and is wide in application range and high in decontamination efficiency.

The utility model provides a kind of wastewater treatment system of reinforced AOA-MBBR process stable operation, including secondary sedimentation tank, the periphery of secondary sedimentation tank is sequentially provided with anaerobic tank, first MBBR aerobic tank, second MBBR aerobic tank, first anoxic tank, second anoxic tank, filter tank;First and second MBBR aerobic tank are equipped with several combined suspended fillers, the outlet of two MBBR aerobic tanks is installed with cylindrical screen, and float ball liquid level meter, aerator are installed in the pool, online dissolved oxygen instrument and ammonia nitrogen on-line monitor are installed in second MBBR aerobic tank, float ball liquid level meter, online dissolved oxygen instrument and ammonia nitrogen on-line monitor are respectively covered with a protective cover outside.AOA-MBBR process is formed by coupling MBBR process and AOA process, wastewater is treated by anaerobic, aerobic, anoxic alternation state, improves total nitrogen and total phosphorus removal rate biological treatment, maximally utilizes raw water organic matter and internal carbon source to achieve the purpose of strengthening biological denitrification and phosphorus removal.

The utility model discloses a simulation decontamination device of ecological ditch, including the ditch, the matrix of the bottom of ditch is laid and plants hydrophyte can adsorb pollutant, the first side of ditch is equipped with a plurality of first fender, the second side of ditch is equipped with a plurality of second fender, the first fender with the second side of ditch has the gap between, the second fender with the first side of ditch has the gap between, a plurality of the first fender with a plurality of the second fender alternate arrangement, the first fender with the second fender between adjacent has the gap. The utility model has the advantages of simple structure, simulation effect is good and decontamination ability is strong.

The application provides a clothes decontamination method and device, a clothes treatment equipment and a storage medium. The method comprises the following steps: receiving an opening instruction of a dry cleaning program, and controlling a fan to be opened; controlling a steam device to be opened, determining whether the opening time length of the steam device reaches a first preset time length, and controlling a solution feeding device to be opened; determining whether the opening time length of the solution feeding device reaches the first preset time length, and controlling the solution feeding device and the steam device to be closed; and controlling the fan and a heating pipe in a drying channel to be opened. The steam is used to sufficiently wet the load, so that the stains attached to the surface or the inside of the fiber are softened by the steam and separated from the fiber. The dry cleaning solvent is mixed in the steam and penetrates into the load, so that the stains are dissolved in the dry cleaning solvent or the steam to form liquid crystals, and the decontamination efficiency is improved. The steam and the dry cleaning solvent are volatilized by hot air, the stains dissolved in the dry cleaning solvent or the steam are taken away, and the stains are removed in a trace water environment. The fabric does not need to be sent to a dry cleaning shop for cleaning, and the cost of fabric decontamination treatment is reduced.

The invention discloses a floor brush rolling body dust collection structure which comprises a floor brush body, a floor brush mechanism is arranged in front of the floor brush body, the floor brush mechanism comprises an auxiliary rolling brush, a ground rolling brush and a side wall rolling brush, the auxiliary rolling brush and the ground rolling brush are sequentially arranged front and back, and the auxiliary rolling brush and the side wall rolling brush are coaxially distributed. A dust collection mechanism is arranged above the floor brush body and comprises a dust collection pipeline connected with a dust collection channel in the floor brush body in a penetrating mode, and a main dust collection window and an auxiliary dust collection window are formed in the front face, the left side face and the right side face of the dust collection pipeline respectively. According to the floor brush rolling body dust collection structure, through the main abutting sliding plate and the auxiliary abutting sliding plate which protrude out of the front end and the side face of the floor brush body, in the dead corner cleaning process of the auxiliary rolling brush and the side wall rolling brush, the corresponding main dust collection window and auxiliary dust collection window are opened, and in the dead corner cleaning process, auxiliary dirt is sucked and recycled; therefore, the suction force and the decontamination efficiency in the dust collection process are improved.

The application belongs to the technical field of seamless steel pipe surface treatment, and discloses a seamless steel pipe surface decontamination device and a use method thereof, which comprises a treatment box, a gap is formed in the side surface of the treatment box, and a movable baffle is movably sleeved in the inner wall of the treatment box. The application realizes local cleaning of the seamless steel pipe in the local space at the bottom, and realizes comprehensive decontamination and cleaning in the rotating process by cooperating with the self-rotation effect. In the actual decontamination and cleaning process, the active adjustment of the cleaning angle of the seamless steel pipe is reduced, the operator can clearly monitor the decontamination and cleaning environment on one side, the decontamination and cleaning of the large-volume seamless steel pipe is realized, the convenience of decontamination operation is greatly improved, the decontamination efficiency is improved, the actual decontamination situation of the seamless steel pipe with different pollution conditions can be observed, the decontamination and cleaning process can be timely controlled, the decontamination and cleaning is not incomplete in the fixed time, the decontamination time is not too long, and resources are not wasted, and the use effect is good.

This utility model provides a cleaning device for car door handles and a vehicle, relating to the field of vehicle cleaning technology. The cleaning device for car door handles includes: at least one nozzle structure, at least one delivery channel, and a medium pressurizing structure. The medium pressurizing structure pressurizes the cleaning medium and inputs the pressurized cleaning medium into the delivery channel. The first end of the gradually expanding cavity of the nozzle structure is connected to the delivery channel, which inputs the cleaning medium into the gradually expanding cavity through the first end. The second end of the gradually expanding cavity is the outlet end of the cleaning medium, and the diameter of the first end of the gradually expanding cavity is smaller than the diameter of the second end. The extension line of the direction in which the cleaning medium is ejected from the outlet end is parallel or nearly parallel to the outer surface of the car door handle. The cleaning medium ejected through the outlet end is a planar fluid that cleans the outer surface of the car door handle. This solution improves the cleaning efficiency of the outer surface of the car door handle, and the control and cleaning methods are simple and easy to operate.

The present invention belongs to the technical field of internal contamination of valve chambers, and specifically relates to an automatic device and method for removing radioactive contamination from valve chambers, including a movable trolley, a filter, a fluid transmission pump, a mechanical arm, and a connecting pipe. The device and method can replace manual work to automatically remove radioactive substances deposited inside the valve chamber, residual radioactive liquid, and metal particles generated by grinding, thereby reducing the risk of radiation exposure and contamination of personnel, improving the decontamination effect, reducing the radiation source items of the unit, reducing the amount of radioactive waste generated, and improving on-site work efficiency.

The invention discloses an automatic decontamination device and method for a steam generator, and the device comprises a pressurization mechanism which is used for guaranteeing the sealing performance of the interior of the steam generator, a liquid discharge mechanism which is used for discharging the waste liquid after decontamination and cleaning out of the steam generator, and a spraying mechanism which is used for spraying a decontaminant to the inner surface of the steam generator. The spraying mechanism comprises a multi-path pesticide supply mechanism, a decontamination mechanical arm and a decontamination hose fixed to the decontamination mechanical arm, an outlet of the decontamination hose is connected to a spray head, the decontamination mechanical arm is composed of a mechanical arm fixed section, a rotary link, a mechanical arm movable section, a rotary connecting rod, the spray head and the decontamination hose, the mechanical arm movable section can rotate by 360 degrees, and the spray head is connected with the rotary connecting rod. By combining the mechanical arm with the space capable of rotating by 360 degrees and the spray head, the foam detergent is sprayed to the water chamber on the lower portion of the steam generator and other surfaces needing to be decontaminated, then clean water is used for flushing the foam detergent thoroughly, waste liquid is discharged into the waste liquid box for treatment, the method is simple, the decontamination effect is good, and the decontamination efficiency is improved.

The present invention discloses a porous carbon ball loaded bismuth oxyhalide hybrid material and its application in the photocatalytic degradation of heavy metal salts, belonging to the technical field of cleaning materials. The present invention first wraps silica microspheres with dopamine, then calcines under an inert atmosphere, adds the obtained product to a hydrofluoric acid aqueous solution, filters, washes and dries to obtain an intermediate product carbon sphere; then adds the obtained carbon sphere to an ethylene glycol solution of bismuth nitrate pentahydrate and hexadecyltrimethylammonium bromide, ultrasonically stirs, and finally adds potassium salt KX, and then transfers the mixture to a high-pressure reactor for heating and reaction, and filters, washes and dries after the reaction to obtain a porous carbon ball loaded bismuth oxyhalide hybrid material. The hybrid cleaning material of the present invention has excellent light absorption capacity in both ultraviolet and visible light regions, is suitable for photocatalytic degradation of heavy metal salts, and has the advantages of low cost, wide applicability, high cleaning efficiency, and mild cleaning conditions.

An indoor decontamination device which can realize a perfect decontamination effect by supplying a proper amount of a decontamination mist to each corner of a decontamination target room and improve an efficiency of a decontamination work by shortening a work time for an aeration or the like is provided. A fine decontamination mist with a favorable decontamination efficiency is employed, and a decontamination device main-body and a mist discharging dispersion device are provided. The decontamination device main-body includes a drive means and a liquid supply means for a decontamination chemical solution. The mist discharging dispersion device includes a mist discharging means and a mist dispersion means. The mist discharging means converts the decontamination chemical solution to the decontamination mist and supplies it into an inside of a work room. The mist dispersion means causes an acoustic flow to be generated by subjecting a vibration board to an ultrasonic vibration, causes a pressing force by an acoustic radiation pressure to act on the decontamination mist supplied into the work room, and causes the decontamination mist to be dispersed into the work room.

The invention provides a continuous cleaning and grading integrated treatment device for crayfish, which belongs to the field of aquatic product processing, and comprises a bearing chassis and an angle adjusting assembly for adjusting the gradient of a water filtering rotary cylinder. And the water filtering rotary cylinder is rotationally mounted between the first end seat and the second end seat and is internally provided with a shifting plate. The centering sleeve is fixed between the first end seat and the second end seat, and a rotating spindle driven by the first driving assembly is arranged in the centering sleeve. The rotating main shaft is in transmission connection with a plurality of rotating branch pipes with cleaning brushes through gears, and the second driving assembly independently drives the water filtering rotating cylinder to rotate. The device further comprises a cleaning water supply assembly and a grading assembly. According to the device, combined movement of the water filtering rotary cylinder and the inner rotary branch pipe is achieved through the dual-drive system, the functions of dynamic scrubbing, turning conveying and angle self-adaptive adjusting are coupled, cleaning dead corners are effectively eliminated, the cleanliness is improved, meanwhile, continuous automatic grading is achieved, and the production efficiency and quality consistency of crayfish pretreatment are remarkably improved.

The utility model relates to a hydraulic oil detecting and cleaning system and a rotary drilling rig, and the hydraulic oil detecting and cleaning system comprises an oil return path which is configured to guide hydraulic oil in the system to flow back to an oil tank; the oil liquid detector and the speed regulating valve are connected to the detection oil way in series, and the speed regulating valve is configured to enable the flow entering the oil liquid detector to be kept stable; the filter is arranged on the oil return path and is used for filtering dirt in the oil return path; and the controller is electrically connected with the oil liquid detector and is configured to be capable of receiving a detection result of the oil liquid detector and controlling the state of the oil return path. The hydraulic oil detecting and cleaning system integrates the hydraulic oil pollution degree real-time detection function and the hydraulic oil cleaning function, the hydraulic oil filtering and cleaning function can be achieved, and the reasonable and economical oil change period is determined.

The invention belongs to the technical field of flushing fluid for an electric automobile cooling system, and particularly relates to low-conductivity flushing fluid for the electric automobile cooling system as well as a preparation method and application of the low-conductivity flushing fluid. The flushing fluid is prepared from the following components in parts by mass: 74.04 to 79.88 percent of deionized water, 20 to 25 percent of an alcohol solvent, 0.05 to 0.30 percent of a nonionic surfactant, 0.05 to 0.40 percent of a chelating agent, 0.005 to 0.05 percent of an anticorrosive agent, 0.001 to 0.02 percent of a silicon-based defoaming agent and 0.01 to 0.20 percent of a buffering agent, and the silicon-based defoaming agent exists in the form of a nano dispersion. The invention relates to a nanotechnology low-conductivity flushing fluid which is based on an ethylene glycol solvent system with the same polarity as a cooling liquid and has the advantages of cleaning power, low conductivity, corrosion resistance and foam inhibition.

This utility model discloses a metal surface processing and decontamination device, relating to the field of metal processing and decontamination. It includes a workbench with a first mounting plate on top. A rack is fixedly mounted on the bottom of the first mounting plate, and a sliding wheel is rotatably connected to the bottom of the first mounting plate. A slide rail is provided on the top of the workbench. Through the cooperation of the sliding wheel and the slide rail, the rack on the first mounting plate slides, thereby driving the meshing gears to rotate. The rotation of the rotating plate on the gear drives the support plate on the mating sliding plate to rotate. With the cooperation of the screw inside the sliding groove, the support plate slides, allowing the metal to be turned and moved during the spraying process, cleaning hard-to-reach corners and improving decontamination efficiency.

The present invention relates to a saccharification pot cleaning method, system and intelligent terminal, and relates to the technical field of intelligent cleaning, which includes obtaining a working signal of a saccharification pot; based on the consistency of the working signal and the standby signal, controlling a cleaning device to enter the saccharification pot to perform rough cleaning on the pot with a rough cleaning force value; obtaining image information in the pot; selecting and marking a stubborn stain area from a stain database according to the image information in the pot and the stain characteristics; controlling a scraping device to go to the marked position to scrape the stubborn stains in the stubborn stain area with a scraping force value, and obtaining the scraped image information after scraping; based on the fact that the scraped image information contains a stain residue feature, controlling a decontamination device to remove the stain residue feature with a decontamination method; after the stain residue feature is removed, controlling the cleaning device to perform overall flushing on the inside of the saccharification pot. The present application has the effect of improving work efficiency.

The invention belongs to the technical field of chemical decontamination of nuclear power stations, and relates to a mechanical auxiliary chemical decontamination device and a use method thereof. Comprising a roller grinding machine, a grinding material and a to-be-decontaminated part are added into a roller of the roller grinding machine, the roller grinding machine is started to enable the grinding material and the to-be-decontaminated part to generate relative vibration, then friction decontamination is conducted on the to-be-decontaminated part through the grinding material, and a large amount of dirt can be preliminarily removed through physical decontamination; and the amount of decontamination liquid required by chemical decontamination is reduced, the treatment time is shortened, and chemical pollution is reduced. The decontamination solution box is communicated with the spraying head through a conveying pipeline, a decontamination circulating pump is arranged on the conveying pipeline, and the decontamination solution is pumped out of the decontamination solution box through driving of the decontamination circulating pump, conveyed to the spraying head through the conveying pipeline and directly sprayed to a part to be decontaminated in the roller for chemical decontamination. And the decontamination solution can take away dust generated by friction, so that dust pollution is avoided. By combining the characteristics of chemical and physical decontamination, the decontamination efficiency is improved.

This application provides a microphone cleaning device and a vehicle. The microphone cleaning device is applied to a vehicle, with a microphone mounted on the vehicle's outer surface. The device includes a nozzle, a delivery channel, and a power unit. The nozzle faces the microphone, and the delivery channel is connected to both the nozzle and the power unit, conveying a fluid for cleaning the microphone. The power unit provides power to the fluid, the delivery channel conveys the fluid, and the nozzle sprays the fluid towards the microphone to clean it. This improves the intelligence and efficiency of the microphone cleaning process.

The present application relates to the field of sanitary ware, and discloses a nozzle sterilization method of an intelligent closestool, comprising the following steps: step 100, a user starts a cleaning function; step 400, a spray rod is in an extended state, and a water outlet sprays hot water to perform flushing; step 500, the water outlet stops spraying water, and then the spray rod is retracted; step 800, a light-emitting part of a UV lamp assembly is turned on to perform sterilization; and step 900, the light-emitting part of the UV lamp assembly is turned off; wherein, steps 200 and 300 are arranged between step 100 and step 400; step 200, the spray rod is in a retracted state, the water outlet sprays hot water to flush the UV lamp assembly; step 300, the water outlet stops spraying water, and then the spray rod is extended; and / or, steps 600 and 700 are arranged between step 500 and step 800; step 600, the spray rod is in a retracted state, the water outlet sprays hot water to flush the UV lamp assembly; and step 700, the water outlet stops spraying water. The above method can effectively reduce the adhesion of dirt around the spray hole, has good sterilization effect, and guarantees the health of the user.

The present invention proposes a motor vehicle sewage pipe cleaning agent and a preparation method and application thereof, belonging to the technical field of cleaning agents. Silane coupling agent is used to modify silicon dioxide, and then react with epichlorohydrin, and then react with alkyl polyglycoside, and then react with alkyl polyglycoside, and the obtained product is mixed with anionic surfactant, aminosulfonic acid, and citric acid to obtain a motor vehicle sewage pipe cleaning agent. The motor vehicle sewage pipe cleaning agent prepared by the present invention has the characteristics of being degradable, green, environmentally friendly, low in toxicity, and mild, has strong detergency, high descaling rate, synergistic decontamination effect between components, low corrosiveness, and has broad application prospects.

The utility model relates to the field of pipeline decontamination, and provides a pipeline weld joint ultrasonic decontamination device which comprises an ultrasonic generator and a control module. The ultrasonic generator is used for being attached to the position, close to a weld joint, of the periphery of the pipeline. And the control module is in communication connection with the ultrasonic generator. According to the scheme, ultrasonic waves are adopted to decontaminate the pipeline weld joints, the structure is simple, operation is convenient, the modular design enables equipment to operate more conveniently, the device can be suitable for complex working conditions such as pipeline weld joint decontamination at the dense positions of pipelines, ultrasonic decontamination can directly act on the interiors of the pipelines, the pipeline weld joint ultrasonic decontamination efficiency is improved, and the pipeline weld joint decontamination efficiency is improved. And the workload and radiation dose of workers are reduced.

The invention relates to a catalytic ozonation catalyst for treating radioactive waste liquid and a preparation method of the catalytic ozonation catalyst. The preparation method comprises the following steps: preparing porous biochar, and carrying out hydrothermal treatment on the porous biochar and a hydrophilic reagent to prepare a hydrophilic porous biochar substrate; adding a titanium source into a hydrofluoric acid solution with a set concentration, and uniformly stirring to form a titanium-containing stock solution; and adding the hydrophilic porous biological carbon substrate into the titanium-containing stock solution, continuously stirring for a certain time, carrying out a hydrothermal reaction under high-temperature and high-pressure conditions, cleaning the obtained product to be neutral, and drying to obtain the catalytic ozonation catalyst. According to the present invention, the titanium oxide is adopted as the catalytic activity reagent, the hydrophilic porous biological carbon substrate is adopted as the carrier, the in-situ synthesis ozone catalytic oxidation catalyst is performed through the hydrothermal method, and the in-situ synthesis ozone catalytic oxidation catalyst has characteristics of significant synergistic adsorption effect, high ozone loading capacity, concentrated catalytic reduction after adsorption of the organic matter, and significant catalysis efficiency improving.

The application discloses a variable-diameter steel wire rope decontamination device, which comprises a decontaminator and an axial limiter, and the decontaminator comprises a variable-diameter mechanism and a decontamination cutter. The variable-diameter mechanism comprises variable-diameter blocks, a rotating disc, a fixed disc, a positioning shell and rotating blocks. The rotating disc and the fixed disc are uniformly distributed with the variable-diameter blocks in the circumferential direction. The rotating disc is uniformly distributed with first track grooves in the circumferential direction, and the fixed disc is uniformly distributed with second track grooves in the circumferential direction. The upper and lower surfaces of the variable-diameter blocks are respectively slidably installed in the corresponding track grooves of the fixed disc and the rotating disc through bosses. One end of the variable-diameter block is provided with an open groove, and the open groove is provided with a rotating block. One end of the rotating block is provided with a recess, and the decontamination cutter is elastically installed in the recess. The positioning shell is arranged outside the rotating disc and the fixed disc, and the positioning shell is fixedly connected with the fixed disc. The positioning shell and the rotating disc are adjustably connected in the circumferential direction. The application has the advantages of small size, low cost, high decontamination efficiency, adaptability to various diameter series of steel wire ropes, quick installation and replacement and the like.

The invention discloses conducting rod decontamination equipment, and belongs to the technical field of conducting rod decontamination. Conducting rod decontamination equipment comprises a box body and a decontamination cavity formed in the box body, a spray washing assembly is arranged on the box body, a fixing cylinder is arranged in the box body, the conducting rod decontamination equipment further comprises a plurality of sliding rods connected to the fixing cylinder in a sliding mode, and one end of each sliding rod is fixedly connected with a clamping plate corresponding to a conducting rod; according to the conducting rod decontamination equipment, a rotating rod is rotated through a third motor, a shifting plate is driven to rotate and abut against an abutting plate on the inner wall of a mounting cylinder, the abutting plate rotates along with the rotating rod and the shifting plate under supporting of a first torsional spring and a baffle, and then the mounting cylinder, a connecting rod and a driving disc rotate; when the driving disc rotates, the driving rod is driven to slide in the arc-shaped hole through the arc-shaped hole in the surface, so that the driving rod drives the plurality of sliding rods to draw close to the center of the fixed cylinder at the same time, and then the plurality of clamping plates draw close to each other to clamp and fix the conducting rod.