99results about How to "Quick wash" patented technology

The utility model relates to concrete technical field discloses fly ash content concrete's test simulation cabin that can simulate underground environment, including cabin body, the inside bottom wall of cabin body equidistance is opened with a plurality of ponding holes, the outer wall right side of cabin body is fixedly connected with fixed plate, the top wall of fixed plate is fixedly connected with water pump, one end of water pump is communicated in the outer wall right side middle lower portion of cabin body, the other end of water pump is fixedly connected with water pipe, water pipe is communicated in the outer wall right side middle upper portion of cabin body, the inside top wall of cabin body is installed with the shower head equidistance. In the utility model, motor drive connecting shaft rotates, connecting shaft drives gear no.

The application belongs to the field of coating detection, and specifically discloses a detection equipment for coating production, which comprises a sampling mechanism, wherein the sampling mechanism is connected with a base, a stirring tank is installed at the upper end of the base, the stirring tank is communicated with the sampling mechanism, the sampling mechanism comprises a stepping motor, the stepping motor is connected with a glass frame, a spectrometer is installed at one end of the glass frame, the output end of the stepping motor is in transmission connection with a lead screw, the lead screw is in threaded connection with a sliding rod, the sliding rod is in sliding connection with the glass frame at both ends, the sliding rod is connected with three sample cups which are arranged at equal intervals at the top of the sliding rod, and the sliding rod is in contact with a quantitative control mechanism. The stepping motor is used for driving the sliding rod to translate and trigger the quantitative control mechanism, the multi-angle test pieces arranged in an interlaced mode are combined with the spectrometer, the full-process automatic detection from layered sampling, sedimentation observation to coating optical performance analysis is realized, and the problems of sample cross contamination and low detection efficiency in the prior art are solved.

The utility model relates to the technical field for thermal power plant discloses a kind of boiler compressed air silencers, including silencer body, the anti-blocking silencing mechanism includes rotating shaft, the rotating shaft is rotationally connected in the inside of the silencer body outside, the rotating shaft top is fixedly connected with cleaning block, the inside of the silencer body is equipped with cavity, the inside of the cavity is fixedly connected with sound-absorbing block The inside of the silencer body is equipped with multiple silencing holes.The utility model, the gas generated by boiler enters the inside of silencer body by air inlet, and in this process, gas promotes the air-driven fan blade located in the inside of air pipe, then drives rotating shaft by air-driven fan blade, finally drives the scraper and cleaning block fixed in the outside of rotating shaft to rotate, to realize the cleaning of the silencing hole and the through hole in the inside of speed-reducing hopper equipped in the inside of silencer body.

This invention relates to the field of shell-and-tube heat exchangers, specifically a shell-and-tube heat exchanger and temperature control device, including a heat exchange box. A first plate is fixedly installed inside the heat exchange box, and second plates are fixedly installed at both ends of the heat exchange box. Sealing grooves are formed on both sides of the second plates, located on the side of the second plate away from the first plate. Third plates are provided on both sides of the heat exchange box. The core of this invention is a U-shaped heat pipe, which is evacuated and then filled with a special phase-change heat transfer medium for heat pipes, achieving efficient heat transfer through phase-change circulation. The third plate is fixed by the first plate, and a pushing mechanism drives a pressure block to compress the rubber sealing ring of the third plate for sealing. Opening the third plate allows for quick cleaning of the internal U-shaped heat pipe and flow channels, facilitating disassembly of the main body and significantly simplifying subsequent maintenance and reducing maintenance costs.

This utility model provides a pet carrier atomizing device, including a base plate, a box body, and a lid. The box body is located on the base plate, and the lid is located on top of the box body. The lid has a liquid inlet with a sealing plug. A mounting cavity is formed between the base plate and the box body. The box body is a container for holding disinfectant or medicine. A power source and an atomizing element are located within the mounting cavity. A water outlet corresponding to the atomizing element is located at the bottom of the box body, a spray nozzle corresponding to the atomizing element is located on the base plate, and an air inlet corresponding to the spray nozzle is located on the box body. The liquid inside the box body comes into contact with the atomizing element through the water outlet. The power source powers the atomizing element, which atomizes the liquid and allows the atomized gas to enter the box body through the spray nozzle and air inlet. This pet carrier atomizing device uses an atomizing element to atomize liquid, allowing the atomized gas to enter the box body for disinfection or pet care, making it widely applicable.

The invention relates to the technical field of medical instruments, and discloses an arthroscope waste liquid suction device with a rapid self-cleaning function, the arthroscope waste liquid suction device comprises a negative pressure device, the two sides of the negative pressure device are fixedly connected with storage tanks, the tops of the storage tanks are provided with tank covers, and the tank covers are provided with feeding ports; a filtering and separating mechanism is arranged on the outer side of the tank cover and comprises a servo motor fixedly connected to the top end of the tank cover, a filtering rotary drum and a separating rotary drum, the filtering rotary drum and the separating rotary drum are rotationally connected with the tank cover, and a placing hook is fixedly connected to the outer side of the negative pressure device; a smashing and pushing mechanism is arranged on the outer side of the containing hook, a cleaning mechanism is arranged on the outer side of the negative pressure device, and an emptying exhaust valve port is formed in the outer side of the storage tank. By means of the differential double rotating drums and the reciprocating smashing and cleaning mechanism, chipping cutting and smashing, solid-liquid separation and blockage prevention are achieved, and the pipeline can be cleaned in situ to avoid infection.

The utility model discloses a drainage station stone, and belongs to the technical field of urban road construction. The single module comprises a single module body and a filter part, a drainage channel is formed in the single module body, the filter part is provided with a rectangular frame, a filter screen and a rectangular block, the filter screen is installed in the rectangular frame, the rectangular block is installed at the bottom of the rectangular frame, a reserved groove and a limiting groove are formed in the single module body, and the rectangular frame is arranged in the reserved groove in a matched mode. And the rectangular block is matched in the limiting groove. Fallen leaves, silt and other sundries can be effectively intercepted through the detachable filter part and the filter screen, blockage caused by the fact that the sundries enter a drainage channel is avoided, smooth drainage is guaranteed, the filter part is of a top lifting type detachable structure, the filter screen can be rapidly taken out to be cleaned or replaced, maintenance difficulty and time cost are reduced, and daily maintenance work is facilitated.

The utility model discloses a cleaning and drying integrated equipment for processing traditional chinese medicinal material pinellia, belongs to traditional chinese medicinal material processing equipment technical field, and the bottom fixedly connected with the cleaning cylinder and the first synchronous electric hydraulic push rod have in the top, the first synchronous electric hydraulic push rod's number is two, and the top of two first synchronous electric hydraulic push rod all is fixedly connected with the connecting plate, and the opposite surface of two connecting plates all is fixedly connected with the same cover, the top of cover is fixedly connected with the first electric hydraulic push rod, and the bottom of first electric hydraulic push rod is fixedly connected with the lifting shell. Its beneficial effect is, through setting up the first electric hydraulic push rod and motor, through the first electric hydraulic push rod and drive the circular shell to descend, make the circular shell drive the cleaning basket to immerse to the cleaning cylinder bottom, through the motor and drive the rotary plate rotation, make the rotary plate drive the cleaning basket rotation, under the action of the brush plate, it is convenient to the quick cleaning of pinellia.

The utility model provides a novel tungsten filament surface zinc and silicon dioxide particle composite plating device. The novel tungsten filament surface zinc and silicon dioxide particle composite plating device comprises a flushing assembly, a screening assembly and a backflow assembly, the flushing assembly comprises a flushing pool, a water spraying pipe is arranged on the upper portion of the inner side wall of the flushing pool, and a plurality of nozzles are connected to the side wall of the water spraying pipe; the screening assembly comprises a filtering membrane, and the filtering membrane is arranged on the lower side of the interior of the flushing pool; and the backflow assembly is used for extracting and conveying the filtered electroplating liquid. According to the device disclosed by the utility model, the tungsten filament subjected to composite plating is placed in the flushing tank, water flow is sprayed out from the nozzles after passing through the water spraying pipe, the tungsten filament is flushed, electroplating liquid brought out by the tungsten filament is removed, the water flow containing the electroplating liquid falls on the filter membrane, the electroplating liquid is filtered out, and then the electroplating liquid is conveyed back into the electroplating bath by the pump body 1. Therefore, the tungsten filament is quickly cleaned, the carried electroplating liquid flows back to the electroplating bath, and the problem of waste of the electroplating liquid is avoided.

The utility model relates to a bean grinder technical field especially a kind of household bean grinder.Its technical scheme: including base and grinding frame, the base upper end center position rotationally connected with driving shaft, the driving shaft outside is fixed with lug, the base is installed with the driving motor of driving driving shaft rotation, the grinding frame is installed on base upper end by quick assembly and disassembly component, the grinding frame is opened in grinding groove in, the fixed grinding bushing is fixed in grinding groove side wall, the fixed grinding bushing is rotationally connected with conical grinding disc in through connecting shaft, the grinding frame bottom rotationally connected with the connecting sleeve compatible with driving shaft.The utility model sets up the electric drive structure and grinding structure of bean grinder into the combination structure of detachable, when cleaning inside bean grinder, grinding frame can be easily taken off from base and cleaned, not only can carry out internal water fast cleaning, but also avoid the internal water of electric structure.

The utility model relates to the technical field of metal water jet cutters, and discloses a water jet cutter assembly which comprises a water jet cutter body and a liquid storage pipe which are connected with each other, and a plurality of water jet cutter jet orifices are formed in the water jet cutter body. The filtering device is connected with the liquid storage pipe, and the filtering device is located between the water inlet of the liquid storage pipe and the water jet scalpel body on the flowing path of the liquid. The filtering device is installed on a key circulation path between the water inlet of the liquid storage pipe and the water jet cutter body, liquid is intercepted in the last link before entering the water jet cutter body, the passing probability of residual particles is remarkably reduced, and the residual particles are prevented from entering the water jet cutter jet orifice; and the whole system shutdown time caused by impurity accumulation can be shortened, and the production efficiency is improved.

This utility model discloses a filtration device for lubricating oil recycling and processing, relating to the field of lubricating oil filtration technology. The reciprocating stirring mechanism includes two support rods fixedly connected to the top of the processing tank and a motor fixedly connected to the inner wall of the fixed frame. A fixing strip is fixedly connected to the top of each of the two support rods, and a spiral sleeve is fixedly connected between the two fixing strips. A rotating arm is fixedly connected to the surface of the motor output shaft, and a connecting arm is rotatably connected to the rotating arm. A connecting block is rotatably connected to the connecting arm, and a spiral rod is rotatably connected to the bottom of the connecting block. By setting up a reciprocating stirring mechanism, this application can rotate and stir while simultaneously moving up and down, continuously changing the stirring position. This complex motion path can effectively mix the lubricating oil and additives, ensuring thorough mixing and improving reaction efficiency.

This utility model discloses a tee with a filtering function that is easy to connect, relating to the field of tee technology. The utility model includes a main pipe, to which a branch pipe is connected and communicates. The inner wall of one end of the main pipe and the inner walls of both ends of the branch pipe are provided with placement grooves. A filter plate and a positioning component that cooperates with the filter plate are placed inside the placement grooves. The positioning component includes an annular plate threaded into the placement groove, and the inner wall of the annular plate has multiple grooves. The filter plate of this utility model is positioned by a guide rod and locked by the thread of the annular plate, allowing for quick disassembly, cleaning, or replacement without tools, reducing the cumbersome maintenance of the filter device. The first and second sealing gaskets in the placement groove cooperate with the annular plate to prevent leakage at the edge of the filter plate. The sealing rings and sealing caps at the ends of the main pipe and branch pipe combine to achieve airtightness at the pipe connection, reducing fluid leakage or foreign object intrusion.

The utility model relates to an automatic cleaning device for a medical waste transfer barrel, which comprises a cleaning mechanism and a transmission mechanism, the cleaning mechanism is arranged above the transmission mechanism, the transmission mechanism transports the medical waste transfer barrel, and the cleaning mechanism drives to clean the inner side and the outer side of the medical waste transfer barrel; the cleaning mechanism comprises a cleaning moving assembly and a cleaning assembly, and the cleaning moving assembly drives the cleaning assembly to move in the moving direction of the conveying mechanism. According to the automatic cleaning device for the medical waste turnover barrel, the cleaning mechanism drives to clean the inner side and the outer side of the medical waste turnover barrel, and therefore the medical waste turnover barrel can be automatically and rapidly cleaned.

The utility model relates to the technical field of tooth cleaning, in particular to a temperature-adjustable tooth cleaning device. The utility model provides the tooth cleaning device capable of adjusting the temperature, which can be used for quickly switching the water injection nozzles, is convenient for quickly cleaning the tooth cleaning spray head, effectively prevents cross infection and improves the operation efficiency. A temperature-adjustable tooth cleaning device comprises a shell, a controller, a grab handle and the like, the controller is connected to the left upper portion of the shell, and the grab handle is placed on the left front portion of the shell. The rotary base is rotated to drive the rotary connector to rotate, and the baffle is pushed to move outwards through extrusion of water, so that the baffle does not make contact with the tooth washing spray head any more, water is sprayed out of the cleaning head to the surface of the tooth washing spray head, water spraying openings can be rapidly switched, and the tooth washing spray head can be rapidly cleaned conveniently; cross infection is effectively prevented, and the operation efficiency is improved.

The utility model is suitable for the technical field of cattle breeding, and provides a mating and delivery integrated environment-friendly breeding cowshed which comprises a cowshed body fixedly provided with a fence. The supporting columns are fixedly mounted in the cowshed body; the movable plate is fixedly arranged on the supporting column and is arranged in the fence; the water storage tank is fixedly mounted outside the cowshed body; the connecting pipe is fixedly mounted at the bottom of the water storage tank; the three-way pipe is fixedly mounted on the connecting pipe; the liquid discharging pipe is fixedly installed on the three-way pipe and extends into the cowshed body, and the other end of the liquid discharging pipe is arranged between the movable plate and the ground; and the valve is fixedly mounted on the liquid discharge pipe. The hybridization and delivery integrated environment-friendly breeding cowshed is convenient to clean, the cowshed can be kept clean and tidy, and bacterium breeding is prevented.

The utility model relates to the technical field of mobile toilets, in particular to a mobile toilet hand washing water recycling device which comprises a machine body, the inner wall of the machine body is fixedly connected with a hand washing sink, the bottom end of the hand washing sink is provided with a filter pipe, the bottom end of the filter pipe is connected with a pipeline, and the inner wall of the filter pipe is fixedly connected with a metal filter screen. The inner wall of the filter pipe is fixedly provided with an activated carbon filter layer, the top end of the machine body is fixedly connected with a water collecting tank, the inner wall of the water collecting tank is fixedly connected with a filter plate, and after a user washes hands in the hand washing sink, water directly flows into the filter pipe and is subjected to dual purification of the metal filter screen and the activated carbon filter layer to remove impurities, peculiar smells and organic matters; purified water is conveyed to the flushing tank through a pipeline for flushing a toilet, recycling of hand washing water is achieved, waste caused by direct discharge is avoided, the water collecting tank is arranged at the top end of the device for collecting rainwater, the filter plate is arranged on the inner wall of the water collecting tank, and the filtered rainwater is conveyed to the flushing tank through the water inlet pipe to serve as supplement of a toilet flushing water source.

The utility model provides a kind of viscosity measuring device of integrated PH meter, it is related to detection technical field, including rack and the measuring mechanism of slidingly being arranged on rack, measuring mechanism includes: connecting frame, with rack sliding connection;Fixed part, fixedly installed in the connecting frame bottom, and fixed part bottom is equipped with electric connector;Detection component, including barrel rotor and PH meter, barrel rotor is sleeved in fixed part outside, PH meter is arranged in barrel rotor inside, its detection end is stretched from the barrel rotor bottom, and its top electrode is electrically connected with electric connector;Rotary drive mechanism, for driving barrel rotor relative to fixed part rotation;Torque detection unit, for detecting the rotation resistance of barrel rotor.The viscosity measuring device makes viscosity measurement and pH measurement can be completed in same sample once, avoids the cumbersome operation of needing to use viscosimeter and pH meter respectively in traditional method twice measurement, simplifies detection procedure, improves detection efficiency.

The invention relates to a cleaning agent for a two-piece aluminum pot and also relates to a diluted solution of the cleaning agent. The invention further relates to a cleaning method for cleaning the two-piece type aluminum tank by using the cleaning agent or the diluted solution.

The utility model provides a liquid constant-pressure dynamic chromatographic column, which relates to the field of chromatographic columns, and comprises a rack, and a liftable telescopic frame and a chromatographic column which are arranged on the rack, the telescopic frame comprises hydraulic oil cylinders arranged on the two sides of the machine frame, vertical rods arranged at the output ends of the hydraulic oil cylinders, a transverse rod arranged on the tops of the vertical rods and cover dismounting screws arranged on the transverse rod. According to the utility model, the hydraulic oil cylinder is used for lifting the column head piston, so that the requirement on the installation height of equipment is effectively reduced, the maintenance of the equipment is also facilitated, and the hydraulic oil cylinder lifts the column head piston in a filling column bed replacement process or a daily maintenance process; due to the fact that the self weight of the column head piston is small and the sliding resistance of the column head piston in the column casing is small under non-high pressure, the two hydraulic oil cylinders are arranged and symmetrically distributed on the two sides of the machine frame, the two hydraulic oil cylinders are synchronously controlled, it is guaranteed that the column head piston ascends and descends easily and stably in the column casing, and the situation that the column head piston is stuck in the column casing is avoided.

The utility model provides a 1, 4-dihydroxy anthraquinone washing and drying device which comprises a supporting plate, and an open type drying machine is installed on the supporting plate. According to the 1, 4-dihydroxy anthraquinone washing and drying device, 1, 4-dihydroxy anthraquinone is filtered and collected in a collecting frame through a filter screen, waste water flows into a purifying pond, a first servo motor is controlled to rotate anticlockwise, then the collecting frame is driven to turn over, the collecting frame is inversely buckled above an open type drying machine, and the 1, 4-dihydroxy anthraquinone collected in the collecting frame is recycled. 1, 4-dihydroxy anthraquinone falls into the open type dryer, then the open type dryer is started, the 1, 4-dihydroxy anthraquinone can be rapidly dried, the 1, 4-dihydroxy anthraquinone adhered to the collecting frame and the filter screen is dried, then the vibration motor is started to vibrate the adhered 1, 4-dihydroxy anthraquinone into the open type dryer, and then the dried 1, 4-dihydroxy anthraquinone is collected. The utility model discloses 2, 4-dihydroxy anthraquinone.

The utility model relates to the technical field of medical care facilities, in particular to a device for improving sample needle cleaning efficiency, which comprises a mounting plate, the bottom of the mounting plate is provided with two bottom plates, and the two bottom plates are arranged up and down; the two bottom plates and the mounting plate are combined together to form an inverted U shape with a leftward opening when viewed from the side surface; a sliding groove is formed in the front side of the mounting plate, and a lifting mechanism is arranged in the sliding groove; a first supporting plate is installed on the upper side of the lower side bottom plate. A cleaning tank is installed on the upper side of the first supporting plate. A cleaning mechanism is mounted on the upper side bottom plate; according to the utility model, the cleaning process is optimized through the four needles, one needle A is adopted for working, three needles BCD are adopted for cleaning, the cleaning time of each needle is prolonged by utilizing the structure of the element, and cross infection is avoided; and an intelligent control system is additionally arranged, so that the sample needle is quickly and thoroughly cleaned, and meanwhile, the consumption of water resources and consumables is reduced.

The utility model relates to the field of reverse osmosis water treatment equipment, and discloses anti-scale reverse osmosis water treatment equipment which comprises a base and a support, the support is fixedly connected to the top end of the base, a raw water tank is arranged on the left side of the support, a water storage tank is arranged on the right side of the support, and a multi-stage reverse osmosis filter assembly is arranged between the raw water tank and the water storage tank. The multi-stage reverse osmosis filtering assembly comprises a first osmosis membrane tank, a second osmosis membrane tank, a third osmosis membrane tank and a fourth osmosis membrane tank. According to the anti-scaling reverse osmosis water treatment equipment, the water outlet is formed, a descaling opening is independently designed, a special connecting pipe is additionally arranged to discharge waste into a waste water tank, after the equipment stops running, waste water can be rapidly discharged, and the scaling risk on the surface of a reverse osmosis membrane and in a pipeline is reduced; pressure can be independently adjusted among different filtering levels, water flow is prevented from being retained in the multi-level filtering process, and the problems of scale deposition and wastewater retention are solved.

This utility model relates to the technical field of konjac processing equipment, and specifically discloses an alkaline water circulation device for processing konjac gel products. It includes a tank, with a circulating alkaline water tank and a new alkaline water tank located above the tank, and a circulation pipe connecting the tank and the circulating alkaline water tank. Inside the tank, from top to bottom, are arranged a mesh plate, a conveyor belt, a rotating belt, an output belt, and a filter screen. A pH meter is installed inside the circulating alkaline water tank. This utility model establishes a circulation pipe and installs a pH meter inside the circulating alkaline water tank. The circulating alkaline water tank is also connected to the new alkaline water tank, maintaining a suitable pH value for the alkaline water in the circulating alkaline water tank, ensuring full utilization of the alkaline water, and saving energy. This utility model incorporates a rotating belt, changing the entire curing process to an up-and-down curing method, fully utilizing the cavity 11, and reducing space occupation. This utility model also improves production efficiency and makes cleaning the filter screen convenient and quick.

The utility model belongs to the technical field of aluminum flat tube production, and particularly relates to an aluminum flat tube production cleaning device which comprises a cleaning box. A water storage tank is mounted at the end part of the cleaning tank; the middle part of the water storage tank is fixedly connected with a discharge pipe; the middle of the discharge pipe penetrates through the side wall of the cleaning box; the end part of the discharge pipe is fixedly connected with two water outlet pipes; the two water outlet pipes are arranged on the inner side wall of the cleaning box; the two water outlet pipes are oppositely arranged; a plurality of nozzles are fixedly connected to the middle of the water outlet pipe; the multiple nozzles are distributed at equal intervals; two drivers are mounted at the end part of the cleaning box; the two drivers are mounted at one end far away from the water storage tank; the output end of the driver penetrates through the middle of the cleaning box. By means of the structure, the bristles stably move in the aluminum flat pipe washing process, washing water completely covers the surfaces of the aluminum flat pipes, dirt and impurities remaining on the surfaces of the aluminum flat pipes are effectively removed, and the cleaning effect of the multiple aluminum flat pipes is kept consistent.

The utility model discloses pickled vegetable cleaning and draining integrated machine relates to pickled vegetable processing device technical field, the utility model discloses a sliding plate still includes: the cleaning part is arranged at the top of sliding plate, the configuration part is arranged at the back of sliding plate, the cleaning part includes cleaning assembly, and the cleaning assembly is installed at the top of sliding plate, the turnover subassembly is installed on the cleaning assembly, the cleaning assembly includes the support frame no.

The utility model relates to a laparoscope puncture sheath tube rapid cleaning device, its characterized in that: cleaning assembly, cleaning rod and motor, cleaning rod adopts telescopic structure, the diameter of cleaning rod is less than the diameter of puncture sheath tube, and cleaning rod is connected with the output shaft of motor through quick -witted joint, and cleaning rod is connected with quick -witted joint through fixing piece, and cleaning assembly sets up at the top of cleaning rod, and cleaning assembly is completely inserted into puncture sheath tube deep place through cleaning rod, and the inner wall of puncture sheath tube is washed fast by the rotation of cleaning rod driven by motor to the cleaning assembly, and manual wiping is not needed, and the cleaning efficiency of puncture sheath tube is effectively improved, and cleaning rod adopts telescopic structure, and the length of cleaning rod can be adjusted, and the depth of cleaning assembly inserted into puncture sheath tube is made, and it is favorable to the complete cleaning of puncture sheath tube.

This utility model relates to a heat exchanger, specifically, to an easy-to-clean, anti-clogging marine heat exchanger. It includes a heat exchanger housing, with two inlet pipes fixedly installed on the outer wall of the housing. A filter assembly is located at the other end of each inlet pipe. The filter assembly includes a housing, with a drain pipe fixedly installed on one side of the housing. The other end of the drain pipe is fixedly connected to the inlet pipes via a flange. A stopcock is threaded to the bottom of the housing. With this utility model, the operator can quickly unlock and open the cover by holding and rotating the wing nut with one hand. The return spring then automatically rebounds, pushing the top block upwards to lift the filter basket, breaking the static friction between the retaining ring and the positioning ring. This causes the filter basket to rise and disengage from its original clamping position, allowing personnel to easily remove it for washing and maintenance via the handle. This enables rapid disassembly and cleaning of the filter basket, improving maintenance efficiency and ensuring the long-term anti-clogging performance of the heat exchanger.

The utility model relates to the technical field of medical equipment, in particular to a protective sleeve for the tip of an endoscope. Comprising a protective sleeve body, the body is integrally formed by a first sleeve and a second sleeve, an abutting circular truncated cone is arranged in the first sleeve and used for abutting against a hard portion of the tip of an endoscope, and open grooves are formed in the two sides of the end and used for discharging residual water. A fixing part is arranged at one end of the second sleeve and comprises an endoscope insertion opening and a tightening assembly, the insertion opening is made of silica gel, has elasticity and can be matched with endoscope tip parts with different diameters, the tightening assembly comprises a fixing connector, a tightening belt and an upper cover, the tightening belt is guided through an I-shaped through hole, and the upper cover is hinged to the fixing connector and connected with the fixing connector through a buckle. The protective sleeve can prevent the endoscope from being damaged in the transportation and storage process, is easy to clean and disinfect, has no disinfection dead angle, allows residual water in the endoscope to be smoothly discharged through the open groove, avoids corrosion or bacterium breeding caused by water retention, and saves maintenance cost.