100results about How to "Avoid corrosion damage" patented technology

A telegraph pole single-porcelain-bottle rain-snow-prevention bird-trouble-prevention insulating sheath capable of being installed in an electrified mode comprises a porcelain bottle sleeve and wire sleeves, the two opposite sides of the porcelain bottle sleeve used for wrapping the top of a porcelain bottle are respectively connected with one wire sleeve used for wrapping a wire, and the lower end of the porcelain bottle sleeve is provided with an opening corresponding to the upper portion of the porcelain bottle. A slot communicated with the opening in the lower end of the porcelain insulator sleeve is formed in the lower edge of the wire sleeve, butt joint edges extending downwards are connected to the two edges of the slot respectively, a mounting plate is arranged on the porcelain insulator sleeve, and a mounting hole is formed in the mounting plate; the cross sections of the butt-joint edges on the two sides are in a splayed shape, and the minimum distance between the butt-joint edges on the two sides is matched with the diameter of an electric wire. The invention has the advantages that under the condition of uninterruptible power supply, the mounting rod is used for supporting the mounting plate, and the whole sheath is mounted on the top end of the porcelain bottle and the electric wire downwards from the upper part of the porcelain bottle and the adjacent electric wire, so that the application is convenient, rain, snow and bird damage are effectively isolated, the binding wire and the electric wire are prevented from being corroded and damaged, and the safe operation of an electric power circuit is ensured.

The invention discloses a treatment process for removing impurities in neodymium-iron-boron oil sludge. The treatment process comprises the following steps: step 1, sieving the neodymium-iron-boron oil sludge, washing the neodymium-iron-boron oil sludge in an organic mixed solution, and removing liquid; 2, washing in a weakly acidic mixed aqueous solution, and removing liquid; 3, washing in an alkaline mixed aqueous solution, and removing liquid; 4, washing in water, and removing liquid; and 5, washing in an organic solvent, removing liquid, and drying to obtain purified neodymium iron boron oil sludge powder. According to the treatment process, the neodymium-iron-boron oil sludge is sequentially cleaned through the organic mixed solution, the weakly acidic mixed aqueous solution, the alkaline mixed aqueous solution, the water and the organic solvent, impurity elements such as Si, Mn and Ca and impurity particles in the neodymium-iron-boron oil sludge can be effectively removed, and the treatment process is suitable for the technical field of preparation of regenerated neodymium-iron-boron magnetic powder.

The utility model provides a roof anti-leakage structure, which relates to the technical field of building roofs and comprises a storage box, the storage box is provided with at least one opening, guide rails extending downwards in an inclined manner are fixedly mounted at two ends of the opening, connecting shafts are movably mounted in the guide rails, and arc-shaped wind shields which deform elastically are arranged on the outer walls of the connecting shafts; one end of the waterproof cloth is fixedly connected with the connecting shaft, the other end of the waterproof cloth is connected with the rotating shaft in the storage box, the waterproof cloth is arranged in a double-layer mode, and an elastic opening long strip is sewn on the cloth cover, close to the rotating shaft, of the lower-layer waterproof cloth; the elastic opening long strip corresponds to an air blowing opening of an air blowing device which is located at the bottom of the storage box and aligned to the ridge, the air blowing device blows air into a triangular area defined by the elastic opening long strip, the rainproof cloth and the roof at the same time, and the area of the air inlet is larger than that of the air outlet. Therefore, the problem that when rainwater is heavy, the rainproof cloth sinks downwards, water is accumulated, and drainage is not facilitated is solved.

The invention discloses a vacuum pump combination device for waste lubricating oil regeneration, and relates to the technical field of waste lubricating oil regeneration, the vacuum pump combination device comprises a bottom frame, a vacuum pump is fixedly mounted on the right side of the top surface of the bottom frame, two arc frames are fixed on the top surface of the bottom frame, and a tank body is fixedly mounted on the top surfaces of the two arc frames; a round cover is fixedly installed on the left side of the tank body, an adsorption assembly is arranged on the left side of the inner wall of the tank body and comprises a round rod, the round rod is rotatably installed on the left side of the inner wall of the tank body, the left end of the round rod penetrates through and is rotatably installed in the middle of the right side of the round cover, and a driving module is fixed to the left side of the round cover. According to the waste lubricating oil cleaning device, metal particles in waste lubricating oil are adsorbed through the concave magnetic plate, and therefore the problem that an impeller of a vacuum suction pump is prone to damage due to the fact that the impeller of the vacuum suction pump is abraded by the metal particles in the waste lubricating oil is solved.

The utility model discloses gantry type clothing printing pretreatment liquid spraying equipment which comprises a box body, a bedplate tray capable of moving back and forth is arranged in the box body, and a bedplate is further arranged at the top of the bedplate tray, and is characterized in that splash-proof plates are arranged on the two sides of the top of the box body, a gantry type frame is arranged at the top of the box body, and the bedplate is arranged on the bedplate tray. A sprayer is arranged on the gantry type frame, a driving device for driving the platen tray to move back and forth is arranged in the box body, and at the moment, the side plate can move towards the proximity switch on the front side after approaching the proximity switch on the rear side, and stops moving after approaching the proximity switch on the front side. At the moment, the clothes on the table plate are sprayed with the treating fluid back and forth, and then the worker takes down the clothes sprayed with the treating fluid and steps on the pedal switch again, so that the treating fluid spraying work of the next clothes can be carried out.

The invention relates to the technical field of coal mine underground smoke detection, in particular to a composite mining smoke sensor and a detection method thereof. A composite mine smoke sensor comprises a mounting frame, a shell, a protective net, a circuit board and an optical labyrinth piece, the mounting frame is a hollow piece with two open ends, one end of the shell is open and sleeved on the periphery of the lower portion of the mounting frame, the optical labyrinth piece is arranged on the inner bottom face of the shell, and T-shaped smoke inlet grids are evenly distributed on the edge of the optical labyrinth piece. The top of the optical labyrinth piece is connected with a circuit board located in the installation frame, an optical smoke sensor and a gas-sensitive sensor are installed on the circuit board, and a protective net is arranged between the optical labyrinth piece and the shell. The optical smoke sensor and the gas-sensitive sensor are combined for smoke detection, the optical smoke sensor identifies smoke by distinguishing particle sizes of particulate matters by using an optical dual-wavelength detection technology, and the gas-sensitive sensor detects the content of some gases generated along with the smoke, so that the situation of false alarm of a single sensor can be avoided.

The invention relates to the technical field of prefabricated structural parts, and particularly discloses a prefabricated butt joint steel structure which comprises a wall body, corner fixing frames are arranged at the corners of the wall body, cement board bodies are arranged on the two sides of the wall body, fixing devices are arranged at the two ends of each cement board body, clamping grooves are vertically formed in the corner fixing frames, and the fixing devices are arranged in the clamping grooves. Connecting grooves are formed in the front side and the rear side of the inner surface of the clamping groove, and the two ends of the cement board body are inserted into the clamping grooves in the corner fixing frames through fixers to be connected and fixed. The fixator comprises a built-in groove, a clamping block, an extrusion block, a connecting piece, a rotating shaft, a connecting strip, a first movable groove, a second movable groove, a butt joint groove, a bumper and a buffer assembly. The structure can prevent a large amount of rainwater from being injected, reduces corrosion damage caused by residual rainwater in the fixer, protects the cutting end of the cement board main body, prevents water from entering the cement board main body to corrode and damage the cement board main body, and prolongs the service life of the device structure.

The utility model discloses a communication equipment installation base which comprises a horizontally-arranged lower supporting plate, an upper supporting plate corresponding to the lower supporting plate is arranged above the lower supporting plate, a communication equipment body is installed above the upper supporting plate, and two installation plates are fixedly installed on the left side and the right side of the upper surface of the upper supporting plate through bolts. The installation plate and the communication equipment body are fixedly installed through bolts, four air pressure damping rods are fixedly installed between the upper supporting plate and the lower supporting plate, a heat dissipation mechanism is arranged between the upper supporting plate and the lower supporting plate, and flowing of surrounding air is accelerated through the heat dissipation mechanism. According to the communication equipment mounting base, the novel structural design is adopted, the rainproof mechanism is mounted above the upper supporting plate, and a rainproof cover in the rainproof mechanism moves forwards to the position above the communication equipment main body in rainy days, so that the communication equipment main body is shielded, and corrosion damage caused by direct contact of rainwater is avoided.

The utility model discloses a quick charging base with multiple charging positions, and relates to the technical field of charging bases, the quick charging base comprises a charging base body and a battery panel, the front side of the bottom of the charging base body is provided with a connector lug, and the top of the charging base body is respectively provided with a charging groove I and a charging groove II; according to the utility model, four charging limiting plates are fixedly connected to the inner sides of the charging groove I and the charging groove II at the bottom of the charging base body, so that battery panels on the inner sides of the charging groove I and the charging groove II can be limited, and the battery panels can be more accurately inserted into the charging insertion rods; a dustproof piece is installed on the side face of a connector lug at the bottom of the charging base body, a dustproof plate in the dustproof piece is fixedly connected with the bottom of the charging base body through a connecting belt, the dustproof plate is clamped to the connector lug through a plug barrel, and a sponge layer on the inner side of the plug barrel can remove dust on the connector lug; corrosion damage caused by accumulation on the inner side of the connector lug is avoided.

The invention aims to provide a methanol / diesel oil dual-fuel single needle valve injector, and belongs to the field of engines. A methanol hydraulic on-off control assembly is installed in the methanol connector body and the on-off valve body, a diesel hydraulic on-off control assembly is installed in the diesel connector body and the ejector intermediate body, a methanol-diesel common nozzle assembly is installed in the nozzle body, a methanol pipeline connector is installed on the side of the methanol connector body, and a methanol pipeline is arranged in the methanol pipeline connector. A diesel pipeline connector is installed on the side of the diesel connector body, a diesel pipeline is arranged in the diesel pipeline connector, and a high-pressure methanol path and a high-pressure diesel path are arranged in the diesel connector body. The two fuel injection modes are controlled through the same needle valve, fuel is injected through the same injection hole, and an inner and outer needle valve nested structure which is high in machining difficulty and poor in reliability is avoided. In addition, in the methanol and diesel oil injection mode, diesel oil is introduced into a pressure chamber of the injector, and corrosion damage to a precise throttling hole in the injector caused by methanol fuel is avoided.

The utility model provides a gas recovery well mouth defrosting device, which belongs to the technical field of energy exploitation, and comprises a well mouth seat, an electric heating tube is embedded in the outer wall of the well mouth seat, the well mouth seat is heated through the electric heating tube, so that the installed well mouth is heated, the inner wall of the well mouth seat is provided with a drainage assembly used for guiding condensate water, and the drainage assembly is provided with a water inlet and a water outlet. The drainage hole corresponds to the water flow tail end of the drainage assembly, condensate water is drained to the outside through the drainage hole, the condensate water is prevented from corroding and damaging the surface of the gas production pipeline, and therefore the gas production pipeline is protected, and frost is formed on the inner wall of the wellhead seat when the gas production wellhead absorbs heat due to pressure reduction, so that the gas production pipeline is protected. The wellhead seat is heated through the electric heating pipe, so that the formed frost is treated, the frost forms condensed water, then the condensed water is discharged to the outside, and the influence of the frost formed at the wellhead on the gas production process is avoided.

The utility model discloses an anti-static electronic adhesive tape which comprises an electronic adhesive tape body, the electronic adhesive tape body is composed of an isolating membrane, an anti-corrosion layer, an anti-static layer and a bottom end adhesion layer structure, and an adhesive tape paper tube is fixedly connected to the interior of the electronic adhesive tape body; a limiting fixing column is fixedly connected to the upper end of the fixing base, an adhesive tape paper tube is arranged at the upper end of the limiting fixing column, and the limiting fixing column is of a conductive plastic structure. By arranging the anti-corrosion layer containing the polyurethane material structure, the electronic adhesive tape is prevented from being corroded and damaged by the external environment, and the service life of the polyurethane material is prolonged. By arranging the fixing base and the limiting fixing column containing the conductive plastic material, an adhesive tape paper tube is stored and protected, and the situation that static electricity is generated during storage and stacking, and the anti-static capacity of the electronic adhesive tape is affected is prevented.

The utility model provides a water tank connecting structure and rowing machine, including the upper lid body and lower lid body of split, the circumference lateral wall surface of lower lid body around its upside opening is equipped with a plurality of clamping portions, the downside opening of upper lid body is provided with a circle and the clamping groove of lower lid body upside opening inlay, the inner side wall of clamping groove is equipped with a plurality of and the clamping hole of buckling cooperation one -to -one opposite with clamping portion, still including a sealing washer, the positioning groove of distributing around its circumference side is equipped with one side of sealing washer, the positioning protrusion of inlaying is provided with on the upside of lower lid body, positioning protrusion and the positioning groove of sealing washer inlay and integrally inlay in the inner bottom portion of clamping groove to form the seal, the utility model can realize upper lid body and lower lid body between more convenient, fast connection, significantly reduce the labor cost and time cost, keep upper lid body and lower lid body between good sealing performance simultaneously, can effectively prevent the water tank seepage problem, avoid the corrosion damage of seepage to rowing machine other parts, greatly prolong the overall service life of equipment.

The utility model discloses a kind of air energy water heaters with condensate water recovery device, it is related to air energy water heater technical field.The utility model includes collection mechanism, the collection mechanism includes collection mechanism including air energy water heater, the left side of the air energy water heater is provided with fixed plate, the left side top of the fixed plate is equipped with upper hopper, the lower portion of the upper hopper is equipped with lower hopper.The utility model is by being arranged collection mechanism, specifically is clockwise rotating knob, makes screw rod drive trapezoidal boss to move downwards, makes triangular block along trapezoidal boss bevel slide, and by two triangular blocks drive clamp block mutually close, finally two clamp block and boss are inserted together, so it can be controlled to the installation and disassembly of lower hopper by the rotating direction of hole knob, it is convenient to regularly clean container inside container and timely remove scale, prevent scale deposition and cause container corrosion damage, guarantee the service life of container.

The invention relates to the technical field of aging tests, and discloses a test device and method for accelerating material aging through multi-environmental factor coupling, and the test device for accelerating material aging through multi-environmental factor coupling comprises a test box body which is used for providing an aging degree test environment; the illumination system is mounted in the test box body and is used for providing irradiation for the test box body; the salt mist system is connected to one side of the test box body through a pipeline and is used for spraying salt mist into the test box body; and the gas mixing system is connected to one side of the test box body through a pipeline and is used for guiding various gases into the test box body. By adopting the multi-factor coupling material aging system, the combined action of multiple factors in a service environment is simulated, the process of a multi-factor coupling aging test is accelerated, the test steps are simplified, the test period is greatly shortened, the manual labor is reduced, and the system closely combines a salt fog factor with other environmental factors.

The invention discloses a heat recovery heat exchanger with a heat preservation function for smoked ducks, which comprises a tank body, two partition plates and a plurality of bent pipes, a flow guide cover is fixedly mounted on the left side of the tank body, a heat outlet is formed in the middle of the left side of the flow guide cover, and the two partition plates are fixed on the inner wall of the tank body; the two ends of the bent pipes penetrate through and are fixed to the ends, close to each other, of the two partition plates respectively, the gas guide assembly is arranged on the top face of the tank body, the round cover is fixedly installed on the right side of the tank body, the barrel shell penetrates through and is fixed to the middle of the right side of the round cover, and the motor is fixedly installed on the inner wall of the barrel shell. According to the device, grease in high-temperature flue gas is adsorbed in a large area through the activated carbon blocks, and therefore the situation that the grease in the high-temperature flue gas is accumulated in the bent pipe in a large area, and consequently the heat conduction effect of the bent pipe is poor is avoided.

This utility model relates to the field of sulfur incinerators, specifically to an in-furnace protection device for combustion-supporting gas in a sulfur dioxide incinerator. The utility model comprises a sulfur incinerator body, a fixed pipe, a jacketed sleeve, a cooling sleeve, a gas transmission pipe, and a coolant pipe. A circulation pump is connected to the external coolant pipe, and a storage tank is connected to the bottom of the circulation pump. A heat dissipation mechanism is installed on one side of the top of the storage tank. The coolant pipe, circulation pump, storage tank, and heat dissipation mechanism together constitute a cooling mechanism for the gas transmission pipe. During sulfur incinerator operation, combustion-supporting gas is transported to the inside of the sulfur incinerator body through the gas transmission pipe. The circulation pump pumps the coolant from the storage tank into the coolant pipe, causing the coolant to circulate within the pipe. The coolant absorbs heat and cools the gas transmission pipe, keeping it at a lower temperature during sulfur incinerator operation and preventing corrosion damage to the gas transmission pipe extending into the incinerator due to high temperatures.

The invention discloses purification equipment for sulfur black production and processing waste gas treatment, relates to the technical field of waste gas purification, and aims to solve the problems that when waste gas is guided into an alkaline solution through a pipeline for reaction, due to the fact that a gap for independently guiding out the waste gas is closed, the alkaline solution permeates through the gap position, and the waste gas is discharged out independently. A disc of a shaft disc is matched with a sliding column, in the process that internal air pressure is increased, the shaft disc moves upwards to open a gap between the disc and a conical face of the top of the inner wall of a connecting pipe, meanwhile, under driving of the shaft disc, the sliding column opens a gap between the sliding column and a slope ring, and waste gas firstly passes through the gap of the disc; waste gas is discharged through the two gaps, meanwhile, gas still exists between the two gaps after sealing, air pressure exists in the space, and the alkaline solution is prevented from permeating from the gaps to cause corrosion damage during sealing.

The utility model relates to a precise adjusting mechanism for the flow of a die head of a coating machine. The precise adjusting mechanism for the flow of the die head of the coating machine comprises a coarse adjusting mechanism, a fine adjusting mechanism and a flow limiting block which are sequentially arranged from top to bottom, the flow limiting block is mounted above the die head coating slit; an adjusting rod is arranged in the middle of the top surface of the flow limiting block; a fine adjusting mechanism is connected above the adjusting rod, and a coarse adjusting mechanism is connected above the fine adjusting mechanism. According to the utility model, coarse adjustment and fine adjustment are combined, so that the flow adjustment precision and efficiency are improved, the coating uniformity is improved, and the coating quality is stable.

This invention discloses a five-layer electrodeposited high-sealing corrugated pipe based on ultrasound assistance and its preparation method, belonging to the technical field of metal corrugated pipe manufacturing. It aims to solve the problem that in multi-layer electrodeposited corrugated pipes, it is difficult to effectively coordinate current density, surface quality, and interfacial bonding strength, leading to insufficient densification of the deposited layer, unstable interlayer bonding, poor wall thickness uniformity, and failure to meet airtightness standards, ultimately resulting in poor overall performance stability. This invention includes a five-layer composite structure in which the pipe wall is composed of alternating nickel-cobalt alloy and copper layers. Each layer of the five-layer composite structure undergoes ultrasonic vibration treatment during deposition. The corrugated pipe prepared by this invention has a uniform and dense deposited layer with good interlayer bonding. The five-layer alternating deposition layer composite structure not only achieves uniform stress transmission and dispersion, effectively delaying crack propagation and interfacial penetration, but also improves the uniformity of wall thickness distribution, enabling the corrugated pipe to exhibit higher structural stability and long-term reliability in a sealed environment.

The utility model discloses a graphene oxide cake material crushing device, and relates to the technical field of graphene oxide processing, the graphene oxide cake material comprises a feed hopper used for crushing the graphene oxide cake material, the feed hopper is provided with two supporting wallboards which are symmetrically arranged, and the longitudinal section of each supporting wallboard is in an L shape; the two ends of the two supporting wallboards are each fixedly provided with an end plate. The number of the material crushing rollers used for crushing the graphene oxide cakes is two, and each material crushing roller is provided with a driving shaft rod and a crushing blade; a plurality of crushing blades are arranged, the plurality of crushing blades are uniformly arranged in an array along the axis direction of the driving shaft rod, and the two groups of mutually engaged crushing blades can quickly roll a large cake material into the blade group, so that the speed of the graphene oxide cake material crushing device is increased; according to the utility model, after graphene oxide cakes are shredded into blocks, dispersion treatment or drying treatment is carried out, and the dispersion time or the drying time is obviously shortened.

The invention discloses an intelligent mechanical arm assembly for cooking, and relates to the field of mechanical arms, according to the intelligent mechanical arm assembly for cooking, through rotating connection between a rotating plate and a connecting groove and matching with the characteristic of an elastic material of an arc-shaped plate, when a spatula is driven to stir and fry in a frying pan, the contact pressure between the spatula and the frying pan is greatly reduced in the frying process, and the cooking efficiency is greatly improved. And the pressure is transmitted to the rotating plate, so that the rotating plate rotates in the connecting groove and presses the arc-shaped plate to be deformed and bent, in the bending process, the contact pressure between the spatula and the frying pan is buffered, meanwhile, in the buffering process, the angle of the spatula for lifting dishes in the frying pan is changed through rotation of the rotating plate, and the phenomenon that the spatula is damaged in the dish frying process is avoided. The contact pressure between the turner and a frying pan is large, kitchen ware is damaged, meanwhile, the turning-frying angle of the turner is changed through rotation of the rotating plate, and the turner can turn dishes smoothly.

The utility model discloses a cable support for electric power engineering, which comprises a support seat and a fixing rod, the side end of the support seat is fixedly connected with a connecting seat, the side end of the connecting seat is fixedly connected with a fixing column, the top end of the fixing column is provided with a circular groove, the outside of the fixing column is slidably provided with an adjusting cover, and the inside of the adjusting cover is fixedly connected with an internal thread pipe. The inner threaded pipe is located in the circular groove, the inner threaded pipe is in threaded connection with a screw, the bottom of the fixing column is in sealed rotation connection with a rotating shaft, one end, extending into the circular groove, of the rotating shaft is fixedly connected with the bottom end of the screw, the fixing rod is fixedly connected with the upper side of the side end of the adjusting cover, and the top end of the fixing rod is slidably provided with a plurality of cable bases. The top end of the cable base is connected with a cable pressing base through a first screw, rainwater is prevented from entering the circular groove, the rainwater is prevented from making contact with the inner threaded pipe and the screw, corrosion damage to the inner threaded pipe and the screw is avoided, and the service life of the screw is guaranteed.

The utility model belongs to the technical field of grinding devices, and particularly relates to a feed salt caking grinding device which comprises a tank body, the upper end of the tank body is connected with a tank cover through screws, a motor is fixedly installed in the middle of the upper end of the tank cover, the output end of the motor penetrates through the tank cover and is rotationally connected with the tank cover, and a grinding mechanism is arranged on the tank body. A lifting plate is arranged on the grinding mechanism, a grinding head is fixedly mounted at the lower end of the lifting plate, the grinding head is movably connected with the tank body, and a hollow plate is fixedly connected into the tank body. The motor drives the square rod to rotate, then the sliding pipe drives the grinding head to rotate to grind a salt block, meanwhile, the air cylinder drives the grinding head to move up and down to hammer the salt block, the salt block is ground more efficiently and rapidly, meanwhile, through the elastic effect of the spring, the scraper can automatically stretch out and draw back in the grinding head, the salt block on the hollowed-out plate can be scraped, and the salt block grinding efficiency is improved. The salt particles are prevented from being extruded and agglomerated.

The application belongs to the technical field of coal mill safety equipment, and discloses a medium-speed coal mill coal blocking alarm device, which comprises a controller, an alarm lamp and a sensor, a signal interface and an assembling cavity are respectively arranged on the back of the controller, and an intermediate hole is arranged in the inside of the back of the controller. The gas is pressed into the elastic air bag through the cooperation of the rotating extrusion, the inflation effect after the inside of the elastic air bag is ventilated is utilized, the signal connector maintains good sealing after being sleeved, the air in the signal interface is extracted when the movable plug in the suction assembly is moved by the cooperation of the operation assembly, the signal connector is adsorbed and fixed after being sleeved with the sealing frame under the negative pressure, the stability after actual wiring installation is greatly improved, good plug-in stability can be maintained under external force pulling or vibration effect, the situation of relaxation and disconnection can be effectively avoided, the frequency of arranging artificial maintenance and troubleshooting can be reduced, the use effect is good, and the monitoring and alarm are stable and reliable.

The utility model belongs to the technical field of steel castings, and discloses a corrosion-resistant steel casting which comprises a steel casting body, a pair of installation grooves are symmetrically formed in the two sides of the top end of the steel casting body, a pair of clamping grooves are symmetrically formed in the two sides of each installation groove, the top end of the steel casting body is sleeved with a protection shell, and a pair of through grooves are symmetrically formed in the two sides of the top end of the protection shell. A through groove is formed in the steel casting body, a pair of sliding grooves are symmetrically formed in the two sides of the through groove, sliding blocks are slidably installed in the sliding grooves, clamping blocks are installed at the bottom ends of the opposite sides of the sliding blocks, a limiting block is installed in the middle of the through groove, threaded holes are formed in the positions, close to the clamping grooves, of the two sides of the steel casting body, and a pair of moving mechanisms are symmetrically installed on the two sides of the bottom end of the steel casting body. The protective shell is used for protecting the steel casting, corrosion of external factors to the steel casting is reduced, the service life of the steel casting is prolonged, the production and maintenance cost is reduced, and the conveying efficiency of the steel casting is improved by mounting and dismounting the moving mechanism.

The application discloses a composite current collector, an electrode pole piece and an electrochemical device. The composite current collector comprises a base, a first connecting layer and a first conductive layer. The first connecting layer is used for bonding the first conductive layer to a first surface of the base. A first passivation layer is formed on a surface of the first conductive layer close to the first connecting layer. The composite current collector can avoid the electrolyte from contacting the first conductive layer when entering from the side opposite to the first connecting layer, so as to prevent the first conductive layer from being corroded and damaged by the electrolyte, and improve the stability of the current collector.

The utility model discloses a gas cylinder support which comprises a bottom plate, a pushing frame, a leaning frame and at least two clamping structures, wheels are arranged on the two sides of one end of the bottom plate in a rotating mode, a supporting foot is arranged in the middle of the other end of the bottom plate, the pushing frame is installed at one end of the top of the bottom plate, the leaning frame is installed on the pushing frame, and the clamping structures are arranged on the supporting foot. An arc-shaped groove is formed in the leaning frame and used for containing a gas cylinder, the two clamping structures are distributed at a groove opening of the arc-shaped groove in the longitudinal direction and used for clamping the top side wall and the bottom side wall of the gas cylinder respectively so as to lock the gas cylinder into the arc-shaped groove, and each clamping structure comprises an arc-shaped clamping plate and two lug plates, and the opening of the arc-shaped clamping plate is opposite to the opening of the arc-shaped groove. The gas cylinder can be effectively prevented from toppling over, and the service life of the gas cylinder is prolonged.

The invention relates to a multi-angle movable car washing tank, belongs to the field of car washing tanks, and aims to solve the problem that an existing car washing tank cannot conveniently, efficiently and comprehensively clean the side faces, a chassis and tires of an engineering van. The multi-angle movable car washing tank comprises a tank body base, and a protective side plate is welded and fixed to the top end face of the tank body base; hydraulic rods are hinged to the protective side plates, an adjusting moving assembly is installed in the tank body base, and an all-dimensional cleaning assembly is installed in the tank body base. According to the device, the guide frame can be driven to do automatic and stable left-right reciprocating motion in combination with the guide rod, all first rubber barrels and second rubber barrels can be driven to do automatic and stable reciprocating rotation in the reciprocating motion process in cooperation with a coil, a traction rope and a volute spiral spring, and through cooperation with water spraying of all water spraying holes and brushing of all flexible brushes, the water spraying efficiency is improved. All-directional efficient cleaning treatment of wheels, the side faces of the bottom of a vehicle body and a chassis of the engineering vehicle is achieved.

The utility model discloses a ureteroscope orifice cleaning device, and relates to the technical field of medical instrument cleaning. The cleaning device comprises a liquid conveying shell, an outer cleaning pipe, an inner cleaning pipe and a liquid conveying pipe, the liquid conveying pipe is fixedly connected and communicated with the input end of the liquid conveying shell, the outer cleaning pipe and the inner cleaning pipe are fixedly installed and communicated with the output end of the liquid conveying shell, an outer cleaning cavity is formed in the outer cleaning pipe, and a plurality of cleaning nozzles are evenly installed on the inner wall face of the outer cleaning pipe. A sliding balloon is slidably mounted at the bottom end of the inner cleaning pipe and comprises a sliding baffle ring and an expansion balloon, the sliding baffle ring is slidably mounted in the inner cleaning pipe and communicated with the inner cleaning pipe, and the expansion balloon is fixedly connected and communicated with the bottom end of the sliding baffle ring. And a spray hole matched with the sliding baffle ring is formed in the bottom end of the inner cleaning pipe, the inner wall and the outer wall of the ureteroscope pipeline can be sprayed and scrubbed, ureteroscope instruments are prevented from being corroded and damaged, and therefore the service life of the ureteroscope is prolonged.