39results about How to "Adjustment diameter" patented technology

The invention relates to the technical field of fiber manufacturing, and in particular relates to a preparation method of polymer fiber-based ZnO nanowire fiber. The preparation method comprises the following steps: (1) carrying out electrostatic spinning on a polymer solution and a ZnO precursor to obtain nano-fiber containing a polymer and the ZnO precursor; (2) carrying out low-temperature heat treatment on the nano-fiber to obtain the nano-fiber containing uniformly-distributed Zn nanoparticles inside; (3) by combining a hydrothermal method, putting the nano-fiber into a growth solution and growing for a period of time, so that the Zn nano-particles on surfaces of the nano-fiber and inside the nano-fiber are self-assembled and grow into ZnO nanowires, thereby forming the polymer fiber-based ZnO nanowire fiber. The polymer fiber-based ZnO nanowire fiber prepared by the preparation method has a good mechanical property and contains high-ratio nano zinc oxide.

The invention relates to a method for preparing a carbon nano tube enhanced titanium-base compound material by in-suit reaction in order to solve the problems of low uniform dispersion and low structural completeness of a carbon nano tube in the conventional method for preparing the carbon nano tube enhanced titanium-base compound material and pollution to the titanium-base material caused by reaction of a carbon group and a titanium base body. The method comprises the following steps of: adding nickel nitrate hexahydrate and TiH2 powder into an ethanol solution, stirring and evaporating to obtain Ni-TiH2 compound powder; paving the Ni-TiH2 compound powder in a quartz boat, putting the quartz boat into deposition equipment, feeding H2, raising temperature, feeding CH4, and after the deposition is finished, stopping feeding the CH4 so as to obtain carbon nano tube / TiH2 compound power; pressing the carbon nano tube / TiH2 compound power into a block body, sintering, and re-pressing to obtain the carbon nano tube enhanced titanium-base compound material. Carbon nano tubes in the compound material are uniform to disperse and cannot be aggregated; the compound material is high in purity and has a complete structure; and reaction between the titanium and the defected carbon nano tube can be avoided.

The invention discloses a preparation method of a corn alcohol-soluble protein nanofiber membrane used for cell culture. The corn alcohol-soluble protein / polyvinyl alcohol nanofiber membrane is a cell culture carrier material, which comprises biodegradable natural polymer corn alcohol-soluble protein and polyvinyl alcohol as a biocompatible high polymer. The transverse dimension of a ribbon-like corn alcohol-soluble protein / polyvinyl alcohol nanofiber is 625 to 3,920 nanometers; and the nanofibers are stacked into the nanofiber membrane randomly. The corn alcohol-soluble protein / polyvinyl alcohol nanofiber membrane is made through electrostatic spinning process, the preparation method is simple and effective, preparation equipment is simple, the stability is high, and indexes such as the diameters of the nanofibers and the porosity of a membrane material and the like can be regulated through changes of the condition of the electrostatic spinning process. The experiment proves that compared with a common PC (polycarbonate) plate, the corn alcohol-soluble protein nanofiber membrane material contributes to proliferation of mouse embryonic stem cells, and the diameter of the stem cell clone cultured for 5 days reaches 100 micrometers. Moreover, the nanofiber membrane can be recycled after being steamed and pressed for 30 minutes at 120 DEG C.

To provide a mounting strap capable of being mounted in accordance with a size of an object to be mounted, easy to attach and detach and having high general purpose performance. According to a pipe hinge unit, when a button is pushed into a slide pipe until a fixed pin is butted to a portion intersected with an axial direction and a peripheral direction of a fixed pin slide hole, by urge force by a pipe return spring, the button is slid toward a side of a terminal end in the peripheral direction of the fixed pin slide hole, a rotational pipe is rotated relative to the button, thereby, a strap piece attached to the rotational pipe is rotated in an opening direction relative to a case main body attached to the slide pipe.

The invention discloses a coal mill for a boiler. The coal mill comprises a distributor, a dynamic separator, an upper frame body, a lower frame body and a base which are sequentially arranged from top to bottom, wherein a driving motor is arranged on the distributor; the distributor is in transmission connection with the driving motor; a rotary blade and a stationary blade are arranged in the dynamic separator; a refeed coal scuttle is arranged at the lower part of the dynamic separator; a loading rack and a pull rod are arranged below the refeed coal scuttle; the pull rod is arranged on one side of the loading rack; the loading rack is fixedly connected with the base through the pull rod; two grinding rollers are arranged on the inner side of a swinging and adjusting device; a motor is arranged on one side of the lower frame body; a speed reducer is arranged in the lower frame body. The coal mill for the boiler is compact in structure, stable in running, high in service efficiency and convenient to operate, can discharge dust during grinding to reduce pollution, and allows the diameter of ground coal powder to be adjusted.

The invention relates to a water wheel aerator impeller with an adjustable diameter. The impeller consists of a wheel disc and blades outside the wheel disc. Fixed mounts are uniformly distributed on the circumference of the wheel disc; both the fixed mounts and the blade shanks have connecting mechanisms which are mutually connected through multiple points; and the connection through different connecting points can reach the aim of adjusting the diameter of the impeller. In addition, under the condition of an unchanged impeller rotating speed, the linear speed is also increased or decreased so as to simultaneously adjust the underwater penetration of the impeller and make the aerator work at the high efficiency point.

The invention provides a material high-temperature mechanical performance test device in an aerodynamic heat-force coupling environment, which belongs to the technical field of the test of material high-temperature mechanical performance. The material high-temperature mechanical performance test device comprises a main machine framework, a mechanical loading system and a clamp water cooling system, wherein the main machine framework adopts a double-stand-column design, the lower end of an oil cylinder mechanism of the mechanical loading system penetrates through an upper crossbeam of the mainmachine framework and is fixed with the upper crossbeam in a thread manner, an upper drawing bar, an upper clamp and the like of the mechanical loading system are connected to the lower end of the oilcylinder mechanism, and other parts of the mechanical loading system are successively connected with a lower crossbeam. The clamp water cooling system is used for cooling a sample clamping mechanismin the mechanical loading system. The material high-temperature mechanical performance test device designs the main machine which can be matched with a coherent jet aerodynamic-heat coupling environment simulation test cabin, has a unique structure design, integrates multiple advanced test technologies, and can well implement the ultrahigh-temperature mechanical performance test of a ceramic material in the coherent jet aerodynamic-heat coupling environment.

The invention discloses a coupler facilitating limitation of an adjustable range. The coupler comprises a main coupler body, a connecting block, a center plate, a cylindrical pin and a reset spring, and the connecting block is clamped on the outer surface of the main coupler body; the center plate and a secondary coupler body are fixedly installed on the outer surface of the connecting block; anda limiting groove is formed in the outer surface of the secondary coupler body, and a sliding groove is formed in the inner surface of the connecting block. According to the coupler facilitating limitation of the adjustable range, an adjustable shaft body locking ring is arranged, and is easy to install in the coupler through a buckle installed on the outer surface of the shaft body locking ring,and both the inner surface of the shaft body locking ring and the inner surface of the coupler are provided with built-in grooves; movable blocks can be installed on the inner surfaces of the built-ingrooves slidably, and locating blocks with locking functions are fixedly installed on the outer surfaces of the movable blocks; and meanwhile, the outer surfaces of the locating blocks are provided with circular protruding structures facilitating extrusion, locking and fixation of the shaft body.

The invention provides a preparation method of a silicon dioxide nanorod array, comprising the following steps: mixing a surfactant organic solution with a sodium citrate aqueous solution, putting into a hydrophilic substrate, adding a basic catalyst, carrying out ultrasonic treatment, adding a silicon source, standing, and taking out the substrate to obtain the silicon dioxide nanorod array. Compared with the prior art, the invention has the following beneficial effects: with the utilization of the solubility difference of water-soluble salt in an organic solvent-water mixed solution, salt liquid drops are separated out and adsorbed on the hydrophilic substrate, the silicon source is subjected to catalytic hydrolysis by using an alkaline catalyst in the liquid drops to prepare the silicondioxide nano array on the substrate, and then seed-free one-step growth is achieved through a solution liquid-phase solid-phase growth mechanism; the used raw materials are cheap and free of pollution, the preparation process is simple and efficient, no pollutant is generated, energy consumption is low, the requirement for equipment operation is low, mass production is easy to expand, and the diameter and length of the silicon dioxide nanorods can be adjusted through the standing temperature and time.

The invention relates to a production device for spiral high-elasticity metal fiber filaments. The production device comprises a treating container, cooling devices, a traction device and a winding device, wherein the treating container, the cooling devices, the traction device and the winding device are sequentially connected from top to bottom; the production device further comprises a heating device arranged outside the treating container, and the heating device is used for heating the treating container; a sealing cover used for sealing the treating container is arranged at the upper end of the treating container and is provided with an air inlet hole and an air outlet hole, a flux pressing and blowing hole is formed in the bottom of the treating container, a center axis of the treating container is connected to a rotary motor through a connecting rod, and the rotary motor can control the treating container to rotate around the center axis. According to the production device, metal fibers filaments are directly formed in a molten-blown mode, the blowing speed of the metal fibers and the diameters of the fibers can be adjusted, and a single fiber filament can be pulled for spinning; the metal fibers become spiral and are fixed in shape by shape fixing devices. The metal fibers are high in elasticity and capable of being bent due to being spiral, and therefore the elasticity of the metal fibers can be greatly improved, and the brittleness of the metal fibers can be avoided. The production device is suitable for producing various metal fibers.

The invention discloses a novel building embedded part device convenient to adjust, comprising a hoop rod, a first support rod, a plug pin and a second support rod, a first lantern ring and a second lantern ring are mounted on the hoop rod, and the first lantern ring is positioned on the outer side of the second lantern ring; a movable groove is formed in the hoop rod; a limiting groove is reserved in the hoop rod; the limiting groove is located at the outer side of the movable groove; and the plug pin is installed on the outer side of the hoop rod, a stop rod is mutually connected with the plug pin through a connecting rod, the stop rod is provided with a magnet, a third supporting rod is installed on the outer side of the second supporting rod, and the third supporting rod is also mutually connected with the second supporting rod through an inserting rod and the limiting groove. According to the novel building embedded part device convenient to adjust, a square structure formed by connecting the hoop rods end to end is conveniently adjusted, so that the size of the square structure is adjusted, the diameter of a reinforcement cage composed of the main rod and the hoop rods is adjusted, and the requirements of building foundation pits of different sizes are conveniently met.

The invention relates to technical field of high-pressure reaction devices, and discloses a high-pressure digestion reaction inner container wiping device. The high-pressure digestion reaction inner container wiping device comprises an equipment body, wherein the top of the equipment body is fixedly provided with a hand rod; the inner top wall of the equipment body is fixedly connected with a screw; a regulating device is in sleeve connection to the outer surface of the screw; the regulating device is fixedly connected with two brackets which are symmetrical; and the brackets are hinged with aconnecting rod through a pin bolt; and the other end of the connecting rod is hinged with a fixed block through a bolt. The high-pressure digestion reaction inner container wiping device can push theconnecting rod, effectively regulates the diameter, relative to the equipment body, of a brush plate, can clean the portion, with an arc shape, on the bottom of the inner container, and solves the problems that clearing effect is not good as clearing is incomplete, cost is relatively high as a glass container is easily broken, environmental pollution is great as chemical waste liquor is treated difficulty, certain influences are caused on environment, and body health of people is harmed.

The invention provides a communication optical fiber cable collecting wheel with the diameter adjusted based on the rotating speed, and relates to the technical field of communication. The communication optical fiber cable collecting wheel capable of adjusting the diameter based on the rotating speed comprises baffles, a half roller is movably connected between the two baffles, a trapezoidal ironsheet is fixedly connected to the interior of the half roller, a telescopic rod is fixedly connected to the interior of the half roller, a pushing column is movably connected to the interior of a magnetic pole ring, and the magnetic pole ring is fixedly connected to the end, away from the half roller, of the telescopic rod. Through rotation of the roller, when the roller starts to operate, the diameter of the roller becomes smaller and smaller along with the rotation of the roller until the minimum diameter is kept unchanged, the effect of adjusting the diameter of the roller is achieved, a rack is driven to move through reduction of the roller, and in an optical fiber cable collecting process, a push plate pushes the optical fiber cable to the center position of the roller for collection,so that the effect of uniformly arranging the optical fiber cable is achieved.

The invention relates to a ball seat and a ball throwing sliding sleeve. The ball seat comprises a base body and a wear-resistant sleeve, wherein the base body is tubular and comprises a first inner diameter tube section; the inner diameter of the first inner diameter tube section is less than the inner diameter of the rest part of the base body; the wear-resistant sleeve is a thin-walled tube; the outer diameter of the wear-resistant sleeve is matched with the inner diameter of the first inner diameter tube section; the wear-resistant sleeve is arranged on the inner wall of the first inner diameter tube section in a sleeving manner; the hardness of the base body is lower than that of the wear-resistant sleeve. According to ball seat and the ball throwing sliding sleeve provided by the invention, during oil production, when flowing through the ball seat, the oil-containing liquid scours the wear-resistant sleeve when the flow speed is high and the flow is large, the wear-resistant sleeve is not damaged easily, and when the flow speed and the flow are reduced, the wear-resistant sleeve is easy to damage in a ball throwing fracturing way; in addition, the inner diameter of the base body is increased, so that the ball seat adapts to changes of the flow speed and the flow of the oil-containing liquid, the inner through diameter of the ball seat is adjusted, and the oil yield is increased.

The invention discloses a spraying device for electric porcelain insulator production. The spraying device comprises an inner frame, a gun body, a gun head and a discharge outlet, wherein the inner frame is arranged in the gun body; the gun head is fixedly connected to one end of the outer part of the gun body; the discharge outlet is arranged at the end part of the gun head; and an air port is arranged in one side of the bottom of the inner frame. Paint is prevented from polluting the interior of a paint bucket through cooperative operation mode of a clamping groove and an anti-adhesion layer; the anti-adhesion layer can be conveniently and directly replaced, the operation is convenient and effective, the interior of the paint bucket does not need to be cleaned, and therefore, the labor cost is greatly reduced and harm to a human body is reduced; the diameter of the anti-adhesion layer can be conveniently adjusted through an adjusting device; through the arrangement of a gun needle baffle, the pollution of paint dust to a gun needle is effectively prevented and the service life of a gun needle sealing ring is prolonged; the anti-adhesion layer is simple and convenient, and the anti-adhesion layer is suitable for wide popularization.

The invention discloses a locating pin with adjustable diameter, and belongs to the technical field of positioning pins. The positioning pin comprises a guide section, a positioning section and a fixed section which are sequentially arranged from top to bottom, the central axes of the guide section, the positioning section and the fixed section are coincident, the guide section is locked in the manner that meshing of teeth between the guide section and the fixed section is singe-face meshing, and the diameter of the positioning section is adjusted in the manner that meshing of teeth of the positioning section and the guide section is double-face meshing. The locating pin is mainly used for enabling the freedom degree of parts in the X and Y directions to be zero, the positioning accuracy of the parts is improved, the product yield is improved, the positioning pin can meet the universality requirement to a certain degree, and meanwhile, disassembling and assembling are convenient.

The invention discloses a stretchable rotating wheel. The stretchable rotating wheel comprises a column body (1) and a plurality of arc-shaped plates (2) which are arranged outside the column body (1), moreover, the plurality of arc-shaped plates (2) can be connected to form a circular ring-shaped wheel hub, the outer surface of the column body (1) is sleeved with a sleeve body capable of slidingin the axial direction of the column body (1), moreover, the outer surface of the column body (1) is provided with a plurality of grooves (3) which are arranged in the circumferential direction, the plurality of grooves (3) are formed in the axial direction of the column body (1) in an extending mode, the sleeve body can be embedded in the grooves (3), the exterior of the sleeve body is connectedwith the arc-shaped plates (2) through connecting rods (4) correspondingly, and stretchable rods (5) capable of stretching and retracting in the axial direction are further connected between the end surface of the column body (1) and the arc-shaped plates (2). According to the stretchable rotating wheel, the effects that the diameter of the stretchable rotating wheel can be adjusted according to requirements to a certain extent, the use efficiency is improved, and the use cost is reduced are achieved.

The invention discloses a cleaning device for anorectal care. The invention relates to the technical field of nursing equipment, including a cylinder. The lower end of the cylinder is provided with a cylinder cap. A guide block is fixedly installed on one side of the horizontal plate, a vertical guide groove is set on one side inside the cylinder, a guide rod is provided under the horizontal plate, a horizontal guide rod is provided under the guide block, and one end of the guide rod and The guide blocks are all located in the guide groove and can move along the guide groove. The other end of the guide rod is fixedly connected with the first disk. The top surface of the horizontal plate is provided with a through hole, and the top surface of the first disk is provided with a screw hole. corresponding to the through hole. The present invention has reasonable structural design, convenient use, and can facilitate the cleaning of anorectal disease, and can adjust the diameter of the device, so that the device can cooperate with the anorectal part of the patient, and can better treat the anorectal part Cleaning keeps the device clean and hygienic.

The invention discloses a soil deep mixing process for in-situ restoration of organic matter pollution, which includes the steps of marking the stirring hole, pre-stirring sinking, spraying and stirring up, stirring sinking and stirring up; the process of the invention has the advantages of fast dispersion of repairing agents , The advantages of uniform dispersion, efficient soil remediation, especially suitable for benzene, benzo(a)pyrene and other organic pollution in the deep soil. The invention also discloses a device for soil deep mixing process for in-situ restoration of organic matter pollution, including a machine frame, a stand, a vertical guide rail, a hoist, a restoration agent bucket, a delivery pump, a delivery hose, a lifting box, a stirring Pile driving mechanism, stirring pile, guide sleeve, observation camera, laser light, and control device; the device of the present invention cooperates with the structure of the repair agent nozzle on the two stirring piles, which can realize spraying repair agent while stirring; the winch cooperates with the vertical The guide rail further realizes the lifting and stirring function; the guide sleeve stabilizes the stirring pile and repairs the role of the chemical nozzle.

The invention relates to the technical field of sanitation supplies, in particular to an antibacterial care nursing pad which at least comprises a pad. The pad comprises a surface layer, an antibacterial flow guide inner core layer, a first covering layer, a traditional Chinese medicine layer, a dust-free paper sandwich layer and a second covering layer which are sequentially stacked on one another; saussurea involucrata powder is sprayed to form the traditional Chinese medicine layer. The antibacterial care nursing pad has the advantages that medicine properties of saussurea involucrata are utilized, and accordingly antibacterial nursing effects can be realized; oxidation of the saussurea involucrata and deterioration of the medicine properties of the saussurea involucrata can be prevented, and accordingly irritation on the skin of human bodies due to antioxidants can be prevented.

The invention discloses a locating pin with adjustable diameter, and belongs to the technical field of positioning pins. The positioning pin comprises a guide section, a positioning section and a fixed section which are sequentially arranged from top to bottom, the central axes of the guide section, the positioning section and the fixed section are coincident, the guide section is locked in the manner that meshing of teeth between the guide section and the fixed section is singe-face meshing, and the diameter of the positioning section is adjusted in the manner that meshing of teeth of the positioning section and the guide section is double-face meshing. The locating pin is mainly used for enabling the freedom degree of parts in the X and Y directions to be zero, the positioning accuracy of the parts is improved, the product yield is improved, the positioning pin can meet the universality requirement to a certain degree, and meanwhile, disassembling and assembling are convenient.

The invention relates to a carbon nano tube in an oriented array, a carbon-coated cobalt nano particle compound and a preparation method thereof. The preparation method comprises the following steps: firstly, a Co membrane is deposited on a Si substrate by means of magnetron sputtering; secondly, the Co membrane is oxidized during heating up plasma-enhanced chemical vapor deposition equipment so as to form small cobalt oxide nano particles; thirdly, working gas H2+CH4 is fed in so as to carry out deposition growth; and finally, the carbon nano tube in the oriented array and the carbon-coated cobalt nano particle composite material are obtained. The compound carbon nano tube is directionally perpendicular to the Si substrate, and the carbon-coated cobalt nano particle is adhered to the topsurface of the carbon nano tube in the oriented array, wherein the carbon nano tube is a multi-wall carbon nano tube; moreover, the cobalt particle is monocrystal cobalt. The preparation method is simple and has the advantages of one-step finishing, easy control and convenient industrial production; moreover, the prepared composite material has an enormous application prospect in fields such as high-density magnetic recording material, wave absorption, biological medicine, electromagnetic screen, sensor and catalytic materials.

The invention discloses a deep soil stirring process for in-situ remediation of organic pollution. The process includes the steps of marking stirring holes, pre-stirring and sinking, spraying pesticide and stirring and rising, stirring and sinking and stirring and rising. The process has the advantages of fast dispersion and even dispersion of the remediation agent, high soil remediation efficiency, so that the process is especially suitable for organic pollution in deep soil such as benzene, benzo (a) pyrene and the like. The invention further discloses a device for the deep soil stirring process for in-situ remediation of organic pollution, the device comprises a machine frame, a vertical frame, a vertical guide rail, a windlass, a remediation medicament barrel, a delivery pump, a delivery hose, a lifting box, a stirring pile driving mechanism, stirring piles, a guiding sleeve, an observation camera, laser lamps and a control device. According to the device, the two stirring piles are matched with the structure of a remediation agent spray pipe, so that the remediation agent can be sprayed while stirring; the windlass is matched with the vertical guide rail to further realize lifting and stirring functions; and the guiding sleeve stabilizes the stirring piles and repairs the function of the remediation agent spray pipe.

The invention discloses a coupling which is convenient to limit the adjustable range, which comprises a main coupling body, a connecting block, a center plate, a cylindrical pin and a return spring, and the outer surface of the main coupling body is engaged and installed There is a connecting block, and the outer surface of the connecting block is fixedly installed with the central plate and the secondary coupling body, and the outer surface of the secondary coupling body is provided with a limiting groove, and the inner surface of the connecting block is provided with a sliding groove. The shaft coupling that is convenient to limit the adjustable range is provided with an adjustable shaft locking ring, and the buckle installed on the outer surface of the shaft locking ring is convenient to install inside the coupling, and the shaft lock The inner surface of the tight ring and the inner surface of the coupling are also provided with a built-in groove, and the moving block can be slidably installed on the inner surface of the built-in groove, and the positioning block with locking ability is fixedly installed on the outer surface of the moving block, and simultaneously positioned The outer surface of the block has a circular convex structure, which is convenient for squeezing and locking the shaft body.

The invention relates to a production device for spiral high-elasticity metal fiber filaments. The production device comprises a treating container, cooling devices, a traction device and a winding device, wherein the treating container, the cooling devices, the traction device and the winding device are sequentially connected from top to bottom; the production device further comprises a heating device arranged outside the treating container, and the heating device is used for heating the treating container; a sealing cover used for sealing the treating container is arranged at the upper end of the treating container and is provided with an air inlet hole and an air outlet hole, a flux pressing and blowing hole is formed in the bottom of the treating container, a center axis of the treating container is connected to a rotary motor through a connecting rod, and the rotary motor can control the treating container to rotate around the center axis. According to the production device, metal fibers filaments are directly formed in a molten-blown mode, the blowing speed of the metal fibers and the diameters of the fibers can be adjusted, and a single fiber filament can be pulled for spinning; the metal fibers become spiral and are fixed in shape by shape fixing devices. The metal fibers are high in elasticity and capable of being bent due to being spiral, and therefore the elasticity of the metal fibers can be greatly improved, and the brittleness of the metal fibers can be avoided. The production device is suitable for producing various metal fibers.

The invention relates to the technical field of nursery stock planting, and discloses a nursery stock planting hole digger with tires provided with protection tracks. The nursery stock planting hole digger comprises top plates, a motor, two rotary knives, a bottom plate, the four tires and protection mechanisms; the motor is located below the top plates, the two rotary knives are located below themotor, and the bottom plate is located below the two rotary knives; the four tires are located on the left and right sides of the bottom plate, the protection mechanisms are arranged on the outer walls of the four tires, and the middles of the bottoms of the top plates are connected with the motor; a coupling is arranged at the output end of the motor, and the output end of the motor is connectedwith a rotating shaft through the coupling. According to the nursery stock planting hole digger, a rotating plate is mounted at the bottom of the rotating shaft, fixing blocks are arranged at the bottom of the rotating plate, the rotary knives are connected with the rotating plate through a fixing rod mounted at the tops of the rotary knives, after a bolt is removed manually, the rotary knives can freely move left and right so as to increase the distance between the two rotary knives, and thus the purpose of adjusting the diameter of a dug hole is achieved.

The invention relates to the field of photoelectric technologies, and discloses a drilling device for a photoelectric technical material. The drilling device comprises a machine shell, wherein a conveying device is arranged on the upper portion of the machine shell, platforms are arranged at the two sides of the machine shell, a first notch is formed in the surface of each platform, a metal ball is fixedly connected to the end, close to the outer wall of the machine shell, of each platform, a metal block is slidably connected to the surface of each metal ball, and a first long rod is slidablyconnected into the machine shell. According to the drilling device for the photoelectric technical material, a third long rod is rotated and pressed to enable a third stop block to slide in a fourth notch, the bottom end of the third long rod is fixedly connected with an expansion device, the bottom of a drilling device body is fixedly connected with a fourth stop block, the fourth stop block is trapezoidal, and when the third long rod drives the expansion device to move downwards, the fourth stop block extrudes first pushing blocks in sealing shells to drive a rubber ring to extrude the innerwall of a drill bit outwards, and therefore the effect of adjusting the diameter of the drill bit is achieved.

The invention relates to the technical field of nursing instruments, and discloses a cleaning device for anorectal department nursing. The cleaning device comprises a cylinder, wherein a cylinder capis arranged at the lower end of the cylinder, the cylinder is connected with the cylinder cap in a threaded fit mode, a transverse plate is arranged in the cylinder, a guide block is fixedly installedon one side of the transverse plate, a vertical guide groove is formed in one side of the interior of the cylinder, a guide rod is arranged below the transverse plate, a transverse guide rod is arranged below the guide block, one end of the guide rod and the guide block are both located in the guide groove and can move along the guide groove, the other end of the guide rod is fixedly connected with a first disc, a through hole is formed in the top face of the transverse plate, and a screw hole is formed in the top face of the first disc and corresponds to the through hole. According to the invention, the cleaning device is reasonable in structural design, convenient to use and capable of conveniently cleaning a patient of the anorectal department; and the diameter of the cleaning device can be adjusted, so that the cleaning device can be matched with the anorectal part of the patient, the anorectal part can be better cleaned, and the cleaning device can be kept clean and sanitary.

The invention relates to the field of machining, in particular to an automatic machining device for vehicle-mounted air conditioner accessories. The automatic machining device comprises a fixing base,wherein a rotating chassis is inserted on the fixing base, and one side of the rotating chassis penetrates through the fixing base and is fixedly connected with a first gear; a first rotating motor is fixedly connected in the fixing base, a plurality of sliding grooves are symmetrically formed in one side, far away from the first gear, of the rotating chassis, and sliding blocks are all insertedin the sliding grooves; springs are fixedly connected to one ends of the sliding blocks, and the tops of the sliding blocks penetrate through the sliding grooves and are fixedly connected with windingframes; and one side of the rotating chassis is fixedly connected with a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected with an adjusting chuck, the inner sides of the winding frames are fixedly connected with adjusting blocks, the rotating chassis is fixedly connected with a limiting block, and the limiting block is provided with a limiting groove.The device disclosed by the invention is specially used for capillary winding machining, so that the quality and efficiency of capillary winding are improved, and the device is suitable for popularization.