1541results about How to "Extended use time" patented technology

The utility model relates to the technical field of sewage treatment, and discloses a multi-stage filtering type trash remover, the top end of each filter screen plate is fixedly connected with a conical filter plate, the top end of each filter screen plate is provided with a slot, each slot is internally provided with a water blocking plate, and the water blocking plate is provided with a water outlet. A collecting mechanism is arranged at the position, close to the inserting groove, of the bottom end of each filter screen plate, a drawing mechanism is arranged between the side ends of the water blocking plates, and a cleaning mechanism is arranged between the top ends of the conical filter plates. By means of the structure, the trash remover body can filter sewage normally, the water seepage effect of the filter screen plate and the conical filter plate cannot be affected, automatic cleaning of impurities can be achieved through cooperative arrangement of the drawing mechanism, the cleaning mechanism and other structures, manual cleaning is not needed, the cleaning difficulty is lowered, and the cleaning speed is increased.

The invention discloses an adsorption coupling contact precipitation defluorination system and a defluorination method, and the method comprises the following steps: feeding fluorine-containing mine water into a defluorination reaction tank, and carrying out adsorption defluorination on the fluorine-containing mine water through a defluorination filter material layer to obtain first defluorination mine water; feeding the calcium agent and the phosphorus agent according to the formula ratio into a fluorine removal reaction tank, removing fluorine through a catalytic reaction to obtain second fluorine-removed mine water, and then feeding the obtained second fluorine-removed mine water into a clean water tank; when the head loss of the second defluorination mine water exceeds a threshold value, feeding backwashing water and backwashing air into a defluorination reaction tank, and backwashing a filter material in a defluorination filter material layer; feeding the regenerated liquid into a defluorination reaction tank, soaking a defluorination filter material layer for 10-12 hours, and then discharging generated waste liquid into a lime reaction tank. According to the method disclosed by the invention, through adsorption, contact precipitation and regeneration, the carbon-based apatite adsorbed with fluorine ions in the defluorination reaction tank is used as a seed crystal for subsequent contact precipitation, so that the service time of a filter material in a defluorination filter material layer is effectively prolonged, and the regeneration frequency of the filter material is reduced.

The utility model discloses a high-temperature-resistant smoke automatic regulating valve which comprises a valve body, a power assembly is arranged at the top end of the valve body, the output end of the power assembly is fixed with a valve plate assembly in a transmission mode through a rotating rod, an air inlet assembly is arranged at the bottom end of the valve body, and the valve plate assembly comprises a valve plate body and outer cover pieces arranged on the outer side walls of the two ends of the valve plate body. A gas inlet hole is formed in the bottom end of the valve plate body, a rotating hole is formed in the top end of the valve plate body, a novel valve plate assembly structure is designed, a user can flatly replace the device in an existing flue gas adjusting valve, the top end of the device and a rotating rod are fixed in a transmission mode, and therefore when a heat exchange medium at the bottom flows into the valve plate body from a gas inlet pipe, the heat exchange medium is not prone to falling off. The disc groove structure formed in the valve plate body can fill three fourths of the area of the valve plate body, the cooling and heat exchange effects are achieved, and after a medium in the valve plate body reaches the designated temperature, the medium can be pumped out through the air inlet pipe and replaced, and the effect of keeping the proper temperature is achieved.

The invention discloses assembly type outer wall hoisting equipment, and relates to the technical field of building construction. The adjusting and adapting mechanism is located above the outer wall body. The number of the positioning mechanisms A is two, and the two positioning mechanisms A are installed at the top of the adjusting and adapting mechanism. The number of the connecting mechanisms is two, and the two connecting mechanisms are installed at the left end and the right end of the adjusting and adapting mechanism. The number of the guiding mechanisms is two, and the two guiding mechanisms are installed on the adjusting and adapting mechanism. The hoisting mechanism is mounted at the top end of the adjusting and adapting mechanism; the number of the positioning mechanisms B is two, and the two positioning mechanisms B are mounted on the front side and the rear side of the hoisting mechanism; a worker can conveniently and properly adjust the positions of the two movable adaptive frames according to the size of the outer wall body; the problems that generally, only walls of the same model can be hoisted, proper adjustment cannot be conducted according to the sizes of the walls, and the universality is low are solved.

The invention discloses a fairlead clamp insertion piece and a using method, and relates to the technical field of ship fairlead holes, the fairlead clamp insertion piece comprises a lower sleeve shell and an upper sleeve shell, the upper sleeve shell is placed on the top of the lower sleeve shell, and the lower sleeve shell and the upper sleeve shell are in butt joint through a mortise and tenon joint structure or are connected through an insertion structure; the mortise and tenon joint structure comprises connecting holes, limiting holes, limiting rods, threaded holes and screws, the connecting holes are distributed in the inner surface of the upper sleeve shell, the limiting holes are evenly formed in the outer surface of the lower sleeve shell, the limiting holes and the connecting holes are distributed in a cross shape, the limiting rods are inserted into the limiting holes, and the threaded holes are formed in the threaded holes. And threaded holes are formed in the outer surfaces of the limiting rods in a penetrating mode, and threaded rods are in threaded connection with the interiors of the threaded holes. The probability that the upper sleeve shell is separated from the lower sleeve shell in the using process is reduced in a mortise and tenon joint structure butt joint mode, the inserting piece can be firmly fixed in the ship cable guide clamp in a split type fastening connection mode, and reliability is higher.

The invention discloses a low-power-consumption fire behavior real-time auxiliary first aid method and system based on edge calculation, relates to the technical field of fire behavior auxiliary first aid, and is suitable for crowded areas of public buildings such as schools, hospitals, high-rise buildings, hotels and shopping malls. Environmental information such as personnel density, temperature and smoke concentration is collected in real time, and fire detection and dynamic evacuation path planning are carried out by using an edge calculation unit. The intelligent terminal adjusts the brightness and the color based on the dynamic path, and sound reminding is assisted, so that clear audio-visual guidance is realized. Under the condition of fire outage, through the optimized lighting strategy, the lighting strategy of each area is dynamically adjusted, so that the energy consumption is reduced, the service time of a standby power supply is effectively prolonged, and the safety and efficiency of personnel evacuation are effectively guaranteed.

The invention discloses a preparation method of an oxime ammonia ester modified self-repairing high-gloss hydroxypropyl dispersion. The preparation method comprises the following steps: S1, preparing an oxime ammonia ester modified monomer; s2, adding a solvent into a reaction kettle, and dropwise adding the mixed monomer C, the prepolymer B and an initiator into the reaction kettle; mixing and dropwise adding the mixed monomer D, a carboxyl-containing monomer and an initiator into the reaction kettle; and cooling, adding a neutralizer, adding deionized water for dispersion, and finally preparing the oxime ammonia ester modified self-repairing high-gloss hydroxypropyl dispersion. According to the invention, a two-step method is adopted, a hydroxypropyl dispersion is synthesized in a self-emulsifying manner, and a self-made monomer containing an oxime urethane bond is added, so that the emulsion has a self-repairing capability, can be self-repaired when a workpiece is damaged, and also has high gloss, high weather resistance and excellent chemical resistance; the service time is prolonged, and the maintenance cost is effectively reduced.

The invention relates to an elevation control and precise regulation and control method for frozen sand mold additive manufacturing in a time sequence space. According to the method, a mathematical model that the thickness of floating sand changes along with time due to moisture heat exchange of the frozen sand mold in air is established, and the thickness of the floating sand of frozen sand molds with different curved surfaces under the parameter conditions of different environment temperatures, time scales, sand mold materials, moisture contents and the like is predicted and fed back; and in the freezing printing process, real-time adhesive and height compensation is carried out on sand molds at different wall thicknesses, and the dimensional precision and geometric precision of the frozen sand molds are protected to a certain extent. According to the method, the problem of dimensional accuracy error caused by floating sand generated by heat exchange in air in the manufacturing and subsequent placing processes of the frozen sand mold is effectively solved, and the dimensional accuracy of the sand mold during casting is ensured.

The invention provides hydrogel wound dressing and a preparation method thereof.The hydrogel wound dressing comprises a hydrogel layer, a supporting layer and a protective layer, the hydrogel layer is prepared from, by mass, 10%-15% of polyvinylpyrrolidone, 5%-8% of polycaprolactone, 2%-4% of sodium carboxymethyl cellulose, 1%-3% of chitosan, 0.5%-1.5% of an antibacterial agent, 0.1%-0.3% of an antioxidant and the balance water; the invention discloses a graphene quantum dot gel which comprises the following components in percentage by weight: 0.01-0.1% of a growth factor, 0.1-0.5% of a temperature-sensitive polymer, 0.05-0.15% of graphene quantum dots, 0.5-1.5% of a self-healing polymer, 0.5-1.5% of a pH sensitive material, 0.1-0.3% of nano titanium dioxide and the balance of deionized water. The supporting layer is a porous polylactic acid film, and the thickness of the supporting layer is 0.1-0.3 mm; the protective layer is an air-permeable polyurethane film, and the thickness of the protective layer is 0.2-0.4 mm. Through the synergistic effect of an antibacterial agent, nano titanium dioxide and graphene quantum dots, the antibacterial performance of the dressing is remarkably improved.

The utility model relates to the technical field of reactors, in particular to a reactor for synthesizing vinyl chloride and a system for synthesizing vinyl chloride. The reactor shell comprises a cylindrical barrel, an upper sealing head and a lower sealing head; an upper top plate is fixedly arranged between the cylinder body and the upper sealing head; a lower bottom plate is fixedly arranged between the cylinder body and the lower sealing head; a plurality of heat exchange tubes are fixedly connected between the upper top plate and the lower bottom plate; the heat exchange tubes are of a hollow structure, and a hollow core tube with the two ends closed is arranged in the center of each heat exchange tube. The core tube is movably connected in the heat exchange tube through a positioning sheet; and the core tube and the positioning sheet are fixedly and / or movably connected.

The utility model provides an acid etching liquid recycling device which comprises a circulating box, an inner cavity is formed in the circulating box, a partition plate is fixedly connected to the middle end of the bottom of the inner cavity, a cleaning mechanism is arranged on the front side of the circulating box, and a dismounting mechanism is arranged on the left side of the inner cavity. An impurity filtering layer is arranged on the left side of the inner cavity through a dismounting mechanism, a degerming layer is fixedly connected to the lower portion of the dismounting mechanism, a guiding layer is fixedly connected to the lower portion of the degerming layer, an infusion pump is fixedly connected to the position, located on the left side of the partition plate, of the bottom of the inner cavity, and the input end of the infusion pump communicates with an input pipe; by arranging the cleaning mechanism, the top of the impurity filtering layer can be scraped and swept, large particles remaining on the top of the impurity filtering layer are pushed to the top of the connecting plate and fall into the inner side of the macromolecule dialysis layer through the leakage groove, and the situation that the filtering effect of the impurity filtering layer is affected due to excessive accumulation of the large particles is avoided.

The invention is suitable for the technical field of precision sensing, and provides a triaxial integrated MEMS gyroscope structure and a manufacturing method thereof, the structure comprises an intermediate coupling structure, first to sixth detection structures, a first driving structure and a second driving structure; the first to fourth detection structures are symmetrically arranged around the middle coupling structure and are respectively coupled with the middle coupling structure; the fifth detection structure is arranged in the first detection structure and is coupled with the first detection structure; the first driving structure is symmetrical about the first axis and is coupled with the first, second and fourth detection structures respectively; the sixth detection structure is arranged in the third detection structure and is coupled with the third detection structure; the second driving structure is symmetrical about the first axis and is coupled with the third detection structure, the second detection structure and the fourth detection structure respectively; the angular velocity in each axial direction is detected by using each detection structure. The size and the cost of the gyroscope can be reduced, and meanwhile, the environmental adaptability of the gyroscope is improved.

The invention relates to the technical field of silicon wafer cleaning, in particular to silicon wafer cleaning equipment and a cleaning method thereof.The silicon wafer cleaning equipment comprises a cleaning box, a plurality of baskets, an adjusting mechanism and a circulating stirring mechanism, the baskets are used for bearing silicon wafers, the baskets are sequentially stacked and placed in the cleaning box, and when the silicon wafers are placed in the cleaning box, the baskets are in a first state, and the baskets are in a second state; when the silicon wafer is not placed in the cleaning box and the flower basket is in a second state, the adjusting mechanism is located in the cleaning box and used for adjusting the inclination degree of the flower basket, and the circulating stirring mechanism is located in the cleaning box and located below the adjusting mechanism and used for stirring cleaning liquid in the cleaning box; and the circulating flow of the cleaning liquid in the cleaning box is realized. The silicon wafer in the inclined state can make full use of surface water drop tension, residual water spots on the surface of the silicon wafer are reduced, the circulation amount of cleaning liquid on the lower surface of the basket is larger, and the cleaning efficiency of the silicon wafer can be improved while the cleaning effect of the silicon wafer is ensured.

The utility model provides a portable lung type Tesla oxygen supply controller, and belongs to the technical field of control valves. The lower part of the fixing seat is tightly matched with a portable oxygen bottle opening; the lower part of the valve seat is fixedly connected with the upper part of the fixing seat; an outlet valve on a portable oxygen bottle opening penetrates through a central hole of the lower inner cavity of the fixed seat and enters a central cylindrical hole of the lower inner cavity of the valve seat to form an oxygen outlet channel; a Tesla valve element is installed in an inner cavity in the upper portion of the valve seat, a pressing seat is clamped into the inner cavity in the upper portion of the valve seat to press the Tesla valve element, a steel ball containing inner cavity is formed in the center in the pressing seat, a valve port is formed in the center of the bottom face of the steel ball containing inner cavity, and a steel ball used for opening and closing the valve port is placed in the steel ball containing inner cavity. The upper cover is fixedly connected to the upper portion of the valve seat to press the pressing seat and enable the steel ball containing inner cavity to form a sealed space, and the upper portion of the upper cover is connected with a face cover. The portable oxygen supply device is installed on the bottle opening of the portable oxygen supply device in a matched mode, and the oxygen using time of one bottle of the portable oxygen supply device can be prolonged to 40 min.

The invention discloses a method for recovering and liquefying carbon dioxide in natural gas, and relates to the technical field of natural gas processing. According to the device, the working table, the multi-stage absorption mechanism, the self-regeneration type alternate adsorption mechanism and the linkage part are matched to complete recovery and liquefaction of carbon dioxide in natural gas, and the linkage part is in transmission connection between the self-regeneration type alternate adsorption mechanism and the stirring and foaming integrated unit. Multiple reactions of hydrogen sulfide in natural gas are achieved, the removal effect is improved, the service life of an adsorption material is prolonged through the design of step-by-step saturation replacement of a sodium bicarbonate solution, the frequent replacement requirement is reduced, the solution can be dynamically replaced, and the continuity of the treatment process is kept. Through up-down alternate operation of the molecular sieves, water vapor adsorption and synchronous regeneration are realized, molecular sieve saturation is avoided, continuous and efficient natural gas treatment is ensured, and the overall treatment effect is improved.

The invention discloses an intelligent extension control module compatible with a Siemens Sinumek ONE system, the intelligent extension control module is integrated in a Siemens Sinumek ONE numerical control system, historical data and real-time data generated in a machining process are analyzed based on a machine learning algorithm, and the numerical control machining process is optimized by adjusting machining parameters; the intelligent expansion control module acquires system data in real time through a Sinumerik ONE communication interface, and performs data processing and analysis by using edge computing equipment of Siemens or a cloud platform to realize dynamic parameter adjustment; the method is not only suitable for optimization of single equipment, but also can realize global optimization and predictive maintenance in a multi-factory and multi-equipment cooperative working environment, so that the flexibility, the stability and the production efficiency of a production system are greatly enhanced.

The utility model discloses a hydrogen peroxide working solution purification system which is characterized in that firstly, a part of moisture content in a working solution is removed through an efficient coalescer, secondly, 90% of the working solution enters a vacuum dehydrator through metering of a liquid meter and control of an automatic control valve, and the moisture content in the working solution is removed again. The rest 10% of the working solution enters the alkali washing unit and then is collected to enter the post-treatment carclazyte bed, the acidity of the working solution entering the post-treatment carclazyte bed is reduced, the service time of activated aluminum oxide can be prolonged, the moisture content in the working solution is further removed through the post-treatment carclazyte bed, and degradation products in the working solution are adsorbed and regenerated; finally, the working solution enters the filtering unit to be filtered again, residual impurities and degradation products in the working solution are removed, and the purification operation of the working solution is completed.

The invention discloses a water adding and dust removing grooving machine which is composed of a driver, a grinding wheel cover plate, a grinding wheel cover, a machine shell and a handle shell, water retaining strips are arranged on the grinding wheel cover plate and the grinding wheel cover, the grinding wheel cover plate and the grinding wheel cover are connected to form an integral grinding wheel cover, sewage generated by cutting cannot be splashed to the body of a constructor, and the construction quality is improved. A rotor cooling air inlet and an annular water retaining ring are arranged on a handle shell, sewage generated by water adding and dust removal during cutting and carried micro-fine sand are prevented from being sucked into a shell cavity through negative pressure generated by rotation of a rotor cooling fan, winding insulating paint on a rotor and a stator, a commutator connected to a rotor spindle and bearings connected to the two ends are damaged, and the rotor cooling effect is achieved. A holding mode conforming to the use habits of operators is achieved, the head of the machine body is upward, the machine tail is downward for cutting, meanwhile, the hidden danger that water enters the cavity of the machine shell and leaks electricity to hurt people is prevented, and the machine has the advantages of being simple in structure, small in size, low in cost, long in service life and convenient to operate.

The invention discloses an adjustable tuyere camera, and relates to the technical field of tuyere cameras, the adjustable tuyere camera comprises a support body, a camera body and a lens, and further comprises a cleaning mechanism arranged at the output end of an electric push rod and used for wiping and cleaning the lens, the cleaning mechanism comprises a cleaning box, a driving assembly, a winding roller and an unwinding roller which are arranged on the side of the driving assembly, two winding drums which are respectively arranged on the winding roller and the unwinding roller through clamping assemblies, and cleaning cloth which is wound between the two winding drums. The cleaning cloth is driven to wipe the lens up and down, stubborn stains can be removed, the dust removal effect is better, the winding roller and the unwinding roller are driven by the driving assembly to rotate, the cleaning cloth roll is driven, the used cleaning cloth can be automatically replaced, the service life of the cleaning mechanism is prolonged, the workload of workers is reduced, and the cleaning efficiency is improved. The use is more convenient.

The invention relates to a recyclable TPEE film and a preparation method thereof. The recyclable TPEE film is prepared from the following raw materials in parts by weight: 100 parts of TPEE resin master batch, 0.5 to 2.0 parts of cross-linking agent, 1.5 to 2.5 parts of antioxidant, 0.5 to 1.0 part of tackifier and 15 to 18 parts of diatomite loaded nano titanium dioxide. The recyclable TPEE film provided by the invention has relatively high moisture permeability and tensile strength retention rate, and can be recycled.

The utility model relates to the technical field of fabric processing, in particular to ultraviolet-proof breathable warp-knitted fabric picking and dyeing equipment which comprises a machine body, fabric guiding and feeding openings are formed in the two ends of the machine body, a dye box is fixedly installed in the machine body, and a stirring structure is fixedly installed on the bottom end face of the dye box. A connecting plate is arranged above the stirring structure, the connecting plate is fixedly mounted in the dye box, a baffle plate is fixedly mounted above the connecting plate, a plurality of groups of circulating holes are formed in the surface of the baffle plate, and a first hydraulic cylinder is fixedly mounted on one side above the baffle plate. The third hydraulic cylinder pushes the cleaning plate downwards, the cleaning plate presses burrs located in the dye box downwards, the burrs can be pressed to the position above the baffle, the first hydraulic cylinder pushes the push plate and the brush, the burrs located on the cleaning plate and the baffle are pushed to one side of the baffle, and therefore the burrs can be cleaned conveniently. Therefore, subsequent overall cleaning of burrs is facilitated.

The invention discloses a gas forklift, which comprise a forklift body and also comprises a gas tank, wherein the gas tank is arranged on a rear seat of the forklift body through a fixed support; the fixed support comprises a support frame and clamp rings; the clamp rings are formed by hinging two arc-shaped clamp arms; the end parts of one arc-shaped clamp arm is provided with a clamp splice; the clamp splice is provided with a through hole; the end part of the other arc-shaped clamp arms is hinged with an insertion; and each insertion is provided with an insertion rod which passes through the through hole and is locked by a nut. By adopting the structure, the gas forklift disclosed by the invention has the following advantages that 1, as the gas tank is installed on the rear seat of the forklift, the service time of the gas of the forklift can be prolonged, frequent gas filling is avoided, and the working efficiency is increased; 2, meanwhile, the gas tank is convenient in replacement, so that operation troubles brought by opening the rear seat of the forklift when gas filling is performed are avoided; and 3, the two arc-shaped clamp arms can be conveniently connected or loosened, therefore, not only is the gas tank fixed but also the gas tank can be conveniently replaced.

The invention discloses a method and a sensor for testing the concentration of an analyte in a biological sample based on a multi-excitation mode, and belongs to the technical field of instant detection of the concentration of the analyte in the biological sample. The method comprises the following steps: inputting a first excitation signal and a second excitation signal to a first working electrode; inputting an excitation signal sequence to the second working electrode between the first excitation signal and the second excitation signal; acquiring the first excitation signal, the second excitation signal and the output current of the current acquisition point of the excitation signal sequence at regular intervals to obtain an output current group; and acquiring output voltages of voltage acquisition points of the first working electrode attenuation signal, the second working electrode attenuation signal and the counter electrode attenuation signal at regular intervals to obtain an output voltage group. According to the method, the mutual influence relationship among various interference factors related to the analyte is eliminated or weakened, and the accuracy, precision and aging resistance of concentration detection of the analyte in the biological sample are improved.

The invention provides an intelligent generation method, system and device for game images and animations and a medium, and the method specifically comprises the steps: obtaining user design demand data, carrying out the feature extraction and style recognition of the user design demand data through a deep learning algorithm, and obtaining the key feature data of the game images and animations; obtaining specified style parameters, and based on the specified style parameters, analyzing the game image and animation key feature data according to a pre-trained GAN model to generate a target game image and animation; acquiring user equipment data of current user equipment, and adaptively displaying the target game image and animation on the current user equipment according to the user equipment data. According to the method, the process of game development and animation production is simplified, the technical threshold is reduced, and the creation efficiency and quality are improved.

The present invention provides a vibration suppression system for a photovoltaic bracket and a single-axis photovoltaic bracket. The vibration suppression system includes a constraint protection unit, and the constraint protection unit includes a force transmission component, a vibration displacement amplification component, an eddy current energy dissipation component, and a high wind protection component. The input end of the force transmission component is connected to the two ends of the photovoltaic bracket in the rotation direction; the high wind protection component includes a magnetic conductor arranged on the outside of the transmission shaft, and the magnetic conductor has a magnetic attraction with the transmission shaft when the wind speed reaches the critical wind speed of static wind instability of the bracket. The single-axis photovoltaic bracket includes a photovoltaic panel, a photovoltaic panel rotating beam, and a vibration suppression system. The constraint protection unit of the vibration suppression system is divided into two groups, and the two groups of constraint protection units are respectively arranged at the two ends of the photovoltaic panel along the length direction; the force transmission component of the constraint protection unit is arranged parallel to the torsion surface of the photovoltaic panel, and the transmission shaft is arranged horizontally. The present invention has the advantages of avoiding damage to the bracket during wind vibration and improving the safety and reliability of the bracket.

The invention provides a vibration suppression system of a photovoltaic support and a single-shaft photovoltaic support, the vibration suppression system comprises a constraint protection unit, the constraint protection unit comprises a force transmission assembly, a vibration displacement amplification assembly, an eddy current energy consumption assembly and a strong wind protection assembly, and the input end of the force transmission assembly is connected to the two ends of the photovoltaic support in the rotation direction; the strong wind protection assembly comprises a magnetizer arranged on the outer side of the transmission shaft, and a magnetic attraction force exists between the magnetizer and the transmission shaft when the wind speed reaches the static wind instability critical wind speed of the support. The single-shaft photovoltaic support comprises a photovoltaic panel, a photovoltaic panel rotating beam and a vibration suppression system, the vibration suppression system is provided with two sets of constraint protection units, and the two sets of constraint protection units are arranged at the two ends, in the length direction, of the photovoltaic panel respectively; the force transmission assembly of the constraint protection unit is parallel to the torsion surface of the photovoltaic panel, and the transmission shaft is horizontally arranged. The invention has the advantages of avoiding bracket damage during wind vibration, improving the safety and reliability of the bracket and the like.

The abrasion-resistant chain is formed by connecting a plurality of chain link units in series, one end, provided with an end piece, of a pin shaft is provided with an oil injection hole channel, the oil injection hole channel is arranged in the axial direction of the pin shaft, one end, away from the end piece, of the oil injection hole channel is provided with an oil outlet channel communicated with the oil injection hole channel, and the oil outlet channel is arranged in the direction perpendicular to the axial direction of the pin shaft. The two ends of the oil outlet channel penetrate to the outer wall of the pin shaft. A plugging assembly is arranged at the end, close to the end piece, of the oil injection hole channel and comprises a clamping piece, a pressing piece and a spring. A through hole is formed in the center of the clamping piece, the clamping piece is arranged on the inner wall of the oil injection hole channel, and a clamping groove is formed in the bottom of the through hole; the pressing piece comprises a pressing part, a middle plate and a first connecting part arranged between the pressing part and the middle plate, and a sealing block is arranged below the middle plate; the pressing piece is rotationally arranged in the oil injection hole channel, the middle plate is slidably located in the through hole, the spring is located between the pressing part and the clamping piece, and the sealing block abuts against the side wall of the clamping groove.

The utility model discloses an air purification tank. Comprising a tank body, a plasma generator, a first filter plate, a water storage tank, a partition plate, a spraying mechanism, a water pumping pipe, a water pump, a water spraying pipe, a buckle, a nozzle, a water inlet pipe, a pipe cap, a motor, a first rotating seat, a second rotating seat, an inserting shaft, a reel, a filter screen cylinder, an activated carbon adsorption screen cylinder, a filter screen, an activated carbon adsorption screen, an inserting groove, a transmission mechanism, a rotating shaft, a rubber sleeve, a limiting seat, a cover, an auxiliary mechanism, a connecting seat and a lifting handle. The device comprises a tank body, a fixing frame, a fan, a second filter plate, lockable universal wheels, a controller, a control panel and buttons, a plasma generator is fixedly connected to the middle of the interior of the tank body, and a first filter plate is inserted into the front end of the tank body. Compared with the prior art, the air purifier has the advantages that the used part can be wound by using a new unwinding part through the coiled filter screen and the activated carbon adsorption screen, so that the air purification time of the air purifier can be greatly prolonged, and the air purifier is convenient to use.

The invention provides an aromatic essential oil composition as well as a preparation method and application thereof. The aromatic essential oil composition comprises the following raw materials in percentage by weight: 8-12% of wormwood essential oil, 0.5-2% of cedar essential oil, 0.5-2% of tea tree essential oil, 1-2.5% of lavender essential oil, 1-2.5% of sweet orange essential oil, 75-90% of base oil and 1-5% of a modifier which is tea cellulose nanocrystals. The tea cellulose nanocrystal is used as a modifier, so that the stability of the aromatic essential oil is enhanced, the volatilization of the aromatic essential oil is delayed, the utilization efficiency is improved, and the service time is prolonged, thereby widening the application range of the aromatic essential oil composition containing wormwood essential oil in aromatherapy.

The utility model belongs to the technical field of composite lining plates, and particularly relates to a high-strength composite lining plate which comprises a base plate, an embedding groove is formed in the front face of the base plate, a trapezoidal groove is further formed in the inner side of the embedding groove, a combined lining plate is arranged in the embedding groove, the combined lining plate comprises a plurality of sets of composite lining plates, and crushing teeth are arranged on the front faces of the composite lining plates. Trapezoid inserting sections are arranged on the back faces of the composite lining plates and are connected with the trapezoid grooves in an inserting mode, first screw holes are formed in the portions, located in the embedding grooves, of the base plate, countersunk head screw holes are formed in the composite lining plates, hexagon socket screws are connected between the countersunk head screw holes and the first screw holes, and rubber buffering gaskets are arranged on the portions, located between the upper trapezoid inserting sections and the lower trapezoid inserting sections, of the back faces of the composite lining plates. According to the device, the combined lining plate formed by combining a plurality of groups of composite lining plates is arranged, and the positions of the groups of composite lining plates can be switched according to the actual abrasion condition of each composite lining plate in the working process, so that each composite lining plate can be fully utilized, and the situation of plate waste is reduced.