239results about How to "Prevent aging" patented technology

The invention discloses a high-hardness polyurethane material and a preparation method thereof.The preparation method comprises the steps that a polyol solution and a phenylethylene solution are mixed according to the same proportion, and a prepolymer is formed; putting the prepolymer and an isocyanate solution into a reaction kettle for pre-pressing, and carrying out heating reaction at a preset temperature; in the heating process, reducing a pressure value set by the reaction kettle at a preset time interval, and reducing a heating temperature value to form a polyurethane prepolymer; mixing the polyurethane prepolymer with a mixture of melamine powder and an isocyanate solution, and uniformly mixing by stirring to obtain a polyurethane blank; and putting the polyurethane blank and the inorganic filler into a reaction kettle for secondary heating to obtain polyurethane in an initial state, and cooling the polyurethane in the initial state to obtain the high-hardness polyurethane material. The hardness, high temperature resistance and mechanical stability of the polyurethane material can be effectively improved, and the technical problem of insufficient hardness in the prior art is solved.

The present invention relates to the field of cosmetic technology, and in particular to a composition for regulating skin microecology containing a biological fermentation product and its application. The composition comprises inulin, micrococcal lysate, bifid yeast fermentation product lysate, rice fermentation product filtrate, lactobacillus / soybean milk fermentation product filtrate and water. The composition can effectively adjust the balance of skin microecology, and has excellent effects of removing wrinkles, preventing aging, and moisturizing.

The invention discloses a strong acid and alkali resistant plastic material for fume hood surface decoration and a preparation method of the strong acid and alkali resistant plastic material, belongs to the technical field of plastic material processing, and aims at solving the technical problem that in the prior art, the acid and alkali resistance and the bending modulus of a plastic material for fume hood surface decoration need to be further improved. The preparation method specifically comprises the following steps: stirring amino-modified fluorosilicone resin, paraformaldehyde and 1, 4-dioxane in a reaction kettle, dropwise adding an anacardol solution, heating the reaction kettle to 85-95 DEG C, carrying out heat preservation reaction for 6-8 hours, and carrying out post-treatment to obtain the anacardol-based benzoxazine resin. Perfluoro-modified polysiloxane benzoxazine is prepared, naphthalene-containing epoxy resin and imidazole-modified silicon carbide microspheres are compounded, in-situ catalysis synergistic curing is carried out by using filler interface imidazole, a compact organic-inorganic hybrid interpenetrating network is constructed, and the strong acid and alkali corrosion resistance and bending modulus of the material are remarkably improved.

The invention provides a PEF composite board and a preparation method, and relates to the technical field of insulation boards, the composite PEF board is formed by bonding a plurality of layers of board bodies, and comprises a base layer, the base layer is prepared from the following components in parts by weight: 58 to 60 parts of HDPE (High-Density Polyethylene), 4 to 6 parts of nano montmorillonite, 1 to 2 parts of benzoyl peroxide, 2 to 5 parts of BHT (Butylated Hydroxytoluene) heat stabilizer and antioxidant, 2 to 5 parts of maleic anhydride grafted polyethylene, 0.2 to 1 part of magnesium stearate and 0.3 to 0.8 part of epoxidized soybean oil; comprising a fireproof layer which is composed of the following components in parts by weight: 45-55 parts of HDPE and 5-15 parts of a phosphate ester environment-friendly flame retardant; comprising a thermal insulation layer and is prepared from the following components in parts by weight: 45-55 parts of HDPE, 5-10 parts of lignin fibers and 5-10 parts of a bio-based foaming agent formed by mixing sodium bicarbonate and citric acid. The invention has the beneficial effects that the mechanical strength, flame retardant property and thermal insulation effect of the PEF plate are obviously improved, the weather resistance and environmental protection property are enhanced, the optimal balance of high performance and cost effectiveness is realized, and the PEF plate is suitable for various building and industrial application environments.

The utility model provides a multi-point oil supply lubricating device for a bearing of a phase modifier. The multi-point oil supply lubricating device comprises an oil storage and supply box body, an oil supply access pipe, three oil pumps, three groups of oil supply branch pipe assemblies and an adjusting and mounting protection frame, an oil supply access pipe is arranged at the top of the oil storage and supply tank body, three oil pumps are fixedly mounted on the oil storage and supply tank body, and the three oil pumps are connected with the three oil supply branch pipe assemblies correspondingly and used for extracting lubricating oil in the oil storage and supply tank body and independently conveying the lubricating oil to the corresponding oil supply branch pipe assemblies for fixed-point oil supply; one side of the top of the oil storage and supply tank body is provided with an adjusting and mounting protection frame capable of adjusting the positions of the three groups of oil supply branch pipe assemblies and protecting the three groups of oil supply branch pipe assemblies; and the adjusting and mounting protection frame comprises a mounting plate mounted on the oil storage and supply tank body and three protection pipe frames capable of adjusting the height and respectively penetrating through the three groups of oil supply branch pipe assemblies. Three paths of relatively independent oil supply structures can be formed, and a high-temperature protection effect can be achieved on the branch pipe part, close to the bearing part of the phase modifier, of the oil supply branch pipe assembly.

The invention provides an edible fungus culture medium filling device, and particularly relates to the technical field of edible fungus cultivation, the edible fungus culture medium filling device comprises a filling table, a right-angle plate is fixedly arranged on the upper surface of the filling table, a storage barrel used for containing an edible fungus culture medium is arranged at the top of the right-angle plate, and a filling pipe is arranged in the center of the bottom of the storage barrel in a communicating mode; a vertical plate is arranged on the groove plate in a sliding mode, a plurality of vibration balls are evenly arranged on the side, close to the filling bottle, of the lower portion of the vertical plate, and the vibration balls capable of continuously doing circular motion around the filling bottle are utilized to intermittently impact the outer wall of the filling bottle in a reciprocating mode, so that the filling bottle is promoted to be subjected to the effect of external vibration force in the process of receiving filling materials, and the filling bottle is prevented from falling off. Under the action of vibration force, the matrix material falling into the filling bottle is promoted to be better and uniformly distributed in the filling bottle, so that the matrix material is effectively prevented from being accumulated in the filling bottle, and subsequent uniform spreading and growth of edible mushroom hyphae in the matrix material are facilitated.

The invention relates to an iron-chromium flow battery electrolyte, a preparation method thereof and an iron-chromium flow battery. The iron-chromium flow battery electrolyte comprises a trivalent chromium ion organic complex, ferrous ions, hydrogen ions, lithium ions, metal ions except lithium, iron and chromium, and a solvent. An organic ligand in the trivalent chromium ion organic complex comprises a compound containing a carboxylic acid group and / or a compound containing an amino group. According to the iron-chromium flow battery electrolyte disclosed by the invention, the organic ligand and the trivalent chromium ions are complexed, and the catalytic action of the lithium ions and other metal ions except lithium, iron and chromium is combined, so that the reaction activity of chromium couple in the negative electrode electrolyte can be remarkably improved, the phenomenon that a large amount of trivalent chromium ions are aged is improved, the hydrogen evolution side reaction is reduced, and the service life of the iron-chromium flow battery is prolonged. And the charge-discharge capacity, the cycle stability and the energy efficiency of the iron-chromium flow battery are comprehensively improved, so that the purpose of high-efficiency operation of the iron-chromium flow battery is achieved.

The present invention belongs to the field of building construction technology, and in particular, relates to an integrated assembled composite floor with thermal insulation and sound insulation structure, including a floor body, the upper end of which is fixedly connected with a plurality of connectors distributed in a rectangular array, a hollow layer having a thermal insulation effect is provided inside the floor body, and ventilation steel pipes connected to the outside are embedded in the inner walls of both sides of the hollow layer; and an adjustment component is used to adjust the thermal insulation effect of the hollow layer according to the outside temperature. The present invention can adjust the ventilation rate of the ventilation steel pipe according to temperature changes by setting an adjustment component, thereby adjusting the thermal insulation effect by changing the air convection speed; by setting an adaptive sound insulation component, the electric field strength around the deformable sound absorbing member can be adjusted according to the sound pressure of the outside world, and the sound insulation effect can be adjusted by changing the deformation degree of the deformable sound absorbing member.

The application belongs to the field of battery state monitoring, and discloses a battery thermal runaway early warning method based on a single-point thin film pressure sensor. A single-point thin film pressure sensor is arranged between adjacent battery cells in a battery pack to sense the battery cell pressure signal in real time. The charging and discharging process of the battery pack is monitored through the battery cell pressure signal, and the cycle pressure peak value sequence and the valley value sequence of the last N charging and discharging cycle periods of each battery cell in the charging and discharging process are recorded adaptively, and the dynamic grading pressure early warning threshold of each battery cell is calculated based on the sequence. The battery cell abnormality is identified and the thermal runaway early warning is performed according to the dynamic grading pressure early warning threshold. The application effectively offsets the interference of factors such as the battery cell manufacturing tolerance, the sensor individual difference, the installation deviation and the battery cell expansion caused by the charging and discharging cycle through the dynamic grading threshold of each battery cell, so that the early warning result is more suitable for the actual state of the battery, and a reliable basis is provided for the thermal runaway early identification.

The utility model discloses a closed cabinet heat radiation structure, which comprises a casing, the upper end of the casing is fixedly connected with a control panel, the inside of one end of the casing close to the control panel is fixedly connected with an electronic component, and one side of the electronic component far away from the control panel is provided with a heat radiation assembly. The heat dissipation assembly comprises a first heat conduction plate fixedly connected to the end, away from the control panel, of the electronic element, a second heat conduction plate is fixedly connected to the upper end of the side, away from the electronic element, of the first heat conduction plate, and the end, away from the first heat conduction plate, of the second heat conduction plate penetrates through the machine shell. And the upper end of the water tank is fixedly connected with a water injection opening, the interior of the upper end of the water tank is fixedly connected with a water pump, the lower end of the water pump is fixedly connected with a water pumping pipe, and the heat dissipation effect in the machine shell can be improved through the heat dissipation assembly, so that part aging and damage caused by high temperature are avoided, and the service life of parts is prolonged.

The utility model belongs to the technical field of circuit breakers, and particularly relates to a molded case circuit breaker based on the Internet of Things. The circuit breaker comprises a circuit breaker body and further comprises a sealing mechanism, an end protection piece and a fixing piece, U-shaped installation notches are formed in wiring positions of the two ends of the circuit breaker body, limiting sliding grooves are formed in the two opposite sides of the installation notches, and the two sides of the sealing mechanism are limited in the limiting sliding grooves in a sliding mode; the sealing mechanism is detachably connected with the circuit breaker main body through a fixing piece, and a wire is arranged in the end protection piece in a penetrating mode. According to the circuit breaker device, the wiring end of the wire is protected in a hidden mode through the end protection piece, aging and corrosion caused by wind and sunlight are avoided, dustproof protection is conducted on the wiring position of the circuit breaker through cooperation of the end protection piece and the sealing mechanism, and therefore the stability and reliability of the circuit breaker device are effectively improved, and the service life of the circuit breaker device is prolonged.

The application discloses a shipborne aero-engine cleaning equipment in the technical field of engine cleaning equipment, which comprises a water tank, a box body, a pipe coiler assembly, an output assembly and a control assembly, wherein the box body is internally provided with a sealed chamber, the output assembly, the control assembly and the pipe coiler assembly are all installed in the sealed chamber, and the gap between the through hole and the water pipe is sealed through a sealing assembly, so that the water pipe can freely leave the sealed chamber while the sealing effect of the sealed chamber is guaranteed, the output assembly, the control assembly and the pipe coiler assembly are isolated from the external environment, the corrosion of the output assembly, the control assembly and the pipe coiler assembly by the high-salt-mist environment at sea is reduced, the aging of various devices is effectively alleviated, and the service life of the overall equipment in the high-salt-mist environment at sea is increased.

The utility model belongs to the technical field of ships, and discloses a cable protection device which comprises a protection pipe, a cable penetrates through the protection pipe, and a first discharge port is formed in the side face of the protection pipe and used for discharging accumulated water in the protection pipe. And the discharging component is connected to the protection pipe, and the discharging component can block or open the first discharging opening. According to the utility model, the outer side of the cable is protected through the protection pipe, and the side surface of the protection pipe is provided with the first discharge port, so that accumulated water in the protection pipe can be discharged in time, the cable is prevented from being soaked in water or a humid environment for a long time, the aging of the cable is slowed down, and the first discharge port can be blocked or opened by using the discharge part; in this way, accumulated water in the protection pipe or water entering the protection pipe can be drained in time according to needs, and the leakage component is connected to the protection pipe, so that the situations of loss and the like in the drainage process can be avoided.

The application belongs to the technical field of marine toilet, and particularly relates to a marine modular toilet rapid assembly system and method, which comprises a toilet body, a base and a water supply and drainage assembly, and further comprises: a welding reserved part installed outside the base; an embedded protection assembly and a positioning assembly installed inside the base, the embedded protection assembly being filled with a first heat absorber and a second heat absorber; during assembly, the welding reserved part is welded along an annular path, the positioning assembly is used for positioning the embedded protection assembly and the base, the deviation degree of the base is reduced, and the connection gap between the base and the ship body is closed by the positioning assembly, so that the second heat absorber is reduced in leakage. The first heat absorber and the second heat absorber are used to prevent pipeline aging or melting due to high welding temperature, the first positioning part and the second positioning part are used to reduce the deviation degree of the base and close the connection gap between the base and the ship body, so that the assembly efficiency of the base is improved.

The utility model relates to the technical field of solar cell module cleaning, and particularly discloses a solar cell module convenient for rainwater cleaning, which comprises a solar cell module body, a cleaning mechanism is arranged above the solar cell module body, the cleaning mechanism comprises a moving plate, a scraper is arranged at the bottom of the moving plate, and the scraper is arranged above the moving plate. Fixing shafts are arranged on the two sides of the moving plate, the fixing shaft located on the left side is fixedly connected with the outer side wall of the moving plate, the fixing shaft located on the right side is rotationally connected with the outer side wall of the moving plate, and rotating rings are arranged on the outer side walls of the two fixing shafts; the rotating ring located on the left side is movably connected to the outer wall of the fixed shaft located on the left side in a sleeving mode, the effect of conveniently cleaning dust and rainwater on the surface of the solar cell module body is achieved, the service life of the solar cell module is prolonged, the power generation efficiency is improved, and the device is simple in structure, convenient to operate and low in manufacturing cost.

The application relates to the field of piezoelectric pumps, in particular to a micro-nano piezoelectric air pump with air inlet and outlet on the same surface, which comprises a rack mechanism, an oil tank, an engine, a battery assembly and a silencer which are sequentially installed on a rack body, a moving piece located outside the rack body, a shell piece arranged outside the oil tank, a control piece arranged on the top of the shell piece and a tool box installed on one side of the shell piece. The piezoelectric ceramic prepared by adopting the micro-nano process is combined with the laser welding assembly mode instead of the adhesive assembly mode, so that the reliability risk of the aging of the adhesive layer and the decrease of the bonding force in the high-temperature, high-humidity and low-temperature environment is avoided, the air tightness and long-term consistency between the layers are ensured, and the durability of the product under the harsh working conditions such as vibration and mechanical impact is remarkably improved. Thirdly, the air inlet, the air outlet and the air exhaust are completed on the same structure surface, the flow path layout and the number of parts are simplified, and the assembly complexity and the cost are reduced.

The utility model relates to the technical field of sealing structures, in particular to a sealing structure for preventing leakage of a curtain wall, which is arranged between two adjacent curtain wall plates and comprises a keel, weather-proof sealant and clamping plates, the weather-proof sealant is fixed between the two curtain wall plates, and the clamping plates are fixed at two ends of the weather-proof sealant. The two sides of the clamping plates extend to the surface of the curtain wall plate and abut against the curtain wall plate. The bottom of the clamping plate below the curtain wall plate is fixed with the keel; rubber strips are arranged between the clamping plates and the curtain wall plate and tightly abut against the curtain wall plate and the clamping plates, a drainage cavity is formed between the two rubber strips, the bottom of the bolt sequentially penetrates through the clamping plates at the top of the curtain wall plate, the weather-proof sealant, the clamping plates at the bottom of the curtain wall plate and the keel and then is in threaded connection with the nut, the top of the nut abuts against the keel, and a gasket abuts against the position between the nut and the keel. Rubber gaskets are connected between the gaskets and the keels in an abutting mode, rubber strips are fixed between the curtain wall plate and the clamping plates, so that gaps between the curtain wall plate and the clamping plates are reduced, and meanwhile drainage cavities are formed between the rubber strips.

The invention discloses a transformer capable of reducing loss, and relates to the technical field of transformers, the transformer comprises a shell and an adjusting assembly, a guide plate is arranged at the upper part in the shell, a housing is arranged in the middle of the guide plate, the adjusting assembly is arranged at the inner side of the housing, the adjusting assembly comprises a shaft rod, and the shaft rod is arranged at the inner side of the housing; an adjusting cavity is formed in the lower portion of the shaft rod. When the device is used, the device can be automatically adjusted according to the temperature change in the transformer, so that when the temperature rises, the circulating flowing speed of oil liquid is increased, heat dissipation is accelerated, the heat dissipation efficiency of the device is positively correlated to be matched with the temperature change of the device, it is guaranteed that the device can dissipate heat in time, and the service life of the device is prolonged. According to the device, the temperature of the oil liquid is increased, additional loss increase caused by too high temperature is avoided, oil sludge mingled in the oil liquid can be separated and removed when the oil liquid is circulated, and the situation that the oil sludge adheres to the device, the heat dissipation performance of the device is reduced or the additional loss of the device is increased is avoided.

The application discloses a blue OLED device and a display device, which comprises an anode, a hole layer, a light-emitting layer, an electron layer and a cathode which are stacked in sequence; and further comprises an additional layer which is arranged between the hole layer and the light-emitting layer and / or arranged between the light-emitting layer and the electron layer. The blue OLED device provided by the application can effectively stabilize the exciton density in the light-emitting layer, inhibit TTA and TPA from the root cause, and solve the device aging problem caused by TTA and TPA.

The application relates to the technical field of mechanical seals, and discloses a combined sealing water-cooling mechanical seal structure, which comprises a rear bearing seat end, a front bearing seat end, a positioning hole and a shaft groove. The inner sides of the rear bearing seat end and the front bearing seat end are provided with a pressure-bearing bearing mechanism which is used for replacing traditional bearings to reduce wear caused by vertical stress. The inner side of the pressure-bearing bearing mechanism is provided with a water-cooling cooling mechanism which is used for assisting heat dissipation. The periphery of the water-cooling cooling mechanism is provided with a sealing mechanism which is used for sealing and packaging structure. The pressure-bearing bearing mechanism comprises an inner bearing seat end, the two sides of the inner bearing seat end are provided with matching ring grooves, the side surfaces of the matching ring grooves are slidably connected with rotating shaft rings, and the two sides of the inner bearing seat end are slidably connected with eight roller shaft columns. The application enhances oil distribution uniformity, reduces local dry friction and heat accumulation, thereby comprehensively improving transmission efficiency, reducing maintenance frequency, and effectively preventing jamming and early fatigue failure.

The utility model relates to the technical field of power equipment, in particular to a high-voltage power equipment grounding device, which comprises a device body, a grounding rod, a protection assembly and an alarm assembly are arranged in the device body, a conical head is arranged at the lower end of the grounding rod, a grip is arranged at the upper end of the grounding rod, and a mounting seat is arranged on the grip. The protection assembly is arranged on the outer side of the grounding rod in a sleeving mode, the alarm assembly is arranged on the protection assembly, the protection assembly comprises a first sleeve shell and a second sleeve shell, the side face of the first sleeve shell and the side face of the second sleeve shell are provided with a rotating base and an inserting shaft respectively, and the alarm assembly comprises a voltage detector. The voltage detector is respectively connected with a flash lamp and a loudspeaker, so that the external wrapping protection operation of the grounding rod can be realized, the wrapping structure can be flexibly disassembled and assembled, the regular overhaul and maintenance of the grounding rod can be facilitated, the circuit alarm operation in the equipment can be realized, and a worker can be effectively reminded to check and overhaul in time.

This utility model discloses a combined signal shielding cable, comprising a shielding paper layer, a PTFE tape layer covering the outer periphery of the shielding paper layer, a water-blocking layer covering the outer periphery of the PTFE tape layer, a tinned copper wire braided layer covering the outer periphery of the water-blocking layer, an outer insulation layer covering the outer periphery of the tinned copper wire braided layer, and a plurality of first conductor assemblies and a plurality of second conductor assemblies disposed within the shielding paper layer. The spaces between the plurality of first conductor assemblies, the plurality of second conductor assemblies, and the shielding paper layer are filled with a plurality of dispersed bulletproof wires and a plurality of fiberglass yarns. This utility model can adapt to complex and changing usage environments. By providing a multi-layered protective structure around the first and second conductor assemblies, it improves the cable's resistance to swaying, bending, corrosion, and aging, thereby extending the cable's service life.

The invention discloses an ultra-low temperature vacuum system of a Tokamak or star imitator adaptive to nuclear fusion, and relates to the technical field of nuclear fusion equipment, the ultra-low temperature vacuum system comprises a vacuum chamber, a plasma state sensor is embedded in the inner wall of the vacuum chamber, the outer end of the vacuum chamber is provided with a sealing interface, the outer end of the sealing interface is provided with a primary filter, and the primary filter is provided with a secondary filter. A getter bin is installed at the outer end of the primary filter, an auxiliary pump is installed at the outer end of the getter bin, a stop valve is installed at the outer end of the auxiliary pump, a cold trap is installed at the outer end of the stop valve, the side wall of the cold trap is connected with a refrigerating machine through a pipeline, and a main pump is installed at the outer end of the cold trap. By arranging a series of structures, the pain point of decoupling of a traditional system and plasma operation is thoroughly solved, all the components cooperate to guarantee the ultrahigh vacuum environment, interference of impurity gas on plasma constraint is greatly reduced, and the stability and success rate of a nuclear fusion experiment are remarkably improved.

The utility model relates to an intelligent toilet lid and an intelligent toilet. The intelligent toilet lid comprises a machine core base and a plasma generator. Wherein the machine core seat is used for covering a toilet seat, and a cavity is formed in the machine core seat; the plasma generator is arranged in the cavity and used for generating plasma. Plasma generated by the plasma generator has strong oxidizability and can effectively kill bacteria, viruses and molds. The gas containing ions and free electrons is diffused in the cavity of the machine core seat and can sterilize and disinfect the cavity of the whole machine core seat and components such as a circuit assembly in the cavity, and the plasma has a continuous sterilization effect on the cavity, so that mould breeding caused by a humid environment can be prevented, and the service life of the machine core seat is prolonged. Therefore, electrical elements in the machine core seat are prevented from being aged due to bacterial or mould erosion, and the service life is prolonged.

The utility model provides a power integration module protection structure comprising the following elements: a first heat radiation plate which passes through the opening position of a mounting groove and the end face of which is attached to the back of a power integration chip; the four second heat dissipation plates are vertically arranged on the end face of one end, close to the power integrated chip, of the first heat dissipation plate in a rectangular array mode, and the interiors of the second heat dissipation plates are communicated with the interior of the first heat dissipation plate; the second heat conduction columns are evenly arranged on the end faces of the adjacent ends of the four second heat dissipation plates, one ends of the second heat conduction columns penetrate through heat dissipation assemblies in second heat dissipation cavities formed in the second heat dissipation plates, the second heat conduction columns are arranged on the first heat dissipation plate, and cooling airflow is controlled to circularly flow in the first heat dissipation cavities and the second heat dissipation cavities; the mounting plate is detachably mounted at the opening position of the mounting groove; when the first heat dissipation plate is arranged in the mounting groove in a penetrating manner, the four second heat dissipation plates are arranged in the mounting groove in a penetrating manner; according to the utility model, the power integration module can be conveniently protected, and the heat radiation effect of the power integration module is improved.

The utility model relates to a box bottom cable moistureproof threading connection structure of a distribution box, comprising a distribution box body, the bottom of the distribution box body is provided with two wire inlets which are symmetrically distributed left and right, the distribution box body is internally provided with four moistureproof assemblies, every two of the four moistureproof assemblies are in one group, and the other two of the four moistureproof assemblies are in one group. The moisture-proof assemblies are symmetrically distributed up and down, each group of moisture-proof assemblies is mounted through a wire inlet, each moisture-proof assembly comprises a mounting base and a sealing ring, a cable enters the distribution box body through the interior of the mounting base, and after the cable is connected with an electrical element in the distribution box body, gas is injected into the cavity through the gas nozzle, so that the electrical element in the distribution box body is sealed. The sealing ring is tightly attached to the gap between the cable and the mounting base after expansion, so that a physical barrier is formed, moisture is effectively prevented from entering the box body, and cable insulation layer aging, metal part corrosion or short circuit faults caused by the moisture are avoided.

This invention belongs to the field of daily chemical products technology, specifically relating to an antibacterial care liquid and its preparation method. It is processed from main ingredients and auxiliary ingredients. The auxiliary ingredients include the following components by weight percentage: purified water 89.30%, silver ions 3%, honeysuckle extract 1.2%, wild chrysanthemum extract 1.2%, purslane extract 1.2%, clover extract 1.0%, gentian root extract 1.0%, hyaluronic acid 0.5%, carbomer 0.8%, and triethanolamine 0.8%. The main ingredient is American cockroach extract, and the weight ratio of the main ingredient to the auxiliary ingredients is 3:100. The product of this invention has the effects of repairing skin cells and slowing down skin aging. It can solve the problems of dry and loose skin, and at the same time, it can resist acne and pimples, remove acne marks, lighten scars, and make the skin moist, shiny, and elastic. It also has a good repairing effect on various wounds such as ultraviolet rays and radiation burns, as well as bedsores and frostbite.

The application discloses a clothes airing machine, which comprises a main machine, a clothes airing rod and a winding drive device. The main machine has a box body and the winding drive device is arranged in the box body. The clothes airing rod is arranged below the main machine. The clothes airing rod has a fixed rod and a telescopic rod arranged on the fixed rod. The winding drive device has a rope for pulling the clothes airing rod to realize lifting. The lower end of the rope is fixed on the telescopic rod. A first pulley is arranged in the box body and can give the rope an inward thrust force, so that the telescopic rod can be automatically retracted. The pure mechanical structure is adopted to realize the automatic retraction of the telescopic rod. The first pulley gives the rope an inward thrust force, drives the telescopic rod to move inward, effectively avoids the problem that the telescopic rod cannot be completely retracted or cannot be retracted to the position when the clothes airing rod is manually pulled and the clothes airing rod is recovered upward, avoids the collision between the telescopic rod and the box body, reduces the machine failure rate, guarantees that the telescopic rod can be smoothly recovered, and improves the use stability and reliability of the clothes airing machine.

The utility model discloses a yarn disc control system, including frame, control unit, yarn disc, driving gear and driven gear, control unit fixedly set up on frame, yarn disc rotatable installation is in on frame, the output shaft of control unit is connected with driving gear fixedly, driven gear is connected with yarn disc, driving gear is engaged with driven gear. This yarn disc control system effectively avoided the problem of yarn disc slip, can stable accurate control yarn disc movement simultaneously, and long service life, and the installation and maintenance are convenient.