61results about How to "Improve protection performance" patented technology

The disclosed positive feedback abnormal protective circuit for electronic ballast of a fluorescent lamp comprises a first secondary winding T2B of output inductance to connect to control end of an abnormal protective actuator Q3 through a limit and rectification circuit and filter circuit. Wherein, the Q3 control DC / DC converter to stop oscillating for abnormal condition. This invention can improve reliability without adding cost or complexity.

The invention discloses a liquid crystal television transport packaging box, which comprises a box body, a movable door is arranged on the top of the box body, two groups of symmetrical springs are fixedly connected to the inner side wall of the box body, and the other end of each group of springs is A buffer plate is fixedly connected, and a shockproof plate and two symmetrical uprights are fixedly connected to the inner bottom wall of the box respectively. The top of the shockproof plate is fixedly connected with supporting columns arranged equidistantly, and the top of each supporting column is connected with the supporting column. The bottom of the plate is fixedly connected, the top of the support plate is provided with a chute, and the middle of each column is provided with a cylindrical gap, and an air bag is arranged inside each gap, and the end of each air bag away from the support plate is fixedly connected There are inflatable tubes. The liquid crystal television transport packaging box can effectively fix and place liquid crystal televisions of different sizes, avoids collision damage of the liquid crystal television during transportation, has good fixing effect, high protection performance, and good shockproof effect.

The invention discloses a surface protection method for a samarium-cobalt magnet workpiece. The surface protection method comprises the following steps: depositing an Ni-based thin film on the surface of a pretreated samarium-cobalt magnet workpiece; and then carrying out vacuum heat treatment to obtain a surface protected samarium-cobalt magnet. In the surface protection method, the Ni-based thin film of a compact structure is obtained through the deposition on the surface of the samarium-cobalt magnet, so that oxidizing media can be effectively isolated; a protective film is redeposited on the surface of the Ni-based thin film, so that the protective performance of the thin film can also be improved furthermore; the deposited Ni-based thin film and Al2O3 thin film are of excellent high-temperature stability, so that samarium cobalt can be effectively protected under a high temperature, and then the problem that the samarium-cobalt magnet workpiece can be oxidized in a high-temperature environment to cause magnetic performance degradation is improved.

The invention discloses an N-(3,4-dihydroxyphenyl)ethyl-methyl acrylamide copolymer and a preparation method thereof. In the invention, with dopamine and a fluorine-containing compound as raw materials, the dopamine is modified with the fluorine-containing compound through copolymerization to prepare the copolymer containing a fluorine-containing compound side chain and a pyrocatechol anchoring group side chain. The copolymer, on one hand, has the pyrocatechol anchoring group of the dopamine, so that excellent adhesion performance is achieved, and on the other hand, has the fluorine-containing functional group, so that the copolymer has weather resistance, corrosion resistance and hydrophobicity and lipophobicity, thereby greatly improving the protective performance of a functional protective coating. The invention also discloses a functional protective surface material having excellent adhesion performance, which is prepared by self-assembling the N-(3,4-dihydroxyphenyl)ethyl-methyl acrylamide copolymer onto a surface of a material in a soaking manner. The material has excellent protective performance, super-hydrophobicity, anti-fouling performance and adhesion performance, is wide in substrate available range, and is toxic-free and zero-pollution.

The invention discloses an in-vitro artificial heart blood pump, comprising a shell, an impeller and a driving device, wherein a liquid inlet pipe is arranged in the axial center of the shell, and a liquid outlet pipe integrated with the shell is arranged on the radial end face of the shell; the impeller is arranged in the shell; the impeller comprises a rear cover plate and 4-6 twisted blades arranged on the end face of the rear cover plate, and an airbag filled with gas is arranged on the working face of each twisted blade; the thickness of the airbag is 1 / 6-1 / 4 times thickness of each twisted blade; and the airbag completely wraps the end of the liquid inlet of each twisted blade. The technical aim of the invention is to provide an in-vitro artificial heart blood pump which can greatly reduce the damage to blood components such as blood cells and platelets in blood in the process of delivering blood, improve the protection performance on blood and improve the rescue survival rate.

The invention provides a multi-purpose cosmetic case, and belongs to the field of cosmetic cases. The multi-purpose cosmetic case comprises a shell, an inner case body and a cover, wherein a fixing connecting block is arranged on one side wall of the shell, a pin body is arranged on one side wall, just opposite to the shell, of the fixing connecting block, a pin is arranged in the middle of the pin body, a button is arranged on one side of the fixing connecting block, an alarm is arranged below the fixing connecting block, a sponge mat is arranged in the shell, a baffle plate is arranged belowthe sponge mat, a power supply is arranged below the baffle plate, another power supply is arranged on one side of the power supply, the inner case body is arranged in the sponge mat, a partition plate is arranged in the middle of the inner case body, a plurality of grids of grooved plates are arranged on one side of the partition plate, first connecting plates are arranged on the side wall, justopposite to the fixing connecting block, of the shell, a rotation shaft is arranged in the first connecting plate, a second connecting plate is arranged on one side of the rotation shaft, and the cover is arranged on one side of the second connecting plate.

The invention discloses an energy-absorbing highway guardrail and a damping elastomer. The guardrail comprises a plurality of anti-collision guardrail units, each anti-collision guardrail unit comprises a corrugated plate, a standing column, the damping elastomer and a fastener, wherein the corrugated plates are fastened to the damping elastomers through the fasteners, and the adjacent anti-collision guardrail units are connected into a continuous guardrail through the corrugated plates; the damping elastomers are of single spiral structures, at least part of spiral gaps of the single spiral structures are filled with energy dissipation fillers and / or elastic fillers, the single spiral structures are installed on the stand columns, the end parts of the inner ends of the single spiral structures are fixed to the stand columns, and the end parts of the outer ends of the single spiral structures are fixed to the corrugated plates. The guardrail can be used for replacing an existing guardrail system, has stronger protection strength, the rigidity of a waveform guardrail, elasticity and excellent energy absorption and energy absorption as well as a more protective effect.

The invention discloses a protective and decorative yellow ceramic layer on a magnesium alloy surface and a preparation method thereof. The protective and decorative yellow ceramic layer is formed in the way that metal elements in a coloring agent are doped with MgO; and the content of the coloring agent in a micro-arc oxidation electrolyte and electric parameters (mainly including voltage and oxidation time) are regulated and controlled to regulate and control the content of the metal elements doped in a micro-arc oxidation ceramic layer so as to form a MgO yellow micro-arc oxidation ceramic layer with controllable doping content, the doping content of the metal elements is 0.5-10 at.%, the thickness of the ceramic layer is 5-30 [mu]m, and the yellow color is deepened with increase of the doping content. Compared with an existing yellow micro-arc oxidation ceramic layer on the magnesium alloy surface, the protective and decorative yellow ceramic layer on the magnesium alloy surface has the advantages that the process problems of poor solution stability and existence of safety hazards are solved, and particularly, the dark yellow micro-arc oxidation ceramic layer has more excellent protective performance than a traditional white micro-arc oxidation ceramic layer, therefore is more suitable for industrial popularization, and can be applied in the fields of 3C and decoration.

The invention provides a mobile phone shell and a forming method thereof. The mobile phone shell comprises a shell, wherein the shell wraps the back surface and the side surface of a mobile phone, theshell comprises a hard skeleton, an outer silica gel layer which is formed on the outer surface of the hard skeleton and an inner silica gel layer which is formed on the inner surface of the hard skeleton, the hard skeleton is a PC skeleton, and both the outer silica gel layer and the inner silica gel layer are formed in a way that liquid silica gel is solidified. The mobile phone shell comprisesthe hard skeleton, the outer silica gel layer which is formed on the outer surface of the hard skeleton and the inner silica gel layer which is formed on the inner surface of the hard skeleton, and both the inner silica gel layer and the outer silica gel layer are made of the liquid silica gel, so that the elasticity of the mobile phone shell is good, the protective performance is improved, and the liquid silica gel has the advantages of safety and environmental friendliness, so that the safety and environmental friendliness of the mobile phone shell are increased. In addition, by adopting the liquid silica gel, the hand feeling of the mobile phone shell is fine and smooth, the mobile phone shell is waterproof and resistant to dirty, and the user experience is increased.

The invention discloses a slope protection construction method of a reservoir gentle slope. The method comprises following steps: firstly, the slope is shaped, multiple crossed grooves are dug in the slope longitudinally and transversely, and grids are formed; secondly, reinforcing steel bars are laid in the grooves, concrete is poured, curing is carried out for 10 to 15 days, and concrete grids are formed; thirdly, seeding is carried out, modified soil mixed with grass seeds is sprayed to the grids of the slope, and is pressed and flattened, non-woven fabric is laid, and construction and seeding are finished, wherein the modified soil in the third step is made of raw materials including, by weight part, 9 parts to 13 parts of bentonite, 5 parts to 12 parts of kaolin, 2 parts to 7 parts of corn starch, 1 part to 3 parts of mesh polypropylene-fiber, 3 parts to 9 parts of coal ash, 1 part to 5 parts of fertilizer, 7 parts to 15 parts of clay and 9 parts to 13 parts of fine silica powder. According to the slope protection construction method of the reservoir gentle slope, the modified soil is added during construction, the surface layer soil stability can be improved, soil losses are small, and the good ecological protection effect can be obtained.

The invention discloses an environment-friendly new energy charging pile which comprises a charging pile body, a base is arranged at the bottom of the charging pile body, a bottom plate is arranged atthe top of an inner cavity of the base, a supporting rod is fixedly connected to the top of the bottom plate, and the top of the supporting rod penetrates through the top of the base and is fixedly connected with the charging pile body. The charging pile comprises the charging pile body, the base, the bottom plate, the supporting rod, a first spring, a first fixing shell, a rain baffle, a fixingbox, a vertical rod, a sliding block, a second spring, a third spring, a connecting rod, a second fixing shell, a fourth spring, a pressing plate, a pressing wheel, a protection plate, a groove, a fifth spring, a limiting plate, a limiting rod, a sliding rod, a sixth spring, a sliding sleeve, a movable rod, a push plate, and a supporting strip, so that the protection performance of the charging pile can be improved, the problem that an existing environment-friendly new energy charging pile is poor in protection performance is solved, and the environment-friendly new energy charging pile has the advantage of being good in protection performance and is worthy of popularization.

The invention relates to an ultraviolet-resistant polychromatic fiber. The polychromatic fiber at least comprises a photochromic fiber. In the technical scheme, a polymethyl methacrylate modified photochromic agent is added in a polymer filer, the distribution uniformity of a photochromic material in the polymer fiber is realized due to the coating of polymethyl methacrylate, and the photochromicagent not only comprises an inorganic reversible photochromic agent, but also comprises an organic photochromic agent, so that the good ultraviolet photochromic property is achieved, and the protective performance of the fiber to ultraviolet rays is improved. The fiber can have a relatively good ultraviolet-resistant function if being applied to a textile fabric and has a relatively good protecting effect for damage caused by the ultraviolet rays if being applied to the field of environment friendliness; and on the other hand, if the fiber is applied to the field of solar energy, the utilization ratio of the solar energy can be increased, and the utilization ratio of the solar energy can be adjusted.

The invention discloses a medical antibacterial mask with adjustable shape, comprising: a mask body, ear hanging ropes and metal support bars, the ear hanging ropes are connected to the left and right ends of the mask body, and the mask body is rectangular structure, there are four metal support bars, including: two upper and lower bars located in the length direction of the mask body, and two left and right bars located in the width direction of the mask body. The four metal support bars are soft Titanium alloy support bar, the middle part of the mask body is also provided with folds that can be stretched outward, and the inside of the mask body is provided with a cavity filled with activated carbon particles. Through the above method, the present invention can adjust the shape of the mask body to match the face shape of the wearer by bending the soft titanium alloy support bar. There are cavities between the masks, so that the masks can improve the protective performance and the wearing comfort at the same time.

The invention discloses sealing type protective clothing for a biological safety experiment. According to the sealing type protective clothing for the biological safety experiment, a micro suction pump is arranged, the protective clothing can be appropriately reduced, so that the protective clothing can be tightly attached to an experimenter and can be fitter, and the problem that the experiment is hindered due to the fact that the clothing is too loose is avoided; according to the sealing type protective clothing for the biological safety experiment, the protective clothing is divided into aplurality of independent breathable areas, and a breathable control valve is arranged at the position, corresponding to each breathable area, of the protective clothing; and a controller controls thebreathable control valves to be alternately opened and closed in sequence, so that the effect of circulating air flow of all body parts of a user can be realized, the comfort degree is improved, uniform air circulation of all parts of the body can be realized, meanwhile, the ventilation circulation is internal circulation and is not in contact with the external environment, the protection performance can be improved, and adverse effects on the body, caused by air flow in the experiment position, can be prevented.

The invention discloses a fire hydrant with the protection function. The fire hydrant comprises a bottom plate and a fire hydrant body, the fire hydrant body is installed at the top of the bottom plate, and bolts are installed at the top of the bottom plate. By arranging a buffer assembly, when a vehicle collides with the fire hydrant, the vehicle firstly makes contact with a buffer pad on the surface of a fixing plate, the buffer pad buffers the vehicle, meanwhile, the fixing plate is in rigid connection with the bottom plate and the top plate, a certain anti-collision function is achieved, and when the fixing plate is collided to be damaged, the vehicle makes contact with a buffer plate, and impact force is generated on the buffer plate; a first spring and a second spring deform, elasticpotential energy is stored, impact force is buffered, meanwhile, a protective pad in a protective sleeve protects the fire hydrant body, the protective performance of the fire hydrant is improved, good protection on the fire hydrant is formed, the fire hydrant is prevented from being damaged, the maintenance cost is reduced, and the anti-collision effect is better; and great convenience is brought to a user.

The invention discloses a self-healing bulletproof composite material which is characterized by comprising a four-layer structure which comprises a surface layer, a rubber layer, a ceramic layer and a resistant layer. The surface layer is composed of a chloroprene rubber composite material or a polycarbonate film material, the rubber layer is composed of natural rubber or non-vulcanized rubber, the ceramic layer comprises corundum or silicon carbide or boron carbide components, the resistant layer is composed of TC4 titanium alloy or a fiber composite material, the layers are connected in an adhesive mode through adhesives, and the surface density is 40-75Kg / m2. The bulletproof material of a composite structure has the advantages of being low in weight, capable of being repaired, capable of healing automatically and resistant to impact of multiple bullets, can serve as a protective material against medium-and-small caliber armor-piercing incendiaries with the caliber of 7.62mm or above, and can be used for manufacturing bulletproof helmets and naval vessel decks.

The invention discloses an epoxy-acrylic acid antiseptic water paint for yttrium aluminium garnet modified copper sculpture. The epoxy-acrylic acid antiseptic water paint is prepared from, by weight, 40-60 parts of epoxy resin E-44, 2-4 parts of amino resin, 10-15 parts of ethylene glycol butyl ether, 15-25 parts of n-butyl alcohol, 6-8 parts of methacrylic acid, 4-6 parts of styrene, 2-4 parts of butyl acrylate, 1-2 parts of itaconic acid di-butyl ester, 0.5-1 part of benzoyl peroxide, 4-6 parts of N,N-dicarboxy ethyl alcohol, 0.5-1 part of nanometer cerium fluoride, 3-5 parts of titanium dioxide nanotubes, 2-4 parts of nanometer yttrium aluminum garnet powder, 0.3-0.5 part of 1,2-aminoazophenylene, 0.1-0.15 part of gamma-mercaptopropyl triethoxy silane, 3-5 parts of PTFE emulsion and 100-120 parts of water. The copper sculpture water paint has the good antiseptic performance, mechanical performance and long-acting effectiveness, high in hardness, good in glossiness and high in weather resistance.

The invention belongs to the technical field of anticorrosive materials in a marine environment, and particularly relates to an FG-coated MOF composite material, a coating containing the composite material, and preparation methods and application of the composite material and coating. The preparation method of the coating comprises the following steps: dispersing FG in absolute methanol, carryingout ultrasonic oscillation, adding a metal salt and an imidazole ligand into an FG methanol dispersion liquid, conducting stirring to obtain a turbid liquid, carrying out centrifugal separation to obtain a solid, alternately conducting washing with methanol and deionized water, and carrying out vacuum drying to obtain an FG-coated MOF composite material; and mixing epoxy resin, the FG-coated MOF composite material and a diluent, carrying out ball-milling stirring, adding a curing agent, and conducting uniform mixing to obtain a composite coating. A composite coating layer is obtained by coating the surface of a pretreated metal matrix with the composite coating, and conducting drying and curing. The epoxy resin is modified by the FG-coated MOF composite material, so that an imidazole ringin the composite material is chemically bonded with the epoxy resin, the problem of interfacial compatibility between the FG and the epoxy resin is solved, and the corrosion resistance and the mechanical property of an epoxy resin coating are improved.

The invention relates to the technical field of aviation and discloses an aviation interface. The interface comprises a wave protection shell and a transverse displacement rod, wherein a ventilation device is arranged on a front face of the protection shell, and a wire connection interface is fixedly connected wit the position, close to the middle, of a right side wall of the protection shell. Theinvention discloses a high-reliability, long-service-life and light-weight aviation interface control device. Through cooperation of a pressure box, a support rod and a separation plate, internal equipment is damped in the vertical direction; through cooperation of a transverse displacement rod, a spring I, a longitudinal displacement rod and a spring II, shock absorption in horizontal directionis performed, horizontal damping is performed, influence of vibration on use of the equipment is prevented, the service life of the equipment is prolonged, internal circuit connection is contact connection, connection stability is high, use reliability is improved, the protective shell is made of a carbon fiber composite material, the carbon fiber has advantages of high strength and light weight,and the carbon fiber has good electromagnetic shielding performance.

The invention discloses a temporary storage device for neurological drug waste. The temporary storage device comprises a flip type box body and an inner container, and the inner container is arrangedin the flip type box body; a pushing control mechanism is arranged in the flip type box body, and attached to the lower end face of the inner container, and a garbage bag is arranged in the inner container in a sleeving mode; and a guide hopper is arranged above the inner container. According to the temporary storage device, an existing flip type box body is improved, and the garbage bag is arranged in the inner container in the sleeving mode; waste is thrown into the garbage bag through the guide hopper at the upper portion of the inner container; when the garbage bag needs to be replaced, acover plate at the upper end of the box body is opened, and the guide hopper is taken down; the upper portion of the garbage bag is subjected to hot melt sealing through the sealing control mechanism;after sealing, the inner container and the garbage bag are pushed upwards and extend out of the flip type box body through the pushing control mechanism, and the garbage bag is taken out; and the structure is simple, and workers can be effectively prevented from making direct contact with the waste.

The invention provides an automobile front bumper structure comprising a front bumper main body, a middle net main body, a front bumper lining right rack, a front bumper lining left rack, a middle net truck loading right rack, a middle net truck loading left rack, a middle net truck loading middle rack, a middle net protection bar, a right ventilating window grid, a left ventilating window grid, a ventilating window right pedestal, a ventilating window left pedestal, a middle net supporting frame, a front bumper lining rack, a front bumper truck cover, a middle electric eye rack, a lower protection plate, a lower protection lining rack, a right foglight eyebrow frame, a left foglight eyebrow light, a front bumper lower protection bar and a front bumper reinforcing plate. The front bumper structure has high protection performance and can effectively improve automobile safety.

The invention relates to Al-Ca-Ba infrared glass provided with a protective film and a preparation method of the Al-Ca-Ba infrared glass. The Al-Ca-Ba infrared glass comprises an Al-Ca-Ba infrared glass base layer, an Al2O3 layer deposited in the Al-Ca-Ba infrared glass base layer and a SiO2 layer deposited in the Al2O3 layer. The Al-Ca-Ba infrared glass provided with the protective film is easy to prepare and simple in structure, the attachment performance is improved, and the protective performance of the Al-Ca-Ba infrared glass is enhanced.

The invention relates to a filtering material for improving the protection performance of a daily mask. According to the invention, kaolinite powder, calcium bentonite and tourmaline powder are used as raw materials, and a purifying material with dual functions of super-strong air permeability and filterability is developed through a nano-processing modification technology, so that a mask processed from the purifying material has an extremely good application effect, wherein when the respiratory flow is 30-35 liters per minute, the filtering resistance is 11-13 Pa and reaches a human body comfortable inspiration value, when the respiratory flow is 30 liters per minute, the filtering efficiency reaches 98% or above, when the respiratory flow rises, the filtering resistance is lower than thelimit value specified in GB2626-2006, and when the respiratory flow is 90 liters per minute, the filtering efficiency still reaches 92% or above. so that the performance is excellent during high-intensity breathing; and compared with an existing filter material, the filtering material of the invention is optimal in comprehensive performance and can meet the requirements of a human body for breathing comfort and clean air at the same time.

The invention discloses a protective device with a flange plastic-coated steel tube and a protective packaging method thereof. The protective device comprises mounting discs, a stud, an inner supporting frame and an outer locking frame, wherein the circle centers of the mounting discs are fixedly connected to screw sleeves; the inner sides of the screw sleeves are rotatably connected to the stud;the left end of the stud is fixedly connected to a hoisting ring; and the right end of the stud is rotatably connected to a rotary disc. According to the protective device with the flange plastic-coated steel tube disclosed by the invention, a bracket type transportation structure is adopted, and a plastic-coated steel tube bracket can be mounted between two groups of mounting discs, so that innersurface wall contact wear phenomena of the plastic-coated steel tube during the plastic-coated steel tube hoisting and transporting are reduced, and therefore, protective performance during plastic-coated steel tube transportation is improved; and a stacking splicing structure is arranged inside the plastic-coated steel tube, so that the plastic-coated steel tube is in non-contact type stacking and transporting, and outer surface wall collision and scratch phenomena of the plastic-coated steel tube during plastic-coated steel tube stacking and transporting are reduced, and therefore, protective performance for plastic-coated steel tube transportation is further improved, and the service life of the plastic-coated steel tube is prolonged.

A closed gun tower for a lightning protection vehicle comprises a protective cover with a closed upper end, the protective cover is formed by folding bulletproof steel plates arranged on the periphery to form a cavity, observation windows are arranged on the bulletproof steel plates on the two sides of the protective cover, a shooting opening for a machine gun to stretch out is formed in the front end of the protective cover, and a receding hole for people to pass through is formed in a bottom plate at the lower end of the protective cover. A machine gun mounting seat is arranged on a bottom plate of the protective cover between the receding hole and the shooting opening, the bottom plate of the protective cover is connected with a vehicle body of the lightning protection vehicle through a rotary seat ring, so that the protective cover can integrally rotate by 360 degrees, a cavity of the protective cover is communicated with the interior of the lightning protection vehicle, and a shooter on the lightning protection vehicle can be protected in all directions. The head and the body of a shooter are prevented from being exposed, the casualty rate of the shooter is reduced, and the protection performance of the lightning protection vehicle is improved.

The invention discloses an inner ventilated motor, comprising a central shaft (7), a stator (2), a rotor (3), a left end cap (3) and a right end cap (4), wherein the yoke part of a stator iron core is provided with a penetrating stator ducting hole (8) in the axial direction, and the left end cap (3) and the right end cap (4) are provided with penetrating end cap ducting holes (9, 9') which are in butt joint with the stator ducting hole in the axial direction. The invention combines the advantages of sealed external cooling structure with opening direct cooling structure and has favorable repellency and cooling effect.