79results about How to "Block the passage" patented technology

The invention discloses a waterproof material with polymer cement steel-base property, which is mixed by powder and liquid in weight proportion of 1: 0.8 to 1.2; the raw materials of the powder are cement, infiltrating crystallization masterbatch, methylcellulose, peach glue powder, quartz powder, plasticizer and pH-value regulator; the raw materials of liquid are acrylic acid waterproof emulsion, a dispersant, a preservative, an antioxidant, a film forming additive, water, a light calcium and styrene-butadier emulsion. The waterproof material with polymer cement steel-base property is finely bonded with concrete, is high in intensity and long in waterproof property, and is not easy to be etched chemically. Meanwhile, the waterproof material with polymer cement steel-base property has good compatibility when in use, which can be used synchronously with the batch feeder of concrete and cement; the construction base surface is not needed to be leveled and make a protection layer when the waterproof material with polymer cement steel-base property is in use, which is labor-saving and time-saving, and is an environmental-protection waterproof material with no toxic, no smell and no pollution.

The invention discloses an ultra-thin breast pad and a preparation method thereof and relates to the field of female lactation products. The ultra-thin breast pad is composed of a surface layer hydrophilic non-woven fabric, an intermediate absorbing layer and an impermeable bottom film. The surface layer hydrophilic non-woven fabric is a soft type double-component filament non-woven fabric composed of core layer PP / skin layer PE; and the intermediate absorbing layer is a hot melting non-woven fabric formed by blending core layer PP / skin layer PE and superabsorbent fibers. According to the method for preparing the ultra-thin breast pad, the surface layer hydrophilic non-woven fabric for preparing the ultra-thin breast pad is selected through a PE / PP double-component filament non-woven fabric soft bulkiness processing method, the superabsorbent fibers and the PE / PP double-component fibers are blended, the intermediate absorbing layer is prepared through a plain net hot air reinforcing method, so that the prepared ultra-thin breast pad has the advantages of being not subjected to fiber slip, being ultra-thin and breathable, having moisture breathability and being safe and healthy, and the problems that a breast pad not subjected to fiber slip is poor in comfort, unsafe, high in moisture content and high in material cost are solved.

The invention relates to the technical field of coatings and particularly discloses a modified white graphene composite antioxidation coating which comprises a liquid phase and an inorganic solid phase. The liquid phase comprises, by weight parts, 20-50 parts of matrix resin, 5-30 parts of silica sol, 5-30 parts of coupling agent and 20-60 parts of deionized water. The inorganic solid phase comprises 0.1-10 parts of modified white graphene, 5-20 parts of glass powder, 10-40 parts of spherical aluminum oxide and 5-30 parts of fumed silica. Compared with a conventional high-temperature antioxidation coating where boron nitride is added, the high-temperature antioxidation coating prepared from nanometer modified white graphene has a more excellent oxygen isolation capability effect, the number of layers of modified white graphene pieces is larger, the layers are combined more closely, and the oxygen isolation capability is higher. The antioxidation coating can bear high temperature of 1800 DEG C, is high in antioxidation capability and good in adhesion and weather resistance, the service life of a protected material is greatly prolonged, and the modified white graphene composite antioxidation coating has very high application value.

A two-sided liquid crystal display device comprises an outer shell, two liquid crystal display panels and a backlight module. The outer shell comprises a separation wall and two surrounding walls which respectively extend from the outer periphery of the separation wall in the opposite directions, the separation wall is made of lightproof materials, containing spaces are defined by the surrounding walls and the separation wall together, and openings communicated with the containing spaces are formed in the surrounding walls respectively. The liquid crystal display panels are arranged in the corresponding containing spaces and are adjacent to the corresponding openings. The backlight module comprises two optical film units and a light emitting unit, the optical film units are arranged in the corresponding containing spaces and located between the separation wall and the corresponding liquid crystal display panels, and the light emitting unit is arranged on the separation wall and used for providing light for the two optical film units.

The invention relates to a magnetic coin high-speed identification device, wherein the identification of the authenticity of coins comprises the following steps of: scanning magnetic parameters of the surface of a sample to be detected to acquire fluctuation signals of the magnetic parameters of the surface of the sample to be detected, and comparing the acquired fluctuation signals with the preset fluctuation signals of real coins to identify the authenticity of the sample. The device of the invention is provided with a coin centrifugally driving system, a control system, a coin surface magnetic signal acquiring system, a data analyzing system and a false coin eliminating system, wherein the coin centrifugally driving system sequences coins in a special coin channel and enables the coins to pass through the special coin channel at high speed; the control system controls coordinated actions of each system and human-computer interfaces; the coin surface magnetic signal acquiring system scans magnetic signal fluctuation of coin surfaces when the coins pass through the system; when the coins pass through a sensor at high speed, the magnetic sensor acquires three groups of fluctuation signals and converts the signals into digital signals, and the data analyzing system compares the scanning signals with the digital signals for analyzing; and the false coin eliminating system strikes false coins by using an electromagnetic valve according to control system signals, thereby eliminating the false coins.

The invention belongs to the field of coatings and provides a zinc-rich primer. The zinc-rich primer is composed of a component A and a component B, wherein the component A comprises the following components in parts by weight: 10-20 parts of epoxy resin, 60-80 parts of zinc powder, 5-20 parts of silicon carbide, 0.1-0.6 part of organic bentonite and 5-10 parts of allyl glycidyl ether; the component B comprises 5-30 parts of a polyamide curing agent or cashew nut shell oil by weight. According to the technical scheme, nano-grade fillers are added into an epoxy zinc-rich paint; the fillers can sufficiently fill up a gap formed between large spherical zinc grains so that a paint film of the epoxy zinc-rich paint is dense and the permeation of a corrosion medium is blocked, and furthermore, the anticorrosion property of the zinc-rich primer is greatly improved. Furthermore, the epoxy zinc-rich paint has no organic emissions and is an environment-friendly material.

The invention relates to an electret master batch as well as a preparation method and application thereof. The electret master batch is prepared from the following raw materials in percentage by mass: 50%-80% of polypropylene resin, 3%-5% of an antibacterial agent, 5%-15% of an electret and 0.05%-36.5% of an auxiliary agent. The antibacterial agent is added into the electret master batch, and the antibacterial agent and the electret in a specific ratio have a synergistic effect, so that the electret master batch has an antibacterial effect while having relatively high filtering efficiency and relatively low respiratory resistance. Particularly, air mixed with viruses can be effectively filtered, and the viruses are prevented from passing through.

The invention provides a precise metal mask plate. The precise metal mask plate comprises a supporting frame, a metal supporting net and at least one precise metal mask strip, wherein the metal supporting net and at least one precise metal mask strip are arranged on the supporting frame, the precise metal mask strip is located above the metal supporting net, the metal supporting net is of an integrated forming structure, at least one opening region is formed in the metal supporting net, a graphic region is arranged on the precise metal mask strip, the graphical region is located above the at least one opening region and covers at least one opening region, and in the evaporation process, a evaporation material sequentially passes through the opening region and the graphic region forms a preset evaporation pattern on the to-be-evaporated substrate. The metal supporting net integrally formed in the precise metal mask plate is used in the precise metal mask plate, the precise metal mask strips can be supported and the evaporation material can be blocked from passing through the interval between adjacent precise metal mask strips; and the shape of the opening region determines the shapeof the preset evaporation pattern, so that the shape of the pre-set evaporation pattern is determined according to the shape of the opening region, and through the arrangement of the opening region,the precise metal mask plate can be used in evaporation of a special-shaped screen.

The invention discloses a small anti-microbial dustproof cleaning-free fashionable mask which comprises a mask body, an outer decorative layer and hanging ropes. The mask body is made of multiple layers of nano-silver non-woven gauze and is in fit with the face of the human body in shape, the left side and the right side of the mask body are provided with the hanging ropes used for being fixed to ears of the human body, the outer surface of the mask body is coated with a layer of waterproof and dustproof breathable film, the outer surface of the waterproof and dustproof breathable film is coated with a layer of photocatalyst coating, the outer decorative layer is of a net structure, and the outer surface of the outer decorative layer is coated with fluorescence or reflective materials with different colors. The mask is fashionable, attractive, capable of avoiding face exposing, anti-microbial, dustproof and meanwhile capable of omitting troublesome of cleaning and disinfection.

The invention belongs to the technical field of papermaking and particularly relates to brand-new fresh-air paper and a preparation method thereof. The brand-new fresh-air paper is prepared from the following raw materials: sea-island fiber, bleached sulfate softwood pulp, bleached broad-leaf chemical wood pulp, a wet strength agent, an adhesive, a moisture-absorption additive and an aid. The brand-new fresh-air paper is good in moisture permeability and is capable of well replacing moisture; the paper is good in gas tightness and capable of blocking carbon dioxide, harmful gas and viruses; the paper is good in evenness and high in binding force, has good tear resistance and stiffness and is convenient to form; and the paper has sufficient ageing resistance and mold resistance, a formed product can be well used, and the secondary pollution is avoided.

The invention discloses an overlap joint device between water retaining curtains, and relates to a curtain overlapping process for solving the problems in overlapping and fixing between adjacent water retaining curtains and the problem of water leakage, and the process refers to that curtains and anchor blocks are distributed in the edge positions of adjacent curtains in a staggered manner. The overlap joint device provided by the invention is used for water retaining below large scale water surfaces. The overlap joint device is composed of two curtains and two anchor blocks, the curtains are connected with the anchor blocks through two cables respectively, the curtains adopt water-stopping structures, the cables are connected with the curtains, and one ends of the cables are fixed on the anchor blocks. Adjacent curtains are overlapped in a crossing manner in edge positions, and the overlap joint between the curtains is achieved through the fixing of the anchor blocks and the cables. After the mounting, under the effect of water flow, the two curtains cling to each other mutually, no clearance is left, water flow passing is stopped, and the purpose of treating low temperature water is achieved. According to the process, no component is required to be added on the curtains, the construction is convenient and quick, the operation is simple, impacts on a power station putting into running are small, and construction and maintenance costs are low.

The invention provides a semiconductor device and a forming method thereof. A gate structure is formed between a source region and a drain region in the substrate to form a transistor, an adjustment region is formed at the bottom of the gate structure; a potential barrier is formed in a channel by increasing the doping concentration of the channel of the transistor, so that leakage current is prevented from passing through the channel, the leakage current of the channel is further reduced, meanwhile, due to the fact that the potential barrier is not very high, the potential barrier can be crossed by applying a low voltage to a gate structure, and other electrical characteristics of a semiconductor device are basically not affected.

The invention provides a circuit board, comprising a substrate, a graphic conductive layer on the substrate, and a protective film located on the conductive layer and covering the substrate, wherein the protective film is a shading protective film, and the shading protective film is used for blocking light from passing through the circuit board. According to the circuit board and a camera module thereof, the protective film is a shading protective film which can block light from passing through the circuit board, thereby reducing the light transmittance of the circuit board, avoiding light leak of the camera module and improving the imaging quality of the camera module.

The invention relates to a glass burr reflowing pipe, belonging to the field of reflowing and condensation equipment. The glass burr reflowing pipe is composed of an inner pipe and an outer pipe, wherein through holes are formed in the upper and lower parts of the inner pipe; the upper part of the inner pipe is spherical and three opposite cold bubbles are formed on the lower part of the inner pipe when the lower part stretches on one plane from a wall of the reflowing pipe; the cold bubbles are communicated to form a burr shape; the outer pipe is in sleeving joint with the spherical upper part of the inner pipe; and an inclined water injection hole is formed in the upper part of the outer pipe. Based on the structure, water can be saved through air cooling when a sample is decomposed, and volatile matters and steam can be prevented from passing, so that the glass burr reflowing pipe has relatively good reflowing effect.

The invention discloses a method of a grouting waterproof curtain in leakage treatment of a rail transit underground platform. The leakage treatment of the rail transit underground platform is realized by adopting a superfine cement-modified water glass chemical grouting mode, wherein modified water glass takes a metal salt and an auxiliary agent as a modification material, the modulus of a water glass solution is 2.4-2.8, the concentration of the water glass solution is controlled in a range of 30-45Be', and the volume ratio of cement paste to the modified water glass solution is 1: 0.4-1: 0.6 when the modified water glass solution is 40Be'. According to the method of the grouting waterproof curtain in leakage treatment of the rail transit underground platform, core-pulling detection can be carried out on crack filling and compactness within a construction range; compactness detection can also be carried out by using ultrasonic waves; dynamic load grouting is feasible in technology, cracks do not appear on original reinforced portions of bridges, buildings or water leakage portions reinforced through grouting, water leakage does not occur any more, and the permanent bonding reinforcing effect is achieved from the structural level.

The invention relates to the technical field of sealing glues, and specifically discloses a modified nanometer composite polysulfide sealing glue for a fireproof glass. The modified nanometer composite polysulfide sealing glue comprises a base glue component and a vulcanization component according to a weight ratio of 100:5-20, wherein the base glue component comprises, by weight, 60-100 parts of a liquid state polysulfide rubber, 0.01-5 parts of modified nanometer powder, 10-50 parts of a reinforcing filler and 0.1-5 parts of a silane coupling agent, the vulcanization component comprises, by weight, 5-20 parts of a tackifier, 5-30 parts of a vulcanizing agent and 0.1-5 parts of a vulcanization accelerator, the number average molecular weight of the liquid state polysulfide rubber is 1000-4000, and the modified nanometer powder is one selected from modified white graphene, modified graphene and oxidized graphene. According to the present invention, the sealing property and the mechanical strength of the modified nanometer composite polysulfide sealing glue are increased while other properties are not affected, the process is simple and easy to operate, and the modified nanometer composite polysulfide sealing glue has high application value.

The invention discloses a visible anti-clogging device for a sewer. The anti-clogging device comprises a connecting pipe which can be connected with the inside of a sewer line, and an observation opening is formed in the lateral side of the connecting pipe; the visible anti-clogging device for the sewer further comprises an anti-clogging base which is in detachable connection with the observation opening in a matched mode, and an anti-clogging ball which can stretch into the connecting pipe, make water pass but block large wastes is rotationally connected with the anti-clogging base; an observation hole through which the anti-clogging ball can be observed is formed in the anti-clogging base, and a transparent cover is arranged on the observation opening, wherein the anti-clogging base can be covered with the transparent cover, and the transparent cover and the anti-clogging base can seal the observation opening together. When the large wastes inflow from the upper side of the connecting pipe, the anti-clogging ball can stop the large wastes from passing, and keep the large wastes above the anti-clogging ball, and the anti-clogging ball also can make long-strip-like wastes wound, so that the large wasters or the long-strip-like wastes are prevented from flowing into and clogging the sewer; the conditions of the anti-clogging ball in the connecting pipe can be seen through the transparent cover and the observation hole, the anti-clogging ball can be taken down in time to clean the wastes, and the water channel in the anti-clogging device is dredged in time.

The invention discloses an anti-efflorescence facing mortar composite layer which comprises a first facing mortar layer, a second facing mortar layer and a third drainage layer. The first layer mainlycomprises silicate cement, quartz sand, calcium carbonate, rubber powder and additives, the second layer is mainly prepared based on a composite cementitious material system (HAC-OPC-CS), and the third layer mainly comprises water repellents and silicone-acrylic emulsion. By selecting and blending the cement, strength is improved, migration of liquid water molecules and calcium ions is stopped bya layer-by-layer filtering mechanism, and anti-efflorescence, sturdy and durable effects are achieved. The anti-efflorescence mortar composite layer has good adhesive force with an external wall surface base layer and is sturdy, durable and waterproof, a wall surface is simple and grand in color by adding pigments such as ferric oxide, and the mortar composite layer is suitable for decorating external wall insulation systems such as villas, buildings and caves.

The invention relates to a high-energy low-consumption Al-H2O2 semi-fuel cell which comprises an ion exchange membrane clamped between an anode part and a cathode part. The cell is characterized in that the ion exchange membrane is an anion-exchange membrane. The anion-exchange membrane can selectively pass through anions, electric charge is conducted through OH- when the cell is discharged, and OH- generated by a cathode can be automatically transferred to an anode, so that the phenomenon that OH- is excessively accumulated in cathode liquor is avoided, decomposition ratios of H2O2 are reduced, use ratios of the H2O2 are effectively increased, the anode is supplemented by OH-, usage amount of NaOH in anode liquor is reduced, additive amount of electrolyte is reduced, specific energy of the cell is improved, cations are blocked from passing, Al<3+> is prevented from being transferred to the cathode, deformation of Al(OH)3 sediment is prevented, cell performances are improved, and service life of the ion exchange membrane is prolonged.

The invention relates to a water net centrifugal purification device, which consists of a centrifugal wind wheel, star-shaped fish scale net folded plates, atomizing nozzles and a noise reduction diversion guiding device. The star-shaped fish scale net folded plates are uniformly distributed at the periphery of the centrifugal wind wheel, and fish scale net plates are fish scale plates with meshesopening by certain angle along the airflow direction. The air inlet is equipped with nozzles jetting water mist to the air inlet oil smoke airflow. Oil smoke airflow and water mist droplets are sucked into the centrifugal wind wheel to form vortex airflow, water mist droplets collide with impeller blades and the fish scale net plates to generate two atomization, the mist droplets and oil smoke soot are fully mixed and collided, particulate matters in the airflow have large density, inertia and turning radius, cannot make a turn quickly to enter fish scale net meshes, are sticked to the fish scale net plates and flow down with water foams into a circulating water tank. Because of the dual purification effect of water mist capture and inertial separation, the oil smoke purification efficiency is improved and water loss is reduced. The noise reduction diversion guiding device improves the circulation efficiency and reduces the noise, and is convenient for indoor application.

The invention discloses a turbine and a turbine blade tip clearance sealing structure. The turbine comprises a casing and a moving blade, wherein the moving blade comprises a blade tip, and a blade shroud is arranged on the blade tip; the turbine blade tip clearance sealing structure comprises multiple first grate teeth and multiple second grate teeth, the multiple grate teeth are mutually spacedand arranged on the first wall surface, facing the inner wall of the casing, of the blade shroud; and the multiple second grate teeth are mutually spaced and arranged on the inner wall of the casing,and the multiple first grate teeth and the multiple second grate teeth are opposite and arranged in a staggered manner. According to the turbine blade tip clearance sealing structure of the embodiment, the grate teeth are arranged on two sides of the blade shroud to tightly seal the mechanism, leakage of fluid in the blade shroud is reduced maximally, the flowing state of the leaking fluid in theblade shroud is adjusted by proper tooth pitch and tooth thickness, flowing loss of the leaking fluid in the blade shroud and blending loss of the leaking fluid after flowing out of the blade shroud and mainstream fluid are reduced, and therefore, aerodynamic performance of the turbine is improved.

The invention discloses a catering oil-water separating device and belongs to the field of catering equipment. The catering oil-water separating device sequentially comprises a first oil removing areaand a second oil removing area from left to right, wherein a water inlet is formed in the upper part of the left side of the first oil removing area; a water outlet is formed in the upper part of theright wall of the second oil removing area; a first retaining wall is arranged between the first oil removing area and the second oil removing area; an opening is formed in the lower part of the first retaining wall; a fiber board filtering material is arranged on the opening and is a polyester fiber board of which the surface is subjected to polypropylene grafted modification treatment; one surface, subjected to grafted modification treatment, of the polyester fiber board, is arranged on one side of the first oil removing area. The catering oil-water separating device disclosed by the invention has the beneficial effects that one surface, subjected to grafted modification treatment, of the polyester fiber board, is arranged on one side of the first oil removing area, so that after an oil-absorbing group absorbs oil, a layer of thin film can be formed on the surface of the fiber board to stop grease from passing.

The invention discloses an electrodialysis apparatus. The electrodialysis apparatus comprises a plurality of individual filter channels, wherein each individual filter channel comprises a cathode plate and an anode plate which are arranged oppositely to each other, and a first cation exchange membrane and a first anion exchange membrane which are arranged between the cathode plate and the anode plate. Since the surface of the anode plate is provided with the cation exchange membrane, the passing of anions can be blocked, and the corrosion of the anode plate is prevented; and since the surface of the cathode plate is provided with the anion exchange membrane, the passing of cations can be blocked, and the corrosion of the cathode plate is prevented.

The invention relates to a disinfection operation station and a disinfection access control system, and the disinfection operation station comprises a standing disinfection device which is used for storing a disinfection agent and carrying out sole disinfection operation on a sole of a person standing on the standing disinfection device by using the disinfection agent; the storage disinfection cabinet is opened when being started, so that a person can place articles, and the articles are disinfected after the storage disinfection cabinet is closed; the hand washing device is used for providing a hand washing medium for people to carry out hand washing and disinfection operation when being started; and the control circuit is used for sequentially controlling the storage disinfection cabinet and the hand washing device to be started when the personnel performs the sole disinfection operation, so as to guide the personnel to perform the article disinfection operation and the hand washing disinfection operation. When a person stands at the standing disinfection device to carry out sole disinfection operation, the control circuit correspondingly controls to start the storage disinfection cabinet and the hand washing device in sequence so as to guide the person to carry out article disinfection operation and hand washing disinfection operation, and the problem that the person forgets to disinfect soles or articles is avoided.

The invention discloses a touch display device, which comprises a display panel, a transparent cover plate and an isolation strip, wherein the display panel comprises a frame and a light source region, and the display panel is used for emitting an optical signal; the transparent cover plate is arranged above a light emitting surface of the display panel, and a gap exists between the transparent cover plate and the display panel; the isolation strip is an isolation strip with a hole, and is used for blocking dust particles in the air from passing through; and the isolation strip is arranged along the frame, the isolation strip is arranged in the gap, and the isolation strip, the display panel and the transparent cover plate define a cavity without an opening. According to the touch displaydevice, free circulation of air on two sides of the isolation strip is realized, and the dust particles in the air are isolated from entering between the display panel and the transparent cover plate,so that too large temperature difference cannot be generated on the two sides of the isolation strip, namely water mist is prevented. The invention further provides display equipment with the beneficial effects.

The invention belongs to the technical field of food processing, and particularly relates to a gate type baking and subpackaging mechanism. The gate type baking and subpackaging mechanism comprises a baking portion and a subpackaging portion, wherein the baking portion comprises an oven, a grill and a pushing claw, a feeding door is arranged on one side face of the oven, a discharge door is arranged on the front side of the oven, the grill is arranged at the interior of the oven, and the pushing claw is arranged at the back of the oven; the subpackaging portion comprises a feeding sliding groove transversely arranged, a swingable separating plate and separating sliding grooves, the tail end of the feeding sliding groove is connected to the two separating sliding grooves, and the separating plate for swinging to open and close the separating sliding grooves is arranged at the joint of the two separating sliding grooves. The baking portion is utilized for baking cakes, and the cakes are directly fallen into the subpackaging portion for direct separation after the baking is completed, thus two working procedures of baking and subpackaging can be integrated on one machine tool. Two mechanisms are prevented from existing independently in an existing structure.

The invention relates to a heavy metal electric welding protective lens with uvioresistant and anti-infrared function used on a welding mask, which is prepared by the following material according to parts by weight: 60-80 parts of quartz sand, 6-10 parts of ferric oxide, 1-4 parts of cerium oxide, 0.5-2 parts of cobalt oxide, 8-10 parts of calcined soda, 3-5 parts of calcite, 1-2 parts of nickel oxide and 2-5 parts of manganese powder, and has the advantages of uvioresistant and anti-infrared. The invention can resist the infrared, the ultraviolet radiation and the harmful light, and visible light can be passed, simultaneously, the visible light of a welding object filtered by the lens of the invention can be comfortably observed by welder, the ultraviolet transmittance of the invention is between 313nm to 365nm, and the infrared transmittance is between 780nm to 1300nm or 1300nm to 2000nm, thus conforming with the requirement of national standard.

The invention provides a vibrating diaphragm which comprises a vibrating diaphragm main body, the vibrating diaphragm main body comprises a fixing part on the outer side, a folding ring part which isarranged on the inner ring side of the fixing part in a protruding mode and can generate elastic deformation and an inner side part located on the inner ring side of the folding ring part, and the vibrating diaphragm main body is made of a waterproof breathable material with waterproof breathable micropores. The invention further provides a loudspeaker with the vibrating diaphragm. According to the technical scheme of the invention, the vibrating diaphragm main body is made of the waterproof breathable material with the waterproof breathable micropores so that the vibrating diaphragm body is provided with the micropores, the size of the micropores is between that of water molecules and that of air molecules, so that the air molecules can smoothly pass through the micropores, meanwhile, thewater molecules are effectively prevented from passing through the micropores, the vibrating diaphragm has waterproof and breathable functions, internal and external air pressures of the loudspeakerare balanced, and the waterproof performance of the loudspeaker can be improved. Meanwhile, the vibrating diaphragm forms waterproof breathable micropores, thereby avoiding the forming of larger air vents and the additional pasting of a waterproof net, and guaranteeing the sound production performance of the diaphragm.