35results about How to "Resist entry" patented technology

The invention relates to a two-dimension fountain device, which comprises a lower dimension mechanism and an upper dimension mechanism. The lower dimension mechanism and the upper dimension mechanism respectively comprise a motor, a speed reducer, an output shaft, a three-way connector and an overflow support ring. The upper dimension mechanism also comprises a shower nozzle with an elbow pipe. In the lower dimension mechanism, an outlet at the lower end of the shell of the speed reducer is connected with a water-proof tube; the bottom part of the water-proof tube is provided with a cable input connector; the outer wall of the lower end of the output shaft in the water-proof tube is connected with a nut; the inner wall of the lower end of the output shaft in the water-proof tube is connected with a conducting ring seat; and the bottom part of the conducting ring seat is connected with an axial conducting ring inserted into the conducting ring seat. The first ports of the two three-way connectors and the outlet of the shell of the corresponding speed reducer as well as the corresponding input shaft are respectively and hermetically connected through two rubber seal rings, a skeleton seal ring, a seal stop bowl and a stainless steel snap ring. The third ports of the two three-way connectors and the corresponding overflow support ring are hermetically connected through a polytetrafluoroethylene ring. The two-dimension fountain device is good in sealing property under high-pressure water flow, can be used for enabling the shower nozzle to continuously and freely rotate for 360 degrees and can be widely applied to various fountain facilities.

The invention belongs to the technical field of the concrete and in particular relates to a low-chloride ion high-performance concrete. The low-chloride ion high-performance concrete is prepared from the following raw materials in parts by weight: 280-360 parts of cement containing 0.005% of chloride ions, 30-50 parts of silica fume containing 0.018% of chloride ions, 70-115 parts of coal ash containing 0.005% of chloride ions, 70-120 parts of mineral powder containing 0.007% of chloride ions, 155-165 parts of water, 660-775 parts of sand containing 0.007% of chloride ions, 976-1098 parts of broken stone containing 0.001% of chloride ions, and 7.50-9.65 parts of water reducing agent containing 0.03% of chloride ions. The total content of chloride ions in the concrete provided by the invention is controlled within the range from 0.015% to 0.018%; and the concrete has the advantages of high workability, high strength and high durability; besides, the strength of the concrete is in the range from C50 to C65.

The invention relates to a two-dimension fountain device, which comprises a lower dimension mechanism and an upper dimension mechanism. The lower dimension mechanism and the upper dimension mechanism respectively comprise a motor, a speed reducer, an output shaft, a three-way connector and an overflow support ring. The upper dimension mechanism also comprises a shower nozzle with an elbow pipe. In the lower dimension mechanism, an outlet at the lower end of the shell of the speed reducer is connected with a water-proof tube; the bottom part of the water-proof tube is provided with a cable input connector; the outer wall of the lower end of the output shaft in the water-proof tube is connected with a nut; the inner wall of the lower end of the output shaft in the water-proof tube is connected with a conducting ring seat; and the bottom part of the conducting ring seat is connected with an axial conducting ring inserted into the conducting ring seat. The first ports of the two three-way connectors and the outlet of the shell of the corresponding speed reducer as well as the corresponding input shaft are respectively and hermetically connected through two rubber seal rings, a skeleton seal ring, a seal stop bowl and a stainless steel snap ring. The third ports of the two three-way connectors and the corresponding overflow support ring are hermetically connected through a polytetrafluoroethylene ring. The two-dimension fountain device is good in sealing property under high-pressure water flow, can be used for enabling the shower nozzle to continuously and freely rotate for 360 degrees and can be widely applied to various fountain facilities.

The invention discloses an anti-infection hemodialysis tube, which relates to the field of medical equipment. The anti-infection hemodialysis tube of the present invention comprises a dialysis outer tube, a dialysis inner tube, and a dialysis membrane. Covering the outer wall of the dialysis inner tube; the dialysis inner tube has a U-shaped or V-shaped structure, and the openings are respectively a liquid inlet and a liquid outlet; the tubes of the dialysis outer tube and the dialysis inner tube are made of polyester Tetrafluoroethylene-polyurethane-nanosilver composite. In the present invention, the dialysis tube is directly placed in the blood vessel, without taking the blood out of the body and then performing hemodialysis through a machine. The nano-silver of the tube can effectively reduce the risk of infection in the hemodialysis process, and the chitosan quaternary ammonium salt in the dialysis membrane Make the composite membrane positively charged, form a positively charged barrier, effectively resist the bacteria in the dialysate from entering the blood, and further reduce the chance of blood infection during dialysis.

The invention belongs to the technical field of preparation, and discloses an ultralimit ferroalloy and a preparation method thereof. The ultralimit ferroalloy comprises a ferroalloy matrix, and a composite bonding layer, a composite ceramic layer, a reflecting layer, a reverse refraction layer, an insulating layer and a foam carbon layer are deposited on the surface of the ferroalloy matrix in sequence; the composite bonding layer comprises a bonding layer deposited on the surface of an aluminium alloy matrix, and a precious metal layer deposited on the surface of the binding layer; and the composite ceramic layer comprises a ceramic layer A and a ceramic layer B. According to the ultralimit ferroalloy, through deposition of a plurality of coatings on the surface of the ferroalloy matrix,the service temperature of the ultralimit ferroalloy can be increased to 100 DEGC-500 DEGC higher than the melting point of the original ferroalloy matrix, so that the application of the ferroalloy in ultralimit environment is achieved. The ultralimit ferroalloy provided by the invention has excellent high-temperature mechanical and chemical stability, and can be used under the condition of exceeding the melting point of the ferroalloy matrix; and the application range is expanded.

The invention relates to a small self-locking explosion-proof connector used for power cable connection. Electric sparks must not be generated at the cable disconnection connection, so as to achieve the purpose of preventing accidents. The explosion-proof connector includes a connector housing, a sealing device, a crimping device, and a connecting device, wherein the connector housing includes two parts, an upper housing and a lower housing with a self-locking bayonet, and the connecting device is installed inside the housing, including Cable feed-throughs and cable hold-downs. The invention is suitable for cable connection in inflammable and explosive places, and can be used in dangerous chemical production and storage areas, underground coal mines, dust and explosion-related places, and the like.

The invention provides a method for preventing and treating COVID-19 based on a light wave bath room and application thereof. According to the invention, an electric kettle is arranged in a conventional light wave bathroom; traditional Chinese medicines are put into the electric kettle for decocting; the inner temperature of the bathroom is controlled not to exceed 43 DEG C; after a user enters, gas containing medicine components enters the body of the user through respiratory tracts, feet and other parts of the body to play a role in preventing and treating diseases; the medicines can excitethe nervous system and stimulate the respiratory mucosa of the user, so the content of secretory immunoglobulin on the respiratory mucosa is increased, the immune system of the body is continuously stimulated so as to promote the generation of antibodies and blocks viruses from invading the body; and thus, infectious diseases such as common cold, influenza, atypical pneumonia and COVID-19 are prevented and treated. A traditional Chinese medicine composition in the invention contains components for promoting blood circulation to remove blood stasis and resisting cancers, so the traditional Chinese medicine composition has an effect of preventing and treating cardiovascular and cerebrovascular diseases and cancers. In addition, the traditional Chinese medicine composition has the effects ofinducing resuscitation, restoring consciousness, refreshing oneself and resisting fatigue.

The invention provides a desert control method. The desert control method comprises the steps that a desert is divided into a plurality of control areas; the control areas comprise the building area and the drip irrigation areas; the drip irrigation areas are arranged around the building area; a sand house is formed in the building area at a time; wells are drilled in the control areas, water pipes are installed, and thus drip irrigation can be conducted for 24 h in the drip irrigation areas; and a protecting and stabilizing layer is sprayed to the sand around the drip irrigation areas. According to the desert control method provided by the invention, the desert is controlled in a sectioned mode, the areas comprise the building area and the drip irrigation areas, the sand house in the building area is built through sand on the spot at a time, in this way, the construction period can be greatly shortened due to one-time formation, and manpower and material resources are saved; the sand house has the function of blocking and stabilizing sand; drip irrigation is conducted in the drip irrigation areas for 24 h, and growth requirements of crops can be met; and the protecting and stabilizing layer sprayed to the periphery of the drip irrigation areas can prevent sand from entering the drip irrigation areas, and the functions of blocking wind, stabilizing sand and protecting seedlings are achieved.

The invention discloses a self-tightening multi-layer supercritical extraction kettle. A water bath cylinder is arranged on a bracket, an outer cylinder is arranged in the water bath cylinder, an inner cylinder is arranged in the outer cylinder, an oil outlet pipe penetrating through the bracket is arranged at the bottom of the outer cylinder, an inner cylinder bottom cover is arranged at the bottom end of the inner cylinder, a filter layer is arranged between the inner cylinder bottom cover and a material, a filter unit is arranged at the top of the material, a check valve is arranged on thefilter unit, a filter layer is arranged at the lower end of the filter unit, filter layer seals are arranged between the filter layers and the inner cylinder, an air inlet pipe is arranged on the sidewall of the outer cylinder, the upper edge of the inner cylinder is machined to be in a zigzag shape to ensure the smooth entry of gas into the inner cylinder, an inner cylinder seal is arranged between the inner cylinder bottom cover and the inner bottom of the outer cylinder, a top cover is arranged at the top of the outer cylinder, and an outer cylinder seal is arranged between the top cover and the outer cylinder. The self-tightening multi-layer supercritical extraction kettle is simple in structure and convenient to operate, the inner cylinder does not need to be turned over, manpower and material resources are saved, and the self-tightening multi-layer supercritical extraction kettle can be popularized and applied to the field of supercritical extraction.

The invention discloses a movable sealing device and a use method thereof and belongs to the field of sealing pieces of mechanical devices. The movable sealing device comprises an outer ring body, an inner ring body and a rubber seal ring. The movable sealing device further comprises a limiting rod. The outer ring body and a bearing cover are fixed through bolts and can meet the demand for a large gap between a compression roller and a rotating shaft. The rubber seal ring is arranged in the inner ring body, so that the side, close to the rotating shaft, of the inner ring body is in tight contact with the rotating shaft. The two radial opposite outer sides of the inner ring body are of a plane structure. The limiting rod is arranged between the plane structure of the inner ring body and the outer ring body. When the rotating shaft and an end cover move, the inner ring body and the rubber seal ring in the inner ring body can horizontally move relative to the outer ring body, and then the seal function is achieved. The movable sealing device has the advantages of being simple in structure, reasonable in design, easy to manufacture and good in seal effect and is particularly suitable for seal between a movable piece and a fixed piece.

The invention belongs to a multi-layer extrusion type supercritical extraction kettle. A water bath cylinder is arranged on a bracket, an outer cylinder is arranged in the water bath cylinder, an inner cylinder is arranged in the outer cylinder, and an oil outlet pipe penetrating through the bracket is arranged at the bottom of the outer cylinder; an air inlet pipe is arranged at the upper end ofthe side wall of the outer cylinder; a top cover is arranged at the top of the outer cylinder, an outer cylinder seal is arranged between the top cover and the outer cylinder, the inner wall of the inner cylinder is smooth, an inner cylinder bottom cover is arranged at the bottom end of the inner cylinder, an inner cylinder seal is arranged on the contact surface of the inner cylinder bottom coverand the inner wall of the outer cylinder, the inner cylinder is filled with materials, a filter layer is arranged between the inner cylinder bottom cover and the material, the filter layer is arranged at the top of the material, and a thrust plate is arranged at the top of the filter layer; and the thrust plate is connected with the piston end of a hydraulic cylinder through a thrust spring unitpenetrating the top cover, and a top cover seal is arranged between the thrust spring unit and the top cover, and the hydraulic cylinder is connected with a hydraulic pump through an electromagnetic valve. The multi-layer extrusion type supercritical extraction kettle is simple in structure and easy to operate, the inner cylinder is not required to be overturned, manpower and material resources are saved, and the multi-layer extrusion type supercritical extraction kettle can be applied to the field of supercritical extraction.

The invention discloses a three-dimensional gear transverse / vertical inside-tightening direct-type casing pipe connection structure. The connection structure comprises a pipe body and a clamp. The clamp comprises a clamp strap and a fixing device for fixing the clamp strap. The fixing device comprises a worm and a housing, the clamp strap is arranged on the inner side of the pipe body, an open hole is formed in the position, in contact with the clamp strap, of the pipe body, the housing penetrates through the open hole in the pipe body to be fixed at one end of the clamp strap, the other end of the clamp strap penetrates into the pipe body or is exposed outside the pipe body by penetrating through the housing, the worm is arranged inside the housing and matched with the outer edge of the housing in a rotating mode, and a tooth groove of the clamp strap is meshed with external threads of the worm. Original point contact is changed to surface contact in the connection structure, the stress area is large, loosening does not easily occur, stability is good, fixing capacity is high, impact of external force can be resisted, concrete is prevented from entering the connection structure, construction can be carried out in the transverse and longitudinal directions, good practicability is achieved, the structure is simple, work efficiency is improved, and work cost is reduced.

The invention discloses a gene editing system. The gene editing system integrates the coding sequence of the membrane fusion inhibitory polypeptide into the safe harbor gene of the cell, so that the membrane fusion inhibitory peptide is expressed, but the safe harbor gene of the cell is not expressed. The invention knocks out the CCR5 gene, which is easy to operate and takes short time; the deletion of the CCR5 gene combined with the overexpression of the membrane fusion inhibitory peptide enables the cells to resist the R5 and X4 phagocytic HIV virus infection at the same time, and reduces the probability of virus mutation; membrane fusion inhibition The integration of the peptide coding sequence into the CCR5 gene locus enables the long-term stable expression of the membrane fusion inhibitor peptide.

The invention discloses a gene editing system. The coding sequence of a membrane fusion inhibiting polypeptide is integrated to a safe harbor gene of a cell in a site-specific manner, so that a membrane fusion inhibiting peptide is expressed while the safe harbor gene of the cell is not expressed. CCR5 genes are knocked out simply and conveniently in a short time. By CCR5 gene deletion and membrane fusion inhibiting peptide over-expression, the cell can simultaneously resist R5 and X4 phagocytic HIV (human immunodeficiency virus) infection, and virus mutation probability is reduced. The codingsequence of the membrane fusion inhibiting peptide is integrated to a CCR5 gene locus, and the membrane fusion inhibiting peptide can be stably expressed for a long time.

The invention relates to the technical field of intelligent devices, and discloses a sports wearable intelligent eye protection device. The device includes a protection frame having an arc shape, andeye part installation racks are fixedly installed in the middle of the inner arc surface of the protection frame. The middles of the eye part installation racks are provided with accommodating slots I. Eye protective pads are put on the top of the eye part installation racks. Two sides of each protective pad are provided with fixing blocks. The middle of each fixing block is threadedly connected to the top of the corresponding eye part installation rack through a fastening bolt. The tops of the front surfaces of the eye part installation racks are provided with accommodating slots II intersecting and running through the accommodating slots II. Through cooperation of strong light filter eyepieces and fixing shafts, the device can resist ultraviolet rays and wind-blown sand from entering eyes, thus overcoming a problem that strong light and wind-blown sand enter eyes and cause eye injuries, improving eye protection in a running process and improving the effect of running training.

The invention relates to vacuum system (1) comprising a vacuum cleaner (10) comprising a first housing (11) comprising an air inlet (12), an air outlet (13), a motor fan unit (14) for creating an airflow (F) from the air inlet (12) to the air outlet (13), a battery (15) for powering the motor fan unit (14), and a first unit (16) for charging the battery (15), and a charger (20) comprising a secondhousing (21) comprising a second unit (26) for changing the battery (15), wherein the first unit (16) is connected to the battery (15) and the second unit (26) is adapted to be connected to an external power source (22), and the first unit (16) and the second unit (26) are adapted for wireless power transfer from the second unit (26) to the first unit (16).

The invention discloses a gear reducer device with a dustproof function. The gear reducer device comprises a gear reducer body. The gear reducer body internally comprises an output shaft, a first dustproof mechanism, a second dustproof mechanism and an end cover. The first dustproof mechanism comprises a first sealing cover, a first clamping ring, a sealing sleeve and a first seal ring. The firstsealing cover is located on the upper face of the right end of the gear reducer body. The first clamping ring is located on the upper face of the first sealing cover. The sealing sleeve is located onthe upper face of the first clamping ring. The second dustproof mechanism comprises a fixing sleeve, a second seal ring, a spacer sleeve and a sleeve. The fixing sleeve and the second seal ring both sleeve a second shaft section. The spacer sleeve sleeves a third shaft section. The sleeve sleeves the second seal ring and the spacer sleeve. The end cover is in sealing connection to the lower face of the right end of the gear reducer body. The gear reducer device is good in dustproof function, convenient to mount and safer and more reliable to use.

The invention belongs to the technical field of construction materials and relates to a petroleum asphalt anti-stripping agent, a preparation method and a use method thereof. The petroleum asphalt anti-stripping agent comprises the following components in parts by weight: 20-35 parts of fatty acid iron salt, 5-10 parts of hydroxyapatite, 5-10 parts of quaternary ammonium salt and 40-80 parts of gasoline. By using the anti-stripping agent, the adhesion of asphalt acidic building stones is improved, the water damage resistant capability of an asphalt mixture is enhanced, the age resistance of the asphalt is improved, and the service life of road surfaces is prolonged.

The invention discloses a severe weather protection bag based on wind power protection for fruit and vegetable planting. The severe weather protection bag comprises a first limiting bag groove and a second limiting bag groove, wherein the back faces of the first limiting bag groove and the second limiting bag groove are rotationally connected through a supporting connecting shaft, and the upper ends and the lower ends of the front faces of the first limiting bag groove and the second limiting bag groove are fixedly connected through mounting clamping blocks; upper limiting arc frames are fixedly connected to the tops of the first limiting bag groove and the second limiting bag groove; corrugated supporting through grooves are fixedly connected to the tops of the upper limiting arc frames;arc-shaped bottom dragging grooves are fixedly connected to the bottoms of the first limiting bag groove and the second limiting bag groove, and arc-shaped grooves are formed in the middles of the bottoms of the arc-shaped bottom dragging grooves; and clamping top plates are fixedly connected to the tops of the corrugated supporting through grooves correspondingly. According to the severe weatherprotection bag based on wind power protection for fruit and vegetable planting, fruits are sleeved with protection bags, each protection bag is connected with a corresponding supporting rod, and the fruits are prevented from being disengaged from the supporting rod.

The invention discloses a using method of a movable sealing device and belongs to the field of mechanical device sealing pieces. The movable sealing device comprises an outer ring body, an inner ring body and a rubber sealing ring and further comprises a limiting rod; the outer ring body and a bearing cover are fixed through a bolt, and the requirement that a gap between a pressing roller and a rotating shaft is large can be met; the rubber sealing ring is arranged in the inner ring body so that the side, close to the rotating shaft, of the inner ring body can be in close contact with the rotating shaft; the two outer sides, opposite to each other in the radial direction, of the inner ring body are of a plane structure; the limiting rod is arranged between the plane structure of the inner ring body and the outer ring body; and when the rotating shaft and an end cover move, the inner ring body and the inner rubber sealing ring can horizontally move relative to the outer ring body so that the sealing function can be achieved. The movable sealing device has the beneficial effects of being simple in structure, reasonable in design, easy to manufacture and good in sealing effect and is especially suitable for sealing between a movable piece and a fixed piece.

The invention relates to the technical field of intelligent equipment, and discloses a sports wearable intelligent eye protection equipment, including a protective frame, the shape of the protective frame is arc-shaped, and the middle part of the inner arc surface of the protective frame is fixedly installed with an eye device frame, the middle part of the eye mounting frame is provided with an accommodating groove I, and an eye protection pad is placed on the top of the eye mounting frame, both sides of the eye protection pad are provided with fixing blocks, and the two fixing blocks The middle part is threadedly connected with the top of the eye mounting frame through fastening bolts, and the top of the front of the eye mounting frame is provided with accommodating groove II intersecting with accommodating groove I. This sports wearable smart eye protection device, through the cooperation of the strong light filter eyepiece and the fixed shaft, can better resist ultraviolet rays and wind and sand from entering the eyes, thereby solving the problem of eye injuries caused by strong light and wind and sand entering the eyes, and improving the running performance. The protection of the eyes during the process, while improving the effect of running training.

The invention discloses an American ginseng and echinacea capsule capable of improving immunity. The American ginseng and echinacea capsule is prepared from the following component extracts in percentage by weight: 60-75% of echinacea, 5-10% of black soya bean skin, 3-6% of astragalus polysaccharide, 1-3% of lycium barbarum polysaccharide, 3-8% of American ginseng, 1-4% of active peptide, 2-4% of mulberry, 1-3% of semen raphani, 1-3% of dogwood, 0.5-2% of poria cocos and 1-2.5% of glossy privet fruit. According to the invention, the American ginseng and echinacea capsule capable of improving immunity exclusively is prepared through adopting the echinacea as the main core material as well as the black soya bean skin and astragalus polysaccharide as the auxiliary materials; the American ginseng and echinacea capsule can enhance the resistance of an organism to bacteria and virus infection by activating the immune system of the organism, has the antibiotic function (the function is equivalent to 3-5 times of that of Western medicine antibiotics), and comprehensively improves the immunocompetence of the organism.

A multi-layer extrusion supercritical extraction kettle is provided with a water bath cylinder on a support, an outer cylinder is arranged in the water bath cylinder, an inner cylinder is arranged in the outer cylinder, and an oil outlet pipe penetrating the support is arranged at the bottom of the outer cylinder. The upper end of the side wall of the outer cylinder is provided with an air inlet pipe, the top of the outer cylinder is provided with a top cover, and the outer cylinder is sealed between the top cover and the outer cylinder, the inner wall of the inner cylinder is smooth, the bottom of the inner cylinder is provided with an inner cylinder bottom cover, and the inner cylinder There is an inner cylinder seal on the contact surface between the bottom cover and the inner wall of the outer cylinder, the inner cylinder is filled with materials, a filter layer is arranged between the bottom cover of the inner cylinder and the material, a filter layer is arranged on the top of the material, and a thrust plate is arranged on the top of the filter layer , the thrust plate is connected with the piston end of the hydraulic cylinder through the thrust spring unit penetrating the top cover, a top cover seal is arranged between the thrust spring unit and the top cover, and the hydraulic cylinder is connected with the hydraulic pump through a solenoid valve; the invention has a simple structure , Easy to operate, no need to turn over the inner cylinder, save manpower and material resources, and can be popularized and applied to the field of supercritical extraction.