201results about How to "Exhaust" patented technology

The invention discloses a nano fog-dissipation multifunctional greenhouse agricultural film, and in particular relates to a three-layer co-extruded EVA (ethylene-vinyl acetate copolymer) long-life fog-dissipation environment-friendly multifunctional greenhouse film, belonging to the field of agricultural mulching films. The raw material formula of an outer layer comprises the following components in percentage by weight: 20-50% of linear low-density polyethylene (LLDPE), 20-50% of low-density polyethylene (LDPE), 10-20% of metallocene polyethylene (mPE) and 5-10% of double-prevention masterbatch; the raw material formula of a middle layer comprises the following components in percentage by weight: 30-40% of ethylene-vinyl acetate copolymer (EVA), 20-40% of linear low-density polyethylene (LLDPE), 20-40% of low-density polyethylene (LDPE) and 5-10% of three-prevention masterbatch; the raw material formula of an inner layer comprises the following components in percentage by weight: 30-40% of ethylene-vinyl acetate copolymer (EVA), 10-20% of linear low-density polyethylene (LLDPE), 20-50% of low-density polyethylene (LDPE) and 5-10% of three-prevention masterbatch; and the formulas of the outer layer, the middle layer and the inner layer are uniformly mixed respectively, master batches are prepared by using a double-head thread screw double-screw extruding machine, a three-layer film is formed through a co-extrusion die head and is extruded out to prepare the multifunctional agricultural greenhouse film. Every quality technical index of the film reaches or exceeds a national standard, and a small part of the indexes is more than 2 times better than the national standard, so that the film is excellent in antiaging performance and cannot generate fog drops, and the service life of the film reaches more than 3 years.

The invention discloses a modular reconfigurable crawler-type wall climbing robot, consisting of seven or more than seven absorption joints. Each absorption joint comprises a U-shaped frame, a bracket, a shell A, a shell B, a shaft, a shaft sleeve, a steering engine, an electromagnet, a sucker A and a sucker B; the sucker A is arranged on the shell A; the sucker B is arranged on the shell B; the steering engine and the shaft are arranged on the bracket; the shaft sleeve is arranged on the U-shaped frame; the shell A and the shell B are connected and form a cavity used for arranging the electromagnet; the U-shaped frame is connected with the shell A; and the bracket is connected with the shell B. The modular reconfigurable crawler-type wall climbing robot forms a serial crawler-type structure of the robot by the U-shaped frame of the former absorption joint and the output shaft and shaft of the steering engine of the latter absorption joint so as to lead the robot to have the feature of multiple degrees of freedom. The crawler-type robot which is formed by adopting connection of seven or more than seven absorption joints with identical structures enhances the motion flexibility, absorption reliability and obstacle-climbing capability of the robot.

The invention relates to the technical field of cooking appliances and in particular relates to a cooking appliance with an automatic exhaust function. The cooking appliance with the automatic exhaust function comprises a cover, an exhaust pipe arranged on the cover, a pressure-limiting valve which sleeves the exhaust port of the exhaust pipe and is used for sealing or unsealing the exhaust port, and a pressure-limiting valve driving device and a control device; the pressure-limiting valve driving device is capable of driving the pressure-limiting valve to move upwards and unseal the export port under the control of the control device. The cooking appliance with the automatic exhaust function is capable of stopping the pressure-limiting valve from sealing the exhaust port by match of the control device and the pressure-limiting valve driving device and thus realizing exhaust of the electric pressure cooker. Potential safety hazards caused by directly operating the pressure-limiting valve by the hands are avoided; meanwhile, the device for realizing automatic exhaust of the electric pressure cooker is simple in structure and convenient to operate.

An embodiment of the invention provides a glue overflow control method of a laminar structure. The glue overflow control method comprises the steps of providing at least two single-layer plates stacked in sequence, enabling half-solidified plates to be contained in the single-layer plates to be used for adhering every two adjacent single-layer plates; forming blocking glue layers surrounding side walls of the single-layer plates; performing press fit on a plurality of single-layer plates after the blocking glue layers are surrounded on the side walls of the single-layer plates to enable the half-solidified plates to adhere every two adjacent single-layer plates so as to form a multi-layer plate. Due to the blocking glue layers, the center and the periphery of the formed multi-layer plate are uniform in thickness. In press fit, the peripheries of the single-layer plates are of sealed or similarly sealed structures, overflow of melted glue can be effectively avoided, conditions of long glue edges are avoided, a next process step can be entered after press fit is finished, drilling is performed on the formed multi-layer plate, and a milling process is omitted.

The invention discloses a gypsum mold precise casting method and device for a magnesium alloy casting. A casting model and an air duct model which are made of the same material are adopted, and a foamed ceramic block is adopted for connection between the air duct model and the casting model; when a gypsum mold is manufactured, the casting model and the air duct model are placed in advance, and when the casting model is melted, the air duct is naturally formed; and magnesium alloy is poured and cast under the negative pressure condition, and after pouring is completed, pressurization solidification or solidification under the atmospheric condition is conducted. When the negative pressure condition is relieved or pressurization solidification is carried out, air passes through the air duct to cool the casting. The method can be used to change the temperature distribution of the casting mold, improve the cooling speed of the casting, facilitate realization of sequential solidification, and improve the quality of the casting.

The invention relates to an electrical spring-loaded parking brake for a vehicle, preferably for a utility vehicle, comprising a parking brake valve assembly; and at least one spring-loaded brake cylinder via a supply line and the parking brake valve arrangement is connectable to a compressed air source, which is acted upon in the released state of the parking brake device with pressure of the compressed air source on the parking brake valve arrangement and in the inserted state of the parking brake device on the parking brake valve assembly having a pressure sink is connected. The parking brake valve assembly is adapted to be controlled electro-pneumatically in a first mode for inserting the dissolved or pickled condition. The parking brake valve assembly further comprises a muscular force operating element and is further adapted to be dissolved or to insert the inserted state in a second mode using the muscular force operating element pneumatically controlled.

The invention relates to a rail train exhaust emission device. A shell body is of a sandwich structure formed by a metal plate structure in an inner layer and a metal plate structure in an outer layer. Hoisting legs are arranged on the periphery of the shell body, two air returning ports are formed in the middle of a metal plate in the inner layer, an air returning port partition plate is arranged in the middle of each air returning port to divide the corresponding air returning port into a left air port and a right air port, and sum up, the four air ports are formed. Each air port is provided with two exhaust outlets in the edge of the shell body, and a protection grating is arranged at the port end of each exhaust outlet. A plurality of small holes are formed in the periphery of the metal plate in the inner layer to form a pore-plate-shaped sound attenuation structure, and sound absorption and heat preservation materials are adhered to a gap of the sandwich structure. An air door fixing plate is arranged on the metal plate structure in the outer layer of each exhaust outlet in a riveting mode and is connected with an exhaust door through a hinge, wherein the exhaust door can rotate around a shaft of the hinge to be opened or closed. The exhaust emission device mechanically rotating the air door is arranged on the top of a carriage of a rail train, the exhaust emission is automatically carried out according to the air pressure inside and outside the carriage to prevent the exterior air from flowing backwards, and comfort of taking the rail train is improved.

The invention relates to a heat recovery air-conditioning water heater with a descaling function. The heat recovery air-conditioning water heater is composed of a heat pump water heater and an air conditioner, wherein an outdoor unit part and a heat exchange water tank (2) form the heat pump water heater, and the outdoor unit part and an indoor unit part form the air conditioner. A sprinkler head (28), a double spiral pipe (3) and a water injection slow flow device (22) are arranged inside the heat exchange water tank (2) from top to bottom. An inlet pipe head and an outlet pipe head of the double spiral pipe (3) extend out of the heat exchange water tank and are connected to an outdoor unit, and the other ends of both the inlet pipe head and the outlet pipe head of the double spiral pipe (3) are arranged inside the heat exchange water tank (2) and are not fixed. According to the heat recovery air-conditioning water heater, various running modes such as heat recovery water heating and heating air-conditioning can be achieved during a water heating and refrigeration air-conditioning mode, and hot water of over 50 DEG C can be generated. After the heat recovery air-conditioning water heater runs for a period of time, a scale layer on the surface of the double spiral pipe (3) can be removed automatically in a physical method.

The invention provides a method for exhaust of at least one part of a hydraulic brake system of a vehicle. The brake system comprises at least one brake circuit. The pressure of the brake circuit can be selectively increased through at least one motor propelled pump (14a,14b), especially an ESC pump. Under the condition that an exhaust valve is not opened, a given period for increased pressure can be applied to the partial brake system for exhaust through the pump (14a,14b).

The invention relates to a filter unit, specifically to a filter unit for separating magnetic impurities, particle impurities and gases from a fluid. The filter unit is especially applicable to heating pipelines or air-conditioning systems. A multifunctional filter unit comprises a main body, a water inlet cover, and a locking cap which is clamped on the water inlet cover and tightens up the mainbody. A blind hole cavity used for planting a magnetic strip is arranged at the lower end of the main body. A blowoff valve is arranged at the lateral side of the bottom of the cavity of the main body. A fixed through hole is arranged at the opposite side of the blowoff valve. The upper end of the water inlet cover is equipped with a first fixed hole, a second fixed hole and a third fixed hole. The first fixed hole and the third fixed hole are horizontally and coaxially arranged. In the cavity of the main body, one end of a bend channel is connected with the first fixed hole, and the other endof the bend channel is connected with a cylindrical filter screen. The filter unit of the invention can meet access requirement of pipelines from multi-directions and multi-angles. The filter unit ofthe invention has a simple structure, is flexible to adjust, has high adaptability, and has market competitiveness.

The invention relates to a membrane water treatment technology, and aims to provide a membrane device for a water purifier and an encapsulation method of the membrane device. The product comprises a membrane shell and a total membrane bundle which is cast in the membrane shell with a packaging adhesive, and consists of 4 to 16 side-by-side middle membrane bundles, wherein each middle membrane bundle has the following structure: small bundles are formed by mixing 20 to 200 side-by-side filter hollow fiber membrane filaments and a plurality of activated carbon fibers, and 1 to 5 equal-length exhaust hollow fiber membrane filaments are arranged between every 2 to 20 small bundles; after being folded in a U shape, the small bundles and the exhaust hollow fiber membrane filaments are wrapped by separating nets to form middle membrane bundles. The U-shaped encapsulation allows more membrane filaments to be exposed, the chance of splicing between the filament and the filament is minimized, and the practical effective membrane filtration area is increased. The microorganisms and other protein secondary pollutants produced by retention are adsorbed by activated carbon fibers, so that the service life of the membrane filaments is prolonged. The hydrophobic exhaust hollow fiber membrane filaments are encapsulated between the membrane filaments of the small bundles to well play an exhaust role.

The invention relates to an intervening and closuring partitioning catheter for a congenital heart disease ventricular septal defect surgery. The intervening and closuring partitioning catheter comprises a soft head and a catheter body. The catheter body comprises a catheter head end, a head-adjacent end and a catheter tail end. The front end of the head-adjacent end is connected to the catheter tail end, and the rear end of the head-adjacent end is bent reversely and preformed and is connected to the catheter tail end provided with an end hole. The end of the catheter head end is provided with the soft head. By the aid of the intervening and closuring partitioning catheter, establishment of a rail can be completed rapidly before being closured, time for the rail to be established and exposed in X rays can be shortened, and success rate of establishing the rail and entire surgery success rate of closuring the ventricular septal defect can be increased.

The invention discloses a novel automatic ventilate valve, comprising a valve body and a valve cover sealed and connected together to form a valve chamber. The bottom of the valve body is arranged with an air inlet. The valve cover is arranged with a horizontal air outlet. The valve chamber contains a floating ball whose upper part has a sliding channel with a connecting rod. The end of the connecting rod is arranged with a clamper whose end face is arranged with a groove. The groove is mounted with a pad ring. The horizontal air outlet is arranged with a handle whose head is arranged with a clamper, via one spring to engage the connecting rod. The handle is hollow to obtain a through hole whose outlet is communicated with the outer space. The inlet of the through hole is compacted with the pad ring of connecting rod. The invention can realize automatic ventilation via the air content of tube.

The invention discloses a concrete double-mold structure for the top surface of a building, and relates to the technical field of supporting molds for the top surfaces of buildings. The concrete double-mold structure for the top surface of the building comprises a lower assembly plate, an upper assembly plate and a ring beam supporting frame, wherein the lower assembly plate is formed by multiple lower template units which are assembled in the ring beam supporting frame; the upper assembly plate is formed by assembling multiple unit surface molds; the ring beam supporting frame is formed by fixing a rectangular bottom frame and four side templates perpendicularly surrounding the rectangular bottom frame; the left end part and the right end part of the rectangular bottom frame are both provided with long strip-shaped bonding grooves; the upper ends of the four corners of the ring beam supporting frame are all fixedly provided with fixing blocks; the upper ends of the upper assembly plate are all fixedly provided with regulating blocks; the regulating blocks are all perpendicularly and fixedly provided with tension screw rods; the regulating blocks are all connected with the fixing blocks on the corresponding same sides through the tension screw rods. An integral assembly structure is adopted for the concrete double-mold structure for the top surface of the building; the pouring flatness is high; the thickness is uniform; the construction difficulty can be decreased.

The invention discloses a harmless treatment mechanism of 3-chloropropyltrichlorosilane synthesis tail gas. The harmless treatment mechanism comprises a reaction chamber, a synthesis chamber, a distillation machine and a neutralization chamber. A treatment method of the 3-chloropropyltrichlorosilane synthesis tail gas comprises the following steps: dissolving and reacting non-condensable gases including trichlorosilane, silicon tetrachloride and propyltrichlorosilane in the 3-chloropropyltrichlorosilane synthesis tail gas by using excess absolute ethyl alcohol absorption liquid under a freezing condition with micro-positive pressure, wherein the non-condensable gases in the 3-chloropropyltrichlorosilane synthesis tail gas after being treated by the process only include hydrogen chloride and purified propylene; adding the non-condensable gases only including hydrogen chloride and purified propylene into the synthesis chamber and carrying out chloride-free treatment; carrying out alcoholysis and hydrolysis of an incompletely-esterified crude product which is the ethyl alcohol absorption liquid after absorbing the non-condensable gases including trichlorosilane, silicon tetrachlorideand propyltrichlorosilane to prepare a polysiloxane product with an additional value. The harmless treatment mechanism is novel in structure; the treatment method is environmentally friendly; the waste can be used and changed into wealth; the economic benefit is improved.

The invention discloses a basketball sports insole. The basketball sports insole comprises an insole body, wherein the insole body comprises an insole half sole, an insole waistline and an insole heelpiece in sequence from front end to rear end, one side of the front end of the insole half sole is provided with an oval arch part, and the other side of the front end of the insole half sole is provided with a wavy gyrate groove; the outer edge of the insole waistline warp upward, both sides of the insole waistline are provided with C-shaped grooves respectively, and the lower side of the insolewaistline is provided with a plant fiber arch supporting gasket; the insole body comprises a nano-bamboo charcoal fiber layer, a first polyurethane foamed cotton layer and a second polyurethane foamedcotton layer in sequence from top to bottom, the lower side, corresponding to insole half sole, of the first polyurethane foamed cotton layer is provided with a half sole shock pad, the shape of thehalf sole shock pad corresponds to the shape of the wavy gyrate groove, and the lower side, corresponding to the insole heelpiece, of the first polyurethane foamed cotton layer is provided with a heelpiece shock pad. The basketball sports insole has the advantages that the shock absorption and foot protection effects are strong, the skid resistance is good, the ankle injury can be prevented, the breathability is good, and the durability is high.