31results about How to "Easy to achieve sealing" patented technology

The invention relates to an automatic tea fermentation system. A passage for enabling a fertilization box to pass through is formed in a fermentation tunnel; a pushing device is arranged at one end of the fermentation tunnel; a discharge device is arranged at the other end of the fermentation tunnel; and a water mist spray pipe and a heating device are arranged in the fermentation tunnel. A fermentation method employing the above-mentioned automatic tea fermentation systems comprises the steps of: loading fresh leaves into fermentation tanks; pushing the fermentation tanks into a fermentation tunnel in turn by a pusher; controlling oxygen content, temperature and humidity in the fermentation process; after fermentation, pushing the fermentation tanks to unloading equipment by the pusher, so as to realize automatic tea fermentation. The invention employs a structure containing the fermentation tunnel located in the fermentation chamber cooperated with the pusher, and reduces the volume of the fermentation space, thereby reducing energy consumption radically and reducing the chance of contamination by bacteria as well.

The invention provides an introspection magnetic inertial navigation monitoring system for a dam. A flexible detecting tube is embedded in the dam body; a monitoring device walking along the flexible detecting tube is arranged in the flexible detecting tube; a triaxial magnetic flux door sensor and an accelerometer are arranged in the monitoring device; and a calculation chip is arranged in the monitoring device. By means of the combination of the flexible detecting tube and the monitoring device with the triaxial magnetic flux door sensor and the accelerometer, the introspection magnetic inertial navigation monitoring system for a dam can improve the monitoring accuracy and overcome the problem that an existing fiber gyroscope is great in the accumulated error and the zero drift error is difficult to compensate, and takes an almost changeless geomagnetic sensing line as the measuring reference and improves the data accuracy obtained by the whole monitoring device. By coordinating with the high-accuracy accelerometer and other devices, the introspection magnetic inertial navigation monitoring system for a dam can further improve the measuring accuracy of the data and greatly reduce the engineering cost. For the introspection magnetic inertial navigation monitoring system for a dam, the accuracy for flexibility deformation of the flexible detecting tube can reach 1 millimeter.

The invention relates to the technical field of vacuum metallurgy equipment, in particular to a vacuum reduction furnace for electromagnetic induction heating melting reduction of magnesium metal. The vacuum reduction furnace comprises a furnace body (1), a hopper (4) made of a hard insulating material is arranged in the furnace body (1), and a center channel penetrating the bottom face of the hopper (4) is arranged in the center position of the hopper (4); one or more annular grooves (7) are concentrically arranged in the bottom face of the hopper (4), and iron in the solid state or the molten state is arranged in the grooves (7); a rectangular iron core (6) is arranged in the furnace body (1), one side of the rectangular iron core (6) penetrates the center channel of the hopper (4), and the other side of the rectangular iron core (6) is wound with a primary side coil (9); and the leading-out end of a copper winding of the primary side coil (9) is led out of the furnace through an insulation sealing device on the furnace body (1) so as to be connected with a power device. The vacuum reduction furnace is reasonable in design, distribution of a temperature field of the reduction furnace can be adjusted, and the heat transferring efficiency is high; and the vacuum reduction furnace is used for thermal reduction production of high-vapor-pressure metal such as magnesium, lithium, strontium and calcium and the like.

The invention provides a flat and bent hot-tube type integrated cooler for electronic components. It directly contacts the electronic components by a fin-free part of the flat tube, the inner surface of the fin-free part is completely dipped by a phase-variable heat-conducting liquid working medium, the heat emitted from the electronic components is completely transmitted to the liquid working medium in the direction of the wall thickness of the flat tube so as to evaporate the working medium, the gas working medium condenses in the flat tube, the condensed liquid working medium flows back to a heating part, and as the working medium condenses in the flat tube, the heat is transmitted to the fins. It is applied to cooling electronic components with a high heat-flow density, like CPUs, high power rectifier tubes, etc. it can be placed, horizontally and laterally and as it is placed laterally, the heat conducting ability does not change. In addition, it has another advantage of shorter seal welding line, thus convenient to implement high-quality sealing of hot tubes and increase product yield.

The invention relates to the technical field of hydraulic pressure, in particular to a load maintaining sheet type multi-way valve which comprises a valve body, a valve element, a one-way valve hole, at least one pilot oil cavity, a middle body and an on-off mechanism. A valve element hole, working oil cavities, an oil inlet cavity and an oil return cavity are formed in the valve body, the working oil cavities, the oil inlet cavity and the oil return cavity are communicated with the valve element hole, the oil inlet cavity is connected with an oil inlet, and the oil return cavity is connected with an oil return opening; the valve element is arranged in the valve element hole and used for oil way conversion; the one-way valve hole is communicated with one working oil cavity, a one-way valve is arranged in the one-way valve hole, and a cavity communicated with the corresponding working oil cavity is formed in the one-way valve; the middle body is provided with a pilot channel and a middle channel, the pilot channel is used for communicating the pilot oil cavity with the valve element hole to push the valve element to move, and the middle channel is communicated with a cavity body of the one-way valve; and the on-off mechanism is used for communicating or disconnecting the middle channel and the pilot oil cavity. According to the load maintaining sheet type multi-way valve, oil in the cavity body of the one-way valve communicates with the middle channel at the end of the valve element hole, so that sealing between the cavity body of the one-way valve and the valve element hole is conveniently achieved.

The invention relates to the medical field, specifically a medical plastic recycling device, including a cleaning structure, a cover plate, a casing, a limiting structure, a sharps storage structure, a guiding structure and a storage structure; the inside of the casing is arranged in two A storage structure for storing garbage and a sharps storage structure for storing sharps; the top of the casing is provided with a guiding structure for guiding the cover plate and a limiting structure for limiting the guiding structure; the side wall of the casing is provided with a Liquid cleaning structure. The inside of the shell of the present invention is provided with two storage structures for classifying and storing medical waste, which facilitates the treatment of medical waste and avoids the secondary treatment of waste. The storage of sharp tools avoids the damage of the operator when disposing of garbage. The use of the cleaning structure facilitates the filtration of medical waste liquid in medical waste, facilitates the treatment of medical waste liquid, and prevents medical waste liquid from polluting the environment.

The invention relates to the technical field of vacuum metallurgy equipment, in particular to a vacuum reduction furnace for electromagnetic induction heating melting reduction of magnesium metal. The vacuum reduction furnace comprises a furnace body (1), a hopper (4) made of a hard insulating material is arranged in the furnace body (1), and a center channel penetrating the bottom face of the hopper (4) is arranged in the center position of the hopper (4); one or more annular grooves (7) are concentrically arranged in the bottom face of the hopper (4), and iron in the solid state or the molten state is arranged in the grooves (7); a rectangular iron core (6) is arranged in the furnace body (1), one side of the rectangular iron core (6) penetrates the center channel of the hopper (4), and the other side of the rectangular iron core (6) is wound with a primary side coil (9); and the leading-out end of a copper winding of the primary side coil (9) is led out of the furnace through an insulation sealing device on the furnace body (1) so as to be connected with a power device. The vacuum reduction furnace is reasonable in design, distribution of a temperature field of the reduction furnace can be adjusted, and the heat transferring efficiency is high; and the vacuum reduction furnace is used for thermal reduction production of high-vapor-pressure metal such as magnesium, lithium, strontium and calcium and the like.

The invention provides a magnetic and inertial navigation monitoring system inside a dam. A flexible detection tube is embedded in the dam body, a monitoring device that walks along the flexible detection tube is installed in the flexible detection tube, and a three-axis magnetic sensor is installed in the monitoring device. The door sensor and the accelerometer are also provided with a solution chip in the monitoring device. By using a combination of a flexible detection tube and a monitoring device with a three-axis fluxgate sensor and an accelerometer, the monitoring accuracy can be improved, and the problems of the existing optical fiber gyroscopes with large cumulative errors and difficult compensation of zero drift errors can be overcome, and almost fixed The constant geomagnetic induction line is used as the measurement reference to improve the accuracy of the data obtained by the entire monitoring device. Cooperating with high-precision accelerometers and other equipment can further improve the measurement accuracy of data and greatly reduce engineering costs. The accuracy of the invention for the deflection deformation of the flexible detection tube can reach 1 mm.

The invention discloses a memory alloy driving device by adoption of gas isolating cold and hot working media. The memory driving device by adoption of the gas isolating the cold and hot working media comprises a moving structure, a driving structure and a cold-hot water and gas circulating control structure, wherein the moving structure is composed of blades, connecting rods, hinge pins and supporting frame firming pieces. The driving structure of each blade is composed of memory alloy springs, air cylinders, two fixing round plates, pressure springs and push rods. Three holes of the front section fixing round plate are connected with ends of the three air cylinders in a threaded mode, and three square holes of the rear section fixing round plate are connected with the three supporting frame firming pieces in a interference fitted mode. The cold-hot water and gas circulating control structure is composed of a cold water pump, a hot water pump, a cavity, an electronic control unit box, an air pump, a two-position and three-way electromagnetic directional valve, a vent valve, an enter stroke hose, a return stroke hose, various connecting pieces and the like. The memory alloy driving device by adoption of the gas isolating the cold and hot working media has the characteristics of being low in noise, less in environmental influence, low in energy consumption, high in theoretical thermal efficiency and low in cost, and is mainly applied to the field of water transportation tools.

The invention discloses a stacked filter. The stacked filter comprises a filter body, an oil way cover plate and a filter element; the filter body is installed between a valve station and a plate type hydraulic valve, the oil way cover plate is detachably installed on the filter body, the filter body is provided with a filter element cavity, the filter element is arranged in the filter element cavity, a main oil passage is arranged in the filter body and is communicated with the filter element cavity, and a medium entering the main oil passage is led to the outer side of the filter element in the filter element cavity; a filter oil inlet is formed in one side surface of the filter body, a filter oil outlet is formed in the other side surface of the filter body, the filter oil inlet is communicated with the main oil passage, and the filter oil outlet is communicated with the filter element cavity through an oil way in the oil way cover plate. The stacked filter locally filters a control valve with higher precision requirements to form local protection under the condition that the filtering precision of the main oil passage is not high and the filtering reliability is not enough, so that the service lives of equipment and a system are prolonged.

The invention discloses an internal-pressure forming method for a magnetic medium-assisted pipe. The internal-pressure forming method for the magnetic medium-assisted pipe is an internal-pressure forming method for a medium of a pipe, and used for solving the series problems of difficult sealing, the need of subsequent cleaning, poor force transfer effect and the like of traditional mediums during internal-pressure forming for a pipe. The stress state, the deformational behavior and the coordination sequence of each part during internal-pressure forming for a pipe are changed through adjusting the rheological property of a magnetorheological fluid under the action of a controllable magnetic field, and quantitative controllable loading based on on-demand distribution is realized. The method comprises the following steps: fully filling a pipe blank (4) with the prepared magnetorheological fluid (5); arranging the pipe blank (4) in a cavity formed by an upper punch pin (1), a concave die (3) and a lower punch pin (6); changing the rheological property of the magnetorheological fluid (5) through the action of the magnetic field to realize different force transfer effects; the upper punch pin (1) moves downwards to load and transfers an action force through the magnetorheological fluid (5), so that the needed parts of the pipe generate deformation; and the magnetic field and the upper punch pin (1) are removed after forming, and the obtained workpiece is taken out. The method disclosed by the invention is used for internal-pressure forming for a medium of a pipe.

The invention relates to a diffusion connection mold and a diffusion connection method, belonging to the technical field of precision sheet metal processing, and solves the current problems of high-temperature sagging deformation, low welding rate and low efficiency of large-area diffusion connection of multi-layer boards. Diffusion connection mold includes an upper mold and a lower mold matched with the upper mold. The upper mold is provided with a first sealing stem, an air cavity and an air channel for filling the air cavity with high-pressure flexible gas; the lower mold is a flat plate structure. There is a second sealing stem and a vacuum airway. The diffusion bonding method is as follows: making large-area diffusion bonding blanks for multilayer boards; performing surface treatment on large-area diffusion bonding blanks for multilayer boards; making release agent patterns for large-area diffusion bonding blanks for multilayer boards; assembling large-area diffusion bonding blanks for multilayer boards , peripheral fusion welding and vacuum tube welding to obtain multilayer board seals; diffusion bonded multilayer board seals. The invention can be used for large-area diffusion connection of multilayer boards.

The invention belongs to the technical field of remote operation and relates to a separable master-slave manipulator stretching movement transmission system. The separable master-slave manipulator stretching movement transmission system comprises a driving transmission chain, a through-wall transmission shaft and a driven transmission chain which are connected sequentially; the driving transmission chain comprises a driving transmission chain inner pipe, a first steel belt, a second steel belt, a driving transmission chain fixed belt wheel and a driving transmission chain bevel gear drum; thedriven transmission chain comprises a sleeve, a third steel belt, a fourth steel belt, a driven transmission chain fixed belt wheel, moving belt wheels, a driven transmission chain bevel gear drum, agear component, a middle pipe through-wall transmission shaft and a motor; and the sleeve is composed of a driven transmission chain inner pipe and a driven transmission chain middle pipe which are independent of each other and relative to each other. By utilizing the transmission system provided by the invention, sealing of a through-wall pipe can be conveniently realized without influencing movement transmission of manipulators on the premise of guaranteeing the personal safety of an operator.

The invention relates to the field of ventilating equipment, in particular to ventilating and energy-saving equipment for a green building. The ventilating and energy-saving equipment comprises a windspeed adjusting structure, a supporting frame, a filtering structure, an adjusting rod, a draught fan, and a flow guiding structure. The filtering structure used for filtering raindrops and dust in the air is arranged at the end, with a storing space, of the rectangular supporting frame. The supporting frame is internally provided with the draught fan used for promoting air circulation. The supporting frame is internally provided with the flow guiding structure used for ventilating and flow guiding. The supporting frame is provided with the wind speed adjusting structure used for adjusting the ventilation and air exchange amount. The wind speed adjusting structure is provided with the adjusting rod used for adjusting the distance between the flow guiding structure and the wind speed adjusting structure. The filtering structure is fixed to the supporting frame by bolts and is matched with the draught fan to use, and therefore the direction of the air flow changes when the air flow passes through the filtering structure. The raindrops and large dust particles in the air are filtered and stored, and therefore the performance of ventilating and air exchanging is greatly improved, andthe ventilating and energy-saving equipment can be applied to buildings of different types.

The application belongs to the field of radio frequency microwave technology, and in particular relates to a power divider and combiner with high isolation. The power divider and combiner includes a waveguide cavity, including a first end and a second end opposite to each other. The first end is set as a waveguide port for power input or output, and the second end is closed by a conductive shell to form a short waveguide. On the road surface, there is a window above the waveguide cavity adjacent to the short-circuit surface of the waveguide, through which the waveguide cavity is coupled with the microstrip circuit; the microstrip circuit includes a substrate, and two microstrip circuits are arranged on the upper end surface of the substrate. line, the lower end surface of the substrate includes a joint portion used to cover the window of the waveguide cavity; the waveguide filling medium is filled at the window of the waveguide cavity, and is used to connect the substrate of the microstrip circuit with the waveguide ridges of the waveguide cavity. The structure directly realizes power distribution / combination while the waveguide microstrip is converted, and also realizes good isolation, and the structure is more compact, which is beneficial to the miniaturization design of the system.