11results about How to "Reduce air" patented technology

The utility model discloses a heat sealing assembly and an aluminum plastic packaging bag processing device, and relates to the technical field of packaging bag processing. The device comprises a shell, one side of the shell is open, a sliding plate is connected to the inner wall of the bottom of the shell in a sliding mode, a sealing plate is fixedly connected to the side, away from the shell, of the sliding plate, and a sealing gasket is bonded to the open side of the shell and used in cooperation with the sealing plate; and the vacuumizing mechanism is arranged at the bottom of the shell and used for reducing the pressure in the shell. According to the packaging bag heat sealing device, when heat sealing is conducted on a packaging bag, air in the shell can be extracted, negative pressure is formed in the shell, air in the packaging bag is reduced, the problem that the packaging bag expands due to heat change after hot pressing is avoided, meanwhile, the end of the packaging bag can be limited, the heat sealing quality is improved, the sliding frame can move, and the sliding frame is convenient to use. And packaging bags with different widths can be subjected to heat sealing, and the use flexibility is improved.

The application discloses a modular quick-change module of an OMR vacuum laminating machine and a laminating device, relates to the field of vacuum laminating machines, and comprises a rack, a linear module is mounted on the inner side of the rack, an installation plate is fixedly connected to the top of the linear module, a workpiece is placed on the inner side of the installation plate, a hydraulic cylinder is mounted on the inner side of the rack, and a top seat is fixedly connected to the output end of the hydraulic cylinder; the cooperation of the rectangular plate and other parts enables the second nozzle to start from the sealed end, gradually advance to the middle area and the area close to the other end, and apply uniform pressure; this process not only continuously discharges air to the end, but also assists the close lamination of the film and the workpiece surface through uniform air flow pressure, ensures that the back glue of each area can fully contact the workpiece, reduces the air bubble hidden danger caused by local lamination from the root, and realizes the dead-angle-free air exhaust from one end of the workpiece to the other end, and further reduces the overall air bubble generation rate.

This utility model relates to dishwashers, specifically providing a water cup assembly and a dishwasher, aiming to solve the problem of insufficient water intake in existing dishwasher water pump inlet structures, which leads to air or foam easily entering the water pump, causing cavitation and affecting the stability and reliability of the system operation. To this end, the water cup assembly of this utility model includes: a water cup with a downwardly recessed first groove; an insert disposed within the first groove to restrict the water flow path within the first groove; the insert has a notch, allowing water in the first groove to flow along the notch. The notch in this utility model increases the water intake in the first groove, helping to form a stable water seal layer in the water tank, effectively preventing air from entering the washing pump and preventing cavitation, thereby improving the operational stability and reliability of the washing system. Simultaneously, the notch structure of the insert reduces material usage while meeting functional requirements.

The utility model discloses an energy-saving concrete telegraph pole pouring device, which relates to the technical field of concrete telegraph poles and comprises a pouring mold, positioning plates are arranged at the front end and the rear end of the pouring mold, and a steel cable is mounted in the pouring mold. And a knocking mechanism for reducing bubbles in the cement mortar is arranged at the lower end of the fixing plate. According to the energy-saving concrete telegraph pole pouring device, a first cam is driven by the output end of a driving motor to rotate, the first cam synchronously extrudes a pushing rod when rotating, the pushing rod reciprocates accordingly, a knocking block is pushed upwards in the moving process of the pushing rod, the knocking block is knocked upwards, and therefore the energy-saving concrete telegraph pole is poured. The knocking block can penetrate through the fixing groove and knock the bottom end of the pouring mold when moving upwards, so that air in concrete in the pouring mold can be reduced, and residual air holes in the surface of the pouring mold can be effectively reduced when the pouring mold is centrifugally rotated through a centrifugal machine.

This invention relates to the field of chemical packing sintering technology and discloses a chemical packing sintering device with controllable sintering temperature. The device includes a base, with a combustion furnace and a gas storage tank fixed to the top of the base. A connecting pipe is fixed to the side wall of the gas storage tank, and the end of the connecting pipe away from the gas storage tank is fixed to the outer wall of the combustion furnace. In this device, pulling a block upwards moves a limiting rod out of a limiting hole, pushing a push rod. Through the cooperation of a movable rod and a baffle, the baffle moves downwards, thus blocking the connecting pipe. When the baffle is adjusted, the push rod can be rotated through the limiting rod and the limiting hole to fix the baffle. This reduces the air volume in the combustion furnace, decreases the firepower, and lowers the temperature, thereby allowing for temperature regulation within the combustion furnace.

The present application relates to the field of medical devices, especially to a B-ultrasound image examination auxiliary device.The present application provides a B-ultrasound image examination auxiliary device, which can more evenly apply coupling agent on the surface of the human body, and can absorb the coupling agent on the surface of the human body, assisting artificial to perform more rapid B-ultrasound examination, so as to improve the efficiency of B-ultrasound examination.A B-ultrasound image examination auxiliary device comprises a shell, a gas storage bin, a B-ultrasound probe and a discharging mechanism, etc.The gas storage bin is arranged on the shell, the B-ultrasound probe is arranged on the shell, the gas storage bin is fixedly connected with the B-ultrasound probe, and the discharging mechanism is arranged on the shell.The present application can quickly apply coupling agent on the patient during B-ultrasound examination, and can absorb the excess coupling agent on the surface of the patient's skin.Compared with manual application of coupling agent, the present application is more time-saving and labor-saving, and the operation is simple, which can assist the staff to perform more rapid B-ultrasound examination on the patient, and improve the efficiency of B-ultrasound examination.

The utility model relates to the technical field of wall body construction equipment, and particularly discloses efficient wall body mortar spraying equipment which comprises a U-shaped groove plate, a scraping plate arranged at the bottom of the U-shaped groove plate in an embedded and sliding mode and a lifting mechanism driving the U-shaped groove plate to ascend and descend, a linear push rod motor is fixedly arranged on the back face of the U-shaped groove plate, and an adjusting plate is movably arranged in the U-shaped groove plate. A mortar pipe connector penetrates through the middle of the adjusting plate and is connected with a mortar pump assembly through a pipeline. According to the mortar spraying device, the U-shaped groove plate is attached to the surface of a wall to be subjected to mortar spraying, the adjusting plate is adjusted according to the thickness of mortar spraying, and mortar flows into the space of the U-shaped groove plate, the adjusting plate and the scraping plate from the mortar pipe connector to be temporarily stored; and the linear push rod motor adjusts the distance between the scraper blade and the surface of the wall body, so that mortar attached to the wall body can be conveniently leveled.

This invention provides a method for preparing a quartz crucible with low bubble expansion rate, belonging to the field of quartz crucible production technology. The method includes: S1, pouring quartz sand into a mold and using centrifugal molding to form a crucible bubble layer and a transparent layer, wherein the crucible bubble layer uses coarse-grained quartz sand, and the crucible transparent layer uses fine-grained quartz sand; S2, inserting the formed quartz sand along with the mold into a melting chamber and starting a vacuum pump to evacuate to a predetermined pressure; S3, igniting an arc in the mold, and during the formation of the crucible transparent layer, performing a first stage of high-temperature melting on the quartz sand using a first preset power; S4, in the later stage of melting, performing a second stage of high-temperature melting on the quartz sand using a second preset power, and after the second stage of high-temperature melting, removing the mold to obtain a quartz crucible with low bubble expansion rate. This invention, through the combination of quartz sand particle size matching and melting power adjustment, ultimately prepares a quartz crucible with low bubbles and low bubble expansion rate.

The utility model discloses a hydrogen membrane separation device, which realizes double-prevention water removal through the matching action of a water filtering buffer tank, a U-shaped heater and a separator buffer tank, and realizes secondary prevention through the water absorption and compression resistance action of carbon fiber filler in the water filtering buffer tank. According to the overheating protection system, when too much steam enters the U-shaped heater, the temperature of gas is too high, the overheating protection system controls the steam adjusting valve to adjust the opening degree through the reaction of the process gas filter to reduce air, meanwhile, part of tail gas is pressurized through the draught fan, and the tail gas self-adjusting valve is automatically opened to be mixed with process gas to reduce the temperature; under the action of the overheating system, the film pipe can be better protected, and the shutdown frequency caused by melting of the film pipe is avoided; after the starting and stopping times are reduced, the operation and maintenance cost is reduced; and the permeated gas filter filters dust and purely conveys gas to a subsequent system, so that the dust of the membrane tube entering the subsequent system is reduced.

This utility model discloses a novel extrusion and discharge device for denitrification catalysts, relating to the technical field of denitrification catalyst production equipment. Specifically, it is a novel extrusion and discharge device for denitrification catalysts, comprising a bottom feeding box and a top storage box. A spiral sleeve is installed on one side of the bottom feeding box, and an extrusion die is installed at one end of the spiral sleeve. A double-spiral screw is installed inside the spiral sleeve and the bottom feeding box. Through the coordinated arrangement of the double-spiral screw and the vibrating table, this novel extrusion and discharge device for denitrification catalysts significantly reduces the presence of air bubbles inside the catalyst preform or pits on its surface. Furthermore, the coordinated arrangement of the bottom feeding box, the top storage box, and the double-spiral screw significantly improves the stability of the extrusion pressure of the catalyst preform, thereby increasing the yield.

The application discloses a kind of fiber directional arrangement forming mould device for toughened concrete, belong to concrete preparation equipment field, including mould, the top of the mould is slidably connected with sealing plate, the surface of the sealing plate is fixedly connected with exhaust pipe, one side of the sealing plate is equipped with positioning mechanism, one side of the mould is fixedly connected with hopper, the surface of the mould is equipped with guide mechanism, the guide mechanism includes motor, by the surface of mould is equipped with two electromagnets, again by the magnetic pole of two electromagnets opposite forms magnetic field, so that forced fiber is aligned along the direction, again by the output end of motor rotation drives rotating rod to rotate, again by rotating rod rotation drives knock block to rotate, again by knock block rotation knocks mould and makes mould vibrate, again by mould vibration drives concrete vibration to reduce air in concrete, avoid the problem that traditional toughened concrete mould cannot adjust the direction of steel fiber, improve practicality.