24 results about "Air pressure effects" patented technology

The present application discloses a hoisting tool and a fixture thereof. The fixture comprises a support frame, a clamping mechanism, a pneumatically controlled self-locking mechanism, and a pneumatic valve assembly. The clamping mechanism is arranged on the support frame and is movably arranged relative to the support frame at least in a first direction, such that a clamping space of the clamping mechanism has an adjustable size in the first direction. The pneumatically controlled self-locking mechanism is connected to the clamping mechanism and can communicate with a gas source. Moreover, the pneumatically controlled self-locking mechanism is configured to, in response to an air pressure effect acting on the pneumatically controlled self-locking mechanism, drive the clamping mechanism to move in the first direction so as to adjust the size of the clamping space, and, after the air pressure effect is relieved, lock the clamping mechanism. The pneumatic valve assembly is configured to selectively conduct a gas path between the gas source and the pneumatically controlled self-locking mechanism such that air pressure acts on the pneumatically controlled self-locking mechanism, or block the gas path between the gas source and the pneumatically controlled self-locking mechanism so as to relieve the air pressure acting on the pneumatically controlled self-locking mechanism. According to the present application, the present state is maintained after the gas source is disconnected, thus reducing the risk of a battery falling off from the fixture, and improving the safety during battery hoisting.

The invention relates to the technical field of pouring, in particular to a tool and method for pouring bus vibration, and the tool comprises a supporting unit which comprises a support and a supporting plate used for bearing a poured bus; the supporting plate is arranged on the supporting seat, the buffering connecting mechanism is connected between the supporting seat and the supporting plate, the height of the buffering connecting mechanism is adjustable, the vibration unit comprises a driving assembly for driving the supporting plate to vibrate up and down, and during use, a transfer trolley is conveyed to the top of the supporting plate through a forklift, and then the supporting plate is driven to ascend through an inflation assembly, so that the supporting plate ascends to a proper height; the supporting plate is driven by the driving assembly to vibrate, under the cooperation effect of the auxiliary assembly, the supporting plate drives the circulation vehicle to move up and down, the circulation vehicle vibrates a pouring bus to eliminate bubbles, and under the air pressure effect of the buffering connecting mechanism, noise is greatly reduced.

The invention relates to the technical field of mixing devices, and discloses a water and fertilizer mixing device for landscaping, the water and fertilizer mixing device comprises a batching mechanism, a mixing device and a plurality of fertilizer storage cabins, the bottom end of each fertilizer storage cabin is communicated with the interior of the mixing device through a powder conveying device, and each fertilizer storage cabin is in a closed state; the mixing device comprises a sealed cavity, the top of the sealed cavity is an air pressure cavity area, the bottom of the sealed cavity is a water and fertilizer mixing area, and the fertilizer outlet end of the powder conveying device is located at the position, close to the top, of the air pressure cavity area; and the stirring mechanism is arranged at the central position in the sealed cavity. Through the structural characteristics of the powder conveying device, the air pressure cavity area and the water and fertilizer mixing area are separated in the sealing cavity through the air pressure effect, the powder outlet end is arranged at the top of the air pressure cavity area, the mixing proportion of water and fertilizer can be controlled in real time, dynamic mixing of the water and the fertilizer is achieved, and operation is convenient.

The application provides a variable stiffness method of a vine-like inflatable arm and a position control method thereof, and belongs to the technical field of soft robots. The inflatable arm realizes the tip eversion to be elongated to a desired length through the air pressure effect, the pressure difference in the annular variable stiffness air bag around the arm rod is adjusted to control the local stiffness of the inflatable arm, the wrinkle is generated at the position with the lowest stiffness in combination with a motor-rope device, and the steering control of the inflatable arm is realized; when the position control is performed, sequential control algorithm is adopted to sequentially perform closed loop control on each joint based on the end trajectory tracking task, and three kinds of criteria are established in the algorithm to help the end trajectory tracking task to be completed. The variable stiffness range of the vine-like inflatable mechanical arm is improved, a new manufacturing process is adopted, the level of tip movement is improved, and the sequential control algorithm can help the inflatable arm to realize precise multi-joint parallel collaborative control.

The invention discloses a full-automatic pipe cutting machine based on aluminum pipe machining and a pipe cutting method, and relates to the technical field of pipe cutting machines. The full-automatic pipe cutting machine based on aluminum pipe machining comprises distance adjusting dust collection pieces, each distance adjusting dust collection piece comprises a connecting cylinder, each connecting cylinder is formed by alternately connecting a plurality of flat plates and arc plates, the arc plates are connected with connecting pipes through threaded pipes, and dust collection openings are formed in the middles of the outer sides of the connecting pipes; and the flat plate is in sliding connection with a plurality of inner wall suitable pressing pieces which are distributed at equal intervals, and the inner wall suitable pressing pieces are used for abutting against the non-cutting positions of the inner walls of the materials under the action of elastic force and are matched according to the cutting length. According to the full-automatic pipe cutting machine based on aluminum pipe machining and the pipe cutting method, the extending radius of the supporting plate and the pressure between the supporting plate and the inner wall of a material are changed through the air pressure effect, the possibility that the material deforms or burrs are generated in the cutting process is reduced, the distance adjusting dust suction part is matched with the inner wall adaptive pressing part, and chippings generated on the inner side of the material are absorbed in time.

The utility model relates to the technical field of sealing structures, in particular to a sealing end cover, a bearing box and a wire cutting machine, and aims to solve the problem that cutting powder generated in the process that a to-be-cut part is cut by the wire cutting machine is diffused to the bearing box, and the bearing lubricating environment is damaged. In order to achieve the purpose, the sealing end cover comprises an end cover body, and a center hole allowing a mounting body to penetrate through is formed in the end cover body in the axial direction; the end cover body is provided with a first end face and a second end face which are opposite to each other, an air inlet hole and a liquid inlet hole which are communicated to the center hole are formed in the end cover body, and the liquid inlet hole is located between the air inlet hole and the first end face. By the adoption of the bearing box, due to the air pressure effect, in the working process of the bearing box, the gap formed by the installation body and the end cover body is filled with liquid all the time, the path for cutting powder and other external impurities to enter the bearing box is blocked, and therefore the sealing effect is achieved, and a bearing in the bearing box is protected.

The utility model belongs to the technical field of automobile parts, especially relates to a check valve, including valve body, the valve body, sealing plate and the pressing plate are connected through the connecting assembly, and the connection is fastened, and the anti-loose effect is superior, and the gap is left between the upper portion of pressing plate and sealing plate, is provided with one -way air inlet subassembly between the air inlet end and the air outlet end of valve body, when the air inlet end pressure of valve body is too high, the air pressure effect pushes open one -way air inlet subassembly and enters the air outlet end, when the air outlet end pressure is too high, the air pressure effect pushes open sealing plate, gas flows out, and after pressure balance, sealing plate is automatically closed, double one -way air outlet, also can guarantee gas flow direction correct after the situation that sealing plate is used too long and cannot be closed or breaks, avoids the trouble of equipment caused by backflow, backflow.

The application discloses a visible atomizer structure without liquid leakage, and relates to the technical field of electronic cigarette atomizer structures, which comprises an oil tank, an atomization mechanism, an atomization channel and a separation sheet, wherein the atomization mechanism comprises an oil storage medium, an oil guide atomization medium and an atomization device, the oil storage medium wraps the oil guide atomization medium, the oil guide atomization medium wraps the atomization device, and one side of the oil guide atomization medium extends into the oil tank. According to the visible atomizer structure without liquid leakage, the area corresponding to the oil tank of the shell is made of transparent material, and the liquid level line can be observed. The oil storage medium can temporarily store atomized liquid, avoids direct contact between the atomized liquid and the atomization device, and reduces liquid leakage. The atomization effect of the atomization device is prevented from being affected by the air pressure in the oil tank or liquid leakage occurs. The oil guide atomization medium directly contacts the atomized liquid, and when the liquid level of the atomized liquid is low, the atomization amount of the oil liquid at the atomization device can be maintained at a stable level, the smoking effect is ensured, and burning is effectively avoided.

The invention relates to the technical field of printing equipment, and discloses an elastic floating clamping self-locking mechanism which comprises a machine body, and two opposite inner plates are installed on the inner side of the machine body. Through linkage of the air pump and the capsule ring, real-time increase and decrease of pressure in the hot pressing process are achieved, and the problem that interlayer bubble retention or insufficient binding force is caused by traditional fixed pressure is solved. The first floating device and the second floating device are in linkage with the capsule ring, when the air pressure in the capsule ring is large, the downward pushing force of the first floating device and the second floating device is large, when the air pressure of the capsule ring is gradually reduced, the downward pushing force of the first floating device and the second floating device is gradually reduced, and dynamic pressure self-adaptive adjustment is achieved. And when materials with different thicknesses are encountered, the air pressure control bag ring, the first floating device and the second floating device have the buffering effect, the materials are prevented from being damaged, the elastic floating clamping effect is achieved, and self-locking for extruding the materials is formed under the air pressure effect.

The utility model discloses combined water purification treatment equipment, which relates to the technical field of water treatment and comprises a mounting structure, a cover body structure, a sealing structure, a connecting structure and a filtering structure. The mounting structure is convenient for mounting and dismounting of the filter element through the design of a limiting rod and a clamping block. The cover body structure is in sealed butt joint with the installation structure through threaded connection, and meanwhile a butt joint opening used for being in butt joint with a liquid inlet pipe is formed. The sealing structure is provided with the pressure tank and the filling air bag, and the sealing performance and connection stability are improved through the air pressure effect. A filter element in the filtering structure is used for filtering water, the equipment is simple in structure, good in sealing effect and convenient to mount and maintain, and the water quality treatment effect is improved.

The utility model discloses a nucleic acid extraction and amplification detection kit which comprises a shell, a reaction tank is fixedly connected to the inner wall of the shell, a top cover is arranged at the top of the shell, a fixed pipe is fixedly connected to the bottom of the top cover, and a sealing cover for sealing the reaction tank is fixedly connected to the bottom of the fixed pipe; the top of the top cover is fixedly connected with a motor, one end of an output shaft of the motor is fixedly connected with a driving shaft, and the driving shaft rotationally penetrates through the sealing cover. According to the reaction tank disclosed by the utility model, a solution can be mixed through the stirring blades and is matched with the fixed cylinder, so that the solution can circularly flow, the heating or annealing uniformity is further improved, the test effect is further improved, the temperature detection accuracy is also improved, and the temperature can be accurately detected in the heating and cooling processes of the reaction tank. Air can enter the reaction tank, so that the reaction tank is prevented from being damaged due to the influence of air pressure, the use safety is improved, the interior of the reaction tank is conveniently cleaned, and people can conveniently use the reaction tank.

The utility model discloses a swing head with a brake, which relates to the technical field of machining, and is characterized in that a brake air inlet and a brake releasing air inlet are arranged on a shaft body shell, and an optimized brake mechanism is arranged, so that accurate locking and rotation control of the position of the swing head are realized; the brake mechanism comprises a piston brake disc, a brake pad, a sealing ring, a spring and other components, the brake and unlocking functions are achieved through the air pressure effect, meanwhile, good air tightness and response speed are guaranteed, the device is further provided with a tail end cover and a framework oil seal, the daily dustproof effect is provided, and the stability and durability of equipment are further improved.

The utility model discloses a kind of sealing structure of air cleaner, including cylinder, cylinder cover, the top of the cylinder is provided with annular groove, detachable fixedly connected with assembly seat in the inside of annular groove, the top and bottom of the assembly seat are fixedly embedded with sealing elastic rubber membrane, the top of the assembly seat is fixedly interconnected with connecting pipe;The top of the assembly seat is equipped with filter core by limiting frame;Multiple snap components are jointly installed between the cylinder cover and the cylinder.The utility model in, adopt inflatable dynamic sealing structure, sealing elastic rubber membrane is inflated and deformed by air pressure effect, respectively, and filter core installation ring and annular groove inner wall are pressed tightly, form double seal, significantly improve the sealing reliability;While setting air pressure detection component real-time monitoring sealing cavity pressure, can find leakage anomaly and alarm in time, greatly improve the protection level and system operation safety of engine.

The invention provides an intraocular lens forming mold convenient to demold, and relates to the field of intraocular lens, the intraocular lens forming mold comprises an upper mold and a lower mold, the upper mold and the lower mold are both provided with a lens forming cavity, an air pressure chamber is formed in the lower mold, and an ejection groove is vertically formed between the air pressure chamber and the lens forming cavity; the top of the ejection groove is communicated with the crystal forming cavity, the bottom of the ejection groove is communicated with the air pressure chamber, a piston in the ejection groove is matched with an ejector pin assembly capable of moving up and down, one side of the air pressure chamber is fixedly connected with an air adding pipe, and the other end of the air adding pipe is connected with an air pump. According to the intraocular lens forming mold convenient to demold, through the arrangement of the ejection groove and the ejector pin assembly, during use, the air pressure chamber is inflated through the air adding pipe, the ejector pin assembly ascends under the air pressure effect to eject a workpiece out of the forming cavity, and therefore demolding is convenient, use is convenient, and the production efficiency is effectively improved.

The utility model discloses a surface treatment device for rubber pad production, which comprises a main body unit comprising an operation table fixedly connected with a top frame; the operation unit comprises a leakage plate, a groove is formed in the operation table, a plurality of rectangular boxes are symmetrically connected to the bottom face of the leakage plate in a sliding mode, connecting hoses are fixedly connected between the rectangular boxes, an extending hose is fixedly connected to the rectangular box on the front side, and an electric telescopic rod is arranged on the inner side of the top frame. An electric grinding disc is installed at the bottom end of the electric telescopic rod, and a moving assembly is arranged on the top frame. The connecting sleeve is connected with an external vacuum pump pipeline, then the lead screw is rotated, the rectangular box is driven to move and adjust, then the rubber pad is placed on the bushing, the vacuum pump is started, the bottom face of the rubber pad is adsorbed, the rubber pad is fixed through the air pressure effect, operation is easy and convenient, and practicability is high. And the rubber pad can be thoroughly polished, and the working efficiency is improved.

The efficient table top range hood comprises a machine shell and a filtering device used for filtering oil smoke, a smoke suction channel is formed in the machine shell, a suction port and an exhaust port which are communicated with the smoke suction channel are formed in the front end and the rear end of the machine shell respectively, and a side air outlet channel is formed in the position, corresponding to the rear portion of the suction port, of the periphery of the machine shell. The side air outlet channel and the smoke suction channel are mutually independent, a side air outlet is formed in the side air outlet channel, airflow blown out by the side air outlet forms an air wall, the side air outlet channel is further provided with an air inlet, and the air inlet is used for being connected with a positive pressure air source. According to the ventilation wall formed by the ventilation wall forming device, airflow power is independently provided by the air supply fan, the coverage range and the air pressure effect of the ventilation wall are ensured, and therefore escape of oil smoke in the distance is reduced, and more oil smoke is further treated after entering the air suction channel.

The invention provides an automatic exhaust type piezometric tube monitoring device, belongs to the technical field of water pressure monitoring, and can at least partially solve the problems that the existing piezometric tubes of all hydropower stations usually adopt automatic measurement, the measurement frequency is high, and manual pressure relief cannot meet the measurement requirements; in order to solve the problems that in the prior art, in the prior art, in the prior art, water flow can be discharged from a water outlet along with gas during pressure relief, and the measurement result is affected, the device comprises an exhaust device connected with a pressure measuring pipe, and the exhaust device is provided with a lifting rod, a controller, a conducting strip, a device pressure meter, an atmospheric pressure meter, an electromagnetic valve and a breathable water filtering film. According to the invention, automatic exhaust before measurement can be realized or irregular exhaust can be realized according to the air pressure influence condition, and the water pressure in the pressure measuring pipe is ensured not to leak during exhaust, so that the influence of the air pressure and the pressure relief process on the water pressure measuring result is reduced, and the observation efficiency, the standardization and the data trueness of the air-containing pressure measuring pipe are improved.

The application discloses an air inlet ring, a centrifugal fan and an extractor hood, wherein the air inlet ring comprises an air inlet area, the air inlet area has a contour line, the contour line is an epitrochoid, the epitrochoid is a locus formed by a fixed point on the circumference of a moving circle when the moving circle rolls along a fixed circle without sliding, and the epitrochoid is a cardioid epitrochoid. Compared with the prior art, the application has the advantages that: the air inlet area is formed by the epitrochoid, the epitrochoid can adapt to the air inlet difference of the centrifugal fan at different angles, the backflow leakage in the high back pressure environment is reduced, the air pressure effect is increased, and the efficiency and working condition are more matched in the case that the extractor hood has a large resistance (large back pressure) and a public flue; in addition, the epitrochoid is formed by the rolling of a mathematical circle, the circumferential change is smoother in the other areas except the intersection point, and the change is more adaptive to the gradual change of the air inlet of the volute of the centrifugal fan at different areas.

The application provides a microwave electrothermal thruster ground test system and method, and relates to the field of microwave electrothermal thruster ground test systems and methods.The microwave electrothermal thruster ground test system comprises a microwave source, a resonant cavity normal-pressure section, a resonant cavity low-pressure section, a nozzle and a vacuum chamber assembly; the nozzle is arranged in the vacuum chamber assembly, the inlet of the nozzle faces outward of the vacuum chamber assembly, and the outlet of the nozzle faces inward of the vacuum chamber assembly; the microwave source, the resonant cavity normal-pressure section and the resonant cavity low-pressure section are arranged outside the vacuum chamber assembly. By arranging the microwave source, the resonant cavity normal-pressure section and the resonant cavity low-pressure section outside the vacuum chamber assembly and arranging the nozzle in the vacuum chamber assembly, the problems of large volume of the vacuum chamber, easy discharge of the microwave source and water cooling for heat dissipation when the microwave source and the resonant cavity are placed in the vacuum chamber as a whole are solved, and the problems of the influence of background air pressure on thrust test when the microwave source and the resonant cavity are placed in the atmospheric environment as a whole are solved, so that the volume of the vacuum chamber can be effectively reduced, and the test efficiency can be improved.

The utility model discloses a traditional Chinese medicine application drying and storing device which comprises a storing box body, the storing box body is a cavity shell of a rectangular structure, one side of the storing box body is open and hinged to a sealing door, a plurality of storing partition layers are arranged in the storing box body, and a plurality of storing boxes are arranged on any storing partition layer in a matrix mode. The utility model relates to the technical field of traditional Chinese medicine application storage, in particular to a traditional Chinese medicine application drying and storing device, a box body is adopted for storing traditional Chinese medicine application, a plurality of traditional Chinese medicine application are placed in a storage box in a group, and independent ventilation dryers are arranged in the storage box body and are independently mounted, so that the structure is simple, and the disassembly, assembly and maintenance are convenient; air is pumped into the storage box body through independent ventilation drying, the temperature and humidity in the storage box body are kept normal, the flow guide effect of the ventilation flow channel is matched, air circulation in the storage box body is kept through the passive air pressure effect, then the temperature and humidity are kept, and more energy is saved.

The invention belongs to the technical field of cattle and sheep house ventilation, and particularly relates to a ventilation device for a cattle and sheep house in a plateau pasturing area, which comprises an inner pipe and a sealing cover. The outer pipe and the inner pipe are installed by taking the housing ceiling frame as a support, and the base is installed on the ground in the housing. Due to large day-night temperature difference in plateau areas and strong sunlight in daytime, sunlight penetrates through the outer pipe to heat interlayer air and the wall end of the inner pipe. Hot air in the interlayer rises and is exhausted from the top, and cold air is sucked from the bottom to form circulation so as to preheat air entering the interlayer. After the inner pipe is heated, the temperature rise of dirty air in the inner pipe is faster, and strong suction force is formed to exhaust waste gas. The double effects obviously enhance the hot-pressing ventilation effect and overcome the influence of low air pressure. Interlayer air becomes a heat preservation layer due to large temperature difference at night, heat loss of the inner pipe is reduced, and certain ventilation draft is maintained. The sealing performance of the interlayer of the inner pipe and the outer pipe and the upper end and the lower end is controlled by the sealing cover, the sealing frame and the inserting rod.

The utility model discloses a bottle cap with a liquid storage structure. The liquid storage assembly is arranged in the lower side of the cover body, the mistaken touch prevention assembly is arranged on the upper side of the cover body, the liquid storage assembly comprises a top groove in the surface of the upper side of the cover body, when a stored solution needs to be released, a pull plate is pulled backwards to drive an embedded plate to move backwards in a telescopic groove, and side plates on the two sides are driven to move backwards in side grooves; when the front end of the embedded plate is separated from the upper side of the rotating plate, the upper side of the rotating plate is not blocked by the embedded plate any more, the rotating plate can be poked to rotate upwards, after the rotating plate rotates to release liquid, the rotating plate is in a vertical state, and the inner circulation groove is aligned with the liquid outlet. Under the air pressure effect, the stored liquid in the container bottle flows upwards along the inner circulation groove and flows downwards from the outer circulation groove, so that the stored liquid flows into the bottle body covered by the cover body, and the effect that the stored liquid released liquid of the bottle cover is mixed with the solution in the bottle body is achieved.