61results about How to "Air pressure adjustment" patented technology

The invention discloses a manufacturing method of a centering rod for measuring. A centering rod bottom tip, a carbon fiber tube with decimeter scales, a fixing clamp with a round level bubble, a locking system, an aluminum alloy round pipe with scales, a connector, an air pressure adjusting piston are manufactured. The centering rod bottom tip is connected with the bottom of the carbon fiber tube with the decimeter scales, the fixing clamp with the round level bubble is arranged at the upper end of the carbon fiber tube with the decimeter scales and is used for fixing the locking system, the aluminum alloy round tube with scales is inserted into the hollow carbon fiber tube with the decimeter scales by the locking system, the connector is arranged at the upper end of the aluminum alloy round tube with the scales, and the air pressure piston is arranged at the lower end of the aluminum alloy round tube with the scales. The centering rod for measuring can fast, conveniently and firmly fix an inner tube and an outer tube of the centering rod together, the inner tube can be fixed at any position and the centering rod is convenient and fast to stretch and retract.

The invention discloses a novel air inlet and exhaust device of a water supply flow-stabilizing tank. The novel air inlet and exhaust device comprises a base, wherein support rods fixedly connected with the base are symmetrically arranged on the upper side of the base, a first rotation groove and a second rotation groove are arranged in each support rod, a first rotation shaft rotatably connectedwith the first rotation groove is inserted in the first rotation groove, a second rotation shaft rotatably connected with the second rotation groove is inserted in the second rotation groove, the first rotation shaft is positioned below the second rotation shaft, and a first rotation plate is arranged on the first rotation shaft. The novel air inlet and exhaust device of the water supply flow-stabilizing tank has the advantages that through the combined action of air pressure in a tank body and the external atmospheric pressure, when air pressure in the tank body is relatively high, a connecting rope pulls a pressure block, then air can be exhausted from an air outlet pipe, meanwhile, the exhausted air passes through a drying device, thus moisture can be eliminated, therefore, the use safety of the device is improved, when air pressure in the tank body is relatively low, under the effect of the external atmospheric pressure, the air inlet pipe is opened, air enters the tank, and the air pressure in the tank is regulated.

The invention relates to a comprehensive treatment device for feces, which comprises a feces collection device, a device main body shell, a feces storage chamber part, a steam treatment device, a fermentation chamber and a temporary fertilizer storage chamber. By installing a detachable feces collection device, users can collect feces at any time and finally collect them in the feces storage chamber. After steam treatment and fermentation, the feces are stored as fertilizer, which not only has a very good effect on improving the urban environment , It can also provide organic fertilizers, which can really turn harm into benefit.

The invention discloses a sealed accommodating bin. The sealed accommodating bin comprises a wall body and a shrinkable supporting frame for supporting the wall body. The shrinkable supporting frame comprises a shrunken state and an expanded state, and the shrinkable supporting frame can be in the shrunken state and the expanded state. In the expanded state, at least one sealed accommodating cavity for accommodating patients is formed by enclosing the wall body, the sealed accommodating bin further comprises an air pressure adjusting device which can monitor and adjust the air pressure in thesealed accommodating cavities. According to the sealed accommodating bin, he shrinkable supporting frame can be in the shrunken state and the expanded state, in the expanded state, at least one sealedaccommodating cavity for accommodating patients is formed by enclosing the wall body, the building of the sealed accommodating bin can be completed quickly, the sealed accommodating bin is put into use, in addition, since the air pressure adjusting device can monitor and adjust the air pressure in the sealed accommodating cavities, the air pressure in the sealed accommodating cavities can be adjusted as required.

The invention relates to an engine plateau air inlet simulation device. The engine plateau air inlet simulation device comprises a pressure stabilizing box. The pressure stabilizing box is separated by a separator plate into a first cavity and a second cavity. The first cavity has an air inlet connected with an air supply system and an air outlet connected with an engine air inlet pipe. The second cavity is used for connecting with a pressure supply device. The pressure stabilizing box is provided with a pressure regulating structure for enabling the first cavity and the second cavity to be communicated or blocked so as to adjust the pressure in the first cavity. The air supply system supplies air into the first cavity of the pressure stabilizing box through the air inlet, and the pressure regulating structure can enable the air in the first cavity to be discharged into the second cavity so as to reduce pressure in the first cavity, or enable the air in the second cavity to flow into the first cavity so as to increase the pressure in the first cavity, thereby realizing adjustment of pressure of air entering the engine air inlet pipe and achieving an effect of accurately controlling inlet pressure of an engine by simulating plateau air inlet states.

The invention belongs to the field of valves, and particularly relates to an inflation valve for a multi-layer tire. The inflation valve for the multi-layer tire comprises a valve for inflating and deflating one layer of the tire. An external air passage is arranged outside the valve, the external air passage communicates with another layer of the tire, the external air passage is provided with anisolation device for isolating the gas in another layer from communicating with the outside, and the gas in another layer can be released by opening the isolation device. The inflation valve for themulti-layer tire has a simple structure, and the external air passage is additionally arranged on the basis of not changing the structure of the valve, so that the air pressure in the multiple layersof the tire can be adjusted.