6results about How to "Guaranteed air intake" patented technology

The invention relates to the technical field of rubber foaming materials, and discloses a preparation method and application of a microporous EPDM rubber foaming material. The anti-aging co-crosslinking agent structure contains a multi-maleimide group, which can generate chemical crosslinking with the EPDM rubber, and the crosslinking activity of the molecular chain is enhanced, so that the carbon dioxide dissolved in the matrix is ​​not easy to diffuse out of the matrix, and the nucleation sites are gradually increased, which can support the formation of the pore structure and maintain the integrity of the pore structure, so as to form a dense microporous structure; the imide heterocycle, triazine ring and benzene ring in the anti-aging co-crosslinking agent have strong high temperature resistance. In the rubber vulcanization process, the double bonds are opened to participate in the crosslinking reaction, and free radical active species are formed, which undergo a co-crosslinking reaction with the EPDM rubber, improve the crosslinking network structure, improve the heat air aging resistance and salt spray aging resistance of the EPDM rubber, and enhance the elastic recovery ability of the rubber.

This utility model relates to a spray gun capable of multi-stage atomization, belonging to the technical field of multi-stage atomization spray guns. The multi-stage atomization spray gun includes: a spray pipe with a nozzle threadedly connected to its inner wall; and an anti-backflow mechanism, comprising two sealing gaskets slidably connected to the inner wall of the nozzle, and two mounting blocks fixedly connected to the inner wall of the nozzle, with the surface of the sealing gaskets slidably connected to the inner wall of the mounting blocks. Through the cooperation of springs, sealing gaskets, and mounting blocks, unidirectional limiting of the air holes within the nozzle is achieved, thereby preventing the solution inside the nozzle cavity from flowing into the air holes, ensuring the air intake of the nozzle cavity, and thus guaranteeing the atomization effect. The cooperation of a first sealing ring and a second sealing ring seals the connection between the nozzle and the spray pipe, preventing leakage at the connection and improving the atomization effect of the spray gun.

An aerosol generating device is provided with an air inlet channel and an atomizing channel, the air inlet channel comprises a first air inlet cavity and a second air inlet cavity communicated with the atomizing channel, and a communicating hole communicated with the first air inlet cavity and the second air inlet cavity is formed in the air inlet cavity; the aerosol generating device is further provided with a first air inlet and a second air inlet which are communicated with the first air inlet cavity, the first air inlet and the second air inlet are arranged in a staggered mode in the extending direction of the atomization channel, and / or the included angle between the orientation of the first air inlet and the orientation of the second air inlet is not zero. The first air inlet and the second air inlet are both communicated with the atomization channel through the communicating holes, on one hand, the probability that all the air inlets are blocked or shielded can be reduced by arranging the first air inlet and the second air inlet which are different in position and / or orientation, and the air inlet amount and normal work of the aerosol generating device are ensured; on the other hand, the air inflow of the atomization channel can be adjusted by adjusting the size of the communicating hole, and the consistency of mass production of the aerosol generating device is ensured.

The utility model discloses a portable hair dryer, including hair dryer main part, the hair dryer main part left and right both ends wall all are provided with positive pole magnetic attraction groove, the hair dryer main part left and right both ends are connected with dustproof structure and hair curling structure respectively, the fixed frame is fixedly installed with negative pole magnetic attraction fixed ring, the negative pole magnetic attraction fixed ring left and right both ends respectively adsorbed with first metal dustproof board and second metal dustproof board, the negative pole magnetic attraction fixed ring left and right both ends all are provided with auxiliary groove, first metal dustproof board and second metal dustproof board inboard all are fixedly connected with metal auxiliary ring, the fixed frame right side fixedly connected with first negative pole magnetic attraction connecting ring. The portable hair dryer, through dustproof structure, the dustproof effect of hair dryer air inlet is improved conveniently, and dustproof board is convenient to detach, thereby being convenient to the overall cleaning of dustproof board, through hair curling structure, it is convenient to carry out hair curling operation, thereby improving its functionality.

The utility model discloses a kind of axial flow centrifugal compressor for compressed air energy storage, it is related to energy storage technical field, comprising: axial flow section, centrifugal section and main shaft;The axial flow section has casing and the axial flow rotor in the casing, the centrifugal section has volute and the centrifugal rotor in the volute, the casing is connected with the volute;The axial flow rotor is connected with the one end of the main shaft by fastener, the centrifugal rotor is sleeved on the main shaft, the upstream end of the centrifugal rotor is supported on the boss of the main shaft the downstream end of the centrifugal rotor is detachably connected with the main shaft by connecting structure.The utility model technical scheme, axial flow rotor and centrifugal rotor are respectively set as detachably connected with main shaft, so that axial flow rotor, centrifugal rotor and main shaft can be separately produced, for large flow, high pressure ratio compressor, independent production facilitates each part manufacturing.

The utility model relates to the field of tea cooking copper furnaces, and discloses a charcoal fire tea cooking artware copper furnace which comprises a copper furnace body, a furnace bottom, a furnace grate and a furnace plate, a dismounting assembly is arranged between the copper furnace body and the furnace bottom, a slag outlet is formed in the front side of the copper furnace body, an air inlet adjusting assembly is arranged between the slag outlet and the copper furnace body, and an air outlet adjusting assembly is arranged between the furnace bottom and the furnace plate. A plurality of long-strip-shaped holes are formed in the top of the fire grate, and supporting plates are fixedly connected to the periphery of the inner side of the copper furnace body. The utility model has the following advantages and effects: the copper furnace is convenient to assemble and use, so that the use effect is better, meanwhile, the effective cross sectional area of inlet air can be adjusted, the size of the inlet air can be further adjusted and controlled, the combustion temperature of coal can be further controlled, the tea cooking effect is better, and the service life is prolonged. Large gaps exist among the outer circular ring, the connecting plate and the inner circular ring, so that flames generated by burning coal can directly heat the teapot, and the tea boiling efficiency is improved.