Automatic air release valve

Abstract

The invention discloses an automatic air release valve. The valve comprises a shell, a cover and a valve element, wherein the shell is of a hollow structure with an opening formed in the top, a firstprotruding column stretching out upwards is formed in the center of the inner wall of the bottom of the shell, a first guide groove with an opening facing upwards is formed in the first protruding column, and water inlets are further formed in the bottom wall of the shell; the cover is mounted at the top of the shell in an adaptive mode, in addition, a second protruding column stretching out downwards is formed in the center of the inner wall of the top of the cover, a second guide groove with an opening facing downwards is formed in the second protruding column, and the second guide groove and the first guide groove are formed oppositely; an air release port communicating with the exterior and an air release channel communicating with an inner cavity of the shell are further formed in theside wall of the second protruding column; and the bottom and top of the valve element are arranged in the first guide groove and the second guide groove in a sliding mode correspondingly, and a float bowl is further fixed to the side wall of the valve element. The automatic air release valve is simple in structure, reasonable in design, convenient to mount, good in closing effect and good in pressure bearing performance, and movement of the valve element and the float bowl is not affected by the system working pressure.

Description

technical field [0001] The invention relates to the technical field of exhaust of pipelines or water systems, and more specifically relates to an automatic exhaust valve. Background technique [0002] At present, the existing automatic exhaust valves are only suitable for low-pressure exhaust occasions. Their working principle is to use the force of the float to rise and fall with the liquid level, and the linkage exhaust device is opened and closed to achieve the purpose of automatic exhaust, that is, when the gas is collected When entering the valve body, due to the action of air pressure, the liquid level in the valve body will move down, and the float will drop accordingly. When it falls to the lower limit, the lever system will be linked to open the outlet of the exhaust valve to release the gas with pressure, and then the pressure in the valve will decrease. The liquid level moves up thereupon, the float rises, and under the elastic force of the spring, the exhaust por...

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Problems solved by technology

[0004] In view of this, in order to solve the technical problems of poor pressure-bearing effect and narrow application range of the automatic exhaust valve in the prior art, the present invention provides a valve with easy installation, good pressure-bearing performance, good sealing effect and can make the valve core move smoothly. Automatic air vent valve affected by system operating pressure

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