Booster type electric pressure-regulating valve

Abstract

The invention discloses a power-assisted electronic pressure regulating valve, comprising a valve body, a valve seat, a valve core and a valve cover; wherein the bottom part of the valve core is provided with a valve plug; the upper part of the valve core is provided with an annular cockle rubber cup; the side surface of the valve seat is provided with a draft tube which is connected with the water inlet of the valve and communicated with the inside of a seal cavity formed by the valve cover, the rubber cup and the valve core; an outflow tube is accessed to the outside of the valve body by the seal cavity; meanwhile, an electric or electromagnetic starting-closing device is arranged to control the on-off of the draft tube and the outflow tube, thereby controlling the on-off of the valve, solving the problems of automatically opening and closing the valve, and realizing automatic control with micro-power consumption; the zero-power consumption self-locking function of the valve at any opening angle reduces the water loss during an over-current, and solves the problems of automatically opening and closing the valve; moreover, the flux size can be controlled, and the valve can be prevented from being freely opened and closed. The power-assisted electronic pressure regulating valve has reasonable structure, is scientifically designed, is convenient for use, not only can be used ona water tube, but also can be suitable for other liquid or gases.

Description

technical field [0001] The invention relates to a valve, especially a power-assisted electric pressure regulating valve. Background technique [0002] In the water-saving automatic irrigation of farmland, the requirements for valves are getting higher and higher. Not only the valves are required to be automatically controlled, but also to prevent the valves from being opened privately. The fluid outlet extension body on the upper part of the valve body has pressure guiding holes connected with the fluid inlet and outlet respectively on the upper end surface of the valve body. On the contact surface of the body, there are pressure guide holes that match with the pressure guide holes on the valve body and communicate with the direction selection plug valve. A gate plate located on the upper part of the fluid outlet extension body is fixed on the valve body and the valve cover. The difference in the position of the plug valve creates a pressure difference on both sides of the ...

AI Technical Summary

Problems solved by technology

[0002] In the water-saving automatic irrigation of farmland, the requirements for valves are getting higher and higher. Not only the valves are required to be automatically controlled, but also to prevent the valves from being opened privately. The fluid outlet extension body on the upper part of the valve body has pressure guiding holes connected with the fluid inlet and outlet respectively on the upper end surface of the valve body. On the contact surface of the body, there are pressure guide holes that match with the pressure guide holes on the valve body and communicate with the direction selection plug valve. A gate plate located on the upper part of the fluid outlet extension body is fixed on the valve body and the valve cover. Depending on the position of the plug valve, a pressure difference is formed on both sides of the gate to form the opening and closing of the valve, but the valve cannot be automatically controlled, nor can it control the flow rate and prevent the valve from opening without authorization.

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