Gas-liquid hybrid valve

Abstract

The invention provides a gas-liquid hybrid valve. The gas-liquid hybrid valve comprises a hybrid valve body and a valve body piston rod, wherein the valve body piston rod is installed in the hybrid valve body in a sliding mode; the hybrid valve body comprises a pneumatic valve body and a hydraulic valve body component which are connected to each other; the valve body piston rod comprises a piston rod, an air cylinder piston and an oil cylinder piston which are connected to each other; the oil cylinder piston is installed in the hydraulic valve body component in a sliding mode; the air cylinder piston is installed in the pneumatic valve body in a sliding mode; and a pneumatic reversing valve is installed on the pneumatic valve body, and correspondingly, a reversing gas circuit is dug in the pneumatic valve body and connected to the pneumatic reversing valve to control reversing of the pneumatic reversing valve. The pneumatic reversing valve is reversed through the reversing gas circuit in the pneumatic valve body, so that the automatic cycle work of the gas-liquid hybrid valve is realized.

Description

technical field [0001] The invention belongs to the field of reversing valves, and in particular relates to a gas-liquid mixing valve. Background technique [0002] The reversing valve is a directional control valve with more than two flow forms and more than two oil ports. It is a valve that realizes the communication, cutting and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. The directional control valve relies on the relative movement of the valve core and the valve body. There are two types: rotary valve type and slide valve type; currently on the market Most of the spool movement on the battery adopts electromagnetic control. The electronic control method to control the work of the spool mainly has the following shortcomings. It is necessary to keep the battery valve energized in real time. During a power failure, the battery valve is prone to stop and cannot work, and the battery valve needs to be checked. Programming in...

AI Technical Summary

Problems solved by technology

It is a valve that realizes the communication, cutting and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. The directional control valve relies on the relative movement of the valve core and the valve body. There are two types: rotary valve type and slide valve type; currently on the market Most of the spool movement on the battery adopts electromagnetic control. The electronic control method to control the work of the spool mainly has the following shortcomings. It is necessary to keep the battery valve energized in real time. During the power failure, the battery valve is prone to stop and cannot work, and the battery valve needs to be checked. programming, increasing the difficulty of production

Images