Check valve of hydraulic system of brick machine

The one-way valve of the hydraulic system of block making machine is a valve that can make the one-way valve reverse flow by controlling the fluid pressure. This kind of valve plays an important role in the hydraulic support equipment of coal mine machinery. The difference between the hydraulic control one-way valve and the ordinary one-way valve is that there is an additional control oil circuit. When the control oil circuit is not connected with the pressure oil, the hydraulic control one-way valve works like the ordinary one-way valve. The pressure oil only flows from the oil inlet to the oil outlet and cannot flow in the opposite direction. When there is control pressure input in the control oil circuit, the piston ejector rod moves to the right under the action of pressure oil, and uses the ejector rod to open the check valve to connect the oil inlet and outlet. If the oil outlet is larger than the oil inlet, the oil can flow in the opposite direction.