A double gate air lock wear-resistant valve

Abstract

The application relates to a double-gate air-lock wear-resistant valve, which comprises a valve body, water inlet pipes fixed on both sides of the valve body, and a cylinder fixed on the top of the valve body; a control box is fixed at the bottom end of a hydraulic rod of the cylinder, and the control box A valve shaft is arranged through the inside; the valve shaft is rotatably connected with the control box; the outer peripheral surface of the valve shaft is slidingly connected with two valve plates along the axial direction of the valve shaft; a first spring is fixed on the side of the valve plate close to the control box, and the first spring is far away from the control box. One end of the valve plate is fixedly connected to the side of the control box close to the valve plate. The present application has the effect of improving the sealing performance of the wear-resistant valve gate.

Description

technical field [0001] The present application relates to the field of wear-resistant valves, in particular to a double-gate airlock wear-resistant valve. Background technique [0002] At present, wear-resistant valves refer to valves with wear-resistant butterfly plates. The wear-resistant valve is composed of a pneumatic actuator and a butterfly valve. The actuator is the main body, and the air source signal pressure output by the pneumatic element is used as the power. The air flow direction is changed through the control element to control the opening and closing of the valve. [0003] Related technologies can refer to the Chinese invention patent application with the publication number CN109027282A, which discloses a cast steel flat gate valve with a double gate valve, which includes a valve body. Flanges are respectively arranged on both sides of the valve body. gate. The front and rear end surfaces of each gate are provided with arc-shaped grooves, and the inner cav...

AI Technical Summary

Problems solved by technology

There are often gaps at the connection between the gate and the valve body cavity, and the liquid will flow into the valve body through the gaps, which will affect the sealing performance of the wear-resistant valve.

[0004] In view of the above-mentioned related technologies, the inventor believes that there are often gaps at the connection between the gate plate and the inner cavity of the valve body, and the liquid will flow into the valve body through the gaps, thereby affecting the sealing performance of the wear-resistant valve.

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