Valve type single-way gate valve

Abstract

The invention discloses a valve type single-way gate valve which comprises a valve, a clamping ring, a traction cable and a connecting rod. The valve made of flexible materials is in a circular shape matched with a sectional area of a pipeline. One side edge of the valve is fixed on the inner wall of the pipeline through the clamping ring to form a fixing edge. The other side of the valve is subjected to one-side flanging inwards to form a free edge. The connecting rod is fixed on the clamping ring and is attached to the inner wall of the pipeline. One end of a traction cable group is arranged in a sector shape along a flange of the valve. The other end of the traction cable group is fixed on the connecting rod. The valve type single-way gate valve is simple in structure, low in cost, stable in effect and convenient to maintain.

Description

technical field [0001] The invention relates to a one-way gate valve, in particular to a flap type one-way gate valve. Background technique [0002] In various water supply, gas supply and other pipe network systems, gate valves are important key components to control the normal operation of the pipe network system. There are many kinds of gate valves used in the pipeline network system, but the one-way gate valve is one of the most important types that cannot be ignored. At present, the one-way gate valves used in various pipeline network systems are mainly traditional mechanical structures, that is, the gate relies on the restoring force generated by the auxiliary spring to make the gate close. When it is opened, the partial pressure of the fluid in the pipeline offsets the gate. The return force of the spring makes the pipeline in a conductive state. When the fluid direction is opposite, the spring return force is in the same direction as the fluid pressure, so that the ...

AI Technical Summary

Problems solved by technology

Because the equipment is a mechanical structure, it must be realized by the cooperation of certain mechanical parts, and the manufacture and operation of this set of mechanisms are relatively complicated, resulting in high manufacturing costs and inconvenient maintenance.

In addition, since the opening and closing mechanism has been working in harsh environments such as water and steam for a long time, the mechanism will fail after a long time, resulting in the gate not being closed tightly or even not closing at all.

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