Anti-blocking stop valve

Abstract

The invention relates to the technical field of valves, and discloses an anti-blocking stop valve. The anti-blocking stop valve comprises a valve body, a valve rod is movably connected to the top of the valve body, a rotating rod is fixedly connected to the top of the valve rod, a water inlet pipe is fixedly communicated to one side of the valve body, a water outlet pipe is fixedly communicated to the side, far away from the water inlet pipe, of the valve body, the inner top wall and the inner bottom wall of the water inlet pipe are each provided with a sliding groove, sliding rings are in sliding connection to the interiors of the sliding grooves, a limiting ring is fixedly connected to the inner wall of the water inlet pipe, and the sliding rings are located on the side faces of the limiting ring. According to the anti-blocking stop valve, a first filtering net is arranged inside the water inlet pipe, large sundries can be effectively prevented from entering the valve body through the water inlet pipe by means of the first filter net, and therefore the stop valve has the anti-blocking effect, stop valve blockage caused the fact that the sundries enter the stop valve along with water flow is effectively avoided, and people can use the anti-blocking stop valve more conveniently.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to an anti-clogging stop valve. Background technique [0002] Globe valve, also known as cut-off valve, is a forced sealing valve, so when the valve is closed, pressure must be applied to the disc to force the sealing surface not to leak. When the medium enters the valve from the bottom of the disc, the resistance that the operating force needs to overcome is the friction between the valve stem and packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve stem The diameter of the valve should be large, otherwise the valve stem will be bent. According to the connection method, it is divided into three types: flange connection, screw connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve will be changed The upper part of the disc en...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an anti-clogging shut-off valve, which has the advantages of anti-clogging, and solves the problem that since there are many sundries in the pipeline, the sundries will enter the interior of the shut-off valve with the water flow, causing the The stop valve is blocked, which brings great inconvenience to people's use

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