a restrictor valve

Abstract

The invention relates to a flow-limiting valve which comprises a valve body shell. A water inlet connecting pipe is arranged on the left side of the valve body shell, an annular return water pipe is arranged on the outer wall of the water inlet connecting pipe, a reflux water pipe is further arranged at the end of the water inlet connecting pipe, the outer wall of the reflux water pipe is in sleeve connection with the inside of the return water pipe through the inner wall of the return water pipe, a conical reflux plate is arranged inside the reflux water pipe and connected in the middle of the reflux water pipe through an annular elastic supporting ring, a drain pipe is arranged on a right connecting cover of the valve body shell, a drain cover with a convergent structure is connected onto the drain pipe, a necking end of the drain cover is connected with the drain pipe, the drain pipe is connected onto the annular inner wall of a movable sleeve through a plurality of connecting rods,the conical back of the reflux plate is connected onto the drain pipe through a plurality of elastic connecting rods, a plurality of supporting spring pieces are annularly arrayed on the outer wall of the reflux water pipe, and a plurality of supporting rods are annularly arrayed on the drain cover and contact with the supporting spring pieces.

Description

technical field [0001] The invention relates to a flow limiting valve, which belongs to the field of valves. Background technique [0002] The traditional flow limiting valve uses a floating piston block, which is connected by a spring, and uses the water flow to impact the piston block to realize the floating of the piston block, so that the valve can be closed when the water flow is too fast. The size of the gap between the inner walls is limited, it is easy to be blocked, and when the valve is closed, there is a lack of buffer for the fluid, which can easily cause the pipeline to be impacted and affect the stability of the overall pipeline. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the technical problem in the prior art that the flow limiting valve is easily impacted when closed, and provide a flow limiting valve. [0004] The technical solution adopted by the present invention to solve its technical ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the technical problem that the closing of the flow limiting valve is easy to be impacted in the prior art, and to provide a flow limiting valve

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