Automatic flow stopping device adopting pipe inner pressure, and application thereof

Abstract

The invention provides an automatic flow stopping device adopting pipe inner pressure. The automatic flow stopping device comprises a valve body, a flow through hole formed in the valve body, and a valve element used for opening and plugging the flow through hole. The medium pressure in a pipe is utilized to push the valve element to automatically move in the flow direction of the medium pressurein the pipe, so that the flow through hole is plugged; acting force outside the pipe is utilized to overcome the medium pressure in the pipe, and the valve element moves in the opposite direction of the flow direction of the medium pressure in the pipe, so that the flow through hole is opened. Automatic plugging from the tail end of a pipeline can be achieved, the automatic flow stopping device utilizes the water pressure in the water pipe, the situation that a tradition water stop valve utilizes a spring to achieve displacement of a stopping piece so as to conduct blocking is not needed, water leakage caused by damage of the spring is effectively avoided, the automatic flow stopping device is simpler in structure, and the water stopping effect is good; and detaching is not required, otherwater taking devices such as a faucet are directly mounted for automatically opening a plug, and when other devices such as the faucet are removed, the plug is automatically plugged.

Description

technical field [0001] The invention relates to the technical field of pipeline water stop valves, in particular to a water stop valve that automatically stops water by using internal pressure in a pipe without resorting to spring force, and specifically refers to a device for automatically stopping water in a pipe with internal pressure and its application. Background technique [0002] As we all know, there are many water stop devices at present, and the most common faucets, one-way valves, etc. are just a form of water stop device. [0003] The water stop valve of the faucet series belongs to a structure that requires external force to achieve water stop. Except for the solenoid valve, the check valve is a water stop device that uses a built-in spring to block the pipeline without external force. [0004] The current check valves on the market, whether they are three-way or two-way, basically have a spool inside, and then the spool moves directional along the valve stem. ...

AI Technical Summary

Problems solved by technology

[0004] The current check valves on the market, whether they are three-way or two-way, basically have a spool inside, and then the spool moves directional along the valve stem. The force used to seal the pipeline comes from the internal spring, which can be used for a long time. , the spring is rusted, on the one hand, it affects the water quality, and at the same time, it is easy to break and fail. In the slightest, there will be water dripping from the plugging port, and in the severe case, the phenomenon that it cannot be blocked

[0005] At present, in the installation process of plumbing and other pipelines, the temporary or permanent plugging at the end of the pipeline will be screwed into the plug at the end of the pipeline. Some of the plugs are connected by threads, and some are connected by heat. , the blockage needs to be removed, and then other water intake devices such as faucets need to be connected. Waste of water resources in the process, but the installation position of the main valve on the general pipeline is relatively hidden, and some are also installed in some places outdoors, which is very cumbersome to operate

[0006] In another case, water leakage may occur when the faucet is used for many years. If it is not repaired in time, it will cause a waste of water resources. There are generally two types of head or tee, one is a structure with a nest inside, and the other is a light wall structure, which adopts different forms according to different requirements. The one with a nest can be used directly, and the one without If there is nesting, thermal connection or external threaded sleeve can be used, etc.

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