Tap water cut-off leakage-proof protection valve device

Abstract

The invention relates to a valve device, in particular to a tap water cut-off leakage-proof protection valve device, which is assembled at the water supply end of a tap water pipe net and plays a role in water cut-off leakage-proof protection. The tap water cut-off leakage-proof protection valve device comprises a leakage-proof protection valve (2) and a reset starting valve (6) connected in parallel. The leakage-proof protection valve (2) is provided with a float chamber (4); a water inlet and a water outlet are formed at the upper and lower ends of the float chamber (4); a floating plug (3) is arranged inside the float chamber (4); and the water outlet is completely closed when the floating plug (3) is attached to the water outlet of the lower end of the float chamber (4). The reset starting valve (6) is a switch valve used for opening the leakage-proof protection valve (2) after the water supply is recovered. The tap water cut-off leakage-proof protection valve device implements plugging by using the pressure of the tap water acting on the floating plug, realizes the reset starting of the leakage-proof protection valve by using the water pressure and the floating force of the floating plug in the water, and has simple structure and reliable plugging. Therefore, the leakage-proof water tightness of the whole device is easily guaranteed, and the reset operation is more convenient.

Description

technical field [0001] The invention relates to a valve device, in particular to a valve device which is assembled at the water supply end of a tap water pipe network and plays the role of water stop and leakage prevention protection. Background technique [0002] At the water supply end of the water pipe network (such as taps in public places or households), it often happens that when people unscrew the taps and find that the water is cut off, it is easy to forget to turn off the taps. Continuous release of water, if not discovered in time, will not only cause waste of water resources, but also cause serious consequences of items and sites being flooded. [0003] In the Chinese utility model patent No. 91210660.3, titled "A Self-Closing Switch for Drinking Water Stopping", a valve device for solving the above-mentioned problems is disclosed. The chamber is filled with water, the float is at the upper end of the float chamber, the valve connected with the float is opened, a...

AI Technical Summary

Problems solved by technology

[0004] Because this utility model only relies on the magnet suction to close the valve, the reliability of the plugging is poor; in addition, it installs a push rod that pushes away the magnetic ring on the switch shell, and a push rod assembly hole that is easy to leak is formed on the switch. It is easy to leak when it is tight or the seal is damaged; the operation of resetting the valve through the ejector rod needs to rotate the end of the ejector rod back and forth, which is inconvenient to operate

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