Method and structure for preventing internal leakage of manual temperature adjusting water mixing valve

Abstract

The invention discloses a method and a structure for preventing internal leakage of a manual temperature adjusting water mixing valve. Inner leakage is prevented by utilizing the non-return characteristic of one-way valves. According to the specific structure and connection, one-way valves are installed at the cold water inlet end and the hot water inlet end of the water mixing valve correspondingly in the water supply direction, and therefore water in a high-pressure pipeline is prevented from entering a low-pressure pipeline. In practice, the one-way valves and the manual temperature adjusting water mixing valve can be integrated into the internal leakage preventing manual temperature adjusting water mixing valve. According to the method and the structure for preventing internal leakage of the manual temperature adjusting water mixing valve, the structure is simple, work is reliable, the price is low, refitting is easy, very high application and popularization value is achieved, and wide market prospects are achieved.

Description

technical field [0001] The invention relates to a method and structure for preventing internal leakage of a manual temperature-regulating water mixing valve, and in particular to the technical field of a method for preventing internal leakage of a manual temperature-regulating water mixing valve based on the non-return characteristic of a one-way valve and structural installation. Background technique [0002] The hot and cold dual-pipeline water supply system has greatly improved people's quality of life and has been more and more widely used in offices, residences, hotels and other buildings. The temperature-adjusting mixing valve matched with the hot and cold dual-pipeline water supply system has almost become our daily necessities, and the market is huge. The water mixing valve also adds a multi-way switch valve and its corresponding nozzles and faucets on the basis of the general structure (at this time, the water mixing valve and the multi-way switch valve are structur...

AI Technical Summary

Problems solved by technology

At this time, although the water supply system does not supply water to the outside, since the cold and hot water pipelines are still connected by the internal valve port of the mixing valve, the water in the pipeline with higher pressure passes through the valve opening of the mixing valve to overcome the pressure of the lower pressure pipeline. The water pressure in the road directly enters the lower pressure pipeline, which often happens

② The nozzle, faucet or its filter is seriously blocked, that is, the nozzle, faucet and filter are blocked by dirt and scale after long-term use

This situation is likely to be mistaken for the water supply system not working at all. If the water mixing valve is not closed in time, it will inevitably cause all internal leakage for a long time

④ Sealing failure of the mixing valve, that is, due to the defects, wear and aging or damage of the parts of the mixing valve itself, a channel is formed between the cold and hot water supply valve ports, and the sealing and isolation function of the cold and hot water fails

In this case, the seal of the mixing valve is generally partially ineffective. Although the amount of internal leakage is not large, the symptoms of internal leakage are less obvious, and it is more difficult to be found. The time of internal leakage is longer and the loss is also great, which interferes with the normal operation of the water supply system. also very big

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