Hot and cold water diverter valve

Abstract

The invention discloses a shunt valve for cold water and hot water. The shunt valve comprises an outer sleeve, wherein a shunt cavity, a reflow cavity and a hot water cavity are formed in the outer sleeve; the reflow cavity is communicated with the shunt cavity by a first communicating opening; the hot water cavity is communicated with the shunt cavity by a second communicating opening; a one-way valve is arranged in the reflow cavity; a piston cylinder is arranged in the shunt cavity; a certain clearance is reserved between the outer wall of the piston cylinder and the inner wall of the outer sleeve; a first through hole, a second through hole and a third through hole are formed in the cylinder wall of the piston cylinder; a temperature sensitive actuator and a first elastic element are arranged in the piston cylinder; a seal disc is arranged on the temperature sensitive actuator; an elastic component is arranged on the inner wall of the outer sleeve. According to the shunt valve disclosed by the invention, accurate shunting of the cold water and the hot water can be realized by sliding fit between the piston cylinder and the outer sleeve; meanwhile, the water outlet temperature of hot water can be regulated according to the demand; the shunt valve has the advantages of accurate judgment, high reflow efficiency, stable operation and long service life.

Description

Technical field [0001] The invention relates to the technical field of heating valves, in particular to a cold and hot water diversion valve. Background technique [0002] In modern life, because the water supply pipe of the hot water supply system usually has a certain length, when hot water is used, a certain amount of stored cold water must be discharged each time to supply hot water, especially when the water point is relatively far from the hot water supply point. When it is far away, this problem is particularly prominent. If things go on like this, it will not only cause a lot of waste of water resources, but also increase the additional expenses of users. [0003] At present, there are some technologies that can solve the above problems. For example, the temperature-adjusting cold and hot water diverter valve disclosed in Chinese Patent No. 201420249760.1 can solve the problem of cold water backflow, but it has the following problems: When the hot water faucet is naturally...

AI Technical Summary

Problems solved by technology

If things go on like this, it has not only caused a lot of waste of water resources, but also increased the additional expenses of users

[0003] At present, there are some technologies that can solve the above problems. For example, the temperature-adjusting cold and hot water diverter valve disclosed in Chinese Patent No. 201420249760.1 can solve the problem of cold water backflow, but it has the following problems: When water leaks or is thought to cause water leakage, the piston is prone to misjudgment and starts to work, which will waste hot water resources; cold water is easy to flow back into the piston during backflow, which makes the diversion efficiency poor and leads to slow hot water supply

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