Constant-temperature water mixing valve

Abstract

The invention relates to a constant-temperature water mixing valve which comprises a valve body and a valve rod. A cold water inlet is formed in one side of the valve body, a hot water inlet is formed in the other opposite side of the valve body, a water outlet is formed in the lower portion of the valve body, the valve rod is installed on the upper portion of the valve body in a sliding mode, the upper end of the valve rod extends out of the valve body and is fixedly connected with an adjusting handle, the lower end of the valve rod is fixedly connected with a sealing block, the sealing block is connected with the inner wall of the valve body through a memory spring, filtering mechanisms are arranged in the cold water inlet and the hot water inlet, and a vibration mechanism is arranged in the water outlet. A temperature sensing element in the valve body is replaced by the memory spring, and compared with original paraffin temperature sensing, the response speed of the memory spring is far higher than that of paraffin, so that the application value of the valve is improved, meanwhile, the filtering mechanisms are installed on the side walls of the valve body, filter screens in the filter mechanisms filter impurities at the hot water inlet and the cold water inlet, so that the impurities are prevented from being attached to the memory spring, and the temperature sensing sensitivity of the memory spring is not influenced.

Description

technical field [0001] The invention relates to the technical field of water mixing valves, in particular to a thermostatic water mixing valve. Background technique [0002] The thermostatic mixing valve is a supporting product of the heating system, which is widely used in electric water heaters, solar water heaters and central water supply systems. It can also be used in electric water heaters and solar water heaters. Users can adjust the temperature of hot and cold mixed water according to their needs. The required temperature can be quickly reached and stabilized to ensure a constant outlet water temperature, and it is not affected by changes in water temperature, flow, and water pressure. Influence, to solve the problem of hot and cold water temperature in the bathing center, when the cold water is interrupted, the mixing valve can automatically shut off the hot water within a few seconds, which plays a role of safety protection. [0003] However, the temperature sensi...

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Problems solved by technology

[0003] However, the temperature sensing element used in the mixing valve in the prior art usually adopts paraffin, and the reaction speed of paraffin is slow, which affects the use of the mixing valve, and because the temperature sensing element is more precise, the areas with poor water quality, such as saline-alkali areas, will suffer from long-term use. Circumstances that lead to thermal failure

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