Gas water heater constant-temperature valve element

Abstract

The invention discloses a gas water heater constant-temperature valve element which comprises a valve element shell, a rotary rod, a guiding rod, a plunger, a plunger seat, a temperature bulb, a protection spring, a working spring and an auxiliary spring. The rotary rod, the guiding rod, the plunger, the plunger seat, the temperature bulb, the protection spring, the working spring and the auxiliary spring are arranged in the valve element shell; an upward combined force value of the working spring and the auxiliary spring is larger than a downward force value of the protection spring; the valve element shell is provided with a valve element inner cavity, a valve element cold water inlet, a valve element hot water main inlet, a valve element hot water supply inlet and a valve element mixedwater outlet; when the rotary rod rotates, the guiding rod moves up and down through the threaded linkage action of the rotary rod, the temperature bulb is extruded by the protection spring and the working spring, the plunger moves up and down along with the temperature bulb, and the cold and hot water inlet proportion of the valve element cold water inlet and the valve element hot water main inlet are adjusted through the plunger; and the valve element hot water supply inlet is provided with a hot water supply control switch. Therefore, the problem that the gas is extinguished or cannot be ignited when water temperature in summer and at normal temperature is high in the prior art is solved, and meanwhile, the gas water heater constant-temperature valve element is reliable in temperature adjustment and good in use safety.

Description

technical field [0001] The invention relates to the technical field of gas water heaters, in particular to a gas water heater thermostatic valve core. Background technique [0002] At present, the thermostatic faucets on the market are not suitable for gas water heaters, especially in summer, when the cold water temperature is close to 25°C, the amount of hot water required by the thermostatic faucets is small, and the power loss of gas water heaters from cold water heating to the required hot water It is also low, and there are often problems such as gas water heaters that cannot be ignited, hot water is not produced, or intermittently ignited, causing users to be unable to shower normally. [0003] In addition, most of the gas thermostatic faucets launched on the market are supplemented with cold water at the back end of the thermostatic valve core to forcibly lower the temperature of the mixed water; Turn it up a bit, and the temperature required for the shower can only ...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a thermostatic valve core for a gas water heater, which solves the problem of gas extinguishment or failure to ignite when the normal temperature water temperature is high in summer, etc. in the traditional technology. At the same time, Reliable temperature adjustment and good safety in use

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