An anti backfire gas stove

Abstract

The invention relates to an anti-flareback gas stove. The anti-flareback gas stove comprises a spray nozzle, a furnace end and a burner which are connected in sequence and further comprises a switch mechanism which is arranged in the furnace end and capable of blocking and unblocking a gas channel in the furnace end. The switch mechanism comprises a supporting shaft arranged in the radial direction of the furnace end and fixed to the furnace end, a first blade, a second blade, a self-restoration assembly and a limiting part, wherein the first blade and the second blade are hinged to the supporting shaft and form a blocking plate used for blocking the gas channel in the furnace end after being expanded, and the gas channel in the furnace end is totally unblocked after the first blade and the second blade are attached to each other; the self-restoration assembly is used for driving the first blade and the second blade to be kept expanded, the force of gas on the first blade and the second blade is larger than the restoration force of the self-restoration assembly when a valve assembly of the gas stove is opened, and the limiting part is arranged in the furnace end and used for preventing the first blade and the second blade from being expanded too much. By the adoption of the anti-flareback gas stove, flareback can be effectively reduced or even avoided, and parts of the gas stove are protected against damage.

Description

technical field [0001] The invention relates to the technical field of cooking utensils, in particular to a backfire-proof gas stove. Background technique [0002] Current gas stoves often make a "bang" sound when they are turned off, which is the flameout noise. When the flame is turned off, it is often accompanied by bangs or noises. The heat generated by this kind of combustion not only cannot be used, but may even cause accidents. This is a common phenomenon in tempering. The tempering phenomenon is harmful to the burner and the entire gas Stoves will have destructive effects, which may seriously cause people's property loss or even endanger people's life safety, so the occurrence of tempering should be avoided as much as possible. [0003] The study found that the backfire is due to the continuous decrease of the flow rate of the mixed gas entering the burner, that is, the continuous decrease of the airflow velocity. Finally, because the airflow velocity is lower than ...

AI Technical Summary

Problems solved by technology

When the gas cooker is closed, the valve body assembly cuts off the natural gas inlet channel, but unburned mixed gas remains in the gas distribution pipe 03, nozzle 04, burner head 05 and burner 06, which is prone to backfire

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