Fire-fighting foam gun capable of realizing mixed flow control

Abstract

The invention provides a mixed flow control fire-fighting foam gun which comprises a gun body, a liquid connector is movably connected to the outside of the gun body, an on-off valve is fixedly connected to the inner side of the gun body, an air suction pipe is fixedly connected to the outside of the gun body, a mixed flow valve is fixedly connected to the inner side of the gun body, and a gun barrel is movably connected to the outside of the gun body. Various fire extinguishing liquids can flow into the gun body through cooperation of the liquid inlet and the liquid connector, meanwhile, the air suction pipe automatically sucks air under the action of fluid pressure to enable the fire extinguishing liquids to be foamed, and the on-off valve can conveniently control on-off and flow of the fire extinguishing liquids in the gun body. According to the fire-fighting disc foam gun, the operation convenience and practicability of the fire-fighting disc foam gun are improved, various fire extinguishing liquids can be efficiently mixed through the mixed flow valve, compared with a fire-fighting foam gun with a single liquid, the fire-fighting disc foam gun has higher fire extinguishing efficiency, meanwhile, the fire rescue time is effectively shortened, and the fire rescue quality and rescue capacity are improved.

Description

technical field [0001] The invention relates to the technical field of fire-fighting foam guns, in particular to a fire-fighting foam gun capable of mixed-flow control. Background technique [0002] Fire-fighting foam guns are mainly used to extinguish Class A, B, and C liquid fires or spray water to extinguish general solid fires. Foam guns are generally used in connection with foam plugs, and can also be used on foam vehicles. The round handwheel that protects the function of the gun, the operator should grasp the handwheel of the gun when using it; at the same time, pay attention to the pressure of the water or mixed solution supplied to the gun should be gradually increased, but not beyond the operating pressure range; to avoid sudden impact or excessive pressure Cause harm to the operator. The existing foam guns can only be fed into water or other fire extinguishing liquids and form foam liquids under the action of air. The water or other fire extinguishing liquids can...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned existing foam guns, generally only water or other fire extinguishing liquids can be single-passed and foam liquids are formed under the action of air. Other fire extinguishing liquids cannot meet the actual fire extinguishing requirements, which will affect the efficiency of fire extinguishing work and prolong the fire rescue time. The existing foam guns can only be fed with water or other fire extinguishing liquids and form foam liquids under the action of air. However, with the diversification of fire conditions and fire substances faced by urban firefighting, a single water or other fire extinguishing liquid cannot meet the actual fire extinguishing requirements, which will affect the efficiency of fire extinguishing work and prolong the problem of fire rescue time. The purpose of mixing multiple liquids, convenient use, high fire extinguishing efficiency, and shortening rescue time is achieved by the present invention through the following technical solutions: a fire-fighting foam gun capable of mixed flow control, including a gun body, characterized in that: the gun body The outside is movable connected with a liquid interface, the inside of the gun body is fixedly connected with an on-off valve, the outside of the gun body is fixedly connected with an air suction pipe, the inside of the gun body is fixedly connected with a mixing valve, and the outside of the gun body is connected with barrel

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