Multifunctional foam gun with protective function

Abstract

The invention discloses a multifunctional foam gun with a protective function. The multifunctional foam gun comprises a main body. A mixture liquid inlet is formed in the main body, and a water flow backflow piece is arranged on one side of the mixture liquid inlet. A self-protection switch is arranged on one side of the water flow backflow piece, and a self-protection liquid outlet is formed in one side of the self-protection switch. A first negative-pressure air inlet is formed in one side of the self-protection liquid outlet, and a center striking water outlet is formed in one side of the first negative-pressure air inlet. A water spraying oblique opening is formed in the outer side of the center striking water outlet. Through the self-protection liquid outlet, blooming water mist self-protection is achieved while fire extinguishing is conducted through a main water flow; and through spraying by the water spraying oblique opening with a certain inclination degree and the center striking water outlet at the liquid outlet, the negative pressure larger than that of an air-foam gun can be generated, more air can be sucked, the number of foaming times is larger, fluid flowing is freeof resistance, the multifunctional foam gun has no recoil force, and the spraying distance is farther.

Description

technical field [0001] The invention relates to a foam gun, in particular to a multifunctional foam gun with protective function. Background technique [0002] As we all know, in air and foam fire extinguishing systems, the sufficient degree of gas-liquid mixing is related to the foaming ratio of the foam fire extinguishing agent. It is an important performance indicator of capacity. Existing fire extinguishing systems include fixed or mobile fire extinguishing systems. Both fixed and mobile fire extinguishing systems mainly use liquid pumps as the injection power. The foam fire extinguishing agent formed by it has limited spraying distance and poor coverage. It cannot protect itself and is not suitable for the fire extinguishing needs of the current multi-state and large fire scene. The fire extinguishing gun is the main functional equipment of the fire extinguishing system. Also do not have a kind of high-power foam fire extinguishing gun that can realize multifunctional ...

AI Technical Summary

Problems solved by technology

[0002] As we all know, in air and foam fire extinguishing systems, the sufficient degree of gas-liquid mixing is related to the foaming ratio of the foam fire extinguishing agent. It is an important performance indicator of capacity. Existing fire extinguishing systems include fixed or mobile fire extinguishing systems. Both fixed and mobile fire extinguishing systems mainly use liquid pumps as the injection power. The foam fire extinguishing agent formed by it has limited spraying distance and poor coverage. It cannot protect itself and is not suitable for the fire extinguishing needs of the current multi-state and large fire scene. The fire extinguishing gun is the main functional equipment of the fire extinguishing system. There is no such thing as a high-powered, wind-powered foam fire extinguisher for multi-purpose applications

Images