Water gun nozzle for fire fighting

Abstract

The invention relates to a water gun nozzle, in particular to a water gun nozzle for fire fighting. The water gun nozzle comprises a nozzle water pipe, a valve core, a jet nozzle, a nozzle plug cover,a valve core plug and spring assemblies, wherein the valve core is slidably connected in the nozzle water pipe, the interior of the valve core is connected with a valve core plug in a sliding mode, the jet nozzle is fixedly connected to the nozzle water pipe, the spray head plug cover is connected between the spray head water pipe and the jet nozzle in a threaded fit mode, the spring assemblies comprises springs I and springs II, the springs I are located in the springs II, and the springs I are located between the valve core plug and the jet nozzle, the springs II are located between the valve core and the jet nozzle, a low-pressure water cavity is formed among the nozzle water pipe, the jet nozzle and the nozzle plug cover, and a high-pressure water cavity is formed in the middle end ofthe nozzle water pipe and the jet nozzle. According to the water gun nozzle, the working water pressure can be selected according to needs, so that the working state is changed, and the use requirements of the fire-fighting operation can be well met; and the fire can be more effectively jetted according to the water pressure conversion spraying mode.

Description

technical field [0001] The invention relates to a water gun nozzle, in particular to a fire-fighting water gun nozzle. Background technique [0002] For example, the patent application number is CN201010010023.2, which is a fire sprinkler with adjustable water spray particles, which belongs to the technical field of fire fighting equipment. The structure is that the top of the lower body is connected with the upper cover, the lower body is provided with a rectifying channel, the outlet of the rectifying channel is connected with the nozzle, the upper part of the rectifying channel communicates with one end of the water inlet pipe; the other end of the water inlet pipe protrudes from the upper cover. When the invention sprays water, the rotation speed of the nozzle can not only rotate quickly, but also rotate slowly, which enhances the flexibility of the fire sprinkler and expands the scope of use; but the invention cannot adjust the spray mode according to the water pressure...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fire-fighting water gun nozzle, which can automatically perform low-pressure dispersed spraying and high-pressure convergent spraying according to the water pressure, and can select the working water pressure according to the needs, and then change the working state, which can better adapt to the use of fire-fighting operations. ;The spraying method can be converted according to the water pressure, and the fire can be more effectively sprayed and extinguished; the pressure can be limited during the high-low pressure conversion process, so as to avoid insufficient pressure and unable to converge the spray; micro-bending can be performed without changing the internal volume to solve the problem. Solved the problem that the water pipe is not easy to bend during high-pressure spraying, and the orientation of the nozzle of the water gun is not suitable for adjustment

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