The retraction concealment of fire hydrant and the method of self-extending spraying high pressure water

Abstract

The invention discloses a shrinkage sheltering and self-stretching high pressure water spraying method for a fire hydrant. The method comprises the steps that a water inlet valve is opened, waterflowenters a first fire protection stand pipe, the waterflow pushes a second fire protection stand pipe to move to the water outlet end of the second fire protection stand pipe, meanwhile, a stretching opening is opened, the second fire protection stand pipe stretches out of a fire hydrant cabinet through the stretching opening, the first fire protection stand pipe and the second fire protection standpipe are connected, the waterflow enters the second fire protection stand pipe from the first fire protection stand pipe, a water outlet valve is opened, the waterflow is drained through the water outlet valve, and when the water inlet valve is in the transition state, the second fire protection stand pipe is in the stretching state but the pipe stops draining water; the water inlet valve is closed, the waterflow enters a water containing cavity, the waterflow pushes the second fire protection stand pipe to move to the water inlet end of the first fire protection stand pipe, the first fire protection stand pipe and the second fire protection stand pipe are disconnected, and the second fire protection stand pipe stops draining water; an opening and closing assembly is switched from the opening state to the closing state till the second fire protection stand pipe is completely shrunk into the first fire protection stand pipe, and the stretching opening is closed.

Description

technical field [0001] The invention relates to a water supply method for fire fighting equipment, in particular to a water supply method for a fire hydrant. Background technique [0002] While fire brings convenience to human beings, it also brings great disasters to human beings. Fire hydrant is a necessary fire-fighting facility in a city, which marks the development speed of a city. Fire-fighting facilities in cities are generally located above the ground, and often Crashed or even crashed by passing vehicles, the damaged fire hydrant will discharge a large amount of water, which not only affects urban traffic and urban beautification, but also wastes water resources. Fire rescue has brought huge threat to people's life and property safety. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a water supply method for a retractable fire hydrant with simple principle and reliable opera...

AI Technical Summary

Problems solved by technology

[0002] While fire brings convenience to human beings, it also brings great disasters to human beings. Fire hydrant is a necessary fire-fighting facility in a city, which marks the development speed of a city. Fire-fighting facilities in cities are generally located above the ground, and often Crashed or even crashed by passing vehicles, the damaged fire hydrant will discharge a large amount of water, which not only affects urban traffic and urban beautification, but also wastes water resources. fire rescue, which poses a huge threat to the safety of people's lives and property

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