Extensible fire hydrant based on fluid dynamic regulation and control

Abstract

The invention discloses an extensible fire hydrant based on fluid dynamic regulation and control. The extensible fire hydrant comprises an extensible water output mechanism used for providing a watersource for a fire fighting apparatus and arranged to be switched between an extensible water output state and a retractable water stop state. The extensible water output mechanism comprises a second valve and an extensible water output pipe, wherein the extensible water output pipe can be switched between an extensible state and a retractable state, and the second valve is used for controlling water output and water stop of the extensible water output pipe in the extensible state. The extensible water output pipe comprises a high-pressure water outlet pipe I and a high-pressure water outlet pipe II, wherein a water accommodating cavity is formed between the high-pressure water outlet pipe I and the high-pressure water outlet pipe II, a limiting device is also arranged between the high-pressure water outlet pipe I and the high-pressure water outlet pipe II and is used for preventing the high-pressure water outlet pipe II from breaking away from the high-pressure water outlet pipe I in the movement process, and the high-pressure water outlet pipe I and the high-pressure water outlet pipe II are communicated when the high-pressure water outlet pipe II moves to the limiting device.

Description

technical field [0001] The invention relates to a fire fighting equipment, in particular to 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 retractable fire hydrant installed below the ground. [0004] In order to realize the above-mentioned technical purpose, the technical schem...

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

Images