Four-DOF fire-fighting spray gun

Abstract

The invention relates to a four-DOF (Degree-of-Freedom) fire-fighting spray gun; the bottom end of a hydraulic cylinder is connected with a bottom connecting base through a pin shaft to form a revolute pair; the bottom connecting base is in 120-degree connection with a bottom bracket; the piston rod of the hydraulic cylinder is in spherical corner connection with a top connecting base to form a spherical movement pair; the top connecting base is in 120-detgree connection with a top bracket; the top bracket is symmetrically connected with the bottom bracket together by six tension springs; every two tension springs are installed at an angle of 120 degrees from one another; the center of the top bracket is connected with a fire-fighting faucet through three rows of support balls in 120 degrees; flow guide pores are designed inside the fire-fighting faucet; and the hydraulic cylinder is connected with a controller. The four-DOF fire-fighting spray gun has the following advantages: firstly, the spray gun is small in volume and light in weight, thereby strengthening fire-fighting ability; secondly, long-time fire-fighting extinguishment can be realized so that automatic fire-fighting extinguishment becomes possible.

Description

technical field [0001] The invention relates to a fire-fighting spray gun, in particular to a four-degree-of-freedom fire-fighting spray gun. Background technique [0002] With the continuous development of urbanization, there are more and more high-rise buildings in cities. Due to various factors, fire accidents in high-rise buildings occur frequently, and the fires often last for several hours to tens of hours. However, the existing fire rescue methods It is common for firefighters to hold fire hydrants and spray water at the fire source to extinguish fires (even in high-altitude firefighting equipment (such as fire ladders, helicopters, etc.)), which is a great challenge to the physical strength of firefighters. In addition, Due to the restriction of the range of water in this fire extinguishing method, firefighters must carry out firefighting operations near the fire scene, which makes firefighters vulnerable to injuries such as falling objects and explosions. There ar...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of urbanization, there are more and more high-rise buildings in cities. Due to various factors, fire accidents in high-rise buildings occur frequently, and the fires often last for several hours to tens of hours. However, the existing fire rescue methods It is common for firefighters to hold fire hydrants and spray water at the fire source to extinguish fires (even in high-altitude firefighting equipment (such as fire ladders, helicopters, etc.)), which is a great challenge to the physical strength of firefighters. In addition, Due to the restriction of the range of water in this fire extinguishing method, firefighters must carry out firefighting operations near the fire scene, which makes firefighters vulnerable to injuries such as falling objects and explosions. Serious problems with the method

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