3CRC parallel mechanism fire monitor

Abstract

The invention replaces a pipeline structure in a current fire monitor system by a 3CRC parallel mechanism, provides a parallel mechanism fire monitor device, thus reduces pressure loss generated by flowing through a bend, increases the fire-extinguishing fluid jet distance and height at a same inlet pressure, reduces energy consumption, and improves benefits. The invention comprises a 3CRC parallel mechanism, a water flow pipeline system, and a mobile pedestal. The main part of the 3CRC parallel mechanism comprises a parallel mechanism mobile platform [2] and a parallel mechanism fixed platform [18] which are connected by 3 side chains. The structure of each side chain is completely the same; taking one side chain for example, the side chain is started from the parallel mechanism mobile platform [2], and a cylindrical pair one [4], a connecting rod one [7], a lower connecting rod one [10], a lower cylindrical pair one [14], and the parallel mechanism fixed platform [18] are connected together; by the driving of a servo motor, relative rotation between the connecting rod one [7] and the lower connecting rod one [10] is realized; the other two side chains can realize similar motion,and the combined motion of the 3 side chains can realize the motion output function of the whole device. During application, the fire monitor mobile pedestal is moved to a proper position; a high pressure water inlet [19] is connected to a high pressure water pipe outlet of a hydrant; and a switch of the hydrant is turned on to perform fire-fighting work of the fire monitor.

Description

technical field [0001] The invention relates to a fire monitor based on a 3-CRC parallel mechanism, which is a novel mechanical device of the fire monitor, which can replace the existing serial structure fire monitor in all application occasions. Background technique [0002] Fire monitor is an important equipment for long-distance fire fighting. It plays the main fire extinguishing function in major fires by spraying water, foam and other fire-fighting fluids. With the increasing number of high-rise buildings and the increasingly severe fire situation, the requirements for fire monitors are getting higher and higher. It is required to have a long spray distance and a high lift under a certain power. In general, the spraying distance and lift of fire monitors mainly depend on the pressure of fluid ejected from the nozzle. At present, the fire monitors used at home and abroad all adopt the series structure type, and the fluid must flow through multiple 90° and 180° bends in ...

AI Technical Summary

Problems solved by technology

At present, the fire monitors used at home and abroad all adopt a series structure type, and the fluid in the monitor must flow through multiple 90° and 180° bends, resulting in a large pressure loss

[0003] Usually, in order to increase the range and lift of fire monitors, designers pressurize the fire water to increase the pressure of the fluid ejected from the nozzle. However, this method requires all related equipment to be mechanically strengthened. Verification, and redesign and manufacture of some key mechanical parts, adding additional costs

In addition, the excessively high outlet water pressure also puts forward higher requirements for the safe operation of fire monitors, which increases the burden on firefighters and may even cause serious consequences for firefighters' casualties

At present, there are also scientific research institutions and related manufacturers aiming at this problem, designing a smoother fire monitor pipeline system, and designing the fire monitor products with a range and lift exceeding a certain value as fixed, although this can partially improve the existing problems of the products. , but the market's performance requirements for fire monitors are far from being met. The design of fixed fire monitors will also cause inconvenience in the movement of the fire protection system. In many cases, there are potential fire safety hazards, which obviously cannot completely solve the problem.

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