Self-filtration structure of aluminum alloy telescopic water pipe of fire truck

Abstract

The invention discloses a self-filtration structure of an aluminum alloy telescopic water pipe of a fire truck, and belongs to the technical field of fire fighting equipment. The self-filtration structure comprises a I-section water pipe and a II-section water pipe, and the front end of the II-section water pipe is installed in the I-section water pipe through a piston in a sliding mode; an opening at the front end of the I-section water pipe is provided with a large filtration screen; the piston is cylindrical, a step-shaped seam opening is formed in the inner wall of the piston, and the front end of the II-section water pipe is installed in the seam opening of the piston in a matched mode; a dirty accommodating ring is installed between the front portion of the piston and the I-section water pipe; opposite radial through holes are formed in the rear portion of the piston and the II-section water pipe, and the through hole in the piston is provided with a channel which is communicated with the rear end of the piston; a small filtration screen is installed between the radial through hole of the piston and the radial through hole of the II-section water pipe. By the adoption of the self-filtration structure of the aluminum alloy telescopic water pipe of the fire truck, micro particles such as silt and iron powder can be effectively intercepted from going into a main seal and pipe bodies of various levels, damages on the main seal and the water pipes are avoided, the reliability of a product is improved, and the service life of the product is prolonged.

Description

Technical field [0001] The invention relates to a telescopic water pipe, in particular to a self-filtering structure of an aluminum alloy telescopic water pipe of a fire truck. Background technique [0002] The aluminum alloy telescopic water pipe of the fire truck is installed on the telescopic boom of the fire truck. It follows the telescopic movement of the boom, connects the fire hydrant on the ground, and sends the water source on the ground to the designated position and height. It is generally composed of 3-6 grades. The material is aluminum alloy. Under normal circumstances, fire engine water is a clean source of water, but in special cases, river water, well water, river water, well water doped with glass, sand, iron filings and other impurities, once entering the telescopic water pipe, it is easy to strain the surface of the water pipe; Sealing after injury will be time effective, resulting in quality problems such as water leakage and inability to maintain pressure, w...

AI Technical Summary

Problems solved by technology

The purpose is to solve the problems of strain, seal failure and water leakage caused by water impurities when the aluminum alloy telescopic water pipe is working, so as to improve product quality and product reliability

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