Inflatable easy-folding rod

Abstract

The invention relates to easy-folding rods for airport air navigation aid equipment, and aims to provide an inflatable easy-folding rod. The inflatable easy-folding rod comprises an inflatable film tubular column, and multilayer airtight chambers with airtight separation between upper parts and lower parts and connected together are formed in the inflatable film tubular column; an inflatable filmtubular beam used for arranging air navigation aid equipment is connected to the top of the inflatable film tubular column, and the bottom of the inflatable film tubular beam is connected with an installation base; each layer of airtight chambers are provided with inflatable and deflatable pipelines, electromagnetic valves and pressure sensors; each layer of airtight chambers are provided with intelligent monitoring and pressurized equipment for inflating and deflating the airtight chambers through the inflatable and deflatable pipelines; and the inflatable film tubular column and the inflatable film tubular beam are made of flexible and high-strength film materials. The easy-folding rod with an inflatable structure is made of the film materials, when an airplane impacts, rapid pressure relief can be controlled automatically, pressure relief can further be broken, easy folding under a special working condition is ensured, the damage to the airplane is avoided, meanwhile, enough structural strength is further achieved in common use, the effect of supporting the air navigation aid equipment is achieved, and wind resistance and seismic resistance are achieved.

Description

technical field [0001] The invention relates to a frangible bar for installation of airport navigation aids. Background technique [0002] With the rapid development of the economy, the demand for civil aviation transportation is expanding, and the state has also guided and planned a large number of transportation airport construction tasks. According to the requirements of airport design specifications, in order to ensure flight safety, the demand for civil aviation special frangible and fragile rods as the support structure of navigation aids is also generally increasing. According to the requirements of the airport design specification, the easy-to-break rod should have sufficient rigidity and strength under normal working conditions (self-weight, wind load, earthquake load, etc.), and can be used normally; crack, thereby protecting the aircraft. The technical key is that under special working conditions, the impact force and impact energy between the aircraft and the b...

AI Technical Summary

Problems solved by technology

[0005] 1. High cost: The material cost of existing products is relatively high, and as special equipment for the industry, the price is high;

[0006] 2. Not suitable for complex structure design: the existing easy-folding mechanism is relatively fixed, and it is not suitable for complex support structures (because the overall foldability of aluminum alloy and polymer materials will decrease after the structure is complex);

[0007] 3. The maintenance of navigation aids is inconvenient: the common height of the easy-to-fold pole is 8-13 meters, and the maintenance method of the navigation aids on the top is either folded down, which is laborious and unsafe; or lifted, which is costly;

[0008] 4. When the impact occurs, the rigid rod body will have a greater impact on the aircraft and cause greater damage

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