Foldable UAV ejection frame based on rubber band ejection

Abstract

The invention discloses a folding unmanned aerial vehicle launch frame based on ejection of a rubber band. The folding unmanned aerial vehicle launch frame comprises a cylinder and a rubber band ejection assembly, wherein one end of the cylinder is provided with a launching hole, and the rubber band ejection assembly is installed on the cylinder; the rubber band ejection assembly comprises a push plate, a guide rod, a switch assembly, a rubber band fixing mechanism and a rubber band, the rubber band fixing mechanism is installed at one end, where the launching hole is located, of the cylinder, the switch assembly is installed at the other end of the cylinder, the guide rod is installed between the rubber band fixing mechanism and the switch assembly, the push plate is arranged on the guide rod in a sliding manner, and one end of the push plate is used for cooperating with the switch assembly to achieve launching; one end of the rubber band is connected to the rubber band fixing mechanism while the other end is connected to the push plate, and stretching and drawing forces of the rubber band is achieved through the sliding of the push plate. The folding unmanned aerial vehicle launch frame based on ejection of the rubber band has the advantages of simple and compact structure, simple and convenient to operate, easy to carry, applicable to complex environment and the like.

Description

Technical field [0001] The invention belongs to the field of general-purpose aircraft, and specifically refers to a rubber band ejection type ejection frame suitable for ejection type aircraft. Background technique [0002] The elasticity of the rubber band is used as the main portable ejection frame to promote the take-off of the UAV. In actual use, it is portable and fast. According to this, some domestic scientific research institutions or groups have made some UAV launchers using compressed air, metal springs, and elastic cords as direct main propulsion devices. Among them, the most advanced is the switchblade knife that uses pneumatic ejection in the United States, but the compressed air or gunpowder is unstable in the manufacturing and use process, there are safety risks, and it is disposable. Most of the existing ejection devices have the disadvantage of a large ejection stroke, are also difficult to be portable, and cannot meet the actual terrain and environment requirem...

AI Technical Summary

Problems solved by technology

Among them, the most advanced is the switchblade that uses pneumatic ejection in the United States, but compressed air or gunpowder is unstable in the process of manufacture and use, and there are potential safety hazards, and it is disposable

Most of the existing ejection devices have the disadvantage of large ejection stroke, and it is difficult to be portable, and it is difficult to meet the requirements of the actual terrain and environment for launch.

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