Electro-mechanical parachute opening mechanism

Abstract

The invention discloses an electro-mechanical parachute opening mechanism and belongs to the field of model rockets. The mechanism comprises an electronic cabin, a parachute cabin and parachutes. Theelectronic cabin comprises a partition plate for mounting a steering engine, an electronic cabin baseplate, an parachute cover, a rocker arm and an electronic system; the rocker arm is formed by usinga printed piece for connecting a small rocker arm body with a large rocker arm body; the electronic system consists of a barometer, a single chip microcomputer, a pressure reduction module, the steering engine and the like; the parachute cabin consists of a laminated plate, a spring barrel and a spring; the spring is mounted in the spring barrel and extends out of a top plate; the two parachutesare stacked together and arranged in the parachute cabin, one parachute is hung on the small rocker arm body through two metal rings, and the other parachute is directly tied to the bottom of the parachute cabin. The outer parts of the parachute cabin and electronic cabin are additionally provided with thin carbon rods and covered with skin, so that height measurement is accurate; the thin carbonrods are used for keeping the shape of a rocket body, and therefore the resistance of the model rocket during flying is reduced. The mechanism can enable the parachutes to be opened reliably at a specified height, and loads can be separated from the parachutes after returning to the ground.

Description

technical field [0001] The invention relates to the field of model rockets, in particular to the technical field of a highly reliable parachute opening mechanism. Background technique [0002] Nowadays, model rockets can be seen in various model airplane competitions and performances. In the prior art, the common ways to open the parachute of model rockets include gunpowder delayed explosion and purely mechanical parachute opening. These parachute opening methods have one or more of the following disadvantages: [0003] Said gunpowder delayed explosion and umbrella opening is easy to cause the umbrella cloth to burn because the temperature rises sharply when opening the umbrella, causing the rocket to crash. In addition, explosive parachute opening has very high requirements on the airtightness and temperature resistance of the rocket body, which are not easy to achieve in the field of model rockets. [0004] Although the purely mechanical parachute opening has a simple st...

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Problems solved by technology

[0003] The delayed explosion of the gunpowder and the opening of the parachute can easily cause the umbrella cloth to burn due to the sudden rise in temperature when the parachute is opened, causing the rocket to crash

In addition, explosive parachute opening has very high requirements on the airtightness and temperature resistance of the rocket body, which are not easy to achieve in the field of model rockets

[0004] Although the purely mechanical parachute opening has a simple structure, it cannot control the height of the parachute opening at will

[0005] The parachute opening mechanism of the existing carrier model rocket basically only considers the separation of the rocket body load and the parachute drop, and does not consider the separation of the load and the parachute when returning to the ground

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