Air pressure switch, pressure maintaining device and high-altitude balloon restraining and releasing device

Abstract

The invention relates to the technical field of aerostats, and discloses an air pressure switch, a pressure maintaining device and a high-altitude balloon restraining and releasing device. The air pressure switch comprises a strain surface and a strain detection component. The strain surface is formed on a wall surface of a sealed container and is used for generating deformation in a preset direction when air pressures inside and outside the sealed container are different; and a detection end of the strain detection component corresponds to the strain surface and is used for outputting a trigger signal when a dependent variable of the strain surface reaches a preset value. The air pressure switch disclosed in the invention is simple in structure and low in cost; weather resistance is good;in a floating environment of a high-altitude balloon, a restraining device of the high-altitude balloon is controlled to be reliably released at a preset height; meanwhile, stable air pressure in thepressure maintaining device can be controlled to be maintained so that a stable air source is provided for related load equipment, and a problem that reliable control over a working state of a cutterand the working state of an air pump in the high-altitude balloon floating environment is generally difficult to implement through an existing control means is solved.

Description

technical field [0001] The invention relates to the technical field of aerostats, in particular to an air pressure switch, a pressure maintaining device and a high-altitude balloon constraint releasing device. Background technique [0002] When the high-altitude balloon is released, in order to prevent the ground wind from blowing the sphere of the high-altitude balloon and further prevent the ground wind from having an adverse effect on the sphere structure of the high-altitude balloon and its release operation, it is necessary to set a restraint device in the middle of the sphere so that The sphere appears as a relatively regular spherical shape. After the high-altitude balloon rises to a certain height, the corresponding restraint rope of the restraint device is usually cut off by a cutter to control the opening of the restraint device. [0003] At the same time, after the high-altitude balloon is lifted to a high altitude with the load equipment, the load equipment is i...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides an air pressure switch, which is used to solve the problem that the existing control means are difficult to reliably control the working status of the cutter and the air pump of the high-altitude balloon in its floating environment

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