Ventilation hole capable of being automatically closed through wind power

Abstract

The invention relates to the technical field of wind power, and discloses a ventilation hole capable of being automatically closed through wind power. The ventilation hole comprises a shell; the innerwall of the shell is provided with the ventilation hole; and the top end of the shell is fixedly provided with a top box, and the left side of the inner wall of the top box is movably connected withan outer rod. According to the ventilation hole capable of being automatically closed through the wind power provided by the invention, through cooperative use of a first electromagnetic block and a second electromagnetic block, when fan blades are subjected to the wind power and the wind power reaches a certain speed, the rotating speed of the fan blades is high enough, and the generated centrifugal force is larger than the magnetic attraction force of the first electromagnetic block and the second electromagnetic block, so that the first electromagnetic block is separated from the second electromagnetic block, and a striking rod penetrates through and moves to the outer wall of an outer rod, at the moment, the striking rod can make contact with a stress plate, the stress plate drives a thin rod to rotate, the thin rod drives a thick rod to rotate, a pull rope is wound around the outer wall of the thick rod, and therefore a wind shield can be pulled upwards, the ventilation hole is blocked, and the effect of closing the ventilation hole according to the magnitude of the wind power is achieved.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a ventilation hole that can be automatically closed by wind power. Background technique [0002] Wind force refers to the mechanical force obtained from the wind; when the lighter hot air suddenly rises, the cooler air will quickly flow in to fill the gap left by the hot air, forming wind. Modern people use wind power to generate electricity, generate heat, etc. Utilize, save energy and reduce emissions, and protect the environment. [0003] Wind power is a very good clean energy in the current society, and it is widely used. Therefore, in order to reduce emissions and save energy, many buildings are equipped with ventilation holes on the top of the building or the top of the windward side to reduce the temperature inside the building. When the wind is very strong, in order to prevent the wind in the building from being too strong, the ventilation hole needs to be closed manu...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a ventilation hole that can be automatically closed by wind force, which has the advantage of automatically closing the ventilation hole and solves the troublesome problem of closing the ventilation hole

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