Anemometer based on rack pull-down

Abstract

The invention belongs to the technical field of anemometers, and particularly relates to an anemometer based on rack pull-down. The anemometer comprises a base, a rectangular shell, limiting mechanisms, a triggering mechanism, an executing mechanism and a measuring module. The higher the wind speed of the outside is, the shorter the distance for which a rotating shaft extends out of the rectangular shell is, and the smaller the vibration amplitude generated when the rotating shaft is blown by wind is, so that the rotating shaft is indirectly protected. When being blown by extremely large wind,a parabolic cone hollow cup can completely enter the rectangular shell, so that the purpose of protecting the parabolic cone hollow cup is achieved; and in addition, when the wind of the outside is small, the parabolic cone hollow cup can be moved out of the rectangular shell and is reset to continuously measure the wind speed. Due to the design of the four limiting mechanisms, it can be guaranteed that when the wind blows the limiting mechanisms in a pulsating manner, a limiting plate in at least one limiting mechanism generates a limiting relation for a limiting ring disc, so that the limiting ring disc can be continuously limited by the corresponding limiting plate, and the parabolic cone hollow cup can be continuously maintained in the rectangular shell.

Description

technical field [0001] The invention belongs to the technical field of anemometers, in particular to an anemometer based on rack pull-down. Background technique [0002] The anemometer is an instrument for measuring air velocity, and the most commonly used one is the wind cup anemometer, which is composed of three parabolic cone empty cups fixed on the bracket at 120° to each other to form the sensing part, and the parabolic cone empty cups are all in one direction; The whole induction part is installed on a vertical rotating shaft, and under the action of wind force, the parabolic cone hollow cup rotates around the shaft at a speed proportional to the wind speed. For normal or large-level winds, the anemometer can measure the wind speed normally, and the anemometer will not be damaged by the wind; however, when encountering strong winds or particularly large-level winds, the parabolic cone empty cup rotation speed Super fast, so the parabolic cone empty cup that rotates at...

AI Technical Summary

Problems solved by technology

For normal or large-level winds, the anemometer can measure the wind speed normally, and the anemometer will not be damaged by the wind; however, when encountering strong winds or particularly large-level winds, the parabolic cone empty cup rotation speed Super fast, so the parabolic cone empty cup that rotates at super fast speed for a long time is easy to be blown out, thus affecting the use of the entire anemometer

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