Subway channel natural ventilation quantity testing device

Abstract

The invention discloses a device for testing the natural ventilation quantity of a subway channel. The device comprises a wind direction indicating plate, a rotating end rod, a mounting main body, a rotating part, a telescopic assembly and a measuring assembly, the rotating end rod is fixedly connected to the wind direction indicating plate, extends into the mounting main body and is rotationally connected with the mounting main body; a machine body of the rotating part is fixedly connected to the mounting main body; an output end of the rotating part is fixedly connected with the rotating end rod; the telescopic assembly is arranged in the mounting main body, the fixed end of the telescopic assembly is fixedly connected in the mounting main body, and the telescopic end of the telescopic assembly is connected with the outer side of the rotating end rod; the rotating end rod can vibrate in the rotating process; the measuring assembly comprises a detection ring, a detection block and a control part; the detection ring is fixedly connected into the mounting body, the detection block is fixedly connected to the end face of the wind direction indicator plate, and the control part is arranged outside the mounting body. The purposes of preventing water drops from being attached to the surface of the wind direction indicator plate and improving the detection effect and the detection precision of the wind direction indicator plate are achieved.

Description

technical field [0001] The present application relates to the technical field of indoor environment testing, in particular to a test device for natural ventilation in subway passages. Background technique [0002] The subway (metro / underground railway / subway) is a fast, large-capacity, electric traction rail transit built in the city. The trains run on fully enclosed lines. The lines located in the central urban area are basically set in underground tunnels, and the lines outside the central urban area are generally set on viaducts or on the ground. The subway is a proprietary, high-density, high-capacity urban rail transit system (Metro) covering various underground and above-ground roads in urban areas. The subway in Taiwan, China is called "Rapid transit". In addition to the subway, it also includes the elevated railway (Elevated railway) or the railway laid on the road. Therefore, the subway has exclusive rights of way and no level crossing, which is also a fundamental...

AI Technical Summary

Problems solved by technology

[0005] The present application solves the problem of detecting wind direction and wind force on the wind direction indicating plate in the prior art by providing a natural ventilation volume testing device for subway tunnels due to the high humidity in the subway tunnel. The effect is poor, which leads to the technical problem of deviation in the detection data, and achieves the purpose of preventing water droplets from adhering to the surface of the wind direction indicator plate and improving the detection effect and detection accuracy of the wind direction indicator plate

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