Nivometer capable of removing accumulated snow

Abstract

The invention discloses a nivometer capable of removing accumulated snow. The nivometer comprises an outer barrel with the open upper portion. A clamping piece is arranged on the outer barrel and internally provided with a filter layer and polygonal wheels, and a spoon-shaped fan is arranged in the center of the upper portion of the filter layer. The lower portion of the filter layer is connected with the inner wall of the outer barrel and provided with funnels, water scrapers are arranged on water facing faces attached to the funnels, and the water scrapers are fixedly connected with the lower portion of the filter layer. A collecting container is located below the funnels, a mesh tray is arranged below the filter layer, snow removing devices are arranged on the mesh tray, and spring pieces are arranged between the filter layer and the mesh tray. Compared with the prior art, the nivometer capable of removing accumulated snow has the advantages that tree leaves and other impurities are prevented from blocking the nivometer through the filter layer, the filter layer rotates and shakes on the polygonal wheels so that impurities falling on the filter layer can be prevented from accumulating snow water, the snow removing devices can increase the speed of snow entering the nivometer, and condensation and blockage are avoided.

Description

technical field [0001] The invention relates to a rain gauge or a snow water storage device for meteorological research, in particular to a snow gauge capable of self-clearing snow accumulation. Background technique [0002] The snow measuring device is a special device used to collect snowfall. It is used to measure the snowfall amount per unit time in the area. The previous snow measuring device has a simple structure and a single function. There is no special treatment at the snow water collection port of the collecting device. There will be various problems, such as the evaporation and loss of snow water, the splashing or flying of snow water, and under wind and rain conditions, it will blow leaves, paper scraps and other debris to the collector bottle, resulting in blockage or interference with the collection capacity. , the above problems will more or less affect the accuracy of snow water collection and measurement. [0003] The invention with the patent number 201...

AI Technical Summary

Problems solved by technology

The significance of adding this technical feature is: in the experiment, it is found that increasing the height of the water storage device can indeed increase the water storage capacity of the water storage device when the rain intensity is large, but when the rain intensity is large, the water level of the water storage device rises, and the water pressure also decreases. The increase will lead to an increase in the flow rate of rainwater in the funnel outlet hole, which will increase the water output of the funnel hole and also cause measurement errors. The technical solution to this problem is to make a limit ring on the inner wall of the funnel mouth, and install a rubber ring on the limit ring , the aperture of the rubber ring is equivalent to the aperture of the water outlet of the funnel, so when the heavy rain is strong and the water level rises, the rising water pressure will also crush the rubber ring on the limit ring, and the aperture of the rubber ring becomes smaller, although the outlet of the funnel The flow rate of rainwater increases, but because the hole diameter of the rubber ring shrinks, the rainwater flow becomes thinner and the flow rate does not increase, ensuring that the tipping bucket of the rain gauge has enough time to turn over, and the rainwater in the tipping bucket is cleaned to ensure the measurement accuracy of the rain gauge

The utility model solves the deficiency of poor accuracy of the current rain gauge during heavy rain, and has the advantages of simple structure and production process and low additional cost. Due to the adoption of this technical scheme, it is ensured that the tipping bucket has sufficient time to turn over, and the measurement accuracy of the rain gauge is improved. Although the accuracy of this method is guaranteed, the way of collecting rainwater is not perfect, and there is a certain degree of inhomogeneity

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