Portable sprinkling irrigation rain gauge in field

Abstract

The invention discloses a portable sprinkling irrigation rain gauge in field. The portable sprinkling irrigation rain gauge in field comprises a transparent combined rain collecting funnel, a support upright rod and a movable base, the combined rain collecting funnel comprises a straight cylinder, a rain holding funnel and a conical measuring cylinder, edges of the combined rain collecting funnel are manufactured to be wedge-shaped, and scales which represent sprinkling irrigation intensity are marked on the outer side surface, the combined rain collecting funnel is inserted into a ferrule arranged on the support upright rod to be fixed, scales are marked on the outer side of the support upright rod, the section of the perpendicular portion of the support upright rod is elliptic, and the bottom is formed by a sharp corner. When the rain gauge is used in sloping field, the support upright rod is merely required to be vertically inserted into the ground, the height of the rain gauge which is away from the ground is read out through the length scale of the support upright rod, and when the rain gauge is used in cement flat ground or stored after usage, the support upright rod is inserted into a ferrule arranged on the movable base to be fixed. The portable sprinkling irrigation rain gauge in field has the advantages that the rain holding and measuring functions are integrated, the requirements of sprinkling irrigation water depth measurement in the sloping field and cement flat ground can be simultaneously met, the accuracy is high, the structure is simple, the rain gauge is convenient to move and maintain, the cost is low, and the like.

Description

technical field [0001] The invention relates to hydraulic performance measuring equipment for sprinkler heads used for farmland, gardens, and dust prevention, and in particular to a sprinkler irrigation rainfall metering device that can be used on field slopes and cement flats. technical background [0002] The rain gauge usually refers to the container used to collect the sprayed water of the sprinkler in the test of the uniformity of water distribution of the sprinkler. According to the national standard, the upper part of the rain gauge should be cylindrical, its shape and size should be uniform, the edge of the opening should be a cutting edge without defects, and the structure of the rain gauge should ensure that the collected water will not splash. The height of the cylindrical part should be at least 1 / 3 of the height of the rain gauge, and the height of the rain gauge should be at least twice the average water depth collected during the test, and not less than 150mm....

AI Technical Summary

Problems solved by technology

However, the ordinary rain gauge used in the laboratory and the automatic measuring rain gauge are not suitable for field and outdoor use

First, due to the large changes in field terrain and unevenness, it will affect the conditions of use of the rain gauge, thereby affecting water collection and measurement accuracy; second, due to the heavy cylinder of the rain gauge, it is inconvenient to move and transport; Further limits the use of automatic rain gauges

[0007] If an ordinary collection container, such as a plastic small bucket, is used to collect the sprayed water from the nozzle, although it is easy to carry and move, the small bucket is tilted and easily shifted due to the uneven ground, and the opening edge of the small bucket is not edged. The splashing of water droplets will cause a significant drop in measurement accuracy.

Moreover, the ordinary container can only collect the water volume, but cannot measure the water volume, which brings some inconvenience to the measurement of the hydraulic performance of the sprinkler head in the field.

[0008] After searching, there is no related application patent for rain gauge for field sprinkler irrigation

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