Sliding lever-type metering and control device for irrigation water quantity

Abstract

The invention relates to a sliding lever-type metering and control device for irrigation water quantity. The sliding lever-type metering and control device comprises a water passing tank, a gate on-off device, electromagnetic locks, a travel switch and a controller. The water passing tank is installed in a ditch revetment, two sides of which are provided with a water inlet gate and a water outlet gate. The gate on-off device comprises a sliding lever, a lever support, a balancing weight, a water leakage tank, a buoyancy drum and a support rod. The middle portion of the sliding lever is provided with a U-shaped groove and one side of the sliding lever is provided with the balancing weight. The sliding lever is fixed onto the lever support by means of a rotary shaft. Two ends of the lever are connected with two gates by means of a steel wire rope. The electromagnetic locks and the travel switch are fixed at the top of the water flowing tank. The controller is fixed at the top of the water passing tank and connected with the travel switch and the electromagnetic locks. The controller receives a triggering signal of the travel switch and is capable of controlling on-off of the electromagnetic locks.The sliding lever-type metering and control device for irrigation water quantity has following advantages: the sliding lever-type metering and control device is simple in structure and accurate in metering and used for metering and automatic control of the irrigation water capacity of a single piece of farmland in favor of improvement on utilization efficiency of water resources and automated control over irrigation water quantity.

Description

technical field [0001] The invention relates to a sliding lever type irrigation water measurement and control device, which belongs to the technical field of farmland water conservancy. Background technique [0002] The protection and rational use of water resources is a major issue that people are increasingly concerned about. my country's agricultural water consumption accounts for 70% of the country's total water consumption, and most of it is used in farmland irrigation. Therefore, it is necessary to save irrigation water and establish a strict irrigation metering control management system. has become a priority. With the development of society, the problems existing in irrigation water management in irrigation areas are becoming more and more prominent. For example, in the large irrigation areas in northern my country, there are few water resources and serious waste, the phenomenon of vigorous flood irrigation is common, and the system of paid use of water resources is ...

AI Technical Summary

Problems solved by technology

However, in addition to some irrigation districts with research projects in my country over the years, most of them have only installed relatively simple artificial water measuring facilities, or installed water measuring devices in the main and branch water delivery canals, but the water metering at the entrance of a single farmland and control devices are seldom involved, which makes the water use situation of the irrigation area certain on a large scale, but the water quantity of a single irrigation user is very uncertain

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