Water level controller for farmland drainage tube

Abstract

The invention discloses a water level controller for a farmland drainage tube. The water outlet of the farmland drainage tube (4) is provided with a water level control cabinet; the water level control cabinet comprises a cabinet body (1), a flow diaphragm trench (2) and one or more flow diaphragms (3); the cabinet body (1) is provided with a flow inlet (5) communicated with the water outlet of the farmland drainage tube (4), a waterspout (7) communicated with a ditch (6) and a drainage pipeline (8); and the flow diaphragm trench (2) is arranged in the cabinet body (1), and the one or more flow diaphragms (3) can be longitudinally arranged in the flow diaphragm trench (2) in a superposed mode. The water level controller can control the underground water level and displacement based on the crop growth requirement, and the farmland water level can be controlled by increasing or decreasing water level diaphragms in the water level diaphragm trench in the water level control cabinet; and by drainage control, the crop growth environment is effectively improved and the water resource utilization factor is enhanced.

Description

technical field [0001] The invention belongs to the technical field of farmland water and soil engineering, and in particular relates to a water level control device connected with a farmland concealed pipe to regulate the farmland underground water level so as to meet the requirements of farmland water levels in different growth periods of crops. Background technique [0002] At present, except for a few pilot projects that use high-tech water level control devices, most of the drainage outlets of farmland hidden pipes are open or equipped with simple manual gates, and no irrigation devices are installed. The depth of groundwater in farmland without water level control devices cannot control drainage according to the groundwater level of farmland and the growth of crops; high-tech water level control devices are costly, troublesome to maintain, and often have circuit control devices, which are not suitable for the changing climate of farmland environment, it is difficult to...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to provide a water level control device for farmland hidden pipes in order to solve the problem that it is impossible to control drainage and irrigation according to the water level of farmland groundwater and the growth of crops in the current drainage of farmland underground pipes

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