Rotary gate and farmland water level control system

Abstract

The invention provides a rotary gate and a farmland water level control system. The rotary gate comprises an inner layer, an outer layer and a regulating and control component. The outer layer is provided with at least one hole from left to right from top to bottom. The inner layer is provided with at least one hole from left to right from top to bottom. The holes in the outer layer and the holes in the inner layer are in an overlapped state or in a closed state under the control of the regulating and control component. In the overlapped state, a passageway is formed for draining water, and in the closed state, drainage cannot be achieved; when the two or more holes are formed in the outer layer and the two or more holes are formed in the inner layer, according to different arrangement positions, part of the holes are in the overlapped state under the control of the regulating and control component, part of the holes are in the closed state, the holes in the overlapped state are used for draining water, drainage cannot be achieved in the closed state, and the water level control can be achieved by controlling the states and the positions of the holes. The rotary gate and the farmland water level control system are easy to operate, a lot of infrastructure costs and operation and management costs can be saved, the management is simple, and the rotary gate and the farmland water level control system can be widely used in farmlands, ditches, ponds and the like.

Description

technical field [0001] The invention relates to a gate in the technical field of water level control, in particular to a rotary gate and a farmland water level control system. Background technique [0002] At present, the drainage of farmland is mainly realized by filling and excavating soil on the ridge, or laying pipes on the ridge to drain the runoff water. [0003] However, these methods not only cannot accurately control the drainage, but also often discharge a large amount of excess nutrients directly into the river, resulting in eutrophication of the water body. In addition, when there is a heavy rainfall event, there may also be a farmland flooding event, which has a great impact on agricultural production. [0004] After retrieval, Chinese utility model patent 201520037862.1 provides a curved surface rotary gate, which is composed of a water retaining device and a power device; the water retaining device includes a sliding rotary blade, an embedded frame, and a dam...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned gates are only commonly used structural forms, and cannot control the water level more accurately and conveniently, especially for paddy fields with high water level control requirements.

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