Automatic paddy field irrigation device and system

Abstract

The invention belongs to the paddy field irrigation field and provides an automatic paddy field irrigation device. The device comprises a water tank, a water bag, a floating plate, a drain pipe, a float chamber and a float; the water tank is arranged at the water source injection opening of a piece of paddy field to be irrigated; the water bag is arranged in the water tank; the floating plate is arranged in the water bag; the top end of the drain pipe is connected with the water outlet of the water bag, while the bottom end of the drain pipe is arranged above the piece of paddy field to be irrigated; the float is arranged under the bottom end of the drain pipe by use of the float chamber; a plug is arranged on the top of the float, and used for plugging the bottom end of the drain pipe as the float rises when the irrigation stop water level of the piece of paddy field to be irrigated is reached. The automatic paddy field irrigation device is capable of performing automatic irrigation on the pieces of paddy field to be irrigated at all levels without wasting water resource, and drainage can be realized once the water outlet of the piece of paddy field at the lowest level is opened; besides, when rain falls, the water bag swells as the water level rises under the action of the floating plate inside the water bag, and therefore, rainwater can be accumulated; besides, the device is simple in structure, low in cost, convenient to use and easy to popularize.

Description

technical field [0001] The invention relates to the field of paddy field irrigation, and in particular provides an automatic paddy field irrigation device and system. Background technique [0002] Paddy fields are arable land for growing aquatic crops. In order to ensure the balanced water level of crops everywhere, the surface of the fields must be flat, and crops are generally planted in a large area. It is difficult to ensure a large area of ​​flat arable land. Therefore, paddy fields are usually distributed in the form of terraces. There is a height difference between the fields, which are separated by ridges. [0003] There are two main methods of traditional paddy field irrigation. One is the single-row single-irrigation type. The well water in the field is pumped into the water trenches, and then the water is introduced into each field through the water trenches. The water trenches for field water supply are basically It is a simple underground moat project. The unde...

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Problems solved by technology

Although the operation is simple, it requires personnel to guard, and the irrigation needs to be stopped after the lowest level of field is filled, otherwise it will cause waste of water resources, and it needs to be irrigated every few days

[0005] In addition, since the traditional serial irrigation is generally intermittent irrigation, in order to make the crops grow close to the optimum water level during the process of water loss, the pad height of the nozzle is generally slightly higher than the optimum growth height of the crops, but this height is Far below the actual tolerance water level of the crop

When the rainfall occurs, the rainwater will flow out from each outlet, and the rainwater is not only a free water resource for farmers, but also contains a lot of nutrients, so people would rather take the rain to raise the outlet when there is a sudden heavy rain , to store rainwater as much as possible, which is obviously very inconvenient, and it is often impossible to store rainwater in time, and the rainfall has stopped. In addition, the rainfall time is unpredictable, and it is not easy to prepare in advance

[0006] Although there are some automatic irrigation systems that use water level sensors and water pumps and other equipment, the overall system is cumbersome, with high investment and operating costs, and requires long-term management and maintenance. It is not suitable for large-scale paddy fields and small farmers.

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