Siphoning type automatic irrigation device

Abstract

The invention discloses a siphon type automatic irrigation device, which comprises a siphon tube, the water inlet end of the siphon tube is located under the water surface to be taken, and the water outlet end is located on the area to be irrigated; the water outlet end is connected with an air extraction device; It includes a water stopper arranged on the vertical pipe at the highest point of the siphon, and a convex arm is arranged on the top of the water stopper; a groove matching the convex arm on the waterstop is arranged on the cam of the timer, and a cantilever is provided on one side of the convex arm. The cantilever is hinged on the timer base, the other side of the protruding arm is provided with a spring, and the end of the spring is fixed on the timer base. The invention can start irrigation through the air pumping device, and the irrigation time can be set in advance according to the irrigation needs. When the irrigation time is up, the timer automatically triggers the water cut-off switch, and the air enters the siphon, destroys the siphon, and the irrigation can be automatically terminated; automatic shutdown can be realized. Water saving, labor-saving, preventing farmers from artificially opening irrigation on the concrete agricultural canal to damage the agricultural canal and waste water resources; the irrigation position can be adjusted at will, and a siphon can be realized to control the irrigation of multiple farmlands, reducing the number of fixed irrigation gates in the agricultural canal, economical convenient.

Description

technical field [0001] The invention relates to a water conservancy water intake device, in particular to a siphon type automatic irrigation device. Background technique [0002] In the irrigation area of ​​our country, many of the gates on the agricultural canals are very simple, and some gates are still formed by farmers destroying the canals. When they are blocked, soil is taken to seal them, causing great damage to the canals. However, due to the large number of gates, manual operation is required every time the water is released and closed, which is time-consuming and labor-intensive. Blocking the gate with mud blocks is also easy to cause lax blocking and waste of water resources. Although there are also some branch canal water intakes that use plastic pipes to draw water, many of these plastic pipes have no valves, which is inconvenient to block and endangers the normal operation of the canal. [0003] In Japan, the agricultural canals in some irrigation areas have ...

AI Technical Summary

Problems solved by technology

If it is applied to the opening and closing control of the gate, the input-output ratio will be too large

Low investment, simple installation, and automatic gates that can be mass-produced, there is no relevant research at present

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