RU2347359C2 - Device for automatic spraying - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: device for automatic spraying consists of supplying pipeline with controlled rod, of gate valve and valves for water supply and of evaporating chute fastened on pivot. A magnetic latch is installed at one end of the evaporating chute, while on the other end there is installed a counterweight with a regulated position. An overflow sleeve with regulated height of overflow is assembled in the evaporating chute. Also the controlled rod of the gate valve is set in the evaporating chute. One of the valves for water supply is arranged over the evaporating chute, while the other one is located directly at the output of the device. The overflow sleeve of the evaporating chute is equipped with the second gate valve, controlled with the rod.

EFFECT: increased safety level of device units, reduced metal consumption and fabricating costs.

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Description

The invention relates to land reclamation, in particular to irrigated agriculture.

A device for automatic irrigation (irrigation) is known, which includes a supply tank with a siphon installed in it at the actuation mark, a starting tank mounted on a hinge and fixed in its initial position by a latch controlled by an evaporation tray (SU 1523123 A1, 11.23.1989).

Another device for automatic irrigation is known, including a supply tank with a siphon installed in it, a starting tank with a drive to return it to its original position and an evaporation tray (RU 2187927 C2, 08.27.2002).

However, these devices have a supply tank that limits the time of irrigation, as well as intermediate links that affect the reliability of operation, large dimensions and metal consumption.

The technical result achieved by the implementation of the claimed invention is to increase the level of reliability of the links of the device, reducing the metal consumption and manufacturing cost.

The specified technical result is achieved in that the device for automatic irrigation, comprising a supply line with a controlled stem, a shut-off valve and valves for supplying water, an evaporation tray mounted on a hinge, with a magnetic latch at one end and a counterweight with an adjustable position at the other end, an overflow pipe with an adjustable overflow height is installed in the evaporation tray, according to the invention, a controlled shut-off valve stem is placed in the evaporation tray, one of the valve a water supply tray mounted above the evaporator, and the other directly to the output device, wherein the overflow tube evaporative tray provided with a second shut-off valve, controlled by a rod.

The drawing shows the proposed device for automatic irrigation.

The device for automatic irrigation contains an evaporation tray 1, fixed pivotally. The evaporation tray 1 through the stem 6 of the check valve 2 provides for turning on and off the water supply to the irrigation system 5. Also, the device has a tap 3 for supplying water to the evaporation tray 1, on which a counterweight 4 is fixed, which makes it possible to adjust the water supply and thereby set the time watering period. A drain pipe 7 with an adjustable drain height, a valve 8 and a stem 9. A valve 8 of the drain pipe eliminates the drainage of water from the evaporator 1 during irrigation. The supply line 10 with a check valve 2. Magnetic latch 11 provides a reliable fixation of the evaporation tray 1, eliminating false operation, i.e. rotation of the evaporation tray due to counterweight 4.

In the initial position, the evaporation tray 1 is fixed by a magnetic latch 11 rotated about an axis by 10 degrees. Water supply through the check valve 2 does not occur, as it is closed. In the irrigation system, water supply through the valve 5 and through the valve 3 in the evaporation tray 1 also does not occur.

The device operates as follows.

The water in the evaporation tray 1 evaporates and reduces weight, while reducing the moment of the weight of water. The total moment of attraction of the magnetic latch 11 and the water becomes insufficient to hold the evaporation tray 1 in its original position. At this point, the tray 1 rotates counterclockwise by 10-15 degrees due to the counterweight 4, which leads to a shift in the center of gravity of the weight of water closer to the axis of rotation. This leads to the fact that the moment of resistance to rotation decreases and facilitates the clear opening of the check valve 2 using the stem 6. The check valve 2 opens and water is supplied to the irrigation system through valve 5. Water flows through the valve 3 to the evaporation tray 1. Water entering the evaporation tray 1 through the faucet 3 cannot flow out through the drain pipe 7, since valve 8 is closed. This ensures that a certain irrigation time is set. After filling the evaporation tray 1 with water, it rotates clockwise 10-15 degrees. When turning, the center of gravity of the water shifts to the right (see drawing), which increases the moment of rotation of the tray due to the increase in the shoulder of the center of gravity of the water, which contributes to the accelerated rotation and clear fixation of the evaporation tray 1 in the initial position. When the evaporation tray 1 is rotated, the stem 6 of the non-return valve 2 lowers and the non-return valve 2 shuts off the water supply. And the stem 9 of the drain tube 7 opens the valve 8, and excess water flows out. The remaining amount of water provides a predetermined period of time between irrigation.

The device takes its initial state and is ready for the next watering cycle. The proposed device provides watering in the required quantity and specified time and depends only on the settings of the tap 3 for supplying water to the evaporation tray 1.

Claims (1)

A device for automatic irrigation, comprising a supply line with a controlled stem, a shut-off valve, and valves for supplying water, an evaporation tray mounted on a hinge, a magnetic latch installed at one end, and a counterweight with an adjustable position at the other end, an overflow nozzle is installed in the evaporation tray with adjustable overflow height, characterized in that the controlled shut-off valve stem is located in the evaporation tray, one of the water supply valves is installed above the evaporation tray, and the other directly at the outlet of the device, and the overflow pipe of the evaporation tray is equipped with a second shutoff valve controlled by a rod.