SU1475547A1 - Pulsed sprinkling unit - Google Patents

Abstract

The invention relates to the mechanization of irrigation by sprinkling agricultural crops and can be used on irrigation systems for pulsed irrigation. The aim of the invention is to simplify the design and increase the reliability of the pulse sprinkler. The pulse sprinkler includes a water-air tank 1, an elastic membrane 3, a shut-off element, a sprinkling head 7. The shut-off element is made in the form of a disc valve 5 with guide posts 9. The valve 5 is provided with a flexible coupling 11 with a spring and is connected to an elastic membrane 3. Elastic the membrane 3 is equipped with a disc disc 13. Under air pressure, an elastic membrane 3 with a disc disc 13 presses against the posts 9 of the disc valve 5, closing it to one to six. When the tank 1 is filled with water, the elastic membrane 3 moves down, tension is flexible with bond 11. In its tension priotkryvaets valve 5 which, under the action of tension spring falls down, opening the water outlet nozzle 7. 1 ZP f-ly, 2 ill.

Description

The invention relates to agriculture, in particular to the mechanization of irrigation by sprinkling agricultural crops, and can be used on irrigation systems for pulsed sprinkling.

The purpose of the invention is to simplify the design and increase the reliability of the pulse sprinkler.

FIG. 1 shows schematically the proposed apparatus, the closed position of the valve; in fig. 2 - the same, open position of the valve.

The pulse sprinkler contains a water-air tank 1, which is divided into two parts by a perforated vault 2 and an elastic membrane 3, a valve body 4 with a poppet valve 5, one hundred to six, and a sprinkler head 7 with a turning mechanism. The end face is a seat 8 of the valve 5. The valve 5 has guide posts 9, which are inserted into the opening 10 of the housing 4. The valve 5 by means of a flexible coupling 11, as well as a spring 12 is connected to a disk 13 that is installed in the center flexible membrane 3. A fitting 14 is installed for supplying water, and a nipple device 15 for supplying air.

The device works as follows.

Under the pressure of air, the elastic membrane 3 with its disc disk 13, through guide posts 9, presses the disk valve 5 and closes the seat 8 in the end of the stand 6. Water from the pressure pipe under pressure passes through the fitting 14 into the upper cavity of the water tank of the airless tank 1 and squeezes the elastic membrane 3 down. The water pressure keeps the valve 5 in the closed position. With further movement

0

five

0

five

0

The elastic membrane down to the perforated roof is flexible; the coupling 11 pulls up and opens the valve 5. The valve under the tension of the spring 12 and under its weight falls against the stop into the valve body, opening the stand. Under the action of compressed air, the water moves the elastic membrane to the sprinkler nozzle 7 and is sprayed. Under the action of the rotation mechanism, the nozzle rotates around an axis at an angle. As the water flow is elastic, the chamber with its disc disk 13 presses the disc valve and closes the opening of the stand. The process is repeated. The force of the tension spring is less than the pressure force of water on the valve.

Claims (2)

1. An impulse sprinkler, including a water-air tank with a separating membrane and a perforated roof, a barrel with a valve seat of a closure member, a sprinkler and a rotation mechanism, characterized in that, in order to simplify the design and improve reliability, the seat of the disc valve is horizontal, and the membrane is made with a rigid center, wherein the valve is connected to the rigid center of the membrane by a flexible bond having a length not more than the distance from the valve seat to the perforated set and equipped with a return spring. 2. An apparatus according to claim 1, characterized in that the valve has guide posts that interact when the membrane moves upward with its rigid center.