RU-2861274-C1 - SPRINKLER FOR PRECISION IRRIGATION

RU2861274C1RU 2861274 C1RU2861274 C1RU 2861274C1RU-2861274-C1

Abstract

FIELD: agriculture. SUBSTANCE: sprinkler comprises a cylindrical body with a branch pipe, a deflector configured to freely rotate in a cup. The body and the cup of the device are connected by means of oppositely located struts. The lower part of the cylindrical body is equipped with an iris diaphragm mechanism mounted in a plane-cylindrical body, providing adjustment of the passage hole diameter. A gear rim is made on the outer side surface of the plane-cylindrical body, meshed with a gear wheel transmitting rotation from a micro-stepping motor, providing rotation together with the plane-cylindrical body. The working surface of the deflector is divided into four sectors having different water discharge angles, providing a larger volume spray cloud. EFFECT: increasing the reliability and quality of operation of the device. 1 cl, 8 dwg

Inventors

Zhuravleva Larisa Anatolevna
BALABANOV VIKTOR IVANOVICH
MARTYNOVA NATALYA BORISOVNA
Myrksina Yuliya Aleksandrovna
Myakshin Nikolaj Aleksandrovich

Dates

Publication Date: 20260504
Application Date: 20250915

Claims (1)

A sprinkler for precision irrigation, comprising a cylindrical body with a branch pipe, a deflector made with the possibility of free rotation in a cup, wherein the body and the cup of the device are connected by means of oppositely located posts, characterized in that the lower part of the cylindrical body is equipped with an iris diaphragm mechanism mounted in a flat-cylindrical body, providing for the adjustment of the diameter of the passage opening, wherein on the outer side surface of the flat-cylindrical body there is a toothed crown, mated with a toothed pinion, transmitting rotation from a microstepping motor, providing rotation together with the flat-cylindrical body, wherein the working surface of the deflector is divided into four sectors having different angles of water descent, providing a larger volume of spray cloud.

Description

The invention relates to the field of agriculture, namely to technical means of irrigation. A sprinkler nozzle is known (RU Patent No. 2316946, IPC A01G 25/02 and B05B 1/18, 2008 - analogue), containing a pipeline with a nozzle, a deflector fixed at an angle on a vertical axis, which is pivotally fixed with the possibility of rotation, a sealed chamber, communicating with the pipeline by means of hollow brackets, a horizontal rod is rigidly fixed at the free end of the vertical axis, at one end of which a weather vane is fixed, and at the other end a covering plate with a flat sail is fixed, also in the horizontal rod a channel is made, ending with a mini-nozzle, located next to the covering plate, and in the upper part of the vertical axis a channel is made by means of which the channel of the horizontal rod is communicated with the sealed chamber. The disadvantages of the alternative are its complex design, low reliability, and poor irrigation quality. Furthermore, there is no automatic adjustment of the nozzle cross-section; if a different nozzle cross-section diameter is required, the entire design must be replaced. A rotary rain-forming device for sprinkler machines is known (Utility Model No. 222029. Application: 2023125534, 10/05/2023. Published: 12/06/2023, Bulletin No. 34), comprising a housing, a connecting sleeve, a branch pipe, a nozzle located between the housing and the sleeve, a deflector element consisting of convex guide plates for deflecting a liquid flow in the transverse direction. The guide plates are shaped as semicircles, the arcs of which are located above the bases at an angle from the center of rotation to the extreme part of the deflector, the lower part of which has a conical cutout for the device of rotary action when the water flow falls on the tip of the deflector. A disadvantage is the lack of ability to adjust the nozzle cross-section. Using a sprinkler with a different nozzle diameter requires replacing the nozzle. A sprinkler (Patent No. 2826309, used as a prototype) is known. It comprises a housing with a replaceable nozzle installed at the bottom, a deflector shaped like a concave bowl and positioned under the nozzle, and vertical supports. A cup with a through hole at the bottom is mounted in the lower central portion of the deflector. A rod with a pointed end at the top and a spring at the bottom is mounted inside the cup. A disadvantage of the similar device is the lack of nozzle adjustment. If a different nozzle diameter is required, a nozzle with a different flow area must be installed. Furthermore, the sprinkler deflector may not provide uniformity and quality of spray at low water pressures in the pipeline. An analysis of existing technical solutions has shown that the technical challenge in this area is the need to expand the range of tools used for irrigating agricultural crops, including precision irrigation, simple and reliable sprinklers that ensure rapid adjustment of the sprinkler nozzle cross-section, and the quality and uniformity of rainfall spray. The technical result of the invention is to increase the reliability and quality of operation of the sprinkler. In order to solve the said problem and obtain the stated technical result, a sprinkler for precision irrigation comprises a cylindrical body with a branch pipe, a deflector made with the possibility of free rotation in a cup, wherein the body and the cup of the device are connected by means of oppositely located posts, wherein the lower part of the cylindrical body is equipped with an iris diaphragm mechanism mounted in a flat-cylindrical body, providing for the adjustment of the diameter of the passage opening, wherein on the outer side surface of the flat-cylindrical body there is a toothed crown, mated with a toothed pinion, transmitting rotation from a microstepping motor, providing rotation together with the flat-cylindrical body, wherein the working surface of the deflector is divided into four sectors having different angles of water descent, providing for a larger volume of spray cloud. The proposed design ensures reliable sprinkler operation, automatic and quick adjustment of the sprinkler's flow diameter, and high-quality, uniform watering. The proposed design can be effectively used for precision irrigation. The proposed technical solution is illustrated by the following drawings: Fig. 1 - sprinkler, general view; Fig. 2 - iris diaphragm mechanism in the housing; Fig. 3 - iris diaphragm mechanism in the open position; Fig. 4 - iris diaphragm mechanism in the middle position; Fig. 5 - iris diaphragm mechanism in the closed position; Fig. 6 - deflector, general view; Fig. 7 - deflector, side view; Fig. 8 - deflector zones (top view). The proposed sprinkler (Fig. 1) includes a cylindrical body 1, in the lower part of which an iris diaphragm mechanism 2 is installed, under which a deflector 3 is located with the possibility of free rotation in a cup 4. The cup 4 is connected to the cylindrical