RU2054245C1 - Drop irrigation device - Google Patents

Abstract

FIELD: agriculture; watering devices. SUBSTANCE: device has cylindrical bedframe 1 with inlet and outlet holes. Fitted for movement in outlet hole 3 is spring-loaded valve 4. Device has also elastic cup 5 embracing the bedframe. The latter has in its middle portion inner partition 10 with hole 9. Ring 11 is installed on partition 10. Upper part of valve 4 is passed through hole 9 in partition 10 and is rigidly connected with ring 11. Middle part of valve is made in form of truncated cone for contact with hole 9 in partition 10. EFFECT: enlarged operating capabilities. 3 cl, 6 dwg

Description

 The invention relates to agricultural machinery, and in particular to devices for irrigation of crops by drip irrigation.

A device for drip irrigation is known, comprising a housing with inlet and outlet openings, a valve is installed in the outlet, in the saddle of which a groove is made [1]
The closest in technical essence and the achieved result to the invention is a dropper containing a housing with inlet and outlet openings, in which a movable rod is located, rigidly connected to the membrane device and the valve, the membrane device is made in the form of two membranes installed in the zones of the inlet and outlet while the membrane installed in the area of the inlet is spring-loaded, and the outlet and inlet are made with the possibility of interconnected changes in their cross sections by moving rod [2]
However, this device is relatively complex: at the time of water supply and its cessation, dirt inevitably enters the chambers through the hollow pipe through slots, openings, since a pumping effect occurs when the hole interacts with the valve.

 The aim of the invention is to simplify the design, eliminating the ingress of dirt into the device and reducing the size.

 This is achieved by the fact that the drip irrigation device containing a cylindrical skeleton with inlet and outlet openings, in which the spring-loaded valve is movably arranged, is provided with an elastic cuff that covers the outlet openings by enclosing the skeleton, which in its middle part has an internal partition with an aperture on which is installed ring, the valve with its upper part is passed through the opening of the partition and rigidly fastened to the ring, the middle part of the valve is made in the form of a truncated cone with the possibility of contact vany with a partition hole.

 On the bottom of the valve, toothed rails can be provided along the axis of the valve.

 Toothed rails can be made helical in the form of a blade.

 Providing the device with an elastic cuff, which is located on the outer cylindrical surface of the core, closing the outlet openings, provides water outlet from the pipeline with minimal overpressure inside the device, restricts water passage at maximum pressure, preventing the penetration of various elements from the outside into the device. The elastic cuff can be easily replaced with a new (other) cuff, since it is held on the skeleton due to only elastic forces, and one side of it is made in the form of a reinforced collar, which provides a reliable connection of the skeleton to the pipeline and the cuff adjoins the skeleton. Replacing the cuff is not difficult. The execution of the middle part of the valve in the form of a truncated body with the ability to contact the surface of the baffle hole provides a steady passage of the amount of water to the outlet when the pressure in the pipeline changes by self-regulation. This is important when changing the location of devices in the same pipeline at different levels to the horizon, i.e. watering on slopes, mountainous terrain, etc.

 The presence of a ring located on the partition, rigidly connected with the upper part of the valve, ensures that water flows out of the device through the opening of the partition and closes these openings in the absence of excess pressure in the pipeline at overpressure in the device. The implementation on the bottom of the valve gear rails eliminates sticking and jamming of the valve in the frame. The execution of the guides helical excludes the adhesion of the valve to the partition, increasing its performance.

 In FIG. 1 shows a device, a General view in section; in FIG. 2 valve side view; in FIG. 3 the same plan; in FIG. 4 skeleton, side view, in section; in FIG. 5 cuff, side view, in section; in FIG. 6 ring, plan and section.

 The drip irrigation device contains a cylindrical skeleton 1 with holes: input 2 and output 3.

 A valve 4 with a spring 5 is movably located in the skeleton. The device is equipped with a cuff 6 located on the cylindrical surface of the skeleton 1 and covering the outlet 3. The cuff 6 is made in the form of a cylinder with a reinforced shoulder 7, which firmly holds the cuff on the skeleton and presses the skeleton tightly against the walls pipeline 8.

 In its middle part, the skeleton has a baffle 10 internal to the holes 9, on which a movable ring is installed 11. The valve 4 is passed through its upper part through the bore 9 of the baffle 10 and is rigidly fastened to the ring 11, the middle part of the valve is made in the form of a truncated cone with the possibility of contact with the walls of the holes 9 of the partition 10. On the lower part of the valve 4 there are toothed guides 12 located along the axis of the valve 4. The guides can be helical in the form of a blade.

 On one side, the core has a flange 13 for connection with a pipe 8, which is pressed on the outside by a shoulder 7 through a washer 14. On the opposite side, the core is sealed with a cover 15. Valve 4 has an upper 16 and a middle conical 17 part.

 The device operates as follows. A slight overpressure in the pipe 8 is transmitted sequentially to the valve 4, the ring 11 and the spring 5. In this case, the ring 11 moves away from the partition 10, forming a free space between the partition and the ring. Through the outlet 3, water squeezes the cuff 6 from the cylindrical surface of the core and enters the environment. With a further increase in pressure in the pipeline 8, the space between the cone-shaped part 17 of the valve 4 and the opening of the partition 9 decreases, thereby increasing the resistance to water passage.

 In addition, the compressible spring 5 also increases the resistance. The water supply is gradually equalized, stabilization sets in. There may come a moment at the maximum pressure in the pipeline 8, at which the flow of water through the outlet 3 will stop, since the conical surface 17 of the valve 4 will be pressed firmly against the surface of the opening 9 of the partition 10. Extraneous elements from the external environment do not occur, since with any change the pressure in the pipe 8 instantly overlaps all openings for the passage of water without pumping effect.

 If necessary, the proposed device allows you to freely replace individual parts with new ones, it is made with minimal dimensions, which is important when placing the irrigation system in the soil, when growing crops.

Claims (3)

 1. A DROP IRRIGATION DEVICE, including a cylindrical skeleton with inlet and outlet openings, in which a spring-loaded valve is movably located, characterized in that the device is provided with an elastic cuff covering the skeleton and covering the outlet, and the skeleton has an internal partition with an opening and a partition installed on it a ring rigidly fastened to the valve, the middle part of which is made in the form of a truncated cone and with the possibility of contacting with the opening of the partition.  2. The device according to claim 1, characterized in that on the lower part of the valve there are gear rails along the axis of the valve.  3. The device according to claims 1 and 2, characterized in that the guides are helical in the form of a blade.

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