A device for irrigation of farmland water conservancy

Abstract

This invention relates to an irrigation device for farmland. The irrigation device comprises, from bottom to top, an inlet pipe, a first sleeve, a second sleeve, an adjusting sleeve, a third sleeve, and a fourth sleeve. A rotating sleeve is provided between the first and second sleeves, and a water supply pipe is provided between the inlet pipe and the third sleeve, connecting them. A piston is slidably connected inside the adjusting sleeve. An adjusting turntable is located below the piston. Water flow from the second nozzle generates torque that drives the rotating sleeve to rotate, causing the second nozzle to spray water irrigate the entire perimeter of the irrigation device. Simultaneously, the rotating turntable rotates, causing the piston to move up and down reciprocally. This draws water into the third sleeve through the water supply pipe and sprays it out from the first nozzle. This avoids overlapping spray areas of adjacent second nozzles while utilizing the first nozzle to irrigate the areas where the second nozzles cannot reach, ensuring uniform water distribution throughout the irrigation area.

Description

Technical Field

[0001] This invention belongs to the field of agricultural machinery technology, specifically relating to a device for farmland irrigation. Background Technology

[0002] Agriculture is a major water user, accounting for approximately 62% of total economic and social water consumption this year, and exceeding 90% in some areas. Agricultural water use efficiency is low, indicating significant potential for water conservation. Vigorously developing water-saving practices in agriculture, while maintaining relatively stable agricultural water consumption, expanding irrigated areas, and improving irrigation guarantee rates are crucial measures for promoting sustainable water resource utilization, ensuring national food security, and accelerating the transformation of economic development patterns. Sprinkler irrigation and micro-irrigation are common water-saving irrigation methods.

[0003] Spray nozzles typically require corresponding rotating nozzles. The water flow impact drives the nozzles to rotate, adjusting the spray angle. Since the spray range is circular, the distance between adjacent nozzles is less than the distance between obliquely adjacent nozzles. This results in overlapping spray ranges and blind spots, causing uneven water distribution and limiting the improvement of water resource utilization. To address the shortcomings of existing technology, it is necessary to intelligently adjust the spray range based on the spray angle of the nozzles. Therefore, improvements to existing technology are required. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an irrigation device for farmland to solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a farmland irrigation device, wherein the farmland irrigation device comprises, from bottom to top, an inlet pipe, a first sleeve, a second sleeve, an adjusting sleeve, a third sleeve, and a fourth sleeve, wherein the first sleeve and the second sleeve have the same diameter, the lower end of the first sleeve is threadedly connected to the upper end of the inlet pipe, a rotating sleeve is provided between the first sleeve and the second sleeve, and two second nozzles are symmetrically distributed on the rotating sleeve, the upper and lower ends of the rotating sleeve are respectively rotatably sleeved with the lower end of the second sleeve and the upper end of the first sleeve, and multiple first connecting rods are evenly distributed between the first sleeve and the second sleeve, the lower end of the first connecting rod is fixedly connected to the first sleeve, and the upper end of the first connecting rod is fixedly connected to the second sleeve. The system utilizes a first connecting rod for support, creating a gap between the first and second sleeves to facilitate water flow from the second nozzle. The lower end of the adjusting sleeve is threadedly connected to the upper end of the second sleeve, the upper end of the adjusting sleeve is threadedly connected to the lower end of the third sleeve, and the upper end of the third sleeve is threadedly connected to the lower end of the fourth sleeve. The upper end of the fourth sleeve is covered with an end cap for sealing. Four first nozzles are evenly distributed on the side of the fourth sleeve near its lower end. The inlet pipe has a side through hole on its side, and the third sleeve has a side through hole on its side near its upper end. A water inlet pipe is connected between the inlet pipe and the third sleeve. The lower end of the water inlet pipe is connected to the side through hole of the inlet pipe, and the upper end of the water inlet pipe is connected to the side through hole of the third sleeve.

[0006] A piston is slidably connected inside the adjusting sleeve. A spring is installed between the upper side of the piston and the upper end of the adjusting sleeve. The spring force pushes the piston downward. Two guide rods are symmetrically arranged on the lower side of the piston. A ball bearing is engaged at the lower end of the guide rod. An adjusting turntable is installed below the piston. Two push plates are symmetrically arranged on the upper edge of the adjusting turntable. The upper surface of the push plate and the upper surface of the adjusting turntable form a smooth arc. The ball bearing and the push plate are in abutment, which facilitates the smooth movement of the ball bearing at the lower end of the guide rod on the upper surface of the push plate. Four second connecting rods are evenly distributed below the adjusting turntable. The upper end of the second connecting rod is fixedly connected to the adjusting turntable. A connecting end cap is fixedly attached to the lower end of the second connecting rod. The connecting end cap is fixedly connected to the upper end of the rotating sleeve. The rotation of the rotating sleeve drives the adjusting turntable to rotate.

[0007] Both the third and fourth sleeves are equipped with annular plugs and limiting rings. The limiting rings are located in the middle of the plugs, and multiple third connecting rods are evenly distributed between the limiting rings and the plugs. One end of the third connecting rod is fixedly connected to the plug, and the other end of the third connecting rod is fixedly connected to the limiting ring. A push-pull rod is fixed to the middle of the upper side of the piston. The limiting ring is slidably sleeved on the push-pull rod. Two extrusion plates are symmetrically distributed on the left and right sides inside the push rod. An arc-shaped spring is fixed to the back side of each extrusion plate. The two arc-shaped springs are staggered vertically. The arched middle part of the spring on the extrusion plate contacts the back side of the other extrusion plate. The elastic force of the spring pushes the two extrusion plates to slide outwards from the push-pull rod, increasing the friction between the push-pull rod and the extrusion plates.

[0008] Preferably, the spray direction of the second nozzle is deviated from the axis of the rotating sleeve to ensure that the second nozzle generates torque when spraying water to drive the rotating sleeve to rotate.

[0009] Preferably, the inner wall of the adjusting sleeve is provided with a limiting protrusion, and the piston is provided with a corresponding limiting groove. The piston position is limited by the limiting protrusion to prevent the piston from rotating relative to the adjusting sleeve.

[0010] The beneficial effects of this invention are as follows: When irrigating, the water flow from the second nozzle generates a torque that drives the rotating sleeve to rotate. On one hand, this adjusts the position of the second nozzle, allowing it to spray water all around the irrigation device. On the other hand, it drives the adjusting turntable to rotate, causing the guide rod to move relative to the adjusting turntable. Under the combined action of the push plate and the spring, the piston moves up and down reciprocally. This draws water into the third sleeve through the water inlet pipe and sprays it out from the first nozzle. While avoiding overlap of the spray range of adjacent second nozzles, the first nozzle is used to spray water into the dead corners of the second nozzles, ensuring uniform water spraying in the irrigation area. Attached Figure Description

[0011] Figure 1 Distribution of irrigation range of conventional irrigation devices Figure 1 ;

[0012] Figure 2 Distribution of irrigation range for conventional irrigation devices Figure 2 ;

[0013] Figure 3 This is a structural diagram of the irrigation device.

[0014] Figure 4 This is a diagram of the internal structure of the irrigation device;

[0015] Figure 5 This is a cross-sectional view of the fourth casing.

[0016] Figure 6 This is a structural diagram of a rotating sleeve;

[0017] Figure 7 To adjust the side view of the turntable;

[0018] Figure 8 for Figure 2 Partial structural diagram of section A in the middle;

[0019] Figure 9 This is a map showing the distribution of the irrigation area of ​​the irrigation device.

[0020] Numbered in the diagram: 1 Inlet pipe; 2 First sleeve; 3 Second sleeve; 4 Adjusting sleeve; 5 Third sleeve; 6 Fourth sleeve; 601 First nozzle; 7 Rotating sleeve; 701 Second nozzle; 8 First connecting rod; 9 End cap; 10 Water inlet pipe; 11 Piston; 12 Spring; 13 Guide rod; 14 Adjusting turntable; 1401 Push plate; 15 Second connecting rod; 16 Connecting end cap; 17 Push-pull rod; 18 Plug; 19 Limiting ring; 20 Third connecting rod; 21 Squeezing plate; 22 Spring. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] like Figure 3-9 As shown, an irrigation device for farmland comprises, from bottom to top, an inlet pipe 1, a first sleeve 2, a second sleeve 3, an adjusting sleeve 4, a third sleeve 5, and a fourth sleeve 6. The first sleeve 2 and the second sleeve 3 have the same diameter. The lower end of the first sleeve 2 is threadedly connected to the upper end of the inlet pipe 1. A rotating sleeve 7 is provided between the first sleeve 2 and the second sleeve 3. Two second nozzles 701 are symmetrically distributed on the rotating sleeve 7. The upper and lower ends of the rotating sleeve 7 are rotatably connected to the lower end of the second sleeve 3 and the upper end of the first sleeve 2, respectively. Multiple first connecting rods 8 are evenly distributed between the first sleeve 2 and the second sleeve 3. The lower end of the first connecting rod 8 is fixedly connected to the first sleeve 2, and the upper end of the first connecting rod 8 is fixedly connected to the second sleeve 3, providing support. A gap is left between the first sleeve 2 and the second sleeve 3 to facilitate water flow from the second nozzle 701. The lower end of the adjusting sleeve 4 is threadedly connected to the upper end of the second sleeve 3, the upper end of the adjusting sleeve 4 is threadedly connected to the lower end of the third sleeve 5, the upper end of the third sleeve 5 is threadedly connected to the lower end of the fourth sleeve 6, and the upper end of the fourth sleeve 6 is covered with an end cap 9 for sealing. Four first nozzles 601 are evenly distributed on the side of the fourth sleeve 6 near the lower end. The side of the liquid inlet pipe 1 is provided with a side through hole, and the side of the third sleeve 5 is provided with a side through hole near the upper end. A water inlet pipe 10 is provided between the liquid inlet pipe 1 and the third sleeve 5. The lower end of the water inlet pipe 10 is connected to the side through hole of the liquid inlet pipe 1, and the upper end of the water inlet pipe 10 is connected to the side through hole of the third sleeve 5.

[0023] In this embodiment, a piston 11 is slidably connected inside the adjusting sleeve 4; a spring 12 is provided between the upper side of the piston 11 and the upper port of the adjusting sleeve 4, and the spring force of the spring 12 pushes the piston 11 to slide downward. Two guide rods 13 are symmetrically arranged on the lower side of the piston 11, and a ball is engaged at the lower end of the guide rod 13. An adjusting turntable 14 is provided below the piston 11. Two push plates 1401 are symmetrically arranged on the upper edge of the adjusting turntable 14. The upper side of the push plate 1401 and the upper side of the adjusting turntable 14 form a smooth arc surface, and the ball and the push plate 1401 are in abutment, which facilitates the smooth movement of the ball at the lower end of the guide rod 13 on the upper side of the push plate 1401. Four second connecting rods 15 are evenly distributed below the adjusting turntable 14. The upper end of the second connecting rod 15 is fixedly connected to the adjusting turntable 14, and the lower end of the second connecting rod 15 is fixedly connected to the connecting end cap 16. The connecting end cap 16 is fixedly connected to the upper end of the rotating sleeve 7, and the rotating sleeve 7 is used to drive the adjusting turntable 14 to rotate.

[0024] In this embodiment, both the third sleeve 5 and the fourth sleeve 6 are provided with annular plugs 18 and limiting rings 19. The limiting rings 19 are located in the middle of the plugs 18, and multiple third connecting rods 20 are evenly distributed between the limiting rings 19 and the plugs 18. One end of the third connecting rods 20 is fixedly connected to the plugs 18, and the other end of the third connecting rods 20 is fixedly connected to the limiting rings 19. A push-pull rod 17 is fixed to the middle of the upper side of the piston 11. The limiting rings 19 are slidably sleeved on the push-pull rod 17. Two extrusion plates 21 are symmetrically distributed in the push rod 17. An arc-shaped spring piece 22 is fixed on the back side of each extrusion plate 21. The two arc-shaped spring pieces 22 are staggered vertically. The arched middle part of the spring piece 22 on the extrusion plate 21 contacts the back side of the other extrusion plate 21. The elastic force of the spring piece 22 pushes the two extrusion plates 21 to slide outward of the push-pull rod 17, increasing the friction between the push-pull rod 17 and the extrusion plates 21.

[0025] In this embodiment, the spray direction of the second nozzle 701 is deviated from the axis of the rotating sleeve 7, ensuring that the second nozzle 701 generates torque when spraying water to drive the rotating sleeve 7 to rotate.

[0026] In this embodiment, the inner wall of the adjusting sleeve 4 is provided with a limiting protrusion, and the piston 11 is provided with a corresponding limiting groove. The position of the piston 11 is limited by the limiting protrusion to prevent the piston 11 from rotating relative to the adjusting sleeve 4.

[0027] In this embodiment, during irrigation, such as Figure 1-2 As shown, when using conventional irrigation devices for irrigation, the water spray range is circular due to the rotation of the irrigation devices. When adjacent irrigation devices are too close, the distance between obliquely adjacent irrigation devices is completely irrigated, and there is an overlapping irrigation area between directly adjacent irrigation devices. When adjacent irrigation devices are too far apart, there is no overlapping irrigation area between directly adjacent irrigation devices, and there is an irrigation dead zone between obliquely adjacent irrigation devices.

[0028] like Figure 3-9 As shown, when the device is used for irrigation, the water flows through the water pipe, the liquid inlet pipe 1, and the first sleeve 2 into the rotating sleeve 7, and then sprays out from the second nozzle 701. The torque generated by the sprayed water flows drives the rotating sleeve 7 to rotate, adjusting the position of the second nozzle 701 so that the second nozzle 701 sprays water to irrigate the irrigation device in all directions.

[0029] During the rotation of the rotating sleeve 7, the adjusting turntable 14 is rotated to adjust the position of the push plate 1401. When the water spray area of ​​the second nozzle 701 is in the adjacent area, and the guide rod 13 is between the two push plates 1401, the piston 11 slides downward under the action of the spring 12. During the downward sliding of the piston 11, the friction between the extrusion plate 21 and the limiting ring 19 is used to drive the plug 18 to slide downward. When the two plugs 18 are respectively in contact with the lower edge of the third sleeve 5 and the fourth sleeve 6 and are restricted, the plug 18 in the fourth sleeve 6 blocks the first nozzle 601. At the same time, the plug 18 in the third sleeve 5 separates from the side through hole of the third sleeve 5. Then, under the action of the spring 12, the friction between the extrusion plate 21 and the limiting ring 19 is overcome, and the push rod 17 slides relative to the limiting ring 19. The piston 11 continues to slide downward to push the water in the inlet pipe 1. The water is drawn into the third sleeve 5. When the water spraying area of ​​the second nozzle 701 is located in the obliquely adjacent area, the guide rod 13 is located on the push plate 1401. As it moves to the protruding part of the push plate 1401, the guide rod 13 pushes the piston 11 to slide upward, compressing the spring 12. Using the friction between the extrusion plate 21 and the limiting ring 19, the plug 18 is driven to slide upward. When the two plugs 18 are respectively in contact with the upper edge of the third sleeve 5 and the fourth sleeve 6 and are restricted, the plug 18 in the fourth sleeve 6 separates from the first nozzle 601. At the same time, the plug 18 in the third sleeve 5 seals the side through hole of the third sleeve 5. Then, overcoming the friction between the extrusion plate 21 and the limiting ring 19, the push-pull rod 17 slides relative to the limiting ring 19. The piston 11 continues to slide upward, spraying the water in the third sleeve 5 from the first nozzle 601 to the water spraying dead corner of the second nozzle 701, ensuring that the irrigation area is sprayed evenly.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A farmland irrigation device, wherein the farmland irrigation device comprises, from bottom to top, an inlet pipe, a first sleeve, a second sleeve, an adjusting sleeve, a third sleeve, and a fourth sleeve, characterized in that: The first and second sleeves have the same diameter. The lower end of the first sleeve is threadedly connected to the upper end of the inlet pipe. A rotating sleeve is provided between the first and second sleeves, with two second nozzles symmetrically distributed on it. The upper and lower ends of the rotating sleeve are respectively rotatably sleeved to the lower end of the second sleeve and the upper end of the first sleeve. Multiple first connecting rods are evenly distributed between the first and second sleeves. The lower end of the first connecting rod is fixedly connected to the first sleeve, and the upper end of the first connecting rod is fixedly connected to the second sleeve, leaving a gap between the first and second sleeves. The lower end of the adjusting sleeve is threadedly connected to the upper end of the second sleeve. The upper end of the adjusting sleeve is threadedly connected to the lower end of the third sleeve, and the upper end of the third sleeve is threadedly connected to the lower end of the fourth sleeve. The upper end of the fourth sleeve is capped with an end cap, and four first nozzles are evenly distributed on the side of the fourth sleeve near its lower end. A side through-hole is provided on the side of the inlet pipe, and a side through-hole is provided on the side of the third sleeve near its upper end. A water inlet pipe is provided between the inlet pipe and the third sleeve, with its lower end connected to the side through-hole of the inlet pipe and its upper end connected to the side through-hole of the third sleeve. A piston is slidably connected inside the adjusting sleeve; the upper side of the piston is connected to the adjusting sleeve... A spring is installed between the upper and lower ends of the sleeve, and the spring force pushes the piston downward. Two guide rods are symmetrically arranged on the lower side of the piston, and ball bearings are engaged at the lower ends of the guide rods. An adjusting turntable is located below the piston. Two push plates are symmetrically arranged on the upper edge of the adjusting turntable. The upper surface of the push plates and the upper surface of the adjusting turntable form a smooth arc, and the ball bearings and push plates are in abutting position. Four second connecting rods are evenly distributed below the adjusting turntable. The upper ends of the second connecting rods are fixedly connected to the adjusting turntable, and the lower ends of the second connecting rods are fixedly connected to the connecting end caps, which are fixedly connected to the upper end of the rotating sleeve. The third and fourth sleeves are both equipped with It has an annular plug and a limiting ring. The limiting ring is located in the middle of the plug, and multiple third connecting rods are evenly distributed between the limiting ring and the plug. One end of the third connecting rod is fixedly connected to the plug, and the other end of the third connecting rod is fixedly connected to the limiting ring. A push-pull rod is fixed in the middle of the upper side of the piston. The limiting ring is slidably sleeved on the push-pull rod. Two extrusion plates are symmetrically distributed on the left and right sides inside the push-pull rod. An arc-shaped spring is fixed on the back side of each extrusion plate. The arched middle part of the spring on the extrusion plate contacts the back side of the other extrusion plate. The two arc-shaped springs are staggered vertically. The spray direction of the second nozzle is deviated from the axis of the rotating sleeve.

2. The irrigation device for farmland according to claim 1 is characterized in that, The inner wall of the adjusting sleeve is provided with a limiting protrusion, and the piston is provided with a corresponding limiting groove, thereby limiting the position of the piston by the limiting protrusion.

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