Water conservancy irrigation device for farmland

Abstract

The invention relates to a farmland water conservancy irrigation device which sequentially comprises a liquid inlet pipe, a first casing pipe, a second casing pipe, an adjusting casing pipe, a third casing pipe and a fourth casing pipe from bottom to top, a rotating casing pipe is arranged between the first casing pipe and the second casing pipe, and a water feeding pipe is arranged between the liquid inlet pipe and the third casing pipe. The liquid inlet pipe is communicated with the third sleeve through a water feeding pipe; a piston is slidably connected into the adjusting sleeve. An adjusting rotating disc is arranged below the piston, water flow is sprayed out from a second nozzle, generated torque drives a rotating sleeve to rotate, and the second nozzle sprays water around the irrigation device in all directions for irrigation; on the other hand, an adjusting rotary disc is driven to rotate, so that a driving piston moves up and down in a reciprocating mode, on one hand, water is pumped into a third sleeve through a water feeding pipe and sprayed out from first nozzles, and water spraying irrigation is conducted on water spraying dead angles of the second nozzles through the first nozzles while water spraying ranges of the adjacent second nozzles are prevented from being overlapped; and uniform water spraying in a water-spraying irrigation area is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural implements, and particularly relates to a farmland water conservancy irrigation device. Background Art

[0002] Agriculture is a major water user. In recent years, agricultural water consumption accounts for about 62% of the total water consumption of the economic society, and in some areas it is over 90%. The efficiency of agricultural water use is not high, and there is great potential for water conservation. Vigorously developing agricultural water conservation, expanding the irrigation area while keeping the agricultural water consumption basically stable, and improving the irrigation guarantee rate are important measures to promote the sustainable utilization of water resources, ensure national food security, and accelerate the transformation of the economic development mode. Among them, sprinkler irrigation and micro-irrigation are common water-saving irrigation methods. The spray pipe generally requires a corresponding rotating sprinkler head. The water flow impact drives the sprinkler head to rotate to adjust the spraying angle. Since the spraying range is circular, the distance between adjacent sprinkler heads is less than the distance between diagonally adjacent sprinkler heads, and there are overlapping and blind areas in the spraying range, resulting in uneven water spraying distribution, which limits the improvement of water resource utilization rate. In view of the deficiencies of the prior art, it is necessary to intelligently adjust the spraying range according to the spraying angle of the sprinkler head. Therefore, the prior art needs to be improved. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a farmland water conservancy irrigation device to solve the above problems.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a farmland water conservancy irrigation device, which from bottom to top is successively an inlet pipe, a first sleeve, a second sleeve, an adjusting sleeve, a third sleeve, and a fourth sleeve. The diameters of the first sleeve and the second sleeve are equal. The lower port of the first sleeve is threadedly fitted and connected to the upper port of the inlet pipe. A rotating sleeve is arranged between the first sleeve and the second sleeve. Two second nozzles are symmetrically distributed on the rotating sleeve. The upper and lower ends of the rotating sleeve are respectively rotatably sleeved on the lower port of the second sleeve and the upper port of the first sleeve. A plurality of 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 first connecting rods are used for support, so that there is a gap between the first sleeve and the second sleeve, facilitating the water flow to spray out from the second nozzles. The lower port of the adjusting sleeve is threadedly fitted and connected to the upper port of the second sleeve, the upper port of the adjusting sleeve is threadedly fitted and connected to the lower port of the third sleeve, the upper port of the third sleeve is threadedly fitted and connected to the lower port of the fourth sleeve, and the upper port 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 the lower part. A side through hole is arranged on the side of the inlet pipe, and a side through hole is arranged on the side of the third sleeve near the upper part. An upper water pipe is arranged between the inlet pipe and the third sleeve. The lower port of the upper water pipe is communicated with the side through hole of the inlet pipe, and the upper port of the upper water pipe is communicated with the side through hole of the third sleeve.

[0005] A piston is slidably connected inside the adjusting sleeve; a spring is arranged between the upper side of the piston and the upper port of the adjusting sleeve, and the elastic force of the spring is used to push the piston to slide downward. Two guide rods are symmetrically arranged on the lower side of the piston, and balls are clamped at the lower ends of the guide rods. An adjusting turntable is arranged below the piston. Two push plates are symmetrically arranged on the upper side edge of the adjusting turntable. The upper side surface of the push plate and the upper side surface of the adjusting turntable form a smooth arc surface, which facilitates the stable movement of the balls at the lower ends of the guide rods on the upper side of the push plate. 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 fixed with connecting end caps. The connecting end caps are fixedly connected to the upper end of the rotating sleeve, and the rotation of the rotating sleeve drives the rotation of the adjusting turntable.

[0006] An annular plug and a limiting ring are arranged inside both the third sleeve and the fourth sleeve. 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 fixedly connected to the middle of the upper side of the piston. The limiting ring is slidably sleeved on the push-pull rod. Two pressing pieces are symmetrically distributed on the left and right inside the push-pull rod. An arc-shaped elastic piece is fixed on the back side of each pressing piece. The middle of the arched elastic piece on the pressing piece contacts the back side of the other pressing piece, and the elastic force of the elastic piece is used to push the two pressing pieces to slide outward from the push-pull rod, increasing the friction force between the push-pull rod and the pressing pieces.

[0007] Preferably, the spraying direction of the second spray nozzle deviates from the axis of the rotating sleeve to ensure that the torque generated when the second spray nozzle sprays water drives the rotation of the rotating sleeve.

[0008] Preferably, a limiting protrusion is arranged on the inner side wall of the adjusting sleeve, and a limiting groove is correspondingly arranged on the piston. The position of the piston is limited by the limiting protrusion to prevent the piston from rotating relative to the adjusting sleeve.

[0009] The beneficial effects of the present invention are as follows: When the present invention is used for irrigation, the water flow sprays out from the second spray nozzle, and the generated torque drives the rotation of the rotating sleeve. On the one hand, the position of the second spray head is adjusted to enable the second spray head to spray water for irrigation in all directions around the irrigation device; on the other hand, it drives the rotation of the adjusting turntable, enabling the guide rod to move relative to the adjusting turntable, and driving the piston to reciprocate up and down under the combined action of the push plate and the spring. On the one hand, water is pumped into the third sleeve through the upper water pipe and sprayed out from the first spray nozzle. While avoiding the overlap of the spraying ranges of adjacent second spray nozzles, the first spray nozzle is used to spray water for irrigation in the water spraying dead angle of the second spray nozzle to ensure uniform water spraying in the water spraying irrigation area. Description of the Drawings

[0010] Figure 1 Irrigation range distribution of a conventional irrigation device Figure 1 ; Figure 2For the irrigation range distribution of a conventional irrigation device Figure 2 ; Figure 3 It is the main structure diagram of the irrigation device; Figure 4 It is the internal structure diagram of the irrigation device; Figure 5 It is the cross-sectional view of the fourth sleeve; Figure 6 It is the structure diagram of the rotating sleeve; Figure 7 It is the side view of the adjusting turntable; Figure 8 It is Figure 2 The partial structure diagram of part A in Figure 9 It is the irrigation range distribution diagram of this irrigation device.

[0011] Reference numerals in the figure: 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 cover; 10 upper water pipe; 11 piston; 12 spring; 13 guide rod; 14 adjusting turntable; 1401 push plate; 15 second connecting rod; 16 connecting end cover; 17 push-pull rod; 18 plug; 19 limiting ring; 20 third connecting rod; 21 pressing piece; 22 elastic piece. Specific embodiments

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments: As Figure 3 - 9As shown in the figure, a farmland water conservancy irrigation device, the farmland water conservancy irrigation device from bottom to top is a liquid inlet pipe 1, a first sleeve 2, a second sleeve 3, an adjustment sleeve 4, a third sleeve 5, and a fourth sleeve 6 in sequence. Among them, the diameters of the first sleeve 2 and the second sleeve 3 are equal. The lower port of the first sleeve 2 is threadedly connected to the upper port of the liquid inlet pipe 1. A rotating sleeve 7 is arranged 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 respectively rotatably sleeved with the lower port of the second sleeve 3 and the upper port of the first sleeve 2. A plurality of 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. The first connecting rod 8 is used for support, so that there is a gap between the first sleeve 2 and the second sleeve 3, which is convenient for water flow to spray out from the second nozzle 701. The lower port of the adjustment sleeve 4 is threadedly connected to the upper port of the second sleeve 3, the upper port of the adjustment sleeve 4 is threadedly connected to the lower port of the third sleeve 5, the upper port of the third sleeve 5 is threadedly connected to the lower port of the fourth sleeve 6, and the upper port 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. A side through hole is arranged on the side of the liquid inlet pipe 1, and a side through hole is arranged on the side of the third sleeve 5 near the upper end. An upper water pipe 10 is arranged between the liquid inlet pipe 1 and the third sleeve 5. The lower port of the upper water pipe 10 is communicated with the side through hole of the liquid inlet pipe 1, and the upper port of the upper water pipe 10 is communicated with the side through hole of the third sleeve 5.

[0013] In this embodiment, a piston 11 is slidably connected in the adjustment sleeve 4; a spring 12 is arranged between the upper side of the piston 11 and the upper port of the adjustment sleeve 4. The elastic force of the spring 12 is used to push the piston 11 to slide downward. Two guide rods 13 are symmetrically arranged on the lower side of the piston 11. The lower end of the guide rod 13 is clamped with a ball. An adjustment turntable 14 is arranged below the piston 11. Two push plates 1401 are symmetrically arranged on the upper side edge of the adjustment turntable 14. The upper side surface of the push plate 1401 and the upper side surface of the adjustment turntable 14 form a smooth arc surface, which is convenient for the ball at the lower end of the guide rod 13 to move smoothly on the upper side of the push plate 1401. Four second connecting rods 15 are evenly distributed below the adjustment turntable 14. The upper end of the second connecting rod 15 is fixedly connected to the adjustment turntable 14, and the lower end of the second connecting rod 15 is fixed with a connecting end cap 16. The connecting end cap 16 is fixedly connected to the upper end of the rotating sleeve 7. The rotation of the rotating sleeve 7 drives the adjustment turntable 14 to rotate.

[0014] In this embodiment, annular plugs 18 and limiting rings 19 are provided inside both the third sleeve 5 and the fourth sleeve 6. The limiting ring 19 is located in the middle of the plug 18, and a plurality of third connecting rods 20 are evenly distributed between the limiting ring 19 and the plug 18. One end of the third connecting rod 20 is fixedly connected to the plug 18, and the other end of the third connecting rod 20 is fixedly connected to the limiting ring 19. A push-pull rod 17 is fixedly connected to the middle of the upper side of the piston 11. The limiting ring 19 is slidably sleeved on the push-pull rod 17. Two pressing pieces 21 are symmetrically distributed left and right inside the push rod 17. An arc-shaped elastic piece 22 is fixedly connected to the back side of each pressing piece 21. The middle of the arched elastic piece 22 on the pressing piece 21 contacts the back side of the other pressing piece 21. The elastic force of the elastic piece 22 is used to push the two pressing pieces 21 to slide outward of the push-pull rod 17, increasing the friction between the push-pull rod 17 and the pressing piece 21.

[0015] In this embodiment, the spraying direction of the second spray nozzle 701 deviates from the axis of the rotating sleeve 7 to ensure that the torque generated when the second spray nozzle 701 sprays water drives the rotating sleeve 7 to rotate.

[0016] In this embodiment, a limiting protrusion is provided on the inner side wall of the adjusting sleeve 4, and a limiting groove is correspondingly provided on the piston 11. 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.

[0017] In this embodiment, when irrigation is carried out, as Figure 1 - 2 shown, when using a conventional irrigation device for irrigation, due to the rotation of the irrigation device, the spraying range is circular. When the distance between adjacent irrigation devices is too close, after the distance between the obliquely adjacent irrigation devices is completely irrigated, there is a repeated irrigation area between the directly adjacent irrigation devices. When the distance between adjacent irrigation devices is too far, there is no repeated irrigation area between the directly adjacent irrigation devices, and there is an irrigation dead angle between the obliquely adjacent irrigation devices; As Figure 3 - 9 shown, when using this device for irrigation, 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 spray nozzle 701. The torque generated by the sprayed water flow drives the rotating sleeve 7 to rotate, adjusting the position of the second spray head 701 so that the second spray head 701 sprays water for irrigation in all directions around the irrigation device; During the rotation of the rotating sleeve 7, the adjusting turntable 14 is driven to rotate to adjust the position of the push plate 1401. When the water spraying area of the second nozzle 701 is located in the directly adjacent area and the guide rod 13 is located between the two push plates 1401, under the elastic force of the spring 12, the piston 11 slides downward. During the downward sliding of the piston 11, by using the frictional force between the pressing piece 21 and the limiting ring 19, the plug 18 is driven to slide downward. When the two plugs 18 respectively contact and are limited by the lower edges of the third sleeve 5 and the fourth sleeve 6, 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 is separated from the side through hole of the third sleeve 5. Then, under the elastic force of the spring 12, overcoming the frictional force between the pressing piece 21 and the limiting ring 19, the push-pull rod 17 slides relative to the limiting ring 19, and the piston 11 continues to slide downward to pump the water in the liquid inlet pipe 1 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 convex part of the push plate 1401, the guide rod 13 pushes the piston 11 to slide upward, compressing the spring 12. By using the frictional force between the pressing piece 21 and the limiting ring 19, the plug 18 is driven to slide upward. When the two plugs 18 respectively contact and are limited by the upper edges of the third sleeve 5 and the fourth sleeve 6, the plug 18 in the fourth sleeve 6 is separated from the first nozzle 601. At the same time, the plug 18 in the third sleeve 5 blocks the side through hole of the third sleeve 5. Then, overcoming the frictional force between the pressing piece 21 and the limiting ring 19, the push-pull rod 17 slides relative to the limiting ring 19, and the piston 11 continues to slide upward to spray the water in the third sleeve 5 from the first nozzle 601 to the water spraying dead angle of the second nozzle 701, ensuring uniform water spraying in the irrigation area.

[0018] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A farmland water conservancy irrigation device, which comprises, from bottom to top, a liquid inlet pipe, a first sleeve, a second sleeve, an adjustment sleeve, a third sleeve, and a fourth sleeve, characterized in that: The first sleeve and the second sleeve have the same diameter, the lower port of the first sleeve is threadedly connected with the upper port of the liquid inlet pipe, a rotating sleeve is arranged between the first sleeve and the second sleeve, 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 port of the second sleeve and the upper port of the first sleeve, a plurality of 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 with the first sleeve, and the upper end of the first connecting rod is fixedly connected with the second sleeve, so that a gap is left between the first sleeve and the second sleeve, and the lower end of the adjusting sleeve The port is threadedly connected to the upper port of the second sleeve, the upper port of the adjusting sleeve is threadedly connected to the lower port of the third sleeve, the upper port of the third sleeve is threadedly connected to the lower port of the fourth sleeve, the upper port of the fourth sleeve is covered with an end cover, and four first nozzles are evenly distributed on the side of the fourth sleeve near the lower end, the side of the liquid inlet pipe is provided with a side through hole, the side of the third sleeve is provided with a side through hole near the upper end, and an upper water pipe is provided between the liquid inlet pipe and the third sleeve, the lower port of the upper water pipe is connected to the side through hole of the liquid inlet pipe, and the upper port of the upper water pipe is connected to the side through hole of the third sleeve.

2. The device for farmland irrigation according to claim 1 is characterized in that: A piston is slidably connected in the adjusting sleeve; a spring is arranged between the upper side of the piston and the upper end of the adjusting sleeve, and the elastic force of the spring is used to push the piston to slide downward; two guide rods are symmetrically arranged on the lower side of the piston, and balls are clamped at the lower ends of the guide rods; an adjusting dial is arranged below the piston, and two push plates are symmetrically arranged on the upper edge of the adjusting dial, and the upper side surfaces of the push plates and the upper side surfaces of the adjusting dial form a smooth arc surface; four second connecting rods are evenly distributed below the adjusting dial, and the upper ends of the second connecting rods are fixedly connected to the adjusting dial, and the lower ends of the second connecting rods are fixedly provided with a connecting end cover, and the connecting end cover is fixedly connected to the upper end of the rotating sleeve.

3. The farmland irrigation device according to claim 1 is characterized in that: The third sleeve and the fourth sleeve are both provided with an annular plug and a limit ring, the limit ring is located in the middle of the plug, and a plurality of third connecting rods are evenly distributed between the limit 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 limit ring, a push-pull rod is fixed to the middle part of the upper side of the piston, the limit ring is slidably sleeved on the push-pull rod, and two extrusion plates are symmetrically distributed on the left and right sides of the push rod, each extrusion plate is fixed with an arc-shaped spring plate on the back side, and the arched middle part of the spring plate on the extrusion plate contacts the back side of another extrusion plate.

4. The device for farmland irrigation according to claim 1 is characterized in that: The spraying direction of the second nozzle deviates from the axis of the rotating sleeve.

5. The farmland irrigation device according to claim 1 is characterized in that: The inner side wall of the adjusting sleeve is provided with a limiting protrusion, and the piston is correspondingly provided with a limiting groove, and the position of the piston is limited by the limiting protrusion.

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