Grassland irrigation device for grass and light complementation

Abstract

The utility model discloses a grassland irrigation device for grassland-light complementation, relates to the technical field of grassland-light complementation systems, and aims to solve the technical problem that the current irrigation device is inconvenient to carry out variable irrigation on water source demand quantity according to different areas of grassland under a photovoltaic panel. The irrigation pipeline is composed of the first rectangular pipe, the second rectangular pipe, the third rectangular pipe and the fourth rectangular pipe, and the first rectangular pipe, the second rectangular pipe, the third rectangular pipe and the fourth rectangular pipe are sequentially sleeved from outside to inside. And the pipe diameters of the connecting pipes between the first rectangular pipe and the second rectangular pipe, between the second rectangular pipe and the third rectangular pipe and between the third rectangular pipe and the fourth rectangular pipe are sequentially reduced, and the water pressure is gradually reduced due to the reduction of the pipe diameters of the connecting pipes, so that the water pressure in the first rectangular pipe, the second rectangular pipe, the third rectangular pipe and the fourth rectangular pipe is also gradually reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of grass-light complementary systems, and more specifically, to a grassland irrigation device for grass-light complementary systems. Background Technology

[0002] The solar-grass hybrid system is an ecological agricultural model that combines photovoltaic power generation with forage planting. By planting forage under photovoltaic panels, it achieves a three-dimensional agricultural benefit of "power generation on the panels, grass planting under the panels, and comprehensive utilization." This not only promotes a virtuous cycle in the livestock ecosystem but also provides local villagers with a new way to escape poverty and become wealthy. Through the three-dimensional land use model of "photovoltaics + forage planting + green livestock farming," it creates a green ecological pasture with "solar power above and livestock farming below, and solar-livestock complementarity," fully expanding the application scenarios of "photovoltaics +," achieving efficient land use, significantly increasing output and added value, and strongly promoting the continuous growth of livestock farmers' income. In the solar-grass hybrid system, irrigation devices are usually required to ensure the normal growth of forage. The irrigation devices mainly consist of a rainwater collection structure and irrigation pipelines. The rainwater collection structure can collect and utilize rainwater, and then the irrigation pipelines are arranged on the photovoltaic supports. Water pumps then transport the water from the rainwater collection structure to the irrigation pipelines, which uniformly irrigate the grassland under the photovoltaic panels.

[0003] Existing irrigation devices typically use evenly spaced sprinklers to achieve uniform irrigation of grasslands. In a solar-grass hybrid system, the grass growing under the photovoltaic panels faces complex environmental constraints. The grassland is affected by the shading of the photovoltaic panels, resulting in high light intensity around the perimeter, rapid water evaporation, and a higher water requirement for irrigation. Conversely, the central area is under constant shade, with low light intensity, slow water evaporation, and a lower water requirement. Traditional irrigation systems only focus on water pressure balance and uniform irrigation. If a uniform water volume is used, insufficient water in the brightly lit peripheral areas may cause leaf wilting, while excessive water in the central area may lead to root hypoxia, which is detrimental to the healthy growth of the grass and wastes water resources. Therefore, we propose a grassland irrigation device for solar-grass hybrid systems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a grassland irrigation device for grass-photovoltaic complementary systems, so as to solve the technical problem that the current irrigation device is not convenient for variable irrigation based on the water demand of different areas of the grassland under the photovoltaic panel.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a grassland irrigation device for grass-photovoltaic complementary systems, comprising a photovoltaic support, a photovoltaic panel arranged on the top of the photovoltaic support, a rainwater collection structure arranged at the bottom of the photovoltaic support, a water pump arranged on the water storage tank of the rainwater collection structure, an installation frame arranged inside the photovoltaic support, and an irrigation pipeline arranged at the bottom of the installation frame. The irrigation pipeline is composed of a first rectangular tube, a second rectangular tube, a third rectangular tube, and a fourth rectangular tube, which are sequentially nested from the outside to the inside. Two sets of connecting pipes are symmetrically connected between the first and second rectangular tubes, the second and third rectangular tubes, and the third and fourth rectangular tubes. The diameter of the connecting pipes between the first and second rectangular tubes, the second and third rectangular tubes, and the third and fourth rectangular tubes decreases sequentially from the outside to the inside. Several sets of spraying components are equidistantly arranged at the bottom of the first, second, third, and fourth rectangular tubes.

[0006] The connecting pipe includes a straight pipe section and a connecting section, with the connecting section arranged at both ends of the straight pipe section.

[0007] Preferably, a T-shaped pipe is arranged at the top of the first rectangular tube, and the two sets of output ports of the T-shaped pipe are symmetrically connected to the first rectangular tube. The input port of the T-shaped pipe is connected to the output port of the water pump through a flexible hose, and the input port of the water pump is connected to the output port of the water storage tank of the rainwater collection structure through a conduit.

[0008] Preferably, the spraying assembly includes a connecting pipe, a pressure compensation box, and a nozzle, wherein the connecting pipe is disposed at the top opening of the pressure compensation box, and the nozzle is disposed at the bottom opening of the pressure compensation box.

[0009] Preferably, a circular sleeve is arranged at the bottom of the pressure compensation box, and several sets of circular holes are equally spaced around the circumference of the circular sleeve. A pressure ring is arranged at the bottom of the circular sleeve, and a rubber pad is arranged on the side opposite to the circular sleeve to the pressure ring.

[0010] Preferably, the sleeve and the pressure ring are symmetrically arranged with several sets of welding blocks around their circumference, and fixing bolts are arranged between the symmetrical welding blocks on the sleeve and the pressure ring.

[0011] Preferably, the bottom of the sleeve is provided with an arc-shaped groove, and the top of the pressure ring is provided with an annular protrusion.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The irrigation pipeline of this utility model is composed of a first rectangular pipe, a second rectangular pipe, a third rectangular pipe, and a fourth rectangular pipe. These four rectangular pipes are sequentially nested from the outside in. The first rectangular pipe corresponds to the perimeter of the grass, and the fourth rectangular pipe corresponds to the center of the grass. Furthermore, the first and second rectangular pipes, the second and third rectangular pipes, and the third and fourth rectangular pipes are all connected by connecting pipes. The diameter of the connecting pipes between the first and second rectangular pipes, the second and third rectangular pipes, and the third and fourth rectangular pipes decreases sequentially. The decrease in the diameter of the connecting pipes leads to a gradual decrease in water pressure, thereby reducing the pressure on the first, second, third, and fourth rectangular pipes. The water pressure inside the four rectangular tubes also decreases step by step. Therefore, when the first, second, third, and fourth rectangular tubes irrigate the grass through the spraying components, the irrigation volume decreases sequentially. As a result, the grass receives different levels of irrigation from the outermost edge to the innermost edge. This allows for variable irrigation based on the grass's sunlight exposure, ensuring that different areas of the grass receive the required amount of water. This avoids situations where the outer edge of the grass receives insufficient irrigation or the shaded areas receive excessive irrigation. This solves the technical problem that current irrigation devices are not suitable for variable irrigation based on the water demand of different areas of the grass under the photovoltaic panels. Therefore, this invention has the advantage of variable irrigation.

[0014] 2. The connecting pipe of this utility model consists of a straight pipe section and a connecting section. The connecting sections at both ends of the straight pipe section are in a herringbone shape. Therefore, when the first rectangular pipe, the second rectangular pipe, the third rectangular pipe and the fourth rectangular pipe transport water through the herringbone connecting sections at both ends of the straight pipe section, the change in the direction of water flow can be smoother, avoiding the formation of strong vortices and turbulence. According to the principles of hydraulics, vortices and turbulence increase the energy loss of water flow, while a smooth transition can significantly reduce this energy loss, allowing water pressure to be transmitted more stably from one rectangular pipe to the next, ensuring the stability of the water source and the accuracy of water pressure within the rectangular pipe. This allows the water flow to be distributed more evenly to each spraying component, ensuring the spraying irrigation volume of each set of spraying components on the rectangular pipe, thereby further improving the accuracy and uniformity of grassland irrigation by the spraying components on the rectangular pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the second overall structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the first structure of the irrigation pipeline of this utility model;

[0018] Figure 4This is a schematic diagram of the second structure of the irrigation pipeline of this utility model;

[0019] Figure 5 This is a schematic diagram of the mounting bracket structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the connecting pipe structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the spraying component structure of this utility model;

[0022] Figure 8 This is a schematic cross-sectional view of the spraying component of this utility model;

[0023] Figure 9 This is a schematic diagram of the structure of the circular sleeve, rubber pad, and pressure ring of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Photovoltaic bracket; 2. Photovoltaic panel; 3. Rainwater collection structure; 4. Water pump; 5. Mounting bracket; 501. Rectangular hole; 502. Electro-hydraulic push rod; 503. Welding rod; 504. Fixing sleeve; 6. Irrigation pipeline; 7. First rectangular tube; 701. T-joint; 8. Second rectangular tube; 9. Third rectangular tube; 10. Fourth rectangular tube; 11. Connecting pipe; 1101. Straight pipe section; 1102. Butt joint section; 12. Spraying assembly; 1201. Connecting pipe; 1202. Pressure compensation box; 1203. Sprinkler head; 1204. Circular sleeve; 1205. Circular hole; 1206. Rubber pad; 1207. Pressure ring; 1208. Welding block; 1209. Fixing bolt; 12010. Arc groove; 12011. Annular protrusion. Detailed Implementation

[0026] like Figures 1 to 9As shown, this utility model relates to a grassland irrigation device for grass-photovoltaic complementary systems, comprising a photovoltaic support 1, a photovoltaic panel 2 arranged on the top of the photovoltaic support 1, a rainwater collection structure 3 arranged at the bottom of the photovoltaic support 1, a water pump 4 arranged on the water storage tank of the rainwater collection structure 3, an installation frame 5 arranged inside the photovoltaic support 1, and an irrigation pipeline 6 arranged at the bottom of the installation frame 5. The irrigation pipeline 6 is composed of a first rectangular tube 7, a second rectangular tube 8, a third rectangular tube 9, and a fourth rectangular tube 10, which are sequentially fitted from the outside to the inside. Two sets of connecting pipes 1 are symmetrically connected between the first rectangular tube 7 and the second rectangular tube 8, the second rectangular tube 8 and the third rectangular tube 9, and the third rectangular tube 9 and the fourth rectangular tube 10. 1. The diameter of the connecting pipe 11 between the first rectangular tube 7 and the second rectangular tube 8, the second rectangular tube 8 and the third rectangular tube 9, and the third rectangular tube 9 and the fourth rectangular tube 10 decreases sequentially from the outside to the inside. Several sets of spraying components 12 are arranged at equal intervals at the bottom of the first rectangular tube 7, the second rectangular tube 8, the third rectangular tube 9 and the fourth rectangular tube 10. A three-way pipe 701 is arranged at the top of the first rectangular tube 7. The two sets of output ports of the three-way pipe 701 are symmetrically connected to the first rectangular tube 7. The input port of the three-way pipe 701 is connected to the output port of the water pump 4 through a hose. The input port of the water pump 4 is connected to the output port of the water storage tank of the rainwater collection structure 3 through a conduit. The first rectangular tube 7 corresponds to the perimeter of the grass under the photovoltaic panel 2, and the fourth rectangular tube 10 corresponds to the center of the grass under the photovoltaic panel 2.

[0027] When irrigating the grass under the photovoltaic panel 2, the rainwater harvesting structure 3 first collects the rainwater. Then, personnel can use the water pump 4 and the three-way pipe 701 to input water from two symmetrical points into the first rectangular pipe 7. With the help of the connecting pipe 11, the water will enter the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10 in sequence. Then, the first rectangular pipe 7, the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10 spray the water onto the grass under the photovoltaic panel 2 through the spraying component 12, thereby completing the irrigation of the grass. It should be noted that the number of rectangular pipes can be adjusted according to the situation, and the water storage tank in the rainwater harvesting structure 3 also needs to be connected to an external water source so that when the water in the storage tank is insufficient, it can be supplemented by an external water source.

[0028] Because the diameter of the connecting pipe 11 between the first rectangular tube 7 and the second rectangular tube 8, the second rectangular tube 8 and the third rectangular tube 9, and the third rectangular tube 9 and the fourth rectangular tube 10 decreases sequentially, the decrease in the diameter of the connecting pipe 11 leads to a gradual decrease in water pressure. Consequently, the water pressure inside the first rectangular tube 7, the second rectangular tube 8, the third rectangular tube 9, and the fourth rectangular tube 10 also decreases sequentially. Therefore, when the first rectangular tube 7, the second rectangular tube 8, the third rectangular tube 9, and the fourth rectangular tube 10 irrigate the grass through the spraying component 12, the irrigation amount decreases sequentially. Thus, the grass under the photovoltaic panel 2 will receive different levels of irrigation from the outermost edge to the innermost edge. This ensures variable irrigation based on the grass's sunlight exposure, guaranteeing the water demand of different areas of the grass and preventing insufficient irrigation around the outer edge of the grass or excessive irrigation in the shaded areas.

[0029] Specifically, the spray assembly 12 includes a connecting pipe 1201, a pressure compensation box 1202, and a nozzle 1203. The connecting pipe 1201 is located at the top opening of the pressure compensation box 1202, and the nozzle 1203 is located at the bottom opening of the pressure compensation box 1202. A circular sleeve 1204 is arranged at the bottom inside the pressure compensation box 1202. Several sets of circular holes 1205 are equidistantly opened around the circumference of the circular sleeve 1204. A pressure ring 1207 is arranged at the bottom of the circular sleeve 1204, and a rubber pad 1206 is arranged on the opposite side of the pressure ring 1207 and the circular sleeve 1204. It should be noted that the flow rate of the spray assembly 12 on each set of rectangular pipes is different, and the flow rate should be maintained from the outside to the inside. In a state of gradually decreasing spray volume, the connecting pipe 1201 is used to connect with the rectangular pipe. The water source enters the circular sleeve 1204 of the pressure compensation box 1202, and then enters the pressure compensation box 1202 through the circular hole 1205. Finally, it is sprayed out from the nozzle 1203. When the pressure of the local spraying component 12 is too high, the rubber pad 1206 will be pushed outward to restrict the water flow to the nozzle 1203 and offset the excess pressure. In this way, the spraying flow rate of the spraying component 12 on each set of rectangular pipes can be kept constant, thereby ensuring that the spraying component 12 on each set of rectangular pipes can spray and irrigate the grass evenly and ensure that the irrigation amount in the same frequency area is uniform.

[0030] Furthermore, several sets of welding blocks 1208 are symmetrically arranged around the circumference of the sleeve 1204 and the pressure ring 1207, and fixing bolts 1209 are arranged between the symmetrical welding blocks 1208 on the sleeve 1204 and the pressure ring 1207. When installing the rubber pad 1206, the rubber pad 1206 is placed under the sleeve 1204, and then the pressure ring 1207 is placed under the rubber pad 1206. Then the welding blocks 1208 of the sleeve 1204 and the pressure ring 1207 are tightened together by fixing bolts 1209, thereby achieving the compression and fixation of the rubber pad 1206.

[0031] Furthermore, the bottom of the sleeve 1204 is provided with an arc-shaped groove 12010, and the top of the pressure ring 1207 is provided with an annular protrusion 12011. When the rubber pad 1206 is pressed and fixed under the sleeve 1204, the arc-shaped groove 12010 and the annular protrusion 12011 can provide better sealing for the rubber pad 1206.

[0032] It is worth noting that the mounting frame 5 has rectangular holes 501 at its four corners, and the rectangular holes 501 fit onto the support rods of the photovoltaic bracket 1. The four corners of the top of the mounting frame 5 are provided with electric hydraulic push rods 502, which are fixedly arranged on the support rods of the photovoltaic bracket 1. Several sets of welding rods 503 are arranged inside the mounting frame 5, and the bottom of the welding rods 503 is provided with fixing sleeves 504. The mounting frame 5 is slidably arranged on the photovoltaic bracket 1 through the rectangular holes 501, and can be raised and lowered by the electric hydraulic push rods 502, which can adjust the height of the irrigation pipe 6. After spraying, the irrigation pipe 6 can be raised to avoid livestock on the grass from touching and damaging it.

[0033] In an embodiment of this utility model, the connecting pipe 11 includes a straight pipe section 1101 and a connecting section 1102, with the connecting section 1102 arranged at both ends of the straight pipe section 1101;

[0034] When the first rectangular pipe 7, the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10 deliver water through the herringbone joint sections 1102 at both ends of the straight pipe section 1101, the change in the direction of water flow can be smoother, avoiding the formation of strong eddies and turbulence. According to the principles of hydraulics, eddies and turbulence increase the energy loss of water flow, while a smooth transition can significantly reduce this energy loss, allowing water pressure to be transmitted more stably from one rectangular pipe to the next, ensuring the stability of the water source and the accuracy of water pressure within the rectangular pipe. This allows the water flow to be distributed more evenly to each spraying component 12, ensuring the spraying and irrigation volume of each set of spraying components 12 on the rectangular pipe, thereby further improving the accuracy and uniformity of grassland irrigation by the spraying components 12 on the rectangular pipe.

[0035] Working principle: This embodiment provides a grassland irrigation device for grass-solar complementary systems. First, when irrigating the grassland under the photovoltaic panel 2, the rainwater collection structure 3 collects rainwater. Then, personnel can use a water pump 4 and a three-way pipe 701 to input water from two symmetrical points into the first rectangular pipe 7. Then, with the help of the connecting pipe 11, the water will sequentially enter the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10. Then, the first rectangular pipe 7, the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10 spray water onto the grassland under the photovoltaic panel 2 through the spraying component 12, thereby completing the irrigation of the grassland. It should be noted that the number of rectangular pipes can be adjusted according to the situation, and the water storage tank in the rainwater collection structure 3 also needs to be connected to an external water source so that when the water in the storage tank is insufficient, it can be supplemented by an external water source.

[0036] Secondly, because the diameter of the connecting pipe 11 between the first rectangular pipe 7 and the second rectangular pipe 8, the second rectangular pipe 8 and the third rectangular pipe 9, and the third rectangular pipe 9 and the fourth rectangular pipe 10 decreases sequentially, the decrease in the diameter of the connecting pipe 11 leads to a gradual decrease in water pressure. Consequently, the water pressure inside the first rectangular pipe 7, the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10 also decreases sequentially. Therefore, when the first rectangular pipe 7, the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10 spray water to irrigate the grass through the spraying component 12, the irrigation amount decreases sequentially. Thus, the grass under the photovoltaic panel 2 will receive different levels of irrigation from the outermost edge to the innermost edge. This ensures variable irrigation based on the influence of sunlight on the grass, guaranteeing the water demand of different areas of the grass and avoiding insufficient irrigation on the outer edge of the grass or excessive irrigation in the shaded areas of the grass.

[0037] Finally, when the first rectangular pipe 7, the second rectangular pipe 8, the third rectangular pipe 9, and the fourth rectangular pipe 10 deliver water through the herringbone joint sections 1102 at both ends of the straight pipe section 1101, the change in the direction of water flow can be smoother, avoiding the formation of strong eddies and turbulence. According to the principles of hydraulics, eddies and turbulence increase the energy loss of water flow, while a smooth transition can significantly reduce this energy loss, allowing water pressure to be transmitted more stably from one rectangular pipe to the next, ensuring the stability of the water source and the accuracy of water pressure within the rectangular pipe. This allows the water flow to be distributed more evenly to each spraying component 12, ensuring the spraying and irrigation volume of each set of rectangular pipe spraying components 12, thereby further improving the accuracy and uniformity of grassland irrigation by the spraying components 12 on the rectangular pipe.

[0038] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A grassland irrigation device for grass-photosynthetic irrigation, characterized in that, The system includes a photovoltaic support (1), a photovoltaic panel (2) arranged on the top of the photovoltaic support (1), a rainwater collection structure (3) arranged at the bottom of the photovoltaic support (1), a water pump (4) arranged on the water storage tank of the rainwater collection structure (3), an installation frame (5) arranged inside the photovoltaic support (1), and an irrigation pipe (6) arranged at the bottom of the installation frame (5). The irrigation pipe (6) is composed of a first rectangular pipe (7), a second rectangular pipe (8), a third rectangular pipe (9), and a fourth rectangular pipe (10), with the first rectangular pipe (7), the second rectangular pipe (8), the third rectangular pipe (9), and the fourth rectangular pipe (10) arranged from the outside to the inside. The first rectangular tube (7) and the second rectangular tube (8), the second rectangular tube (8) and the third rectangular tube (9), the third rectangular tube (9) and the fourth rectangular tube (10) are symmetrically connected by two sets of connecting pipes (11). The diameter of the connecting pipes (11) between the first rectangular tube (7) and the second rectangular tube (8), the second rectangular tube (8) and the third rectangular tube (9), and the third rectangular tube (9) and the fourth rectangular tube (10) decreases from the outside to the inside. Several sets of spraying components (12) are arranged at equal intervals at the bottom of the first rectangular tube (7), the second rectangular tube (8), the third rectangular tube (9) and the fourth rectangular tube (10). The connecting pipe (11) includes a straight pipe section (1101) and a connecting section (1102), with the connecting section (1102) arranged at both ends of the straight pipe section (1101).

2. The grassland irrigation device for grass-photosynthetic irrigation according to claim 1, characterized in that, A three-way pipe (701) is arranged on the top of the first rectangular tube (7). The two sets of output ports of the three-way pipe (701) are symmetrically connected to the first rectangular tube (7). The input port of the three-way pipe (701) is connected to the output port of the water pump (4) through a hose. The input port of the water pump (4) is connected to the output port of the water storage tank of the rainwater collection structure (3) through a conduit.

3. A grassland irrigation device for grass-photosynthetic irrigation according to claim 1, characterized in that, The spraying assembly (12) includes a connecting pipe (1201), a pressure compensation box (1202), and a nozzle (1203). The connecting pipe (1201) is arranged at the top opening of the pressure compensation box (1202), and the nozzle (1203) is arranged at the bottom opening of the pressure compensation box (1202).

4. A grassland irrigation device for grass-photosynthetic irrigation according to claim 3, characterized in that, The pressure compensation box (1202) has a circular sleeve (1204) arranged at the bottom. The circular sleeve (1204) has several sets of circular holes (1205) equidistantly opened around its circumference. A pressure ring (1207) is arranged at the bottom of the circular sleeve (1204), and a rubber pad (1206) is arranged on the opposite side of the pressure ring (1207) and the circular sleeve (1204).

5. A grassland irrigation device for grass-photosynthetic irrigation according to claim 4, characterized in that, The circular sleeve (1204) and the pressure ring (1207) are symmetrically arranged with several sets of welding blocks (1208) around their circumference, and fixing bolts (1209) are arranged between the symmetrical welding blocks (1208) on the circular sleeve (1204) and the pressure ring (1207).

6. A grassland irrigation device for grass-photosynthetic irrigation according to claim 4, characterized in that, The bottom of the sleeve (1204) is provided with an arc-shaped groove (12010), and the top of the pressure ring (1207) is provided with an annular protrusion (12011).

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