Crop cultivation drip irrigation structure

Abstract

The invention discloses a drip irrigation structure for crop cultivation, and relates to the technical field of drip irrigation structures for crop cultivation, the drip irrigation structure for crop cultivation comprises a drip irrigation main pipe, the surface of the drip irrigation main pipe is fixedly communicated with a plurality of drip irrigation branch pipes, and according to the drip irrigation structure for crop cultivation, drip irrigation units are arranged, and after water is introduced into square pipes, the drip irrigation branch pipes are communicated with the drip irrigation main pipe; when crops are irrigated, water enters the connecting pipe through the first pipeline, the sealing assembly seals the third pipeline and the second pipeline at the moment, then the water is filtered through the precise filter screen in the connecting pipe, and then the water enters the hose and the drip irrigation head through the fourth pipeline, so that drip irrigation of the crops is achieved; and if the precision filter screen is blocked, the first pipeline and the fourth pipeline are sealed through the sealing assembly, so that water enters the second pipeline, the water reversely impacts the precision filter screen, impurities blocked on the precision filter screen are flushed down, the impurities are discharged through the third pipeline, and the effect of discharging the impurities in the connecting pipe is achieved.

Description

Technical Field

[0001] This invention relates to the field of drip irrigation structure technology for crop cultivation, specifically a drip irrigation structure for crop cultivation. Background Technology

[0002] Drip irrigation for crops is a precision water-saving irrigation technology. Its core principle is to deliver water (or a water-fertilizer mixture containing fertilizer) at a very low flow rate, evenly and slowly, to the soil around the crop roots through a low-pressure pipeline system, achieving targeted water supply to the crop. It is currently one of the most water-efficient and precise water and fertilizer utilization methods in agricultural irrigation and is widely used in the cultivation of various crops.

[0003] During water delivery, although filters are used to reduce impurities in the water source, the water and fertilizer are usually mixed by a mixing device during the delivery of the treated water. However, calcium and magnesium ions in the water react with fertilizer to form precipitates (such as calcium phosphate), which can easily cause the drip irrigation head to become clogged. Even if a precision filter is used in the existing technology to filter fertilizer precipitates, long-term use can easily lead to clogging of the precision filter, which in turn affects the accurate control of the drainage of the drip irrigation head. The solution to the clogging of the precision filter is to disassemble and reassemble the precision filter, which is a rather cumbersome operation. Therefore, we propose a drip irrigation structure for crop cultivation. Summary of the Invention

[0004] The purpose of this invention is to provide a drip irrigation structure for crop cultivation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drip irrigation structure for crop cultivation, comprising a drip irrigation main pipe, wherein drip irrigation branch pipes are fixedly connected to the surface of the drip irrigation main pipe, and the number of drip irrigation branch pipes is several, wherein each drip irrigation branch pipe is composed of several round pipes and several square pipes, wherein the round pipes and square pipes are fixedly connected, one end of one of the round pipes is fixedly connected to the surface of the drip irrigation main pipe, and the several round pipes and several square pipes are arranged alternately, wherein a drip irrigation mechanism is provided on the surface of the square pipe, the drip irrigation mechanism including a backwashing unit and a drip irrigation unit, and a transmission mechanism for cooperating with the backwashing unit is provided on the inner wall of the square pipe.

[0006] Preferably, the drip irrigation unit includes a first pipe and a second pipe fixedly connected to the surface of a square tube. A third pipe is fixedly connected to the surface of the first pipe, and a fourth pipe is fixedly connected to the surface of the second pipe. A flexible tube is fixedly connected to one end of the fourth pipe, and a drip irrigation head is fixedly connected to one end of the flexible tube. A connecting pipe is fixedly connected between opposite sides of the first pipe and the second pipe. One end of the third pipe and one end of the fourth pipe are respectively fixedly connected to the two ends of the connecting pipe. Two sealing components are provided in the inner cavity of the connecting pipe, and a precision filter screen is fixedly connected to the inner wall of the connecting pipe. The precision filter screen is inclined.

[0007] Preferably, the sealing assembly includes a rotating shaft rotatably connected to the inner wall of the connecting pipe, an L-shaped plate fixedly connected to the surface of the rotating shaft, a sealing gasket fixedly connected to the surface of the L-shaped plate, a torsion spring sleeved on the surface of the rotating shaft, one end of the torsion spring being fixedly connected to the inner wall of the connecting pipe, and the other end of the torsion spring being fixedly connected to the surface of the rotating shaft.

[0008] Preferably, the backwashing unit includes a sliding rod disposed in the inner cavity of the first pipe and the second pipe. A guide plate is fixedly connected to the top of the sliding rod, and one end of the guide plate is inclined. A first sealing plate is fixedly connected to the surface of the sliding rod in the inner cavity of the first pipe, and a second sealing plate is fixedly connected to the surface of the sliding rod in the inner cavity of the second pipe. A connecting rod is fixedly connected between the opposite sides of the two guide plates.

[0009] Preferably, the inner cavities of the first pipe and the second pipe are both fixedly connected to a first telescopic rod, the telescopic ends of the two first telescopic rods are respectively fixedly connected to one end of two sliding rods, the surface of the first telescopic rod is fitted with a tension spring, and one end of the two tension springs is respectively fixedly connected to the inner wall of the first pipe and the second pipe.

[0010] Preferably, the bottom of the connecting pipe is fixedly connected to a drain pipe, and the inner cavity of the connecting pipe is slidably connected to a sealing block that cooperates with the drain pipe. A thin rope is fixedly connected to one side of the sealing block, and one end of the thin rope is fixedly connected to one end of one of the L-shaped plates. A second telescopic rod is fixedly connected to the inner wall of the connecting pipe. The telescopic end of the second telescopic rod is fixedly connected to one side of the sealing block. A compression spring is sleeved on the surface of the second telescopic rod. One end of the compression spring is fixedly connected to the surface of the sealing block, and the other end of the compression spring is fixedly connected to the inner wall of the connecting pipe.

[0011] Preferably, a T-junction is fixedly connected between the drainage pipe and the opposite side of the third pipe, and one end of several T-junctions is fixedly connected to a central pipe.

[0012] Preferably, the transmission mechanism includes a gear rotatably connected to a first pipe, a toothed plate fixedly connected to the surface of a sliding rod in the first pipe, a rotating column fixedly connected to one end of the gear, the surface of the rotating column rotatably connected to the inner wall of the first pipe, a first transmission shaft fixedly connected to one end of the rotating column, a second transmission shaft fixedly connected to one end of the rotating shaft through a connecting pipe, a first transmission belt sleeved on the surfaces of the two second transmission shafts, the two second transmission shafts being connected by the first transmission belt, and a second transmission belt sleeved on the surface of one of the second transmission shafts and the surface of the first transmission shaft, the surfaces of the second transmission shaft and the surface of the first transmission shaft being connected by the second transmission belt.

[0013] Preferably, a protective shell is provided on the surface of the connecting pipe, the protective shell is installed on the surface of the connecting pipe by bolts, and a sealing ring is fixedly connected to one side of the protective shell.

[0014] Preferably, one end of one of the circular tubes is fixedly connected to a fixed tube, the inner cavity of the fixed tube is fixedly connected to a support frame, the inner cavity of the support frame is slidably connected to a moving rod, one end of the moving rod is fixedly connected to a sealing block, a return spring is sleeved on the surface of the moving rod, one end of the return spring is fixedly connected to the surface of the moving rod, and the other end of the return spring is fixedly connected to the support frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a drip irrigation unit. Drip heads are installed around crops, and water is introduced into a square pipe. The water then flows through a first pipe into a connecting pipe. A sealing assembly then seals the third and second pipes. The water is filtered through a precision filter in the connecting pipe and then flows through a fourth pipe into a flexible hose and drip head, thus achieving drip irrigation for crops. When the precision filter in the connecting pipe becomes clogged, the sealing assembly seals the first and fourth pipes, allowing water to enter the second pipe. This causes the water to impact the precision filter, flushing away impurities that clog it. These impurities are then discharged through the third pipe, effectively removing impurities from the connecting pipe. This invention incorporates a backwashing unit. During drip irrigation via the drip head, the water flow rate in the main drip irrigation pipe is relatively slow. At this time, the first sealing plate does not seal the first pipe, while the second sealing plate is located inside the second pipe. Therefore, the water flows through the first pipe into the connecting pipe and then into the fourth pipe. During backwashing, an externally connected water pump increases the water flow rate in the main drip irrigation pipe and the branch pipe. As the water flow rate increases, because one end of the guide plate is inclined, the guide plate moves away from the sliding rod under the impact of the water flow. This causes the first sealing plate to seal the first pipe, while the second sealing plate moves out of the inner cavity of the second pipe, allowing water to enter from the inner cavity of the second pipe and backwash the precision filter. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the round pipe, square pipe, central pipe and drip irrigation head of the present invention; Figure 3 This is a schematic diagram of the structure of the first pipe, the second pipe, and the third pipe of the present invention; Figure 4 For the present invention Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a cross-sectional schematic diagram of the first pipe, second pipe, fourth pipe and third pipe of the present invention; Figure 6 For the present invention Figure 5 A magnified view of a section at point B in the middle; Figure 7 For the present invention Figure 5 A magnified view of a section at point C; Figure 8 This is a schematic diagram of the structure of the L-shaped plate and the rotating shaft of the present invention; Figure 9 This is a cross-sectional schematic diagram of the connecting pipe of the present invention; Figure 10 This is a cross-sectional schematic diagram of the fixing tube of the present invention.

[0017] In the diagram: 1. Drip irrigation main pipe; 11. Drip irrigation branch pipe; 12. Round pipe; 13. Square pipe; 2. Drip irrigation mechanism; 21. Drip irrigation unit; 2101. First pipe; 2102. Second pipe; 2103. Third pipe; 2104. Fourth pipe; 2105. Flexible hose; 2106. Drip head; 2107. Connecting pipe; 2108. Precision filter; 2109. Rotating shaft; 2110. L-shaped plate; 2111. Sealing gasket; 2112. Torsion spring; 22. Backwashing unit; 2201. Sliding rod; 2202. Guide plate; 2203. First sealing plate; 2204. Second sealing plate; 2205. Connecting pipe. 2206. First telescopic rod; 2207. Tension spring; 2208. Drain pipe; 2209. Sealing block; 2210. Thin rope; 2211. Second telescopic rod; 2212. Compression spring; 2213. T-pipe; 2214. Central pipe; 3. Transmission mechanism; 301. Gear; 302. Gear plate; 303. Rotating column; 304. First drive shaft; 305. Second drive shaft; 306. First drive belt; 307. Second drive belt; 308. Protective shell; 309. Sealing ring; 310. Fixed pipe; 311. Support frame; 312. Moving rod; 313. Sealing block; 314. Return spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figures 1-10 This invention provides a technical solution: a drip irrigation structure for crop cultivation, including a drip irrigation main pipe 1, with drip irrigation branch pipes 11 fixedly connected to the surface of the drip irrigation main pipe 1. The number of drip irrigation branch pipes 11 is several, each consisting of several round pipes 12 and several square pipes 13. The round pipes 12 and square pipes 13 are fixedly connected, with one end of one round pipe 12 fixedly connected to the surface of the drip irrigation main pipe 1. The round pipes 12 and square pipes 13 are arranged alternately. A drip irrigation mechanism 2 is provided on the surface of the square pipe 13. The drip irrigation mechanism 2 includes a backwashing unit 22 and a drip irrigation unit 21. A transmission mechanism 3, which works in conjunction with the backwashing unit 22, is provided on the inner wall of the square pipe 13. It should be noted that one end of the drip irrigation main pipe 1 is connected to a water storage device and a fertilizer mixing device. The treated water is transported by a water pump on the water storage device, and during the transport process, the water and fertilizer are mixed by the fertilizer mixing device. This is prior art and will not be elaborated further.

[0020] The drip irrigation unit 21 includes a first pipe 2101 and a second pipe 2102 fixedly connected to the surface of the square tube 13. A third pipe 2103 is fixedly connected to the surface of the first pipe 2101, and a fourth pipe 2104 is fixedly connected to the surface of the second pipe 2102. One end of the fourth pipe 2104 is fixedly connected to a flexible hose 2105, and one end of the flexible hose 2105 is fixedly connected to a drip irrigation head 2106. A connecting pipe 2107 is fixedly connected between opposite sides of the first pipe 2101 and the second pipe 2102. One end of the third pipe 2103 and one end of the fourth pipe 2104 are respectively fixedly connected to both ends of the connecting pipe 2107. The inner cavity of the connecting pipe 2107 is provided with two sealing components, and a precision filter 2108 is fixedly connected to the inner wall of the connecting pipe 2107. The precision filter 2108 is inclined. By setting up the drip irrigation unit 21, installing the drip irrigation head 2106 around the crops, and then passing water into the square tube 13... Water enters the connecting pipe 2107 through the first pipe 2101. At this time, the sealing component seals the third pipe 2103 and the second pipe 2102. Then, the water is filtered through the precision filter 2108 in the connecting pipe 2107, and then enters the hose 2105 and the drip head 2106 through the fourth pipe 2104, thereby realizing drip irrigation for crops. When the precision filter 2108 in the connecting pipe 2107 becomes clogged, the sealing component seals the first pipe 2101 and the fourth pipe 2104, allowing water to enter the second pipe 2102. The water then impacts the precision filter 2108, washing away the impurities that are clogging the precision filter 2108. The impurities are then discharged through the third pipe 2103, thus achieving the effect of removing impurities from the connecting pipe 2107. It should be noted that one end of the drip head 2106 is tapered, which allows for precise control of the water volume.

[0021] The sealing assembly includes a rotating shaft 2109 rotatably connected to the inner wall of the connecting pipe 2107. An L-shaped plate 2110 is fixedly connected to the surface of the rotating shaft 2109, and a sealing gasket 2111 is fixedly connected to the surface of the L-shaped plate 2110. A torsion spring 2112 is sleeved on the surface of the rotating shaft 2109. One end of the torsion spring 2112 is fixedly connected to the inner wall of the connecting pipe 2107, and the other end of the torsion spring 2112 is fixedly connected to the surface of the rotating shaft 2109. By setting the sealing assembly, in the initial state, such as Figure 5As shown, one L-shaped plate 2110 seals the third pipe 2103, and the other L-shaped plate 2110 seals the second pipe 2102. At this time, the torsion spring 2112 is in a non-stressed state. When the precision filter screen 2108 is backwashed, the L-shaped plate 2110 is rotated, which seals the first pipe 2101 and the fourth pipe 2104, allowing water to enter the second pipe 2102. The water then impacts the precision filter screen 2108 in the reverse direction, causing the impurities clogging the precision filter screen 2108 to be washed away. At this time, the torsion spring 2112 is in a stressed and deformed state, which facilitates the reset and rotation of the rotating shaft 2109. The sealing gasket 2111 increases the sealing between the L-shaped plate 2110 and the first pipe 2101, the second pipe 2102, the third pipe 2103, and the fourth pipe 2104.

[0022] The specific implementation of this embodiment is as follows: The drip irrigation head 2106 is installed around the crops. Water is then introduced into the square pipe 13, and the water flows through the first pipe 2101 into the connecting pipe 2107. At this time, one L-shaped plate 2110 seals the third pipe 2103, and the other L-shaped plate 2110 seals the second pipe 2102. The torsion spring 2112 is not under stress at this time. The water is then filtered through the precision filter 2108 in the connecting pipe 2107, and then flows through the fourth pipe 2104 into the flexible hose 2105 and... In the drip irrigation head 2106, drip irrigation of crops is achieved. When the precision filter 2108 in the connecting pipe 2107 becomes clogged, the L-shaped plate 2110 is rotated, which closes the first pipe 2101 and the fourth pipe 2104, allowing water to enter the second pipe 2102. The water then impacts the precision filter 2108 in the reverse direction, washing away the impurities that are clogging the precision filter 2108. The impurities are then discharged through the third pipe 2103, thus achieving the effect of removing impurities from the connecting pipe 2107.

[0023] Example 2: Please refer to Figures 1-10 The present invention provides a technical solution: a drip irrigation structure for crop cultivation. The present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0024] The backwash unit 22 includes a sliding rod 2201 disposed within the inner cavities of the first pipe 2101 and the second pipe 2102. A guide plate 2202 is fixedly connected to the top of the sliding rod 2201, and one end of the guide plate 2202 is inclined. A first sealing plate 2203 is fixedly connected to the surface of the sliding rod 2201 within the inner cavity of the first pipe 2101, and a second sealing plate 2204 is fixedly connected to the surface of the sliding rod 2201 within the inner cavity of the second pipe 2102. A connecting rod 2205 is fixedly connected between opposite sides of the two guide plates 2202. By setting the backwash unit 22, when drip irrigation is performed through the drip head 2106, the water flow rate in the drip irrigation main pipe 1 is relatively slow. At this time, the first sealing plate 2203 does not seal the first pipe 2101, while the second sealing plate 2204 does not. The closing plate 2204 is located inside the second pipe 2102. Therefore, water flows through the first pipe 2101 into the connecting pipe 2107, and then through the connecting pipe 2107 into the fourth pipe 2104. During backwashing, the water flow rate in the drip irrigation main pipe 1 and the drip irrigation branch pipe 11 is increased by an externally connected water pump. As the water flow rate increases, since one end of the guide plate 2202 is inclined, the guide plate 2202 moves away from the sliding rod 2201 under the impact of the water flow. This causes the first closing plate 2203 to close the first pipe 2101, while the second closing plate 2204 moves out of the inner cavity of the second pipe 2102, allowing water to enter from the inner cavity of the second pipe 2102 and backwash the precision filter screen 2108.

[0025] Both the inner cavities of the first pipe 2101 and the second pipe 2102 are fixedly connected to first telescopic rods 2206. The telescopic ends of the two first telescopic rods 2206 are respectively fixedly connected to one end of the two sliding rods 2201. Tension springs 2207 are sleeved on the surface of the first telescopic rods 2206. One end of the two tension springs 2207 is fixedly connected to the inner wall of the first pipe 2101 and the second pipe 2102, respectively, and the other end of the two tension springs 2207 is fixedly connected to one end of the two sliding rods 2201, respectively. By setting the first telescopic rods 2206 and tension springs 2207, When the sliding rod 2201 is moved, the first telescopic rod 2206 will retract, guiding the sliding rod 2201. When a large water flow impacts the guide plate 2202, the guide plate 2202 will move the sliding rod 2201, causing the tension spring 2207 to deform under force. When a smaller water flow impacts, the deformation of the tension spring 2207 will cause the sliding rod 2201 to deform under force, thereby achieving the effect of resetting the sliding rod 2201.

[0026] A drain pipe 2208 is fixedly connected to the bottom of the connecting pipe 2107. A sealing block 2209, which cooperates with the drain pipe 2208, is slidably connected to the inner cavity of the connecting pipe 2107. A thin rope 2210 is fixedly connected to one side of the sealing block 2209. One end of the thin rope 2210 is fixedly connected to one end of one of the L-shaped plates 2110. A second telescopic rod 2211 is fixedly connected to the inner wall of the connecting pipe 2107. The telescopic end of the second telescopic rod 2211 is fixedly connected to one side of the sealing block 2209. A compression spring 2212 is sleeved on the surface of the second telescopic rod 2211. One end of the compression spring 2212 is fixedly connected to the surface of the sealing block 2209, and the other end of the compression spring 2212 is fixedly connected to the inner wall of the connecting pipe 2107. By setting up the cooperative use of the drain pipe 2208, the sealing block 2209, and the thin rope 2210, as... Figure 5 As shown, before the rotating shaft 2109 rotates, the sealing block 2209 is in a closed state to the drain pipe 2208. When the rotating shaft 2109 rotates, the L-shaped plate 2110 pulls the thin rope 2210, and the thin rope 2210 drives the sealing block 2209 to move. When the L-shaped plate 2110 closes the fourth pipe 2104, the sealing block 2209 uncloses the drain pipe 2208. At this time, when backwashing the precision filter screen 2108, the impurities on one side of the precision filter screen 2108 will enter the fourth pipe 2104. Since the precision filter screen 2108 is set at an angle, if there are a small amount of impurities on the other side of the precision filter screen 2108, they will also enter the drain pipe 2208, so as to avoid the accumulation of impurities on the surface of the precision filter screen 2108 as much as possible.

[0027] A tee pipe 2213 is fixedly connected between the opposite sides of the drain pipe 2208 and the third pipe 2103. One end of several tee pipes 2213 is fixedly connected to a central pipe 2214. By using the tee pipes 2213 and the central pipe 2214 together, impurities in the drain pipe 2208 and the fourth pipe 2104 will enter the tee pipes 2213 and then be discharged through the central pipe 2214. It should be noted that one end of the central pipe 2214 is connected to a storage device for collecting water containing impurities.

[0028] The specific implementation of this embodiment is as follows: When drip irrigation is performed through the drip head 2106, the water flow rate in the drip irrigation main pipe 1 is relatively slow. At this time, the first sealing plate 2203 does not seal the first pipe 2101, while the second sealing plate 2204 is located in the inner cavity of the second pipe 2102. Therefore, the water flow will enter the connecting pipe 2107 through the first pipe 2101, and then enter the fourth pipe 2104 through the connecting pipe 2107. During backwashing, the flow rate of the drip irrigation main pipe is increased by an externally connected water pump. The water flow velocity in pipe 1 and drip irrigation branch pipe 11 increases. Because one end of the guide plate 2202 is inclined, it moves away from the sliding rod 2201 under the impact of the water flow. This causes the first sealing plate 2203 to seal the first pipe 2101, while the second sealing plate 2204 moves out of the inner cavity of the second pipe 2102. This allows water to enter from the inner cavity of the second pipe 2102 and backwash the precision filter 2108, thus affecting the rotating shaft 2. Before rotation, the sealing block 2209 is in a closed state over the drain pipe 2208. When the rotating shaft 2109 rotates, the L-shaped plate 2110 pulls the thin rope 2210, which in turn moves the sealing block 2209. When the L-shaped plate 2110 closes the fourth pipe 2104, the sealing block 2209 releases its seal over the drain pipe 2208. At this time, during backwashing of the precision filter screen 2108, impurities on one side of the precision filter screen 2108 will enter the drain pipe 2208. Because the precision filter 2108 is set at an angle, if there are a small amount of impurities on the other side of the precision filter 2108, they will also enter the drain pipe 2208. This is to avoid the accumulation of impurities on the surface of the precision filter 2108 as much as possible. The impurities in the drain pipe 2208 and the fourth pipe 2104 will enter the three-way pipe 2213 and then be discharged through the central pipe 2214. It should be noted that one end of the central pipe 2214 can be connected to a storage device for collecting water containing impurities.

[0029] Example 3: Please refer to Figures 1-10 The present invention provides a technical solution: a drip irrigation structure for crop cultivation. The present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0030] The transmission mechanism 3 includes a gear 301 rotatably connected to the first pipe 2101. A toothed plate 302 is fixedly connected to the surface of the sliding rod 2201 in the first pipe 2101. A rotating column 303 is fixedly connected to one end of the gear 301. The surface of the rotating column 303 is rotatably connected to the inner wall of the first pipe 2101. A first drive shaft 304 is fixedly connected to one end of the rotating column 303. One end of the rotating shaft 2109 passes through the connecting pipe 2107 and is fixedly connected to a second drive shaft 305. A first drive belt 306 is sleeved on the surfaces of the two second drive shafts 305. The two second drive shafts 305 are connected by the first drive belt 306. A second drive belt 307 is sleeved on the surface of one of the second drive shafts 305 and the surface of the first drive shaft 304. The surfaces of the second drive shaft 305 and the first drive shaft 304 are connected by the second drive belt 307. By setting the transmission mechanism 3, when using a relatively... When the large water flow moves the guide plate 2202, the sliding rod 2201 moves, which in turn moves the toothed plate 302. When it reaches a certain position, the toothed plate 302 drives the gear 301 to rotate, which in turn drives the first drive shaft 304 to rotate. The first drive shaft 304 drives the second drive shaft 305 to rotate via the second drive belt 307. The second drive shaft 305 drives another second drive shaft 305 to rotate via the first drive belt 306, causing the two rotating shafts 2109 to rotate in the same direction. This achieves the effect of driving the L-shaped plate 2110 to rotate through the water flow. It should be noted that the impact force of the water flow is sufficient to move the guide plate 2202 and rotate the gear 301. It should also be noted that during drip irrigation, the pressure in the drip irrigation main pipe 11 can be increased periodically by a water pump to backwash the precision filter screen 2108.

[0031] A protective shell 308 is provided on the surface of the connecting pipe 2107. The protective shell 308 is installed on the surface of the connecting pipe 2107 by bolts. A sealing ring 309 is fixedly connected to one side of the protective shell 308. By using the protective shell 308 and the sealing ring 309 together, the protective shell 308 protects the first drive shaft 304 and the second drive shaft 305 from being exposed to the air and contaminated. The sealing ring 309 is used to seal the space between the protective shell 308 and the connecting pipe 2107.

[0032] One end of one of the circular pipes 12 is fixedly connected to a fixed pipe 310. A support frame 311 is fixedly connected to the inner cavity of the fixed pipe 310. It should be noted that the support frame 311 will not block the fixed pipe 310. A moving rod 312 is slidably connected to the inner cavity of the support frame 311. A blocking block 313 is fixedly connected to one end of the moving rod 312. A return spring 314 is sleeved on the surface of the moving rod 312. One end of the return spring 314 is fixedly connected to the surface of the moving rod 312, and the other end is fixedly connected to the support frame 311. Through the coordinated use of the fixed pipe 310, support frame 311, moving rod 312, and blocking block 313, during drip irrigation, the pressure on the inner walls of the main drip irrigation pipe 1 and the branch drip irrigation pipe 11 is relatively low, and the water flow rate is relatively slow. At this time, the blocking block 313 is in a blocking state on the fixed pipe 310. When backflushing the precision filter 2108, then… The pressure inside the drip irrigation main pipe 1 and drip irrigation branch pipe 11 is increased by the water pump, which causes the sealing block 313 to move inside the fixed pipe 310, thereby removing the sealing block 313 from the fixed pipe 310 and allowing water to be discharged from the fixed pipe 310. At this time, the flow rate of water in the drip irrigation branch pipe 11 can be increased, which allows the guide plate 2202 to move. It should be noted that the water discharged from the fixed pipe 310 can be discharged into ditches, water collection equipment and water storage tanks. This can be set according to the actual scenario and will not be elaborated in detail, so as to avoid water waste. It should be noted that the torsion spring 2112, return spring 314, tension spring 2207 and compression spring 2212 are all made of stainless steel. It should also be noted that the rotating column 303 is rotatably connected to the first pipe 2101 through a sealed bearing, and the rotating shaft 2109 is also rotatably connected to the connecting pipe 2107 through a sealed bearing.

[0033] The specific implementation of this embodiment is as follows: When a large water flow is used to move the guide plate 2202, the sliding rod 2201 will move, and the sliding rod 2201 will drive the toothed plate 302 to move. When a certain position is reached, the toothed plate 302 will drive the gear 301 to rotate, so that the gear 301 drives the first transmission shaft 304 to rotate. The first transmission shaft 304 drives the second transmission shaft 305 to rotate through the second transmission belt 307. The second transmission shaft 305 drives another second transmission shaft 305 to rotate through the first transmission belt 306, so that the two rotating shafts 2109 rotate in the same direction, thereby driving the L-shaped plate 2110 to rotate through the water flow.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drip irrigation structure for crop cultivation, comprising a drip irrigation main pipe (1), characterized in that: The surface of the main drip irrigation pipe (1) is fixedly connected to a drip irrigation branch pipe (11). There are several drip irrigation branch pipes (11). Each drip irrigation branch pipe (11) is composed of several round pipes (12) and several square pipes (13). The round pipes (12) and the square pipes (13) are fixedly connected. One end of one of the round pipes (12) is fixedly connected to the surface of the main drip irrigation pipe (1). Several round pipes (12) and several square pipes (13) are arranged in a cross pattern. A drip irrigation mechanism (2) is provided on the surface of the square pipe (13). The drip irrigation mechanism (2) includes a backwashing unit (22) and a drip irrigation unit (21). The inner wall of the square pipe (13) is provided with a transmission mechanism (3) that works in conjunction with the backwashing unit (22).

2. The drip irrigation structure for crop cultivation according to claim 1, characterized in that: The drip irrigation unit (21) includes a first pipe (2101) and a second pipe (2102) fixedly connected to the surface of the square tube (13). A third pipe (2103) is fixedly connected to the surface of the first pipe (2101), and a fourth pipe (2104) is fixedly connected to the surface of the second pipe (2102). A hose (2105) is fixedly connected to one end of the fourth pipe (2104), and a drip irrigation head (2106) is fixedly connected to one end of the hose (2105). A connecting pipe (2107) is fixedly connected between the opposite sides of the first pipe (2101) and the second pipe (2102). One end of the third pipe (2103) and one end of the fourth pipe (2104) are fixedly connected to the two ends of the connecting pipe (2107), respectively. The inner cavity of the connecting pipe (2107) is provided with two sealing components. A precision filter (2108) is fixedly connected to the inner wall of the connecting pipe (2107). The precision filter (2108) is inclined.

3. The drip irrigation structure for crop cultivation according to claim 2, characterized in that: The sealing assembly includes a rotating shaft (2109) rotatably connected to the inner wall of the connecting tube (2107). An L-shaped plate (2110) is fixedly connected to the surface of the rotating shaft (2109). A sealing gasket (2111) is fixedly connected to the surface of the L-shaped plate (2110). A torsion spring (2112) is sleeved on the surface of the rotating shaft (2109). One end of the torsion spring (2112) is fixedly connected to the inner wall of the connecting tube (2107), and the other end of the torsion spring (2112) is fixedly connected to the surface of the rotating shaft (2109).

4. The drip irrigation structure for crop cultivation according to claim 2, characterized in that: The backwashing unit (22) includes a sliding rod (2201) disposed in the inner cavity of the first pipe (2101) and the second pipe (2102). A guide plate (2202) is fixedly connected to the top of the sliding rod (2201). One end of the guide plate (2202) is inclined. A first sealing plate (2203) is fixedly connected to the surface of the sliding rod (2201) in the inner cavity of the first pipe (2101). A second sealing plate (2204) is fixedly connected to the surface of the sliding rod (2201) in the inner cavity of the second pipe (2102). A connecting rod (2205) is fixedly connected between the opposite sides of the two guide plates (2202).

5. The drip irrigation structure for crop cultivation according to claim 4, characterized in that: The inner cavities of the first pipe (2101) and the second pipe (2102) are both fixedly connected with first telescopic rods (2206). The telescopic ends of the two first telescopic rods (2206) are respectively fixedly connected to one end of the two sliding rods (2201). The surface of the first telescopic rods (2206) is fitted with tension springs (2207). One end of the two tension springs (2207) is respectively fixedly connected to the inner wall of the first pipe (2101) and the second pipe (2102). The other end of the two tension springs (2207) is respectively fixedly connected to one end of the two sliding rods (2201).

6. The drip irrigation structure for crop cultivation according to claim 4, characterized in that: The bottom of the connecting pipe (2107) is fixedly connected to a drain pipe (2208). The inner cavity of the connecting pipe (2107) is slidably connected to a sealing block (2209) that works with the drain pipe (2208). A thin rope (2210) is fixedly connected to one side of the sealing block (2209). One end of the thin rope (2210) is fixedly connected to one end of one of the L-shaped plates (2110). A second telescopic rod (2211) is fixedly connected to the inner wall of the connecting pipe (2107). The telescopic end of the second telescopic rod (2211) is fixedly connected to one side of the sealing block (2209). A compression spring (2212) is sleeved on the surface of the second telescopic rod (2211). One end of the compression spring (2212) is fixedly connected to the surface of the sealing block (2209), and the other end of the compression spring (2212) is fixedly connected to the inner wall of the connecting pipe (2107).

7. The drip irrigation structure for crop cultivation according to claim 6, characterized in that: A tee pipe (2213) is fixedly connected between the opposite sides of the drain pipe (2208) and the third pipe (2103), and one end of several tee pipes (2213) is fixedly connected to a central pipe (2214).

8. The drip irrigation structure for crop cultivation according to claim 3, characterized in that: The transmission mechanism (3) includes a gear (301) rotatably connected to the first pipe (2101). A toothed plate (302) is fixedly connected to the surface of the sliding rod (2201) in the first pipe (2101). A rotating column (303) is fixedly connected to one end of the gear (301). The surface of the rotating column (303) is rotatably connected to the inner wall of the first pipe (2101). A first transmission shaft (304) is fixedly connected to one end of the rotating column (303). One end of the rotating shaft (2109) passes through the connecting pipe (2100). 07) and a second drive shaft (305) is fixedly connected thereto. The surfaces of the two second drive shafts (305) are jointly fitted with a first drive belt (306). The two second drive shafts (305) are connected by transmission through the first drive belt (306). The surface of one of the second drive shafts (305) and the surface of the first drive shaft (304) are jointly fitted with a second drive belt (307). The surfaces of the second drive shaft (305) and the surfaces of the first drive shaft (304) are connected by transmission through the second drive belt (307).

9. The drip irrigation structure for crop cultivation according to claim 2, characterized in that: The surface of the connecting pipe (2107) is provided with a protective shell (308), which is installed on the surface of the connecting pipe (2107) by bolts, and a sealing ring (309) is fixedly connected to one side of the protective shell (308).

10. The drip irrigation structure for crop cultivation according to claim 1, characterized in that: One end of one of the circular tubes (12) is fixedly connected to a fixed tube (310). A support frame (311) is fixedly connected to the inner cavity of the fixed tube (310). A moving rod (312) is slidably connected to the inner cavity of the support frame (311). A sealing block (313) is fixedly connected to one end of the moving rod (312). A return spring (314) is sleeved on the surface of the moving rod (312). One end of the return spring (314) is fixedly connected to the surface of the moving rod (312), and the other end of the return spring (314) is fixedly connected to the support frame (311).

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