Water supply pipe water-saving irrigation equipment for agricultural planting

Abstract

The invention relates to the technical field of water-saving irrigation, in particular to water supply pipe water-saving irrigation equipment for agricultural planting, which comprises an irrigation storage tank, and a liquid inlet pipe for adding water into the irrigation storage tank is mounted on the irrigation storage tank; water return pipes and liquid outlet pipes with the same number are fixedly mounted on the side walls, close to the top and the bottom, of the irrigation storage tank respectively; at least one irrigation pipe is mounted between the corresponding water return pipe and liquid outlet pipe; the irrigation pipe comprises a middle shaft pipe, a rotating pipe and a U-shaped pipe, the bottom of the middle shaft pipe is fixedly installed on the side wall of the liquid outlet pipe and communicates with the interior of the liquid outlet pipe, the bottom of the rotating pipe is rotationally connected with the top of the middle shaft pipe, and the top of the rotating pipe is rotationally connected with one end of the U-shaped pipe; the top of the water return pipe is open. According to the irrigation equipment, the coincidence area of the through holes between the flow control ring and the fixing ring is adjusted through the pressure difference of the pressure sampling positions corresponding to the high-pressure pressure sampling pipe and the low-pressure pressure sampling pipe, so that the flow of the micro spray heads at all height positions is the same, the water utilization rate is increased, and the water-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of water-saving irrigation, and in particular to a water-saving irrigation device using a water supply pipe for agricultural planting. Background Art

[0002] In agricultural planting, using water supply pipes for irrigation is an effective water-saving irrigation method. Currently, there are two main water-saving irrigation methods for water supply pipes: drip irrigation and sprinkler irrigation. Drip irrigation uses plastic pipes to deliver water to the roots of crops through the orifices or drippers on the capillary tubes with a diameter of about 16 mm for local irrigation. With drip irrigation, the water utilization rate can reach 95%. Sprinkler irrigation uses pressurized nozzles on pipes to disperse water into fine droplets and spray them evenly on the fields to irrigate crops. The water utilization rate of sprinkler irrigation can reach 80%. Although it is lower than that of drip irrigation, its sprinkler irrigation range is larger. In order to have both the water-saving nature of drip irrigation and a larger sprinkler irrigation range, micro-sprinkler irrigation has emerged in irrigation technology. Micro-sprinklers use pipes to deliver water and spray them through micro-sprinklers for local irrigation.

[0003] Although the use of micro-sprinklers to spray can improve water utilization and expand the irrigation range, the irrigation range is limited by the water pressure of the micro-sprinklers. Therefore, in the prior art, there are devices that can drive the nozzles to rotate to irrigate crops in different directions. For example, a water-saving irrigation system disclosed in a Chinese invention patent (CN116569818B) is a system in which multiple central axis tubes are vertically installed on the inner hose, and diversion brackets are fixedly installed on the side walls of different heights of the central axis tube. The diversion rotor is installed on the top of the central axis tube. When the water source delivery pressure in the diversion pipe is relatively large, the central axis tube can rotate with the diversion rotor to achieve centrifugal irrigation, thereby expanding the irrigation range. Although the above equipment expands the irrigation range, when the water flows in the central axis tube, it is affected by the resistance loss along the way and the height difference, so that the water pressure difference at the water inlet position of the diversion bracket at different heights is relatively large, resulting in different water outputs of the diversion bracket at each height. In particular, the installation of micro-sprinklers will result in different spraying ranges of micro-sprinklers.

[0004] After searching, the applicant found that in order to solve the technical problem that the spraying amount of multiple nozzles is different due to the loss of resistance along the way, some solutions have been adopted. For example, the Chinese invention patent (CN114086636B) discloses a water storage type agricultural crop water-saving irrigation water supply device, which mainly adjusts the expansion amount of the expansion joint shell under the action of water pressure, thereby controlling the overlapping area of ​​the second through hole on the pull plate and the first through hole of the two guide support plates to adjust the water pressure. However, the use of this kind of pressure stabilizing equipment has high requirements on the material of the expansion shell, and it needs to be sensitive enough to the pressure change. Therefore, in response to the above problem, the applicant invented a water-saving irrigation device for water supply pipes that uses the characteristics of the pressure difference between different positions in the circulating water flow to make the water spray amount of each micro-sprinkler the same. Summary of the invention

[0005] The purpose of the present invention is to provide a water-saving irrigation device for agricultural planting using a water supply pipe. The irrigation device adjusts the overlapping area of ​​the through holes between the flow control ring and the fixed ring through the pressure difference between the corresponding pressure collection positions of the high-pressure pressure collection pipe and the low-pressure pressure collection pipe, so that the flow entering the guide pipe at each height position is the same, thereby improving the utilization rate of water and achieving the effect of water saving.

[0006] The present invention is implemented as follows: a water-saving irrigation device for agricultural planting using a water supply pipe comprises an irrigation storage tank, on which a liquid inlet pipe for adding water to the interior of the irrigation storage tank is installed; the same number of return pipes and liquid outlet pipes are fixedly installed on the side walls of the irrigation storage tank near the top and bottom of the irrigation storage tank respectively; at least one irrigation pipe is installed between the corresponding return pipes and liquid outlet pipes; the irrigation pipe comprises a central axis pipe, a rotating pipe and a U-shaped pipe, the bottom of the central axis pipe is fixedly installed on the side wall of the liquid outlet pipe and communicated with the interior of the liquid outlet pipe, the bottom of the rotating pipe is rotatably connected to the top of the central axis pipe, and the top of the rotating pipe is rotatably connected to one end of the U-shaped pipe; the top of the return pipe is open, and the other end of the U-shaped pipe is located at the top opening of the return pipe;

[0007] A plurality of guide tubes connected to the inside of the rotating tube are fixedly installed on the side wall of the rotating tube along its height direction, a micro-sprinkler is installed at the end of the guide tube, and a flow regulating mechanism for regulating the flow rate of water entering the guide tube is installed at the connection between the guide tube and the rotating tube. The flow regulating mechanism includes a connecting shell, a flow control ring, a fixed ring, a low-pressure pressure collection pipe, a high-pressure pressure collection pipe and two springs. The connecting shell is fixedly installed at the connection between the rotating tube and the guide tube, and the two sides of the connecting shell are opened and connected to the guide tube and the rotating tube. The flow control ring is slidably installed in the connecting shell and forms two chambers between the connecting shell and the connecting shell; the fixed ring is fixedly installed on the opening of the connecting shell and fits with the side wall of the flow control ring, and the two ends of the flow control ring are fixedly connected to the two springs respectively, and the ends of the two springs away from the flow control ring are fixedly connected to the inner wall of the connecting shell; one end of the high-pressure pressure collection pipe and the low-pressure pressure collection pipe are respectively connected to the two chambers of the connecting shell, the other end of the high-pressure pressure collection pipe is connected to the inside of the rotating tube, and the other end of the low-pressure pressure collection pipe is located in the return water pipe;

[0008] A pressurizing mechanism is installed between the rotating tube and the irrigation storage tank; the pressurizing mechanism can drive the rotating tube to rotate while pressurizing and transporting the liquid in the liquid outlet tube upward.

[0009] Furthermore, the pressurizing mechanism includes a gear ring, a second transmission gear, a transmission shaft, a power transmission control device, a reduction gear box, a pressurizing shell, a worm, a reduction device and a pressurizing device; the gear ring is fixedly sleeved on the outer wall of the rotating tube, the second transmission gear is rotatably sleeved on the transmission shaft, the power transmission control device is slidably sleeved on the transmission shaft, and the power transmission control device is used to control whether the rotational power of the transmission shaft one can be transmitted to the transmission gear two; the pressurizing device is installed in the pressurizing shell, and the pressurizing device is used to pressurize the water flow and transport it to the guide pipe and the return pipe; the end of the worm is fixedly connected to the power output end of the pressurizing device; the reduction device is rotatably installed in the reduction box, the power input end of the reduction device is meshed with the worm, and the power output end of the reduction device is fixedly connected to the transmission shaft one.

[0010] Furthermore, the pressurizing device includes a rotating motor and two pressurizing gears. The rotating motor is fixedly mounted on the side wall of the pressurizing shell. The two pressurizing gears are meshed and located inside the pressurizing shell. One of the pressurizing gears is fixedly sleeved on the power output shaft of the rotating motor, and the end of the worm is fixedly connected to the power output shaft of the rotating motor. Both sides of the center axis of the pressurizing gear are rotatably connected to the inner side wall of the pressurizing shell.

[0011] Furthermore, the pressurized shell is embedded in the middle shaft tube, and the reduction device includes a transmission gear three, a transmission shaft two and two mutually meshing bevel gears five; the end of the transmission shaft two is rotationally connected to the side wall of the reduction box, the transmission gear three and one of the bevel gears five are fixedly sleeved on the transmission shaft two, the transmission gear three is meshed with the worm, and the other bevel gear five is connected to the transmission shaft one.

[0012] Furthermore, the pressurized shell is embedded in the liquid outlet pipe, the speed reduction device is a transmission gear 1, the transmission gear 1 is meshed with the worm, and the transmission gear 1 is fixedly sleeved on the transmission shaft 1.

[0013] Furthermore, the power transmission control device includes a transmission disc, a sleeve, a screw and a stepper motor; the transmission disc is slidably sleeved on the transmission shaft one, and the transmission disc can translate along the length direction of the transmission shaft one; a limit ring is provided on the side wall of the transmission disc, and the top of the sleeve is located in the limit ring and is rotationally contacted with the transmission disc; the stepper motor is installed on the top of the reduction box, the output end of the stepper motor is fixedly connected to the bottom of the screw, and the sleeve is sleeved on the screw; meshing teeth that can mesh with each other are provided on the side walls opposite to the transmission gear two.

[0014] Furthermore, a filter cartridge is fixedly installed in the irrigation tank, the end of the return pipe is fixedly connected to the side wall of the filter cartridge, the liquid inlet pipe is vertically penetrated in the filter cartridge, the outer side wall of the liquid inlet pipe is in rotational contact with the irrigation tank, and a driving mechanism for driving the liquid inlet pipe to rotate is fixedly installed on the top of the irrigation tank; a plurality of liquid outlet holes are opened on the side wall of the liquid inlet pipe, and a plurality of stirring rods are fixedly installed on the outer side wall of the liquid inlet pipe, and the plurality of stirring rods are all located in the filter cartridge.

[0015] Furthermore, a connecting rod is fixedly connected to the bottom of the liquid inlet pipe, and a bevel gear 1 is fixedly sleeved on the connecting rod. A pressurizing unit is installed in each of the multiple liquid outlet pipes. The pressurizing unit includes a bevel gear 2, a transmission rod and a pressurizing slurry. The transmission gear 2 is meshed with the transmission gear 1. The two ends of the transmission rod are respectively connected to the pressurizing slurry and the bevel gear 2. A support bearing is sleeved on the transmission rod, and the support bearing is installed in the liquid outlet pipe; the low-pressure collection pipe is fixedly connected to the bottom of the water receiving pipe.

[0016] Furthermore, the liquid outlet pipe is a telescopic pipe, and a bevel gear three is fixedly sleeved on the side wall of the liquid inlet pipe. A translation mechanism for driving the irrigation pipe to translate is installed at the bottom of each of the multiple return pipes. The translation mechanism includes a threaded rod, a slider and a bevel gear four. The slider is fixedly connected to the outer wall of the U-shaped pipe, and the slider is sleeved on the threaded rod. One end of the threaded rod is rotatably connected to the bottom of the water receiving pipe, and the other end is fixedly connected to the bevel gear four. The bevel gear four is meshed with the bevel gear three; the low-pressure collection pipe is in contact with the inner wall of the bottom of the water receiving pipe, and the inlet end is the water-facing surface.

[0017] Furthermore, the driving mechanism includes a servo motor, a power transmission belt and two transmission wheels; the servo motor is fixedly installed on the top of the irrigation tank, the two transmission wheels are fixedly sleeved on the liquid inlet pipe and the output end of the servo motor respectively, and the power transmission belt is simultaneously sleeved on the two transmission wheels.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. A connecting shell is fixedly installed at the connection between the guide tube and the rotating tube, and two chambers are formed between the connecting shell and the flow control ring. The flow control ring fits the fixed ring, and the two chambers are respectively connected to the low-pressure pressure collection tube and the high-pressure pressure collection tube. At the same time, the pressure collection ends of the low-pressure pressure collection tube and the high-pressure pressure collection tube are respectively located in the return pipe and the rotating tube. In this way, the closer the guide tube is to the bottom of the rotating tube, the greater the pressure, resulting in a greater pressure in the chamber connected to the high-pressure pressure collection tube, and the low-pressure pressure collection tube on each guide tube is the water pressure at a fixed position on the return pipe. In this way, the closer to the bottom of the rotating tube, the greater the pressure difference between the two chambers, so that the smaller the overlap area of ​​the through holes of the fixed ring and the flow control ring, the smaller the amount of water entering the guide tube, so that the liquid in the rotating tube is evenly diverted to the guide tube, so that the irrigation range of each micro sprinkler is the same, and the water utilization rate is improved; at the same time, the excess water flow in the rotating tube will return to the irrigation storage tank through the return pipe, achieving the effect of water saving;

[0020] 2. Connect the pressurizing device in the pressurizing housing with the speed reducer, connect the speed reducer with the transmission shaft 1, and rotate the transmission gear 2 sleeved on the transmission shaft 1 to mesh with the gear ring. In this way, when the pressurizing device pressurizes the water flow, it can drive the rotating tube to rotate slowly at the same time, thereby realizing centrifugal sprinkler irrigation and expanding the irrigation range. In addition, a transmission disc is slidably sleeved on the transmission shaft 1, and the transmission disc meshes with the opposite side wall of the transmission gear 2. The top of the sleeve is located on the transmission disc. The sleeve can be driven up and down by the action of the stepper motor and the screw rod to adjust the meshing condition of the transmission disc and the transmission gear 2. In this way, the staff can choose fixed-point sprinkler irrigation or centrifugal sprinkler irrigation according to needs.

[0021] 3. A filter cartridge is fixedly installed in the irrigation tank. The liquid outlet of the liquid inlet pipe is located in the filter cartridge. The end of the return pipe is also installed on the side wall of the filter cartridge. At the same time, a stirring rod is installed on the outer wall of the liquid inlet pipe. When the staff needs to fertilize, they can add fertilizer through the return pipe and let the fertilizer enter the filter cartridge to be fully mixed with water. By setting up the filter cartridge, it can prevent the incompletely dissolved fertilizer and impurities in the return pipe from entering the irrigation pipe and causing the micro sprinkler to be blocked, thereby improving the reliability of the equipment;

[0022] 4. A connecting rod is installed at the bottom of the liquid inlet pipe, and a bevel gear 1 is fixed on the connecting rod. The bevel gear 1 transmits power to the pressurized slurry through the transmission rod. The pressurized slurry is arranged in the liquid outlet pipe. In this way, the water can be continuously pressurized and transported to the liquid outlet pipe while the stirring rod is stirring. In this way, multiple irrigation pipes connected to the liquid outlet pipe can have sufficient water pressure, thereby improving the irrigation effect.

[0023] 5. The liquid inlet pipe is driven by a driving mechanism, and the liquid outlet pipe is configured as a telescopic pipe. A bevel gear three is fixedly sleeved on the liquid inlet pipe, and the bevel gear three is meshed with a plurality of bevel gears four at the same time. The slider fixedly connected to the U-shaped pipe is sleeved on the threaded rod. In this way, when the liquid outlet pipe is driven to rotate, the irrigation pipe can be moved along the length direction of the return pipe while stirring the contents of the filter cartridge. In this way, only one irrigation pipe needs to be arranged on the liquid inlet pipe to irrigate the crops on the entire moving path, thereby reducing the manufacturing cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a water-saving irrigation device for agricultural planting provided by Embodiment 1 of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the connection position of the rotating tube and the guide tube in Example 1 of the present invention;

[0026] Figure 3 is a side cross-sectional view of the U-shaped pipe and the water receiving pipe in Example 1 of the present invention;

[0027] Figure 4 is a side cross-sectional view of the rotating tube and the reduction box in Example 1 of the present invention;

[0028] Figure 5 is a top cross-sectional view of the reduction gearbox in Embodiment 1 of the present invention;

[0029] Figure 6 is a schematic diagram of the internal structure of the irrigation storage tank in Example 1 of the present invention;

[0030] Figure 7 yes Figure 6 The enlarged view of point A in the middle;

[0031] Figure 8 This is a schematic diagram of the structure of a water-saving irrigation device for agricultural planting provided by Embodiment 2 of the present invention;

[0032] Fig. 9 is a side cross-sectional view of a U-shaped tube and a water-saving tube in Example 2 of the present invention;

[0033] Fig.10 is a side sectional view of a reduction gearbox and a pressurized housing in Embodiment 2 of the present invention;

[0034] Fig.11 is a front cross-sectional view of a reduction gearbox in Embodiment 2 of the present invention;

[0035] Fig.12 is a schematic diagram of the structure inside the irrigation tank in Example 2 of the present invention;

[0036] Fig.13 yes Fig.12Enlarged view of point A in the middle.

[0037] Reference numerals in the above drawings:

[0038] 1. Irrigation tank; 2. Liquid inlet pipe; 3. U-shaped pipe; 4. Low-pressure pressure collection pipe; 5. Rotating pipe; 6. Central axis pipe; 7. Speed ​​reducer; 8. Liquid outlet pipe; 9. Gear ring; 10. Pressurized shell; 11. Fixed block; 12. Pressurized gear; 13. Diversion pipe; 14. Return pipe; 15. Micro sprinkler; 16. Flow control ring; 17. Spring; 18. High-pressure pressure collection pipe; 19. Fixed ring; 20. Connecting shell; 21. Rotating motor; 22. Bevel gear three; 23. Worm; 24. Transmission shaft one; 25. Stepper motor; 26. Transmission plate; 27. Transmission gear 2; 28. Transmission gear one; 29. ​​Servo motor; 30. Power transmission belt; 31. Transmission wheel; 32. Filter cartridge; 33. Stirring rod; 34. Connecting rod; 35. Liquid outlet; 36. Transmission rod; 37. Pressurized slurry; 38. Bevel gear one; 39. Bevel gear two; 40. Support bearing; 41. Threaded rod; 42. Sliding block; 43. Sleeve; 44. Screw; 45. Transmission shaft two; 46. Transmission gear three; 47. Telescopic rod; 48. Bevel gear five; 49. Limiting groove; 50. Limiting ring; 51. Protective shell; 52. Bevel gear four. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] Reference Figure 1-Figure 13 As shown, the following are preferred embodiments provided by the present invention.

[0043] Embodiment 1: A water-saving irrigation device for agricultural planting with a water supply pipe includes an irrigation tank 1, and an inlet pipe 2 for adding water to the interior of the irrigation tank 1 is installed on the irrigation tank 1. When the water in the irrigation tank 1 is insufficient, irrigation water can be added through the inlet pipe 2. In this embodiment, four horizontally arranged return pipes 14 and four horizontally arranged outlet pipes 8 are connected to the side wall of the irrigation tank 1. The return pipe 14 is installed on the side wall near the top of the irrigation tank 1, and the outlet pipe 8 is installed on the side wall near the bottom of the irrigation tank 1. Figure 1 As shown, the return pipe 14 corresponds to the outlet pipe 8 one by one. In order to allow the inlet pipe 2 to be stably inserted into the soil, a plurality of fixed blocks 11 are equidistantly installed on the bottom surface of the inlet pipe 2, and the fixed blocks 11 can be inserted into the soil to make the entire device more stable. The two adjacent return pipes 14 and the two adjacent outlet pipes 8 are vertically arranged. In this embodiment, two irrigation pipes are fixedly installed between the corresponding return pipes 14 and the outlet pipes 8; in this way, a circulating water pipeline is formed between the irrigation tank 1, the outlet pipe 8, the irrigation pipe and the return pipe 14. The irrigation pipe includes a central axis pipe 6, a rotating pipe 5 and a U-shaped pipe 3. The bottom of the central axis pipe 6 is fixedly installed on the side wall of the outlet pipe 8 and is connected to the inside thereof. The bottom of the rotating pipe 5 and the top of the central axis pipe 6 are rotatably connected by a limiting rotating ring. The top of the rotating pipe 5 and one end of the U-shaped pipe 3 are also rotatably connected in the same manner; combined with Figure 3 As shown, the top of the return pipe 14 is open, and the other end of the U-shaped pipe 3 is located at the top opening of the return pipe 14, so that the water flow that is not sprinkled flows into the return pipe 14 through the U-shaped pipe 3. Designing the return pipe 14 to be open at the top can not only realize the return of excess water, but also collect rainwater on rainy days, and the collected rainwater enters the irrigation storage tank 1 through the return pipe.

[0044] In order to allow irrigation water to be sprayed on the root and foliage areas of crops, Figure 1 As shown, in this embodiment, two groups of guide tubes 13 communicating with the inside of the rotating tube 5 are fixedly installed on the side wall of the rotating tube 5 along its height direction. Considering that the rotating tube 5 can rotate, the number of each group of guide tubes 13 is set to two, and the guide tubes 13 are vertically arranged between the rotating tube 5. A micro-sprinkler 15 is fixedly installed at the end of the guide tube 13. A flow regulating mechanism for regulating the flow rate of water entering the guide tube 13 is installed at the connection between the guide tube 13 and the rotating tube 5. Figure 2As shown, the flow regulating mechanism is mainly composed of a connecting shell 20, a flow control ring 16, a fixed ring 19, a low-pressure pressure collection pipe 4, a high-pressure pressure collection pipe 18 and two springs 17. The connecting shell 20 is fixedly installed at the connection between the rotating tube 5 and the guide tube 13. The two sides of the connecting shell 20 are opened and communicated with the guide tube 13 and the rotating tube 5. The flow control ring 16 is slidably installed in the connecting shell 20, and the top and bottom of the flow control ring 16 and the connecting shell 20 respectively form two upper and lower sealed chambers; the fixed ring 19 is fixedly installed on the opening of the connecting shell 20 and fits with the side wall of the flow control ring 16. The size of the through hole in the middle of the fixed ring 19 is the same as the size of the through hole of the flow control ring 16. The two springs 17 are respectively fixedly installed in the upper and lower sealed chambers of the connecting shell 20, and the two ends of the spring 17 are respectively fixedly connected to the flow control ring 16 and the inner wall of the connecting shell 20. In this embodiment, one end of the high-pressure pressure collection pipe 18 is connected to the lower chamber of the connection shell 20, and the other end is connected to the inside of the rotating tube 5. The horizontal height of the connection is the same as the horizontal height of the connection shell 20. One end of the low-pressure pressure collection pipe 4 is connected to the top chamber of the connection shell 20, and the other end is connected to the bottom of the return pipe 14. Figure 3 As shown, since the rotating tube 5 needs to rotate, the low-pressure collection tube 4 is mainly designed in two sections, and the connection between the two sections is located at the axial position of the rotating tube 5 or the U-shaped tube 3, and one section is inserted into the other end to achieve a rotating connection. The low-pressure collection tube 4 and the high-pressure collection tube 18 are both thin tubes. Since there are two groups of flow guide tubes 13, in this embodiment, the low-pressure collection tube 4 is set in a branching form, so that all the low-pressure collection tubes 4 on a rotating tube 5 can be connected to the same position at the bottom of the return pipe 14. In this way, the internal pressure of each chamber connected to the top of the shell 20 is the same as the internal pressure at the position of the return pipe 14. The lower chamber of the connecting shell 20 is connected to the same pressure at the connection point of the rotating tube 5 through the high-pressure collection tube 18. Since the water flows upward along the rotating tube 5 under pressure, the water flow will be closer to the bottom of the guide tube 13 due to the resistance loss along the way, the local resistance loss and the gravity. The greater the water flow pressure, the greater the pressure difference between the upper and lower chambers in the shell 20, the greater the distance the flow control ring 16 moves upward, the smaller the overlap area of ​​the through holes of the flow control ring 16 and the fixed ring 19, and the smaller the water flow entering the guide tube 13. In this way, the water flow entering the guide tube 13 at each height position is the same.

[0045] Combination Figure 1 , Figure 4 and Figure 5As shown, in this embodiment, the pressurizing mechanism is fixedly installed on the central axis tube 6. The pressurizing mechanism can not only pressurize and transport the irrigation water, but also drive the rotating tube 5 to rotate, so as to achieve a one-machine-multiple-purposes effect. The pressurizing mechanism is mainly composed of a gear ring 9, a transmission gear 27, a transmission shaft 1 24, a power transmission control device, a reduction box 7, a pressurizing housing 10, a worm 23, a reduction device and a pressurizing device; the pressurizing housing 10 is embedded in the central axis tube 6, the gear ring 9 is fixedly sleeved on the outer wall of the rotating tube 5, and the transmission gear 27 is sleeved on the transmission shaft 1 24, but they rotate independently of each other. Here, they can be combined Fig.11 As shown, in order to support the transmission gear 27, the transmission gear 27 is rotatably connected to the transmission shaft 1 24 by means of a limit ring 50. The power transmission control device is slidably sleeved on the transmission shaft 1 24, and the power transmission control device is used to control whether the rotational power of the transmission shaft 1 24 can be transmitted to the transmission gear 2 27; the pressurizing device is installed in the pressurizing housing 10, and the pressurizing device is used to pressurize the water flow and transport it to the guide pipe 13 and the return pipe 14; the end of the worm 23 is fixedly connected to the power output end of the pressurizing device; the reduction device is rotatably installed in the reduction box 7, the power input end of the reduction device is meshed with the worm 23, and the power output end of the reduction device is fixedly connected to the transmission shaft 1 24.

[0046] In this embodiment, the pressurizing device adopts a gear pump pressurizing method. The pressurizing device is mainly composed of a rotating motor 21 and two pressurizing gears 12. The two pressurizing gears 12 are meshed with each other. The rotating motor 21 is fixedly installed on the side wall of the pressurizing shell 10. The two pressurizing gears 12 are meshed and located in the pressurizing shell 10. One of the pressurizing gears 12 is fixedly sleeved on the power output shaft of the rotating motor 21, and the end of the worm 23 is fixedly connected to the power output shaft of the rotating motor 21. The other end of the worm 23 is connected to the inner wall of the reduction box 7 by a bearing; both sides of the central axis of the pressurizing gear 12 are also connected to the inner wall of the pressurizing shell 10 by a bearing.

[0047] Since the pressurizing gear 12 rotates at high speed during the pressurizing process, a speed reduction device is required to reduce the speed so that the rotating tube 5 rotates slowly. Figure 4 and Figure 5 As shown, the speed reduction device is a transmission gear 28, which meshes with the worm 23. When the pressure gear 12 rotates, the transmission mode of the worm 23 and the transmission gear 28 can reduce the rotation speed of the transmission shaft 24.

[0048] In order to transmit the rotational power of the transmission shaft 1 24 to the transmission gear 2 27, the power transmission control device is mainly composed of a transmission disc 26, a sleeve 43, a screw rod 44 and a stepper motor 25; the transmission disc 26 is sleeved on the transmission shaft 1 24 and connected to the transmission shaft 1 24 by a spline. Fig.11As shown, a plurality of limit grooves 49 are provided on the side wall of the transmission shaft 1 24, and the transmission disc 26 can translate along the length direction of the transmission shaft 1 24. A limit ring 50 is provided on the side wall of the transmission disc 26, and the top of the sleeve 43 is located in the limit ring 50 and contacts the transmission disc 26; the stepper motor 25 is embedded in the top of the reduction box 7, and the output end of the stepper motor 25 is fixedly connected to the bottom of the screw rod 44, and the sleeve 43 is sleeved on the screw rod 44; the side wall of the transmission disc 26 opposite to the transmission gear 2 27 is provided with meshing teeth that can mesh with each other. When the rotating tube 5 needs to rotate, the stepping motor 25 drives the screw rod 44 to rotate, and the sleeve 43 drives the transmission plate 26 to translate upward, so that the transmission plate 26 is meshed with the side wall of the second transmission gear 27. When the transmission shaft 1 24 rotates, the power is transmitted to the transmission plate 26, and the transmission plate 26 drives the second transmission gear 27 to rotate, and the second transmission gear 27 drives the first transmission gear 28 to rotate, thereby controlling the rotation of the rotating tube 5. In order to enable the transmission plate 26 to move up and down smoothly, a telescopic rod 47 is fixedly installed on the top of the reduction box 7 in this embodiment, and the top of the telescopic rod 47 is also located in the transmission plate 26 and contacts the transmission plate 26.

[0049] Since the present embodiment adopts the micro-sprinkler irrigation method for irrigation, in order to avoid the clogging of the micro-sprinkler 15, in the present embodiment, Figure 6 As shown, a filter cartridge 32 is fixedly installed in the irrigation tank 1, the top of the filter cartridge 32 is fixedly connected to the top of the irrigation tank 1, all surfaces of the filter cartridge 32 are filter screens, and the end of the return pipe 14 is fixedly connected to the side wall of the filter cartridge 32, so that the water of the return pipe 14 flows directly into the inner area of ​​the filter cartridge 32, and the impurities in the rainwater are prevented from entering the irrigation pipe when collecting rainwater on rainy days. In the process of fertilization, in order to allow the fertilizer to be fully dissolved in the water, the present embodiment is provided with a driving mechanism on the top of the irrigation tank 1, and the driving mechanism drives the liquid inlet pipe 2 to rotate, and a plurality of liquid outlet holes 35 are opened on the side wall of the liquid inlet pipe 2, and a plurality of stirring rods 33 are fixedly installed on the outer wall of the liquid inlet pipe 2, and the plurality of stirring rods 33 are all located in the filter cartridge 32. The purpose of being arranged in the filter cartridge 32 is to prevent the fertilizer that is not dissolved in the water from directly entering the guide pipe 13, causing the micro sprinkler 15 to be blocked. In this way, the fertilizer can be better irrigated on the crops during irrigation. The liquid outlet 35 allows the external irrigation water to be added directly through the rotating liquid inlet pipe 2, so that the liquid inlet pipe 2 can not only increase the water volume in the irrigation tank 1, but also allow the fertilizer to be fully dissolved in the water. Since the top of the return pipe 14 of this embodiment is designed to be open, when applying fertilizer, the staff can pour the fertilizer on the return pipe 14 and let the return water flow flush the fertilizer into the filter cylinder 32 for stirring.

[0050] In this embodiment, the driving mechanism is mainly composed of a servo motor 29, a power transmission belt 30 and two transmission wheels 31; the servo motor 29 is embedded in the top of the irrigation tank 1, and the two transmission wheels 31 are fixedly sleeved on the liquid inlet pipe 2 and the output end of the servo motor 29 respectively, and the power transmission belt 30 is simultaneously sleeved on the two transmission wheels 31, so that the rotation of the servo motor 29 can drive the liquid inlet pipe 2 to rotate and stir.

[0051] Since two irrigation pipes are installed on each liquid outlet pipe 8 in this embodiment, in order to allow the irrigation pipes far away from the irrigation storage tank 1 to have sufficient water flow, in this embodiment, Figure 7 As shown, a connecting rod 34 is fixedly installed at the bottom of the liquid inlet pipe 2, and the bottom of the connecting rod 34 is connected to the bottom of the irrigation storage tank 1 by a bearing. At the same time, a bevel gear 1 38 is fixedly installed on the connecting rod 34. A pressurized slurry 37 is set in each liquid outlet pipe 8. The pressurized slurry 37 is connected to a transmission rod 36, and the transmission rod 36 is connected to a bevel gear 2 39. The bevel gear 2 39 is meshed with the bevel gear 1 38. In this way, when the liquid inlet pipe 2 rotates and stirs, the connecting rod 34 and the bevel gear 1 38 can be driven to rotate. Since the bevel gear 1 38 drives the bevel gear 2 39 to rotate, the bevel gear 2 39 drives the pressurized slurry 37 to rotate through the transmission rod 36, so that the irrigation water is pressurized and transported. In order to improve the stability of the pressurized slurry 37, a support bearing 40 is also set in the liquid outlet pipe 8. The side wall of the support bearing 40 is fixedly connected to the inner side wall of the liquid outlet pipe 8 through the rod body, and the support bearing 40 is sleeved on the transmission rod 36.

[0052] Embodiment 2: It is mainly composed of a transmission gear three 46, a transmission shaft two 45 and two mutually meshing bevel gears five 48; the end of the transmission shaft two 45 is connected to the side wall of the reduction box 7 by means of a bearing, the transmission gear three 46 and one of the bevel gears five 48 are fixedly sleeved on the transmission shaft two 45, the transmission gear three 46 is meshed with the worm 23, and the other bevel gear five 48 is connected to the transmission shaft one 24.

[0053] Working principle: When the device is used, turn on the rotating motor 21 and the servo motor 29. The rotating motor 21 drives the liquid inlet pipe 2 to rotate to achieve stirring of the irrigation water, and pressurizes the irrigation water and transports it to the liquid outlet pipe 8. The rotation of the rotating motor 21 allows the pressure gear 12 to perform secondary pressurization on the irrigation water. The irrigation water enters the irrigation pipe, part of which flows into the diversion pipe 13, and the remaining water returns to the irrigation storage tank 1 through the return pipe 14. During the pressurized transportation process, due to the resistance loss along the way, local resistance loss and gravity, the closer the guide tube 13 is to the return pipe 14, the smaller the pressure at the connection with the rotating pipe 5, and the return pipe 14 has the smallest pressure. At this time, the upper chamber in the connecting shell 20 is connected to the low pressure because it is connected to the low pressure pressure collection pipe 4, so the pressure is always at a constant minimum value, and the chamber at the bottom of the connecting shell 20 is connected to the high pressure pressure collection pipe 18, and the high pressure pressure collection pipe 18 is the water flow pressure collected at the connection position of the guide tube 13 and the rotating pipe 5. At this time, the closer to the bottom of the rotating pipe 5, the lower the pressure. The greater the pressure difference between the two chambers of the connecting shell 20 at the top, the flow control ring 16 will be pushed to move upward. At this time, the smaller the overlapping area of ​​the through holes between the flow control ring 16 and the fixed ring 19 is, the lower the water flow entering the guide tube 13 will be. The closer the connecting shell 20 is to the top of the rotating tube 5, the smaller the pressure difference between the upper and lower chambers inside it, so the larger the overlapping area of ​​the through holes between the flow control ring 16 and the fixed ring 19 is, so that the water flow of each guide tube 13 can be the same, so that the spraying range of each micro sprinkler 15 is the same.

[0054] Embodiment 2: A water-saving irrigation device for agricultural planting using a water supply pipe. The difference between this embodiment and embodiment 1 is that only one irrigation pipe is arranged between each group of corresponding return pipes 14 and liquid outlet pipes 8. The liquid outlet pipe 8 is arranged as a telescopic pipe, and the telescopic end is connected to the bottom of the irrigation pipe. A translation mechanism is arranged on the return pipe 14, and the translation mechanism can drive the entire irrigation pipe to translate. Compared with embodiment 1, this not only reduces the number of irrigation pipes, but also eliminates the entire pressurizing unit structure corresponding to the pressurizing slurry 37 in the liquid outlet pipe 8, thereby reducing the manufacturing cost.

[0055] In this embodiment, since the irrigation pipe can be moved, combined with Fig. 9 As shown, the pressure collection end of the low-pressure collection pipe 4 is in contact with the bottom of the return pipe 14, and the collection end is the water-facing surface, so that the pressure of the return pipe 14 can be accurately collected and the entire irrigation pipe can be moved along the length direction of the return pipe 14. It should be noted here that as long as the end of the low-pressure collection pipe 4 can collect the water flow pressure of the return pipe 14, different pipeline layouts of the low-pressure collection pipe 4 are within the protection scope of this patent.

[0056] Combination Figure 8 , Fig.10 and Fig.11As shown, in this embodiment, the pressurized housing 10 is arranged on the telescopic section of the liquid outlet pipe 8, and the reduction box 7 is fixedly installed on the outer wall of the pressurized housing 10. In order to drive the rotating tube 5 to rotate while also satisfying the pressurization, the reduction device of this embodiment is mainly composed of a transmission shaft 2 45, a transmission gear 3 46 and two bevel gears 5 48. Both ends of the transmission shaft 2 45 are connected to the inner wall of the reduction box 7 in the form of bearings. The transmission gear 3 46 and one of the bevel gears 5 48 are fixedly sleeved on the transmission shaft 2 45. The transmission gear 3 46 is meshed with the worm 23, and the two bevel gears 5 48 are meshed. The bevel gear 5 48 is fixedly connected to the bottom of the transmission shaft 1 24. It should be noted that as long as the different structures of the reduction device can transmit the power of the pressurized gear 12 to the transmission shaft 1 24, they are all within the protection scope of this patent.

[0057] In this embodiment, a bevel gear three 22 is fixedly sleeved on the side wall of the liquid inlet pipe 2, and the translation mechanism is mainly composed of a threaded rod 41, a slider 42 and a bevel gear four 52. The slider 42 is fixedly connected to the outer wall of the U-shaped tube 3, and the slider 42 is sleeved on the threaded rod 41. One end of the threaded rod 41 is rotatably connected to the bottom of the water receiving pipe, and the other end is fixedly connected to the bevel gear four 52. The bevel gear four 52 is meshed with the bevel gear three 22. In this way, when the servo motor 29 rotates, it can not only drive the liquid inlet pipe 2 to rotate and stir, but also drive the screw to rotate, so that the entire irrigation pipe moves along the direction of the return pipe 14. The servo motor 29 of this embodiment achieves the effects of stirring and driving the irrigation pipe to translate at the same time. In this embodiment, in order to prevent the bevel gear three 22 and the bevel gear four 52 from contacting with water and causing rust, a protective shell 51 is sleeved on the liquid inlet pipe 2 and the threaded rod 41, and the bevel gear three 22 and the bevel gear four 52 are both located in the protective shell 51.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water-saving irrigation device for agricultural planting using a water supply pipe, comprising an irrigation tank (1), on which a liquid inlet pipe (2) for adding water to the interior of the irrigation tank (1) is installed; characterized in that: The irrigation storage tank (1) is fixedly provided with the same number of return pipes (14) and liquid outlet pipes (8) on the side walls near the top and bottom of the irrigation storage tank (1); at least one irrigation pipe is installed between the corresponding return pipes (14) and liquid outlet pipes (8); the irrigation pipe comprises a central axis pipe (6), a rotating pipe (5) and a U-shaped pipe (3); the bottom of the central axis pipe (6) is fixedly installed on the side wall of the liquid outlet pipe (8) and communicates with the inside thereof; the bottom of the rotating pipe (5) is rotatably connected to the top of the central axis pipe (6); the top of the rotating pipe (5) is rotatably connected to one end of the U-shaped pipe (3); the top of the return pipe (14) is open, and the other end of the U-shaped pipe (3) is located at the top opening of the return pipe (14); A plurality of groups of flow guide tubes (13) in communication with the interior of the rotating tube (5) are fixedly mounted on the side wall of the rotating tube (5) along its height direction. A micro-sprinkler (15) is mounted at the end of the flow guide tube (13). A flow regulating mechanism for regulating the flow of water entering the flow guide tube (13) is mounted at the connection between the flow guide tube (13) and the rotating tube (5). The flow regulating mechanism comprises a connecting shell (20), a flow control ring (16), a fixing ring (19), a low-pressure pressure collection tube (4), a high-pressure pressure collection tube (18) and two springs (17). The connecting shell (20) is fixedly mounted at the connection between the rotating tube (5) and the flow guide tube (13). Both sides of the connecting shell (20) are open and in communication with the flow guide tube (13) and the rotating tube (5). The flow control ring (16) is slidably installed in the connecting shell (20) and forms two chambers between the connecting shell (20); the fixing ring (19) is fixedly installed on the opening of the connecting shell (20) and fits with the side wall of the flow control ring (16); the two ends of the flow control ring (16) are fixedly connected to the two springs (17) respectively, and the ends of the two springs (17) away from the flow control ring (16) are fixedly connected to the inner wall of the connecting shell (20); one end of the high-pressure sampling pipe (18) and the low-pressure sampling pipe (4) are respectively connected to the two chambers of the connecting shell (20), the other end of the high-pressure sampling pipe (18) is connected to the inside of the rotating pipe (5), and the other end of the low-pressure sampling pipe (4) is located in the return pipe (14); A pressurizing mechanism is installed between the rotating tube (5) and the irrigation storage tank (1); the pressurizing mechanism can drive the rotating tube (5) to rotate while pressurizing the liquid in the liquid outlet tube (8) for upward transportation.

2. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 1, characterized in that: The pressurizing mechanism comprises a gear ring (9), a second transmission gear (27), a first transmission shaft (24), a power transmission control device, a reduction box (7), a pressurizing housing (10), a worm (23), a reduction device and a pressurizing device; the gear ring (9) is fixedly sleeved on the outer wall of the rotating tube (5), the second transmission gear (27) is rotatably sleeved on the first transmission shaft (24), the power transmission control device is slidably sleeved on the first transmission shaft (24), and the power transmission control device is used to control whether the rotational power of the first transmission shaft (24) can be transmitted to the second transmission gear (27); the pressurizing device is installed in the pressurizing housing (10), and is used to pressurize and transport water flow to the guide pipe (13) and the return pipe (14); the end of the worm (23) is fixedly connected to the power output end of the pressurizing device; the reduction device is rotatably installed in the reduction box (7), the power input end of the reduction device is meshed with the worm (23), and the power output end of the reduction device is fixedly connected to the first transmission shaft (24).

3. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 2, characterized in that: The pressurizing device comprises a rotating motor (21) and two pressurizing gears (12). The rotating motor (21) is fixedly mounted on the side wall of the pressurizing shell (10). The two pressurizing gears (12) are meshed and located inside the pressurizing shell (10). One of the pressurizing gears (12) is fixedly sleeved on the power output shaft of the rotating motor (21). The end of the worm (23) is fixedly connected to the power output shaft of the rotating motor (21). Both sides of the central axis of the pressurizing gear (12) are rotatably connected to the inner wall of the pressurizing shell (10).

4. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 2, characterized in that: The pressurized housing (10) is embedded in the middle shaft tube (6), and the reduction device comprises a transmission gear three (46), a transmission shaft two (45) and two mutually meshing bevel gears five (48); the end of the transmission shaft two (45) is rotatably connected to the side wall of the reduction box (7), the transmission gear three (46) and one of the bevel gears five (48) are fixedly sleeved on the transmission shaft two (45), the transmission gear three (46) is meshed with the worm (23), and the other bevel gear five (48) is connected to the transmission shaft one (24).

5. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 2, characterized in that: The pressurized housing (10) is embedded in the liquid outlet pipe (8), the speed reducing device is a transmission gear (28), the transmission gear (28) is meshed with the worm (23), and the transmission gear (28) is fixedly sleeved on the transmission shaft (24).

6. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 2, characterized in that: The power transmission control device comprises a transmission disc (26), a sleeve (43), a screw rod (44) and a stepper motor (25); the transmission disc (26) is slidably sleeved on the transmission shaft (24), and the transmission disc (26) can translate along the length direction of the transmission shaft (24); a limit ring (50) is provided on the side wall of the transmission disc (26), and the top of the sleeve (43) is located in the limit ring (50) and is in rotational contact with the transmission disc (26); the stepper motor (25) is installed on the top of the reduction box (7), the output end of the stepper motor (25) is fixedly connected to the bottom of the screw rod (44), and the sleeve (43) is sleeved on the screw rod (44); and meshing teeth that can mesh with each other are provided on the side walls opposite to the transmission gear (26) and the second transmission gear (27).

7. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 1, characterized in that: A filter cartridge (32) is fixedly installed in the irrigation storage tank (1), the end of the return pipe (14) is fixedly connected to the side wall of the filter cartridge (32), the liquid inlet pipe (2) is vertically penetrated in the filter cartridge (32), the outer wall of the liquid inlet pipe (2) is in rotational contact with the irrigation storage tank (1), and a driving mechanism for driving the liquid inlet pipe (2) to rotate is fixedly installed on the top of the irrigation storage tank (1); a plurality of liquid outlet holes (35) are opened on the side wall of the liquid inlet pipe (2), and a plurality of stirring rods (33) are fixedly installed on the outer wall of the liquid inlet pipe (2), and the plurality of stirring rods (33) are all located in the filter cartridge (32).

8. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 7, characterized in that: A connecting rod (34) is fixedly connected to the bottom of the liquid inlet pipe (2), and a bevel gear 1 (38) is fixedly sleeved on the connecting rod (34). A pressurizing unit is installed in each of the plurality of liquid outlet pipes (8), and the pressurizing unit comprises a bevel gear 2 (39), a transmission rod (36) and a pressurizing slurry (37). The transmission gear 2 (27) is meshed with the transmission gear 1 (28), and the two ends of the transmission rod (36) are respectively connected to the pressurizing slurry (37) and the bevel gear 2 (39). A support bearing (40) is sleeved on the transmission rod (36), and the support bearing (40) is installed in the liquid outlet pipe (8); and the low-pressure sampling pipe (4) is fixedly connected to the bottom of the water receiving pipe.

9. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 7, characterized in that: The liquid outlet pipe (8) is a telescopic pipe, a bevel gear three (22) is fixedly sleeved on the side wall of the liquid inlet pipe (2), and a translation mechanism for driving the irrigation pipe to translate is installed at the bottom of the plurality of return pipes (14), the translation mechanism comprising a threaded rod (41), a slider (42) and a bevel gear four (52), the slider (42) is fixedly connected to the outer wall of the U-shaped pipe (3), the slider (42) is sleeved on the threaded rod (41), one end of the threaded rod (41) is rotatably connected to the bottom of the water receiving pipe, and the other end is fixedly connected to the bevel gear four (52), and the bevel gear four (52) is meshed with the bevel gear three (22); the low-pressure collection pipe (4) is in contact with the inner wall of the bottom of the water receiving pipe, and the inlet end is the water-facing surface.

10. The water-saving irrigation equipment for agricultural planting using a water supply pipe according to claim 7, characterized in that: The driving mechanism comprises a servo motor (29), a power transmission belt (30) and two transmission wheels (31); the servo motor (29) is fixedly mounted on the top of the irrigation tank (1), the two transmission wheels (31) are respectively fixedly sleeved on the liquid inlet pipe (2) and the output end of the servo motor (29), and the power transmission belt (30) is simultaneously sleeved on the two transmission wheels (31).

Images