A water-saving irrigation device for water supply pipes used in agricultural planting

Abstract

The present invention relates to the technical field of water-saving irrigation, and particularly relates to a water-saving irrigation device for water supply pipes in agricultural planting, which includes an irrigation storage tank, and a liquid inlet pipe for adding water into the interior thereof is installed on the irrigation storage tank; the side walls of the irrigation storage tank near its top and bottom are respectively fixedly installed with the same number of return water pipes and liquid outlet pipes; at least one irrigation pipe is installed between the corresponding return water pipes and liquid outlet pipes; the irrigation pipe includes 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 is communicated with the interior thereof, 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 water pipe is open. The irrigation device adjusts the overlapping area of the through holes between the flow control ring and the fixed ring through the pressure difference at the pressure measurement positions corresponding to the high-pressure pressure measurement pipe and the low-pressure pressure measurement pipe, so that the flow rates of the micro-spray heads at each height position are the same, improving the water utilization rate and achieving the water-saving effect.

Description

Technical Field

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

[0002] In agricultural planting, using water supply pipes for irrigation is an effective water-saving irrigation method. Currently, there are mainly two ways of water-saving irrigation for water supply pipes: drip irrigation and sprinkler irrigation. Drip irrigation uses plastic pipes to deliver water through orifices or drippers on the capillary tubes with a diameter of about 16 mm to the roots of crops for local irrigation. By using the drip irrigation method, the water utilization rate can reach 95%. Sprinkler irrigation uses pressure nozzles on the pipes to disperse water into small water droplets and evenly spray them onto the field for irrigating 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 property of drip irrigation and a larger sprinkler irrigation range, a micro-sprinkler irrigation method has emerged in irrigation technology. Micro-sprinkling uses pipes to convey water and conducts local irrigation through micro-sprinklers.

[0003] Although using micro-sprinklers can improve the water utilization rate and expand the sprinkler irrigation range, the sprinkler irrigation range is limited by the water pressure of the micro-sprinklers. Therefore, in the prior art, there have emerged 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) vertically installs multiple central axis pipes on an inner-connected hose, misaligned and fixedly installs guide brackets on the side walls of the central axis pipes at different heights, and installs guide rotary blades at the top of the central axis pipes. When the water source delivery pressure in the shunt pipe is relatively large, the central axis pipes can rotate with the guide rotary blades at this time to achieve centrifugal sprinkler irrigation, thereby expanding the irrigation range. By using the above device, although the sprinkler irrigation range is expanded, when the water flows in the central axis pipes, it is affected by the frictional resistance loss along the way and the height difference, resulting in a large water pressure difference at the water inlet positions of the guide brackets at different heights, thereby causing different water discharge amounts of the guide brackets at each height. Especially when micro-sprinklers are installed, it will cause different sprinkler irrigation ranges of the micro-sprinklers.

[0004] After retrieval, the applicant found that in order to solve the technical problem that the spraying amounts of multiple nozzles are different due to the frictional resistance loss along the way, some solutions have also been adopted. For example, a water storage type agricultural crop water-saving irrigation water supply device disclosed in Chinese Invention Patent (CN114086636B) mainly adjusts the expansion amount of the expansion joint housing under the action of water pressure, thereby controlling the overlapping area of the second through hole on the pull plate and the first through holes of the two guiding support plates to adjust the water pressure. However, when using this voltage stabilizing device, there are high requirements for the material of the expansion housing, and it needs to be sensitive enough to the pressure change. Therefore, in view of the above problems, the applicant invented a water-saving irrigation device for a water supply pipe that makes the water spraying amount of each micro nozzle the same by utilizing the pressure difference between different positions in the circulating water flow. Summary of the Invention

[0005] The purpose of the present invention is to provide a water-saving irrigation device for a water supply pipe used in agricultural planting. The irrigation device adjusts the overlapping area of the through holes between the flow control ring and the fixed ring through the pressure difference at the pressure sampling positions corresponding to the high-pressure sampling pipe and the low-pressure sampling pipe, so that the flow rate entering the diversion pipe at each height position is the same, 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 a water supply pipe used in agricultural planting includes an irrigation storage tank, and a liquid inlet pipe for adding water into the interior thereof is installed on the irrigation storage tank; the side walls of the irrigation storage tank near its top and bottom are respectively fixedly installed with the same number of return water pipes and liquid outlet pipes; at least one irrigation pipe is installed between the corresponding return water pipes and liquid outlet pipes; the irrigation pipe includes a central shaft pipe, a rotating pipe, and a U-shaped pipe. The bottom of the central shaft pipe is fixedly installed on the side wall of the liquid outlet pipe and is communicated with its interior. The bottom of the rotating pipe is rotatably connected to the top of the central shaft pipe, and the top of the rotating pipe is rotatably connected to one end of the U-shaped pipe; the top of the return water pipe is open, and the other end of the U-shaped pipe is located at the top opening of the return water pipe;

[0007] A plurality of groups of diversion pipes communicating with the inside of the rotating pipe are fixedly installed on the side wall of the rotating pipe along its height direction. The end of the diversion pipe is provided with a micro-sprinkler head. A flow rate regulating mechanism for regulating the water flow rate entering the diversion pipe is installed at the connection between the diversion pipe and the rotating pipe. The flow rate regulating mechanism includes a connection housing, a flow control ring, a fixed ring, a low-pressure pressure-taking pipe, a high-pressure pressure-taking pipe and two springs. The connection housing is fixedly installed at the connection between the rotating pipe and the diversion pipe, and both sides of the connection housing are open and communicate with the diversion pipe and the rotating pipe. The flow control ring is slidably installed in the connection housing and forms two chambers with the connection housing. The fixed ring is fixedly installed on the opening of the connection housing and fits against the side wall of the flow control ring. Both 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 side wall of the connection housing. One end of the high-pressure pressure-taking pipe and the low-pressure pressure-taking pipe communicate with the two chambers of the connection housing respectively. The other end of the high-pressure pressure-taking pipe communicates with the inside of the rotating pipe, and the other end of the low-pressure pressure-taking pipe is located in the return water pipe.

[0008] A pressurizing mechanism is installed between the rotating pipe and the irrigation storage tank. While pressurizing and conveying the liquid in the liquid outlet pipe upward, the pressurizing mechanism can also drive the rotating pipe to rotate.

[0009] Furthermore, the pressurizing mechanism includes a toothed ring, a transmission gear two, a transmission shaft one, a power transmission control device, a speed reducer, a pressurizing housing, a worm, a speed reduction device and a pressurizing device. The toothed ring is fixedly sleeved on the outer side wall of the rotating pipe. The transmission gear two is rotatably sleeved on the transmission shaft one. The power transmission control device is slidably sleeved on the transmission shaft one, 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 housing, and the pressurizing device is used to pressurize and convey the water flow into the diversion pipe and the return water pipe. The end of the worm is fixedly connected to the power output end of the pressurizing device. The speed reduction device is rotatably installed in the speed reducer, the power input end of the speed reduction device meshes with the worm, and the power output end of the speed 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 installed on the side wall of the pressurizing housing. The two pressurizing gears mesh with each other and are located in the pressurizing housing. 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 central axis of the pressurizing gear are rotatably connected to the inner side wall of the pressurizing housing.

[0011] Furthermore, the pressurizing housing is embedded in the central axis pipe. The speed 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 rotatably connected to the side wall of the speed reducer. The transmission gear three and one of the bevel gears five are both fixedly sleeved on the transmission shaft two. The transmission gear three meshes with the worm, and the other bevel gear five is connected to the transmission shaft one.

[0012] Furthermore, the pressurized housing is embedded in the liquid outlet pipe, the speed reduction device is the first transmission gear, the first transmission gear meshes with the worm, and the first transmission gear is fixedly sleeved on the first transmission shaft.

[0013] Furthermore, the power transmission control device includes a transmission disc, a sleeve, a lead screw, and a stepping motor; the transmission disc is slidably sleeved on the first transmission shaft, and the transmission disc can translate along the length direction of the first transmission shaft; a limiting ring is provided on the side wall of the transmission disc, the top of the sleeve is located in the limiting ring and is in rotational contact with the transmission disc; the stepping motor is installed on the top of the reduction gearbox, the output end of the stepping motor is fixedly connected to the bottom of the lead screw, and the sleeve is sleeved on the lead screw; meshing teeth capable of meshing with each other are provided on the side wall of the transmission disc opposite to the second transmission gear.

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

[0015] Furthermore, a connecting rod is fixedly connected to the bottom of the liquid inlet pipe, a first bevel gear is fixedly sleeved on the connecting rod, a pressurizing unit is installed in each of the plurality of liquid outlet pipes, the pressurizing unit includes a second bevel gear, a transmission rod, and a pressurizing slurry, the second bevel gear meshes with the first transmission gear, both ends of the transmission rod are respectively connected to the pressurizing slurry and the second bevel gear, a support bearing is sleeved on the transmission rod, and the support bearing is installed in the liquid outlet pipe; the low-pressure pressure collecting pipe is fixedly connected to the bottom of the water connection pipe.

[0016] Furthermore, the liquid outlet pipe is a telescopic pipe, a third bevel gear 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 plurality of water return pipes, the translation mechanism includes a threaded rod, a slider, and a fourth bevel gear, the slider is fixedly connected to the outer side wall of the U-shaped pipe, the slider is sleeved on the threaded rod, one end of the threaded rod is rotatably connected to the bottom of the water connection pipe, and the other end is fixedly connected to the fourth bevel gear, and the fourth bevel gear meshes with the third bevel gear; the low-pressure pressure collecting pipe is in contact with the inner wall of the bottom of the water connection 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 storage tank, the two transmission wheels are respectively fixedly sleeved on the liquid inlet pipe and the output end of the servo motor, 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 connection housing is fixedly installed at the connection between the diversion pipe and the rotating pipe. Two chambers are formed between the connection housing and the flow control ring. The flow control ring fits with the fixed ring. The two chambers are respectively connected to the low-pressure pressure sampling pipe and the high-pressure pressure sampling pipe. At the same time, the pressure sampling ends of the low-pressure pressure sampling pipe and the high-pressure pressure sampling pipe are respectively located in the return water pipe and the rotating pipe. In this way, the closer the diversion pipe is to the bottom of the rotating pipe, the greater the pressure, resulting in a greater pressure in the chamber connected to the high-pressure pressure sampling pipe. And the low-pressure pressure sampling pipe on each diversion pipe collects the water pressure at a fixed position on the return water pipe. In this way, the closer to the bottom of the rotating pipe, the greater the pressure difference between the two chambers, and thus the smaller the overlapping area of the through holes of the fixed ring and the flow control ring, which will lead to a smaller amount of water entering the diversion pipe. In this way, the liquid in the rotating pipe is evenly and equally divided into the diversion pipes, so that the irrigation range of each micro-sprinkler is the same, improving the water utilization rate. At the same time, finally, the excess water flow in the rotating pipe will return to the irrigation storage tank through the return water pipe, achieving the effect of water conservation;

[0020] 2. Connect the pressurizing device in the pressurizing housing to the decelerating device. The decelerating device is connected to the first transmission shaft. The second transmission gear rotatably sleeved on the first transmission shaft meshes with the toothed ring. In this way, when the pressurizing device pressurizes the water flow, the rotating pipe can be simultaneously driven to rotate slowly, thus realizing centrifugal irrigation and expanding the irrigation range. In addition, a transmission disc is slidably sleeved on the first transmission shaft. The opposite side walls of the transmission disc and the second transmission gear are meshed. The top of the sleeve is located on the transmission disc. The up and down movement of the sleeve can be driven by the stepping motor and the lead screw to adjust the meshing situation between the transmission disc and the second transmission gear. In this way, the staff can choose fixed-point irrigation or centrifugal irrigation according to needs;

[0021] 3. A filter cylinder is fixedly installed in the irrigation storage tank. The liquid outlet hole of the liquid inlet pipe is located inside the filter cylinder. The end of the return water pipe is also installed on the side wall of the filter cylinder. At the same time, a stirring rod is also installed on the outer side wall of the liquid inlet pipe. In this way, when the staff needs to apply fertilizer, the fertilizer can be added through the return water pipe, so that the fertilizer enters the filter cylinder and is fully mixed with the water. By setting the filter cylinder, it can avoid the incomplete dissolution of fertilizer and impurities in the return water pipe from entering the irrigation pipe and causing blockage of the micro-sprinklers, improving the reliability of the equipment;

[0022] 4. A connecting rod is installed at the bottom of the liquid inlet pipe. A first bevel gear is fixedly installed on the connecting rod. The first bevel gear transmits power to the pressurizing impeller through a transmission rod. The pressurizing impeller is arranged in the liquid outlet pipe. In this way, while the stirring rod is stirring, the water can be continuously pressurized and conveyed to the liquid outlet pipe. In this way, sufficient water pressure can be provided for the multiple irrigation pipes connected to the liquid outlet pipe, improving the irrigation effect;

[0023] 5. The liquid inlet pipe is driven by a driving mechanism, and the liquid outlet pipe is arranged as a telescopic pipe. A third bevel gear is fixedly sleeved on the liquid inlet pipe, and the third bevel gear meshes with a plurality of fourth bevel gears 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 inside of the filter cylinder can be stirred while the irrigation pipe can be moved along the length direction of the return water pipe. 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, reducing the manufacturing cost of the equipment. Brief Description of the Drawings

[0024] Figure 1 Fig. is a schematic structural diagram of a water-saving irrigation device for a water supply pipe used in agricultural planting provided in Embodiment 1 of the present invention;

[0025] Figure 2 Fig. is a schematic structural diagram of the connection position between the rotating pipe and the diversion pipe in Embodiment 1 of the present invention;

[0026] Figure 3 Fig. is a side sectional view of the U-shaped pipe and the water connection pipe in Embodiment 1 of the present invention;

[0027] Figure 4 Fig. is a side sectional view of the rotating pipe and the reduction box in Embodiment 1 of the present invention;

[0028] Figure 5 Fig. is a top sectional view of the reduction box in Embodiment 1 of the present invention;

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

[0030] Figure 7 Fig. is Figure 6 the enlarged view of part A in

[0031] Figure 8 Fig. is a schematic structural diagram of a water-saving irrigation device for a water supply pipe used in agricultural planting provided in Embodiment 2 of the present invention;

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

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

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

[0035] Figure 12 Fig. is a schematic internal structure diagram of the irrigation storage tank in Embodiment 2 of the present invention;

[0036] Figure 13 Fig. is Figure 12Enlarged view of part A

[0037] Reference numerals in the above-mentioned drawings:

[0038] 1. Irrigation storage tank; 2. Liquid inlet pipe; 3. U-shaped pipe; 4. Low-pressure pressure sampling pipe; 5. Rotating pipe; 6. Central axis pipe; 7. Reducer; 8. Liquid outlet pipe; 9. Tooth ring; 10. Pressurization housing; 11. Fixed block; 12. Pressurization gear; 13. Diversion pipe; 14. Return water pipe; 15. Micro-sprinkler; 16. Flow control ring; 17. Spring; 18. High-pressure pressure sampling pipe; 19. Fixed ring; 20. Connection housing; 21. Rotary motor; 22. Bevel gear three; 23. Worm; 24. Transmission shaft one; 25. Stepper motor; 26. Transmission disc; 27. Transmission gear two; 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 hole; 36. Transmission rod; 37. Pressurization slurry; 38. Bevel gear one; 39. Bevel gear two; 40. Support bearing; 41. Threaded rod; 42. Slide block; 43. Sleeve; 44. Lead screw; 45. Transmission shaft two; 46. Transmission gear three; 47. Telescopic rod; 48. Bevel gear five; 49. Limit groove; 50. Limit ring; 51. Protection housing; 52. Bevel gear four. Detailed implementation mode

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0041] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship 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 orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] Refer to Figures 1 - 13 as shown below, the following is a preferred embodiment provided by the present invention.

[0043] Embodiment 1: A water-saving irrigation device for agricultural water supply pipes, including an irrigation storage tank 1. An inlet pipe 2 for adding water into it is installed on the irrigation storage tank 1. When the water in the irrigation storage 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 storage tank 1. The return pipes 14 are installed on the side wall near the top of the irrigation storage tank 1, and the outlet pipes 8 are installed on the side wall near the bottom of the irrigation storage tank 1. As Figure 1 shown, the return pipes 14 and the outlet pipes 8 are in one-to-one correspondence. In order to enable the inlet pipe 2 to be stably inserted into the soil, a plurality of fixing blocks 11 are equidistantly installed on the bottom surface of the inlet pipe 2. The fixing blocks 11 can be inserted into the soil to make the entire device more stable. The adjacent two return pipes 14 and the adjacent two outlet pipes 8 are vertically arranged. In this embodiment, two irrigation pipes are fixedly installed between the corresponding return pipes 14 and outlet pipes 8. In this way, a circulating water pipeline is formed among the irrigation storage 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 communicated with its interior. The bottom of the rotating pipe 5 is rotationally connected to the top of the central axis pipe 6 by means of a limit rotating ring. The top of the rotating pipe 5 is also rotationally connected to one end of the U-shaped pipe 3 in the same way. Combining Figure 3 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. In this way, the unsprayed water flows into the return pipe 14 through the U-shaped pipe 3. Designing the return pipe 14 to have an open top can not only achieve the reflux of excess water but also collect rainwater on rainy days. The collected rainwater enters the irrigation storage tank 1 through the return pipe.

[0044] In order to enable the irrigation water to be sprayed on the root and leaf areas of the crops, as Figure 1 shown, in this embodiment, two groups of diversion pipes 13 communicating with the interior of the rotating pipe 5 are fixedly installed on the side wall of the rotating pipe 5 along its height direction. Considering that the rotating pipe 5 can rotate, the number of each group of diversion pipes 13 is set to two. The diversion pipes 13 are vertically arranged with the rotating pipe 5. The end of the diversion pipe 13 is fixedly installed with a micro-sprinkler 15. A flow rate regulating mechanism for regulating the water flow rate entering the diversion pipe 13 is installed at the connection between the diversion pipe 13 and the rotating pipe 5. Combining Figure 2As shown in the figure, the flow regulating mechanism mainly consists of a connecting housing 20, a flow control ring 16, a fixing ring 19, a low-pressure pressure tapping pipe 4, a high-pressure pressure tapping pipe 18, and two springs 17. The connecting housing 20 is fixedly installed at the connection of the rotating pipe 5 and the diversion pipe 13. The two sides of the connecting housing 20 are open and communicate with the diversion pipe 13 and the rotating pipe 5. The flow control ring 16 is slidably installed in the connecting housing 20. Upper and lower sealed chambers are respectively formed between the top and bottom of the flow control ring 16 and the connecting housing 20. The fixing ring 19 is fixedly installed on the opening of the connecting housing 20 and fits against the side wall of the flow control ring 16. The size of the through hole in the middle of the fixing ring 19 is the same as that 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 housing 20. The two ends of the springs 17 are respectively fixedly connected to the flow control ring 16 and the inner side wall of the connecting housing 20. In this embodiment, one end of the high-pressure pressure tapping pipe 18 communicates with the lower chamber of the connecting housing 20, and the other end communicates with the inside of the rotating pipe 5. The horizontal height of the connection is the same as the horizontal height of the connecting housing 20. One end of the low-pressure pressure tapping pipe 4 communicates with the top chamber of the connecting housing 20, and the other end is connected to the bottom of the return pipe 14. Combined with Figure 3 As shown in the figure, since the rotating pipe 5 needs to rotate, the low-pressure pressure tapping pipe 4 is mainly designed in two sections. The connection of the two sections is located at the axis position of the rotating pipe 5 or the U-shaped pipe 3, and one section is inserted into the other section to achieve a rotating connection. Both the low-pressure pressure tapping pipe 4 and the high-pressure pressure tapping pipe 18 are thin pipes. Since there are two groups of diversion pipes 13, in this embodiment, the low-pressure pressure tapping pipe 4 is arranged in a branched form, so that all the low-pressure pressure tapping pipes 4 on one rotating pipe 5 can communicate with the same position at the bottom of the return pipe 14. In this way, the internal pressure in the top chamber of each connecting housing 20 is the same as the internal pressure at the position of the return pipe 14. And the lower chamber of the connecting housing 20 realizes the same pressure as the connection of the rotating pipe 5 through the high-pressure pressure tapping pipe 18. Since the water flow is pressurized and flows upward along the rotating pipe 5, the water flow will be under the action of frictional resistance loss along the way, local resistance loss, and gravity. The closer to the bottom of the diversion pipe 13, the greater the water flow pressure. In this way, the pressure difference between the upper and lower chambers in the connecting housing 20 is greater, the upward translation distance of the flow control ring 16 is greater, the overlapping area of the through holes of the flow control ring 16 and the fixing ring 19 is smaller, and the water flow rate entering the diversion pipe 13 is smaller. In this way, the water flow rate entering the diversion pipe 13 at each height position is the same.

[0045] Combined with Figure 1 、 Figure 4 and Figure 5As shown, in this embodiment, the pressurizing mechanism is fixedly installed on the central shaft tube 6. The pressurizing mechanism can not only pressurize and convey irrigation water, but also drive the rotating tube 5 to rotate, achieving the effect of multi-purpose use of one machine. The pressurizing mechanism mainly consists of a gear ring 9, a second transmission gear 27, a first transmission shaft 24, a power transmission control device, a reduction gearbox 7, a pressurizing housing 10, a worm 23, a reduction device and a pressurizing device; the pressurizing housing 10 is embedded in the central shaft tube 6, the gear ring 9 is fixedly sleeved on the outer side wall of the rotating tube 5, the second transmission gear 27 is sleeved on the first transmission shaft 24, but they rotate independently of each other. Here, it can be combined with Figure 11 As shown, in order to support the second transmission gear 27, the second transmission gear 27 and the first transmission shaft 24 are rotationally connected by means of a limiting ring 50. 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 the pressurizing device is used to pressurize and convey water flow into the diversion 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 rotationally installed in the reduction gearbox 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.

[0046] In this embodiment, the pressurizing device pressurizes by means of a gear pump. The pressurizing device mainly consists of a rotating motor 21 and two pressurizing gears 12. The two pressurizing gears 12 mesh with each other. The rotating motor 21 is fixedly installed on the side wall of the pressurizing housing 10. The two pressurizing gears 12 mesh and are located in the pressurizing housing 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, and the other end of the worm 23 is connected to the inner side wall of the reduction gearbox 7 by means of a bearing; both sides of the central axis of the pressurizing gear 12 are also connected to the inner side wall of the pressurizing housing 10 by means of bearings.

[0047] Since the pressurizing gear 12 rotates at a high speed during the pressurizing process, a reduction device needs to be set up to reduce the rotational speed and make the rotating tube 5 rotate slowly. As Figure 4 and Figure 5 shown, the reduction device is a first transmission gear 28. The first transmission gear 28 meshes with the worm 23. When the pressurizing gear 12 rotates, the transmission mode of the worm 23 and the first transmission gear 28 can reduce the rotational speed of the first transmission shaft 24.

[0048] In order to enable the rotational power of the first transmission shaft 24 to be transmitted to the second transmission gear 27, the power transmission control device mainly consists of a transmission disc 26, a sleeve 43, a lead screw 44 and a stepping motor 25; the transmission disc 26 is sleeved on the first transmission shaft 24 and is connected to the first transmission shaft 24 by means of a spline. Here, it can be combined with Figure 11As shown in the figure, a plurality of limiting grooves 49 are provided on the side wall of the first transmission shaft 24, and the transmission disc 26 can translate along the length direction of the first transmission shaft 24. A limiting ring 50 is provided on the side wall of the transmission disc 26, and the top of the sleeve 43 is located in the limiting ring 50 and is in contact with the transmission disc 26; the stepping motor 25 is embedded in the top of the reduction gearbox 7, and the output end of the stepping motor 25 is fixedly connected to the bottom of the lead screw 44, and the sleeve 43 is sleeved on the lead screw 44; meshing teeth capable of meshing with each other are provided on the side wall of the transmission disc 26 opposite to the second transmission gear 27. When the rotating pipe 5 needs to rotate, the stepping motor 25 drives the lead screw 44 to rotate, the sleeve 43 drives the transmission disc 26 to translate upward, so that the transmission disc 26 meshes with the side wall of the second transmission gear 27. When the first transmission shaft 24 rotates, the power is transmitted to the transmission disc 26, and the transmission disc 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 pipe 5. In order to enable the transmission disc 26 to move up and down smoothly in this embodiment, a telescopic rod 47 is also fixedly installed on the top of the reduction gearbox 7, and the top of the telescopic rod 47 is also located in the transmission disc 26 and is in contact with the transmission disc 26.

[0049] Since the micro-sprinkler irrigation method is adopted in this embodiment for irrigation, in order to avoid clogging of the micro-sprinkler heads 15, in this embodiment, as Figure 6 shown, a filter cylinder 32 is fixedly installed in the irrigation storage tank 1. The top of the filter cylinder 32 is fixedly connected to the top of the irrigation storage tank 1. All surfaces of the filter cylinder 32 are filter meshes. The end of the return water pipe 14 is fixedly connected to the side wall of the filter cylinder 32, so that the water in the return water pipe 14 directly flows into the inner area of the filter cylinder 32, avoiding impurities in the rainwater from entering the irrigation pipe when collecting rainwater on rainy days. During the fertilization process, in order to enable the fertilizer to be fully dissolved in the water, a driving mechanism is provided on the top of the irrigation storage tank 1 in this embodiment. The driving mechanism drives the liquid inlet pipe 2 to rotate. A plurality of liquid outlet holes 35 are provided on the side wall of the liquid inlet pipe 2. At the same time, a plurality of stirring rods 33 are also fixedly installed on the outer side wall of the liquid inlet pipe 2. The plurality of stirring rods 33 are all located in the filter cylinder 32. The purpose of setting them in the filter cylinder 32 is to avoid undissolved fertilizer in the water from directly entering the diversion pipe 13 and causing clogging of the micro-sprinkler heads 15. In this way, the fertilizer can be better irrigated on the crops during irrigation. The liquid outlet holes 35 can allow the externally added irrigation water to directly pass through the rotating liquid inlet pipe 2. In this way, the liquid inlet pipe 2 can not only increase the water volume in the irrigation storage tank 1, but also enable the fertilizer to be fully dissolved in the water. Since the top of the return water pipe 14 in this embodiment is an open design, during fertilization, the staff can pour the fertilizer on the return water pipe 14, and let the return water flow wash the fertilizer into the filter cylinder 32 for stirring.

[0050] In this embodiment, the driving mechanism mainly consists 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 storage 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, 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 ensure that the irrigation pipes far from the irrigation storage tank 1 can also have sufficient water flow, in this embodiment, as Figure 7 shown, a connecting rod 34 is fixedly installed at the bottom of the liquid inlet pipe 2, the bottom of the connecting rod 34 is connected to the bottom of the irrigation storage tank 1 by means of a bearing, and a bevel gear one 38 is fixedly installed on the connecting rod 34. A pressurizing slurry 37 is arranged in each liquid outlet pipe 8, the pressurizing slurry 37 is connected to a transmission rod 36, the transmission rod 36 is connected to a bevel gear two 39, and the bevel gear two 39 meshes with the bevel gear one 38. In this way, when the liquid inlet pipe 2 rotates and stirs, it can drive the connecting rod 34 and the bevel gear one 38 to rotate. Since the bevel gear one 38 drives the bevel gear two 39 to rotate, the bevel gear two 39 drives the pressurizing slurry 37 to rotate through the transmission rod 36, thus realizing the pressurized transmission of the irrigation water. In order to improve the stability of the pressurizing slurry 37, a support bearing 40 is also arranged 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 a rod body, and the support bearing 40 is sleeved on the transmission rod 36.

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

[0053] Working principle: When using this device, turn on the rotary motor 21 and the servo motor 29. The rotary motor 21 drives the liquid inlet pipe 2 to rotate, realizing the stirring of the irrigation water, and pressurizing and transporting the irrigation water to the liquid outlet pipe 8. Through the rotation of the rotary motor 21, the pressurizing gear 12 performs secondary pressurization on the irrigation water. The irrigation water enters the irrigation pipe, and a part of the water will flow into the diversion pipe 13, and the remaining water will return to the irrigation storage tank 1 through the return pipe 14. During the pressurized transportation process, due to the frictional resistance loss along the way, the local resistance loss, and the gravity effect, the closer the diversion pipe 13 is to the return pipe 14, the smaller the pressure at the connection with the rotating pipe 5, and the minimum pressure is at the return pipe 14. At this time, the upper chamber of the connection housing 20 is connected to the low pressure through the low-pressure pressure sampling pipe 4, so the pressure is always at a constant minimum value. The chamber at the bottom of the connection housing 20 is connected to the high-pressure pressure sampling pipe 18, and the high-pressure pressure sampling pipe 18 collects the water flow pressure at the connection position of the diversion pipe 13 and the rotating pipe 5. At this time, the greater the pressure difference between the two chambers of the connection housing 20 closer to the bottom of the rotating pipe 5, the more it will push the flow control ring 16 to move upward. At this time, the overlapping area of the through holes between the flow control ring 16 and the fixed ring 19 is smaller, which will reduce the water flow rate into the diversion pipe 13. And the closer the connection housing 20 is to the top of the rotating pipe 5, the smaller the pressure difference between the upper and lower chambers inside it, so that the overlapping area of the through holes between the flow control ring 16 and the fixed ring 19 is larger, so that the water flow rate of each diversion pipe 13 can be the same, and thus the spraying range of each micro-sprinkler 15 is the same.

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

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

[0056] Combined with Figure 8 、 Figure 10 and Figure 11As shown in the figure, in this embodiment, the pressurizing housing 10 is arranged on the telescopic section of the liquid outlet pipe 8, and the reduction gearbox 7 is fixedly installed on the outer side wall of the pressurizing housing 10. In order to also drive the rotation of the rotating pipe 5 while pressurizing, the reduction device of this embodiment mainly consists of a second transmission shaft 45, a third transmission gear 46, and two fifth bevel gears 48. Both ends of the second transmission shaft 45 are connected to the inner side wall of the reduction gearbox 7 in a bearing manner. The third transmission gear 46 and one of the fifth bevel gears 48 are fixedly sleeved on the second transmission shaft 45. The third transmission gear 46 meshes with the worm 23, and the two fifth bevel gears 48 mesh with each other. The fifth bevel gear 48 is fixedly connected to the bottom of the first transmission shaft 24. It should be noted that as long as the reduction device with different structures can transmit the power of the pressurizing gear 12 to the first transmission shaft 24, it is within the protection scope of this patent.

[0057] In this embodiment, a third bevel gear 22 is fixedly sleeved on the side wall of the liquid inlet pipe 2. The translation mechanism mainly consists of a threaded rod 41, a slider 42, and a fourth bevel gear 52. The slider 42 is fixedly connected to the outer side 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 connection pipe, and the other end is fixedly connected to the fourth bevel gear 52. The fourth bevel gear 52 meshes with the third bevel gear 22. In this way, when the servo motor 29 rotates, it can not only drive the rotation and stirring of the liquid inlet pipe 2, but also drive the rotation of the screw rod, so that the entire irrigation pipe moves along the direction of the return water pipe 14. The servo motor 29 of this embodiment achieves the effects of both stirring and driving the translation of the irrigation pipe at the same time. In this embodiment, in order to prevent the third bevel gear 22 and the fourth bevel gear 52 from coming into contact with water and causing rust, a protective housing 51 is sleeved on the liquid inlet pipe 2 and the threaded rod 41. The third bevel gear 22 and the fourth bevel gear 52 are both located inside the protective housing 51.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle 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).

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