Water-saving sprinkling irrigation device for irrigation water supply

Abstract

The application discloses a water-saving sprinkling irrigation device for irrigation water supply, effectively increases water utilization rate in the inside of the fixed sleeve, and comprises a connecting pipe, a T-shaped pipe and a telescopic assembly, the connecting pipe is connected to the front and back ends of the T-shaped pipe, and the telescopic assembly is connected to the upper side of the T-shaped pipe; the telescopic assembly comprises a fixed sleeve, a first telescopic pipe and a second telescopic pipe, the second telescopic pipe is slidably connected to the inside of the first telescopic pipe, the upper side of the second telescopic pipe is provided with a sprinkler, the bottom of the inside of the fixed sleeve is provided with a one-way water inlet mechanism, and two pressure relief openings are formed in the side wall of the fixed sleeve; the application has novel structure, ingenious design, simple and convenient operation, effectively makes the telescopic process of the device more stable, enables the first telescopic pipe to automatically contract, increases the water spraying area of the sprinkling irrigation, facilitates the connection of the sprinkler, reduces the probability of the occurrence of the jamming phenomenon, and can automatically clean the gap.

Description

Technical Field

[0001] This invention belongs to the technical field of sprinkler irrigation devices, and relates to a water-saving sprinkler irrigation device for irrigation water supply. Background Technology

[0002] Sprinkler irrigation is an advanced irrigation method that uses specialized equipment (such as motors, pumps, and pipelines) to pressurize water or utilize natural drop height to deliver pressurized water to the irrigated area. The water is then sprayed into the air through nozzles, forming fine water droplets that are evenly distributed across the field for irrigation.

[0003] Sprinkler irrigation equipment consists of an inlet pipe, a pump, a water delivery pipe, a distribution pipe, and sprinklers. It can be fixed, semi-fixed, or mobile, and has advantages such as saving water, not damaging soil structure, regulating ground climate, and not being limited by terrain.

[0004] The buried sprinkler system is a type of fixed sprinkler system mentioned above. However, its water supply pipes are buried underground, and the sprinkler pipes use an automatic telescopic structure. When spraying water, the water pressure is used to extend the sprinkler pipes and nozzles out of the ground. After spraying, the sprinkler pipes and nozzles retract back underground using their own weight.

[0005] In related technologies, such as Chinese patent CN205993254U, a multi-section telescopic irrigation device is disclosed. During use, when water passes through the tee and enters the multi-section telescopic irrigation device through the inlet, when the water reaches a certain pressure, the inner tube is lifted, the first and second tension springs are stretched, and the spring is compressed. When the water pressure increases, the middle tube is also lifted. During this process, the first and second tension springs continue to be stretched, and the spring continues to be compressed, and water is sprayed out from the nozzle. When the water source is turned off, the water pressure drops, and the inner tube and middle tube automatically fall back under the force of the first and second tension springs and the spring.

[0006] However, in the use of existing irrigation devices, after irrigation, the water pumped out of the irrigation device will flow back into the delivery pipe, which is a waste of water resources, and the recycling process is prone to jamming. Therefore, there is a need for a water-saving sprinkler irrigation device that can utilize the water stored in the pipe and reduce the occurrence of jamming. Summary of the Invention

[0007] To address the aforementioned problems, this invention proposes a water-saving sprinkler irrigation device for irrigation water supply, which effectively solves the problems in the prior art.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] A water-saving sprinkler irrigation device for irrigation water supply includes a connecting pipe, a T-shaped pipe, and a telescopic component. The connecting pipe is connected to the front and rear ends of the T-shaped pipe, and the telescopic component is connected to the upper side of the T-shaped pipe.

[0010] The telescopic assembly includes a fixed sleeve, a first telescopic tube, and a second telescopic tube. The lower side of the fixed sleeve is connected to the upper side of the T-shaped tube. The first telescopic tube is slidably connected inside the fixed sleeve, and the second telescopic tube is slidably connected inside the first telescopic tube. A sprinkler is provided on the upper side of the second telescopic tube. A one-way water inlet mechanism is provided at the bottom of the inner side of the fixed sleeve. Two pressure reducing ports are opened on the side wall of the fixed sleeve.

[0011] Preferably, the one-way water inlet mechanism includes a first fixed rod, with semicircular plates rotatably connected to the front and rear sides of the upper part of the first fixed rod, a limiting ring fixedly connected to the fixed sleeve on the lower side of the first fixed rod, and a first limiting block fixedly connected to the upper side of the first fixed rod for limiting the opening angle of the semicircular plates.

[0012] Preferably, a connecting sleeve is provided between the T-shaped tube and the fixed sleeve and the connecting tube.

[0013] Preferably, a first vertical rod is fixedly connected inside the fixed sleeve, a first limiting sleeve is slidably connected to the middle of the first vertical rod, and a first connecting rod is fixedly connected to the front and rear sides of the first limiting sleeve. The side of each first connecting rod away from the first limiting sleeve is fixedly connected to the inner wall of the first telescopic tube.

[0014] Preferably, a first sliding groove is provided on each of the front and rear sides of the first vertical rod, a first sliding block is fixedly connected inside the first limiting sleeve, the first sliding block is slidably connected inside the corresponding first sliding groove, a first limiting piece is fixedly connected to the upper side of the first vertical rod, and a first spring is provided on the outer side of the first vertical rod, with the upper and lower ends of the first spring abutting against the first limiting piece and the first limiting sleeve, respectively.

[0015] Preferably, a second vertical rod is fixedly connected to the upper side of each of the first connecting rods, a second limiting sleeve is fitted onto the outer side of each of the second vertical rods, each of the second limiting sleeves is fixedly connected to the inner wall of the second telescopic tube, a second sliding groove is provided on the outer side of each of the second vertical rods, a second sliding block is fixedly connected to the inside of each of the second limiting sleeves, each of the second sliding blocks is slidably connected to the corresponding second sliding groove, a second limiting plate is fixedly connected to the upper side of each of the second connecting rods, and a second spring is provided on the outer side of each of the second vertical rods, with the upper and lower ends of the second spring abutting against the second limiting plate and the second limiting sleeve, respectively.

[0016] Preferably, a cover plate is fixedly connected to the upper side of the second telescopic tube, and a threaded hole is opened in the middle of the cover plate, the inside of which is threadedly connected to the sprinkler.

[0017] Preferably, the upper side of the fixed sleeve is provided with a liquid storage chamfer, the outer wall of the first telescopic tube is provided with a plurality of guide grooves for rinsing the inside of the liquid storage chamfer, and the bottom of the first telescopic tube is provided with a rotatable rotating ring, and the outer side of the rotating ring is provided with a sealing groove corresponding to the guide groove.

[0018] Preferably, a connecting ring is fixedly connected to the upper side of the rotating ring, and the upper part of the connecting ring is rotatably connected to the bottom of the first telescopic tube. A plurality of third sliding blocks are fixedly connected to the outer side of the rotating ring. The inside of the fixed sleeve is provided with third sliding grooves corresponding to the third sliding blocks one by one. Under the action of the third sliding blocks and the third sliding grooves, the first telescopic tube moves up and down to form a rotating ring structure.

[0019] Preferably, a sealing ring is rotatably connected to the lower part of the inner side of the fixed sleeve, and a pressure reducing hole adapted to the pressure reducing port is opened on the sealing ring. A toggle rod is fixedly connected to the lower side of the rotating ring, and a tapered hole adapted to the toggle rod is opened on the upper side of the sealing ring.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention has a first telescopic pipe and a second telescopic pipe. By setting the first telescopic pipe and the second telescopic pipe, after a high-pressure water source is pumped into the connecting pipe and the T-shaped pipe, the first telescopic pipe and the second telescopic pipe will extend upward under the action of the internal water pressure, which will drive the sprinkler to move upward and extend the sprinkler above the crop height, so as to facilitate sprinkler irrigation.

[0022] 2. The present invention has a one-way water inlet mechanism. After the sprinkler irrigation operation is completed, the water pump system can be turned off. At this time, the water pressure inside the fixed sleeve decreases. Under the action of the one-way water inlet mechanism, the water flow inside the fixed sleeve is cut off, so that the water stored inside the fixed sleeve, the first telescopic pipe and the second telescopic pipe flows out from between the first telescopic pipe and the fixed sleeve during the shortening of the first telescopic pipe. This can reduce the probability of soil or other foreign objects getting stuck between the first telescopic pipe and the fixed sleeve. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the exploded structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the internal structure of the fixed sleeve in this invention.

[0026] Figure 4 This is a schematic diagram of the unidirectional water inlet mechanism in this invention.

[0027] Figure 5 This is a schematic diagram of the rotating ring in this invention.

[0028] Figure 6 For the present invention Figure 4 A magnified view of a portion of region A in the middle.

[0029] Figure 7 For the present invention Figure 4 A magnified view of a portion of region B in the middle.

[0030] In the diagram: 1. Connecting pipe; 2. T-shaped pipe; 3. Fixing sleeve; 4. First telescopic pipe; 5. Second telescopic pipe; 6. Sprinkler; 7. One-way water inlet mechanism; 8. Pressure reducing port; 9. First fixing rod; 10. Semicircular plate; 11. Limiting ring; 12. First limiting block; 13. Connecting sleeve; 14. First vertical rod; 15. First limiting sleeve; 16. First connecting rod; 17. First sliding groove; 18. First sliding block; 19. First limiting piece; 20. 21. First spring; 22. Second vertical rod; 23. Second limiting sleeve; 24. Second sliding groove; 25. Second sliding block; 26. Second limiting piece; 27. Second spring; 28. Cover plate; 29. ​​Threaded hole; 30. Liquid storage chamfer; 31. Guide groove; 32. Rotating ring; 33. Sealing groove; 34. Connecting ring; 35. Third sliding block; 36. Sealing ring; 37. Pressure reducing hole; 38. Actuating rod; 39. Conical hole. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The following is in conjunction with the appendix Figures 1 to 7 The specific embodiments of the present invention will be described in further detail below.

[0033] Depend on Figures 1 to 7 As shown, the present invention includes a connecting pipe 1, a T-shaped pipe 2, and a telescopic assembly. In order to increase the irrigation area, the connecting pipe 1 is connected to the front and rear ends of the T-shaped pipe 2, and the telescopic assembly is connected to the upper side of the T-shaped pipe 2.

[0034] The telescopic assembly includes a fixed sleeve 3, a first telescopic tube 4, and a second telescopic tube 5. The lower side of the fixed sleeve 3 is connected to the upper side of the T-shaped tube 2. The first telescopic tube 4 is slidably connected inside the fixed sleeve 3. The second telescopic tube 5 is slidably connected inside the first telescopic tube 4. A sprinkler 6 is provided on the upper side of the second telescopic tube 5. A one-way water inlet mechanism 7 is provided at the bottom of the inner side of the fixed sleeve 3. Two pressure reducing ports 8 are opened on the side wall of the fixed sleeve 3.

[0035] It should be noted that the present invention also includes a water pump system for pumping high-pressure water into the interior of the connecting pipe 1. In addition, in the embodiments, multiple telescopic components can be connected through multiple connecting pipes 1 and multiple T-shaped pipes 2, thereby facilitating the networking of irrigation water sources and enabling large-area fields to be irrigated by sprinkler 6.

[0036] In use, by setting the first telescopic pipe 4 and the second telescopic pipe 5, after high-pressure water is pumped into the inside of the connecting pipe 1 and the T-shaped pipe 2, the first telescopic pipe 4 and the second telescopic pipe 5 will extend upward under the action of internal water pressure, which will drive the sprinkler 6 to move upward, so that the sprinkler 6 protrudes above the crop height, making it convenient for sprinkler irrigation. After the sprinkler irrigation is completed, the water pump system can be turned off. At this time, the water pressure inside the fixed sleeve 3 decreases. Under the action of the one-way water inlet mechanism 7, the water flow inside the fixed sleeve 3 is cut off, so that the water stored inside the fixed sleeve 3, the first telescopic pipe 4 and the second telescopic pipe 5 flows out from between the first telescopic pipe 4 and the fixed sleeve 3 during the shortening of the first telescopic pipe 4, thereby reducing the probability of soil or other foreign objects getting stuck between the first telescopic pipe 4 and the fixed sleeve 3.

[0037] It should be noted that when the first telescopic pipe 4 is in the retracted state (i.e., when it is at its lowest position relative to the fixed sleeve 3), the pressure reducing port 8 is in the open state. This is used to slowly discharge the remaining liquid inside the fixed sleeve 3 after irrigation, allowing the liquid inside the fixed sleeve 3 to enter the irrigated land, reducing the backflow of water through the connecting pipe 1, thereby improving the utilization rate of water resources and achieving the purpose of water conservation. When irrigation is required to pressurize the inside of the fixed sleeve 3, the water pressure inside the fixed sleeve 3 will continue to rise due to the relatively small inner diameter of the pressure reducing port 8, which will drive the first telescopic pipe 4 to rise. After the first telescopic pipe 4 rises, the pressure reducing port 8 will be blocked, thereby reducing the pressure leakage inside the fixed sleeve 3.

[0038] Furthermore, by Figures 1 to 7 As shown, in order to increase the water utilization rate inside the fixed sleeve 3, the one-way water inlet mechanism 7 includes a first fixed rod 9. A semi-circular plate 10 is rotatably connected to the front and rear sides of the upper part of the first fixed rod 9. A limiting ring 11 fixedly connected to the fixed sleeve 3 is provided on the lower side of the first fixed rod 9. A first limiting block 12 for limiting the opening angle of the semi-circular plate 10 is fixedly connected to the upper side of the first fixed rod 9.

[0039] In use, by setting up a semicircular plate 10, in its natural state, it will fit against the limiting ring 11 due to its own weight, thereby preventing water on the upper side of the semicircular plate 10 from flowing downward. After a high-pressure water source passes through the lower side of the semicircular plate 10, the water pressure on the lower side is relatively large, which will push the semicircular plate 10 to rotate upward. At this time, under the action of the first limiting block 12, the maximum opening angle of the semicircular plate 10 can be limited, thereby reducing the probability that the semicircular plate 10 will not be able to close due to its own weight because the opening angle is too large.

[0040] Furthermore, by Figures 1 to 7 As shown, in order to facilitate the connection and assembly of multiple devices, a connecting sleeve 13 is provided between the T-tube 2 and the fixed sleeve 3 and the connecting tube 1.

[0041] It should be noted that both ends of the connecting sleeve 13 are connected to the fixed sleeve 3 and the connecting pipe 1 through grooved connections, thereby enabling multiple devices to be connected end to end for sprinkler irrigation operations over a large area.

[0042] Furthermore, by Figures 1 to 7 As shown, in order to make the extension and retraction process of the device more stable, a first vertical rod 14 is fixedly connected inside the fixed sleeve 3. The first vertical rod 14 is fixedly connected to the middle of the upper side of the first limiting block 12. A first limiting sleeve 15 is slidably connected to the middle of the first vertical rod 14. A first connecting rod 16 is fixedly connected to each of the front and rear sides of the first limiting sleeve 15. The side of each first connecting rod 16 away from the first limiting sleeve 15 is fixedly connected to the inner wall of the first telescopic tube 4.

[0043] Furthermore, by Figures 1 to 7 As shown, in order to enable the first telescopic tube 4 to retract automatically, a first sliding groove 17 is provided on each of the front and rear sides of the first vertical rod 14. A first sliding block 18 is fixedly connected inside the first limiting sleeve 15. The first sliding block 18 is slidably connected inside the corresponding first sliding groove 17. A first limiting piece 19 is fixedly connected to the upper side of the first vertical rod 14. A first spring 20 is provided on the outer side of the first vertical rod 14. The upper and lower ends of the first spring 20 abut against the first limiting piece 19 and the first limiting sleeve 15, respectively.

[0044] In use, by setting the first vertical rod 14, the first limiting sleeve 15 can slide up and down on the first vertical rod 14. Since the first telescopic tube 4 is fixedly connected to the first limiting sleeve 15 through the first connecting rod 16, the first telescopic tube can be more stable during the up and down movement. Under the action of the first sliding groove 17 and the first sliding block 18, the highest and lowest positions of the first limiting sleeve 15 can be limited. During the process of the first telescopic tube 4 rising, the first spring 20 will be compressed and stored, so that after the pressure inside the fixed sleeve 3 decreases, the first telescopic tube 4 can be driven to move downward and reset.

[0045] Furthermore, by Figures 1 to 7 As shown, in order to increase the spraying area of ​​the sprinkler, a second vertical rod 21 is fixedly connected to the upper side of each first connecting rod 16, a second limiting sleeve 22 is fitted on the outer side of each second vertical rod 21, each second limiting sleeve 22 is fixedly connected to the inner wall of the second telescopic tube 5, a second sliding groove 23 is opened on the outer side of each second vertical rod 21, a second sliding block 24 is fixedly connected inside each second limiting sleeve 22, each second sliding block 24 is slidably connected to the corresponding second sliding groove 23, a second limiting piece 25 is fixedly connected to the upper side of each second connecting rod, and a second spring 26 is provided on the outer side of each second vertical rod 21. The upper and lower ends of the second spring 26 abut against the second limiting piece 25 and the second limiting sleeve 22, respectively.

[0046] In use, since the second vertical rod 21 is fixedly connected to the first connecting rod 16, the second vertical rod 21 will drive the second telescopic tube 5 to move up and down together during the up and down movement of the first telescopic tube 4. In addition, under the action of the second limiting sleeve 22, the second telescopic tube 5 can move up and down inside the first telescopic tube 4. During this process, the second sliding block 24 will slide inside the second sliding groove 23, thereby limiting the upper and lower movement limit distance of the second sliding block 24 through the second sliding groove 23. When the second telescopic tube 5 rises relative to the first telescopic tube 4, the second spring 26 will compress and store force, so that the second telescopic tube 5 will move down and reset itself under the action of the second spring 26 after the pressure inside the fixed sleeve 3 decreases.

[0047] It should be noted that in this embodiment, there is one first spring 20 and two second springs 26. The first spring 20 and the second spring 26 have the same elastic coefficient. When the pressure inside the fixed sleeve 3 is just enough to make the first telescopic rod reach its highest position, the distance the first telescopic tube 4 rises relative to the fixed sleeve 3 is greater than the distance the second telescopic tube 5 rises relative to the first telescopic tube 4. As the water pressure continues to rise, the second telescopic tube 5 will rise further. At this time, the extension height of the second telescopic tube 5 can be controlled by adjusting the pressure to meet the appropriate sprinkler adjustment requirements. Under normal circumstances, the water pressure inside the fixed sleeve 3 is excessive, that is, both the first telescopic tube 4 and the second telescopic tube 5 are at their highest positions. After the water pressure decreases, the second telescopic tube 5 will first move downward slowly. After it descends a certain distance relative to the first telescopic tube 4, the first telescopic tube 4 will move downward together with the second telescopic tube 5.

[0048] Furthermore, by Figures 1 to 7 As shown, to facilitate the connection of the sprinkler 6, a cover plate 27 is fixedly connected to the upper side of the second telescopic tube 5. A threaded hole 28 is provided in the middle of the cover plate 27, and the inside of the threaded hole 28 is threadedly connected to the sprinkler 6. The sprinkler 6 is a MegaNet sprinkler head. Specifically, in this embodiment, the sprinkler 6 is a MegaNet 24D sprinkler head. Other threads are connected to the cover plate 27, so that sprinkler irrigation can be carried out under the action of high pressure water source. This is the prior art and will not be described in detail here.

[0049] Furthermore, by Figures 1 to 7 As shown, in order to reduce the probability of jamming, a liquid storage chamfer 29 is provided on the upper side of the fixed sleeve 3, and multiple guide grooves 30 are provided on the outer wall of the first telescopic tube 4 for rinsing the inside of the liquid storage chamfer 29. Each guide groove 30 is spiral in shape. A rotatable rotating ring 31 is provided at the bottom of the first telescopic tube 4, and a sealing groove 32 corresponding to the guide groove 30 is provided on the outer side of the rotating ring 31.

[0050] In use, by setting the liquid storage chamfer 29, when liquid flows out between the first telescopic tube 4 and the fixed sleeve 3 during the operation of the device, the liquid will be stored under the action of the liquid storage chamfer 29, so that there is always liquid between the liquid storage chamfer 29 and the first telescopic tube 4. This continuously moistens the gap between the liquid storage chamfer 29 and the first telescopic tube 4, reducing the probability of the first telescopic tube 4 getting stuck between itself and the fixed sleeve 3 during the descent of the first telescopic tube 4. During the raising and lowering of the first telescopic tube 4, the rotating ring 31 will... Specifically, during the ascent and descent of the first telescopic tube 4, the angle of the rotating ring 31 allows the sealing groove 32 to connect precisely with the corresponding guide groove 30, thereby allowing the water flow inside the fixed sleeve 3 to enter the liquid storage chamfer 29 through the guide groove 30. When the first telescopic tube 4 is at its highest and lowest positions, the angle of the rotating ring 31 allows the sealing groove 32 to be disconnected from the guide groove 30, that is, the rotating ring 31 can block the bottom of the guide groove 30, so that the water flow inside the fixed sleeve 3 will not flow out through the guide groove 30.

[0051] It should be noted that during the production of this device, tolerances exist for each component. Specifically, in this device, the connection between the fixed sleeve 3 and the first telescopic tube 4, and between the first telescopic tube 4 and the second telescopic tube 5, is made by interference fit to achieve a good lifting effect. Therefore, during the use of the device for irrigation, leakage will inevitably occur from the gaps. Thus, after the high-pressure water pump is turned off after irrigation, and the semicircular plate 10 rotates downward to engage with the sealing ring 36, the second telescopic tube 5 will move downward under the action of the second spring 26, thus connecting the fixed sleeve 3, the first telescopic tube 4, and the second telescopic tube 5. Water inside the shrink tube 5 slowly drains out from the gap. This process continuously wets the debris (especially soil) in the gap. When the first telescopic tube 4 begins to move downward, it will drive the rotating ring 31 to rotate, thereby connecting the sealing groove 32 with the guide groove 30. Water inside the fixed sleeve 3, the first telescopic tube 4 and the second telescopic tube 5 can be quickly drained through the guide groove 30. Through the spiral design of the guide groove 30, when the water flows out, the water will rotate inside the liquid storage chamfer 29, thereby flushing out the debris in the gap and reducing the probability of jamming during the shrinkage process.

[0052] It should be understood that during the use of the device, since the overall height of the fixed sleeve 3 is generally half-buried in the soil, the space between the fixed sleeve 3 and the first telescopic tube 4 inside is most easily blocked by soil and other debris. Therefore, in this embodiment, only the outer wall of the first telescopic tube 4 is provided with a guide groove 30, and the gap between the fixed sleeve 3 and the first telescopic tube 4 is cleaned with care except for trickle wetting.

[0053] Furthermore, by Figures 1 to 7As shown, in order to automatically clean the gaps, a connecting ring 33 is fixedly connected to the upper side of the rotating ring 31. The upper part of the connecting ring 33 is rotatably connected to the bottom of the first telescopic tube 4. Multiple third sliding blocks 34 are fixedly connected to the outer side of the rotating ring 31. The inside of the fixed sleeve 3 is provided with third sliding grooves 35 corresponding to the third sliding blocks 34. Under the action of the third sliding blocks 34 and the third sliding grooves 35, the first telescopic tube 4 moves up and down to form the structure of rotating ring 31 rotating.

[0054] It should be noted that the cross-section of the connecting ring 33 is a trapezoid with a larger top and a smaller bottom, so that the connecting ring 33 and the rotating ring 31 can rotate coaxially relative to the bottom of the first telescopic tube 4. During the up-and-down movement of the first telescopic tube 4, under the action of the third sliding groove 35, the third sliding block 34 will rotate horizontally while moving up and down. Specifically, the third sliding groove 35 includes a first bend, a vertical part and a second bend that are connected end to end from top to bottom. When the third sliding block 34 is in the vertical part, the angle of the rotating ring 31 is just enough to connect the sealing groove 32 with the bottom of the guide groove 30. When the third sliding block 34 passes through the second bend and the third bend, it will drive the rotating ring 31 to rotate, thereby sealing the bottom of the guide groove 30 through the rotating ring 31.

[0055] Similarly, in order to clean the gap between the first telescopic pipe 4 and the second telescopic pipe 5, in another embodiment, the outer side of the second telescopic pipe 5 is also provided with a guide groove 30 of the same shape. The lower outer side of the second telescopic pipe 5 is also rotatably connected to a rotating ring 31 and a third sliding block 34 through a connecting ring 33. The inner side wall of the first telescopic pipe 4 is also provided with a corresponding third sliding groove 35. This allows water to flow through the corresponding guide groove 30 to clean the gap between the first telescopic pipe 4 and the second telescopic pipe 5 and the guide groove 30 during the up-and-down movement of the second telescopic pipe 5 relative to the first telescopic pipe 4.

[0056] Furthermore, by Figures 1 to 7 As shown, in order to automatically drain the water inside the fixed sleeve 3, a sealing ring 36 is rotatably connected to the lower part of the inner side of the fixed sleeve 3. The sealing ring 36 is provided with a pressure reducing hole 37 that matches the pressure reducing port 8. A lever 38 is fixedly connected to the lower side of the rotating ring 31. A tapered hole 39 that matches the lever 38 is provided on the upper side of the sealing ring 36.

[0057] When in use, when the third sliding block 34 is at the lowest point of the vertical part of the third sliding groove 35, the lower part of the middle of the actuating rod 38 is exactly engaged with the middle part of the conical hole 39. When the third sliding block 34 moves in the second bent plate of the third sliding groove 35, the sealing ring 36 will be rotated by the engagement of the actuating rod 38 and the conical hole 39, so that the pressure relief hole 37 and the pressure relief port 8 are aligned. This allows excess water inside the fixed sleeve 3 to be discharged through the pressure relief hole 37 and the pressure relief port 8, keeping the inside of the fixed sleeve 3 clean.

[0058] It should be understood that in existing multi-section telescopic irrigation devices, after the high-pressure water pump is turned off, the water inside will flow back into the water delivery pipe, which will prevent the water inside the irrigation device from flowing out, resulting in a waste of the pumped water resources. This device improves the utilization rate of the pumped water resources by reusing the water inside the fixed sleeve 3 for gap cleaning and draining all the water stored inside the fixed sleeve 3 to the irrigated land, thereby achieving the purpose of water conservation.

[0059] When using this invention, firstly, by setting up a first telescopic pipe 4 and a second telescopic pipe 5, high-pressure water is pumped into the inside of the connecting pipe 1 and the T-shaped pipe 2. Under the action of the internal water pressure, the first telescopic pipe 4 and the second telescopic pipe 5 will extend upward, which will drive the sprinkler 6 to move upward, extending the sprinkler 6 above the crop height for easy sprinkler irrigation. After the sprinkler irrigation is completed, the water pump system can be turned off. At this time, the water pressure inside the fixed sleeve 3 decreases. Under the action of the one-way water inlet mechanism 7, the water flow inside the fixed sleeve 3 is cut off, so that the water stored inside the fixed sleeve 3, the first telescopic pipe 4, and the second telescopic pipe 5 flows out from between the first telescopic pipe 4 and the fixed sleeve 3 during the shortening of the first telescopic pipe 4. This can reduce the probability of soil or other foreign objects getting stuck between the first telescopic pipe 4 and the fixed sleeve 3.

[0060] This invention features a novel structure, ingenious design, and simple and convenient operation. Through this design, it effectively achieves the goal of increasing the irrigation area, increases the water utilization rate inside the fixed sleeve 3, makes the extension and retraction process of the device more stable, enables the first telescopic tube 4 to retract automatically, increases the water spraying area, facilitates the connection of the sprinkler 6, reduces the probability of jamming, and can automatically clean the gaps.

[0061] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water-saving sprinkler irrigation device for irrigation water supply, comprising a connecting pipe, a T-pipe, and a telescopic assembly, characterized in that: The connecting pipe is connected to the front and rear ends of the T-shaped tube, and the telescopic component is connected to the upper side of the T-shaped tube; The telescopic assembly includes a fixed sleeve, a first telescopic tube, and a second telescopic tube. The lower side of the fixed sleeve is connected to the upper side of the T-shaped tube. The first telescopic tube is slidably connected inside the fixed sleeve, and the second telescopic tube is slidably connected inside the first telescopic tube. A sprinkler is provided on the upper side of the second telescopic tube. A one-way water inlet mechanism is provided at the bottom of the inner side of the fixed sleeve. Two pressure reducing ports are opened on the side wall of the fixed sleeve. The upper side of the fixed sleeve is provided with a liquid storage chamfer, and the outer wall of the first telescopic tube is provided with a plurality of guide grooves for rinsing the inside of the liquid storage chamfer. The bottom of the first telescopic tube is provided with a rotatable rotating ring, and the outer side of the rotating ring is provided with a sealing groove corresponding to the guide groove. A connecting ring is fixedly connected to the upper side of the rotating ring. The upper part of the connecting ring is rotatably connected to the bottom of the first telescopic tube. A plurality of third sliding blocks are fixedly connected to the outer side of the rotating ring. The inside of the fixed sleeve is provided with third sliding grooves corresponding to the third sliding blocks one by one. During the up and down movement of the first telescopic tube, under the action of the third sliding blocks and the third sliding grooves, the third sliding blocks move up and down while the rotating ring rotates in the horizontal direction. A sealing ring is rotatably connected to the lower part of the inner side of the fixed sleeve. A pressure-reducing hole adapted to the pressure-reducing port is opened on the sealing ring. A toggle rod is fixedly connected to the lower side of the rotating ring. A tapered hole adapted to the toggle rod is opened on the upper side of the sealing ring.

2. The water-saving sprinkler irrigation device for irrigation water supply according to claim 1, characterized in that: The one-way water inlet mechanism includes a first fixed rod, with semicircular plates rotatably connected to the front and rear sides of the upper part of the first fixed rod. A limiting ring fixedly connected to the fixed sleeve is provided on the lower side of the first fixed rod, and a first limiting block for limiting the opening angle of the semicircular plates is fixedly connected to the upper side of the first fixed rod.

3. The water-saving sprinkler irrigation device for irrigation water supply according to claim 1, characterized in that: A connecting sleeve is provided between the T-shaped tube and the fixed sleeve and the connecting tube.

4. The water-saving sprinkler irrigation device for irrigation water supply according to claim 1, characterized in that: The fixed sleeve is internally fixedly connected to a first vertical rod, and a first limiting sleeve is slidably connected to the middle of the first vertical rod. A first connecting rod is fixedly connected to the front and rear sides of the first limiting sleeve, and the side of each first connecting rod away from the first limiting sleeve is fixedly connected to the inner wall of the first telescopic tube.

5. A water-saving sprinkler irrigation device for irrigation water supply according to claim 4, characterized in that: The first vertical rod has a first sliding groove on each of its front and rear sides. The first limiting sleeve has a first sliding block fixedly connected inside. The first sliding block is slidably connected inside the corresponding first sliding groove. The upper side of the first vertical rod has a first limiting piece fixedly connected. The outer side of the first vertical rod has a first spring. The upper and lower ends of the first spring abut against the first limiting piece and the first limiting sleeve, respectively.

6. A water-saving sprinkler irrigation device for irrigation water supply according to claim 4, characterized in that: Each of the first connecting rods is fixedly connected to a second vertical rod on its upper side. Each of the second vertical rods is fitted with a second limiting sleeve on its outer side. Each of the second limiting sleeves is fixedly connected to the inner wall of the second telescopic tube. Each of the second vertical rods is provided with a second sliding groove on its outer side. Each of the second limiting sleeves is fixedly connected to a second sliding block inside. Each of the second sliding blocks is slidably connected to the corresponding second sliding groove. Each of the second vertical rods is fixedly connected to a second limiting plate on its upper side. Each of the second vertical rods is provided with a second spring on its outer side. The upper and lower ends of the second spring abut against the second limiting plate and the second limiting sleeve, respectively.

7. A water-saving sprinkler irrigation device for irrigation water supply according to claim 1, characterized in that: A cover plate is fixedly connected to the upper side of the second telescopic tube. A threaded hole is opened in the middle of the cover plate, and the inside of the threaded hole is threadedly connected to the sprinkler.

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