An adjustable intelligent moisture absorption drip irrigation belt

Abstract

The utility model belongs to the field of crop drip irrigation technology, especially intelligent moisture absorption drip irrigation tape of adjustable control is provided, when the prior art device is used, cannot according to real-time environmental information such as soil and meteorology dynamic adjustment irrigation strategy, and, the single function of the existing drip irrigation pipe structure, only can realize water conveyance irrigation, cannot carry out additional supplement to the problem of water, the utility model discloses the following scheme, including bottom plate, when the soil humidity changes, the humidity sensing block drive T type trigger lever linkage second wedge block, through the slope cooperation of first wedge block and promote linkage lever, drive the conical flow control valve core in drip irrigation head along the flow control hole of annular flow control platform sliding, dynamically change drip irrigation flow, break the limitation of traditional drip irrigation fixed mode, realize the " soil dry then increase flow, soil wet then reduce flow " on-demand control, accurate adaptation arid and semiarid sandy land area different vegetation, different regional differentiation water demand.

Description

Technical Field

[0001] This utility model relates to a drip irrigation device, specifically an adjustable intelligent moisture-absorbing drip irrigation tape, belonging to the field of crop drip irrigation technology. Background Technology

[0002] In arid and semi-arid sandy areas, influenced by temperate continental climates, annual precipitation is scarce and extremely unevenly distributed. Annual evaporation is often several times or even dozens of times higher than precipitation. At the same time, the region experiences large diurnal temperature variations and frequent sandstorms. The soil is predominantly sandy—with coarse particles, large pores, and extremely poor water and fertilizer retention capacity. Water seeps into the soil and is easily infiltrated or evaporated by strong winds, resulting in a long-term arid state for the surface and shallow soil. This creates an extreme growing environment characterized by "water scarcity, drought, and difficulty in water storage." Under these conditions, vegetation growth faces severe challenges. To alleviate the water shortage problem in sandy vegetation, existing irrigation technologies have been upgraded from traditional flood irrigation and sprinkler irrigation to drip irrigation. Drip irrigation delivers water precisely to the vicinity of plant roots through water pipelines, greatly improving water resource utilization and adapting to the water requirements of sandy vegetation to a certain extent.

[0003] In existing technologies, such as the drip irrigation device disclosed in CN220191691U, the drip irrigation components are designed to facilitate user operation and reduce cleaning frequency. The connecting pipe and return pipe can increase the irrigation area and improve efficiency. However, these devices cannot dynamically adjust irrigation strategies based on real-time environmental information such as soil and weather conditions. Furthermore, existing drip irrigation pipes have a limited function, only capable of delivering water for irrigation and unable to provide additional water replenishment. Summary of the Invention

[0004] This invention addresses the problems of existing devices being unable to dynamically adjust irrigation strategies based on real-time environmental information such as soil and weather conditions, and the limited functionality of existing drip irrigation pipes, which can only deliver water for irrigation and cannot provide additional water replenishment. It provides an adjustable intelligent moisture-absorbing drip irrigation tape.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: an adjustable intelligent moisture-absorbing drip irrigation tape, including a base plate, with supporting legs fixedly connected in a circular array on one side of the upper surface of the base plate, a conical water tank fixedly connected to the surface of the supporting legs, a motor box fixedly connected to the right side of the upper surface of the base plate near the conical water tank, a water pump fixedly installed inside the motor box, an inlet pipe fixedly connected to the inlet end of the water pump, the inlet pipe being fixedly connected to the bottom of the conical water tank, an outlet pipe fixedly connected to the outlet end of the water pump, and a multi-port pipe fixedly connected to the end of the outlet pipe; An inner water supply main pipe is fixedly connected to the surface of the multi-channel pipe at equal intervals. Connectors are fixedly connected symmetrically at equal intervals on the side surface of the inner water supply main pipe. A drip irrigation head is provided on the outside of each connector. A humidity detection box is provided on the outside of two adjacent drip irrigation heads on the same side. A trigger unit for changing the flow rate of the drip irrigation head is provided between the humidity detection box and the drip irrigation head. An isolation tube is fixedly connected to the upper surface of the inner water supply main pipe at equal intervals. A temporary storage tube is fixedly connected to the upper end of the isolation tube. A condensation unit for condensing water vapor in the air into water is provided on the surface of the temporary storage tube.

[0006] As a further improvement of this utility model: a filter basket is inserted into the upper surface of the conical water tank, and the filter basket and the conical water tank are slidably and detachably connected.

[0007] As a further improvement of this utility model: a solar power supply module is fixedly connected between two adjacent support legs. The solar power supply module consists of a solar panel, a battery, and a charge / discharge controller.

[0008] As a further embodiment of this utility model: a middle layer elastic support net is fixedly sleeved on the outer surface of the inner water supply main pipe, and an outer layer moisture-absorbing expansion pipe is fixedly sleeved on the outer surface of the middle layer elastic support net. Water guide holes are opened near the bottom surface of both the inner water supply main pipe and the outer layer moisture-absorbing expansion pipe.

[0009] As a further embodiment of this utility model: the condensation unit includes a condensation funnel, heat sinks, an ultra-fine nylon dustproof mesh, a metal heat-conducting rod, and a central fixing plate. The condensation funnel is fixedly connected to the upper surface of the temporary storage tube, and the condensation funnel and the temporary storage tube are connected in communication. The heat sinks are fixedly connected to the outer surface of the condensation funnel in a circular array. The central fixing plate is fixedly connected to the inner bottom surface of the condensation funnel. The metal heat-conducting rod is fixedly connected to the surface of the central fixing plate. The bottom end of the metal heat-conducting rod is provided with a pointed tip. The surface of the condensation funnel is also fixedly connected to an ultra-fine nylon dustproof mesh.

[0010] As a further improvement of this utility model: a branch pipe check valve is fixedly connected inside the isolation pipe. The branch pipe check valve is a silicone check valve, which can only allow the condensate in the temporary storage pipe to flow into the inner water supply main pipe.

[0011] As a further embodiment of this utility model: a metal tube is fixedly connected to one end of the drip irrigation head, and an elastic retaining ring is fixedly connected to the inner wall of the connector, with the metal tube connected to the connector through the elastic retaining ring.

[0012] As a further embodiment of this utility model: the triggering unit includes an annular flow limiting platform, a flow limiting orifice, a conical flow limiting valve core, a limiting collar, a linkage rod, a first wedge block, an arc-shaped fixing block, and a first return spring. The annular flow limiting platform is fixedly connected to the inside of the drip head near the metal cannula. A flow limiting orifice is opened at the center of the annular flow limiting platform. The limiting collar is fixedly connected to the side of the drip head away from the metal cannula. The linkage rod is slidably connected to the center of the limiting collar. The conical flow limiting valve core is slidably disposed inside the drip head. One end of the linkage rod extends into the inside of the drip head. The end of the linkage rod extending into the inside of the drip head is fixedly connected to the conical flow limiting valve core. The arc-shaped fixing block is fixedly connected to one side of the inner wall of the drip head. The first return spring is fixedly connected between the arc-shaped fixing block and the conical flow limiting valve core, and the first return spring is sleeved on the outside of the linkage rod. The first wedge block is fixedly connected to the end of the linkage rod away from the conical flow limiting valve core.

[0013] As a further embodiment of this utility model: the triggering unit also includes a humidity sensing block, a sealing cover, a T-shaped trigger rod, a second return spring, a rectangular fixing rod, and a second wedge block. The humidity sensing block is fixedly connected to the inner bottom of the humidity detection box. The sealing cover is threaded onto the surface of the humidity detection box. The T-shaped trigger rod is slidably connected to the surface of the sealing cover. The T-shaped end of the T-shaped trigger rod extends into the interior of the humidity detection box and contacts the humidity sensing block. The second return spring is fixedly connected between the T-shaped trigger rod and the sealing cover. The rectangular fixing rod is fixedly connected to the top of the T-shaped trigger rod. The second wedge block is symmetrically fixedly connected to both sides of the surface of the rectangular fixing rod. The second wedge block and the first wedge block are in close contact through their respective inclined surfaces, and the second wedge block and the first wedge block can slide relative to each other along the mutually contacting inclined surfaces.

[0014] As a further improvement of this utility model: the bottom surface of the humidity detection box is provided with a water-permeable hole, and the surface of the sealing cover is provided with a vent hole.

[0015] The beneficial effects of this utility model are: 1. This utility model, by setting a humidity detection box next to the drip irrigation head, has an internal humidity sensing block that can monitor the soil moisture around the plant roots in real time. When the soil moisture changes, the humidity sensing block drives a T-shaped trigger rod to link with a second wedge block. Through the cooperation of the inclined surface of the first wedge block, the linkage rod is pushed, which drives the conical flow limiting valve core in the drip irrigation head to slide along the flow limiting hole of the annular flow limiting platform, dynamically changing the drip irrigation flow rate. This breaks the limitations of the traditional fixed drip irrigation mode and realizes on-demand control of "increasing the flow rate when the soil is dry and decreasing the flow rate when the soil is wet". It accurately adapts to the differentiated water demand of different vegetation and different areas in arid and semi-arid sandy areas, and solves the core problem of not being able to dynamically adjust the irrigation strategy according to real-time soil information. It is more intelligent to use. 2. In this invention, the condensation unit on the surface of the temporary storage tube can efficiently recover air water vapor. The condensation funnel rapidly conducts heat through a metal heat-conducting rod and heat sink, utilizing the diurnal temperature difference in sandy areas to condense water vapor in the air into water on the inner wall of the funnel. This water then flows through the temporary storage tube and isolation tube (with a one-way valve on the branch pipe to prevent backflow) into the inner main water supply pipe, supplementing the irrigation water source. This structure breaks through the single function of traditional drip irrigation pipes, which can only deliver water. In sandy areas with extremely scarce water resources, it additionally collects air water vapor resources, improving the water supply capacity of the irrigation system and alleviating the pressure of insufficient irrigation water for sandy vegetation. 3. This utility model sets up a solar power supply module, which converts light energy into electrical energy through solar panels, stores it in a battery through a charge and discharge controller, and powers equipment such as water pumps. This eliminates the dependence on the external power grid, perfectly adapts to the current situation of imperfect power facilities in sandy areas, and ensures that the drip irrigation system can still operate stably in extreme environments. 4. The middle layer of elastic support mesh outside the inner water conveying main pipe in this utility model can resist the compression of sandy soil and avoid pipe deformation affecting water delivery; the outer layer of moisture-absorbing expansion pipe can directly sense the soil surface moisture. When the soil surface is sufficiently moist, the outer layer of moisture-absorbing expansion pipe absorbs water and expands, squeezing the inner water conveying main pipe and reducing the area of ​​the water guide holes on its bottom surface, thus reducing water infiltration; when the soil surface is dry, the outer layer of moisture-absorbing expansion pipe contracts, and the area of ​​the water guide holes recovers, ensuring water delivery efficiency; the detachable filter basket on the conical water tank can filter impurities in the water source and prevent the drip irrigation head from clogging; the drip irrigation head can be quickly disassembled and assembled through the cooperation of the metal insert and the elastic retaining ring, making it easy to replace after damage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram showing the disassembled structure of the conical water tank and filter basket in this utility model; Figure 4 This is a schematic diagram showing the positions of the inner water supply main pipe, drip irrigation head, and humidity detection box in this utility model; Figure 5 This is a schematic cross-sectional view of the connection structure of the inner water conveying main pipe, the middle elastic support net, and the outer moisture-absorbing expansion pipe in this utility model. Figure 1 ; Figure 6 This is a schematic cross-sectional view of the connection structure of the inner water conveying main pipe, the middle elastic support net, and the outer moisture-absorbing expansion pipe in this utility model. Figure 2 ; Figure 7 This is a schematic diagram of the cross-sectional structure connecting the isolation tube, temporary storage tube, and condensation funnel in this utility model; Figure 8 This is a schematic diagram of the connection structure between the humidity detection box and the drip irrigation head in this utility model; Figure 9 This is a schematic cross-sectional view of the drip irrigation head in this utility model. Figure 1 ; Figure 10 This is a schematic cross-sectional view of the drip irrigation head in this utility model. Figure 2 ; Figure 11 This is a cross-sectional structural diagram of the humidity detection box in this utility model; Figure 12 This is a schematic diagram of the connection structure of the T-shaped trigger rod, the rectangular fixing rod, and the second wedge block of this utility model.

[0017] In the diagram: 1. Base plate; 11. Support leg; 12. Conical water tank; 13. Filter basket; 14. Inlet pipe; 15. Motor box; 16. Outlet pipe; 17. Water pump; 18. Solar power module; 2. Multi-port pipe; 21. Inner main water supply pipe; 22. Middle elastic support net; 23. Outer moisture absorption expansion pipe; 24. Connector; 25. Water guide hole; 3. Isolation pipe; 31. Temporary storage pipe; 32. Condensation funnel; 33. Heat sink; 34. Ultra-fine nylon dustproof net; 35. Metal heat-conducting rod; 36. Center 37. Fixed plate; 4. Branch pipe check valve; 5. Metal cannula; 6. Drip head; 7. Annular flow limiting platform; 8. Flow limiting orifice; 9. Conical flow limiting valve core; 10. Limiting collar; 11. Linkage rod; 12. First wedge block; 13. Arc-shaped fixing block; 14. First return spring; 15. Humidity detection box; 16. Water permeable hole; 17. Humidity sensing block; 18. Sealing cover; 19. T-shaped trigger rod; 20. Second return spring; 10. Rectangular fixing rod; 11. Second wedge block. Detailed Implementation

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

[0019] Example 1 like Figures 1 to 12As shown, an adjustable smart moisture-absorbing drip irrigation tape includes a base plate 1. Support legs 11 are fixedly connected in a circular array on one side of the upper surface of the base plate 1. A conical water tank 12 is fixedly connected to the surface of the support legs 11. A motor housing 15 is fixedly connected to the right side of the upper surface of the base plate 1 near the conical water tank 12. A water pump 17 is fixedly installed inside the motor housing 15. A water inlet pipe 14 is fixedly connected to the water inlet end of the water pump 17. The water inlet pipe 14 is fixedly connected to the bottom of the conical water tank 12. A water outlet pipe 16 is fixedly connected to the water outlet end of the water pump 17. A multi-port pipe 2 is fixedly connected to the end of the water outlet pipe 16. An inner water supply main pipe 21 is fixedly connected to the surface of the multi-port pipe 2 at equal intervals. A connector 24 is fixedly connected to the side surface of the inner water supply main pipe 21 at equal intervals and symmetrically. A drip irrigation head 41 is provided on the outside of each connector 24. A humidity detection box 410 is provided on the outside of two adjacent drip irrigation heads 41 on the same side. A trigger unit for changing the flow rate of the drip irrigation head 41 is provided between the humidity detection box 410 and the drip irrigation head 41. An isolation pipe 3 is fixedly connected to the upper surface of the inner water supply main pipe 21 at equal intervals. A temporary storage pipe 31 is fixedly connected to the upper end of the isolation pipe 3. A condensation unit for condensing water vapor in the air into water is provided on the surface of the temporary storage pipe 31.

[0020] In use, the adjustable intelligent moisture-absorbing drip irrigation tape first stores irrigation water in the conical water tank 12. Then, the water pump 17 in the motor box 15 is started, drawing water from the bottom of the conical water tank 12 through the inlet pipe 14 and delivering it to the multi-channel pipe 2 through the outlet pipe 16. The multi-channel pipe 2 evenly distributes the water to each inner water supply main pipe 21. At the same time, the condensation unit on the surface of the temporary storage pipe 31 can condense water vapor in the air into water. The condensate is temporarily stored in the temporary storage pipe 31 and then flows into the inner water supply main pipe 21 through the isolation pipe 3, realizing additional replenishment of irrigation water source. The humidity detection box 410 next to the drip irrigation head 41 monitors the surrounding soil moisture in real time. When the soil moisture changes, the trigger unit acts accordingly, dynamically changing the water flow rate of the drip irrigation head 41 (increasing the flow rate when the soil is dry and decreasing the flow rate when the soil is wet), thereby realizing drip irrigation on demand. The directional water delivery system, consisting of a conical water tank 12, a water pump 17, a multi-port pipe 2, and an inner water delivery main pipe 21, reduces water waste. Combined with a temporary storage pipe 31, an isolation pipe 3, and a condensation unit, it recovers air moisture to replenish the water source, significantly improving the water resource utilization efficiency in arid and semi-arid sandy areas and alleviating water shortage pressure. At the same time, with the linkage of a humidity detection box 410 and a trigger unit, it achieves precise on-demand irrigation based on real-time soil humidity, adapting to the water requirements of different areas and different vegetation in the sandy land, and ensuring the healthy growth of vegetation.

[0021] Furthermore, a filter basket 13 is inserted into the upper surface of the conical water tank 12, and the filter basket 13 and the conical water tank 12 are slidably and detachably connected.

[0022] When in use, it can directly receive irrigation water (such as natural rainfall, artificial water replenishment, etc.) injected into the conical water tank 12. Through its own filter material structure, it intercepts impurities such as mud, weeds, and debris in the water, preventing impurities from entering the inlet pipe 14, outlet pipe 16, multi-port pipe 2 and inner water supply main pipe 21 and other subsequent water supply components with the water flow, thus preventing pipe blockage and poor water output from the drip irrigation head 41. When the filter material is covered with a lot of impurities, it can be directly pulled out from the conical water tank 12 for cleaning or replacement without disassembling the entire water supply system, making it suitable for scenarios with limited on-site maintenance conditions in sandy areas.

[0023] Furthermore, a solar power module 18 is fixedly connected between two adjacent support legs 11. The solar power module 18 consists of a solar panel, a battery, and a charge / discharge controller.

[0024] When in use, the solar panels in its components absorb light energy, which is then converted into electrical energy by the charge and discharge controller and stored in the battery. This continuously provides power to the water pump 17 in the motor housing 15, ensuring stable water pumping and supply. It eliminates dependence on the external power grid, making it suitable for arid and semi-arid sandy areas with scarce power facilities. The drip irrigation system can operate normally without laying power transmission lines, solving the problem of power supply difficulties in sandy areas. At the same time, it achieves the sustainable use of clean energy. Solar energy is a renewable energy source, reducing energy costs in the irrigation process and reducing carbon emissions.

[0025] Furthermore, a middle layer elastic support net 22 is fixedly sleeved on the outer surface of the inner water supply main pipe 21, and an outer layer moisture-absorbing expansion pipe 23 is fixedly sleeved on the outer surface of the middle layer elastic support net 22. Water guide holes 25 are opened near the bottom surface of both the inner water supply main pipe 21 and the outer layer moisture-absorbing expansion pipe 23.

[0026] The middle layer elastic support net 22, which is fixedly sleeved on the inner water conveying main pipe 21, can directly resist external forces such as sandy soil compression and wind and sand impact, and prevent the inner water conveying main pipe 21 from deforming or breaking. The outer layer moisture-absorbing expansion pipe 23 can sense the soil surface humidity in real time. In the initial state, the water guide holes 25 on the bottom surface of the inner water conveying main pipe 21 and the outer layer moisture-absorbing expansion pipe 23 correspond one-to-one. During use, when the soil surface is sufficiently moist, the outer layer moisture-absorbing expansion pipe 23 absorbs water and expands, and the water guide holes 25 on its own surface shrink accordingly, thereby blocking the water guide holes 25 on the surface of the corresponding inner water conveying main pipe 21 and reducing water infiltration. When the soil surface is dry, the outer layer moisture-absorbing expansion pipe 23 loses water and shrinks, and its own water guide holes 25 return to their original state, no longer blocking the water guide holes 25 on the inner water conveying main pipe 21, ensuring normal water delivery. The outer moisture-absorbing expansion tube 23 changes the size of the water guide hole 25 and the degree of obstruction of the inner water guide hole 25 by its own expansion or contraction, making irrigation more in line with the soil moisture distribution characteristics of sandy land; thirdly, it improves water use efficiency. The dynamic opening and closing and obstruction of the water guide hole 25 can avoid water evaporation and waste caused by surface water in the soil, ensuring that water is accurately applied to the root zone of vegetation, which is suitable for the current situation of scarce water resources in sandy land.

[0027] It should be noted that the outer moisture-absorbing expansion tube 23 is made of water-absorbing resin as the core functional material, combined with the substrate. Specifically, the core functional material is a sodium polyacrylate or starch-grafted acrylate water-absorbing resin, which can quickly sense changes in soil surface humidity. The water-absorbing resin is uniformly compounded in the polyurethane elastomer substrate. With the help of the good flexibility, extensibility and structural stability of the substrate, the overall shape of the tube is kept stable when the water-absorbing resin expands or contracts, and it is not easy to break due to deformation. At the same time, it is suitable for the squeezing and friction environment of sandy soil.

[0028] Furthermore, the condensation unit includes a condensation funnel 32, heat sinks 33, an ultra-fine nylon dustproof mesh 34, a metal heat-conducting rod 35, and a central fixing plate 36. The condensation funnel 32 is fixedly connected to the upper surface of the temporary storage tube 31, and the condensation funnel 32 and the temporary storage tube 31 are connected. The heat sinks 33 are fixedly connected to the outer surface of the condensation funnel 32 in a circular array. The central fixing plate 36 is fixedly connected to the inner bottom surface of the condensation funnel 32. The metal heat-conducting rod 35 is fixedly connected to the surface of the central fixing plate 36. The bottom end of the metal heat-conducting rod 35 is provided with a pointed tip. The ultra-fine nylon dustproof mesh 34 is also fixedly connected to the surface of the condensation funnel 32.

[0029] In use, firstly, the pointed end of the metal heat-conducting rod 35 is quickly inserted into the sandy soil. Once fixed, the metal heat-conducting rod 35, through its enhanced heat conduction capability, rapidly dissipates heat from inside the condensation funnel 32, creating a localized low-temperature zone inside the condensation funnel 32 that is lower than the surrounding environment temperature. At this time, water vapor in the air will naturally flow towards the opening of the condensation funnel 32, where the ultra-fine nylon dustproof net 34, fixed at the opening, filters the air, preventing sand, weed debris, and other impurities from entering the condensation funnel 32, ensuring that subsequent components are not contaminated. The filtered water vapor then enters the condensation funnel 32. After passing through the condensation funnel 32, the water will quickly come into contact with the surface of the low-temperature metal heat-conducting rod 35 and the inner wall of the condensation funnel 32, and condense into tiny liquid water droplets upon cooling. At the same time, the heat dissipation fins 33 arranged in a circular array on the outer surface of the condensation funnel 32 increase the contact area with the air, quickly dissipating the heat conducted by the metal heat-conducting rod 35 into the surrounding environment, continuously maintaining the low temperature inside the funnel, and ensuring that water vapor can continuously condense. The condensed water droplets will slowly slide down the inner wall of the condensation funnel 32, and finally flow into the temporary storage tube 31 through the connection between the condensation funnel 32 and the temporary storage tube 31 for storage, replenishing the water source for the drip irrigation system. The condensation effect is enhanced by the combination of the metal heat-conducting rod 35 and the heat sink 33, which can effectively collect water vapor in the air even in the low humidity environment of sandy land, and alleviate the pressure of irrigation water shortage. The ultra-fine nylon dustproof net 34 can effectively block wind and sand impurities, avoid pipe blockage and component contamination, and ensure the stability of the condensation process. The entire condensation process is completed by natural heat exchange only, without the need for additional power, which reduces energy consumption and reduces the risk of failure, and improves the durability and operational stability of the drip irrigation system in sandy land.

[0030] It should be noted that the condensation funnel 32 has a layer of low surface energy material (such as polytetrafluoroethylene coating) sprayed or bonded to the smooth conical inner wall surface. This type of coating can significantly reduce the adhesion between water and the inner wall (i.e., "hydrophobic effect"), so that the condensed small water droplets can quickly aggregate into large water droplets and slide smoothly along the inner wall to the bottom like "rolling on a lotus leaf", avoiding water droplets from sticking to the wall, dispersing or evaporating.

[0031] Furthermore, a branch pipe check valve 37 is fixedly connected inside the isolation pipe 3. The branch pipe check valve 37 is a silicone check valve, which can only allow the condensate in the temporary storage pipe 31 to flow into the inner water supply main pipe 21.

[0032] During use, when the condensate stored in the temporary storage pipe 31 accumulates to a certain amount, a small pressure difference will be formed between the weight of the water and the temporary storage pipe 31. This pressure difference acts on the silicone valve disc of the branch pipe check valve 37. Since the valve opening direction of the branch pipe check valve 37 is preset to face the inner water supply main pipe 21, and the silicone material has good elasticity, the valve disc will naturally open under pressure, allowing the condensate in the temporary storage pipe 31 to flow smoothly through the branch pipe check valve 37 into the inner water supply main pipe 21, continuously replenishing the water source for the drip irrigation system. When the water pressure in the inner water supply main pipe 21 increases and a reverse flow trend occurs, the reverse pressure will push the silicone valve disc of the branch pipe check valve 37 to close tightly. With the high sealing performance of the silicone material, the backflow of water from the inner water supply main pipe 21 to the temporary storage pipe 31 is completely blocked. The one-way flow function ensures that the condensate collected in the temporary storage pipe 31 flows only along the preset path of "temporary storage pipe 31 → inner water supply main pipe 21", avoiding excessive water accumulation in the temporary storage pipe 31 due to backflow, or affecting the normal water supply rhythm of the inner water supply main pipe 21, and maintaining the continuity of water supply for the drip irrigation system.

[0033] Example 2 Improvements based on Example 1: Furthermore, a metal tube 4 is fixedly connected to one end of the drip head 41, and an elastic retaining ring is fixedly connected to the inner wall of the connector 24. The metal tube 4 is connected to the connector 24 through the elastic retaining ring.

[0034] During installation, the metal tube 4 is inserted into the connector 24. The outer wall of the metal tube 4 will squeeze the elastic retaining ring inside the connector 24, causing the elastic retaining ring to deform and open due to its own elasticity. After the metal tube 4 is inserted into the preset position, the elastic retaining ring returns to its original shape, and its inner side will tightly lock into the groove of the tube wall of the metal tube 4, thereby firmly connecting the metal tube 4 and the connector 24. During disassembly, a certain amount of external force needs to be applied to pull the metal tube 4, forcing the elastic retaining ring to deform and open again, so that the metal tube 4 can be removed from the connector 24. Without the need for complicated tools, the connection and separation can be completed solely by the deformation of the elastic retaining ring, which greatly improves the efficiency of replacing and maintaining the drip irrigation head 41.

[0035] Furthermore, the triggering unit includes an annular flow limiting platform 42, a flow limiting orifice 43, a conical flow limiting valve core 44, a limiting collar 45, a linkage rod 46, a first wedge block 47, an arc-shaped fixing block 48, and a first return spring 49. The annular flow limiting platform 42 is fixedly connected inside the drip head 41 near the metal cannula 4. A flow limiting orifice 43 is opened at the center of the annular flow limiting platform 42. The limiting collar 45 is fixedly connected to the side of the drip head 41 away from the metal cannula 4. The linkage rod 46 is slidably connected to the center of the limiting collar 45. The conical flow limiting valve... The core 44 is slidably disposed inside the drip head 41. One end of the linkage rod 46 extends into the inside of the drip head 41. The end of the linkage rod 46 extending into the inside of the drip head 41 is fixedly connected to the conical flow limiting valve core 44. The arc-shaped fixing block 48 is fixedly connected to one side of the inner wall of the drip head 41. The first return spring 49 is fixedly connected between the arc-shaped fixing block 48 and the conical flow limiting valve core 44, and the first return spring 49 is sleeved on the outside of the linkage rod 46. The first wedge block 47 is fixedly connected to the end of the linkage rod 46 away from the conical flow limiting valve core 44.

[0036] Furthermore, the triggering unit also includes a humidity sensing block 412, a sealing cover 413, a T-shaped trigger rod 414, a second return spring 415, a rectangular fixing rod 416, and a second wedge block 417. The humidity sensing block 412 is fixedly connected to the inner bottom of the humidity detection box 410. The sealing cover 413 is threaded onto the surface of the humidity detection box 410. The T-shaped trigger rod 414 is slidably connected to the surface of the sealing cover 413, and the T-shaped end of the T-shaped trigger rod 414 extends into the interior of the humidity detection box 410. The T-shaped end of 414 contacts the humidity sensor block 412. The second reset spring 415 is fixedly connected between the T-shaped trigger rod 414 and the sealing cover 413. The rectangular fixing rod 416 is fixedly connected to the top of the T-shaped trigger rod 414. The second wedge block 417 is symmetrically fixedly connected to both sides of the surface of the rectangular fixing rod 416. The second wedge block 417 and the first wedge block 47 are in close contact through their respective inclined surfaces, and the second wedge block 417 and the first wedge block 47 can slide relative to each other along the inclined surfaces that are in close contact.

[0037] Before use, first install the two drip heads 41 in place according to the preset spacing, then place the humidity detection box 410 between the two drip heads 41 and insert its bottom end into the soil to ensure that the second wedge blocks 417 on both sides of the rectangular fixing rod 416 are precisely fitted with the first wedge blocks 47 of the two drip heads 41 to complete the assembly. In the initial state, the first return spring 49 is in the natural state, so that a certain gap is maintained between the conical flow limiting valve core 44 and the flow limiting hole 43 of the annular flow limiting platform 42. Water can flow from the metal tube 4 into the drip head 41 and flow out through the gap and the flow limiting hole 43 to achieve initial drip irrigation. At this time, the second return spring 415 naturally extends, the T-shaped end of the T-shaped trigger rod 414 presses on the humidity sensing block 412, and the second wedge block 417 fits against the first wedge block 47 without additional compression. During use, when the soil moisture near the vegetation is high, the humidity sensing block 412 absorbs water and expands, pushing the T-shaped trigger rod 414 upward. The second reset spring 415 is compressed, which drives the rectangular fixing rod 416 and the second wedge blocks 417 on both sides to move upward simultaneously. The second wedge block 417 squeezes the first wedge block 47 through the inclined surface, pushing the linkage rod 46 to slide along the limiting collar 45 towards the flow limiting hole 43, thereby driving the conical flow limiting valve core 44 to approach the flow limiting hole 43, reducing the gap between the two, and finally reducing the water flow rate of the drip irrigation head 41. When soil moisture decreases (water decreases), the humidity sensing block 412 loses water and shrinks, weakening the supporting force on the T-shaped trigger rod 414. The second reset spring 415 resets and then pulls the T-shaped trigger rod 414 downward. The rectangular fixing rod 416 and the second wedge block 417 move downward accordingly, and the squeezing force on the first wedge block 47 disappears. The first reset spring 49 releases potential energy and pulls the conical flow limiting valve core 44 away from the flow limiting hole 43, increasing the gap between the two, thereby increasing the water flow rate of the drip irrigation head 41 and replenishing water for the vegetation. The humidity sensor 412 automatically senses soil moisture and adjusts the drip irrigation flow in real time to avoid the soil being too wet or too dry, achieving precise water supply on demand and reducing water waste; a single humidity sensor box 410 can control two drip irrigation heads 41 at the same time, improving control efficiency.

[0038] Furthermore, the bottom surface of the humidity detection box 410 is provided with a water permeable hole 411, and the surface of the sealing cover 413 is provided with a vent hole.

[0039] By setting permeable holes 411, water in the soil can quickly and smoothly enter the humidity detection box 410 and directly contact the humidity sensing block 412 inside the box. This allows the humidity sensing block 412 to simultaneously sense changes in the actual soil moisture, avoiding detection lag or data deviation caused by water not being able to penetrate in time. When the soil moisture decreases, the humidity sensing block 412, which has absorbed water and expanded, can release its own water back into the dry soil through the permeable holes 411, thereby quickly shrinking and ensuring the reverse adjustment of the subsequent drip irrigation flow.

[0040] Working principle: When in use, first place the base plate 1 flat on the area to be irrigated, then insert the filter basket 13 into the conical water tank 12, then insert one end of each drip head 41 into the connector 24 through the metal tube 4. Utilize the deformation and reset of the elastic retaining ring on the inner wall of the connector 24 to make the metal tube 4 and the connector 24 firmly connected. Place the humidity detection box 410 between two adjacent drip heads 41 on the same side, and make the second wedge block 417 and the first wedge block 47 of the two drip heads 41 fit and contact each other through the inclined surface. Then insert the tip of the metal heat-conducting rod 35 into the sand to complete the assembly. The solar power module 18 uses solar panels to absorb light energy, which is then converted into electrical energy by a charge and discharge controller and stored in a battery to continuously provide power to the water pump 17 in the motor box 15, ensuring the stable operation of the water pump 17 without relying on an external power grid. Then, irrigation water (natural rainfall or artificial water replenishment) is injected into the conical water tank 12. The water flow first passes through the filter basket 13 to filter out impurities such as mud and weeds before entering the water tank. Then, the water pump 17 is started to draw water from the bottom of the conical water tank 12 through the inlet pipe 14 and deliver it to the multi-way pipe 2 through the outlet pipe 16. The multi-way pipe 2 evenly distributes the water to each inner water supply main pipe 21 to provide the main water source for drip irrigation. The metal heat-conducting rod 35 quickly conducts heat out of the condensation funnel 32, creating a local low-temperature zone inside the funnel. Water vapor in the air flows to the low-temperature zone, is filtered by the ultra-fine nylon dustproof net 34 (blocking sand and dust impurities), and then enters the condensation funnel 32, where it condenses into water droplets upon contact with the low-temperature surface of the metal heat-conducting rod 35 and the inner wall of the funnel. During this process, the heat sink 33 increases the contact area with air, which enables it to quickly dissipate the heat conducted by the metal heat-conducting rod 35, maintain the low temperature environment inside the funnel, and ensure continuous condensation. The condensed water droplets slide down the inner wall of the funnel and flow into the temporary storage tube 31 for storage. When the condensate in the temporary storage tube 31 accumulates to a certain amount, gravity and pressure difference push the silicone valve of the branch pipe check valve 37 to open, and the condensate flows into the inner water supply main 21 through the isolation tube 3 and the branch pipe check valve 37 to replenish the irrigation water source. If the pressure in the inner water supply main 21 is higher than that in the temporary storage tube 31, the valve of the branch pipe check valve 37 closes to prevent water backflow. The middle layer elastic support net 22 outside the inner water conveying main pipe 21 resists the compression of sandy soil and the impact of wind and sand, and avoids the deformation and damage of the pipe. The outer layer moisture-absorbing expansion pipe 23 can sense the soil surface humidity in real time. When the soil is wet, the outer layer moisture-absorbing expansion pipe 23 absorbs water and expands, and its own water guide hole 25 shrinks, blocking the water guide hole 25 of the inner water conveying main pipe 21 and reducing water infiltration. When the soil is dry, the outer layer moisture-absorbing expansion pipe 23 loses water and shrinks, and the water guide hole 25 returns to its original shape, no longer blocking the inner water guide hole 25, ensuring normal water delivery. During drip irrigation, in the initial state, the first return spring 49 is in its natural state, which keeps a certain gap between the conical flow limiting valve core 44 and the flow limiting hole 43 of the annular flow limiting platform 42; the water in the inner water supply main pipe 21 flows into the drip irrigation head 41 through the connector 24 and the metal insert 4, and flows out through the gap between the conical flow limiting valve core 44 and the flow limiting hole 43 and the flow limiting hole 43 to achieve initial drip irrigation; at this time, the second return spring 415 extends naturally, the T-shaped end of the T-shaped trigger rod 414 presses on the humidity sensing block 412, and the second wedge block 417 fits against the first wedge block 47 without additional compression; When the soil is moist, the water in the soil enters the box through the water-permeable hole 411 on the bottom surface of the humidity detection box 410 and is absorbed by the humidity sensing block 412, causing the humidity sensing block 412 to absorb water and expand. The expanded humidity sensing block 412 pushes the T-shaped trigger rod 414 upward, compresses the second reset spring 415, and drives the rectangular fixing rod 416 and the second wedge blocks 417 on both sides to move upward simultaneously. The second wedge block 417 squeezes the first wedge block 47 through the inclined surface, pushing the linkage rod 46 to slide along the limiting collar 45 towards the flow limiting hole 43, thereby driving the conical flow limiting valve core 44 to approach the flow limiting hole 43, reducing the gap between the two and reducing the water flow rate of the drip irrigation head 41. When the soil is dry, the soil moisture decreases, and the humidity sensing block 412 releases moisture into the soil through the water-permeable hole 411 and contracts, weakening the supporting force on the T-shaped trigger rod 414. The second reset spring 415 resets, pulling the T-shaped trigger rod 414 downward, causing the rectangular fixing rod 416 and the second wedge block 417 to move downward, thereby eliminating the squeezing force of the second wedge block 417 on the first wedge block 47. The first reset spring 49 releases potential energy, pulling the conical flow-limiting valve core 44 away from the flow-limiting hole 43, increasing the gap between the two, increasing the water flow rate of the drip irrigation head 41, and replenishing the vegetation with water. The vent of the sealing cover 413 balances the air pressure inside and outside the detection box, ensuring that the T-shaped trigger rod 414 slides smoothly. The main water source is filtered through the filter basket 13 before being transported to avoid pipe blockage. The condensation unit, through the cooperation of the metal heat-conducting rod 35 and the heat sink 33, can still effectively collect water vapor in the air in the low humidity environment of the sandy land. The branch pipe check valve 37 ensures that the condensate flows into the main water supply pipe in one direction, realizing the dual water source supply of "main water source + condensate water replenishment", which greatly improves the water resource utilization efficiency of arid and semi-arid sandy land and alleviates the water shortage pressure. The middle layer elastic support net 22 provides the inner water conveying main pipe 21 with protection against compression and wind and sand, extending the service life of the pipe; the outer layer moisture-absorbing expansion pipe 23 dynamically adjusts the opening and closing degree of the water guide hole 25 through its own deformation, conforms to the changes in humidity on the surface of sandy soil, reduces water evaporation and waste, and ensures that water is accurately applied to the root area of ​​vegetation. A single humidity detection box 410 controls two drip irrigation heads 41 simultaneously through a trigger unit, improving control efficiency; the humidity sensing block 412, with the cooperation of the water permeable hole 411 and the air permeable hole, accurately and timely senses changes in soil moisture, and drives the conical flow limiting valve core 44 to smoothly adjust the flow rate through wedge block linkage and spring reset, avoiding excessively wet or dry soil, adapting to the water requirements of different areas and different vegetation in sandy land, and ensuring healthy vegetation growth.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable intelligent moisture-absorbing drip irrigation tape, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a support leg (11) in a circular array on one side. A conical water tank (12) is fixedly connected to the surface of the support leg (11). A motor box (15) is fixedly connected to the right side of the upper surface of the base plate (1) near the conical water tank (12). A water pump (17) is fixedly installed inside the motor box (15). A water inlet pipe (14) is fixedly connected to the water inlet end of the water pump (17). The water inlet pipe (14) is fixedly connected to the bottom of the conical water tank (12). A water outlet pipe (16) is fixedly connected to the water outlet end of the water pump (17). A multi-port pipe (2) is fixedly connected to the end of the water outlet pipe (16). The surface of the multi-channel pipe (2) is fixedly connected with an inner water supply main pipe (21) at equal intervals. The side surface of the inner water supply main pipe (21) is symmetrically fixedly connected with connectors (24) at equal intervals. Each connector (24) is provided with a drip irrigation head (41) on its outer side. A humidity detection box (410) is provided on the outer side of two adjacent drip irrigation heads (41) on the same side. A trigger unit for changing the flow rate of the drip irrigation head (41) is provided between the humidity detection box (410) and the drip irrigation head (41). An isolation pipe (3) is fixedly connected with an equal interval on the upper surface of the inner water supply main pipe (21). A temporary storage pipe (31) is fixedly connected to the upper end of the isolation pipe (3). A condensation unit for condensing air water vapor into water is provided on the surface of the temporary storage pipe (31).

2. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 1, characterized in that: A filter basket (13) is inserted into the upper surface of the conical water tank (12), and the filter basket (13) and the conical water tank (12) are slidably and detachably connected.

3. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 1, characterized in that: A solar power module (18) is fixedly connected between two adjacent support legs (11). The solar power module (18) consists of a solar panel, a battery and a charge / discharge controller.

4. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 1, characterized in that: The outer surface of the inner water supply main pipe (21) is fixedly fitted with a middle elastic support net (22), and the outer surface of the middle elastic support net (22) is fixedly fitted with an outer moisture-absorbing expansion pipe (23). Water guide holes (25) are opened near the bottom surface of both the inner water supply main pipe (21) and the outer moisture-absorbing expansion pipe (23).

5. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 4, characterized in that: The condensation unit includes a condensation funnel (32), heat sinks (33), an ultra-fine nylon dustproof net (34), a metal heat-conducting rod (35), and a central fixing plate (36). The condensation funnel (32) is fixedly connected to the upper surface of the temporary storage tube (31), and the condensation funnel (32) and the temporary storage tube (31) are connected. The heat sinks (33) are fixedly connected to the outer surface of the condensation funnel (32) in a circular array. The central fixing plate (36) is fixedly connected to the inner bottom surface of the condensation funnel (32). The metal heat-conducting rod (35) is fixedly connected to the surface of the central fixing plate (36). The bottom end of the metal heat-conducting rod (35) is provided with a pointed tip. The ultra-fine nylon dustproof net (34) is also fixedly connected to the surface of the condensation funnel (32).

6. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 1, characterized in that: The isolation pipe (3) is fixedly connected to a branch pipe check valve (37), which is a silicone check valve. The branch pipe check valve (37) can only allow the condensate in the temporary storage pipe (31) to flow into the inner water supply main pipe (21).

7. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 1, characterized in that: One end of the drip head (41) is fixedly connected to a metal tube (4), and an elastic retaining ring is fixedly connected to the inner wall of the connector (24). The metal tube (4) is connected to the connector (24) through the elastic retaining ring.

8. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 7, characterized in that: The triggering unit includes an annular flow limiting platform (42), a flow limiting orifice (43), a conical flow limiting valve core (44), a limiting collar (45), a linkage rod (46), a first wedge block (47), an arc-shaped fixing block (48), and a first reset spring (49). The annular flow limiting platform (42) is fixedly connected to the inside of the drip head (41) near the metal cannula (4). A flow limiting orifice (43) is opened at the center of the annular flow limiting platform (42). The limiting collar (45) is fixedly connected to the side of the drip head (41) away from the metal cannula (4). The linkage rod (46) is slidably connected to the center of the limiting collar (45). The conical flow limiting valve core... (44) Slidingly disposed inside the drip head (41), one end of the linkage rod (46) extends into the inside of the drip head (41), the end of the linkage rod (46) extending into the inside of the drip head (41) is fixedly connected to the conical flow limiting valve core (44), the arc-shaped fixing block (48) is fixedly connected to one side of the inner wall of the drip head (41), the first return spring (49) is fixedly connected between the arc-shaped fixing block (48) and the conical flow limiting valve core (44), and the first return spring (49) is sleeved on the outside of the linkage rod (46), and the first wedge block (47) is fixedly connected to the end of the linkage rod (46) away from the conical flow limiting valve core (44).

9. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 8, characterized in that: The triggering unit further includes a humidity sensing block (412), a sealing cover (413), a T-shaped trigger rod (414), a second reset spring (415), a rectangular fixing rod (416), and a second wedge block (417). The humidity sensing block (412) is fixedly connected to the inner bottom of the humidity detection box (410), and the humidity sensing block (412) is made of polyvinyl alcohol-sodium alginate composite gel. The sealing cover (413) is threaded onto the surface of the humidity detection box (410), and the T-shaped trigger rod (414) is slidably connected to the surface of the sealing cover (413). The T-shaped end of the T-shaped trigger rod (414) extends to the humidity detection box (415). Inside 410), the T-shaped end of the T-shaped trigger rod (414) is in contact with the humidity sensing block (412), the second reset spring (415) is fixedly connected between the T-shaped trigger rod (414) and the sealing cover (413), the rectangular fixing rod (416) is fixedly connected to the top of the T-shaped trigger rod (414), the second wedge block (417) is symmetrically fixedly connected to both sides of the surface of the rectangular fixing rod (416), the second wedge block (417) and the first wedge block (47) are in close contact through their respective inclined surfaces, and the second wedge block (417) and the first wedge block (47) can slide relative to each other along the mutually contacting inclined surfaces.

10. The adjustable intelligent moisture-absorbing drip irrigation tape according to claim 9, characterized in that: The bottom surface of the humidity detection box (410) is provided with a water-permeable hole (411), and the surface of the sealing cover (413) is provided with a vent hole.

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