Agricultural drip irrigation device capable of preventing soil erosion and water evaporation

Abstract

The application discloses an agricultural drip irrigation device capable of preventing water and soil loss and water evaporation, and particularly relates to the technical field of agricultural drip irrigation, and comprises a drip irrigation box, the bottom of the drip irrigation box is provided with a flow guide drip irrigation assembly, the flow guide drip irrigation assembly comprises an inner lining cover arranged at the bottom of the drip irrigation box, and the top of the inner lining cover is provided with a plurality of gathering hoppers. The application adopts a deep water guide and surface insulation double evaporation control design: the capillary water climbing cotton directly guides water to the deep layer of soil by capillary action, thereby avoiding evaporation loss caused by surface soil wetting; the butt joint cover insulates the direct contact between soil and air, reduces soil surface water evaporation, indirectly reduces irrigation frequency, and reduces planting water cost.

Description

Technical Field

[0001] This invention relates to the field of agricultural drip irrigation technology, and more specifically, to an agricultural drip irrigation device that can prevent soil erosion and water evaporation. Background Technology

[0002] Agricultural drip irrigation systems are precision irrigation technologies that deliver water and dissolved fertilizer (integrated water and fertilizer management) slowly and evenly to the soil near crop roots via a pipeline system, achieving localized moist irrigation. Their core components typically include a water source, filter, pump, water pipes, and drippers (or drip tape). They avoid the water waste associated with traditional flood irrigation and are suitable for various planting scenarios such as open fields, greenhouses, and orchards.

[0003] Soil is the foundation of agricultural production. Soil erosion removes topsoil (containing a large amount of organic matter and minerals), leading to a sharp decline in soil fertility. In the long run, this will cause farmland degradation and reduced productivity. The lost soil will also disrupt the stable growth environment of crop roots, and may block irrigation channels and bury crops, directly affecting crop survival and yield. Excessive evaporation will cause the soil surface to dry out quickly, disrupting the water balance near the roots and requiring frequent watering. Preventing evaporation can maintain stable soil moisture, reduce the number of irrigations, and lower planting costs. Therefore, an agricultural drip irrigation device that can prevent soil erosion and water evaporation is provided. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an agricultural drip irrigation device that can prevent soil erosion and water evaporation, aiming to solve the problems mentioned in the background art.

[0005] The present invention provides the following technical solution: an agricultural drip irrigation device that can prevent soil erosion and water evaporation, including a drip irrigation box, wherein a flow guiding drip irrigation component is provided at the bottom of the drip irrigation box;

[0006] The drip irrigation assembly includes an inner liner at the bottom of the drip irrigation box. Several gathering buckets are distributed on the top of the inner liner, and each gathering bucket has a spring at its top. Several water-absorbing cores are located at the bottom of each spring, and each water-absorbing core has a penetrating section extending into the inner liner. A support ring is provided between the inner liner and the drip irrigation box. A gasket is located in the middle of the support ring, and several first gears are located on the outer side of the gasket. Each first gear has an inlet pipe extending into the drip irrigation box at its top. Each gathering bucket is located below its corresponding first gear. An elastic seal installed on the bottom of the inner wall of the drip irrigation box is rotatably connected to the outer side of the inlet pipe.

[0007] Optionally, in one possible implementation, the vertical cross-sectional shape of the gathering hopper is set to a frustum shape, the top of the spring is provided with a diverting cone block, the diverting cone block is installed in the gathering hopper by bolts, exhaust diverting plates are respectively inserted on both sides of the diverting cone block, and a guide cavity is formed between the diverting cone block and the gathering hopper, multiple gathering hoppers are distributed circumferentially along the axis of the inner liner, and the bottom end of the inner liner is threadedly connected to a gathering tube;

[0008] Optionally, in one possible implementation, the outer side of the pad is provided with a plurality of sliding grooves, and each of the sliding grooves is slidably connected to a sliding rod. One end of each of the sliding rods is provided with a washer ring, and the washer rings are respectively located at the bottom of the corresponding first gear. A vertical tube is inserted into the washer ring. The first gear is sleeved on the outside of the vertical tube and rotatably connected to the vertical tube. The water inlet pipe is connected to the vertical tube and rotatably connected to the drip irrigation box. The outer side of the water inlet pipe is provided with a plurality of guide ports.

[0009] Optionally, in one possible implementation, a motor is provided at the bottom of the pad, a second gear is provided at the top of the pad, and a plurality of electric push rods are provided on the outside of the motor for driving the displacement of the corresponding slide rods. The output end of the motor extends to the bottom of the second gear, and a first gear is located on the outside of the second gear and meshes with the second gear. A docking cover is provided on the outside of the inner liner, and the support ring is installed in the middle of the docking cover by bolts, and the top of the docking cover extends to the bottom of the drip irrigation box.

[0010] The technical effects and advantages of this invention are as follows:

[0011] 1. This invention provides dual protection through a gathering tube and a connecting cover: the gathering tube can be inserted into the deep soil layer to concentrate the water carried out by the capillary water-creeping cotton and guide it to the crop root area, avoiding the surface soil erosion caused by water diffusion; the connecting cover covers the soil surface, isolates it from the impact of external rainwater, and at the same time prevents the loss of soil from clogging the irrigation path, effectively retaining the organic matter and minerals in the soil surface and maintaining the productivity of arable land.

[0012] 2. This invention adopts a dual evaporation control design of deep water conduction and surface isolation: the capillary water-conducting cotton uses capillary action to directly guide water to the deep soil layer, avoiding evaporation loss caused by surface soil moisture; the dome cover isolates the soil from direct contact with air, reducing surface soil water evaporation, indirectly reducing irrigation frequency, and lowering planting water costs.

[0013] 3. This invention ensures uniform irrigation through transmission adjustment and diversion of water: the motor drives the second gear to rotate, which in turn drives the meshing first gear and the water inlet pipe to rotate. The guide port on the outside of the water inlet pipe can evenly draw liquid from the drip irrigation box; the diversion cone and the exhaust diversion plate divert the liquid to both sides of the gathering bucket to avoid air bubbles forming air resistance. Combined with the slow release of water by the water absorption core, it ensures that the roots of each crop receive an equal amount of water, solving the problem of local drought and water accumulation.

[0014] 4. The electric push rod of this invention can drive the slide rod to slide along the groove of the pad, thereby driving the pad ring, the vertical pipe and the water inlet pipe to move radially, realizing the adjustment of the position of the water inlet pipe, adapting to crops with different plant spacing, and also facilitating the rotation of the water inlet pipe to extract the medium; at the same time, the gathering pipe and the inner liner are connected by threads, which can be flexibly disassembled. After disassembly, the capillary water-creeping cotton can be wrapped around the outside of the vegetation, realizing a ring-type drip irrigation through capillary water creep, which is suitable for fruit trees, shrubs and other non-upright root crops;

[0015] 5. The elastic force of the spring in this invention can keep the water-absorbing core in the center of the gathering hopper at all times. When the water flow impacts, the water-absorbing core can shake slightly to help expel air bubbles in the water flow. The diversion cone and the exhaust diversion plate further expel air bubbles in the liquid, avoiding water flow interruption caused by air resistance. The water-absorbing core is made of high-molecular water-absorbing resin material, which is not easy to adsorb impurities. Combined with the rotation extraction of the water inlet pipe, the risk of impurity blockage can be reduced.

[0016] In summary, through the coordinated use of various structures, a dual evaporation control design of deep water conduction and surface isolation is adopted: the capillary water-creeping cotton utilizes capillary action to directly guide water to the deep soil layers, avoiding evaporation losses caused by surface soil moisture; the connecting cover isolates the soil from direct contact with air, reducing surface water evaporation, indirectly reducing irrigation frequency, lowering planting water costs, and allowing for adjustment of the inlet pipe position to suit crops with different plant spacings, as well as convenient rotation of the inlet pipe to extract the medium; at the same time, the gathering tube and the inner liner are threadedly connected and can be flexibly disassembled. After disassembly, the capillary water-creeping cotton can be wrapped around the outside of the vegetation to achieve surrounding drip irrigation through capillary water creep, suitable for fruit trees, shrubs, and other non-upright root crops. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0018] Figure 1 This is a front view of the overall structure of the present invention.

[0019] Figure 2 This is a side view of the overall structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the docking cover, gathering hopper, diverting cone block, exhaust diverting plate and gathering pipe of the present invention.

[0021] Figure 4 This is a schematic diagram of the support ring, second gear, washer, first gear, and water inlet pipe of the present invention.

[0022] Figure 5 This is a schematic diagram of the motor, pad, slide bar, washer ring, and first gear of the present invention.

[0023] Figure 6 For the present invention Figure 5 Exploded view.

[0024] Figure 7 This is a schematic diagram of the water-absorbing core, diversion cone, inner liner, and gathering hopper of the present invention.

[0025] Figure 8 This is a schematic diagram of the capillary water-repellent cotton, water-absorbing core, spring, diverting cone block, and exhaust diverting plate of the present invention.

[0026] Figure 9 This is a schematic diagram of the water inlet pipe of the present invention installed inside the drip irrigation box.

[0027] The attached diagram is labeled as follows: 1. Drip irrigation box; 2. Inner liner; 3. Gathering hopper; 4. Spring; 5. Diverting cone; 6. Exhaust and diversion plate; 7. Water-absorbing core; 8. Capillary water-creeping cotton; 9. Gathering tube; 10. Support ring; 11. Pad; 12. Slide groove; 13. Slide rod; 14. Washer ring; 15. Vertical pipe; 16. First gear; 17. Inlet pipe; 18. Guide port; 19. Motor; 20. Electric push rod; 21. Second gear; 22. Connecting cover; 23. Elastic seal. Detailed Implementation

[0028] 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.

[0029] This embodiment aims to specifically illustrate the structural assembly, electrical component configuration, and actual operation process of an agricultural drip irrigation device that can prevent soil erosion and water evaporation, ensuring that the device can stably achieve the technical effects of precise drip irrigation, reducing water evaporation, and preventing soil erosion, and is suitable for greenhouse tomato planting scenarios.

[0030] The agricultural drip irrigation device in this embodiment includes a drip irrigation box 1 and a flow guiding drip irrigation component disposed at its bottom, the specific structure of which is as follows:

[0031] Drip irrigation tank 1: The top is equipped with an openable and closable sealing cover (not shown) for replenishing water and water-fertilizer mixture; the bottom inner wall has an annular groove for sealing and engaging with the docking cover 22 of the drip irrigation assembly. As a water source and water-fertilizer storage container, it can hold liquid, and the inner wall can be smoothly equipped with graduation lines for easy observation of the remaining liquid volume.

[0032] The diversion drip irrigation assembly is the core functional component of the device, including an inner liner 2, a collection hopper 3, a spring 4, a diversion cone 5, an exhaust and diversion plate 6, a water-absorbing core 7, capillary water-creeping cotton 8, and a collection tube 9, as detailed below:

[0033] Inner Liner 2: As attached Figure 7 As shown, the top outer wall is fixed to the annular groove at the bottom of the drip irrigation box 1, and the bottom inner wall is provided with internal threads for connection with the gathering tube 9; the top surface of the inner liner 2 is evenly provided with several circular mounting holes for fixing the gathering bucket 3.

[0034] Gathering Bucket 3: As attached Figure 7 , 8 As shown, the vertical cross section is truncated cone-shaped, and the bottom end is fixed to the mounting hole of the inner liner 2 by bolts. The gathering buckets 3 are evenly distributed around the axis of the inner liner 2. The inner cavity of the gathering buckets 3 is hollow, which is used to receive water and guide the water-absorbing core 7. The truncated cone-shaped structure can reduce the splashing of water during the flow process and reduce the evaporation area.

[0035] Flow divider cone 5 and exhaust manifold 6: as shown in the attached diagram. Figure 8 As shown, the diversion cone 5 is conical and is fixed to the top center of the inner cavity of the gathering hopper 3 by bolts; slots are symmetrically opened on both sides of the diversion cone 5 for inserting the exhaust diversion plate 6; its function is to divert the water entering the gathering hopper 3 to both sides, and at the same time discharge the air bubbles in the water flow to avoid air resistance affecting water conduction.

[0036] Spring 4 and absorbent core 7: as attached Figure 8 As shown, the top of the spring is welded and fixed to the center of the bottom of the diversion cone block 5, and the bottom end is bonded and fixed to the top of the water-absorbing core 7; the elasticity of the spring 4 can keep the water-absorbing core 7 in the middle of the gathering bucket 3, and it can also shake under the water flow, which is easy to vent and ensures that the water is fully in contact; the water-absorbing core 7 is made of super absorbent polymer resin, which can quickly absorb the water in the gathering bucket 3 and slowly release it to the capillary water-repellent cotton 8.

[0037] Capillary water-repellent cotton 8 and cohesive tube 9: as attached Figure 3 , 7As shown, the capillary water-creeping cotton 8 is made of polyester fiber. Its top end is fixed to the bottom end of the water-absorbing core 7, and its bottom end penetrates the bottom of the inner liner 2 and extends into the gathering tube 9. The capillary water-creeping cotton 8 uses capillary action to slowly guide water to the deep soil layer, reducing surface evaporation. The top end of the gathering tube 9 is threaded and connected to the threaded bottom end of the inner liner 2. The bottom end can be cut at an angle and inserted into the soil. Its function is to concentrate the water delivered by the capillary water-creeping cotton 8 and guide it to the crop root area to avoid water loss caused by water diffusion. Alternatively, the gathering tube 9 can be disassembled and the capillary water-creeping cotton 8 can be wrapped around the outside of the vegetation for drip irrigation through capillary water creep.

[0038] Docking cover 22: As attached Figure 3 , 4 As shown, the top extends to the bottom of the drip irrigation box 1 and is sealed to the outer wall of the drip irrigation box 1 by a sealing ring, and the bottom can cover the soil surface; the function of the connecting cover 22 is to isolate the soil surface from direct contact with the air, reduce water evaporation, and prevent external rainwater from washing away the soil and causing soil erosion.

[0039] Transmission adjustment components:

[0040] The transmission adjustment assembly includes a support ring 10, a pad 11, a slide rod 13, a washer ring 14, a vertical pipe 15, a first gear 16, a water inlet pipe 17, a motor 19, an electric push rod 20, and a second gear 21. It is used to achieve uniform water extraction and adjust the drip irrigation range, as detailed below:

[0041] Support ring 10 and pad 11: as attached Figure 4 , 5 As shown, the support ring 10 is a stainless steel ring, which is bolted to the annular boss in the middle of the docking cover 22; the pad 11 is a stainless steel disc, which is fixed to the center of the inner ring of the support ring 10, and several sliding grooves 12 are evenly opened on its outer side for installing the sliding rod 13.

[0042] Slide rod 13 and washer 14: as attached Figure 5 , 6 As shown, the slide rod 13 is chrome-plated and slidably connected in the slide groove 12; one end of the slide rod 13 is welded with a washer 14, and the washer 14 has a through hole for inserting the vertical pipe 15; the function of the slide rod 13 is to drive the washer 14 and the vertical pipe 15 to slide along the slide groove 12 to adjust the position of the water inlet pipe 17.

[0043] Vertical pipe 15, inlet pipe 17 and elastic seal 23: as attached Figure 4 , 6As shown in Figure 9, the bottom end of the vertical pipe 15 is inserted into and glued to the through hole of the gasket 14, and the top end is connected to the water inlet pipe 17. One end of the water inlet pipe 17 extends into the drip irrigation box 1, and the other end is connected to the vertical pipe 15. An elastic seal 23 is rotatably connected to the outside of the water inlet pipe 17. The elastic seal 23 is fixed in the through hole at the bottom of the drip irrigation box 1. The water inlet pipe 17 and the elastic seal 23 at the bottom of the inner wall of the drip irrigation box 1 are rotatably connected by a mechanical seal. This ensures that the bottom of the drip irrigation box 1 remains sealed when the water inlet pipe 17 moves horizontally. Several guide ports 18 are evenly opened on the outside of the part of the water inlet pipe 17 located inside the drip irrigation box 1 for rotating and drawing liquid from the drip irrigation box 1. A first gear 16 is also sleeved on the outside of the water inlet pipe 17. The first gear 16 is fixedly connected to the water inlet pipe 17 by a flat key and rotates synchronously with the water inlet pipe 17.

[0044] Motor 19 and second gear 21: as attached Figure 5 , 6 As shown, the motor 19 can be a stepper motor of model 57HS22, which is fixed to the center of the bottom of the pad 11 by the motor bracket bolts; the output shaft of the motor 19 passes through the pad 11 and extends to the top of the pad 11, and is fixedly connected to the second gear 21 by a flat key; the second gear 21 is located inside each of the first gears 16 and meshes with all the first gears 16; the function of the motor 19 is to drive the second gear 21 to rotate, thereby driving each of the first gears 16 to rotate synchronously, so that the water inlet pipe 17 rotates around the axis of the vertical pipe 15, ensuring that the guide port 18 draws liquid evenly from the drip irrigation box 1 and avoids local liquid residue.

[0045] Electric linear actuator 20: as attached Figure 5 , 6 As shown, the electric actuator 20 can be a DC electric actuator of model DTZ300, which is fixed to the outside of the motor bracket at the bottom of the pad 11 by bolts. The output shaft of the electric actuator 20 is fixedly connected to the end of the slide rod 13 away from the washer ring 14 by a coupling. The function of the electric actuator 20 is to drive the slide rod 13 to slide back and forth along the slide groove 12, adjust the radial position of the first gear 16 and the water inlet pipe 17, and also facilitate the adjustment of the corresponding position of the first gear 16 so that it meshes with the second gear 21 so that the second gear 21 can be driven to rotate.

[0046] The specific working principle is as follows: First, open the top sealing cover of the drip irrigation box 1 and inject water or water-fertilizer mixture into the box; according to the crop spacing, start the electric push rod 20 at the bottom of the pad 11. The electric push rod 20 drives the slide rod 13 to slide along the slide groove 12, which drives the pad ring 14, the vertical pipe 15 and the first gear 16 to move radially until the position of the water inlet pipe 17 is adapted to the crop irrigation range. For example, by adjusting the position of the water inlet pipe 17, the water inlet pipe 17 can be located at the top of the gathering hopper 3, so that the medium in the drip irrigation box 1 can be transported into the gathering hopper 3. At the same time, it ensures that the first gear 16 and the second gear 21 are engaged, and it is also easy to extract the medium in the drip irrigation box 1. Furthermore, the elastic sealing element 23 is set to ensure that the water inlet pipe 17 can move while keeping it in a sealed state with the drip irrigation box 1.

[0047] The motor 19 at the bottom of the start pad 11 is activated. The output of the motor 19 drives the second gear 21 at the top to rotate. The second gear 21 drives multiple first gears 16 meshing on the outside to rotate synchronously. The first gears 16 drive the sleeved vertical pipe 15 and the connected water inlet pipe 17 to rotate. When the water inlet pipe 17 rotates in the drip irrigation box 1, the guide port 18 on its outside draws liquid evenly from the box. The liquid flows into the vertical pipe 15 through the water inlet pipe 17 and is finally guided into the collection hopper 3 below.

[0048] The liquid entering the gathering hopper 3 first contacts the top diversion cone 5, which guides the liquid to both sides. At the same time, air bubbles in the liquid are discharged through the exhaust diversion plate 6. The diverted liquid flows to the water-absorbing core 7 in the middle of the gathering hopper 3. The water-absorbing core 7 quickly absorbs and stores the liquid. Under its own water release characteristics, the liquid is slowly conducted to the capillary water-repellent cotton 8 at the bottom. The capillary water-repellent cotton 8 uses capillary action to guide the liquid through the bottom of the inner liner 2 and into the gathering tube 9.

[0049] The gathering tube 9 directs the liquid discharged by the capillary water-creeping cotton 8 to the deep soil root zone of the crop, avoiding soil erosion caused by water diffusion. At the same time, the connecting cover 22 on the outside of the inner liner 2 can cover the soil surface, which on the one hand isolates the air and reduces water evaporation, and on the other hand blocks external rainwater from impacting the soil and prevents soil erosion. If the planting scenario is fruit trees or other non-upright root crops, the gathering tube 9 can be removed and the capillary water-creeping cotton 8 can be wrapped around the outside of the plant stem to achieve a surrounding drip irrigation through capillary water creep, which can be adapted to the growth needs of different crops.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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. An agricultural drip irrigation device for preventing soil erosion and water evaporation, comprising a drip irrigation box (1), characterized in that: The bottom of the drip irrigation box (1) is provided with a flow guiding drip irrigation component; The drip irrigation assembly includes an inner liner (2) at the bottom of the drip irrigation box (1). The top of the inner liner (2) is provided with several gathering buckets (3), and the top of the inner cavity of each gathering bucket (3) is provided with a spring (4). The bottom of the spring (4) is provided with several water-absorbing cores (7), and the bottom of each water-absorbing core (7) is provided with capillary water-repellent cotton (8) that penetrates the inner liner (2) and extends to the bottom of the inner liner (2). A support ring (10) is provided between the inner liner (2) and the drip irrigation box (1). A pad (11) is provided in the middle of the support ring (10). A plurality of first gears (16) are provided on the outer side of the pad (11). Each first gear (16) is provided with a water inlet pipe (17) extending into the drip irrigation box (1) at its top. Each gathering bucket (3) is located below the corresponding first gear (16). An elastic sealing element (23) installed on the bottom of the inner wall of the drip irrigation box (1) is rotatably connected to the outer side of the water inlet pipe (17). The vertical cross-section of the gathering bucket (3) is set to a frustum shape, and the top of the spring (4) is provided with a diversion cone (5), which is installed in the gathering bucket (3) by bolts; The two sides of the diversion cone (5) are respectively connected to exhaust diversion plates (6), and a guide cavity is formed between the diversion cone (5) and the gathering bucket (3); Multiple gathering buckets (3) are distributed around the circumference of the axial center point of the inner liner (2), and the bottom end of the inner liner (2) is threaded with a gathering tube (9). The outer side of the pad (11) is provided with a plurality of sliding grooves (12), and each of the sliding grooves (12) is slidably connected with a sliding rod (13), and one end of each of the sliding rods (13) is provided with a washer (14).

2. The agricultural drip irrigation device for preventing soil erosion and water evaporation according to claim 1, characterized in that: Multiple washer rings (14) are located at the bottom of the corresponding first gear (16). A vertical tube (15) is inserted into the washer ring (14). The first gear (16) is sleeved on the outside of the vertical tube (15) and rotatably connected to the vertical tube (15).

3. An agricultural drip irrigation device for preventing soil erosion and water evaporation according to claim 2, characterized in that: The water inlet pipe (17) and the vertical pipe (15) are connected. The water inlet pipe (17) is rotatably connected to the drip irrigation box (1). Several guide ports (18) are opened on the outside of the water inlet pipe (17).

4. An agricultural drip irrigation device for preventing soil erosion and water evaporation according to claim 1, characterized in that: A motor (19) is provided at the bottom of the pad (11), a second gear (21) is provided at the top of the pad (11), and a number of electric push rods (20) are provided on the outside of the motor (19) to drive the displacement of the corresponding slide rod (13).

5. An agricultural drip irrigation device for preventing soil erosion and water evaporation according to claim 4, characterized in that: The output end of the motor (19) extends to the bottom of the second gear (21), and the first gear (16) is located outside the second gear (21) and meshes with the second gear (21).

6. An agricultural drip irrigation device for preventing soil erosion and water evaporation according to claim 1, characterized in that: The inner liner (2) is provided with a docking cover (22) on the outside. The support ring (10) is installed in the middle of the docking cover (22) by bolts, and the top of the docking cover (22) extends to the bottom of the drip irrigation box (1).

Images