A drip irrigation valve for agricultural production

Abstract

This invention discloses a drip irrigation valve for agricultural product cultivation, comprising a first body, a drive assembly, and a second body. The first body has an internal cavity, with an inlet and an outlet. A first baffle is disposed within the cavity, dividing it into a first chamber and a second chamber. The inlet and outlet communicate with the first and second chambers, respectively. A second baffle is disposed on the first baffle, with a first through hole and a second through hole respectively on the first and second baffles. The upper end of the second body communicates with the first chamber. An installation part is disposed within the second body, containing a tubular sliding channel. One end of the sliding channel communicates with the interior of the second body, and the other end communicates with the outside. A dripper is slidably and sealingly fitted within the sliding channel, with a drip opening at the end of the dripper away from the open end. A first elastic element is disposed between the dripper and the installation part. The purpose of this invention is to solve the technical problem of dripper opening clogging.

Description

Technical Field

[0001] This invention belongs to the field of drip irrigation technology, specifically, it relates to a drip irrigation valve for agricultural product cultivation. Background Technology

[0002] Traditional irrigation methods, such as flood irrigation and sprinkler irrigation, have significant drawbacks. These methods expose large amounts of water directly to the air, and direct sunlight and wind accelerate the evaporation process, causing a large amount of precious water resources to be wasted before they are effectively utilized by crops.

[0003] In contrast, modern drip irrigation technology revolutionizes irrigation by inserting drip emitters deep into the soil via drip valves. When the drip valve outlet reaches deep into the soil, water can directly penetrate to the crop root zone, significantly reducing the surface area exposed to air and thus effectively minimizing evaporation loss. Furthermore, this deep-soil drip irrigation method maintains continuous moisture around the roots, preventing soil cracking or compaction caused by surface dryness, and creating a more stable and suitable water environment for crops. However, despite the numerous advantages of deep-soil drip emitters, there are also potential risks of clogging.

[0004] ① Blockage caused by physical pressure on the soil:

[0005] When the dripper head is deeply embedded in the soil, it may be compressed by the surrounding soil. Under this pressure, soil particles may gradually aggregate and clog the dripper opening, resulting in poor water flow or complete blockage.

[0006] ② Blockage caused by long-term soil erosion:

[0007] When drippers are exposed to the soil environment for a long time, they will inevitably be subject to soil erosion. Tiny particles, organic matter, and chemicals in the soil may gradually adhere to the surface of the dripper, forming a thick layer of deposits. Over time, these deposits will continue to accumulate and harden, eventually clogging the dripper inlet. Summary of the Invention

[0008] In view of the shortcomings of the prior art, the purpose of this invention is to provide a drip irrigation valve for agricultural product planting, so as to solve the technical problems of drip outlet clogging when the dripper is deeply embedded in the soil and drip outlet clogging when the dripper is exposed to the soil for a long time.

[0009] To achieve the aforementioned objectives, the technical solution adopted by this invention includes: a drip irrigation valve for agricultural product cultivation, comprising:

[0010] A first body has an internal cavity. The first body is provided with an inlet and an outlet. A first baffle is provided inside the cavity, dividing the cavity into a first chamber and a second chamber. The inlet and outlet are respectively connected to the first chamber and the second chamber. A second baffle is provided on the first baffle, and the second baffle is movable relative to the first baffle. A first through hole and a second through hole are respectively provided on the first baffle and the second baffle. When the first baffle moves relative to the second baffle, the first through hole and the second through hole can be made to coincide or be staggered. When they coincide, the first chamber and the second chamber are connected. When they are staggered, the first chamber and the second chamber are isolated.

[0011] A driving component enables the first baffle and the second baffle to generate continuous relative movement so that the first through hole and the second through hole periodically overlap.

[0012] The second body is arranged vertically and has a hollow structure. The upper end of the second body is connected to the first cavity. An installation part is provided inside the second body. The installation part has a tubular sliding channel. One end of the sliding channel is connected to the interior of the second body, and the other end is connected to the outside. A dripper is slidably sealed inside the sliding channel. The dripper is a hollow structure with one open end, and the open end of the dripper is set inward. The outer wall of the dripper away from the open end has a drip opening that communicates with the interior of the dripper. A first elastic element for dripper reset is provided between the dripper and the installation part. When the first through hole and the second through hole are misaligned, the pressure inside the first cavity can be increased under the action of water flow inertia to push the dripper to slide outward and make the drip opening extend out of the installation part.

[0013] Compared with the prior art, the advantages of the present invention include:

[0014] (1) The present invention provides a drip irrigation valve for agricultural product cultivation. A driving component drives a first baffle and a second baffle to move relative to each other, causing the first and second through holes to periodically overlap. This results in periodic rises and falls in the pressure of the first chamber, causing the dripper to periodically extend and retract, dripping water. The pressure change in the first chamber directly drives the dripper's extension and retraction, eliminating the need for electronic sensors or control units. No power supply is required, making it suitable for remote or power-deficient agricultural scenarios, thus reducing operating costs.

[0015] (2) The present invention provides a drip irrigation valve for agricultural product planting. The drip head periodically expands and contracts, so that the drip head is not exposed to the soil for a long time, which reduces the erosion of the drip head by the soil, reduces the possibility of small particles, organic matter and chemical substances in the soil adhering to the surface of the drip head, and reduces the risk of clogging.

[0016] (3) The drip irrigation valve for agricultural product cultivation provided by this invention, when the second body is installed deep into the soil, since water is not flowing through the drip irrigation pipe before installation is completed, the dripper head retracts into the sliding channel under the action of the first elastic element. Furthermore, since the drip outlet is installed on the side wall of the dripper head, the drip outlet is sealed by the side wall of the sliding channel, preventing it from contacting the soil. Therefore, when the dripper head is partially embedded in the soil, it is not easily compressed by the surrounding soil. Consequently, soil particles are less likely to clog the drip outlet under pressure.

[0017] (4) The present invention provides a drip irrigation valve for agricultural product planting. When the device is in use, the drip head slides periodically in the sliding channel and generates a self-cleaning effect during the sliding to remove blockages in the sliding channel.

[0018] (5) The present invention provides a drip irrigation valve for agricultural product planting, wherein the dripper periodically extends and retracts to drip water, which can effectively avoid continuous drip irrigation and improve water resource utilization.

[0019] (6) The present invention provides a drip irrigation valve for agricultural product cultivation. The second body is deeply embedded in the soil, which can not only fix the drip irrigation pipe and reduce the possibility of displacement, but also allow water to directly penetrate into the crop root layer, greatly reducing the contact area with air and thus effectively reducing evaporation loss. At the same time, the deep-rooted drip irrigation method can also maintain the continuous moisture of the soil around the roots, avoiding soil cracking or compaction caused by surface dryness, and creating a more suitable water environment for crops.

[0020] Furthermore, the cavity has an elongated structure, with an inlet and an outlet at each end, and the second baffle is rotatably connected to the first baffle;

[0021] The drive assembly includes a base fixedly connected to the second baffle, and blades are provided on the base. The flow of water can drive the blades to rotate, so that the second baffle rotates relative to the first baffle.

[0022] Furthermore, a mounting bracket is provided inside the cavity, and a rotating shaft is rotatably connected to the mounting bracket. The rotating shaft is arranged along the length of the cavity, has a predetermined rotation direction, and can only rotate along the predetermined rotation direction. The predetermined rotation direction of the rotating shaft is consistent with the rotation direction of the blade.

[0023] The second baffle is sleeved on the rotating shaft, and a toggle assembly is provided between the second baffle and the rotating shaft. The first baffle is sleeved on the rotating shaft and slides and seals with the cavity along the length of the cavity. A second elastic element is provided between the first baffle and the mounting bracket. When the first through hole and the second through hole are misaligned, the pressure inside the first cavity can be increased under the action of water flow inertia to push the first baffle and the second baffle to move away from the first cavity. When the pressure is restored, they move towards the first cavity under the action of the second elastic element. At the same time, the toggle assembly toggles the second baffle to rotate a certain angle along a predetermined rotation direction so that the first through hole and the second through hole coincide.

[0024] Furthermore, the actuating component includes a mounting tube, which is sleeved outside the rotating shaft. One end of the mounting tube is fixedly connected to the second baffle. The inner wall of the mounting tube is provided with continuous wave grooves along its circumferential direction. The two ends of the wave grooves are connected. The wave grooves include straight grooves and inclined grooves. There are multiple straight grooves and inclined grooves, and the number of straight grooves and inclined grooves is the same. The straight grooves are arranged along the axis of the rotating shaft. The straight grooves and inclined grooves are arranged alternately. The two ends of the inclined grooves are respectively connected to the opposite ends of two adjacent straight grooves.

[0025] The rotating shaft has a sliding hole, and a locking pin is slidably fitted inside the sliding hole. The end of the locking pin away from the sliding hole extends into the wave groove. A third elastic element is provided between the locking pin and the sliding hole. Guide elements are provided at the two connecting points of the inclined groove and the two opposite ends of the two adjacent straight grooves, respectively.

[0026] Furthermore, the outer end of the sliding channel is inclined downwards.

[0027] Furthermore, the drip opening is located on the underside of the dripper.

[0028] Furthermore, the drip irrigation valve also includes a flow-limiting ring fixed inside the drip irrigation pipe, the flow-limiting ring being located on the side near the outlet where the inlet connects to the drip irrigation pipe.

[0029] Furthermore, the second body is a cylindrical structure, and the lower end of the second body is provided with a piercing part to facilitate piercing the soil. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0032] Figure 2 for Figure 1 Schematic diagram of cross-section Figure 1 ;

[0033] Figure 3 for Figure 1 Schematic diagram of cross-section Figure 2 ;

[0034] Figure 4 Schematic diagram of the drive component Figure 1 ;

[0035] Figure 5 Schematic diagram of the drive component Figure 2 ;

[0036] Figure 6 This is a schematic diagram of the installation pipe.

[0037] Figure label:

[0038] Drip irrigation pipe 1, first body 2, second body 3, inlet 4, outlet 5, first baffle 6, first cavity 7, second cavity 8, second baffle 9, first through hole 10, second through hole 11, mounting part 12, sliding channel 13, dripper 14, drip outlet 15, first elastic element 16, base 17, blade 18, mounting bracket 19, rotating shaft 20, second elastic element 21, mounting pipe 22, corrugated groove 23, straight groove 24, inclined groove 25, sliding hole 26, locking post 27, third elastic element 28, guide element 29, flow limiting ring 30, puncture part 31. Detailed Implementation

[0039] In view of the shortcomings of the prior art, the inventors of this invention, through long-term research and extensive practice, have proposed the technical solution of this invention. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples in the embodiments of this application.

[0040] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made on the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0042] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0043] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] Please see Figure 1-6 The present invention provides a technical solution: a drip irrigation valve for agricultural product planting, comprising a first body 2, a driving component and a second body 3.

[0045] See Figure 1-2 The first body 2 has an internal cavity, and an inlet 4 and an outlet 5 are provided on the first body 2. (See reference...) Figure 3The cavity contains a first baffle 6, which divides the cavity into a first chamber 7 and a second chamber 8. An inlet 4 and an outlet 5 communicate with the first chamber 7 and the second chamber 8, respectively. A second baffle 9 is mounted on the first baffle 6, and the second baffle 9 can move relative to the first baffle 6. The first baffle 6 and the second baffle 9 each have a first through hole 10 and a second through hole 11. When the first baffle 6 moves relative to the second baffle 9, the first through hole 10 and the second through hole 11 can overlap or be offset. When they overlap, the first chamber 7 and the second chamber 8 are connected; when they are offset, the first chamber 7 and the second chamber 8 are isolated. In other words, when they overlap, water can enter the second chamber 8 from the first chamber 7 and then flow out from the outlet 5; when they are offset, the first chamber 7 and the second chamber 8 are isolated, the water flow is cut off, and the inertia of the water flow causes the pressure inside the first chamber 7 to increase.

[0046] It should be noted that the relative motion between the second baffle 9 and the first baffle 6 can be either sliding or rotating. Furthermore, relative motion can be interpreted as: 1. The first baffle 6 is stationary, and the second baffle 9 is moving; 2. The first baffle 6 is moving, and the second baffle 9 is stationary; 3. Both the second baffle 9 and the first baffle 6 are moving, but their speeds and directions differ. In summary, the above methods are based on the premise that the continuous relative motion between the first baffle 6 and the second baffle 9 ensures that the first through hole 10 and the second through hole 11 continuously coincide.

[0047] The drive assembly is responsible for causing the first baffle 6 and the second baffle 9 to generate continuous relative motion, resulting in the first through hole 10 and the second through hole 11 periodically coinciding, thereby causing the internal pressure of the first cavity 7 to cycle in a manner of sudden increase-slow decrease-sudden increase.

[0048] See Figure 2The second body 3 is vertically positioned and has a hollow structure. During use, the second body 3 is embedded deep into the soil, and water is only introduced for irrigation after installation. The upper end of the second body 3 communicates with the first cavity 7. An installation part 12 is provided inside the second body 3, and the installation part 12 has a tubular sliding channel 13. One end of the sliding channel 13 communicates with the interior of the second body 3, and the other end communicates with the outside. A dripper 14 is slidably sealed within the sliding channel 13, and the sliding seal between the dripper 14 and the sliding channel 13 is similar to the sliding seal of a cylindrical piston. The dripper 14 is a hollow structure with one open end, and the open end of the dripper 14 faces inward. An outlet 15 communicating with the interior of the dripper 14 is opened on the outer wall of the end away from the open end. A first elastic element 16 for resetting the dripper 14 is provided between the dripper 14 and the installation part 12. Specifically, the first elastic element 16 is a first spring, one end of which is fixedly connected to the drip head 14, and the other end is fixedly connected to the mounting part 12.

[0049] When the first through hole 10 and the second through hole 11 are misaligned, the first cavity 7 and the second cavity 8 are isolated. At this time, the inertia of the water flow may cause the internal pressure of the first cavity 7 to increase, pushing the dripper 14 outwards, causing the drip nozzle 15 to extend beyond the mounting part 12, thus dripping water. It should be noted that when the dripper 14 extends outwards from the mounting part 12 (the second body 3 is now deeply embedded in the soil), it will compress the soil to facilitate the smooth extension of the dripper 14. Since the soil in which crops are grown is generally fertile and loose, this does not significantly affect the extension of the dripper 14. When the first through hole 10 and the second through hole 11 coincide, the pressure decreases, and the elastic element pulls the dripper 14 back, the drip nozzle 15 retracts, and the dripping stops. This may form a pulsed drip irrigation system, dripping water periodically according to pressure changes.

[0050] In the specific implementation of the above plan:

[0051] ① The drive assembly drives the first baffle 6 and the second baffle 9 to move relative to each other, causing the first through hole 10 and the second through hole 11 to periodically overlap. This results in the periodic rise and fall of the pressure in the first cavity 7, and the dripper 14 periodically extends and retracts to drip water. The pressure change in the first cavity 7 directly drives the extension and retraction of the dripper 14, eliminating the need for electronic sensors or control units. No power supply is required, making it suitable for remote or power-deficient agricultural scenarios, thus reducing operating costs.

[0052] ② The periodic expansion and contraction of the dripper 14 prevents it from being exposed to the soil for a long time, reducing soil erosion of the dripper 15 and reducing the possibility of small particles, organic matter and chemicals in the soil adhering to the surface of the dripper 14, thus reducing the risk of clogging.

[0053] ③ When the second body 3 is installed deep into the soil, since water is not flowing through the drip irrigation pipe 1 before installation is complete, the dripper 14 retracts into the sliding channel 13 under the action of the first elastic element 16. Furthermore, because the drip outlet 15 is installed on the side wall of the dripper 14, it is sealed by the side wall of the sliding channel 13, preventing the drip outlet 15 from contacting the soil. Therefore, when the dripper 14 is partially embedded in the soil, it is less susceptible to pressure from the surrounding soil. Consequently, soil particles are less likely to clog the drip outlet 15 under pressure.

[0054] ④ When the device is in use, the dripper 14 slides periodically in the sliding channel 13 and generates a self-cleaning effect during sliding to remove blockages in the sliding channel 13.

[0055] ⑤ The 14 drippers with periodic extension and retraction can effectively avoid continuous drip irrigation and improve water resource utilization.

[0056] ⑥ The second body 3 penetrates deep into the soil, which not only fixes the drip irrigation pipe 1, reducing the possibility of displacement, but also allows water to directly penetrate into the crop root layer, greatly reducing the contact area with air and thus effectively reducing evaporation loss. At the same time, the deep-rooted drip irrigation method can maintain the continuous moisture of the soil around the roots, avoiding soil cracking or compaction caused by surface dryness, and creating a more suitable water environment for crops.

[0057] See Figure 3 In this embodiment: the cavity is a long strip structure; specifically, the first body 2 is a hollow cylindrical structure. The two ends of the cavity are an inlet 4 and an outlet 5, respectively, and the second baffle 9 is rotatably connected to the first baffle 6.

[0058] The drive assembly includes a base 17 fixedly connected to the second baffle 9, and a blade 18 is provided on the base 17. The flow of water can drive the blade 18 to rotate, so that the second baffle 9 rotates relative to the first baffle 6.

[0059] After irrigation water enters the first body 2 (i.e., the cylindrical cavity), it directly drives the blades 18 on the base 17 to rotate. The rotation of the blades 18 causes the second baffle 9 to rotate relative to the first baffle 6, thereby controlling the alignment of the first through hole 10 and the second through hole 11, thus regulating the pressure in the first cavity 7 and driving the dripper 14 to periodically extend and retract to drip water. This device relies on the kinetic energy of water flow for propulsion, requiring no electricity or electronic components, eliminating dependence on external energy sources, improving resource utilization efficiency, and reducing equipment costs and operating energy consumption. Furthermore, this device is more suitable for remote agricultural scenarios without grid coverage.

[0060] Additionally, it should be noted that when the blade 18 rotates, causing the first through hole 10 and the second through hole 11 to become misaligned, the first cavity 7 and the second cavity 8 become isolated from each other. However, because the blade 18 is driven to rotate by the water flow, even though the first through hole 10 and the second through hole 11 are misaligned, the blade 18 still has the inertia to continue rotating. With this inertia, the blade 18 can continue to rotate at a certain angle, and by rotating this angle, the first through hole 10 and the second through hole 11 can be made to overlap again, thereby increasing the possibility of continuous operation of the device.

[0061] See Figure 3 In this embodiment: a mounting bracket 19 is provided inside the cavity, and a rotating shaft 20 is rotatably connected to the mounting bracket 19. The rotating shaft 20 is arranged along the length direction of the cavity, has a predetermined rotation direction, and can only rotate along the predetermined rotation direction. As is well known to those skilled in the art, this can be achieved by a one-way bearing or a ratchet mechanism. The predetermined rotation direction of the rotating shaft 20 is consistent with the rotation direction of the blade 18.

[0062] The second baffle 9 is sleeved on the rotating shaft 20. A toggle assembly is provided between the second baffle 9 and the rotating shaft 20. When the toggle assembly slides back on the second baffle 9 under the elastic force of the second elastic element 21, it triggers the second baffle 9 to rotate a certain angle along a predetermined rotation direction so that the first through hole 10 and the second through hole 11 can re-overlap. The first baffle 6 is sleeved on the rotating shaft 20. The first baffle 6 slides and seals with the cavity along the length of the cavity. Specifically, the first baffle 6 seals against the inner wall of the cavity. During the sliding process of the first baffle 6 along the length of the cavity, water will not flow through the gap between the first baffle 6 and the cavity, but can only flow through the first through hole 10. A second elastic element 21 is provided between the first baffle 6 and the mounting bracket 19. Specifically, the second elastic element 21 is a second spring. The second spring is located between the first baffle 6 and the mounting bracket. The second spring is sleeved on the outside of the rotating shaft 20. One end of the second spring is fixedly connected to the first baffle 6, and the other end is fixedly connected to the mounting bracket.

[0063] When the first through hole 10 and the second through hole 11 are misaligned, the pressure inside the first cavity 7 increases under the action of water flow inertia, thereby pushing the first baffle 6 and the second baffle 9 to move away from the first cavity 7. During this process, the second elastic element 21 is elastically compressed. When the pressure returns to normal, under the action of the second elastic element 21, the first baffle 6 and the second baffle 9 will move closer to the first cavity 7. At the same time, the actuating component will rotate the second baffle 9 by a certain angle along a predetermined rotation direction, so that the first through hole 10 and the second through hole 11 coincide.

[0064] By setting a toggle component, when the pressure is restored and the second elastic element 21 drives the second baffle 9 to move closer to the first cavity 7, the second baffle 9 can be toggleed to rotate a certain angle along a predetermined rotation direction, so that the first through hole 10 and the second through hole 11 coincide, so that the device can continue to operate.

[0065] See Figure 3 In this embodiment: the actuating component includes a mounting tube 22, which is sleeved on the outside of the rotating shaft 20. The mounting tube 22 is located on the side of the second baffle 9 facing away from the first baffle 6. One end of the mounting tube 22 is fixedly connected to the second baffle 9. The inner wall of the mounting tube 22 is provided with a continuous wave groove 23 along its circumferential direction. The two ends of the wave groove 23 are connected. The wave groove 23 includes a straight groove 24 and an inclined groove 25. There are multiple straight grooves 24 and inclined grooves 25, and the number of straight grooves 24 and inclined grooves 25 is the same. The straight grooves 24 are arranged along the axis of the rotating shaft 20. The straight grooves 24 and inclined grooves 25 are arranged alternately. The two ends of the inclined groove 25 are respectively connected to the opposite ends of two adjacent straight grooves 24.

[0066] A sliding hole 26 is provided on the rotating shaft 20, extending along the diameter of the rotating shaft 20. A retaining post 27 is slidably fitted inside the sliding hole 26, with one end of the retaining post 27 extending into the wave groove 23 away from the sliding hole 26. A third elastic element 28 is provided between the retaining post 27 and the sliding hole 26. Specifically, the third elastic element 28 is a third spring, with one end fixedly connected to the retaining post 27 and the other end fixedly connected to the bottom of the sliding hole 26. Guide elements 29 are provided at the two connecting points at the two ends of the inclined groove 25, which are respectively opposite to the two ends of the adjacent straight grooves 24. Specifically, the guide element 29 is a guide plate with an inclined surface. The inclined surface is positioned closer to the predetermined rotation direction, which is the right side in this embodiment. The outer side of the inclined surface is inclined along the predetermined rotation direction, which is inclined to the right in this embodiment.

[0067] When the first through hole 10 and the second through hole 11 coincide, the blade 18 rotates, causing the second baffle 9 to rotate. Because the locking pin 27 is engaged within the straight groove 24 of the wave groove 23 under the action of the third elastic element 28, and because the locking pin 27 is located at the end of the straight groove 24 away from the first cavity 7 under the elastic force of the second elastic element 21, when the second baffle 9 rotates, it can drive the rotating shaft 20 to rotate synchronously under the action of the locking pin 27. It should be noted that because the predetermined rotation direction of the rotating shaft 20 is consistent with the rotation direction of the blade 18, the rotating shaft 20 can rotate smoothly during this process. As for the first baffle 6, since it can only slide along the length of the cavity, the rotation of the second baffle 9 achieves the relative rotation of the first baffle 6 and the second baffle 9.

[0068] When the first through hole 10 and the second through hole 11 are misaligned, the first baffle 6 and the second baffle 9 move away from the first cavity 7 under pressure, the second elastic element 21 is compressed, and the locking pin 27 moves within the straight groove 24 to the end of the straight groove 24 closest to the first cavity 7. When the pressure is restored, the first baffle 6 and the second baffle 9 move towards the first cavity 7 under the action of the second elastic element 21. At this time, under the action of the guide 29, the locking pin 27 can only move away from the first cavity 7 along the inclined groove 25 near the end of the first cavity 7. Since the rotating shaft 20 can only rotate in a predetermined rotation direction, the locking pin 27 can drive the mounting tube 22 to rotate in the predetermined rotation direction, thereby driving the second baffle 9 to rotate, so that the first through hole 10 and the second through hole 11 can re-align.

[0069] It should be noted that if the mounting tube 22 is fixed and the rotating shaft 20 can rotate arbitrarily, then the sliding of the locking pin 27 in the inclined groove 25 will cause the rotating shaft 20 to rotate in the opposite direction to the predetermined rotation direction. However, in this embodiment, since the rotating shaft 20 can only rotate in the predetermined rotation direction, the sliding of the locking pin 27 in the inclined groove 25 should drive the mounting tube 22 to rotate in the predetermined rotation direction.

[0070] In this embodiment: To reduce the influence of gravity when the dripper 14 slides, the outer end of the sliding channel 13 is inclined downwards (not shown in the figure). When the dripper 14 is pressed and slides, it will slide downwards along the sliding channel 13. At this time, part of the driving force for its sliding comes from gravity. Setting the outer end of the sliding channel 13 to be inclined downwards can effectively reduce the influence of gravity on the sliding of the dripper 14, making the sliding process of the dripper 14 smoother.

[0071] See Figure 2 In this embodiment: to further reduce the interference from soil when the drip nozzle 15 extends out of the sliding channel 13, the drip nozzle 15 is located on the lower side of the dripper head 14. When the dripper head 14 extends out of the sliding channel 13, its upper part is blocked by the dripper head 14 itself. Under the action of gravity, the soil will accumulate on top of the dripper head 14, thus making it less likely to affect the drip nozzle 15.

[0072] See Figure 1 In this embodiment, to change the water flow rate into the cavity and thus increase the pressure formed when the first through hole 10 and the second through hole 11 are misaligned, the drip valve is also equipped with a flow-limiting ring 30. This flow-limiting ring 30 is fixedly installed inside the drip irrigation pipe 1 and located on the side near the outlet 5 at the connection between the inlet 4 and the drip irrigation pipe 1. The flow-limiting ring 30 increases the water flow rate into the first cavity 7, thereby increasing the pressure formed within the cavity when the first through hole 10 and the second through hole 11 are misaligned.

[0073] See Figure 1In this embodiment: In order to facilitate the insertion of the second body 3 into the soil, the second body 3 is a cylindrical structure, and the lower end of the second body 3 is provided with a piercing part 31 to facilitate piercing the soil.

[0074] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A drip irrigation valve for agricultural product cultivation, characterized in that, include: A first body has an internal cavity. The first body is provided with an inlet and an outlet. A first baffle is provided inside the cavity, dividing the cavity into a first chamber and a second chamber. The inlet and outlet are respectively connected to the first chamber and the second chamber. A second baffle is provided on the first baffle, and the second baffle is movable relative to the first baffle. A first through hole and a second through hole are respectively provided on the first baffle and the second baffle. When the first baffle moves relative to the second baffle, the first through hole and the second through hole can be made to coincide or be staggered. When they coincide, the first chamber and the second chamber are connected. When they are staggered, the first chamber and the second chamber are isolated. A driving component enables the first baffle and the second baffle to generate continuous relative movement so that the first through hole and the second through hole periodically overlap. The second body is arranged vertically and has a hollow structure. The upper end of the second body is connected to the first cavity. An installation part is provided inside the second body. The installation part has a tubular sliding channel. One end of the sliding channel is connected to the interior of the second body, and the other end is connected to the outside. A dripper is slidably sealed inside the sliding channel. The dripper is a hollow structure with one open end, and the open end of the dripper is set inward. The outer wall of the dripper away from the open end has a drip opening that communicates with the interior of the dripper. A first elastic element for dripper reset is provided between the dripper and the installation part. When the first through hole and the second through hole are misaligned, the pressure inside the first cavity can be increased under the action of water flow inertia to push the dripper to slide outward and make the drip opening extend out of the installation part. The cavity has a long strip structure, with an inlet and an outlet at each end, and the second baffle is rotatably connected to the first baffle. The drive assembly includes a base fixedly connected to the second baffle, and blades are provided on the base. The flow of water can drive the blades to rotate, so that the second baffle rotates relative to the first baffle.

2. The drip irrigation valve for agricultural product cultivation according to claim 1, characterized in that: An installation bracket is provided inside the cavity, and a rotating shaft is rotatably connected to the installation bracket. The rotating shaft is arranged along the length of the cavity, has a predetermined rotation direction, and can only rotate along the predetermined rotation direction. The predetermined rotation direction of the rotating shaft is consistent with the rotation direction of the blade. The second baffle is sleeved on the rotating shaft, and a toggle assembly is provided between the second baffle and the rotating shaft. The first baffle is sleeved on the rotating shaft and slides and seals with the cavity along the length of the cavity. A second elastic element is provided between the first baffle and the mounting bracket. When the first through hole and the second through hole are misaligned, the pressure inside the first cavity can be increased under the action of water flow inertia to push the first baffle and the second baffle to move away from the first cavity. When the pressure is restored, they move towards the first cavity under the action of the second elastic element. At the same time, the toggle assembly toggles the second baffle to rotate a certain angle along a predetermined rotation direction so that the first through hole and the second through hole coincide.

3. A drip irrigation valve for agricultural product cultivation according to claim 2, characterized in that: The actuating component includes a mounting tube that is sleeved around the rotating shaft. One end of the mounting tube is fixedly connected to a second baffle. The inner wall of the mounting tube is provided with continuous wave grooves along its circumference. The two ends of the wave grooves are connected. The wave grooves include straight grooves and inclined grooves. There are multiple straight grooves and inclined grooves, and the number of straight grooves and inclined grooves is the same. The straight grooves are arranged along the axis of the rotating shaft. The straight grooves and inclined grooves are arranged alternately. The two ends of the inclined grooves are respectively connected to the opposite ends of two adjacent straight grooves. The rotating shaft has a sliding hole, and a retaining post is slidably fitted inside the sliding hole. The end of the retaining post away from the sliding hole extends into the wave groove. A third elastic element is provided between the retaining post and the sliding hole. Guide elements are provided at the two connecting points of the inclined groove and the two opposite ends of the two adjacent straight grooves, respectively.

4. A drip irrigation valve for agricultural product cultivation according to any one of claims 1-3, characterized in that: The sliding channel is inclined downward at the outer end.

5. A drip irrigation valve for agricultural product cultivation according to claim 4, characterized in that: The drip opening is located on the underside of the dripper.

6. A drip irrigation valve for agricultural product cultivation according to claim 5, characterized in that: The drip irrigation valve also includes a flow-limiting ring fixed inside the drip irrigation pipe, which is located near the outlet at the connection between the inlet and the drip irrigation pipe.

7. A drip irrigation valve for agricultural product cultivation according to claim 6, characterized in that: The second body is a cylindrical structure, and the lower end of the second body is provided with a piercing part to facilitate piercing the soil.

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