Agricultural product cultivation device with water supply structure

Abstract

The invention discloses an agricultural product cultivation device with a water supply structure, and relates to the technical field of seed and seedling cultivation, the agricultural product cultivation device comprises a cultivation assembly, the cultivation assembly comprises a cultivation frame, a water tank is fixed at the top of the cultivation frame, a drip irrigation header pipe is fixed at the bottom of the water tank, and drip irrigation branch pipes are fixed on the surface of the drip irrigation header pipe. Through the collaborative design of the cultivation assembly and the water supply assembly, the integrated function of seed and seedling cultivation gravity automatic unlocking, seedling substrate humidity induction water supply and staged self-adaptive drip irrigation is achieved, water leakage caused by mistaken touch is avoided, the water supply safety is higher, water supply starting and stopping are controlled in a pure mechanical induction linkage mode, the adaptability is high, and the water supply effect is good. The drip irrigation process is divided into two-section type water supply, namely high-flow-speed rapid water replenishing in the front-middle section and drip speed gradually reduced along with expansion of the soil sensitive blocks in the rear section, so that early-stage rapid water supply is guaranteed, the situation that the water amount is too large or insufficient at a time in the later stage is avoided, uniform and reasonable water supply is achieved, soil water accumulation or drought is effectively prevented, and the cultivation quality of agricultural products is improved.

Description

Technical Field

[0001] This invention relates to the field of seed and seedling cultivation technology, and in particular to an agricultural product cultivation device with a water supply structure. Background Technology

[0002] Seed and seedling cultivation devices are the core equipment for seed germination and seedling cultivation in modern agricultural seedling production. The accuracy of water supply, the rationality of water control, the degree of automation of operation, and the safety of use directly determine the seed germination rate, seedling uniformity, and seedling vigor rate, and are the key foundation for ensuring large-scale and standardized seedling production.

[0003] Currently, traditional agricultural product cultivation devices with water supply systems mostly rely on manual valve opening for water supply, lacking a gravity-linked locking mechanism. Without seedling trays, accidental valve opening or misoperation can easily lead to water leakage, wasting water resources and causing excessive humidity in the seedling area. Furthermore, valve opening and closing are unrelated to the state of the seedling trays, with water supply timing entirely dependent on manual control. This can easily result in improper watering timing or excessive watering, leading to prolonged water accumulation in the seedling substrate, reduced aeration, and consequently, seed hypoxia and root rot, severely reducing seedling success rates. Water supply relies on manual observation and judgment, making it impossible to adjust water supply based on the actual dryness and wetness of the substrate. This can easily lead to substrate drought affecting seedling growth or excessive watering causing root rot and seedling death. Moreover, the water flow rate is often fixed and unadjustable, failing to match the differentiated water requirements of seed germination and seedling growth stages. In the early stages, it is difficult to quickly saturate the substrate, while in the later stages, excessive water can easily damage the substrate structure. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing agricultural product cultivation devices with water supply structures, the present invention is proposed.

[0006] Therefore, the problems to be solved by this invention are that valves are prone to leakage due to accidental touch or misoperation, the timing of water supply is entirely dependent on manual control, the start and stop of water supply depends on manual observation and judgment, and the water supply flow rate is mostly a fixed and non-adjustable mode.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an agricultural product cultivation device with a water supply structure, comprising: a cultivation component including a cultivation frame, a water tank fixed to the top of the cultivation frame, a drip irrigation main pipe fixed to the bottom of the water tank, drip irrigation branch pipes fixed to the surface of the drip irrigation main pipe, a drip irrigation head fixed to one end of the drip irrigation branch pipe, drip irrigation holes formed on the surface of the drip irrigation head, a support plate fixed to the inner cavity of the cultivation frame, a placement frame fixed to the top of the support plate, a limit frame fixed to the top of the placement frame, and a support frame fixed to the bottom of the inner cavity of the limit frame; and a water supply component disposed in the inner cavity of the limit frame, including a pressure-bearing component fixed to the surface of the support frame, a water supply start / stop component disposed on the surface of the drip irrigation branch pipe, a protective cover fixed to one side of the limit frame, a self-starting / stopping component disposed in the inner cavity of the protective cover, a locking component disposed in the inner cavity of the protective cover, and a water flow self-adjusting component disposed on the surface of the drip irrigation head.

[0008] As a preferred embodiment of the agricultural product cultivation device with a water supply structure described in this invention, wherein: a water inlet valve is fixed to the top of the water tank, the water tank is made of transparent plastic, limit sliding seats are fixed to both sides of the surface of the drip irrigation head, the pressure bearing component includes a first spring fixed to the top of the support frame, a pressure plate is fixed to the top of the first spring, a vent hole is opened on the top of the pressure plate, a spring piece is fixed to the center of the top of the support frame, a V-shaped plate is fixed to the top of the spring piece, and a soil-sensing block is fixed to the top of the V-shaped plate.

[0009] As a preferred embodiment of the agricultural product cultivation device with a water supply structure described in this invention, the water supply start / stop component includes a water supply valve fixed to the surface of the drip irrigation branch pipe, a rotating plate fixed on the valve stem of the water supply valve, a locking hole opened on the surface of the rotating plate, a torsion spring sleeved on the surface of the rotating plate, one end of the torsion spring fixed to the surface of the rotating plate, and the other end of the torsion spring fixed to the surface of the water supply valve.

[0010] As a preferred embodiment of the agricultural product cultivation device with a water supply structure described in this invention, the self-starting and stopping component includes a connecting rope rotatably connected to one side of the bottom of the rotating plate, a fixing frame fixed to the bottom of the connecting rope, and a lower pressure plate slidably connected to the inner cavity of the fixing frame.

[0011] As a preferred embodiment of the agricultural product cultivation device with water supply structure described in this invention, the top of the lower pressure plate is rotatably connected to a threaded knob, the inner cavity of the threaded knob is rotatably connected to a screw, the bottom of the screw extends through to the bottom of the fixed frame and is fixed with a pull rope, the outer ring of the screw is fitted with a second spring, the top of the second spring is fixed to the bottom of the lower pressure plate, and the bottom of the second spring is fixed to the bottom of the inner cavity of the fixed frame.

[0012] As a preferred embodiment of the agricultural product cultivation device with water supply structure described in this invention, the lower pressure plate is fixed with sliders on both sides, and the inner cavity of the fixed frame is provided with grooves on both sides. One side of the slider extends into the inner cavity of the groove and is slidably connected to the inner wall of the groove.

[0013] As a preferred embodiment of the agricultural product cultivation device with a water supply structure described in this invention, the locking component includes a connecting plate fixed to one side of the pressure plate, a locking rod fixed to the top of the connecting plate, a third spring sleeved on the outer ring of the locking rod, the top of the third spring fixed to the surface of the locking rod, and the bottom of the third spring fixed to the inner wall of the protective cover.

[0014] As a preferred embodiment of the agricultural product cultivation device with a water supply structure described in this invention, the water flow self-adjusting component includes an adjusting baffle that is slidably connected to the inner cavity of the limiting slide seat. The surface of the adjusting baffle is provided with an adjusting hole, the bottom of the adjusting baffle is fixed with a pressure rod, and the top of the protective cover is provided with a second through hole for the pressure rod to slide.

[0015] As a preferred embodiment of the agricultural product cultivation device with water supply structure described in this invention, wherein: a pressure plate is fixed to the bottom of the pressure rod, the pressure plate is located below one branch of the V-shaped plate, and a third through hole is provided on the surface of the protective cover for the movement of the V-shaped plate.

[0016] As a preferred embodiment of the agricultural product cultivation device with a water supply structure described in this invention, a fourth spring is provided on the outer ring of the pressure rod, the top of the fourth spring is fixed to the surface of the pressure rod, and the bottom of the fourth spring is fixed to the inner wall of the protective cover.

[0017] The beneficial effects of this invention are as follows: Through the coordinated design of the cultivation components and the water supply components, it achieves integrated functions such as automatic gravity unlocking for seed and seedling cultivation, moisture-sensing water supply for seedling substrate, and phased adaptive drip irrigation. This significantly improves the rationality of water supply, the degree of automation, and water-saving effect. The pressure plate is pressed down by the weight of the seedling tray, which automatically disengages the locking rod from the water supply valve locking hole, releasing the valve lock. When no seedling tray is placed, the valve remains locked, preventing accidental contact and leakage at the source, thus enhancing water supply safety. The soil-sensitive block directly contacts the soil at the bottom of the seedling tray and can absorb water and expand according to changes in soil moisture. The purely mechanical sensing linkage V-shaped plate and pull rope structure require no electricity or manual intervention. It can automatically control the start and stop of water supply according to the actual water demand of the soil, with strong adaptability. The drip irrigation process is divided into two stages: the first and middle stages are characterized by rapid water replenishment with a high flow rate, and the second stage is characterized by a gradual decrease in drip rate as the soil expands. At the same time, the baffle is adjusted to move down and stagger the drip irrigation holes, and the outlet diameter is reduced synchronously. This ensures rapid water supply in the early stage while avoiding excessive or insufficient water volume in the later stage, achieving uniform and reasonable water supply. It effectively prevents soil waterlogging or drought, improves the quality of agricultural product cultivation, and the overall structure is purely mechanical linkage, with stable and reliable operation. The first water supply is automatically started when the seedling pot is placed in place, without the need for manual valve operation. It is simple to operate, water-saving and efficient, and perfectly adapts to the intelligent water supply needs of potted agricultural products. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of an agricultural product cultivation device with a water supply system.

[0020] Figure 2 This is a partial structural diagram of an agricultural product cultivation device with a water supply system.

[0021] Figure 3 Agricultural product cultivation device with water supply structure Figure 2 A magnified view of A in the middle.

[0022] Figure 4 This is a partial structural cross-sectional view of the limiting frame and pressure plate of an agricultural product cultivation device with a water supply structure.

[0023] Figure 5 This is a partial structural diagram of the drip irrigation main pipe and water supply components of an agricultural product cultivation device with a water supply structure.

[0024] Figure 6 This is a partial structural diagram of the self-starting and stopping component of an agricultural product cultivation device with a water supply system.

[0025] Figure 7 This is a partial structural diagram of the drip irrigation head and water flow self-regulating component of an agricultural product cultivation device with a water supply structure, in its exploded state.

[0026] In the diagram: 1. Cultivation component; 11. Cultivation rack; 12. Support plate; 13. Placement rack; 14. Limiting frame; 141. Support frame; 15. Seedling pot; 16. Water tank; 17. Drip irrigation main pipe; 18. Drip irrigation branch pipe; 19. Drip irrigation head; 191. Drip irrigation hole; 192. Limiting slide; 2. Water supply component; 21. Pressure bearing component; 211. First spring; 212. Pressure plate; 213. Vent hole; 214. Spring; 215. V-shaped plate; 216. Limiting cylinder; 217. Soil-sensing block; 22. Protective cover; 23. Water supply. 231. Start / stop component; 232. Water supply valve; 233. Rotating plate; 234. Locking hole; 235. Torsion spring; 24. Automatic start / stop component; 246. Connecting rope; 247. Fixing frame; 248. Screw; 248. Threaded knob; 249. Lower pressure plate; 240. Second spring; 241. Pull rope; 25. Locking component; 251. Connecting plate; 252. Locking rod; 253. Third spring; 26. Water flow self-adjusting component; 261. Adjusting baffle; 262. Follower pressure rod; 263. Fourth spring; 264. Follower pressure plate; 265. Adjusting hole. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1, referring to Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides an agricultural product cultivation device with a water supply structure, which includes a cultivation component 1 and a water supply component 2.

[0031] Specifically, the cultivation component 1 includes a cultivation rack 11, which is made of high-strength aluminum alloy, has a stable structure and good load-bearing capacity, and provides an overall support frame for the cultivation device, adapting to the needs of multi-layer agricultural product cultivation. A water tank 16 is fixed to the top of the cultivation rack 11, and a drip irrigation main pipe 17 is fixed to the bottom of the water tank 16. The drip irrigation main pipe 17 is made of flexible, water-resistant plastic pipe, ensuring smooth water flow without blockage, and connects the water tank 16 to the drip irrigation branch pipes 18 to achieve centralized water delivery. The drip irrigation branch pipes 18 are made of flexible, small-diameter plastic pipe, evenly distributed and reasonably arranged, diverting water to each drip irrigation head 19 to achieve independent water supply to different zones. The surface of the drip irrigation main pipe 17 is fixed with... There is a drip irrigation branch pipe 18, and a drip irrigation head 19 is fixed to one end of the drip irrigation branch pipe 18. The surface of the drip irrigation head 19 is provided with drip irrigation holes 191. A support plate 12 is fixed in the inner cavity of the cultivation rack 11. A placement rack 13 is fixed on the top of the support plate 12. The support plate 12 is made of hard engineering plastic, which is waterproof, corrosion-resistant and not easily deformed. It is fixed in the inner cavity of the cultivation rack 11 to provide a stable support base for the placement rack 13. The placement rack 13 is made of stainless steel or hard plastic and is fixed by riveting or bolting. It is firmly installed and detachable, which facilitates the assembly and maintenance of the device. A limit frame 14 is fixed on the top of the placement rack 13. A support frame 141 is fixed at the bottom of the inner cavity of the limit frame 14.

[0032] Specifically, the water supply component 2 is located in the inner cavity of the limiting frame 14, including a pressure-bearing component 21 fixed to the surface of the support frame 141. The support frame 141 is made of rigid plastic and is integrally formed with the limiting frame 14, providing strong rigidity and stable support, and providing installation and support space for the pressure-bearing component 21. The surface of the drip irrigation branch pipe 18 is provided with a water supply start-stop component 23. A protective cover 22 is fixed to one side of the limiting frame 14. The inner cavity of the protective cover 22 is provided with a self-starting and stopping component 24 and a locking component 25. The surface of the drip irrigation head 19 is provided with a water flow self-adjusting component 26. The protective cover 22 is made of rigid plastic, providing good protection, and encloses the self-starting and stopping component 24 and the locking component 25 to prevent dust and impurities from entering and affecting the operation.

[0033] Example 2, refer to Figures 2-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, this includes a water tank 16 with a water inlet valve fixed to its top. The water tank 16 is made of transparent food-grade plastic, offering excellent visibility for easy water level observation. The water inlet valve on the top stores cultivation water, providing a stable water source for drip irrigation. Limiting slides 192, made of rigid plastic, are fixed to both sides of the drip head 19, providing sliding guidance for the adjusting baffle 261 and ensuring smooth adjustment. The pressure-bearing component 21 includes a first spring 211 fixed to the top of the support frame 141. The first spring 211 is made of 65Mn spring steel, offering stable elasticity and fatigue resistance, and supports the pressure plate 212. After the seedling tray 15 is removed, the pressure plate 212 automatically resets. A pressure plate 212 is fixed to the top of the first spring 211. A vent 213 is opened on the top of the pressure plate 212. The vent 213 adopts a uniform opening process, which has good air permeability and ensures that the bottom of the soil can contact the outside air, thus ensuring soil permeability. A spring piece 214 is fixed at the center of the top of the support frame 141. A V-shaped plate 215 is fixed to the top of the spring piece 214. The spring piece 214 is made of 65Mn spring steel, which has good elasticity and fast reset, and supports the V-shaped plate 215. After the soil-sensitive block 217 retracts, it can drive the V-shaped plate 215 to automatically return to its position. A soil-sensitive block 217 is fixed to the top of the V-shaped plate 215. The soil-sensitive block 217 is made of high water-absorbing and expanding resin material. It expands when absorbing water and shrinks when losing water, sensing soil moisture and realizing automatic start-up, stop and adjustment of drip irrigation.

[0035] Specifically, the water supply start / stop component 23 includes a water supply valve 231 fixed to the surface of the drip irrigation branch pipe 18. The water supply valve 231 is a small rotary shut-off valve, which is sensitive to opening and closing and leak-proof, and controls the water flow of the drip irrigation branch pipe 18. A rotating plate 232 is fixed on the valve stem of the water supply valve 231. A locking hole 233 is opened on the surface of the rotating plate 232. A torsion spring 234 is sleeved on the surface of the rotating plate 232. The torsion spring 234 is made of 65Mn spring steel, which has stable torque. After the lock is released, it can drive the rotating plate 232 to rotate and automatically open the water supply valve 231. One end of the torsion spring 234 is fixed to the surface of the rotating plate 232, and the other end of the torsion spring 234 is fixed to the surface of the water supply valve 231.

[0036] Specifically, the self-starting and stopping component 24 includes a connecting rope 241 rotatably connected to one side of the bottom of the rotating plate 232. A fixing frame 242 is fixed to the bottom of the connecting rope 241. A lower pressure plate 245 is slidably connected to the inner cavity of the fixing frame 242. The connecting rope 241 is made of flexible and wear-resistant rope with high tensile strength, which transmits the tension of the fixing frame 242 and drives the rotating plate 232 to rotate in the opposite direction to close the valve.

[0037] Specifically, a threaded knob 244 is rotatably connected to the top of the lower pressure plate 245, and a screw 243 is rotatably connected to the inner cavity of the threaded knob 244. The threaded knob 244 is made of plastic and has a non-slip surface. Rotation can adjust the position of the lower pressure plate 245 to achieve precise adjustment of the water supply trigger threshold. The bottom of the screw 243 extends through to the bottom of the fixed frame 242 and is fixed with a pull rope 247. A second spring 246 is sleeved on the outer ring of the screw 243. The top of the second spring 246 is fixed to the bottom of the lower pressure plate 245. The second spring 246 is made of 65Mn spring steel and has stable elasticity. After the soil-sensitive block 217 retracts, it can drive the lower pressure plate 245 to automatically reset. The bottom of the second spring 246 is fixed to the bottom of the inner cavity of the fixed frame 242.

[0038] The threaded knob 244 is used to adjust the initial elastic force of the second spring 246. By rotating the threaded knob 244 as needed, the position of the lower pressure plate 245 can be adjusted so that the distance that the lower pressure plate 245 needs to move down when the second spring 246 reaches its maximum elastic force can be adjusted. This allows for adjustment of the position of the water supply valve 231 to be closed based on the degree of water absorption and expansion of the soil sensor block 217.

[0039] Specifically, sliders are fixed on both sides of the lower pressure plate 245, and grooves are opened on both sides of the inner cavity of the fixed frame 242. One side of the slider extends into the inner cavity of the groove and is slidably connected to the inner wall of the groove.

[0040] Specifically, the locking component 25 includes a connecting plate 251 fixed to one side of the pressure plate 212. A locking rod 252 is fixed to the top of the connecting plate 251. A third spring 253 is sleeved on the outer ring of the locking rod 252. The third spring 253 is made of 65Mn spring steel, which is elastic and stable. It drives the locking rod 252 to reset. The seedling pot 15 is automatically locked after being taken out. The top of the third spring 253 is fixed to the surface of the locking rod 252, and the bottom of the third spring 253 is fixed to the inner wall of the protective cover 22.

[0041] Specifically, the water flow self-regulating component 26 includes an adjusting baffle 261 slidably connected to the inner cavity of the limiting slide 192. The surface of the adjusting baffle 261 is provided with an adjusting hole 265. A pressure rod 262 is fixed at the bottom of the adjusting baffle 261. A second through hole for sliding of the pressure rod 262 is provided at the top of the protective cover 22.

[0042] Specifically, a pressure plate 264 is fixed to the bottom of the pressure rod 262. The pressure plate 264 is located below one branch of the V-shaped plate 215. A third through hole is provided on the surface of the protective cover 22 for the V-shaped plate 215 to move.

[0043] Specifically, a fourth spring 263 is fitted around the outer ring of the pressure rod 262. The top of the fourth spring 263 is fixed to the surface of the pressure rod 262, and the bottom of the fourth spring 263 is fixed to the inner wall of the protective cover 22. The fourth spring 263 is made of 65Mn spring steel, which has good elasticity and fast reset. After the V-shaped plate 215 returns to its original position, it can drive the adjusting baffle 261 to move up and reset automatically.

[0044] Example 3, referring to Figures 1-7 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0045] Specifically, the placement frame 13 is fixed to the top of the support plate 12 by means of rivet riveting or bolt thread connection, and the limit cylinder 216 is fixed at the center of the top of the support frame 141.

[0046] Specifically, the surface of the V-shaped plate 215 is slidably connected to the inner wall of the limiting cylinder 216, and the surface of the limiting cylinder 216 is provided with a first through hole for the V-shaped plate 215 to slide.

[0047] Specifically, the bottom of the pull rope 247 is fixed to the bottom of another branch of the V-shaped plate 215, and the top of the locking rod 252 has a smooth 45° chamfer. The locking rod 252 is located directly below the locking hole 233.

[0048] Specifically, a seedling pot 15 is placed on top of the pressure plate 212. The size of the seedling pot 15 matches the size of the limiting frame 14. The limiting frame 14 is made of hard plastic with a regular inner wall and uniform size. It can limit and position the seedling pot 15 to prevent it from shifting or tipping over during cultivation. The seedling pot 15 is made of food-grade breathable plastic. The bottom of the seedling pot 15 has a round hole for the soil sensor block 217 to pass through, ensuring that when the seedling pot 15 is placed on top of the pressure plate 212, the soil sensor block 217 can contact the soil at the bottom of the seedling pot 15. This ensures that the soil sensor block 217 can adhere to the soil and absorb water normally. The good air permeability is suitable for the growth of agricultural product roots. The size is precisely matched with the limiting frame 14, and the pot is placed stably without shaking.

[0049] When in use, the cultivation rack 11, support plate 12, placement rack 13, and limiting frame 14 are structurally stable, the seedling pot 15 is not placed, the water tank 16 has sufficient water, the drip irrigation main pipe 17 and drip irrigation branch pipe 18 are unobstructed, the drip irrigation hole 191 of the drip irrigation head 19 is aligned with the adjustment hole 265, the first spring 211 of the pressure bearing component 21 is naturally extended, the pressure plate 212 is in a high position, the spring piece 214 supports the V-shaped plate 215 in the initial position along the limiting cylinder 216, and the soil sensitive block 217 is not expanded.

[0050] The locking rod 252 of the water supply start / stop component 23 is inserted into the locking hole 233 under the action of the third spring 253, the water supply valve 231 is in the closed state, the torsion spring 234 stores power, the pull rope 247 of the self-start / stop component 24 is relaxed, the second spring 246 extends naturally, the fourth spring 263 of the water flow self-adjusting component 26 extends, and the adjusting baffle 261 is in the high position.

[0051] The seedling pot 15 containing soil and agricultural products is placed inside the limiting frame 14 and placed stably on top of the pressure plate 212. The weight of the seedling pot 15 presses down on the pressure plate 212, compressing the first spring 211. The pressure plate 212 moves down vertically, causing the connecting plate 251 on one side to descend synchronously. The locking rod 252 moves down and compresses the third spring 253. The locking rod 252 completely disengages from the locking hole 233 on the surface of the rotating plate 232, and the mechanical lock of the water supply valve 231 is automatically released, preventing accidental water leakage when there is no pot.

[0052] After the lock is released, the torsion spring 234 elastically resets, causing the rotating plate 232 to rotate upwards, driving the valve stem of the water supply valve 231 to rotate. The water supply valve 231 automatically opens fully, and the water in the water tank 16 flows out sequentially through the drip irrigation main pipe 17, the drip irrigation branch pipe 18, and the drip irrigation head 19 under the action of gravity. At this time, the adjusting hole 265 is completely aligned with the drip irrigation hole 191, and the diameter of the drip irrigation hole 191 remains at its maximum, realizing a large flow rate and rapid water supply in the front and middle sections. The V-shaped plate 215 does not move for the time being, and the pull rope 247 gradually changes from a slack state to a taut state, preparing for subsequent adjustments.

[0053] The soil-sensing block 217 passes through the ventilation hole 213 of the pressure plate 212 and comes into contact with the soil at the bottom of the seedling pot 15. After absorbing water, it gradually expands. The expanded soil-sensing block 217 presses down on the V-shaped plate 215, causing the V-shaped plate 215 to slide along the inner wall of the limiting cylinder 216, compressing the spring 214. The V-shaped plate 215 pulls down the pull rope 247, which drives the screw 243 and the lower pressure plate 245 to move down, compressing the second spring 246. The lower pressure plate 245 drives the fixing frame 242 and the connecting rope 241 to move down synchronously, starting to pull the rotating plate 232 to slowly rotate in the opposite direction, and the water supply valve 231 gradually closes.

[0054] As the V-shaped plate 215 moves downward, its branch ends press down on the pressure plate 264, causing the pressure rod 262 to move downward, compressing the fourth spring 263. The pressure rod 262 then causes the adjusting baffle 261 to slide downward along the limiting slide 192. The adjusting hole 265 on the adjusting baffle 261 gradually shifts away from the drip irrigation hole 191 of the drip irrigation head 19, and the diameter of the drip irrigation hole 191 narrows synchronously. The drip irrigation flow rate gradually decreases. When the soil block 217 expands to a saturated state, the water supply valve 231 is completely closed, and the drip irrigation stops, achieving a uniform water supply with a large flow rate in the early stage and a small flow rate in the later stage.

[0055] After the soil moisture in the seedling pot 15 is absorbed and consumed by the agricultural products, the soil sensitive block 217 loses water and shrinks, the spring piece 214 elastically resets, causing the V-shaped plate 215 to slide upward back to its original position, the pull rope 247 relaxes again, the second spring 246 resets, causing the lower pressure plate 245 and screw 243 to move upward, the connecting rope 241 relaxes, the torsion spring 234 returns to its stored state, the fourth spring 263 resets, causing the pressure rod 262 and adjusting baffle 261 to move upward, and the adjusting hole 265 and drip irrigation hole 191 are realigned.

[0056] If the seedling tray 15 is not removed, the pressure plate 212 remains in the lower position, and the system remains in a water supply standby state. After the soil becomes dry, the drip irrigation process is repeated. When the seedling tray 15 is removed from the limiting frame 14, the rotating plate 232 is manually pressed until the water supply valve 231 is in the closed state. The first spring 211 resets and drives the pressure plate 212 to move upward. The connecting plate 251 drives the locking rod 252 to move upward and re-insert the locking hole 233. The water supply valve 231 returns to the locked closed state, completely preventing water leakage.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An agricultural product cultivation device with a water supply structure, characterized in that: include, The cultivation component (1) includes a cultivation rack (11), a water tank (16) fixed to the top of the cultivation rack (11), a drip irrigation main pipe (17) fixed to the bottom of the water tank (16), a drip irrigation branch pipe (18) fixed to the surface of the drip irrigation main pipe (17), a drip irrigation head (19) fixed to one end of the drip irrigation branch pipe (18), a drip irrigation hole (191) opened on the surface of the drip irrigation head (19), a support plate (12) fixed to the inner cavity of the cultivation rack (11), a placement frame (13) fixed to the top of the support plate (12), a limit frame (14) fixed to the top of the placement frame (13), and a support frame (141) fixed to the bottom of the inner cavity of the limit frame (14); and, The water supply component (2) is located in the inner cavity of the limiting frame (14) and includes a pressure-bearing component (21) fixed to the surface of the support frame (141). The surface of the drip irrigation branch pipe (18) is provided with a water supply start-stop component (23). A protective cover (22) is fixed to one side of the limiting frame (14). The inner cavity of the protective cover (22) is provided with a self-start-stop component (24). The inner cavity of the protective cover (22) is provided with a locking component (25). The surface of the drip irrigation head (19) is provided with a water flow self-adjusting component (26).

2. The agricultural product cultivation device with a water supply structure as described in claim 1, characterized in that: A water inlet valve is fixed to the top of the water tank (16). The water tank (16) is made of transparent plastic. Limiting slides (192) are fixed to both sides of the surface of the drip head (19). The pressure bearing component (21) includes a first spring (211) fixed to the top of the support frame (141). A pressure plate (212) is fixed to the top of the first spring (211). A vent hole (213) is opened on the top of the pressure plate (212). A spring piece (214) is fixed at the center of the top of the support frame (141). A V-shaped plate (215) is fixed to the top of the spring piece (214). A soil-sensitive block (217) is fixed to the top of the V-shaped plate (215).

3. The agricultural product cultivation device with a water supply structure as described in claim 1, characterized in that: The water supply start / stop component (23) includes a water supply valve (231) fixed to the surface of the drip irrigation branch pipe (18). A rotating plate (232) is fixed on the valve stem of the water supply valve (231). A locking hole (233) is opened on the surface of the rotating plate (232). A torsion spring (234) is sleeved on the surface of the rotating plate (232). One end of the torsion spring (234) is fixed to the surface of the rotating plate (232), and the other end of the torsion spring (234) is fixed to the surface of the water supply valve (231).

4. The agricultural product cultivation device with a water supply structure as described in claim 3, characterized in that: The self-starting and stopping component (24) includes a connecting rope (241) rotatably connected to one side of the bottom of the rotating plate (232), a fixing frame (242) is fixed to the bottom of the connecting rope (241), and a lower pressure plate (245) is slidably connected to the inner cavity of the fixing frame (242).

5. The agricultural product cultivation device with a water supply structure as described in claim 4, characterized in that: The top of the lower pressure plate (245) is rotatably connected to a threaded knob (244), and the inner cavity of the threaded knob (244) is rotatably connected to a screw (243). The bottom of the screw (243) extends through to the bottom of the fixed frame (242) and is fixed with a pull rope (247). The outer ring of the screw (243) is fitted with a second spring (246). The top of the second spring (246) is fixed to the bottom of the lower pressure plate (245), and the bottom of the second spring (246) is fixed to the bottom of the inner cavity of the fixed frame (242).

6. The agricultural product cultivation device with a water supply structure as described in claim 4 or 5, characterized in that: Both sides of the lower pressure plate (245) are fixed with sliders, and both sides of the inner cavity of the fixed frame (242) are provided with sliding grooves. One side of the slider extends into the inner cavity of the sliding groove and is slidably connected to the inner wall of the sliding groove.

7. The agricultural product cultivation device with a water supply structure as described in claim 2, characterized in that: The locking component (25) includes a connecting plate (251) fixed to one side of the pressure plate (212), a locking rod (252) fixed to the top of the connecting plate (251), a third spring (253) sleeved on the outer ring of the locking rod (252), the top of the third spring (253) fixed to the surface of the locking rod (252), and the bottom of the third spring (253) fixed to the inner wall of the protective cover (22).

8. The agricultural product cultivation device with a water supply structure as described in claim 2, characterized in that: The water flow self-adjusting component (26) includes an adjusting baffle (261) slidably connected to the inner cavity of the limiting slide (192). The surface of the adjusting baffle (261) is provided with an adjusting hole (265). A pressure rod (262) is fixed at the bottom of the adjusting baffle (261). A second through hole for sliding of the pressure rod (262) is provided at the top of the protective cover (22).

9. The agricultural product cultivation device with a water supply structure as described in claim 8, characterized in that: The bottom of the pressure bar (262) is fixed with a pressure plate (264), which is located below one branch of the V-shaped plate (215). The surface of the protective cover (22) is provided with a third through hole for the V-shaped plate (215) to move.

10. The agricultural product cultivation device with a water supply structure as described in claim 8 or 9, characterized in that: The outer ring of the pressure rod (262) is fitted with a fourth spring (263), the top of the fourth spring (263) is fixed to the surface of the pressure rod (262), and the bottom of the fourth spring (263) is fixed to the inner wall of the protective cover (22).

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