Soilless culture device with adjustable spacing

Abstract

The soilless culture device comprises a water culture box, one side of the water culture box is provided with a circulation structure, the circulation structure comprises a backflow box and a backflow pipe, a filtering cavity, a water culture cavity and a backflow cavity are formed in the water culture box, two partition plates are fixed in the water culture box, the backflow box communicates with the filtering cavity, and the backflow pipe communicates with the backflow box; the backflow pipe is communicated with the backflow box and the backflow cavity, and a sterilization structure is arranged in the backflow pipe; and the cultivation structure comprises a sliding frame arranged in the water cultivation box. According to the soilless culture device with the adjustable spacing, the contact area of water and air can be increased, so that the dissolved oxygen content of water is increased, oxygen deficit of root systems is prevented, normal growth of plants is guaranteed, rotting of the root systems due to oxygen deficit is prevented, ultraviolet sterilization can be conducted in the backflow process, and therefore germs, algae and the like in water can be killed; the plants are prevented from being infected, so that the normal growth of the plants is ensured and the plants are prevented from diseases.

Description

Technical Field

[0001] This disclosure relates to the field of soilless cultivation technology, and more particularly to a soilless cultivation device with adjustable spacing. Background Technology

[0002] Soilless cultivation devices are complete planting systems that do not rely on natural soil. They fix plants with artificial nutrient solutions or solid substrates and precisely supply water, fertilizer, and oxygen, combined with environmental control. They are widely used in facility agriculture and urban balcony planting. They can avoid soil-borne diseases, save water and fertilizer, and increase yield and planting density. Most existing soilless cultivation is hydroponics. In hydroponics, nutrient solution is poured into water and the water flow is controlled to achieve planting. However, because there are more nutrients in the water and hydroponics usually uses artificial lighting to improve plant growth efficiency, algae blooms often occur, which affect the normal growth of plants. In addition, it is inconvenient to adjust the planting spacing during planting, which affects the planting density and the economics of planting. Summary of the Invention

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the purpose of this disclosure is to provide a soilless cultivation device with adjustable spacing.

[0005] To achieve the above objectives, this disclosure provides an adjustable-spacing hydroponic cultivation device, comprising: a hydroponic box, wherein a circulation structure is installed on one side of the hydroponic box, the circulation structure including a return box and a return pipe, a filter chamber, a hydroponic chamber, and a return chamber are provided inside the hydroponic box, two partitions are fixed inside the hydroponic box, the return box is connected to the filter chamber, the return pipe is connected to the return box and the return chamber, and a sterilization structure is installed inside the return pipe; and a cultivation structure, wherein the cultivation structure includes a sliding frame installed inside the hydroponic box, multiple support rods are snapped and fixed inside the sliding frame, and a light-blocking structure is installed between two adjacent support rods. The planting structure includes a cultivation box with shading structures on both sides; an air intake structure including multiple third rotating shafts rotatably fitted to the lower side of a sliding frame, with third blades and rotating plates fixed on the third rotating shafts; a first rotating shaft rotatably fitted inside a reflux chamber, with multiple first blades fixed on the first rotating shaft; a connecting limiting structure including a squeezing block, with the rotating plate in contact with the squeezing block; and a positioning structure inside the hydroponic box, including a squeezing rod and a limiting rod, with the squeezing rod in contact with a support rod and the limiting rod in contact with the first blades.

[0006] Optionally, the circulation structure further includes: a water pump, which is fixed to the upper side of the hydroponic tank. The water pump has an inlet pipe fixed to its inlet end and an outlet pipe fixed to its outlet end. A first spray head is fixed to the end of the outlet pipe and is located on the upper side of the reflux tank. Two partitions are located between the filter chamber and the hydroponic chamber and between the reflux chamber and the hydroponic chamber, respectively. Multiple first filter holes are provided on the partitions. The bottom of the inlet pipe is located inside the filter chamber, which is equipped with a filter structure. Multiple second filter holes are provided at the bottom of the inlet pipe.

[0007] Optionally, the filtration structure includes: a filter screen, which is fixed to the bottom of the filtration chamber, and a coarse filter cotton is installed on the filter screen. The water inlet pipe is located above the coarse filter cotton, and the filter screen is located above the first filter hole. Water in the hydroponic tank enters the filtration chamber through the first filter hole. After being filtered by the filter screen and coarse filter cotton, the water is pumped out by a water pump and then sprayed out from the first spray head into the return tank.

[0008] Optionally, the sterilization structure includes: an ultraviolet lamp tube fixed inside the reflux tube, the ultraviolet lamp tube having a C-shaped structure, one end of the reflux tube being located on the upper side of the hydroponic box, and a second spray head fixed to the end of the reflux tube, the second spray head being located on the upper side of the reflux chamber; wherein, water in the reflux box enters the reflux tube under the action of gravity, is sterilized by the ultraviolet lamp tube, flows into the second spray head, and finally drips down into the reflux chamber through the second spray head.

[0009] Optionally, the cultivation structure further includes: a first support frame, which is snapped and fixed to the wall of the hydroponic box; multiple waterproof cylinders are fixed on the first support frame; the output end of the waterproof cylinders is fixedly connected to a sliding frame; multiple grooves are provided on the sliding frame; and a support rod is snapped and fixed in the grooves. The light-blocking structure includes an elastic light-blocking cloth, with locking blocks fixed at both ends; a slot is provided on the side of the support rod; the locking blocks are snapped and fixed in the slots; a second support frame is fixed on the cultivation box; the second support frame is snapped and fixed to the support rod; and multiple through holes are provided at the bottom and around the perimeter of the cultivation box.

[0010] Optionally, a connecting frame is fixed to the lower side of the sliding frame, the third rotating shaft is rotatably connected to the connecting frame, multiple air holes are opened on the side of the hydroponic box, multiple first sliding grooves are opened in the partition near the reflux chamber, one end of the third rotating shaft and the rotating plate are both located in the first sliding groove, the extrusion block has an elliptical structure, and the extrusion block is fixedly connected to the first rotating shaft.

[0011] Optionally, a plurality of elastic telescopic rods are fixed in the first sliding groove. The elastic telescopic rods include a first rod body and a second rod body. The first rod body is fixed in the first sliding groove and has a hollow structure. The first rod body and the second rod body are slidably connected. The top of the second rod body is in contact with the rotating plate. A first spring is fixed between the first rod body and the second rod body.

[0012] Optionally, a second rotating shaft is installed inside the hydroponic cavity. The second rotating shaft is rotatably connected to the hydroponic box. Multiple second blades are fixed around the circumference of the second rotating shaft. The second rotating shaft and the second blades are located on the lower side of the cultivation box.

[0013] Optionally, the extrusion rod is slidably fitted inside the sliding frame, and a second sliding groove is provided inside the sliding frame. The extrusion rod is located inside the second sliding groove, and multiple second springs are fixed between the extrusion rod and the groove wall of the second sliding groove. One end of the extrusion rod is in contact with the support rod, and the other end of the extrusion rod is in contact with the partition. The extrusion rod is an elastic telescopic rod.

[0014] Optionally, a third sliding groove is provided in the partition plate, and the limiting rod is slidably engaged in the third sliding groove. Multiple third springs are fixed between the limiting rod and the groove wall of the third sliding groove. A limiting block is fixed in the third sliding groove, and the limiting block is in contact with the limiting rod. When the sliding frame slides downward, the extrusion rod slides to one side of the third sliding groove, and the extrusion rod rebounds into the third sliding groove, contacts the limiting rod, and pushes the limiting rod to slide.

[0015] The technical solution provided in this disclosure may include the following beneficial effects: 1. A circulation structure is installed on one side of the hydroponic box. This circulation structure drives the water flow within the box. First, the flowing water is filtered through the filtration system to prevent rotten roots from clogging the system and affecting water quality. Furthermore, the water's return flow increases the surface area between water and air, thereby increasing dissolved oxygen levels and preventing root hypoxia. This ensures normal plant growth and prevents root rot caused by lack of oxygen. Additionally, ultraviolet sterilization occurs during the return flow, eliminating bacteria and algae in the water and preventing plant infection, thus ensuring normal plant growth and preventing disease.

[0016] 2. Install a sliding frame inside the hydroponic box, and fix the support rod inside the sliding frame. Install a shading structure and a planting structure between two adjacent support rods. Cultivate through the planting structure and shade the water through the shading structure to prevent the water from being exposed to too much light and causing algae blooms. This prevents algae from affecting the growth of the plants. In addition, shading can also control the water temperature to a certain extent and ensure the normal growth of the plants.

[0017] 3. Install a third rotating shaft on the lower side of the sliding frame, and install a third blade on the third rotating shaft. The rotation of the first rotating shaft drives the rotation of the third rotating shaft, thereby creating a fan-like action through the third blade. This allows the roots to directly contact the air, and the airflow ensures normal root growth. When the third rotating shaft is in a limited position, it can provide auxiliary support for the cultivation box, ensuring its stability. The distance between the cultivation box and the water surface can be adjusted by sliding it up and down, allowing for flexible adjustments based on the size of the plants. The distance between two cultivation boxes can also be adjusted. The rotation of the second rotating shaft stirs the water, making the nutrient solution more even, thus improving the flexibility of the device and enabling the cultivation of more plants, increasing planting density, and improving the economic efficiency of the device.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of an adjustable-spacing soilless cultivation device according to an embodiment of this disclosure; Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of an adjustable-spacing soilless cultivation device according to an embodiment of this disclosure. Figure 3 yes Figure 2 A schematic diagram at point A in the middle; Figure 4 This is a schematic diagram of the assembly structure of the hydroponic chamber in an adjustable-spacing soilless cultivation device according to an embodiment of this disclosure; Figure 5 This is a schematic diagram of the assembly structure of the filter chamber in an adjustable-spacing soilless cultivation device according to an embodiment of this disclosure; Figure 6 This is a schematic diagram of the assembly structure of the hydroponic box, sliding frame, and cultivation box in an adjustable spacing soilless cultivation device according to an embodiment of the present disclosure. Figure 7 This is a schematic diagram of the assembly cross-sectional structure of the partition in an adjustable-spacing soilless cultivation device according to an embodiment of the present disclosure. Figure 8 yes Figure 6 A schematic diagram at point B in the middle; Figure 9 This is a schematic diagram of the assembly structure of the reflux chamber in an adjustable-spacing soilless cultivation device according to an embodiment of the present disclosure; Figure 10This is a schematic diagram of the assembly structure of the hydroponic box and the return pipe in an adjustable spacing soilless cultivation device according to an embodiment of this disclosure. Figure 11 This is an exploded view of the sliding frame and cultivation box in an adjustable spacing hydroponic cultivation device according to an embodiment of the present disclosure. Figure 12 This is a schematic diagram of the three-dimensional assembly structure of the sliding frame in an adjustable-spacing soilless cultivation device according to an embodiment of this disclosure; As shown in the figure: 101, hydroponic box; 102, partition; 103, filter chamber; 104, hydroponic chamber; 105, first filter hole; 106, second filter hole; 107, filter screen; 108, coarse filter cotton; 109, water pump; 110, water inlet pipe; 111, water outlet pipe; 112, first spray head; 113, reflux box; 114, reflux pipe; 115, ultraviolet lamp; 116, second spray head; 117, reflux chamber; 201. First rotating shaft; 202. First blade; 203. Second rotating shaft; 204. Second blade; 301. Sliding frame; 302. Groove; 303. Support rod; 304. Elastic light-blocking cloth; 305. Cultivation box; 306. First support frame; 307. Second support frame; 308. Waterproof cylinder; 309. Through hole; 310. Connecting frame; 311. Air hole; 312. First sliding groove; 401. Third rotating shaft; 402. Third blade; 403. Rotating plate; 404. Elastic telescopic rod; 405. First rod body; 406. Second rod body; 407. First spring; 408. Compression block; 501. Extrusion rod; 502. Limiting rod; 503. Second sliding groove; 504. Second spring; 505. Third sliding groove; 506. Third spring; 507. Limiting block. Detailed Implementation

[0020] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] like Figure 1 and Figure 2As shown, this disclosure proposes an adjustable-spacing hydroponic cultivation device, comprising: a hydroponic box 101, wherein a circulation structure is installed on one side of the hydroponic box 101, the circulation structure including a return box 113 and a return pipe 114, a filter chamber 103, a hydroponic chamber 104 and a return chamber 117 are provided inside the hydroponic box 101, two partitions 102 are fixed inside the hydroponic box 101, the return box 113 is connected to the filter chamber 103, the return pipe 114 is connected to the return box 113 and the return chamber 117, and a sterilization structure is installed inside the return pipe 114; and a cultivation structure, wherein the cultivation structure includes a sliding frame 301 installed inside the hydroponic box 101, a plurality of support rods 303 are snapped and fixed inside the sliding frame 301, and a light-blocking structure and a planting element are installed between two adjacent support rods 303. The structure includes a cultivation box 305, with shading structures located on both sides of the cultivation box 305; an air intake structure, which includes multiple third rotating shafts 401 rotatably fitted to the lower side of a sliding frame 301, with third blades 402 and a rotating plate 403 fixed on the third rotating shafts 401; a first rotating shaft 201 rotatably fitted in a reflux chamber 117, with multiple first blades 202 fixed on the first rotating shaft 201; a connecting limiting structure is installed on the first rotating shaft 201, including a squeezing block 408; the rotating plate 403 contacts the squeezing block 408; and a positioning structure is installed inside the hydroponic box 101, including a squeezing rod 501 and a limiting rod 502; the squeezing rod 501 contacts the support rod 303, and the limiting rod 502 contacts the first blades 202.

[0022] Specifically, seedling cultivation is carried out using cultivation box 305. The cultivation box 305 can be directly fixed between two support rods 303. After the seeds grow, a certain number of cultivation boxes 305 can be removed as needed. Then, a light-blocking structure is installed between the two empty support rods 303 to block light, thereby preventing algae in the water from exploding due to excessive sunlight exposure and affecting plant growth. Furthermore, the circulation structure drives water circulation, which not only filters the water to a certain extent, but also allows the plants to better contact the nutrient solution, ensuring normal plant growth. It also increases the contact area between water and air, thereby increasing the dissolved oxygen content in the water and preventing root rot due to insufficient oxygen, thus ensuring the survival rate of the plants. In addition, the water flow can also drive the first rotating shaft 201 and the second rotating shaft 203 to rotate, which not only prolongs the contact time between the plants and air, but also has a certain stirring effect on the water flow, thereby ensuring the uniformity of the nutrient solution and improving the survival rate of the plants.

[0023] In this embodiment, the circulation structure further includes: a water pump 109, which is fixed to the upper side of the hydroponic tank 101. The water inlet end of the water pump 109 is fixed with a water inlet pipe 110, and the water outlet end of the water pump 109 is fixed with a water outlet pipe 111. The end of the water outlet pipe 111 is fixed with a first spray head 112, which is located on the upper side of the reflux tank 113. Two partitions 102 are respectively located between the filter chamber 103 and the hydroponic chamber 104 and between the reflux tank 117 and the hydroponic chamber 104. Multiple first filter holes 105 are opened on the partitions 102. The bottom of the water inlet pipe 110 is located inside the filter chamber 103. The filter chamber 103 is equipped with a filter structure, and multiple second filter holes 106 are opened at the bottom of the water inlet pipe 110.

[0024] Specifically, when circulation is required, the water pump 109 is started, and water is pumped out of the filter chamber 103 and sent into the first spray head 112. The water is then sprayed directly from the first spray head 112 into the return box 113. When the water is sprayed out from the first spray head 112, the water's trajectory is arc-shaped due to gravity, which increases the contact area between the water and the air, thereby increasing the dissolved oxygen in the water and improving the oxygen content. This prevents the plants from rotting due to low oxygen content in the water. The flowing water also prevents mosquitoes from breeding and ensures the cleanliness of the water. Furthermore, the partition 102 separates the filter chamber 103, the hydroponic chamber 104, and the return box 117, thus preventing the large impact of pumping and return from affecting the plant's root system and ensuring the normal growth of the plant.

[0025] The filtration structure includes: a filter screen 107, which is fixed to the bottom of the filter chamber 103. A coarse filter cotton 108 is installed on the filter screen 107. The water inlet pipe 110 is located on the upper side of the coarse filter cotton 108, and the filter screen 107 is located on the upper side of the first filter hole 105. Water in the hydroponic box 101 enters the filter chamber 103 through the first filter hole 105. After being filtered by the filter screen 107 and the coarse filter cotton 108, the water is drawn out by the water pump 109 and then sprayed out from the first spray head 112 into the return box 113.

[0026] Specifically, when pumping water, the water in the hydroponic chamber 104 enters the filter chamber 103 through the first filter hole 105, and then is filtered by the filter screen 107 and coarse filter cotton 108 before being pumped out by the water pump 109. The filter screen 107 and coarse filter cotton 108 can block some larger impurities, preventing them from clogging the water pump 109. Furthermore, the coarse filtration will not affect the nutrient solution in the water, thus achieving a good filtration effect. During filtration, some rotten plant roots can remain in the filter chamber 103, making it easier to centrally process larger impurities and prevent them from fermenting in the hydroponic chamber 104 and affecting plant growth.

[0027] Optionally, the sterilization structure includes: an ultraviolet lamp 115, which is fixed inside the reflux pipe 114. The ultraviolet lamp 115 has a C-shaped structure. One end of the reflux pipe 114 is located on the upper side of the hydroponic box 101, and a second spray head 116 is fixed to the end of the reflux pipe 114. The second spray head 116 is located on the upper side of the reflux cavity 117. Water in the reflux box 113 enters the reflux pipe 114 under the action of gravity, is sterilized by the ultraviolet lamp 115, flows into the second spray head 116, and finally drips down into the reflux cavity 117 through the second spray head 116.

[0028] Specifically, the water in the reflux box 113 flows into the reflux pipe 114, and the ultraviolet lamp 115 is powered on. The ultraviolet lamp 115 sterilizes and disinfects the water, which not only prevents algae blooms in the hydroponic box 101, but also prevents some pathogens from remaining in the water and causing plant diseases, thereby ensuring the survival rate of the plants and preventing algae from affecting the growth of the plants. Moreover, the circulated water can ensure that the pathogens in the water are eliminated more thoroughly, thus ensuring the economic benefits of planting.

[0029] The cultivation structure also includes: a first support frame 306, which is snapped and fixed to the wall of the hydroponic box 101. Multiple waterproof cylinders 308 are fixed on the first support frame 306, and the output ends of the waterproof cylinders 308 are fixedly connected to a sliding frame 301. Multiple grooves 302 are provided on the sliding frame 301, and support rods 303 are snapped and fixed within the grooves 302. The light-blocking structure includes an elastic light-blocking cloth 304, with locking blocks fixed at both ends. A slot is provided on the side of the support rod 303, and the locking blocks are snapped and fixed within the slot. A second support frame 307 is fixed on the cultivation box 305, and the second support frame 307 is snapped and fixed to the support rod 303. Multiple through holes 309 are provided on the bottom and sides of the cultivation box 305.

[0030] Specifically, the plant is placed in the cultivation box 305, the support rod 303 is secured in the groove 302, and the cultivation box 305 is fixed to the support rod 303 by the second support frame 307. Then, the sliding frame 301 is installed in the hydroponic chamber 104 through the first support frame 306. Activating the waterproof cylinder 308 causes the sliding frame 301 to slide up and down, thereby causing the cultivation box 305 to slide up and down, adjusting the distance between the cultivation box 305 and the water surface. Alternatively, the cultivation box 305 can be directly submerged in water, allowing for germination, seedling cultivation, and other processes within the cultivation box 305. The hydroponics process makes the device more flexible to use, expanding its applicability. As the plants grow, more cultivation boxes 305 can be disassembled and placed in other hydroponic boxes 101. By adjusting the installation position of the cultivation boxes 305, the spacing between plants can be adjusted to ensure normal plant growth, maximize space utilization, and improve the device's economy. Furthermore, the elastic light-blocking cloth 304 not only prevents water from being directly exposed to light, thus preventing algae blooms, but also provides some insulation for the water, ensuring normal plant growth and improving plant survival rate.

[0031] A connecting frame 310 is fixed to the lower side of the sliding frame 301. The third rotating shaft 401 is rotatably connected to the connecting frame 310. Multiple air holes 311 are opened on the side of the hydroponic box 101. Multiple first sliding grooves 312 are opened in the partition 102 near the reflux chamber 117. One end of the third rotating shaft 401 and the rotating plate 403 are both located in the first sliding grooves 312. The extrusion block 408 has an elliptical structure and is fixedly connected to the first rotating shaft 201.

[0032] Specifically, the third rotating shaft 401 is connected via the connecting frame 310. When the rotating plate 403 is squeezed, the rotating plate 403 drives the third rotating shaft 401 to rotate synchronously, thereby driving the third blade 402 to rotate. At this time, the third blade 402 can play a certain fan effect, accelerating the air flow in the hydroponic chamber 104. When the cultivation box 305 is in a high position, the plant roots at the lower level are in the water, and the plant roots at the upper level are in direct contact with the air. At this time, the fan can accelerate the air flow, ensuring that the plant roots can fully contact oxygen, thereby ensuring a better oxygen supply effect.

[0033] Multiple elastic telescopic rods 404 are fixed inside the first sliding groove 312. Each elastic telescopic rod 404 includes a first rod body 405 and a second rod body 406. The first rod body 405 is fixed inside the first sliding groove 312 and has a hollow structure. The first rod body 405 and the second rod body 406 are slidably connected. The top of the second rod body 406 is in contact with the rotating plate 403. A first spring 407 is fixed between the first rod body 405 and the second rod body 406.

[0034] Specifically, when the second spray head 116 sprays water, the water droplets inside the second spray head 116 fall onto the first blade 202, and the resulting impact drives the first rotating shaft 201 to rotate. At this time, the first rotating shaft 201 drives the squeezing block 408 to rotate synchronously, thereby squeezing the rotating plate 403. This causes the rotating plate 403 to drive the third rotating shaft 401 to rotate and generate airflow. When the rotating plate 403 is squeezed, it squeezes the elastic telescopic rod 404, causing the elastic telescopic rod 404 to rotate as the rotating plate 403 rotates up and down. When the telescopic rod 404 is pressed downward, the first spring 407 is compressed. When the first spring 407 rebounds, it will push the rotating plate 403 upward, thus ensuring that the rotating plate 403 can rotate up and down to fan the air, thereby ensuring the normal growth of the plants. When the first rotating shaft 201 is limited, the pressing block 408 is simultaneously limited, thereby limiting the third rotating shaft 401, which can help support the cultivation box 305, ensure the stability of the cultivation box 305, and prevent the cultivation box 305 from shaking and affecting the stability of the plants.

[0035] Optionally, a second rotating shaft 203 is installed inside the hydroponic cavity 104. The second rotating shaft 203 is rotatably connected to the hydroponic box 101. Multiple second blades 204 are fixed on the periphery of the second rotating shaft 203. The second rotating shaft 203 and the second blades 204 are located on the lower side of the cultivation box 305.

[0036] Specifically, when the water flows, the flowing water can push the second blade 204, thereby driving the second rotating shaft 203 to rotate. This allows the second blade 204 to stir the water above, ensuring the uniformity of the nutrient solution. The water above can also be filtered and sterilized, thus preventing the plant from getting sick. Furthermore, the flowing water can prevent the breeding of mosquitoes and ensure that the plant's roots can receive more oxygen, thereby improving the plant's survival rate.

[0037] The extrusion rod 501 is slidably fitted within the sliding frame 301. A second sliding groove 503 is provided within the sliding frame 301. The extrusion rod 501 is located within the second sliding groove 503. Multiple second springs 504 are fixed between the extrusion rod 501 and the groove wall of the second sliding groove 503. One end of the extrusion rod 501 contacts the support rod 303, and the other end is connected to the partition plate 102. The extrusion rod 501 is an elastic telescopic rod. A third sliding groove 505 is provided within the partition plate 102. A limiting rod 50... 2. The sliding frame 301 is slidably fitted in the third sliding groove 505. Multiple third springs 506 are fixed between the limiting rod 502 and the groove wall of the third sliding groove 505. A limiting block 507 is fixed in the third sliding groove 505 and the limiting block 507 is in contact with the limiting rod 502. When the sliding frame 301 slides downward, the pressing rod 501 slides to one side of the third sliding groove 505. The pressing rod 501 rebounds and enters the third sliding groove 505, contacts the limiting rod 502, and pushes the limiting rod 502 to slide.

[0038] Specifically, when the sliding frame 301 slides downward to a certain extent, the squeezing rod 501 slides to one side of the third sliding groove 505. The squeezing rod 501 rebounds and enters the third sliding groove 505, contacting the limiting rod 502 and pushing the limiting rod 502 to slide, so that the limiting rod 502 contacts the first leaf 202 for limiting, thereby ensuring the fixation of the first rotating shaft 201, which can provide auxiliary support for the cultivation box 305. At this time, the squeezing rod 501 inserted into the third sliding groove 505 can also play a certain supporting role. At this time, the plant roots and stems are completely immersed in water, so there is no need for external air supply. The returning water falls onto the first leaf 202, thereby slowing down the downward flow efficiency, increasing the dissolved oxygen in the water, thereby ensuring the normal survival of the plant and improving the survival rate of the plant.

[0039] Workflow: Place the plantlets into the cultivation box 305, secure the support rod 303 into the groove 302, and fix the cultivation box 305 to the support rod 303 via the second support frame 307. Then, install the sliding frame 301 into the hydroponic chamber 104 via the first support frame 306. Activate the waterproof cylinder 308, which will drive the sliding frame 301 to slide up and down, thereby causing the cultivation box 305 to slide up and down. Adjust the distance between the cultivation box 305 and the water surface, or directly submerge the cultivation box 305 in the water. This allows for germination, seedling cultivation, and hydroponics of the plants within the cultivation box 305. Once the plants have grown, multiple cultivation boxes 305 can be disassembled and placed into other hydroponic boxes 101. Adjust the cultivation box 305... Adjust the spacing between plants at installation position 5 to ensure normal plant growth. Start water pump 109 to pump water out of filter chamber 103 and send it into first spray head 112. From first spray head 112, the water is sprayed directly into return box 113. When water sprays from first spray head 112, its trajectory is arc-shaped due to gravity, increasing the contact area between water and air. During pumping, water in hydroponic chamber 104 enters filter chamber 103 through first filter hole 105, and then is filtered by filter screen 107 and coarse filter cotton 108 before being pumped out by water pump 109. Filter screen 107 and coarse filter cotton 108 can block larger impurities, preventing... Larger impurities prevent clogging of the water pump 109, and coarse filtration does not affect the nutrient solution in the water. Water in the return tank 113 flows into the return pipe 114, energizing the ultraviolet lamp 115. The ultraviolet lamp 115 sterilizes and disinfects the water, preventing algae blooms in the hydroponic box 101 and preventing pathogens from remaining in the water and causing plant diseases, thus ensuring plant survival. The third rotating shaft 401 is connected via the connecting frame 310. When the rotating plate 403 is squeezed, it drives the third rotating shaft 401 to rotate synchronously, thereby driving the third blade 402 to rotate. The third blade 402 then provides a certain fan effect, accelerating airflow within the hydroponic chamber 104. When the cultivation box 305 is positioned higher... At this point, the lower plant roots are submerged in water, while the upper plant roots are in direct contact with the air. When water is emitted from the second spray head 116, the water droplets fall onto the first blade 202, and the resulting impact drives the first rotating shaft 201 to rotate. The first rotating shaft 201 then drives the pressing block 408 to rotate synchronously, thus pressing the rotating plate 403. This causes the rotating plate 403 to drive the third rotating shaft 401 to rotate, creating a fan. When the rotating plate 403 is pressed, it presses the elastic telescopic rod 404, causing the elastic telescopic rod 404 to rotate up and down with the rotating plate 403. When the elastic telescopic rod 404 is pressed downwards, the first spring 407 is compressed. When the first spring 407 rebounds...At this point, the rotating plate 403 will be pushed upwards, ensuring that it can rotate up and down to provide ventilation. As the water flows, the flowing water pushes the second blade 204, which in turn drives the second rotating shaft 203 to rotate. This allows the second blade 204 to agitate the water above, ensuring the uniformity of the nutrient solution. The water above can also be filtered and sterilized, preventing plant disease. When the sliding frame 301 slides downwards to a certain extent, the squeezing rod 501 slides to one side of the third sliding groove 505 and springs back into the third sliding groove 505. The first leaf 202 contacts the limiting rod 502 and pushes it to slide, thus limiting the first rotating shaft 201 and providing auxiliary support for the cultivation box 305. The squeezing rod 501 inserted into the third sliding groove 505 also provides some support. At this time, the plant's roots are completely submerged in water, so external aeration is unnecessary. The returning water falls onto the first leaf 202, slowing down the downward flow and increasing the dissolved oxygen content in the water, thereby ensuring the plant's survival and improving its survival rate.

[0040] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0041] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A soilless cultivation device with adjustable spacing, characterized in that, include: A hydroponic box (101) is provided with a circulation structure on one side. The circulation structure includes a reflux box (113) and a reflux pipe (114). The hydroponic box (101) is provided with a filter chamber (103), a hydroponic chamber (104) and a reflux chamber (117). Two partitions (102) are fixed inside the hydroponic box (101). The reflux box (113) is connected to the filter chamber (103). The reflux pipe (114) is connected to the reflux box (113) and the reflux chamber (117). The reflux pipe (114) is provided with a sterilization structure. The cultivation structure includes a sliding frame (301) installed in a hydroponic box (101), and multiple support rods (303) are snapped and fixed inside the sliding frame (301). A light-shading structure and a planting structure are installed between two adjacent support rods (303). The planting structure includes a cultivation box (305), and the light-shading structure is located on both sides of the cultivation box (305). The air intake structure includes multiple third rotating shafts (401) rotatably fitted to the lower side of the sliding frame (301). A third blade (402) and a rotating plate (403) are fixed on the third rotating shaft (401). A first rotating shaft (201) is rotatably fitted in the reflux chamber (117). Multiple first blades (202) are fixed on the first rotating shaft (201). A connecting limiting structure is installed on the first rotating shaft (201). The connecting limiting structure includes a squeezing block (408). The rotating plate (403) is in contact with the squeezing block (408). A positioning structure is installed in the hydroponic box (101). The positioning structure includes a squeezing rod (501) and a limiting rod (502). The squeezing rod (501) is in contact with the support rod (303). The limiting rod (502) is in contact with the first blade (202).

2. The soilless cultivation device with adjustable spacing according to claim 1, characterized in that, The loop structure also includes: A water pump (109) is fixed on the upper side of the hydroponic box (101). The water inlet end of the water pump (109) is fixed with a water inlet pipe (110), and the water outlet end of the water pump (109) is fixed with a water outlet pipe (111). The end of the water outlet pipe (111) is fixed with a first spray head (112), and the first spray head (112) is located on the upper side of the return box (113). Two partitions (102) are located between the filter chamber (103) and the hydroponic chamber (104) and the reflux chamber (117) and the hydroponic chamber (104), respectively. Multiple first filter holes (105) are provided on the partitions (102). The bottom of the water inlet pipe (110) is located inside the filter chamber (103). The filter chamber (103) is equipped with a filter structure. Multiple second filter holes (106) are provided at the bottom of the water inlet pipe (110).

3. The soilless cultivation device with adjustable spacing according to claim 2, characterized in that, The filtering structure includes: The filter screen (107) is fixed at the bottom of the filter chamber (103). The filter screen (107) is equipped with coarse filter cotton (108). The water inlet pipe (110) is located on the upper side of the coarse filter cotton (108). The filter screen (107) is located on the upper side of the first filter hole (105). In the hydroponic box (101), the water enters the filter chamber (103) through the first filter hole (105). After being filtered by the filter screen (107) and coarse filter cotton (108), the water is pumped out by the water pump (109) and then sprayed out from the first spray head (112) into the return box (113).

4. The soilless cultivation device with adjustable spacing according to claim 1, characterized in that, The bactericidal structure includes: The ultraviolet lamp (115) is fixed inside the reflux tube (114). The ultraviolet lamp (115) has a C-shaped structure. One end of the reflux tube (114) is located on the upper side of the hydroponic box (101). A second water spray head (116) is fixed at the end of the reflux tube (114). The second water spray head (116) is located on the upper side of the reflux chamber (117). The water in the reflux box (113) enters the reflux pipe (114) under the action of gravity, and after being sterilized by the ultraviolet lamp (115), it flows into the second spray head (116) and finally drips down into the reflux chamber (117) through the second spray head (116).

5. The soilless cultivation device with adjustable spacing according to claim 1, characterized in that, The cultivation structure also includes: The first support frame (306) is snapped and fixed to the wall of the hydroponic box (101). Multiple waterproof cylinders (308) are fixed on the first support frame (306). The output end of the waterproof cylinder (308) is fixedly connected to the sliding frame (301). Multiple grooves (302) are opened on the sliding frame (301). The support rod (303) is snapped and fixed in the groove (302). The light-shielding structure includes an elastic light-shielding cloth (304), with locking blocks fixed at both ends of the elastic light-shielding cloth (304). The side of the support rod (303) is provided with a slot, and the locking blocks are locked in the slot. A second support frame (307) is fixed on the cultivation box (305), and the second support frame (307) is locked in the support rod (303). Multiple through holes (309) are provided at the bottom and around the cultivation box (305).

6. The soilless cultivation device with adjustable spacing according to claim 1, characterized in that, include: A connecting frame (310) is fixed to the lower side of the sliding frame (301). The third rotating shaft (401) is rotatably connected to the connecting frame (310). Multiple air holes (311) are opened on the side of the hydroponic box (101). Multiple first sliding grooves (312) are opened in the partition (102) near the reflux chamber (117). One end of the third rotating shaft (401) and the rotating plate (403) are both located in the first sliding groove (312). The extrusion block (408) has an elliptical structure and is fixedly connected to the first rotating shaft (201).

7. The soilless cultivation device with adjustable spacing according to claim 6, characterized in that, include: Multiple elastic telescopic rods (404) are fixed in the first sliding groove (312). Each elastic telescopic rod (404) includes a first rod body (405) and a second rod body (406). The first rod body (405) is fixed in the first sliding groove (312). The first rod body (405) is a hollow structure. The first rod body (405) is slidably connected to the second rod body (406). The top of the second rod body (406) is in contact with the rotating plate (403). A first spring (407) is fixed between the first rod body (405) and the second rod body (406).

8. The soilless cultivation device with adjustable spacing according to claim 1, characterized in that, include: The hydroponic cavity (104) is equipped with a second rotating shaft (203), which is rotatably connected to the hydroponic box (101). Multiple second blades (204) are fixed on the periphery of the second rotating shaft (203), and the second rotating shaft (203) and the second blades (204) are located on the lower side of the cultivation box (305).

9. The soilless cultivation device with adjustable spacing according to claim 1, characterized in that, include: The extrusion rod (501) is slidably fitted inside the sliding frame (301). A second sliding groove (503) is provided inside the sliding frame (301). The extrusion rod (501) is located inside the second sliding groove (503). Multiple second springs (504) are fixed between the extrusion rod (501) and the groove wall of the second sliding groove (503). One end of the extrusion rod (501) is in contact with the support rod (303), and the other end of the extrusion rod (501) is in contact with the partition plate (102). The extrusion rod (501) is an elastic telescopic rod.

10. The soilless cultivation device with adjustable spacing according to claim 9, characterized in that, include: The partition (102) is provided with a third sliding groove (505), the limiting rod (502) is slidably engaged in the third sliding groove (505), a plurality of third springs (506) are fixed between the limiting rod (502) and the groove wall of the third sliding groove (505), and a limiting block (507) is fixed in the third sliding groove (505), the limiting block (507) is in contact with the limiting rod (502); When the sliding frame (301) slides downward, the extrusion rod (501) slides to one side of the third sliding groove (505), and the extrusion rod (501) rebounds into the third sliding groove (505) and contacts the limiting rod (502) and pushes the limiting rod (502) to slide.

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