Soilless cultivation device for sweet corn seed cultivation and use method thereof

Abstract

The present invention relates to the technical field of corn cultivation equipment, and specifically discloses a soilless cultivation device for cultivating sweet corn seeds and a method for using the device, comprising a placement ring, the top of which is fixedly connected to an incubator, and further comprising: a rotating mechanism, the rotating mechanism being rotatably mounted inside the incubator; and a protective mechanism, the protective mechanism being fixedly mounted on the rotating mechanism. As the corn seedlings grow stalks, the motor can be started to work intermittently and reciprocally, and the top cover is driven to rotate by a driving rod connected to the output end of the motor, so that the corn plants receive uniform sunlight exposure, ensuring the development of each corn plant. When the top cover rotates, the inner meshing ring on the outer surface of the incubator box and the outer meshing ring on the top of the incubator box are misaligned with each other, that is, as the top cover rotates, the incubator box is also prompted to rotate, thereby further improving the uniformity of sunlight exposure to the corn plants, significantly reducing blind spots in illumination, and thus ensuring the development effect of the corn plants.

Description

Technical Field

[0001] The present invention relates to the technical field of corn cultivation equipment, in particular to a soilless cultivation device for cultivating sweet corn seeds and a use method thereof. Background Art

[0002] In the agricultural planting sector, the soilless cultivation device for sweet corn seeds simulates a natural growth environment and uses a nutrient solution to provide the nutrients necessary for sweet corn seed growth. This device is crucial for efficient, high-quality sweet corn cultivation. By optimizing lighting and nutrient supply, it aims to increase seed germination rates and promote healthy corn plant growth. Widely used in research institutions and agricultural planting bases, it plays a significant role in promoting the development of sweet corn cultivation technology and increasing agricultural yield and quality.

[0003] However, traditional sweet corn soilless cultivation devices have significant shortcomings. In terms of light uniformity, traditional equipment mostly uses static lighting settings, which cannot ensure that each corn plant can fully receive sunlight. Light dead spots often appear, resulting in uneven growth and development of corn, affecting overall yield and quality. The nutrient solution management is poor, lacking an effective stirring and circulation mechanism. The nutrient solution is prone to sedimentation and stratification, and the nutrients are unevenly distributed, which reduces the efficiency of corn in nutrient absorption and increases fertilizer costs. In terms of plant stability, traditional devices lack effective fixation measures for growing corn plants. As the corn seedlings grow, the stalks are easily overturned by wind or shaking of the device, affecting the cultivation effect. In addition, traditional equipment has a low degree of automation, making it difficult to accurately adjust parameters such as light and nutrition according to the growth stage of corn. It relies on frequent manual intervention, which not only increases labor intensity, but also easily affects the cultivation quality due to untimely or inaccurate operation. It is difficult to meet the needs of large-scale and refined planting in modern agriculture. Summary of the Invention

[0004] (1) Technical problems solved

[0005] The present invention provides a soilless cultivation device for cultivating sweet corn seeds and a method for using the same, which solves the problems mentioned in the above background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a soilless cultivation device for cultivating sweet corn seeds, comprising a placement ring, the top of which is fixedly connected to an incubator, and also comprising: a rotating mechanism, the rotating mechanism being rotatably mounted inside the incubator; a protective mechanism, the protective mechanism being fixedly mounted on the rotating mechanism; wherein the rotating mechanism comprises a top cover, the top cover being rotatably connected to the top of the incubator, the upper surface of the top cover being penetrated by a incubator box being rotatably connected, wherein six incubator boxes are arranged at fixed intervals around the central axis of the top cover.

[0008] According to one embodiment of the present invention, a driving rod is fixedly connected to the middle bottom surface of the top cover, the bottom of the driving rod passes through and is rotatably connected to the lower surface of the incubator, the bottom of the driving rod is rotatably connected to a motor, and the motor is fixedly installed on the middle bottom surface of the incubator.

[0009] According to one embodiment of the present invention, the outer surface of the culture box is fixedly connected to an inner meshing ring, the top inner surface of the incubator is fixedly connected to an outer meshing ring, the inner meshing ring and the outer meshing ring are meshed with each other, the inner surface of the incubator is provided with a slide groove, the inner surface of the incubator is connected to a lower movable plate by sliding up and down through the slide groove, and the upper surface of the lower movable plate is penetrated by a lower leakage hole.

[0010] According to one embodiment of the present invention, the driving rod is configured as a threaded rod, the middle part of the lower movable disk is threadedly connected to the outer surface of the driving rod, and limiting grooves are symmetrically provided on the outer surfaces of both sides of the driving rod. The limiting grooves are fixedly connected to the limiting rods, and the upper movable disk is elastically and slidably connected to the limiting rods, and an upper leakage hole is provided through the upper surface of the upper movable disk.

[0011] According to one embodiment of the present invention, the outer side of the upper movable plate is attached to the inner surface of the incubator, wherein the upper movable plate is initially arranged directly above the lower movable plate, and a gap is initially provided between the upper movable plate and the lower movable plate, and a strong magnetic ring is fixedly embedded on the upper surface of the lower movable plate.

[0012] According to one embodiment of the present invention, the protective mechanism includes a pressure ring, which is fixedly connected to the upper surface of the upper movable plate, wherein the bottom surface of the pressure ring and the bottom surface of the upper movable plate are set to the same horizontal plane, the interior of the pressure ring is set to be hollow, the bottom of the pressure ring is slidably connected with a counterweight block, the upper surface of the pressure ring is rotatably connected with a rotating ring, the upper surface of the rotating ring is fixedly connected with a telescopic rod, and the top of the telescopic rod is fixedly connected to the upper surface of the top cover.

[0013] According to one embodiment of the present invention, a mounting ring is fixedly connected to the top of the culture box, the mounting ring is attached to the upper surface of the top cover, the interior of the mounting ring is configured to be hollow, the inner side of the mounting ring is configured to be open, and the inner surface of the mounting ring is fixedly connected to an expansion bag, the expansion bag is configured to be annular, wherein the expansion bag is connected to the internal cavity of the telescopic rod.

[0014] According to one embodiment of the present invention, a No. 1 plug-in plate is provided inside the mounting ring, and guide blocks are symmetrically fixedly connected to the upper and lower surfaces of the No. 1 plug-in plate, wherein the No. 1 plug-in plate is slidably connected to the upper and lower surfaces inside the mounting ring through the guide blocks, and the No. 1 plug-in plate is arranged in an arc shape, and three No. 1 plug-in plates are arranged at fixed intervals around the central axis of the mounting ring, and the No. 1 plug-in plate is elastically slidably plugged in with the No. 2 plug-in plate at both ends, and the No. 1 plug-in plate and the No. 2 plug-in plate are combined into a ring shape, and an interlocking groove is provided on the surface of the No. 1 plug-in plate away from the expansion bag, and a plug-in frame is elastically slidably connected in the interlocking groove, and a columnar bag is fixedly inlaid on the surface of the plug-in frame away from the No. 1 plug-in plate.

[0015] The present invention provides a method for using a soilless cultivation device for cultivating sweet corn seeds, comprising the following steps:

[0016] S1. Introduce nutrient solution into the incubator through the top of the incubation box in advance. After the nutrient solution is introduced, sweet corn seeds are placed into the incubation box;

[0017] S2. After the seeds have germinated, the device and the corn seedlings are moved outdoors to receive sunlight;

[0018] S3. When the seeds grow out of stalks, the motor is started to run back and forth, which causes the top cover to rotate, driving the culture box on the top cover to rotate together. The culture box will also rotate while the top cover rotates, so that the corn plants can receive sufficient sunlight.

[0019] First, introduce the nutrient solution required for cultivation into the incubator through the top of the incubator, then put corn seeds into the incubator, and place the device indoors to wait for the seeds to germinate. When the seeds germinate, the device can be moved outdoors to receive sunlight.

[0020] (3) Beneficial effects

[0021] The present invention provides a soilless cultivation device for sweet corn seed cultivation and a method for using the device. The device has the following beneficial effects:

[0022] (1) The present soilless cultivation device for cultivating sweet corn seeds and its use method are as follows: as the corn seedlings grow stalks, the motor can be started to work intermittently and reciprocally, and the top cover is driven to rotate by a driving rod connected to the output end of the motor, so that the corn plants receive uniform sunlight exposure, ensuring the development of each corn plant. When the top cover rotates, the inner meshing ring on the outer surface of the culture box and the outer meshing ring on the top of the culture box are misaligned with each other, that is, as the top cover rotates, the culture box is also prompted to rotate, thereby further improving the uniformity of sunlight exposure to the corn plants, greatly reducing blind angles of exposure, and thus ensuring the development effect of the corn plants.

[0023] (2) The soilless cultivation device for cultivating sweet corn seeds and its use method, when the driving rod rotates, the lower movable plate is limited by the slide groove, that is, the rotation of the driving rod will drive the lower movable plate to move upward along the inner wall of the incubator through the thread, that is, the nutrient solution inside the incubator is pushed upward by the movement of the lower movable plate, and leaks to the bottom of the incubator through the lower leakage hole, thereby achieving the purpose of stirring the nutrient solution in the incubator while maintaining uniform sunlight exposure to the corn plants, thereby ensuring that the nutrient solution always remains in a uniform state, avoiding the problem of sedimentation and reduced nutritional effect of the nutrient solution due to long-term static state, and when the lower movable plate moves upward, Gradually contacting the lower surface of the upper movable plate, finally the lower movable plate and the upper movable plate move up synchronously, and relative rotation occurs between the lower movable plate and the upper movable plate during movement, so that the upper leakage hole and the lower leakage hole are intermittently aligned. When the upper leakage hole and the lower leakage hole are misaligned, the lower movable plate is always in an upward state, thereby making the internal cavity of the incubator below the lower movable plate in a negative pressure state, so that when the upper leakage hole and the lower leakage hole are aligned, the nutrient solution above the upper movable plate is quickly sucked to the bottom through the negative pressure, thereby greatly improving the flow effect of the nutrient solution, and further improving the uniformity of the nutrient solution, ensuring the corn plants' absorption of the nutrient solution.

[0024] (3) The soilless cultivation device for cultivating sweet corn seeds and its use method are as follows: when the lower movable plate moves upward, the strong magnetic ring on its upper surface will gradually approach the upper movable plate, and finally be firmly adsorbed on the lower surface of the upper movable plate, so that the lower movable plate moves downward together with the upper movable plate when the motor is reversed, and the upper movable plate and the lower movable plate are kept in a fitted state, that is, when the lower movable plate moves downward, the bottom of the incubator will be squeezed into a high-pressure state, and the nutrient solution at the bottom of the incubator will be squeezed to the top of the upper movable plate through the gap between the upper leakage hole and the lower leakage hole, so that the nutrient solution inside the incubator is in a strong flow state regardless of whether the motor rotates forward or reverse, further improving the uniformity of the nutrient solution; when the lower movable plate moves upward, it will first squeeze the counterweight block, thereby prompting the counterweight block to move into the inside of the pressure ring, and at this time the upper movable plate does not move due to the elastic force, and the distance between the lower movable plate and the upper movable plate is reduced. When the specified distance is reached, the upper movable plate and the lower movable plate are attracted together and moved upward synchronously through the action of the strong magnetic ring, and when the counterweight moves into the pressure ring, it squeezes the internal cavity of the pressure ring, and then squeezes the internal air pressure into the telescopic rod, and as the upper movable plate moves upward, the telescopic rod contracts, and then the internal air pressure is transmitted to the expansion bag in the mounting ring, causing the expansion bag to begin to expand, and then push the No. 1 plug-in board and the No. 2 plug-in board to begin to contract, so that the top of the culture box begins to close, and the No. 1 plug-in board and the No. 2 plug-in board are used to cover and clamp the stalks of the corn plants to improve the stability of the corn plants and avoid the corn plants from tipping over during rotation and affecting the cultivation effect. When the No. 1 plug-in board and the No. 2 plug-in board contract, the columnar bag on the plug-in rack inside the No. 1 plug-in board will come into contact with the stalks of the corn plants, thereby forming an elastic support effect during the clamping process to avoid damage to the corn plants due to excessive clamping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0026] Figure 2 Schematic diagram of the internal structure of the incubator of the present invention;

[0027] Figure 3 Schematic diagram of the outer meshing ring and its connection structure of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the upper movable plate and the lower movable plate of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the pressure ring of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the culture box of the present invention;

[0031] Figure 7 It is a schematic diagram of the internal structure of the mounting ring of the present invention;

[0032] Figure 8 It is a schematic diagram of the plug-in rack and its connection structure of the present invention.

[0033] In the figure: 1. Placement ring; 2. Incubator; 3. Rotating mechanism; 31. Top cover; 32. Incubator; 33. Driving rod; 34. Motor; 35. Inner meshing ring; 36. Outer meshing ring; 37. Slide groove; 38. Lower moving plate; 39. Lower leakage hole; 310. Limiting groove; 311. Limiting rod; 312. Upper moving plate; 313. Upper leakage hole; 314. Strong magnetic ring; 4. Protection mechanism; 41. Pressure ring; 42. Counterweight; 43. Rotating ring; 44. Telescopic rod; 45. Mounting ring; 46. Expansion bladder; 47. No. 1 plug-in board; 48. Guide block; 49. No. 2 plug-in board; 410. Engaging groove; 411. Plug-in rack; 412. Columnar bladder. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a soilless cultivation device for cultivating sweet corn seeds, comprising a placement ring 1, a culture box 2 fixedly connected to the top of the placement ring 1, and further comprising:

[0036] The rotating mechanism 3 is rotatably mounted inside the incubator 2;

[0037] The protection mechanism 4 is fixedly mounted on the rotating mechanism 3;

[0038] The rotating mechanism 3 includes a top cover 31 rotatably connected to the top of the incubator 2 . A culture box 32 is rotatably connected to the upper surface of the top cover 31 . Six culture boxes 32 are arranged at fixed intervals around the central axis of the top cover 31 .

[0039] A driving rod 33 is fixedly connected to the middle bottom surface of the top cover 31 , and the bottom of the driving rod 33 is rotatably connected to the lower surface of the incubator 2 . The bottom of the driving rod 33 is rotatably connected to a motor 34 , which is fixedly installed on the middle bottom surface of the incubator 2 .

[0040] An inner meshing ring 35 is fixedly connected to the outer surface of the culture box 32, and an outer meshing ring 36 is fixedly connected to the inner surface of the top of the incubator 2. The inner meshing ring 35 and the outer meshing ring 36 are meshed with each other. A slide groove 37 is provided on the inner surface of the incubator 2. The inner surface of the incubator 2 is connected to a lower movable plate 38 through the slide groove 37 for sliding up and down. A lower leakage hole 39 is provided on the upper surface of the lower movable plate 38.

[0041] The driving rod 33 is configured as a threaded rod, and the middle part of the lower movable disk 38 is threadedly connected to the outer surface of the driving rod 33. The outer surfaces of both sides of the driving rod 33 are symmetrically provided with limiting grooves 310, and the limiting grooves 310 are fixedly connected with limiting rods 311. The limiting rods 311 are elastically and slidably connected to the upper movable disk 312, and the upper surface of the upper movable disk 312 is penetrated by an upper leakage hole 313.

[0042] The outer side of the upper movable plate 312 is attached to the inner surface of the incubator 2 , wherein the upper movable plate 312 is initially arranged directly above the lower movable plate 38 , and initially a gap is provided between the upper movable plate 312 and the lower movable plate 38 , and a strong magnetic ring 314 is fixedly embedded on the upper surface of the lower movable plate 38 .

[0043] Second embodiment: Figures 1 to 8 As shown, the protective mechanism 4 includes a pressure ring 41, which is fixedly connected to the upper surface of the upper movable plate 312, wherein the bottom surface of the pressure ring 41 and the bottom surface of the upper movable plate 312 are set to the same horizontal plane, and the interior of the pressure ring 41 is set to be hollow, and the bottom of the pressure ring 41 is slidably connected with a counterweight block 42, and the upper surface of the pressure ring 41 is rotatably connected with a rotating ring 43, and the upper surface of the rotating ring 43 is fixedly connected with a telescopic rod 44, and the top of the telescopic rod 44 is fixed to the upper surface of the top cover 31.

[0044] A mounting ring 45 is fixedly connected to the top of the culture box 32, and the mounting ring 45 is attached to the upper surface of the top cover 31. The interior of the mounting ring 45 is set to be hollow, and the inner side of the mounting ring 45 is set to be open. An expansion bag 46 is fixedly connected to the inner surface of the mounting ring 45, and the expansion bag 46 is set to be annular, wherein the expansion bag 46 is connected to the internal cavity of the telescopic rod 44.

[0045] A No. 1 plug-in plate 47 is provided inside the mounting ring 45, and guide blocks 48 are symmetrically fixedly connected to the upper and lower surfaces of the No. 1 plug-in plate 47, wherein the No. 1 plug-in plate 47 is slidably connected to the upper and lower surfaces of the inner part of the mounting ring 45 through the guide blocks 48. The No. 1 plug-in plate 47 is arranged in an arc shape, and three No. 1 plug-in plates 47 are arranged at fixed intervals around the central axis of the mounting ring 45. The two ends of the No. 1 plug-in plate 47 are elastically slidably plugged with the No. 2 plug-in plate 49, and the No. 1 plug-in plate 47 and the No. 2 plug-in plate 49 are combined into a ring shape. An engaging groove 410 is provided on the surface of the No. 1 plug-in plate 47 away from the expansion bag 46, and a plug-in frame 411 is elastically slidably connected in the engaging groove 410, and a columnar bag 412 is fixedly inlaid on the surface of the plug-in frame 411 away from the No. 1 plug-in plate 47.

[0046] A method for using a soilless cultivation device for cultivating sweet corn seeds comprises the following steps:

[0047] S1, the nutrient solution is introduced into the incubator 2 in advance through the top of the culture box 32, and after the nutrient solution is introduced, sweet corn seeds are placed into the culture box 32;

[0048] S2. After the seeds have germinated, the device and the corn seedlings are moved outdoors to receive sunlight;

[0049] S3. When the seeds grow out of stalks, the motor 34 is started to reciprocate, and the motor 34 causes the top cover 31 to rotate, driving the culture box 32 on the top cover 31 to rotate together. The culture box 32 also rotates while rotating with the top cover 31, so that the corn plants receive sufficient sunlight.

[0050] During operation, the nutrient solution required for cultivation is first introduced into the incubator 2 through the top of the culture box 32, and then corn seeds are placed in the culture box 32, and the device is placed indoors to wait for the seeds to germinate. When the seeds germinate, the device can be moved outdoors to be exposed to sunlight. As the corn seedlings grow stalks, the motor 34 can be started to work intermittently. The driving rod 33 connected to the output end of the motor 34 drives the top cover 31 to rotate, so that the corn plants receive uniform sunlight exposure, ensuring the development of each corn plant. When the top cover 31 rotates, the inner meshing ring 35 on the outer surface of the culture box 32 and the outer meshing ring 36 on the top of the incubator 2 will be misaligned with each other, that is, as the top cover 31 rotates, the culture box 32 will also be prompted to rotate, thereby further improving the quality of the corn. The rice plants are evenly exposed to sunlight, which greatly reduces the blind angle of exposure, thereby ensuring the development effect of the corn plants. When the driving rod 33 rotates, the lower movable plate 38 is limited by the slide groove 37, that is, the rotation of the driving rod 33 will drive the lower movable plate 38 to move up along the inner wall of the incubator 2 through the thread, that is, the nutrient solution inside the incubator 2 is pushed upward by the movement of the lower movable plate 38, and leaks to the bottom of the incubator 2 through the lower leakage hole 39, thereby achieving the goal of stirring the nutrient solution in the incubator 2 while maintaining uniform sunlight exposure to the corn plants during rotation, thereby ensuring that the nutrient solution always remains in a uniform state, avoiding the problem of sedimentation and reduced nutritional effect of the nutrient solution due to long-term standing, and when the lower movable plate 38 moves upward, it will gradually contact the upper movable plate 3 12, and finally the lower movable plate 38 and the upper movable plate 312 move upward synchronously, and relative rotation occurs between the lower movable plate 38 and the upper movable plate 312 during movement, so that the upper leakage hole 313 and the lower leakage hole 39 are intermittently aligned. When the upper leakage hole 313 and the lower leakage hole 39 are misaligned, the lower movable plate 38 is always in an upward state, thereby making the internal cavity of the incubator 2 below the lower movable plate 38 in a negative pressure state, so that when the upper leakage hole 313 and the lower leakage hole 39 are aligned, the nutrient solution above the upper movable plate 312 is quickly sucked to the bottom through the negative pressure, thereby greatly improving the flow effect of the nutrient solution, and further improving the uniform effect of the nutrient solution, ensuring the corn plants' absorption effect of the nutrient solution, and when the lower movable plate 38 moves upward The strong magnetic ring 314 on its upper surface will gradually approach the upper movable plate 312 and finally be firmly adsorbed on the lower surface of the upper movable plate 312, that is, the lower movable plate 38 will move downward together with the upper movable plate 312 when the motor 34 is reversed, so that the upper movable plate 312 and the lower movable plate 38 are kept in a fitted state. That is, when the lower movable plate 38 moves downward, the bottom of the incubator 2 will be squeezed into a high-pressure state, and the nutrient solution at the bottom of the incubator 2 will be squeezed to the top of the upper movable plate 312 through the gap between the upper leakage hole 313 and the lower leakage hole 39. Therefore, no matter whether the motor 34 rotates forward or reversely, the nutrient solution inside the incubator 2 is in a strong flow state, further improving the uniformity of the nutrient solution. When the lower movable plate 38 moves upward, it will first squeeze the counterweight 42,As a result, the counterweight 42 is forced to move into the pressure ring 41. At this time, the upper movable plate 312 does not move due to the elastic force. When the distance between the lower movable plate 38 and the upper movable plate 312 is reduced to a specified distance, the upper movable plate 312 and the lower movable plate 38 are attracted together by the strong magnetic ring 314 and move upward synchronously. When the counterweight 42 moves into the pressure ring 41, it squeezes the internal cavity of the pressure ring 41, and then squeezes the internal air pressure into the telescopic rod 44. As the upper movable plate 312 moves upward, the telescopic rod 44 contracts, and then the internal air pressure is transmitted to the expansion bag 46 in the mounting ring 45. During rotation, the expansion bladder 46 begins to expand, pushing the No. 1 plug-in board 47 and the No. 2 plug-in board 49 to begin to contract, causing the top of the culture box 32 to begin to close. The No. 1 plug-in board 47 and the No. 2 plug-in board 49 wrap and clamp the corn stalks to improve the stability of the corn stalks and prevent the corn stalks from tipping over during the rotation process and affecting the cultivation effect. When the No. 1 plug-in board 47 and the No. 2 plug-in board 49 contract, the columnar bladder 412 on the plug-in frame 411 inside the No. 1 plug-in board 47 contacts the corn stalks, thereby forming an elastic support effect during the clamping process and preventing excessive clamping force from damaging the corn stalks.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A soilless cultivation device for cultivating sweet corn seeds, comprising a placement ring (1), characterized in that: The top of the placement ring (1) is fixedly connected to an incubator (2), and further comprises: A rotating mechanism (3), the rotating mechanism (3) being rotatably mounted inside the incubator (2); A protective mechanism (4), wherein the protective mechanism (4) is fixedly mounted on the rotating mechanism (3); The rotating mechanism (3) includes a top cover (31), the top cover (31) is rotatably connected to the top of the incubator (2), and a culture box (32) is rotatably connected to the upper surface of the top cover (31), wherein six culture boxes (32) are arranged at fixed intervals around the central axis of the top cover (31); The middle bottom surface of the top cover (31) is fixedly connected to a driving rod (33), and the driving rod (33) is set as a threaded rod. The middle part of the lower movable plate (38) is threadedly connected to the outer surface of the driving rod (33). The bottom of the driving rod (33) is rotatably connected to a motor (34). The outer surface of the culture box (32) is fixedly connected to an inner meshing ring (35). The top inner surface of the incubator (2) is fixedly connected to an outer meshing ring (36). The inner surface of the incubator (2) is provided with a slide groove (37). The inner surface of the incubator (2) is connected to the lower movable plate (38) by sliding up and down through the slide groove (37). The outer side of the upper movable plate (312) is attached to the inner surface of the incubator (2). The upper movable plate (312) is initially arranged directly above the lower movable plate (38), and a gap is initially provided between the upper movable plate (312) and the lower movable plate (38), the upper surface of the lower movable plate (38) is penetrated by a lower leakage hole (39), the outer surfaces of both sides of the driving rod (33) are symmetrically provided with limiting grooves (310), the limiting rods (311) are fixedly connected in the limiting grooves (310), the upper limiting rods (311) are elastically slidably connected to the upper movable plate (312), the upper surface of the upper movable plate (312) is penetrated by an upper leakage hole (313), and the upper surface of the lower movable plate (38) is fixedly inlaid with a strong magnetic ring (314).

2. The soilless cultivation device for sweet corn seed cultivation according to claim 1, characterized in that: The bottom of the driving rod (33) is rotatably connected to the lower surface of the incubator (2), and the motor (34) is fixedly mounted on the middle bottom surface of the incubator (2).

3. The soilless cultivation device for sweet corn seed cultivation according to claim 2, characterized in that: The inner meshing ring (35) and the outer meshing ring (36) mesh with each other.

4. The soilless cultivation device for sweet corn seed cultivation according to claim 3, characterized in that: The protective mechanism (4) includes a pressure ring (41), the pressure ring (41) is fixedly connected to the upper surface of the upper movable plate (312), wherein the bottom surface of the pressure ring (41) and the bottom surface of the upper movable plate (312) are set to the same horizontal plane, the interior of the pressure ring (41) is set to be hollow, the bottom of the pressure ring (41) is slidably connected to a counterweight block (42), the upper surface of the pressure ring (41) is rotatably connected to a rotating ring (43), the upper surface of the rotating ring (43) is fixedly connected to a telescopic rod (44), and the top of the telescopic rod (44) is fixed to the upper surface of the top cover (31).

5. The soilless cultivation device for cultivating sweet corn seeds according to claim 4, characterized in that: The top of the culture box (32) is fixedly connected to a mounting ring (45), the mounting ring (45) is attached to the upper surface of the top cover (31), the interior of the mounting ring (45) is configured to be hollow, the inner side of the mounting ring (45) is configured to be open, and the inner surface of the mounting ring (45) is fixedly connected to an expansion bag (46), the expansion bag (46) is configured to be annular, wherein the expansion bag (46) is communicated with the internal cavity of the telescopic rod (44).

6. The soilless cultivation device for cultivating sweet corn seeds according to claim 5, characterized in that: A No. 1 plug-in board (47) is provided inside the mounting ring (45), and the upper and lower surfaces of the No. 1 plug-in board (47) are symmetrically fixedly connected with guide blocks (48), wherein the No. 1 plug-in board (47) is slidably connected to the upper and lower surfaces inside the mounting ring (45) through the guide blocks (48), and the No. 1 plug-in board (47) is set to be arc-shaped, and three No. 1 plug-in boards (47) are set at fixed intervals around the central axis of the mounting ring (45), and the two ends of the No. 1 plug-in board (47) are elastically slidably plugged with the No. 2 plug-in board (49), and the No. 1 plug-in board (47) and the No. 2 plug-in board (49) are combined into a ring shape, and the surface of the No. 1 plug-in board (47) away from the expansion bag (46) is provided with an engaging groove (410), and a plug-in frame (411) is elastically slidably connected in the engaging groove (410), and a columnar bag (412) is fixedly embedded in the surface of the plug-in frame (411) away from the No. 1 plug-in board (47).

7. A method for using a soilless cultivation device for growing sweet corn seeds, using the soilless cultivation device for growing sweet corn seeds according to claim 6, characterized in that: The following steps are involved: S1, introducing nutrient solution into the culture box (2) in advance through the top of the culture box (32), and after the nutrient solution is introduced, placing sweet corn seeds into the culture box (32); S2. After the seeds have germinated, the device and the corn seedlings are moved outdoors to receive sunlight; S3. When the seeds grow out of stalks, the motor (34) is started to reciprocate, and the motor (34) causes the top cover (31) to rotate, driving the culture box (32) on the top cover (31) to rotate together. The culture box (32) also rotates while rotating with the top cover (31), so that the corn plants receive sufficient sunlight.

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