Three-dimensional cultivation seedbed for rice breeding

Abstract

The invention provides a three-dimensional cultivation seedbed for rice breeding, and relates to the technical field of rice seedling beds, the three-dimensional cultivation seedbed comprises a seedling bed board, trapezoid seedling groove assemblies and seedling bed trapezoid unfolding assemblies, the seedling bed trapezoid unfolding assemblies are arranged on the two sides of the seedling bed board, and unfolding center clamping groove rails are arranged at the two ends of the upper surface of the seedling bed board; a plurality of trapezoidal seedling culture groove assemblies are arranged in the two seedling culture bed trapezoidal unfolding assemblies in a staggered manner; the rail moving trolley and the lower trolley rail wheels at the lower end slide on the external illumination moving rail, the equipment can be moved to a place with sufficient illumination for illumination, then the trapezoidal seedling culture groove assemblies alternately arranged on the two sides are unfolded outwards in a trapezoidal mode through the seedling culture bed trapezoidal unfolding assembly, and therefore it can be guaranteed that illumination is sufficient, and the illumination area is sufficient.

Description

Technical Field

[0001] This invention relates to the field of rice seedling bed technology, specifically a three-dimensional seedling bed for rice breeding. Background Technology

[0002] Seedling cultivation in a nursery refers to the cultivation of seedlings in a specific environment and with appropriate nutrients. Originally, it meant cultivating seedlings in a nursery, hotbed, or greenhouse for transplanting into the ground. It can also refer to the stage when various microorganisms, after being artificially protected, can survive independently. For example, this invention with application number CN202210028489.8 belongs to the field of Dendrobium officinale cultivation technology, specifically a movable seedbed for Dendrobium officinale cultivation. The proposed solution includes a cultivation box, inside which is installed a water collection trough arranged along its height. A wide-adjustable seedbed assembly is attached to the top of the water collection trough. A cultivation mechanism is housed in the seedbed assembly, and an extension mechanism is attached inside the cultivation mechanism. A spraying mechanism is installed on the top of the seedbed assembly, and an adjustment mechanism for adjusting the extension mechanism is installed on one side of the cultivation box. This invention can adjust the planting gap between plants, allowing for vertical and horizontal spacing adjustments, suitable for plant cultivation operations at different stages. It also facilitates the transfer of plants for cultivation and the rapid replacement of cultivation baskets, ensuring that plants have soil suitable for their growth stage during cultivation, improving cultivation efficiency and quality, and reducing the labor intensity of cultivation personnel.

[0003] However, in practice, the above-mentioned technical solutions, such as multi-layer fixed frames or rotating cylindrical structures, can easily lead to insufficient light in the lower layers. In rotating structures, the upper and lower seedbeds cannot be completely interlaced when rotating, resulting in some seedlings not receiving light. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a three-dimensional seedbed for rice breeding, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a three-dimensional seedling bed for rice breeding, comprising a seedling bed board, a trapezoidal seedling trough assembly, and a trapezoidal unfolding assembly for the seedling bed. The trapezoidal unfolding assembly for the seedling bed board is provided on both sides of the seedling bed board. Both ends of the upper surface of the seedling bed board are provided with unfolding center slot rails. Several trapezoidal seedling trough assemblies are staggered inside the two trapezoidal unfolding assemblies for the seedling bed.

[0006] Preferably, the upper end of the central slot rail is integrally provided with a longitudinal beam on the central slot rail, and the side of the longitudinal beam on the central slot rail is integrally provided with a truss beam on the seedling bed.

[0007] Preferably, a track-moving trolley is fixedly installed at the lower end of the seedling bed board, a wheel drive motor is fixedly installed at the lower end of the track-moving trolley, and a lower track wheel is installed at the drive end of the wheel drive motor.

[0008] Preferably, the lower end of the unloading track wheel is provided with an external lighting moving track, and the lower end of the external lighting moving track is provided with a plurality of moving track sleepers.

[0009] Preferably, the trapezoidal seedling trough assembly includes: a seedling trough frame, a seedling trough side plate, a seedling trough cup grid, a seedling trough middle partition, an unfolding rotating shaft, an outer connecting shaft of the rotating shaft, a rotating shaft side seat, a slotted rail clip slide, and an airbag expansion seat. The seedling trough is provided with seedling trough side plates on both sides of the frame, and a seedling trough partition is integrally provided in the middle of the frame. An unfolding rotating shaft is rotatably installed at one end of the frame, and a rotating shaft side seat is rotatably installed at both ends of the unfolding rotating shaft. An external connecting shaft is rotatably installed at the outer end of the rotating shaft side seat.

[0010] Preferably, an unfolding fixing rod is fixedly installed on both sides of the other end of the seedling trough frame, a fixing rod side seat is fixedly installed on the outer end of the unfolding fixing rod, a trapezoidal unfolding slide rod is fixedly connected to one side of the fixing rod side seat, an unfolding slide rod sleeve is slidably sleeved on the trapezoidal unfolding slide rod, and a slotted rail clip slide seat is integrally provided on the outer end of the unfolding slide rod sleeve; The slotted rail slide block is slidably mounted in the slotted rail at the unfolding center.

[0011] Preferably, an ultraviolet light shell is fixedly installed at the lower end of the frame of the seedling tray, and several ultraviolet lamps are fixedly installed at the lower end of the ultraviolet light shell.

[0012] Preferably, the airbag expansion seat includes: an airbag upper cover, a cup grid mounting groove, a cup grid spacer frame, an airbag inflation chamber, an airbag hard shell base, an expansion adaptation groove, and an airbag connecting tube; The upper surface of the airbag cover is provided with a cup grid mounting groove, and a cup grid spacing frame is integrally provided on the cup grid mounting groove. A support adaptation groove is provided at the lower end of the cup grid spacing frame. An airbag hard shell base is provided at the lower end of the airbag cover. The airbag hard shell base is integrally connected to the seedling trough frame. An airbag inflation chamber is provided inside the airbag hard shell base. An airbag connecting air tube is connected to the side of the airbag hard shell base.

[0013] Preferably, the trapezoidal unfolding assembly of the seedling bed includes: a bed board connecting seat, a connecting seat frame, a trapezoidal connecting rod rotating seat, an unfolding transmission shaft, an unfolding differential transmission box, an unfolding drive motor, a trapezoidal connecting side rod, a trapezoidal inner rod, a trapezoidal unfolding limiting platform, and a trapezoidal unfolding top beam; The side of the bed board connecting seat is integrally provided with a connecting seat frame, the upper end of the connecting seat frame is integrally provided with a trapezoidal connecting rod rotating seat, the upper end of the connecting seat frame and the rear end of the trapezoidal connecting rod rotating seat is integrally provided with a trapezoidal unfolding limiting platform, and an unfolding transmission shaft is rotatably provided on the trapezoidal connecting rod rotating seat. The unfolding drive shaft is integrally provided with a trapezoidal connecting side rod and a trapezoidal inner rod, and the upper end of the trapezoidal connecting side rod and the trapezoidal inner rod is integrally provided with a trapezoidal unfolding top beam.

[0014] Preferably, an unfolding differential transmission box is fixedly installed on the upper end of the bed board connecting seat, an unfolding drive motor is fixedly installed on the side of the unfolding differential transmission box, and the output shaft of the unfolding differential transmission box is coaxially and fixedly connected to the unfolding drive shaft.

[0015] This invention provides a three-dimensional seedbed for rice breeding. It has the following beneficial effects: (1) The present invention can move the equipment to a place with sufficient light by sliding the track moving trolley and the lower end of the track wheel on the external light moving track. Then, the trapezoidal seedling trough assembly arranged on both sides is unfolded outward in a trapezoidal shape by the trapezoidal unfolding assembly of the seedling bed, so as to ensure sufficient light and sufficient light area. (2) The present invention enables the seedling bed frame to remain horizontal when unfolded by the outer connecting shaft of the rotating shaft after the trapezoidal unfolding component is unfolded, and the unfolding slide sleeve and slotted rail card slide seat on the trapezoidal unfolding slide rod are restricted, and the slotted rail card slide seat is restricted to sliding within the slotted rail in the center of the unfolding, so that it can only slide up and down. The ultraviolet light lamp set below can also provide supplemental light for the seedlings at the lower end. (3) After the invention is unfolded, air is pumped into the air tube of the airbag to fill the airbag inflation chamber. The cup grid installation groove is opened by the opening adaptation groove at the lower end of the airbag cover to form an arc-shaped surface, so that the upper seedling trough cup grid can be opened to prevent adjacent seedling leaves from intersecting and obstructing light. (4) The present invention drives the unfolding drive motor to drive the unfolding differential transmission box on one side, thereby driving the unfolding drive shaft to rotate, causing the trapezoidal connecting side rod and trapezoidal inner rod installed on it to rotate. The trapezoidal seedling trough assembly connected to it can be unfolded in a trapezoidal shape because it is restricted by the sliding of the unfolding center slot rail in the middle. The trapezoidal unfolding limit platform can limit the unfolding angle of the trapezoidal connecting side rod and trapezoidal inner rod, protecting the unfolding differential transmission box and unfolding drive motor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the trapezoidal seedling trough assembly in this invention; Figure 4 This is a schematic diagram of the trapezoidal seedling trough assembly from another perspective in this invention; Figure 5 This is a schematic diagram of the airbag deployment seat in this invention; Figure 6 This is a side view of the airbag deployment seat in this invention. Figure 7 For the present invention Figure 6 A schematic diagram of the structure of line aa in the middle; Figure 8 This is a schematic diagram of the trapezoidal unfolding component of the seedling bed in this invention; Figure 9 This is a schematic diagram of the trapezoidal unfolding component of the seedling bed in this invention from another perspective.

[0017] The components include: 1. Seedling bed board; 2. Deployment center slot rail; 3. Longitudinal beam on the center slot rail; 4. Trapezoidal seedling trough assembly; 401. Seedling trough frame; 402. Seedling trough side panel; 403. Seedling trough cup holder; 404. Seedling trough middle partition; 405. Deployment fixing rod; 406. Fixing rod side seat; 407. Trapezoidal deployment slide rod; 408. Deployment rotation shaft; 409. Rotation shaft outer connecting shaft; 410. Rotation shaft side seat; 411. Deployment slide rod sleeve; 412. Slotted rail clip slide seat; 413. Airbag expansion seat; 4131. Airbag upper cover; 4132. Cup holder mounting slot; 4133. Cup holder interval frame; 4134. Airbag inflation chamber; 4135. 4136. Airbag hard shell base; 4137. Spreading adaptation groove; 4138. Airbag connecting air tube; 419. Ultraviolet light shell; 410. Ultraviolet light lamp; 5. Truss beam on the seedling bed; 6. Trapezoidal unfolding assembly of the seedling bed; 601. Bed board connecting seat; 602. Connecting seat frame; 603. Trapezoidal connecting rod rotating seat; 604. Unfolding drive shaft; 605. Unfolding differential transmission box; 606. Unfolding drive motor; 607. Trapezoidal connecting side rod; 608. Trapezoidal inner rod; 609. Trapezoidal unfolding limiting platform; 610. Trapezoidal unfolding top beam; 7. External illumination moving track; 8. Moving track sleeper; 9. Track moving trolley; 10. Trolley wheel drive motor; 11. Lower track wheel. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 2 As shown, this embodiment of the invention provides a three-dimensional seedling bed for rice breeding, including a seedling bed board 1, a trapezoidal seedling trough assembly 4, and a trapezoidal unfolding assembly 6. The trapezoidal unfolding assembly 6 is provided on both sides of the seedling bed board 1. A central slot rail 2 is provided at both ends of the upper surface of the seedling bed board 1. Several trapezoidal seedling trough assemblies 4 are staggered within the two trapezoidal unfolding assemblies 6. A central slot rail upper longitudinal beam 3 is integrally provided at the upper end of the central slot rail 2. A seedling bed upper truss beam 5 is integrally provided on the side of the central slot rail upper longitudinal beam 3. A track-moving trolley 9 is fixedly installed at the lower end of the seedling bed board 1. A wheel drive motor 10 is fixedly installed at the lower end of the track-moving trolley 9. A lower track wheel 11 is installed at the drive end of the wheel drive motor 10. An external illumination moving track 7 is provided at the lower end of the lower illumination moving track 7. Several moving track sleepers 8 are provided at the lower end of the external illumination moving track 7.

[0020] In the above technical solution, the equipment can be moved to a place with sufficient light by sliding the track moving trolley 9 and the lower track wheel 11 on the external light moving track 7. Then, the trapezoidal seedling trough assembly 4 arranged alternately on both sides is unfolded outward in a trapezoidal shape by the seedling bed trapezoidal unfolding assembly 6, so as to ensure sufficient light and sufficient light area.

[0021] like Figure 1 , Figures 3 to 4 As shown, the trapezoidal seedling trough assembly 4 includes: a seedling trough frame 401, seedling trough side plates 402, seedling trough cup holders 403, seedling trough central partition 404, an unfolding rotating shaft 408, an external connecting shaft 409, a rotating shaft side seat 410, a slotted rail sliding seat 412, and an airbag expansion seat 413; the seedling trough frame 401 has seedling trough side plates 402 on both sides, and the seedling trough central partition 404 is integrally provided in the middle of the seedling trough frame 401; an unfolding rotating shaft 408 is rotatably installed at one end of the seedling trough frame 401, and rotating shaft side seats 410 are rotatably installed at both ends of the unfolding rotating shaft 408; a rotating shaft side seat 410 is rotatably installed at the outer end of the rotating shaft side seat 410. The moving shaft is connected to the external shaft 409. An unfolding fixing rod 405 is fixedly installed on both sides of the other end of the seedling tray frame 401. A fixing rod side seat 406 is fixedly installed on the outer end of the unfolding fixing rod 405. A trapezoidal unfolding slide rod 407 is fixedly connected to one side of the fixing rod side seat 406. An unfolding slide rod sleeve 411 is slidably sleeved on the trapezoidal unfolding slide rod 407. A slotted rail clip slide seat 412 is integrally provided on the outer end of the unfolding slide rod sleeve 411. The slotted rail clip slide seat 412 is slidably disposed within the unfolding center clip rail 2. An ultraviolet light shell 414 is fixedly installed at the lower end of the seedling tray frame 401. Several ultraviolet light lamps 415 are fixedly installed at the lower end of the ultraviolet light shell 414.

[0022] In the above technical solution, after the trapezoidal unfolding component 6 of the seedling bed is unfolded, it is driven by the outer connecting shaft 409 of the rotating shaft. The outer connecting shaft 409 of the rotating shaft rotates, and the unfolding slide sleeve 411 and the slotted rail card slide 412 on the trapezoidal unfolding slide 407 restrict the slide. The slotted rail card slide 412 slides and is restricted to the center slotted rail 2 of the unfolding, so that it can only slide up and down. This allows the seedling tray frame 401 to remain horizontal when unfolded, and the ultraviolet light lamp 415 set below can also provide supplemental light for the seedlings at the lower end.

[0023] like Figure 3 , Figures 5 to 7 As shown, the airbag expansion seat 413 includes: an airbag upper cover 4131, a cup grid mounting groove 4132, a cup grid spacing frame 4133, an airbag inflation chamber 4134, an airbag hard shell base 4135, an expansion adaptation groove 4136, and an airbag connecting air tube 4137; the upper surface of the airbag upper cover 4131 is provided with a cup grid mounting groove 4132, the cup grid mounting groove 4132 is integrally provided with a cup grid spacing frame 4133 at intervals, the lower end of the cup grid spacing frame 4133 is provided with an expansion adaptation groove 4136, the lower end of the airbag upper cover 4131 is provided with an airbag hard shell base 4135, the airbag hard shell base 4135 is integrally connected to the seedling tray frame 401, the airbag inflation chamber 4134 is provided inside the airbag hard shell base 4135, and the airbag connecting air tube 4137 is connected to the side of the airbag hard shell base 4135.

[0024] In the above technical solution, after unfolding, air is pumped into the air bladder connecting air pipe 4137 to fill the air bladder inflation chamber 4134 with air. The cup grid installation groove 4132 is opened through the opening adaptation groove 4136 at the lower end of the air bladder cover 4131 to form an arc-shaped surface, thereby enabling the upper seedling trough cup grid 403 to be opened to prevent adjacent seedling leaves from intersecting and obstructing light.

[0025] like Figure 1 , Figures 8 to 9As shown, the trapezoidal unfolding assembly 6 of the seedling bed includes: a bed board connecting seat 601, a connecting seat frame 602, a trapezoidal connecting rod rotating seat 603, an unfolding transmission shaft 604, an unfolding differential transmission box 605, an unfolding drive motor 606, a trapezoidal connecting side rod 607, a trapezoidal inner rod 608, a trapezoidal unfolding limiting platform 609, and a trapezoidal unfolding top beam 610; the connecting seat frame 602 is integrally provided on the side of the bed board connecting seat 601, and the trapezoidal connecting rod rotating seat 603 is integrally provided on the upper end of the connecting seat frame 602, and the upper end of the connecting seat frame 602 and located at the rear end of the trapezoidal connecting rod rotating seat 603 are integrally provided. The system is equipped with a trapezoidal unfolding limiting platform 609. An unfolding drive shaft 604 is rotatably mounted on the trapezoidal connecting rod rotating seat 603. A trapezoidal connecting side rod 607 and a trapezoidal inner rod 608 are integrally mounted on the unfolding drive shaft 604. A trapezoidal unfolding top beam 610 is integrally mounted on the upper end of the trapezoidal connecting side rod 607 and the trapezoidal inner rod 608. An unfolding differential transmission box 605 is fixedly installed on the upper end of the bed board connecting seat 601. An unfolding drive motor 606 is fixedly installed on the side of the unfolding differential transmission box 605. The output shaft of the unfolding differential transmission box 605 is coaxially and fixedly connected to the unfolding drive shaft 604.

[0026] In the above technical solution, by starting the unfolding drive motor 606, the unfolding differential transmission box 605 on one side is driven to rotate, thereby driving the unfolding transmission shaft 604 to rotate, causing the trapezoidal connecting side rod 607 and trapezoidal inner rod 608 installed on it to rotate. The trapezoidal seedling trough assembly 4 connected to it can be unfolded trapezoidally because it is restricted by the sliding of the unfolding center slot rail 2 in the middle. The trapezoidal unfolding limiting platform 609 can limit the unfolding angle of the trapezoidal connecting side rod 607 and trapezoidal inner rod 608, protecting the unfolding differential transmission box 605 and the unfolding drive motor 606.

[0027] Working principle: The present invention allows the equipment to be moved to a place with sufficient light for illumination by sliding the track moving trolley 9 and the lower track wheel 11 on the external light moving track 7. Then, the trapezoidal seedling trough assembly 4 arranged alternately on both sides is expanded outward in a trapezoidal shape by the seedling bed trapezoidal unfolding assembly 6, thereby ensuring sufficient light and sufficient light area. When the trapezoidal unfolding component 6 of the seedling bed is unfolded, it is driven by the outer connecting shaft 409 of the rotating shaft. The outer connecting shaft 409 of the rotating shaft rotates, and the unfolding slide sleeve 411 and the slotted rail card slide 412 on the trapezoidal unfolding slide 407 restrict the movement of the slide. The slotted rail card slide 412 is restricted to sliding within the slotted rail 2 of the unfolding center, so that it can only slide up and down. This allows the seedling trough frame 401 to remain horizontal when unfolded, and the ultraviolet light lamp 415 set below can also provide supplemental light for the seedlings at the lower end. After unfolding, air is pumped into the air bladder connecting air tube 4137 to fill the air bladder inflation chamber 4134 with air. The cup grid installation groove 4132 is opened through the opening adaptation groove 4136 at the lower end of the air bladder cover 4131 to form an arc-shaped surface, thereby enabling the upper seedling trough cup grid 403 to open to prevent adjacent seedling leaves from intersecting and obstructing light. Specifically, by starting the unfolding drive motor 606, the unfolding differential transmission box 605 on one side is driven to rotate, thereby driving the unfolding transmission shaft 604 to rotate, causing the trapezoidal connecting side rod 607 and trapezoidal inner rod 608 installed on it to rotate. The trapezoidal seedling trough assembly 4 connected to it can be unfolded trapezoidally because it is restricted by the sliding of the unfolding center slot rail 2 in the middle. The trapezoidal unfolding limit platform 609 can limit the unfolding angle of the trapezoidal connecting side rod 607 and trapezoidal inner rod 608, protecting the unfolding differential transmission box 605 and the unfolding drive motor 606.

[0028] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A three-dimensional rice seedling bed for rice breeding, comprising a seedling bed board (1), a trapezoidal seedling groove assembly (4) and a trapezoidal seedling bed unfolding assembly (6), characterized in that, Both sides of the seedling bed board (1) are provided with seedling bed trapezoidal unfolding components (6), and both ends of the upper surface of the seedling bed board (1) are provided with unfolding center slot rails (2). Several trapezoidal seedling trough components (4) are staggered in the two seedling bed trapezoidal unfolding components (6).

2. The three-dimensional seedbed for rice breeding according to claim 1, wherein The upper end of the central slot rail (2) is integrally provided with a longitudinal beam (3) on the middle slot rail, and the side of the longitudinal beam (3) on the middle slot rail is integrally provided with a truss beam (5) on the seedling bed.

3. The three-dimensional seedbed for rice breeding according to claim 2, wherein The lower end of the seedling bed board (1) is fixedly installed with a track moving trolley (9), the lower end of the track moving trolley (9) is fixedly installed with a small wheel drive motor (10), and the drive end of the small wheel drive motor (10) is installed with a lower track wheel (11).

4. The three-dimensional seedbed for rice breeding according to claim 3, wherein The lower end of the lower track wheel (11) is provided with an external light moving track (7), and the lower end of the external light moving track (7) is provided with a number of moving track sleepers (8).

5. The three-dimensional seedbed for rice breeding according to claim 4, wherein The trapezoidal seedling trough assembly (4) includes: a seedling trough frame (401), a seedling trough side plate (402), a seedling trough cup grid (403), a seedling trough middle partition (404), an unfolding rotating shaft (408), an outer connecting shaft of the rotating shaft (409), a rotating shaft side seat (410), a slotted rail clip slide (412), and an airbag opening seat (413). The seedling trough frame (401) is provided with seedling trough side plates (402) on both sides, and the seedling trough middle partition (404) is integrated in the middle of the seedling trough frame (401). An unfolding rotating shaft (408) is rotatably installed at one end of the seedling trough frame (401), and a rotating shaft side seat (410) is rotatably installed at both ends of the unfolding rotating shaft (408). An external connecting shaft (409) is rotatably installed at the outer end of the rotating shaft side seat (410).

6. The three-dimensional seedbed for rice breeding according to claim 5, wherein The other two sides of the seedling tray frame (401) are fixedly installed with unfolding fixing rods (405). The outer end of the unfolding fixing rod (405) is fixedly installed with a fixing rod side seat (406). A trapezoidal unfolding slide rod (407) is fixedly connected to one side of the fixing rod side seat (406). An unfolding slide rod sleeve (411) is slidably sleeved on the trapezoidal unfolding slide rod (407). A slotted rail clip slide seat (412) is integrally provided at the outer end of the unfolding slide rod sleeve (411). The slotted rail slide (412) is slidably disposed in the expansion center slot rail (2).

7. The three-dimensional seedbed for rice breeding according to claim 6, wherein An ultraviolet light shell (414) is fixedly installed at the lower end of the seedling tray frame (401), and several ultraviolet light lamps (415) are fixedly installed at the lower end of the ultraviolet light shell (414).

8. The three-dimensional seedbed for rice breeding according to claim 7, wherein The airbag expansion seat (413) includes: an airbag cover (4131), a cup grid mounting groove (4132), a cup grid partition frame (4133), an airbag inflation chamber (4134), an airbag hard shell base (4135), an expansion adaptation groove (4136), and an airbag connecting air tube (4137). The upper surface of the airbag cover (4131) is provided with a cup grid mounting groove (4132). The cup grid mounting groove (4132) is integrally provided with a cup grid spacing frame (4133). The lower end of the cup grid spacing frame (4133) is provided with an opening adaptation groove (4136). The lower end of the airbag cover (4131) is provided with an airbag hard shell base (4135). The airbag hard shell base (4135) is integrally connected with the seedling tray frame (401). An airbag inflation chamber (4134) is provided inside the airbag hard shell base (4135). An airbag connecting air tube (4137) is connected to the side of the airbag hard shell base (4135).

9. A three-dimensional seedbed for rice breeding according to claim 8, characterized in that, The trapezoidal unfolding assembly (6) of the seedling bed includes: a bed board connecting seat (601), a connecting seat frame (602), a trapezoidal connecting rod rotating seat (603), an unfolding transmission shaft (604), an unfolding differential transmission box (605), an unfolding drive motor (606), a trapezoidal connecting side rod (607), a trapezoidal inner rod (608), a trapezoidal unfolding limiting platform (609), and a trapezoidal unfolding top beam (610). The side of the bed board connecting seat (601) is integrally provided with a connecting seat frame (602), and the upper end of the connecting seat frame (602) is integrally provided with a trapezoidal connecting rod rotating seat (603). The upper end of the connecting seat frame (602) and the rear end of the trapezoidal connecting rod rotating seat (603) is integrally provided with a trapezoidal unfolding limiting platform (609), and an unfolding transmission shaft (604) is rotatably provided on the trapezoidal connecting rod rotating seat (603). The unfolding drive shaft (604) is integrally provided with a trapezoidal connecting side rod (607) and a trapezoidal inner rod (608), and a trapezoidal unfolding top beam (610) is integrally provided at the upper end of the trapezoidal connecting side rod (607) and the trapezoidal inner rod (608).

10. A three-dimensional seedbed for rice breeding according to claim 9, characterized in that, The upper end of the bed board connecting seat (601) is fixedly installed with a deployable differential transmission box (605), and the side of the deployable differential transmission box (605) is fixedly installed with a deployable drive motor (606). The output shaft of the deployable differential transmission box (605) is coaxially and fixedly connected with the deployable transmission shaft (604).

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