A rice seedling cultivation device
By designing a rice seedling cultivation device with automatic adjustment function, the problem that rice seedlings on the bottom of the seedling plate cannot obtain sufficient light, and the optimal lighting conditions for rice seedlings and the stability and reliability of the device are achieved.
Patent Information
- Application Number
- CN202421478053.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-26
AI Technical Summary
After adjusting the angle of the existing rice seedling plant, the rice seedlings on the bottom of the seedling pan cannot obtain sufficient direct light, which affects their growth rate, plant height, root system development and stress resistance.
A rice seedling cultivation device is designed, including a base, an adjustment frame, a first cross rod, a tooth ring, a third rotating plate and a sliding control mechanism. Through the automatic adjustment function of the sliding control mechanism, it is ensured that all rice seedlings can receive sufficient sunlight, and smooth angle adjustment and stable support are achieved through the arc structure and roller design.
The device reduces the need for manual adjustment through automatic adjustment function, ensures that rice seedlings are always in the optimal lighting conditions, improves the light efficiency and uniformity of the plants, and enhances the stability and reliability of the device.
Smart Images
Figure CN222736795U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rice seedling cultivation, in particular to a rice planting and seedling cultivation device. Background Art
[0002] The seedling raising method is a cultivation method in which seedlings are cultivated in specially set up seedling beds for transplanting into production fields. Rice, sweet potatoes, vegetables, fruit trees, flowers and other crops mostly adopt the seedling raising method. Depending on the site and facilities, it can be divided into protected seedling raising method, open field seedling raising method, factory seedling raising method, soilless seedling raising method, block seedling raising method, nutrient pot seedling raising method, etc. Compared with the direct seeding method, the advantage of this method is that it creates the required environmental conditions according to the characteristics of crop seedling growth and development, adopts advanced seedling raising technology, and conducts centralized management to cultivate seedlings of good quality and sufficient quantity. The role of seedling raising is to sow in advance in seasons that are not suitable for growth, extend the crop growth period, and make the crop mature early; it is convenient for fine management, promotes the growth of seedlings to be strong and vigorous, and lays a good foundation for high yield and high quality; it makes economical use of land, improves the multiple cropping index, and increases the yield and output value per unit area.
[0003] Existing rice cultivation seedling devices can generally only adjust the angle. In actual operation, once the angle of the seedling tray is adjusted, some rice seedlings at the bottom of the seedling tray may not be able to obtain sufficient direct sunlight due to their relatively low position, thereby restricting the photosynthesis of these rice seedlings, affecting their normal growth rate, plant height, root development, stress resistance and other aspects, and ultimately having an adverse effect on the overall seedling quality and later yield potential. Utility Model Content
[0004] Based on this, the purpose of the utility model is to provide a rice seedling cultivation device to solve the technical problem that after the angle of the seedling tray is adjusted, some rice seedlings at the bottom of the seedling tray may not be able to obtain sufficient direct light.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rice seedling cultivation device, comprising a base, the top of the base is slidably connected to an adjustment frame, the inner wall of the adjustment frame is fixedly connected to a first crossbar, a toothed ring is fixedly connected to the first crossbar, a third rotating plate is rotatably connected inside the toothed ring, a sliding groove is provided on the third rotating plate, a sliding control mechanism is provided inside the sliding groove, the sliding control mechanism comprises a sliding plate, a latch is fixedly connected to the bottom of the sliding plate, the latch is meshed with the toothed ring, a spring is fixedly connected to the top of the sliding plate, and the top of the spring is connected to the adjustment frame;
[0006] Both ends of the sliding plate are fixedly connected with connecting blocks, the bottom of the connecting block is rotatably connected with a blocking block, and the inside of the blocking block is slidably connected with the sliding block.
[0007] By adopting the above technical solution, the base provides a stable supporting foundation for the entire device to ensure the stability of the seedling raising device; the adjustment frame is used to adjust the position and angle of the device; the first cross bar is used to fix the tooth ring; the tooth ring is used to engage with the latch in the sliding control mechanism to realize the up and down movement of the sliding plate; the third rotating plate is used to place the seedling raising tray, providing a platform for cultivating rice seedlings; the sliding groove is used to install the sliding control mechanism and provide a sliding space for the adjustment plate; the latch is engaged with the tooth ring, which can control the position and angle of the third rotating plate on the one hand and adjust the movement time of the adjustment plate on the other hand; the spring connects the sliding plate and the adjustment frame to provide elastic support to ensure that the sliding control mechanism can smoothly return to the original position after adjustment.
[0008] Furthermore, the bottom of the adjusting frame is arranged in an arc-shaped structure, the bottom of the adjusting frame is rotatably connected to a roller, and a cross bar is fixedly connected to the inner wall of the adjusting frame.
[0009] By adopting the above technical solution, the arc-shaped adjustment frame provides a specific bottom shape that matches the base, so that the adjustment frame can be smoothly tilted and adjusted on the base, the roller is connected to the bottom of the adjustment frame to provide movement support, and the cross bar is fixed to the inner wall of the adjustment frame to provide additional structural support, thereby enhancing the stability and load-bearing capacity of the adjustment frame.
[0010] Furthermore, a curved surface is provided on the top of the base, push rods are fixedly connected to the inner walls on both sides of the base, and a push block is fixedly connected to one end of the push rod.
[0011] By adopting the above technical solution, the arc surface is located at the top of the base and matches the arc-shaped bottom of the adjusting frame. The arc surface allows the adjusting frame to rotate or tilt smoothly on the base so as to adjust the angle of the seedling raising device. The push rod is fixed on the inner walls on both sides of the base to drive the movement of the adjusting frame. By operating the push rod, the movement of the adjusting frame on the base can be controlled to adjust the position of the seedling raising device. The push block is fixed at one end of the push rod and contacts the arc surface of the base or the adjusting frame. The push block helps convert the force of the push rod into rotation of the adjusting frame.
[0012] Furthermore, the push block and the cross bar are slidably connected.
[0013] By adopting the above technical solution, the sliding connection between the push block and the cross bar allows the cross bar to move along the push block, so that the cross bar can move smoothly in the push block, thereby allowing the push rod to more effectively adjust the position and angle of the adjustment frame.
[0014] Furthermore, two springs are provided, the two springs are arranged in a mirror image, and the sliding plate and the adjustment frame are slidably connected.
[0015] By adopting the above technical solution, the double spring design provides balanced elastic force, helps maintain the stability of the sliding plate, increases the durability and reliability of the device, and the sliding connection design of the sliding plate makes the adjustment process more reliable and facilitates the stable sliding of the sliding plate, so that the device can adapt to different environmental conditions and provide optimal growth conditions for rice seedlings.
[0016] Furthermore, two of the connecting blocks, blocking blocks and sliding blocks are provided, and the two connecting blocks, blocking blocks and sliding blocks are arranged in a mirror image.
[0017] By adopting the above technical solution, the mirror-image arrangement of the connecting block, the blocking block and the sliding block can achieve the effect of blocking the adjustment plate on both sides at the same time, thereby preventing the adjustment plate from sliding in the non-sliding zone.
[0018] Furthermore, a plurality of rollers are provided, and the plurality of rollers are evenly distributed along the bottom of the adjustment frame at equal distances.
[0019] By adopting the above technical solution, the rollers make it possible for the entire adjustment frame to be easily moved between different positions. Multiple evenly distributed rollers provide balanced and stable support, ensuring smoothness and ease of operation when moving the entire device. The evenly distributed design ensures that each roller can bear equal weight, preventing any single roller from being subjected to excessive pressure, helping to ensure smoother movement of the device and reducing the labor intensity of the operator.
[0020] Furthermore, an adjustment plate is slidably connected inside the sliding groove, and the adjustment plates are provided in two groups, and each group of the adjustment plates includes a plurality of adjustment plates.
[0021] By adopting the above technical solution, the adjusting plate can drive the rice seedlings on the top to achieve a sliding operation, and multiple groups of adjusting plates can provide multiple spaces for placing the seedlings.
[0022] Furthermore, two sliding control mechanisms are provided, and the two sliding control mechanisms are arranged in a mirror image.
[0023] By adopting the above technical solution, two sliding control mechanisms are arranged on different sides of the device to control the movement and position of the adjustment plate. They work together to ensure the precise movement of the adjustment plate. The two sliding control mechanisms are arranged in a mirrored form, thereby providing similar functions on both sides of the device, making the operation smoother and easier.
[0024] Furthermore, a second rotating plate is disposed above the third rotating plate, a first rotating plate is disposed above the second rotating plate, and both the first rotating plate and the second rotating plate are rotatably connected to the adjustment frame.
[0025] By adopting the above technical solution, the second rotating plate is located between the third rotating plate and the first rotating plate, providing an adjustment platform for the middle layer. The second rotating plate can be adjusted separately to further optimize the lighting conditions of the plants. The first rotating plate, as the topmost rotating plate, directly supports the seedling tray and the plants. The first rotating plate is rotatably connected to the adjustment frame and can be independently adjusted according to the position of the sun, so that the rice cultivation seedling device can provide multi-level and flexible sunlight adjustment capabilities, greatly improving the efficiency and uniformity of plant lighting.
[0026] In summary, the utility model mainly has the following beneficial effects:
[0027] 1. The utility model provides a third rotating plate and a sliding control mechanism. When the direction of sunlight changes and the rice seedlings on one side do not receive enough light, the adjusting plate can automatically slide to the other side after the third rotating plate, the second rotating plate and the first rotating plate are rotated, so that all seedlings can receive sufficient sunlight, reducing the need for manual adjustment and ensuring that the rice seedlings are always under the best lighting conditions. In addition, the spring, the latch and the sliding control mechanism help the adjusting plate to be re-fixed after adjustment to prevent unintentional sliding, thereby increasing the stability and reliability of the system.
[0028] 2. The utility model sets an adjustment frame and a base. The bottom of the adjustment frame with an arc structure provides a specific bottom shape for the adjustment frame, which cooperates with the base. The arc structure enables the adjustment frame to be smoothly rotated or tilted on the base. The arc structure helps to adjust the seedling environment according to the sunlight direction of the four seasons to ensure that the plants receive uniform light, so that the rice seedling cultivation device provides users with convenient operation and optimized cultivation conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model from the side;
[0031] Figure 3 It is a half-section structural schematic diagram of the sliding control mechanism of the utility model;
[0032] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.
[0033] In the figure: 1. base; 2. adjustment frame; 3. first cross bar; 4. gear ring; 5. third rotating plate; 6. sliding control mechanism; 601. sliding plate; 602. latching teeth; 603. connecting block; 604. spring; 605. blocking block; 606. sliding block; 7. cross bar; 8. push rod; 9. roller; 10. adjustment plate; 11. sliding groove; 12. second rotating plate; 13. first rotating plate; 14. arc surface; 15. push block. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0035] The following describes an embodiment of the utility model based on its overall structure.
[0036] Embodiment 1:
[0037] A rice seedling cultivation device, such as Figure 1-Figure 4 As shown, it includes a base 1, the top of the base 1 is slidably connected to an adjustment frame 2, the inner wall of the adjustment frame 2 is fixedly connected to a first crossbar 3, a toothed ring 4 is fixedly connected to the first crossbar 3, a third rotating plate 5 is rotatably connected inside the toothed ring 4, a sliding groove 11 is provided on the third rotating plate 5, a sliding control mechanism 6 is arranged inside the sliding groove 11, the sliding control mechanism 6 includes a sliding plate 601, a latch 602 is fixedly connected to the bottom of the sliding plate 601, the latch 602 is meshed with the toothed ring 4, a spring 604 is fixedly connected to the top of the sliding plate 601, and the top of the spring 604 is connected to the adjustment frame 2;
[0038] Both ends of the sliding plate 601 are fixedly connected to connecting blocks 603, the bottom of the connecting block 603 is rotatably connected to a blocking block 605, and the inside of the blocking block 605 is slidably connected to a sliding block 606. The base 1 provides a stable support foundation for the entire device, ensuring the stability of the seedling raising device, preventing it from shaking or tilting during use, and facilitating stable placement on different ground surfaces. The adjustment frame 2 is used to adjust the position and angle of the device, allowing the user to adjust the seedling raising environment according to sunlight conditions, providing flexibility and facilitating the user to adjust the seedling raising environment according to needs. The first cross bar 3 is used to fix the tooth ring 4, and the tooth ring 4 is used to engage with the latch tooth 602 in the sliding control mechanism to realize the up and down movement of the sliding plate 601, ensuring that the sliding control mechanism 6 can use the tooth ring 4 to realize the adjustment of the adjustment plate 10 The third rotating plate 5 is used for placing the seedling tray, providing a platform for cultivating rice seedlings. The sliding groove 11 is used to install the sliding control mechanism 6 and provide a sliding space for the adjusting plate 10. The latch 602 is engaged with the gear ring 4. On the one hand, it can control the position and angle of the third rotating plate 5. On the other hand, it can adjust the movement time of the adjusting plate 10 to achieve precise adjustment of the angle of the seedling plate. At the same time, it can control the movement of the rice seedlings to adapt to different sunlight conditions and improve the growth efficiency of plants. The spring 604 connects the sliding plate 601 and the adjusting frame 2 to provide elastic support to ensure that the sliding control mechanism 6 can smoothly return to the original position after adjustment. The use of the spring 604 makes the adjustment process smoother and ensures the durability and reliability of the device.
[0039] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 Two springs 604 are provided, and the two springs 604 are arranged in a mirror image. The sliding plate 601 and the adjustment frame 2 are slidably connected. The double spring design provides a balanced elastic force to help maintain the stability of the sliding plate 601. The mirror image springs 604 make the sliding plate 601 evenly stressed during adjustment, improve the stability and smoothness of the operation, and increase the durability and reliability of the device. The sliding connection design of the sliding plate 601 makes the adjustment process more reliable and facilitates the stable sliding of the sliding plate 601, so that the device can adapt to different environmental conditions and provide optimal growth conditions for rice seedlings.
[0040] See also Figure 3 and Figure 4 There are two connecting blocks 603, blocking blocks 605 and sliding blocks 606, and the two connecting blocks 603, blocking blocks 605 and sliding blocks 606 are arranged in a mirror image. The mirror image arrangement of the connecting blocks 603, blocking blocks 605 and sliding blocks 606 can achieve the effect of blocking the adjustment plate 10 on both sides at the same time, preventing the adjustment plate 10 from sliding in the non-sliding area, improving the control of the adjustment plate 10, and preventing the rice seedlings on the adjustment plate 10 from receiving less sunlight and causing slower development.
[0041] See also Figure 3 and Figure 4 The sliding groove 11 is internally slidably connected with an adjusting plate 10. Two groups of adjusting plates 10 are provided. Each group of adjusting plates 10 includes multiple adjusting plates 10. The adjusting plates 10 can drive the rice seedlings on the top to slide, thereby achieving the effect of moving the adjusting plates 10 and the rice seedlings on the top to a specified position when the angle of sunlight changes. Multiple groups of adjusting plates 10 can provide multiple spaces for placing seedlings, providing a wider range of adjustment capabilities.
[0042] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 There are two sliding control mechanisms 6, which are arranged in a mirror image. The two sliding control mechanisms 6 are arranged on different sides of the device to control the movement and position of the adjusting plate 10. They work together to ensure the precise movement of the adjusting plate 10, which helps to accurately control the sliding of the adjusting plate 10 when adjusting the angle of the seedling plate, and reduces the excessive sliding or non-slipping of the adjusting plate 10 caused by control failure. The mirror image arrangement design has two sliding control mechanisms 6 arranged in a mirror image form, thereby providing similar functions on both sides of the device, which helps to maintain sufficient control force during the adjustment process and makes the operation smoother and easier.
[0043] See also Figure 1 , Figure 2 and Figure 3 A second rotating plate 12 is arranged above the third rotating plate 5, and a first rotating plate 13 is arranged above the second rotating plate 12. The first rotating plate 13 and the second rotating plate 12 are both rotatably connected to the adjusting frame 2. The second rotating plate 12 is located between the third rotating plate 5 and the first rotating plate 13, providing an adjustment platform for the middle layer. The second rotating plate 12 can be adjusted separately to further optimize the lighting conditions of the plants. By independently adjusting the second rotating plate 12, the angle of the seedling plate can be more finely controlled to adapt to sunlight at different heights and directions, and improve the utilization rate of light. The first rotating plate 13, as the rotating plate on the top layer, directly supports the seedling tray and the plants. The first rotating plate 13 is rotatably connected to the adjusting frame 2 and can be independently adjusted according to the position of the sun, so that the seedling tray on the top layer can be quickly and accurately adjusted to obtain the best sunlight, so that the rice cultivation seedling device can provide multi-level and flexible sunlight adjustment capabilities, which greatly improves the efficiency and uniformity of plant lighting.
[0044] The implementation principle of the utility model is as follows: first, the rice seedlings are placed on the third rotating plate 5, the second rotating plate 12, the first rotating plate 13 and the adjusting plate 10, and the two groups of adjusting plates 10 are pressed tightly on both sides of the sliding groove 11. At this time, each group of adjusting plates 10 is restricted by the blocking block 605 and the sliding groove 11, so that the adjusting plate 10 cannot move. When the irradiation direction of sunlight changes during the day, the third rotating plate 5, the second rotating plate 12 and the first rotating plate 13 are moved so that the third rotating plate 5, the second rotating plate 12 and the first rotating plate 13 can be aligned with the direction of sunlight. At this time, the third rotating plate 5, the second rotating plate 12 and the first rotating plate 13 are at a certain angle, and at the same time, the latching teeth 602 move upward along the gear ring 4, driving the sliding plate 601 to move upward;
[0045] Then, the connecting block 603 and the blocking block 605 are driven to rise, and at this time, an adjusting plate 10 slides out from between the blocking block 605 and the sliding groove 11, and slides from a higher position to a lower position. After sliding to the other end, the blocking block 605 at the other end is pushed to rotate, so that the adjusting plate 10 enters the space formed by the blocking block 605 and the sliding groove 11 at the other end, so that when the third rotating plate 5, the second rotating plate 12 and the first rotating plate 13 rotate, the rice seedlings on one side of the adjusting plate 10 cannot be exposed to the sun, and the rice seedlings can automatically slide to the position on the other side where they can be exposed to the sun.
[0046] Then the spring 604 pushes the sliding plate 601 downward, so that the locking tooth 602 is re-engaged in the lower position of the gear ring 4, and the blocking block 605 and the internal sliding block 606 contact each other with the adjustment plate 10 again, thereby blocking the adjustment plate 10 in the higher position and preventing the adjustment plate 10 from sliding down.
[0047] Embodiment 2:
[0048] See also Figure 3 and Figure 4 , a plurality of rollers 9 are provided, and the plurality of rollers 9 are evenly distributed along the bottom of the adjusting frame 2 at equal intervals. The rollers 9 enable the entire adjusting frame 2 to be easily moved between different positions. The plurality of evenly distributed rollers 9 provide balanced and stable support, ensuring the stability and ease of operation when moving the entire device, which is conducive to easily adjusting the position of the seedling raising device in a large greenhouse or farm to adapt to different lighting conditions or work requirements. The evenly distributed design ensures that each roller 9 can bear an equal weight, preventing any single roller from bearing excessive pressure, reducing the burden of a single roller 9, reducing wear and damage caused by weight concentration, extending the service life of the roller 9 and the entire device, and helping to ensure smoother movement of the device and reducing the labor intensity of the operator.
[0049] See also Figure 1 , Figure 2 and Figure 3The bottom of the adjusting frame 2 is arranged in an arc-shaped structure, and the bottom of the adjusting frame 2 is rotatably connected with a roller 9, and a cross bar 7 is fixedly connected to the inner wall of the adjusting frame 2. The adjusting frame 2 with an arc-shaped structure provides a specific bottom shape to cooperate with the base 1, so that the adjusting frame 2 can be smoothly tilted and adjusted on the base 1. Through the arc-shaped structure, the movement and angle adjustment of the adjusting frame 2 become more flexible and smooth, which is helpful to adjust the seedling environment according to the direction of sunlight or other environmental factors to ensure that the plants receive uniform light. The roller 9 is connected to the bottom of the adjusting frame 2 to provide mobile support, so that the entire device can be easily moved between different positions, which is more convenient to adjust the position. The cross bar 7 is fixed on the inner wall of the adjusting frame 2 to provide additional structural support, enhance the stability and load-bearing capacity of the adjusting frame 2, and improve the structural strength of the entire seedling device, making it more durable and stable, especially when carrying heavier seedling boards and plants, to ensure that the device will not be deformed or damaged due to excessive weight.
[0050] See also Figure 1 , Figure 2 and Figure 3 , a curved surface 14 is provided on the top of the base 1, and push rods 8 are fixedly connected to the inner walls on both sides of the base 1, and a push block 15 is fixedly connected to one end of the push rod 8. The curved surface 14 is located at the top of the base 1 and matches the curved bottom of the adjusting frame 2. The curved surface 14 allows the adjusting frame 2 to rotate or tilt smoothly on the base 1 so as to adjust the angle of the seedling raising device, making the angle adjustment of the adjusting frame 2 more flexible and smooth, which helps to optimize the lighting conditions of the plants according to the position of the sun. The push rods 8 are fixed on the inner walls on both sides of the base 1 to drive the movement of the adjusting frame 2. By operating the push rods 8, the movement of the adjusting frame 2 on the base 1 can be controlled, thereby adjusting the position of the seedling raising device. The position of the entire device can be easily adjusted using the push rods 8, so that the seedling raising device can adapt to different environmental conditions. The push block 15 is fixed at one end of the push rod 8 and contacts with the curved surface 14 of the base 1 or the adjusting frame 2. The push block 15 helps to convert the force of the push rod 8 into the rotation of the adjusting frame 2. The existence of the push block 15 makes the movement of the adjusting frame 2 more stable and precise.
[0051] See also Figure 1 , Figure 2 and Figure 3 The push block 15 is slidably connected to the cross bar 7. The sliding connection between the push block 15 and the cross bar 7 allows the cross bar 7 to move along the push block 15, so that the cross bar 7 can move smoothly in the push block 15, thereby allowing the push rod 8 to more effectively adjust the position and angle of the adjustment frame 2. The design of the sliding connection makes the operation of the push rod 8 more flexible and smooth, reduces friction and wear, and improves the efficiency of the device adjustment.
[0052] The implementation principle of the utility model is: first, when the irradiation angle is different due to seasonal changes, the push rod 8 is started, the push rod 8 drives the push block 15, and then drives the adjustment frame 2 to slide on the base 1 through the cross bar 7, so as to achieve the overall angle adjustment of the adjustment frame 2 to adapt to the different incident angles of sunlight in different seasons.
[0053] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.
[0054] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A rice seedling cultivation device, characterized in that: The invention comprises a base (1), wherein the top of the base (1) is slidably connected to an adjustment frame (2), the inner wall of the adjustment frame (2) is fixedly connected to a first cross bar (3), a toothed ring (4) is fixedly connected to the first cross bar (3), a third rotating plate (5) is rotatably connected inside the toothed ring (4), a sliding groove (11) is provided on the third rotating plate (5), a sliding control mechanism (6) is arranged inside the sliding groove (11), and the sliding control mechanism (6) comprises a sliding plate (601), a latching tooth (602) is fixedly connected to the bottom of the sliding plate (601), the latching tooth (602) is meshed with the toothed ring (4), a spring (604) is fixedly connected to the top of the sliding plate (601), and the top end of the spring (604) is connected to the adjustment frame (2); Both ends of the sliding plate (601) are fixedly connected to connecting blocks (603), the bottom of the connecting block (603) is rotatably connected to a blocking block (605), and the inside of the blocking block (605) is slidably connected to a sliding block (606).
2. The rice seedling cultivation device according to claim 1, characterized in that: The bottom of the adjustment frame (2) is arranged in an arc-shaped structure, the bottom of the adjustment frame (2) is rotatably connected to a roller (9), and a cross bar (7) is fixedly connected to the inner wall of the adjustment frame (2).
3. The rice seedling cultivation device according to claim 1, characterized in that: The top of the base (1) is provided with an arc surface (14), and push rods (8) are fixedly connected to the inner walls on both sides of the base (1), and one end of the push rod (8) is fixedly connected to a push block (15).
4. The rice seedling cultivation device according to claim 3, characterized in that: The push block (15) and the cross bar (7) are slidably connected.
5. The rice seedling cultivation device according to claim 1, characterized in that: Two springs (604) are provided, and the two springs (604) are arranged in a mirror image. The sliding plate (601) and the adjustment frame (2) are slidably connected.
6. The rice seedling cultivation device according to claim 1, characterized in that: The connecting block (603), the blocking block (605) and the sliding block (606) are each provided with two, and the two connecting blocks (603), the blocking block (605) and the sliding block (606) are arranged in a mirror image.
7. The rice seedling cultivation device according to claim 2, characterized in that: A plurality of rollers (9) are provided, and the plurality of rollers (9) are evenly distributed at equal distances along the bottom of the adjustment frame (2).
8. The rice seedling cultivation device according to claim 1, characterized in that: An adjustment plate (10) is slidably connected inside the sliding groove (11), and two groups of the adjustment plates (10) are provided, and each group of the adjustment plates (10) includes a plurality of adjustment plates (10).
9. The rice seedling cultivation device according to claim 1, characterized in that: Two sliding control mechanisms (6) are provided, and the two sliding control mechanisms (6) are arranged in a mirror image.
10. The rice seedling cultivation device according to claim 1, characterized in that: A second rotating plate (12) is arranged above the third rotating plate (5), a first rotating plate (13) is arranged above the second rotating plate (12), and both the first rotating plate (13) and the second rotating plate (12) are rotatably connected to the adjustment frame (2).