Fruit tree seedling raising device and method

Abstract

The invention relates to the technical field of fruit tree seedling raising devices, in particular to a fruit tree seedling raising device and method. Comprising a machine frame, a plurality of supporting discs installed in the machine frame and a driving piece installed in the machine frame and driven through a chain wheel chain, a supporting rod is installed outside the chain, when the supporting discs rotate along with the chain, pushing blocks move into arc grooves, and at the moment, guide blocks correspond to semi-spiral grooves in the corresponding positions and continue to rotate along with the supporting discs; the guide block rotates along with the arc groove under the guiding effect of the arc groove and gradually moves towards the direction close to the supporting disc, the semi-spiral groove synchronously limits the position of the guide block, the supporting disc is kept in a vertical state all the time, the problem that accumulated water of the supporting disc is difficult to discharge in the prior art is solved, and it is avoided that seedling roots are soaked in water for a long time; root systems of the seedlings are prevented from decaying, healthy growth of the seedlings is guaranteed, and the survival rate of the seedlings is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of fruit tree seedling raising devices, and in particular to a fruit tree seedling raising device and method. Background Art

[0002] In the field of fruit tree seedling cultivation, with the advancement of agricultural modernization, people's demand for efficient and automated seedling cultivation technology continues to increase. The traditional flat seedling cultivation method occupies a large area and is difficult to achieve large-scale automated management. In order to overcome these limitations, vertical circulation seedling cultivation devices came into being.

[0003] This device arranges multiple seedling layers in the vertical direction and uses a circular motion to move the seedlings alternately between different heights, thereby achieving efficient use of space and automation of the seedling raising process. However, this device has certain defects when in use: 1. When the current vertical ring seedling raising device is driven, the movement of the support plate is driven by a sprocket driving a chain. When the support plate ends its vertical up and down movement and turns into a circular front and back displacement process, the device will cause slight vibration. This vibration is particularly obvious when the support plate reaches the highest point, causing the support plate to shake abnormally, affecting the overall balance of the device. In extreme cases, the chain may be detached from the sprocket due to excessive stretching or wear of the sprocket, causing the entire device to be interrupted or even damaged, seriously affecting the efficiency and quality of seedling raising.

[0004] 2. Existing fruit tree seedling systems use a spraying method to add nutrient solution directly onto the leaves of the seedlings. Although this can quickly provide nutrition to the seedlings, it will cause nutrient solution to remain on the leaves. The residual nutrient solution not only increases the moisture on the leaves, causing diseases, but also may burn the leaves due to the high concentration of nutrient solution after evaporation, affecting the healthy growth of the seedlings. In addition, the support tray adopts a semi-enclosed structure, making it difficult to drain the accumulated water in time. Prolonged water accumulation will cause the roots of the fruit tree seedlings to be immersed in water for a long time, causing root rot and affecting the healthy growth of the seedlings.

[0005] Therefore, in order to improve the stability of the device during operation and ensure the healthy growth of seedlings, the present invention provides a fruit tree seedling raising device and method. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems existing in the prior art and to propose a fruit tree seedling raising device and method.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a fruit tree seedling raising device, comprising a frame, several support plates installed inside the frame, a driving member installed inside the frame and driven by a sprocket chain, and a support rod installed outside the chain.

[0008] One end of the support rod is rotatably connected to a shaft rod, and the end of the shaft rod away from the support plate is matched with a push block. Arc grooves that match the push block are symmetrically installed on the upper and lower ends of the frame, and the other end of the shaft rod is connected to the support plate.

[0009] The inner wall of the arc groove that contacts the end face of the push block is inclined, and the inner wall of the arc groove gradually tilts toward the side closer to the support plate from one end to the other end relative to the moving direction of the support plate. The rotation of the push block is limited and adjusted by the inner wall of the arc groove.

[0010] The interior of the push block is provided with two semi-spiral grooves arranged symmetrically with respect to the center, and a reset groove is provided at the intersection of the two semi-spiral grooves. Two guide blocks slidingly engaged with the reset grooves are provided on the outer side of the shaft rod. The support disk rotates with the chain, and the push block moves into the arc groove. At this time, the guide block corresponds to the semi-spiral groove at the corresponding position. As the support disk continues to rotate, the guide block rotates accordingly under the guidance of the arc groove and gradually moves toward the direction close to the support disk. The semi-spiral groove synchronously limits the position of the guide block, so that the support disk always remains in a vertical state.

[0011] A return spring is provided on one side of the push block close to the support plate, and the return spring is sleeved on the outside of the shaft.

[0012] As an improvement, the guide block is externally rotatably connected with a roller, and the roller is used to reduce the friction between the guide block and the semi-helical groove.

[0013] As an improvement, the shaft rod is connected to the support disk through a connecting mechanism, which includes a connecting plate fixedly connected to the end of the shaft rod away from the push block. The connecting plate is rotatably connected to the side of the support disk through a connecting shaft, and a reset torsion spring is sleeved on the outside of the connecting shaft. The two ends of the reset torsion spring are respectively inserted into the support disk and the connecting plate.

[0014] As an improvement, the lower end of the connecting plate is connected to a shaking structure, and the shaking structure extends to the lower side of the front end of the support plate. The shaking structure includes a fixed frame fixedly connected to the lower end of the connecting plate, and a connecting frame is slidably connected to the fixed frame through a spring rod. A trapezoidal block is installed on the upper part of one end of the connecting frame close to the frame, and a stop block cooperating with the trapezoidal block is installed on the top of the frame through a support column. When the trapezoidal block contacts the stop block, it drives the support plate to flip, so that excess nutrient solution is discharged.

[0015] As an improvement, drainage ports are provided on both sides of the rear end of the support plate, and a water guide bar is provided at the bottom of the rear end of the support plate.

[0016] As an improvement, a receiving groove is provided on the side where the support columns are close to each other, and a stop block is slidably connected to the inside of the receiving groove. An adjusting screw is rotatably connected to the side of the storage groove away from the support plate through a bearing, and the stop block is threadedly connected to the outside of the adjusting screw, and the end of the adjusting screw away from the support plate extends to the outside of the support column.

[0017] As an improvement, the end of the adjusting screw rod away from the support plate is fixedly connected to the adjusting dial, and scale grids are provided on one side of the adjusting dial and one side of the support column.

[0018] As an improvement, a plurality of raised blocks are fixedly connected to both sides of the lower end of the support plate and the inclined surface of the trapezoidal block close to the support plate.

[0019] As an improvement, both ends of the semi-spiral groove are provided with bell mouths for facilitating the sliding in of the guide block.

[0020] Compared with the existing technology, the advantages of the present invention are: 1. The present invention sets an arc groove, a push block, a guide block and a semi-spiral groove. The support plate rotates with the chain, and the push block moves into the arc groove. At this time, the guide block corresponds to the semi-spiral groove at the corresponding position. As the support plate continues to rotate, the guide block rotates accordingly under the guidance of the arc groove and gradually moves toward the direction close to the support plate. The semi-spiral groove synchronously limits the position of the guide block, so that the support plate always remains in a vertical state, avoiding large vibrations at the upper end of the frame, improving the overall stability and reliability of the device during operation, and ensuring smooth operation of the device during the seedling cultivation process.

[0021] 2. The present invention arranges a stopper and a trapezoidal block in the device, and drives the support plate to flip through the thrust when the trapezoidal block contacts the stopper, so as to discharge the excess nutrient solution in the support plate. The discharged nutrient solution is collected by a collection box installed on the frame, thereby solving the problem of water accumulation in the support plate being difficult to discharge in the prior art, avoiding the roots of the seedlings from being soaked in water for a long time, preventing the rot of the roots of the seedlings, ensuring the healthy growth of the seedlings, and improving the survival rate of the seedlings.

[0022] 3. When the trapezoidal block is pushed by the block to contact the lower ends of both sides of the support plate and continues to move, the interaction of the raised blocks drives the support plate to vibrate slightly, and the nutrient solution remaining on the fruit tree seedlings is shaken off by the slight vibration, thereby avoiding the nutrient solution remaining on the leaf surface for a long time and burning the seedling leaves due to excessive concentration after evaporation; at the same time, the vibration of the support plate of the present invention is different from the abnormal shaking in the prior art in the following ways: first, the present invention only shakes the support plate, and the structure connected to the chain does not shake, so it will not cause the balance of the overall structure; secondly, the vibration of the present application is the shaking caused by the cooperation of the raised blocks, and the support plate vibrates within a preset amplitude due to the restoring action of the reset torsion spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] in: Figure 1 It is a three-dimensional schematic diagram of the device of the present invention.

[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0026] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0027] Figure 4 FIG. 4 is a diagram of an arc groove according to the present invention.

[0028] Figure 5 It is a three-dimensional enlarged view of part of the structure of the present invention.

[0029] Figure 6 This is a schematic diagram of the separation of the return spring and the shaft rod of the present invention.

[0030] Figure 7 It is a cross-sectional view of the push block of the present invention.

[0031] Figure 8 It is a schematic diagram of a partial cross-section of the support column of the present invention.

[0032] Figure 9 Exploded view of the dither structure of the present invention.

[0033] Figure 10 1 is an exploded view of the connection mechanism of the present invention.

[0034] Figure 11 for Figure 7 Enlarged view of point C in the middle.

[0035] In the figure: 1. Frame; 11. Support plate; 12. Driving member; 13. Support rod; 2. Shaft; 21. Push block; 22. Arc groove; 23. Semi-spiral groove; 24. Reset groove; 25. Guide block; 251. Roller; 26. Reset spring; 3. Connecting mechanism; 31. Connecting plate; 32. Connecting shaft; 33. Reset torsion spring; 4. Shaking structure; 41. Fixed frame; 42. Spring rod; 43. Connecting frame; 44. Trapezoidal block; 45. Stop block; 5. Support column; 51. Storage slot; 52. Adjusting screw rod; 53. Adjusting turntable; 6. Drain outlet; 61. Water guide bar; 7. Raised block; 8. Bell mouth. DETAILED DESCRIPTION

[0036] 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.

[0037] Reference Figure 1A fruit tree seedling raising device includes a frame 1 serving as the supporting framework of the entire device, a collecting box installed inside the frame 1, a plurality of support trays 11 for placing seedling trays installed inside the frame 1, and a driving member 12 for driving the device installed inside the frame 1. The driving member 12 drives a transmission shaft to rotate through a motor, and the transmission shaft drives two sprockets on the lower side to rotate. Through the cooperation of the sprockets and the chain, the support trays 11 are driven to perform circular motion. A support rod 13 is installed on the outside of the chain, and the support rod 13 is used to drive the support trays 11 to move. Two adjacent support rods 13 are staggered and overlapped at one end away from the chain, and the support rod 13 is connected to the end of the chain for rotation. A triangle is formed between the two support rods 13 and the chain to keep the support trays 11 stable during movement.

[0038] Reference Figure 6 One end of the support rod 13 is rotatably connected to the shaft rod 2, the shaft rod 2 is cylindrical, and a push block 21 is installed at the end of the shaft rod 2 away from the support disk 11. The other end of the shaft rod 2 is connected to the support disk 11 through a connecting mechanism 3. The shaft rod 2 can be kept sliding inside the push block 21 by plugging. The cylindrical shape can ensure that the shaft rod 2 can rotate inside the push block 21.

[0039] Reference Figure 4 Arc grooves 22 cooperating with the push block 21 are symmetrically installed at the upper and lower ends of the frame 1. The push block 21 is slidably connected to the inside of the arc groove 22. The inner wall of the arc groove 22 that contacts the end face of the push block 21 is inclined. The arc groove 22 gradually tilts toward the side closer to the support plate 11 from one end to the other end relative to the moving direction of the support plate 11. The rotation of the push block 21 is limited and adjusted by the inner wall of the arc groove 22.

[0040] Reference Figure 7 and Figure 11 Two semi-spiral grooves 23 arranged symmetrically with respect to the center are opened inside the push block 21, and a reset groove 24 is opened at the intersection of the two semi-spiral grooves 23. Two guide blocks 25 that slide with the reset groove 24 are set on the outside of the shaft 2, and the guide blocks 25 are reset through the reset groove 24.

[0041] The support plate 11 rotates with the chain, and the push block 21 moves into the arc groove 22. At this time, the guide block 25 corresponds to the semi-spiral groove 23 at the corresponding position. As the support plate 11 continues to rotate, the guide block 25 rotates accordingly under the guidance of the arc groove 22 and gradually moves toward the direction close to the support plate 11. The semi-spiral groove 23 synchronously limits the position of the guide block 25, so that the support plate 11 always remains in a vertical state, avoiding large vibrations at the upper end of the frame 1, reducing the risk of seedlings falling due to vibrations of the device, and improving the overall stability and reliability of the device during operation.

[0042] Reference Figure 6A reset spring 26 is installed on the side of the push block 21 close to the support plate 11 for resetting the guide block 25 after the push block 21 is separated from the arc groove 22. The reset spring 26 is sleeved on the outside of the shaft 2.

[0043] Reference Figure 7 and Figure 11 A roller 251 is rotatably connected to the outside of the guide block 25 to reduce friction between the guide block 25 and the semi-helical groove 23 and maintain stability during operation.

[0044] Both ends of the semi-spiral groove 23 are provided with bell mouths 8 for the guide block 25 to slide into.

[0045] Reference Figure 9 The connecting mechanism 3 includes a connecting plate 31 fixedly connected to the side of the shaft 2 close to the support plate 11. The connecting plate 31 is rotatably connected to the side of the support plate 11 through the connecting shaft 32. A return torsion spring 33 for resetting the support plate 11 is sleeved on the outside of the connecting shaft 32. The two ends of the return torsion spring 33 are respectively inserted into the wall of the support plate 11 and the wall of the connecting plate 31. The connection shaft 32 ensures that the support plate 11 can rotate. By installing the return torsion spring 33, after the support plate 11 rotates, the elastic force of the return torsion spring 33 is used to reset the support plate 11 to a balanced position, thereby maintaining the stability of the support plate 11 during movement.

[0046] A shaking structure 4 is installed at the lower end of the connecting plate 31, and the shaking structure 4 extends to the lower side of the front end of the guide support plate 11. The shaking structure 4 includes a fixed frame 41 fixedly connected to the lower end of the connecting plate 31, and a connecting frame 43 is slidably connected inside the fixed frame 41 through a spring rod 42. A trapezoidal block 44 is installed on the upper part of the end of the connecting frame 43 close to the frame 1, and a stopper 45 cooperating with the trapezoidal block 44 is installed on the top of the frame 1 through the support column 5. The thrust when the trapezoidal block 44 contacts the stopper 45 drives the support plate 11 to flip over, and the excess nutrient solution in the support plate 11 is discharged, which solves the problem of water accumulation in the support plate 11 being difficult to discharge in the prior art, avoids the roots of the seedlings from being soaked in water for a long time, prevents the roots of the seedlings from rotting, and ensures the healthy growth of the seedlings.

[0047] Reference Figure 5 Drain ports 6 for discharging excess nutrient solution inside the support tray 11 are provided on both sides of the rear end of the support tray 11, and a water guide bar 61 for improving drainage efficiency is installed at the bottom of the rear end of the support tray 11. After the support tray 11 is flipped over, the internal nutrient solution is discharged through the drain ports 6 under the guidance of the water guide bar 61, and the discharged nutrient solution is collected by a collection box installed on the rack 1 to prevent waste of nutrient solution.

[0048] Reference Figure 8A receiving groove 51 is provided on the side where the support columns 5 are close to each other, for receiving the stopper 45 after adjusting the stopper 45. The stopper 45 is slidably connected to the inside of the receiving groove 51, and an adjusting screw rod 52 is installed on the side of the receiving groove 51 away from the support plate 11. The stopper 45 is threadedly connected to the outside of the adjusting screw rod 52, and one end of the adjusting screw rod 52 extends to the outside of the support column 5 away from the support plate 11. The connection between the adjusting screw rod 52 and the support column 5 is rotatably connected through a bearing. The position of the stopper 45 is adjusted by rotating the adjusting screw rod 52, and the inclination angle of the support plate 11 is controlled by moving the position of the stopper 45.

[0049] An adjusting dial 53 for facilitating the rotation of the adjusting screw 52 is fixedly connected to the end of the adjusting screw 52 away from the support plate 11 , and scale grids for indicating the position of the stopper 45 are provided on one side of the adjusting dial 53 and one side of the support column 5 .

[0050] By adjusting the turntable 53 to effortlessly rotate the adjusting screw 52, ​​the adjusting screw 52 drives the block 45 threadedly connected to its outside to move linearly under the restriction of the storage groove 51. By adjusting the position of the block 45, the distance that the trapezoidal block 44 is pushed by the block 45 is controlled, thereby adjusting the flipping angle of the support plate 11.

[0051] Reference Figure 9 A number of raised blocks 7 are fixedly connected on both sides of the lower end of the support plate 11 and on the inclined surface of the trapezoidal block 44 close to the support plate 11. When the trapezoidal block 44 is pushed by the stop block 45 to contact the lower ends of both sides of the support plate 11 and continues to move, the raised blocks 7 interact with each other to drive the support plate 11 to vibrate slightly, and the slight vibration is used to shake off the residual nutrient solution on the fruit tree seedlings, thereby preventing the nutrient solution from remaining on the leaves for a long time and burning the seedling leaves due to excessive concentration after evaporation.

[0052] The present invention also provides a method for raising fruit tree seedlings, comprising the following steps: S1. After placing a seedling tray containing fruit tree seedlings within a support tray 11, a drive member 12 drives a transmission shaft via a motor, which in turn drives two sprockets on the lower side, which in turn drive a chain.

[0053] S2. As support disc 11 rotates with the chain, push block 21 moves into arc groove 22. Guide block 25 now aligns with the corresponding semi-spiral groove 23. As support disc 11 continues to rotate, guided by arc groove 22, guide block 25 rotates accordingly and, driven by the inclined inner wall of arc groove 22, gradually moves closer to support disc 11. Semi-spiral groove 23 simultaneously limits the position of guide block 25, ensuring that support disc 11 remains vertical. This prevents significant vibration from occurring at the upper end of frame 1, reduces the risk of seedlings falling due to vibration, and improves the overall stability and reliability of the device during operation.

[0054] S3. When the support plate 11 moves to the rear side of the upper end of the device and moves vertically downward, the push block 21 slides out of the arc groove 22. The return spring 26 pushes the push block 21 away from the support plate 11. The guide block 25 slides to the side of the return groove 24 close to the support plate 11 to reset.

[0055] S4. When the support plate 11 moves vertically upward at the lower front portion and the push block 21 slides inside the arc groove 22, the thrust of the trapezoidal block 44 and the stop block 45 drives the support plate 11 to flip, thereby discharging the excess nutrient solution in the support plate 11. When the trapezoidal block 44 and the stop block 45 push and contact, the raised block 7 interacts with each other, driving the support plate 11 to vibrate slightly. The slight vibration shakes off the residual nutrient solution on the fruit tree seedlings, thus preventing the nutrient solution from remaining on the leaves for a long time due to excessive concentration after evaporation. The position of the trapezoidal block 44 is adjusted by rotating the adjusting screw 52 with ease through the adjusting dial 53. The adjusting screw 52 drives the block 45 threadedly connected to its outside to move linearly under the restriction of the receiving groove 51, thereby adjusting. When the support plate 11 is tilted and the trapezoidal block 44 is disengaged from the push of the block 45, the position of the trapezoidal block 44 is reset by the spring rod 42, and the position of the support plate 11 is reset under the action of the elastic force of the reset torsion spring 33 in the connecting mechanism 3, thereby keeping the support plate 11 stable when it rises.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0058] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0059] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fruit tree seedling raising device, comprising a frame, a plurality of support plates mounted inside the frame, a driving member mounted inside the frame and driven by a sprocket chain, a support rod mounted outside the chain, and characterized in that: One end of the support rod is rotatably connected to a shaft rod, and the end of the shaft rod away from the support plate is matched with a push block, and arc grooves that cooperate with the push block are symmetrically installed on the upper and lower ends of the frame, and the other end of the shaft rod is connected to the support plate; The inner wall of the arc groove that contacts the end face of the push block is inclined, and the inner wall of the arc groove gradually tilts toward the side closer to the support plate from one end to the other end relative to the moving direction of the support plate. The rotation of the push block is limited and adjusted by the inner wall of the arc groove; The interior of the push block is provided with two semi-spiral grooves arranged symmetrically with respect to the center. A reset groove is provided at the intersection of the two semi-spiral grooves. Two guide blocks that slide in cooperation with the reset grooves are provided on the outer side of the shaft. The support plate rotates with the chain, and the push block moves into the arc groove. At this time, the guide block corresponds to the semi-spiral groove at the corresponding position. As the support plate continues to rotate, the guide block rotates accordingly under the guidance of the arc groove and gradually moves toward the direction of the support plate. The semi-spiral grooves synchronously limit the position of the guide block, so that the support plate always remains in a vertical state. A return spring is provided on one side of the push block close to the support plate, and the return spring is sleeved on the outside of the shaft.

2. A fruit tree seedling raising device according to claim 1, characterized in that: The guide block is externally rotatably connected with a roller, which is used to reduce the friction between the guide block and the semi-helical groove.

3. The fruit tree seedling raising device according to claim 1, characterized in that: The shaft is connected to the support disk through a connecting mechanism, which includes a connecting plate fixedly connected to the end of the shaft away from the push block. The connecting plate is rotatably connected to the side of the support disk through a connecting shaft, and a return torsion spring is sleeved on the outside of the connecting shaft. The two ends of the return torsion spring are respectively inserted into the support disk and the connecting plate.

4. A fruit tree seedling raising device according to claim 3, characterized in that: The lower end of the connecting plate is connected to a shaking structure, and the shaking structure extends to the lower side of the front end of the supporting plate. The shaking structure includes a fixed frame fixedly connected to the lower end of the connecting plate, and a connecting frame is slidably connected to the fixed frame through a spring rod. A trapezoidal block is installed on the upper part of one end of the connecting frame close to the frame, and a stopper that cooperates with the trapezoidal block is installed on the top of the frame through a supporting column. When the trapezoidal block contacts the stopper, it drives the supporting plate to flip, so that excess nutrient solution is discharged.

5. The fruit tree seedling raising device according to claim 4, characterized in that: Drainage ports are provided on both sides of the rear end of the support plate, and a water guide bar is provided on the bottom of the rear end of the support plate. When the trapezoidal block contacts the stop block and drives the support plate to flip, the push block slides inside the arc groove to ensure the stability of the support plate when flipping.

6. The fruit tree seedling raising device according to claim 4, characterized in that: The support columns are provided with a receiving groove on one side close to each other, and a stop block is slidably connected to the inside of the receiving groove. An adjusting screw rod is rotatably connected to the side of the receiving groove away from the support plate through a bearing. The stop block is threadedly connected to the outside of the adjusting screw rod, and the end of the adjusting screw rod away from the support plate extends to the outside of the support column.

7. The fruit tree seedling raising device according to claim 6, characterized in that: The end of the adjusting screw rod away from the supporting plate is fixedly connected to the adjusting dial, and one side of the adjusting dial and one side of the supporting column are both provided with scale grids.

8. The fruit tree seedling raising device according to claim 4, characterized in that: Both sides of the lower end of the support plate and the inclined surface of the trapezoidal block close to the support plate are fixedly connected with a plurality of protruding blocks.

9. The fruit tree seedling raising device according to claim 1, characterized in that: Both ends of the semi-spiral groove are provided with bell mouths for the guide block to slide in easily.

10. A method for raising fruit tree seedlings, using the fruit tree seedling raising device according to claim 4, comprising the following steps: S1. Place the seedling tray containing the fruit tree seedlings inside the support tray, and the drive element drives the chain to operate. S2. The support plate rotates with the chain, and the push block moves into the arc groove. At this point, the guide block aligns with the corresponding semi-spiral groove. As the support plate continues to rotate, the guide block, guided by the arc groove, rotates with it and gradually moves closer to the support plate. The semi-spiral groove simultaneously limits the position of the guide block, ensuring that the support plate always remains vertical. S3. When the support plate moves to the rear side of the upper end of the device and moves vertically downward, the push block slides out of the arc groove. The return spring pushes the push block away from the support plate, and the guide block slides to the side of the return groove closest to the support plate to reset. S4. When the support tray moves vertically upward at the lower front portion, the trapezoidal block is pushed by the stopper to slide toward the side of the support tray. When the trapezoidal block contacts the lower end of one side of the support tray, the trapezoidal block continues to move, tilting the support tray through its trapezoidal structure, thereby discharging excess nutrient solution from the support tray.

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