Seedling righting device for navel orange planting
By designing an arc-shaped straightening block and a retractable and adjustable bracket mechanism, combined with an air bag and a spraying mechanism, the problems of uneven support and cumbersome operation of traditional navel orange seedling straightening devices are solved, uniform support and correction of the seedlings are achieved, and the healthy growth of the seedlings is promoted.
Patent Information
- Application Number
- CN202511063853.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2025-09-26
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The traditional method of straightening navel orange seedlings has problems such as uneven support, cumbersome operation and lack of active correction ability, which causes the branches of the seedlings to tilt or bend, affecting the health of the plants and fruit yield.
A seedling straightening device is designed, which includes an arc-shaped straightening block, a correction mechanism and a retractable and adjustable bracket mechanism. The arc-shaped straightening block is expanded and closed to provide uniform support. An air bag and a fluid input tube are used to apply uniform pressure on the bent part for correction. Precise pesticide application and water replenishment are achieved through a spraying mechanism.
It achieves uniform support and correction of seedlings, avoids damage caused by forced manual correction, improves operational convenience and liquid medicine utilization, and promotes the healthy growth of seedlings.
Smart Images
Figure CN120694101A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of plant planting, and in particular to a seedling straightening device for navel orange planting. Background Art
[0002] During navel orange cultivation, upright growth of seedlings is a key factor in ensuring healthy trees and high fruit yields. However, due to factors such as wind, gravity, loose soil, or uneven growth, seedling branches can easily tilt or bend. If not corrected promptly, this can lead to stunted plant development, reduced stress resistance, and even compromised fruit quality later in life.
[0003] Traditional methods of straightening mostly use bamboo poles or wooden sticks to tie and fix, which has the following defects:
[0004] First, there is the defect of uneven support: the hard support has a small contact area with the branches, which can easily cause local compression, damage the bark, and even hinder nutrient transport;
[0005] Secondly, there is the disadvantage of inconvenient adjustment: as the seedlings grow, the support structure needs to be frequently replaced or adjusted, which is cumbersome and easy to interfere with the root system;
[0006] Furthermore, there is a lack of the ability to actively correct bent branches.
[0007] Based on this, it is necessary to design a navel orange seedling straightening device that integrates straightening, correction and height adjustment to overcome the above-mentioned defects. Summary of the Invention
[0008] The technical solution is: a seedling straightening device for navel orange planting, including an arc-shaped straightening block, a correction mechanism and a telescopic adjustable bracket mechanism. Multiple arc-shaped straightening blocks are connected end to end by rotation and form a circle around the branches of the seedlings. The rotation axis of the rotating pair formed by the two arc-shaped straightening blocks connected end to end is parallel to the central axis of the circle enclosed by the multiple arc-shaped straightening blocks. Each arc-shaped straightening block can rotate relative to each other around its own rotating pair between an expanded state and a closed circular state. A correction mechanism for correcting the seedlings is provided on the arc-shaped straightening block. The outer wall of the arc-shaped straightening block is rotatably connected to a telescopic adjustable bracket mechanism for providing support therefor. The telescopic adjustable bracket mechanism is connected to a fixed frame, and a fixed claw is slidably connected to the fixed frame.
[0009] Furthermore, the correction mechanism includes a fluid storage box, a J-shaped rod, a lower pressure plate, a piston plate, a fluid input pipe, an airbag, a vertical rod, a first limit rod and a limit block. A fluid storage box is provided below the outer wall of the arc-shaped straightening block, and a piston plate is slidingly provided in the fluid storage box. The bottom of the piston plate is connected to the lower pressure plate through a J-shaped rod, and a vertical rod is rotatably provided on the lower pressure plate. The vertical rod is slidably connected to the limit block installed on the upper part of the outer wall of the arc-shaped straightening block, and a first limit rod is movably matched with a first limit groove evenly spaced on the limit block at the upper end of the vertical rod. An airbag is provided on the inner side of the arc-shaped straightening block, and the airbag is connected to the fluid storage box through the fluid input pipe.
[0010] Furthermore, the fluid input tube is a retractable hose.
[0011] Furthermore, the righting device also includes a spraying mechanism, which includes an infusion tube arranged on the arc-shaped righting block, adjacent infusion tubes are connected end to end, at least one infusion tube is connected to an injection tube, and the infusion tube is connected to a nozzle, which is installed on the inner wall of the arc-shaped righting block.
[0012] Furthermore, the telescopically adjustable bracket mechanism includes an upper bracket, a telescopic bracket and a lower bracket. The upper bracket is hinged to the outer wall of the arc-shaped straightening block, the end of the upper bracket away from the arc-shaped straightening block is hinged to the telescopic bracket, and the end of the telescopic bracket away from the upper bracket slides into the inner cavity of the lower bracket.
[0013] Furthermore, the telescopic bracket is provided with insertion holes at even intervals along its axial direction, and an insertion rod is slidably provided on the lower bracket, and the insertion rod is plugged into and matched with the insertion hole to fix the telescopic bracket on the lower bracket.
[0014] Furthermore, the righting device also includes a U-shaped frame and a mounting plate. The lower end of the lower bracket is hinged to the U-shaped frame, the U-shaped frame is slidably connected to the mounting plate, and the mounting plate is fixedly connected to the fixing frame.
[0015] Furthermore, the present straightening device also includes a limit frame, a second limit rod, a connecting rod and a limit plate. The lower part of the lower bracket is threadedly connected to the limit plate. An annular groove is provided at the bottom of the limit plate. No less than two connecting rods are slidably arranged in the annular groove. The connecting rods slide through the U-shaped frame and the lower ends are jointly connected to the limit frame. The limit frame is provided under the mounting plate. The mounting plate is symmetrically provided with second limit grooves on both sides with the limit frame as the center. The limit frame is provided with a second limit rod that can be detachably matched with the second limit groove.
[0016] Furthermore, the straightening device also includes an expansion frame and a shielding member. The expansion frame is rotatably provided on the top of the arc-shaped straightening block. Mounting grooves are provided on both longitudinal sides of the expansion frame, and the shielding member is detachably installed in the mounting grooves.
[0017] Furthermore, the shielding member is a grid shielding curtain.
[0018] The beneficial effects are: 1. By expanding and closing the arc-shaped straightening block, a circular structure is formed that is easy to insert the seedlings and enclose, thereby fitting the branches and trunks to provide uniform support, effectively preventing the seedlings from tilting due to wind, gravity or uneven growth; the height of the arc-shaped straightening block can be quickly adjusted through the telescopic adjustment of the retractable bracket mechanism to ensure that the arc-shaped straightening block is always in the best supporting position, meeting the different needs of the seedlings from planting to growth period, and avoiding frequent replacement of support devices.
[0019] 2. The piston plate is driven by the lower pressure plate to squeeze the fluid (liquid or gas) into the airbag, causing the airbag to expand and apply uniform pressure to the bent part, gradually correcting the seedling posture and avoiding damage caused by artificial straightening.
[0020] 3. The spraying mechanism evenly sprays the liquid medicine or nutrient solution along the inner wall of the straightening block to achieve directional application of medicine, reduce waste and improve the utilization rate of medicine efficacy. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.
[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the arc-shaped straightening block, the correction mechanism and the spraying mechanism of the present invention.
[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the arc-shaped straightening block after it is unfolded.
[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the arc-shaped straightening block and the correction mechanism of the present invention.
[0025] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the upper bracket, telescopic bracket and lower bracket of the present invention.
[0026] Figure 6 It is a partial three-dimensional structural diagram of the lower bracket, mounting plate, fixing frame and fixing claw of the present invention.
[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the lower bracket, U-shaped bracket, mounting plate and limiting bracket of the present invention.
[0028] Figure 8 It is a partial three-dimensional structural diagram of the lower bracket, limiting plate, U-shaped frame, limiting frame and other components of the present invention.
[0029] Figure 9 It is a partial three-dimensional structural diagram of the arc-shaped straightening block, the unfolding frame and the shielding member of the present invention.
[0030] Figure numbers: 1. Arc-shaped straightening block, 2. Correction mechanism, 21. Fluid storage box, 22. J-shaped rod, 23. Lower pressure plate, 24. Piston plate, 25. Fluid input tube, 26. Airbag, 27. Vertical rod, 271. First limiting rod, 28. Limiting block, 281. First limiting groove, 3. Spraying mechanism, 31. Infusion tube, 32. Nozzle, 33. Injection tube, 4. Upper bracket, 5. Telescopic bracket, 51. Jack, 6. Lower bracket, 61. Insertion rod, 7. U-shaped frame, 71. Mounting plate, 711. Second limiting groove, 8. Fixed frame, 81. Fixed claw, 9. Limiting frame, 91. Second limiting rod, 92. Connecting rod, 93. Limiting plate, 10. Expanding frame, 1001. Mounting groove, 11. Shielding member. DETAILED DESCRIPTION
[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings.
[0032] Embodiment: A seedling straightening device for navel orange planting, such as Figures 1-9 As shown, it includes an arc-shaped straightening block 1, a correction mechanism 2 and a telescopically adjustable bracket mechanism. Multiple arc-shaped straightening blocks 1 are connected head to tail by a hinged connection. The number of arc-shaped straightening blocks 1 is not less than two, and can be appropriately increased according to the design and actual use. The arc-shaped straightening blocks 1 are connected head to tail to form a circle around the branches of the seedlings, and are close to the branches of the seedlings, so as to provide uniform support for the seedlings. The rotation axis of the rotating pair formed by the two arc-shaped straightening blocks 1 connected head to tail is parallel to the central axis of the circle enclosed by the multiple arc-shaped straightening blocks 1. Each arc-shaped straightening block 1 can rotate relative to each other between the expanded state and the closed circular state around its own rotating pair. The arc-shaped straightening block 1 is convenient for inserting seedlings when displayed, and forms a circular structure after closing to fit the branches and provide uniform support, thereby effectively preventing the seedlings from tilting due to wind, gravity or uneven growth; the arc-shaped straightening block 1 is provided with a correction mechanism 2 for correcting the seedlings, and the outer wall of the arc-shaped straightening block 1 is rotatably connected to a telescopic adjustable bracket mechanism for providing support therefor, and the telescopic adjustable bracket mechanism is connected to a fixing frame 8, and a fixing claw 81 is slidably connected to the fixing frame 8. The fixing claw 81 is used to insert into the ground and then fix the fixing frame 8, thereby fixing the telescopic adjustable bracket mechanism, thereby ensuring the stability of the straightening device.
[0033] When in use, first, the arc-shaped straightening block 1 is rotated and unfolded with its respective rotating pairs to facilitate the insertion of the seedlings; after the seedlings are inserted, the arc-shaped straightening block 1 is rotated and closed with its respective rotating pairs to form a circular structure, thereby fitting the seedling structure, thereby providing uniform support for the seedlings and preventing the seedlings from tilting.
[0034] like Figure 2 and Figure 4As shown, the correction mechanism 2 includes a fluid storage box 21, a J-shaped rod 22, a lower pressure plate 23, a piston plate 24, a fluid input tube 25, an air bag 26, a vertical rod 27, a first limit rod 271 and a limit block 28. A fluid storage box 21 is provided below the outer wall of the arc-shaped straightening block 1. The fluid storage box 21 is a closed box in which gas is stored. A piston plate 24 is slidably provided in the fluid storage box 21. The bottom of the piston plate 24 is connected to the bottom of the piston plate 24 by a pair of J-shaped rods 22. There is a lower pressure plate 23, a J-shaped rod 22 slides through the fluid storage box 21, and the fluid storage box 21 is sealed. The lower pressure plate 23 and the fluid storage box 21 are both arc-shaped settings adapted to the outer wall of the arc-shaped straightening block 1. A pair of vertical rods 27 are rotatably provided on the lower pressure plate 23. The vertical rods 27 are slidably connected to the limit blocks 28 installed on the upper part of the outer wall of the arc-shaped straightening block 1. The upper ends of the vertical rods 27 are provided with first and second limit blocks 28 evenly spaced. A limiting groove 281 is engaged with the first limiting rod 271. By inserting the first limiting rod 271 into different first limiting grooves 281, the height of the vertical rod 27, the lower pressure plate 23 and the piston plate 24 is adjusted, and then the output air pressure of the fluid storage box 21 is adjusted. An air bag 26 is provided on the inner side of the arc-shaped straightening block 1. The air bag 26 fits the navel orange trunk. The air bag 26 is made of a soft material that is not easily scratched. This material is conducive to its adaptation to different trunk shapes. At the same time, the soft material can also avoid rigid contact with the trunk and hinder the growth of the trunk. The air bag 26 is connected to the fluid storage box 21 through the fluid input pipe 25. The fluid input pipe 25 is a retractable hose. When correcting the bent trunk, the piston plate 24 is driven by the lower pressure plate 23 to squeeze the fluid (preferably gas) into the air bag 26, so that the air bag 26 expands and applies uniform pressure to the bent part, thereby gradually correcting the posture of the seedling and avoiding damage caused by artificial forced straightening.
[0035] When the branches of the seedlings are bent, the operator can pull up the vertical rod 27 to drive the lower pressure plate 23 to move upward, and push the piston plate 24 to move upward in the fluid storage box 21 through the J-shaped rod 22. The upward movement of the piston plate 24 squeezes the fluid (such as liquid or gas) in the fluid storage box 21. Under the squeezing action of the piston plate 24, the fluid enters the air bag 26 through the fluid input pipe 25, causing the air bag 26 to expand, thereby applying uniform pressure to the bent part of the seedling, prompting it to gradually resume upright growth; when the piston plate 24 moves up to a suitable position, the vertical rod 27 is rotated so that the first limiting rod 271 is screwed into the first limiting groove 281 corresponding to the limiting block 28, thereby limiting the vertical rod 27, thereby fixing the lower pressure plate 23 and the piston plate 24, and the first limiting rod 271 is clamped into the first limiting groove 281 of different heights to achieve the effect of controlling the pressure of the air bag 26, thereby avoiding excessive correction and damaging the seedlings.
[0036] like Figure 1 and Figure 3As shown, the straightening device also includes a spraying mechanism 3, which includes an infusion tube 31 arranged on the arc-shaped straightening block 1, and adjacent infusion tubes 31 are connected end to end. The two ends of the infusion tube 31 are set with one end large and the other end small, and the small end can be inserted into the large end, so that the infusion tubes 31 between adjacent arc-shaped straightening blocks 1 are connected end to end, at least one infusion tube 31 is connected to an injection tube 33, and a nozzle 32 is connected to the infusion tube 31. The nozzle 32 is installed on the inner wall of the arc-shaped straightening block 1, and the nozzle 32 is used to spray liquid medicine or nutrient solution on the tree trunk to ensure that the liquid medicine directly acts on the target part, so as to achieve the effect of precise application of medicine or water replenishment, and is suitable for preventing and controlling pests and diseases or promoting local growth.
[0037] When it is necessary to apply medicine or replenish water to the branches of the seedlings, the external medicine or nutrient solution supply system is connected through the injection tube 33, and the medicine is evenly sprayed onto the branches of the seedlings through the infusion tube 31 and the nozzle 32, so as to achieve precise application of medicine or replenish water and promote the healthy growth of the seedlings.
[0038] like Figure 1 and Figure 5 As shown, the telescopically adjustable bracket mechanism includes an upper bracket 4, a telescopic bracket 5 and a lower bracket 6. The upper bracket 4 is hinged to the outer wall of the arc-shaped straightening block 1, and the end of the upper bracket 4 away from the arc-shaped straightening block 1 is hinged to the telescopic bracket 5. The end of the telescopic bracket 5 away from the upper bracket 4 slides into the inner cavity of the lower bracket 6.
[0039] like Figure 5 As shown, the telescopic bracket 5 is provided with insertion holes 51 evenly spaced along its axial direction, and an insertion rod 61 is slidably provided on the lower bracket 6. The insertion rod 61 is plugged into the insertion hole 51 to fix the telescopic bracket 5 on the lower bracket 6.
[0040] When it is necessary to adjust the height of the arc-shaped straightening block 1 to adapt to different stages of seedling growth, first pull out the insertion rod 61, then rotate the lower bracket 6 to pull out the telescopic bracket 5 from the lower bracket 6. At this time, unfold the multiple arc-shaped straightening blocks 1 that are connected end to end to form a circle, so that the height of the arc-shaped straightening block 1 on the navel orange trunk can be adjusted. After adjusting to the right position, the arc-shaped straightening blocks 1 are re-enclosed to form a circle; then the end of the telescopic bracket 5 away from the upper bracket 4 is reinserted into the inner cavity of the lower bracket 6, and the telescopic bracket 5 is re-fixed on the lower bracket 6 by the cooperation of the insertion rod 61 and the socket 51, thereby adjusting the height of the arc-shaped straightening block 1 on the navel orange trunk.
[0041] like Figure 6 As shown, the straightening device also includes a U-shaped frame 7 and a mounting plate 71. The lower end of the lower bracket 6 is hinged to the U-shaped frame 7. A slide groove is provided on the top surface of the mounting plate 71. The lower end of the U-shaped frame 7 is slidably arranged in the slide groove on the top surface of the mounting plate 71. The mounting plate 71 is fixedly connected to the fixing frame 8. The fixing frame 8 and the mounting plate 71 form a triangular structure to improve stability.
[0042] like Figure 7 and Figure 8 As shown, the straightening device also includes a limit frame 9, a second limit rod 91, a connecting rod 92 and a limit plate 93. The lower part of the lower bracket 6 is threadedly connected to the limit plate 93. The limit plate 93 is arranged above the U-shaped frame 7. An annular groove is provided at the bottom of the limit plate 93. No less than two connecting rods 92 are slidably provided in the annular groove. The connecting rods 92 are symmetrically arranged on both sides of the U-shaped frame 7. The connecting rods 92 slide through the U-shaped frame 7 and the lower ends are connected to the limit frame 9. The limit frame 9 is arranged below the mounting plate 71. The mounting plate 71 is provided with a slot for the connecting rod 92 to pass through. Through slot, the mounting plate 71 is symmetrically provided with second limiting slots 711 on both sides with the limiting frame 9 as the center, and the second limiting slots 711 are symmetrically arranged on both sides with the through slot as the center, and the second limiting slots 711 are vertically connected to the through slot, and the limiting frame 9 is provided with a second limiting rod 91 that is detachably matched with the second limiting slot 711, and the second limiting rod 91 is clamped in the second limiting slot 711, and the limiting frame 9 is fixed. At this time, the U-shaped frame 7 cannot move horizontally along the sliding groove on the top surface of the mounting plate 71, thereby fixing the lower end position of the lower bracket 6.
[0043] When it is necessary to adjust the position of the U-shaped frame 7 on the mounting plate 71, the limit plate 93 is rotated to move down, and the limit plate 93 drives the limit frame 9 to move downward through the connecting rod 92, thereby making the second limit rod 91 away from the second limit slot 711, thereby releasing the fixed limit of the U-shaped frame 7. At this time, by driving the U-shaped frame 7 to slide along the top of the mounting plate 71, the specific position of the U-shaped frame 7 on the mounting plate 71 is adjusted. When the U-shaped frame 7 is adjusted to a suitable position, the limit plate 93 is rotated in the opposite direction, and the limit plate 93 drives the limit frame 9 to move up through the connecting rod 92, thereby making the second limit rod 91 stuck in the second limit slot 711, thereby fixing the limit frame 9 and the U-shaped frame 7, thereby meeting the adjustment needs of the telescopically adjustable bracket mechanism, and then achieving the need to adjust the height of the arc straightening block 1.
[0044] like Figure 1 and Figure 9 As shown, the straightening device also includes an unfolding frame 10 and a shielding member 11. The unfolding frame 10 is rotatably provided on the top of the arc-shaped straightening block 1. The unfolding frame 10 is provided with mounting grooves 1001 on both longitudinal sides. The shielding member 11 is detachably installed in the mounting groove 1001. The shielding member 11 is a mesh shielding curtain. The mesh shielding curtain ensures ventilation and light transmission while avoiding excessive shading that affects photosynthesis.
[0045] When the shielding member 11 is needed, first rotate the unfolding frame 10 outward to an appropriate angle with the hinge between it and the arc-shaped straightening block 1 as the center, and then detachably install the two ends of the shielding member 11 on the unfolding frame 10 along the installation groove 1001, thereby providing shielding protection above the rhizomes of the seedlings, preventing the rhizomes of the seedlings from being exposed to strong light, and also preventing the soil at the rhizomes of the seedlings from drying out due to strong sunlight.
[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A seedling straightening device for navel orange planting, characterized in that: The invention comprises an arc-shaped straightening block (1), a correction mechanism (2) and a telescopically adjustable support mechanism, wherein a plurality of arc-shaped straightening blocks (1) are connected end to end by rotation and enclose a circle around the branches of the seedlings, the rotation axis of the rotation pair formed by the two arc-shaped straightening blocks (1) connected end to end by rotation is parallel to the central axis of the circle enclosed by the plurality of arc-shaped straightening blocks (1), and each arc-shaped straightening block (1) can rotate relative to each other between an expanded state and a closed circular state around its own rotation pair, a correction mechanism (2) for correcting the seedlings is provided on the arc-shaped straightening block (1), an outer wall of the arc-shaped straightening block (1) is rotatably connected to a telescopically adjustable support mechanism for providing support therefor, the telescopically adjustable support mechanism is connected to a fixing frame (8), and a fixing claw (81) is slidably connected to the fixing frame (8).
2. A seedling straightening device for navel orange planting according to claim 1, characterized in that: The correction mechanism (2) includes a fluid storage box (21), a J-shaped rod (22), a lower pressure plate (23), a piston plate (24), a fluid input tube (25), an air bag (26), a vertical rod (27), a first limiting rod (271) and a limiting block (28). The fluid storage box (21) is provided below the outer wall of the arc-shaped straightening block (1). The piston plate (24) is slidably provided in the fluid storage box (21). The bottom of the piston plate (24) is connected to the lower pressure plate (23) through the J-shaped rod (22). A vertical rod (27) is rotatably provided on the lower pressure plate (23), and the vertical rod (27) is slidably connected to a limit block (28) installed on the upper part of the outer wall of the arc-shaped straightening block (1). A first limit rod (271) is provided at the upper end of the vertical rod (27) and is movably matched with a first limit groove (281) evenly spaced on the limit block (28). An air bag (26) is provided on the inner side of the arc-shaped straightening block (1), and the air bag (26) is connected to the fluid storage box (21) through a fluid input pipe (25).
3. A seedling straightening device for navel orange planting according to claim 2, characterized in that: The fluid input pipe (25) is a retractable hose.
4. A seedling straightening device for navel orange planting according to claim 3, characterized in that: The straightening device further comprises a spraying mechanism (3), the spraying mechanism (3) comprising a liquid infusion tube (31) arranged on the arc-shaped straightening block (1), adjacent liquid infusion tubes (31) being connected end to end, at least one liquid infusion tube (31) being connected to a liquid injection tube (33), the liquid infusion tube (31) being connected to a nozzle (32), and the nozzle (32) being mounted on the inner wall of the arc-shaped straightening block (1).
5. The seedling straightening device for navel orange planting according to claim 1, characterized in that: The telescopically adjustable bracket mechanism comprises an upper bracket (4), a telescopic bracket (5) and a lower bracket (6), wherein the upper bracket (4) is hinged to the outer wall of the arc-shaped straightening block (1), an end of the upper bracket (4) away from the arc-shaped straightening block (1) is hinged to the telescopic bracket (5), and an end of the telescopic bracket (5) away from the upper bracket (4) slides and extends into the inner cavity of the lower bracket (6).
6. The seedling straightening device for navel orange planting according to claim 5, characterized in that: The telescopic bracket (5) is provided with insertion holes (51) spaced evenly along its axial direction. A plug rod (61) is slidably provided on the lower bracket (6). The plug rod (61) is plugged into and matched with the insertion hole (51) to fix the telescopic bracket (5) on the lower bracket (6).
7. The seedling straightening device for navel orange planting according to claim 6, characterized in that: The straightening device further comprises a U-shaped frame (7) and a mounting plate (71), the lower end of the lower bracket (6) is hinged to the U-shaped frame (7), the U-shaped frame (7) is slidably connected to the mounting plate (71), and the mounting plate (71) is fixedly connected to the fixing frame (8).
8. The seedling straightening device for navel orange planting according to claim 7, characterized in that: The straightening device further comprises a limiting frame (9), a second limiting rod (91), a connecting rod (92) and a limiting plate (93); the lower portion of the lower bracket (6) is threadedly connected to the limiting plate (93); an annular groove is provided at the bottom of the limiting plate (93); no less than two connecting rods (92) are slidably arranged in the annular groove; the connecting rods (92) slide through the U-shaped frame (7) and the lower ends thereof are connected to the limiting frame (9); the limiting frame (9) is provided below the mounting plate (71); the mounting plate (71) is symmetrically provided with second limiting grooves (711) on both sides centered on the limiting frame (9); and the limiting frame (9) is provided with a second limiting rod (91) that is detachably matched with the second limiting groove (711).
9. The seedling straightening device for navel orange planting according to claim 1, characterized in that: The straightening device further comprises an expansion frame (10) and a shielding member (11). The expansion frame (10) is rotatably provided on the top of the arc-shaped straightening block (1). Mounting grooves (1001) are provided on both longitudinal sides of the expansion frame (10). The shielding member (11) is detachably mounted in the mounting groove (1001).
10. The seedling straightening device for navel orange planting according to claim 9, characterized in that: The shielding member (11) is a grid shielding curtain.