A seedling raising rack for tropical fruit planting

Abstract

The present invention relates to the technical field of fruit and vegetable planting, specifically a seedling raising frame for tropical fruit planting, comprising a planting box, a mobile frame and a climbing rod, the upper end surface of the mobile frame is provided with a climbing rod, the upper half of the planting box is provided with a planting cavity, the lower half of the planting box is provided with an assembly cavity, a nutrient solution distribution box is provided in the assembly cavity, a lifting mechanism is provided at the lower end of the nutrient solution distribution box, a plurality of fertilizer inserts are provided at the upper end of the nutrient solution distribution box, a cylindrical hole is provided between the planting cavity and the assembly cavity, a plurality of fertilizer inserts penetrate the cylindrical hole and extend into the planting cavity, a sealing assembly is provided at each cylindrical hole, a plurality of sealing assemblies can synchronously open or close the cylindrical hole under the drive of a linkage mechanism, and the linkage mechanism is powered by a lifting mechanism. In the present invention, the nutrient solution is uniformly injected from the bottom of the soil, so that the fruit seedlings can absorb nutrients well, the fertilization effect is good, and it is beneficial to plant growth.

Description

Technical Field

[0001] The invention relates to the technical field of fruit and vegetable planting, in particular to a seedling raising frame used for tropical fruit planting. Background Art

[0002] For the current tropical fruit planting, space is limited. The previous practice of planting fruits in rows and columns not only wastes space but is also inconvenient to plant, so it is necessary to use seedling racks for fruit planting.

[0003] The Chinese utility model patent with application number CN202120050286.X discloses an adjustable fruit and vegetable planting rack, including a fruit and vegetable planting box, a bottom supporting foot is installed at the bottom corner of the fruit and vegetable planting box, a bottom drainage pipe is installed in the middle of the left side of the fruit and vegetable planting box, a bearing plate placement groove is opened at the bottom of the inner wall of the fruit and vegetable planting box, a planting bearing plate is installed on the upper side of the bearing plate placement groove, the planting bearing plate includes an external support frame, a bearing net and a bearing support foot, an external support frame is arranged outside the planting bearing plate, a bearing net is installed on the inner wall of the external support frame, and evenly distributed bearing support feet are installed at the bottom of the external support frame, an auxiliary handle is installed in the middle of the upper side of the left and right side walls of the fruit and vegetable planting box, and a lower side support column is installed in the middle of the back of the fruit and vegetable planting box;

[0004] The planting rack only optimizes the height adjustment method of the device by setting a limit device. However, during the planting process, the growth quality of the seedlings mainly depends on whether the fertilization is in place. The above-mentioned planting rack is obviously not conducive to uniform fertilization. The nutrient solution needs to be injected from above the soil, which causes some of the clumping fertilizer to leak on the soil surface. The nutrients cannot be absorbed by the fruit seedlings, and the fertilization effect is poor. Summary of the invention

[0005] The object of the present invention is to provide a seedling raising rack for tropical fruit planting to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a seedling raising rack for tropical fruit planting, comprising a planting box, a movable rack and a climbing rod, the movable rack being limitedly slidably installed on the planting box, a plurality of linearly distributed climbing rods being arranged on the upper end surface of the movable rack, a planting cavity opening upward being arranged on the upper half of the planting box, an assembly cavity being arranged in a hollow shape in the lower half of the planting box, a nutrient solution distribution box being arranged in the assembly cavity, a lifting mechanism being arranged at the lower end of the nutrient solution distribution box, a plurality of fertilizer inserts distributed in a rectangular array being arranged at the upper end of the nutrient solution distribution box, a cylindrical hole being penetrated between the planting cavity and the assembly cavity, one end of the plurality of fertilizer inserts away from the nutrient solution distribution box penetrates the cylindrical hole and extends into the planting cavity, a sealing assembly is arranged at each cylindrical hole, and a plurality of sealing assemblies can synchronously open or close the cylindrical holes under the drive of a linkage mechanism, and the linkage mechanism is powered by the lifting mechanism.

[0007] Preferably, the lifting mechanism includes a driving screw pair, an X-shaped hinge and an assembly strip. The driving screw pair is placed horizontally in the assembly cavity. The driving screw pair is formed by coaxially welding two short screws with opposite thread directions. A set of screw nuts is sleeved on each short screw, and each set of screw nuts is fixedly connected to two support columns. Two sets of X-shaped hinges are provided on both sides of the nutrient solution dispensing box.

[0008] Preferably, the X-shaped hinge comprises an A rod and a B rod, the middle end of the A rod is hinged to the middle end of the B rod by a pin, one end of the A rod is sleeved on the support column, the other end of the A rod is rotatably mounted on the side wall of the nutrient solution dispensing box by a pin, one end of the B rod is rotatably mounted on the bottom wall of the assembly cavity by a hinge block, the other end of the B rod is fixedly connected to a sliding column, and long sliding grooves are provided on the side wall of the nutrient solution dispensing box and the assembly strip, the sliding column is slidably inserted in the assembly groove on the nutrient solution dispensing box, and both ends of the support column extend outward and are inserted in the assembly grooves on the assembly strip.

[0009] Preferably, a placement groove for accommodating the sealing assembly is provided on the outer periphery of each cylindrical hole, and the sealing assembly includes six groups of sealing blocks distributed in a circular array, one end of the sealing block is fixedly connected to a pushing block, and the other end of the sealing block slides into the cylindrical hole, the pushing block is limitedly slidably installed in the placement groove, and an inclined groove is provided on the pushing block, a toggle rod is inserted in the inclined groove, both ends of the toggle rod are fixedly connected to a vertical pole, the bottoms of the multiple vertical poles are commonly connected to a moving ring, one side of the moving ring is fixedly connected to a support plate, the support plates in the same row are commonly fixedly connected to a connecting beam, and the two ends of the multiple connecting beams are commonly connected to a group of vertical plates.

[0010] Preferably, the bottom of the vertical plate is connected to the linkage mechanism, and a movable groove for accommodating the linkage mechanism is also opened inside the planting box. The linkage mechanism includes an active block, a return spring, a limit bar, a driven push block and a wedge-shaped translation seat. The vertical plate is limited and slidably installed in the movable groove and its bottom is fixedly connected to the wedge-shaped translation seat. The bottom of the wedge-shaped translation seat is abutted and connected to the driven push block, and the driven push block is provided with three limit bars, all of which are fixedly connected.

[0011] Preferably, the limit bar is slidably installed in the movable groove, one end of the active block is fixedly connected to the limit bar, the other end of the active block is arranged in an arc shape and extends into the assembly cavity, and a group of return springs are arranged between two adjacent driven push blocks, and the return springs are fixedly connected to the limit bar.

[0012] Preferably, the sealing block is a fan-shaped block, the interior of the fertilization insert is hollow and through holes are evenly opened on its side wall, and the top of the fertilization insert is configured to be truncated cone-shaped.

[0013] Preferably, a liquid storage tank is fixedly installed on the front side wall of the planting box, and a liquid guide tube connected to the liquid storage tank is installed at the bottom of the nutrient solution distribution box. The liquid guide tube is a retractable hose, and the fertilizer insert is fixedly connected to the nutrient solution distribution box, and the inner cavity of the fertilizer insert is connected to the inner cavity of the nutrient solution distribution box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a planting cavity in the upper half of the planting box for laying a soil layer so as to plant fruit seedlings; and provides a nutrient solution distribution box in the lower half of the planting box, and the upper end surface of the nutrient solution distribution box is provided with a fertilizer insert that can be extended into the planting cavity. On the one hand, it can dredge the soil layer, increase the air density of the soil, and then increase the oxygen content in the soil, so that the nutrient solution can better act on the roots of the fruit seedlings; on the other hand, multiple fertilizer inserts are arranged in a rectangular distribution, so that the nutrient solution is evenly injected from the bottom of the soil, avoiding the problem of some clumping fertilizers leaking on the soil surface, so that the fruit seedlings can absorb nutrients well, the fertilization effect is good, and it is beneficial to plant growth.

[0016] 2. The present invention can form a linkage effect with the nutrient solution distribution box by setting an active block, a return spring, a limit strip, a driven push block and a wedge-shaped translation seat for use. When the nutrient solution distribution box moves upward, the vertical plate moves downward; when the nutrient solution distribution box moves downward, the vertical plate moves upward, so that the sealing block can perform a corresponding closing movement as the fertilization tube moves, and the coordination is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2It is a schematic cross-sectional view of the structure of the present invention.

[0019] Figure 3 It is a three-dimensional schematic diagram of the internal components of the present invention.

[0020] Figure 4 It is a schematic diagram of the cut-away nutrient solution dispensing box and the lifting mechanism of the present invention.

[0021] Figure 5 It is a connection diagram of the fertilization cannula and the linkage mechanism in the present invention.

[0022] Figure 6 It is a schematic diagram of the connection between the fertilization cannula and the sealing component in the present invention.

[0023] In the figure: planting box 1, planting cavity 101, assembly strip 102, mobile frame 2, climbing rod 3, fertilization tube 4, through hole 401, nutrient solution distribution box 5, liquid guide tube 6, liquid storage tank 7, driving screw pair 8, A rod 9, B rod 901, sliding column 10, active block 11, return spring 12, limit strip 13, driven push block 14, wedge-shaped translation seat 15, vertical plate 16, connecting beam 17, support plate 18, movable ring 19, vertical rod 20, toggle rod 21, inclined groove 22, push block 23, sealing block 24. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 6 The present invention provides a technical solution: a seedling raising rack for tropical fruit planting, comprising a planting box 1, a mobile frame 2 and a climbing rod 3, the mobile frame 2 is limitedly slidably installed on the planting box 1, the mobile frame 2 is a door-shaped frame, and a row of climbing rods 3 are arranged on both sides of the upper end surface, and each row has five climbing rods 3 distributed linearly, the upper half of the planting box 1 is provided with a planting cavity 101 with an opening upward, for adding breeding soil, the lower half of the planting box 1 is hollowly provided with an assembly cavity, and a nutrient solution distribution box 5 is arranged in the assembly cavity A lifting mechanism is provided at the lower end of the nutrient solution distribution box 5, and a plurality of fertilizer inserts 4 distributed in a rectangular array are provided at the upper end of the nutrient solution distribution box 5. A cylindrical hole is penetrated between the planting cavity 101 and the assembly cavity. One end of the plurality of fertilizer inserts 4 away from the nutrient solution distribution box 5 penetrates the cylindrical hole and extends into the planting cavity 101. A sealing component is provided at each cylindrical hole. The plurality of sealing components can synchronously open or close the cylindrical hole under the drive of the linkage mechanism, and the linkage mechanism is powered by the lifting mechanism.

[0026] Furthermore, the present invention provides a planting cavity 101 in the upper half of the planting box 1 for laying a soil layer for planting fruit seedlings; and provides a nutrient solution distribution box 5 in the lower half of the planting box 1, and the upper end surface of the nutrient solution distribution box 5 is provided with a fertilizer insert 4 that can be extended into the planting cavity 101. On the one hand, it can dredge the soil layer, increase the air density of the soil, and then increase the oxygen content in the soil, so that the nutrient solution can better act on the roots of the fruit seedlings; on the other hand, multiple fertilizer inserts 4 are arranged in a rectangular distribution, so that the nutrient solution is evenly injected from the bottom of the soil, avoiding the problem of some clumping fertilizers leaking on the soil surface, so that the fruit seedlings can absorb nutrients well, the fertilization effect is good, and it is beneficial to plant growth.

[0027] The lifting mechanism includes a driving screw pair 8, an X-shaped hinge and an assembly strip 102. The driving screw pair 8 is placed horizontally in the assembly cavity. The driving screw pair 8 is coaxially welded by two short screws with opposite thread directions. A set of screw nuts are sleeved on each short screw, and each set of screw nuts is fixedly connected to two support columns. Two sets of X-shaped hinges are arranged on both sides of the nutrient solution distribution box 5.

[0028] Furthermore, by providing multiple groups of X-shaped hinges to act together on the nutrient solution distribution box 5, the force points are more balanced, so that the nutrient solution distribution box 5 can move up and down smoothly;

[0029] The X-shaped hinge includes an A rod 9 and a B rod 901. The middle end of the A rod 9 is hinged to the middle end of the B rod 901 through a pin shaft. One end of the A rod 9 is sleeved on the support column, and the other end of the A rod 9 is rotatably installed on the side wall of the nutrient solution distribution box 5 through a pin shaft. One end of the B rod 901 is rotatably installed on the bottom wall of the assembly cavity through a hinge block. The other end of the B rod 901 is fixedly connected to a sliding column 10, and long sliding grooves are provided on the side wall of the nutrient solution distribution box 5 and the assembly strip 102. The sliding column 10 is slidably inserted in the assembly groove on the nutrient solution distribution box 5, and both ends of the support column extend outward and are inserted in the assembly groove on the assembly strip 102.

[0030] Specifically, by starting the driving screw pair 8 to move, since the driving screw pair 8 is composed of two short screws with opposite thread directions coaxially welded, the two sets of screw nuts move linearly towards each other, so that the support column pulls one end of the A rod 9 to move left and right along the long slide groove. Since the A rod 9 and the B rod 901 are hinged to each other, the nutrient solution dispensing box 5 is driven to move up and down.

[0031] A placement groove for accommodating the sealing assembly is provided on the outer periphery of each cylindrical hole. The sealing assembly includes six groups of sealing blocks 24 distributed in a circular array. A push block 23 is fixedly connected to one end of the sealing block 24, and the other end of the sealing block 24 slides into the cylindrical hole. The push block 23 is limitedly slidably installed in the placement groove, and an inclined groove 22 is provided through the push block 23. A toggle rod 21 is inserted in the inclined groove 22. Both ends of the toggle rod 21 are fixedly connected to a vertical pole 20. The bottoms of the multiple vertical poles 20 are commonly connected to a moving ring 19. One side of the moving ring 19 is fixedly connected to a support plate 18. The support plates 18 in the same row are commonly fixedly connected to a connecting beam 17. Both ends of the multiple connecting beams 17 are commonly connected to a group of vertical plates 16.

[0032] Furthermore, by arranging the connecting crossbeam 17, the support plate 18, the moving ring 19, the vertical rod 20, the toggle rod 21, the inclined groove 22 and the pushing block 23 for use in cooperation, the up and down movement of the vertical plate 16 can be converted into the radial synchronous movement of the multiple groups of sealing blocks 24, so that the sealing blocks 24 can close or open the cylindrical hole;

[0033] The bottom of the vertical plate 16 is connected to the linkage mechanism, and a movable groove for accommodating the linkage mechanism is also opened inside the planting box 1. The linkage mechanism includes an active block 11, a return spring 12, a limit bar 13, a driven push block 14 and a wedge-shaped translation seat 15. The vertical plate 16 is slidingly installed in the movable groove and its bottom is fixedly connected to the wedge-shaped translation seat 15. The bottom of the wedge-shaped translation seat 15 is abutted and connected to the driven push block 14. The driven push block 14 is provided with three limit bars 13, all of which are fixedly connected.

[0034] Furthermore, by setting the active block 11, the return spring 12, the limit strip 13, the driven push block 14 and the wedge-shaped translation seat 15 for use in conjunction with each other, a linkage effect can be formed with the nutrient solution distribution box 5, so that when the nutrient solution distribution box 5 moves upward, the vertical plate 16 moves downward; when the nutrient solution distribution box 5 moves downward, the vertical plate 16 moves upward, so that the sealing block 24 can perform a corresponding closing movement as the fertilization tube 4 moves, and the degree of coordination is strong.

[0035] The limit bar 13 is installed in the movable groove in a limited sliding manner, one end of the active block 11 is fixedly connected to the limit bar 13, the other end of the active block is set in an arc shape and extends into the assembly cavity, and a group of return springs 12 are set between two adjacent driven push blocks 14, and the return springs 12 are fixedly connected to the limit bar 13. The sealing block 24 is a fan-shaped block, the fertilizing insert 4 is hollow inside and through holes 401 are evenly opened on its side wall, and the top of the fertilizing insert 4 is set in a truncated cone shape.

[0036] Specifically, when the nutrient solution dispensing box 5 moves upward, the active block 11 drives the limit bar 13 and the driven push block 14 to move toward the assembly cavity under the elastic force of the return spring 12. At this time, the driven push block 14 releases the resistance force on the wedge-shaped translation seat 15, and under the action of gravity, the vertical plate 16 drives the connecting beam 17 to move downward;

[0037] When the nutrient solution dispensing box 5 moves downward and just contacts the arc end of the active block 11, the active block 11 is forced to drive the limit bar 13 and the driven push block 14 to move toward the vertical plate 16. At this time, the driven push block 14 contacts the inclined surface end of the wedge-shaped translation seat 15, so that the wedge-shaped translation seat 15 drives the vertical plate 16 and the connecting crossbeam 17 to move upward;

[0038] A liquid storage tank 7 is fixedly installed on the front side wall of the planting box 1, and this arrangement is for the convenience of timely addition of nutrient solution; a liquid guide tube 6 connected to the liquid storage tank 7 is installed at the bottom of the nutrient solution distribution box 5, and the liquid guide tube 6 is a retractable hose, and the flow diversion power is provided by a pressure pump; the fertilization insert tube 4 is fixedly connected to the nutrient solution distribution box 5, and the inner cavity of the fertilization insert tube 4 is connected to the inner cavity of the nutrient solution distribution box 5.

[0039] When the present invention is in use: the soil is evenly spread in the planting cavity 101, and the fruit seedlings are planted therein; when fertilization is needed, the driving screw pair 8 is started to move, and since the driving screw pair 8 is formed by coaxially welding two short screws with opposite thread directions, the two sets of screw nuts move linearly toward each other, so that the support column pulls one end of the A rod 9 to move along the long slide groove toward the vertical plate 16, and since the A rod 9 and the B rod 901 are hinged to each other, the nutrient solution distribution box 5 is driven to move upward, and at this time the nutrient solution distribution box 5 is disconnected before the active block 11, so that the active block 11 drives the limit bar 13 and the driven block 13 under the elastic force of the reset spring 12. The push block 14 moves toward the assembly cavity. At this time, the driven push block 14 releases the resistance force on the wedge-shaped straight-moving seat 15. Under the action of gravity, the vertical plate 16 drives the connecting beam 17 to move downward, and the connecting beam 17 acts on the support plate 18 and the moving ring 19, so that the vertical rod 20 drives the toggle rod 21 to move downward, and the toggle rod 21 acts on the inclined groove 22, so that the push block 23 is forced to drive the sealing block 24 to be quickly withdrawn from the cylindrical hole, so that the multiple fertilizer inserts 4 can be normally extended into the planting cavity 101, the soil is dredged, and the nutrient solution in the nutrient solution distribution box 5 is evenly injected into the soil, so as to promote the growth of the fruit seedlings;

[0040] Similarly, when fertilization is completed, the nutrient solution distribution box 5 is driven downward again by the lifting mechanism. When the fertilization tube 4 is retracted into the assembly cavity and the nutrient solution distribution box 5 just contacts the active block 11, the active block 11 is forced to drive the limit strip 13 and the driven push block 14 to move toward the direction of the vertical plate 16. At this time, the driven push block 14 contacts the inclined end of the wedge-shaped straight-moving seat 15, so that the wedge-shaped straight-moving seat 15 drives the vertical plate 16 and the connecting beam 17 to move upward; and the connecting beam 17 acts on the support plate 18 and the moving ring 19, so that the vertical rod 20 drives the toggle rod 21 to move upward, and the toggle rod 21 acts on the inclined groove 22, so that the push block 23 is forced to drive the sealing block 24 to block the cylindrical hole to prevent the nutrient solution from leaking out of the cylindrical hole.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seedling raising rack for tropical fruit planting, comprising a planting box (1), a mobile rack (2) and a climbing rod (3), characterized in that: The movable frame (2) is limitedly slidably mounted on the planting box (1); the upper end surface of the movable frame (2) is provided with a plurality of linearly distributed climbing rods (3); the upper half of the planting box (1) is provided with a planting cavity (101) opening upward; the lower half of the planting box (1) is hollowly provided with an assembly cavity; a nutrient solution distribution box (5) is provided in the assembly cavity; a lifting mechanism is provided at the lower end of the nutrient solution distribution box (5); a plurality of fertilization plugs (4) distributed in a rectangular array are provided at the upper end of the nutrient solution distribution box (5); a cylindrical hole is provided between the planting cavity (101) and the assembly cavity; one end of the plurality of fertilization plugs (4) away from the nutrient solution distribution box (5) passes through the cylindrical hole and extends into the planting cavity (101); a sealing component is provided at each cylindrical hole; the plurality of sealing components can synchronously open or close the cylindrical hole under the drive of the linkage mechanism, and the linkage mechanism is powered by the lifting mechanism; a sealing component is provided at the periphery of each cylindrical hole to accommodate the sealing component The placing groove, the sealing assembly comprises six groups of sealing blocks (24) distributed in a circular array, one end of the sealing block (24) is fixedly connected to a push block (23), the other end of the sealing block (24) slides into the cylindrical hole, the push block (23) is limitedly slidably installed in the placing groove, and an inclined groove (22) is penetrated on the push block (23), a toggle rod (21) is inserted in the inclined groove (22), and both ends of the toggle rod (21) are fixedly connected to a vertical rod (20), and the plurality of vertical rods (2 0) are commonly connected to the bottom of the moving ring (19), one side of the moving ring (19) is fixedly connected to a support plate (18), the support plates (18) in the same row are commonly fixedly connected to a connecting crossbeam (17), and the two ends of the multiple connecting crossbeams (17) are commonly connected to a group of vertical plates (16); the sealing block (24) is a fan-shaped block, the inside of the fertilizer insert (4) is hollow and the side wall thereof is evenly provided with through holes (401), and the top of the fertilizer insert (4) is arranged in a truncated cone shape; The lower part of the vertical plate (16) is connected to the linkage mechanism. The interior of the planting box (1) is also provided with a movable groove for accommodating the linkage mechanism. The linkage mechanism comprises an active block (11), a return spring (12), a limit bar (13), a driven push block (14) and a wedge-shaped translation seat (15). The vertical plate (16) is limitedly slidably installed in the movable groove and its bottom is fixedly connected to the wedge-shaped translation seat (15). The bottom of the wedge-shaped translation seat (15) is abutted and connected to the driven push block (14). The driven push block (14) is provided with three limit bars (13) which are all fixedly connected. The limit bars (13) are limitedly slidably installed in the movable groove. One end of the active block (11) is fixedly connected to the limit bar (13). The other end of the active block is arranged in an arc shape and extends into the assembly cavity. A group of return springs (12) are arranged between two adjacent driven push blocks (14). The return springs (12) are fixedly connected to the limit bars (13).

2. A seedling raising rack for tropical fruit planting according to claim 1, characterized in that: The lifting mechanism comprises a driving screw pair (8), an X-shaped hinge and an assembly strip (102). The driving screw pair (8) is horizontally placed in the assembly cavity. The driving screw pair (8) is coaxially welded from two short screws with opposite thread directions. A set of screw nuts is sleeved on each short screw. Each set of screw nuts is fixedly connected to two support columns. Two sets of X-shaped hinges are arranged on both sides of the nutrient solution distribution box (5).

3. A seedling raising rack for tropical fruit planting according to claim 2, characterized in that: The X-shaped hinged member comprises an A rod (9) and a B rod (901), the middle end of the A rod (9) and the middle end of the B rod (901) are hingedly connected via a pin shaft, one end of the A rod (9) is sleeved on the support column, the other end of the A rod (9) is rotatably mounted on the side wall of the nutrient solution distribution box (5) via the pin shaft, one end of the B rod (901) is rotatably mounted on the bottom wall of the assembly cavity via a hinge block, the other end of the B rod (901) is fixedly connected to a sliding column (10), and long sliding grooves are provided on the side wall of the nutrient solution distribution box (5) and the assembly strip (102), the sliding column (10) is slidably inserted into the assembly groove on the nutrient solution distribution box (5), and the two ends of the support column extend outwardly and are inserted into the assembly groove on the assembly strip (102).

4. A seedling raising rack for tropical fruit planting according to claim 1, characterized in that: A liquid storage tank (7) is fixedly mounted on the front side wall of the planting box (1); a liquid guide tube (6) connected to the liquid storage tank (7) is mounted at the bottom of the nutrient solution distribution box (5); the liquid guide tube (6) is a retractable hose; a fertilization insert tube (4) is fixedly connected to the nutrient solution distribution box (5); and the inner cavity of the fertilization insert tube (4) is connected to the inner cavity of the nutrient solution distribution box (5).

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