Fruit and vegetable seedling raising frame

Abstract

The invention provides a fruit and vegetable seedling raising frame which comprises an outer frame, a top lamp arranged at the top of the outer frame and used for illumination, a middle frame arranged on the surface of the outer frame and a flat plate arranged on the surface of the middle frame and used for containing seedling raising pots. The floating plate is jacked up through expansion of the air bag, the seedlings with limited growth are driven to move upwards and get rid of shadow shielding of adjacent high plants, photosynthetically active radiation received by the low plants is directly increased through dynamic compensation of the physical height, the growth rate of the whole batch of seedlings returns to be consistent, and the yield of the seedlings is increased. The problem of growth polarization caused by fixed height in the prior art is solved, when liquid is selected as driving fluid, cold liquid circulation is achieved through the second open groove communicated with the interior of the floating plate, the floating plate has the cooling function while the height is adjusted, accumulated heat at the bottom of the seedling growing pot can be rapidly absorbed through contact type heat exchange, the temperature around a root system is reduced, and the seedling growing efficiency is improved. The ventilation flux of the substrate is recovered, and irreversible damage of high temperature to root systems of seedlings is avoided.

Description

Technical Field

[0001] This invention relates to the field of seedling racks, and more particularly to a fruit and vegetable seedling rack. Background Technology

[0002] Vegetable seedling cultivation is a core link in modern agricultural production, and its growth quality directly affects the subsequent yield and quality. In the process of large-scale seedling cultivation, multi-layer or matrix seedling racks are usually used in conjunction with artificial light sources for supplemental lighting. However, most existing seedling racks adopt a fixed flat structure, with seedling pots at the same horizontal height.

[0003] Due to biological differences among seedlings, the growth rates of fruit and vegetable seedlings in the same batch often vary. Faster-growing plants will rapidly expand their leaves, creating large areas of shade that obscure adjacent, slower-growing seedlings. This results in insufficient photosynthetic radiation for the seedlings in the shade, leading to uneven seedling growth. This causes the pores of the seedlings in the shaded areas to become blocked, which in turn restricts photosynthetic displacement and reduces the plant's disease resistance. At the same time, the temperature around the seedlings is too high due to the use of supplemental lighting in summer, and too low due to insufficient heat from the supplemental lighting in winter, resulting in low seedling efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a fruit and vegetable seedling rack.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a fruit and vegetable seedling rack, comprising: an outer frame, a top light installed on the top of the outer frame for lighting, a middle frame installed on the surface of the outer frame, and a flat plate installed on the surface of the middle frame for placing seedling pots; It also includes a height-adjustable floating board set in the middle of the flat plate. Multiple floating boards are set. When the seedling pot is placed on the surface of the floating board, the height of the floating board is adjusted according to the shadow caused by the growth height of the seedling, so as to balance the growth of the seedling.

[0006] Preferably, the surface of the flat plate is provided with an outer frame, and the inside of the outer frame is provided with a slot to restrict the movement of the floating plate.

[0007] Preferably, the slot is provided with an air bladder. By filling the air bladder with fluid, the air bladder expands and lifts the float.

[0008] Preferably, the fluid is a gas.

[0009] Preferably, the fluid is a liquid.

[0010] Preferably, the floating plate has a slot II that communicates with the air bladder, which reduces the temperature around the seedling pot by absorbing heat from the liquid.

[0011] Preferably, the bottom of the airbag is provided with a pipe, and the inside of the pipe is provided with an inclined ring. A floating plug is provided in the middle of the ring. An elastic element is provided on the surface of the floating plug. An inner plate is provided on the surface of the elastic element. The elastic element pushes the floating plug to a fixed position. The floating plug cooperates with the ring to seal the pipe.

[0012] Preferably, the diameter of the middle part of the floating plug is larger than the diameter of both ends, the surface of the floating plug is provided with air holes, and the interior of the floating plug is provided with a slot that connects the air holes to the bottom of the floating plug.

[0013] Preferably, the outer frame has a base frame on its surface, the base frame has multiple push rods on its surface, the push rods have connecting rods on their surfaces, the connecting rods have a first rod on their surfaces, the first rod has a rotatable second rod on its surfaces, the second rod has a support plate for supplying air to the pipeline, the first and second rods have air pipes connected to the support plate inside their interiors, one end of the air pipes is connected to an air pump, the bottom of the first rod has a motor that drives the second rod to rotate, and the multiple push rods control the extension length, adjust the angle of the connecting rods, and control the orientation of the first rod.

[0014] Preferably, the surface of the support plate is provided with an inclined surface. When the support plate contacts the bottom of the floating plug, the floating plug moves upward along the inclined surface, and the large diameter ring in the middle of the floating plug is pushed open, so that the air hole is connected to the pipe and the fluid enters the air bag.

[0015] Compared with the prior art, the beneficial effects of the present invention include: by expanding the air bladder to lift the floating plate, the seedlings with limited growth are moved upward, allowing them to escape the shadow of adjacent tall plants. This dynamic compensation of physical height directly increases the photosynthetically effective radiation received by the short plants, making the growth rate of the entire batch of seedlings return to uniformity, and solving the problem of growth polarization caused by fixed height in the prior art. When the driving fluid is selected as liquid, cold liquid circulation is achieved through the open slots connected inside the floating plate, so that the floating plate can adjust the height while also having a cooling function. This contact heat exchange can quickly absorb the accumulated heat at the bottom of the seedling pot, reduce the temperature around the roots, restore the aeration flux of the substrate, and avoid irreversible damage to the seedling roots caused by high temperature. Attached Figure Description

[0016] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 The diagram illustrates the structure of a fruit and vegetable seedling rack according to one embodiment of the present invention.

[0017] Figure 2 The diagram illustrates a frame structure according to an embodiment of the present invention.

[0018] Figure 3 The diagram illustrates a cross-sectional structure of the outer frame according to an embodiment of the present invention.

[0019] Figure 4 The schematic diagram shows a cross-sectional view of a floating plate structure according to an embodiment of the present invention.

[0020] Figure 5 The diagram illustrates a cross-sectional structure of a pipe according to an embodiment of the present invention.

[0021] Figure 6 The diagram illustrates the internal structure of a pipe according to one embodiment of the present invention.

[0022] Figure 7 The diagram schematically illustrates a chassis structure proposed according to an embodiment of the present invention.

[0023] Figure 8 The schematic diagram shows a cross-sectional view of the first and second rods according to an embodiment of the present invention.

[0024] Numbered in the diagram: 1. Top light; 2. Outer frame; 3. Middle frame; 4. Base frame; 5. Push rod; 6. Air pump; 7. Flat plate; 8. Floating plate; 9. Outer frame; 10. Slot; 11. Airbag; 12. Pipe; 13. Inner plate; 14. Ring 1; 15. Elastic element; 16. Floating plug; 17. Slot 1; 18. Connecting rod; 19. First rod; 20. Second rod; 21. Support plate; 22. Motor; 23. Air pipe; 24. Slot 2; 25. Air hole; Detailed Implementation

[0025] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0027] Example 1 According to one embodiment of the present invention, Figures 1-8 As shown, the present invention proposes a fruit and vegetable seedling rack, which aims to solve the technical pain point of existing seedling equipment that cannot specifically adjust local light and temperature control environment when dealing with the different growth rates of plants.

[0028] The outer frame 2 forms the skeleton system of this device. It is made of high-strength metal and supports the entire seedling space. Mechanical stability ensures the precise alignment of the upper optical system and the lower drive system. A top light 1 for lighting is horizontally mounted on the top of the outer frame 2. In this embodiment, the top light 1 is preferably a full-spectrum LED array. Its emission spectrum covers the wavelength range of 400nm to 700nm required for photosynthesis of fruit and vegetable seedlings. The height of the top light 1 is strictly perpendicular to the geometric center line of the outer frame 2 to ensure that the initial light intensity distribution on the horizontal plane presents a preset uniformity.

[0029] A middle frame 3 is set in the middle of the outer frame 2. The surface of the middle frame 3 supports a flat plate 7, which serves as the core support platform for seedling cultivation.

[0030] To regulate seedling growth, multiple adjustable floating plates 8 are arranged in the middle of the plate 7. The floating plates 8 change the distance between the seedling pot and the top light 1 by vertical displacement. When the seedlings in a certain area grow slowly and are shaded by adjacent tall plants, the floating plate 8 at that position can be raised to increase the light received by the plant. This balances the growth uniformity of the entire batch of seedlings through physical displacement compensation.

[0031] The surface of the flat plate 7 is provided with an outer frame 9 with a protective function. The inner wall of the outer frame 9 extends out a slot 10 to restrict the movement of the floating plate 8. The slot 10 restricts the degree of freedom of the floating plate 8 during the lifting and lowering process, ensuring that even when the center of gravity of the seedling pot is off-center, the floating plate 8 can still move smoothly along the vertical axis.

[0032] The core component that enables the dynamic response of the floating plate 8 is the airbag 11 set inside the slot 10. By filling the airbag 11 with fluid, the flexible outer wall of the airbag 11 undergoes elastic deformation and expands under the action of internal pressure. Since the airbag 11 is constrained between the bottom of the slot 10 and the bottom of the floating plate 8, this expansion force is converted into an upward thrust, lifting the floating plate 8. When the fluid medium is gas, the system exhibits a high response speed and buffering characteristics; while when the fluid medium is liquid, such as cooling circulating water, the system exhibits stronger load-bearing rigidity.

[0033] In the non-working state, the elastic element 15 set on the inner plate 13 continuously applies a downward preload to the floating plug 16. Since the inclined transition surface in the middle of the floating plug 16 forms a contact seal with the conical surface of the ring 14, it forms a normally closed one-way valve. Each airbag 11 is independently sealed. Even if the external drive system fails or loses power, the pressure in the airbag 11 can remain constant due to the self-locking effect of the floating plug 16, thereby maintaining the height position of the float plate 8 and preventing it from collapsing.

[0034] The base frame 4 serves as the power base for the entire drive system. Multiple push rods 5 are distributed in a matrix on the surface of the base frame 4. The extension and retraction length of these push rods 5 are precisely controlled by servo motors. The two ends of the connecting rod 18 are connected to the power ends of the push rods 5 through universal joints. This allows the connecting rod 18 to no longer be limited to the swing of a single plane, but to form a parallel mechanism with multiple degrees of freedom. By differentially adjusting the stroke of different push rods 5, the pitch angle, roll angle and horizontal azimuth angle of the connecting rod 18 in three-dimensional space can be changed.

[0035] The first rod 19 is arranged perpendicular to the axis of the connecting rod 18. The motor 22 fixed at its bottom provides rotational freedom for the end effector. The second rod 20, driven by the motor 22, can drive the pallet 21 to rotate circumferentially. The movement trajectory of the pallet 21 can cover any coordinate point in the projection area below the flat plate 7, so that a single drive source can serve multiple independent floating plate 8 modules as needed.

[0036] The air tube 23 extends to the outside from the contact position of the first rod 19 and the second rod 20, ensuring that the air tube 23 will not wrinkle or break due to excessive torsional torque when the second rod 20 rotates at a large angle, thus ensuring the continuity of fluid delivery.

[0037] The surface of the pallet 21 is designed with a specific slope. When the drive system sends the pallet 21 to the target position and lifts it upward, the slope of the pallet 21 first contacts the bottom frustum of the floating plug 16. As the thrust is continuously applied, the floating plug 16 overcomes the preload of the elastic element 15 and moves upward.

[0038] During this process, the large-diameter area in the middle of the floating plug 16 gradually squeezes and pushes open the flexible sealing lip of the ring 14, establishing communication between the originally blocked pipe 12 cavity and the outside. When the bottom of the floating plug 16 slides into the positioning groove at the top of the support plate 21, the floating plug 16 and the groove sealing surface are tightly fitted under the reverse push of the elastic element 15, forming a temporary pressure-bearing sealed cavity. The high-pressure fluid output by the air pump 6 enters the cavity through the air pipe 23, flows into the slot 17 through the air hole 25 on the side of the floating plug 16, and finally is injected into the air bag 11 through the pipe 12. Due to the adoption of this mechanical lifting opening mechanism, the system effectively avoids the risk of leakage and corrosion of the solenoid valve in the humid seedling environment.

[0039] Example 2 According to one embodiment of the present invention, Figures 1-8 The present invention provides a fruit and vegetable seedling rack.

[0040] When liquid is used as the driving fluid, the float plate 8 has a slot 24 inside, which forms a closed loop connected with the inner cavity of the air bag 11. The physical significance of this design is to utilize the thermal convection effect of the liquid: in the strong sunlight environment in summer, the heat generated by the top lamp 1 tends to accumulate on the surface of the seedling pot. By circulating the low temperature liquid between the air bag 11 and the slot 24, the float plate 8 actually becomes a dynamic cooling plate. It directly absorbs and removes the excess heat around the seedling pot through contact heat transfer and air convection, so that the device can accurately control the local root temperature according to different working conditions while adjusting the height, thus meeting the extremely high requirements of precision seedling cultivation for environmental stability.

[0041] To ensure the accuracy and sealing of fluid delivery, the bottom of the airbag 11 is coupled with a pipe 12. The pipe 12 is not only the channel for fluid to enter the airbag, but also the key interface for selective charging. On the inner wall of the pipe 12, there is an inclined ring 14. A floating plug 16 is fitted at the center of the ring 14. The physical configuration of the floating plug 16 is a spindle shape with a thick middle section and thin ends. Its surface is precisely machined with air holes 25, and a slot 17 runs through it.

[0042] The top light 1 supported by the outer frame 2 provides regular illumination to all seedlings on the middle frame 3. As the growth time progresses, the seedlings in the central area grow faster due to the characteristics of the variety or environmental advantages. The shadows formed by their leaves block the seedlings in the edge area, resulting in a reduction in the photosynthesis of the edge seedlings.

[0043] The required lifting height of the obstructed floating plate 8 is controlled. Subsequently, multiple push rods 5 on the base frame 4 move synchronously. By adjusting the extension, the angle of the connecting rod 18 is changed, and the first rod 19 is guided to be below the vertical projection of the disaster-stricken floating plate. The motor 22 starts and the phase of the second rod 20 is finely adjusted so that the support plate 21 is precisely aligned with the target pipe 12.

[0044] The tray 21 lifts the floating plug 16, opening the fluid channel. The air pump 6 fills the air bag 11 with fluid. Under the limiting constraint of the slot 10, the air bag 11 expands upward, overcoming the weight of the seedling pot and lifting the floating plate 8 to the preset height.

[0045] After charging is completed, push rod 5 drives support plate 21 to move. Floating plug 16 is instantly reset under the action of elastic element 15, forming a high-pressure seal with ring 14 again, locking the pressure inside airbag 11. Floating plate 8 remains in a high position. At this time, the edge plants, due to their increased height, are freed from the shadow of the central plants and regain sufficient light. Finally, the drive mechanism returns to its original position or turns to the next module that needs adjustment, completing a complete dynamic compensation cycle.

[0046] This device exhibits excellent adaptability. Under low-temperature seedling conditions, heated warm water is filled into the air bladder 11. The float 8 acts as a heating medium, and heat is conducted to the bottom of the seedling pot through the slot 24, ensuring that the root temperature is in the active growth zone and avoiding the prolongation of the seedling recovery period caused by excessively low soil temperature.

[0047] During the rapid growth period, the biomass of the seedlings increases daily, causing dynamic changes in the gravity load borne by the float 8. When the increased gravity causes the airbag to compress and the float to sink, the air pump performs pressure compensation.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A fruit and vegetable seedling rack, characterized in that, include: The outer frame, a top light installed on the top of the outer frame for lighting, a middle frame installed on the surface of the outer frame, and a flat plate installed on the surface of the middle frame for placing seedling pots; It also includes a height-adjustable floating board set in the middle of the flat plate. Multiple floating boards are set. When the seedling pot is placed on the surface of the floating board, the height of the floating board is adjusted according to the shadow caused by the growth height of the seedling, so as to balance the growth of the seedling.

2. The fruit and vegetable seedling rack according to claim 1, characterized in that, The surface of the flat plate is provided with an outer frame, and the inside of the outer frame is provided with a slot to restrict the movement of the floating plate.

3. A fruit and vegetable seedling rack according to claim 2, characterized in that, The slot is equipped with an air bladder. By filling the air bladder with fluid, the air bladder expands and lifts the float.

4. A fruit and vegetable seedling rack according to claim 3, characterized in that, The fluid is a gas.

5. A fruit and vegetable seedling rack according to claim 3, characterized in that, The fluid is a liquid.

6. A fruit and vegetable seedling rack according to claim 5, characterized in that, The floating plate has a slot 2 inside that communicates with the air bladder, which reduces the temperature around the seedling pot by absorbing heat from the liquid.

7. A fruit and vegetable seedling rack according to claim 3, characterized in that, The bottom of the airbag is provided with a pipe, and inside the pipe is an inclined ring. A floating plug is provided in the middle of the ring. An elastic element is provided on the surface of the floating plug, and an inner plate is provided on the surface of the elastic element. The elastic element pushes the floating plug to a fixed position, and the floating plug cooperates with the ring to seal the pipe.

8. A fruit and vegetable seedling rack according to claim 7, characterized in that, The diameter of the middle part of the floating plug is larger than the diameter of both ends. The surface of the floating plug is provided with air holes, and the interior of the floating plug is provided with a slot that connects the air holes to the bottom of the floating plug.

9. A fruit and vegetable seedling rack according to claim 8, characterized in that, The outer frame has a base frame on its surface, and the base frame has multiple push rods on its surface. The push rods have connecting rods on their surfaces, the connecting rods have a first rod on their surfaces, the first rod has a rotatable second rod on its surfaces, and the second rod has a support plate for supplying air to the pipeline. The first and second rods have air pipes connected to the support plate inside their interiors, and one end of the air pipe is connected to an air pump. The bottom of the first rod has a motor that drives the second rod to rotate. The multiple push rods control the extension length and adjust the angle of the connecting rods to control the orientation of the first rod.

10. A fruit and vegetable seedling rack according to claim 9, characterized in that, The surface of the support plate is provided with an inclined surface. When the support plate contacts the bottom of the floating plug, the floating plug moves upward along the inclined surface. The large diameter ring in the middle of the floating plug is pushed open, and the air hole is connected to the pipe, so that the fluid enters the air bag.

Images