Three-dimensional water culture device for anther culture seedlings based on rice anther in-vitro culture system

Abstract

The embodiment of the invention provides a three-dimensional water culture device for anther culture seedlings based on a rice anther in-vitro culture system, and relates to the field of water culture equipment. Comprising a support and a plurality of hydroponic tanks, and a plurality of brackets used for placing the hydroponic tanks are mounted on the support; the hydroponic tank is of a hollow structure with an open top, a top plate capable of closing the hydroponic tank is placed at the top of the hydroponic tank, a plurality of seedling culture bases are installed on the top plate, a lifting mechanism is installed in the hydroponic tank, and the lifting mechanism can make the top plate ascend or descend. The rice seedling root system can be automatically separated from water, inspection is facilitated, the working difficulty is reduced, and the efficiency is improved; the growth space of rice seedling root systems can be limited, the root systems are prevented from expanding all around and growing obliquely, and the follow-up transplanting survival rate is increased; in addition, when rice seedlings leave water, the root system movement can be prevented from being hindered, and it can be guaranteed that the root system is not damaged when reset.

Description

Technical Field

[0001] The invention relates to the field of hydroponic equipment, and in particular to a three-dimensional hydroponic device for anther culture seedlings based on a rice anther in vitro culture system. Background Art

[0002] Rice anther in vitro culture is a plant tissue culture technology. It is a technology that separates the anthers (pollen sacs) of rice from the plant and cultures them on an artificially prepared culture medium, so that the pollen cells in the anthers form callus tissue through dedifferentiation, and then undergo a redifferentiation process to develop into haploid plants. When the three-dimensional anther develops into a single plant, it needs to be transferred to a hydroponic device for cultivation. When its root system develops to a certain extent, it can be transplanted.

[0003] A hydroponic device is a device used for hydroponic growth of plants. Rice is an aquatic crop that requires sufficient water and appropriate water depth during the seedling stage. Therefore, the use of a hydroponic device can provide a stable water level to ensure that the roots of the rice seedlings are always immersed in water and ensure good root development. The hydroponic devices on the market are usually made of plastic, glass or other corrosion-resistant materials to ensure long-term use. They are also equipped with planting baskets for placing fixed plants. Usually, multiple planting baskets can be placed on the water tank of the hydroponic device.

[0004] During the growth of rice seedlings, the roots are immersed in nutrient solution for a long time. If the oxygen content is too low, there is a probability that the roots will rot and necrotize. Therefore, it is necessary to check the roots from water from time to time. The roots of rice seedlings leaving the nutrient solution can not only facilitate the observation of the roots, but also ventilate the roots and reduce the chance of root rot. However, the current hydroponic devices require manual labor to move the planting basket, and manual operation is required one by one to complete the dehydration of the roots of the rice seedlings, which is inefficient and inconvenient to operate.

[0005] Based on this, the present invention is proposed. Summary of the invention

[0006] According to an embodiment of the present invention, a three-dimensional hydroponic device for rice anther culture seedlings based on a rice anther in vitro culture system is provided to solve the problem that the existing method of removing water from the roots of rice seedlings requires manual operation one by one, which is slow in efficiency and inconvenient to operate.

[0007] In a first aspect of the present invention, a three-dimensional hydroponic device for cultivating rice anther seedlings based on a rice anther in vitro culture system is provided.

[0008] The three-dimensional hydroponic device for anther culture seedlings based on a rice anther in vitro culture system comprises: a support and a plurality of hydroponic boxes, wherein a plurality of brackets for placing the hydroponic boxes are installed on the support;

[0009] The hydroponic box is a hollow structure with an open top. A top plate capable of closing the hydroponic box is placed on the top of the hydroponic box. A plurality of seedling raising bases are installed on the top plate. A lifting mechanism is installed in the hydroponic box, and the lifting mechanism can raise or lower the top plate.

[0010] Preferably, two supporting rods are symmetrically mounted on the hydroponic box, and the top plate is slidably mounted on the two supporting rods;

[0011] The top plate is provided with a plurality of placement holes at equal intervals, and a plurality of the seedling raising bases are placed in the plurality of the placement holes.

[0012] Preferably, the lifting mechanism includes two mobile frames, a rotating rod, a push block, a driving plate, a slot and an electric push rod, the two mobile frames are symmetrically installed in the hydroponic box, one end of the rotating rod is rotatably installed on the two mobile frames, the other end of the rotating rod is rotatably installed on the lower surface of the top plate, the push block is installed on the lower surface of the mobile block, the driving plate is installed in the hydroponic box, the slot is opened on the driving plate, the slot is engaged with the push block, the electric push rod is installed on the hydroponic box, and the output end of the electric push rod extends into the hydroponic box and is connected to the driving plate.

[0013] Preferably, a first spring is installed between the movable frame and the inner wall of the hydroponic box.

[0014] Preferably, two slide grooves are symmetrically installed in the hydroponic box, and the two movable frames are engaged with the slide grooves.

[0015] Preferably, the length of the card slot is greater than the length of the push block.

[0016] Preferably, a plurality of groups of teeth are equidistantly installed on the driving plate, a plurality of protective mechanisms are equidistantly installed in the inner cavity of the hydroponic box, and the plurality of protective mechanisms correspond to the plurality of placement holes respectively.

[0017] Preferably, the protection mechanism comprises a mounting frame, a first guard plate, a second guard plate, an interactive groove, a slider, a slideway, a gear ring and a driving rod, the mounting frame is fixedly mounted in the hydroponic box, the first guard plate and the second guard plate are symmetrically mounted on the mounting frame, the first guard plate and the second guard plate are both arranged in an L shape, and a space for protecting the root system of the seedling is formed between the first guard plate and the second guard plate, and there are a plurality of interactive grooves, which are respectively opened on the first guard plate and the second guard plate;

[0018] The slideway is opened on the mounting frame, the two sliders are respectively connected to the first guard plate and the second guard plate, and the slider is slidably connected to the slideway; the gear ring is rotatably mounted on the mounting frame, and the gear ring is meshingly connected to the teeth, there are two driving rods, the two driving rods are symmetrically arranged relative to the gear ring, one end of the two driving rods are respectively rotatably mounted on the gear ring, and the other ends of the two driving rods are respectively rotatably connected to the two sliders.

[0019] Preferably, an extension frame is installed on the gear ring, a clamping rod is installed on the extension frame, clamping parts are symmetrically installed on the mounting frame, and the clamping rod and the clamping parts cooperate with each other to limit the relative position of the gear ring and the mounting frame;

[0020] The limiting portion includes a fixed rod, a sliding seat, a second spring and a block. There are two fixed rods, which are symmetrically installed on the mounting frame. There are two sliding seats, which are respectively installed at one end of the two fixed rods away from the mounting frame. The second spring is installed between the fixed rod and the sliding seat, and the block is installed on the sliding seat.

[0021] Preferably, the clamping block comprises a limiting cavity and an arc segment, and the arc segment is installed on a side of the clamping block away from the sliding seat.

[0022] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0023] 1. The three-dimensional hydroponic device for cultivating seedlings based on the rice anther in vitro culture system provided by the present invention can move the driving plate through the driving of the electric push rod, thereby driving the moving frame to move, causing the rotating rod to rotate and then driving the top plate to rise, so that each seedling base rises synchronously, and the roots of the rice seedlings are separated from water. It can not only quickly complete the separation operation of all seedlings, which is convenient for inspection, but also reduces the work difficulty of the staff and improves efficiency.

[0024] 2. The first guard plate and the second guard plate in the present invention can limit the growth space of the roots of the rice seedlings. When the first guard plate and the second guard plate are close to each other, the growth space of the roots of the rice seedlings is reduced, which can not only prevent the roots from expanding to the surroundings and is conducive to the downward development of the roots, but also avoid the crooked growth of the roots, thereby improving the survival rate of subsequent rice transplantation.

[0025] 3. When the driving plate in the present invention moves, it can drive the gear ring to rotate. By driving the driving rod, the first guard plate and the second guard plate can be moved away from or close to each other. When the rice seedlings leave the water, they can expand to avoid hindering the movement of the root system. The root system space can also be restricted after the root system is reset to avoid damaging the root system.

[0026] In summary, the present invention can realize automatic water separation of the roots of rice seedlings, facilitate inspection, reduce work difficulty and improve efficiency; it can also limit the growth space of the roots of rice seedlings, prevent the roots from expanding and growing in all directions and avoid skewed growth, thereby improving the survival rate of subsequent transplantation; in addition, it can avoid hindering the movement of the roots when the rice seedlings are separated from water, and can also ensure that the roots are not damaged when the roots are reset.

[0027] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0029] Figure 1 A perspective view of a three-dimensional hydroponic device for cultivating seedlings based on a rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0030] Figure 2 It shows a schematic structural diagram of a three-dimensional hydroponic device for cultivating seedlings based on a rice anther in vitro culture system according to an embodiment of the present invention;

[0031] Figure 3 A schematic diagram of the exploded structure of a hydroponic box of a three-dimensional hydroponic device for anther culture seedlings in a rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0032] Figure 4 A schematic diagram of the exploded structure of a hydroponic box and a lifting mechanism of a three-dimensional hydroponic device for anther culture seedlings in a rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0033] Figure 5 A schematic diagram showing the coordination state of the lifting mechanism and the protection mechanism of the three-dimensional hydroponic device for cultivating seedlings in rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0034] Figure 6 A schematic diagram of the explosion structure of the lifting mechanism and the protection mechanism of the three-dimensional hydroponic device for anther culture seedlings in a rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0035] Figure 7 It shows a schematic structural diagram of a protection mechanism of a three-dimensional hydroponic device for cultivating seedlings in rice anther in vitro culture system according to an embodiment of the present invention;

[0036] Figure 8A schematic diagram of the explosion structure of the protection mechanism of the three-dimensional hydroponic device for cultivating seedlings in rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0037] Fig. 9 A schematic diagram showing the separation state of the mounting frame and the sliding seat of the three-dimensional hydroponic device for cultivating seedlings in rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0038] Fig.10 An enlarged view of point A of a three-dimensional hydroponic device for cultivating seedlings based on a rice anther in vitro culture system according to an embodiment of the present invention is shown;

[0039] Fig.11 A schematic structural diagram of a sliding seat and a clamping block of a three-dimensional hydroponic device for anther culture seedlings in a rice anther in vitro culture system according to an embodiment of the present invention is shown.

[0040] The reference numerals are as follows:

[0041] 1. bracket, 2. bracket, 3. hydroponic box, 31. slide, 4. support rod, 5. top plate, 6. placement hole, 7. seedling base, 8. lifting mechanism, 81. mobile frame, 82. first spring, 83. rotating rod, 84. push block, 85. drive plate, 86. slot, 87. electric push rod, 9. teeth, 10. protection mechanism, 101. mounting frame, 102. first protective plate, 103. second protective plate, 104. interactive groove, 105. slider, 106. slide, 107. gear ring, 108. drive rod, 109. extension frame, 1010. connecting rod, 1011. fixing rod, 1012. sliding seat, 1013. second spring, 1014. limiting cavity, 1015. arc segment, 1016. block. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0043] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] like Figure 1 and Figure 2 As shown, the three-dimensional hydroponic device for flower seedlings comprises: a support 1 and a plurality of hydroponic boxes 3, and a plurality of brackets 2 for placing the hydroponic boxes 3 are installed on the support 1. The support 1 is a triangular metal frame that can provide a stable support force, and the brackets 2 are installed in a horizontal direction to ensure that each hydroponic box 3 is supported by at least two brackets 2. The plurality of brackets 2 are arranged in a stepped manner in the vertical direction. When a plurality of hydroponic boxes 3 are placed on the brackets 2, it can be ensured that the space above each hydroponic box 3 is not blocked, thereby ensuring that the plant seedlings on the hydroponic boxes 3 can fully receive light.

[0045] In actual use, the equipment needs to be placed in a relatively closed nursery room. The nursery room environment is equipped with lighting lamps to provide good lighting conditions for the seedlings. The lighting lamps use red and blue LED lamps. Blue light promotes the growth of seedling leaves and the synthesis of chlorophyll, while red light promotes the stem elongation and root growth of the seedlings. The light intensity is 200μmol·m-2·s-1, and the daily lighting time is maintained at 12 hours. The nursery room is also equipped with air-conditioning equipment to keep the average environmental temperature at 26°C, with the indoor temperature controlled at 28°C during the day and the temperature lowered to 24°C at night. At the same time, the air-conditioning equipment can ventilate to avoid long-term sealing of the nursery room, which leads to an imbalance in the gas ratio of the environment in which the equipment is located. In addition, the equipment should also be used together with a carbon dioxide generator. Regular use can increase the indoor carbon dioxide concentration. The carbon dioxide generator in this embodiment uses the M398585 type, which is suitable for 200-400m 2 In order to utilize the space, multiple flower seedlings can be placed in the nursery room using the three-dimensional hydroponic device and equipped with a carbon dioxide generator. The concentration of carbon dioxide in the general atmosphere is about 0.04%. Using a carbon dioxide generator to increase the concentration of carbon dioxide to 0.13% can promote the growth and development of plant seedlings.

[0046] like Figure 2 and Figure 3As shown, the hydroponic box 3 is a hollow structure with an open top. The hydroponic box 3 of this embodiment is used for rice seedlings cultured in vitro by anthers, with a depth of 15 cm, and is filled with nutrient solution required for seedling cultivation; a drain valve is installed on the side wall of the hydroponic box 3, and the valve is normally closed, and is opened when the nutrient solution is replaced or the hydroponic box 3 is cleaned. Two support rods 4 are symmetrically installed on the hydroponic box 3, and a top plate 5 that can close the hydroponic box 3 is placed on the top of the hydroponic box 3. The top plate 5 is slidably installed on the two support rods 4. The limit of the support rods 4 can ensure that the top plate 5 only moves in the up and down directions. After the top plate 5 is attached to the hydroponic box 3, the evaporation of the nutrient solution can be reduced and the concentration of the nutrient solution can be maintained stable. Several placement holes 6 are evenly spaced on the top plate 5, and several seedling bases 7 are placed in the several placement holes 6 on the top plate 5. The diameter of the placement hole 6 is 4.5 cm. The seedling base 7 uses a planting basket made of common plastic material on the market. Its shape is a truncated cone shape that is wide on the top and narrow on the bottom, with a height of 4 cm, a bottom diameter of 4 cm, and a top diameter of 5 cm. It is placed in the placement hole 6, and the seedling base 7 can be placed stably without falling. Rock wool is placed in the seedling base 7, and the roots of the seedlings are inserted into it. The matrix can tightly wrap the roots, so that the seedlings remain upright in the hydroponic equipment to prevent lodging. When in use, ensure that the bottom of the seedling base 7 is immersed in the nutrient solution to ensure that the roots of the seedlings can be infiltrated by the nutrient solution.

[0047] During use, it can not only provide stable support force for the seedling base 7 to ensure that each seedling base 7 is immersed in the nutrient solution to the same depth, but also provide a limit for the top plate 5 to ensure that the lifting and lowering directions are fixed and will not tilt.

[0048] In order to ensure that the rice seedlings can rise uniformly and quickly, it is convenient for the roots to be out of water and ventilated, and to avoid the roots being soaked in nutrient solution for a long time and causing rot, refer to Figure 3 , Figure 4 and Figure 5 The following solution is proposed: A lifting mechanism 8 is installed in the hydroponic box 3, and the lifting mechanism 8 can raise or lower the top plate 5.

[0049] The lifting mechanism 8 includes two moving frames 81, a first spring 82, a rotating rod 83, a push block 84, a driving plate 85, a slot 86 and an electric push rod 87. The two moving frames 81 are symmetrically installed in the hydroponic box 3. Two slide slots 31 are symmetrically installed in the hydroponic box 3. The two moving frames 81 are engaged with the slide slots 31. The limit of the slide slots 31 can ensure that the moving frames 81 can move left and right stably without tilting or disengaging. A first spring 82 is installed between the moving frame 81 and the inner wall of the hydroponic box 3. When the moving frame 81 moves, the first spring 82 can be forced to stretch. After the external force is removed, the elastic force of the first spring 82 can be used to reset the moving frame 81. One end of the rotating rod 83 is rotatably mounted on the two moving frames 81, and the other end of the rotating rod 83 is rotatably mounted on the lower surface of the top plate 5. When the moving frame 81 moves, the rotating rod 83 can be rotated in cooperation with the limit of the top plate 5 by the support rod 4, so that the top plate 5 rises. Conversely, when the moving frame 81 moves in the opposite direction, the top plate 5 can be lowered and reset. The push block 84 is installed on the lower surface of the moving block 81, and the driving plate 85 is installed in the hydroponic box 3. Another slide groove 31 for limiting the driving plate 85 is also installed in the hydroponic box 3 to ensure the stable movement of the driving plate 85. The card slot 86 is opened on the driving plate 85, and the card slot 86 is engaged with the push block 84. The engagement of the two ensures that the lateral movement of the driving plate 85 can drive the push block 84 and the moving frame 81 to move together. The electric push rod 87 is installed on the hydroponic box 3, and the output end of the electric push rod 87 extends into the hydroponic box 3 and is connected to the drive plate 85. The connection between the electric push rod 87 and the hydroponic box 3 is waterproofed, and a waterproof ring is added to prevent the loss of nutrient solution. The model of the electric push rod 87 selected in this embodiment is ymd-608, and its output end can be locked in any position. Turning on the electric push rod 87 can drive the drive plate 85 to move and lock it, and locking the drive plate 85 to remain in the same position.

[0050] When in use, the electric push rod 87 is turned on to drive the driving plate 85 to move. By utilizing the cooperation of the card slot 86 and the push block 84, the movable frame 81 can be driven to move in the direction away from the electric push rod 87, and the first spring 82 is stretched at the same time. At this time, the rotating rod 83 rotates and pushes the top plate 5 to move upward, so that the roots of the seedlings in the seedling base 7 leave the nutrient solution in the hydroponic box 3. Conversely, when the output end of the electric push rod 87 retracts, it can cooperate with the pulling force of the first spring 82 to reset the top plate 5.

[0051] In actual use, all the seedling raising bases 7 can be uniformly moved upward stably to realize the rice seedling root system out of water, which is convenient for observing the root system, and the root system can be ventilated to avoid root rot. In addition, the seedling raising base 7 can be locked after it rises into place to ensure the stability of the device.

[0052] In the seedling stage, the root system of rice seedlings is not stable enough, and it is easy to grow horizontally during growth. This will cause the rice to tilt during transplanting, affecting normal growth. Moreover, if the root system of the seedlings grows horizontally instead of vertically downward, this problem will also occur. To solve this problem, combined with Figures 3 to 11 , the following scheme is proposed. Several groups of teeth 9 are evenly installed on the driving plate 85, and several protective mechanisms 10 are evenly installed in the inner cavity of the hydroponic box 3, and the several protective mechanisms 10 correspond to the several placement holes 6 respectively. By using the cooperation of the teeth 9 and the protective mechanisms 10, the lateral growth space of a single rice seedling can be limited, which not only prevents the root system from expanding and promoting the root system to grow vertically downward, but also provides a certain limit support for the root system to prevent the root system from tilting.

[0053] The protection mechanism 10 includes a mounting frame 101, a first guard plate 102, a second guard plate 103, an interactive groove 104, a slider 105, a slide 106, a gear ring 107 and a driving rod 108. The mounting frame 101 is fixedly installed in the hydroponic box 3, the first guard plate 102 and the second guard plate 103 are symmetrically installed on the mounting frame 101, the first guard plate 102 and the second guard plate 103 are both arranged in an L shape, and a space for protecting the root system of the seedling is formed between the first guard plate 102 and the second guard plate 103. There are several interactive grooves 104, which are respectively opened on the first guard plate 102 and the second guard plate 103. The interactive grooves 104 opened on the first guard plate 102 and the second guard plate 103 are staggered. When the first guard plate 102 and the second guard plate 103 are close to each other, the interactive grooves 104 are plugged into each other to avoid interference between the two. The mounting frame 101 corresponds to the seedling raising base 7. The roots of the rice seedlings can pass through the through holes on the mounting frame 101 and enter the space between the first guard plate 102 and the second guard plate 103. The roots are limited by the first guard plate 102 and the second guard plate 103, so that the roots are supported and the lateral space is limited to ensure that the roots grow downward. The slideway 106 is opened on the mounting frame 101. There are two sliders 105, which are respectively connected to the first guard plate 102 and the second guard plate 103, and the sliders 105 are slidably connected to the slideway 106. The slider 105 is cross-shaped, and its shape is adapted to the shape of the inner cavity of the slideway 106 to prevent the slider 105 from detaching from the slideway. At the same time, when the slider 105 slides in the slideway 106, the stability of the slider 105 can be ensured. The gear ring 107 is rotatably mounted on the mounting frame 101. The gear ring 107 is provided with a portion of the arc length of the outer teeth that matches the length of the teeth 9. The middle through hole of the gear ring 107 is coaxial with the placement hole 6, and the diameters are matched, which does not affect the seedling roots passing through the gear ring 107 to reach between the first guard plate 102 and the second guard plate 103. The gear ring 107 is meshedly connected with the teeth 9. When the driving plate 85 moves, the gear ring 107 can be rotated by utilizing the meshing connection between the teeth 9 and the gear ring 107. There are two driving rods 108, and the two driving rods 108 are symmetrically arranged relative to the gear ring 107. One end of the two driving rods 108 is rotatably installed on the gear ring 107, and the other ends of the two driving rods 108 are rotatably connected to the two sliders 105. When the gear ring 107 rotates, the two sliders 105 can respectively drive the first guard plate 102 and the second guard plate 103 to approach each other by pulling the two driving rods 108. When the gear ring 107 rotates in the opposite direction, the first guard plate 102 and the second guard plate 103 can be reset away from each other.

[0054] In this embodiment, the length of the slot 86 is greater than the length of the push block 84. In the initial state, the inner wall of the slot 86 away from the electric push rod 87 is in contact with the push block 84. When the drive plate 85 moves, the teeth 9 initially drive the gear ring 107 to rotate, and the position of the push block 84 remains unchanged. When the slot 86 is close to the side of the electric push rod 87 and is in contact with the push block 84, the teeth 9 are disengaged from the gear ring 107, and the push block 84 begins to move together with the movable frame 81.

[0055] An extension frame 109 is installed on the gear ring 107, and a clamping rod 1010 is installed on the extension frame 109. Clamping parts are symmetrically installed on the mounting frame 101. The clamping rod 1010 and the clamping parts cooperate with each other to limit the relative position of the gear ring 107 and the mounting frame 101, thereby ensuring that when the tooth 9 is out of mesh with the gear ring 107, the gear ring 107 will not rotate on its own.

[0056] The limiting part includes a fixed rod 1011, a sliding seat 1012, a second spring 1013 and a clamping block 1016. There are two fixed rods 1011, which are symmetrically mounted on the mounting frame 101. There are two sliding seats 1012, which are respectively mounted on the ends of the two fixed rods 1011 away from the mounting frame 101. The second spring 1013 is mounted between the fixed rod 1011 and the sliding seat 1012. When the sliding seat 1012 is forced to move in the direction close to the gear ring 107, the second spring 1013 will be compressed. After the external force is removed, the elastic force of the second spring 1013 can be used to reset the sliding seat 1012. The clamping block 1016 is mounted on the sliding seat 1012. The clamping block 1016 includes a limiting cavity 1014 and an arc segment 1015, and the arc segment 1015 is mounted on the side of the clamping block 1016 away from the sliding seat 1012. In the initial state, the clamping rod 1010 is clamped in the limiting cavity 1014 on one of the clamping blocks 1016. When the gear ring 107 rotates, the clamping rod 1010 cooperates with the arc segment 1015 to force the sliding seat 1012 to approach the gear ring 107, thereby causing the clamping rod 1010 to leave the limiting cavity 1014. When the gear ring 107 rotates and disengages from the tooth 9, the clamping rod 1010 cooperates with the arc segment 1015 of another clamping block 1016 to make the sliding seat 1012 approach the gear ring, thereby clamping it in the limiting cavity 1014 to achieve the limiting of the gear ring 107.

[0057] When in use, the first guard plate 102 and the second guard plate 103 are initially in a state of being close to each other. When the electric push rod 87 is turned on to move the drive plate 85, the teeth 9 begin to drive the gear ring 107 to rotate. At this time, the clamping rod 1010 cooperates with the arc segment 1015 to drive the sliding seat 1012 to move, thereby leaving the limiting cavity 1014. When the clamping rod 1010 contacts the arc segment 1015 of another clamping block 1016, the sliding seat 1012 is forced to move so that the clamping rod 1010 is clamped into the limiting cavity 1014 of the clamping block 1016. The elastic force of the second spring 1013 is used to reset the sliding seat 1012 and limit the clamping rod 1010. At this time, the gear ring 107 is disengaged from the gear 9 to ensure that the gear ring 107 will not rotate. In this process, the two sliders 105 can be moved away from each other by the cooperation of the toothed ring 107 and the driving rod 108, so that the first guard plate 102 and the second guard plate 103 can be separated from each other, and the space where the seedling root system is located can be opened. Then, when the slot 86 is close to the side of the electric push rod 87 and fits with the push block 84, the push block 84 starts to move together with the mobile frame 81, so that the top plate 5 is lifted, and the root system is out of water. When it is necessary to end the out of water state, the output end of the cylinder 87 retracts, and with the pulling force of the first spring 82, the mobile frame 81 will be reset first, so that the top plate 5 drives the seedling root system into the water and resets, and then the teeth 9 are meshed with the toothed ring 107 again, driving the first guard plate 102 and the second guard plate 103 to approach each other again, and the seedling root system is limited and protected.

[0058] During use, it can not only support the roots of rice seedlings, prevent root growth, and help avoid the lateral spread of roots, but also automatically open the root growth space when the roots are out of water, to avoid the roots being pulled and broken when moving due to the narrow space. At the same time, it can automatically reduce the root space after the roots are reset after entering the water, and provide support and protection for the roots again.

[0059] In addition, an embodiment of the present invention further provides a method for using a three-dimensional hydroponic device for cultivating seedlings, comprising the following steps:

[0060] Add nutrient solution to hydroponic tank 3;

[0061] Place the hydroponic base 7 planted with rice seedlings into the placement hole 6 so that the bottom of the hydroponic base 7 contacts the nutrient solution to ensure that the roots of the seedlings can receive nutrients from the nutrient solution;

[0062] When the seedlings need to be removed from the water, the electric push rod 87 is turned on to drive the driving plate 85 to move, and the teeth 9 are preferentially used to drive the gear ring 107 to rotate, so that the first protection plate 102 and the second protection plate 103 are driven by the two driving rods 108 to separate from each other, so that the two are away from the plant roots;

[0063] Then the driving plate 85 continues to move, pushing the moving frame 81 to move, and the top plate 5 drives all the hydroponic supports 7 to rise by driving the rotating rod 83, so that the plant roots leave the nutrient solution;

[0064] When the plant root system is reset, the output end of the electric push rod 87 retracts, and the driving plate 85 moves in the opposite direction, so that the movable frame 81 is reset first, and then the top plate 5 and the hydroponic base 7 are reset by pulling the rotating rod 83;

[0065] The driving plate 85 continues to reset, and uses the teeth 9 to rotate the gear ring 107 in the opposite direction to reset it, so that the first protective plate 102 and the second protective plate 103 are brought closer to each other again to support and protect the plant roots.

[0066] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-dimensional hydroponic device for rice anther culture seedlings based on a rice anther in vitro culture system, characterized in that: include: A support (1) and a plurality of hydroponic boxes (3), wherein a plurality of brackets (2) for placing the hydroponic boxes (3) are mounted on the support (1); The hydroponic box (3) is a hollow structure with an open top. A top plate (5) capable of closing the hydroponic box (3) is placed on the top of the hydroponic box (3). A plurality of seedling raising bases (7) are installed on the top plate (5). A lifting mechanism (8) is installed in the hydroponic box (3). The lifting mechanism (8) can raise or lower the top plate (5).

2. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 1, characterized in that: Two supporting rods (4) are symmetrically mounted on the hydroponic box (3), and the top plate (5) is slidably mounted on the two supporting rods (4); A plurality of placement holes (6) are equidistantly provided on the top plate (5), and a plurality of the seedling raising bases (7) are placed in the plurality of the placement holes (6).

3. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 2, characterized in that: The lifting mechanism (8) comprises two moving frames (81), a rotating rod (83), a push block (84), a driving plate (85), a slot (86) and an electric push rod (87). The two moving frames (81) are symmetrically mounted in the hydroponic box (3). One end of the rotating rod (83) is rotatably mounted on the two moving frames (81), and the other end of the rotating rod (83) is rotatably mounted on the lower surface of the top plate (5). The push block (84) is mounted on the lower surface of the moving block (81). The driving plate (85) is mounted in the hydroponic box (3). The slot (86) is provided on the driving plate (85), and the slot (86) is engaged with the push block (84). The electric push rod (87) is mounted on the hydroponic box (3), and the output end of the electric push rod (87) extends into the hydroponic box (3) and is connected to the driving plate (85).

4. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 3, characterized in that: A first spring (82) is installed between the movable frame (81) and the inner wall of the hydroponic box (3).

5. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 4, characterized in that: Two slide grooves (31) are symmetrically installed in the hydroponic box (3), and the two movable frames (81) are clamped with the slide grooves (31).

6. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 5, characterized in that: The length of the card slot (86) is greater than the length of the push block (84).

7. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 6, characterized in that: A plurality of groups of teeth (9) are equidistantly mounted on the driving plate (85), a plurality of protection mechanisms (10) are equidistantly mounted in the inner cavity of the hydroponic box (3), and the plurality of protection mechanisms (10) correspond to the plurality of placement holes (6), respectively.

8. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 7, characterized in that: The protection mechanism (10) comprises a mounting frame (101), a first guard plate (102), a second guard plate (103), an interactive groove (104), a slider (105), a slideway (106), a gear ring (107) and a driving rod (108); the mounting frame (101) is fixedly mounted in the hydroponic box (3); the first guard plate (102) and the second guard plate (103) are symmetrically mounted on the mounting frame (101); the first guard plate (102) and the second guard plate (103) are both arranged in an L shape; and a space for protecting the root system of the seedling is formed between the first guard plate (102) and the second guard plate (103); and a plurality of interactive grooves (104) are respectively arranged on the first guard plate (102) and the second guard plate (103); The slideway (106) is opened on the mounting frame (101), and there are two sliders (105), which are respectively connected to the first guard plate (102) and the second guard plate (103), and the slider (105) is slidably connected to the slideway (106); the gear ring (107) is rotatably mounted on the mounting frame (101), and the gear ring (107) is meshingly connected with the teeth (9), and there are two driving rods (108), and the two driving rods (108) are symmetrically arranged relative to the gear ring (107), one end of the two driving rods (108) is respectively rotatably mounted on the gear ring (107), and the other end of the two driving rods (108) is respectively rotatably connected to the two sliders (105).

9. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 8, characterized in that: An extension frame (109) is installed on the gear ring (107), a clamping rod (1010) is installed on the extension frame (109), and clamping parts are symmetrically installed on the mounting frame (101), and the clamping rod (1010) and the clamping parts cooperate with each other to limit the relative position of the gear ring (107) and the mounting frame (101); The limiting portion comprises a fixed rod (1011), a sliding seat (1012), a second spring (1013) and a clamping block (1016); there are two fixed rods (1011) which are symmetrically mounted on the mounting frame (101); there are two sliding seats (1012) which are respectively mounted on one end of the two fixed rods (1011) away from the mounting frame (101); the second spring (1013) is mounted between the fixed rod (1011) and the sliding seat (1012); and the clamping block (1016) is mounted on the sliding seat (1012).

10. The three-dimensional hydroponic device for rice anther culture seedlings based on the rice anther in vitro culture system according to claim 9, characterized in that: The clamping block (1016) comprises a limiting cavity (1014) and an arc segment (1015), and the arc segment (1015) is installed on a side of the clamping block (1016) away from the sliding seat (1012).

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