A device for growing seedlings

Abstract

The present application relates to a kind of seedling raising device, including bearing seat and multiple holes, multiple described hole is located on the upper side of the bearing seat, every adjacent two described hole is spaced apart, the upper end of the hole is open, the size of the hole gradually expands from top to bottom. Since the above technical solution, when the seedling raising device is used to cultivate plant seedlings, the divergence of plant seedling root system can be improved, and after the plant seedlings are transplanted to farmland, it is more beneficial to the rapid growth of plant seedlings.

Description

Technical Field

[0001] This invention relates to the field of plant seedling technology, and more specifically to a seedling device. Background Technology

[0002] Seedling trays are currently a popular tool for cultivating plant seedlings. Existing seedling trays have multiple holes. When seedlings are needed, seedling substrate is filled into the holes, and then plant seeds are buried in the substrate, allowing seedling cultivation to begin. During the seedling growth process, the seedling roots grow downwards in the seedling substrate, forming a dense root network at the bottom of the holes. This root network binds the seedling substrate together into a cohesive whole that is not easily dispersed.

[0003] The existing seedling trays have holes that gradually decrease in size from top to bottom, meaning the holes have a large opening and a small cavity. This is not conducive to the expansion of the seedling roots. The plant roots tend to bend and tangle at the bottom of the holes, resulting in low root dispersion. This is not conducive to the rapid growth of the seedlings after they are transplanted into the field. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a seedling raising device to solve the technical problem that the existing seedling trays have a structure with a large opening and a small cavity, which is not conducive to the expansion of the root system of plant seedlings.

[0005] This invention is achieved through the following technical solution:

[0006] A seedling raising device includes a support base and multiple seedling slots. The multiple seedling slots are all disposed on the upper side of the support base. Each pair of adjacent seedling slots is spaced apart. The upper end of each seedling slot is open. The size of each seedling slot gradually increases from top to bottom.

[0007] Furthermore, the cavity is surrounded by multiple side plates arranged sequentially along the lower edge of the cavity. The side plates are inclined outward from top to bottom, and the edges of each pair of adjacent side plates abut against each other. The lower end of the side plate is rotatably connected to the support seat so that the upper end of the side plate swings outward.

[0008] It also includes a locking drive unit, which is disposed on the support base. The locking drive unit is used to lock the angle of the multiple side plates so that the edges of each pair of adjacent side plates remain abutting each other. The locking drive unit is also used to drive the multiple side plates to rotate.

[0009] Furthermore, the upper side surface of the support base is recessed downwards at the positions corresponding to the lower ends of the multiple side plates to form grooves; a cylinder is fixed at the lower end of each of the multiple side plates, the cylinder is arranged along the lower edge of the side plate, the multiple cylinders are located in the multiple grooves one by one, the cylinders cooperate with the grooves, the upper part of the cylinder protrudes upwards from the groove opening, and the volume of the part of the cylinder located in the groove is greater than the volume of the part of the cylinder located outside the groove.

[0010] Furthermore, the support includes a support plate and a bracket. A first through hole is formed on the support plate at the position corresponding to the lower outer side of each side plate. The bracket is used to horizontally support the support plate. The groove is provided on the upper side of the support plate. The lower end of the side plate is rotatably connected to the support plate.

[0011] The locking drive unit includes a slant rod, a ball, a push-pull rod, and a locking drive assembly; there are multiple slant rods, which are fixed one-to-one on the outer side surfaces of multiple side plates. The slant rods are inclined outward from bottom to top, and a circular channel is formed inside the slant rod. The channel is arranged along the axis of the slant rod. A strip-shaped hole is formed by recessing the outer side surface of the slant rod inward. The strip-shaped hole connects the channel and the outer side surface of the slant rod, and the strip-shaped hole is arranged parallel to the channel.

[0012] There are multiple spheres, and the multiple spheres are slidably fitted into the multiple channels in a one-to-one correspondence. There are also multiple push-pull rods, which are arranged vertically. The multiple push-pull rods are slidably fitted into the multiple first through holes in a one-to-one correspondence. The upper ends of the multiple push-pull rods pass through the multiple strip holes in a one-to-one correspondence and are fixedly connected to the multiple spheres in a one-to-one correspondence. The lower ends of the multiple push-pull rods are all located on the lower side of the support plate.

[0013] The locking drive assembly is mounted on the bracket and located below the support plate. The upper end of the locking drive assembly is fixedly connected to the lower ends of the plurality of push-pull rods, and the lower end of the locking drive assembly is fixedly connected to the bracket. The locking drive assembly is a structure that can elastically extend and retract vertically. The locking drive assembly is used to provide an upward elastic force to the plurality of push-pull rods.

[0014] Furthermore, the locking drive assembly includes a fixed plate, a connecting plate, and a helical spring. The fixed plate is fixedly connected to the bracket, and the connecting plate is located above the fixed plate and fixedly connected to the lower ends of the multiple push-pull rods. The helical spring is in a compressed state with its lower end abutting against the fixed plate and its upper end abutting against the connecting plate.

[0015] Furthermore, the locking drive unit also includes a first pushing part, which is disposed on the support plate and is used to push the upper end of the locking drive assembly downward.

[0016] Furthermore, the support plate is also provided with a plurality of second through holes; the first pushing part includes a placement plate and a plurality of pushing rods, the placement plate is horizontally disposed above the support plate, the plurality of pushing rods are slidably engaged in the plurality of second through holes in a one-to-one correspondence, the lower end of the pushing rod abuts against the upper end of the locking drive assembly, and the upper end of the pushing rod is fixedly connected to the placement plate.

[0017] Furthermore, the locking drive unit also includes a second pushing part, which is used to push the upper end of the locking drive assembly downward.

[0018] Furthermore, a third through hole is formed in the middle of the bearing plate; the second pushing part includes a first internal threaded sleeve and a screw. The first internal threaded sleeve is fixed on the upper side of the bearing plate, and the inner cavity of the first internal threaded sleeve is directly opposite the third through hole. The screw is screwed into the first internal threaded sleeve, and the lower end of the screw passes through the third through hole and is located on the lower side of the bearing plate.

[0019] Furthermore, a second internally threaded sleeve is fixedly mounted on the bracket, and the second internally threaded sleeve is arranged in a horizontal direction.

[0020] The beneficial effects of this invention are as follows:

[0021] When using the seedling raising device described in this invention for plant seedling cultivation, the seedling trays have a structure that gradually expands from top to bottom, forming a structure with a small opening and a large cavity. This facilitates the expansion of the seedling root system, reduces the number of roots that bend and tangle at the bottom of the tray, and improves the root dispersion. After transplanting the seedlings to the field, this promotes rapid growth. Furthermore, the small opening and large cavity structure minimizes the exposed substrate area at the top of the tray, reducing the area for weed growth and making weed removal from the seedling tray easier.

[0022] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a seedling raising device according to the present invention;

[0024] Figure 2 for Figure 1 Enlarged view of 'a' in the middle;

[0025] Figure 3 This is a top view of a seedling raising device according to the present invention;

[0026] Figure 4 for Figure 3 AA section view;

[0027] Figure 5 for Figure 4 A magnified view of b in the middle.

[0028] In the diagram: 1. Cavity; 2. Side plate; 3. Cylinder; 4. Support plate; 5. Bracket; 6. Diagonal rod; 7. Ball; 8. Push-pull rod; 9. Channel; 10. Strip hole; 11. Fixing plate; 12. Connecting plate; 13. Helical spring; 14. Placement plate; 15. Push rod; 16. First internal threaded sleeve; 17. Screw; 18. Second internal threaded sleeve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the above description of the present invention, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is conventionally placed during use. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0034] Please see Figure 1-5 The present invention provides a technical solution: a seedling raising device, including a support base and a plurality of seedling slots 1, wherein the plurality of seedling slots 1 are all disposed on the upper side of the support base, and each pair of adjacent seedling slots 1 are spaced apart, wherein the upper end of the seedling slot 1 is open, and the size of the seedling slot 1 gradually increases from top to bottom.

[0035] When using the seedling raising device described in this invention to cultivate plant seedlings, seedling substrate is filled into the seedling tray 1, and plant seeds are buried in the seedling substrate. The plant seeds can germinate and grow into plant seedlings in the seedling tray 1. During the growth of the plant seedlings, the roots of the plant seedlings will continuously grow downward in the seedling substrate and form a dense root network at the bottom of the seedling tray. The root network connects the seedling substrate into a whole that is not easily dispersed.

[0036] Because the seedling tray 1 has a structure that gradually expands from top to bottom, forming a structure with a small opening and a large cavity, it is more conducive to the expansion of the seedling roots. It reduces the number of roots that bend and tangle in the lower part of the tray 1, increasing the root spread and promoting faster growth after transplanting. Furthermore, the small opening and large cavity structure minimizes the exposed substrate area at the top of the tray 1, reducing the area for weed growth and making weed removal from the seedling tray easier.

[0037] In this embodiment, the cavity 1 is surrounded by multiple side plates 2 arranged sequentially along the lower edge of the cavity 1. The side plates 2 are inclined outward from top to bottom. Here, "outward" refers to the direction away from the middle of the cavity 1. In the following description, "outward" has this meaning. Conversely, "inward" refers to the direction towards the middle of the cavity 1. In the following description, "inward" has this meaning. The edges of each pair of adjacent side plates 2 abut against each other. That is, in each pair of adjacent side plates 2, the edge of one side plate 2 near the other side plate 2 abuts against the edge of the other side plate 2 near the first side plate 2. The lower end of the side plate 2 is rotatably connected to the support seat so that the upper end of the side plate 2 can swing outward.

[0038] The seedling raising device of the present invention further includes a locking drive unit, which is disposed on the support seat. The locking drive unit is used to lock the angle of the multiple side plates 2 so that the edges of each pair of adjacent side plates 2 remain mutually abutting. The locking drive unit is also used to drive the multiple side plates 2 to rotate.

[0039] When the seedling device of the present invention is in its initial state, the side plate 2 is tilted outward from top to bottom, and the edges of each pair of adjacent side plates 2 abut against each other. The locking drive unit locks the angle of the multiple side plates 2, so that the upper ends of the multiple side plates 2 cannot swing outward.

[0040] When the seedlings in the planting trench 1 have grown to the point where they are ready for transplanting, the locking drive unit drives multiple side plates 2 to rotate, causing the upper ends of the multiple side plates 2 to swing outwards. This rotates the multiple side plates 2 to a state of tilting outwards from bottom to top. At this time, the root system of the seedlings and the seedling substrate formed by the root network of the seedlings, which is connected into a whole that is not easily dispersed, lose the obstruction of the side plates 2. The seedlings and the seedling substrate can be easily removed from the seedling device of the present invention, and the roots and leaves of the seedlings are not easily damaged when the seedlings are removed from the seedling device of the present invention.

[0041] The seedling raising device described in this invention can improve the root spread of plant seedlings and also make the plant seedlings easier to remove.

[0042] In this embodiment, the upper side of the support seat is recessed downwards at the lower ends of the multiple side plates 2 to form grooves; a cylinder 3 is fixedly provided at the lower end of each of the multiple side plates 2, the cylinder 3 is arranged along the lower edge of the side plate 2, and multiple cylinders 3 are located in multiple grooves in a one-to-one correspondence. The cylinder 3 cooperates with the groove, and the upper part of the cylinder 3 protrudes upwards from the groove opening. The volume of the part of the cylinder 3 located in the groove is greater than the volume of the part of the cylinder 3 located outside the groove.

[0043] Since the cylinder 3 cooperates with the groove, the cylinder 3 can rotate within the groove. Since the cylinder 3 is fixed to the lower end of the corresponding side plate 2, and the cylinder 3 is set along the lower edge of the side plate 2, the lower end of the side plate 2 can be rotatably connected to the support seat, and the upper end of the side plate 2 can swing outward.

[0044] Because the volume of the portion of the cylinder 3 located inside the groove is greater than the volume of the portion of the cylinder 3 located outside the groove, the cylinder 3 cannot be ejected upwards from the groove.

[0045] In this embodiment, the support includes a support plate 4 and a bracket 5. A first through hole is formed on the support plate 4 at the position corresponding to the lower outer side of each side plate 2. The bracket 5 is used to horizontally support the support plate 4. The groove 1 is provided on the upper side of the support plate 4. The lower end of the side plate 2 is rotatably connected to the support plate 4.

[0046] The locking drive unit includes a slant rod 6, a ball 7, a push-pull rod 8, and a locking drive assembly; there are multiple slant rods 6, which are fixed one-to-one on the outer surfaces of multiple side plates 2. The slant rods 6 are inclined outward from bottom to top. A circular channel 9 is formed inside the slant rod 6. The channel 9 is arranged along the axis of the slant rod 6. A strip hole 10 is formed by recessing the outer surface of the slant rod 6 inward. The strip hole 10 connects the channel 9 and the outer surface of the slant rod 6. The strip hole 10 is arranged parallel to the channel 9.

[0047] There are multiple spheres 7, and the multiple spheres 7 are slidably fitted into the multiple channels 9 in a one-to-one correspondence. There are also multiple push-pull rods 8, which are arranged vertically. The multiple push-pull rods 8 are slidably fitted into the multiple first through holes in a one-to-one correspondence. The upper ends of the multiple push-pull rods 8 pass through the multiple strip holes 10 in a one-to-one correspondence and are fixedly connected to the multiple spheres 7 in a one-to-one correspondence. The lower ends of the multiple push-pull rods 8 are all located on the lower side of the support plate 4.

[0048] The locking drive assembly is mounted on the bracket 5 and located below the support plate 4. The upper end of the locking drive assembly is fixedly connected to the lower ends of the multiple push-pull rods 8, and the lower end of the locking drive assembly is fixedly connected to the bracket 5. The locking drive assembly is a structure that can elastically extend and retract vertically. The locking drive assembly is used to provide an upward elastic force to the multiple push-pull rods 8.

[0049] Since the inclined rod 6 is inclined outward from bottom to top, the channel 9 is arranged along the axis of the inclined rod 6, and the channel 9 is also in a state of being outward from bottom to top.

[0050] In the initial state of the seedling device described in this invention, the side plates 2 are inclined from top to bottom away from the center of the seedling tray 1, and the edges of each adjacent pair of side plates 2 abut against each other. The locking drive assembly provides an upward elastic force to the plurality of push-pull rods 8, the push-pull rods 8 provide an upward thrust to the corresponding spheres 7, and the spheres 7 provide an upward thrust to the corresponding inclined rods 6. Since the channels 9 are in a bottom-up outward state, the spheres 7 slide within the corresponding channels 9. The upward thrust provided by the spheres 7 to the inclined rods 6 can form a component force in the direction of the center of the seedling tray 1, so that the edges of each adjacent pair of side plates 2 can remain in abutting against each other. With this structure, the locking drive unit can lock the angle of the plurality of side plates 2 so that the edges of each adjacent pair of side plates 2 remain in abutting against each other.

[0051] When it is necessary to drive multiple side plates 2 to rotate so that the upper ends of all side plates 2 swing outward, the upper end of the locking drive assembly is pressed down, causing the upper end of the locking drive assembly to move downward. During the downward movement of the upper end of the locking drive assembly, the upper end of the locking drive assembly pulls down multiple push-pull rods 8. Each push-pull rod 8 pulls down multiple balls 7 in a corresponding manner. Each ball 7 can then drive multiple diagonal rods 6 to rotate in a corresponding manner, causing the upper ends of the diagonal rods 6 to swing outward. At this time, the diagonal rods 6 can then drive multiple side plates 2 to rotate outward, causing the upper ends of the multiple side plates 2 to swing outward. With this structure, the locking drive unit can drive multiple side plates 2 to rotate, causing the upper ends of all side plates 2 to swing outward.

[0052] Pressing down on the upper end of the locking drive assembly causes the upper ends of the multiple side plates 2 to swing outward, allowing all the side plates 2 to rotate to a state of tilting outward from bottom to top. This removes the obstruction of the side plates 2 from the seedling roots and the seedling substrate, which are connected by the root network formed by the seedling roots and are not easily dispersed. This makes it easier to remove the seedlings and seedling substrate from the seedling device of the present invention.

[0053] By simply pressing down on the upper end of the locking drive assembly, the side plates 2 around the multiple seedlings 1 can be rotated to a state of tilting outward from bottom to top, thereby removing the obstruction to the seedling substrate of multiple seedlings and further improving the ease of use of the seedling device of the present invention.

[0054] The locking drive assembly elastically elongates under its own elastic force, allowing its upper end to move upward and push multiple push-pull rods 8. Each push-pull rod 8 correspondingly pushes multiple balls 7 upward, which in turn drive multiple inclined rods 6 to rotate, causing their upper ends to swing inward. Simultaneously, each inclined rod 6 drives multiple side plates 2 to rotate, causing their upper ends to swing inward. After the locking drive assembly elongates to a certain length, the edges of each pair of adjacent side plates 2 return to their abutting state. At this point, the seedling device of the present invention returns to its initial state as described above.

[0055] In this embodiment, the locking drive assembly includes a fixing plate 11, a connecting plate 12, and a helical spring 13. The fixing plate 11 is fixedly connected to the bracket 5. The connecting plate 12 is located above the fixing plate 11 and is fixedly connected to the lower ends of multiple push-pull rods 8. The helical spring 13 is in a compressed state, with its lower end abutting against the fixing plate 11 and its upper end abutting against the connecting plate 12.

[0056] When the seedling device of the present invention is in its initial state, the helical spring 13 is in a compressed state, and the helical spring 13 provides an upward elastic force to the connecting plate 12. The connecting plate 12 transmits the elastic force upward to the multiple push-pull rods 8. With this structure, the locking drive assembly can provide an upward elastic force to the multiple push-pull rods 8.

[0057] When the connecting plate 12 is pressed down, the helical spring 13 is further compressed, and the connecting plate 12 can move downward. The upper end of the locking drive assembly can also move downward. With this structure, the locking drive assembly is a structure that can elastically extend and retract vertically.

[0058] The helical spring 13 is elastically extended under its own elastic action, and the helical spring 13 pushes the connecting plate 12 upward, so that the locking drive assembly can also elastically extend under its own elastic action.

[0059] In this embodiment, the locking drive unit further includes a first pushing part, which is disposed on the support plate 4. The first pushing part is used to push the upper end of the locking drive assembly downward. Specifically, the first pushing part is used to push the connecting plate 12 downward. When it is necessary to press the upper end of the locking drive assembly downward, the upper end of the locking drive assembly can be pushed downward by the first pushing part.

[0060] In this embodiment, the support plate 4 is also provided with a plurality of second through holes; the first pushing part includes a placement plate 14 and a plurality of pushing rods 15. The placement plate 14 is horizontally disposed above the support plate 4, and the plurality of pushing rods 15 are slidably engaged in the plurality of second through holes in a one-to-one correspondence. The lower end of the pushing rod 15 abuts against the upper end of the locking drive assembly. Specifically, the lower end of the pushing rod 15 abuts against the connecting plate 12, and the upper end of the pushing rod 15 is fixedly connected to the placement plate 14.

[0061] Moving the placement plate 14 upwards causes the multiple push rods 15 to move upwards as well, so that each push rod 15 is pulled out of the multiple second through holes one by one. At this time, the first push part can be removed from the support plate 4.

[0062] The placement plate 14 and the plurality of push rods 15 are moved above the support plate 4, and then the placement plate 14 and the plurality of push rods 15 are moved downward, so that the lower ends of the plurality of push rods 15 pass through the plurality of second through holes one by one and abut against the upper end of the locking drive assembly downward. At this time, the first push part can be installed on the support plate 4.

[0063] During the cultivation of plant seedlings using the seedling raising device described in this invention, the first pressing part is placed in a state where it is removed from the support plate 4. This prevents the support plate 4 and the pressing rod 15 from blocking the light required by the plant seedlings, ensuring that the first pressing part does not affect the photosynthesis of the plant seedlings.

[0064] When it is necessary to press down on the upper end of the locking drive assembly, the first pushing part is installed on the support plate 4. Then, the remaining part of another seedling device, excluding the first pushing part, is supported on the placement plate 14. The upper end of the locking drive assembly can be pressed down by the weight of the other seedling device, the weight of the placement plate 14, and the weight of the multiple pushing rods 15. After pressing the upper end of the locking drive assembly down a certain distance, the side plate 2 releases its obstruction of the plant seedling roots and the cultivation substrate, the helical spring 13 can no longer be compressed, and the placement plate 14 is located above the plant seedling, allowing a hand to reach between the placement plate 14 and the support plate 4 to pick up the plant seedling on the support plate 4.

[0065] After all the seedlings on the bottommost seedling device have been removed, the above steps can be repeated to remove the seedlings from the first seedling device above the bottommost seedling device. After removing the seedlings from the first seedling device above the bottommost seedling device, the above steps can be repeated to remove the seedlings from the second seedling device above the bottommost seedling device, and so on, allowing multiple seedling devices to be stacked sequentially from bottom to top. This allows for the simultaneous removal of seedlings from the seedling devices and their stacking for storage, making the seedling device of this invention more convenient to use.

[0066] For the seedling device stacked on top, the first pushing part is not installed on the seedling device. Instead, the upper end of the locking drive assembly of the seedling device is pushed down by hand to release the obstruction of the side plate to the root system of the plant seedling and the culture medium of the plant seedling.

[0067] In this embodiment, the locking drive unit further includes a second pushing part, which is used to push the upper end of the locking drive assembly downward.

[0068] When it is necessary to place seedling substrate into the seedling tray 1, the first pushing part is in a state of being removed from the supporting plate 4. The second pushing part pushes down on the upper end of the locking drive assembly, causing the upper ends of the multiple side plates 2 to swing outward a certain distance, so that the upper ends of the side plates 2 around each seedling tray 1 are in an outward-opening state, and the side plates 2 around each seedling tray 1 are in a state of tilting outward from bottom to top. Then, it is easier to place seedling substrate into the seedling tray 1.

[0069] In this embodiment, a third through hole is formed in the middle of the bearing plate 4; the second pushing part includes a first internal threaded sleeve 16 and a screw 17. The first internal threaded sleeve 16 is fixed on the upper side of the bearing plate 4, and the inner cavity of the first internal threaded sleeve 16 is directly opposite to the third through hole. The screw 17 is screwed into the first internal threaded sleeve 16, and the lower end of the screw 17 passes through the third through hole and is located on the lower side of the bearing plate 4.

[0070] Before filling the seedling substrate into the planting hole 1, the first pressing part is placed in a position detached from the support plate 4. The screw 17 is screwed into the first internal threaded sleeve 16, and then the screw 17 is rotated within the first internal threaded sleeve 16, causing the screw 17 to move downwards. As the screw 17 passes through the third through hole and continues to move downwards, the screw 17 can press down against and push the upper end of the locking drive assembly, thereby further compressing the locking drive assembly. The second pressing part can then push down on the upper end of the locking drive assembly.

[0071] After the side plates 2 around each seedling tray 1 are in a state of outward inclination from bottom to top, the seedling substrate can be filled into the seedling tray 1. Since the side plates 2 around the seedling tray 1 are in a state of outward inclination from bottom to top, the gap between each pair of adjacent side plates 2 gradually increases from bottom to top. In the process of filling the seedling substrate into the seedling tray 1, the seedling substrate is first filled into the lower part of the seedling tray 1, and then the seedling substrate is filled into the upper part of the seedling tray 1.

[0072] The gap between the lower parts of each pair of adjacent side plates 2 is small, so that when the seedling substrate is filled into the lower part of the seedling trough 1, the seedling substrate is not easy to fall out from the gap between the side plates 2. After the seedling substrate is filled into the lower part of each seedling trough 1, the screw 17 is rotated in the threaded sleeve, so that the screw 17 moves upward a certain distance. At this time, the locking drive assembly can elastically extend a certain length under its own elastic action. The upper end of the locking drive assembly can move upward a certain distance and push the multiple push-pull rods 8 upward a certain distance. The multiple push-pull rods 8 can push the multiple balls 7 upward a certain distance in a corresponding manner. The multiple balls 7 can swing the upper ends of the multiple inclined rods 6 inward a certain distance in a corresponding manner. The multiple inclined rods 6 can drive the multiple side plates 2 to rotate in a corresponding manner, so that the upper ends of the multiple side plates 2 swing inward a certain distance. At this time, the gap between the upper parts of each pair of adjacent side plates 2 will also decrease. Then, seedling substrate can be filled into the upper part of the seedling trough 1. When filling the upper part of the seedling trough 1 with seedling substrate, the gap between the upper parts of each two adjacent side plates 2 can be made smaller. When filling the upper part of the seedling trough 1 with seedling substrate, the seedling substrate is not easy to fall out from the gap between the side plates 2.

[0073] After the seedling substrate is filled into both the lower and upper parts of the seedling tray 1, the screw 17 is rotated within the first internal threaded sleeve 16, causing it to move upwards. Finally, the screw 17 is removed from the threaded sleeve and placed there. This prevents the screw 17 from blocking the light needed by the seedlings during seedling cultivation, thus promoting photosynthesis. As the screw 17 continues to move upwards, the locking drive assembly extends under its own elasticity and pushes multiple push-pull rods 8 upwards, causing the upper ends of the multiple side plates 2 to swing inwards until the edges of each connected side plate 2 return to a mutually abutting state. Seedlings can then be cultivated using the seedling device described in this invention. During the inward swinging of the upper ends of the multiple side plates 2, the side plates 2 gradually compact the seedling substrate within the seedling tray 1. After the edges of each connected side plate 2 return to a mutually abutting state, the seedling substrate within the seedling tray 1 is in a relatively dense state.

[0074] Although the seedling tray 1 is smaller at the top and larger at the bottom during the seedling cultivation process, it can be made to have a larger opening when the seedling substrate is placed in the seedling tray 1. This allows the seedling substrate to be filled into the seedling tray 1 layer by layer from bottom to top more conveniently, and makes it easier to fill the seedling substrate into the seedling tray 1 more densely, so that the seedling substrate in the lower part of the seedling tray 1 is less likely to have voids.

[0075] In this embodiment, a second internally threaded sleeve 18 is fixedly mounted on the bracket 5, and the second internally threaded sleeve 18 is arranged in a horizontal direction. After the screw 17 is removed from the first internally threaded sleeve 16, the screw 17 can be screwed into the second internally threaded sleeve 18. At this time, it can prevent the screw 17 from blocking the light needed by the plant seedlings and reduce the possibility of the screw 17 being lost.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A seedling raising device, characterized in that: It includes a support base and multiple slots, all of which are provided on the upper side of the support base. Each pair of adjacent slots are spaced apart. The upper end of each slot is open, and the size of the slots gradually increases from top to bottom. The cavity is formed by multiple side plates arranged sequentially along the lower edge of the cavity. The side plates are inclined outward from top to bottom, and the edges of each pair of adjacent side plates abut against each other. The lower end of the side plate is rotatably connected to the support seat so that the upper end of the side plate swings outward. It also includes a locking drive unit, which is disposed on the support base. The locking drive unit is used to lock the angle of the multiple side plates so that the edges of each pair of adjacent side plates remain abutting each other. The locking drive unit is also used to drive the multiple side plates to rotate. The upper side of the support base is recessed downwards at the lower ends of the multiple side plates to form grooves; a cylinder is fixed at the lower end of each of the multiple side plates, the cylinder is arranged along the lower edge of the side plate, the multiple cylinders are located in the multiple grooves one by one, the cylinders cooperate with the grooves, the upper part of the cylinder protrudes upwards from the groove opening, and the volume of the part of the cylinder located in the groove is greater than the volume of the part of the cylinder located outside the groove; The support includes a support plate and a bracket. A first through hole is formed on the support plate at the position corresponding to the lower outer side of each side plate. The bracket is used to horizontally support the support plate. The groove is provided on the upper side of the support plate. The lower end of the side plate is rotatably connected to the support plate. The locking drive unit includes a slant rod, a ball, a push-pull rod, and a locking drive assembly; there are multiple slant rods, which are fixed one-to-one on the outer side surfaces of multiple side plates. The slant rods are inclined outward from bottom to top, and a circular channel is formed inside the slant rod. The channel is arranged along the axis of the slant rod. A strip-shaped hole is formed by recessing the outer side surface of the slant rod inward. The strip-shaped hole connects the channel and the outer side surface of the slant rod, and the strip-shaped hole is arranged parallel to the channel. There are multiple spheres, and the multiple spheres are slidably fitted into the multiple channels in a one-to-one correspondence. There are also multiple push-pull rods, which are arranged vertically. The multiple push-pull rods are slidably fitted into the multiple first through holes in a one-to-one correspondence. The upper ends of the multiple push-pull rods pass through the multiple strip holes in a one-to-one correspondence and are fixedly connected to the multiple spheres in a one-to-one correspondence. The lower ends of the multiple push-pull rods are all located on the lower side of the support plate. The locking drive assembly is mounted on the bracket and located below the support plate. The upper end of the locking drive assembly is fixedly connected to the lower ends of the multiple push-pull rods, and the lower end of the locking drive assembly is fixedly connected to the bracket. The locking drive assembly is a structure that can elastically extend and retract vertically. The locking drive assembly is used to provide an upward elastic force to the multiple push-pull rods. The locking drive unit further includes a first pushing part, which is disposed on the support plate and is used to push the upper end of the locking drive assembly downward. The support plate is also provided with a plurality of second through holes; the first pushing part includes a placement plate and a plurality of pushing rods. The placement plate is horizontally arranged above the support plate, and the plurality of pushing rods are slidably engaged in the plurality of second through holes in a one-to-one correspondence. The lower end of the pushing rod abuts against the upper end of the locking drive assembly, and the upper end of the pushing rod is fixedly connected to the placement plate. The locking drive unit further includes a second pushing part, which is used to push the upper end of the locking drive assembly downward; The bearing plate has a third through hole in the middle; the second pushing part includes a first internal threaded sleeve and a screw. The first internal threaded sleeve is fixed on the upper side of the bearing plate. The inner cavity of the first internal threaded sleeve is directly opposite the third through hole. The screw is screwed into the first internal threaded sleeve. The lower end of the screw passes through the third through hole and is located on the lower side of the bearing plate.

2. The seedling raising device according to claim 1, characterized in that: The locking drive assembly includes a fixed plate, a connecting plate, and a helical spring. The fixed plate is fixedly connected to the bracket. The connecting plate is located above the fixed plate and is fixedly connected to the lower ends of multiple push-pull rods. The helical spring is in a compressed state with its lower end abutting against the fixed plate and its upper end abutting against the connecting plate.

3. The seedling raising device according to claim 1, characterized in that: A second internally threaded sleeve is fixed on the bracket, and the second internally threaded sleeve is arranged in a horizontal direction.

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