A corn seedling cultivation frame
By using four support legs connected to the protrusions and slots of the seedling tray in the corn seedling cultivation rack, and using telescopic rods with magnetic bases to attract the plugs, the problems of fixed size limitations and unstable connections in the existing technology are solved, achieving stable support and enhanced structural strength to adapt to seedling trays of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHUANDAN SEED IND CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-16
AI Technical Summary
Existing modular corn seedling cultivation racks can only support seedling trays of fixed size, and the connections are not stable enough, limiting their use.
It adopts four support legs and is connected to the seedling tray through protrusion slots. The rod body is a telescopic rod, and the plug is made of ferromagnetic material. The plug is attracted to the tenon and groove by the magnetic base. The rod body provides stable support and can adapt to seedling trays of different sizes.
It achieves a stable connection between the seedling tray and the support legs, is suitable for seedling trays of different sizes, and enhances the structural strength and stability of the cultivation rack.
Smart Images

Figure CN224356751U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of corn cultivation technology, and specifically relates to a corn seedling cultivation rack. Background Technology
[0002] As one of the three major grain crops, corn is experiencing a continuous increase in both cultivation scale and demand. To better cultivate corn seedlings, the current main practice is to use cultivation racks in greenhouses. In actual cultivation, seeds are sown in potting soil or culture medium on the cultivation racks, where nutrients provide nourishment for seed germination and seedling growth. While existing modular seedling cultivation racks are easy to disassemble and their support legs provide relatively stable support for the seedling trays after installation, we have found the following technical problems during use:
[0003] 1. It can only support one fixed size seedling tray, limiting its use;
[0004] 2. The rod hinged on one support leg is connected to the tenon on another support leg only by inserting it into the groove, which is not a stable connection.
[0005] To address the two technical issues mentioned above, we upgraded and improved the modular corn seedling cultivation rack. Utility Model Content
[0006] This utility model provides a corn seedling cultivation rack to solve the aforementioned technical problems mentioned in the background art.
[0007] This utility model is achieved through the following technical solution: a corn seedling cultivation rack, comprising:
[0008] The seedling tray has four protrusions on its outer wall and is filled with soil for cultivating corn seedlings.
[0009] The support leg has a storage groove and a slot on the outer wall on the same side. The slot is located above the storage groove and penetrates the top wall of the support leg. The outer wall of the support leg also has a tenon and a mounting groove. The tenon and the mounting groove are opposite each other, and the depth direction of the tenon is perpendicular to the depth direction of the storage groove. A rod is hinged in the storage groove. A plug that matches the tenon is fixed to the free end of the rod. The plug is a structural component made of ferromagnetic material, and the rod is a telescopic rod. A magnetic base for attracting the plug is installed in the mounting groove.
[0010] The number of support legs is four, namely a first support leg, a second support leg, a third support leg, and a fourth support leg. The plug on the first support leg is inserted into the mortise on the second support leg, the plug on the second support leg is inserted into the mortise on the third support leg, the plug on the fourth support leg is inserted into the mortise on the fourth support leg, and the plug on the fourth support leg is inserted into the mortise on the first support leg.
[0011] The four protrusions are respectively inserted into the four slots.
[0012] Furthermore, in order to better realize this utility model, the telescopic rod includes an outer tube and an inner rod. One end of the outer tube is hinged in the storage groove, the inner rod is slidably inserted into the outer tube, the plug is fixed to the inner rod, and the outer tube is also connected to an unlocking mechanism for locking the inner rod.
[0013] Furthermore, in order to better realize this utility model, the locking and unlocking mechanism is a bolt, the outer tube has a threaded hole in its wall, the bolt is screwed into the threaded hole, and when locked, the bolt is pressed against the outer wall of the inner rod.
[0014] Furthermore, in order to better realize this utility model, a thickened part is provided at the opening of the outer tube, and the screw hole is opened on the thickened part.
[0015] Furthermore, in order to better realize this utility model, a cover plate is bolted to the opening of the mounting groove, the magnetic meter base is pressed into the mounting groove by the cover plate, an operation hole is provided on the cover plate, the magnetic meter base has a handle, and the handle is rotatably inserted into the operation hole.
[0016] Furthermore, in order to better realize this utility model, it also includes:
[0017] The seedling tray has a first slot in the middle, the partition is inserted into the first slot, and the soil in the seedling tray is divided into an upper soil layer and a lower soil layer by the partition, and the corn seeds are sown in the upper soil layer.
[0018] Furthermore, in order to better realize this utility model, a first through hole is provided on the partition plate, and the first through hole is located outside the seedling tray.
[0019] Furthermore, to better realize this utility model, the bottom of the seedling tray is formed with an opening, and it also includes:
[0020] The bottom support plate has a second slot at the bottom of the seedling tray, the bottom support plate is inserted into the second slot, and the bottom support plate seals the opening.
[0021] Furthermore, in order to better realize this utility model, a second through hole is provided on the bottom support plate, and the second through hole is located outside the bottom support plate.
[0022] Compared with the prior art, this utility model has the following advantages:
[0023] In the combined corn seedling cultivation rack provided by this utility model, four protrusions on the seedling tray are respectively inserted into the slots on the four support legs, thereby assembling the seedling tray with the four support legs. Each pair of adjacent support legs is connected by a rod, thereby strengthening the structural strength of the entire cultivation rack. The rod is set as a telescopic rod, so that the user only needs to adjust the length of the telescopic rod to adjust the distance between two adjacent support legs. Specifically, when the seedling tray is large, the telescopic rod is extended; when the seedling tray is small, the telescopic rod is shortened, so that the cultivation rack can be used for seedling trays of different sizes.
[0024] A plug is fixed to the free end of the aforementioned rod. One end of the rod is hinged to a storage groove on a support leg. When the rod is rotated out of the storage groove to a horizontal position, the plug can be inserted into a tenon on another support leg, thereby connecting the two support legs together. A magnetic base is installed on the support leg. The plug is made of ferromagnetic material. After the plug is inserted into the tenon, the magnetic base holds the plug in the tenon. At this time, one end of the rod is hinged to one of the support legs, while the other end of the rod is inserted into the tenon on the other support leg by the plug and held by the magnetic base. With the help of the magnetic base, the probability of the plug falling out of the tenon is reduced, thus making the rod more securely connected between the two support legs. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the structure of the combined corn seedling cultivation rack provided in this embodiment of the utility model;
[0027] Figure 2 yes Figure 1 Exploded view of the structure shown;
[0028] Figure 3 This is a schematic diagram of the structure of the seedling tray provided in this embodiment of the utility model;
[0029] Figure 4 yes Figure 3 A cross-sectional view of the structure shown;
[0030] Figure 5 This is a schematic diagram of the support leg provided in an embodiment of the present utility model;
[0031] Figure 6 yes Figure 5 Exploded view of the structure shown;
[0032] Figure 7 yes Figure 6 Another perspective view of the structure shown;
[0033] Figure 8 This is a schematic diagram of the connection structure of the two support legs in an embodiment of this utility model;
[0034] Figure 9 yes Figure 8 A cross-sectional view of the structure shown;
[0035] Figure 10 yes Figure 9 A magnified view of region A in the image.
[0036] In the picture:
[0037] 1-Seedling tray; 11-Protrusion;
[0038] 2-Support leg; 21-Tongue and tenon;
[0039] 3-Stick body; 31-Plug; 32-Outer tube; 33-Inner rod; 34-Bolt; 35-Thickened part;
[0040] 4-Magnetic watch base; 41-Handle;
[0041] 5-Cover plate;
[0042] 6-Partition plate; 61-First through hole;
[0043] 7-Bottom plate; 71-Second through hole. Detailed Implementation
[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0045] Example 1:
[0046] The combined corn seedling cultivation rack provided in this embodiment includes a seedling tray 1 and support legs 2, wherein:
[0047] Four protrusions 11 are integrally formed or heat-fused onto the outer wall of the seedling tray 1. These four protrusions 11 are evenly distributed on the outer wall of the seedling tray 1. Optionally, the upper and lower ends of the protrusions 11 are flush with the upper and lower ends of the seedling tray 1. Alternatively, the protrusions 11 can be blocks located at the bottom of the seedling tray 1 and flush with its bottom. The seedling tray 1 contains soil for cultivating corn seedlings, and nutrients for corn seed germination and growth are added to the soil. When cultivating corn seedlings, corn seeds are sown in the soil. The corn seeds absorb nutrients and germinate. After germination, the corn roots absorb nutrients to promote seedling growth. When the corn seedlings have grown to a certain size, they are removed from the seedling tray 1 along with the soil. Then, new soil is added to the seedling tray 1, nutrients are added, and corn seeds are sown.
[0048] The aforementioned support leg 2 is a rectangular column structure. Optionally, the support leg 2 is a structural component made of rigid plastic, wood, or stainless steel. On the same side of the outer wall of the support leg 2, there is a storage groove and a retaining groove facing each other vertically. The retaining groove is located above the storage groove and penetrates the top wall of the support leg 2. Both the retaining groove and the retaining groove are straight grooves parallel to the length of the support leg 2, and the retaining groove is adapted to the aforementioned protrusion 11. A rod 3 is hinged in the storage groove. The rod 3 can be stored in the storage groove, or it can be rotated out of the storage groove. A plug 31 is glued or bolted to the free end of the rod 3. The plug 31 is a square block structure made of ferromagnetic material; specifically, the plug 31 is an iron block.
[0049] A mortise 21 and a mounting groove are also provided on the outer wall of the aforementioned support leg 2. The mortise 21 is adapted to the aforementioned plug 31. The mounting groove is positioned opposite the aforementioned mortise 21 and is connected to the aforementioned mortise 21. Moreover, the mounting groove is larger than the aforementioned mortise 21. There are four support legs 2, namely the first support leg 2, the second support leg 2, the third support leg 2, and the fourth support leg 2. The plug 31 on the first support leg 2 is inserted into the mortise 21 on the second support leg 2. The plug 31 on the second support leg 2 is inserted into the mortise 21 on the third support leg 2. The plug 31 on the fourth support leg 2 is inserted into the mortise 21 on the fourth support leg 2. The plug 31 on the fourth support leg 2 is inserted into the mortise 21 on the first support leg 2. In use, the seedling tray 1 is connected to the support leg 2 from top to bottom. Specifically, the four protrusions 11 are respectively inserted into the slots on the four support legs 2. The seedling tray 1 is supported by the abutting action of the slot wall against the protrusions 11.
[0050] The aforementioned rod 3 is a telescopic rod. In this way, the user only needs to adjust the length of the telescopic rod to adjust the distance between two adjacent support legs 2. Specifically, when the seedling tray 1 is large, the telescopic rod is extended; when the seedling tray 1 is small, the telescopic rod is shortened, so that the cultivation rack can be adapted to seedling trays 1 of different sizes.
[0051] A magnetic base 4 is installed in the aforementioned mounting slot. After the plug 31 is inserted into the tenon 21, the magnetic base 4 holds the plug 31 in the tenon 21. At this time, one end of the rod 3 is hinged to one of the support legs 2, while the other end of the rod 3 is inserted into the tenon 21 of the other support leg 2 by means of the plug 31 and held by the magnetic base 4. With the help of the magnetic base 4, the probability of the plug 31 falling out of the tenon 21 without cause is reduced, thereby making the rod 3 more stably connected between the two support legs 2.
[0052] An optional implementation of this embodiment is as follows: The telescopic rod includes an outer tube 32 and an inner rod 33. The outer tube 32 is a steel pipe or a rigid plastic pipe, and the inner rod 33 is an aluminum alloy rod body 3 or a stainless steel rod body 3. One end of the outer tube 32 is hinged to the storage groove via a hinge shaft. The inner rod 33 is slidably inserted into the outer tube 32. A plug 31 is fixed to the end of the inner rod 33 away from the outer tube 32. An unlocking mechanism is also connected to the outer tube 32. When the unlocking mechanism is locked, the inner rod 33 is fixed to the outer tube 32, and the telescopic rod cannot extend or retract. When the unlocking mechanism is unlocked, the inner rod 33 is released, and the telescopic rod can extend or retract. Specifically, the unlocking mechanism is a bolt 34. A screw hole is provided on the wall of the outer tube 32, and the bolt 34 is screwed into the screw hole. When locked, the bolt 34 is pressed against the outer wall of the inner rod 33. Optionally, a thickened portion 35 is provided at the opening of the outer tube 32, and the screw hole is opened on the thickened portion 35, so that the bolt 34 can be screwed on the thickened portion 35 more times.
[0053] An optional implementation of this embodiment is as follows: A cover plate 5 is bolted to the opening of the mounting groove, and the magnetic meter holder 4 is pressed into the mounting groove by the cover plate 5. When assembling or disassembling the magnetic meter holder 4, the cover plate 5 can be removed. More preferably, a groove is formed on the side wall of the mounting groove, and the lower part of the magnetic meter holder 4 is placed in the groove for positioning. An operating hole is also formed on the cover plate 5, which communicates with the mounting groove. The magnetic meter holder 4 installed in the mounting groove has a handle 41, which is used to control whether the magnetic meter holder 4 generates magnetic force. The handle 41 is rotatably inserted into the operating hole. The user only needs to put his hand into the operating hole and turn the handle 41 to control whether the magnetic meter holder 4 generates magnetic force.
[0054] Example 2:
[0055] The combined corn seedling cultivation rack provided in this embodiment is basically the same as that in Embodiment 1, except that:
[0056] A first slot is provided in the middle of the seedling tray 1, and a partition 6 is inserted into the first slot. The partition 6 divides the soil in the seedling tray 1 into an upper soil layer and a lower soil layer. Different or the same nutrients are applied to the upper soil layer and the lower soil layer respectively, and corn seeds are sown in the upper soil layer.
[0057] Because corn roots are columnar, they gradually grow into the lower soil layers. Based on experience, the time it takes for the corn roots to reach the partition 6 is determined first. A day or a few hours before this time, the partition 6 is removed from the first slot. This ensures that the nutrients needed for corn seed germination and early seedling growth are supplied through the upper soil layer. The partition 6 effectively prevents nutrients from the upper soil layer from accumulating in the lower soil layer, thus separating the nutrients and ensuring that the upper soil layer contains sufficient nutrients for corn seed germination and early growth. When the corn seedlings reach a certain size, the partition 6 is removed, allowing the roots to penetrate the lower soil layer and absorb nutrients. By using the partition 6 and periodically removing it, the germination rate and survival rate of corn seeds can be improved. Furthermore, nutrients suitable for seed germination can be applied to the upper soil layer, while nutrients suitable for root absorption and seedling growth can be applied to the lower soil layer. In this way, by periodically removing the partition 6, different nutrients can be absorbed by corn seedlings at different stages, thus providing nutrients to corn seedlings in stages according to their needs, which is more conducive to the growth of corn seedlings.
[0058] More preferably, a first through hole 61 is provided on the partition 6. The first through hole 61 is located outside the seedling tray 1. There are several first through holes 61. When the user pulls away the partition 6, he can tie the pull rope to the first through hole 61 or hook his finger on the first through hole 61. That is, the first through hole 61 is the force point of the partition 6.
[0059] Of course, it is also possible not to open the first slot on the side wall of the seedling tray 1, that is, not to install the partition 6 inside the seedling tray 1.
[0060] An optional implementation of this embodiment is as follows: An opening is formed through the bottom of the seedling tray 1. A second slot is provided at the bottom of the seedling tray 1, and a bottom support plate 7 is inserted into the second slot. The bottom support plate 7 seals the opening, allowing the soil to rest on the bottom support plate 7. When it is necessary to remove the corn seedlings and soil, simply pull out the bottom support plate 7, then lift the cultivation frame and suspend it in the air. Then, press the soil down from top to bottom by hand to allow the soil to fall from the seedling tray 1, making it easy to remove. After removing the soil, the corn seedlings planted in the soil also emerge from the seedling tray 1. The user only needs to cut the soil into several small pieces according to the size of the corn seedlings.
[0061] More preferably, a second through hole 71 is provided on the bottom plate 7. The second through hole 71 is located outside the seedling tray 1. There are several second through holes 71. When the user pulls off the bottom plate 7, he can tie the pull rope to the second through hole 71 or hook his finger on the second through hole 71. That is, the second through hole 71 is the force point of the bottom plate 7.
[0062] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A corn seedling cultivation rack, characterized in that, include: The seedling tray has four protrusions on its outer wall and is filled with soil for cultivating corn seedlings. The support leg has a storage groove and a slot on the outer wall on the same side. The slot is located above the storage groove and penetrates the top wall of the support leg. The outer wall of the support leg also has a tenon and a mounting groove. The tenon and the mounting groove are opposite each other, and the depth direction of the tenon is perpendicular to the depth direction of the storage groove. A rod is hinged in the storage groove. A plug that matches the tenon is fixed to the free end of the rod. The plug is a structural component made of ferromagnetic material, and the rod is a telescopic rod. A magnetic base for attracting the plug is installed in the mounting groove. The number of support legs is four, namely a first support leg, a second support leg, a third support leg, and a fourth support leg. The plug on the first support leg is inserted into the mortise on the second support leg, the plug on the second support leg is inserted into the mortise on the third support leg, the plug on the fourth support leg is inserted into the mortise on the fourth support leg, and the plug on the fourth support leg is inserted into the mortise on the first support leg. The four protrusions are respectively inserted into the four slots.
2. The corn seedling cultivation rack according to claim 1, characterized in that: The telescopic rod includes an outer tube and an inner rod. One end of the outer tube is hinged in the storage groove. The inner rod is slidably inserted into the outer tube. The plug is fixed to the inner rod. The outer tube is also connected to an unlocking mechanism for locking the inner rod.
3. The corn seedling cultivation rack according to claim 2, characterized in that: The locking and unlocking mechanism is a bolt. The outer tube has a threaded hole in its wall, and the bolt is screwed into the threaded hole. When locked, the bolt presses against the outer wall of the inner rod.
4. A corn seedling cultivation rack according to claim 3, characterized in that: The outer tube has a thickened section at its opening, and the screw hole is formed on the thickened section.
5. A corn seedling cultivation rack according to any one of claims 1-4, characterized in that: A cover plate is bolted to the opening of the mounting slot, and the magnetic meter base is pressed into the mounting slot by the cover plate. An operating hole is provided on the cover plate, and the magnetic meter base has a handle that is rotatably inserted into the operating hole.
6. A corn seedling cultivation rack according to any one of claims 1-4, characterized in that, Also includes: The seedling tray has a first slot in the middle, the partition is inserted into the first slot, and the soil in the seedling tray is divided into an upper soil layer and a lower soil layer by the partition, and the corn seeds are sown in the upper soil layer.
7. A corn seedling cultivation rack according to claim 6, characterized in that: The partition plate has a first through hole, which is located outside the seedling tray.
8. A corn seedling cultivation rack according to any one of claims 1-4, characterized in that: The bottom of the seedling tray has an opening, and it also includes: The bottom support plate has a second slot at the bottom of the seedling tray, the bottom support plate is inserted into the second slot, and the bottom support plate seals the opening.
9. A corn seedling cultivation rack according to claim 8, characterized in that: The base plate has a second through hole, which is located outside the base plate.