A corn seedling transplanting device

By introducing an adjustable placement frame height structure into the transplanting device, the problem of difficulty for operators in picking up and placing seedlings is solved, thereby reducing labor intensity and improving work efficiency, and ensuring the high efficiency and continuity of seedling transplanting.

CN224306376UActive Publication Date: 2026-06-02HUIZHOU INST OF AGRI SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU INST OF AGRI SCI
Filing Date
2025-09-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing transplanter has a fixed height and a high position for the seedling storage frame, which makes it difficult for operators to pick up and put down seedlings, increases labor intensity, and affects work efficiency.

Method used

Design a corn seedling transplanting device. The height of the placement frame can be adjusted by driving the adjusting block and guide frame with a lead screw. Combined with the limiting structure and driving component, the height of the placement frame is ensured to be suitable for the operator to pick up, making it easy to adjust individually and reducing labor intensity.

Benefits of technology

It enables flexible adjustment of the placement frame height, avoiding operators having to frequently tiptoe or bend over, reducing labor intensity, improving work efficiency and comfort, and ensuring the continuity and efficiency of seedling transplantation.

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Abstract

The utility model belongs to transplanting device technical field, and specifically is a corn seedling transplanting device, including main part structure, the fixedly connected with mounting bracket on main part structure, the slidingly connected with a plurality of placing frame on mounting bracket, the detachable connection has tray on placing frame, and placing frame is adjusted through adjusting structure, and adjusting structure includes adjusting block, and the slidingly connected with adjusting block on mounting bracket, and the fixedly connected with guide frame on adjusting block, and the slidingly connected with two slide rods on guide frame, and the fixedly connected with inserting rod on slide rod, and the fixedly connected with two inserting sleeves on placing frame, and two inserting rods are respectively with two inserting sleeves and are inserted, and the rotatably connected with second screw rod on guide frame, and the threaded connection of slide rod and second screw rod, and the opposite threaded direction of second screw rod both ends, and the rotatably connected with first screw rod on mounting bracket, and the threaded connection of adjusting block and first screw rod. Through first screw rod threaded drive adjusting block along mounting rack sliding, the height of placing frame is adjusted, ensures that placing frame height adaptation operator range when taking seedling.
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Description

Technical Field

[0001] This utility model belongs to the technical field of transplanting devices, specifically a corn seedling transplanting device. Background Technology

[0002] As the initial stage of plant growth, the growth status of seedlings directly affects the subsequent development of the plant and the final yield. In agricultural production, to provide more ample growing space and a more suitable soil environment, seedlings often need to be transplanted, that is, transferred from the nursery area to the field for planting. The application of seedling transplanting machines can effectively improve the efficiency and standardization of transplanting operations.

[0003] Currently, to increase the number of seedlings carried in a single operation, transplanters are usually equipped with multiple seedling storage baskets. However, the upper seedling storage baskets are often at a fixed height and in a high position, making it difficult for operators to pick up and put down seedlings, increasing labor intensity and affecting work efficiency.

[0004] Therefore, it is necessary to provide a device that makes it easy for operators to pick up and transplant seedlings, so as to reduce labor intensity and improve the overall efficiency of the operation. Utility Model Content

[0005] Based on this, this solution provides a corn seedling transplanting device with a baffle at the bottom. The guide frame and placement frame fixed on the adjusting block can be moved down by the screw, thereby reducing the height of the placement frame. This makes it easier to adjust the height of the placement frame individually, making it easier for operators to pick up the seedlings in the placement frame and avoiding the need for operators to frequently tiptoe or bend over.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A corn seedling transplanting device includes a main structure, a mounting frame fixedly connected to the main structure, multiple placement frames slidably connected to the mounting frame, trays detachably connected to each placement frame, and the placement frames adjustable by an adjustment structure including an adjustment block. The adjustment block is slidably connected to the mounting frame, a guide frame is fixedly connected to the adjustment block, two sliding rods are slidably connected to the guide frame, and insertion rods are fixedly connected to the sliding rods. Two insertion sleeves are fixedly connected to each placement frame, and the two insertion rods are respectively inserted into the two insertion sleeves. A second lead screw is rotatably connected to the guide frame, and the sliding rods are threadedly connected to the second lead screw. The threads at both ends of the second lead screw have opposite directions. A first lead screw is rotatably connected to the mounting frame, and the adjustment block is threadedly connected to the first lead screw. The placement frames are fixed to the mounting frame by a limiting structure.

[0008] Optionally, in one embodiment of the present invention, a second protective cover is fixedly connected to the mounting bracket, the adjusting block is slidably connected to the second protective cover, a first protective cover is fixedly connected to the guide frame, and the sliding rod is slidably connected to the first protective cover.

[0009] Optionally, in one embodiment of the present invention, a first driving member is installed on the mounting bracket, the first lead screw is driven by the first driving member, and a second driving member is installed on the guide frame, the second lead screw is driven by the second driving member.

[0010] Optionally, in one embodiment of the present invention, the limiting structure includes a connecting rod, the connecting rod is slidably connected to the sleeve, and an mounting plate is fixedly connected to the connecting rod.

[0011] Optionally, in one embodiment of the present invention, the mounting bracket is provided with a plurality of limiting holes, and the plurality of limiting holes are arranged in a linear array on the mounting bracket.

[0012] Optionally, in one embodiment of the present invention, a limiting shaft is fixedly connected to the mounting plate, and the two limiting shafts are respectively engaged with two limiting holes.

[0013] Optionally, in one embodiment of the present invention, the connecting rod has a T-shaped cross-section, and a first spring is fixedly connected between the connecting rod and the insert.

[0014] Optionally, in one embodiment of the present invention, the tray is mounted on the placement frame by an installation structure, the installation structure including an installation sleeve, the installation sleeve being fixedly connected to the placement frame, and an installation block being slidably connected to the installation sleeve, the installation block engaging with a through groove on the tray.

[0015] Optionally, in one embodiment of the present invention, the mounting block is provided with an inclined surface, a fixing block is fixedly connected to the mounting block, an anti-detachment rod is fixedly connected to the mounting sleeve, and the fixing block and the anti-detachment rod are slidably connected.

[0016] Optionally, in one embodiment of the present invention, a rotating shaft is rotatably connected to the mounting block, a rotating plate is fixedly connected to the rotating shaft, and a second spring is fixedly connected between the fixing block and the anti-detachment rod.

[0017] Compared with the prior art, the corn seedling transplanting device provided by this utility model has the following characteristics:

[0018] The main structure is fixedly connected to a mounting frame, on which multiple placement frames are slidably connected. Each placement frame has a detachable tray. The placement frames are adjustable via an adjustment mechanism. An adjustment block is slidably connected to the mounting frame, and a guide frame is fixedly connected to the adjustment block. Two sliding rods are slidably connected to the guide frame, and insert rods are fixedly connected to the sliding rods. Two insert sleeves are fixedly connected to the placement frames, and the two insert rods are respectively inserted into the two insert sleeves. A second lead screw is rotatably connected to the guide frame, and the sliding rods are threadedly connected to the second lead screw. The threads at both ends of the second lead screw have opposite directions. A first lead screw is rotatably connected to the mounting frame, and the adjustment block is threadedly connected to the first lead screw. The placement frames are fixed to the mounting frame by a limiting structure. The first lead screw drives the adjustment block to slide vertically along the mounting frame, thereby causing the guide frame and the connected placement frames fixed on the adjustment block to move downwards synchronously, thus lowering the height of the upper placement frames. This facilitates individual adjustment of the placement frame height, ensuring that the height of all placement frames is suitable for the operator's reach when picking up seedlings, avoiding frequent tiptoeing or bending over, and reducing labor intensity. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure between the placement frame and the mounting bracket in Embodiment 1 of this utility model;

[0022] Figure 3 for Figure 2 The diagram shows an enlarged view of the structure of region A.

[0023] Figure 4 This is a schematic diagram of the connection structure between the guide frame and the adjusting block in Embodiment 1 of this utility model;

[0024] Figure 5 for Figure 4 The diagram shows an enlarged view of the structure of region B.

[0025] Figure 6 This is a schematic diagram of the connection structure between the adjusting block and the mounting frame in Embodiment 1 of this utility model;

[0026] Figure 7 for Figure 6 The diagram shows an enlarged view of the C region structure.

[0027] Figure 8 This is a schematic diagram of the connection structure between the placement frame and the tray in Embodiment 1 of this utility model;

[0028] Figure 9 for Figure 8 The diagram shows an enlarged view of the structure of region D.

[0029] Reference numerals in the attached drawings: 1. Main structure; 2. Mounting frame; 3. Placement frame; 4. Tray; 5. Adjustment structure; 501. Adjustment block; 502. Guide frame; 503. First lead screw; 504. First driving component; 505. Slide rod; 506. Second lead screw; 507. Second driving component; 508. Insert rod; 509. Insert sleeve; 510. First protective cover; 511. Second protective cover; 6. Limiting structure; 6. Connecting rod; 601. Mounting plate; 602. Limiting shaft; 603. Limiting hole; 604. First spring; 605. Mounting structure; 7. Mounting sleeve; 701. Mounting block; 702. Inclined surface; 703. Fixing block; 704. Anti-detachment rod; 705. Second spring; 706. Rotating shaft; 707. Rotating plate; 708. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0031] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar regional components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] Example 1

[0033] Because the existing transplanting devices have trays that are too high, making it inconvenient for workers to access the seedlings, a new transplanting device has been designed to make it easier to access the seedlings. The specific solution is as follows:

[0034] like Figures 1-9As shown, a corn seedling transplanting device includes a main structure 1, a mounting frame 2 fixedly connected to the main structure 1, multiple placement frames 3 slidably connected to the mounting frame 2, trays 4 detachably connected to the placement frames 3, and the placement frames 3 being adjusted by an adjustment structure 5. The adjustment structure 5 includes an adjustment block 501, the adjustment block 501 slidably connected to the mounting frame 2, a guide frame 502 fixedly connected to the adjustment block 501, two sliding rods 505 slidably connected to the guide frame 502, insertion rods 508 fixedly connected to the sliding rods 505, two insertion sleeves 509 fixedly connected to the placement frames 3, and the two insertion rods 508 respectively insert into the two insertion sleeves 509. A second lead screw 506 is rotatably connected to the guide frame 502, and the sliding rods 505 are threadedly connected to the second lead screw 506. The threads at both ends of the second lead screw 506 are in opposite directions. A first lead screw 503 is rotatably connected to the mounting frame 2, and the adjustment block 501 is threadedly connected to the first lead screw 503. The placement frames 3 are fixed to the mounting frame 2 by a limiting structure 6.

[0035] A second protective cover 511 is fixedly connected to the mounting bracket 2. An adjusting block 501 is slidably connected to the second protective cover 511. A first protective cover 510 is fixedly connected to the guide frame 502. A sliding rod 505 is slidably connected to the first protective cover 510. A first driving component 504 is installed on the mounting bracket 2. The first driving component 504 drives the first lead screw 503 to rotate. The adjusting block 501 is threadedly connected to the first lead screw 503 and slidably connected to the mounting bracket 2. The adjusting block 501 will slide vertically along the mounting bracket 2, thereby causing the guide frame 502 fixed on the adjusting block 501 and the connected placement frame 3 to move down synchronously, thereby reducing the height of the upper placement frame 3. This facilitates individual adjustment of the placement frame. The height of frame 3 ensures that all placement frames 3 are within the reach of operators when picking up seedlings, avoiding operators having to frequently tiptoe or bend over, thus reducing labor intensity. At the same time, the first protective cover 510 on the guide frame 502 can protect the sliding structure of the slide rod 505, and the second protective cover 511 on the mounting frame 2 can protect the sliding structure of the adjusting block 501, preventing field soil and weeds from entering and affecting the height adjustment accuracy. The first lead screw 503 is driven by the first driving component 504, and the guide frame 502 is equipped with a second driving component 507. The second lead screw 506 is driven by the second driving component 507. In this embodiment, the first driving component and the second driving component 507 are motors.

[0036] The limiting structure 6 includes a connecting rod 601, which is slidably connected to the insert 509. A mounting plate 602 is fixedly connected to the connecting rod 601. The mounting frame 2 is provided with multiple limiting holes 604, which are arranged in a linear array on the mounting frame 2. A limiting shaft 603 is fixedly connected to the mounting plate 602. The two limiting shafts 603 are respectively engaged with the two limiting holes 604. When the insert 508 is pulled out, the first spring 605 resets and pushes the limiting shaft 603 to re-engage in the limiting hole 604, thus locking the height of the placement frame 3. The T-shaped structure of the connecting rod 601 prevents it from detaching from the insert 509, ensuring a stable connection. The cross-section of the connecting rod 601 is T-shaped. A first spring 605 is fixedly connected between the connecting rod 601 and the insert 509.

[0037] The tray 4 is mounted on the placement frame 3 via the mounting structure 7. The mounting structure 7 includes a mounting sleeve 701, which is fixedly connected to the placement frame 3. A mounting block 702 is slidably connected to the mounting sleeve 701. The mounting block 702 engages with a through groove on the tray 4. The mounting block 702 has an inclined surface 703, and a fixing block 704 is fixedly connected to the mounting block 702. An anti-detachment rod 705 is fixedly connected to the mounting sleeve 701, and the fixing block 704 and the anti-detachment rod 705 are slidably connected. When the operator aligns the tray 4 containing the seedlings with the placement frame 3 and presses it down, the edge of the tray 4 presses against the inclined surface 703 of the mounting block 702, causing the mounting block 702 to slide outward along the mounting sleeve 701. When the through groove on the tray 4 is aligned with the mounting block 702, the fixing block 704 engages with the through groove on the tray 4. The second spring 706 between the 4 and the anti-detachment rod 705 releases its elastic force, pushing the fixing block 704 to drive the mounting block 702 to reset and snap into the through groove, quickly completing the installation of the tray 4. During this process, the anti-detachment rod 705 can prevent the fixing block 704 from detaching from the mounting sleeve 701, avoiding installation failure. When disassembling later, the mounting block 702 can be easily disengaged from the through groove by pulling the rotating plate 708, improving the efficiency of disassembly and assembly. When disassembling, the rotating plate 708 can be rotated to overlap with the anti-detachment rod 705, so that the rotating plate 708 does not need to be pulled continuously during the disassembly process. The mounting block 702 is rotatably connected to the rotating shaft 707, and the rotating plate 708 is fixedly connected to the rotating shaft 707. The second spring 706 is fixedly connected between the fixing block 704 and the anti-detachment rod 705.

[0038] Working principle:

[0039] First, place the tray 4 containing the seedlings into the placement frame 3 to quickly complete the installation of the tray 4. The anti-detachment rod 705 can prevent the fixing block 704 from detaching from the installation sleeve 701, avoiding improper installation. When disassembling, simply pull the rotating plate 708 to move the installation block 702 out of the through groove, improving the efficiency of disassembly and assembly. When disassembling, the rotating plate 708 can be rotated to overlap with the anti-detachment rod 705, so that the rotating plate 708 does not need to be continuously pulled during the disassembly process.

[0040] To lower the height of the upper placement frame 3, first activate the second drive unit 507 on the guide frame 502. The second drive unit 507 drives the second lead screw 506 to rotate, driving the two slide rods 505 to slide in the opposite direction along the guide frame 502, causing the insertion rod 508 to insert into or disengage from the sleeve 509 on the placement frame 3. When the insertion rod 508 is inserted into the sleeve 509, it continues to slide and abuts against the connecting rod 601. The insertion rod 508 pushes the connecting rod 601 to slide along the sleeve 509 and compresses the first spring 605, so that the limiting shaft 603 is no longer engaged with the limiting hole 604, thus avoiding obstruction when adjusting the height of the placement frame 3. At this time, activate the first drive unit 504 on the mounting bracket 2 to drive the first lead screw. When 503 rotates, the adjusting block 501 slides vertically along the mounting frame 2, causing the fixed guide frame 502 and the connected placement frame to move downward, thereby lowering the height of the upper placement frame 3. This allows for individual adjustment of the height of the placement frame 3, making it easy for operators to pick up seedlings from all placement frames 3 without requiring them to tiptoe or bend over. At the same time, the first protective cover 510 and the second protective cover 511 prevent soil and weeds from entering and affecting the height adjustment accuracy. When the insertion rod 508 is pulled out, the first spring 605 resets and pushes the limiting shaft 603 to re-engage in the limiting hole 604, thus fixing the height position of the placement frame 3. The T-shaped structure of the connecting rod 601 prevents it from detaching from the insertion sleeve 509, ensuring stability.

[0041] The main structure 1 is activated to carry out seedling transplanting operations. When the main structure 1 is working, the operator can sit on the seat and move it by the traction device. During the movement, the upper placement area makes it convenient for the operator to pick up the seedlings. The transmission mechanism on the equipment drives the lower transplanting component to move. The transplanting component will dig holes in the field at certain intervals and depths. After the operator puts the seedling into the corresponding position of the transplanting component, the transplanting component will accurately implant the seedling into the prepared hole and simultaneously complete the covering and other operations, thereby achieving efficient seedling transplanting.

[0042] The transplanting device in this solution uses a motor-driven first lead screw 503 to control the height of multiple placement frames 3, ensuring that all trays 4 are within a comfortable reach. This avoids the problem of frequently bending over or tiptoeing to pick up seedlings, reduces labor intensity, and improves comfort during long-term operation.

[0043] The device is equipped with a first protective cover 510 and a second protective cover 511, which respectively protect sliding components such as the slide rod 505 and the adjusting block 501. This prevents impurities such as field soil, weeds, and dust from entering the precision transmission parts, avoiding jamming or malfunction caused by blockage or wear, and ensuring long-term reliability.

[0044] The mounting structure 7, through the ingenious cooperation of the inclined plane 703, the second spring 706, and the mounting block 702, enables the rapid installation of the pallet 4. The operation is simple, requires no tools, and improves the loading and unloading efficiency of the pallet.

[0045] The limiting structure 6 can automatically push the limiting shaft 603 into the limiting hole 604 by the elastic force of the first spring 605, so as to achieve automatic locking after the height of the placement frame is adjusted.

[0046] Multiple placement frames 3 can be pre-loaded with multiple trays, allowing operators to continuously pick up seedlings while the equipment is moving. This works in conjunction with the transplanting mechanism's actions of opening holes, planting seedlings, and covering soil, ensuring continuous operation and improving work efficiency.

[0047] Example 2

[0048] In this embodiment, the structure of the transplanting device is basically the same as that of Embodiment 1. The difference is that a foot-operated unlocking lever or pedal is added near the insert 509. Before adjusting the height, the operator can directly pull the connecting rod 601 through this lever to compress the first spring 605, so that the limiting shaft 603 exits from the limiting hole 604, reducing the difficulty of operation and the accuracy requirements for alignment. Even if the motor fails, the height can be manually unlocked for adjustment.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A corn seedling transplanting device, comprising a main structure, characterized in that: A mounting frame is fixedly connected to the main structure. Multiple placement frames are slidably connected to the mounting frame. A tray is detachably connected to each placement frame. The placement frames are adjustable via an adjustment structure, which includes an adjustment block. An adjustment block is slidably connected to the mounting frame. A guide frame is fixedly connected to the adjustment block. Two sliding rods are slidably connected to the guide frame. Insert rods are fixedly connected to the sliding rods. Two insert sleeves are fixedly connected to the placement frames. The two insert rods are respectively inserted into the two insert sleeves. A second lead screw is rotatably connected to the guide frame. The sliding rods are threadedly connected to the second lead screw. The threads at both ends of the second lead screw have opposite directions. A first lead screw is rotatably connected to the mounting frame. The adjustment block is threadedly connected to the first lead screw. The placement frames are fixed to the mounting frame via a limiting structure.

2. The corn seedling transplanting device according to claim 1, characterized in that: A second protective cover is fixedly connected to the mounting bracket, the adjusting block is slidably connected to the second protective cover, a first protective cover is fixedly connected to the guide frame, and the sliding rod is slidably connected to the first protective cover.

3. The corn seedling transplanting device according to claim 2, characterized in that: A first driving component is mounted on the mounting bracket, and the first lead screw is driven by the first driving component. A second driving component is mounted on the guide frame, and the second lead screw is driven by the second driving component.

4. The corn seedling transplanting device according to claim 3, characterized in that: The limiting structure includes a connecting rod, the connecting rod is slidably connected to the insert, and an mounting plate is fixedly connected to the connecting rod.

5. A corn seedling transplanting device according to claim 4, characterized in that: The mounting bracket is provided with multiple limiting holes, which are arranged in a linear array on the mounting bracket.

6. A corn seedling transplanting device according to claim 5, characterized in that: The mounting plate is fixedly connected with limiting shafts, and the two limiting shafts are respectively engaged with two limiting holes.

7. A corn seedling transplanting device according to claim 6, characterized in that: The connecting rod has a T-shaped cross-section, and a first spring is fixedly connected between the connecting rod and the sleeve.

8. A corn seedling transplanting device according to claim 1, characterized in that: The tray is mounted on the placement frame via an installation structure, which includes an installation sleeve. The installation sleeve is fixedly connected to the placement frame, and an installation block is slidably connected to the installation sleeve. The installation block engages with a through groove on the tray.

9. A corn seedling transplanting device according to claim 8, characterized in that: The mounting block has an inclined surface, a fixing block is fixedly connected to the mounting block, an anti-detachment rod is fixedly connected to the mounting sleeve, and the fixing block and the anti-detachment rod are slidably connected.

10. A corn seedling transplanting device according to claim 9, characterized in that: A rotating shaft is rotatably connected to the mounting block, a rotating plate is fixedly connected to the rotating shaft, and a second spring is fixedly connected between the fixing block and the anti-detachment rod.