Seed seedling-raising tray seeding device capable of being freely expanded

By designing a freely expandable seedling tray sowing device, the problem of poor adaptability of existing devices has been solved, achieving flexible adaptability and stable installation of seedling trays of different specifications, reducing costs and meeting diverse planting needs.

CN224054847UActive Publication Date: 2026-03-31ZHEJIANG NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing seeding devices are usually designed for specific seeds or seedling trays, making it difficult to adapt to different sizes of seeds or seedling trays. This results in limited application range, insufficient scalability, and an inability to flexibly adjust the number of seeding rows or spacing according to actual needs, making it difficult to meet diverse planting requirements.

Method used

A freely expandable seedling tray sowing device was designed. By allowing the lower seedling tray to be detachably connected to the base plate and the upper seedling tray to the side plate, the device utilizes a locking block and slot structure to achieve flexible installation of different numbers of seedling trays. Furthermore, the combination of locking blocks and slots improves installation stability and adapts to various seedling tray specifications.

Benefits of technology

It achieves flexible adaptability to seedling trays of different sizes, reduces time and labor costs, improves the expandability and installation stability of the device, and meets diverse planting needs.

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Abstract

The utility model discloses a freely expandable seed seedling-raising tray seeding device, which relates to the technical field of seeding and comprises a plurality of bottom plates, universal wheels are fixedly arranged at the bottom of each bottom plate, a lower seedling-raising tray is arranged on one side of each bottom plate, and an upper seedling-raising tray is arranged on the other side of each bottom plate. And an upper seedling raising plate is arranged above the lower seedling raising plate. According to the seed seedling-raising tray seeding device capable of being freely expanded, the lower seedling-raising trays and the bottom plate are mounted together, and the upper seedling-raising trays and the side plates are mounted together, so that different numbers of upper seedling-raising trays and different numbers of lower seedling-raising trays can be mounted together, and clamping blocks and baffles below clamping grooves can be in contact together; the device is simple in structure and convenient to use, prevents downward movement, can be freely expanded together, and can be conveniently adapted to various seedling raising trays as small as 16 to no upper limit, so that the time cost, the labor cost and the cost for purchasing new equipment can be greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the field of sowing technology, specifically to a freely expandable seedling tray sowing device. Background Technology

[0002] In agricultural production, seed cultivation is a crucial step in crop planting, directly impacting crop growth quality and yield. Traditional seed cultivation methods primarily rely on manual sowing, which suffers from low efficiency, uneven sowing, and high labor intensity. However, with the development of agricultural mechanization...

[0003] A search of patent application number CN201310527085.4 reveals that this invention relates to the field of agricultural machinery, and particularly to a seed tray seedling sowing device for large seeds. Under the control of a controller, the seed metering device and conveyor belt work together. When the seed trays on the conveyor belt accurately reach below the seed metering port, the seed metering device discharges the seeds, ensuring they fall accurately into the seed trays. This seed metering method is highly effective for larger and heavier seeds. Furthermore, under the control of the controller, the seed trays on the conveyor belt are accurately positioned, keeping errors within a very small range. While automated sowing equipment is increasingly being applied to the seedling stage, existing sowing devices still have some shortcomings, including poor adaptability: existing sowing devices are typically designed for specific seeds or seedling trays, making it difficult to adapt to different sizes of seeds or seedling trays, thus limiting their application and expansion capabilities; traditional sowing devices have fixed structures, making it impossible to flexibly adjust the number of sowing rows or spacing according to actual needs, thus failing to meet diverse planting requirements.

[0004] A search of patent application number CN202220907810.5 reveals that this utility model belongs to the field of tray seedling technology, specifically relating to a small-seed tray seedling sowing device. This utility model addresses the problems of cumbersome sowing operations and inaccurate sowing quantity control in existing tray seedling sowing devices. It incorporates multiple components such as a sowing frame, a seed storage plate, and a sowing plate. Its operation is simple, and it allows for relatively precise control of the sowing quantity, thus improving the efficiency of tray seedling cultivation for vegetables and other crops. While automated sowing equipment is increasingly being applied to the seedling stage, existing sowing devices still have some shortcomings, including poor adaptability: existing sowing devices are typically designed for specific seeds or seedling trays, making it difficult to adapt to different sizes of seeds or seedling trays, thus limiting their application range and limiting their scalability; traditional sowing devices have fixed structures, making it impossible to flexibly adjust the number of sowing rows or spacing according to actual needs, thus failing to meet diverse planting requirements. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a freely expandable seedling tray sowing device. The lower seedling tray is installed with the base plate, and the upper seedling tray is installed with the side plate, allowing for the installation of different numbers of upper and lower seedling trays. It can be freely expanded or reduced according to the specifications of the seedling trays and sowing needs, and can be flexibly adjusted. The locking blocks contact the baffle below the slots to prevent downward movement. This allows for free expansion and adaptation to various seedling trays, from as small as 16 to an unlimited size, satisfying the issues of expandability and adaptability. Furthermore, it is simple and quick to operate, significantly reducing time, labor, and the cost of purchasing new equipment. This solves the problem that existing sowing devices are typically designed for specific seeds or seedling trays, making it difficult to adapt to different sizes of seeds or seedling trays, resulting in limited application and insufficient expandability. Traditional sowing devices have a fixed structure and cannot flexibly adjust the number of sowing rows or spacing according to actual needs, making it difficult to meet diverse planting requirements.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a freely expandable seedling tray sowing device, including a base plate, wherein there are multiple base plates, and each base plate is fixedly provided with a caster wheel at its bottom. A lower seedling tray is provided on one side of the base plate, and an upper seedling tray is provided above the lower seedling tray.

[0007] Each of the base plates is provided with a side plate on its upper side, and a conveying pipe is provided at the bottom of the side plate. There are multiple conveying pipes. The surfaces of the side plates, base plates, lower seedling trays and upper seedling trays are provided with holes. The holes are connected to the connection points of the conveying pipes. A locking block is fixedly provided on one side of each of the side plates, base plates, lower seedling trays and upper seedling trays.

[0008] Preferably, the upper seedling tray and the lower seedling tray have the same shape, and the upper seedling tray and the side plate are double-layered.

[0009] Preferably, the bottom surface of the side plate is provided with a cross groove, and a mounting screw is provided inside the cross groove, with the mounting screw extending to the outside of the cross groove.

[0010] Preferably, the surfaces of the side plate, bottom plate, lower seedling tray and upper seedling tray are all provided with slots, and the slots are adapted to the slot blocks.

[0011] Preferably, both sides of the card slot are provided with holes and slots, and the holes and slots are connected to the card slot. A telescopic rod is provided inside the card slot.

[0012] Preferably, a connecting spring is provided around the outer side of the telescopic rod, and a ball is fixedly provided at one end of the telescopic rod near the slot.

[0013] Preferably, both sides of the card block are provided with grooves, and one side of the sphere extends into the interior of the groove.

[0014] Preferably, a baffle is provided at the bottom of the card slot, and the baffle is in contact with the card block.

[0015] Preferably, the upper seedling tray and the double-layer side plates are in contact with each other, and the cross groove is installed on the surface of the lower side plate.

[0016] Beneficial effects

[0017] This invention provides a freely expandable seedling tray sowing device. Compared with the prior art, it has the following advantages:

[0018] 1. This freely expandable seedling tray sowing device allows the lower seedling tray to be installed with the base plate and the upper seedling tray to be installed with the side plate. This allows for the installation of different numbers of upper and lower seedling trays. It can be freely expanded or reduced according to the specifications of the seedling trays and sowing needs, and can be flexibly adjusted. The locking blocks contact the baffles below the slots to prevent downward movement. It can be freely expanded and adapted to various seedling trays, from 16 to unlimited sizes, satisfying the issues of expandability and adaptability. Moreover, it is simple and quick to operate, which can significantly reduce time and labor costs and the cost of purchasing new equipment.

[0019] 2. This freely expandable seedling tray sowing device, by merging a round block with a corresponding slot, allows the round block to first contact the sphere, shortening the length of the telescopic rod and causing the connecting spring to deform. Since the slot and the block are compatible, the merging of the two aligns the groove on the surface of the block with the sphere. After alignment, the connecting spring allows the sphere and the telescopic rod to automatically reset, causing part of the sphere to merge with the groove, thus improving the stability of the installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a bottom view of the overall structure of this utility model;

[0022] Figure 3 This is a bottom view of the side plate and conveying pipe of this utility model;

[0023] Figure 4 This is a cross-sectional view of the upper seedling tray of this utility model;

[0024] Figure 5 This is a three-dimensional view of the lower seedling tray of this utility model;

[0025] Figure 6 This is a top view of the upper seedling tray and the card block of this utility model;

[0026] Figure 7 For the present utility model Figure 6 Enlarged view of part A in the image.

[0027] In the diagram: 1. Base plate; 2. Casters; 3. Lower seedling tray; 4. Upper seedling tray; 5. Side plate; 6. Conveying pipe; 7. Hole; 8. Locking block; 9. Cross groove; 10. Mounting screw; 11. Slot; 12. Hole groove; 13. Telescopic rod; 14. Sphere; 15. Groove; 16. Baffle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 This utility model provides a technical solution: a freely expandable seedling tray sowing device, including a base plate 1, the number of base plates 1 is multiple, each base plate 1 is fixedly provided with a universal wheel 2 at the bottom, a lower seedling tray 3 is provided on one side of the base plate 1, and an upper seedling tray 4 is provided above the lower seedling tray 3.

[0030] Each base plate 1 is provided with a side plate 5 above it, and a conveying pipe 6 is provided at the bottom of the side plate 5. There are multiple conveying pipes 6. Holes 7 are provided on the surface of the side plate 5, the base plate 1, the lower seedling tray 3 and the upper seedling tray 4. The holes 7 are connected to the connection of the conveying pipes 6. A locking block 8 is fixedly provided on one side of the side plate 5, the base plate 1, the lower seedling tray 3 and the upper seedling tray 4.

[0031] The upper seedling tray 4 and the lower seedling tray 3 have the same shape. The upper seedling tray 4 and the side plate 5 are double-layered. The bottom surface of the side plate 5 is provided with a cross groove 9. The interior of the cross groove 9 is provided with a mounting screw 10, and the mounting screw 10 extends to the outside of the cross groove 9.

[0032] Please see Figure 5-7The side plate 5, bottom plate 1, lower seedling tray 3, and upper seedling tray 4 are all provided with slots 11, and the slots 11 are adapted to the locking blocks 8. Both sides of the slots 11 are provided with holes 12, and the holes 12 are connected to the slots 11. A telescopic rod 13 is provided inside the slot 11, and a connecting spring is arranged around the outside of the telescopic rod 13. A ball 14 is fixedly installed at one end of the telescopic rod 13 near the slot 11. Both sides of the locking block 8 are provided with grooves 15, and one side of the ball 14 extends into the groove 15. A baffle 16 is provided at the bottom of the slot 11, and the baffle 16 contacts the locking block 8. The double-layered upper seedling tray 4 and the double-layered side plates 5 are in contact. A cross groove 9 is installed on the surface of the lower side plate 5. When the round block merges with the corresponding slot 11, the round block first contacts the ball 14, and by continuing to move downwards, the ball 14... 4. Movement occurs, causing the ball 14 to enter the slot 12, allowing the locking block 8 to merge with the slot 11 and compressing the telescopic rod 13 in the slot 12, shortening the length of the telescopic rod 13 and deforming the connecting spring. Since the locking block 8 and the slot 11 are compatible, through their merger, the groove 15 on the surface of the locking block 8 aligns with the ball 14. After alignment, the connecting spring allows the ball 14 and the telescopic rod 13 to automatically reset, causing part of the ball 14 to merge with the groove 15, improving the stability of the installation. The lower seedling tray 3 is then installed with the base plate 1 using the same installation method, as are the upper seedling tray 4 and the side plate 5. The locking block 8 also contacts the baffle 16 below the slot 11, preventing downward movement and thus improving the stability of the installation.

[0033] During operation, multiple lower seedling trays 3 are installed as needed, with the lower seedling trays 3 attached to the base plate 1, the upper seedling trays 4 attached to the side plates 5, and the locking blocks 8 in contact with the baffles 16 below the slots 11. This contact prevents downward movement, improving installation stability and allowing for the installation of different numbers of upper seedling trays 4 and lower seedling trays 3. This allows for flexible expansion and adaptation to various seedling tray sizes, from 16 to unlimited sizes. This significantly reduces time, labor, and the cost of purchasing new equipment, as the upper seedling trays 4 and side plates 5 are double-layered. When the tray 4 and the upper side plate 5 move, the mounting screw 10 below moves as well. The mounting screw 10 passes through the cross groove 9, allowing the upper seedling tray 4 and the upper side plate 5 to move along the cross groove 9. They can move a short distance, causing the holes 7 on the surface of the upper seedling tray 4 and the upper side plate 5 to separate and misalign with the lower upper seedling tray 4 and the upper side plate 5, thus closing the holes 7. Then, a scraper is used to scrape the seeds so that they are located in the middle of all the holes 7. Then, the upper seedling tray 4 and the upper side plate 5 are moved so that the seeds fall from the conveying pipe 6 into the lower bottom plate 1 and the lower seedling tray 3, which can be used for sowing. This action can be repeated to sow the seeds again.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A freely expandable seedling tray seeding device comprising a base plate (1), characterized in that: The number of the bottom plate (1) is multiple, the bottom of each bottom plate (1) is fixedly provided with universal wheel (2), one side of the bottom plate (1) is provided with lower seedling tray (3), the upper side of the lower seedling tray (3) is provided with upper seedling tray (4); The upper side of each bottom plate (1) is provided with side plate (5), the bottom of the side plate (5) is provided with conveying pipe (6), and the number of the conveying pipe (6) is multiple, the surface of the side plate (5), the bottom plate (1), the lower seedling tray (3) and the upper seedling tray (4) is provided with hole (7), the hole (7) is communicated with the connecting place of the conveying pipe (6), one side of the side plate (5), the bottom plate (1), the lower seedling tray (3) and the upper seedling tray (4) is fixedly provided with clamping block (8).

2. The freely expandable seedling tray seeding device according to claim 1, characterized in that: The upper seedling tray (4) and the lower seedling tray (3) are same in shape, the upper seedling tray (4) and the side plate (5) are double-layered.

3. The freely expandable seedling tray seeding device according to claim 1, characterized in that: The bottom surface of the side plate (5) is provided with cross groove (9), the inside of the cross groove (9) is provided with mounting screw (10), and the mounting screw (10) extends to the outside of the cross groove (9).

4. The freely expandable seedling tray seeding device according to claim 1, wherein: The surface of the side plate (5), the bottom plate (1), the lower seedling tray (3) and the upper seedling tray (4) is provided with clamping groove (11), and the clamping groove (11) is matched with the clamping block (8).

5. The freely expandable seedling tray seeding device according to claim 4, characterized in that: Both sides of the clamping groove (11) are provided with hole groove (12), and the hole groove (12) is communicated with the connecting place of the clamping groove (11), the inside of the clamping groove (11) is provided with telescopic rod (13).

6. A freely expandable seedling tray seeding device according to claim 5, characterized in that: The outside of the telescopic rod (13) is provided with connecting spring, one end of the telescopic rod (13) close to the clamping groove (11) is fixedly provided with ball (14).

7. A freely expandable seedling tray seeding device according to claim 6, characterized in that: Both side surfaces of the clamping block (8) are provided with recess (15), one side of the ball (14) extends to the inside of the recess (15).

8. The freely expandable seedling tray seeding device of claim 4, wherein: The bottom of the clamping groove (11) is provided with baffle (16), and the baffle (16) is in contact with the clamping block (8).

9. The freely expandable seedling tray seeding device of claim 3, wherein: The double-layered upper seedling tray (4) and the double-layered side plate (5) are in contact, and the cross groove (9) is installed on the surface of the lower side plate (5).

Citation Information

Patent Citations

  • Large seed plug seedling seeding device

    CN103548455A

  • Small seed plug seedling seeding device

    CN217011739U