A mobile strong seedling pulling frame

By designing a mobile seedling pulling frame, which utilizes a foot pedal and wheels, the problem of damage during manual seedling pulling was solved, achieving efficient seedling pulling and cost reduction.

CN122228779APending Publication Date: 2026-06-19GUIZHOU TOBACCO CO LIUPANSHUI CO

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUIZHOU TOBACCO CO LIUPANSHUI CO
Filing Date
2026-04-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Manually pulling out tobacco seedlings often damages the seedlings in the nursery field, increasing costs.

Method used

Design a mobile seedling pulling frame, including a footrest, support legs, moving wheels, and moving ropes. The footrest is higher than the height of the tobacco seedlings, and the moving wheels are used to pull the seedlings out, avoiding direct trampling and damage.

Benefits of technology

This method enables efficient harvesting of tobacco seedlings without damaging them, thereby reducing operating costs.

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Abstract

This invention discloses a mobile seedling extraction frame, comprising a footrest, support legs, wheels, and a movable rope. The footrest is positioned parallel to the ground. Two sets of support legs are arranged in pairs, with each pair connected to a corner of the footrest's bottom. Two sets of wheels are also arranged in pairs, connected to the bottom ends of the support legs. A bolted ring is attached to one side of the upper center of the footrest via a connecting bolt, and the middle of the bolted ring is bolted to one end of the movable rope. The frame also includes an opening and a support column. The opening is located in the center above the bolted ring, and the lower end of the support column is movably inserted into the opening. Multiple damping grooves are equidistantly formed on the upper part of the support column surface, and damping blocks are slidably connected within these grooves. Limiting rings are fixed to the outer sides of the damping blocks. This invention allows for the extraction of robust tobacco seedlings without damaging them, improving efficiency, meeting requirements, and reducing subsequent costs associated with damage caused by trampling.
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Description

Technical Field

[0001] This invention relates to the field of tobacco seedling cultivation technology, specifically a mobile seedling extraction frame. Background Technology

[0002] Tobacco seedling cultivation (also known as tobacco seedling raising) refers to the complete agricultural production process of cultivating tobacco seeds into robust seedlings that meet transplanting standards and then planting them in the field. It is the foundation and primary step in tobacco cultivation. In subsequent transplanting, robust seedlings need to be selected and transplanted. Typically, this is done manually in the seedbed. However, this method of selection can lead to damage from trampling due to human movement, affecting the number of seedlings that can be transplanted and increasing costs. Therefore, a mobile seedling selection rack is needed to address these drawbacks and improve efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a mobile seedling extraction rack to solve the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution: This invention is a mobile seedling harvesting frame, comprising a footrest, supporting legs, moving wheels, and a moving rope; The footrest is set parallel to the ground. The support legs are arranged in pairs, with two sets of support legs connected to the corners of the bottom of the footrest. The movable wheels are arranged in pairs, with two sets of movable wheels connected to the bottom ends of the two sets of support legs. A bolted ring is connected to one side of the upper middle part of the footrest by a connecting bolt, and the middle part of the bolted ring is bolted to one end of the movable rope.

[0004] Furthermore, the footrest includes a rectangular tube and short square tubes, with two rectangular tubes arranged symmetrically and multiple short square tubes arranged, and the multiple short square tubes are welded and connected at equal intervals to the inner middle of two rectangular tubes.

[0005] Furthermore, the two sets of support legs are set at a 75° angle to the ground.

[0006] Furthermore, the upper middle part of the two sets of support legs is connected to the bottom end of the two rectangular tubes through a locking post, and the upper end of the locking post is threaded with a locking nut.

[0007] Furthermore, the middle of the bottom end of the two sets of support feet is movably sleeved with a bearing via a protruding post, and the middle of the bearing is movably sleeved with the middle of the upper end of the movable wheel.

[0008] Furthermore, it also includes an opening and a support. The opening is located in the middle above the surface of the bolted ring. The lower end of the support is movably inserted into the opening. Multiple damping grooves are equidistantly provided on the upper part of the support surface. Damping blocks are slidably connected in the multiple damping grooves, and a limit ring is fixed on the outer side of the damping block.

[0009] Furthermore, a first limiting post is fixed on one side of the upper end of the limiting ring, and the first limiting post is L-shaped. A limiting hole is opened in the middle of the top of the post, and a second limiting post extends into the limiting hole through the upper part of the first limiting post.

[0010] The present invention has the following beneficial effects: This invention utilizes a foot pedal, support frame, movable wheels, and movable rope as its basic structure to form a mobile frame for pulling robust tobacco seedlings. When pulling seedlings, the user steps on the foot pedal, which is higher than the height of the tobacco seedlings, preventing damage to the seedlings. By pulling the movable rope, the movable wheels roll on the ground, providing support and displacement for the overall structure. This allows for the pulling of robust tobacco seedlings without damage, improving efficiency, meeting requirements, and reducing subsequent costs caused by damage to seedlings due to trampling. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is an external view of the present invention; Figure 2 This is a left-side view of the footrest of the present invention; Figure 3 This is a schematic diagram illustrating the use of the limiting ring connection in this invention.

[0013] The attached diagram lists the components represented by each number as follows: 11. Footrest; 101. Rectangular tube; 102. Short square tube; 12. Support foot; 13. Moving wheel; 14. Bolted ring; 15. Moving rope; 16. Protruding post; 17. Shaft seat; 18. Locking post; 19. Locking nut; 110. Connecting bolt; 21. Opening; 22. Support column; 23. Damping groove; 24. Damping block; 25. Limiting ring; 26. Limiting post one; 27. Limiting hole; 28. Limiting post two. Detailed Implementation

[0014] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] Please see Figure 1-3 As shown, the present invention is a mobile seedling pulling frame, including a footrest 11, a support leg 12, a moving wheel 13 and a moving soft rope 15; The footrest 11 is set parallel to the ground. The support legs 12 are arranged in pairs, with two sets of support legs connected to the bottom corners of the footrest 11. The movable wheels 13 are arranged in pairs, with two sets of movable wheels connected to the bottom ends of the two sets of support legs 12. A bolted ring 14 is connected to one side of the upper middle part of the footrest 11 by a connecting bolt 110, and the middle part of the bolted ring 14 is bolted to one end of the movable soft rope 15. The footrest 11 is for workers to step on for weighing. The support feet 12, together with the moving wheels 13, move the workers being weighed by rolling on the ground, so as to pull out the strong tobacco seedlings without causing damage due to direct trampling of the seedlings, thus saving costs. The bolting ring 14 is bolted to one end of the moving soft rope 15, and the other end of the moving soft rope 15 is used to hold the footrest and provide the necessary movement force.

[0017] The footrest 11 includes a rectangular tube 101 and short square tubes 102. Two rectangular tubes 101 are symmetrically arranged, and multiple short square tubes 102 are arranged. The multiple short square tubes 102 are welded to the inner middle of two rectangular tubes 101 at equal intervals. The rectangular tube 101, together with multiple short square tubes 102, forms a footrest frame. The assembly process facilitates independent disassembly, replacement, and maintenance after structural damage, thereby reducing operating costs.

[0018] The two sets of support legs 12 are set at a 75° angle to the ground; The angled arrangement of the support foot 12 can further enhance the structural support of the support foot 12 for the foot, ensuring the stability of the device.

[0019] The upper middle part of the two sets of support feet 12 is connected to the bottom end of the two rectangular tubes 101 through locking pins 18, and the upper end of the locking pins 18 is threaded with locking nuts 19. The locking pin 18, together with the locking nut 19, connects the support foot 12 and the rectangular tube 101, and is easy to assemble and disassemble.

[0020] The two sets of support feet 12 are movably sleeved with a bearing seat 17 at the middle of their bottom ends via a protruding post 16, and the middle of the bearing seat 17 is movably sleeved with the middle of the upper end of the movable wheel 13. The protruding post 16 connects the bearing seat 17 to the support foot 12, and then the moving wheel 13 is installed through the bearing seat 17. With the help of the circumferential rotation of the bearing seat 17, the moving wheel 13 can be rotated in multiple directions, which is conducive to the position movement of the footrest.

[0021] This embodiment allows for the removal of strong tobacco seedlings without damaging them, improving the effectiveness of use, meeting requirements, and reducing the subsequent costs associated with damaging the seedlings by trampling.

[0022] Working principle: During the extraction of strong tobacco seedlings, the ends of multiple short square tubes 102 are welded to the inner sides of two long square tubes 101 to form the required stepping frame. Then, support feet 12 are installed at the bottom ends of the two short square tubes 102 through locking columns 18 and locking nuts 19, and the bearing seat 17 is installed through the protruding column 16. The moving wheel 13 is movably sleeved on the middle of the bearing seat 17. At this time, one end of the moving soft rope 15 can be bolted to the bolting ring 14, and the other end of the moving soft rope 15 provides the power required for the movement of the stepping frame. The operator steps on the upper part of the stepping frame and moves with it to extract the required strong seedlings in the seedbed.

[0023] Please see Figure 1-3 As shown, this embodiment is based on the above embodiment: It also includes an opening 21 and a support 22. The opening 21 is located in the middle above the surface of the bolted ring 14. The lower end of the support 22 is movably inserted into the opening 21. Multiple damping grooves 23 are equidistantly provided on the upper part of the surface of the support 22. Damping blocks 24 are slidably connected in the multiple damping grooves 23, and a limit ring 25 is fixed on the outer side of the damping block 24. The opening 21 is used to install and fix the support column 22, providing the structural installation requirements. The damping block 24 is connected to the limiting ring 25 and the height of the limiting ring 25 can be adjusted by damping sliding in the damping groove 23. The limiting ring 25 can structurally limit the moving soft rope 15 wound around the surface of the support column 22 to prevent it from loosening.

[0024] A limiting post 26 is fixed on one side of the upper end of the limiting ring 25, and the limiting post 26 is L-shaped. A limiting hole 27 is opened in the middle of the top of the support post 22, and a limiting post 28 extending into the limiting hole 27 is passed through the upper part of the limiting post 26. The second limiting post 28 penetrates the connection between the first limiting post 26 and the limiting hole 27, which can be used to position the limiting ring 25 after the height is adjusted.

[0025] In this embodiment, while giving the bolting ring 14 the ability to bolt the movable soft rope 15, it can also wind and coil the movable soft rope 15 in conjunction with the support column 22 and the limiting ring 25, thereby improving the applicability and functionality of the structure.

[0026] Working principle: After the bolted ring 14 bolts and limits one end of the movable soft rope 15, after the movable soft rope 15 is used up, it can be connected to the support column 22 through the opening 21. The movable soft rope 15 is wound and wound up by the surface of the support column 22. According to the subsequent winding and winding, the damping block 24 slides in the damping groove 23 to adapt and adjust the limiting ring 25. The inner wall of the limiting ring 25 is pressed against the movable soft rope 15 to prevent it from falling off. After the limiting ring 25 is adjusted, the second limiting post 28 can be inserted into the inside of the first limiting post 26 and positioned by the sleeve of the limiting hole 27.

[0027] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mobile seedling harvesting frame, comprising a footrest (11), support legs (12), wheels (13), and a flexible rope (15), characterized in that: The footrest (11) is set parallel to the ground. The support legs (12) are arranged in pairs, with two sets. The two sets of support legs are connected to the corners of the bottom of the footrest (11). The moving wheels (13) are arranged in pairs, with two sets. The two sets of moving wheels (13) are connected to the bottom of the two sets of support legs (12). A bolted ring (14) is connected to one side of the upper middle part of the footrest (11) by a connecting bolt (110). The middle part of the bolted ring (14) is bolted to one end of the moving soft rope (15).

2. The mobile seedling extraction frame according to claim 1, characterized in that: The footrest (11) includes a rectangular tube (101) and short square tubes (102). Two rectangular tubes (101) are arranged symmetrically, and multiple short square tubes (102) are arranged. The multiple short square tubes (102) are welded at equal intervals to the inner middle of the two rectangular tubes (101).

3. The mobile seedling extraction frame according to claim 1, characterized in that: The two sets of support feet (12) are set at a 75° angle to the ground.

4. A mobile seedling extraction frame according to claim 2, characterized in that: The upper middle part of the two sets of support feet (12) is connected to the bottom end of the two rectangular tubes (101) through locking pins (18), and the upper end of the locking pins (18) is threaded with locking nuts (19).

5. A mobile seedling extraction frame according to claim 1, characterized in that: The two sets of support feet (12) are movably connected to the middle of the bottom end of the bearing seat (17) through the protrusion (16), and the middle of the bearing seat (17) is movably connected to the middle of the upper end of the moving wheel (13).

6. A mobile seedling extraction frame according to claim 1, characterized in that: It also includes an opening (21) and a support (22). The opening (21) is located in the middle above the surface of the bolted ring (14). The lower end of the support (22) is movably inserted into the opening (21). Multiple damping grooves (23) are equidistantly provided on the upper part of the surface of the support (22). Damping blocks (24) are slidably connected in the multiple damping grooves (23), and a limit ring (25) is fixed on the outer side of the damping block (24).

7. A mobile seedling extraction frame according to claim 6, characterized in that: A limiting post one (26) is fixed on one side of the upper end of the limiting ring (25), and the limiting post one (26) is L-shaped. A limiting hole (27) is opened in the middle of the top of the support column (22), and a limiting post two (28) extends into the limiting hole (27) through the upper part of the limiting post one (26).