Full-film double-furrow seeder for saline-alkali soil

By introducing a ground-inserting cone, grounding wheel, and adjustable moving wheel structure into the seeder, the problems of mulch film damage and scattering during full-film double-ridge furrow sowing in saline-alkali land have been solved, thereby improving the stability of the mulch film and the sowing efficiency.

CN223928873UActive Publication Date: 2026-02-24COTTON RES INST HEBEI ACAD OF AGRI & FOREST SCI +2
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Patent Information

Application Number
CN202520596609.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-02-24
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

Existing seeders are prone to causing excessive damage and scattering of the plastic film during the double-ridge sowing process in saline-alkali land, which affects the planting effect.

Method used

A double-ridge furrow seeder for saline-alkali land with full film mulch was designed. The seeding assembly consists of a seeding cone, a grounding wheel, a spring, and a baffle plate. Combined with adjustable moving wheels and a sliding frame structure, it ensures that the seeding cone is stably inserted into the ground and avoids tearing of the mulch film. The grounding wheel presses the mulch film to maintain its stability.

Benefits of technology

This effectively avoids tearing and scattering of the plastic film, ensuring its integrity and improving the applicability and sowing efficiency of the seeder under different furrow sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a saline-alkali land full-film double-furrow seeder which comprises a rack, moving wheels are arranged on the lower side of the rack, an adjusting assembly used for adjusting the working positions of the moving wheels is arranged between the moving wheels and the rack, a seed box is arranged on the rack, a seed-metering device is installed on the lower side of the seed box, a transmission shaft is connected to the seed-metering device, and the transmission shaft is connected to the rack. The end of the transmission shaft is in transmission connection with a motor through a transmission chain wheel set, and the motor is installed on the machine frame. The full-film double-furrow seeder for the saline-alkali soil can be grounded through the grounding wheel after the ground insertion conical head is inserted into the ground, the ground insertion conical head can be opened along with continuous downward insertion of the ground insertion conical head, seeds can be conveniently sown into the ground, and in the process that the ground insertion conical head is inserted into the ground and separated from the ground, the grounding wheel can tightly press a mulching film to avoid scattering of the mulching film; the ground inserting conical head can be conveniently separated from the mulching film, and the situation that the mulching film is torn and damaged excessively due to the ground inserting conical head is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of seeding technology, specifically a double-ridge seeding machine for saline-alkali land with full film covering. Background Technology

[0002] Full-film double-ridge furrow planting on saline-alkali land is a new dryland farming technology that integrates three technologies: mulching to suppress evaporation, rainwater harvesting on the film surface, and ridge-furrow planting. The specific operation involves creating double ridges in the saline-alkali field, fully covering them with plastic film, and sowing crops in the furrows.

[0003] Currently, when using a seeder for double-ridge planting with full film covering in saline-alkali land, the film can easily tear and rip up the film during the seeding process, causing excessive damage and scattered folds, which affects the later planting effect of full film covering in saline-alkali land. Therefore, we have proposed a double-ridge seeder for full film covering in saline-alkali land to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a double-ridged furrow seeder for saline-alkali land with full film covering, in order to solve the problems mentioned in the background art, where current seeders are prone to excessive damage and scattering of the film during operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-ridge furrow seeder for saline-alkali land with full film mulching, comprising a frame, with movable wheels on the lower side of the frame, an adjustment component between the movable wheels and the frame for adjusting the working position of the movable wheels, a seed box on the frame, a seed metering device installed on the lower side of the seed box, a drive shaft connected to the seed metering device, the end of the drive shaft being connected to a motor via a drive sprocket set, the motor being mounted on the frame, a seed-distributing roller installed inside the seed metering device, the seed-distributing roller rotating within the seed metering device via the drive shaft, a guide pipe on the lower side of the seed metering device, a ground-inserting rod connected to the lower end of the guide pipe, a ground-inserting and sowing component at the lower end of the ground-inserting rod, the ground-inserting rod being mounted on a sliding frame, the two sides of the sliding frame being slidably connected to sliding limit blocks, the sliding limit blocks being fixed on the frame, a connecting rod movably connected to the upper side of the sliding frame, a crankshaft movably connected to the upper end of the connecting rod, the crankshaft being mounted on the frame, and the crankshaft being connected to the motor via a drive sprocket set.

[0006] Preferably, the adjustment assembly includes a wheel frame, a threaded rod, and a slide rod. The threaded rod is connected to the frame bearing, and a throttle is fixed at both ends of the threaded rod. The slide rod is fixedly connected to the frame. The threaded rod and the slide rod are both connected through the two wheel frames. The threaded rod is threadedly connected to the wheel frame, and the slide rod is slidably connected to the wheel frame. The threads on the left and right sides of the threaded rod are in opposite directions.

[0007] Preferably, the seeding roller has a groove, and the outer dimensions of the seeding roller are the same as the inner dimensions of the seed metering device. The seeding roller separates the connection between the seed box and the guide pipe.

[0008] Preferably, the sliding frame forms a stable up-and-down moving structure within the sliding limit block on the frame through the rotation of the crankshaft.

[0009] Preferably, the grounding rod is connected to the sliding frame via a fixing buckle and a locking bolt to form a detachable structure.

[0010] Preferably, the planting assembly includes a planting cone, a connecting rod, a movable rod, a grounding wheel, a spring, and a baffle. The planting cone is hinged to the lower end of the planting rod. The outer side of the planting cone is movably connected to the lower side of the movable rod via the connecting rod. One end of the movable rod is movably connected to the planting rod, and the other end is equipped with a grounding wheel. A spring is fixed to the upper side of the movable rod, and the upper end of the spring is fixed to the lower side of the baffle. The baffle is fixed to the planting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The saline-alkali land full-film double-ridge furrow seeder is equipped with a ground-inserting cone at the lower end of the ground-inserting rod. The upper part of both sides of the ground-inserting cone is equipped with a connecting rod, a movable rod, a grounding wheel, a spring and a baffle. After the ground-inserting cone is inserted into the ground, it can be grounded through the grounding wheel. As the ground-inserting cone continues to be inserted into the ground, it can open up to facilitate the planting of seeds. In addition, during the process of the ground-inserting cone being inserted into the ground and leaving the ground, the grounding wheel will press the mulch film tightly to prevent the mulch film from scattering. It also facilitates the separation of the ground-inserting cone from the mulch film and avoids excessive damage to the mulch film due to the tearing caused by the ground-inserting cone.

[0013] (2) The frame is equipped with adjustable casters, which can make the spacing between the casters suitable for the spacing between the furrows, so that the whole device can move between the furrows, ensuring the normal operation of the device and avoiding damage to the furrows. The ground rods on the sliding frame can also be adjusted up, down and left and right to facilitate planting work with different furrow sizes, thus improving the applicability of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the lower structure of the seed box of this utility model;

[0016] Figure 3 This is a cross-sectional view of the seed box of this utility model;

[0017] Figure 4 This is a schematic diagram of the sliding frame structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the connection structure between the frame and the wheel frame of this utility model;

[0019] Figure 6 This is a schematic diagram of the connection structure between the ground insertion rod and the sliding frame of this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the planting component at the lower end of the planting pole of this utility model.

[0021] In the diagram: 1. Frame; 2. Wheel frame; 3. Threaded rod; 4. Slide rod; 5. Throttle; 6. Seed box; 7. Seed metering device; 8. Drive shaft; 9. Seeding roller; 10. Guide pipe; 11. Grounding rod; 12. Fixing buckle; 13. Sliding frame; 14. Sliding limit block; 15. Connecting rod; 16. Crankshaft; 17. Motor; 18. Drive sprocket assembly; 19. Locking bolt; 20. Grounding cone; 21. Connecting rod; 22. Movable rod; 23. Grounding wheel; 24. Spring; 25. Baffle plate; 26. Moving wheel. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-7 This utility model provides a technical solution: a double-ridge furrow seeder for saline-alkali land with full film covering, including a frame 1, with a movable wheel 26 on the lower side of the frame 1, and an adjustment component between the movable wheel 26 and the frame 1 for adjusting the working position of the movable wheel 26.

[0024] Furthermore, the adjustment assembly includes a wheel frame 2, a threaded rod 3, and a sliding rod 4. The threaded rod 3 is connected to the bearing of the frame 1, and a throttle 5 is fixed at both ends of the threaded rod 3. The sliding rod 4 is fixedly connected to the frame 1. The threaded rod 3 and the sliding rod 4 are both connected through the two wheel frames 2. The threaded rod 3 is threadedly connected to the wheel frame 2, and the sliding rod 4 is slidably connected to the wheel frame 2. The threads on the left and right sides of the threaded rod 3 are in opposite directions, so that the two wheel frames 2 can move in opposite directions by rotating the threaded rod 3. This makes it convenient to adjust the working distance of the moving wheels 26, making it suitable for inter-row sowing work of different sizes.

[0025] A seed box 6 is provided on the frame 1. A seed metering device 7 is installed on the lower side of the seed box 6. A drive shaft 8 is connected to the seed metering device 7. The end of the drive shaft 8 is connected to the motor 17 through a drive sprocket set 18. The motor 17 is installed on the frame 1. A seed separating roller 9 is installed inside the seed metering device 7. The seed separating roller 9 rotates inside the seed metering device 7 through the drive shaft 8. A guide pipe 10 is provided on the lower side of the seed metering device 7. The lower end of the guide pipe 10 is connected to a ground-inserting rod 11. A ground-inserting sowing component is provided at the lower end of the ground-inserting rod 11.

[0026] Furthermore, the seeding roller 9 is provided with a groove, and the external dimensions of the seeding roller 9 are the same as the internal dimensions of the seed metering device 7. The seeding roller 9 separates the connection between the seed box 6 and the guide pipe 10. By the seeding roller 9, an equal amount of seeds are pushed down, thereby completing the sowing of an equal amount of seeds.

[0027] Furthermore, the ground-planting assembly includes a planting cone 20, a connecting rod 21, a movable rod 22, a grounding wheel 23, a spring 24, and a baffle 25. The planting cone 20 is hinged to the lower end of the planting rod 11. The outer side of the planting cone 20 is movably connected to the lower side of the movable rod 22 via the connecting rod 21. One end of the movable rod 22 is movably connected to the planting rod 11, and the other end is equipped with the grounding wheel 23. A spring 24 is fixed to the upper side of the movable rod 22, and the upper end of the spring 24 is fixed to the lower side of the baffle 25. The baffle 25 is fixed to the planting rod 11. Through the spring 24, the movable rod 22, and the connecting rod 21, the planting cone 20 can be kept in a stable closed state to prevent seeds from falling to the ground. At the same time, as the planting cone 20 continues to penetrate the ground, the grounding wheel 23 contacts the ground, allowing the planting cone 20 to be in an open state, facilitating the sowing work. At the same time, the grounding wheel 23 can stabilize the mulch film on the ground, ensuring its normal working state.

[0028] The grounding rod 11 is installed on the sliding frame 13. The two sides of the sliding frame 13 are slidably connected to the sliding limit block 14. The sliding limit block 14 is fixed on the frame 1. The upper side of the sliding frame 13 is movably connected to the connecting rod 15. The upper end of the connecting rod 15 is movably connected to the crankshaft 16. The crankshaft 16 is installed on the frame 1. The crankshaft 16 is connected to the motor 17 through the transmission sprocket set 18.

[0029] Furthermore, the sliding frame 13 forms a stable up-and-down moving structure within the sliding limit block 14 on the frame 1 through the rotation of the crankshaft 16, which enables the planting rod 11 to move up and down in conjunction, thereby completing the planting and sowing work.

[0030] Furthermore, the ground stake 11 is connected to the sliding frame 13 via a fixing buckle 12 and a locking bolt 19 to form a detachable structure, which facilitates the adjustment of the left and right working positions and the height of the working positions of the ground stake 11, making it suitable for different sizes of ridges and improving the applicability of the device.

[0031] Working principle: When using this saline-alkali land full-film double-ridge furrow seeder, first adjust the position of the moving wheels 26 on the frame 1 according to the spacing of the furrows so that the spacing between the moving wheels 26 is suitable for the furrow spacing, ensuring that the device can move normally in the furrows. Then rotate the handle 5 to make the threaded rod 3 rotate synchronously. The two wheel frames 2 connected to the threaded rod 3 move in opposite directions, thereby changing the position of the moving wheels 26. At the same time, the slide bar 4 can strengthen the stability of the connection between the wheel frames 2 and the frame 1, ensuring stable support for the frame 1.

[0032] After the position of the moving wheel 26 is adjusted, the position of the ground-inserting rod 11 on the sliding frame 13 can be adjusted according to the distance between two adjacent furrows below the frame 1 to ensure that the ground-inserting rod 11 is sown at the bottom of the furrow. The locking bolt 19 on the fixing buckle 12 can be rotated to loosen the fixing state of the ground-inserting rod 11 and adjust its position up and down or left and right. After the position is determined, the position of the ground-inserting rod 11 on the sliding frame 13 is fixed again by the locking bolt 19 and the fixing buckle 12.

[0033] After the device is adjusted, connect the entire device to the traction device so that the device can move in the field. Place the seeds required for sowing in the seed box 6, and then start the motor 17. The transmission sprocket group 18 drives the crankshaft 16 and the transmission shaft 8 to rotate synchronously. The rotation of the crankshaft 16, through the connecting rod 15, causes the sliding frame 13 to move stably up and down in the sliding limit block 14, thereby realizing the up and down movement of the planting rod 11. The rotation of the transmission shaft 8 causes the seeding roller 9 to rotate in the seed metering device 7. The seeds in the seed box 6 will enter the groove on the seeding roller 9. As the seeding roller 9 rotates, a certain amount of seeds can be transferred to the guide pipe 10. The seeds are then transported to the planting rod 11 through the guide pipe 10 and then fall into the planting cone head 20.

[0034] As the planting pole 11 moves down, the planting cone 20 penetrates the mulch and inserts into the ground. At the same time, the grounding wheel 23 contacts the ground. As the planting cone 20 continues to be inserted into the ground, the grounding wheel 23 presses the mulch on the ground and opens the planting cone 20 through the connecting rod 21 and the movable rod 22, so that the seeds inside the planting cone 20 will fall into the ground.

[0035] Subsequently, as the grounding rod 11 moves upward, the grounding cone 20 moves upward as well. During this process, the grounding wheel 23 is pressing against the mulch film, which helps the grounding cone 20 to separate from the mulch film, preventing the grounding cone 20 from tearing the mulch film along with it, and ensuring the stable working state of the mulch film.

[0036] As the planting cone 20 moves upward, the position of the grounding wheel 23 also moves upward. Under the action of the spring 24, the movable rod 22 can be pressed down. The movable rod 22, through the connecting rod 21, makes the planting cone 20 return to the closed state, so as to ensure the normal progress of the next planting and sowing work.

[0037] The above describes the working process of the seeder. Any content not described in detail in this manual is existing technology known to those skilled in the art.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-ridge furrow seeder for saline-alkali land with full film mulching, comprising a frame (1), characterized in that: The frame (1) is provided with a moving wheel (26) on its lower side, and an adjustment component for adjusting the working position of the moving wheel (26) is provided between the moving wheel (26) and the frame (1); The frame (1) is provided with a seed box (6), and a seed metering device (7) is installed on the lower side of the seed box (6). A drive shaft (8) is connected to the seed metering device (7). The end of the drive shaft (8) is connected to a motor (17) through a drive sprocket set (18). The motor (17) is installed on the frame (1). A seed-separating roller (9) is installed inside the seed metering device (7). The seed-separating roller (9) rotates inside the seed metering device (7) through the drive shaft (8). A guide pipe (10) is provided on the lower side of the seed metering device (7). The lower end of the guide pipe (10) is connected to a ground-inserting rod (11). The lower end of the ground-inserting rod (11) is provided with a ground-inserting sowing component. The grounding rod (11) is installed on the sliding frame (13). The two sides of the sliding frame (13) are slidably connected in the sliding limit block (14). The sliding limit block (14) is fixed on the frame (1). A connecting rod (15) is movably connected to the upper side of the sliding frame (13). A crankshaft (16) is movably connected to the upper end of the connecting rod (15). The crankshaft (16) is installed on the frame (1). The crankshaft (16) is connected to the motor (17) through the transmission sprocket set (18).

2. The double-ridge seeder for saline-alkali land with full film mulching according to claim 1, characterized in that: The adjustment assembly includes a wheel frame (2), a threaded rod (3), and a sliding rod (4). The threaded rod (3) is connected to the bearing of the frame (1), and a throttle (5) is fixed at both ends of the threaded rod (3). The sliding rod (4) is fixedly connected to the frame (1). The threaded rod (3) and the sliding rod (4) are both connected through the two wheel frames (2). The threaded rod (3) is threadedly connected to the wheel frame (2), and the sliding rod (4) is slidably connected to the wheel frame (2). The threads on the left and right sides of the threaded rod (3) are in opposite directions.

3. The saline-alkali land full-film double-ridge furrow seeder according to claim 1, characterized in that: The seeding roller (9) has a groove, and the outer dimensions of the seeding roller (9) are the same as the inner dimensions of the seed metering device (7). The seeding roller (9) separates the connection between the seed box (6) and the guide pipe (10).

4. The double-ridge seeder for saline-alkali land with full film mulching according to claim 1, characterized in that: The sliding frame (13) forms a stable up-and-down moving structure within the sliding limit block (14) on the frame (1) by the rotation of the crankshaft (16).

5. A double-ridge seeder for saline-alkali land with full film mulching according to claim 1, characterized in that: The ground-inserting rod (11) is connected to the sliding frame (13) via a fixing buckle (12) and a locking bolt (19) to form a disassembly structure.

6. A double-ridge seeder for saline-alkali land with full film mulching according to claim 1, characterized in that: The planting assembly includes a planting cone (20), a connecting rod (21), a movable rod (22), a grounding wheel (23), a spring (24), and a baffle (25). The planting cone (20) is hinged to the lower end of the planting rod (11). The outer side of the planting cone (20) is movably connected to the lower side of the movable rod (22) via the connecting rod (21). One end of the movable rod (22) is movably connected to the planting rod (11), and the other end is equipped with a grounding wheel (23). A spring (24) is fixed on the upper side of the movable rod (22). The upper end of the spring (24) is fixed to the lower side of the baffle (25), and the baffle (25) is fixed on the planting rod (11).