Sowing surface soil loosening covering device

By designing a combination of rollers, teeth, and soil-breaking rollers, the problem of difficulty in breaking up soil clods in hard soil was solved, achieving uniform soil distribution and healthy seed growth, thus improving sowing efficiency and quality.

CN223993915UActive Publication Date: 2026-03-17WEINAN AGRI SCI RES INST
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Patent Information

Application Number
CN202520164642.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-03-17
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Existing seeders have difficulty effectively breaking up soil clods in hard soil, resulting in uneven seed distribution and affecting the sowing effect.

Method used

A soil loosening and covering device for sowing surface soil was designed, including a roller, teeth, soil crushing roller and transport chain. The teeth on the roller pick up soil clods and send them to the soil crushing roller for finer processing. Combined with belt drive, synchronous operation is achieved to create a soft seedbed.

Benefits of technology

It improves soil looseness and uniformity, enhances sowing efficiency and quality, and ensures even seed distribution and healthy growth.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of seeding. The sowing surface soil loosening and covering device comprises a sowing machine, a fixing frame is installed at the rear end of the sowing machine through bolts, a roller is rotatably installed at the bottom end in the fixing frame, a plurality of pricking teeth are fixedly arranged on the surface of the roller, and a plurality of soil breaking idler wheels are installed on the side face of the roller and located in the fixing frame. A plurality of open grooves are formed in the end, close to the roller, of the bearing plate, a plurality of conveying chains are installed on the periphery of the bearing plate, a seeder is supported through a covering device, a fixing frame is stably installed at the rear end of the covering device, and the roller is rotationally installed at the bottom end in the fixing frame; large soil blocks can be bound by the binding teeth densely distributed on the surface, the soil blocks are ground through the image breaking roller, meanwhile, soil particles of small soil blocks can be further refined, and the soil quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of sowing technology, and in particular to a sowing surface soil loosening and covering device. Background Technology

[0002] As a country with a large agricultural population, my country has witnessed significant progress in its agricultural sector along with the rapid development of its national economy. In this process, advanced agricultural machinery has become a key force driving efficient agricultural development. Among these, the seeder, as one of the most widely used agricultural implements, directly affects the sowing quality, fertilization effectiveness, and final yield of crops.

[0003] In current sowing operations, seeders generally adopt the method of first creating a seedbed. By pre-preparing the soil to form a seedbed, the seeder can more accurately control the sowing depth, ensuring that each seed is evenly planted in the same or similar soil layer. This helps the seeds obtain a balanced supply of water and nutrients during the germination stage, and can also significantly improve the germination rate and uniformity of seed emergence, laying a solid foundation for the healthy growth of crops.

[0004] However, when existing seeders encounter hard soil, the hard soil results in larger clods of soil being turned over, which is not conducive to the even distribution of seeds and root development, and may thus affect the overall seeding effect. Summary of the Invention

[0005] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a surface soil loosening and covering device for sowing, comprising a seeder, a fixed frame bolted to the rear end of the seeder, a roller rotatably mounted at the bottom of the fixed frame, a plurality of teeth fixedly arranged on the surface of the roller, a plurality of soil-crushing rollers mounted on the side of the roller inside the fixed frame, a receiving plate fixedly mounted between the roller and the soil-crushing rollers, a plurality of slots opened at one end of the receiving plate near the roller, a plurality of transport chains mounted around the periphery of the receiving plate, an installation groove opened on the side of the roller inside the fixed frame, a first pulley rotatably mounted inside the installation groove, the first pulley fixedly connected to the roller, a second pulley rotatably mounted at the other end of the installation groove, the second pulley fixedly connected to the transport chains mounted on the receiving plate, and the first pulley and the second pulley being driven by a belt.

[0006] As an improvement to the above technical solution, the teeth installed on the roller are arranged in an alternating pattern.

[0007] As an improvement to the above technical solution, the slot is configured to correspond to each row of teeth on the roller, and the length of the teeth is less than the length of the slot.

[0008] As an improvement to the above technical solution, the transport chain is installed between two adjacent slots.

[0009] As an improvement to the above technical solution, the soil-crushing roller is set at a higher height than the drum, and the receiving plate is set at an angle.

[0010] The beneficial effects of this utility model are as follows: The soil covering device relies on the seeder, with a fixed frame securely installed at its rear end. A roller is rotatably mounted at the bottom of the fixed frame, its surface densely covered with serrations that can trap larger soil clods, which are then crushed by a soil-crushing roller. Simultaneously, smaller soil clods are further refined into soil particles, improving soil quality. A soil-crushing roller is mounted on the side of the roller, and a receiving plate is fixedly installed between the roller and the soil-crushing roller. A transport chain is installed around the receiving plate, which not only enhances the stability of soil transport but also improves the overall load-bearing capacity. Several slots are opened at the end of the receiving plate near the roller, allowing the soil clods trapped by the roller to be sent to the soil-crushing roller for finer crushing. Simultaneously, pulleys on the side of the roller are tightly linked by a drive belt, achieving synchronous and efficient operation of the roller and the transport chain. When the seeder is operating, the roller rolls on the soil surface, simultaneously driving the transport chain to transport larger soil clods. An external motor then drives the soil-crushing roller to complete the entire soil-crushing process, creating a good seedbed with a loose topsoil and a firm bottom, thus improving sowing efficiency and quality. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a three-dimensional sectional view of the present invention;

[0013] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0014] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0015] Reference numerals: 10. Seeder; 11. Bolt; 20. Fixing frame; 21. Roller; 22. Tooth; 23. Soil-crushing roller; 24. Support plate; 25. Groove; 26. Transport chain; 27. Mounting groove; 28. Belt pulley one; 29. ​​Belt pulley two; 210. Belt. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0017] Please see Figure 1-4This utility model provides a technical solution: a surface soil loosening and covering device for sowing, including a seeder 10. A fixed frame 20 is installed at the rear end of the seeder 10 by bolts 11. A roller 21 is rotatably installed at the bottom of the fixed frame 20. Multiple teeth 22 are fixedly provided on the surface of the roller 21. Several soil-breaking rollers 23 are installed on the side of the roller 21 inside the fixed frame 20. A receiving plate 24 is fixedly installed between the roller 21 and the soil-breaking rollers 23. Several slots 25 are opened at one end of the receiving plate 24 near the roller 21. Several transport chains 26 are installed around the outer periphery of the receiving plate 24. An installation groove 27 is opened on the side of the roller 21 inside the fixed frame 20. A pulley 28 is rotatably installed inside the installation groove 27 and is fixedly connected to the roller 21. A pulley 29 is rotatably installed at the other end of the installation groove 27 and is fixedly connected to the transport chains 26 installed on the receiving plate 24. The pulley 28 and the pulley 29 are driven by a belt 210.

[0018] In this embodiment, the soil covering device relies on the seeder 10, with a fixed frame 20 securely installed at its rear end. A roller 21 is rotatably mounted at the bottom of the fixed frame 20. The roller 21, with its surface densely covered with serrations 22, can trap larger soil clods, which are then crushed by a soil-crushing roller. Simultaneously, smaller soil clods can be further refined into soil particles, improving soil quality. A soil-crushing roller 23 is mounted on the side of the roller 21. A receiving plate 24 is fixedly installed between the roller 21 and the soil-crushing roller 23. A transport chain 26 is installed around the receiving plate 24, which not only enhances the stability of soil transport but also improves the overall load-bearing capacity of the structure. The plate 24 has several slots 25 near the end of the roller 21, which can send the soil clods picked up by the roller 21 to the soil crushing roller 23 for finer soil crushing. At the same time, the belt 210 pulley on the side of the roller 21 is closely linked with the transmission belt 210, realizing the synchronous and efficient operation of the roller 21 and the transport chain 26. When the seeder is operating, the roller 21 rolls on the soil surface, while driving the transport chain 26 to transport larger soil clods. The soil crushing roller 23 is then driven by an external motor to complete the entire soil crushing process, creating a good seedbed with loose soil on top and firm soil underneath, thus improving the sowing efficiency and quality.

[0019] Specifically, the teeth 22 installed on the roller 21 are arranged in an alternating pattern.

[0020] In this embodiment, the teeth 22 installed on the roller 21 are arranged in an alternating manner. This design allows the teeth 22 to make more comprehensive contact with the soil when the roller 21 rotates, effectively breaking up smaller soil clumps, reducing soil resistance, and increasing soil looseness. At the same time, the alternating arrangement of the teeth 22 can also form more complex paths in the soil to penetrate larger soil clumps and effectively feed them into the soil crushing roller 23. The device helps to mix and evenly distribute soil particles, providing a softer and more breathable soil environment for seed growth.

[0021] Specifically, the slot 25 is set to correspond to each row of teeth 22 on the roller 21, and the length of the teeth 22 is less than the length of the slot 25.

[0022] In this embodiment, the slots 25 on the receiving plate 24 and each row of teeth 22 on the roller 21 are arranged in a corresponding manner, and the length of the teeth 22 is less than the length of the slots 25. This design allows the teeth 22 to easily penetrate small soil particles when the roller 21 rotates and loosens the soil. Since the length of the slots 25 is greater than the length of the teeth 22, the teeth 22 will not collide with the receiving plate 24 during operation, ensuring the stable operation of the device.

[0023] Specifically, the transport chain 26 is installed between two adjacent slots 25.

[0024] In this embodiment, a transport chain 26 is installed between two adjacent slots 25. When the roller 21 delivers soil clumps to one end of the receiving plate 24, the transport chain 26 can stably and quickly deliver the soil clumps to the soil crushing roller 23 for more detailed soil crushing.

[0025] Specifically, the soil-breaking roller 23 is set at a higher height than the roller 21, and the receiving plate 24 is set at an angle.

[0026] In this embodiment, the soil crushing roller 23 is set at a height higher than the roller 21, and the receiving plate 24 is set at an incline. This increases the transportation time of soil clumps, prevents them from accumulating at one end of the receiving plate 24, causing blockages and affecting the normal operation of the device. At the same time, the crushed soil will fall back onto the land, covering individual seeds with soil to ensure their normal growth.

[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A seed layer soil loosening coverter comprising a seeding machine (10), the rear end of the seeding machine (10) is provided with a fixing frame (20) through a bolt (11), characterized in that: The fixed frame (20) is internally rotatably connected with a roller (21), the surface of the roller (21) is fixedly provided with a plurality of binding teeth (22), the side of the roller (21) is internally provided with a plurality of soil crushing rollers (23) in the fixed frame (20), the roller (21) and the soil crushing rollers (23) are fixedly connected with a receiving plate (24), the end of the receiving plate (24) close to the roller (21) is provided with a plurality of grooves (25), the periphery of the receiving plate (24) is provided with a plurality of conveying chains (26), the side of the roller (21) is internally provided with a mounting groove (27) in the fixed frame (20), the mounting groove (27) is rotatably connected with a belt pulley I (28), the belt pulley I (28) is fixedly connected with the roller (21), the other end of the mounting groove (27) is rotatably connected with a belt pulley II (29), the belt pulley II (29) is fixedly connected with the conveying chains (26) mounted on the receiving plate (24), and the belt pulley I (28) and the belt pulley II (29) are driven by a belt (210).

2. A seed trencher for loosening the surface soil according to claim 1, wherein: The binding teeth (22) mounted on the roller (21) are staggered.

3. A seed trencher for loosening the surface soil according to claim 1, wherein: The grooves (25) are provided corresponding to each column of the binding teeth (22) on the roller (21), and the length of the binding teeth (22) is less than the length of the grooves (25).

4. The seed trenching and soil covering unit of claim 1 wherein: The conveying chains (26) are mounted between two adjacent grooves (25).

5. The seed trenching and soil covering unit of claim 1 wherein: The setting height of the soil crushing rollers (23) is higher than that of the roller (21), and the receiving plate (24) is inclined.