Soil covering device for rice seedling raising

The rice seedling covering device, which uses a chain drive system and a loosening roller structure, solves the problem of soil adhesion, achieves stable soil covering and loosening, and improves the operating efficiency and reliability of the equipment.

CN224178658UActive Publication Date: 2026-05-01XISHUANGBANNA DAI AUTONOMOUS PREFECTURE AGRI SCI RES INST (XISHUANGBANNA DAI AUTONOMOUS PREFECTURE AGRI TECH EXTENSION CENT)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XISHUANGBANNA DAI AUTONOMOUS PREFECTURE AGRI SCI RES INST (XISHUANGBANNA DAI AUTONOMOUS PREFECTURE AGRI TECH EXTENSION CENT)
Filing Date
2025-03-10
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing rice seedling covering devices tend to have soil sticking to them when the soil is turned over, leading to unstable operation, frequent shutdowns for cleaning, reduced work efficiency, and increased costs.

Method used

A rice seedling covering device was designed, which adopts a chain drive system and a loosening roller structure. The covering and loosening operations are driven by the cyclical movement of the chain, and the cleaning plate automatically removes the adhering soil to ensure stable operation of the equipment.

Benefits of technology

It enables soil covering and loosening operations without the need for an additional power source, preventing soil compaction, extending equipment life, improving operational efficiency, and reducing malfunctions.

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Abstract

The utility model discloses a rice seedling raising soil covering device which comprises a soil covering box, the outer wall of the soil covering box is fixedly connected with a pull handle, and the inner wall of the bottom of the soil covering box is rotationally connected with a transmission device; according to the transmission device, the linkage chain wheel and the transmission chain wheel on the rotating rod are matched with the first chain and the second chain, in the process that an operator pushes the soil covering box to move, the wheels rotate to drive the rotating shaft and the positioning chain wheel to rotate, so that the soil covering box is driven to move, and the soil covering box is driven to move. A discharging roller is connected with the first chain through a linkage chain wheel and rotates along with the movement of the first chain, a soil loosening roller is rotationally connected with the inner wall, a rotating rod drives the soil loosening roller to rotate through a transmission chain wheel and a second chain, and a pusher dog turns and loosens soil in a soil covering box; meanwhile, when the pusher dogs rotate to pass through the cleaning plate, the grooves can scrape off the covering soil adhered to the pusher dogs.
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Description

Technical Field

[0001] This utility model relates to the field of rice seedling covering technology, specifically a rice seedling covering device. Background Technology

[0002] Traditional rice seedling covering methods rely heavily on manual operation. Operators need to manually spread the covering material evenly in the seedling area, which not only consumes a lot of manpower and time, but also makes it difficult to ensure the consistency of the covering thickness. With the development of agricultural mechanization, some early rice seedling covering devices have emerged.

[0003] However, these devices generally have some shortcomings. In the early stages of operation, the parts used to turn over the soil were prone to soil adhesion. As the operation time increased, more and more soil adhered, which seriously affected the normal operation of the parts and greatly reduced the soil loosening effect. In order to maintain the normal operation of the equipment, the operators had to frequently stop the machine to clean it, which greatly reduced the operation efficiency and increased the operation cost. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a rice seedling covering device that solves the problem of soil easily adhering to components that turn over the soil.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A rice seedling covering device includes: a covering box, a handle fixedly connected to the outer wall of the covering box, and a transmission device rotatably connected to the inner wall of the bottom of the covering box; a baffle slidably connected to the inner wall of the covering box; guide posts and limiting posts symmetrically fixedly connected to the outer wall of the side of the covering box; a guide plate fixedly connected to the inner wall of the covering box; a support block symmetrically fixedly connected to the outer wall of the covering box; a rotating shaft rotatably connected to the inner wall of the support block; a positioning sprocket fixedly connected to the outer wall of the rotating shaft; a first chain meshing with the outer wall of the positioning sprocket; and wheels symmetrically fixedly connected to the outer wall of the rotating shaft. When the wheels roll on the ground, they drive the rotating shaft to rotate, and the positioning sprocket on the rotating shaft also rotates accordingly. The rotation of the positioning sprocket drives the first chain to circulate.

[0009] Preferably, the outer wall of the bottom of the baffle is slidably connected to the outer wall of the top of the guide plate, which can control the amount of soil flowing into the guide plate area from the soil covering box, thereby adjusting the feeding speed and amount of the soil covering. The outer wall of the guide column is slidably connected to the outer wall of the first chain, and the guide column plays the role of guiding and tensioning the first chain to ensure its stable operation.

[0010] Preferably, the transmission device includes a rotating rod, a feeding roller is fixedly connected to the outer wall of the rotating rod, a linkage sprocket and a transmission sprocket are symmetrically fixedly connected to the outer wall of the rotating rod, and a second chain is meshed with the outer wall of the transmission sprocket.

[0011] Preferably, the outer wall of the linkage sprocket meshes with the inner wall of the first chain. As the first chain moves, the linkage sprocket drives the rotating rod to rotate. The transmission sprocket on the rotating rod rotates with the rotating rod, thereby driving the second chain to move. The outer wall of the feed roller is slidably connected to the outer wall of the bottom of the guide plate. The outer wall of the second chain is slidably connected to the outer wall of the limiting post. The limiting post provides tension and guidance for the second chain, ensuring its stable transmission.

[0012] Preferably, a loosening roller is rotatably connected to the inner wall of the bottom of the covering box, an adjusting sprocket is symmetrically fixed to the outer wall of the loosening roller, a claw is fixedly connected to the outer wall of the loosening roller, a cleaning plate is fixedly connected to the inner wall of the covering box, and a groove is formed on the outer wall of the cleaning plate.

[0013] Preferably, the inner wall of the groove is slidably connected to the outer wall of the pawl. When the pawl rotates past the cleaning plate, the groove can scrape off the soil adhering to the pawl, preventing the soil from accumulating on the pawl. The outer wall of the adjusting sprocket meshes with the inner wall of the second chain, thereby driving the adjusting sprocket to rotate.

[0014] (III) Beneficial Effects

[0015] This utility model provides a soil covering device for rice seedling cultivation. It has the following beneficial effects:

[0016] (i) This transmission device, through the linkage sprocket and transmission sprocket on the rotating rod, cooperates with the first chain and the second chain. When the operator pushes the soil covering box to move, the wheel rotates, driving the rotating shaft and positioning sprocket to rotate, thereby driving the first chain to circulate. The feeding roller is connected to the first chain through the linkage sprocket and rotates with the movement of the first chain. The soil in the soil covering box falls onto the rotating feeding roller and is guided downward by the guide plate to fall for soil covering. This design does not require an additional power source to drive the soil covering and loosening operations, saving energy consumption.

[0017] (II) The soil covering box is connected to a loosening roller on the inner wall. The rotating rod drives the loosening roller to rotate through the transmission sprocket and the second chain, so that the claws turn and loosen the soil in the soil covering box. This can effectively prevent the soil from clumping and ensure that the soil covering is always in a loose state. At the same time, when the claws rotate and pass through the cleaning plate, the groove can scrape off the soil covering adhering to the claws. This automatic cleaning function avoids the accumulation of soil covering on the claws, ensures the loosening effect of the claws, extends the service life of the equipment, reduces the occurrence of equipment failures, and ensures the stable operation of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the transmission device of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the soil covering box of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the feeding roller of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the soil loosening roller of this utility model.

[0024] In the diagram: 1. Covering box; 2. Handle; 3. Transmission device; 11. Baffle; 12. Guide post; 13. Limiting post; 14. Guide plate; 15. Support block; 16. Rotating shaft; 17. Positioning sprocket; 18. First chain; 19. Wheel; 30. Rotating rod; 31. Feed roller; 32. Linkage sprocket; 33. Transmission sprocket; 34. Second chain; 35. Adjusting sprocket; 36. Loosening roller; 37. Claw; 38. Cleaning plate; 39. Groove; Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6This utility model provides a technical solution: a rice seedling covering device, comprising: a covering box 1, a handle 2 fixedly connected to the outer wall of the covering box 1, a transmission device 3 rotatably connected to the inner wall of the bottom of the covering box 1; a baffle 11 slidably connected to the inner wall of the covering box 1, guide posts 12 and limiting posts 13 symmetrically fixedly connected to the outer wall of the side of the covering box 1, a guide plate 14 fixedly connected to the inner wall of the covering box 1, a support block 15 symmetrically fixedly connected to the outer wall of the covering box 1, a rotating shaft 16 rotatably connected to the inner wall of the support block 15, a positioning sprocket 17 fixedly connected to the outer wall of the rotating shaft 16, a first chain 18 meshing with the outer wall of the positioning sprocket 17, and wheels 19 symmetrically fixedly connected to the outer wall of the rotating shaft 16. When the wheels 19 roll on the ground, they will drive the rotating shaft 16 to rotate together, and the positioning sprocket 17 on the rotating shaft 16 will also rotate accordingly. The rotation of the positioning sprocket 17 will drive the first chain 18 to circulate.

[0027] The outer wall at the bottom of the baffle 11 is slidably connected to the outer wall at the top of the guide plate 14, which can control the amount of soil flowing into the area of ​​the guide plate 14 in the soil covering box 1, thereby adjusting the feeding speed and amount of the soil covering. The outer wall of the guide column 12 is slidably connected to the outer wall of the first chain 18. The guide column 12 plays the role of guiding and tensioning the first chain 18, ensuring its stable operation.

[0028] The transmission device 3 includes a rotating rod 30, a feeding roller 31 is fixedly connected to the outer wall of the rotating rod 30, a linkage sprocket 32 ​​and a transmission sprocket 33 are symmetrically fixedly connected to the outer wall of the rotating rod 30, and a second chain 34 is meshed with the outer wall of the transmission sprocket 33.

[0029] The outer wall of the linkage sprocket 32 ​​meshes with the inner wall of the first chain 18. As the first chain 18 moves, the linkage sprocket 32 ​​drives the rotating rod 30 to rotate. The transmission sprocket 33 on the rotating rod 30 rotates with the rotating rod 30, thereby driving the second chain 34 to move. The outer wall of the feed roller 31 is slidably connected to the outer wall of the bottom of the guide plate 14. The outer wall of the second chain 34 is slidably connected to the outer wall of the limiting post 13. The limiting post 13 provides tension and guidance for the second chain 34, ensuring its stable transmission.

[0030] A loosening roller 36 is rotatably connected to the inner wall of the bottom of the soil covering box 1. An adjusting sprocket 35 is symmetrically fixedly connected to the outer wall of the loosening roller 36. A claw 37 is fixedly connected to the outer wall of the loosening roller 36. A cleaning plate 38 is fixedly connected to the inner wall of the soil covering box 1. A groove 39 is provided on the outer wall of the cleaning plate 38.

[0031] The inner wall of the groove 39 is slidably connected to the outer wall of the pawl 37. When the pawl 37 rotates past the cleaning plate 38, the groove 39 can scrape off the soil adhering to the pawl 37, preventing the soil from accumulating on the pawl 37. The outer wall of the adjusting sprocket 35 meshes with the inner wall of the second chain 34, thereby driving the adjusting sprocket 35 to rotate.

[0032] When in use, the operator holds the handle 2 and pushes the soil covering box 1 to move. During the movement, the soil in the soil covering box 1 is brought out by the feed roller 31 in the transmission device 3 to carry out the soil covering operation.

[0033] During the movement, the wheel 19 rolls on the ground. Since the axle 16 is rotatably connected to the support block 15 and the wheel 19 is fixed on the axle 16, when the wheel 19 rotates, it will drive the axle 16 to rotate together. The positioning sprocket 17 on the axle 16 will also rotate. Since the positioning sprocket 17 is engaged with the first chain 18, the rotation of the positioning sprocket 17 will drive the first chain 18 to circulate, providing power for the subsequent soil covering and loosening operations. The guide column 12 plays the role of guiding and tensioning the first chain 18 to ensure its stable operation.

[0034] The linkage sprocket 32 ​​on the rotating rod 30 in the transmission device 3 meshes with the inner wall of the first chain 18. As the first chain 18 moves, the linkage sprocket 32 ​​drives the rotating rod 30 to rotate. The rotating rod 30 is fixed with a feeding roller 31, which also rotates. The soil covering box 1 is filled with soil for seedling cultivation. Under the action of gravity, the soil falls onto the feeding roller 31. As the feeding roller 31 rotates and its outer wall is slidably connected to the outer wall of the bottom of the guide plate 14, the guide plate 14 guides the soil to fall downward. The baffle 11 can slide on the inner wall of the soil covering box 1, and its bottom is slidably connected to the top of the guide plate 14. This can control the amount of soil flowing into the area of ​​the guide plate 14 in the soil covering box 1, thereby adjusting the feeding speed and amount of the soil covering.

[0035] The transmission sprocket 33 on the rotating rod 30 rotates with the rotating rod 30. The transmission sprocket 33 meshes with the second chain 34, thereby driving the second chain 34 to move. The limiting post 13 provides tension and guidance for the second chain 34 to ensure stable transmission. The second chain 34 meshes with the inner wall of the adjusting sprocket 35 on the loosening roller 36, driving the adjusting sprocket 35 to rotate, which in turn causes the loosening roller 36 to rotate. A claw 37 is fixed on the loosening roller 36. The claw 37 rotates with the loosening roller 36. Inside the covering box 1, the claw 37 can turn over and loosen the covering soil to prevent the covering soil from clumping and ensure the loose state of the covering soil, which is convenient for subsequent material feeding and covering operations.

[0036] Soil will adhere to the loosening roller 36. If it is not cleaned in time, it will affect the loosening efficiency. At this time, the cleaning plate 38 plays a role. The outer wall of the cleaning plate 38 has a groove 39. As the loosening roller 36 rotates, the groove 39 slides against the claw 37. When the claw 37 rotates and passes the cleaning plate 38, the groove 39 can scrape off the soil adhering to the claw 37, preventing the soil from accumulating on the claw 37, ensuring the loosening effect of the claw 37 and the normal operation of the equipment.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice seedling raising and soil covering device, comprising: A soil covering box (1), wherein a handle (2) is fixedly connected to the outer wall of the soil covering box (1), characterized in that a transmission device (3) is rotatably connected to the inner wall of the bottom of the soil covering box (1). The inner wall of the soil covering box (1) is slidably connected to a baffle (11). The outer wall of the side of the soil covering box (1) is symmetrically fixedly connected to a guide post (12) and a limiting post (13). The inner wall of the soil covering box (1) is fixedly connected to a guide plate (14). The outer wall of the soil covering box (1) is symmetrically fixedly connected to a support block (15). The inner wall of the support block (15) is rotatably connected to a rotating shaft (16). The outer wall of the rotating shaft (16) is fixedly connected to a positioning sprocket (17). The outer wall of the positioning sprocket (17) is meshed with a first chain (18). The outer wall of the rotating shaft (16) is symmetrically fixedly connected to a wheel (19).

2. The rice seedling covering device according to claim 1, characterized in that: The outer wall at the bottom of the baffle (11) is slidably connected to the outer wall at the top of the guide plate (14), and the outer wall of the guide post (12) is slidably connected to the outer wall of the first chain (18).

3. The rice seedling raising and soil covering apparatus according to claim 1, wherein: The transmission device (3) includes a rotating rod (30), a feeding roller (31) is fixedly connected to the outer wall of the rotating rod (30), a linkage sprocket (32) and a transmission sprocket (33) are symmetrically fixedly connected to the outer wall of the rotating rod (30), and a second chain (34) is meshed with the outer wall of the transmission sprocket (33).

4. The rice seedling raising and soil covering device according to claim 3, characterized in that: The outer wall of the linkage sprocket (32) meshes with the inner wall of the first chain (18), the outer wall of the feed roller (31) is slidably connected to the outer wall of the bottom of the guide plate (14), and the outer wall of the second chain (34) is slidably connected to the outer wall of the limiting post (13).

5. The rice seedling raising and soil covering device according to claim 1, characterized in that: The inner wall of the bottom of the soil covering box (1) is rotatably connected to a loosening roller (36), the outer wall of the loosening roller (36) is symmetrically fixedly connected to an adjusting sprocket (35), the outer wall of the loosening roller (36) is fixedly connected to a claw (37), the inner wall of the soil covering box (1) is fixedly connected to a cleaning plate (38), and the outer wall of the cleaning plate (38) is provided with a groove (39).

6. The rice seedling raising and soil covering apparatus according to claim 5, wherein: The inner wall of the groove (39) is slidably connected to the outer wall of the pawl (37), and the outer wall of the adjusting sprocket (35) meshes with the inner wall of the second chain (34).