Farmland drainage pipeline with automatic dredging function

By combining a motor-driven sprocket, chain, and spiral blades, the automatic sludge removal function of farmland drainage pipes is realized, solving the problem of reduced drainage capacity caused by sludge deposition, improving efficiency, and reducing labor intensity and maintenance costs.

CN224259303UActive Publication Date: 2026-05-19HENAN SHUNHONG WATER CONSERVANCY ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN SHUNHONG WATER CONSERVANCY ENG CO LTD
Filing Date
2025-03-18
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing farmland drainage pipes suffer from reduced drainage capacity due to siltation. Manual dredging is labor-intensive and inefficient, while mechanical dredging is costly and difficult to automate.

Method used

Design a farmland drainage pipe with automatic sludge removal function. The sludge is automatically removed by a combination of motor-driven sprocket, chain, spiral blade and reciprocating screw, and the aging spiral blade can be replaced.

Benefits of technology

It enables automatic sludge removal during drainage, saving time and manpower, reducing labor intensity, improving efficiency, and allowing for easy replacement of the spiral blades when they age, thus reducing maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224259303U_ABST
    Figure CN224259303U_ABST
Patent Text Reader

Abstract

The farmland drainage pipeline with the automatic dredging function comprises a drainage pipe, a fixing sleeve is arranged on the inner side of the drainage pipe, the bottom end of the inner side of the fixing sleeve is rotationally connected with a fixing shaft penetrating through the fixing sleeve, and a guide shaft penetrating through the fixing sleeve is arranged at the top end of the inner side of the fixing sleeve. A reciprocating lead screw, a sliding block, a large gear, the guiding shaft, a fixing sleeve, a chain wheel, a chain and a spiral blade are arranged, the outer side of the guiding shaft and the outer side of the fixing shaft are each provided with a chain wheel, and the chain wheel at the bottom is fixedly connected with the fixing shaft. The rotating spiral blade is continuously controlled to do reciprocating motion in the farmland drainage process, and the rotating spiral blade is matched to continuously convey sludge deposited at the bottom of the drainage pipe, so that the deposited sludge is automatically cleaned in the drainage process, time and manpower are saved, the labor intensity is reduced, and the drainage efficiency is improved. And the efficiency is improved, and the cost is saved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of farmland drainage pipe technology, and in particular to a farmland drainage pipe with automatic dredging function. Background Technology

[0002] Farmland drainage systems are crucial for agricultural production, playing a key role in regulating soil moisture and preventing crop waterlogging. Straight drainage pipes are widely used in farmland drainage projects due to their simple structure and low cost. However, in practical use, straight drainage pipes face a serious problem of silt accumulation. Farmland drainage water often carries large amounts of silt and other impurities, which easily accumulate in the pipes over time, causing the effective cross-sectional area of ​​the drainage pipe to continuously decrease and the drainage capacity to drop significantly. In the event of heavy rainfall, poor drainage can lead to farmland flooding, severely affecting crop growth and development, and even causing yield reduction or crop failure. To address the problem of drainage pipe blockage, existing technologies typically involve manual or mechanical dredging. While these methods can achieve silt removal, manual dredging requires a large investment of manpower and time, is labor-intensive, and has low efficiency. Mechanical dredging, while solving the problem, is costly. Therefore, this paper proposes a farmland drainage pipe with automatic silt removal function to address these issues. Utility Model Content

[0003] The technical problem to be solved by this utility model overcomes the existing defects and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An agricultural drainage pipe with automatic sludge removal function includes a drainage pipe, a fixed sleeve on the inner side of the drainage pipe, a fixed shaft rotatably connected to the bottom inner side of the fixed sleeve, a guide shaft rotatably connected to the top inner side of the fixed sleeve, sprockets on the outer sides of the guide shaft and the fixed shaft, the bottom sprocket being fixedly connected to the fixed shaft, and the top sprocket being slidably connected to the guide shaft, a chain meshing with the outer side of the sprockets, a connecting sleeve fixedly connected to the right end of the fixed shaft, a spiral blade on the inner right end of the connecting sleeve, a positioning block two rotatably connected to the left end of the guide shaft and fixedly connected to the drainage pipe, a bracket rotatably connected to the right end of the outer side of the guide shaft and fixedly connected to the drainage pipe, a motor fixedly connected to the right end of the bracket, the motor's main shaft passing through the bracket, the motor's main shaft rotatably connected to the bracket and the drainage pipe, a large gear fixedly connected to the outer side of the motor's main shaft, and a small gear meshing with the outer side of the large gear and fixedly connected to the guide shaft.

[0006] As a further improvement of this utility model, a positioning block is fixedly connected to the inner side of the top sprocket, and the positioning block is slidably connected to the guide shaft.

[0007] As a further improvement of this utility model, protective sleeves are fixedly connected to the left and right sides of the top of the fixed sleeve, and the protective sleeves are slidably connected to the guide shaft. The protective sleeves are made of smooth ceramic material.

[0008] As a further improvement of this utility model, the end of the main shaft of the motor is fixedly connected to a reciprocating lead screw that is rotatably connected to the drain pipe. A slider that is slidably connected to the drain pipe is slidably connected to the outside of the reciprocating lead screw. A limiting block that is rotatably connected to the reciprocating lead screw is rotatably connected to the inside of the slider. The slider is fixedly connected to the fixed sleeve.

[0009] As a further improvement of this utility model, a threaded shaft is rotatably connected to the outside of the connecting sleeve, and a locking block that is slidably connected to the outside of the threaded shaft is spirally connected to the connecting sleeve. The locking block is arranged in a cuboid shape and is engaged with the spiral blade.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. A farmland drainage pipe with automatic sludge removal function, comprising a reciprocating screw, slider, large gear, guide shaft, fixed sleeve, sprocket, chain, and spiral blades, wherein during farmland drainage, a motor is simultaneously started. The motor drives the large gear to mesh with the small gear, which in turn drives the top sprocket to mesh with the chain via a positioning block on the outside of the guide shaft. When the chain meshes with the bottom sprocket, the spiral blades are rotated via the fixed shaft and connecting sleeve. Simultaneously, the motor also drives the reciprocating screw to rotate. The slider, limited by a limit block, further drives the fixed sleeve to reciprocate left and right, thus driving the rotating spiral blades to reciprocate left and right. During this process, the positioning block continuously slides against the guide shaft. By continuously controlling the reciprocating motion of the rotating spiral blades during farmland drainage, the rotating spiral blades continuously transport the sludge deposited at the bottom of the drainage pipe, achieving automatic sludge removal during drainage. This not only saves time and manpower, reduces labor intensity, but also improves efficiency and reduces costs.

[0012] 2. A farmland drainage pipe with automatic sludge removal function, which, through the setting of a connecting sleeve, threaded shaft, clamping block and spiral blade, when the spiral blade rusts and ages after long-term use, resulting in poor sludge removal effect in the drainage pipe, the threaded shaft is rotated to connect with the clamping block, further disengaging the clamping block from the spiral blade, and the aged and damaged spiral blade can be removed from the right end of the connecting sleeve for replacement. The operation is simple and convenient. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 This is a schematic diagram of the overall structure of a farmland drainage pipe with automatic dredging function according to the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of a farmland drainage pipe with automatic dredging function according to the present invention.

[0016] Figure 3 This is a cross-sectional structural diagram of a farmland drainage pipe connecting sleeve with automatic silt removal function according to the present invention.

[0017] In the diagram: 1. Drain pipe; 2. Fixing sleeve; 3. Fixing shaft; 4. Guide shaft; 5. Sprocket; 6. Chain; 7. Positioning block one; 8. Protective sleeve; 9. Connecting sleeve; 10. Helical blade; 11. Positioning block two; 12. Bracket; 13. Motor; 14. Large gear; 15. Small gear; 16. Reciprocating lead screw; 17. Slider; 18. Limiting block; 19. Threaded shaft; 20. Locking block. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1

[0020] like Figure 1-3As shown, a farmland drainage pipe with automatic dredging function includes a drainage pipe 1. A fixing sleeve 2 is provided inside the drainage pipe 1. A fixing shaft 3, penetrating the fixing sleeve 2, is rotatably connected to the bottom inner end of the fixing sleeve 2. A guide shaft 4, penetrating the fixing sleeve 2, is provided at the top inner end of the fixing sleeve 2. Sprockets 5 are provided on the outer sides of both the guide shaft 4 and the fixing shaft 3. The bottom sprocket 5 is fixedly connected to the fixing shaft 3, and the top sprocket 5 is slidably connected to the guide shaft 4. A chain 6 is meshed with the outer side of the sprocket 5. A connecting sleeve 9 is fixedly connected to the right end of the fixing shaft 3. The inner right end of the connecting sleeve 9 is provided with a spiral blade 10. The left end of the guide shaft 4 is rotatably connected to a positioning block 11 that is fixedly connected to the drain pipe 1. The right end of the outer side of the guide shaft 4 is rotatably connected to a bracket 12 that is fixedly connected to the drain pipe 1. The right end of the bracket 12 is fixedly connected to a motor 13, and the main shaft of the motor 13 passes through the bracket 12. The main shaft of the motor 13 is rotatably connected to the bracket 12 and the drain pipe 1. A large gear 14 is fixedly connected to the outer side of the main shaft of the motor 13. A small gear 15 that is fixedly connected to the guide shaft 4 is meshed with the outer side of the large gear 14.

[0021] Example 2

[0022] like Figure 3 As shown, in order to solve the problem that it is inconvenient to allow the top sprocket 5 to slide to the right and left outside the guide shaft 4 without affecting the rotation of the guide shaft 4, a positioning block 7 is fixedly connected to the inner side of the top sprocket 5, and the positioning block 7 is slidably connected to the guide shaft 4. By allowing the top sprocket 5 to slide to the outside of the guide shaft 4, and then fixing and limiting the positioning block 7 that slides to the inside of the guide shaft 4 inside the top sprocket 5, it is convenient to allow the top sprocket 5 to slide to the right and left outside the guide shaft 4 without affecting the rotation of the guide shaft 4 when the motor 13 is started.

[0023] Example 3

[0024] like Figure 2-3 As shown, in order to solve the problem of large friction between the fixed sleeve 2 and the guide shaft 4 when the fixed sleeve 2 slides to the right and left, protective sleeves 8 are fixedly connected to the left and right sides of the top of the fixed sleeve 2, and the protective sleeves 8 are slidably connected to the guide shaft 4. The protective sleeves 8 are made of smooth ceramic material. By making the guide shaft 4 contact the fixed sleeve 2 through the smooth ceramic material protective sleeve 8, large friction between the fixed sleeve 2 and the guide shaft 4 when the fixed sleeve 2 slides to the right and left can be avoided.

[0025] Example 4

[0026] like Figure 2As shown, in order to solve the problem of not being able to control the right-left reciprocating motion of the rotating helical blade 10 while controlling its rotation, a reciprocating lead screw 16 that is rotatably connected to the drain pipe 1 is fixedly connected to the end of the main shaft of the motor 13. A slider 17 that is slidably connected to the drain pipe 1 is slidably connected to the outside of the reciprocating lead screw 16. A limiting block 18 that is slidably connected to the inside of the slider 17 is rotatably connected to the reciprocating lead screw 16. The slider 17 is fixedly connected to the fixed sleeve 2. During the rotation of the helical blade 10, the motor 13 simultaneously drives the reciprocating lead screw 16 to rotate, and further controls the right-left reciprocating motion of the slider 17 under the limiting block 18. This facilitates the right-left reciprocating motion of the helical blade 10 at the lower right of the fixed sleeve 2 by the slider 17.

[0027] Example 5

[0028] like Figure 2-3 As shown, in order to solve the problem of inconvenience in replacing the spiral blade 10 when it is aged and damaged, a threaded shaft 19 is rotatably connected to the outside of the connecting sleeve 9. A locking block 20 that is slidably connected to the connecting sleeve 9 is screwed to the outside of the threaded shaft 19. The locking block 20 is rectangular and is engaged with the spiral blade 10. By rotating the threaded shaft 19 and the locking block 20, the locking block 20 can be disengaged from the spiral blade 10, making it easier to remove the aged and damaged spiral blade 10 from the right end of the connecting sleeve 9 for replacement.

[0029] In this embodiment, during the process of draining farmland through the device, the external power supply of the motor 13 is simultaneously connected. At this time, the motor 13 drives the large gear 14 to mesh with the small gear 15. The small gear 15 drives the top sprocket 5 to mesh with the chain 6 through the positioning block 7 outside the guide shaft 4. Then the chain 6 meshes with the bottom sprocket 5 to rotate, further driving the spiral blade 10 to rotate through the fixed shaft 3 and the connecting sleeve 9. During the process of controlling the rotation of the spiral blade 10, because the motor 13 also drives the reciprocating screw 16 to rotate, under the limitation of the limiting block 18, the slider 17 will also drive the spiral blade 10 on the lower right of the fixed sleeve 2 to perform right-left reciprocating motion. During this process, the positioning block 17... 7 will continuously slide with the guide shaft 4. At this time, by continuously controlling the rotating spiral blade 10 to reciprocate to the right and left during the drainage of farmland, the rotating spiral blade 10 continuously transports the silt deposited at the bottom of the drainage pipe 1, which can automatically clean the deposited silt during the drainage process. During the use of the device, when the spiral blade 10 rusts and ages after long-term use, resulting in a poor silt cleaning effect in the drainage pipe 1, the screw connection between the threaded shaft 19 and the locking block 20 is rotated to further disengage the locking block 20 from the spiral blade 10. The aged and damaged spiral blade 10 can be removed from the right end of the connecting sleeve 9 for replacement. The operation is simple and convenient.

[0030] The above are preferred embodiments of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope thereof. All such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A farmland drainage pipe with automatic dredging function, comprising a drainage pipe (1), characterized in that: The drain pipe (1) is provided with a fixed sleeve (2) inside. The bottom of the inner side of the fixed sleeve (2) is rotatably connected to a fixed shaft (3) that passes through the fixed sleeve (2). The top of the inner side of the fixed sleeve (2) is provided with a guide shaft (4) that passes through the fixed sleeve (2). Both the outer side of the guide shaft (4) and the outer side of the fixed shaft (3) are provided with sprockets (5). The bottom sprocket (5) is fixedly connected to the fixed shaft (3), and the top sprocket (5) is slidably connected to the guide shaft (4). A chain (6) is meshed with the outer side of the sprocket (5). A connecting sleeve (9) is fixedly connected to the right end of the fixed shaft (3). The right end of the inner side of the connecting sleeve (9) is provided with a spiral. The blade (10) has a positioning block (11) that is fixedly connected to the drain pipe (1) at the left end of the guide shaft (4). The bracket (12) that is fixedly connected to the drain pipe (1) is rotatably connected to the right end of the guide shaft (4). The motor (13) is fixedly connected to the right end of the bracket (12), and the main shaft of the motor (13) passes through the bracket (12). The main shaft of the motor (13) is rotatably connected to the bracket (12) and the drain pipe (1). A large gear (14) is fixedly connected to the outside of the main shaft of the motor (13). A small gear (15) that is fixedly connected to the guide shaft (4) is meshed with the outside of the large gear (14).

2. The farmland drainage pipe with automatic silt removal function according to claim 1, characterized in that: The top sprocket (5) is fixedly connected to a positioning block (7) on its inner side, and the positioning block (7) is slidably connected to the guide shaft (4).

3. The farmland drainage pipe with automatic dredging function according to claim 1, characterized in that: The top left and right sides of the fixed sleeve (2) are fixedly connected to the protective sleeve (8), and the protective sleeve (8) is slidably connected to the guide shaft (4). The protective sleeve (8) is made of smooth ceramic material.

4. A farmland drainage pipe with automatic dredging function according to claim 1, characterized in that: The motor (13) has a reciprocating screw (16) fixedly connected to the end of its main shaft and rotatably connected to the drain pipe (1). The reciprocating screw (16) has a slider (17) slidably connected to the drain pipe (1) on its outer side. The slider (17) has a limiting block (18) rotatably connected to the reciprocating screw (16) on its inner side. The slider (17) is fixedly connected to the fixed sleeve (2).

5. A farmland drainage pipe with automatic silt removal function according to claim 1, characterized in that: The connecting sleeve (9) is rotatably connected to a threaded shaft (19), and the threaded shaft (19) is helically connected to a locking block (20) that is slidably connected to the connecting sleeve (9). The locking block (20) is set in a cuboid shape and is engaged with the spiral blade (10).