A farmland drainage ditch support structure
By introducing concrete channels and blade systems into farmland drainage ditches, and using a waterproof motor to drive the transmission shaft to rotate and adjust the blade state, the problems of suspended solids interception and drainage efficiency are solved, achieving the effects of suspended solids interception and rapid drainage.
Patent Information
- Application Number
- CN202521304129.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-24
AI Technical Summary
The existing farmland drainage ditch support structure has a single function, cannot effectively intercept suspended matter in the water, and has insufficient drainage efficiency during heavy rain.
The drainage system consists of components such as concrete trenches, metal clamping frames, waterproof motors, drive shafts, active blades, and driven blades. The waterproof motor drives the drive shaft to rotate, and the blade states are adjusted to achieve the interception of suspended matter and rapid drainage.
It effectively intercepts and coarsely filters suspended matter in drainage ditches, improving drainage efficiency, especially enabling rapid drainage during heavy rain.
Smart Images

Figure CN224678641U_ABST
Abstract
Description
Technical Field
[0001] This utility model is a support structure for farmland drainage ditches, belonging to the technical field of agricultural water conservancy engineering equipment. Background Technology
[0002] In agricultural water conservancy projects, farmland drainage ditches are key facilities for draining waterlogged farmland and preventing waterlogging. With the development of modern large-scale agriculture, higher requirements are placed on the stability, durability, and construction efficiency of drainage ditches.
[0003] Chinese patent CN222206251U proposes a support structure for farmland drainage ditches. This structure involves placing side panels on the inner wall of the ditch, then supporting a support mechanism between two opposing side panels. The length of a telescopic rod is adjusted so that a bottom panel is positioned at the bottom of the side panels. The extension of the support mechanism, driven by the telescopic rod, causes the bottom panel to extend and press against the bottom of the side panels, thus supporting the upper half of the side panels. The bottom panel supports the bottom of the side panels. However, this device is too simple in structure and has a limited function, failing to intercept suspended solids in the drainage ditch during normal use. There is an urgent need for a farmland drainage ditch support structure to address these problems. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a support structure for farmland drainage ditches to solve the problems mentioned in the background technology. When used in farmland drainage ditches, this utility model can intercept suspended matter in the water in the drainage ditch to achieve a coarse filtration effect. It can be adjusted during heavy rain to accelerate the drainage effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a farmland drainage ditch support structure, comprising a concrete ditch and a metal clamping frame. The concrete ditch has a metal clamping frame longitudinally clamped into its inner wall. Welding plates are welded to the front, rear, left, and right sides of the metal clamping frame. A waterproof motor is installed on the upper left side of the metal clamping frame. A drive shaft is longitudinally installed inside the left end of the metal clamping frame via a bearing. An active blade is sleeved on the outside of the drive shaft. An active gear is horizontally installed on the upper outside of the drive shaft. Multiple waterproof bearings are embedded in the upper and lower ends of the metal clamping frame. Driven shafts are longitudinally installed between the multiple waterproof bearings. Driven blades are installed on the outside of the multiple driven shafts. Multiple drainage holes are opened through the left and right sides of the front ends of the multiple driven blades and the active blades. Driven gears are installed on the upper outside of the multiple driven shafts. The active gear meshes with the leftmost driven gear, and multiple adjacent driven gears mesh with each other.
[0006] Furthermore, a thick crushed stone cushion layer is laid at the lower end of the concrete ditch, and the concrete ditch and the thick crushed stone cushion layer are pre-embedded in the farmland drainage ditch.
[0007] Furthermore, each of the welding plates has a hand-tightening screw inserted into its inner side via a thread, and the threaded ends of the hand-tightening screws are respectively inserted into the left and right ends of the concrete ditch.
[0008] Furthermore, the waterproof motor is connected to an external battery and PLC controller via wires.
[0009] Furthermore, the waterproof motor is coaxially connected to the drive shaft.
[0010] Furthermore, the active blade slides into contact with the leftmost driven blade, and all other adjacent driven blades slide into contact with each other.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a farmland drainage ditch support structure. Because it incorporates a concrete ditch, a metal snap-fit frame, a welded plate, a hand-tightening screw, a waterproof motor, a drive shaft, a drive gear, a drive blade, a drainage hole, a driven gear, a waterproof bearing, a driven shaft, and a driven blade, the structure is reasonable. When used in farmland drainage ditches, it can intercept suspended solids in the water, achieving a coarse filtration effect. During heavy rain, it can be adjusted to accelerate the drainage effect, making it highly practical. Attached Figure Description
[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0013] Figure 1 This is a schematic diagram of the support structure for farmland drainage ditches according to the present invention;
[0014] Figure 2 This is a schematic diagram of the active gear connection structure of a farmland drainage ditch support structure according to the present invention;
[0015] Figure 3 This is a schematic diagram of the driven blade structure of a farmland drainage ditch support structure according to the present invention.
[0016] In the diagram: 1-Concrete ditch, 2-Metal clip frame, 3-Welded plate, 4-Hand-tightening screw, 5-Waterproof motor, 6-Drive shaft, 7-Drive gear, 8-Drive blade, 9-Drainage hole, 10-Driven gear, 11-Waterproof bearing, 12-Driven shaft, 13-Driven blade. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0018] Please see Figures 1-3 This utility model provides a technical solution: a farmland drainage ditch support structure, including a concrete ditch 1 and a metal clamping frame 2. The metal clamping frame 2 is longitudinally clamped on the inner wall of the concrete ditch 1. Welding plates 3 are welded to the front, rear, left, and right sides of the metal clamping frame 2. A waterproof motor 5 is installed on the upper left side of the metal clamping frame 2. A drive shaft 6 is longitudinally installed on the left side of the inside of the metal clamping frame 2 through a bearing. An active blade 8 is sleeved on the outside of the drive shaft 6. An active gear 7 is horizontally installed on the upper outside of the drive shaft 6. Multiple waterproof bearings 11 are embedded in the upper and lower ends of the inside of the metal clamping frame 2. Multiple waterproof bearings 11 are longitudinally mounted with driven shafts 12, and driven blades 13 are mounted on the outside of the multiple driven shafts 12. Multiple drainage holes 9 are opened through the front left and right sides of the multiple driven blades 13 and the driving blades 8. Driven gears 10 are mounted on the upper outside of the multiple driven shafts 12. The driving gear 7 meshes with the leftmost driven gear 10 for transmission. Multiple adjacent driven gears 10 mesh with each other one by one for transmission. This design solves the problem that the original device structure is too simple and has a single function, and cannot intercept suspended matter in the water in the drainage ditch during normal use.
[0019] In the first embodiment of this utility model: a thick crushed stone bedding layer is laid at the lower end of the concrete ditch 1, and the concrete ditch 1 and the thick crushed stone bedding layer are pre-embedded in the farmland drainage ditch. The added concrete ditch 1 is made of C35 type concrete. Multiple welded plates 3 have threaded hand-tightening screws 4 inserted into their inner sides. The threaded ends of the multiple hand-tightening screws 4 are respectively inserted into the left and right ends of the concrete ditch 1. By adding multiple hand-tightening screws 4, the threaded ends of the multiple hand-tightening screws 4 are respectively inserted into the left and right ends of the concrete ditch 1, the metal clip frame 2 and the concrete ditch 1 can be fixed. The waterproof motor 5 is connected to an external battery and PLC controller via wires. The added waterproof motor 5, external battery, and PLC controller are all existing mature equipment, and their control principles will not be elaborated. The waterproof motor 5 is coaxially connected to the drive shaft 6. By adding the waterproof motor 5 and the drive shaft 6 coaxially connected, the waterproof motor 5 can drive the drive shaft 6 to rotate. The active blade 8 slides into contact with the leftmost driven blade 13, and all other adjacent driven blades 13 slide into contact with each other. When the added active blade 8 slides into contact with the leftmost driven blade 13, and all other adjacent driven blades 13 slide into contact with each other, the active blade 8 and multiple driven blades 13 are in an unfolded state, which can then coarsely intercept the farmland drainage flowing in the concrete ditch 1.
[0020] As a second embodiment of this utility model: In actual use, a thick crushed stone cushion layer is laid at the lower end of the concrete ditch 1, and the concrete ditch 1 and the thick crushed stone cushion layer are pre-embedded in the farmland drainage ditch. The active blade 8 slides and contacts the leftmost driven blade 13, and the other adjacent driven blades 13 also slide and contact each other. This can intercept and filter coarse impurities in the farmland water flowing in the concrete ditch 1. The coarsely filtered farmland water can then continue to flow through multiple drainage holes 9. When there is a large amount of water in the concrete ditch 1 during a heavy rain, the waterproof motor 5 is controlled by an external PLC controller to drive the end of the motor. When the drive shaft 6 and the drive gear 7 rotate 90°, the drive blade 8 is driven to be in a longitudinal position. At the same time, the drive gear 7 drives the adjacent driven gear 10 to rotate 90°. The driven gear 10 will then drive the driven gear 10 on the right to rotate 90° clockwise or counterclockwise. This will cause the remaining driven shaft 12 to drive the remaining driven blades 13 to rotate 90° as well. When all the driven blades 13 are in a longitudinal position, the drive blade 8 and each driven blade 13 will no longer be in contact, leaving a rectangular opening so that water in the concrete ditch 1 can be drained quickly.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A farmland drainage ditch support structure, comprising a concrete ditch (1) and a metal snap-fit frame (2), characterized in that: The concrete ditch (1) is longitudinally fitted with a metal clamping frame (2) on its inner wall. Welding plates (3) are welded to the front and rear ends and left and right sides of the metal clamping frame (2). A waterproof motor (5) is installed on the upper left side of the metal clamping frame (2). A drive shaft (6) is longitudinally installed on the left side of the inside of the metal clamping frame (2) through a bearing. An active blade (8) is sleeved on the outside of the drive shaft (6). An active gear (7) is horizontally installed on the upper side of the drive shaft (6). Multiple waterproof bearings are embedded in the upper and lower ends of the inside of the metal clamping frame (2). (11) A driven shaft (12) is longitudinally installed between multiple waterproof bearings (11). A driven blade (13) is installed on the outside of multiple driven shafts (12). Multiple drainage holes (9) are opened through the front left and right sides of multiple driven blades (13) and driving blades (8). A driven gear (10) is installed on the upper outside of multiple driven shafts (12). The driving gear (7) meshes with the leftmost driven gear (10) for transmission. Multiple adjacent driven gears (10) mesh with each other for transmission.
2. The farmland drainage ditch support structure according to claim 1, characterized in that: The lower end of the concrete ditch (1) is covered with a thick crushed stone cushion layer, and the concrete ditch (1) and the thick crushed stone cushion layer are pre-buried in the farmland drainage ditch.
3. The farmland drainage ditch support structure according to claim 1, characterized in that: Each of the welding plates (3) has a hand screw (4) inserted into its inner side by thread, and the threaded ends of the hand screw (4) are respectively inserted into the left and right ends of the concrete ditch (1).
4. The farmland drainage ditch support structure according to claim 1, characterized in that: The waterproof motor (5) is connected to an external battery and PLC controller via wires.
5. The farmland drainage ditch support structure according to claim 1, characterized in that: The waterproof motor (5) is coaxially connected to the drive shaft (6).
6. The farmland drainage ditch support structure according to claim 1, characterized in that: The active blade (8) slides into contact with the leftmost driven blade (13), and all other adjacent driven blades (13) slide into contact with each other.
Citation Information
Patent Citations
Farmland drainage ditch supporting structure
CN222206251U