A ditch-opening device for water conservancy ditches
By designing a trenching device with hydraulic rods and universal joints, the inconvenience caused by the fixed disc trenching device was solved, enabling the vehicle to move without disassembly, thus improving convenience and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG CITY WATER ENG GENERAL
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
AI Technical Summary
The existing disc-type trenching device is fixedly installed on the side of the vehicle, which makes the digging depth unadjustable. It also needs to be disassembled for transport, making it inconvenient to use.
A trenching device was designed, comprising a base, bearing housing, motor, universal joint, hydraulic rod, and turntable. The hydraulic rod drives the turntable to rotate, the universal joint adjusts its length automatically, and the connecting rod and extension rod provide distance compensation, enabling the device to move without disassembly.
This allows the vehicle to move smoothly without disassembling the trenching device, improving ease of use and flexibility, and reducing hassles during transportation.
Smart Images

Figure CN224451755U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the technical field of water conservancy ditches, and specifically to a water conservancy ditch opening device. Background Technology
[0002] Irrigation ditches are important infrastructure for agricultural irrigation, drainage and flood control, and water resource allocation. In the water conservancy system, they play a key role in connecting water sources with fields and regulating regional water volume. They mainly have the functions of irrigation water supply, drainage and flood control, water resource allocation and ecological regulation. Irrigation ditches are the link between "large-scale water conservancy" and "small farmland". Their design needs to take into account hydraulic efficiency, terrain adaptability and economic cost. In the process of constructing irrigation ditches, it is usually necessary to use irrigation ditch opening devices.
[0003] Currently used disc-type trenching devices are typically fixedly installed on the side of the vehicle. Therefore, the location of the trenching device is fixed. Since the bottom of the trenching device needs to extend below the ground, it is usually necessary to disassemble the trenching device during transportation to ensure that the vehicle can move smoothly. This causes inconvenience during use. Utility Model Content
[0004] The purpose of this utility model is to provide a ditching device for water conservancy canals, in order to solve the problem mentioned in the background art that the currently used disc-type ditching devices are usually fixedly installed on the side of the vehicle. Therefore, the position of the ditching device is fixed and the digging depth is not adjustable. Since the bottom of the ditching device needs to go deep into the ground, it is usually necessary to disassemble the ditching device during transportation to ensure that the vehicle can move smoothly. Therefore, there are inconveniences in the use of the device.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A ditch-opening device for water conservancy includes a base and a turntable. A bearing seat is installed on the top of the base, and a motor is installed at one end of the bearing seat. The output shaft of the motor is connected to a universal joint for transmission.
[0007] As a further embodiment of this utility model: the turntable is installed at one end of the shaft disk, and the turntable is connected to one end of the universal joint for transmission; two connecting rods are symmetrically distributed at the bottom of the base, and an extension rod is installed at the end of each connecting rod; the ends of the two extension rods are respectively connected to two adapters, and the two adapters are symmetrically distributed at both ends of the bottom of the shaft disk.
[0008] As a further embodiment of this utility model: a mounting frame is installed on the top of the base, and two hydraulic rods are symmetrically distributed on the mounting frame, with the ends of the two hydraulic rods respectively connected to the top two ends of the shaft disc.
[0009] As a further embodiment of this utility model: the connection between the base and the connecting rod is a rotatable connection, and the connection between the connecting rod and the extension rod is a rotatable connection; the connection between the extension rod and the adapter is a rotatable connection, and the connection between the adapter and the shaft disc is a ball-and-shaft connection.
[0010] As a further embodiment of this utility model: the hydraulic rod is connected to the base by a rotatable connection, and the hydraulic rod is also connected to the shaft disc by a rotatable connection. At the same time, the hydraulic rod, the shaft disc, and the turntable form a rotating structure.
[0011] As a further embodiment of this utility model: two fixing rods are symmetrically distributed on the top of the shaft disk, and both fixing rods are fixedly connected to the protective frame. At the same time, several baffles are evenly distributed on the protective frame.
[0012] As a further embodiment of this utility model: two sets of shovels are installed on both sides of the turntable, and each set of shovels has several shovels distributed at equal angles about the axis of the turntable, while the two sets of shovels are distributed in an alternating manner.
[0013] As a further embodiment of this utility model: the protective frame has an arc structure, and the center line of the protective frame and the center line of the turntable are on the same straight line.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This utility model is equipped with a shaft disc and a hydraulic rod. By pulling the shaft disc with the hydraulic rod, the shaft disc and the turntable can be flipped up synchronously, so that the bottom of the turntable can be temporarily lifted off the ground, ensuring that the vehicle can move smoothly without disassembling the device.
[0016] This utility model is equipped with a universal joint, which consists of two parts connected by a spline, ensuring that the universal joint can adjust its own length while maintaining transmission during the adjustment of the position of the shaft disc and the turntable.
[0017] This utility model includes a connecting rod, an extension rod, and an adapter. The connecting rod and extension rod together provide support for the bottom of the shaft disk. During the adjustment of the shaft disk, the extension and folding of the connecting rod and extension rod can automatically provide distance compensation. At the same time, the adapter is connected to the shaft disk through a ball joint, which can further improve the flexibility of the shaft disk during the adjustment process. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0019] Figure 2 This is a utility model Figure 1 Another perspective view.
[0020] Figure 3 This is a utility model Figure 2 Another perspective view.
[0021] Figure 4 This is a utility model Figure 3 Another perspective view.
[0022] Figure 5 This is a utility model Figure 3 Enlarged view of point A in the image.
[0023] In the diagram: 1-base, 2-motor, 3-bearing seat, 4-mounting bracket, 5-universal shaft, 6-hydraulic rod, 7-shaft disc, 8-connecting rod, 9-extension rod, 10-adapter, 11-turntable, 12-fixing rod, 13-protective frame, 14-baffle, 15-shovel plate. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-5 In this embodiment of the utility model, a ditch-opening device for water conservancy includes a base 1 and a turntable 11. A bearing seat 3 is installed on the top of the base 1, and a motor 2 is installed at one end of the bearing seat 3. The output shaft of the motor 2 is connected to a universal joint 5. The turntable 11 is installed at one end of a shaft disk 7, and the turntable 11 is connected to one end of the universal joint 5. Two connecting rods 8 are symmetrically distributed at the bottom of the base 1, and an extension rod 9 is installed at the end of each connecting rod 8. The ends of the two extension rods 9 are respectively connected to two adapters 10, and the two adapters 10 are symmetrically distributed at both ends of the bottom of the shaft disk 7. A mounting frame 4 is installed on the top of the base 1, and two hydraulic rods 6 are symmetrically distributed on the mounting frame 4. The ends of the two hydraulic rods 6 are respectively connected to both ends of the top of the shaft disk 7.
[0026] More specifically, the device has a compact overall structure and can be fixedly installed on a designated carrier using the base 1 and bolts, which improves the convenience of overall assembly and disassembly.
[0027] As a further explanation of this embodiment, the connection between the turntable 11 and the shaft disk 7 is a rotatable connection, and the size of the turntable 11 can be replaced individually as needed.
[0028] In this embodiment, the base 1 is rotatably connected to the connecting rod 8, and the connecting rod 8 is rotatably connected to the extension rod 9; the extension rod 9 is rotatably connected to the adapter 10, and the adapter 10 is rotatably connected to the shaft disc 7 via a ball joint connection.
[0029] More specifically, when the turntable 11 is in a vertical position, the connecting rod 8 and the extension rod 9 are folded together. During the upward flipping of the turntable 11, distance compensation can be automatically provided through the extension between the connecting rod 8 and the extension rod 9.
[0030] As a further explanation of this embodiment, the ball joint connection improves the flexibility of the axle disk 7 during movement.
[0031] In this embodiment, the hydraulic rod 6 is rotatably connected to the base 1, and the hydraulic rod 6 is also rotatably connected to the shaft disk 7. The hydraulic rod 6, shaft disk 7, and turntable 11 together form a rotating structure.
[0032] More specifically, the hydraulic rod 6 drives the shaft disc 7 to move.
[0033] As a further explanation of this embodiment, the shaft disk 7 rotates while simultaneously driving the turntable 11 to rotate synchronously.
[0034] In this embodiment, two fixing rods 12 are symmetrically distributed on the top of the shaft disk 7, and both fixing rods 12 are fixedly connected to the protective frame 13. At the same time, a number of baffles 14 are evenly distributed on the protective frame 13.
[0035] More specifically, the end of the protective frame 13 is equipped with an arc-shaped metal plate, which can push the excavated soil to both sides during the trenching operation, thereby improving the trenching effect.
[0036] As a further explanation of this embodiment, the baffle 14 and the protective frame 13 are connected by welding.
[0037] In this embodiment, two sets of shovel plates 15 are installed on both sides of the turntable 11, and each set of shovel plates 15 is provided with several of them at equal angles about the axis of the turntable 11, while the two sets of shovel plates 15 are arranged in an alternating manner.
[0038] More specifically, the shovel plate 15 and the turntable 11 are connected by bolts, which makes it easy to replace the corresponding shovel plate 15 individually according to the degree of wear.
[0039] As a further explanation of this embodiment, the shape of the shovel plate 15 can be adjusted according to requirements.
[0040] In this embodiment, the protective frame 13 has an arc structure, and the axis of the protective frame 13 is on the same straight line as the axis of the turntable 11.
[0041] More specifically, the protective frame 13 can rotate synchronously with the shaft disk 7.
[0042] As a further explanation of this embodiment, the protective frame 13, in conjunction with the baffle 14, can provide a protective effect for movement.
[0043] As a further illustration of the above embodiments, the trenching device can be used in conjunction with a tractor or other equipment capable of carrying the device.
[0044] It should be noted that motor 2 is selected with appropriate power based on the actual usage scenario, or it can be used directly with the maximum power. The estimation methods for motor torque and power are as follows:
[0045] =
[0046] (Note: 1 horsepower = 735 watts, η is usually 0.7-0.9);
[0047] Cutting force (F cutting force): F = K × B × H, where K is the soil specific resistance (kN / m 2 (Refer to the table above), B is the trench width (m) and H is the trench depth (m).
[0048] Shaft linear velocity (υ): The edge linear velocity of the shaft is usually 10-20 m / s.
[0049] For reference on the applicable scenarios of motor power:
[0050] Table 1
[0051]
[0052] Note: Torque = Power (watts) × 9550 ÷ Speed (r / min). Motor speed is usually 1000-3000 r / min. Low-speed motors (such as 1000 r / min) have greater torque and are suitable for hard surfaces.
[0053] When selecting a motor, it is recommended to reserve a 20% power margin to cope with uneven soil or sudden resistance (such as stones), and to give priority to high-torque, low-speed motors.
[0054] The working principle of this utility model is as follows: When in use, the external power supply is connected, the motor 2 is started, and the universal shaft 5 is driven to rotate through the output shaft, which in turn drives the turntable 11 to rotate. The rotating turntable 11 drives the shovel plate 15 to quickly dig the soil it comes into contact with. Then, the entire device is moved in a straight line by the vehicle, so that a straight trench can be opened on the ground.
[0055] When the device needs to be transferred after use, both hydraulic rods 6 are activated simultaneously to pull the axle disc 7 to start flipping upwards. During the flipping process of the axle disc 7, the universal shaft 5 retracts to adjust its own length. At the same time, the connecting rod 8 rotates upwards with the axle disc 7, and the extension rod 9 extends outwards to provide distance compensation. Then the turntable 11 flips upwards synchronously with the axle disc 7 until the bottom of the turntable 11 is lifted off the ground.
[0056] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0057] 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 watercourse trenching device, characterised in that: Includes a base (1) and a turntable (11). The top of the base (1) is equipped with a bearing seat (3), and a motor (2) is installed at one end of the bearing seat (3). At the same time, the output shaft of the motor (2) is connected to the universal joint (5) for transmission. The turntable (11) is installed at one end of the shaft disk (7), and the turntable (11) is connected to one end of the universal shaft (5) in a transmission connection; the bottom of the base (1) is symmetrically distributed with two connecting rods (8), and each connecting rod (8) is equipped with an extension rod (9) at its end; the ends of the two extension rods (9) are respectively connected to two adapters (10), and the two adapters (10) are symmetrically distributed at both ends of the bottom of the shaft disk (7); The base (1) is equipped with a mounting bracket (4) on its top, and two hydraulic rods (6) are symmetrically distributed on the mounting bracket (4). The ends of the two hydraulic rods (6) are respectively connected to the top two ends of the shaft disc (7).
2. A watercourse trenching device according to claim 1, wherein: The base (1) and the connecting rod (8) are connected by a rotatable connection, and the connecting rod (8) and the extension rod (9) are connected by a rotatable connection; the extension rod (9) and the adapter (10) are connected by a rotatable connection, and the adapter (10) and the shaft disc (7) are connected by a ball shaft connection.
3. A watercourse trenching device according to claim 1, wherein: The hydraulic rod (6) is connected to the base (1) by a rotatable connection, and the hydraulic rod (6) is connected to the shaft disk (7) by a rotatable connection. At the same time, the hydraulic rod (6), the shaft disk (7) and the turntable (11) form a rotating structure.
4. A watercourse trenching device according to claim 1, wherein: The top of the shaft disk (7) is symmetrically distributed with two fixed rods (12), and both fixed rods (12) are fixedly connected to the protective frame (13). At the same time, the protective frame (13) is provided with several baffles (14) at equal intervals.
5. A watercourse trenching device according to claim 1, wherein: Two sets of shovel plates (15) are installed on both sides of the turntable (11), and each set of shovel plates (15) is arranged at equal angles about the axis of the turntable (11), while the two sets of shovel plates (15) are arranged in an alternating manner.
6. A watercourse trenching device according to claim 4, wherein: The protective frame (13) has an arc structure, and the axis of the protective frame (13) and the axis of the turntable (11) are on the same straight line.