A farmland channel dredging device

Abstract

The present invention relates to the technical field of ditch desilting, and in particular to a farmland channel desilting device. It comprises: a connecting flange, a cleaning structure; the connecting flange is arranged on the side of the cleaning structure away from the ground; the connecting flange is connected to the cleaning structure; the cleaning structure comprises a power motor and a cleaning plate; the number of cleaning plates is multiple; the cleaning plates are arranged in a ring shape; the power motor is connected to the cleaning plate in a transmission manner to drive the cleaning plate to circulate. In the prior art, although the silt at the bottom of the canal can be effectively cleaned, it is subject to its own structural limitations, resulting in a relatively low efficiency in cleaning the silt. Compared with the prior art, the present invention utilizes a cleaning plate to push the silt out from the bottom of the canal, and at the same time, utilizes a power motor to drive the cleaning plate to continuously circulate, thereby continuously cleaning the bottom of the canal. Thus, the cleaning efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ditch desilting, and in particular to a farmland channel desilting device. Background Art

[0002] Farmland irrigation methods can generally be categorized as traditional surface irrigation, conventional sprinkler irrigation, and micro-irrigation. Traditional surface irrigation includes border irrigation, furrow irrigation, flooding, and overtopping. Furrow irrigation is the primary method used for wide-row cultivation of row crops. Furrow irrigation involves pre-drilling a channel through the farmland, diverting river water into the channel, and then using the water to irrigate the farmland. However, in practice, river water has a complex composition, often containing debris such as silt, branches, and leaves. Once this debris enters the channel, it gradually settles at the bottom. Over time, this debris transforms into silt, clogging the channel.

[0003] A Chinese patent discloses a device for removing silt from irrigation ditches using farmland water [Application Number: CN201810693238.5, Publication Number: CN108867738B]. The device comprises a body, first wheels, a mounting frame, a motor, a first screw, a first nut, a first bearing seat, a second screw, a second nut, and a first gear. The first wheels are located on both sides of the bottom of the body, a first through-hole is formed on the left side of the body, and a mounting frame is located on the left side of the top of the body. The device allows the user to activate the motor clockwise, driving the blade to contact the bottom of the ditch and then pushing the device to remove the silt. The user also activates the motor counterclockwise, pushing the device to cause the blade to scoop up the silt. A lever then acts to dump the silt into a storage tank. Although the technical solution of this patent can effectively clean the silt at the bottom of the channel, it is restricted by its own structure. A single action of the shovel can only clean a small part of the silt, and the shovel needs to go through a cycle of action before it can proceed to the next cleaning. As a result, the technical solution of this patent has a relatively low efficiency in cleaning the silt. Summary of the Invention

[0004] In response to the technical problems of the prior art, the present invention provides a farmland channel dredging device

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A farmland channel dredging device includes: a connecting flange and a cleaning structure; the connecting flange is arranged on a side of the cleaning structure away from the ground; the connecting flange is connected to the cleaning structure; the cleaning structure includes a power motor and a cleaning plate; there are multiple cleaning plates; the cleaning plates are arranged in a ring shape; the power motor is connected to the cleaning plates in a transmission manner to drive the cleaning plates to circulate.

[0007] During actual operation, the present invention is installed on the mechanical arm of the excavator through the connecting flange to carry the bucket of the excavator. Before cleaning the bottom of the channel, the water flow is appropriately blocked to lower the liquid level in the channel and slow down the water flow rate in the channel. At this time, the device is placed in the channel through the mechanical arm of the excavator so that the cleaning plate can contact the silt at the bottom of the channel. Start the power motor, and under the drive of the power motor, the cleaning plate will begin to circulate, thereby continuously pushing the silt at the bottom of the channel to one side of the channel. Finally, the silt at the bottom of the channel is pushed out of the channel. Therefore, under the continuous rotation of the cleaning plate, the present invention can continuously clean the silt at the bottom of the channel, thereby effectively improving the efficiency of cleaning the silt.

[0008] Furthermore, it also includes a mounting plate; the mounting plate is arranged on the side of the cleaning structure away from the ground; the mounting plate is connected to the cleaning structure; the connecting flange is fixedly arranged on the side of the mounting plate away from the cleaning structure; and the power motor is fixedly arranged on the mounting plate.

[0009] Furthermore, the cleaning structure also includes a chain and a chain plate; the chain is in a closed ring shape; the chain is connected to the power motor; there are multiple chain plates; the chain plates are evenly arranged on the chain; the chain plates correspond to the cleaning plates one by one; and the chain plates are connected to the cleaning plates.

[0010] Furthermore, the cleaning structure also includes a transmission rod and a connecting rod; the transmission rod is rotatably connected to the chain plate; one end of the connecting rod is rotatably connected to the transmission rod; and the other end of the connecting rod is rotatably connected to the cleaning plate.

[0011] Furthermore, a limit block is provided on the connecting rod; the limit block is provided at one end where the connecting rod is connected to the transmission rod; when the limit block conflicts with the transmission rod, the angle α between the connecting rod and the transmission rod is an acute angle.

[0012] Furthermore, a receiving groove is provided on the connecting rod; the receiving groove corresponds to the transmission rod; and the transmission rod can be embedded in the receiving groove.

[0013] Furthermore, a positioning block is provided on the cleaning plate; the positioning block is provided at the connection between the cleaning plate and the connecting rod; when the positioning block conflicts with the connecting rod, the angle β between the cleaning plate and the connecting rod is an obtuse angle.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The present invention can effectively clean the silt at the bottom of the channel. At the same time, the channel bottom can be continuously cleaned by a plurality of cleaning plates that continuously circulate, thereby effectively improving the cleaning efficiency.

[0016] Through the structural coordination of the cleaning plate, chain plate, connecting rod and transmission rod, the cleaning plate can move within a certain range according to actual conditions, thereby enabling the present invention to effectively adapt to different water channels.

[0017] The combined structure of the cleaning plate, the chain plate, the connecting rod and the transmission rod can shrink autonomously, making the structure of the present invention more compact, thereby effectively reducing the connection burden of the connecting flange to a certain extent and extending the service life of the connecting flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : Overall structure diagram.

[0019] Figure 2 : Schematic diagram of the cleaning plate in the unfolded state.

[0020] Figure 3 : Clean up the board front view.

[0021] Figure 4 : Schematic diagram of the cleaning plate's contracted state.

[0022] In the figure: 1. Connecting flange; 2. Cleaning structure; 21. Power motor; 22. Cleaning plate; 23. Chain plate; 24. Transmission rod; 25. Connecting rod; 251. Limit block; 252. Accommodating groove; 221. Positioning block; 3. Mounting plate. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0024] A farmland channel desilting device comprises: a connecting flange 1, a cleaning structure 2, and a mounting plate 3. The cleaning structure 2 includes a power motor 21, a cleaning plate 22, a chain, a chain plate 23, a transmission rod 24, and a connecting rod 25. The chain is in the shape of a closed loop. There are two chains. The chain plate 23 is a rectangular plate. The ends of the chain plate 23 are connected to the two chains respectively. There are multiple chain plates 23, and the chain plates 23 are evenly spaced along the chain. The power motor 21 is connected to the chain in a transmission manner, so that the chain drives the chain plates 23 in continuous circular motion under the drive of the power motor 21. Specifically, the transmission structure between the power motor 21 and the chain includes a rotating rod with a gear at each end, each gear corresponding to a chain. The chain links are mounted on the gears, so that the gears can drive the chain to move. There are two rotating rods, and the two rotating rods confine the chain to a roughly rectangular area. Thus, the chain can be divided into a side away from the ground and a side close to the ground, and the two are connected by a semicircular bending area. Among them, the two rotating rods are the driven rotating rod and the active rotating rod. The length of the active rotating rod is longer than that of the driven rotating rod, so that one end of the active rotating rod can protrude from the corresponding gear. The output end of the power motor 21 is connected to the end of the active rotating rod protruding from the gear through a belt, so that the power motor 21 can drive the active rotating rod to rotate through the belt, thereby driving the chain to move continuously, and finally driving the chain plate 23 to circulate. At the same time, during the rotation of the active rotating rod, the driven rotating rod is affected by the rotation of the chain and rotates synchronously, thereby assisting the chain movement through the driven rotating rod.

[0025] The transmission rod 24 is a rectangular rod-shaped structure. One end of the transmission rod 24 is rotatably connected to the chain plate 23. A connecting rod 25 is disposed between the transmission rod 24 and the cleaning plate 22. One end of the connecting rod 25 is rotatably connected to the transmission rod 24, and the other end of the connecting rod 25 is rotatably connected to the cleaning plate 22. A limit block 251 is provided on the connecting rod 25. The limit block 251 is disposed at the end where the connecting rod 25 is connected to the transmission rod 24. When the connecting rod 25 rotates relative to the transmission rod 24, the connecting rod 25 drives the limit block 251 to rotate synchronously with the transmission rod 24. Therefore, during the rotation of the connecting rod 25, the limit block 251 may interfere with the transmission rod 24. When the limit block 251 interferes with the transmission rod 24, the angle α between the connecting rod 25 and the transmission rod 24 becomes acute. As a result, the limit block 251 effectively limits the maximum rotation range of the connecting rod 25. The connecting rod 25 also has a receiving groove 252, which corresponds to the transmission rod 24 and allows the transmission rod 24 to be embedded in the receiving groove 252. The receiving groove 252 thus prevents unnecessary interference between the connecting rod 25 and the transmission rod 24 during rotation. Furthermore, in an extreme state, the connecting rod 25 and the transmission rod 24 can overlap.

[0026] The cleaning plate 22 is a solid rectangular plate. Therefore, the weight of the cleaning plate 22 is greater than the weight of the transmission rod 24, the connecting rod 25, and the chain plate 23 combined. A positioning block 221 is provided on the cleaning plate 22. The positioning block 221 is provided at the connection between the cleaning plate 22 and the connecting rod 25. When the cleaning plate 22 rotates relative to the connecting rod 25, the cleaning plate 22 can drive the positioning block 221 to rotate synchronously relative to the connecting rod 25. During the rotation of the cleaning plate 22, the positioning block 221 may conflict with the connecting rod 25. When the positioning block 221 conflicts with the connecting rod 25, the angle β between the cleaning plate 22 and the connecting rod 25 is an obtuse angle. Thus, the maximum rotation range of the cleaning plate 22 is effectively limited by the positioning block 221.

[0027] The mounting plate 3 is fixedly mounted on a side of the cleaning structure 2 away from the ground. The connecting flange 1 is fixedly mounted on a side of the mounting plate 3 away from the cleaning structure 2. The power motor 21 is fixedly mounted on a side of the mounting plate 3 away from the ground.

[0028] In actual conditions, the cross-section of the canal is in the shape of an inverted trapezoid. When it is necessary to clean the silt at the bottom of the canal, the device is connected to the mechanical arm of the excavator through the connecting flange 1 to replace the bucket of the excavator. When it is necessary to clean the silt at the bottom of the canal, the water flow is blocked in advance, thereby lowering the liquid level in the canal and reducing the water flow rate in the canal to avoid excessive water flow rate from adversely affecting the subsequent cleaning process. After blocking the water flow, the mechanical arm of the excavator places the device above the canal so that the cleaning plate 22 can sweep the bottom of the canal from one side of the canal and move to the other side of the canal, that is, the movement direction of the cleaning plate 22 is perpendicular to the flow direction of the water. It is worth noting that, driven by the power motor 21, the cleaning plate 22 should enter the bending area before the chain plate 23.

[0029] Specifically, when the cleaning plate 22 is on the side of the cleaning structure 2 away from the ground, the structure composed of the cleaning plate 22, the connecting rod 25, the transmission rod 24, and the chain plate 23 (hereinafter referred to as the combined structure) is in a retracted state as shown in the accompanying drawings. Driven by the power motor 21, the combined structure moves synchronously. As the movement gradually proceeds, based on the aforementioned structural relationship, when the cleaning plate 22 enters the bending area, the cleaning plate 22 will move in the direction close to the ground under the action of gravity, thereby pulling the transmission rod 24 and the connecting rod 25 to rotate relative to each other, so that the transmission rod 24 and the connecting rod 25 are in an expanded state. When the cleaning plate 22 contacts the ground, the cleaning plate 22 cannot continue to move, and the expansion process of the transmission rod 24 and the connecting rod 25 is temporarily stopped. At this time, the cleaning plate 22 is located outside the canal. At the same time, driven by the power motor 21, the chain plate 23 is still in motion, and the chain plate 23 continues to drag the cleaning plate 22 forward through the transmission rod 24 and the connecting rod 25.

[0030] When the cleaning plate 22 moves to the side wall of the canal, since the side wall of the canal is an inclined surface, the cleaning plate 22 can continue to move downward along the side wall of the canal driven by the chain plate 23, so that the transmission rod 24 and the connecting rod 25 can continue to expand.

[0031] When the cleaning plate 22 moves to the bottom of the canal, let's take the case where the cleaning plate 22 just reaches the limit of its movable range. At this point, the cleaning plate 22 contacts the bottom of the canal, and the transmission rod 24 and the connecting rod 25 are fully extended. The cleaning plate 22 begins to push the silt at the bottom of the canal to move forward together. During the movement, the silt applies a force F1 to the cleaning plate 22 that is opposite to the direction of movement of the cleaning plate 22. Under the action of F1, the cleaning plate 22 is prompted to rotate relative to the connecting rod 25. When the positioning block 221 on the cleaning plate 22 conflicts with the connecting rod 25, the rotation of the cleaning plate 22 reaches the limit state. At this point, F1 is transmitted to the connecting rod 25 via the positioning block 221, causing the connecting rod 25 to rotate relative to the transmission rod 24. When the limit block 251 conflicts with the transmission rod 24, the rotation of the connecting rod 25 reaches the limit state. At this point, F1 is transmitted to the transmission rod 24 via the limit block 251. Because the chain plate 23 is still in motion, the transmission rod 24 is simultaneously dragged by the chain plate 23 and acted upon by the force F1. Ultimately, the transmission rod 24 assumes an inclined position similar to that shown in the accompanying figure. Consequently, under the drag of the chain plate 23, the cleaning plate 22 pushes the silt at the bottom of the channel toward the other sidewall of the channel.

[0032] When the cleaning plate 22 is in contact with the other side wall of the canal, because the side wall is an inclined surface, the force applied by the side wall to the cleaning plate 22 can be decomposed into a supporting force in the vertical direction and a thrust in the same direction as F1. At this time, because the angle β between the cleaning plate 22 and the connecting rod 25 is an obtuse angle and under the restriction of the positioning block 221, the cleaning plate 22 and the connecting rod 25 maintain their current state to resist the combined force of the thrust and force F1, so that the cleaning plate 22 can maintain a state of contact with the side wall of the canal. At the same time, because the angle α between the connecting rod 25 and the transmission rod 24 is an acute angle and the rotation of the transmission rod 24 is not restricted, under the action of the supporting force, the connecting rod 25 and the transmission rod 24 can rotate relative to each other, and the transmission rod 24 and the chain plate 23 can rotate relative to each other. As a result, the connecting rod 25 and the transmission rod 24 can retract autonomously, so that the cleaning plate 22 will not get stuck with the side wall of the canal. In summary, under the drag of the chain plate 23, the cleaning plate 22 can push the silt to move along the side wall of the canal.

[0033] When the cleaning plate 22 moves to the outside of the canal, the cleaning plate 22 pushes the silt outside the canal. At this time, the cleaning plate 22 will pass through the bending area from the side close to the ground to the side away from the ground. When the cleaning plate 22 enters the bending area, the cleaning plate 22 will gradually leave the ground. At this time, the silt will gradually separate from the cleaning plate 22 under the action of gravity. Eventually, it will accumulate outside the canal. At the same time, based on the aforementioned structural setting, the state of the combined structure will gradually reverse. Under the action of gravity, the cleaning plate 22 gradually changes from pulling the connecting rod 25 and the transmission rod 24 to expanding it to pressing down the connecting rod 25 and the transmission rod 24 to contracting it. When the combined structure completely enters the side away from the ground, the combined structure returns to its initial contracted state, so that it can enter the next action cycle.

[0034] Therefore, the device can clean an area of the canal. During actual operation, the operator drives the device along the canal through the excavator, so that the device can clean the entire canal.

[0035] In summary, the present invention can push the silt at the bottom of the channel out of the channel through the cleaning plate 22, thereby achieving the purpose of cleaning the channel. At the same time, in actual conditions, the number of cleaning plates 22 is multiple and they are in a state of circular motion. The present invention can continuously clean the channel, thereby effectively improving the efficiency of cleaning the silt at the bottom of the channel.

[0036] On the other hand, based on the aforementioned action process, the combined structure can perform corresponding actions within a certain range, so that the cleaning plate 22 maintains a state of being in contact with the canal. As a result, the present invention can effectively adapt to different canals. Specifically, for canals with different side wall inclination angles, based on the aforementioned process, the cleaning plate 22 can effectively fit with the side walls of the canal, thereby effectively pushing the silt out of the canal. For canals of different widths, if the canal width is smaller than the width of this device, the device can be placed above the canal by an excavator. If the canal width is larger than the width of this device, the excavator's mechanical arm can be used to assist the device in sweeping from one side of the canal to the other.

[0037] At the same time, the self-retractable combined structure makes it unnecessary for the present device to install other supporting structures between the connecting flange 1 and the cleaning structure 2 to circumvent the cleaning plate 22. As a result, the structural structure of the present device is more compact, thereby effectively shortening the length of the present device in the vertical direction. When cleaning sludge, it can be regarded as the entire device being acted upon by force F1, and the connection between the connecting flange 1 and the excavator arm needs to bear force F1. At this time, the present device can be regarded as a lever for transmitting force F1. If the length of the present device in the vertical direction is too long, the connection burden at the connecting flange 1 will be increased. In summary, the self-retractable combined structure effectively reduces the burden on the connecting flange 1 and extends the service life of the connecting flange 1.

[0038] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A farmland channel desilting device, characterized by: include: Connecting flange (1) and cleaning structure (2); The connecting flange (1) is arranged on a side of the cleaning structure (2) away from the ground; The connecting flange (1) is connected to the cleaning structure (2); The cleaning structure (2) comprises a power motor (21) and a cleaning plate (22); The number of the cleaning plates (22) is multiple; The cleaning plates (22) are arranged in a ring shape; The power motor (21) is in transmission connection with the cleaning plate (22) to drive the cleaning plate (22) to circulate; The cleaning structure (2) further comprises a chain and a chain plate (23); The chain is in a closed loop shape; The chain is in transmission connection with the power motor (21); The number of the chain plates (23) is multiple; The chain plates (23) are evenly arranged on the chain; The chain plates (23) correspond to the cleaning plates (22) in a one-to-one manner; The chain plate (23) is connected to the cleaning plate (22); The cleaning structure (2) further comprises a transmission rod (24) and a connecting rod (25); The transmission rod (24) is rotatably connected to the chain plate (23); One end of the connecting rod (25) is rotatably connected to the transmission rod (24); The other end of the connecting rod (25) is rotatably connected to the cleaning plate (22); A limit block (251) is provided on the connecting rod (25); The limiting block (251) is provided at one end of the connecting rod (25) connected to the transmission rod (24); A positioning block (221) is provided on the cleaning plate (22); The positioning block (221) is arranged at the connection between the cleaning plate (22) and the connecting rod (25).

2. The farmland channel desilting device according to claim 1, characterized in that: Also includes a mounting plate (3); The mounting plate (3) is arranged on a side of the cleaning structure (2) away from the ground; The mounting plate (3) is connected to the cleaning structure (2); The connecting flange (1) is fixedly arranged on a side of the mounting plate (3) away from the cleaning structure (2); The power motor (21) is fixedly arranged on the mounting plate (3).

3. The farmland channel desilting device according to claim 1, characterized in that: When the limiting block (251) contacts the transmission rod (24), the angle α between the connecting rod (25) and the transmission rod (24) is an acute angle.

4. The farmland channel desilting device according to claim 1, characterized in that: The connecting rod (25) is provided with a receiving groove (252); The accommodating groove (252) corresponds to the transmission rod (24); The transmission rod (24) can be embedded in the accommodating groove (252).

5. The farmland channel desilting device according to claim 1, characterized in that: When the positioning block (221) contacts the connecting rod (25), the angle β between the cleaning plate (22) and the connecting rod (25) is an obtuse angle.

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