Dredging device for irrigation and water conservancy channel
By designing a mud extraction box and flaw detection mechanism with a partition structure, the problem of mixing and testing of water and sludge during silt cleaning in the prior art is solved, efficient cleaning and water quality protection are achieved, and holes at the bottom of the detection channel can be synchronized.
Patent Information
- Application Number
- CN202411740107.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-02-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The prior art can easily cause water and sludge to mix in large areas during the silt cleaning process, resulting in turbidity in the water. The silt cleaning device has a single function, making it difficult to simultaneously detect whether there are cracked holes on the cement surface at the bottom of the channel.
A farmland water conservancy channel dredging device is designed, including mud extraction box, dredging mechanism, drive mechanism and flaw detection mechanism. The inside of the mud box is divided into a silt buffer area, a water convection area and a silt interception area. Through the cooperation of ropes and wedge blocks, efficient interception and transportation of silt is achieved; the flaw detection mechanism uses the fishing rope and the float shell to detect whether there are holes at the bottom of the channel.
Effectively prevent the mixing of water and silt during the silt process, keep the water quality clean, efficiently clean the silt at the bottom of the channel, prevent damage to the cement bottom, and realize the detection of holes at the bottom of the channel.
Smart Images
Figure CN119507512A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of water conservancy channel desilting, in particular to a farmland water conservancy channel desilting device. Background Art
[0002] Farmland water conservancy channels are waterways that connect irrigation water sources to irrigated land. Their main function is to transport water through pipes to irrigate farmland. Due to water scouring and accumulation of sediment, silt will form at the bottom of the channel. The silt will not only pollute the water quality, but also reduce the effective water-passing section of the channel, resulting in increased water flow resistance and reduced flow. Therefore, it is necessary to regularly desilt the water conservancy channels.
[0003] In the prior art, excavators are often used to excavate silt in channels. When the excavator bucket excavates silt, the silt and water will be disturbed and mixed over a large area, and some of the silt will easily be mixed with water for a second time, causing the water to become turbid. In fine irrigation methods such as drip irrigation, high requirements are placed on water quality, because tiny impurities may cause drippers to be blocked, and thus the water after dredging cannot be irrigated in time. When the excavator bucket contacts the bottom of the channel, the silt blocks the line of sight and the bucket may dig too deep and damage the cement surface at the bottom of the channel. In addition, most dredging devices have a single function, which is not conducive to detecting whether there are cracks or holes in the cement surface at the bottom of the channel during the dredging process. Summary of the invention
[0004] The object of the present invention is to provide a farmland water conservancy channel dredging device to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solutions:
[0006] A farmland water conservancy channel dredging device, comprising:
[0007] The mud box has one side fixed to the bottom end of the mechanical arm of the external excavator;
[0008] A bottom plate is fixed inside the mud box, a side plate is fixed on one side of the bottom plate, and the bottom plate and the side plate separate the internal space of the mud box into a silt buffer area, a water convection area and a silt interception area;
[0009] A dredging mechanism is arranged outside the bottom plate and is used to transport the sludge in the sludge interception area to the sludge buffer area. The dredging mechanism includes a rope, and a sealing plate and a wedge block 2 are fixed in series on the outside of the rope, both of which are slidably abutted against the bottom plate;
[0010] The driving mechanism is fixed on one side of the mud box and is used to pull the sealing plate and the wedge block 2 to move synchronously with the rope;
[0011] A transfer box, connected and fixed to one end of the mud taking box;
[0012] The flaw detection mechanism is arranged between the wedge block 2 and the mud box, and detects whether there are holes at the bottom of the water conservancy channel during the process of the wedge block 2 pushing the sludge.
[0013] Furthermore, a rotating seat rotatably connected to a mechanical arm of an external excavator is fixed on one side of the top of the mud box, a rectangular hole is opened at one end of the mud buffer area, and mesh plates are arranged at both ends of the water convection area.
[0014] Furthermore, two guide rails are fixed inside the mud box, both of which are slidably connected to the sealing plate; a baffle is detachably fixed on the top surface of the sealing plate; and sliding blocks slidably connected to the mud box are fixed at both ends of the wedge block 2.
[0015] Furthermore, a guide wheel for conveying a rope is rotatably disposed at one end of the mud box, a wedge-shaped block 1 is fixed at one end of the mud interception area, and the rope passes through the wedge-shaped block 1.
[0016] Further, the driving mechanism comprises:
[0017] There are two support seats, both of which are fixed to the mud box;
[0018] There are two winding wheels, which are rotatably connected between the two support seats, and a gear is fixed on the outer side of the winding wheel, and the two gears are meshed for transmission;
[0019] The motor is fixedly connected to the support seat at the corresponding position and is used to drive the winding wheel at the corresponding position to rotate forward and reverse.
[0020] Furthermore, an external silt extraction pump is installed inside the transfer box, and a discharge pipe is connected and fixed to the top of the transfer box.
[0021] Further, the flaw detection mechanism comprises:
[0022] A plurality of telescopic members are fixed on one side of the wedge-shaped block 2;
[0023] A support plate is fixed to one end of the wedge-shaped block 2, and a plurality of connecting rods are fixed to the top of the support plate;
[0024] A plurality of fishing lines, one end of which is fixed to a plurality of telescopic members at corresponding positions, and the other end of which passes through a support plate and a connecting rod at a corresponding position in sequence and is fixed to a float housing.
[0025] Furthermore, the telescopic member comprises a sleeve, and a sliding rod fixedly connected to the fishing line is slidably connected inside the sleeve.
[0026] Furthermore, a compression spring is fixed between the sleeve and the slide rod, and the telescopic member is arranged tilted.
[0027] Furthermore, the float shell is composed of two detachable and fixed hemispherical shells, and a winding wheel which is fixed and cross-talked with the fishing line is rotatably connected inside one of the hemispherical shells.
[0028] Compared with the prior art, the present invention has the following beneficial effects:
[0029] 1. By setting the shape of the mud box to a trapezoid, it is convenient to put the mud box into a channel with a trapezoidal cross-section. A bottom plate and a side plate are fixed inside the mud box, which can divide the internal space of the mud box into an upper silt buffer area and a lower silt interception area. The mud box can be driven vertically into the channel by an external excavator. During the downward movement of the mud box, the water below it is gradually discharged, and finally the silt is intercepted in the silt interception area. The driving mechanism pulls the rope to make the sealing plate leave the rectangular hole, so that the wedge block 2 pushes the silt inside the silt interception area to the rectangular hole position, so that the silt moves through the rectangular hole and is cached in the silt buffer area on the upper part of the mud box, effectively preventing large-scale mixing of water and silt during dredging and causing water turbidity.
[0030] 2. By setting a silt interception area at the bottom of the mud box, the silt interception area separates water and silt, and at the same time, the silt in this area can be pushed into the mud box with the help of wedge block 2. Compared with the excavator with a bucket to take mud, it can not only clean the silt at the bottom of the channel efficiently and cleanly, but also prevent the cement bottom surface of the channel from being damaged during the dredging process.
[0031] 3. After the wedge block 2 moves to abut against the wedge block 1, the wedge block 2 blocks the bottom of the rectangular hole to prevent the sludge inside the mud box from falling off when the mud box is lifted. The excavator's mechanical arm can be used to dump the sludge from the open end of the mud box, making it convenient to concentrate the sludge into a pile;
[0032] After the wedge block 2 pushes all the silt in the silt intercepting area into the sludge collecting box, the driving mechanism is used to pull the rope in the reverse direction to make the sealing plate move with the baffle toward the transfer box. The baffle facilitates pushing the silt in the silt buffer area into the transfer box. A silt extraction pump in the prior art can be installed in the transfer box in advance, and the mud outlet pipe of the silt extraction pump extends from the discharge pipe, which is convenient for spraying the silt, thereby realizing the discharge of silt in different ways.
[0033] 4. Multiple telescopic parts are fixed on one side of the wedge block 2. The slide rod on the telescopic part is connected and fixed with the float shell through the fishing line. The winding wheel inside the float shell is rotated and adjusted in advance so that the rope length between the connecting rod and the float shell can meet the requirement that the float shell can float on the water surface during the subsequent dredging process. When the wedge block 2 moves along the bottom of the channel to push the silt, the telescopic part slides synchronously with the wedge block 2 on the bottom of the channel after dredging. When a hole appears at the bottom of the channel cement, the slide rod is inserted into the hole under the elastic force of the extrusion spring. The downward slide rod pulls the fishing line to make the float shell sink into the water. During the dredging process, the user can judge whether the bottom of the channel is damaged by observing the sinking of the float, and detect whether there are holes on the bottom of the channel cement while dredging.
[0034] By installing multiple telescopic parts at different positions on one side of the wedge block, each telescopic part is connected to a float shell by a fishing line. The float shells at different positions can be pre-coated with different colors, which is convenient for users to judge the damage of different positions of the cement bottom surface according to the sinking of floats of different colors. Multiple telescopic parts can slide at different positions of the cement bottom surface of the channel, which is also convenient for all-round flaw detection of channel damage, thereby improving the accuracy of the flaw detection results of the channel bottom to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention and an external excavator;
[0036] Figure 2 It is a schematic diagram of the overall structure of the present invention;
[0037] Figure 3 This is a schematic diagram of the structure of the sealing plate in the open state in the present invention;
[0038] Figure 4 It is a schematic diagram of the bottom structure of the mud box in the present invention;
[0039] Figure 5 It is a schematic diagram of the internal structure of the mud taking box in the present invention;
[0040] Figure 6 It is a schematic diagram of the structure of the bottom plate, the dredging mechanism, the driving mechanism and the flaw detection mechanism in the present invention;
[0041] Figure 7 It is a schematic diagram of the structure of the wedge block 2 and the flaw detection mechanism in the present invention;
[0042] Figure 8 The present invention Figure 7 A schematic diagram of the partially enlarged structure at center A;
[0043] Fig. 9 It is a schematic diagram of the internal structure of the float housing in the present invention.
[0044] In the figure: 100, external excavator; 200, mud box; 210, silt buffer area; 211, rectangular hole; 220, water convection area; 230, silt interception area; 231, wedge block 1; 240, guide wheel; 250, mesh plate; 260, guide groove; 300, bottom plate; 310, side plate; 400, dredging mechanism; 410, rope; 420, sealing plate; 421, baffle; 430, wedge Shape block 2; 500, driving mechanism; 510, supporting seat; 520, winding wheel; 530, gear; 540, motor; 600, transfer box; 610, limit block; 700, flaw detection mechanism; 710, telescopic part; 711, sleeve; 712, slide rod; 713, extrusion spring; 720, supporting plate; 721, connecting rod; 730, fishing line; 740, float shell; 741, winding wheel. DETAILED DESCRIPTION
[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0046] For example, see Figure 1-9 In an embodiment of the present invention, a dredging device for a farmland water conservancy channel includes a mud box 200 fixedly installed at the bottom end of a mechanical arm of an external excavator 100, a bottom plate 300 is fixed inside the mud box 200, a side plate 310 is fixed to one side of the bottom plate 300, the bottom plate 300 and the side plate 310 separate the internal space of the mud box 200 into a silt buffer area 210, a water convection area 220 and a silt interception area 230, a dredging mechanism 400 is arranged outside the bottom plate 300, the dredging mechanism 400 is used to transport the silt in the silt interception area 230 to the silt buffer area 210, and the dredging mechanism 400 includes a rope 410, the rope A sealing plate 420 and a wedge block 430 are fixed in series on the outside of the rope 410, both of which are slidably pressed against the bottom plate 300. A driving mechanism 500 is fixed on one side of the mud box 200. The driving mechanism 500 is used to pull the rope 410 to move the sealing plate 420 and the wedge block 430 synchronously. A transfer box 600 is connected and fixed at one end of the mud box 200. The transfer box 600 is used to spray the sludge out through an external sludge extraction pump. A flaw detection mechanism 700 is arranged between the wedge block 430 and the mud box 200. The flaw detection mechanism 700 detects whether there are holes at the bottom of the water conservancy channel when the wedge block 430 pushes the sludge.
[0047] Specifically, the mud box 200 is placed vertically into the channel with the help of the mechanical arm of the external excavator 100, and the mud box 200 drains the water above the mud to be collected, and intercepts the silt inside the mud interception area 230 at the bottom of the mud box 200. The driving mechanism 500 pulls the rope 410 to make the sealing plate 420 inside the mud box 200 leave the rectangular hole 211. At the same time, the wedge block 2430 pushes the silt in the silt interception area 230 to the position of the rectangular hole 211, so that the silt is squeezed and transported to the inside of the silt buffer area 210 on the mud box 200. The mud box 200 is lifted to facilitate the separate cleaning and treatment of the silt, and to a certain extent prevent the silt from mixing with water during the dredging process, so that the water after dredging remains clean and tidy, and can be put into fine irrigation methods such as drip irrigation in time.
[0048] like Figure 1 As shown, in this embodiment, a rotating seat rotatably connected to the mechanical arm of the external excavator 100 is fixed on one side of the top of the mud box 200. The upper arm and the lower arm of the mechanical arm of the external excavator 100 can drive the mud box 200 to move as a whole through the rotating seat, so as to put the mud box 200 into the channel, take it out from the channel, or dump the silt inside the mud box 200. The external excavator 100 is a mechanical device with prior art, and the specific working principle of driving the mud box 200 to move is not elaborated here.
[0049] like Figure 3 As shown, in the present embodiment, a rectangular hole 211 is provided at one end of the sludge buffer zone 210, and mesh plates 250 are provided at both ends of the water convection zone 220. The rectangular hole 211 facilitates the pushing of the sludge inside the sludge interception zone 230 to the position of the sludge buffer zone 210, and the mesh plate 250 enables the water convection zone 220 to allow water to flow through. When the mud box 200 is put into the water, the water discharged from both ends of the mud box 200 can flow in a balanced manner along the water convection zone 220, preventing the water level inside the channel from rising instantly and irrigating the inside of the mud box 200. The mud box 200 can be made to fall slowly during its falling process, which will also improve the stability of the water area during the dredging process to a certain extent.
[0050] like Figure 4 and Figure 6 As shown, in this embodiment, the inclined surface of wedge block 1 231 is facing upward, and the inclined surface of wedge block 2 430 is facing downward. When wedge block 2 430 is pulled by rope 410 and contacts wedge block 1 231, the silt between wedge block 1 231 and wedge block 2 430 can be fully pushed into the mud box 200.
[0051] like Figure 5 and Figure 6As shown, in this embodiment, two guide rails are fixed on the inner side of the mud box 200, both of which are slidably connected to the sealing plate 420. The guide rails enable the sealing plate 420 to move stably on the surface of the bottom plate 300, and sliders slidably connected to the mud box 200 are fixed at both ends of the wedge block 230. A sliding groove slidably connected to the sliding groove is provided on one side of the bottom of the mud box 200, so that the wedge block 230 can move back and forth smoothly at the bottom of the bottom plate 300.
[0052] In this embodiment, when the wedge block 2 430 moves toward the direction of the wedge block 1 231, the silt is pushed into the mud box 200. When the wedge block 2 430 moves from the position of the wedge block 1 231 in the opposite direction to the initial position, a silt intercepting area 230 enclosed around the bottom of the mud box 200 is formed again, which facilitates the mud box 200 to change position for the second time to continue dredging.
[0053] like Figure 3 and Figure 6 As shown, in the present embodiment, a baffle 421 is detachably fixed on the top surface of the sealing plate 420. As the sealing plate 420 moves toward the transfer box 600, the baffle 421 can transport the sludge inside the mud box 200 to the transfer box 600 in a directional manner, so that the sludge can be sprayed out through the sludge extraction pump inside the transfer box 600. The sludge extraction pump is a prior art component, and its specific working principle will not be elaborated herein.
[0054] In this embodiment, the baffle 421 on the sealing plate 420 can also be removed and used. When the rope 410 pulls the wedge block 2 430 to move away from the wedge block 1 231, the sealing plate 420 can move through the silt above the bottom plate 300 to the rectangular hole 211 to close the mud box 200. At the same time, the wedge block 2 430 moves to the initial position to prepare for the next dredging, which is convenient for the mud box 200 to store silt multiple times in a row. When a certain amount of silt is cached inside the mud box 200, the mud box 200 is turned over to dump the silt.
[0055] like Figure 3 and Figure 6 As shown, in this embodiment, a guide wheel 240 for conveying a rope 410 is rotatably provided at one end of the mud box 200 , a wedge block 231 is fixed at one end of the mud interception area 230 , and the rope 410 passes through the wedge block 231 .
[0056] In this embodiment, the guide wheel 240 serves to make the rope 410 reverse and transmit smoothly, so that the rope 410 pulls the sealing plate 420 and the wedge block 430 to move in two directions respectively. The wedge block 1 231 is used to cooperate with the wedge block 430 to clean the silt inside the silt intercepting area 230. Both ends of the wedge block 1 231 and the wedge block 2 430 are inclined surfaces, which is convenient for adapting to the design requirement that the inner side of the mud box 200 is an inclined surface.
[0057] like Figure 6 As shown, in this embodiment, the driving mechanism 500 includes two support seats 510, and the two support seats 510 are fixed to the mud box 200. Two winding wheels 520 rotate between the two support seats 510. The two winding wheels 520 are rotatably connected between the two support seats 510. Gears 530 are fixed to the outer sides of the winding wheels 520. The two gears 530 are meshed for transmission. A motor 540 is fixed to the outer side of one support seat 510, and the motor 540 is used to drive the winding wheel 520 at the corresponding position to rotate forward and reverse.
[0058] In this embodiment, during the dredging process, the motor 540 drives one of the winding wheels 520 to rotate and release the rope 410. Under the meshing transmission action of the two gears 530, the other winding wheel 520 rotates the winding rope 410 in the opposite direction, so that the rope 410 and the sealing plate 420 leave the rectangular hole 211, and the wedge block 2 430 moves toward the wedge block 1 231, and the silt in the silt interception area 230 is transported through the rectangular hole 211 to the silt buffer area 210 at the upper part of the mud box 200.
[0059] like Figure 2 As shown, in this embodiment, a protective cover 1 and a protective cover 2 are respectively fixed to both ends of the mud box 200. The protective cover 1 is used to protect the guide wheel 240, and the protective cover 2 is used to protect the driving mechanism 500.
[0060] like Figure 2 As shown, in this embodiment, an external silt extraction pump is installed inside the transfer box 600, and a discharge pipe is connected and fixed to the top of the transfer box 600. The silt extraction pump can be installed inside the transfer box 600 in advance to facilitate the spraying of the silt transported to the inside of the transfer box 600 from the discharge pipe through the external pipeline.
[0061] like Figure 4 As shown, in this embodiment, two limit blocks 610 are fixed to the outside of the transfer box 600, and the rope 410 passes through the position between the two limit blocks 610 to facilitate the directional transmission of the rope 410.
[0062] Embodiment 2, based on embodiment 1, is to simultaneously detect whether there are leaking holes on the cement bottom of the channel caused by water scouring or other construction factors during the dredging process.
[0063] like Figure 6 and Figure 7As shown, in this embodiment, the flaw detection mechanism 700 includes a plurality of telescopic members 710 fixed on one side of the wedge block 430 and a support plate 720 fixed on one end of the wedge block 430, a plurality of connecting rods 721 are fixed on the top of the support plate 720, a fishing line 730 is fixed inside the telescopic member 710, one end of the fishing line 730 away from the telescopic member 710 passes through the support plate 720 and the corresponding connecting rod 721 in sequence and is fixed with a float housing 740, the telescopic member 710 includes a sleeve 711, a sliding rod 712 fixedly connected to the fishing line 730 is slidably connected inside the sleeve 711, and an extrusion spring 713 is fixed between the sleeve 711 and the sliding rod 712.
[0064] Specifically, when it is necessary to simultaneously detect whether there are holes in the cement bottom surface of the channel during the dredging process, the telescopic part 710 is pre-installed on the outer side of the wedge block 430. When the wedge block 430 moves along the cement bottom surface of the channel, when the slide bar 712 slides to the hole position, it will move toward the inside of the hole under the action of the compression elastic force of the extrusion spring 713, and the moving slide bar 712 will pull the fishing line 730 downward, and the fishing line 730 will pull the float shell 740 downward. When the user observes that the float shell 740 sinks into the water, it indicates that there is a hole in the cement bottom surface of the channel, which is convenient for manual marking and later repair.
[0065] like Figure 7 As shown, in this embodiment, the telescopic member 710 is arranged at an angle, and after the inclined sliding rod 712 is inserted into the inside of the hole, it slides out smoothly from the hole along with the movement of the wedge block 430.
[0066] like Fig. 9 As shown, in this embodiment, the float housing 740 is composed of two detachably fixed hemispherical shells, and a winding wheel 741 which is fixed and cross-talked with the fishing line 730 is rotatably connected inside one of the hemispherical shells.
[0067] In this embodiment, before the float shell 740 is launched into the water, the length of the fishing line 730 between the float shell 740 and the end of the connecting rod 721 can be adjusted according to the water depth of the canal to ensure that the float shell 740 can float on the water surface when the sliding rod 712 does not move in the later stage. When adjusting the length of the fishing line 730, the two hemispherical shells of the float shell 740 can be opened, and then the winding wheel 741 inside one hemispherical shell can be rotated to release or reel in the line, and finally the two hemispherical shells are screwed together and fixed. At the same time, the fishing line 730 is also clamped and fixed by the two hemispherical shells and will not adjust its length by itself.
[0068] like Figure 7 and Figure 8As shown, in this embodiment, the fishing line 730 at the end of the sliding rod 712 passes through the middle part of the extrusion spring 713 and the wedge block 430 in sequence, and then extends to the inside of the support plate 720 and multiple connecting rods 721, and finally extends from the bottom end of the connecting rod 721 to fix the float housing 740. A fixing block is fixed on the top of the support plate 720, and the fixing block is used to fix multiple connecting rods 721 at the same time. The fishing line 730 extends from the support plate 720 to the inside of the connecting rod 721 and also passes through the fixing block.
[0069] like Figure 2 , Figure 5 and Figure 7 As shown, in the present embodiment, a guide groove 260 is opened inside one side of the mud box 200, the support plate 720 is slidably connected to the guide groove 260, and the connecting rod 721 is slidably abutted against the inner side of the mud box 200, so that the wedge block 2430 can move stably on the mud box 200 with the help of the support plate 720, and at the same time, the support plate 720 supports the fishing line 730 and the float shell 740 inside the water convection zone 220 with the help of the connecting rod 721.
[0070] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0071] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A farmland water conservancy channel dredging device, comprising an external excavator (100) characterized in that: Also includes: A mud box (200) is fixedly mounted on one side to the bottom end of a mechanical arm of an external excavator (100); A bottom plate (300) is fixed inside the mud box (200), a side plate (310) is fixed on one side of the bottom plate (300), and the bottom plate (300) and the side plate (310) separate the internal space of the mud box (200) into a silt buffer area (210), a water convection area (220) and a silt interception area (230); A dredging mechanism (400) is arranged outside the bottom plate (300) and is used to transport the sludge in the sludge interception area (230) to the sludge buffer area (210). The dredging mechanism (400) comprises a rope (410). A sealing plate (420) and a wedge block 2 (430) are fixed in series to the outside of the rope (410) and are both slidably abutted against the bottom plate (300). A driving mechanism (500) is fixed to one side of the mud box (200) and is used to pull the rope (410) to move the sealing plate (420) and the second wedge block (430) synchronously; A transfer box (600) is connected and fixed to one end of the mud taking box (200); The flaw detection mechanism (700) is arranged between the second wedge block (430) and the mud box (200) to detect whether there are holes at the bottom of the water conservancy channel during the process of the second wedge block (430) pushing the mud.
2. The farmland water conservancy channel dredging device according to claim 1, characterized in that: A rotating seat rotatably connected to a mechanical arm of an external excavator (100) is fixed on one side of the top of the mud box (200), a rectangular hole (211) is opened at one end of the mud buffer area (210), and mesh plates (250) are arranged at both ends of the water convection area (220).
3. The farmland water conservancy channel dredging device according to claim 1, characterized in that: Two guide rails are fixed inside the mud box (200) and are both slidably connected to the sealing plate (420). A baffle (421) is detachably fixed on the top surface of the sealing plate (420). Both ends of the wedge block 2 (430) are fixed with sliders slidably connected to the mud box (200).
4. The farmland water conservancy channel dredging device according to claim 1, characterized in that: A guide wheel (240) for conveying a rope (410) is rotatably provided at one end of the mud box (200), a wedge block (231) is fixed at one end of the mud interception area (230), and the rope (410) passes through the wedge block (231).
5. The farmland water conservancy channel dredging device according to claim 1, characterized in that: The driving mechanism (500) comprises: There are two support seats (510), and both support seats (510) are fixed to the mud box (200); There are two winding wheels (520), the two winding wheels (520) are rotatably connected between the two support seats (510), a gear (530) is fixed on the outer side of the winding wheel (520), and the two gears (530) are meshed for transmission; The motor (540) is fixedly connected to the support seat (510) at the corresponding position, and is used to drive the winding wheel (520) at the corresponding position to rotate forward and reverse.
6. The farmland water conservancy channel dredging device according to claim 1, characterized in that: An external silt extraction pump is installed inside the transfer box (600), and a discharge pipe is connected and fixed to the top of the transfer box (600).
7. The farmland water conservancy channel dredging device according to claim 1, characterized in that: The flaw detection mechanism (700) comprises: A plurality of telescopic members (710) are fixed on one side of the second wedge block (430); A support plate (720) is fixed to one end of the wedge-shaped block 2 (430), and a plurality of connecting rods (721) are fixed to the top of the support plate (720); A plurality of fishing lines (730), one end of each of the fishing lines (730) being fixed to a plurality of telescopic members (710) at corresponding positions, and the other end of each of the fishing lines (730) passing through a support plate (720) and a connecting rod (721) at corresponding positions in sequence and being fixed to a float housing (740).
8. The farmland water conservancy channel dredging device according to claim 7, characterized in that: The telescopic member (710) comprises a sleeve (710), and a sliding rod (712) fixedly connected to the fishing line (730) is slidably connected inside the sleeve (710).
9. The farmland water conservancy channel dredging device according to claim 8, characterized in that: A compression spring (713) is fixed between the sleeve (710) and the slide rod (712), and the telescopic member (710) is arranged tilted.
10. The farmland water conservancy channel dredging device according to claim 9, characterized in that: The floating ball housing (740) is composed of two detachably fixed hemispherical shells, and a winding wheel (741) which is fixedly connected to the fishing line (730) is rotatably connected inside one of the hemispherical shells.