A wetland cell bottom sediment dredging device

Abstract

The utility model relates to a kind of wetland unit bottom mud dredging device, including tracked vehicle and the dredging box being installed on tracked vehicle, the front end of dredging box is equipped with depth adjusting mechanism, depth adjusting mechanism bottom is equipped with horizontal shift mechanism, dredging box top is equipped with suction dredging pump, suction dredging pump outlet is equipped with the first dredging pipe connected with dredging box, inlet is connected with second dredging pipe, and second dredging pipe bottom is rotatably connected with dredging pipe, rotating mechanism is equipped on horizontal shift mechanism and drives the rotation of dredging pipe, and dredging pipe bottom is detachably installed with suction head with screen, and horizontal shift mechanism is equipped with the cleaning mechanism for preventing suction head blockage. The utility model can effectively prevent suction head blockage, and can realize more flexible dredging operation, improve the efficiency and reliability of wetland dredging operation.

Description

Technical Field

[0001] This utility model relates to the field of wetland ecological maintenance equipment technology, and in particular to a wetland unit bottom sediment dredging device. Background Technology

[0002] Wetlands are important natural ecosystems, and sediment accumulation in their bottoms can affect water quality and ecological functions. Existing wetland dredging devices, such as the Chinese utility model patent with publication number CN220318626U, disclose a dredging device for wetland protection that operates using a tracked vehicle, a dredging box, a dredging mechanism, and a laterally movable suction head, which improves dredging efficiency to some extent.

[0003] However, in practical applications, this existing technology still has significant drawbacks: although its suction head is equipped with a screen to prevent large impurities from entering the pipe, wetland sediment often contains aquatic plants, fibers, plastic film, and other debris, which easily adhere to and clog the screen. Once clogged, it leads to a sharp decrease in suction flow, an increased load on the dredging pump, and may even force a shutdown for manual cleaning, seriously affecting the continuity and automation of dredging operations. In addition, the suction head of this device has a limited function, only enabling lateral movement and depth adjustment, making the dredging mode inflexible.

[0004] Therefore, there is an urgent need for a device that can effectively prevent the suction head from clogging and enable more flexible dredging operations, so as to improve the efficiency and reliability of wetland dredging operations. Summary of the Invention

[0005] This invention aims to address the shortcomings of existing technologies by providing a wetland unit bottom sediment dredging device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a wetland unit bottom sediment dredging device, including a tracked vehicle and a dredging box installed on the tracked vehicle. The front end of the dredging box is provided with a depth adjustment mechanism, and the bottom of the depth adjustment mechanism is provided with a transverse movement mechanism. A sludge suction pump is installed on the top of the dredging box. A first sludge conveying pipe connected to the dredging box is provided at the outlet of the sludge suction pump, and a second sludge conveying pipe is connected at the inlet. A sludge suction pipe is rotatably connected to the bottom of the second sludge conveying pipe. A rotating mechanism for driving the sludge suction pipe to rotate is provided on the transverse movement mechanism. A sludge suction head with a screen is detachably installed at the bottom of the sludge suction pipe, and a cleaning mechanism for preventing the sludge suction head from clogging is provided on the transverse movement mechanism.

[0007] Specifically, the depth adjustment mechanism includes a support base set on the front face of the sludge removal box, a first electric cylinder installed in the support base, a lifting box installed at the bottom of the telescopic rod of the first electric cylinder, a lateral movement mechanism installed in the lifting box, and a reinforcing plate between the bottom of the telescopic rod of the first electric cylinder and the lifting box.

[0008] In particular, the front face of the sludge removal box is equipped with guide rails on both sides, and the lifting box is slidably connected to the guide rails.

[0009] Specifically, the transverse mechanism includes a lead screw rotatably connected between the inner walls of the two sides of the lifting box, a first motor installed inside the lifting box to drive the lead screw to rotate, a sliding sleeve slidably connected to the inner wall of the lifting box and threadedly connected to the lead screw, and a transverse box fixed on the sliding sleeve. The transverse box slides along the front end face of the lifting box, and the front end face of the lifting box is provided with a slot corresponding to the sliding sleeve. The rotation mechanism and the cleaning mechanism are installed on the transverse box.

[0010] Specifically, several bearing seats are installed on the front end of the transverse transfer box, and the sludge suction pipe is rotatably connected to the bearing seats through the bearings.

[0011] Specifically, the rotating mechanism includes a second motor mounted on the top of the transverse box, and the main shaft of the second motor and the outer wall of the suction pipe are fitted with meshing gears.

[0012] Specifically, the cleaning mechanism includes a second electric cylinder installed inside the transverse box. The bottom of the transverse box is open, and a movable plate is slidably connected to the inner wall of the transverse box. The telescopic rod of the second electric cylinder is connected to the movable plate, and a vertical rod is fixed to the bottom of the movable plate. A cleaning brush that contacts the suction head is provided on the vertical rod.

[0013] The beneficial effects of this utility model are:

[0014] This invention achieves flexible planning of dredging operation paths by coordinating the longitudinal movement of the tracked vehicle, the lateral scanning of the lateral movement mechanism, and the rotation of the suction head. This greatly expands the coverage of a single operation, avoids missed areas in straight-line dredging, and makes dredging more thorough and efficient.

[0015] This invention features a cleaning mechanism driven by a second electric cylinder, which uses a cleaning brush to scrape the screen of the suction head. This mechanism can be activated during or intermittent sludge removal, effectively removing debris adhering to the screen, preventing screen blockage, ensuring the continuity and stability of the sludge removal process, and reducing maintenance frequency and labor intensity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the depth adjustment mechanism of this utility model;

[0019] In the diagram: 1-tracked vehicle; 2-sludge removal box; 3-sludge suction pump; 4-first sludge conveying pipe; 5-second sludge conveying pipe; 6-sludge suction pipe; 7-sludge suction head; 8-support base; 9-first electric cylinder; 10-lifting box; 11-reinforcing plate; 12-guide rail; 13-lead screw; 14-lateral movement box; 15-bearing seat; 16-second motor; 17-gear; 18-second electric cylinder; 19-moving plate; 20-upright pole; 21-cleaning brush;

[0020] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] like Figures 1-3 As shown, a wetland unit bottom sediment dredging device includes a tracked vehicle 1 and a dredging box 2 mounted on the tracked vehicle 1. The dredging box 2 has a built-in discharge port for periodically discharging sediment. A depth adjustment mechanism is provided on the front end face of the dredging box 2. The depth adjustment mechanism includes a support base 8 located on the front end face of the dredging box 2, a first electric cylinder 9 installed within the support base 8, and a lifting box 10 installed at the bottom of the telescopic rod of the first electric cylinder 9. A lateral movement mechanism is installed within the lifting box 10. A reinforcing plate 11 is provided between the bottom of the telescopic rod of the first electric cylinder 9 and the lifting box 10, enhancing the connection rigidity between the lifting box 10 and the telescopic rod of the electric cylinder, preventing swaying or deformation under complex stress, and improving stability. Guide rails 12 are provided on both sides of the front end face of the dredging box 2, and the lifting box 10 is slidably connected to the guide rails 12. The guide rails 12 provide precise guidance for the vertical movement of the lifting box 10, ensuring the smoothness and verticality of the lifting process and avoiding skewing.

[0023] The depth adjustment mechanism has a horizontal movement mechanism at its bottom. This mechanism includes a lead screw 13 rotatably connected between the inner walls of the lifting box 10 on both sides, a first motor installed inside the lifting box 10 to drive the lead screw 13, a sliding sleeve slidably connected to the inner wall of the lifting box 10 and threadedly connected to the lead screw 13, and a horizontal movement box 14 fixed to the sliding sleeve. The horizontal movement box 14 slides along the front end face of the lifting box 10, and the front end face of the lifting box 10 has a slot corresponding to the sliding sleeve. The lead screw and nut transmission method ensures the accuracy and self-locking of the horizontal movement box 14, enabling precise control of the horizontal position of the suction head 7.

[0024] A suction pump 3 is installed on the top of the sludge removal box 2. The outlet of the suction pump 3 is connected to a first sludge conveying pipe 4, which is connected to the sludge removal box 2. A second sludge conveying pipe 5 (using a flexible hose for easy raising and lowering of the suction pipe 6) is connected to the inlet of the second sludge conveying pipe 5. The suction pipe 6 is rotatably connected to the bottom of the second sludge conveying pipe 5. A rotating mechanism for driving the suction pipe 6 is installed on the transverse moving mechanism 14. Several bearing seats 15 are installed on the front end of the transverse moving box 14. The suction pipe 6 is rotatably connected to the bearing seats 15 via bearings, providing stable rotational support for the suction pipe 6. The rotating mechanism includes a second motor 16 installed on the top of the transverse moving box 14. Gears 17 meshing with each other are installed on the main shaft of the second motor 16 and the outer wall of the suction pipe 6. The suction pipe 6 is driven to rotate via gear transmission. This simple structure and reliable transmission allow the suction head 7 to rotate within a 360-degree range, greatly enhancing the flexibility of sludge removal.

[0025] A suction head 7 with a screen is detachably installed at the bottom of the suction pipe 6. The suction head 7 is detachably installed at the bottom of the suction pipe 6 via a flange or thread. A cleaning mechanism to prevent clogging of the suction head 7 is provided on the transverse movement mechanism. The cleaning mechanism is installed on the transverse movement box 14 and includes a second electric cylinder 18 installed inside the transverse movement box 14. The bottom of the transverse movement box 14 is open, and a movable plate 19 is slidably connected to the inner wall of the transverse movement box 14. The extension rod of the second electric cylinder 18 is connected to the movable plate 19. A vertical rod 20 is fixed to the bottom of the movable plate 19, and a cleaning brush 21 that contacts the suction head 7 is provided on the vertical rod 20. When the pump pressure is abnormal or the cleaning mechanism is triggered at a set time, the second electric cylinder 18 pushes the movable plate 19 and the cleaning brush 21 downwards, causing the cleaning brush 21 to press tightly against the screen surface of the suction head 7. Subsequently, through the rotation of the suction pipe 6 or the slight movement of the cleaning brush 21 itself, the debris attached to the screen can be scraped off, achieving automatic unclogging and effectively ensuring the continuity of operation.

[0026] In operation, the tracked vehicle 1 moves to the target wetland unit. First, the height of the lifting box 10 is adjusted by the first electric cylinder 9, thereby lowering the suction head 7 to a suitable sludge removal depth. Then, the suction pump 3 is started to begin suctioning sludge. During the sludge removal process, the first motor can be started to drive the transverse box 14 to move laterally, while the second motor 16 is started to drive the suction pipe 6 and the suction head 7 to rotate slowly. This combined "lateral movement + rotation" motion makes the working trajectory of the suction head 7 fan-shaped or spiral-shaped, covering a wider area on both sides of the track, removing sludge without dead angles, and significantly increasing efficiency compared to single linear suction. When the system detects an increase in the pressure of the suction pump 3 or at a preset time interval, the cleaning mechanism can be activated: the second electric cylinder 18 pushes the cleaning brush 21 down to contact the screen, and the rotation of the suction pipe 6 drives the suction head 7 to move relative to the cleaning brush 21, thereby scraping away blockages. After cleaning is completed, the cleaning brush 21 is lifted, and the sludge removal operation continues. This invention can effectively prevent the suction head 7 from clogging and enable more flexible dredging operations, thereby improving the efficiency and reliability of wetland dredging operations.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A wetland unit bottom sediment dredging device, comprising a tracked vehicle (1) and a dredging box (2) mounted on the tracked vehicle (1), characterized in that, The front end of the sludge removal box (2) is provided with a depth adjustment mechanism, and the bottom of the depth adjustment mechanism is provided with a horizontal movement mechanism. The top of the sludge removal box (2) is equipped with a sludge suction pump (3). The outlet of the sludge suction pump (3) is provided with a first sludge conveying pipe (4) connected to the sludge removal box (2), and the inlet is connected with a second sludge conveying pipe (5). The bottom of the second sludge conveying pipe (5) is rotatably connected with a sludge suction pipe (6). The horizontal movement mechanism is provided with a rotating mechanism to drive the sludge suction pipe (6) to rotate. The bottom of the sludge suction pipe (6) is detachably equipped with a sludge suction head (7) with a screen, and the horizontal movement mechanism is provided with a cleaning mechanism to prevent the sludge suction head (7) from being blocked.

2. The wetland unit bottom sediment dredging device according to claim 1, characterized in that, The depth adjustment mechanism includes a support base (8) set on the front end of the sludge removal box (2), a first electric cylinder (9) installed in the support base (8), and a lifting box (10) installed at the bottom of the telescopic rod of the first electric cylinder (9). The transverse movement mechanism is installed in the lifting box (10). A reinforcing plate (11) is provided between the bottom of the telescopic rod of the first electric cylinder (9) and the lifting box (10).

3. The wetland unit bottom sediment dredging device according to claim 2, characterized in that, The front end of the sludge removal box (2) is provided with guide rails (12) on both sides, and the lifting box (10) is slidably connected to the guide rails (12).

4. The wetland unit bottom sediment dredging device according to claim 2, characterized in that, The transverse mechanism includes a lead screw (13) rotatably connected between the inner walls of the two sides of the lifting box (10), a first motor installed in the lifting box (10) to drive the lead screw (13) to rotate, a sliding sleeve slidably connected to the inner wall of the lifting box (10) and threadedly connected to the lead screw (13), and a transverse box (14) fixed on the sliding sleeve. The transverse box (14) slides along the front end face of the lifting box (10), and the front end face of the lifting box (10) is provided with a slot corresponding to the sliding sleeve. The rotation mechanism and the cleaning mechanism are installed on the transverse box (14).

5. A wetland unit bottom sediment dredging device according to claim 4, characterized in that, Several bearing seats (15) are installed on the front end face of the transverse box (14), and the sludge suction pipe (6) is rotatably connected to the bearing seats (15) through the bearings.

6. A wetland unit bottom sediment dredging device according to claim 4, characterized in that, The rotating mechanism includes a second motor (16) mounted on the top of the transverse box (14), and gears (17) meshing with each other are mounted on the main shaft of the second motor (16) and the outer wall of the sludge suction pipe (6).

7. A wetland unit bottom sediment dredging device according to claim 4, characterized in that, The cleaning mechanism includes a second electric cylinder (18) installed in a transverse box (14). The bottom of the transverse box (14) is open, and a movable plate (19) is slidably connected to the inner wall of the transverse box (14). The telescopic rod of the second electric cylinder (18) is connected to the movable plate (19). A vertical rod (20) is fixed to the bottom of the movable plate (19), and a cleaning brush (21) that contacts the suction head (7) is provided on the vertical rod (20).

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