Trailing suction dredger dredging device with multiple cleaning structures

Abstract

The utility model discloses a trailing suction dredger dredging device with multiple cleaning structures, which comprises an outer cover body with a square structure, a conveying pipe communicated with the outer cover body is fixedly mounted on the upper surface of the outer cover body, a connecting arm connected with a trailing suction dredger is mounted on the upper surface of the outer cover body, and an excavating roller is rotatably mounted at a hollow position below the outer cover body. A power box is fixedly installed on the side face of the outer cover body and drives the digging roller to rotate through a transmission belt. A longitudinally arranged filter plate is fixedly mounted in the outer cover body, and a cleaning scraper for cleaning the surface is rotationally mounted on the outer surface of the filter plate. According to the drag suction dredger dredging device with the multiple cleaning structures, the novel structural design is adopted, water in a river channel is sucked into the water storage tank through the pressure pump, the water is sprayed out through the flushing pipe connected with the water storage tank when needed, the surface of the filter plate is flushed under the action of water flow, and the better cleaning effect on the filter plate can be achieved in cooperation with the cleaning scraper.

Description

Technical Field

[0001] This utility model relates to the field of trailing suction hopper dredging technology, specifically a trailing suction hopper dredging device with multiple cleaning structures. Background Technology

[0002] A trailing suction hopper dredging vessel is a specialized piece of equipment used for dredging operations. It is mainly used to transport silt from river channels and is usually used in conjunction with other vessels to excavate and transport silt from river channels to achieve the purpose of cleaning.

[0003] In the prior art, Chinese patent application number CN202323054173.5 discloses a dredging device for a trailing suction hopper dredger, including a sludge collection box. The top of the sludge collection box is connected to a sludge collection pipe. A filter screen is fixedly connected between the top and bottom of the inner wall of the sludge collection box. A blockage clearing mechanism is provided between the filter screen and the sludge collection box. The blockage clearing mechanism includes an installation pipe, which is fixedly connected to the filter screen. A connecting rod is rotatably connected to the inner wall of the installation pipe. One end of the connecting rod passes through the installation pipe and extends to the outside of the installation pipe. This utility model relates to the field of dredging engineering technology. Through the cooperation of the blockage clearing mechanism and the triggering mechanism, when the filter screen is severely blocked, the control switch triggers the drive component to work. The drive component drives the connecting rod to rotate. The rotation of the connecting rod drives the blockage clearing brush to rotate through the connecting cylinder and the installation plate to clear the blockage of the filter screen, thereby avoiding the sludge pump from running dry and ensuring sludge suction efficiency.

[0004] Based on the above materials, it can be seen that the existing trailing suction hopper dredging device needs to be used in conjunction with a filtration mechanism to avoid serious clogging. However, in actual use, as shown in the above materials, if the filter screen is only cleaned by scraper, the cleaned sludge will still accumulate inside the device, resulting in poor overall cleaning effect. Summary of the Invention

[0005] The purpose of this invention is to provide a trailing suction hopper dredging device with multiple cleaning structures to solve the problem mentioned in the background art that the cleaning effect of scraper alone is poor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a trailing suction hopper dredging device with multiple cleaning structures, comprising a square-shaped outer cover, a conveying pipe fixedly installed on the upper surface of the outer cover and communicating with it, and a connecting arm connected to the trailing suction hopper installed on the upper surface of the outer cover; a digging roller rotatably installed in the hollowed-out position below the outer cover, and a power box fixedly installed on the side of the outer cover, and the power box drives the digging roller to rotate via a transmission belt; a longitudinally arranged filter plate fixedly installed inside the outer cover, and a cleaning scraper for surface cleaning rotatably installed on the outer surface of the filter plate, and a flushing pipe for secondary cleaning is provided above the filter plate, the flushing pipe and the cleaning scraper being located on the same side; guide vanes rotatably installed on the outer surface of the filter plate, and the guide vanes are evenly spaced.

[0007] Preferably, a drive motor for rotating the cleaning scraper is fixedly installed on the outside of the filter plate, and a protective cover is provided on the outside of the drive motor to protect it.

[0008] Preferably, a water storage tank is fixedly installed on the upper surface of the outer cover, and the water storage tank is connected to the flushing pipe.

[0009] Preferably, a water inlet pipe with a filter screen is fixedly installed on the upper surface of the water storage tank, and the water inlet pipe is connected to the water storage tank through a pressure pump.

[0010] Preferably, the lower surface of the outer cover is rotatably mounted with equally spaced movable rollers.

[0011] Preferably, the guide vanes are interconnected by a connecting rod at their lower end, and the connecting rod is rotatably connected to the guide vanes. A return spring is fixedly installed between the leftmost guide vane and the filter plate.

[0012] Preferably, push plates are fixedly installed at both ends of the connecting rod, and the push plates and the cleaning scraper are pressed against each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This trailing suction hopper dredging device with multiple cleaning structures adopts a novel structural design, the specific details of which are as follows:

[0014] 1. The device is connected to the boat via the connecting arm and placed in the river. Under the action of the negative pressure equipment in the boat, the silt in the river is transported through the conveying pipe to achieve the purpose of cleaning the river. At the same time, the power box drives the digging roller to rotate through the transmission belt to dig the silt and make it transport better.

[0015] Furthermore, before the sludge is transported, it is filtered by a filter plate to remove larger impurities and prevent pipe blockage. At the same time, the drive motor inside the protective cover drives the cleaning scraper to rotate, which scrapes off the objects filtered down from the surface of the filter plate, reducing the clogging of the filter plate.

[0016] Furthermore, a pressure pump draws water from the river into a storage tank, which is then sprayed out through a flushing pipe connected to the tank when needed. The water flow washes the surface of the filter plates, and combined with a cleaning scraper, this achieves a better cleaning effect.

[0017] 2. During the rotation of the cleaning scraper, the push plate will be intermittently squeezed. Under the action of the push plate, the connecting rod drives the guide vane to rotate. Then, the guide vane is reset with the help of the return spring. In this way, the guide vane rotates back and forth, which guides the water flow sprayed from the flushing pipe, thereby expanding the flushing range. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the lower surface structure of the outer cover of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the outer casing of this utility model;

[0021] Figure 4 This is a schematic diagram showing the positional relationship between the filter plate and the cleaning pipe of this utility model;

[0022] Figure 5 This is a schematic diagram showing the positional relationship between the cleaning scraper and the filter plate of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0024] Figure 7 This is a schematic diagram of the guide vane structure of this utility model.

[0025] In the diagram: 1. Outer casing; 2. Conveying pipe; 3. Connecting arm; 4. Digging roller; 5. Power box; 6. Drive belt; 7. Filter plate; 8. Cleaning scraper; 9. Water tank; 10. Flushing pipe; 11. Water inlet pipe; 12. Pressure pump; 13. Drive motor; 14. Protective cover; 15. Moving roller; 16. Guide vane; 17. Connecting rod; 18. Push plate; 19. Return spring. Detailed Implementation

[0026] 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.

[0027] Example 1: Please refer to Figures 1-3 In order to achieve the purpose of cleaning river silt, this embodiment provides the following technical solution, which specifically discloses: a square-shaped outer cover 1, a conveying pipe 2 fixedly installed on the upper surface of the outer cover 1 and connected to it, and a connecting arm 3 connected to the trailing suction hopper is installed on the upper surface of the outer cover 1. A digging roller 4 is rotatably installed in the hollow position below the outer cover 1, and a power box 5 is fixedly installed on the side of the outer cover 1. The power box 5 drives the digging roller 4 to rotate through the transmission belt 6. A longitudinally arranged filter plate 7 is fixedly installed inside the outer cover 1, and a movable roller 15 with equal spacing is rotatably installed on the lower surface of the outer cover 1.

[0028] When using the device, first connect the outer cover 1 to the boat using the connecting arm 3, and then connect the top of the conveying pipe 2 to the negative pressure device of the boat. When cleaning is required, move the boat to the corresponding position in the river channel and then control the connecting arm 3 to place the outer cover 1 in the silt position of the river channel (the moving roller 15 under the outer cover 1 can facilitate its movement). Turn on the power box 5, and use the power box 5 to drive the digging roller 4 to rotate through the transmission belt 6. The dredged silt enters the interior of the outer cover 1 and is then transported away under the negative pressure of the conveying pipe 2. During this process, the filter plate 7 is used to filter large objects in the silt to avoid pipe blockage.

[0029] Example 2: Please refer to Figures 4-5 In order to prevent the filter plate 7 from clogging, this embodiment provides the following technical solution, which specifically discloses: a cleaning scraper 8 for cleaning the surface is rotatably installed on the outer surface of the filter plate 7, and a flushing pipe 10 for secondary cleaning is provided above the filter plate 7. The flushing pipe 10 and the cleaning scraper 8 are located on the same side. A drive motor 13 for driving the cleaning scraper 8 to rotate is fixedly installed on the outside of the filter plate 7, and a protective cover 14 is provided on the outside of the drive motor 13 to protect it. A water storage tank 9 is fixedly installed on the upper surface of the outer cover 1, and the water storage tank 9 is interconnected with the flushing pipe 10. A water inlet pipe 11 with a filter screen is fixedly installed on the upper surface of the water storage tank 9, and the water inlet pipe 11 is interconnected with the water storage tank 9 through a pressure pump 12.

[0030] During the use of the device, the drive motor 13 inside the protective cover 14 is turned on periodically. The drive motor 13 drives the cleaning scraper 8 to rotate, thereby scraping off the objects accumulated on the surface of the filter plate 7. At the same time, the pressure pump 12 is turned on to spray water from the water storage tank 9 through the flushing pipe 10 (when the device is working, water from the river enters the water storage tank 9 through the water inlet pipe 11). This, together with the cleaning scraper 8, achieves a better cleaning effect on the filter plate 7.

[0031] Example 3: Please refer to Figures 6-7 In order to expand the rinsing range, this embodiment provides the following technical solution, which specifically discloses that: a guide vane 16 is rotatably installed on the outer surface of the filter plate 7, and the guide vane 16 is evenly spaced. The guide vane 16 is connected to each other through the connecting rod 17 at its lower end, and the connecting rod 17 is rotatably connected to the guide vane 16. A reset spring 19 is fixedly installed between the leftmost guide vane 16 and the filter plate 7. Push plates 18 are fixedly installed at the left and right ends of the connecting rod 17, and the push plates 18 and the cleaning scraper 8 are pressed against each other.

[0032] During the rotation of the cleaning scraper 8, the push plate 18 is intermittently squeezed, causing the push plate 18 to drive the guide vane 16 to rotate through the connecting rod 17. Then, the elastic reset action of the reset spring 19 lowers the guide vane 16 to reset, thus causing the guide vane 16 to rotate back and forth. The guide vane 16 guides the water flow sprayed from the flushing pipe 10, thereby expanding the overall flushing range.

[0033] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drag suction ship dredging device with multiple cleaning structures, comprising a square structure of an outer cover body (1), a conveying pipe (2) is fixedly installed on the upper surface of the outer cover body (1) and communicates with the outer cover body (1), and a connecting arm (3) connected with the drag suction ship is installed on the upper surface of the outer cover body (1), characterized in that: a digging roller (4) is rotatably installed at a hollow position below the outer cover body (1), a power box (5) is fixedly installed on the side surface of the outer cover body (1), and the power box (5) drives the digging roller (4) to rotate through a transmission belt (6); a longitudinally arranged filter plate (7) is fixedly installed inside the outer cover body (1), a cleaning scraper (8) for surface cleaning is rotatably installed on the outer surface of the filter plate (7), a flushing pipe (10) for secondary cleaning of the filter plate (7) is arranged above the filter plate (7), and the flushing pipe (10) is located on the same side as the cleaning scraper (8); guide vanes (16) are rotatably installed on the outer surface of the filter plate (7), and the guide vanes (16) are uniformly arranged at equal intervals.

2. A dredging device with multiple cleaning structures for a trailing suction hopper dredger according to claim 1, characterized in that: a driving motor (13) for driving the cleaning scraper (8) to rotate is fixedly installed on the outer surface of the filter plate (7), and a protective cover (14) for protecting the driving motor (13) is arranged on the outer surface of the driving motor (13).

3. A dredging device with multiple cleaning structures for a trailing suction hopper dredger according to claim 1, characterized in that: a water storage tank (9) is fixedly installed on the upper surface of the outer cover body (1), and the water storage tank (9) and the flushing pipe (10) communicate with each other.

4. A dredging device with multiple cleaning structures for a trailing suction hopper dredger according to claim 3, characterized in that: a water inlet pipe (11) with a filter screen is fixedly installed on the upper surface of the water storage tank (9), and the water inlet pipe (11) and the water storage tank (9) communicate with each other through a pressure pump (12).

5. A dredging device with multiple cleaning structures for a trailing suction hopper dredger according to claim 1, characterized in that: movable rollers (15) arranged at equal intervals are rotatably installed on the lower surface of the outer cover body (1).

6. A dredging device with multiple cleaning structures for a trailing suction hopper dredger according to claim 1, characterized in that: the guide vanes (16) are connected with each other through connecting rods (17) at their lower ends, the connecting rods (17) are rotatably connected with the guide vanes (16), and a return spring (19) is fixedly installed between the leftmost guide vane (16) and the filter plate (7).

7. A cutter suction dredger with a multiple cleaning arrangement according to claim 6, characterized in that: pushing plates (18) are fixedly installed on the left and right ends of the connecting rods (17), and the pushing plates (18) and the cleaning scraper (8) are in mutual extrusion.

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