A mud sampling device for a trailing suction hopper dredger

Abstract

The utility model relates to the harrow suction ship accessory technical field, concretely is a kind of mud sampling device for harrow suction ship, including harrow head, the surface rotation of harrow head is connected with harrow claw, the surface rotation of harrow head is connected with first waterproof electric push rod, the output end of first waterproof electric push rod is connected with mounting plate rotation, the harrow head is fixedly connected with drain pipe, one end of drain pipe is fixedly connected with folding pipe, the lower end of folding pipe is fixedly connected with hollow plate, the lower surface of hollow plate is fixedly connected with several spray heads, the surface of harrow head is fixedly connected with second waterproof electric push rod.The utility model, by setting second waterproof electric push rod, hollow plate, folding pipe and spray head, when carrying out mud sampling excavation, the distance between spray head and seabed can be adjusted according to seabed topography or soil hardness, ensure the soil breaking efficiency and construction adaptability of harrow suction ship, improve the practicability of harrow suction ship.

Description

Technical Field

[0001] This utility model relates to the technical field of trailing suction hopper dredger accessories, and in particular to a mud sampling device for trailing suction hopper dredgers. Background Technology

[0002] A trailing suction hopper dredger is a type of dredger that uses a draghead located on the sides or stern of the hull to break up mud when it is necessary to sample or collect mud. The ship is equipped with centrifugal pumps that suck up water and mud from the seabed and discharge them into the mud bin. Once the mud bin is full, the ship raises the draghead and sails to the mud dumping area to open the mud gate to unload the mud, or directly discharges the dredged mud overboard.

[0003] In the prior art, such as the trailing suction hopper dredger with publication number CN223107310U, the patent document includes a hull with a mud storage bin on the hull. Dredging devices are installed on both the left and right sides of the hull. The dredging devices include a rake head mechanism, which is connected to the mud storage bin of the hull through a suction pipe. The rake head mechanism includes a main rake head, which is rotatably supported on a rake arm. An inlet manifold is fixed on the rake arm. The outlet of the inlet manifold is connected to an outlet hose. The outlet hose includes a front water supply hose and a rear water supply hose. The front water supply hose is connected to an inlet pipe, which is connected to a transverse water intake pipe and a longitudinal water intake pipe. The transverse and longitudinal water intake pipes are interconnected and arranged alternately under the main rake head. A front row of high-pressure nozzles is connected to the transverse water intake pipe, and each longitudinal high-pressure nozzle is connected to the longitudinal water intake pipe. A rake tooth assembly is also installed on the main rake head.

[0004] However, during the dredging and sampling process of the trailing suction hopper dredger, the position of the high-pressure nozzle can only be adjusted simultaneously while adjusting the rake tooth assembly. Therefore, it is difficult to adaptively adjust the distance between the high-pressure nozzle and the seabed as needed, which affects the soil breaking efficiency and construction adaptability of the trailing suction hopper dredger and reduces its practicality.

[0005] Therefore, a mud sampling device for trailing suction hopper dredgers is proposed. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the difficulty in adaptively adjusting the distance between the high-pressure nozzle and the seabed as needed, which affects the soil breaking efficiency and construction adaptability of the trailing suction hopper dredger, and to propose a mud sampling device for the trailing suction hopper dredger.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a mud sampling device for a trailing suction hopper, comprising a rake head, rake claws rotatably connected to the surface of the rake head, a first waterproof electric actuator rotatably connected to the surface of the rake head, the output end of the first waterproof electric actuator rotatably connected to a mounting plate, a drain pipe fixedly connected inside the rake head, a folded pipe fixedly connected to one end of the drain pipe, a hollow plate fixedly connected to the lower end of the folded pipe, a plurality of nozzles fixedly connected to the lower surface of the hollow plate, and a second waterproof electric actuator fixedly connected to the surface of the rake head, the output end of the second waterproof electric actuator being fixedly connected to the hollow plate.

[0008] The effects achieved by the above components are as follows: by setting up a second waterproof electric actuator, hollow plate, folded pipe and nozzle, the distance between the nozzle and the seabed can be adjusted according to the seabed topography or soil hardness during mud sampling and excavation, ensuring the soil breaking efficiency and construction adaptability of the trailing suction hopper, and improving the practicality of the trailing suction hopper.

[0009] Preferably, a transmission rod slides through the rake head, and the transmission rod is fixedly connected to the hollow plate.

[0010] The effect achieved by the above components is that when the hollow plate moves up and down, it will drive the transmission rod to slide synchronously. The transmission rod can guide the movement of the hollow plate, prevent the hollow plate from deviating during the movement, and ensure that the nozzle always maintains a stable water spray direction.

[0011] Preferably, a positioning plate is fixedly connected to one end of the transmission rod.

[0012] The effect achieved by the above components is that the positioning plate can prevent the transmission rod from slipping out of the rake head, ensuring the safety of the component operation.

[0013] Preferably, a circular sleeve is fixedly connected to the upper surface of the hollow plate, and the folded tube is located inside the circular sleeve.

[0014] The effect achieved by the above components is that the round sleeve can protect the folded tube, prevent the folded tube from being hit by external collisions or mud abrasion during the operation of the device, and extend its service life.

[0015] Preferably, a filter plate is fixedly connected inside the rake head.

[0016] The effect achieved by the above components is that the filter plate filters the mud, intercepts larger particles such as stones in the mud, and prevents them from clogging the subsequent sampling channels.

[0017] Preferably, an adjusting plate is slidably passed through the rake head, the adjusting plate is slidably connected to the filter plate, and a third waterproof electric actuator is fixedly connected to the surface of the rake head, the output end of the third waterproof electric actuator being fixedly connected to the adjusting plate.

[0018] The effect achieved by the above components is as follows: if it is necessary to adjust the filtration accuracy according to the impurity content in the mud, the third waterproof electric actuator can be activated. When the output end of the third waterproof electric actuator extends or retracts, it will drive the adjustment plate fixedly connected to it to slide inside the rake head. The sliding process of the adjustment plate will change the effective filtration area of ​​the filter plate, thereby adapting to the filtration needs under different working conditions.

[0019] Preferably, a bending plate is rotatably connected to the side wall of the rake head, a protective plate is fixedly connected to the surface of the bending plate, and a cylindrical block is fixedly connected to the surface of the rake head, with the cylindrical block abutting against the surface of the bending plate.

[0020] The effect achieved by the above components is that the cylindrical block abuts against the surface of the bending plate, which can limit the position of the bending plate, thereby enabling the protective plate to stably block the rake claw.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, by setting a second waterproof electric actuator, a hollow plate, a folded pipe, and a nozzle, the distance between the nozzle and the seabed can be adjusted according to the seabed topography or soil hardness during mud sampling and excavation, ensuring the soil breaking efficiency and construction adaptability of the trailing suction hopper, and improving the practicality of the trailing suction hopper. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the rake head of this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the drainage pipe of this utility model;

[0026] Figure 4 This is a schematic diagram of the filter plate structure of this utility model.

[0027] Legend: 1. Rake head; 2. Mounting plate; 3. Rake claw; 4. First waterproof electric actuator; 5. Drain pipe; 6. Folded pipe; 7. Hollow plate; 8. Sprayer head; 9. Second waterproof electric actuator; 10. Conductor rod; 11. Positioning plate; 12. Circular sleeve; 13. Filter plate; 14. Adjusting plate; 15. Third waterproof electric actuator; 16. Bending plate; 17. Protective plate; 18. Cylindrical block. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0030] like Figures 1-4 As shown, this utility model provides a mud sampling device for a trailing suction hopper dredger, including a rake head 1, with rake claws 3 rotatably connected to the surface of the rake head 1, and a first waterproof electric actuator 4 rotatably connected to the surface of the rake head 1. The output end of the first waterproof electric actuator 4 is rotatably connected to a mounting plate 2. A drain pipe 5 is fixedly connected inside the rake head 1, and one end of the drain pipe 5 is fixedly connected to a folded pipe 6. The lower end of the folded pipe 6 is fixedly connected to a hollow plate 7, and a plurality of nozzles 8 are fixedly connected to the lower surface of the hollow plate 7. A second waterproof electric actuator 9 is fixedly connected to the surface of the rake head 1, and the output end of the second waterproof electric actuator 9 is fixedly connected to the hollow plate 7. By setting the second waterproof electric actuator 9, the hollow plate 7, the folded pipe 6, and the nozzles 8, the distance between the nozzles 8 and the seabed can be adjusted according to the seabed topography or soil hardness during mud sampling and excavation, ensuring the soil breaking efficiency and construction adaptability of the trailing suction hopper dredger, and improving the practicality of the trailing suction hopper dredger.

[0031] A guide rod 10 slides through the rake head 1. The guide rod 10 is fixedly connected to the hollow plate 7. When the hollow plate 7 moves up and down, it drives the guide rod 10 to slide synchronously. The guide rod 10 can guide the movement of the hollow plate 7, preventing the hollow plate 7 from deviating during movement and ensuring that the nozzle 8 always maintains a stable water spray direction. One end of the guide rod 10 is fixedly connected to a positioning plate 11. The positioning plate 11 can prevent the guide rod 10 from slipping out of the rake head 1, ensuring the safety of the component operation. A circular sleeve 12 is fixedly connected to the upper surface of the hollow plate 7. The folded tube 6 is located inside the circular sleeve 12. The circular sleeve 12 can protect the folded tube 6, preventing the folded tube 6 from being hit by external collisions or mud wear during the operation of the device, thus extending its service life.

[0032] A filter plate 13 is fixedly connected inside the rake head 1. The filter plate 13 filters the mud, intercepting larger particles such as stones to prevent them from clogging the subsequent sampling channel. An adjusting plate 14 slides through the rake head 1, and the adjusting plate 14 is slidably connected to the filter plate 13. A third waterproof electric actuator 15 is fixedly connected to the surface of the rake head 1. The output end of the third waterproof electric actuator 15 is fixedly connected to the adjusting plate 14. If it is necessary to adjust the filtration accuracy according to the impurity content in the mud, the third waterproof electric actuator 15 can be activated. When the output end of the third waterproof electric actuator 15 extends or retracts, it will... The adjusting plate 14, which is fixedly connected to the rake head 1, slides inside the rake head 1. The sliding process of the adjusting plate 14 changes the effective filtration area of ​​the filter plate 13, thereby adapting to the filtration requirements under different working conditions. A bending plate 16 is rotatably connected to the side wall of the rake head 1. A protective plate 17 is fixedly connected to the surface of the bending plate 16. A cylindrical block 18 is fixedly connected to the surface of the rake head 1. The cylindrical block 18 abuts against the surface of the bending plate 16. The cylindrical block 18 abuts against the surface of the bending plate 16, which can limit the position of the bending plate 16, thereby enabling the protective plate 17 to stably block the rake claw 3.

[0033] The overall working principle is as follows: before mud sampling and excavation, the angle of the rake claw 3 is adjusted by the first waterproof electric actuator 4 according to the seabed soil conditions and sampling requirements of the sampling area. When the output end of the first waterproof electric actuator 4 extends and retracts, it will drive the mounting plate 2 rotatably connected to it to move, thereby driving the rake claw 3 rotatably connected to the surface of the rake head 1 to rotate around the connection point until the rake claw 3 is at a suitable angle for digging and gathering mud, thus preparing for subsequent mud collection.

[0034] During the mud sampling and dredging operation, water from the water storage system on the trailing suction hopper is delivered to the drain pipe 5. The water flows through the drain pipe 5 into the fixedly connected folded pipe 6, and then through the folded pipe 6 to the hollow plate 7 below. Finally, it is evenly sprayed out by several nozzles 8 on the lower surface of the hollow plate 7. The sprayed water can wash and break up the seabed mud, turning the lumpy mud into mud that is easy to suck up.

[0035] During water spraying, if it is necessary to adjust the distance between the nozzle 8 and the seabed according to the seabed topography or soil hardness, the second waterproof electric actuator 9 can be activated. When the output end of the second waterproof electric actuator 9 extends or retracts, it will directly drive the hollow plate 7 to move. While the hollow plate 7 moves, it will pull the folded tube 6 to extend or retract (the folded tube 6 can flexibly deform with the movement of the hollow plate 7 to ensure stable water flow). In addition, when the hollow plate 7 moves up and down, it will drive the transmission rod 10 to slide synchronously. The transmission rod 10 can guide the movement of the hollow plate 7 to prevent the hollow plate 7 from deviating during the movement, ensuring that the nozzle 8 always maintains a stable water spray direction. At the same time, the positioning plate 11 can prevent the transmission rod 10 from slipping out of the rake head 1, ensuring the safety of the component operation. The round sleeve 12 can protect the folded tube 6, preventing the folded tube 6 from being hit by external collisions or mud wear during the operation of the device, thus extending its service life.

[0036] After the mud is washed and formed, the rake claws 3 will gather the mud to the vicinity of the rake head 1. The mud will then enter the interior of the rake head 1. The protective plate 17 will be pressed against the seabed, and the bending plate 16 will disengage from the cylindrical block 18. At this time, the filter plate 13 will filter the mud, intercepting larger particles such as stones in the mud to prevent them from clogging the subsequent sampling channel. If it is necessary to adjust the filtration accuracy according to the impurity content in the mud, the third waterproof electric actuator 15 can be activated. When the output end of the third waterproof electric actuator 15 extends or retracts, it will drive the adjusting plate 14, which is fixedly connected to it, to slide inside the rake head 1. The sliding process of the adjusting plate 14 will change the effective filtration area of ​​the filter plate 13, thereby adapting to the filtration requirements under different working conditions.

[0037] After sampling is completed, the rake claw 3 can be reset by the first waterproof electric actuator 4. At this time, the cylindrical block 18 abuts against the surface of the bending plate 16, which can limit the position of the bending plate 16, thereby enabling the protective plate 17 to stably block the rake claw 3.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mud sampling device for a trailing suction hopper dredger, characterized in that: The device includes a rake head (1), on the surface of which a rake claw (3) is rotatably connected. A first waterproof electric actuator (4) is rotatably connected to the surface of the rake head (1). The output end of the first waterproof electric actuator (4) is rotatably connected to a mounting plate (2). A drain pipe (5) is fixedly connected inside the rake head (1). One end of the drain pipe (5) is fixedly connected to a folded pipe (6). The lower end of the folded pipe (6) is fixedly connected to a hollow plate (7). Several nozzles (8) are fixedly connected to the lower surface of the hollow plate (7). A second waterproof electric actuator (9) is fixedly connected to the surface of the rake head (1). The output end of the second waterproof electric actuator (9) is fixedly connected to the hollow plate (7).

2. The mud sampling device for a trailing suction hopper dredger according to claim 1, characterized in that: A guide rod (10) slides through the rake head (1), and the guide rod (10) is fixedly connected to the hollow plate (7).

3. A mud sampling device for a trailing suction hopper dredger according to claim 2, characterized in that: A positioning plate (11) is fixedly connected to one end of the transmission rod (10).

4. A mud sampling device for a trailing suction hopper dredger according to claim 1, characterized in that: A circular sleeve (12) is fixedly connected to the upper surface of the hollow plate (7), and the folded tube (6) is located inside the circular sleeve (12).

5. A mud sampling device for a trailing suction hopper dredger according to claim 1, characterized in that: A filter plate (13) is fixedly connected inside the rake head (1).

6. A mud sampling device for a trailing suction hopper dredger according to claim 5, characterized in that: An adjusting plate (14) slides through the rake head (1), and the adjusting plate (14) is slidably connected to the filter plate (13). A third waterproof electric actuator (15) is fixedly connected to the surface of the rake head (1), and the output end of the third waterproof electric actuator (15) is fixedly connected to the adjusting plate (14).

7. A mud sampling device for a trailing suction hopper dredger according to claim 1, characterized in that: The side wall of the rake head (1) is rotatably connected to a bending plate (16), the surface of the bending plate (16) is fixedly connected to a protective plate (17), and the surface of the rake head (1) is fixedly connected to a cylindrical block (18), which abuts against the surface of the bending plate (16).

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