A surge-proof dredger

Abstract

The utility model relates to the technical field of dredgers, and provides a surge-proof dredger, comprising a hull, an operating room arranged on the hull, a walking assembly for controlling the walking of the hull installed at one end of the hull along the traveling direction, a lifting main positioning pile assembly installed on the walking assembly, a lifting auxiliary positioning pile assembly installed at the other end of the hull along the traveling direction, the lifting auxiliary positioning pile assembly and the lifting main positioning pile assembly jointly supporting the hull; a bridge frame fixing seat adjustable in horizontal angle is also movably installed on the hull, a lifting bridge frame that can be lifted vertically is installed on the bridge frame fixing seat, and a dredging device is installed at one end of the lifting bridge frame away from the bridge frame fixing seat. The utility model solves the problem that most current dredgers do not have surge-proof function, and when the dredger operates in an area with surge, the surge will produce impact force on the hull, affecting the normal operation of the dredger.

Description

Technical Field

[0001] The utility model relates to the technical field of dredgers, in particular to an anti-surge dredger. Background Art

[0002] Dredgers are responsible for clearing silt from waterways and rivers to allow other ships to pass smoothly. In addition, they are also a powerful tool for blowing sand and filling the sea.

[0003] There are various types of dredgers on the market, such as cutter suction dredgers, trailing suction dredgers, etc. However, most of the current dredgers do not have surge protection functions. When a dredger operates in an area with surges, the surges will have an impact on the hull, causing the dredger's operating area to deviate. In severe cases, it may even cause the dredger to be unable to perform normal dredging operations, affecting work progress. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a surge-proof dredger to solve the problem that most of the current dredgers do not have surge-proof function. When the dredger operates in an area with surge, the surge will produce impact force on the hull, affecting the normal operation of the dredger.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] An anti-surge dredger comprises a hull, an operation room is arranged on the hull, a walking assembly for controlling the walking of the hull is installed at one end of the hull along the traveling direction, a lifting type main positioning pile assembly is installed on the walking assembly, and a lifting type auxiliary positioning pile assembly is installed at the other end of the hull along the traveling direction, and the lifting type auxiliary positioning pile assembly and the lifting type main positioning pile assembly jointly support the hull;

[0007] The hull is also movably provided with a bridge frame fixing seat which can be adjusted at a horizontal angle, and a lifting bridge frame which can be lifted and lowered vertically is installed on the bridge frame fixing seat, and a dredging device is installed at one end of the lifting bridge frame which is away from the bridge frame fixing seat.

[0008] As an improved technical solution, the lifting auxiliary positioning pile assembly is provided with two groups and is relatively installed on both sides of the hull along the traveling direction, and a triangle structure is formed between the two groups of lifting auxiliary positioning pile assemblies and the lifting main positioning pile assembly.

[0009] As an improved technical solution, the walking assembly includes a trolley, the trolley is movably mounted on the hull, and the lifting main positioning pile assembly is mounted on the trolley;

[0010] A first pushing device is provided between the trolley and the hull, one end of the first pushing device is hingedly mounted on the hull, and the other end of the first pushing device is hingedly mounted on the trolley.

[0011] As an improved technical solution, at least two pairs of running wheels are installed on both sides of the trolley, and the running wheels are movably installed in the mounting grooves of the hull, and wear-resistant plates are provided between the running wheels and the side walls of the mounting grooves.

[0012] As an improved technical solution, the lifting main positioning pile assembly includes a first fixed sleeve and a first driving device, the first fixed sleeve and the first driving device are both installed on the trolley, the main positioning pile is provided in the sliding sleeve of the inner cavity of the first fixed sleeve, and a first rack is installed on the side of the main positioning pile close to the first driving device, and a first gear is installed on the output shaft of the first driving device, and the first gear is meshed with the first rack for transmission.

[0013] As an improved technical solution, the lifting auxiliary positioning pile assembly includes a second fixing sleeve and a second driving device, the second fixing sleeve and the second driving device are both installed on the hull, the sliding sleeve in the inner cavity of the second fixing sleeve is provided with an auxiliary positioning pile, a second rack is installed on the side of the auxiliary positioning pile close to the second driving device, a second gear is installed on the output shaft of the second driving device, and the second gear is meshed with the second rack for transmission.

[0014] As an improved technical solution, two first connecting arms are relatively installed at one end of the lifting bridge away from the dredging device, one end of the two first connecting arms is respectively fixedly installed on the lifting bridge, and the other end is respectively hingedly installed on the bridge fixing seat;

[0015] A second pushing device is also provided between the lifting bridge and the bridge fixing seat, one end of the second pushing device is hingedly installed on the bridge fixing seat, and the other end is hingedly installed on the lifting bridge.

[0016] As an improved technical solution, a second connecting arm is provided on a side of the bridge fixing seat close to the hull, and the second connecting arm is hingedly mounted on the hull;

[0017] A third pushing device is also provided between the bridge frame fixing seat and the hull. Two third pushing devices are provided and are arranged on both sides of the second connecting arm opposite to each other. One end of the two third pushing devices is hingedly installed on the bridge frame fixing seat, and the other end is hingedly installed on the hull.

[0018] As an improved technical solution, the lifting bridge adopts a cylindrical structure.

[0019] As an improved technical solution, an anemometer is installed on the top of the operating room, a control system is installed in the operating room, the anemometer data is connected to the control system, and the control system data is connected to a remote control system.

[0020] After adopting the above technical solution, the beneficial effects of the utility model are:

[0021] A traveling assembly is installed at one end of the hull along the traveling direction, a lifting main positioning pile assembly is installed on the traveling assembly, and a lifting auxiliary positioning pile assembly is installed at the other end of the hull along the traveling direction. The lifting auxiliary positioning pile assembly and the lifting main positioning pile assembly jointly support the hull and push the hull out of the water, thereby reducing the impact of surges on the hull and ensuring that the dredger can operate normally. A bridge frame fixing seat with adjustable horizontal angle is movably installed on the hull, and a lifting bridge frame that can be lifted vertically is installed on the bridge frame fixing seat. A dredging device is installed at one end of the lifting bridge frame away from the bridge frame fixing seat. The dredging depth of the dredging device can be adjusted by the lifting bridge frame, and the dredging device can also be lifted at the same time. The angle of the dredging device in the horizontal direction can be adjusted by the bridge frame fixing seat, so that the dredging device can swing left and right, so as to realize the cleaning of silt in a certain area.

[0022] There are two sets of lifting auxiliary positioning pile assemblies, which are relatively installed on both sides of the hull along the traveling direction, and form a triangular structure with the lifting main positioning pile assembly. The triangular structure design makes the hull more stable when it is pushed out of the water;

[0023] The walking assembly includes a trolley, which is movably mounted on the hull, and the lifting main positioning pile assembly is mounted on the trolley. At the same time, a first pushing device is provided between the trolley and the hull. When the lifting main positioning pile assembly is inserted into the underwater riverbed and fixed, and the lifting auxiliary positioning pile assembly is in a raised state, the hull can be pushed to move by the extension of the piston rod of the first pushing device, and the hull can be moved to other dredging areas to improve the operation efficiency.

[0024] The lifting main positioning pile assembly includes a first fixed sleeve and a first driving device. The sliding sleeve in the inner cavity of the first fixed sleeve is provided with a main positioning pile. A first rack is installed on the main positioning pile. A first gear is installed on the output shaft of the first driving device. The first gear is meshed with the first rack for transmission. The main positioning pile can be driven to rise or fall through the first driving device.

[0025] Two first connecting arms are relatively installed at one end of the lifting bridge away from the dredging device, and the two first connecting arms are respectively hingedly installed on the bridge fixing seat. At the same time, a second pushing device is provided between the lifting bridge and the bridge fixing seat. The lifting bridge can be driven to move downward or rise upward by the extension and contraction of the piston rod of the second pushing device, so as to realize the control of different dredging depths;

[0026] A second connecting arm is provided on the side of the bridge frame fixing seat close to the hull, and the second connecting arm is hingedly mounted on the hull. At the same time, a third pushing device is provided between the bridge frame fixing seat and the hull. Two third pushing devices are provided and are relatively arranged on both sides of the second connecting arm. One end of the two third pushing devices is hingedly mounted on the bridge frame fixing seat, and the other end is hingedly mounted on the hull. The bridge frame fixing seat can be pushed to swing in the horizontal direction by the extension and retraction of the piston rods of the two third pushing devices, thereby realizing the cleaning of silt in the fan-shaped area.

[0027] In summary, the utility model provides a surge-proof dredger, which solves the problem that most current dredgers do not have surge-proof function. When the dredger operates in an area with surge, the surge will produce impact force on the hull, affecting the normal operation of the dredger. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In addition, in the drawings, the components or parts are not necessarily drawn according to the actual scale.

[0029] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0030] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0031] Figure 3 It is a structural schematic diagram of the platform vehicle in the utility model;

[0032] Figure 4 It is a schematic cross-sectional structural diagram of the trolley in the utility model;

[0033] Reference numerals:

[0034] 1. Hull, 2. Operation room;

[0035] 3. Traveling assembly, 301. Trolley, 302. First pushing device, 303. Traveling wheel, 304. Mounting groove, 305. Wear-resistant plate;

[0036] 4. Liftable main positioning pile assembly, 401. first fixing sleeve, 402. first driving device, 403. main positioning pile, 404. first rack, 405. first gear;

[0037] 5. Lifting auxiliary positioning pile assembly, 501. second fixing sleeve, 502. second driving device, 503. auxiliary positioning pile, 504. second rack, 505. second gear;

[0038] 6. Bridge fixing seat, 7. Lifting bridge, 8. Dredging device, 9. First connecting arm, 10. Second pushing device, 11. Second connecting arm, 12. Third pushing device, 13. Anemometer. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0042] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0043] like Figure 1-Figure 2As shown, a surge-proof dredger comprises a hull 1, an operation room 2 is arranged on the hull 1, a walking assembly 3 for controlling the walking of the hull 1 is installed at one end of the hull 1 along the traveling direction, a lifting main positioning pile assembly 4 is installed on the walking assembly 3, and a lifting auxiliary positioning pile assembly 5 is installed at the other end of the hull 1 along the traveling direction. The lifting auxiliary positioning pile assembly 5 and the lifting main positioning pile assembly 4 jointly support the hull 1 and push the hull 1 out of the water, thereby reducing the impact of surge on the hull 1 and ensuring that the dredger can operate normally;

[0044] The hull 1 is also movably provided with a bridge fixing seat 6 with adjustable horizontal angle, and a lifting bridge 7 which can be lifted and lowered vertically is installed on the bridge fixing seat 6. A dredging device 8 is installed at one end of the lifting bridge 7 away from the bridge fixing seat 6. The dredging device 8 is common in daily life and belongs to the common knowledge of technicians in this technical field. It will not be repeated here. The dredging depth of the dredging device 8 can be adjusted by the lifting bridge 7, and the dredging device 8 can also be lifted. The angle of the dredging device 8 in the horizontal direction can be adjusted by the bridge fixing seat 6, so that the dredging device 8 can swing left and right to realize the cleaning of silt in a certain area.

[0045] like Figure 1-Figure 2 As shown, in the embodiment of the utility model, two groups of lifting auxiliary positioning pile assemblies 5 are provided, and are relatively installed on both sides of the hull 1 along the traveling direction. A triangular structure is formed between the two groups of lifting auxiliary positioning pile assemblies 5 and the lifting main positioning pile assembly 4. Through the design of the triangular structure, the hull 1 has better stability when it is pushed out of the water.

[0046] like Figure 1 , Figure 3 and Figure 4 As shown, in the embodiment of the utility model, the walking assembly 3 includes a trolley 301, the trolley 301 is movably installed on the hull 1, and the lifting main positioning pile assembly 4 is installed on the trolley 301;

[0047] A first pushing device 302 is provided between the trolley 301 and the hull 1. The first pushing device 302 can be any one of an air cylinder, an oil cylinder, and an electric cylinder. One end of the first pushing device 302 is hingedly mounted on the hull 1, and the other end is hingedly mounted on the trolley 301. The installation method of the first pushing device 302 can be an installation method in which the cylinder body is hingedly mounted on the hull 1, and the piston rod is hingedly mounted on the trolley 301, or an installation method in which the cylinder body is hingedly mounted on the trolley 301, and the piston rod is hingedly mounted on the hull 1. This installation method is not limited here. When the lifting main positioning pile assembly 4 is inserted into the underwater riverbed and fixed, and the lifting auxiliary positioning pile assembly 5 is in a raised state, the hull 1 can be pushed to move by the extension of the piston rod of the first pushing device 302, and the hull 1 can be moved to other dredging areas to improve work efficiency.

[0048] like Figure 3 and Figure 4 As shown, in the embodiment of the utility model, at least two pairs of running wheels 303 are installed on both sides of the trolley 301, and the running wheels 303 are movably installed in the mounting grooves 304 of the hull 1, and the movement stroke and position of the running wheels 303 are limited by the mounting grooves 304. A wear-resistant plate 305 is provided between the running wheel 303 and the side wall of the mounting groove 304. The wear-resistant plate 305 is provided to enhance the wear resistance of the mounting groove 304, thereby increasing the service life of the device;

[0049] In addition, a through hole for the main positioning pile 403 to pass through is also provided on the trolley 301 .

[0050] like Figure 1-Figure 2 As shown, in an embodiment of the utility model, the lifting main positioning pile assembly 4 includes a first fixing sleeve 401 and a first driving device 402. The first fixing sleeve 401 and the first driving device 402 are fixedly installed on the trolley 301 by bolts or other connection methods. The inner cavity sliding sleeve of the first fixing sleeve 401 is provided with a main positioning pile 403. A first rack 404 is fixedly installed on the side of the main positioning pile 403 close to the first driving device 402. A first gear 405 is installed on the output shaft of the first driving device 402. The first gear 405 is meshed with the first rack 404 for transmission. Therefore, the first driving device 402 can drive the main positioning pile 403 to rise or fall through the first gear 405 and the first rack 404, so as to insert the main positioning pile 403 into the underwater riverbed or pull it out from the underwater riverbed.

[0051] like Figure 1-Figure 2 As shown, in an embodiment of the utility model, the lifting auxiliary positioning pile assembly 5 includes a second fixing sleeve 501 and a second driving device 502. The second fixing sleeve 501 and the second driving device 502 are fixedly installed on the hull 1 by bolts or other connection methods. The inner cavity sliding sleeve of the second fixing sleeve 501 is provided with an auxiliary positioning pile 503. A second rack 504 is fixedly installed on the side of the auxiliary positioning pile 503 close to the second driving device 502. A second gear 505 is installed on the output shaft of the second driving device 502. The second gear 505 is meshed with the second rack 504 for transmission. Therefore, the second driving device 502 can drive the auxiliary positioning pile 503 to rise or fall through the second gear 505 and the second rack 504, so as to insert the auxiliary positioning pile 503 into the underwater riverbed or pull it out from the underwater riverbed.

[0052] In this embodiment, the first driving device 402 and the second driving device 502 can be any one of a hydraulic motor and a driving motor.

[0053] like Figure 1 and Figure 2As shown, in the embodiment of the utility model, two first connecting arms 9 are relatively installed at one end of the lifting bridge 7 away from the dredging device 8, one end of the two first connecting arms 9 is respectively fixedly installed on the lifting bridge 7, and the other end is respectively hingedly installed on the bridge fixing seat 6, so that the lifting bridge 7 can move in the vertical direction through the hinged connection;

[0054] A second pushing device 10 is also provided between the lifting bridge 7 and the bridge fixing seat 6. One end of the second pushing device 10 is hingedly mounted on the bridge fixing seat 6, and the other end is hingedly mounted on the lifting bridge 7. The second pushing device 10 and the third pushing device 12 can adopt any one of a pneumatic cylinder, an oil cylinder, and an electric cylinder. The lifting bridge 7 can be driven to move downward or rise upward by the extension and retraction of the piston rod of the second pushing device 10, thereby realizing the control of different dredging depths.

[0055] like Figure 1-Figure 2 As shown, in the embodiment of the utility model, a second connecting arm 11 is fixedly installed on one side of the bridge frame fixing seat 6 close to the hull 1, and the second connecting arm 11 is hingedly installed on the hull 1. In this embodiment, two second connecting arms 11 are also provided, which are respectively arranged at the top and bottom of the bridge frame fixing seat 6 in the vertical direction. The bridge frame fixing seat 6 can be angularly swung in the horizontal direction through the hinged connection;

[0056] A third pushing device 12 is also provided between the bridge frame fixing seat 6 and the hull 1. Two third pushing devices 12 are provided and are relatively arranged on both sides of the second connecting arm 11. One end of the two third pushing devices 12 is hingedly installed on the bridge frame fixing seat 6, and the other end is hingedly installed on the hull 1. The bridge frame fixing seat 6 can be pushed to swing in the horizontal direction through the extension and retraction of the piston rods of the two third pushing devices 12, thereby realizing the cleaning of silt in the fan-shaped area. The operating state of the two third pushing devices 12 is that one pushing device is extended and the other pushing device is contracted, thereby realizing the horizontal angle swing of the bridge frame fixing seat 6.

[0057] like Figure 1-Figure 2 As shown, in the embodiment of the utility model, the lifting bridge 7 adopts a cylindrical structure. Through the cylindrical structure design, the lateral impact force of the surge on the bridge can be reduced, and the shaking of the bridge can be reduced.

[0058] like Figure 1As shown, in the embodiment of the utility model, a wind speed and wind direction meter 13 is installed on the top of the operating room 2, and a control system is installed in the operating room 2. The control system is common in daily life and belongs to the common knowledge of technicians in this technical field. It will not be repeated here. The control system can adopt a PLC controller, and the wind speed and wind direction meter 13 data is connected to the control system. The wind speed and wind direction meter 13 can detect the wind force in the operating area, and the detected data is transmitted to the control system, and the control system controls the operation state of the anti-surge dredger. Generally, when the detected wind force and waves exceed the set value, the main positioning pile 403 and the auxiliary positioning pile 503 will be pulled out from underwater, so that the hull 1 is in a floating state, and the propeller is used to push it back to the port and dock to ensure the safety of the staff. The control system data is connected to the remote control system, and the remote control system adopts a 2.4G remote control system. By setting the remote control system, the operator can remotely control the anti-surge dredger.

[0059] For ease of understanding, the working process of this embodiment is given below:

[0060] like Figure 1-Figure 4 As shown, when the anti-surge dredger arrives at the dredging area, the first driving device 402 operates, and drives the main positioning pile 403 to move downward through the first gear 405 and the first rack 404, and inserts into the underwater riverbed. At the same time, the second driving device 502 operates synchronously, and drives the auxiliary positioning pile 503 to move downward synchronously through the second gear 505 and the second rack 504, and also inserts into the underwater riverbed. When two auxiliary positioning piles 503 and one main positioning pile 403 are inserted into the underwater riverbed, the first driving device 402 and the second driving device 502 continue to operate, so that the anti-surge dredger moves upward and leaves the water surface for a certain distance. After that, the first driving device 402 and the second driving device 502 stop operating, so that the anti-surge dredger is in a suspended support state, thereby playing a role in preventing surge impact;

[0061] When dredging and desilting is performed, the second pushing device 10 operates and pushes the lifting bridge 7 to move downward, so that the dredging device 8 contacts the bottom mud, and the dredging device 8 performs the dredging operation. After that, the two third pushing devices 12 operate. When one of the third pushing devices 12 is extended, the other third pushing device 12 contracts, so that the bridge fixing seat 6 swings in the horizontal direction, thereby achieving dredging and desilting of different areas. When the surface mud is cleaned, the second pushing device 10 continues to operate and pushes the lifting bridge 7 to continue to move downward, and repeats the above actions to achieve the cleaning of mud at different depths.

[0062] When the dredging depth reaches the requirement, the first driving device 402 and the second driving device 502 rotate in opposite directions synchronously, so that the hull 1 descends to the water surface and is in a floating state. After that, the second driving device 502 continues to rotate in the opposite direction and lifts the auxiliary positioning piles 503 out of the underwater riverbed. After that, the first pushing device 302 runs to push the hull 1 forward a certain distance relative to the main positioning piles 403, and dredging operations can be carried out again.

[0063] In summary, the utility model provides a surge-proof dredger, which solves the problem that most current dredgers do not have a surge-proof function. When the dredger operates in an area with surges, the surges will produce impact force on the hull, affecting the normal operation of the dredger.

[0064] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A surge-proof dredger, characterized in that: It comprises a hull, an operation room is arranged on the hull, a walking assembly for controlling the walking of the hull is installed at one end of the hull along the traveling direction, a lifting type main positioning pile assembly is installed on the walking assembly, and a lifting type auxiliary positioning pile assembly is installed at the other end of the hull along the traveling direction, and the lifting type auxiliary positioning pile assembly and the lifting type main positioning pile assembly jointly support the hull; The hull is also movably provided with a bridge frame fixing seat which can be adjusted at a horizontal angle, and a lifting bridge frame which can be lifted and lowered vertically is installed on the bridge frame fixing seat, and a dredging device is installed at one end of the lifting bridge frame which is away from the bridge frame fixing seat.

2. The surge-proof dredger according to claim 1, characterized in that: The lifting auxiliary positioning pile components are provided with two groups and are relatively installed on both sides of the hull along the traveling direction. The two groups of lifting auxiliary positioning pile components and the lifting main positioning pile components form a triangle structure.

3. The surge-proof dredger according to claim 1, characterized in that: The walking assembly includes a trolley, the trolley is movably mounted on the hull, and the lifting main positioning pile assembly is mounted on the trolley; A first pushing device is provided between the trolley and the hull, one end of the first pushing device is hingedly mounted on the hull, and the other end of the first pushing device is hingedly mounted on the trolley.

4. The surge-proof dredger according to claim 3, characterized in that: At least two pairs of running wheels are installed on both sides of the trolley. The running wheels are movably installed in the installation grooves of the hull respectively, and wear-resistant plates are provided between the running wheels and the side walls of the installation grooves.

5. The surge-proof dredger according to claim 3, characterized in that: The lifting main positioning pile assembly includes a first fixing sleeve and a first driving device, the first fixing sleeve and the first driving device are both installed on the trolley, the main positioning pile is provided in the sliding sleeve of the inner cavity of the first fixing sleeve, a first rack is installed on the side of the main positioning pile close to the first driving device, a first gear is installed on the output shaft of the first driving device, and the first gear is meshed with the first rack for transmission.

6. The surge-proof dredger according to claim 1, characterized in that: The lifting auxiliary positioning pile assembly includes a second fixing sleeve and a second driving device, the second fixing sleeve and the second driving device are both installed on the hull, an auxiliary positioning pile is provided in the sliding sleeve of the inner cavity of the second fixing sleeve, a second rack is installed on the side of the auxiliary positioning pile close to the second driving device, a second gear is installed on the output shaft of the second driving device, and the second gear is meshed with the second rack for transmission.

7. The surge-proof dredger according to claim 1, characterized in that: Two first connecting arms are relatively installed on one end of the lifting bridge away from the dredging device, one end of the two first connecting arms is respectively fixedly installed on the lifting bridge, and the other end is respectively hingedly installed on the bridge fixing seat; A second pushing device is also provided between the lifting bridge and the bridge fixing seat, one end of the second pushing device is hingedly installed on the bridge fixing seat, and the other end is hingedly installed on the lifting bridge.

8. The surge-proof dredger according to claim 1, characterized in that: A second connecting arm is provided on a side of the bridge fixing seat close to the hull, and the second connecting arm is hingedly mounted on the hull; A third pushing device is also provided between the bridge frame fixing seat and the hull. Two third pushing devices are provided and are arranged on both sides of the second connecting arm opposite to each other. One end of the two third pushing devices is hingedly installed on the bridge frame fixing seat, and the other end is hingedly installed on the hull.

9. The surge-proof dredger according to claim 1, characterized in that: The lifting bridge adopts a cylindrical structure.

10. The surge-proof dredger according to claim 1, characterized in that: An anemometer is installed on the top of the operating room, a control system is installed in the operating room, data of the anemometer is connected to the control system, and data of the control system is connected to a remote control system.

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