Cutter suction dredger bridge frame fixing device

Abstract

The invention provides a cutter suction dredger bridge frame fixing device. The cutter suction dredger bridge frame fixing device comprises a bridge frame fixing plug pin seat, a portal frame fixing plug pin seat, a fixing plug pin and a driving assembly. The bridge frame fixing bolt seat is arranged on the outer side of the bridge frame and is connected with the bridge frame; one side, close to the gunwale, of the bridge fixing bolt seat is provided with a bridge fixing seat which protrudes outwards and is used for fixing a fixing bolt; the door frame fixing bolt seat is arranged on the inner side of the door frame and is connected with the door frame; the side, close to the inboard, of the portal fixing bolt seat is provided with a portal fixing seat which protrudes outwards and is used for fixing a fixing bolt. In the process that the bridge frame is lifted to the horizontal position from the water bottom, when the bridge frame fixing base is aligned with the portal frame fixing base, the driving assembly can drive the fixing plug pin to connect and fix the bridge frame fixing base and the portal frame fixing base. According to the invention, efficient and convenient fixation and release between the bridge and the ship body can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of ship engineering, and specifically, to a fixing device for the bridge of a cutter suction dredger, especially a fixing device that can quickly and conveniently realize the shelving and fixing between the bridge and the hull through a fixed pin driven by a hydraulic cylinder when the cutter suction dredger is in a navigation state. Background Art

[0002] A cutter suction dredger is an engineering ship that is widely used in engineering fields such as dredging waterways and reclaiming land from the sea. The bridge is an essential construction equipment for a cutter suction dredger. During the construction operation of the cutter suction dredger, it is necessary to rotate and lower one end of the bridge cutter head around the rotation point to a certain depth of water to achieve its dredging operation; during the long-distance displacement or navigation of the cutter suction dredger, it is necessary to rotate and raise one end of the bridge cutter head around the rotation point to leave the water surface and perform corresponding fixation to ensure that during the towing or navigation of the cutter suction dredger, the bridge will neither form additional resistance nor swing, thus ensuring the safety of the ship.

[0003] After the bridge is lifted to the horizontal position by the bridge winch, the bridge winch cannot be kept in a stressed state for a long time. Therefore, it is necessary to fix between the bridge and the hull to prevent the adverse effects on ship safety caused by the displacement of the bridge in the length direction, width direction, and height direction of the ship. How to achieve efficient and convenient fixation and release between the bridge and the hull urgently requires the development of a fixing device with simple operation.

[0004] The patent document with the publication number JP2002059888A discloses a dredger with studs. In a dredger equipped with a fixed anchor rod with a pin rack and a movable anchor rod with a pin rack, the moving passage of the movable anchor rod with a pin rack is formed by a groove formed longitudinally through the dredger, and the movable pin support frame with a pin rack is movably supported by the moving passage of the movable pin with a pin rack. The movable pin with a pin rack is vertically supported by the movable pin support frame, and has a pin rack and a pin rack. However, this patent document still has the defect that it cannot achieve efficient and convenient fixation and release between the bridge and the hull. Summary of the Invention

[0005] Aiming at the defects in the prior art, the purpose of the present invention is to provide a fixing device for the bridge of a cutter suction dredger.

[0006] According to a fixing device for the bridge of a cutter suction dredger provided by the present invention, it includes: a bridge fixing pin seat, a gantry fixing pin seat, a fixing pin, and a driving assembly;

[0007] The bridge fixed pin seat is arranged on the outer side of the bridge and is connected to the bridge; on the side of the bridge fixed pin seat close to the ship's side, there is a bridge fixed seat protruding outward for fixing the fixed pin.

[0008] The gantry fixed pin seat is arranged on the inner side of the gantry and is connected to the gantry; on the side of the gantry fixed pin seat close to the ship's interior, there is a gantry fixed seat protruding outward for fixing the fixed pin.

[0009] During the process of lifting the bridge from the bottom of the water to the horizontal position, when the bridge fixed seat is aligned with the gantry fixed seat, the driving component can drive the fixed pin to connect and fix the bridge fixed seat and the gantry fixed seat.

[0010] Preferably, a bridge lifting guide block is arranged on the gantry fixed pin seat.

[0011] During the process of lifting the bridge from the bottom of the water to the horizontal position, the bridge lifting guide block can guide the rise of the bridge fixed pin seat.

[0012] Preferably, a bridge pin slot is arranged on the bridge fixed seat.

[0013] A gantry pin slot is arranged on the gantry fixed seat.

[0014] When the bridge fixed seat is aligned with the gantry fixed seat, the bridge pin slot and the gantry pin slot form a fixed pin slot for inserting the fixed pin.

[0015] Preferably, the bridge fixing device of the cutter suction dredger further includes: a fixed cushion block.

[0016] After the fixed pin is inserted into the fixed pin slot, the fixed cushion block can fill the gap between the outer side wall of the fixed pin and the inner side wall of the fixed pin slot.

[0017] Preferably, the bridge fixing device of the cutter suction dredger further includes: bolts and nuts.

[0018] Connection holes are arranged on both the bridge fixed pin seat and the gantry fixed pin seat.

[0019] When the bridge fixed seat is aligned with the gantry fixed seat, the bridge fixed pin seat and the gantry fixed pin seat can be connected and fixed through the connection holes, the bolts and the nuts.

[0020] Preferably, the bridge fixed pin seat is welded to the bridge as a whole.

[0021] Preferably, the gantry fixed pin seat is welded to the gantry as a whole.

[0022] Preferably, the driving assembly includes: an oil cylinder and an oil cylinder fixing device;

[0023] The oil cylinder is arranged on the oil cylinder fixing device, and one end of the piston rod of the oil cylinder is connected to one end of the fixed bolt.

[0024] Preferably, the fixed bolt is of a wedge-shaped structure;

[0025] One inner side wall of the fixed bolt groove is an inclined surface, which is adapted to the inclined surface of the wedge-shaped structure.

[0026] Preferably, the fixed bolt seat for the bridge can bear the weight of the bridge;

[0027] The fixed bolt seat for the gantry can bear the weight of the bridge;

[0028] The fixed bolt can bear the weight of the bridge.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Under the navigation or towing conditions, the present invention can quickly and effectively fix the bridge and the hull in a short time, greatly improving the operation efficiency of the cutter suction dredger. At the same time, it also provides sufficient guarantee for the safety of the bridge and the hull.

[0031] 2. The present invention respectively sets a fixed bolt seat for the bridge and a fixed bolt seat for the gantry on the bridge and the gantry, and fixes the fixed bolt seat for the bridge and the fixed bolt seat for the gantry through the fixed bolt driven by a hydraulic cylinder, so as to quickly and conveniently realize the fixing device for the bridge and the hull to be placed and fixed.

[0032] 3. The present invention sets a bridge lifting guide block on the fixed bolt seat for the gantry. During the process of lifting the bridge from the bottom of the water to the horizontal position, it can guide the fixed bolt seat for the bridge to rise smoothly, ensuring that the bridge can be smoothly lifted to the fixed height position.

[0033] 4. The present invention is provided with a fixed cushion block. After the bridge is smoothly lifted to the fixed height, the fixed bolt is inserted into the fixed bolt seat for the bridge and the fixed bolt seat for the gantry, and then the fixed cushion plate is inserted to ensure that the bridge is firmly fixed without displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:

[0035] Figure 1 It is an installation schematic diagram of the connection between the bridge and the gantry through the bridge fixing device of the cutter suction dredger;

[0036] Figure 2 is Figure 1 a schematic structural view of the cutter suction dredger bridge fixing device for the M part in

[0037] Figure 3 is for Figure 1 a schematic sectional view along line A-A;

[0038] Figure 4 is when the fixing pin is inserted Figure 1 a schematic sectional view along line B-B;

[0039] Figure 5 is when the fixing pin is pulled out Figure 1 a schematic sectional view along line B-B;

[0040] Figure 6 a schematic structural view of the bridge fixing pin seat;

[0041] Figure 7 is Figure 6 a schematic sectional view along line A-1;

[0042] Figure 8 is Figure 6 a schematic sectional view along line C-C;

[0043] Figure 9 a schematic structural view of the gantry fixing pin seat;

[0044] Figure 10 is Figure 9 a schematic sectional view along line A-2;

[0045] Figure 11 is Figure 9 a schematic sectional view along line D-D.

[0046] The figure shows:

[0047] bridge fixing pin seat 1 fixing cushion block 7

[0048] gantry fixing pin seat 2 bolt 8

[0049] fixing pin 3 nut 9

[0050] oil cylinder 4 bridge 10

[0051] oil cylinder fixing device 5 gantry 11

[0052] bridge lifting guide block 6 Specific implementation method

[0053] The present invention will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those of ordinary skill in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0054] Example 1:

[0055] As Figure 1 - Figure 11 shown, this embodiment provides a fixed device for the bridge of a cutter suction dredger, including: a bridge fixed pin seat 1, a gantry fixed pin seat 2, a fixed pin 3, and a driving component 4; the bridge fixed pin seat 1 is arranged on the outside of the bridge 10 and is connected to the bridge 10; on one side of the bridge fixed pin seat 1 close to the ship's side, there is a bridge fixed seat 101 protruding outward for fixing the fixed pin 3; the gantry fixed pin seat 2 is arranged on the inside of the gantry 11 and is connected to the gantry 11; on one side of the gantry fixed pin seat 2 close to the ship's interior, there is a gantry fixed seat 201 protruding outward for fixing the fixed pin 3; during the process of lifting the bridge 10 from the bottom of the water to the horizontal position, when the bridge fixed seat 101 is aligned with the gantry fixed seat 201, the driving component 4 can drive the fixed pin 3 to connect and fix the bridge fixed seat 101 and the gantry fixed seat 201.

[0056] There is a bridge pin slot 102 on the bridge fixed seat 101; there is a gantry pin slot 202 on the gantry fixed seat 201; when the bridge fixed seat 101 is aligned with the gantry fixed seat 201, the bridge pin slot 102 and the gantry pin slot 202 form a fixed pin slot for the fixed pin 3 to insert. The fixed device for the bridge of the cutter suction dredger further includes: a fixed cushion block 7; after the fixed pin 3 is inserted into the fixed pin slot, the fixed cushion block 7 can fill the gap between the outer side wall of the fixed pin 3 and the inner side wall of the fixed pin slot. The fixed pin 3 is of a wedge-shaped structure; one inner side wall of the fixed pin slot is an inclined surface, which is adapted to the inclined surface of the wedge-shaped structure.

[0057] The bridge fixed pin seat 1 is welded to the bridge 10 as a whole. The gantry fixed pin seat 2 is welded to the gantry 11 as a whole. There is a bridge lifting guide block 6 on the gantry fixed pin seat 2; during the process of lifting the bridge 10 from the bottom of the water to the horizontal position, the bridge lifting guide block 6 can guide the bridge fixed pin seat 1 to rise.

[0058] The fixed device for the bridge of the cutter suction dredger further includes: a bolt 8 and a nut 9; there are connection holes on both the bridge fixed pin seat 1 and the gantry fixed pin seat 2; when the bridge fixed seat 101 is aligned with the gantry fixed seat 201, the bridge fixed pin seat 1 and the gantry fixed pin seat 2 can be connected and fixed through the connection holes, the bolt 8, and the nut 9.

[0059] The driving assembly includes: an oil cylinder 4 and an oil cylinder fixing device 5; the oil cylinder 4 is arranged on the oil cylinder fixing device 5, and one end of the piston rod of the oil cylinder 4 is connected to one end of the fixed pin 3.

[0060] The bridge fixed pin seat 1 can bear the weight of the bridge 10; the gantry fixed pin seat 2 can bear the weight of the bridge 10; the fixed pin 3 can bear the weight of the bridge 10.

[0061] This embodiment provides a bridge fixing device for a cutter suction dredger, which includes: a bridge fixed pin seat 1, a gantry fixed pin seat 2, a fixed pin 3, an oil cylinder 4, an oil cylinder fixing device 5, a bridge lifting guide block 6, a fixed cushion block 7, etc. The two bridge fixed pin seats 1 are respectively welded to the outer side plates on the left and right sides of the bridge 10 as a whole; the two gantry fixed pin seats 2 are respectively welded to the inner side plates on the left and right sides of the gantry 11 as a whole; and the four sets of oil cylinder fixing devices are respectively fixed on the gantry 11 of the hull. The end of the piston rod of the oil cylinder 4 is connected to the end of the fixed pin 3, and the bottom of the oil cylinder of the oil cylinder 4 is connected to the oil cylinder fixing device 5 to complete the fixation of the oil cylinder 4 and the fixed pin 3, forming a complete set of bridge fixing devices for the cutter suction dredger.

[0062] When the cutter suction dredger is ready to move long distances or sail, it is necessary to lift the bridge 10 to a horizontal position and fix it. At this time, the bridge is rotated around the rotation point by the bridge hoisting winch arranged on the ship, and the cutter head end of the bridge is gradually lifted. Correspondingly, the bridge fixed pin seat 1 is lifted to a horizontal position under the guidance of the bridge lifting guide block, and together with the gantry fixed pin seat 2, it forms an integral fixed pin seat. The fixed pin 3 is gradually driven by the oil cylinder 4 to enter the integral fixed pin seat. After the fixed pin 3 is installed in place, the fixed cushion block 7 is installed into the gap between the fixed pin 3 and the integral fixed pin seat. The bolt 8 is passed through the openings pre-arranged on the bridge fixed pin seat 1 and the gantry fixed pin seat 2 and tightened with a nut 9 to complete the fixation of the bridge.

[0063] When the cutter suction dredger enters the construction area and is ready to operate, it is necessary to lower the bridge underwater to complete the dredging task. At this time, the nut is first loosened so that the bridge fixed pin seat 1 and the bridge fixed pin seat 2 can be disengaged. The fixed cushion block 7 is withdrawn from the integral fixed pin seat. By contracting the oil cylinder 4, the fixed pin 3 is withdrawn from the integral fixed pin seat under its drive. At this time, the bridge is rotated around the rotation point by the bridge hoisting winch arranged on the ship, and the cutter head end of the bridge is gradually lowered to the designated position to complete the lowering of the bridge.

[0064] Under sailing or towing conditions, this embodiment can quickly and effectively fix the bridge and the hull within a short time, greatly improving the operation efficiency of the cutter suction dredger. At the same time, it also provides sufficient guarantee for the safety of the bridge and the hull.

[0065] Example 2:

[0066] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0067] This embodiment provides a novel bridge fixing device for a cutter suction dredger, which includes:

[0068] Bridge fixing pin seat (bridge part), a thick plate that can bear the weight of the bridge, arranged on the outside of the bridge. A fixing seat structure protruding outward for fixing the fixing pin is arranged on the side of the pin seat close to the ship's side.

[0069] Bridge fixing pin seat (gantry part), a thick plate that can bear the weight of the bridge, arranged inside the gantry of the hull of the cutter suction dredger. A fixing seat structure protruding outward for fixing the fixing pin is arranged on the side of the pin seat close to the inside of the ship's side, and it is used in cooperation with the bridge fixing pin seat (bridge part).

[0070] Fixing pin, a wedge-shaped device that can bear the weight of the bridge.

[0071] Oil cylinder, providing power for the fixing pin to realize the insertion and extraction of the pin.

[0072] Bridge lifting guide block, arranged on the bridge fixing pin seat (gantry part) to ensure that the bridge can be smoothly lifted to the fixed height position.

[0073] Fixing cushion block, after the fixing pin is inserted into the bridge fixing pin seat, insert the fixing backing plate to ensure that the bridge is firmly fixed without displacement.

[0074] Bridge fixing pin seat (bridge part), the bridge fixing pin seat (bridge part) is a thick plate that can bear the weight of the bridge, arranged on the outside of the bridge structure and welded to the bridge as a whole. A fixing seat structure protruding outward for fixing the fixing pin is arranged on the side of the pin seat close to the ship's side, and it needs to be used in cooperation with the corresponding structure of the bridge fixing pin seat (gantry part) 2 to form a complete pin seat device.

[0075] Bridge fixing pin seat (gantry part). The pin seat is a thick plate that can bear the weight of the bridge and is arranged inside the gantry of the hull of the cutter suction dredger, welded to the gantry as a whole. On the side of the pin seat close to the inner side of the ship, there is a fixing seat structure protruding outward for fixing the fixing pin, which needs to be used in conjunction with the corresponding structure of the bridge fixing pin seat (bridge part) to form a complete pin seat device.

[0076] Fixing pin. The fixing pin is a wedge-shaped device that can bear the weight of the bridge, and its end is connected to the oil cylinder.

[0077] Oil cylinder. For the oil cylinder, the end of its piston rod is connected to the end of the fixing pin 3, providing power for the fixing pin to realize the insertion and extraction of the pin.

[0078] Oil cylinder fixing device. The oil cylinder fixing device fixes the bottom of the oil cylinder.

[0079] Bridge lifting guide block. The bridge lifting guide block is arranged on the bridge fixing pin seat (gantry part). During the process of lifting the bridge from the bottom of the water to the horizontal position, it guides the bridge fixing pin seat (bridge part) to rise smoothly, ensuring that the bridge can be smoothly lifted to the fixed height position.

[0080] Fixing cushion block. After the bridge is smoothly lifted to the fixed height, insert the fixing pin into the bridge fixing pin seat and insert the fixing cushion block to ensure that the bridge is firmly fixed without displacement.

[0081] Bolts and nuts. After the bridge fixing pin seat (bridge part) is aligned with the bridge fixing pin seat (gantry part), use the local bolts and nuts to tighten through the pre-arranged openings.

[0082] The purpose of this embodiment is to solve the above problems and difficulties existing during the long-distance displacement or navigation of the cutter suction dredger, and provide a new type of bridge fixing device that can successfully complete the tasks of fixing and lowering the bridge.

[0083] Example 3:

[0084] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0085] As Figure 1 - Figure 11 shown, the bridge fixing device of the cutter suction dredger in this embodiment mainly includes:

[0086] Bridge fixed pin seat (bridge part). This pin seat is a thick plate that can bear the weight of the bridge. It is arranged on the outside of the bridge structure and welded to the bridge as a whole. On the side of this pin seat close to the ship's side, there is a fixing seat structure protruding outward for fixing the fixed pin, which needs to cooperate with the corresponding structure of the bridge fixed pin seat (gantry part) to form a complete pin seat device. The bridge fixed pin seat (bridge part) is the bridge fixed pin seat 1.

[0087] Bridge fixed pin seat (gantry part). This pin seat is a thick plate that can bear the weight of the bridge. It is arranged inside the gantry of the hull of the cutter suction dredger and welded to the gantry as a whole. On the side of this pin seat close to the inner side of the ship, there is a fixing seat structure protruding outward for fixing the fixed pin, which needs to cooperate with the corresponding structure of the bridge fixed pin seat (bridge part) to form a complete pin seat device. The bridge fixed pin seat (gantry part) is the gantry fixed pin seat 2.

[0088] Fixed pin 3, a wedge-shaped device that can bear the weight of the bridge, and its end is connected to the oil cylinder.

[0089] Oil cylinder 4, the end of its piston rod is connected to the end of the fixed pin 3, providing power for the fixed pin to realize the insertion and extraction of the pin.

[0090] Oil cylinder fixing device 5, fixing the bottom of the oil cylinder.

[0091] Bridge lifting guide block 6, arranged on the bridge fixed pin seat (gantry part). During the process of lifting the bridge from the bottom to the horizontal position, it guides the bridge fixed pin seat (bridge part) to rise smoothly, ensuring that the bridge can be smoothly lifted to the fixed height position.

[0092] Fixed cushion block 7. After the bridge is smoothly lifted to the fixed height, insert the fixed pin into the bridge fixed pin seat and insert the fixed cushion plate 7 to ensure that the bridge is firmly fixed without displacement.

[0093] Bolts 8 and nuts 9. After the bridge fixed pin seat (bridge part) is aligned with the bridge fixed pin seat (gantry part), use bolts 8 and nuts 9 to fasten through the pre-arranged openings.

[0094] Figure 1 - Figure 3 It is the front view of this embodiment and the corresponding enlarged detail drawings and sectional views.

[0095] Figure 4 It is the sectional view of this embodiment, which is a detailed drawing showing the insertion state of the fixed pin shaft and the process of completing the bridge fixing.

[0096] Figure 5It is a sectional view of this embodiment, showing in detail the state of the fixed insertion pin being pulled out and the process of releasing the bridge frame completed.

[0097] Figure 6 - Figure 8 It is the bridge frame fixed insertion pin seat (bridge frame part) and sectional view of this embodiment.

[0098] Figure 9 - Figure 11 It is the bridge frame fixed insertion pin seat (gantry part) and sectional view of this embodiment.

[0099] The installation and working process of this embodiment are as follows:

[0100] 1) Weld two bridge frame fixed insertion pin seats (bridge frame part) to the outer side plates on the left and right sides of the bridge frame respectively to form a whole.

[0101] 2) Weld two bridge frame fixed insertion pin seats (gantry part) to the inner side plates on the left and right sides of the gantry respectively to form a whole.

[0102] 3) Fix four sets of oil cylinder fixing devices 5 on the gantry of the ship respectively.

[0103] 4) Connect the end of the piston rod of the oil cylinder 4 to the end of the fixed insertion pin 3.

[0104] 5) Connect the bottom of the oil cylinder of the oil cylinder 4 to the oil cylinder fixing device 5 to complete the fixing of the oil cylinder 4 and the fixed insertion pin 3.

[0105] When the trailing suction hopper dredger is ready to move long - distance or sail, it is necessary to lift the bridge frame to the horizontal position and fix it. At this time, the bridge frame is rotated around the rotation point by the bridge - lifting winch arranged on the ship, and the cutter head end of the bridge frame is gradually lifted. Correspondingly, the bridge frame fixed insertion pin seat (bridge frame part) is lifted to the horizontal position under the guidance of the bridge - lifting guide block 6, and together with the bridge frame fixed insertion pin seat (gantry part), it forms an integral bridge frame fixed insertion pin seat. The fixed insertion pin 3 gradually enters the bridge frame fixed insertion pin seat under the drive of the oil cylinder 4. After the fixed insertion pin 3 is installed in place, the fixed cushion block 7 is installed into the gap between the fixed insertion pin 3 and the bridge frame fixed insertion pin seat. The bolt 8 is passed through the openings pre - arranged on the bridge frame fixed insertion pin seat (bridge frame part) and the bridge frame fixed insertion pin seat (gantry part), and fastened with the nut 9 to complete the fixing of the bridge frame.

[0106] When the cutter suction dredger enters the construction area and prepares for operation, the bridge needs to be lowered underwater to complete the dredging task. At this time, first loosen the nut 9 so that the bridge fixed pin seat (bridge part) and the bridge fixed pin seat (gantry part) can be disengaged. Withdraw the fixed spacer 7 from the bridge fixed pin seat. By retracting the oil cylinder 4, the fixed pin 3 is withdrawn from the bridge fixed pin seat under its drive. At this time, the bridge is rotated around the rotation point by the bridge hoisting winch arranged on the ship, and one end of the cutter head of the bridge is gradually lowered to the specified position to complete the lowering of the bridge.

[0107] The bridge is the main construction equipment of the cutter suction dredger. A large number of related equipment and devices are arranged on the bridge, which on the one hand makes the bridge very heavy and difficult to fix, and on the other hand also poses high requirements for the safety of the bridge. In the navigation or towing conditions, the present invention can quickly and effectively fix the bridge and the hull in a short time, greatly improving the operation efficiency of the cutter suction dredger. At the same time, it also provides sufficient guarantee for the safety of the bridge and the hull.

[0108] The present invention can realize the efficient and convenient fixation and release between the bridge and the hull.

[0109] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0110] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

Claims

1. A fixed device for the bridge of a cutter suction dredger, characterized in that Including: A bridge fixing pin seat (1), a gantry fixing pin seat (2), a fixing pin (3) and a driving assembly (4); The bridge fixing pin seat (1) is arranged on the outer side of the bridge (10) and is connected to the bridge (10); on the side of the bridge fixing pin seat (1) close to the ship's side, there is a protruding bridge fixing seat (101) for fixing the fixing pin (3) outward; The gantry fixing pin seat (2) is arranged on the inner side of the gantry (11) and is connected to the gantry (11); on the side of the gantry fixing pin seat (2) close to the ship's interior, there is a protruding gantry fixing seat (201) for fixing the fixing pin (3) outward; During the process of lifting the bridge (10) from the bottom of the water to the horizontal position, when the bridge fixing seat (101) is aligned with the gantry fixing seat (201), the driving assembly (4) can drive the fixing pin (3) to connect and fix the bridge fixing seat (101) and the gantry fixing seat (201).

2. The fixed device for the bridge of the cutter suction dredger according to claim 1, wherein A bridge lifting guide block (6) is arranged on the gantry fixing pin seat (2); During the process of lifting the bridge (10) from the bottom of the water to the horizontal position, the bridge lifting guide block (6) can guide the bridge fixing pin seat (1) to rise.

3. The bridge fixing device of the cutter suction dredger according to claim 1, characterized in that, A bridge pin slot (102) is arranged on the bridge fixing seat (101); A gantry pin slot (202) is arranged on the gantry fixing seat (201); When the bridge fixing seat (101) is aligned with the gantry fixing seat (201), the bridge pin slot (102) and the gantry pin slot (202) form a fixing pin slot for inserting the fixing pin (3).

4. The bridge fixing device of the cutter suction dredger according to claim 3, characterized in that, The bridge fixing device of the cutter suction dredger further includes: a fixing cushion block (7); After the fixing pin (3) is inserted into the fixing pin slot, the fixing cushion block (7) can fill the gap between the outer side wall of the fixing pin (3) and the inner side wall of the fixing pin slot.

5. The bridge fixing device of the cutter suction dredger according to claim 1, characterized in that, The bridge fixing device of the cutter suction dredger further includes: a bolt (8) and a nut (9); Connection holes are arranged on both the bridge fixing pin seat (1) and the gantry fixing pin seat (2); When the bridge fixing seat (101) is aligned with the gantry fixing seat (201), the bridge fixing pin seat (1) and the gantry fixing pin seat (2) can be connected and fixed through the connection holes, the bolt (8) and the nut (9).

6. The bridge fixing device of the cutter suction dredger according to claim 1, characterized in that The bridge fixing pin seat (1) is welded to the bridge (10) as a whole.

7. The bridge fixing device of the trailing suction hopper dredger according to claim 1, characterized in that, The gantry fixing pin seat (2) is welded to the gantry (11) as a whole.

8. The bridge fixing device of the cutter suction dredger according to claim 1, characterized in that, The driving assembly includes: an oil cylinder (4) and an oil cylinder fixing device (5); The oil cylinder (4) is arranged on the oil cylinder fixing device (5), and the end of the piston rod of the oil cylinder (4) is connected to one end of the fixing pin (3).

9. The trailing suction hopper dredger bridge fixing device according to claim 3, characterized in that The fixing pin (3) is of a wedge-shaped structure; One inner side wall of the fixing pin slot is an inclined surface, which is adapted to the inclined surface of the wedge-shaped structure.

10. The bridge fixing device of the cutter suction dredger according to claim 1, characterized in that, The bridge fixing pin seat (1) can bear the weight of the bridge (10); The gantry fixed pin seat (2) can bear the weight of the bridge frame (10); The fixed pin (3) can bear the weight of the bridge frame (10).

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