A hull connection device for a dredger

Abstract

The present invention relates to the technical field of ships, and proposes a hull connection device for a dredger, which includes two connected first fixing mechanisms and two connected second fixing mechanisms. A connection mechanism is fixedly connected to the middle of the two first fixing mechanisms and the two second fixing mechanisms. The first fixing mechanism includes a first connection frame and a second connection frame, a third connection frame and a fourth connection frame that are fixedly connected, as well as two first hinge frames and two fixing blocks. The two first fixing mechanisms and the two second fixing mechanisms are respectively fixed on the decks of two dredgers to connect and fix the two dredgers. By using the second electric push rod and the fifth electric push rod to tighten the distance between the upper and lower layers of the first fixing mechanism and the second fixing mechanism, the hull can be fixed. Moreover, the two connected first fixing mechanisms and the two second fixing mechanisms are fixed through the connection mechanism, and the connection mechanism provides resistance to bending force and torsion as well as excellent stability.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and particularly to a hull connection device for a dredger. Background Art

[0002] The hull of a dredger has the characteristics of being closely connected, having a firm structure, and strong load-bearing capacity. In order to increase the working area of the dredger, it is necessary to carry out construction operations in parallel with the dredger. However, the existing operations for the combined operation of dredgers have certain limitations. When in use, it is restricted by factors such as the ship's own factors and water buoyancy, and it is impossible to ensure the stable connection of two dredgers to form an equivalent parallel middle body to reduce wave-making resistance and expand its working range.

[0003] To complete the connection of two dredgers, a hull connection device is used to complete the preliminary connection of the two dredgers. However, when the ship is docked, it greatly depends on the skills and experience of the operator, the aiming accuracy is relatively low, and a large number of manual operations are still required throughout the working process, and the degree of automation is low.

[0004] Therefore, we make improvements in this regard and propose a hull connection device for a dredger. Summary of the Invention

[0005] The purpose of the present invention is to provide a hull connection device for a dredger to solve the problems raised in the above background art.

[0006] To achieve the above invention purpose, the present invention provides a hull connection device for a dredger, which includes two connected first fixing mechanisms and two connected second fixing mechanisms. A connection mechanism is fixedly connected to the middle of the two first fixing mechanisms and the two second fixing mechanisms. The first fixing mechanism includes a first connection frame and a second connection frame, a third connection frame and a fourth connection frame fixedly connected, and two first hinge frames and two fixing blocks. A second fixing mechanism is connected to the first hinge frame. The second fixing mechanism includes a sixth connection frame, a seventh connection frame, an eighth connection frame and a ninth connection frame. The front ends of the first fixing mechanism and the second fixing mechanism are hingedly installed. A hydraulic push rod is connected to the rear ends of the first fixing mechanism and the second fixing mechanism. Floating platforms are fixedly installed on the outer sides of the two first fixing mechanisms, and a traction mechanism is fixedly installed at the rear end of the first fixing mechanism.

[0007] As a further solution of the present invention, the first connecting frame and the second connecting frame overlap up and down, the third connecting frame and the fourth connecting frame overlap up and down, the first connecting frame and the second connecting frame, and the third connecting frame and the fourth connecting frame are both L-shaped. There are third electric push rods connected between the fixed block and the first connecting frame, between the fixed block and the third connecting frame, between the first hinge frame and the second connecting frame, and between the first hinge frame and the fourth connecting frame. There are several second electric push rods connected in the middle of the first connecting frame and the second connecting frame, and in the middle of the third connecting frame and the fourth connecting frame. There is a first electric push rod connected in the middle of the first connecting frame and the third connecting frame, and between the second connecting frame and the fourth connecting frame. A first bolt is installed on one side of the fourth connecting frame and the first hinge frame, and a second bolt is fixedly connected to the upper end surface of the third connecting frame. The second bolt is fixedly installed with the connecting mechanism.

[0008] As a further solution of the present invention, there are fifth electric push rods fixedly connected in the middle of the sixth connecting frame and the seventh connecting frame, and the eighth connecting frame and the ninth connecting frame. There are fourth electric push rods fixedly connected in the middle of the sixth connecting frame and the eighth connecting frame, and the seventh connecting frame and the ninth connecting frame. Fixed frames are fixedly connected to the tails of the sixth connecting frame and the eighth connecting frame. A positioning hole is opened in the middle of the fixed frame, and a third hinge frame is fixedly connected to the tail of the fixed frame. The positioning hole is threadedly connected with the first bolt, and the third hinge frame is hinged with the hydraulic push rod. Second hinge frames are connected to the tails of the seventh connecting frame and the ninth connecting frame, and the second hinge frames are hinged with the first hinge frame.

[0009] As a further solution of the present invention, the traction mechanism includes a winch and several positioning rings. The winch and the positioning rings are both fixedly connected to the first fixing mechanism. A ship chain is wound inside the winch, the middle of the ship chain passes through the inside of the positioning ring, and a ship hook is fixedly connected to the top end of the ship chain.

[0010] As a further solution of the present invention, the connecting mechanism includes two first connecting seats and two second connecting seats. A third bolt is fixedly installed on the upper end of the first connecting seat. The first connecting seat and the second connecting seat are fixedly connected by the third bolt. A sixth electric push rod is fixedly connected in the middle of the two first connecting seats, and several docking components are connected to the two second connecting seats.

[0011] As a further solution of the present invention, the number of the traction mechanisms is two, and the two traction mechanisms are symmetrically and fixedly installed on the upper ends of the first connecting frame and the second connecting frame.

[0012] As a further solution of the present invention, the fixing frame is a T-shaped profile, and a T-shaped groove is provided on the outer side surface of the second connecting seat. The second connecting seat is sleeved and fixed with the fixing frame, and a connecting ear and a mounting hole are fixedly connected to the inner side of the second connecting seat.

[0013] As a further solution of the present invention, the docking assembly is in an A shape as a whole. The docking assembly includes two swing arms. A seventh electric push rod is connected to the bottom ends of the two swing arms. A connecting piece is connected to the top ends of the two swing arms. Plug pins are fixedly installed at the bottom ends of the two swing arms, and the plug pins are hinged to the connecting ears.

[0014] The beneficial effects of a hull connection device for a dredger provided by the present invention are as follows:

[0015] 1. By providing the upper and lower layered first fixing mechanism and second fixing mechanism, the two first fixing mechanisms and the two second fixing mechanisms are respectively fixed on the decks of two dredgers to connect and fix the two dredgers. The distances between the upper and lower layers of the first fixing mechanism and the second fixing mechanism are tightened by the second electric push rod and the fifth electric push rod, so that the hull can be fixed. Moreover, the two connected first fixing mechanisms and two second fixing mechanisms are fixed through a connection mechanism, and the connection mechanism provides counteracting bending force, torsion force and excellent stability.

[0016] 2. By fixedly installing two traction mechanisms on both sides of the tail end of the first fixing mechanism, the dredger is fixed by a ship hook, and the ship chain is wound by a winch to tow the dredger, so as to facilitate driving the dredger to move into the interior of the first fixing mechanism, align the dredger with the hull connection device, increase the connection accuracy and connection efficiency between the hull connection device and the dredger, and facilitate the rapid connection between the hulls of the dredgers.

[0017] 3. By hinging the first fixing mechanism and the second fixing mechanism, the second fixing mechanism can rotate at the hinge joint of the first hinge frame and the second hinge frame under the push and pull of the hydraulic push rod, squeeze and turn the front end of the second fixing mechanism towards the bottom of the water, leave the ship entry positions of the first fixing mechanism and the second fixing mechanism, facilitate the installation of the dredger and the hull connection device, and limit the front end of the dredger after the second fixing mechanism is laid flat, ensuring the connection stability between the dredger and the hull connection device. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of a hull connection device for a dredger provided by the present application;

[0020] Figure 2 Schematic diagram of the folded state of a hull connection device for a dredger provided by the present application;

[0021] Figure 3 Schematic diagram of the laid - flat state of a hull connection device for a dredger provided by the present application;

[0022] Figure 4 Structural schematic diagram of the first fixing mechanism of a hull connection device for a dredger provided by the present application;

[0023] Figure 5 Structural schematic diagram of the second fixing mechanism of a hull connection device for a dredger provided by the present application;

[0024] Figure 6 Structural schematic diagram of the traction mechanism of a hull connection device for a dredger provided by the present application;

[0025] Figure 7 Structural schematic diagram of the connection mechanism of a hull connection device for a dredger provided by the present application;

[0026] Figure 8 Structural schematic diagram of the docking assembly of a hull connection device for a dredger provided by the present application.

[0027] In the figure: 1. First fixing mechanism; 11. First connecting frame; 12. Second connecting frame; 13. Third connecting frame; 14. Fourth connecting frame; 15. First hinge frame; 16. Fixed block; 17. First electric push rod; 18. Second electric push rod; 19. Third electric push rod; 110. First bolt; 111. Second bolt; 2. Second fixing mechanism; 21. Sixth connecting frame; 22. Seventh connecting frame; 23. Eighth connecting frame; 24. Ninth connecting frame; 25. Fixed frame; 26. Fourth electric push rod; 27. Fifth electric push rod; 28. Second hinge frame; 29. Positioning hole; 210. Third hinge frame; 3. Floating platform; 4. Hydraulic push rod; 5. Towing mechanism; 51. Winch; 52. Positioning ring; 53. Ship chain; 54. Ship hook; 6. Connecting mechanism; 61. First connecting seat; 62. Sixth electric push rod; 63. Third bolt; 64. Second connecting seat; 65. Connecting ear; 66. Mounting hole; 67. Docking assembly; 671. Swing arm; 672. Pin; 673. Connecting piece; 674. Seventh electric push rod. Detailed implementation manners

[0028] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the specification drawings and embodiments. The following embodiments are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] As Figures 1-8 shown, this embodiment provides a hull connection device for a dredger, which includes two connected first fixing mechanisms 1 and two connected second fixing mechanisms 2. A connecting mechanism 6 is fixedly connected to the middle of the two first fixing mechanisms 1 and the two second fixing mechanisms 2. The first fixing mechanism 1 includes fixedly connected first connecting frame 11 and second connecting frame 12, third connecting frame 13 and fourth connecting frame 14, as well as two first hinge frames 15 and two fixed blocks 16. A second fixing mechanism 2 is connected to the first hinge frame 15. The second fixing mechanism 2 includes a sixth connecting frame 21, a seventh connecting frame 22, an eighth connecting frame 23 and a ninth connecting frame 24. The front ends of the first fixing mechanism 1 and the second fixing mechanism 2 are hinged and installed. The rear ends of the first fixing mechanism 1 and the second fixing mechanism 2 are connected with a hydraulic push rod 4. Floating platforms 3 are fixedly installed on the outer sides of the two first fixing mechanisms 1. A towing mechanism 5 is fixedly installed at the rear end of the first fixing mechanism 1.

[0030] The first connecting frame 11 and the second connecting frame 12 overlap vertically, the third connecting frame 13 and the fourth connecting frame 14 overlap vertically. The first connecting frame 11 and the second connecting frame 12, and the third connecting frame 13 and the fourth connecting frame 14 are all L-shaped. There are third electric push rods 19 connected between the fixed block 16 and the first connecting frame 11, between the fixed block 16 and the third connecting frame 13, between the first hinge frame 15 and the second connecting frame 12, and between the first hinge frame 15 and the fourth connecting frame 14. There are several second electric push rods 18 connected between the middle of the first connecting frame 11 and the second connecting frame 12, and between the middle of the third connecting frame 13 and the fourth connecting frame 14. There is a first electric push rod 17 connected between the middle of the first connecting frame 11 and the third connecting frame 13, and between the second connecting frame 12 and the fourth connecting frame 14. On one side of the fourth connecting frame 14 and the first hinge frame 15, there is a first bolt 110 installed. On the upper end face of the third connecting frame 13, there is a second bolt 111 fixedly connected, and the second bolt 111 is fixedly installed with the connecting mechanism 6. By setting the first connecting frame 11 and the second connecting frame 12, and the third connecting frame 13 and the fourth connecting frame 14, the stern position of the hull is clamped and fixed, and it is close to the hull, ensuring the stability of the hull after connection.

[0031] There are fifth electric push rods 27 fixedly connected between the middle of the sixth connecting frame 21 and the seventh connecting frame 22, and between the eighth connecting frame 23 and the ninth connecting frame 24. There are fourth electric push rods 26 fixedly connected between the middle of the sixth connecting frame 21 and the eighth connecting frame 23, and between the seventh connecting frame 22 and the ninth connecting frame 24. At the tails of the sixth connecting frame 21 and the eighth connecting frame 23, there are fixed frames 25 fixedly connected. There is a positioning hole 29 opened in the middle of the fixed frame 25. At the tail of the fixed frame 25, there is a third hinge frame 210 fixedly connected. The positioning hole 29 is threadedly connected with the first bolt 110, and the third hinge frame 210 is hinged with the hydraulic push rod 4. At the tails of the seventh connecting frame 22 and the ninth connecting frame 24, there are second hinge frames 28 connected, and the second hinge frames 28 are hinged with the first hinge frame 15. By setting the sixth connecting frame 21 and the seventh connecting frame 22, and the eighth connecting frame 23 and the ninth connecting frame 24, the bow position of the hull is clamped and fixed, and it is close to the hull, ensuring the stability of the hull after connection. And the up and down flipping of the second fixing mechanism 2 facilitates the hull to dock inside the first fixing mechanism 1 and the second fixing mechanism 2, facilitating the connection between the hulls.

[0032] The traction mechanism 5 includes a winch 51 and several positioning rings 52. The winch 51 and the positioning rings 52 are both fixedly connected to the first fixing mechanism 1. There is a ship chain 53 wound inside the winch 51. The middle of the ship chain 53 passes through the inside of the positioning rings 52, and the top end of the ship chain 53 is fixedly connected with a ship hook 54. The traction mechanism 5 is fixedly installed at the position of the first fixing mechanism 1. The hull is fixed by the ship hook 54, and the hull is dragged and pulled to dock in the middle of the first fixing mechanism 1, increasing the accuracy during the connection of the hulls and improving the connection efficiency of the hulls.

[0033] The connecting mechanism 6 includes two first connecting seats 61 and two second connecting seats 64. A third bolt 63 is fixedly installed at the upper end of the first connecting seat 61. The first connecting seat 61 and the second connecting seat 64 are fixedly connected by the third bolt 63. A sixth electric push rod 62 is fixedly connected between the two first connecting seats 61. A number of docking components 67 are connected to the two second connecting seats 64. The first fixing mechanism 1 and the second fixing mechanism 2 fixed to the outer sides of the two hulls are connected by the connecting mechanism 6, and the first fixing mechanism 1 and the second fixing mechanism 2 are fixed to realize the connection between the hulls.

[0034] The number of the traction mechanisms 5 is two. The two traction mechanisms 5 are symmetrically and fixedly installed at the upper ends of the first connecting frame 11 and the second connecting frame 12. The two traction mechanisms 5 respectively traction the two sides of the hull to ensure the driving angle of the hull and improve the connection accuracy of the hull.

[0035] The fixing frame 25 is a T-shaped profile, and a T-shaped groove is formed on the outer side surface of the second connecting seat 64. The second connecting seat 64 is sleeved and fixed with the fixing frame 25. A connecting ear 65 and a mounting hole 66 are fixedly connected to the inner side of the second connecting seat 64. The second connecting seat 64 is connected to the second fixing mechanism 2 and rotates together with the second fixing mechanism 2 on the premise of fixing the two second fixing mechanisms 2 to determine the distance between the two connected hulls.

[0036] The docking component 67 is in an A shape as a whole. The docking component 67 includes two swing arms 671. A seventh electric push rod 674 is connected to the bottom ends of the two swing arms 671. A connecting piece 673 is connected to the top ends of the two swing arms 671. Plug pins 672 are fixedly installed at the bottom ends of the two swing arms 671. The plug pins 672 are hinged to the connecting ear 65. The swing arms 671 are opened and closed by the expansion and contraction of the sixth electric push rod 62 and the seventh electric push rod 674, so as to control the overall width of the connecting mechanism 6 and adjust the distance between the two connected hulls.

[0037] Specifically, when the hull connection device for the dredger is in use: The second fixing mechanism 2 rotates at the hinge joint of the first hinge frame 15 and the second hinge frame 28 under the push and pull of the hydraulic push rod 4, squeezing and flipping the front end of the second fixing mechanism 2 towards the bottom of the water, leaving the entry positions of the first fixing mechanism 1 and the second fixing mechanism 2. The ship hook 54 is located at the stern of the dredger. By winding the ship chain 53 with the winch 51, the dredger is towed to move inside the first fixing mechanism 1, so that the dredger is positioned and aligned with the hull connection device. The first fixing mechanism 1 and the second fixing mechanism 2, which are arranged in upper and lower layers, are respectively fixed on the decks of two dredgers, connecting and fixing the two dredgers, providing counteracting bending force, torsion and excellent stability for the two connected hulls. When the dredger is installed with the hull connection device, the second fixing mechanism 2 is laid flat to limit the front end of the dredger, making the connection between the dredger and the hull connection device stable. Among them, the first electric push rod 17, the second electric push rod 18, the third electric push rod 19, the fourth electric push rod 26, the fifth electric push rod 27, the sixth electric push rod 62, and the seventh electric push rod 674 are all electric push rods for electric ships, with excellent corrosion resistance and suitable for long-term use on the hull surface. The content not described in detail in this description belongs to the prior art well-known to those skilled in the art.

[0038] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered by the scope of the claims of the present invention.

Claims

1. A hull connection device for a dredger, comprising two connected first fixing mechanisms (1) and two connected second fixing mechanisms (2) and a connection mechanism (6), characterized in that: The lower half of the connecting mechanism (6) is connected to the middle of the two first fixing mechanisms (1), and the upper half of the connecting mechanism (6) is connected to the middle of the two second fixing mechanisms (2). The first fixing mechanism (1) comprises a first connecting frame (11) and a second connecting frame (12), a third connecting frame (13) and a fourth connecting frame (14) which are fixedly connected, two first articulated frames (15) and two fixing blocks (16). The first articulated frame (15) is connected to the second fixing mechanism (2). The second fixing mechanism (2) comprises a sixth connecting frame (21), a seventh connecting frame (22), an eighth connecting frame (23) and a ninth connecting frame (24). The front ends of the first fixing mechanism (1) and the second fixing mechanism (2) are hingedly mounted. The rear ends of the first fixing mechanism (1) and the second fixing mechanism (2) are connected to hydraulic push rods (4). The outer sides of the two first fixing mechanisms (1) are fixedly mounted with floating platforms (3). The rear ends of the first fixing mechanisms (1) are fixedly mounted with traction mechanisms (5).

2. A hull connection device for a dredger according to claim 1, characterized in that: The first connecting frame (11) and the second connecting frame (12) overlap each other vertically, and the third connecting frame (13) and the fourth connecting frame (14) overlap each other vertically. The first connecting frame (11) and the second connecting frame (12), the third connecting frame (13) and the fourth connecting frame (14) are all L-shaped. A third electric push rod (19) is connected between the fixing block (16) and the first connecting frame (11), between the fixing block (16) and the third connecting frame (13), between the first articulated frame (15) and the second connecting frame (12), and between the first articulated frame (15) and the fourth connecting frame (14). The first connecting frame A plurality of second electric push rods (18) are connected between the middle of the first connecting frame (11) and the third connecting frame (13) and the fourth connecting frame (14); a first electric push rod (17) is connected between the middle of the first connecting frame (11) and the third connecting frame (13) and the second connecting frame (12) and the fourth connecting frame (14); a first bolt (110) is installed on one side of the fourth connecting frame (14) and the first articulated frame (15); a second bolt (111) is fixedly connected to the upper end surface of the third connecting frame (13); and the second bolt (111) is fixedly installed with the connecting mechanism (6).

3. A hull connection device for a dredger according to claim 2, characterized in that: A fifth electric push rod (27) is fixedly connected in the middle of the sixth connecting frame (21) and the seventh connecting frame (22), the eighth connecting frame (23) and the ninth connecting frame (24); a fourth electric push rod (26) is fixedly connected in the middle of the sixth connecting frame (21) and the eighth connecting frame (23), the seventh connecting frame (22) and the ninth connecting frame (24); and a fixing frame (25) is fixedly connected at the rear ends of the sixth connecting frame (21) and the eighth connecting frame (23). A positioning hole (29) is provided in the middle of the fixing frame (25); a third articulated frame (210) is fixedly connected to the rear end of the fixing frame (25); the positioning hole (29) is threadedly connected to the first bolt (110); the third articulated frame (210) is articulated to the hydraulic push rod (4); the rear ends of the seventh connecting frame (22) and the ninth connecting frame (24) are both connected to a second articulated frame (28); and the second articulated frame (28) is articulated to the first articulated frame (15).

4. A hull connection device for a dredger according to claim 1, characterized in that: The traction mechanism (5) comprises a winch (51) and a plurality of positioning rings (52), the winch (51) and the positioning rings (52) being fixedly connected to the first fixing mechanism (1), a ship chain (53) being wound inside the winch (51), a middle portion of the ship chain (53) being passed through the interior of the positioning ring (52), and a ship hook (54) being fixedly connected to the top end of the ship chain (53).

5. A hull connection device for a dredger according to claim 3, characterized in that: The connection mechanism (6) comprises two first connection seats (61) and two second connection seats (64); a third bolt (63) is fixedly mounted on the upper end of the first connection seat (61); the first connection seat (61) and the second connection seat (64) are fixedly connected via the third bolt (63); a sixth electric push rod (62) is fixedly connected between the two first connection seats (61); and a plurality of docking assemblies (67) are connected to the two second connection seats (64).

6. A hull connection device for a dredger according to claim 4, characterized in that: The number of the traction mechanisms (5) is two, and the two traction mechanisms (5) are symmetrically fixedly mounted on the upper ends of the first connecting frame (11) and the second connecting frame (12).

7. A hull connection device for a dredger according to claim 5, characterized in that: The fixing frame (25) is a T-shaped profile, and a T-shaped groove is provided on an outward side of the second connecting seat (64). The second connecting seat (64) is sleeved and fixed to the fixing frame (25), and a connecting ear (65) and a mounting hole (66) are fixedly connected to the inner side of the second connecting seat (64).

8. A hull connection device for a dredger according to claim 5, characterized in that: The docking assembly (67) is in an A-shape as a whole, and comprises two swing arms (671), the bottom ends of the two swing arms (671) are connected to a seventh electric push rod (674), the top ends of the two swing arms (671) are connected to a connecting piece (673), and the bottom ends of the two swing arms (671) are fixedly mounted with a latch (672), and the latch (672) is hinged to the connecting ear (65).

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