Tensioning type binding structure and scheme for ocean transportation of large structure

Abstract

According to the tensioning type binding structure and scheme for ocean transportation of the large structure, the binding structure is divided into an upper part and a lower part, the upper part limits upper displacement of the large structure through a limiting strip, a connecting cable and the like, and the lower part limits bottom displacement through a limiting base, a flexible hinge and the like; a tension structure unit is formed in the middle through a drag hook cable and a hinge rod, and the auxiliary supporting structure assists in limiting horizontal displacement and forms self-locking through a bridge lock, a supporting rod, a rubber pad and the like. According to the binding scheme, the binding structure and the auxiliary supporting structure are installed, three-way displacement of the large structure can be effectively limited, and ocean transportation safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of ocean transportation of large structures, in particular to a tensioned lashing structure and a lashing scheme for ocean transportation of large structures. Background Art

[0002] In the ocean transportation of large structures, the complex swaying of ships due to factors such as waves and wind can easily cause large structures to shift longitudinally, laterally, or vertically, potentially leading to accidents due to collisions with the hull or failure of lashing devices. Existing lashing technology, which primarily relies on a combination of rigid supports and fixed rigging, has several significant drawbacks.

[0003] Traditional rigid lashing structures lack a buffer mechanism. When the ship sways, instantaneous impact loads will be generated between the structure and the lashing device, which can easily cause component breakage or surface damage of the structure. Existing solutions are difficult to simultaneously limit three-dimensional displacement, especially the dynamic displacement constraint in the horizontal direction (lateral and longitudinal). The structure may slip or overturn due to the action of inertia. Traditional lashing requires on-site adjustment of multiple sets of rigging tension. The process is cumbersome and highly dependent on the operator's experience, making it difficult to adapt to the needs of rapid loading of large structures. Under high sea conditions, the rigid system cannot absorb energy through flexible deformation, and continuous vibration may cause the connection to loosen, posing a risk of lashing failure.

[0004] Therefore, developing a tensioned lashing structure and solution with flexible buffering, multi-directional limiting and efficient installation characteristics to solve the above problems is of great significance to improving the safety and reliability of ocean transportation of large structures. Summary of the Invention

[0005] The purpose of the present invention is to provide a tensioned lashing structure and lashing scheme for the ocean transportation of large structures. The tensioned lashing structure is used to limit the axial displacement of the large structure, and the auxiliary support structure is used to assist in limiting the horizontal displacement of the structure. The lashing scheme is implemented using a simple lashing combination.

[0006] To achieve the above-mentioned objectives, the present invention provides a tensioned lashing structure and lashing scheme for ocean transportation of large structures, comprising a large structure, wherein the large structure is lashed in the lashing structure, wherein the lashing structure limits the three-dimensional displacement of the large structure, wherein the large structure is placed on the hull deck via a limiting base, wherein the large structure is connected to an auxiliary support structure via a bridge lock and a rubber pad, wherein the auxiliary support structure is connected to the hull deck.

[0007] The binding structure is divided into two parts, the upper column structure is a limit bar, and 4 limit bars are placed on the edge of each side above the large structure. The limit bar is L-shaped. The limit bar is only placed at the corner of the large structure and in contact with it. One end of the limit bar is provided with a connecting hole and the other end is provided with a hinge node. The connecting cable passes through the connecting hole. The connecting cable only passes through the connecting hole, that is, it is not tied to the connecting hole. The connecting cable is continuously in a tensioned state and pulls multiple limit bars toward the center. A hook hole is provided on the side of the limit bar.

[0008] The lower half of the lashing structure is provided with a limit base, which is placed on the hull deck, with a hook hole and a hinge node on the top. There are four groups of hook holes and hinge nodes, which are equidistantly arranged on the same straight line. The limit base is provided with a flexible hinge, which is connected to another limit base. Multiple limit bases are connected end to end through flexible hinges to limit the bottom displacement of large structures.

[0009] A hook rope is provided in the middle of the binding structure, and a hook structure is provided at each end of the hook rope, and is connected between the limit bar and the limit base through the hook structure. A hinged rod is also connected between the limit bar and the limit base through a hinge node. The hinged rod has a fixed length and is hinged on two hinge nodes. After installation, the hook rope, the hinged rod and the limit base form an obtuse triangle, forming a tensioning structure unit. Multiple tensioning structure units, connecting ropes and limit bases together constitute a complete tensioning integral structure.

[0010] The hook structure is divided into three parts: a hook hole, a hook and a hook rope. The hook hole is respectively arranged on the limit bar and the limit base. The hook can be hung in the hook hole. The hook rope has a part of elasticity and is connected to the end of the hook.

[0011] The auxiliary support structure is installed between the hull deck and the large structure, and a bridge lock is installed on the large structure. The bridge lock is connected to one end of the lanyard, and the other end of the lanyard is connected to the hull deck; A fixed node is installed on the hull deck, a strut is installed on the fixed node, the strut is rotated and hinged around the fixed node, a movable node is installed on the other end of the strut, the strut is rotated and hinged around the movable node, a rubber pad is installed on the movable node, and the rubber pad contacts the side of the large structure.

[0012] There are four groups of auxiliary support structures, which are installed around the large structure respectively. The friction coefficient μ of the rubber pad is greater than the sine value of the self-locking limit angle, and the structure is self-locking. Multiple auxiliary support structures are self-locking to assist in limiting the displacement of the structure.

[0013] A tension lashing scheme for ocean transportation of large structures comprises the following steps: Step a: Load the large structure, place a limit bar on top, place limit bases around it, install hinged rods between corresponding hinged nodes, connect hook cables between corresponding hook holes, install and tighten the connecting cable after all are connected, and complete the installation of the lashing structure; Step b: Install a bridge lock at the corner connection of the large structure, connect a lanyard to the bridge lock and connect it to the hull deck, place the movable node of the support rod installed on the hull deck in advance on the side of the large structure, and adjust the angle of the movable node to form a self-locking effect.

[0014] Compared with the related art, the present invention has the following beneficial effects: (1) Through the synergistic effect of the upper and lower parts of the lashing structure, the upper limit bar and the connecting cable form a tension constraint to limit the horizontal displacement of the upper part of the large structure; the lower limit base is connected end to end through a flexible hinge, and the tension unit formed by the hook cable and the hinged rod can effectively limit the three-dimensional displacement of the bottom, thus realizing multi-directional constraint on the structure; (2) The connecting rope only passes through the connecting hole without being tied, and the hook rope is elastic, which can absorb the impact energy through flexible deformation when the ship shakes, avoiding the stress concentration caused by rigid connection and improving the durability of the lashing system; (3) The friction coefficient μ of the rubber pad in the auxiliary support structure is greater than the sine value of the self-locking limit angle. By adjusting the angle of the active node, reliable self-locking can be achieved. In conjunction with the connection between the bridge lock and the lanyard, the ability to limit the horizontal displacement of large structures can be significantly enhanced. (4) The lashing structure adopts a modular design. Components such as limit bars and limit bases can be quickly assembled, and standardized connections are achieved through hinged nodes and hook structures. The lashing scheme is completed in two steps, with a clear operation process, which greatly reduces the complexity of on-site installation and improves the efficiency of transportation preparation. (5) The setting of flexible hinges and elastic hook ropes enables the lashing system to have a certain degree of dynamic adaptability, which can better cope with complex working conditions such as hull sway and heel caused by waves in ocean transportation, and ensure the stability and safety of large structures during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional schematic diagram of the tension lashing scheme for ocean transportation of large structures according to the present invention; Figure 2 It is a three-dimensional schematic diagram of the upper half of the lashing structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the limiting base of the present invention; Figure 4 It is a three-dimensional schematic diagram of the lower half of the lashing structure of the present invention; Figure 5 for Figure 4 Enlarged view of part A; Figure 6 A three-dimensional schematic diagram of the auxiliary support structure of the present invention; Figure 7 It is a three-dimensional schematic diagram of the contact portion between the auxiliary support structure of the present invention and the large structure.

[0016] The following are marked in the figure: 1-Large structure, 2-Binding structure, 3-Auxiliary support structure, 201-Limiting bar, 202-Hook hole, 203-Hinged node, 204-Connecting hole, 205-Connecting rope, 206-Limiting base, 207-Flexible hinge, 208-Hinged rod, 209-Hook rope, 210-Hook, 301-Active node, 302-Strut, 303-Fixed node, 304-Tether, 305-Bridge lock, 306-Rubber pad, A-Hook structure. DETAILED DESCRIPTION

[0017] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0018] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0019] like Figure 1 As shown, the large structure 1 is tied in the tying structure 2, which limits the three-dimensional displacement of the large structure 1. The large structure 1 is placed on the hull deck through the limiting base 206. The large structure 1 is connected to the auxiliary support structure 3 through the bridge lock 305 and the rubber pad 306, and the auxiliary support structure 3 is connected to the hull deck.

[0020] like Figure 2As shown, the lashing structure 2 is divided into two parts, the upper column structure is a limit bar 201, and four limit bars 201 are placed on the edge of each side above the large structure 1. The limit bars 201 are L-shaped. The limit bars 201 are only placed at the corners of the large structure 1 and in contact with it. A connecting hole 204 is provided at one end of the limit bar 201, and a hinge node 203 is provided at the other end. A connecting rope 205 passes through the connecting hole 204. The connecting rope 205 only passes through the connecting hole 204, that is, it is not tied to the connecting hole 204. The connecting rope 205 is continuously in a tensioned state and pulls the multiple limit bars 201 toward the center. A hook hole 202 is provided on the side of the limit bar 201.

[0021] like Figure 3 As shown, the lower half of the lashing structure 2 is provided with a limiting base 206, which is placed on the hull deck, and is provided with a hook hole 202 on the top, and a hinge node 203. There are four groups of hook holes 202 and hinge nodes 203, which are equidistantly arranged on the same straight line. The limiting base 206 is provided with a flexible hinge 207, and the flexible hinge 207 is connected to another limiting base 206. Multiple limiting bases 206 are connected end to end through the flexible hinge 207 to limit the bottom displacement of the large structure 1.

[0022] like Figure 4 As shown, a hook rope 209 is provided in the middle of the binding structure 2, and a hook structure A is provided at each end of the hook rope 209, and is connected between the limit bar 201 and the limit base 206 through the hook structure A. A hinged rod 204 is also connected between the limit bar 201 and the limit base 206 through a hinge node 203. The hinged rod 204 has a fixed length and is hinged on two hinge nodes 203. After installation, the hook rope 209, the hinged rod 204 and the limit base 206 form an obtuse triangle, forming a tensioning structure unit. Multiple tensioning structure units, connecting ropes 205 and limit bases 206 together constitute a complete tensioning integral structure.

[0023] like Figure 5 As shown, the hook structure A is divided into three parts: a hook hole 202, a hook 210 and a hook rope 209. The hook hole 202 is respectively provided on the limiting strip 201 and the limiting base 206. The hook 210 can be hung in the hook hole 202. The hook rope 209 has a certain elasticity and is connected to the end of the hook 210.

[0024] like Figure 6-7 As shown, the auxiliary support structure 3 is installed between the hull deck and the large structure 1, and a bridge lock 305 is installed on the large structure 1. The bridge lock 305 is connected to one end of the mooring line 304, and the other end of the mooring line 304 is connected to the hull deck; A fixed node 303 is installed on the hull deck, and a strut 302 is installed on the fixed node 303. The strut 302 is rotated and hinged around the fixed node 303. A movable node 301 is installed on the other end of the strut 302. The strut 302 is rotated and hinged around the movable node 301. A rubber pad 306 is installed on the movable node 301, and the rubber pad 306 contacts the side of the large structure 1.

[0025] There are four groups of auxiliary support structures 3, which are installed around the large structure 1 respectively. The friction coefficient μ of the rubber pad 306 is greater than the sine value of the self-locking limit angle, so the structure forms a self-locking structure. Multiple auxiliary support structures 3 are self-locking to assist in limiting the displacement of the structure.

[0026] A tension lashing scheme for ocean transportation of large structures includes the following steps: Step a: Load the large structure 1, place the limit bar 201 on top, place the limit base 206 around it, install the hinge rod 208 between the corresponding hinge nodes 203, connect the hook cable 209 between the corresponding hook holes 202, and after all are connected, install the connecting cable 205 and tighten it to complete the installation of the lashing structure 2; Step b: Install a bridge lock 305 at the corner connection of the large structure 1, connect the mooring rope 304 to the bridge lock 305 and connect it to the hull deck, place the active node 301 of the strut 302 installed on the hull deck in advance on the side of the large structure 1, and adjust the angle of the active node 301 to form a self-locking structure.

[0027] The present invention achieves precise limitation and flexible buffering of the three-dimensional displacement of large structures through the innovative design of the tensioned lashing structure and the auxiliary support structure. The modular design of the lashing structure and the mechanical construction of the tensioning unit not only ensure the reliability of the multi-directional constraint, but also disperse the stress through elastic elements and flexible hinges, thereby improving the adaptability to complex sea conditions; the self-locking mechanism design of the auxiliary support structure further enhances the horizontal limiting capability. The entire solution combines ease of installation with dynamic stability, effectively solving the problems of stress concentration and insufficient limiting in traditional rigid lashing, and providing a safe and efficient technical solution for the ocean transportation of large structures.

[0028] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the above description is merely illustrative of the principles of the present invention and that various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and that such changes and modifications fall within the scope of the invention as claimed.

[0029] It is intended that the scope of protection sought in this invention be defined by the following claims and their equivalents.

Claims

1. A tension lashing structure for ocean transport of large structures, characterized by: The invention comprises a large structure (1), wherein the large structure (1) is tied in a tying structure (2), wherein the tying structure (2) limits the three-dimensional displacement of the large structure (1), wherein the large structure (1) is placed on the hull deck via a limiting base (206), wherein the large structure (1) is connected to an auxiliary support structure (3) via a bridge lock (305) and a rubber pad (306), and wherein the auxiliary support structure (3) is connected to the hull deck.

2. The tension lashing structure for ocean transportation of large structures according to claim 1, characterized in that: The binding structure (2) is divided into two parts, the upper column structure is a limit bar (201), and four limit bars (201) are placed on the edge of each side above the large structure (1). The limit bars (201) are L-shaped. The limit bars (201) are only placed at the corners of the large structure (1) and in contact with it. One end of the limit bar (201) is provided with a connecting hole (204), and the other end is provided with a hinge node (203). The connecting hole (204) passes through a connecting rope (205). The connecting rope (205) only passes through the connecting hole (204), that is, it is not tied to the connecting hole (204). The connecting rope (205) is continuously in a tensioned state and tightens the multiple limit bars (201) toward the center. A hook hole (202) is provided on the side of the limit bar (201).

3. The tension lashing structure for ocean transportation of large structures according to claim 2, characterized in that: The lower half of the lashing structure (2) is provided with a limiting base (206), the limiting base (206) is placed on the hull deck, and a hook hole (202) is provided on the upper side, and a hinge node (203) is also provided. There are four groups of hook holes (202) and hinge nodes (203), which are equidistantly arranged on the same straight line. The limiting base (206) is provided with a flexible hinge (207), and the flexible hinge (207) is connected to another limiting base (206). Multiple limiting bases (206) are connected end to end through the flexible hinge (207) to limit the bottom displacement of the large structure (1).

4. The tension lashing structure for ocean transportation of large structures according to claim 3, characterized in that: A hook rope (209) is provided in the middle of the binding structure (2), and a hook structure (A) is provided at each end of the hook rope (209), and is connected between the limit bar (201) and the limit base (206) through the hook structure (A). A hinged rod (204) is also connected between the limit bar (201) and the limit base (206) through a hinge node (203). The hinged rod (204) has a fixed length and is hinged on two hinge nodes (203). After installation, the hook rope (209), the hinged rod (204) and the limit base (206) form an obtuse triangle, forming a tensioning structure unit. A plurality of tensioning structure units, connecting ropes (205) and limit bases (206) together form a complete tensioning integral structure.

5. The tension lashing structure for ocean transportation of large structures according to claim 4, characterized in that: The hook structure (A) is divided into three parts: a hook hole (202), a hook (210) and a hook rope (209). The hook hole (202) is respectively arranged on the limit strip (201) and the limit base (206). The hook (210) can be hung in the hook hole (202). The hook rope (209) has a part of elasticity and is connected to the end of the hook (210).

6. The tension lashing structure for ocean transportation of large structures according to claim 1, characterized in that: The auxiliary support structure (3) is installed between the hull deck and the large structure (1), and a bridge lock (305) is installed on the large structure (1). The bridge lock (305) is connected to one end of the mooring rope (304), and the other end of the mooring rope (304) is connected to the hull deck; A fixed node (303) is installed on the hull deck, a strut (302) is installed on the fixed node (303), the strut (302) is rotatably hinged around the fixed node (303), a movable node (301) is installed on the other end of the strut (302), the strut (302) is rotatably hinged around the movable node (301), a rubber pad (306) is installed on the movable node (301), and the rubber pad (306) contacts the side of the large structure (1).

7. The tension lashing structure for ocean transportation of large structures according to claim 6, characterized in that: There are four groups of auxiliary support structures (3) installed around the large structure (1). The friction coefficient μ of the rubber pad (306) is greater than the sine value of the self-locking limit angle, and the structure forms a self-locking structure. The self-locking of multiple auxiliary support structures (3) assists in limiting the displacement of the structure.

8. A tension lashing scheme for large structures for ocean transport, using the tension lashing structure for large structures for ocean transport according to any one of claims 1 to 7, comprising the following steps: Step a, loading the large structure (1), placing a limit bar (201) on the top, placing limit bases (206) around it, installing hinged rods (208) between corresponding hinged nodes (203), connecting hook cables (209) between corresponding hook holes (202), installing and tightening the connecting cable (205) after all are connected, and completing the installation of the lashing structure (2); Step b, installing a bridge lock (305) at a corner connection of the large structure (1), connecting a mooring rope (304) to the bridge lock (305) and connecting it to the hull deck, placing the movable node (301) of the strut (302) pre-installed on the hull deck on the side of the large structure (1), and adjusting the angle of the movable node (301) to form a self-locking structure.

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