Gravity type wharf mooring connecting device

Abstract

The utility model relates to the technical field of wharf mooring, in particular to a gravity type wharf mooring connecting device. Comprising a connecting mooring line connecting a wharf mooring line column and a mooring ship, and further comprises a connecting heavy block, the connecting heavy block is connected with a third pulley above the connecting heavy block, the third pulley is arranged in a guide rail in the vertical direction in a sliding mode, the connecting mooring line bypasses the lower surface of the third pulley, and a buffering mechanism is arranged below the connecting heavy block. The wharf mooring device can effectively avoid sudden change of tension in a connecting mooring line, and the risk of wharf mooring failure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dock mooring, in particular to a gravity-type dock mooring connection device. Background Art

[0002] As the process of economic globalization continues to advance, international trade exchanges continue to deepen, and maritime shipping, as an indispensable link, plays an important role in my country's economic development. The throughput of ports and terminals continues to increase, and more and more ships need to berth at the terminal for loading and unloading. In order to complete different forms of operations, it is necessary to limit the position of ships docked at the terminal to ensure the safety of operations during the berthing period.

[0003] In the existing dock mooring mode, nylon ropes and other elastic materials are generally used to connect the dock and the mooring bollard of the ship. Since the water level of the dock is affected by the tide, when the moored ship is at a high water level, the mooring cable is in an extremely tight state, causing stress concentration in the mooring cable. At this time, timely manual loosening of the cable is required, which is cumbersome and risky. Once the operation is wrong, it is easy to cause casualties. If the cable is not loosened in time, it will cause the mooring cable to break, the mooring bollard to be sheared and damaged, etc., resulting in the failure of the dock mooring. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and propose a gravity-type dock mooring connection device, which can effectively avoid sudden changes in tension in the connecting mooring cable and reduce the risk of dock mooring failure.

[0005] The technical solution of the utility model is: a gravity-type dock mooring connection device, including a connecting cable connecting the dock mooring column and the moored ship, which also includes a connecting weight block, the connecting weight block is connected to the third pulley above the connecting weight block, the third pulley is slidably arranged in a guide rail in the vertical direction, the connecting cable passes around the lower surface of the third pulley, and a buffer mechanism is provided below the connecting weight block.

[0006] In the utility model, the guide rail is arranged on a support plate, the support plate is located between the pier mooring post and the moored ship, and the connecting weight is connected to the third pulley through a connecting chain lock.

[0007] The connecting tethers include a first connecting tether and a second connecting tether.

[0008] The support plate is also provided with a first pulley and a second pulley, the first pulley is connected to the lower part of the support plate close to the pier mooring post, and the second pulley is located between the first pulley and the third pulley and connected to the upper part of the support plate;

[0009] One end of the first connecting mooring cable is fixedly connected to the dock mooring bollard, and the other end of the first connecting mooring cable is connected to the second connecting mooring cable. The first connecting mooring cable passes around the lower surface of the first pulley, the upper surface of the second pulley, and the lower surface of the third pulley in sequence.

[0010] One end of the second connecting mooring cable is connected to the ship's mooring bollard or winch on the moored ship, and the other end of the second connecting mooring cable is provided with a harpoon head, and the corresponding end of the first connecting mooring cable is provided with a shackle, and the connection between the harpoon head and the shackle is realized to realize the connection between the second connecting mooring cable and the first connecting mooring cable.

[0011] The buffer mechanism is a rubber buffer pad or a sand pool.

[0012] The beneficial effects of the utility model are:

[0013] (1) The present application utilizes the gravitational potential energy of the connecting weight to effectively buffer the problem of energy concentration in the connecting cable, and avoids damage to the connecting weight during the descent process through the buffer device;

[0014] (2) Compared with the existing dock mooring mode, the present application can alleviate the sudden increase in tension in the connecting cable caused by the change of tide level, has obvious advantages in fatigue performance and strength level, and reduces the risk of dock mooring failure;

[0015] (3) The device is easy to install at the dock and does not require additional modifications to the dock or ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 is a schematic diagram of the device and the ship mooring at low tide;

[0018] Figure 3 This is a schematic diagram of the device and ship mooring at high tide.

[0019] In the figure: 1, dock mooring bollard; 2, first pulley; 3, first connecting mooring cable; 4, second pulley; 5, guide rail; 6, third pulley; 7, connecting chain cable; 8, connecting weight block; 9, buffer device; 10, shackle; 11, pipa head; 12, second connecting mooring cable; 13, fender; 14, moored ship; 15, ship mooring bollard; 16, support plate; 17, fourth pulley. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0021] The following description sets forth specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in a variety of other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figure 1 As shown, the gravity-type dock mooring connection device of the utility model includes a connection weight block 8. During the up and down movement of the connection weight block 8, the tension in the connection mooring cable connecting the moored ship is adjusted to keep the tension in the connection mooring cable constant. In this embodiment, the weight G of the connection weight block 8 is 1-1.5 times the pre-tension T in the connection mooring cable.

[0023] The connecting weight 8 is connected to the third pulley 6 above it through the connecting chain cable 7. The third pulley 6 is slidably arranged in the vertically arranged guide rail 5. The third pulley 6 drives the connecting weight 8 connected thereto to move up and down during the up and down movement in the guide rail 5. A buffer mechanism 9 is arranged below the connecting weight 8. During the rising and falling process of the connecting weight 8, the contact between the connecting weight 8 and the buffer mechanism is conducive to the dissipation of the energy of the connecting weight in motion, and prevents the connecting weight 8 from being damaged due to an excessively fast descending speed.

[0024] In this embodiment, the connecting weight 8 can be made of reinforced concrete, steel, a steel cage with built-in stones, cast iron or other composite weights, and can be cylindrical, square, disc-shaped, etc., and the connecting weight provides a restoring force for dock mooring. The connecting chain cable 7 can be an anchor chain or an elastic composite material.

[0025] In this embodiment, the guide rail 5 is arranged on the support plate, so the third pulley 6 is slidably arranged on the support plate. A buffer mechanism is provided at the bottom of the support plate, and the buffer mechanism can be a rubber buffer pad or a sand pool. The support plate is arranged in a vertical direction and is located between the dock mooring post 1 and the moored ship 14. The support plate is also provided with a first pulley 2 and a second pulley 4, wherein the first pulley 2 is located at the lower part of the support plate near the dock mooring post 1, and the second pulley 4 is located between the first pulley 2 and the third pulley 6, and is located at the upper part of the support plate. One end of the first connecting mooring cable 3 is fixedly connected to the dock mooring post 1, and the other end is connected to the ship mooring post or a winch on the ship. The middle part of the first connecting mooring cable 3 is passed around the lower surface of the first pulley 2, the upper surface of the second pulley 4, and the lower surface of the third pulley 6 in sequence.

[0026] In this embodiment, the angle α between the first connecting cable between the second pulley 4 and the third pulley 6 and the horizontal plane is 40-80°.

[0027] The end of the first connecting mooring cable 3 is connected to the ship's mooring bollard or a winch on the ship through the second connecting mooring cable 12. A shackle 10 is fixed to the end of the first connecting mooring cable 3, a lute head 11 is fixed to one end of the second connecting mooring cable 12, and the other end of the second connecting mooring cable 12 is fixedly connected to the ship's mooring bollard 15. In order to protect the ship, a fender 13 is provided between the dock and the moored ship, and the fender 13 is fixed to the side wall of the dock. A fourth pulley can also be provided on the moored ship, and the second connecting mooring cable passes around the upper surface of the fourth pulley. The fourth pulley plays a guiding role for the second connecting mooring cable.

[0028] In this embodiment, the angle β between the second connecting mooring cable and the horizontal plane is 30-60°. And the angle α and the angle β satisfy the following formula:

[0029]

[0030] In the initial state, the third pulley 6 connected to the connecting weight 8 is located at the bottom of the guide rail. At this time, the distance h0 between the connecting weight 8 and the ground is:

[0031] h0=h1-D1tanα=h2-D2tanβ,

[0032] Among them, h1 is the vertical height of the first pulley 4, h2 is the vertical height of the mooring point between the second connecting mooring cable and the ship, D1 is the horizontal distance between the first pulley and the connecting weight, and D2 is the horizontal distance between the mooring point between the ship and the second connecting mooring cable and the connecting weight.

[0033] In this embodiment, the first connecting mooring cable and the second connecting mooring cable may be made of a high elastic composite material, which includes polyester cable and nylon. The shackle may be an Ω-shaped shackle structure or a D-shaped shackle structure.

[0034] The length L of the connecting mooring cable including the first connecting mooring cable and the second connecting mooring cable is:

[0035] L=L1+D1 / cosα+D2 / cosβ,

[0036] Wherein, L1 is the length of the first connecting cable passing through the first pulley 2 to the second pulley 4.

[0037] like Figure 2 As shown, when the seawater is at low tide, the third pulley 6 is located at the lower part of the guide rail 5, and at this time, preparation is made for the rise of the third pulley when the seawater tide level rises.

[0038] like Figure 3As shown, when the sea tide level increases, the height of the mooring point where the second connecting mooring cable 12 is connected to the ship's mooring column 15 also increases accordingly. At this time, the third pulley 6 is driven to move upward along the guide rail 5 through the second connecting mooring cable 15 and the first connecting mooring cable 3, thereby driving the connecting weight block 8 to move upward along the guide rail 5 until the connecting weight block 8 reaches a suitable position.

[0039] The working process of the device is as follows. First, the device is installed, and the connecting weight is hung on the third pulley through the connecting chain cable. Before the moored ship berths to the dock, the lute head 11 on the second connecting mooring cable 12 is dropped, so that the lute head 11 is connected to the shackle 10 at the end of the first connecting mooring cable 3. The cable car on the moored ship is used to perform the cable collection operation to adjust the first connecting mooring cable and the second connecting mooring cable to a suitable length.

[0040] During the operation of the device, if the mooring point of the moored ship is too far from the dock, the connecting weight will be lifted along the guide rail, and the connecting weight will rise to a suitable position as the position of the moored ship changes; if the mooring point of the moored ship is too close to the dock, the connecting weight will fall along the guide rail, and the connecting weight will fall to a suitable position as the position of the moored ship changes. The connecting weight will contact the buffer mechanism during the descent process to avoid damage to the connecting weight due to excessive descent speed. By raising or lowering the connecting weight, the sudden increase in tension of the connecting cable caused by the change in tide level can be alleviated, so that the tension in the connecting cable remains constant or changes less.

[0041] The gravity-type dock mooring connection device provided by the utility model is introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. The above description of the disclosed embodiments enables professional and technical personnel in this field to implement or use the utility model. The various modifications to these embodiments will be obvious to professional and technical personnel in this field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will comply with the widest range consistent with the principles and novel features disclosed in this article.

Claims

1. A gravity-type dock mooring connection device, comprising a connecting mooring cable connecting a dock mooring post and a moored vessel, characterized in that: It also includes a connecting weight block, which is connected to a third pulley above the connecting weight block. The third pulley is slidably arranged in a vertical guide rail, and the connecting cable passes around the lower surface of the third pulley. A buffer mechanism is arranged below the connecting weight block.

2. The gravity-type dock mooring connection device according to claim 1, characterized in that: The guide rail is arranged on a support plate, the support plate is located between the pier mooring bollard and the moored vessel, and the connecting weight is connected to the third pulley through a connecting chain lock.

3. The gravity-type dock mooring connection device according to claim 2, characterized in that: The connecting tethers include a first connecting tether and a second connecting tether.

4. The gravity-type dock mooring connection device according to claim 3, characterized in that: The support plate is also provided with a first pulley and a second pulley, the first pulley is connected to the lower part of the support plate close to the pier mooring post, and the second pulley is located between the first pulley and the third pulley and connected to the upper part of the support plate; One end of the first connecting mooring cable is fixedly connected to the dock mooring bollard, and the other end of the first connecting mooring cable is connected to the second connecting mooring cable. The first connecting mooring cable passes around the lower surface of the first pulley, the upper surface of the second pulley, and the lower surface of the third pulley in sequence.

5. The gravity-type dock mooring connection device according to claim 3, characterized in that: One end of the second connecting mooring cable is connected to the ship's mooring bollard or winch on the moored ship, and the other end of the second connecting mooring cable is provided with a harpoon head, and the corresponding end of the first connecting mooring cable is provided with a shackle, and the connection between the harpoon head and the shackle is realized to realize the connection between the second connecting mooring cable and the first connecting mooring cable.

6. The gravity-type dock mooring connection device according to claim 1, characterized in that: The buffer mechanism is a rubber buffer pad or a sand pool.

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