Ship buffering fender device

Abstract

A ship buffering fender device is characterized in that a sunken buffering groove is formed in a ship, a buffering box is arranged in the buffering groove, a longitudinal buffering mechanism and a lateral buffering mechanism are installed between the buffering box and the different side faces of the buffering groove respectively, and a fixed rubber fender is embedded into the outer side of the buffering box; and each buffering mechanism is used for absorbing impact force to realize buffering during jacking operation. According to the ship buffering fender device, the overall impact resistance and energy absorption capacity of a ship bow fender can be effectively improved through the longitudinal buffering mechanism, and the possibility that a rubber fender is damaged due to excessive deformation is greatly reduced; when heaving is generated due to the influence of waves, the lateral buffering mechanisms on the two sides can reduce the relative movement between the buffering box and the offshore facility, and therefore the stability of the ship is improved, and the safety of personnel embarkation is improved.

Description

Technical Field

[0001] The invention relates to a ship buffer structure, in particular to a fender device installed on the bow of a ship to absorb and buffer impact force. Background Art

[0002] With the continuous development of offshore resources, various types of equipment such as offshore platforms and offshore wind farms are also being gradually built. In order to transport materials and operate and maintain these offshore facilities, ships are required to travel back and forth between these facilities and the land. After the ship approaches, the staff needs to use boarding devices to enter the offshore facilities. However, due to the harsh marine environment, it is easy to be affected by wind, waves, and currents. The accessibility of the ship will be limited to varying degrees, especially when the ship rolls and sinks violently, it will become very difficult for the staff to board. In order to reduce the difficulty of boarding, rubber fenders are generally installed on the bow of the ship, and the rubber fenders are used to fix it relatively to the offshore facilities to improve the stability and safety of boarding.

[0003] The rubber fenders of existing ships are generally fixed to the hull by bolts or cable ties. However, due to the large longitudinal thrust of the ship and the heaving movement of the ship, the rubber fender and the offshore facilities will generate large friction resistance. Since the rubber fender is prone to large deformation, the fixing device cannot effectively disperse the internal stress generated thereby, resulting in large local deformation of the fixing device, and then causing rubber tearing, bolt damage and other problems. This not only affects the safety of the ship's rubbing operation, but also causes huge friction on the bow fender when the ship undergoes large heaving movement, causing it to slip between offshore facilities such as wind turbine piles, seriously affecting the safety of staff boarding. Summary of the invention

[0004] The object of the present invention is to provide a ship buffer fender device which can reduce damage caused by excessive deformation of the fender, so as to improve the stability and safety of the rubbing operation and personnel boarding.

[0005] The ship buffer fender device described in the present invention includes a buffer groove recessed in the bow of the hull, and a buffer box movably arranged in the buffer groove; a longitudinal buffer mechanism and a lateral buffer mechanism are respectively installed between the buffer box and the buffer groove along the bow and stern directions and the side directions of the ship, and the rubber fender is installed on the outside of the buffer box; the longitudinal buffer mechanism includes two brackets and an elastic buffer member, the two brackets are installed on the wall of one of the buffer groove and the buffer box, the other of the buffer groove and the buffer box is connected to the middle part of the buffer member by a connecting member, and a connecting rod is fixedly installed at one end of the buffer room and a rotating rod is hinged at the other end, and the other ends of the connecting rod and the rotating rod are respectively hinged to the two brackets.

[0006] Furthermore, a fender groove is provided on the outer side of the buffer box, and the rubber fender is installed in the fender groove.

[0007] Furthermore, the upper and lower ends of the outer side of the buffer box extend outwardly with clamping plates, a fender groove is formed between the two clamping plates, and the rubber fender is installed between the clamping plates at the upper and lower ends. There are also fixing parts that pass through the clamping plates and the rubber fender at the upper and lower ends and fix them to each other.

[0008] Furthermore, a rigid frame and a rigid sleeve for the fixing member to pass through are built-in on the inner side of the rubber fender, and the rigid frame and the rigid sleeve are fixed to each other via a connecting member.

[0009] Furthermore, rubber fenders are installed at both sides of the buffer tank at the bow of the hull, and the rubber fenders extend along the bow of the hull to the side of the ship.

[0010] Furthermore, the buffer member of the longitudinal buffer mechanism includes a plurality of elastic steel plates stacked in sequence, and a series connection member passing through each elastic steel plate and fixing them to each other, and the connecting member is arranged through the elastic steel plate.

[0011] Furthermore, all the elastic steel plates are arc-shaped with a consistent curvature, and the widths of the stacked elastic steel plates decrease successively.

[0012] Furthermore, a sleeve column is provided on the side of the buffer box, and the connecting piece is U-shaped, and both ends of the U-shaped connecting piece are arranged through the elastic steel plate, and the inner side of the U-shaped connecting piece is sleeved on the sleeve column.

[0013] Furthermore, two brackets of the longitudinal buffer mechanism are arranged on both sides of the connecting piece along the side direction, and two or more longitudinal buffer mechanisms are installed between the hull and the buffer box along the side direction, and the connecting rods of the longitudinal buffer mechanisms at both side ends are arranged on the side facing the side of the ship.

[0014] Furthermore, the structure of the lateral buffer mechanism is the same as that of the longitudinal buffer mechanism.

[0015] The ship buffer fender device described in the present invention has a buffer groove for accommodating a buffer box at the bow of the hull, and a rubber fender for abutting against the sea is installed on the outside of the buffer box, and a buffer mechanism is installed between different relative walls of the buffer box and the buffer groove, including a longitudinal buffer mechanism along the bow and stern direction of the ship and a lateral buffer mechanism perpendicular to the bow and stern direction; when the ship contacts the offshore facility by abutting, the rubber fender is compressed and drives the buffer box to move toward the inner wall of the buffer groove. In this process, each buffer mechanism absorbs the impact force caused by the abutment, thereby achieving buffering energy absorption. As for the longitudinal buffer mechanism, when the buffer box and the hull are squeezed by relative movement, on the one hand, the impact force is absorbed by the deformation of the buffer member, and on the other hand, the direction of the buffer member is adjusted by the hinged end of the connecting rod and the rotating rod, thereby better achieving buffering. The ship buffer fender device can effectively improve the overall impact resistance and energy absorption capacity of the bow fender of the ship through the longitudinal buffer mechanism, and greatly reduce the possibility of damage to the rubber fender due to excessive deformation; when heaving occurs due to the influence of waves, the lateral buffer mechanisms on both sides can reduce the relative movement between the buffer box and the offshore facilities, thereby improving the stability of the ship and increasing the safety of personnel boarding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a ship buffer fender device.

[0017] Figure 2 yes Figure 1 The schematic diagram of the cross-sectional structure of the ship buffer fender device at AA is shown.

[0018] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of the ship buffer fender device at BB is shown.

[0019] Figure 4 It is a schematic diagram of the connection structure between the buffer box and the rubber fender.

[0020] Figure 5 It is a structural diagram of the longitudinal buffer mechanism.

[0021] Figure 6 It is a structural diagram of a rubber fender. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] If there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] The invention provides a ship buffer fender device.

[0026] The ship buffer fender device of this embodiment includes a buffer groove 11 recessed in the bow of the hull 1, and a buffer box 2 movably arranged in the buffer groove; a longitudinal buffer mechanism 3 and a lateral buffer mechanism 4 are installed between the buffer box and the buffer groove along the bow and stern directions and the side directions of the ship respectively, and a rubber fender 5 is installed on the outside of the buffer box; the longitudinal buffer mechanism includes two brackets 31 and an elastic buffer member 32, the two brackets are installed on the wall of one of the buffer groove and the buffer box, the other of the buffer groove and the buffer box is connected to the middle part of the buffer member by a connecting member 33, and a connecting rod 34 is fixedly installed at one end of the buffer room and a rotating rod 35 is hinged at the other end, and the other ends of the connecting rod and the rotating rod are hinged to the two brackets respectively.

[0027] like Figure 1-6As shown, a buffer tank for accommodating a buffer box is provided at the bow of the hull, and a rubber fender for contacting the sea is installed on the outside of the buffer box, and a buffer mechanism is installed between different relative walls of the buffer box and the buffer tank, including a longitudinal buffer mechanism along the bow and stern direction of the ship and a lateral buffer mechanism perpendicular to the bow and stern direction; when the ship contacts the offshore facility by contacting, the rubber fender is compressed and drives the buffer box to move toward the inner wall of the buffer tank. In this process, each buffer mechanism absorbs the impact force caused by the contact, thereby achieving buffering energy absorption. As for the longitudinal buffer mechanism, when the buffer box and the hull move relative to each other and are squeezed, on the one hand, the impact force is absorbed by the deformation of the buffer member, and on the other hand, the direction of the buffer member is adjusted by the hinged end of the connecting rod and the rotating rod, thereby better achieving buffering.

[0028] The ship buffer fender device is provided with a fender groove on the outside of the buffer box 2, and the rubber fender 5 is installed in the fender groove to improve the installation strength and working stability of the rubber fender; the upper and lower ends of the outer side of the buffer box 2 are extended outward with clamping plates 21, and the fender groove is between the two clamping plates. The rubber fender 5 is installed between the clamping plates at the upper and lower ends, and there is a fixing member 6 that passes through the clamping plates and the rubber fender at the upper and lower ends and fixes them to each other, so as to stably fix the rubber fender on the buffer box; the fixing member can be a bolt and nut pair, or a long rivet or other existing device or structure for fixing different parts to each other. The inner side of the rubber fender 5 is built with a rigid frame 51 and a rigid sleeve 52 for the fixing member 6 to pass through. The rigid frame and the rigid sleeve are fixed to each other through a connecting member 53. The rigid frame, the rigid sleeve and the connecting member can all be made of steel to improve the structural strength of the rubber fender, and the rigid sleeve is used to ensure the convenience of connection with the buffer box. The outer side of the rubber fender is not provided with a rigid part, but only with rubber material to ensure its buffering performance. In addition, the rubber fender 5 can also be installed on both sides of the buffer tank at the bow of the hull 1, and the rubber fender 5 extends along the bow of the hull to the side of the ship to avoid collision at this position.

[0029] The buffer member 32 of the longitudinal buffer mechanism 3 of the ship buffer fender device can be a spring, a rubber spring or other elastic device, or can be Figure 5As shown, it includes several elastic steel plates stacked in sequence, and a series of parts passing through each elastic steel plate and fixing them to each other, and the connecting member 33 is also set through the elastic steel plate; when the push-up operation is performed, the stacked elastic steel plate group realizes energy absorption and buffering through compression deformation, and can effectively reduce stress concentration, avoid tearing, slipping and other phenomena of the buffer mechanism and the rubber fender, so as to better protect various components, improve the stability of the push-up and the safety of passengers boarding. In addition, all the elastic steel plates are arc-shaped with the same curvature, and the width of the stacked elastic steel plates is reduced in sequence, which can further improve the buffering performance and reduce stress concentration. In addition, a sleeve column 22 is provided on the side of the buffer box 2, and the connecting member 33 is U-shaped, and the U-shaped ends of the connecting member are set through the elastic steel plate, and the U-shaped inner side of the connecting member is sleeved on the sleeve column, so that when the buffer box is under pressure, the sleeve column can be directly pressed on the elastic steel plate to avoid the connecting member being damaged due to excessive force, and the convenience of connecting the buffer box and the longitudinal buffer mechanism can be improved to facilitate assembly and disassembly and maintenance. In addition, the two brackets 31 of the longitudinal buffer mechanism 3 are arranged on both sides of the connecting member 33 along the side direction, and two or more longitudinal buffer mechanisms are installed between the hull 1 and the buffer box 2 along the side direction. The connecting rods of the longitudinal buffer mechanisms at both side ends are arranged on the outside, that is, on the side facing the side of the ship, and the rotating rod is arranged on the inside, which is also the opposite side of the two longitudinal buffer mechanisms, so that the deformation and force of the buffer are directed toward the center of the ship, so as to provide more stable buffering, reduce its impact on both sides and alleviate the lateral shaking of the ship.

[0030] In the ship buffer fender device, the structure of the lateral buffer mechanism 4 can be the same as that of the longitudinal buffer mechanism 3, or can be other buffer structures with springs.

[0031] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A ship buffer fender device, comprising a rubber fender (5), characterized in that: A buffer groove (11) is provided inwardly at the bow of a hull (1), and a buffer box (2) is movably provided in the buffer groove; a longitudinal buffer mechanism (3) and a lateral buffer mechanism (4) are respectively installed between the buffer box and the buffer groove along the bow and stern directions and the side directions of the ship, and a rubber fender (5) is installed on the outer side of the buffer box; the longitudinal buffer mechanism comprises two brackets (31) and a buffer member (32) having elasticity, the two brackets being installed on the wall surface of one of the buffer groove and the buffer box, the other of the buffer groove and the buffer box being connected to the middle part of the buffer member via a connecting member (33), and a connecting rod (34) is fixedly installed at one end of the buffer room and a rotating rod (35) is hinged at the other end, and the other ends of the connecting rod and the rotating rod are respectively hinged to the two brackets.

2. The ship buffer fender device according to claim 1, characterized in that: A fender groove is provided on the outer side of the buffer box (2), and the rubber fender (5) is installed in the fender groove.

3. The ship buffer fender device according to claim 2, characterized in that: Clamps (21) extend outwardly from the upper and lower ends of the outer side of the buffer box (2), a fender groove is formed between the two clamps, a rubber fender (5) is installed between the clamps at the upper and lower ends, and a fixing member (6) passes through the clamps at the upper and lower ends and the rubber fender and fixes them to each other.

4. The ship buffer fender device according to claim 3, characterized in that: A rigid frame (51) and a rigid sleeve (52) through which a fixing member (6) passes are built into the inner side of the rubber fender (5), and the rigid frame and the rigid sleeve are fixed to each other via a connecting member (53).

5. The ship buffer fender device according to any one of claims 1 to 4, characterized in that: Rubber fenders (5) are installed at both sides of the buffer tank at the bow of the hull (1), and the rubber fenders extend along the bow of the hull to the side of the ship.

6. The ship buffer fender device according to claim 1, characterized in that: The buffer member (32) of the longitudinal buffer mechanism (3) comprises a plurality of elastic steel plates stacked in sequence, and a series member passing through each elastic steel plate and fixing them to each other, and a connecting member (33) passing through the elastic steel plate.

7. The ship buffer fender device according to claim 6, characterized in that: All the elastic steel plates are arc-shaped with the same curvature, and the widths of the stacked elastic steel plates decrease successively.

8. The ship buffer fender device according to claim 6, characterized in that: A sleeve column (22) is provided on the side of the buffer box (2), and the connecting piece (33) is U-shaped, with both ends of the U-shaped connecting piece passing through the elastic steel plate, and the inner side of the U-shaped connecting piece is sleeved on the sleeve column.

9. The ship buffer fender device according to claim 6, characterized in that: Two brackets (31) of the longitudinal buffer mechanism (3) are arranged on both sides of the connecting piece (33) along the side direction, and two or more longitudinal buffer mechanisms are installed between the hull (1) and the buffer box (2) along the side direction, and the connecting rods of the longitudinal buffer mechanisms at both side ends are arranged on the side facing the side of the ship.

10. The ship buffer fender device according to any one of claims 6 to 9, characterized in that: The structure of the lateral buffer mechanism (4) is the same as that of the longitudinal buffer mechanism (3).

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