CN215971987U

CN215971987U - Marine landing stage device that rides that possesses wave compensation function

Info

Publication number: CN215971987U
Application number: CN202121704058.6U
Authority: CN
Inventors: 蔺刚; 时占起; 张艳丽
Original assignee: Tsc Offshore Engineering And Research Institute Qingdao Co ltd
Current assignee: Tsc Offshore Engineering And Research Institute Qingdao Co ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-03-08
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a marine boarding trestle device with a wave compensation function, which comprises a compensation base, a boarding trestle and a lapping mechanism, wherein the boarding trestle is connected with a bow through the compensation base, the boarding trestle is connected with a pile through the lapping mechanism, the boarding trestle comprises a first corridor and a second corridor, the first corridor and the second corridor are hinged, a third reset spring group is connected between the first corridor and the second corridor, the second corridor can reset and rotate relative to the first corridor under the action of the third reset spring group to be parallel to the axis of the first corridor, the lapping mechanism comprises a fixing part and a hook head part, the fixing part is connected with the second corridor, and the hook head part is hinged with the fixing part and can form a jaw for accommodating the pile together with the fixing part at the tail end of the hook head part. The utility model has the advantages of exquisite structural design, convenient lap joint, low production and manufacturing cost and excellent compensation performance, and is beneficial to popularization and application.

Description

Marine landing stage device that rides that possesses wave compensation function

Technical Field

The utility model relates to the technical field of ship engineering equipment, in particular to a ship boarding trestle device with a wave compensation function.

Background

In the offshore operation, personnel transportation and material supply are often required to be carried out between a ship and an ocean platform, the boarding trestle is an important matched device for connecting the ship and the ocean platform, but the ocean environment is severe, the floating body platforms such as the ship and the like can generate irregular motions such as rolling, pitching and heaving under the action of stormy waves, the boarding trestle can move along with the boarding trestle, the safety of workers when boarding is seriously influenced, and when the stormy waves are large, the workers can not carry out safe and effective operation. Traditional landing trestle that steps on adopts the lapped mode to be connected with boats and ships or ocean platform, and adaptability is poor and the safety risk is high. The boarding trestle device capable of performing active or passive compensation in multiple degrees of freedom also exists in the prior art, but the boarding trestle device is large in size, is not suitable for light ships and high in production and manufacturing cost, and is not beneficial to popularization and application.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a marine boarding trestle device with a wave compensation function, which solves the technical problems of poor compensation performance, poor adaptation, complex structure and high production and manufacturing cost of the boarding trestle device in the prior art, and has the technical effects of exquisite structure, excellent compensation performance, convenient lap joint and low production and manufacturing cost. The adopted technical scheme is as follows:

the utility model provides a marine landing stage device of taking advantage of that possesses wave compensation function, includes the compensation base, steps on landing stage and bridging mechanism, it is connected with the prow through the compensation base to step on the landing stage, it passes through bridging mechanism and is connected with the stake to step on the landing stage, it includes first corridor and second corridor to step on the landing stage, first corridor and second corridor are articulated mutually, just still be connected with third reset spring group between first corridor and second corridor, the second corridor can reset the gyration in order to be parallel with first corridor axis in first corridor relatively under the effect of third reset spring group, bridging mechanism includes fixed part and gib head portion, the second corridor is connected to the fixed part, gib head portion and fixed part are articulated and can enclose the keeping silent of synthetic holding stake jointly at its end and fixed part.

On the basis of the technical scheme, the outer arc line of the hook head part in contact with the pile is an involute curve so as to facilitate the pile to be clamped into the jaw from the jaw, and the inner arc line of the hook head part in contact with the pile is an involute curve to prevent the pile in the jaw from being separated.

On the basis of the technical scheme, the two ends of the hook head part are respectively provided with a balance weight, and the moment balance can be realized at the hinged part of the hook head part and the fixing part.

On the basis of the technical scheme, the end, close to the compensation base, of the boarding trestle is rotatably connected with the stepping plate, the boarding trestle is rotatably connected with the stepping plate through a stop plate, and the stop plate can avoid downward rotation of the stepping plate.

On the basis of the technical scheme, the third return spring group comprises two third springs and two third springs are symmetrically arranged on two sides of the hinge joint of the first corridor and the second corridor, and two ends of the first springs are hinged to the first corridor and the second corridor respectively.

On the basis of the technical scheme, the compensation base comprises a horizontal swing mechanism, an axial swing mechanism and a luffing mechanism and is used for compensating six-degree-of-freedom motion of the ship body in real time; horizontal rotation mechanism includes rotates the frame of being connected and is used for the first drive unit of driving the frame gyration with the bow, axial rotation mechanism include with step on the rotation connecting portion and the first reset spring group that the landing stage axis is parallel, the frame upwards with rotate connecting portion articulated and through rotate connecting portion with step on the landing stage and rotate and be connected, just step on the landing stage under the effect of first reset spring group and can reset the gyration relatively the frame axial, become width of cloth mechanism including locating the second drive unit on the frame, the tailpiece of the piston rod of second drive unit is used for driving with rotation connecting portion are articulated to rotate connecting portion every single move and are adjusted.

On the basis of the technical scheme, the engine base is rotationally connected with the bow through a rotary support bearing; the rotary connecting part comprises a sleeve and a shaft lever which is rotatably connected with the sleeve, the sleeve is hinged with the base, and the shaft lever is connected with the boarding trestle; the first reset spring group comprises two first springs which are symmetrically arranged on two sides of the rotating connecting part, and the first springs are respectively abutted against the sleeve and the boarding trestle.

On the basis of the technical scheme, the first spring comprises an arc-shaped plate spring with a downward arc opening, the arc-shaped plate spring is abutted to the boarding trestle upwards, and two free ends of the arc-shaped plate spring extend inwards horizontally to form two lug plates abutted to the sleeves.

On the basis of the technical scheme, the device further comprises a second reset spring set, the two ends of the shaft lever extend out of the sleeve and are connected with the boarding trestle, the second reset spring set comprises a second spring sleeved between the shaft lever and the sleeve, and the two ends of the second spring are respectively axially abutted to the sleeve and the shaft lever.

On the basis of the technical scheme, the axes of the compensation base, the boarding trestle and the lapping mechanism are coplanar.

Advantageous effects

The boarding trestle comprises a first corridor and a second corridor which are hinged, namely the boarding trestle can automatically compensate the horizontal rotation of a ship body, and meanwhile, a third reset spring group is connected between the first corridor and the second corridor, and not only can the second corridor be axially and forwardly righted by the third reset spring group, but also pile holding operation of a lapping mechanism is facilitated, and meanwhile, the second corridor can be righted in time to reset after being deflected relative to the first corridor.

The lap joint mechanism is reasonable in design and convenient to lap joint, the hook head part can automatically compensate the heave movement of the boarding trestle, specifically, the balance weights at two ends of the hook head part are in moment balance at the hinged part of the hook head part and the fixed part, namely, the hook head part can always keep a horizontal state, and the outer arc line and the inner arc line of the hook head part, which are in contact with the pile, respectively comprise a section of involute, so that the pile can be conveniently clamped into the jaw and is not easy to separate, the lap joint operation can be conveniently carried out, and the lap joint can be quickly realized.

The compensation base is exquisite in design, irregular motions such as rolling, pitching and heaving of a ship body can be compensated in real time, namely position compensation is provided on six degrees of freedom, the load of the joint of the boarding trestle and the ship body is reduced, the stability of the boarding trestle is kept, in addition, an axial rotation mechanism used for providing axial rotation compensation in the compensation base further comprises a first reset spring set, the first reset spring set can provide reset rotation force after the boarding trestle swings and deflects left and right to avoid overturning of the boarding trestle, in addition, a second reset spring set arranged between the sleeve and the shaft rod can flexibly buffer front and back impact force between the boarding trestle and the compensation base, the vibration reduction function is achieved, the balance stability of the boarding trestle is improved, and the use risk is reduced.

The utility model has simple structure and reasonable design, is beneficial to realizing light design and reducing the production and manufacturing cost, and is suitable for ships with various volumes; meanwhile, the utility model can adapt to various sea condition requirements, can actively or passively compensate irregular motions such as ship rolling, pitching, heaving and the like, and is beneficial to improving the use safety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary of the utility model, and that other embodiments can be derived from the drawings provided by those skilled in the art without inventive effort.

FIG. 1: the utility model is used and installed schematically;

FIG. 2: the structure schematic diagram of the front view of the boarding trestle device is shown;

FIG. 3: the utility model discloses a structural schematic diagram of a bottom view of a boarding trestle device;

FIG. 4: the utility model discloses a structure schematic diagram of a fixed part and a second corridor;

FIG. 5: the structure of the hook head part is shown schematically;

FIG. 6: the structure schematic diagram of the compensation base is shown in the utility model;

FIG. 7: the cross section structure schematic diagram of the top view of the rotating connecting part is shown in the utility model;

Detailed Description

The utility model is further illustrated by the following figures and examples:

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

For convenience of description, the revolution of the boarding trestle device on the horizontal plane is defined as horizontal revolution, the revolution of the boarding trestle device on the vertical plane of the axis of the first corridor 21 is defined as axial revolution, and the revolution of the boarding trestle device on the plane jointly determined by the axis of the first corridor 21 and the axis of the compensation base 1 is defined as variable-amplitude revolution in the application.

As shown in fig. 1, a marine landing stage device that rides that possesses wave compensation function for ship, including compensation base 1, landing stage 2 and bridging mechanism 3, landing stage 2 is connected with the bow through compensation base 1, landing stage 2 is connected with the pile on the platform through bridging mechanism 3, wherein, the pile includes a horizontal pole, and this horizontal pole is connected between two montants on the platform dismantled and assembled.

As shown in fig. 2 to 3, the boarding trestle 2 includes a first corridor 21 and a second corridor 22, the first corridor 21 is connected with the bow of the ship through the compensation base 1, one end of the first corridor 21 close to the bow of the ship is further connected with a step-shaped pedal, the first end of the second corridor 22 is hinged to the first corridor 21, and a third return spring set 23 is further connected between the first end of the second corridor 22 and the first corridor 21, the third return spring set 23 includes two third springs, the two third springs are symmetrically disposed on two sides of the rotary connection between the first corridor 21 and the second corridor 22, specifically, the first end of the third spring is hinged to the first corridor 21 through a connecting cylinder, the second end of the third spring is hinged to the second corridor 22 through a connecting rod, and the tail end of the connecting rod can be sleeved in the connecting cylinder, so that when the third spring is stretched or compressed, the connecting rod and the connecting cylinder can play a role of guiding for the third spring, The righting effect improves the resetting performance of the equipment.

When the second corridor 22 deflects relative to the first corridor 21, the third return spring group 23 can play a role in damping and shock absorption on one hand, and the phenomenon that the deflection angle of the second corridor 22 relative to the first corridor 21 is too large is avoided; on the other hand, the second corridor 22 can be driven to rotate and reset, so that the second corridor 22 is parallel to the axis of the first corridor 21, namely, when the ship body is driven by wind and waves to displace on the horizontal plane, the third reset spring group 23 can realize automatic compensation, and the use safety of the boarding trestle 2 is ensured.

As shown in fig. 4 to 5, the second end of the second corridor 22 is connected with the lapping mechanism 3; the lapping mechanism 3 comprises a fixing part 31 and a hook head part 32, the fixing part 31 comprises two fixing plates which are symmetrically arranged, the two fixing plates are upwards fixedly arranged on the bottom surface of the second corridor 22, the symmetrical axes of the two fixing plates are parallel to the axis of the second corridor 22, and the tail ends of the fixing plates are provided with fork-shaped notches.

The hook head part 32 is embedded between and hinged with the two fixing plates, and a long hole capable of containing the hook head part is arranged on the bottom surface of the second corridor 22. The two ends of the hook head part 32 are provided with counterweights, and the hinged part of the hook head part 32 and the fixed part 31 can be in moment balance, namely, no matter how the second corridor 33 ascends and descends along with the ship, the hook head part 32 can be always in a state of moment balance, so that the position compensation can be automatically carried out on the ship body ascending and descending. In this embodiment, the hook head portion 32 is provided with a through hole for being hinged to the fixing portion 31, the weight is the weight of the hook head portion 32 at two sides of the through hole, and the weight of the hook head portion 32 at two sides of the through hole is balanced with respect to the central moment of the through hole. Wherein, the hook-shaped end of the hook head part 32 and the fork-shaped notch on the fixing plate can jointly enclose a jaw 33 for accommodating the pile; and the outer arc line of gib head portion 32 and stake contact is one section involute to make things convenient for the stake to block into in keeping silent 33 from keeping silent 33 is outer, the inner arc line of gib head portion 32 and stake contact is one section involute to prevent that the stake in keeping silent 33 from deviating from. That is, the stud can collide and push the hook head 32 to rotate to be clamped into the jaw 32, and after the stud is clamped into the jaw 32, the involute design at the inner arc of the jaw 33 can prevent the stud from falling out. The structure design can lead the lapping operation to be simple and easy, realize the lapping rapidly, has low technical requirements on operators and is beneficial to popularization and application. In addition, in order to avoid the hook head 32 from pitching relative to the fixing portion 31 when not in use, a limiting mechanism (not shown) is further provided, and the limiting mechanism comprises a pin which can vertically penetrate through the two fixing plates and the hook head 32 to realize the relative fixing of the fixing portion 31 and the hook head 32.

Step on the landing stage 2 and be close to the one end of compensation base 1 and rotate and be connected with 24 of marking time, just step on landing stage 2 and mark time 24 and rotate the junction and be equipped with the backstop board, the backstop board can just upwards support forward and mark time 24, avoids mark time 24 gyration downwards. When the ship is driven by wind waves to collide with the steps 24, the steps 24 can rotate upwards, and the equipment is prevented from being damaged by rigid impact.

As shown in fig. 6 to 7, the compensation base 1 includes a horizontal swing mechanism, an axial swing mechanism and a luffing mechanism, and is configured to compensate motion of the hull in six degrees of freedom in real time, that is, when wind and waves drive the hull to generate irregular motion such as rolling, pitching, or heaving, the compensation base 1 may actively or passively compensate in real time. The horizontal slewing mechanism comprises a base 11 rotationally connected with a bow deck and a first driving unit 12 used for driving the base 11 to slew, a slewing support bearing is sleeved at the rotational connection position of the base 11 and the bow deck, the first driving unit 12 comprises a motor and a speed reducer, and the first driving unit 12 can transmit slewing motion to the base 11. Before the lapping, when the wind waves drive the ship body to irregularly move, the first driving unit 12 acts and drives the base 11 to rotate, and the horizontal rotating motion of the ship body is actively compensated; when the boarding device is used, when the wind waves drive the ship body to irregularly move, the first driving unit 12 is closed, and the horizontal rotation of the ship body can be passively compensated due to the fact that the base 11 is rotationally connected with the bow deck.

The axial rotation mechanism comprises a rotation connecting part 13 parallel to the axis of the boarding trestle 2 and a first return spring set 14, the rotation connecting part 13 comprises a sleeve 131 and a shaft rod 132 rotationally connected with the sleeve 131, the first end of the sleeve 131 is hinged with the machine base 11, the middle section of the sleeve 131 is symmetrically connected with two horizontal wing plates, and two ends of the shaft rod 132 extend out of the sleeve 131 and are upwards fixedly connected with the bottom surface of the first corridor 21; namely, when the wind waves drive the ship body to irregularly move, the axial slewing mechanism can perform passive compensation on the axial slewing of the ship body;

first reset spring group 14 includes two first springs, two rotation connecting portion 13 both sides are located to first spring symmetry branch, first spring includes arc leaf spring that the arc mouth is down, the arc leaf spring upwards with first corridor 21 bottom surface butt, the inside level in both free ends of arc leaf spring extends the both ears board that forms with both wings board butt or rigid coupling. Therefore, when the sleeve 131 is driven by the ship body to swing left and right and rotate axially, the first return spring group 14 can play a role in damping and dissipating energy of the left and right swing impact force of the sleeve 131 on one hand, and can provide axial return rotary force on the other hand, so that the situations that the left and right swing amplitude of the sleeve 131 is too large and the first corridor 21 and the second corridor 22 overturn are avoided.

As shown in fig. 7, the device further includes a second return spring set 16, the second return spring set 16 includes two second springs sleeved between the shaft rod 132 and the sleeve 131, the two second springs are axially disposed in a front-back direction and are both in a compressed state, and two ends of the two second springs are respectively abutted to inner annular surfaces of the sleeve 131 and the shaft rod 132. So, when sleeve 131 sways around axially under the hull drives, this second spring can play the effect of shock attenuation energy dissipation to sleeve 131 sways impact force around, avoids stepping on the emergence rigidity collision between trestle 2 and compensation base 1, is favorable to improving the balanced stability of stepping on trestle 2, reduces the use risk. I.e. when the wind waves drive the hull to displace along the axial direction of the boarding trestle 2, the second return spring set 16 can automatically compensate the position through stretching, in other embodiments of the utility model, the second spring can be other elastic bodies, such as rubber cylinders, which can provide axial shock absorption and energy dissipation effects.

The luffing mechanism comprises a second driving unit 15 arranged on the machine base 11, and the second driving unit 15 comprises a luffing oil cylinder. The amplitude variation oil cylinder is hinged on the machine base 11, the piston rod end of the amplitude variation oil cylinder is hinged with the bottom surface of the sleeve 131, and the amplitude variation oil cylinder is driven to stretch and adjust the pitch angle of the boarding trestle 2. Before the lapping, when the wind waves drive the ship body to move irregularly, the second driving unit 15 acts to actively compensate the heave motion of the ship body; when the boarding device is used, when the wind waves drive the ship body to irregularly move, the second driving unit 15 is shut down, and passive compensation is carried out on the heave movement of the ship body. The axes of the compensation base 1, the boarding trestle 2 and the lapping mechanism 3 are coplanar.

Principle of operation

1) Before lap joint

After the ship body approaches the pile on the ocean platform, the first driving unit 12 and the second driving unit 15 actively compensate to adjust the posture of the lapping mechanism 3, so that the jaw of the lapping mechanism 3 abuts against the pile, then the second driving unit 15 continues to act, the pile collides and drives the hook head 32 to rotate clockwise (as shown in fig. 3), the hook head 32 rotates clockwise to open the jaw 33, so that the pile enters the jaw 33, and then the hook head 32 rotates anticlockwise under the driving of self moment balance to close the jaw 33, so that the pile can be firmly embraced in the jaw 33. In the process of embracing the pile by the lapping mechanism 3, the first corridor 21 and the second corridor 22 are hinged, so that the automatic position compensation can be carried out on the horizontal rotation of the ship body, and the phenomenon that the first corridor 21 deflects in the lapping process to influence the lapping operation is avoided; when the external force driving the first corridor 21 and the second corridor 22 to deflect is weakened, the third return spring set 23 can drive the first corridor 21 and the second corridor 22 to return and return, the axis is kept parallel, and the stability of the boarding trestle is improved.

2) In the using process

After the lap joint is finished, the first driving unit 12 and the second driving unit 15 are shut down, and the compensation base starts a passive compensation mode, so that the load of each connecting position point is reduced, and the use safety of the equipment is improved.

3) Lap joint release

When the connection between the lapping mechanism 3 and the pile is released, the worker can drive the hook head 32 to rotate clockwise to open the jaw 33, then drive the second driving unit 15 to move to retract the second corridor 22, so that the pile is separated from the jaw 33, and the lapping is released.

The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.

Claims

1. The marine boarding trestle device with the wave compensation function is characterized by comprising a compensation base (1), a boarding trestle (2) and a lapping mechanism (3), wherein the boarding trestle (2) is connected with a bow through the compensation base (1), the boarding trestle (2) is connected with pile columns through the lapping mechanism (3), the boarding trestle (2) comprises a first corridor (21) and a second corridor (22), the first corridor (21) and the second corridor (22) are hinged, a third reset spring group (23) is further connected between the first corridor (21) and the second corridor (22), the second corridor (22) can reset and rotate relative to the first corridor (21) under the action of the third reset spring group (23) to be parallel to the axis of the first corridor (21), the lapping mechanism (3) comprises a fixing part (31) and a hook head part (32), the fixing part (31) is connected with the second corridor (22), and the hook head part (32) is hinged with the fixing part (31) and can be enclosed with the fixing part (31) at the tail end to form a jaw (33) for accommodating the pile.

2. The marine boarding trestle device with heave compensation function according to claim 1, characterized in that the outer arc line of the hook head part (32) contacting the pile is an involute curve to facilitate the pile to be clamped into the jaw (33) from the outside of the jaw (33), and the inner arc line of the hook head part (32) contacting the pile is an involute curve to prevent the pile in the jaw (33) from being pulled out.

3. The marine boarding bridge device with heave compensation function according to claim 2, wherein the hook head part (32) is provided with counterweights at both ends thereof, and the moment balance can be achieved at the hinge joint of the hook head part (32) and the fixing part (31).

4. The marine boarding trestle device with the wave compensation function according to claim 1, characterized in that one end of the boarding trestle (2) close to the compensation base (1) is rotatably connected with a step (24), and a stop plate is arranged at the rotary connection position of the boarding trestle (2) and the step (24), and can prevent the step (24) from rotating downwards.

5. The marine boarding bridge device with heave compensation function according to claim 1, wherein the third return spring set (23) comprises two third springs symmetrically disposed on both sides of the hinge of the first corridor (21) and the second corridor (22), and both ends of the third springs are respectively hinged to the first corridor (21) and the second corridor (22).

6. The marine boarding trestle device with the wave compensation function according to any one of claims 1 to 5, characterized in that the compensation base (1) comprises a horizontal slewing mechanism, an axial slewing mechanism and a luffing mechanism, and is used for compensating six-degree-of-freedom motion of a ship body in real time; the horizontal slewing mechanism comprises a base (11) rotationally connected with the bow and a first driving unit (12) for driving the base (11) to slew; the axial rotation mechanism comprises a rotation connecting part (13) parallel to the axis of the boarding trestle (2) and a first return spring set (14), the machine base (11) is upwards hinged with the rotation connecting part (13) and is rotationally connected with the boarding trestle (2) through the rotation connecting part (13), and the boarding trestle (2) can axially return and rotate relative to the machine base (11) under the action of the first return spring set (14); the amplitude variation mechanism comprises a second driving unit (15) arranged on the base (11), and a piston rod end of the second driving unit (15) is hinged with the rotating connecting part (13) and used for driving the rotating connecting part (13) to adjust the pitch.

7. The marine boarding trestle device with heave compensation function according to claim 6, characterized in that the machine base (11) is rotatably connected with the bow through a slewing support bearing; the rotary connecting part (13) comprises a sleeve (131) and a shaft lever (132) rotatably connected with the sleeve (131), the sleeve (131) is hinged with the base (11), and the shaft lever (132) is connected with the boarding trestle (2); the first return spring group (14) comprises two first springs which are symmetrically arranged on two sides of the rotary connecting part (13) respectively and are abutted against the sleeve (131) and the boarding trestle (2).

8. Marine boarding bridge arrangement with heave compensation according to claim 7, characterized in that the first spring comprises a downward-arched leaf spring, which upwards abuts the boarding bridge (2), and the free ends of which extend horizontally inwards to form two lug plates abutting the sleeve (131).

9. The marine boarding trestle device with the heave compensation function according to claim 7, further comprising a second return spring set (16), wherein two ends of the shaft rod (132) extend out of the sleeves (131) to be connected with the boarding trestle (2), the second return spring set (16) comprises a second spring sleeved between the shaft rod (132) and the sleeves (131), and two ends of the second spring are respectively and axially abutted against the sleeves (131) and the shaft rod (132) to achieve axial shock absorption and energy dissipation.

10. The marine boarding trestle device with heave compensation function according to any of claims 7 to 9, characterized in that the axes of the compensation base (1), the boarding trestle (2) and the lapping mechanism (3) are coplanar.