A precision-cushioned fender davit for ships

Abstract

This invention relates to the field of wharf fender technology, specifically disclosing a precision buffer fender gantry for ships. It includes a concrete wharf wall, an installation plate on the exterior of the wharf wall, and a fender plate on the front side of the installation plate. A gantry main body is fixedly installed on the upper surface of the wharf wall, and a winch is mounted on the upper surface of the gantry main body. The winch is connected to the top of the installation plate via a connecting steel cable. The installation plate is slidably connected to a guide rail fixedly installed on the outer surface of the wharf wall. This precision buffer fender gantry for ships employs a novel structural design. When the hull just contacts the fender plate, two pressure sensors inside the fender plate detect the pressure value. The difference in the values ​​from the two pressure sensors determines the impact direction of the hull. Air is then injected into an adjusting airbag via a delivery air pump to adjust the angle between the buffer rubber column and the fender plate, ensuring frontal contact between the fender plate and the hull and reducing lateral forces.

Description

Technical Field

[0001] This invention relates to the field of ship fender technology, specifically to a ship fender davit for precise cushioning. Background Technology

[0002] Ship fenders are typically installed on docks and are important devices used to absorb the collision energy generated when ships berth or moor, thereby protecting the ship and dock structure from damage. They prevent the hull, railings, etc. from being scratched, squeezed, or destroyed when colliding with the dock. The development of new energy docks is a representative of the port sector's practice of green and low-carbon development concepts. By using green electricity from wind and solar power and building supporting energy storage systems, the fluctuation of green electricity is smoothed out, providing the infrastructure for the berthing and maintenance of ships in the port. By using fender gantry facilities, safe berthing operations and dock protection are achieved.

[0003] In the prior art, Chinese patent application number CN202410046289.4 discloses a multi-stage buffer fender davit, including a protective plate and a receiving box constituting the davit body, and a base connected to the receiving box by a rubber sleeve and a spring. The fender davit also includes a load-bearing lifting mechanism, which is connected to the davit body. The load-bearing lifting mechanism is used to change the overall height of the davit in real time according to the water level change. At the same time, the load-bearing lifting mechanism is also used to automatically lift the davit after the ship's side contacts the fender davit, in order to reduce the ship's tendency to tilt when braking. It can automatically adjust the overall height of the fender and davit through buoyancy load lifting, ensuring that the protection effect on the ship will not be reduced due to changes in water level. At the same time, it can use the impact force generated by the ship's side docking to guide the change of buoyancy structure to achieve the effect of reducing the inertial tilt of the ship, resulting in better performance.

[0004] For example, in the prior art, Chinese Patent Application No. 202411495506.4 discloses a multi-buffered fender davit, including a main support platform, an anti-corrosion cover, roller grooves, roller components, a self-adjusting fender mechanism, a primary buffer mechanism, and a secondary buffer mechanism. The main support platform has secondary support platforms slidably connected to both sides, and a self-adjusting fender mechanism is provided on the main support platform. A fender plate is connected to the self-adjusting fender mechanism, and a primary buffer mechanism is provided on the rear side of the fender plate. The secondary support platform has a secondary buffer mechanism inside, which can adaptively adjust its height according to changes in water level, allowing the ship's hull to stably contact the fender davit when docked at the shore, thereby buffering the ship's inertia and providing stable protection for the ship. Furthermore, the impact of waves and the ship on the fender davit enhances its buffering performance, thus improving its buffering effect.

[0005] For example, Chinese Patent Application No. 202510559012.6 discloses a protective fender gantry with a load-bearing lifting mechanism, belonging to the field of fender gantry technology. This invention includes a mounting frame fixed to the dock by bolts, with an integrally fixed guide rail on the outer side of the mounting frame and a through groove on the mounting frame. An adjustable seat is also provided on the outer side of the mounting frame, and a load-bearing lifting mechanism is provided on the adjustable seat. A limiting cylinder is fixedly installed on the rear side of the adjustable seat, and a negative pressure adsorption component for fixing the adjustable seat is provided on the inner side of the limiting cylinder. A cleaning component for cleaning the floating airbag is provided on the lower outer side of the adjustable seat. Under buoyancy, the fender gantry automatically lifts and adjusts its position height, avoiding the impact of waves on the adjustment accuracy, achieving precise buffering, and simultaneously achieving multiple buffering, effectively improving the buffering and protection effect on the ship.

[0006] Based on the above information, it can be seen that in the prior art, fenders are generally installed at the dock location to protect the ship from external contact by utilizing their own buffering force. However, in actual use, the ship is not completely parallel to the dock when it is docked. Therefore, there will be a certain angle between the hull and the fender when they come into contact. The component force generated by this angle will cause the buffer structure to move laterally. The lateral force can easily cause the rubber in the buffer structure to tear and be damaged. Summary of the Invention

[0007] The purpose of this invention is to provide a precision buffer fender davit for ships, in order to solve the problem mentioned in the background art that lateral forces can easily cause tearing and damage to the buffer rubber components.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a precision buffer fender gantry for ships, comprising a concrete dock wall, an installation plate installed on the outside of the dock wall, and a fender plate installed on the front side of the installation plate. A gantry main body is fixedly installed on the upper surface of the dock wall, and a winch is installed on the upper surface of the gantry main body. The winch is connected to the top of the installation plate via a connecting steel cable. The installation plate is slidably connected to a guide rail fixedly installed on the outer surface of the dock wall. The winch, in conjunction with the connecting steel cable, moves the installation plate up and down, causing the installation plate to slide outside the guide rail, thereby changing the height of the fender plate and allowing it to adapt to different... Depending on the water level, a circular mounting frame is fixedly installed on the outer surface of the mounting plate, and the buffer rubber column is connected to the mounting frame via an adjustment mechanism on the outer surface of the mounting frame. A first and second steel mounting plates are fixedly installed at the front and rear ends of the buffer rubber column. A steel inner lining plate is fixedly installed inside the fender, and a pressure sensor is fixedly installed on the surface of the inner lining plate. When the hull just comes into contact with the fender, the two pressure sensors inside the fender detect the pressure value. The impact direction of the hull is determined by the difference in the values ​​of the two pressure sensors. The pressure sensor communicates with a wireless controller fixedly installed on the upper surface of the gantry body via electrical signals.

[0009] Preferably, the adjustment mechanism includes an adjustment airbag fixedly installed between the first fixed plate and the fixed frame, and the adjustment airbag is connected to a delivery pump fixedly installed on the lower surface of the mounting plate through a first connecting pipe. Air is injected into the adjustment airbag by the delivery air pump to adjust the angle of the buffer rubber column and the fender, so that the fender is in frontal contact with the hull and the lateral force is reduced. The first fixed plate is rotatably connected to the fixed frame through a connecting block, and a connecting ball is fixedly installed at the middle position of the outer surface of the fixed frame.

[0010] Preferably, the regulating airbag is divided into a first cavity and a second cavity that are independent of each other. The first cavity is connected to the upper end of the connecting ball through a return pipe, and the second cavity is connected to the first connecting pipe.

[0011] Preferably, the outer surface of the connecting ball is in close contact with the inner wall of the first fixing plate, and a sealing ring is fixedly installed on the inner wall of the first fixing plate, and a hollow receiving groove is provided inside the buffer rubber column.

[0012] Preferably, the connecting ball has a hollow structure inside and stores rubber repair fluid inside. A first connecting pipe and a second connecting pipe are fixedly installed on the outside of the connecting ball. Under pressure, air in the accommodating groove is forced into the connecting ball through the first connecting pipe. At this time, the air flow speed is controlled by a solenoid valve, and a better buffering effect is achieved by slowly expelling the gas.

[0013] Preferably, a solenoid valve for controlling flow is fixedly installed on the outside of the first connecting pipe, and a fine nozzle connected to the groove inside the side wall of the buffer rubber column is fixedly installed at the front end of the second connecting pipe. The rubber repair agent inside the ball is evenly sprayed out from the fine nozzle through the second connecting pipe (the strip groove refers to the groove structure that is evenly distributed inside the side wall of the buffer rubber column. The grooves are connected by annular grooves and finally connected to the square groove at the bottom. The fine nozzle is located in the square groove at the bottom. The strip groove is a relatively sealed space, that is, it is not connected to the outside nor to the receiving groove). The rubber repair agent is used to automatically repair any cracks that may appear inside the buffer rubber column.

[0014] Preferably, the inner wall of the groove is coated with a polyethylene film to reduce the adhesion of rubber repair fluid.

[0015] Preferably, a buoyancy airbag for pushing the fender upward is fixedly installed on the rear side of the lower end of the fender, and a second connecting pipe for inflating the buoyancy airbag is fixedly installed on the side of the buoyancy airbag. The buoyancy airbag expands and generates a large buoyancy, which lifts the fender upward under the action of buoyancy, so that the fender as a whole is lifted out of the water surface, thereby reducing the corrosion of the fender by seawater or lake water.

[0016] Preferably, the bottom end of the second connecting pipe is connected to a third connecting pipe installed below the delivery pump via a three-way valve, and the third connecting pipe is connected to an external gas supply device.

[0017] Preferably, the second fixing plate has mounting grooves on its left and right sides, and the mounting grooves are slidably connected to the mounting bracket. The mounting bracket is fixedly installed on the rear surface of the fender plate, and a rubber friction pad is fixedly installed inside the mounting groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the ship's precision buffer fender davit adopts a novel structural design, the specific details of which are as follows:

[0019] 1. When a ship docks at a pier, there is a collision between the hull and the fender. At this time, the rigidity of the fender itself, together with the buffer rubber pillars connected to the fender, is used to buffer and protect the hull. When the hull just comes into contact with the fender, two pressure sensors inside the fender detect the pressure value. The different values ​​of the two pressure sensors determine the direction of the impact on the hull. Air is then injected into the regulating airbag by the air pump to adjust the angle of the buffer rubber pillars and the fender, so that the fender and the hull make frontal contact and reduce the lateral force.

[0020] Furthermore, by using a winch in conjunction with connecting steel cables to move the mounting plate up and down, the mounting plate slides outside the guide rail, thereby changing the height of the fender plate. This allows the fender plate to adapt to different water levels. Photovoltaic panels are installed on the outside of the wharf wall, and the electricity generated by the photovoltaic panels is stored in the energy storage device to power the winch and other electrical equipment of the device. In this process, the reflection of sunlight by seawater is used to achieve a higher utilization rate of sunlight, ultimately realizing new energy power supply.

[0021] 2. When the hull hits the fender, the buffer rubber column is squeezed under pressure. At this time, the accommodating groove space inside the pressure rubber column is compressed. Under pressure, the air in the accommodating groove is squeezed into the connecting ball through the first connecting pipe. At this time, the air flow speed is controlled by the solenoid valve, and the gas is slowly discharged to achieve a better buffering effect.

[0022] Furthermore, when air enters the connecting ball, the rubber repair agent inside the connecting ball is evenly sprayed out from the fine nozzle through the second connecting tube. The rubber repair agent is used to automatically repair any cracks that may appear inside the buffer rubber column. If there are no cracks inside the buffer rubber column, the buffer rubber column is reset and then the rubber repair agent is re-inhaled into the connecting ball under negative pressure.

[0023] Furthermore, some of the air in the connecting ball enters the first chamber of the regulating airbag through the return pipe. At this time, the pressure inside the first chamber increases, thereby improving the overall pressure resistance of the regulating airbag and reducing its large deformation under stress, which would affect the support effect.

[0024] 3. When no ships are docked at the pier, air is injected into the buoyancy airbag through the delivery pump and the second connecting pipe. At this time, the buoyancy airbag expands and generates a large buoyancy. Under the action of buoyancy, the fender is lifted upward, so that the entire fender is lifted out of the water surface, thereby reducing the corrosion of the fender by seawater or lake water and extending the overall service life. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the mounting plate structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the fender plate of the present invention;

[0028] Figure 4 This is a schematic diagram of the front outer surface structure of the mounting plate of the present invention;

[0029] Figure 5 This is a schematic diagram of the fixing frame structure of the present invention;

[0030] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0031] Figure 7 This is a schematic diagram showing the connection between the interior of the buffer rubber column and the refining nozzle of the present invention;

[0032] Figure 8 This is a schematic diagram of the back structure of the fender plate of the present invention;

[0033] Figure 9 This is a schematic diagram of the connection relationship between the buoyancy airbag and the adjustment airbag of the present invention;

[0034] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B;

[0035] Figure 11 This is a schematic diagram of the internal structure of the mounting slot of the present invention;

[0036] Figure 12 This is a schematic diagram of the internal structure of the adjustable airbag of the present invention.

[0037] In the diagram: 1. Dock wall; 2. Mounting plate; 3. Fender plate; 4. Main body of the gantry; 5. Winch; 6. Connecting steel rope; 7. Guide rail; 8. Lining plate; 9. Pressure sensor; 10. Fixing frame; 11. Buffer rubber column; 12. First fixing plate; 13. Second fixing plate; 14. Connecting block; 15. Adjusting airbag; 1501. First cavity; 1502. Second cavity; 1503. Return pipe; 16. First connecting pipe; 17. Delivery pump; 18. Connecting ball; 19. First connecting pipe; 20. Solenoid valve; 21. Second connecting pipe; 22. Fine spray nozzle; 23. Receptacle; 25. Buoyancy airbag; 26. Second connecting pipe; 27. Three-way valve; 28. Third connecting pipe; 29. ​​Mounting slot; 30. Mounting frame; 31. Friction pad; 32. Wireless controller. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-4In order to adjust the angle of the fender 3 so that it can be directly impacted by the ship, this embodiment provides the following technical solution, specifically: a dock wall 1 made of concrete, an installation plate 2 is installed on the outside of the dock wall 1, and a fender 3 is installed on the front side of the installation plate 2. A gantry body 4 is fixedly installed on the upper surface of the dock wall 1, and a winch 5 is installed on the upper surface of the gantry body 4. The winch 5 is connected to the top of the installation plate 2 through a connecting steel cable 6. The installation plate 2 is slidably connected to a guide rail 7 fixedly installed on the outer surface of the dock wall 1. A circular fixing frame 10 is fixedly installed on the outer surface of the installation plate 2, and the buffer rubber column 11 utilizes the outer surface of the fixing frame 10. The adjustment mechanism is connected to the fixed frame 10. The front and rear ends of the buffer rubber column 11 are fixedly installed with a steel first fixed plate 12 and a second fixed plate 13. The steel inner lining plate 8 is fixedly installed inside the fender plate 3, and a pressure sensor 9 is fixedly installed on the surface of the inner lining plate 8. The pressure sensor 9 communicates with the wireless controller 32 fixedly installed on the upper surface of the gantry body 4 via electrical signals. The adjustment mechanism includes an adjustment airbag 15 fixedly installed between the first fixed plate 12 and the fixed frame 10. The adjustment airbag 15 is connected to the delivery pump 17 fixedly installed on the lower surface of the mounting plate 2 through a first connecting pipe 16. The first fixed plate 12 is rotatably connected to the fixed frame 10 through a connecting block 14.

[0040] During installation, firstly, bolts are used to fix the first fixing plate 12 at the rear end of the buffer rubber column 11 onto the connecting block 14 at the front of the fixing frame 10. Then, the winch 5 is turned on, and the winch 5, together with the connecting steel cable 6, lowers the mounting plate 2 and the fender 3 downwards. At this time, the mounting plate 2 slides outside the guide rail 7, and finally the fender 3 is placed in a suitable position, that is, half above the water surface and half below the water surface. When the ship docks at the pier, the hull impacts the fender 3. At this time, the impact force compresses the buffer rubber column 11 on the rear side of the fender 3, using the buffer... The deformation of the rubber column 11 absorbs the impact force and achieves buffering. During this process, when the hull just contacts the fender 3, the pressure sensor 9 inside the fender 3 detects the instantaneous impact force. The impact angle between the hull and the fender 3 is determined by the data detected by the two pressure sensors 9. If the value of the pressure sensor 9 on the left is greater than that on the right, it indicates that the hull is impacting the fender 3 on the left side; otherwise, it indicates that the hull is impacting the fender 3 on the right side. If the values ​​of the pressure sensors 9 on the left and right sides are the same, it indicates that the hull is impacting the fender 3 head-on. At this time, the impact force is... The wireless controller 32 controls the start of the delivery pump 17. The sensitive element inside the pressure sensor 9 senses the external pressure and converts it into a weak electrical signal. The chip built into the pressure sensor 9 amplifies and filters this weak electrical signal, and then converts it into a digital signal through an analog-to-digital converter. This digital signal is sent out through the common local communication interface on the pressure sensor 9. At this time, the electrical signal of the pressure sensor 9 is transmitted to the wireless controller 32. The wireless controller 32 sends the "on" or "off" command from the control terminal to the controller outside the delivery pump 17 through a Bluetooth wireless communication channel. After the controller parses the command, it drives a power switch device to connect or disconnect the power supply to the air pump motor, thereby realizing start and stop control. Under the action of the delivery pump 17, the gas is delivered to the corresponding position of the regulating airbag 15 through the first connecting pipe 16, so that the regulating airbag 15 expands and pushes the buffer rubber column 11 to rotate a certain angle, so that the fender 3 rotates to the angle facing the hull. Through frontal impact, the lateral movement of the fender 3 and the buffer rubber column 11 is reduced, and the tearing damage of the buffer rubber column 11 is reduced.

[0041] The electrical equipment used in the above process, such as winch 5 and conveying pump 17, are all powered by photovoltaic panels to create a low-carbon new energy wharf. The photovoltaic panels are installed on the outside of the wharf wall 1. The photovoltaic panels generate electricity and store it in the energy storage device to power the equipment such as winch 5. In this process, the reflection of sunlight by seawater is used to achieve a higher utilization rate of sunlight, and finally realize the power supply of new energy.

[0042] Example 2: Please refer to Figures 5-7To achieve automatic repair of the interior of the buffer rubber column 11, this embodiment provides the following technical solution: a connecting ball 18 is fixedly installed at the middle position of the outer surface of the fixing frame 10. The outer surface of the connecting ball 18 is in close contact with the inner wall of the first fixing plate 12, and a sealing ring is fixedly installed on the inner wall of the first fixing plate 12. Furthermore, a hollow receiving groove 23 is formed inside the buffer rubber column 11, the connecting ball 18 is hollow, and rubber repair fluid is stored inside the connecting ball 18. A first connecting pipe 1 is fixedly installed outside the connecting ball 18. 9 and the second connecting pipe 21, the first connecting pipe 19 is externally fixedly equipped with a solenoid valve 20 for controlling the flow, and the front end of the second connecting pipe 21 is fixedly equipped with a fine nozzle 22 that connects to the groove inside the side wall of the buffer rubber column 11. The inner wall of the groove is covered with a polyethylene film for reducing the adhesion of rubber repair fluid. The regulating airbag 15 is divided into a first cavity 1501 and a second cavity 1502 that are independent of each other. The first cavity 1501 is connected to the upper end of the connecting ball 18 through the return pipe 1503, and the second cavity 1502 is connected to the first connecting pipe 16.

[0043] When the fender 3 is impacted by the hull, it compresses the buffer rubber column 11. This compresses the space within the receiving groove 23 of the buffer rubber column 11. As the space is compressed, the air inside the receiving groove 23 enters the connecting ball 18 through the first connecting pipe 19. The sealing ring on the inner wall of the first fixing plate 12 seals against the outer surface of the connecting ball 18 to prevent air leakage. The flow rate of the gas is controlled by the solenoid valve 20 to achieve auxiliary buffering. When air enters the connecting ball 18, some of the air enters the first cavity 1501 of the regulating airbag 15 through the return pipe 1503. This causes the first cavity 1501 to expand, increasing its pressure resistance and preventing severe deformation of the regulating airbag 15 when the device is impacted, which would affect the overall support effect. The rubber repair agent in the connecting ball 18 is squeezed out. At this time, the rubber repair agent passes through the first connecting pipe 19... The two-way connector 21 sprays evenly from the refining nozzle 22 into the grooves on the inner wall of the buffer rubber column 11 (the grooves refer to the groove structures evenly distributed inside the side wall of the buffer rubber column 11, which are connected by annular grooves and finally connected to the square groove at the bottom. The refining nozzle 22 is located in the square groove at the bottom. The entire groove is a relatively sealed space, that is, it is not connected to the outside nor to the receiving groove 23). When a crack appears between the receiving groove 23 and the strip groove, the rubber repair agent will enter the crack to achieve the purpose of automatic repair. Afterwards, when the buffer rubber column 11 rebounds and resets, the repair agent in the receiving groove 23 is drawn back into the connecting ball 18 under the action of negative pressure. When the buffer rubber column 11 recovers its deformation, since the deformation of the receiving groove 23 is greater than that of the strip groove, there is a pressure difference, which can draw the repair agent in the strip groove back into the connecting ball 18.

[0044] Example 3: Please refer to Figures 8-12 In order to reduce seawater corrosion of the device, this embodiment provides the following technical solution, which specifically discloses: A buoyancy airbag 25 for pushing it to move upward is fixedly installed on the rear side of the lower end of the fender 3, and a second connecting pipe 26 for inflating it is fixedly installed on the side of the buoyancy airbag 25. The bottom end of the second connecting pipe 26 is connected to a third connecting pipe 28 installed below the delivery pump 17 through a three-way valve 27, and the third connecting pipe 28 is connected to an external air supply device. The second fixing plate 13 has mounting grooves 29 on the left and right sides, and the mounting grooves 29 are slidably connected to the mounting frame 30. The mounting frame 30 is fixedly installed on the rear surface of the fender 3, and a rubber friction pad 31 is fixedly installed inside the mounting groove 29.

[0045] When no ship is docked, the delivery pump 17 is turned on. Under the action of the delivery pump 17 and the second connecting pipe 26, air is delivered to the buoyancy airbag 25. At this time, the buoyancy airbag 25 expands and generates a large buoyancy. Under the action of buoyancy, the fender 3 is lifted upward. At this time, the mounting groove 29 opened on the side of the second fixing plate 13 slides relative to the mounting bracket 30 fixedly installed on the back of the fender 3, and finally the fender 3 is completely lifted off the water surface, reducing the corrosion damage of seawater to the fender 3. When the ship docks, the air in the buoyancy airbag 25 can be extracted to lower the fender 3 for use. In addition, when the ship hits the fender 3, the fender 3 can move up and down. With the help of the friction pad 31 inside the mounting groove 29, the longitudinal force can be buffered.

[0046] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precise buffering fender hanger for a ship, comprising a wharf wall (1) made of concrete, an installation plate (2) arranged outside the wharf wall (1), and a fender plate (3) arranged at the front side of the installation plate (2), characterized in that, Also includes: The upper surface of the wharf wall (1) is fixedly installed with a gantry body (4), and a winch (5) is installed on the upper surface of the gantry body (4). The winch (5) is connected to the top of the mounting plate (2) through a connecting steel rope (6). The mounting plate (2) is slidably connected to the guide rail (7) fixedly installed on the outer surface of the wharf wall (1). The mounting plate (2) has a circular frame (10) fixedly installed on its outer surface. The buffer rubber column (11) is connected to the frame (10) by the adjustment mechanism on the outer surface of the frame (10). The first and second steel fixing plates (12 and 13) are fixedly installed at the front and rear ends of the buffer rubber column (11). A steel inner lining plate (8) is fixedly installed inside the fender plate (3), and a pressure sensor (9) is fixedly installed on the surface of the inner lining plate (8). The pressure sensor (9) communicates with a wireless controller (32) fixedly installed on the upper surface of the gantry body (4) using electrical signals. The adjustment mechanism includes an adjustment airbag (15) fixedly installed between the first fixed plate (12) and the fixed frame (10), and the adjustment airbag (15) is connected to the delivery pump (17) fixedly installed on the lower surface of the mounting plate (2) through the first connecting pipe (16). The first fixed plate (12) is rotatably connected to the fixed frame (10) through the connecting block (14), and a connecting ball (18) is fixedly installed at the middle position of the outer surface of the fixed frame (10). The regulating airbag (15) is divided into a first cavity (1501) and a second cavity (1502) that are independent of each other. The first cavity (1501) is connected to the upper end of the connecting ball (18) through the return pipe (1503), and the second cavity (1502) is connected to the first connecting pipe (16). The outer surface of the connecting ball (18) is in close contact with the inner wall of the first fixing plate (12), and a sealing ring is fixedly installed on the inner wall of the first fixing plate (12), and a hollow accommodating groove (23) is opened inside the buffer rubber column (11). The connecting ball (18) is hollow inside, and the connecting ball (18) contains rubber repair fluid. The connecting ball (18) is also fixedly installed with a first connecting pipe (19) and a second connecting pipe (21) on the outside. The first connecting pipe (19) is fixedly installed with a solenoid valve (20) for controlling the flow rate, and the front end of the second connecting pipe (21) is fixedly installed with a fine nozzle (22) that connects to the groove inside the side wall of the buffer rubber column (11).

2. The fender davit for precision cushioning of a ship according to claim 1, characterized in that: The inner wall of the groove is covered with a polyethylene film to reduce the adhesion of rubber repair fluid.

3. The fender davit for precision cushioning of a ship according to claim 1, characterized in that: A buoyancy airbag (25) for pushing it upward is fixedly installed on the rear side of the lower end of the fender (3), and a second connecting pipe (26) for inflating it is fixedly installed on the side of the buoyancy airbag (25).

4. The fender davit for precision cushioning on a ship according to claim 3, characterized in that: The bottom end of the second connecting pipe (26) is connected to the third connecting pipe (28) installed below the delivery pump (17) through a three-way valve (27), and the third connecting pipe (28) is connected to an external gas supply device.

5. A precision buffer fender davit for ships according to claim 4, characterized in that: The second fixing plate (13) has mounting grooves (29) on both sides, and the mounting grooves (29) are slidably connected to the mounting bracket (30). The mounting bracket (30) is fixedly installed on the rear surface of the fender plate (3), and a rubber friction pad (31) is fixedly installed inside the mounting groove (29).

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