Movable hydraulic springboard vehicle

Abstract

The invention discloses a movable hydraulic type springboard vehicle, and relates to the technical field of hydraulic type springboard vehicles. The movable hydraulic springboard vehicle comprises a vehicle body, supporting legs are connected to the two sides of the vehicle body, a reduction gearbox is connected with a springboard device, the springboard device is arranged to rotate in the horizontal direction and / or the vertical direction, and the included angle between the springboard device and the longitudinal axis of a ship is 90 degrees. The plate supplementing device is used for being pulled out in the ship drifting process and enabling one end of the springboard and a butt joint gap of the ship clamping plate to keep a preset distance, the plate supplementing device is connected with the ship clamping plate through the end stabilizing device, and the end stabilizing device is arranged to synchronously move along with the ship and pull the plate supplementing device. According to the movable hydraulic springboard vehicle, a stable supporting point is constructed through the supporting legs, the springboard rotates and is fixed to the joint of the surface of a ship, the height difference of the joint of the springboard and the ship is kept to be 0-3 cm, and the butt joint gap between one end of the springboard and a ship clamping plate is kept to be 2-5 cm through the plate supplementing device.

Description

Technical Field

[0001] This invention relates to the field of hydraulic scaffolding vehicles, and more specifically to mobile hydraulic scaffolding vehicles. Background Technology

[0002] A mobile gangway is used to connect docks and ships, facilitating personnel boarding. The gangway and vehicle are designed as a single unit. The mobile gangway is powered by batteries and an electric motor, allowing it to be moved to the work site. In the working position, a gearbox rotates the gangway to align it with the ship at a 90-degree angle. Then, a hydraulic cylinder lowers the lower end of the gangway onto the ship, allowing personnel to board and disembark.

[0003] Referring to Chinese Patent Classification No. CN213921406U, a working position angle adjustment device for a special gangway for vehicles to board and disembark from ships is disclosed. The angle adjustment mechanism includes a main operating winch installed on the open deck of a ship, a retraction winch fixed to the main gangway, and a support assembly. Through the cooperation of the main operating winch on the open deck and the retraction winch on the main gangway, adaptive adjustment of the lifting height and angle of the main and auxiliary gangways is achieved, solving the problem of gangway construction between the deck and the dock when there is a height difference. The support assembly, by controlling the extension and retraction of hydraulic cylinders to compress the top plate, forms a triangular solid structure at the connection point of the main and auxiliary gangways, the hydraulic cylinder, and the fixed end of the hydraulic cylinder to the top plate. The gangway is fixed by the interaction of the pulling force of the retraction winch on the auxiliary gangway, the downward force of the top plate on the auxiliary gangway, and the upward support force of the dock on the auxiliary gangway, improving the overall stability and load-bearing capacity of the gangway.

[0004] Traditional gangplank trucks typically have two non-fixed connection points. When a ship is bobbing and rocking, even slight movements can cause the gangplank to sway up and down, making it easy for people to lose their balance while walking. Some equipment lacks side-mounted hooks and shock-absorbing devices, resulting in poor stability after connection. This is especially noticeable when people are boarding in large numbers, making the gangplank connection unstable and posing a safety hazard such as people falling into the water. When a ship is docked, it will drift slowly due to the impact of the water flow, causing the gap between the gangplank and the ship's deck to gradually widen. If the gangplank is not moved and its position adjusted in time, the gap may exceed 15cm, making it easy for people to slip when crossing. Large ships, due to their deeper draft, drift even more, requiring frequent gangplank repositioning and increasing the workload of operators. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a mobile hydraulic gangway vehicle. It constructs a stable support point through support feet, and the gangway rotates and is fixed at the connection point with the ship's surface, keeping the height difference between the gangway and the ship's connection point at 0-3 cm. The patching device keeps the gap between one end of the gangway and the ship's clamping plate at 2-5 cm.

[0006] Technical Solution: To achieve the above objectives, the present invention provides the following technical solution: a mobile hydraulic ramp vehicle, comprising: a vehicle body, with supporting feet connected to both sides of the vehicle body; a wheeled chassis fixedly connected to the upper surface of the vehicle body; a reduction gearbox rotatably connected to the top of the wheeled chassis; a ramp device connected to the reduction gearbox; the ramp device being configured to rotate in the horizontal and / or vertical direction at an angle of 90 degrees to the longitudinal axis of the ship; a patching device slidably connected to the end of the ramp device away from the reduction gearbox; the patching device being used to be pulled out during ship drifting and to maintain a 2-5 cm gap between one end of the ramp and the ship's deck; the patching device being connected to the ship's deck via an end-stabilizing device; the end-stabilizing device being configured to move synchronously with the ship and pull the patching device.

[0007] Preferably, the support foot includes: a corner block, one side of which is fixedly connected to one side of the vehicle body; several corner blocks are equidistantly connected to each side of the vehicle body; a placement groove is provided on one side of each corner block; a first side plate is connected to both sides of each corner block; a first rotating shaft is provided between two first side plates; one end of the first rotating shaft passes through the inner wall of the corner block and is slidably connected to the inner wall of the corner block; both ends of the first rotating shaft are fixedly connected to one side of the two first side plates respectively; a first hydraulic cylinder is connected to the bottom of each placement groove; the telescopic end of each first hydraulic cylinder is connected to a connecting plate; an arm plate is connected to both sides of each connecting plate; a second rotating shaft is provided at the bottom of the arm plate; one end of the second rotating shaft passes through the inner wall of the arm plate and is rotatably connected to the inner wall of the arm plate; both sides of the second rotating shaft are connected to a second side plate; a support plate is fixedly connected to the bottom of the second side plate; and the support foot is used to unfold under hydraulic action and abut against the ground.

[0008] Preferably, the ramp device includes: a lower plate located above the vehicle body, with end blocks on both sides of one end of the lower plate, the end blocks being slidably connected to the telescopic end of a second hydraulic cylinder; an upper plate fixedly connected to one end of the lower plate; a support column and a support ramp provided between the upper and lower plates; the two sides of the support column being connected to the sides of the upper and lower plates respectively; each support ramp being provided between adjacent support columns; the support column being located on the outside of the support ramp; the support column and the support ramp being provided at the edge of the lower plate; traction members connected to both sides of the middle of the upper plate; and several first rods connected to the edge of the upper surface, the first rods being inserted into the upper plate; adjacent first rods being connected by connecting ropes; the upper plate and the lower plate forming a ramp.

[0009] Preferably, the traction component includes: a first upright plate, one side of which is fixedly connected to one side of the jumping board; a top plate is connected to the top of the first upright plate; several fixing rings are fixedly connected to the side of the first upright plate; each fixing ring is fixedly connected to a connecting rope; each connecting rope is connected to a first rod system on one side of the upper plate; both sides of the first upright plate are fixedly connected to end blocks; two vertical holes are formed through the upper surface of one end of the upper plate, the two vertical holes are symmetrically distributed along the longitudinal axis of the upper plate; a bottom groove is formed between the upper plate and the lower plate, the top of the bottom groove is connected to the bottom of the vertical holes; a bottom hole is formed through the bottom of one end of the lower plate, the bottom hole is connected to the bottom of the bottom groove.

[0010] Preferably, the patching device includes: a sliding plate, which is slidably connected to the bottom groove; two sliding plates connected to both sides of the sliding plate; the sliding plates slidably connected to the vertical hole; a first spring connected to one side of the sliding plate via a second vertical plate; a third vertical plate connected to one end of the first spring; two strip-shaped holes penetrating the top of the sliding plate, the two strip-shaped holes being symmetrically distributed along the longitudinal axis of the sliding plate; a swivel hook connected to the bottom corner of one end of the sliding plate; several second rods equidistantly connected to the top of the second vertical plate; adjacent second rods being connected by elastic ropes; one end of the elastic rope being fixedly connected to a fixing ring; the top of the sliding plate passing through the vertical hole; the second vertical plate slidably connected to the bottom groove; and the two sides of the third vertical plate being fixedly connected to the side of the upper plate and the lower plate closest to each other.

[0011] Preferably, the rotating hook component includes: a third rotating shaft, which is disposed directly below the skateboard, with flat plates connected to both ends of the third rotating shaft, the top of the flat plates being fixedly connected to the bottom of the skateboard, a rotating cylinder being rotatably connected to the third rotating shaft, a convex plate being connected to the side of the rotating cylinder via a horizontal plate, a hook plate being connected to the bottom end of the convex plate, and an insertion hole being provided through one side of the convex plate.

[0012] Preferably, the end-stabilizing device includes: a fixed plate connected to the ship's deck; upright blocks fixedly connected to the upper surfaces of both ends of the fixed plate; a fixed hole extending through the top of the fixed plate; the fixed hole being fixedly connected to the ship's clamping plate via a threaded rod; a fourth rotating shaft disposed between the two fixed plates; two pressure plates slidably connected to the third rotating shaft; the two pressure plates being symmetrically distributed along the longitudinal axis of the fixed plate; each of the two pressure plates being connected to the upright block via a second spring on its opposite side; a sliding groove provided on the upper surface of the fixed plate; a slider connected to the bottom of each pressure plate; the slider being slidably connected to the sliding groove; a first channel and a second channel extending through one side of the pressure plate; a third channel extending through one side of the upright block; one end of the fourth rotating shaft passing through and slidably connected to the second channel; one end of the insert rod passing through and inserting into the second channel; the pressure plate being adapted to the moving plate; and the pressure plate being located outside the moving plate.

[0013] A method, applied to the aforementioned mobile hydraulic gangway vehicle, involves fixing an end-stabilizing device at the connection point of the ship's gangway. A gearbox drives the gangway to rotate, bringing it to a 90-degree angle with the ship. A second hydraulic cylinder is activated, placing the lower end of the gangway and the patching device onto the ship's gangway. A hook plate is rotated, connecting to a fourth shaft on the end-stabilizing device. One end of a rod passes through a second and third channel. The end-stabilizing device is fixedly connected to the patching device. A camera captures real-time images of the ship's gangway and the gangway, obtaining their height difference. When the height difference exceeds 3-5 cm, the second hydraulic cylinder is activated, changing the angle of the gangway. The ramp is kept relatively horizontal with the ship's deck. When the ship drifts laterally, the ramp presses against the pressure plate, compressing the second spring. The hook plate, the sliding plate, and the ramp move horizontally along the axis of the fourth pivot. The spring absorbs and stores the energy from the ship's lateral drift, reducing the vibration of the ramp. The second spring generates a reverse restoring force after being compressed, which dampens the movement of the ramp and reduces its amplitude. When the ship drifts longitudinally, it moves away from the ramp. The ship uses the end stabilizing device to drive the supplementary plate device, and the sliding plate unfolds as the ship moves, preventing the gap between the ship's deck and the ramp from exceeding 5 centimeters.

[0014] Beneficial effects: This invention provides a mobile hydraulic gangway vehicle. Compared with the prior art, it has the following beneficial effects: 1. A stable support point is constructed through the support feet, the gangway rotates and is fixed at the connection point with the ship's surface, the gangway is adjusted in real time to keep the height difference between the gangway and the ship's connection point at 0-3 cm, and the gap between one end of the gangway and the ship's deck is kept at 2-5 cm through the patching device.

[0015] 2. When the ship drifts laterally, the ramp directly presses against the pressure plate on the ramp side. The pressure plate, under pressure, applies force to the second spring, causing it to compress in the direction of the force. During this process, the second spring absorbs and stores the kinetic energy generated by the ship's drift, while simultaneously buffering the impact and reducing the initial vibration of the ramp. The hook plate and ramp slide smoothly move horizontally along the fourth pivot axis, adapting to the ship's drift displacement. After the second spring is compressed to a certain extent, it generates a reverse restoring force, offsetting part of the lateral drift force. Simultaneously, its own elastic properties dampen the movement of the ramp, slowing down the movement speed and preventing excessive displacement of the ramp due to inertia. Ultimately, this reduces the overall range of motion of the ramp, maintaining its stable state.

[0016] 3. When a vessel drifts longitudinally due to changes in water flow, tides, or mooring status, it moves away from the gangway. The vessel uses the end stabilizing device to drive the gangway expansion device, and the gangway expands as the vessel moves, preventing the gap between the gangway and the gangway from exceeding 5 centimeters.

[0017] 4. The hook plate is connected to the fourth rotating shaft on the end-stabilizing device. One end of the insert rod passes through the second and third channels, and the hook plate is fixed together with the pressure plate and the upright block by the insert rod. The hook plate cannot rotate, maintaining the engagement relationship between the hook plate and the fourth rotating shaft and preventing the hook plate from disengaging from the fourth rotating shaft. Through the limiting action of the fourth rotating shaft and the insert rod, the hook plate can only slide horizontally along the axial direction of the fourth rotating shaft. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present application and, together with the specification, further serve to explain the principles of the present application and enable those skilled in the art to implement and use the present application.

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a structural diagram of the part containing the vehicle body, support legs, and step platform.

[0022] Figure 3 This is a structural diagram of the supporting leg.

[0023] Figure 4 An exploded view of the supporting legs.

[0024] Figure 5This is a structural diagram of the fixed plate, lower plate, upper plate, second rod, and elastic rope.

[0025] Figure 6 This is a structural diagram of the springboard device, the supplementary board device, and the end stabilizing device.

[0026] Figure 7 This is a schematic diagram of the springboard device.

[0027] Figure 8 This is a structural diagram of one end of the upper and lower plates in the scaffolding device.

[0028] Figure 9 This is a structural diagram of the patching device and the end stabilizing device.

[0029] Figure 10 This is a schematic diagram of the patching device.

[0030] Figure 11 This is a structural schematic diagram of the rotating hook component.

[0031] Figure 12 This is a schematic diagram of the end stabilizing device and the rotating hook.

[0032] Figure 13 This is a schematic diagram of the end-stabilizing device.

[0033] The reference numerals in the figure are as follows: 11. Vehicle body; 12. Support leg; 121. Corner block; 122. First side plate; 123. Support plate; 124. First hydraulic cylinder; 125. First pivot; 126. Arm plate; 127. Connecting plate; 128. Second pivot; 129. Second side plate; 13. Wheel; 14. Step platform; 15. Wheeled chassis; 16. Placement slot; 17. Gearbox; 2. Jumping board device; 21. Traction component; 211. First upright plate; 212. Top plate; 213. Fixing ring; 214. First traction rope; 215. Side block; 216. Connecting rope; 22. Lower plate; 23. Upper plate; 24. Support column; 25. Support inclined plate; 26. First rod; 27. End block; 2 8. Second hydraulic cylinder; 3. Supplementing plate device; 31. Moving plate; 32. Second vertical plate; 33. First spring; 34. Third vertical plate; 35. Slide plate; 36. Strip hole; 37. Hook; 371. Third rotating shaft; 372. Flat plate; 373. Rotating cylinder; 374. Horizontal plate; 375. Protruding plate; 376. Hook plate; 377. Insertion hole; 38. Second rod; 39. Elastic rope; 4. End stabilizing device; 41. Fixing plate; 42. Vertical block; 43. Fixing hole; 44. Second spring; 45. Pressure plate; 46. Fourth rotating shaft; 47. Inserting rod; 48. Slide groove; 49. Sliding block; 51. Bottom groove; 52. Vertical hole; 53. Bottom hole; 54. First channel; 55. Second channel; 56. Third channel.

[0034] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0036] like Figure 1 - Figure 13 As shown, the present invention provides a mobile hydraulic ramp vehicle, comprising: a vehicle body 11, with support feet 12 connected to both sides of the vehicle body 11, a wheeled chassis 15 fixedly connected to the upper surface of the vehicle body 11, a reduction gearbox 17 rotatably connected to the top of the wheeled chassis 15, a ramp device 2 connected to the reduction gearbox 17, the ramp device 2 being configured to rotate in the horizontal and / or vertical direction with an angle of 90 degrees to the longitudinal axis of the ship, a patching device 3 being slidably connected to the end of the ramp device 2 away from the reduction gearbox 17, the patching device 3 being used to be pulled out during the ship's drifting process and to maintain a gap of 2-5 cm between one end of the ramp and the ship's clamping plate, the patching device 3 being connected to the ship's clamping plate through an end stabilizing device 4, the end stabilizing device 4 being configured to move synchronously with the ship and pull the patching device 3.

[0037] The support foot 12 includes: a corner block 121, one side of which is fixedly connected to one side of the vehicle body 11. Several corner blocks 121 are equidistantly connected to each side of the vehicle body 11. Each corner block 121 has a placement groove 16 on one side. A first side plate 122 is connected to both sides of each corner block 121. A first rotating shaft 125 is disposed between two first side plates 122. One end of the first rotating shaft 125 passes through the inner wall of the corner block 121 and is slidably connected to the inner wall of the corner block 121. The two ends of the first rotating shaft 125 are respectively fixedly connected to one side of the two first side plates 122. The bottom of each placement slot 16 is connected to a first hydraulic cylinder 124. The telescopic end of each first hydraulic cylinder 124 is connected to a connecting plate 127. Each connecting plate 127 has an arm plate 126 connected to both sides. The bottom end of the arm plate 126 is provided with a second rotating shaft 128. One end of the second rotating shaft 128 passes through the inner wall of the arm plate 126 and is rotatably connected to the inner wall of the arm plate 126. Both sides of the second rotating shaft 128 are connected to a second side plate 129. The bottom of the second side plate 129 is fixedly connected to a support plate 123. The support foot 12 is used to unfold under hydraulic action and abut against the ground.

[0038] The ramp device 2 includes: a lower plate 22, which is located above the vehicle body 11. Both sides of one end of the lower plate 22 are provided with end blocks 27, which are slidably connected to the telescopic end of the second hydraulic cylinder 28. One end of the lower plate 22 is fixedly connected to an upper plate 23. Support columns 24 and support ramps 25 are provided between the upper plate 23 and the lower plate 22. The two sides of the support columns 24 are respectively connected to the side of the upper plate 23 and the lower plate 22 that are close to each other. Each support ramp 25 is provided between adjacent support columns 24. The support columns 24 are located outside the support ramps 25. The support columns 24 and support ramps 25 are both provided at the edge of the lower plate 22. Traction members 21 are connected to both sides of the middle part of the upper plate 23. Several first rods 26 are connected to the edge of the upper surface of the upper plate 23. The first rods 26 are inserted into the upper plate 23. Adjacent first rods 26 are connected by connecting ropes 216. The upper plate 23 and the lower plate 22 form a ramp.

[0039] The gangplank is made of aluminum, which is significantly lighter than traditional steel gangplanks. This lightweight design reduces the load on the hydraulic drive system, chassis, and support components, extending the equipment's lifespan and lowering energy consumption. Furthermore, aluminum gangplanks are easier to move during routine maintenance, minor adjustments, or temporary disassembly, making them particularly suitable for ship gangplanks that frequently need to adapt to different ship types and drafts, offering greater operational flexibility. Ship gangplanks are constantly exposed to corrosive environments such as marine atmosphere, humid rain, and industrial dust at docks; the corrosion resistance of aluminum effectively addresses the rust-prone nature of traditional steel. Aluminum materials, especially industrially common alloys like 6061 and 7075, can achieve strength approaching that of ordinary low-carbon steel after alloying treatment, while also possessing good toughness, perfectly meeting the requirements of gangplank use.

[0040] The traction component 21 includes: a first upright plate 211, one side of which is fixedly connected to one side of the jump plate; a top plate 212 is connected to the top of the first upright plate 211; several fixing rings 213 are fixedly connected to the side of the first upright plate 211; each fixing ring 213 is fixedly connected to a connecting rope 216; each connecting rope 216 is tied to a first rod 26 on one side of the upper plate 23; both sides of the first upright plate 211 are fixedly connected to end blocks 27; two vertical holes 52 are opened through the upper surface of one end of the upper plate 23; the two vertical holes 52 are symmetrically distributed along the longitudinal axis of the upper plate 23; a bottom groove 51 is opened between the upper plate 23 and the lower plate 22; the top of the bottom groove 51 is connected to the bottom of the vertical holes 52; a bottom hole 53 is opened through the bottom of one end of the lower plate 22; the bottom hole 53 is connected to the bottom of the groove.

[0041] The supplementary plate device 3 includes: a sliding plate 35, which is slidably connected to the bottom groove 51; two sliding plates 31 are connected to both sides of the sliding plate 35; the sliding plates 31 are slidably connected to the vertical hole 52; a first spring 33 is connected to one side of the sliding plate 35 via a second vertical plate 32; one end of the first spring 33 is connected to a third vertical plate 34; two strip holes 36 are provided through the top of the sliding plate 35; the two strip holes 36 are symmetrically distributed along the longitudinal axis of the sliding plate 35; a swivel hook 37 is connected to the bottom corner of one end of the sliding plate 35; several second rods 38 are equidistantly connected to the top of the second vertical plate 32; adjacent second rods 38 are connected by an elastic rope 39; one end of the elastic rope 39 is fixedly connected to a fixing ring 213; the top of the sliding plate 31 passes through the vertical hole 52; the second vertical plate 32 is slidably connected to the bottom groove 51; and the two sides of the third vertical plate 34 are fixedly connected to the side of the upper plate 23 and the lower plate 22 that are close to each other.

[0042] The rotating hook component 37 includes: a third rotating shaft 371, which is located directly below the slide plate 35. Both ends of the third rotating shaft 371 are connected to flat plates 372. The top of the flat plates 372 is fixedly connected to the bottom of the slide plate 35. The third rotating shaft 371 is rotatably connected to a rotating cylinder 373. The side of the rotating cylinder 373 is connected to a protruding plate 375 through a horizontal plate 374. The bottom end of the protruding plate 375 is connected to a hook plate 376. A through hole 377 is provided on one side of the protruding plate 375.

[0043] The end-stabilizing device 4 includes: a fixed plate 41 connected to the ship's deck; upright blocks 42 fixedly connected to the upper surfaces of both ends of the fixed plate 41; a fixed hole 43 penetrating through the top of the fixed plate 41; the fixed hole 43 being fixedly connected to the ship's clamping plate via a threaded rod; a fourth rotating shaft 46 disposed between the two fixed plates 41; and two pressure plates 45 slidably connected to the third rotating shaft 371; the two pressure plates 45 being symmetrically distributed along the longitudinal axis of the fixed plate 41; and each of the two pressure plates 45 being connected to the upright block 42 on the side furthest from each other via a second spring 44. The upper surface of the fixed plate 41 is provided with a sliding groove 48. The bottom of each pressure plate 45 is connected to a slider 49, which is slidably connected to the sliding groove 48. A first channel 54 and a second channel 55 are provided through one side of the pressure plate 45, and a third channel 56 is provided through one side of the upright block 42. One end of the fourth rotating shaft 46 passes through the second channel 55 and is slidably connected to the second channel 55. One end of the insertion rod 47 passes through the third channel 56 and is inserted into the second channel 55. The pressure plate 45 is adapted to the moving plate 31, and the pressure plate 45 is located on the outside of the moving plate 31.

[0044] A method, applied to a mobile hydraulic gangway vehicle, involves fixing an end-stabilizing device 4 at the connection point of the ship's gangway. A reduction gearbox 17 rotates the gangway, bringing it to a 90-degree angle with the ship. This drives a second hydraulic cylinder 28, placing the lower end of the gangway and the patching device 3 onto the ship's gangway. A hook plate 376 is rotated, connected to a fourth rotating shaft 46 on the end-stabilizing device 4. One end of a rod 47 passes through a second hole 55 and a third hole 56. The end-stabilizing device 4 is fixedly connected to the patching device 3. A camera captures real-time images of the ship's gangway and the gangway, obtaining their height difference. When the height difference exceeds 3-5 cm, the second hydraulic cylinder 28 is activated, changing the angle of the gangway. To keep the gangplank and the ship's deck relatively horizontal, when the ship drifts laterally, the shifting plate 31 presses against the pressure plate 45, the second spring 44 is compressed, and the hook plate 376, the sliding plate 35, and the gangplank move horizontally along the axis of the fourth pivot 46. The spring absorbs and stores part of the energy from the ship's lateral drift, reducing the vibration of the gangplank. After being compressed, the second spring 44 generates a reverse restoring force, which has a certain damping effect on the movement of the gangplank and reduces the amplitude of the gangplank's movement. When the ship drifts longitudinally, the ship moves away from the gangplank, and the ship drives the patching plate device 3 through the end stabilizing device 4. The sliding plate 35 unfolds with the movement of the ship, preventing the gap between the ship's deck and the gangplank from exceeding 5 centimeters.

[0045] In use, the fixing plate 41 is placed at the connection of the ship's clamp plate, and the fixing plate 41 is fixedly connected to the ship's clamp plate by the threaded rod.

[0046] Move the mobile scaffolding vehicle to the workplace, place it in the working position, plug in the shore power, and start the first hydraulic cylinder 124. The telescopic end of the first hydraulic cylinder 124, along with the connecting plate 127, arm plate 126, and support plate 123, unfolds outward in sequence. The support plate 123 approaches and abuts against the ground. The mobile scaffolding vehicle is fixed by the symmetrically unfolded support legs 12 on both sides of the vehicle body 11.

[0047] The gearbox 17 drives the ramp device 2 and the patching device 3 to rotate, making the ramp form a 90-degree angle with the ship. This drives the second hydraulic cylinder 28, placing the lower end of the ramp and the patching device 3 onto the ship's clamping plate. At this time, the hook plate 376 is located above the fourth rotating shaft 46. The operator rotates the hook plate 376, connecting it to the fourth rotating shaft 46 on the end-stabilizing device 4. One end of the insertion rod 47 passes through the second hole 55 and the third hole 56, fixing the hook plate 376 to the pressure plate 45 and the upright block 42. The hook plate 376 cannot rotate, maintaining the engagement between the hook plate 376 and the fourth rotating shaft 46 and preventing the hook plate 376 from disengaging from the fourth rotating shaft 46. Through the limiting action of the fourth rotating shaft 46 and the insertion rod 47, the hook plate 376 can only slide horizontally along the axial direction of the fourth rotating shaft 46.

[0048] High-definition industrial cameras are installed on the side of the gangplank or at fixed supports on the dock. These cameras must be waterproof and salt spray resistant, adaptable to the dock environment. The lens is aimed at the edge where the ship's deck meets the gangplank, ensuring the entire area (approximately 1-2 meters) is captured. After powering on, the camera is set to capture images in real-time at 30 frames per second. Image data is transmitted to the local control host via network cable. The control host processes the received images, converting color images to grayscale to reduce data volume. Gaussian filtering is then used to eliminate image noise caused by dust and light fluctuations in the dock environment. The system then uses an edge detection algorithm to extract the contour lines of the ship's deck edge and gangplank edge, clarifying their visual boundaries. The camera is pre-calibrated, and a "pixel coordinate-actual size" correspondence is established after image capture. In subsequent real-time images, the vertical pixel coordinate difference between the deck edge and gangplank edge is read. Based on the calibrated pixel-size correspondence, the vertical pixel difference is converted into an actual height difference. The control unit compares the calculated real-time height difference with a preset threshold (3-5 cm). If the height difference is ≤5 cm, the current state is maintained; if the height difference is >5 cm, a start adjustment signal is generated. The start adjustment signal is converted into an electrical signal by the PLC and transmitted to the hydraulic control unit of the second hydraulic cylinder 28. After receiving the signal, the control unit activates the hydraulic pump and pushes the ramp to rotate upward or downward around the hinge axis according to the height difference direction. During the adjustment process, the camera continuously records and calculates the height difference every 0.5 seconds, feeding it back to the PLC to correct the hydraulic cylinder's movement amplitude in real time. When the camera detects that the height difference has dropped to within the range of 3-5 cm, the PLC sends a pause adjustment signal, and the hydraulic control unit closes the oil inlet valve to maintain the current position of the hydraulic cylinder. Then, it continues to record for 3 seconds, calculates the height difference multiple times, and confirms that it is stable within the threshold to determine that the adjustment is qualified. If the height difference continues to increase during the adjustment process, or the hydraulic cylinder movement exceeds the preset stroke, the PLC immediately triggers an emergency stop, shuts down the hydraulic pump and cuts off the oil circuit; at the same time, it issues an audible and visual alarm to remind the operator to check on-site and avoid excessive ramp rotation that could cause structural damage or personnel safety risks.

[0049] When the ship drifts laterally, it causes the associated sliding plate 31 to shift laterally. The sliding plate 31 directly presses against the pressure plate 45 on the gangway side, transferring the drift force to the pressure plate 45. The pressure plate 45, under pressure, applies pressure to the second spring 44, causing the spring to compress in the direction of force. During this process, the spring absorbs and stores the kinetic energy generated by the ship's drift, while simultaneously buffering the impact force and reducing the initial vibration of the gangway. As the pressure plate 45 pushes, the hook plate 376 and the sliding plate 35, connected to the pressure plate 45 and the gangway, are simultaneously subjected to force. Because all three are connected to the fourth pivot 46, they move smoothly horizontally along the axis of the fourth pivot 46, adapting to the ship's drift displacement. After the spring is compressed to a certain extent, it generates a reverse restoring force, offsetting part of the lateral drift force. Simultaneously, through its own elastic properties, it dampens the movement of the gangway, slowing down the movement speed and preventing excessive displacement of the gangway due to inertia. Ultimately, this reduces the overall range of motion of the gangway, maintaining its stable state.

[0050] Affected by changes in water flow, tides, or mooring status, the vessel moves longitudinally (parallel to the length of the gangplank) away from the gangplank. The initial mating gap gradually widens to 1-2 cm, triggering the linkage mechanism of the patching device 3. The end-stabilizing device 4, fixed at the edge of the vessel's deck, moves longitudinally synchronously with the vessel. The fourth rotating shaft 46 engages with the hook plate 376 of the patching device 3, transmitting the longitudinal traction force generated by the vessel's drift to the patching device 3, switching it from standby to operational status. The patching device 3 converts the traction force into linear thrust through a transmission structure, acting on the end of the sliding plate 35 closest to the dock, pushing the sliding plate 35 to slide and unfold along the bottom groove 51 towards the vessel. During this process, the bottom of the slide plate 35 is in contact with the inner wall of the groove 51 and moves along the axis of the groove 51 under the action of thrust. The groove 51 guides the slide plate 35 and prevents it from shifting laterally. At the same time, the sliding plates 31 fixed on both sides of the slide plate 35 move synchronously. The top of the sliding plate 31 passes through the vertical hole 52 and slides vertically along the vertical hole 52, further limiting the up and down swaying of the slide plate 35 and ensuring that the slide plate 35 always maintains a horizontal posture when unfolded. When the slide plate 35 slides, the second vertical plate 32 fixed on one side moves synchronously with the slide plate 35. Since the third vertical plate 34 is fixed to the upper plate 23 and the lower plate 22 on both sides respectively, the second vertical plate 32 will stretch the first spring 33 connected to it. The first spring 33 generates a reverse elastic force during the stretching process, which buffers the unfolding speed of the slide plate 35 and prevents the slide plate 35 from colliding with the ship deck due to rapid sliding due to inertia. At the same time, it stores elastic potential energy to prepare for subsequent repositioning. Several second rods 38, equidistantly fixed at the top of the second upright plate 32, move with the upright plate. The elastic ropes 39 connecting adjacent second rods 38 are stretched synchronously. The tension of the elastic ropes 39 keeps the spacing between the second rods 38 relatively stable, preventing the second upright plate 32 from tilting due to uneven force during the unfolding of the slide plate 35. At the same time, the fixing ring 213 fixed at one end of the elastic rope 39 provides a fixed fulcrum for the elastic rope 39, ensuring its stable auxiliary function. The rotating hook 37, fixed at one bottom corner of the slide plate 35, moves with the slide plate 35 towards the ship. The top of the flat plate 372 is fixed to the bottom of the slide plate 35, ensuring that the relative position of the rotating hook 37 and the slide plate 35 remains unchanged. The third rotating shaft 371 is connected to the flat plate 372 at both ends and is located directly below the slide plate 35, providing a rotation fulcrum for the rotating cylinder 373. If the vessel experiences slight vertical movement or tilting, the hook plate 376 will be subjected to lateral or vertical forces, causing the convex plate 375 and the transverse plate 374 to rotate around the third pivot 371, ensuring that the hook plate 376 remains in contact with the vessel's contact point and preventing rigid collisions. During the deployment of the ramp 35, a distance measuring sensor installed on the ramp 35 or the vessel's deck measures the width of the gap between the vessel's deck and the ramp in real time, and transmits the data to the control unit. If the gap approaches 5 centimeters, the control unit will reduce the thrust of the patching device 3, slowing down the deployment speed of the ramp 35. When the gap stabilizes within the range of 3-5 centimeters, the control unit sends a signal, and the patching device 3 stops outputting thrust.The reverse elastic force of the first spring 33 balances the static friction force on the sliding plate 35, the tension of the second rod 38 and the elastic rope 39 remains stable, and the hook plate 376 of the hook component 37 is in close contact with the ship's contact point, together maintaining the stationary state of the sliding plate 35 and ensuring that the docking gap does not exceed 5 cm, meeting the safety requirements for personnel passage and cargo loading and unloading. If the ship suddenly accelerates and drifts, causing the gap to widen rapidly, and if it tends to exceed 5 cm, the control unit will immediately increase the thrust of the patching device 3 to accelerate the unfolding speed of the sliding plate 35; if the patching device 3 malfunctions and cannot push the sliding plate 35, the elastic force of the first spring 33 can temporarily slow down the relative displacement between the sliding plate 35 and the ship, and at the same time, an audible and visual alarm will be activated to remind the operator to intervene on-site and avoid safety risks caused by excessive gap.

[0051] A stable support point is constructed by the support foot 12. The gangplank rotates and is fixed at the connection point with the ship's surface. The gangplank is adjusted in real time to keep the height difference between the gangplank and the ship's connection point at 0-3 cm. The gap between one end of the gangplank and the ship's clamping plate is kept at 2-5 cm by the patching plate device 3.

[0052] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0053] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A mobile hydraulic scaffolding vehicle, characterized in that, include: The vehicle body (11) has support feet (12) connected to both sides. A wheeled chassis (15) is fixedly connected to the upper surface of the vehicle body (11). A gearbox (17) is rotatably connected to the top of the wheeled chassis (15). A ramp device (2) is connected to the gearbox (17). The ramp device (2) is configured to rotate in the horizontal and / or vertical direction and make an angle of 90 degrees with the longitudinal axis of the ship. A patch device (3) is slidably connected to the end of the ramp device (2) away from the gearbox (17). The patch device (3) is used to be pulled out during the ship's drifting process and to keep the gap between one end of the ramp and the ship's clamping plate 2-5 cm. The patch device (3) is connected to the ship's clamping plate through an end stabilizing device (4). The end stabilizing device (4) is configured to move synchronously with the ship and pull the patch device (3).

2. The mobile hydraulic scaffolding vehicle according to claim 1, characterized in that, The support foot (12) includes: a corner block (121), one side of which is fixedly connected to one side of the vehicle body (11). Several corner blocks (121) are equidistantly connected to each side of the vehicle body (11). Each corner block (121) has a placement groove (16) on one side. A first side plate (122) is connected to both sides of each corner block (121). A first rotating shaft (125) is provided between two first side plates (122). One end of the first rotating shaft (125) passes through the inner wall of the corner block (121) and is slidably connected to the inner wall of the corner block (121). Both ends of the first rotating shaft (125) are fixedly connected to one side of each of the two first side plates (122). Each of the placement slots (16) is connected to a first hydraulic cylinder (124) at its bottom. The telescopic end of each first hydraulic cylinder (124) is connected to a connecting plate (127). Each connecting plate (127) is connected to an arm plate (126) on both sides. The bottom end of the arm plate (126) is provided with a second rotating shaft (128). One end of the second rotating shaft (128) passes through the inner wall of the arm plate (126) and is rotatably connected to the inner wall of the arm plate (126). Both sides of the second rotating shaft (128) are connected to a second side plate (129). The bottom of the second side plate (129) is fixedly connected to a support plate (123). The support foot (12) is used to unfold under hydraulic action and abut against the ground.

3. The mobile hydraulic scaffolding vehicle according to claim 2, characterized in that, The ramp device (2) includes: a lower plate (22), which is located above the vehicle body (11). End blocks (27) are provided on both sides of one end of the lower plate (22). The end blocks (27) are slidably connected to the telescopic end of the second hydraulic cylinder (28). An upper plate (23) is fixedly connected to one end of the lower plate (22). A support column (24) and a support ramp (25) are provided between the upper plate (23) and the lower plate (22). The two sides of the support column (24) are respectively connected to the sides of the upper plate (23) and the lower plate (22) that are close to each other. Each support ramp (25) 25) are all set between adjacent support columns (24), the support columns (24) are located outside the support inclined plate (25), the support columns (24) and the support inclined plate (25) are both set at the edge of the lower plate (22), the two sides of the middle part of the upper plate (23) are connected to the traction member (21), and several first rods (26) are connected at the edge of the upper surface of the upper plate (23). The first rods (26) are inserted into the upper plate (23), and adjacent first rods (26) are connected by connecting ropes (216). The upper plate (23) and the lower plate (22) form a springboard.

4. The mobile hydraulic scaffolding vehicle according to claim 3, characterized in that, The traction component (21) includes: a first upright plate (211), one side of which is fixedly connected to one side of the ramp, a top plate (212) connected to the top of the first upright plate (211), and several fixing rings (213) fixedly connected to the side of the first upright plate (211). Each fixing ring (213) is fixedly connected to a connecting rope (216), and each connecting rope (216) is tied to a first rod (26) on one side of the upper plate (23). Both sides of (211) are fixedly connected to end block (27). Two vertical holes (52) are opened through the upper surface of one end of the upper plate (23). The two vertical holes (52) are symmetrically distributed along the longitudinal axis of the upper plate (23). A bottom groove (51) is opened between the upper plate (23) and the lower plate (22). The top of the bottom groove (51) is connected to the bottom of the vertical hole (52). A bottom hole (53) is opened through the bottom of one end of the lower plate (22). The bottom hole (53) is connected to the bottom of the ground groove.

5. The mobile hydraulic scaffolding vehicle according to claim 4, characterized in that, The patching device (3) includes: a sliding plate (35), which is slidably connected to the bottom groove (51), and sliding plates (31) connected to both sides of the sliding plate (35). The sliding plates (31) are slidably connected to the vertical holes (52). A first spring (33) is connected to one side of the sliding plate (35) through a second vertical plate (32). One end of the first spring (33) is connected to a third vertical plate (34). Two strip holes (36) are provided through the top of the sliding plate (35). The two strip holes (36) are symmetrical about the longitudinal axis of the sliding plate (35). The slide plate (35) is connected to a rotating hook (37) at one end of its bottom corner. Several second rods (38) are equidistantly connected to the top of the second upright plate (32). Adjacent second rods (38) are connected by elastic ropes (39). One end of the elastic rope (39) is fixedly connected to a fixing ring (213). The top of the sliding plate (31) passes through a vertical hole (52). The second upright plate (32) is slidably connected to the bottom groove (51). The two sides of the third upright plate (34) are fixedly connected to the side of the upper plate (23) and the lower plate (22) that are close to it.

6. The mobile hydraulic scaffolding vehicle according to claim 5, characterized in that, The rotating hook component (37) includes: a third rotating shaft (371), which is located directly below the slide plate (35). Both ends of the third rotating shaft (371) are connected to flat plates (372). The top of the flat plates (372) is fixedly connected to the bottom of the slide plate (35). The third rotating shaft (371) is rotatably connected to a rotating cylinder (373). The side of the rotating cylinder (373) is connected to a protruding plate (375) through a horizontal plate (374). The bottom end of the protruding plate (375) is connected to a hook plate (376). A through hole (377) is provided on one side of the protruding plate (375).

7. The mobile hydraulic scaffolding vehicle according to claim 6, characterized in that, The end-stabilizing device (4) includes: a fixing plate (41) connected to the ship deck; a vertical block (42) fixedly connected to the upper surface of both ends of the fixing plate (41); a fixing hole (43) penetrating through the top of the fixing plate (41); the fixing hole (43) being fixedly connected to the ship's clamping plate via a threaded rod; a fourth rotating shaft (46) provided between the two fixing plates (41); two pressure plates (45) slidably connected to the third rotating shaft (371); the two pressure plates (45) being symmetrically distributed along the longitudinal axis of the fixing plate (41); and the opposite sides of the two pressure plates (45) being connected to the vertical block (42) via a second spring (44). The upper surface of the fixed plate (41) is provided with a sliding groove (48). Each of the pressure plates (45) is connected to a slider (49) at the bottom. The slider (49) is slidably connected to the sliding groove (48). A first channel (54) and a second channel (55) are provided through one side of the pressure plate (45). A third channel (56) is provided through one side of the upright block (42). One end of the fourth rotating shaft (46) passes through the second channel (55) and is slidably connected to the second channel (55). One end of the insertion rod (47) passes through the third channel (56) and is inserted into the second channel (55). The pressure plate (45) is adapted to the moving plate (31). The pressure plate (45) is located outside the moving plate (31).

8. A method applied to the mobile hydraulic ramp vehicle according to any one of claims 7, characterized in that: The end stabilizing device (4) is fixedly installed at the connection of the ship's gangway. The gearbox (17) drives the gangway to rotate and makes the gangway and the ship form a 90-degree angle. The second hydraulic cylinder (28) is driven and the lower end of the gangway and the patching device (3) are placed on the ship's gangway. The hook plate (376) is rotated and connected to the fourth shaft (46) on the end stabilizing device (4). One end of the insertion rod (47) passes through the second channel (55) and the third channel (56). The end stabilizing device (4) and the patching device (3) are fixedly connected. The image of the ship's gangway and the gangway is captured in real time by a camera and the height difference between the two is obtained. When the height difference between the two is greater than 3-5 cm, the second hydraulic cylinder (28) is activated and the angle of the gangway is changed, so that the gangway... When the ship drifts laterally, the transfer plate (31) presses against the pressure plate (45), the second spring (44) is compressed, and the hook plate (376), the slide plate (35), and the gangway move horizontally along the axis of the fourth pivot (46). The spring absorbs and stores the energy from the ship's lateral drift, reducing the vibration of the gangway. After being compressed, the second spring (44) generates a reverse restoring force, which dampens the movement of the gangway and reduces the amplitude of the gangway's movement. When the ship drifts longitudinally, the ship moves away from the gangway, and the ship drives the patching plate device (3) through the end stabilizing device (4). The slide plate (35) unfolds as the ship moves, preventing the gap between the ship's clamp and the gangway from exceeding 5 cm.

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