Onboard boarding ladder and use method thereof

Abstract

The invention relates to a boarding ladder along with a ship and a using method thereof, and solves the problems that when a marine ship is in shore, the ship ascends and descends along with sea waves, the boarding ladder cannot be stably butted with a ship side, and personnel have the risk of falling off when getting up and down. The device comprises a fixed base station arranged on the outer wall below a ship side, a boarding ladder with the lower end capable of swinging outwards is hinged to the fixed base station, the boarding ladder comprises a fixed ladder and a sliding ladder, the upper portion of the fixed ladder is hinged to the fixed base station, the sliding ladder is arranged along the fixed ladder in a sliding mode, fixed ladder pedals are evenly arranged on the fixed ladder, and the fixed ladder pedals are connected with the fixed base station. Sliding ladder pedals are uniformly arranged on the sliding ladder, the bottom end of the sliding ladder is provided with an extension ladder which can be telescopically adjusted, and extension ladder pedals are arranged on the extension ladder. The boarding ladder can be self-adjusted to adapt to the height difference between a shipboard and a wharf, stable butt joint of the boarding ladder and the shipboard is guaranteed, and the risk of personnel falling is reduced.

Description

Technical Field

[0001] The invention belongs to the field of ship facilities and relates to a ship boarding ladder and a use method thereof. Background Art

[0002] Ships are a great invention that allows people to cross waters. When a small ship docks, the side of the ship can be flush with the dock, making it convenient for people to get on and off. When medium and large ships dock, the height difference between the side of the ship and the dock is large, and a boarding ladder needs to be set up between the side of the ship and the dock to facilitate people to get on and off. At the dock near the sea, the ocean surge is large, and the ship will float up and down with the waves when docked. The relative height difference between the side of the ship and the dock cannot remain stable. Therefore, after placing the boarding ladder, as the ship floats and sinks, the boarding ladder cannot be kept flush with the side of the ship, causing the boarding ladder to shake constantly, and there is a risk of falling when people go on and off. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that when an ocean vessel docks, the ship rises and falls with the surge of waves, the boarding ladder cannot maintain a stable connection with the ship's side, and there is a risk of people falling up and down. A ship's boarding ladder and a method for using the same are provided. A retractable device is used to adaptively adjust the boarding ladder so that the boarding ladder can adapt to the height difference between the ship's side and the dock in real time, thereby reducing the risk of people falling.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a ship-borne boarding ladder, including a fixed base arranged on the outer wall below the ship's side, a boarding ladder with a lower end that can swing outward is hingedly arranged on the fixed base, the boarding ladder includes a fixed ladder and a sliding ladder, the upper part of the fixed ladder is hinged to the fixed base, the sliding ladder is slidably arranged along the fixed ladder, fixed ladder pedals are evenly arranged on the fixed ladder, sliding ladder pedals are evenly arranged on the sliding ladder, a telescopic ladder that can be telescopically adjusted is arranged at the bottom end of the sliding ladder, and a telescopic ladder pedal is arranged on the telescopic ladder.

[0005] This device is installed on the outside of the ship's side and does not occupy the plywood space. When docking, the boarding ladder can be quickly opened and set up. As the ship rises and falls with the waves, the relative position of the boarding ladder and the ship's side is ensured to be stable. The higher the ladder section, the more stable the position is, reducing the risk of people falling.

[0006] Preferably, the fixed ladder has parallel fixed ladder frames on both sides, and the fixed ladder pedals are arranged between the two fixed ladder frames; the sliding ladder has parallel sliding ladder frames on both sides, and the sliding ladder pedals are arranged between the two sliding ladder frames; the telescopic ladder has parallel telescopic ladder frames on both sides, and the telescopic ladder pedals are arranged between the telescopic ladder frames.

[0007] Preferably, the upper end of the telescopic ladder frame is inserted into the lower end of the sliding ladder frame, and a spring is provided at the upper end of the insertion end of the telescopic ladder frame.

[0008] Preferably, a lifting mechanism is provided on the top of the fixed ladder, and the lifting mechanism includes a winch, and a steel cable is wound on the winch, and the lower end of the steel cable is suspended on the top of the sliding ladder.

[0009] Preferably, the sliding ladder frame and the fixed ladder frame are slidably matched with a slide rail and a slide block.

[0010] Preferably, first handrails are provided on both sides of the fixed ladder, and second handrails are provided on both sides of the sliding ladder. The first handrail and the second handrail are provided independently of each other, and the second handrail is provided on the inner side of the first handrail.

[0011] Preferably, the fixed ladder tread is a rotating structure, with both ends of the fixed ladder tread hinged to the fixed ladder frame, a traction rod is provided on one side of the fixed ladder tread, and a telescopic cylinder fixed to the fixed ladder frame is provided at the end of the traction rod, and the telescopic cylinder is a pneumatic cylinder or an electric cylinder.

[0012] Preferably, the sliding ladder pedal is a rotating structure, both ends of the sliding ladder pedal are hinged to the sliding ladder frame, a traction rod is provided on one side of the sliding ladder pedal, and a telescopic cylinder fixed to the sliding ladder frame is provided at the end of the traction rod, and the telescopic cylinder is a pneumatic cylinder or an electric cylinder.

[0013] Preferably, a swing drive mechanism is provided at the lower end of the fixed base, and the swing drive structure includes a self-locking drive motor installed on the fixed base, a drive gear is provided at the output end of the drive motor, and an arc-shaped internal rack is fixed on the fixed ladder, and the arc-shaped internal rack is meshed with the drive gear for transmission.

[0014] A method for using a ship-mounted boarding ladder, using the ship-mounted boarding ladder, comprises the following steps: S1, after the ship docks, the lower end of the boarding ladder is driven to swing outward at an inclined angle; S2, slide the sliding ladder downward along the fixed ladder until the lower end of the telescopic ladder touches the ground of the dock; S3, start the telescopic cylinders of the sliding ladder and the fixed ladder, and adjust the angles of the sliding pedal and the fixed pedal so that the height of the sliding pedal and the fixed pedal facing the hull side is lower than the height facing the dock side; S4, as the ship floats slightly, the telescopic ladder can adjust the length of the entire boarding ladder through telescopic adaptability to keep the upper boarding ladder stable; S5, the floating amplitude of the ship increases, and the sliding ladder slides along the fixed ladder to ensure that one section of the fixed ladder is stably docked with the ship's side.

[0015] The boarding ladder set up by the present invention can self-adjust to adapt to the height difference between the ship's side and the dock, ensure the stability of the boarding ladder and the ship's side, and reduce the risk of people falling; the pedal of the boarding ladder can adjust the inclination angle so that the angle of the pedal is toward one side of the hull, thereby improving safety during the boarding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is an overall structural diagram of the present invention.

[0018] Figure 2 The present invention Figure 1 Schematic diagram of the structure at point A in .

[0019] Figure 3 The present invention is a schematic diagram of a boarding ladder pedal control structure.

[0020] Figure 4 It is a structural schematic diagram of a telescopic ladder of the present invention.

[0021] In the figure: 1, ship's side, 2, dock floor, 3, fixed base, 4, swing drive mechanism, 5, fixed ladder, 6, sliding ladder, 7, telescopic ladder, 8, first handrail, 9, second handrail, 10, lifting mechanism, 11, telescopic cylinder, 12, traction rod, 13, fixed ladder pedal, 14, sliding ladder pedal, 15, telescopic ladder pedal, 16, fixed ladder frame, 17, sliding ladder frame, 18, telescopic ladder frame, 19, drive motor, 20, drive gear, 21, arc-shaped inner rack, 22, spring. DETAILED DESCRIPTION

[0022] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings.

[0023] Embodiment: A ship-mounted boarding ladder, such as Figure 1 The device comprises a fixed base 3 arranged on the outer wall below the ship's side 1, on which a boarding ladder with a lower end that can swing outward is hingedly arranged, and the boarding ladder comprises a fixed ladder 5 and a sliding ladder 6. The upper part of the fixed ladder 5 is hinged to the fixed base 3, and the sliding ladder 6 is slidably arranged along the fixed ladder 5. The bottom end of the sliding ladder is provided with a telescopic ladder 7 that can be telescopically adjusted. Figure 4 As shown, the fixed ladder 5 has parallel fixed ladder frames 16 on both sides, and the fixed ladder pedal 13 is arranged between the two fixed ladder frames; the sliding ladder 6 has parallel sliding ladder frames 17 on both sides, and the sliding ladder pedal 14 is arranged between the two sliding ladder frames; the telescopic ladder 7 has parallel telescopic ladder frames 18 on both sides, and the telescopic ladder pedal 14 is arranged between the telescopic ladder frames. The upper end of the telescopic ladder frame 18 is inserted into the lower end of the sliding ladder frame 17, and a spring 22 is arranged at the upper end of the insertion end of the telescopic ladder frame. The sliding ladder frame 17 and the fixed ladder frame 16 are slidably matched by a slide rail and a slider. The fixed ladder 5 is provided with a first handrail 8 on both sides, and the sliding ladder 6 is provided with a second handrail 9 on both sides. The first handrail 8 and the second handrail 9 are arranged independently of each other, and the second handrail 9 is arranged on the inner side of the first handrail 8.

[0024] like Figure 2 As shown, a swing drive mechanism 4 is provided at the lower end of the fixed base 3, and the swing drive structure includes a self-locking drive motor 19 installed on the fixed base, a drive gear 20 is provided at the output end of the drive motor, and an arc-shaped internal rack 21 is fixed on the fixed ladder, and the arc-shaped internal rack is meshed with the drive gear for transmission.

[0025] like Figure 1 , 3 As shown, a lifting mechanism 10 is provided on the top of the fixed ladder 5 , and the lifting mechanism 10 includes a winch, and a steel cable is wound around the winch, and the lower end of the steel cable is suspended on the top of the sliding ladder 6 .

[0026] like Figure 1 , 3 As shown, the fixed ladder pedal 13 is a rotating structure, and both ends of the fixed ladder pedal 13 are hinged to the fixed ladder frame 16. A traction rod 12 is provided on one side of the fixed ladder pedal 13, and a telescopic cylinder 10 fixed to the fixed ladder frame is provided on the end of the traction rod. The telescopic cylinder is a pneumatic cylinder or an electric cylinder. The sliding ladder pedal 14 is a rotating structure, and both ends of the sliding ladder pedal 14 are hinged to the sliding ladder frame 17. A traction rod 12 is provided on one side of the sliding ladder pedal, and a telescopic cylinder 10 fixed to the sliding ladder frame is provided on the end of the traction rod. The telescopic cylinder is a pneumatic cylinder or an electric cylinder.

[0027] The method of using the device includes the following steps: S1, after the ship docks, the lower end of the boarding ladder is driven to swing outward at an inclined angle; S2, slide the sliding ladder downward along the fixed ladder until the lower end of the telescopic ladder touches the ground of the dock; S3, start the telescopic cylinders of the sliding ladder and the fixed ladder, and adjust the angles of the sliding pedal and the fixed pedal so that the height of the sliding pedal and the fixed pedal facing the hull side is lower than the height facing the dock side; S4, as the ship floats slightly, the telescopic ladder can adjust the length of the entire boarding ladder through telescopic adaptability to keep the upper boarding ladder stable; S5, the floating amplitude of the ship increases, and the sliding ladder slides along the fixed ladder to ensure that one section of the fixed ladder is stably docked with the ship's side.

Claims

1. A ship-mounted boarding ladder, characterized in that: It comprises a fixed base arranged on the outer wall below the ship's side, a boarding ladder with a lower end that can swing outwards is hingedly arranged on the fixed base, the boarding ladder comprises a fixed ladder and a sliding ladder, the upper part of the fixed ladder is hinged to the fixed base, the sliding ladder is slidably arranged along the fixed ladder, fixed ladder pedals are evenly arranged on the fixed ladder, sliding ladder pedals are evenly arranged on the sliding ladder, a telescopic ladder that can be telescopically adjusted is arranged at the bottom end of the sliding ladder, and a telescopic ladder pedal is arranged on the telescopic ladder.

2. The ship-mounted boarding ladder according to claim 1, characterized in that: The fixed ladder has parallel fixed ladder frames on both sides, and the fixed ladder pedals are arranged between the two fixed ladder frames; the sliding ladder has parallel sliding ladder frames on both sides, and the sliding ladder pedals are arranged between the two sliding ladder frames; the telescopic ladder has parallel telescopic ladder frames on both sides, and the telescopic ladder pedals are arranged between the telescopic ladder frames.

3. The ship-mounted boarding ladder according to claim 2, characterized in that: The upper end of the telescopic ladder frame is inserted into the lower end of the sliding ladder frame, and a spring is arranged on the upper end of the insertion end of the telescopic ladder frame.

4. The ship-mounted boarding ladder according to claim 1, characterized in that: A lifting mechanism is arranged on the top of the fixed ladder. The lifting mechanism comprises a winch. A steel cable is wound around the winch. The lower end of the steel cable is suspended on the top of the sliding ladder.

5. The ship-mounted boarding ladder according to claim 2, characterized in that: The sliding ladder frame and the fixed ladder frame are slidably matched by a slide rail and a sliding block.

6. The ship-mounted boarding ladder according to claim 1, characterized in that: The fixed ladder is provided with first handrails on both sides, and the sliding ladder is provided with second handrails on both sides. The first handrail and the second handrail are provided independently of each other, and the second handrail is provided on the inner side of the first handrail.

7. The ship-mounted boarding ladder according to claim 2, characterized in that: The fixed ladder pedal is a rotating structure, and both ends of the fixed ladder pedal are hinged with the fixed ladder frame. A traction rod is provided on one side of the fixed ladder pedal, and a telescopic cylinder fixed to the fixed ladder frame is provided at the end of the traction rod. The telescopic cylinder is a pneumatic cylinder or an electric cylinder.

8. The ship-mounted boarding ladder according to claim 2, characterized in that: The sliding ladder pedal is a rotating structure, and both ends of the sliding ladder pedal are hinged with the sliding ladder frame. A traction rod is arranged on one side of the sliding ladder pedal, and a telescopic cylinder fixed to the sliding ladder frame is arranged at the end of the traction rod. The telescopic cylinder is a pneumatic cylinder or an electric cylinder.

9. The ship-mounted boarding ladder according to claim 1, characterized in that: A swing drive mechanism is arranged at the lower end of the fixed base, and the swing drive structure comprises a self-locking drive motor installed on the fixed base, a drive gear is arranged at the output end of the drive motor, an arc-shaped internal rack is fixed on the fixed ladder, and the arc-shaped internal rack meshes with the drive gear for transmission.

10. A method for using a ship embarkation ladder, using the ship embarkation ladder according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, after the ship docks, the lower end of the boarding ladder is driven to swing outward at an inclined angle; S2, slide the sliding ladder downward along the fixed ladder until the lower end of the telescopic ladder touches the ground of the dock; S3, start the telescopic cylinders of the sliding ladder and the fixed ladder, and adjust the angles of the sliding pedal and the fixed pedal so that the height of the sliding pedal and the fixed pedal facing the hull side is lower than the height facing the dock side; S4, as the ship floats slightly, the telescopic ladder can adjust the length of the entire boarding ladder through telescopic adaptability to keep the upper boarding ladder stable; S5, the floating amplitude of the ship increases, and the sliding ladder slides along the fixed ladder to ensure that one section of the fixed ladder is stably docked with the ship's side.

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