A ship ladder tool

Abstract

The application relates to the technical field of ship building, and discloses a ship up-and-down ladder tool, which comprises a plurality of unit ladders arranged in a stack-up mode, wherein each unit ladder comprises a step ladder and a rectangular frame, the top surface of the frame is provided with a first mesh plate, the bottom surface of the frame is provided with a second mesh plate, an outlet is formed in the first mesh plate, an inlet matched with the outlet is formed in the second mesh plate, the step ladder is arranged in the frame in an inclined mode, the top of the step ladder is connected with the outlet, the bottom of the step ladder is connected with the second mesh plate, the top surface and the bottom surface of the frame are both provided with a connecting plate, the connecting plates of two adjacent frames are connected through bolts, and a collision pad is arranged on one side of the frame close to the outer plate of the ship; a hook matched with the outer plate of the ship is arranged on the top of the frame of the unit ladder located at the top layer; the ship up-and-down ladder tool is convenient for personnel to get on and off the ship during the ship building process, and the hooking and hanging mode makes the erection and removal simple and convenient, and the ship is not damaged.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a tooling for boarding and disembarking ships. Background Technology

[0002] During the ship's construction in the dock, personnel need to use scaffolding ladders to board and disembark from the dock. The conventional approach is to erect temporary scaffolding from the bottom of the dock upwards. This approach has several drawbacks: ① A large number of scaffolds are required. Scaffolding is erected after the ship enters the dock, dismantled before relocation, and re-erected before leaving the dock. This repeated dismantling and reassembly results in a large workload. ② After the ship is relocated, personnel can only board after the scaffolding is fully erected, impacting construction efficiency and increasing wasted time. ③ The scaffolding, erected from the dock floor to the main deck, is tall and slender. To ensure stability and safety, connecting rods need to be added and welded to the hull, increasing the workload of welding, cutting, grinding, and painting. Summary of the Invention

[0003] The purpose of this invention is to provide a shipboard ladder tool that facilitates personnel getting on and off the ship during the shipbuilding process. Moreover, the fastening method makes the setup and dismantling simple and convenient without damaging the ship.

[0004] To achieve the above objectives, the present invention provides a ship ladder mounting and dismounting fixture, comprising multiple stacked unit ladders. Each unit ladder includes steps and a rectangular frame. The top surface of the frame is provided with a first mesh plate, and the bottom surface of the frame is provided with a second mesh plate. An outlet is provided on the first mesh plate, and an inlet that mates with the outlet is provided on the second mesh plate. The steps are inclinedly disposed within the frame, with the top of the steps connected to the outlet and the bottom of the steps connected to the second mesh plate. Connecting plates are provided around the top and bottom surfaces of the frame, and adjacent connecting plates of two frames are connected by bolts. A crash pad is provided on the side of the frame closest to the ship's outer plating. The top of the frame of the top unit ladder is provided with a hook that engages with the ship's outer plating.

[0005] As a preferred embodiment of the present invention, the unit ladder located at the bottom layer is arranged on the welding machine platform, and the connecting plate on the unit ladder located at the bottom layer is connected to the welding machine platform by bolts.

[0006] As a preferred embodiment of the present invention, the hook is provided with a connecting eye plate, the connecting eye plate and the hook are integral structures, and the ship is welded with an ear plate, the ear plate and the connecting eye plate are connected by bolts.

[0007] As a preferred embodiment of the present invention, the anti-collision pad includes a support rod, a connecting steel plate and an anti-collision rubber pad, wherein the support rod is connected between the connecting steel plate and the frame, and the anti-collision rubber pad is connected to the connecting steel plate by bolts.

[0008] As a preferred embodiment of the present invention, a guardrail is provided above the unit ladder located at the top level, and a lifting lug is provided on the frame of the unit ladder located at the top level.

[0009] As a preferred embodiment of the present invention, a connecting plate is provided between two adjacent unit ladders. The connecting plate is vertically arranged, and a slot is provided in the middle of the connecting plate to engage with the two connecting plates that are fixed together. The upper end of the connecting plate is welded to the frame of the upper unit ladder, and the lower end of the connecting plate is welded to the frame of the lower unit ladder.

[0010] As a preferred embodiment of the present invention, the hook is provided with an anti-slip rubber pad.

[0011] As a preferred embodiment of the present invention, the frame is surrounded by a reinforced fence.

[0012] As a preferred embodiment of the present invention, a reinforcing plate is provided between the crossbeams and the vertical members of the frame.

[0013] Compared with the prior art, the ship ladder loading and unloading tool of this invention has the following advantages:

[0014] This invention allows for adjustment of the number of stacked unit ladders based on the ship's height. Adjacent unit ladders are connected and fixed via connecting plates to accommodate vessels of different sizes. The ship's loading and unloading ladders are hooked onto the free side of the ship's outer plating, allowing for direct erection or dismantling using hoisting equipment. This eliminates the need for scaffolding from the dock to the ship's upper structure, reducing the workload of repeated scaffolding erection and dismantling, and lowering the difficulty and intensity of the work. Furthermore, the addition of anti-collision pads prevents damage to the ship's outer plating from the loading and unloading ladders. Therefore, this invention facilitates personnel boarding and alighting the ship during construction, and the hook-and-loop design makes erection and dismantling simple and convenient without damaging the ship. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0016] Figure 1 A side view of a ship ladder loading / unloading tool provided by the present invention;

[0017] Figure 2 This is a front view of the unit ladder provided by the present invention;

[0018] Figure 3 A schematic diagram of the hook structure provided by the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the anti-collision pad provided by the present invention;

[0020] Figure 5 A top view of a ship ladder loading / unloading tool provided by the present invention;

[0021] In the diagram, 1 is a unit ladder; 11 is a step ladder; 12 is a frame; 13 is a first mesh panel; 131 is an exit; 14 is a connecting plate; 15 is a reinforced fence; 16 is a reinforced plate; 2 is a crash pad; 21 is a support rod; 22 is a connecting steel plate; 23 is a crash pad; 3 is a hook; 31 is a connecting eye plate; 32 is an anti-slip pad; 4 is a welding machine platform; 5 is a ship; 51 is an outer plate; 52 is a main deck; 53 is an ear plate; 6 is a guardrail; 7 is a lifting lug; and 8 is a connecting plate. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0024] like Figures 1 to 5 As shown, a preferred embodiment of the present invention provides a ship ladder assembly, comprising multiple stacked unit ladders 1. Each unit ladder 1 includes a step ladder 11 and a rectangular frame 12. The top surface of the frame 12 is provided with a first mesh plate 13, and the bottom surface of the frame 12 is provided with a second mesh plate. The first mesh plate 13 has an outlet 131, and the second mesh plate has an inlet that cooperates with the outlet 131. The step ladder 11 is inclinedly disposed within the frame 12. The top of the step ladder 11 is connected to the outlet 131, and the bottom of the step ladder 11 is connected to the second mesh plate. Handrails are provided on both sides of the step ladder 11. The top and bottom surfaces of the frame 12 are both surrounded by connecting plates 14. Adjacent connecting plates 14 of two frames 12 are connected by bolts. A crash pad 2 is provided on the side of the frame 12 closest to the outer plate 51 of the ship 5. The top of the frame 12 of the unit ladder 1 at the top layer is provided with a hook 3 that engages with the outer plate 51 of the ship 5.

[0025] This invention allows for adjustment of the number of stacked unit ladders 1 according to the height of the vessel 5. Adjacent unit ladders 1 are connected and fixed by connecting plates 14 to accommodate vessels of different sizes. The vessel ladder loading and unloading equipment is hung on the free side of the outer plate 51 of the vessel 5 via hooks 3, and can be directly erected or dismantled using hoisting equipment. This eliminates the need to build scaffolding from the dock bottom to the upper part of the vessel 5, reducing the workload of repeated scaffolding erection and dismantling, and lowering the difficulty and intensity of the work. At the same time, the addition of anti-collision pads 2 can prevent the vessel ladder loading and unloading equipment from damaging the outer plate 51 of the vessel 5. It is evident that this invention facilitates personnel getting on and off the vessel 5 during the construction process, and the hook-and-loop method makes erection and dismantling simple and convenient without damaging the vessel 5.

[0026] For example, the unit ladder 1 located at the bottom is set on the welding machine platform 4, and the connecting plate 14 on the unit ladder 1 located at the bottom is connected to the welding machine platform 4 by bolts. The existing welding machine platform 4 around the dock is used as a transfer platform to set up the ship loading and unloading ladder tooling, which can reduce the number of unit ladders 1 and further reduce the construction cost.

[0027] For example, the hook 3 is provided with a connecting eye plate 31, which is an integral structure with the hook 3. An ear plate 53 is welded on the ship 5, and the ear plate 53 is connected to the connecting eye plate 31 by bolts. In this way, the unit ladder 1 located at the top layer is fixed to the ear plate 53 on the ship 5 by the connecting eye plate 31, which improves the safety of use.

[0028] Specifically, the anti-collision pad 2 includes a support rod 21, a connecting steel plate 22, and an anti-collision pad 23. The support rod 21 is connected between the connecting steel plate 22 and the frame 12. The anti-collision pad 23 is bolted to the connecting steel plate 22. The anti-collision pad 2 can fit tightly against the outer plate 51 of the ship 5. The outer plate 51 of the ship 5 provides a backing force for the ship's ladder and elevator equipment, preventing the ship's ladder and elevator equipment from being suspended above the ship 5, and further improving the safety of use.

[0029] For example, a guardrail 6 is provided above the unit ladder 1 located at the top level to allow personnel to enter and exit the main deck 52 of the ship 5 from the top surface of the ship's ladder tooling. The frame 12 of the unit ladder 1 located at the top level is provided with lifting lugs 7, which facilitates the hoisting and installation or dismantling of the ship's ladder tooling by lifting equipment.

[0030] For example, a connecting plate 8 is provided between two adjacent unit ladders 1. The connecting plate 8 is vertically arranged, and a slot is provided in the middle of the connecting plate 8 to engage with two connecting plates 14 that are fixed together. The upper end of the connecting plate 8 is welded to the frame 12 of the upper unit ladder 1, and the lower end of the connecting plate 8 is welded to the frame 12 of the lower unit ladder 1. By adding the connecting plate 8, the connection strength between two adjacent unit ladders 1 is improved. Preferably, the slot is welded to the two connecting plates 14, which further improves the overall connection strength of the ship's ladder mounting and dismounting tooling.

[0031] For example, the hook 3 is provided with an anti-slip rubber pad 32, so that when the ship's ladder tool is hung on the top of the ship's outer plate 51, the hook 3 is prevented from scratching the ship's outer plate 51. At the same time, the anti-slip rubber pad 32 plays a certain role in preventing slippage and improving the safety of the ship's ladder tool.

[0032] For example, a reinforcing fence 15 is provided around the outer perimeter of the frame 12. The reinforcing fence 15 is a flat iron structure that surrounds the outer perimeter of the frame 12. This not only strengthens the structural stability of the frame 12, but also provides protection to prevent people from falling when going up or down the unit ladder 1.

[0033] For example, a reinforcing plate 16 is provided between the crossbeam and the vertical bar of the frame 12, thereby improving the structural strength of the frame 12.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] 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 substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A tooling system for boarding and disembarking ships, characterized in that, The system comprises multiple stacked unit staircases, each unit staircase including steps and a rectangular frame. The top surface of the frame has a first mesh panel, and the bottom surface has a second mesh panel. The first mesh panel has an exit, and the second mesh panel has an inlet that mates with the exit. The steps are inclined within the frame, with their tops connected to the exits and their bottoms connected to the second mesh panels. Connecting plates are arranged around the top and bottom surfaces of the frame, and adjacent connecting plates are bolted together. A crash pad is provided on the side of the frame closest to the ship's outer plating. The top of the frame of the top unit staircase has hooks that engage with the ship's outer plating. The connecting eye plate and the hook are integral structures. Ear plates are welded onto the ship, and these ear plates are bolted to the connecting eye plate. A guardrail is provided above the top-level unit ladder, and lifting lugs are provided on the frame of the top-level unit ladder. The bottom-level unit ladder is mounted on a welding machine platform, and a connecting plate on the bottom-level unit ladder is bolted to the welding machine platform. A connecting code plate is provided between two adjacent unit ladders. The connecting code plate is vertically arranged, and a locking slot is provided in the middle of the connecting code plate to engage with the two connecting plates. The upper end of the connecting code plate is welded to the frame of the upper unit ladder, and the lower end of the connecting code plate is welded to the frame of the lower unit ladder.

2. The ship ladder loading and unloading tooling as described in claim 1, characterized in that, The anti-collision pad includes a support rod, a connecting steel plate, and an anti-collision rubber pad. The support rod is connected between the connecting steel plate and the frame, and the anti-collision rubber pad is connected to the connecting steel plate by bolts.

3. The ship ladder loading and unloading tooling as described in claim 1, characterized in that, The hook is equipped with an anti-slip rubber pad.

4. The ship ladder loading and unloading tooling as described in claim 1, characterized in that, The frame is surrounded by a reinforced fence.

5. The ship ladder loading and unloading tooling as described in claim 1, characterized in that, A reinforcing plate is provided between the crossbeams and the vertical members of the frame.

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