Yacht boarding ladder structure capable of being quickly disassembled and assembled

Abstract

The utility model discloses a yacht boarding ladder structure capable of being quickly disassembled and assembled, and relates to the technical field of boarding ladders, the yacht boarding ladder structure comprises a first boarding ladder and a second boarding ladder, the outer wall of the second boarding ladder penetrates into the first boarding ladder, the front end of the first boarding ladder is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with a mounting base. The front end of the mounting plate is provided with an assembly capable of being rapidly disassembled and assembled, the left side and the right side of the top of the first boarding ladder are fixedly connected with first L-shaped handrails correspondingly, the left side and the right side of the top of the second boarding ladder are fixedly connected with second L-shaped handrails correspondingly, and the outer walls of the transverse faces of the second L-shaped handrails are slidably connected with the interiors of the transverse faces of the first L-shaped handrails; and a length adjusting mechanism is arranged at the bottom of the first boarding ladder. The boarding ladder is hung on a coaming of a yacht through the hanging lugs, the connected portion is clamped in a threaded moving mode, and after the boarding ladder is used, the boarding ladder can be rapidly disassembled.

Description

Technical Field

[0001] This utility model relates to the field of boarding ladder technology, specifically to a yacht boarding ladder structure that can be quickly disassembled and assembled. Background Technology

[0002] In developed countries, yachts, like cars, are mostly privately owned. In developing countries, however, yachts are primarily used as commercial projects in parks and tourist attractions for consumer purposes, and to a lesser extent as tools for port authorities, police, and border patrol. Boarding ladders are devices used in modern large oil tanker terminals to ensure the safe and smooth boarding and disembarking of loading and unloading personnel and crew during berthing operations. Traditional boarding systems rely on gangways carried by the ship itself. The existing technology has the following problems:

[0003] Since the boarding ladders on yachts are usually fixedly welded to both sides of the hull deck, the overall connection strength of the hull and the internal space are reduced. Secondly, the water level is not fixed, but changes in real time with the rise and fall of the tide. Therefore, the distance between the cabin and the ground is also variable. Traditional boarding ladders are simple in structure and do not have telescopic function, so they are inconvenient to use. Utility Model Content

[0004] This invention provides a yacht boarding ladder structure that can be quickly disassembled and assembled, in order to solve the problems existing in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A quick-assembly and quick-disassembly yacht boarding ladder structure includes a first boarding ladder and a second boarding ladder. The outer wall of the second boarding ladder extends through the interior of the first boarding ladder. A mounting plate is fixedly connected to the front end of the first boarding ladder, and a quick-assembly and quick-disassembly component is provided at the front end of the mounting plate. First L-shaped handrails are fixedly connected to the left and right sides of the top of the first boarding ladder, and the interior of the first L-shaped handrails is hollow. Second L-shaped handrails are fixedly connected to the left and right sides of the top of the second boarding ladder. The outer wall of the horizontal surface of the second L-shaped handrail is slidably connected to the interior of the horizontal surface of the first L-shaped handrail. A length adjustment mechanism is provided at the bottom of the first boarding ladder, and the top of the outer wall of the length adjustment mechanism extends through the interior of the first boarding ladder and is located at the front end of the second boarding ladder.

[0007] A further improvement of this utility model is that the quick-release assembly includes two U-shaped lugs, two clamping plates, a connecting plate, a movable plate, a screw, and a knob. The rear ends of the two U-shaped lugs are respectively fixedly connected to the left and right sides of the front end of the mounting plate. The two clamping plates are respectively set at the bottom of the U-shaped lugs. The left and right ends of the connecting plate are respectively fixedly connected to the opposite sides of the two clamping plates. The bottom of the movable plate is fixedly connected to the middle side of the top of the connecting plate. The outer wall of the screw penetrates the front and rear ends of the connecting plate and is threadedly connected between them. The rear end of the screw is rotatably connected to the front end of the mounting plate. The front end of the screw is fixedly connected to the middle of the knob.

[0008] A further improvement of this utility model is that: the front sides of the inner walls of the two U-shaped hooks are provided with a number of anti-slip tooth pads at equal intervals, and the front ends of the two clamps are provided with a number of anti-slip tooth pads at equal intervals.

[0009] A further improvement of this utility model is that: T-shaped grooves are provided on the transverse surfaces of the bottom of the two U-shaped lugs, and T-shaped sliders that are adapted to the T-shaped grooves are fixedly connected to the top of the two clamps, and the outer wall of the T-shaped slider is slidably connected to the inner wall of the T-shaped groove.

[0010] A further improvement of the present invention is that: an installation opening is provided at the front end of the first boarding ladder, a connecting groove is provided at the top of the first boarding ladder that communicates with the installation opening, a step is fixedly connected to the inner wall of the connecting groove, the step is made of anti-slip material, a plurality of vertically penetrating connecting holes are provided in a rectangular array on the surface of the step, and positioning grooves are provided on the left and right sides of the first boarding ladder near the installation opening.

[0011] A further improvement of this utility model is that: the outer wall of the second boarding ladder is sleeved with the interior of the installation opening; a connecting groove 2 is provided on the top of the second boarding ladder; a tread 2 is fixedly connected to the inner wall of the connecting groove 2; the tread 2 is made of the same material as the tread 1; a rectangular array of connecting holes 2 are provided on the surface of the tread 2; a number of protrusions are arranged in an equidistant array on the upper surface of the tread 2 near the rear side of the connecting holes 2; an L-shaped bracket is fixedly connected to the rear end of the outer wall of the second boarding ladder; the left and right sides of the outer wall of the L-shaped bracket respectively penetrate into the interior of the positioning groove and are slidably connected to each other.

[0012] A further improvement of the present invention is that the length adjustment mechanism includes a fixed plate one, a stepper motor, a lead screw, a fixed plate two, a moving block, and a T-shaped push plate. The external part of the stepper motor is fixedly connected to the front end of the fixed plate one. The output shaft of the stepper motor passes through the rear end of the fixed plate one and is fixedly connected to the front end of the lead screw. The rear end of the lead screw passes through the interior of the fixed plate two and is rotatably connected to it. The outer wall of the lead screw passes through the front and rear ends of the middle part of the moving block and is threadedly connected to it. The bottom of the T-shaped push plate in the vertical direction is fixedly connected to the top of the moving block.

[0013] A further improvement of the present invention is that: a movable groove communicating with the installation opening is provided on the middle side of the bottom of the first boarding ladder; the outer wall of the transverse surface of the T-shaped push plate passes through the movable groove into the installation opening and is fixedly connected to the front end of the second boarding ladder; the top of the first fixed plate is fixedly connected to the front side of the bottom of the first boarding ladder near the first connecting groove; and the top of the second fixed plate is fixedly connected to the rear side of the bottom of the first boarding ladder near the first connecting groove.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This utility model provides a quick-disassembly and detachable yacht boarding ladder structure. It adopts the cooperation between a first boarding ladder, a second boarding ladder mounting plate, and quick-disassembly and detachable components. The boarding ladder is hung on the yacht's bulkhead by using lugs, and the connection is clamped by threaded movement. After use, the boarding ladder can be quickly disassembled. This solves the problem that the boarding ladders on yachts are usually fixedly welded to both sides of the hull deck, which reduces the overall connection strength of the hull and internal space. It achieves the beneficial effect of conveniently and quickly disassembling and assembling the boarding ladder for yacht use.

[0016] This utility model provides a quick-assembly and disassembly yacht boarding ladder structure. It employs a first boarding ladder, a second boarding ladder, a first L-shaped handrail, a second L-shaped handrail, and a length adjustment mechanism. Based on the distance between the cabin and the ground, the second boarding ladder can automatically extend and retract along the inside of the first boarding ladder by controlling the length adjustment mechanism. Simultaneously, the second L-shaped handrails on both sides extend and retract along the inside of the first L-shaped handrail, acting as a support ladder. This solves the problem that water levels are not fixed but change in real time with high and low tides, thus the distance between the cabin and the ground is also variable. Traditional boarding ladders, due to their simple structure and lack of extension / retraction capabilities, are inconvenient to use. This invention achieves the beneficial effect of convenient automatic extension and retraction of the boarding ladder, making it easy to use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the yacht boarding ladder structure of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the quick-disassembly and assembly component of this utility model;

[0019] Figure 3 This is a partially enlarged schematic diagram of the A-dimensional structure of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the first and second boarding ladders of this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the length adjustment mechanism of this utility model.

[0022] In the diagram: 1. First boarding ladder; 101. Mounting port; 102. Connecting groove one; 103. Positioning groove; 104. Moving groove; 11. Step one; 110. Connecting hole one; 2. Second boarding ladder; 201. Connecting groove two; 21. Step two; 210. Connecting hole two; 22. Protrusion; 23. L-shaped bracket; 3. Mounting plate; 4. Quick-release assembly; 41. U-shaped hanging lug; 410. T-shaped slide; 411. Anti-slip toothed pad one; 42. Clamping plate; 421. Anti-slip toothed pad two; 422. T-shaped slider; 43. Connecting plate; 44. Movable plate; 45. Screw; 46. Knob; 5. First L-shaped handrail; 6. Second L-shaped handrail; 7. Length adjustment mechanism; 71. Fixed plate one; 72. Stepper motor; 73. Lead screw; 74. Fixed plate two; 75. Moving block; 76. T-shaped push plate. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a quick-release yacht boarding ladder structure, including a first boarding ladder 1 and a second boarding ladder 2. The outer wall of the second boarding ladder 2 extends into the interior of the first boarding ladder 1. An installation plate 3 is fixedly connected to the front end of the first boarding ladder 1. A quick-release assembly 4 is provided at the front end of the installation plate 3. First L-shaped handrails 5 are fixedly connected to the left and right sides of the top of the first boarding ladder 1, and the interior of the first L-shaped handrails 5 is hollow. Second L-shaped handrails 6 are fixedly connected to the left and right sides of the top of the second boarding ladder 2. The outer wall of the horizontal surface of the second L-shaped handrails 6 is slidably connected to the interior of the horizontal surface of the first L-shaped handrails 5. A length adjustment mechanism 7 is provided at the bottom of the first boarding ladder 1. The top of the outer wall of the length adjustment mechanism 7 extends into the interior of the first boarding ladder 1 and is located at the front end of the second boarding ladder 2.

[0025] The system includes a first boarding ladder 1, a second boarding ladder 2, a mounting plate 3, a quick-release assembly 4, a first L-shaped handrail 5, a second L-shaped handrail 6, and a length adjustment mechanism 7. Through the coordinated operation of the mounting plate 3 and the quick-release assembly 4, the boarding ladder can be installed and fixed on the yacht, and can also be quickly disassembled after use. During use, the boarding ladder can be automatically extended or retracted by operating the length adjustment mechanism 7 according to the distance between the cabin and the ground, making it convenient to use.

[0026] like Figure 2 As shown, this utility model provides a quick-assembly and disassembly yacht boarding ladder structure: the quick-assembly and disassembly component 4 includes two U-shaped lugs 41, two clamping plates 42, a connecting plate 43, a movable plate 44, a screw 45, and a knob 46. The rear ends of the two U-shaped lugs 41 are respectively fixedly connected to the left and right sides of the front end of the mounting plate 3. The two clamping plates 42 are respectively set at the bottom of the U-shaped lugs 41. The left and right ends of the connecting plate 43 are respectively fixedly connected to the opposite sides of the two clamping plates 42. The bottom of the movable plate 44 is fixedly connected to the middle side of the top of the connecting plate 43. The outer wall of the screw 45 penetrates the front and rear ends of the connecting plate 43 and is threadedly connected to each other. When the U-shaped lugs 41 are hung... On the yacht's bulkhead, by rotating the screw 45, the clamping plate 42 is moved back and forth via the connecting plate 43, further increasing the stability of the connection between the U-shaped lug 41 and the bulkhead. The rear end of the screw 45 is rotatably connected to the front end of the mounting plate 3, and the front end of the screw 45 is fixedly connected to the middle of the knob 46. Several anti-slip pads 411 are evenly arranged on the front side of the inner wall of the two U-shaped lugs 41, and several anti-slip pads 421 are evenly arranged on the front end of the two clamping plates 42. The anti-slip pads 411 and 421 increase the friction between the quick-release component 4 and the yacht, reducing the shaking when the boarding ladder is in use.

[0027] like Figure 3 As shown, this utility model provides a quick-assembly and disassembly yacht boarding ladder structure: T-shaped grooves 410 are provided on the horizontal surfaces at the bottom of the two U-shaped lugs 41, and T-shaped sliders 422 that are adapted to the T-shaped grooves 410 are fixedly connected to the top of the two clamping plates 42. The outer wall of the T-shaped slider 422 is slidably connected to the inner wall of the T-shaped groove 410. The clamping plates 42 slide along the T-shaped groove 410 through the T-shaped sliders 422, which has the effect of limiting the movement trajectory of the connecting plate 43.

[0028] like Figure 4As shown, this utility model provides a quick-assembly and disassembly yacht boarding ladder structure: A first boarding ladder 1 has an installation opening 101 at its front end. A connecting groove 102 communicating with the installation opening 101 is opened at the top of the first boarding ladder 1. A footplate 11 is fixedly connected to the inner wall of the connecting groove 102. The footplate 11 is made of anti-slip material, and its surface has a rectangular array of several vertically penetrating connecting holes 110. Positioning grooves 103 are respectively opened on the left and right sides of the first boarding ladder 1 near the installation opening 101. The outer wall of the second boarding ladder 2 is fitted into the interior of the installation opening 101. A vertically penetrating connecting groove 201 is opened at the top of the second boarding ladder 2. The inner wall of boarding ladder 1 is fixedly connected to a second step 21. The second step 21 is made of the same material as the first step 11. Both the first step 11 and the second step 21 are non-slip to ensure the safety of the user during boarding. The surface of the second step 21 has a rectangular array of through holes 210. Several protrusions 22 are equidistantly arranged on the rear side of the upper surface of the second step 21 near the through holes 210. The rear end of the outer wall of the second boarding ladder 2 is fixedly connected to an L-shaped bracket 23. The left and right sides of the outer wall of the L-shaped bracket 23 respectively penetrate into the interior of the positioning groove 103 and are slidably connected to each other. The L-shaped bracket 23 slides along the positioning groove 103 to further stabilize the second boarding ladder 2 during the extension and retraction process.

[0029] like Figure 5 As shown, this utility model provides a quick-assembly and disassembly yacht boarding ladder structure: the length adjustment mechanism 7 includes a fixed plate 71, a stepper motor 72, a lead screw 73, a second fixed plate 74, a moving block 75, and a T-shaped push plate 76. The stepper motor 72 is externally fixedly connected to the front end of the first fixed plate 71. The output shaft of the stepper motor 72 passes through the rear end of the first fixed plate 71 and is fixedly connected to the front end of the lead screw 73. The rear end of the lead screw 73 passes through the interior of the second fixed plate 74 and is rotatably connected thereto. The outer wall of the lead screw 73 passes through the front and rear ends of the middle of the moving block 75 and is threadedly connected thereto. The output shaft of the stepper motor 72 drives the moving block 75 to move back and forth, so that the T-shaped push plate 76 drives the second boarding ladder 2 along the installation opening 101. The telescopic movement adjusts the length of the boarding ladder. The bottom of the T-shaped push plate 76 is fixedly connected to the top of the moving block 75. The middle side of the bottom of the first boarding ladder 1 has a moving groove 104 that communicates with the installation port 101. The outer wall of the horizontal surface of the T-shaped push plate 76 passes through the moving groove 104 into the installation port 101 and is fixedly connected to the front end of the second boarding ladder 2. The T-shaped push plate 76 moves along the moving groove 104, further limiting the movement trajectory of the second boarding ladder 2. The top of the fixed plate 1 71 is fixedly connected to the front side of the bottom of the first boarding ladder 1 near the connecting groove 102. The top of the fixed plate 2 74 is fixedly connected to the rear side of the bottom of the first boarding ladder 1 near the connecting groove 102.

[0030] The working principle of this quick-assembly and disassembly yacht boarding ladder structure will be explained in detail below.

[0031] like Figure 1-5 As shown, when using the boarding ladder on the yacht, the operator hangs the two U-shaped lugs 41 on the first boarding ladder 1 onto the side panel of the yacht. Then, by turning the screw 45 through the knob 46, the movable plate 44 moves the clamping plates 42 on both sides through the connecting plate 43, clamping and fixing the surface of the panel. The anti-slip toothed pads 411 and 421 are in close contact with the surface of the panel, increasing the stability of the boarding ladder installation. The wires on the stepper motor 72 are connected to the power supply, depending on the distance of the cabin from the ground. When the distance between the surfaces is adjusted, the stepper motor 72 is started. The output shaft of the stepper motor 72 drives the lead screw 73 to rotate, causing the moving block 75 to extend downward from the installation port 101 through the T-shaped push plate 76. The second L-shaped handrail 6 extends along the movement of the first L-shaped handrail 5 until the L-shaped bracket 23 contacts the ground. When boarding the ship, the user holds the second L-shaped handrail 6 and the first L-shaped handrail 5, and walks on the second step plate 21 and the first step plate 11 to ensure safety during the boarding process.

[0032] The specific type and structure of the stepper motor used are all existing products, and the specific circuit connection structure and control relationship of the stepper motor are also existing technologies, which will not be elaborated on here.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

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