Boarding device with retractable structure

Abstract

The utility model relates to the technical field of ships, and discloses a boarding device with a retractable structure, which comprises a fixed plate, upper clamping seats are symmetrically mounted on the fixed plate, a plurality of ladder plates are arranged between the two upper clamping seats, the ladder plates are distributed in a ladder shape, first movable strips are arranged on two sides of each ladder plate, and second movable strips are arranged on two sides of each ladder plate. The first movable strips on the two sides of the ladder plate located on the top are connected with the upper clamping base through connecting rods, and the first movable strips between the connected ladder plates are connected through the second movable strips. The first movable strip and the second movable strip are turned over and stretched step by step through operation of stretching the ladder plates, so that the multiple ladder plates are fully unfolded. The process acts on the linkage arm and the movable arm, the tension spring is promoted to stretch, and the unfolding action is completed. When the folding ladder is recycled, the ladder plate is pushed upwards, so that the movable strip I and the movable strip II are turned over in sequence, and the ladder plate can be folded. The scheme has the characteristics of novel structure, small size, rapid folding and unfolding and the like, and the use convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a boarding device with a retractable structure. Background Art

[0002] Ships refer to large surface vehicles used for sailing on water, including various types of ships, such as cargo ships, passenger ships, fishing boats, yachts, etc. Ships can be used for different purposes such as commercial transportation, tourism, fishing, scientific research, etc. Ships are usually composed of hulls, propulsion devices, navigation equipment, deck facilities, etc. There are many types and uses of ships, and they play an important role in marine transportation, maritime exploration, and the development of marine resources.

[0003] In the shipbuilding industry, the use of ships has become a key link. Among them, the design and operation convenience of boarding devices are particularly important. However, the current ship boarding devices are too complex in structure, not easy to operate, and more importantly, they cannot achieve the function of rapid retraction and deployment. This problem has restricted the efficiency of ship use to a certain extent and increased the difficulty of ship operation.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a boarding device with a retractable structure. Utility Model Content

[0005] The utility model aims to provide a boarding device with a retractable structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A technical solution for a boarding device with a retractable structure, comprising a fixed plate, on which an upper base is symmetrically installed, a plurality of ladder plates are arranged between two upper bases, the plurality of ladder plates are distributed in a stepped manner, and a movable bar 1 is arranged on both sides of each ladder plate, the movable bars 1 on both sides of the ladder plate located at the top are connected to the upper base through a connecting rod, and the movable bars 1 between the ladder plates are connected through a movable bar 2.

[0008] As a preferred technical solution, the movable bar 1 and the movable bar 2 are connected by a connecting rod, and bolts are provided on the end faces of the connecting rod.

[0009] As a preferred technical solution, a lower card seat is arranged below the upper card seat, a movable arm is arranged on the lower card seat, and a linkage arm is arranged at the end of the movable arm, and the linkage arm is connected to the intersection of the movable bar 1 and the movable bar 2.

[0010] As a preferred technical solution, a tension spring is arranged on the upper clamping seat, a movable opening is arranged through the movable arm, and the tail end of the tension spring is connected to the movable opening.

[0011] As a preferred technical solution, the upper clamping seat and the lower clamping seat are assembled and connected with the fixed plate by bolts, the movable arm and the lower clamping seat are movably connected by a pin, the linkage arm and the movable arm are movably connected by a pin, and the linkage arm and movable bar one and movable bar two are movably connected by a pin.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is a boarding device with a retractable structure. By operating the stretched ladder plate, the movable bar 1 and the movable bar 2 are flipped, and the ladder plates are stretched step by step to fully unfold the multiple ladder plates. This process acts on the linkage arm and the movable arm, causing the tension spring to stretch and complete the unfolding action. When retracting, it is only necessary to push the ladder plate upward to flip the movable bar 1 and the movable bar 2 in turn, so that the ladder plate can be folded. This solution has the characteristics of novel structure, compact size, rapid retraction and unfolding, and greatly improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a boarding device with a retractable structure;

[0015] Figure 2 The present invention is a schematic diagram of the unfolded structure of a boarding device with a retractable structure.

[0016] In the accompanying drawings, 1, fixed plate; 211, upper clamping seat; 212, lower clamping seat; 22, ladder plate; 23, movable bar 1; 24, connecting rod; 25, movable bar 2; 26, bolt; 27, movable arm; 271, movable opening; 28, linkage arm; 29, tension spring. DETAILED DESCRIPTION

[0017] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0018] like Figure 1 , Figure 2As shown, the utility model provides a technical solution of a boarding device with a retractable structure: comprising a fixing plate 1, which plays the role of supporting and assembling the entire device. Two symmetrically arranged upper clamps 211 are provided above the fixing plate 1. A plurality of ladder plates 22 are arranged in the area between the two upper clamps 211. These ladder plates 22 are distributed in a stepped manner, aiming to achieve the functional requirements of the device.

[0019] Each ladder plate 22 is provided with movable bars 1 23 on both sides, which play a key role in the use of the device. The movable bars 1 23 on both sides of the top ladder plate 22 are connected to the upper clamping seat 211 through connecting rods 24. This design makes the entire device more stable during operation. The movable bars 1 23 between adjacent ladder plates 22 are connected by movable bars 25, which further enhances the integrity of the device.

[0020] The movable bar 1 23 and the movable bar 25 are connected by a connecting rod 24, and a bolt 26 is provided on the end face of the connecting rod 24. This design improves the durability of the device. A lower clamping seat 212 is provided below the upper clamping seat 211, and a movable arm 27 is provided on the lower clamping seat 212. A linkage arm 28 is provided at the end of the movable arm 27, which is connected to the intersection of the movable bar 1 23 and the movable bar 25.

[0021] The upper clamping seat 211 is provided with a tension spring 29, and the movable arm 27 is provided with a penetrating movable opening 271. The tail end of the tension spring 29 is connected to the movable opening 271, and this design helps to achieve adaptive adjustment of the device. The upper clamping seat 211 and the lower clamping seat 212 are assembled and connected with the fixing plate 1 through bolts 26 to ensure stability.

[0022] The movable arm 27 and the lower card seat 212 as well as the linkage arm 28 and the movable arm 27 are all movably connected by a pin shaft, and this design enables smooth movement during operation. The linkage arm 28 and the movable bar 1 23 and the movable bar 2 25 are also movably connected by a pin shaft, which further improves flexibility.

[0023] In summary, this solution has fully considered factors such as stability, flexibility and durability in its design, and can meet the needs of various application scenarios.

[0024] According to the above scheme, in this embodiment, by operating the stretched ladder plate 22, the movable bar 1 23 and the movable bar 25 are flipped, and the ladder plates 22 are stretched step by step, so that the multiple ladder plates 22 are fully unfolded. This process acts on the linkage arm 28 and the movable arm 27, causing the tension spring 29 to stretch and complete the unfolding action. When retracting, the ladder plate 22 only needs to be pushed upward to flip the movable bar 1 23 and the movable bar 25 in turn, so that the ladder plate 22 can be folded.

[0025] The working principle and use process of the utility model: After the various components of the solution are assembled in sequence, all the working steps can be completed according to the above implementation methods in sequence according to actual needs.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0029] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the present invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A boarding device with a retractable structure, characterized in that: The invention comprises a fixed plate (1), an upper clamping seat (211) is symmetrically mounted on the fixed plate (1), a plurality of ladder plates (22) are arranged between two upper clamping seats (211), the plurality of ladder plates (22) are distributed in a stepped manner, and a movable bar (23) is arranged on both sides of each ladder plate (22), the movable bars (23) on both sides of the ladder plate (22) at the top are connected to the upper clamping seat (211) through a connecting rod (24), and the movable bars (23) between the ladder plates (22) are connected through a movable bar (25).

2. A boarding device with a retractable structure according to claim 1, characterized in that: The movable bar 1 (23) and the movable bar 2 (25) are connected via a connecting rod (24), and a bolt (26) is provided on the end surface of the connecting rod (24).

3. The boarding device with a retractable structure according to claim 2, characterized in that: A lower card seat (212) is arranged below the upper card seat (211), a movable arm (27) is arranged on the lower card seat (212), and a linkage arm (28) is arranged at the end of the movable arm (27), and the linkage arm (28) is connected to the intersection of the movable bar 1 (23) and the movable bar 2 (25).

4. The boarding device with a retractable structure according to claim 3, characterized in that: The upper clamping seat (211) is provided with a tension spring (29), the movable arm (27) is provided with a movable opening (271), and the tail end of the tension spring (29) is connected to the movable opening (271).

5. The boarding device with a retractable structure according to claim 4, characterized in that: The upper clamping seat (211) and the lower clamping seat (212) are assembled and connected to the fixed plate (1) via bolts (26); the movable arm (27) and the lower clamping seat (212) are movably connected via a pin shaft; the linkage arm (28) and the movable arm (27) are movably connected via a pin shaft; and the linkage arm (28) and the movable bar 1 (23) and the movable bar 2 (25) are movably connected via a pin shaft.

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