Wharf lifting boarding ladder

Abstract

The utility model relates to the technical field of ship engineering, and provides a wharf lifting boarding ladder which comprises a connecting wheel, a boarding ladder body is installed at the top end of the connecting wheel, a limiting handle is installed on the outer side wall of the boarding ladder body and used for limiting the connecting wheel, and the top end of the boarding ladder body is fixedly connected with a second blocking frame. The transmission mechanism is arranged on the outer side wall of the boarding ladder body, the outer side wall of the boarding ladder body is fixedly connected with an external rotating shaft, and the outer side wall of the external rotating shaft is rotationally connected with a boarding gangway ladder; by adjusting the angle of the gangway ladder, the gangway ladder can better conform to ergonomics, the physical strength and time needed by people for getting on and off the ship are reduced, and the passing efficiency is improved. The inclination of the boarding ladder can be reduced through proper angle adjustment, the risk of slipping or falling down caused by the too large gradient is reduced, and a more stable and safer boarding and alighting environment is provided for a user.

Description

Technical Field

[0001] The utility model relates to the technical field of ship engineering, and particularly to a dock lifting boarding ladder. Background Art

[0002] A boarding ladder is a device specifically designed to assist personnel in safely boarding and alighting from ships at docks or shores. It usually consists of a ladder structure with adjustable height and angle, equipped with sturdy handrails and anti-slip pedals to ensure the safety of users during the boarding and alighting process. The boarding ladder can be adjusted according to the height of different ships and tidal changes to adapt to various operating environments. In modern port and dock facilities, the boarding ladder is an indispensable piece of equipment, providing a convenient and safe passage for crew members, loading and unloading workers, and visitors to easily enter and exit the ship.

[0003] With the development of modern ports and docks, the requirements for loading and unloading efficiency, personnel safety, and equipment adaptability are getting higher and higher. Especially at large crude oil terminals, the comprehensive tonnage of ships is huge, the safety risks are high, and the loading efficiency requirements are also high. Therefore, a boarding device that can be flexibly adjusted according to tidal changes, ship types, and dock conditions is needed to ensure the safety and efficiency of personnel boarding and alighting.

[0004] For this reason, those skilled in the art have proposed a dock lifting boarding ladder to solve the problems raised in the background art. Summary of the Invention

[0005] In order to solve the above technical problems, the utility model provides a dock lifting boarding ladder to solve the problems in the prior art that the tonnage of port ships is large and different angles of the lifting ladder are required to ensure the safety and efficiency of personnel boarding and alighting.

[0006] A dock lifting boarding ladder includes connecting wheels, and a boarding ladder main body is installed at the top of the connecting wheels. A limiting handle is installed on the outer side wall of the boarding ladder main body, and the limiting handle is used to limit the connecting wheels. A second retaining frame is fixedly connected to the top of the boarding ladder main body;

[0007] A transmission mechanism is arranged on the outer side wall of the boarding ladder main body.

[0008] Preferably, an external rotating shaft is fixedly connected to the outer side wall of the boarding ladder main body, a boarding gangway is rotatably connected to the outer side wall of the external rotating shaft, and a first retaining frame is fixedly connected to the top of the boarding gangway.

[0009] Preferably, the transmission mechanism is symmetrically installed on both sides of the boarding ladder main body. The transmission mechanism includes a fixed frame, which is fixedly connected to the outer side wall of the boarding ladder main body. A connecting shaft is rotatably connected to the inner side wall of the fixed frame. A rotating handle is fixedly connected to the outer side wall of the connecting shaft, and the included angle between the rotating handle and the connecting shaft is 90 degrees.

[0010] Preferably, the rotation of the rotating handle can drive the connecting shaft to rotate in the fixed frame. A first gear is fixedly connected to the outer side wall of the connecting shaft, and the rotation of the connecting shaft will drive the first gear to rotate.

[0011] Preferably, a second rotating shaft is rotatably connected to the inner side wall of the fixed frame, and a second gear is fixedly connected to the outer side wall of the second rotating shaft.

[0012] Preferably, the second gear is meshed with the first gear. The rotation of the first gear will drive the second rotating shaft to rotate through the second gear. An installation hole is provided on the outer side wall of the second rotating shaft, and a steel wire rope is installed in the installation hole on the outer side of the second rotating shaft.

[0013] Preferably, two gantry frames are inserted into the inner side wall of the boarding ladder main body. An external frame is fixedly connected to the outer side walls of the two gantry frames. A support frame is fixedly connected to the top of the external frame, and a limiting pulley is rotatably connected to the inner side wall of the support frame.

[0014] Preferably, two limiting handles are fixedly connected to both side walls at the top of the boarding gangway. The steel wire rope installed in the second rotating shaft is slidably connected in the limiting pulley, and the other end of the steel wire rope in the second rotating shaft is installed on the outer side of the limiting handle.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] 1. Improve the convenience of getting on and off the ship: By adjusting the angle of the gangway to make it more ergonomic, it reduces the physical strength and time required for people to get on and off the ship, and improves the passing efficiency.

[0017] 2. Enhance safety: Appropriate angle adjustment can reduce the inclination of the boarding ladder, and reduce the risk of slipping or falling caused by too large a slope, providing a more stable and safe getting on and off the ship environment for users.

[0018] 3. Adapt to various working environments: The present invention can flexibly adjust the angle according to the height of different ships, tidal changes and wharf conditions, so that the boarding ladder can adapt to various complex working environments, and improves the versatility and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0020] Figure 2 is a schematic structural view of the transmission mechanism in the present utility model; Figure 1 in the present utility model;

[0021] Figure 3 is a schematic structural view of the gantry in the present utility model; Figure 1 in the present utility model;

[0022] Figure 4 is a schematic side view structure in the present utility model. Figure 2 in the present utility model;

[0023] In the figure: 1, connecting wheel; 11, main body of boarding ladder; 12, external rotating shaft; 13, boarding gangway; 14, first retaining frame; 15, second retaining frame; 16, gantry; 2, fixing frame; 21, connecting shaft; 22, rotating handle; 23, first gear; 24, second rotating shaft; 25, second gear; 26, external frame; 27, support frame; 28, limiting pulley; 29, limiting handle. Specific embodiments

[0024] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] As shown in the attached Figure 1 to the attached Figure 4 shown:

[0026] Embodiment 1: The present utility model provides a dock lifting boarding ladder, including a connecting wheel 1, the top of the connecting wheel 1 is provided with a main body 11 of the boarding ladder, the outer side wall of the main body 11 of the boarding ladder is provided with a limiting handle 29, the limiting handle 29 is used to limit the connecting wheel 1, and the top of the main body 11 of the boarding ladder is fixedly connected with a second retaining frame 15;

[0027] Transmission mechanism, the transmission mechanism is arranged on the outer side wall of the boarding ladder main body 11. A connecting outer shaft 12 is fixedly connected to the outer side wall of the boarding ladder main body 11. A boarding gangway 13 is rotatably connected to the outer side wall of the connecting outer shaft 12. A first blocking frame 14 is fixedly connected to the top end of the boarding gangway 13. The transmission mechanisms are symmetrically installed on both sides of the boarding ladder main body 11. The transmission mechanism includes a fixed frame 2. The fixed frame 2 is fixedly connected to the outer side wall of the boarding ladder main body 11. A connecting shaft 21 is rotatably connected to the inner side wall of the fixed frame 2. A rotating handle 22 is fixedly connected to the outer side wall of the connecting shaft 21. The angle between the rotating handle 22 and the connecting shaft 21 is 90 degrees. The rotation of the rotating handle 22 can drive the connecting shaft 21 to rotate within the fixed frame 2. A first gear 23 is fixedly connected to the outer side wall of the connecting shaft 21. The rotation of the connecting shaft 21 will drive the first gear 23 to rotate.

[0028] Specifically, the rotation of the first gear 23 can conveniently drive the second gear 25 to rotate, and the second gear 25 can conveniently drive the wire rope to be wound up.

[0029] Embodiment 2: A second rotating shaft 24 is rotatably connected to the inner side wall of the fixed frame 2. A second gear 25 is fixedly connected to the outer side wall of the second rotating shaft 24. The second gear 25 is meshed and connected with the first gear 23. The rotation of the first gear 23 will drive the second rotating shaft 24 to rotate through the second gear 25. An installation hole is provided on the outer side wall of the second rotating shaft 24. A wire rope is installed in the installation hole on the outer side of the second rotating shaft 24. Two gantry frames 16 are inserted into the inner side wall of the boarding ladder main body 11. An external frame 26 is fixedly connected to the outer side wall of the two gantry frames 16. A support frame 27 is fixedly connected to the top end of the external frame 26. A limiting pulley 28 is rotatably connected to the inner side wall of the support frame 27. Two limiting handles 29 are fixedly connected to the two side walls at the top end of the boarding gangway 13. The wire rope installed in the second rotating shaft 24 is slidably connected in the limiting pulley 28. The other end of the wire rope in the second rotating shaft 24 is installed on the outer side of the limiting handle 29.

[0030] Specifically, through the arrangement of the limiting pulley 28, the wire rope can be limited, and the wire rope is limited to the gantry frame 16, which is convenient for pulling the distal boarding gangway 13.

[0031] As can be seen from the above, when this device needs to be adjusted, first use your hand to rotate the rotating handle 22, so that the rotating handle 22 drives the connecting shaft 21 to rotate. Then the connecting shaft 21 will drive the first gear 23 to rotate. The rotation of the first gear 23 will drive the second rotating shaft 24 to rotate through the second gear 25, so that the second rotating shaft 24 pulls and relaxes the steel wire rope. The steel wire rope adjusts the pull on the limit handle 29 through the rotation of the limit pulley 28, so that the limit handle 29 rotates around the external rotating shaft 12 with the boarding ladder 13 as the axis.

[0032] All standard parts used in the present invention can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below", and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0036] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples

[0037] In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other

[0038] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model

Claims

1. A dock lifting boarding ladder, characterized in that: It includes a connecting wheel (1), a boarding ladder main body (11) is installed at the top of the connecting wheel (1), a limiting handle (29) is installed on the outer side wall of the boarding ladder main body (11), the limiting handle (29) is used to limit the connecting wheel (1), and a second retaining frame (15) is fixedly connected to the top of the boarding ladder main body (11); A transmission mechanism, the transmission mechanism is arranged on the outer side wall of the boarding ladder main body (11); the transmission mechanism is symmetrically installed on both sides of the boarding ladder main body (11) in two, the transmission mechanism includes a fixed frame (2), the fixed frame (2) is fixedly connected to the outer side wall of the boarding ladder main body (11), a connecting shaft (21) is rotatably connected to the inner side wall of the fixed frame (2), a rotating handle (22) is fixedly connected to the outer side wall of the connecting shaft (21), and the included angle between the rotating handle (22) and the connecting shaft (21) is ninety degrees.

2. The marine lift boarding ladder according to claim 1, wherein: An external rotating shaft (12) is fixedly connected to the outer side wall of the boarding ladder main body (11), a boarding gangway (13) is rotatably connected to the outer side wall of the external rotating shaft (12), and a first retaining frame (14) is fixedly connected to the top of the boarding gangway (13).

3. The dock lift boarding ladder according to claim 2, characterized in that: The rotation of the rotating handle (22) can drive the connecting shaft (21) to rotate in the fixed frame (2), a first gear (23) is fixedly connected to the outer side wall of the connecting shaft (21), and the rotation of the connecting shaft (21) will drive the first gear (23) to rotate.

4. The dock lift boarding ladder according to claim 3, wherein: A second rotating shaft (24) is rotatably connected to the inner side wall of the fixed frame (2), and a second gear (25) is fixedly connected to the outer side wall of the second rotating shaft (24).

5. The dock lifting boarding ladder according to claim 4, wherein: The second gear (25) is meshed with the first gear (23), the rotation of the first gear (23) will drive the second rotating shaft (24) to rotate through the second gear (25), an installation hole is opened on the outer side wall of the second rotating shaft (24), and a steel wire rope is installed in the installation hole on the outer side of the second rotating shaft (24).

6. The marine lift boarding ladder according to claim 5, wherein: Two gantry frames (16) are inserted into the inner side wall of the boarding ladder main body (11), an external frame (26) is fixedly connected to the outer side wall of the two gantry frames (16), a support frame (27) is fixedly connected to the top of the external frame (26), and a limiting pulley (28) is rotatably connected to the inner side wall of the support frame (27).

7. The dock lifting boarding ladder according to claim 4, characterized in that: Two limiting handles (29) are fixedly connected to the two side walls at the top of the boarding gangway (13), the steel wire rope installed in the second rotating shaft (24) is slidably connected in the limiting pulley (28), and the other end of the steel wire rope in the second rotating shaft (24) is installed on the outer side of the limiting handle (29).

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