Boarding ladder

Abstract

The utility model provides a boarding ladder which comprises a plurality of boarding modules. The multiple boarding modules can be stacked and arranged in the vertical direction. Every two adjacent boarding modules in the vertical direction are detachably connected. The boarding module comprises a rectangular frame, a passage footpath and a plurality of guide plates; the rectangular frame extends in the vertical direction. A passing space extending in the vertical direction is arranged in the rectangular frame. The passing footpath is arranged in the passing space of the rectangular frame so that workers can vertically move in the rectangular frame. The multiple guide plates are arranged on the peripheral side of the upper end of the rectangular frame. A guide slope is arranged at the upper end of the guide plate. When a large ship is carried, built or launched, the multiple boarding modules are hoisted to a work site. When the boarding ladder is assembled, one boarding module is hoisted to the upper side of the other boarding module, and when the two boarding modules are close to each other, the guide plate of the boarding module on the lower side guides the boarding module on the upper side to be aligned and spliced, so that the assembly efficiency of the boarding ladder is improved, and potential safety hazards occurring when the boarding ladder is assembled can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ship production, in particular to a boarding ladder. Background Art

[0002] With the development of global trade, more and more goods are transported by water, thus realizing the circulation of goods and economic development. Water transportation mainly refers to the transportation of goods through waterways using ships as carriers, which has large transportation volumes and low transportation costs.

[0003] As the demand for water transport increases, the size of ships also increases. When large ships are being built and launched, temporary boarding ladders are required to accommodate the large number of construction workers boarding the large ships.

[0004] However, the current boarding ladder is temporarily assembled on site by construction workers using multiple vertical beams, connecting beams and walkways. The assembly process is complicated and tedious, and is prone to safety hazards. Utility Model Content

[0005] The purpose of this application is to provide a boarding ladder that is easy to assemble and highly safe.

[0006] To solve the above technical problems, this application adopts the following technical solutions:

[0007] According to one aspect of the present application, the present application provides a boarding ladder, which includes: multiple boarding modules; multiple boarding modules can be stacked and arranged vertically; two vertically adjacent boarding modules are detachably connected; the boarding module includes: a rectangular frame, a passage way and multiple guide plates; the rectangular frame extends vertically; a passage space extending vertically is provided in the rectangular frame; the passage way is provided in the passage space of the rectangular frame for vertical movement of staff in the rectangular frame; multiple guide plates are respectively provided on the peripheral sides of the upper end of the rectangular frame; the upper end of the guide plate is provided with a guide slope, and in the direction from top to bottom, the guide slope extends toward the center of the rectangular frame, so as to guide the alignment and splicing of the two boarding modules.

[0008] In some embodiments, the plurality of guide plates are respectively disposed on the outer peripheral walls of the corners of the rectangular frame.

[0009] In some embodiments, the boarding module also includes a plurality of horizontally extending connecting plates, which are respectively fixedly connected to the corners of the two ends of the rectangular frame; in the horizontal projection plane, the projection of the connecting plate extends outward beyond the projection of the rectangular frame; the connecting plates of two adjacent boarding modules are detachably connected to each other; the guide plate is provided with a first connecting surface and a second connecting surface on the side of the guide slope facing the center of the rectangular frame, the first connecting surface extends vertically, the upper end of the first connecting surface is connected to the guide slope, and the lower end of the first connecting surface is connected to the second connecting surface, and the first connecting surface can fit the peripheral side wall of the connecting plate; the second connecting surface extends toward the center of the rectangular frame, and the second connecting surface can fit the lower end surface of the connecting plate.

[0010] In some embodiments, a vertical height dimension of the first connecting surface is greater than or equal to a vertical height dimension of the connecting plate.

[0011] In some embodiments, the boarding module also includes a plurality of horizontally extending connecting plates, which are respectively fixedly connected to the corners at both ends of the rectangular frame; the corners at both ends of the rectangular frame are respectively formed with a supporting portion along a vertical protrusion, and the supporting portion extends away from the center of the rectangular frame; the connecting plate is arranged on the side of the supporting portion away from the center of the rectangular frame; in the horizontal projection plane, the projection of the supporting portion is located within the enclosed range of the projection of the connecting plate; a plurality of connecting holes are opened on the connecting plate, and the plurality of connecting holes are spaced apart on the outside of the supporting portion.

[0012] In some embodiments, a lifting hole is provided at the upper end of the guide plate.

[0013] In some embodiments, the passage walkway includes multiple turning platforms and multiple walkway structures, and the multiple turning platforms are arranged in the passage space along vertical intervals, and any two adjacent turning platforms are respectively arranged on opposite sides of the rectangular frame; at least one walkway structure is arranged between any two adjacent turning platforms to connect the two turning platforms.

[0014] In some embodiments, two walkway structures are provided between any two adjacent turning platforms.

[0015] In some embodiments, a stair section is formed between any two adjacent turning platforms, and at least two stair sections are arranged in the rectangular frame; the walkway structure in one stair section is the first walkway, and the walkway structure in the other stair section is the second walkway; the two ends of the first walkways are respectively connected to the middle of the turning platform, and the two second walkways are respectively arranged on the outside of the two first walkways, and the two ends of the second walkways are respectively connected to the outside of the turning platform.

[0016] In some embodiments, the boarding ladder also includes a connecting turntable, which includes a base plate, a rotating shaft, a first rotating plate, a second rotating plate and a rotating body, wherein the base plate is connected to the lower end outer peripheral wall of the lowermost boarding module; the rotating shaft extends vertically, and the lower end of the rotating shaft is arranged in the middle of the base plate; the first rotating plate is arranged on the base plate, and the first rotating plate and the second rotating plate are mounted on the rotating shaft, and the second rotating plate can rotate around the rotating shaft relative to the first rotating plate; the rotating body is fixedly connected to the upper surface of the second rotating plate and is rotatably mounted on the rotating shaft.

[0017] It can be seen from the above technical solution that this application has at least the following advantages and positive effects:

[0018] In this application, when a large ship is being built or launched, multiple boarding modules are hoisted onto a work site. One boarding module is then hoisted onto the upper side of another boarding module. When the two boarding modules are brought close together, the guide plate of the lower boarding module guides the alignment and splicing of the upper boarding module, thereby improving the assembly efficiency of the boarding ladder and reducing safety hazards during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model boarding ladder.

[0020] Figure 2 yes Figure 1 A structural schematic diagram of another perspective of the structure shown in .

[0021] Figure 3 yes Figure 2 A magnified view of the structure at point A.

[0022] Figure 4 The utility model is a structural schematic diagram of a boarding ladder after a connecting turntable is added.

[0023] Figure 5 yes Figure 4 A magnified view of the structure at point B.

[0024] Figure 6 It is a structural diagram of the boarding module of the utility model.

[0025] The reference numerals in the accompanying drawings are as follows: 10, boarding module; 100, rectangular frame; 110, passage space; 120, vertical beam; 121, supporting part; 130, connecting beam; 140, reinforcing beam; 210, connecting plate; 211, connecting hole; 300, passage walkway; 310, turning platform; 320, walkway structure; 321, first walkway; 322, second walkway; 330, stair section; 340, guardrail; 400, guide plate; 410, guide slope; 420, first connecting surface; 430, second connecting surface; 440, lifting hole; 50, stepping step; 60, connecting turntable; 710, base plate; 720, rotating shaft; 730, first rotating plate; 740, second rotating plate; 750, rotating body. DETAILED DESCRIPTION

[0026] Typical embodiments that embody the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various variations in different embodiments without departing from the scope of the present application, and the descriptions and illustrations therein are essentially for illustrative purposes and are not intended to limit the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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 application 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 cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] At present, as the size of ships becomes larger and larger, boarding ladders need to be set up during the construction and launching of large ships to meet the needs of a large number of construction personnel boarding large ships.

[0029] Figure 1 It is a structural schematic diagram of the utility model boarding ladder.

[0030] See Figure 1 For ease of understanding and description, the state of the boarding ladder when in use is used as a reference, and the vertical direction of the boarding ladder is used as the vertical direction below.

[0031] Figure 2 yes Figure 1 A structural schematic diagram of another perspective of the structure shown in .

[0032] See Figure 1 and Figure 2 The present application provides a boarding ladder comprising a plurality of boarding modules 10. The plurality of boarding modules 10 can be stacked vertically. Vertically adjacent boarding modules 10 are detachably connected to facilitate rapid assembly and disassembly of the boarding ladder, improving work efficiency. Furthermore, the height of the boarding ladder can be adjusted according to the size of the vessel being constructed, thereby increasing its applicability and scope of use.

[0033] Figure 3 yes Figure 2 A magnified view of the structure at point A.

[0034] See Figures 1 to 3 The present application provides a boarding ladder, which includes a plurality of boarding modules 10 that can be spliced ​​vertically. The boarding module 10 may include: a rectangular frame 100, a passageway 300 and a plurality of guide plates 400. The rectangular frame 100 can extend vertically. A passage space 110 extending vertically is provided in the rectangular frame 100. The passageway 300 can be provided in the passage space 110 of the rectangular frame 100 to enable vertical movement of staff in the rectangular frame 100. A plurality of guide plates 400 can be respectively provided on the peripheral sides of the upper end of the rectangular frame 100. A guide slope 410 is provided at the upper end of the guide plate 400, and in the direction from top to bottom, the guide slope 410 extends toward the center of the rectangular frame 100 to guide the alignment and splicing of the two boarding modules 10.

[0035] When a large ship is being built, one boarding module 10 is hoisted onto the upper side of another boarding module 10. When the upper boarding module 10 and the lower boarding module 10 are close to each other, the lower end of the upper boarding module 10 can abut against the guiding slope 410 of the guide plate 400 of the lower boarding module 10. Under the action of the guiding slope 410, the lower end of the upper boarding module 10 is aligned and abuts against the upper end of the lower boarding module 10, thereby facilitating the rapid splicing of the upper boarding module 10 and the lower boarding module 10, improving the assembly efficiency of the boarding ladder, and reducing safety hazards during assembly of the boarding ladder.

[0036] Figure 4 The utility model is a structural schematic diagram of a boarding ladder after a connecting turntable is added.

[0037] See Figures 1 to 4In this embodiment, the boarding module 10 may include a rectangular frame 100. The rectangular frame 100 is used to connect with the passage 300 to support the passage 300 and protect the construction workers passing through the passage 300.

[0038] The rectangular frame 100 may include a plurality of vertical beams 120 and a plurality of connecting beams 130. The plurality of vertical beams 120 extend vertically and are arranged horizontally in a rectangular pattern. The connecting beams 130 extend horizontally. The plurality of connecting beams 130 can connect two adjacent vertical beams 120 to form an integrated structure, wherein a vertically extending passageway 110 is formed within the integrated structure. Furthermore, the integrated structure formed by the plurality of vertical beams 120 and the plurality of connecting beams 130 facilitates the movement, transportation, and assembly of the rectangular frame 100, thereby improving the assembly efficiency of the boarding ladder.

[0039] In some embodiments, a plurality of connecting beams 130 are provided between any two adjacent vertical beams 120 . The plurality of connecting beams 130 between any two adjacent vertical beams 120 are arranged at intervals along the vertical direction to improve the connection strength and bearing capacity of the two vertical beams 120 .

[0040] In some embodiments, a plurality of connecting beams 130 are connected to the side walls of a vertical beam 120 facing two adjacent vertical beams 120. The connecting beams 130 on both sides of the vertical beam 120 are arranged opposite each other, and the vertical beam 120 and the multiple connecting beams 130 at the same vertical height can enclose a closed loop structure to improve the structural strength and load-bearing capacity of the rectangular frame 100.

[0041] In some embodiments, the vertical beams 120 and the connecting beams 130 may be I-beams, Figure 5 yes Figure 4 A magnified view of the structure at point B. Figure 6 It is a structural diagram of the boarding module of the utility model.

[0042] See Figures 1 to 6 In this embodiment, the rectangular frame 100 may include four vertical beams 120 distributed in a rectangular shape. Four connecting beams 130 are provided between any two adjacent vertical beams 120. The four connecting beams 130 may be arranged at intervals along the vertical direction so that the rectangular frame 100 has a rectangular parallelepiped shape. The rectangular parallelepiped shape of the rectangular frame 100 can not only improve the carrying capacity of the rectangular frame 100, but also prevent the boarding module 10 from shaking during transportation, thereby improving the safety and reliability of the boarding module 10 during transportation; and it also facilitates the placement and storage of the boarding module 10, thereby improving the space utilization rate when the boarding module 10 is placed.

[0043] In some embodiments, multiple connecting beams 130 of the same vertical height may be enclosed to form a square or a rectangle to improve the structural strength of the rectangular frame 100 .

[0044] See Figures 1 to 6 In this embodiment, the corners of both ends of the rectangular frame 100 may each be formed with a vertically protruding abutment portion 121. The abutment portion 121 extends away from the center of the rectangular frame 100. The abutment portion 121 is used to abut the rectangular frame 100 of the adjacent boarding module 10, thereby reserving working space for the assembly and splicing of the two adjacent rectangular frames 100, facilitating the construction of the relevant connecting structure between the two rectangular frames 100, and improving the splicing efficiency of the two rectangular frames 100.

[0045] In some embodiments, the vertical beam 120 extends vertically beyond the outermost connecting beam 130. The portion of the vertical beam 120 beyond the outermost connecting beam 130 is the abutment 121, which ensures the integrity of the vertical beam 120 and the abutment 121, thereby improving the structural strength and load-bearing capacity of the rectangular frame 100.

[0046] See Figure 1 、 Figure 2 、 Figure 4 and Figure 6 In this embodiment, the rectangular frame 100 may further include a plurality of reinforcing beams 140. The plurality of reinforcing beams 140 may be respectively disposed between any two adjacent vertical beams 120 and connected to any two adjacent connecting beams 130 to improve the structural strength and load-bearing capacity of the rectangular frame 100 and prevent safety failures of the boarding module 10.

[0047] In other embodiments, two reinforcing beams 140 may be provided between two adjacent connecting beams 130. One end of each reinforcing beam 140 is connected to the middle portion of the upper connecting beam 130, and the other end of each reinforcing beam 140 is connected to both ends of the lower adjacent connecting beam 130. Thus, the two reinforcing beams 140 and the lower connecting beam 130 can enclose a triangular structure, thereby further improving the structural strength and load-bearing capacity of the rectangular frame 100.

[0048] In other embodiments, one end of the two reinforcing beams 140 is respectively connected to the middle part of the upper connecting beam 130, and the other ends of the two reinforcing beams 140 are respectively connected to the two adjacent vertical beams 120, so that the two reinforcing beams 140, parts of the two adjacent vertical beams 120 and the lower connecting beam 130 can be enclosed to form a triangular structure.

[0049] In other embodiments, a reinforcement beam 140 may be provided between two adjacent connecting beams 130. The reinforcement beam 140 extends vertically. The two ends of the reinforcement beam 140 connect the middle portions of the two adjacent connecting beams 130, respectively, to improve the structural strength and load-bearing capacity of the rectangular frame 100.

[0050] In other embodiments, a plurality of reinforcing beams 140 are provided between two adjacent vertical connecting beams 130 . The plurality of reinforcing beams 140 may be cross-linked and / or arranged at intervals to improve the structural strength and bearing capacity of the rectangular frame 100 .

[0051] See Figures 1 to 6 In this embodiment, the boarding module 10 may further include a plurality of connecting plates 210 extending horizontally. The plurality of connecting plates 210 are respectively fixedly connected to the corners at both ends of the rectangular frame 100. In the horizontal projection plane, the projection of the connecting plate 210 extends outward beyond the projection of the rectangular frame 100. The connecting plates 210 of two adjacent boarding modules 10 are detachably connected to each other. The connecting plate 210 can increase the contact area of ​​the two boarding modules 10, making it easier for the two boarding modules 10 to be aligned and spliced. In addition, the provision of the connecting plate 210 can facilitate the staff to splice and assemble the two connecting plates 210, and can improve the connection strength of the two connecting plates 210, thereby improving the structural strength of the boarding ladder formed by splicing multiple boarding modules 10.

[0052] In some embodiments, the connecting plate 210 is disposed on a side of the abutting portion 121 away from the center of the rectangular frame 100. In a horizontal projection plane, the projection of the abutting portion 121 is within the enclosed range of the projection of the connecting plate 210, thereby facilitating connection between the connecting plates 210 at the facing ends of two adjacent boarding modules 10.

[0053] In some embodiments, the connecting plate 210 may be provided with a plurality of connecting holes 211, which are spaced apart on the outside of the supporting portion 121. In other embodiments, two adjacent connecting plates 210 of two embarkation modules 10 are connected by bolts, and the bolts are passed through the adjacent connecting holes 211 of the two embarkation modules 10.

[0054] See Figures 1 to 4 and Figure 6 In this embodiment, the boarding module 10 may include a plurality of guide plates 400. The plurality of guide plates 400 are disposed on the rectangular frame 100. A guide slope 410 is disposed on the upper end of the guide plate 400 on the side facing the rectangular frame 100. From top to bottom, the guide slope 410 extends toward the center of the rectangular frame 100. The guide slope 410 on the guide plate 400 is used to guide the vertical splicing of two boarding modules 10, thereby improving the alignment accuracy and splicing efficiency of the boarding modules 10, thereby improving the assembly efficiency of the boarding ladder and facilitating the use of the boarding ladder.

[0055] In some embodiments, multiple guide plates 400 can be respectively disposed on the peripheral walls of the corners of the rectangular frame 100 to enhance the connection strength between the guide plates 400 and the rectangular frame 100. The multiple guide plates 400 can abut against the outer periphery of the upper boarding module 10 to facilitate the splicing and assembly of the two boarding modules 10.

[0056] See Figures 1 to 4 and Figure 6 In this embodiment, multiple guide plates 400 are arranged on the two side walls of the vertical beam 120 away from the passage space 110, so that the force on the guide plate 400 can be directly transmitted to the vertical beam 120, and then directly transmitted to the multiple connecting beams 130 and the multiple reinforcing beams 140 through the vertical beam 120, thereby improving the connection strength between the guide plate 400 and the rectangular frame 100.

[0057] See Figures 1 to 4 、 Figure 6 In this embodiment, multiple guide plates 400 extend vertically so as to be able to abut against the lower side walls and peripheral side walls of adjacent connecting plates 210, thereby improving the connection strength between the guide plates 400, adjacent vertical beams 120 and connecting plates 210, and improving the structural strength and bearing capacity of the boarding module 10.

[0058] In other embodiments, there may be eight guide plates 400. The eight guide plates 400 are respectively disposed on two adjacent side walls of the four vertical beams 120 facing away from the passage space 110, so as to guide the four connecting plates 210 of the upper rectangular frame 100 to align with the four connecting plates 210 of the lower rectangular frame 100, thereby improving the alignment and assembly efficiency of the two boarding modules 10.

[0059] See Figures 1 to 4 and Figure 6 In this embodiment, the guide plate 400 may further include a first connecting surface 420 and a second connecting surface 430 on the side of the guide slope 410 facing the center of the rectangular frame 100. The first connecting surface 420 extends vertically, with the upper end of the first connecting surface 420 connected to the guide slope 410 and the lower end of the first connecting surface 420 connected to the second connecting surface 430. The first connecting surface 420 can be in contact with the peripheral sidewall of the connecting plate 210. The second connecting surface 430 extends toward the center of the rectangular frame 100 and can be in contact with the lower end surface of the connecting plate 210.

[0060] When the guide plate 400 is connected to the rectangular frame 100, the first connecting surface 420 of the guide plate 400 is tightly connected to the peripheral side wall of the connecting plate 210, and the second connecting surface 430 is tightly connected to the lower end surface of the connecting plate 210, thereby improving the connection strength between the guide plate 400, the connecting plate 210 and the rectangular frame 100, thereby improving the structural strength of the boarding module 10 and facilitating the lifting and transportation of the boarding module 10.

[0061] In some embodiments, the vertical height dimension of the first connecting surface 420 is greater than or equal to the vertical height dimension of the connecting plate 210, so that when the two boarding modules 10 are spliced, the first connecting surface 420 can support and limit the connecting plate 210 at the lower end of the upper boarding module 10, thereby facilitating the alignment of the two vertically adjacent connecting plates 210 of the two boarding modules 10, and the connecting holes 211 on the two adjacent connecting plates 210 can be quickly aligned and connected, effectively improving the connection efficiency of the two connecting plates 210; and it can also improve the overall structural strength of the boarding ladder.

[0062] In other embodiments, the vertical height dimension of the first connecting surface 420 is greater than or equal to the vertical height dimension of the two connecting plates 210, so that the first connecting surface 420 can completely support the peripheral side wall of the lower end connecting plate 210 of the upper boarding module 10 to improve the limiting strength of the two boarding modules 10.

[0063] In other embodiments, the first connecting surface 420 and the guiding inclined surface 410 transition into an arc.

[0064] See Figures 1 to 4 、 Figure 6 In this embodiment, the upper end of the guide plate 400 may further be provided with a hoisting hole 440. Workers can hoist the mobile boarding module 10 through the hoisting holes 440 on the guide plate 400, thereby improving the mobility of the boarding module 10 and facilitating the assembly, placement, and storage of the boarding module 10.

[0065] See Figure 1 、 Figure 2 、 Figure 4 and Figure 6 In this embodiment, the passageway 300 may include a plurality of turning platforms 310 and a plurality of walkway structures 320. The plurality of turning platforms 310 are vertically spaced apart within the passageway 110, with any two adjacent turning platforms 310 disposed on opposite sides of the rectangular frame 100. At least one walkway structure 320 is disposed between any two adjacent turning platforms 310 to connect the two turning platforms 310.

[0066] Construction workers can enter the walkway 300 through the turning platform 310, and then walk on the walkway structure 320 and the turning platform 310 in turn, so that the construction workers can move between the upper end and the lower end of the boarding module 10 through the turning platform 310 and the walkway structure 320, thereby improving the movement efficiency of the construction workers.

[0067] In addition, the walking path 300 extended by turning the turning platform 310 can facilitate the construction workers to walk, protect the construction workers' walking safety, and avoid the problem of construction workers stepping on the wrong place and falling.

[0068] See Figure 1 、 Figure 2 、 Figure 4 and Figure 6 In this embodiment, two walkway structures 320 are provided between any two adjacent turning platforms 310, so that construction workers can move from the lower end of the boarding module 10 to the upper end of the boarding module 10 through one walkway structure 320, and can also move from the upper end of the boarding module 10 to the lower end of the boarding module 10 through another walkway structure 320, thereby realizing two-way passage of construction workers, improving the commuting efficiency of construction workers, and avoiding safety hazards caused by construction workers pushing each other.

[0069] See Figure 1 、 Figure 2 、 Figure 4 and Figure 6 In this embodiment, a stair segment 330 can be formed between any two adjacent turning platforms 310. The rectangular frame 100 can be provided with one stair segment 330, two stair segments 330, three stair segments 330, four stair segments 330, or five stair segments 330, so that multiple boarding modules 10 can be connected to form boarding ladders of various heights to accommodate the construction of various ships.

[0070] In some embodiments, at least two stair sections 330 are provided in the rectangular frame 100 , thereby facilitating the placement and storage of the boarding modules 10 while ensuring that multiple boarding modules 10 can be spliced ​​and adjusted in height.

[0071] See Figure 1 、 Figure 2 、 Figure 4 and Figure 6 In this embodiment, in terms of vertical height, the multiple turning platforms 310 and the multiple connecting beams 130 are located at the same horizontal height, thereby further improving the structural strength and bearing capacity of the boarding module 10.

[0072] See Figure 1 、 Figure 2 、 Figure 4 and Figure 6 In this embodiment, at least two stair sections 330 may be provided in the rectangular frame 100. The walkway structure 320 in one stair section 330 is a first walkway 321, and the walkway structure 320 in another adjacent stair section 330 is a second walkway 322. The two ends of the two first walkways 321 are respectively connected to the middle of the turning platform 310, and the two second walkways 322 are respectively provided on the outside of the two first walkways 321, and the two ends of the second walkways 322 are respectively connected to the outside of the turning platform 310. The arrangement of the first walkway 321 and the second walkway 322 enables the center of gravity of the boarding module 10 to be located at the center of the boarding module 10, thereby ensuring the overall balance of the boarding module 10 and avoiding the risk of shaking of the boarding ladder due to unbalanced center of gravity.

[0073] In some embodiments, only one stair section 330 may be provided in the rectangular frame 100 , and two first steps 321 or two second steps 322 may be provided in the stair section.

[0074] See Figure 1 、 Figure 2 、 Figure 4 and Figure 6 In this embodiment, the walkway 300 may further include guardrails 340. The guardrails 340 are provided on both sides of the width direction of the walkway structure 320 and extend along the extension direction of the walkway structure 320 to assist construction workers in passing and avoid the risk of construction workers falling.

[0075] In the same boarding module 10, when there are more than three turning platforms 310 in the boarding module 10, the guardrail 340 can also be set on the turning platform 310 between the top turning platform 310 and the bottom turning platform 310, so as to protect the construction personnel from turning and moving while avoiding the problem of mutual interference of the guardrails 340 when the two boarding modules 10 are spliced.

[0076] See Figure 6 In this embodiment, the boarding ladder may include at least one boarding module 10.

[0077] In the present embodiment, the boarding ladder can be placed on the work site to assist construction personnel in getting on and off the ship. In certain embodiments, the boarding ladder can also be connected to the outside of the ship to assist construction personnel in moving from the upper end of the ship to the middle or bottom of the ship.

[0078] See Figure 4 and Figure 5 In this embodiment, the boarding ladder may further include a connecting turntable 60. The connecting turntable 60 may include a base plate 710, a rotating shaft 720, a first rotating plate 730, a second rotating plate 740 and a rotating body 750. The base plate 710 is connected to the lower end outer peripheral wall of the lowermost boarding module 10. The base plate 710 extends in the horizontal direction. The rotating shaft 720 extends in the vertical direction, and the lower end of the rotating shaft 720 is arranged in the middle of the base plate 710. The first rotating plate 730 is arranged on the base plate 710. The first rotating plate 730 and the second rotating plate 740 are mounted on the rotating shaft 720, and the second rotating plate 740 can rotate around the rotating shaft 720 relative to the first rotating plate 730. The rotating body 750 is fixedly connected to the upper surface of the second rotating plate 740 and is rotatably mounted on the rotating shaft 720.

[0079] When the boarding ladder is connected to the outer periphery of the ship, the connecting turntable 60 is connected to the lower end of the boarding module 10. The connecting turntable 60 is connected to a connecting platform (not shown) on the working ground, thereby offsetting the horizontal floating difference of the ship and ensuring the reliability and safety of the boarding ladder.

[0080] In some embodiments, the rotating body 750 is hinged to the connecting platform so that the rotating platform can rotate around an axis extending in the horizontal direction, thereby offsetting the floating difference of the ship in the vertical direction and ensuring the reliability and safety of the boarding ladder.

[0081] In this embodiment, the boarding ladder is formed by vertically splicing multiple boarding modules 10, and the height spacing between the adjacent turning platforms 310 of two adjacent boarding modules 10 is less than or equal to 54 cm to avoid the turning platform 310 at the joint of the two boarding modules 10 being too high and affecting the movement efficiency of the construction personnel.

[0082] See Figure 2 and Figure 6 In this embodiment, the boarding ladder may also include steps 50. These steps 50 are detachably connected to the bottom turning platform 310 of the lowest boarding module 10, allowing construction workers to access the turning platform 310 via the steps 50. This improves their commuting efficiency and ensures their safety. Furthermore, after the boarding ladder is used, the steps 50 can be removed and separated from the turning platform 310, thereby preserving their ability to be reassembled and used again without affecting the subsequent assembly of the boarding module 10.

[0083] See Figures 1 to 6 The present invention provides a boarding ladder. When a large ship needs to be constructed, multiple boarding modules 10 are transported to the work site. An external crane is then connected to the inner wall of the hoisting holes 440 on the guide plates 400 of the boarding modules 10. First, one boarding module 10 is hoisted to the side of the large ship, aligning it vertically. Then, the guide plate 400 of another boarding module 10 is connected to the crane, allowing the other boarding module 10 to be hoisted above the first boarding module 10.

[0084] The guiding slopes 410 of the multiple guide plates 400 of the lower boarding module 10 guide the alignment of the two boarding modules 10, thereby improving the alignment efficiency of the two boarding modules 10. Afterwards, the staff bolts the connecting plates 210 of the two boarding modules 10 together, thereby achieving rapid splicing of the two boarding modules 10, reducing the number of steps for the staff, improving the assembly efficiency of the boarding ladder, and enhancing the safety of the staff.

[0085] After multiple boarding modules 10 are spliced ​​together to form a boarding ladder, a platform step 50 is connected to the lowest boarding ladder, so that construction workers can enter the passage 300 through the platform step 50 and can move vertically through the two-way walkway structure 320, thereby improving the efficient passage of construction workers.

[0086] Although the present application has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present application can be embodied in various forms without departing from the spirit or essence of the utility model, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A boarding ladder, characterized in that: include: A plurality of embarkation modules can be stacked and arranged vertically; two vertically adjacent embarkation modules are detachably connected; the embarkation modules include: A rectangular frame extending vertically; a passage space extending vertically is provided in the rectangular frame; A passageway is provided in the passage space of the rectangular frame for allowing workers to move vertically in the rectangular frame; A plurality of guide plates are respectively arranged on the peripheral sides of the upper end of the rectangular frame; the upper end of the guide plate is provided with a guide slope, and in the direction from top to bottom, the guide slope extends toward the center of the rectangular frame to guide the alignment and splicing of the two boarding modules.

2. The boarding ladder according to claim 1, characterized in that The plurality of guide plates are respectively arranged on the outer peripheral walls of the corners of the rectangular frame.

3. The boarding ladder according to claim 2, characterized in that: The boarding module further includes a plurality of horizontally extending connecting plates, each of which is fixedly connected to the corners of both ends of the rectangular frame; in a horizontal projection plane, the projection of the connecting plates extends outward beyond the projection of the rectangular frame; the connecting plates of two adjacent boarding modules are detachably connected to each other; The guide plate is provided with a first connecting surface and a second connecting surface on the side of the guide slope facing the center of the rectangular frame. The first connecting surface extends vertically, the upper end of the first connecting surface is connected to the guide slope, and the lower end of the first connecting surface is connected to the second connecting surface. The first connecting surface can fit the peripheral side wall of the connecting plate; the second connecting surface extends toward the center of the rectangular frame, and the second connecting surface can fit the lower end surface of the connecting plate.

4. The boarding ladder according to claim 3, characterized in that: The vertical height dimension of the first connecting surface is greater than or equal to the vertical height dimension of the connecting plate.

5. The boarding ladder according to claim 1, characterized in that: The boarding module further includes a plurality of horizontally extending connecting plates, each of which is fixedly connected to the corners at both ends of the rectangular frame; Corners at both ends of the rectangular frame are respectively provided with abutment portions extending vertically, and the abutment portions extend away from the center of the rectangular frame; The connecting plate is arranged on the side of the supporting portion away from the center of the rectangular frame; in the horizontal projection plane, the projection of the supporting portion is located within the enclosed range of the projection of the connecting plate; a plurality of connecting holes are opened on the connecting plate, and the plurality of connecting holes are spaced apart on the outside of the supporting portion.

6. The boarding ladder according to claim 1, characterized in that A hoisting hole is provided at the upper end of the guide plate.

7. The boarding ladder according to claim 1, characterized in that The passage walkway includes multiple turning platforms and multiple walkway structures. The multiple turning platforms are arranged in the passage space along vertical intervals, and any two adjacent turning platforms are respectively arranged on opposite sides of the rectangular frame; at least one walkway structure is arranged between any two adjacent turning platforms to connect the two turning platforms.

8. The boarding ladder according to claim 7, characterized in that: Two walkway structures are provided between any two adjacent turning platforms.

9. The boarding ladder according to claim 8, characterized in that A stair section is formed between any two adjacent turning platforms, and at least two stair sections are provided in the rectangular frame; the walkway structure in one stair section is the first walkway, and the walkway structure in the other stair section is the second walkway; The two first steps have two ends connected to the middle of the turning platform, the two second steps are arranged on the outside of the two first steps, and the two second steps have two ends connected to the outside of the turning platform.

10. The boarding ladder according to claim 1, characterized in that The boarding ladder also includes a connecting turntable, which includes a base plate, a rotating shaft, a first rotating plate, a second rotating plate and a rotating body, wherein the base plate is connected to the outer peripheral wall of the lower end of the lowermost boarding module; the rotating shaft extends vertically, and the lower end of the rotating shaft is arranged in the middle of the base plate; the first rotating plate is arranged on the base plate, and the first rotating plate and the second rotating plate are mounted on the rotating shaft, and the second rotating plate can rotate around the rotating shaft relative to the first rotating plate; the rotating body is fixedly connected to the upper surface of the second rotating plate and is rotatably mounted on the rotating shaft.

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