Slewing device for boarding ladder

Abstract

The utility model relates to a slewing device for a boarding ladder. The slewing device comprises a base unit, a first driving unit, a rotating unit, a plurality of adjusting units, a mounting unit, at least one fixing unit and a control unit. The boarding ladder has the advantages that the first driving unit is used for driving the rotating unit to rotate, the rotating speed of the rotating unit can be accurately controlled according to needs, then the boarding ladder is located in the needed direction, and the stability of the boarding ladder can be guaranteed; the height and the angle of the mounting unit can be flexibly adjusted by rotationally connecting the adjusting units with the mounting unit, the height and the angle of the boarding ladder can also be adjusted in real time according to actual conditions, operation is easy, the boarding ladder can be rapidly placed, the angle and the height of the boarding ladder can be automatically adjusted through one key, manual intervention is greatly reduced, and the working efficiency is improved. And the operation convenience and the response speed are improved, so that the stability of the boarding ladder is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of boarding ladders, in particular to a rotary device for boarding ladders. Background Art

[0002] In maritime transport and port operations, boarding ladders are critical equipment connecting ships to docks. Their stability and ease of operation are directly related to the efficiency of loading and unloading operations and the safety of personnel boarding and disembarking. This is especially true in harsh sea conditions, fluctuating tides, or ships with varying drafts, where frequent adjustments in angle and direction are required to accommodate the changing position of the vessel. Fixed or easily adjustable boarding ladders are often insufficient.

[0003] Existing boarding ladders mostly use fixed connections or limited mechanical adjustment methods, which make it difficult to accurately adjust to the optimal docking position in a short period of time. Although some devices can realize the rotation function, the operation process is cumbersome and requires the cooperation of multiple people or relies on complex control systems, which increases the difficulty of operation and affects work efficiency. There are also some rotating devices that have simple structures but limited load-bearing capacity and stability. When facing large ships or high-frequency usage scenarios, their load-bearing capacity and stability performance are poor, which can easily cause safety hazards.

[0004] There is no effective solution yet for the problems in related technologies such as the inability to flexibly adjust the angle and direction of the boarding ladder, complex operation, insufficient load-bearing capacity and stability. Utility Model Content

[0005] The purpose of the utility model is to provide a rotating device for a boarding ladder to address the deficiencies in the existing technology, so as to solve the problems existing in the related technology such as the inability to flexibly adjust the angle and direction of the boarding ladder, complex operation, insufficient load-bearing capacity and stability.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A rotating device for a boarding ladder, characterized by comprising:

[0008] a base unit, the base unit being arranged on a deck of the ship;

[0009] a first driving unit, wherein the first driving unit is disposed on the base unit;

[0010] a rotating unit, the rotating unit being rotatably disposed on the base unit and being in transmission connection with the first driving unit, and being configured to rotate under the action of the first driving unit;

[0011] A plurality of adjustment units, wherein the plurality of adjustment units are distributed and arranged on the top end of the rotating unit;

[0012] An installation unit, the installation unit is arranged at the top of the plurality of adjustment units and is rotatably connected to the plurality of adjustment units, and is used for adjusting the position under the action of the adjustment units and installing the boarding ladder;

[0013] at least one fixing unit, the fixing unit being arranged at a top end of the mounting unit and being used for fixing the boarding ladder;

[0014] A control unit is provided on the base unit and is respectively connected to the first driving unit and the plurality of adjusting units.

[0015] In some of these embodiments, the base unit comprises:

[0016] a base element, the base element being disposed on a deck of the ship, and the first driving unit and the control unit being disposed on an upper portion of the base element;

[0017] A first rotating element is disposed at the top of the base element and connected to the rotating bottom end of the rotating unit.

[0018] In some embodiments, the first driving unit includes:

[0019] a first driving element, the first driving element being disposed on the base unit and connected to the control unit;

[0020] A first transmission element is connected to the first driving element and the rotating unit respectively, and is used to drive the rotating unit to rotate under the action of the first driving element.

[0021] In some embodiments, the rotating unit includes:

[0022] a second rotating element, wherein a bottom end of the second rotating element is rotatably connected to a top end of the base unit;

[0023] a second transmission element, the second transmission element being disposed on the second rotating element and connected to the first driving unit, and being configured to drive the second rotating element to rotate under the action of the first driving unit;

[0024] A supporting element is provided at the top end of the second rotating element, and a plurality of adjusting units are provided at the top end of the supporting element.

[0025] In some embodiments, the first driving unit further includes:

[0026] A first deceleration element is connected to the first driving element and the first transmission element respectively, and is used to adjust the transmission ratio.

[0027] In some embodiments, the adjusting unit includes:

[0028] a hydraulic adjustment element, the hydraulic adjustment element being provided at the top end of the rotating unit and being used for adjusting the height of the mounting unit;

[0029] A third rotating element is provided at the top end of the hydraulic adjustment element and is rotatably connected to the mounting unit.

[0030] In some embodiments, the mounting unit includes:

[0031] An installation element, the installation element is arranged at the top of the plurality of the adjustment units, the top of the installation element is provided with the fixing unit, and is used to adjust the position under the action of the plurality of the adjustment units and install the boarding ladder;

[0032] A plurality of fourth rotating elements are distributed at the bottom end of the mounting element and are respectively rotatably connected to the plurality of adjusting units.

[0033] In some embodiments, the control unit includes:

[0034] a housing element disposed on a side of the base unit;

[0035] a control element, the control element being disposed on the housing element and connected to the first drive unit and the plurality of adjustment units, respectively, for controlling the rotation and placement of the boarding ladder;

[0036] a manipulation element, the manipulation element being disposed on the housing element and connected to the control element, and being used to operate the rotary device;

[0037] A power supply element is provided on the base unit and connected to the control element for supplying power.

[0038] In some embodiments, the rotating device further comprises:

[0039] A protection unit is provided between the base unit and the mounting unit, and the first driving unit and the rotating unit are provided inside the protection unit.

[0040] In some embodiments, the protection unit includes:

[0041] a first protective element, the first protective element being disposed at the top of the base unit, and the first driving unit and the rotating unit being disposed inside the first protective element;

[0042] a first connecting element, the first connecting element being disposed on a top end of the first protective element;

[0043] a second protective element, the second protective element being disposed at a top end of the first protective element, and the first driving unit and the rotating unit being disposed inside the second protective element;

[0044] a second connecting element, which is disposed at the bottom end of the second protective element and corresponds to the first connecting element, and is used to mount the second protective element on the top end of the first protective element;

[0045] A fifth rotating element is disposed on the inner side of the bottom end of the second protective element and is rotationally connected to the rotating unit.

[0046] In some embodiments, the rotating device further comprises:

[0047] A second driving unit is provided at the top of the base unit and is connected to the rotating unit, and is used for driving the rotating unit to rotate.

[0048] In some embodiments, the rotating unit further comprises:

[0049] A third transmission element is provided on the rotating unit and connected to the second driving unit, and is used for driving the rotating unit to rotate under the action of the second driving unit.

[0050] In some embodiments, the second driving unit includes:

[0051] a second driving element, the second driving element being disposed at a top end of the base unit and connected to the control unit;

[0052] A fourth transmission element is connected to the second driving element and the rotating unit respectively, and is used to drive the rotating unit to rotate under the action of the second driving element.

[0053] In some embodiments, the second driving unit further includes:

[0054] The second deceleration element is connected to the second driving element and the fourth transmission element respectively, and is used to adjust the transmission ratio.

[0055] In some embodiments, the rotating device further comprises:

[0056] At least one traction unit is provided at the top of the installation unit and is used for traction of the boarding ladder.

[0057] The present invention adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0058] The utility model discloses a rotating device for a boarding ladder. The first driving unit drives the rotating unit to rotate, and the rotation speed of the rotating unit can be accurately controlled as needed, thereby making the boarding ladder be located in a required orientation and ensuring the stability of the boarding ladder. The plurality of adjusting units are respectively connected to the mounting unit for rotation, so that the height and angle of the mounting unit can be flexibly adjusted, and the height and angle of the boarding ladder can also be adjusted in real time according to actual conditions, solving the problem that the angle and direction of the boarding ladder cannot be flexibly adjusted. The operation is simple, and the angle and height of the boarding ladder can be automatically adjusted with one button, which greatly reduces manual intervention, improves the convenience of operation and the response speed, thereby ensuring the stability and safety of the boarding ladder and solving the problem of complex operation. The protective unit is used to cover the rotating unit and the driving unit, which not only plays a protective role but also cooperates with the base unit to stabilize the mounting unit. The second driving unit is connected to the rotating unit for transmission, which not only assists the first driving unit in driving the rotating unit but also ensures the stable operation of the rotating unit as an alternative. The traction unit can stabilize the boarding ladder, ensuring the safety and stability of the boarding ladder during placement and use, solving the problem of insufficient load-bearing capacity and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 1 is a schematic diagram of a rotary device according to an embodiment of the present invention (I);

[0060] Figure 2 is a schematic diagram of a base unit according to an embodiment of the present utility model;

[0061] Figure 3 is a schematic diagram of a first driving unit according to an embodiment of the present utility model;

[0062] Figure 4 1 is a schematic diagram of a rotating unit according to an embodiment of the present invention (I);

[0063] Figure 5 is a schematic diagram of an adjustment unit according to an embodiment of the present utility model;

[0064] Figure 6 is a schematic diagram of a mounting unit according to an embodiment of the present utility model;

[0065] Figure 7 is a schematic diagram of a control unit according to an embodiment of the present utility model;

[0066] Figure 8 Schematic diagram of the rotary device according to an embodiment of the present utility model (II);

[0067] Figure 9is a schematic diagram of a protection unit according to an embodiment of the present utility model;

[0068] Figure 10 is a schematic diagram of a rotary device according to an embodiment of the present utility model;

[0069] Figure 11 2 is a schematic diagram of a rotating unit according to an embodiment of the present invention;

[0070] Figure 12 is a schematic diagram of a second driving unit according to an embodiment of the present utility model;

[0071] Figure 13 Schematic diagram of the rotary device according to an embodiment of the present invention (3).

[0072] The accompanying drawings are as follows:

[0073] 10. Base unit; 11. Base element; 12. First rotating element;

[0074] 20. First drive unit; 21. First drive element; 22. First transmission element; 23. First deceleration element;

[0075] 30. Rotating unit; 31. Second rotating element; 32. Second transmission element; 33. Support element; 34. Third transmission element;

[0076] 40. Adjustment unit; 41. Hydraulic adjustment element; 42. Third rotating element;

[0077] 50. Mounting unit; 51. Mounting element; 52. Fourth rotating element;

[0078] 60. Fixed unit;

[0079] 70. Control unit; 71. Housing element; 72. Control element; 73. Operating element; 74. Power supply element;

[0080] 80. Protection unit; 81. First protection element; 82. First connecting element; 83. Second protection element; 84. Second connecting element; 85. Fifth rotating element;

[0081] 90. Second drive unit; 91. Second drive element; 92. Fourth transmission element; 93. Second deceleration element;

[0082] 100. Traction unit. DETAILED DESCRIPTION

[0083] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0084] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.

[0085] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.

[0086] Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the technical field to which this application belongs. The words "one", "a", "the" and the like used in this application do not indicate a limit on quantity and may indicate the singular or plural. The terms "include", "comprise", "have" and any variations thereof used in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or units (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units that are inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The word "multiple" used in this application means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.

[0087] Example 1

[0088] An illustrative embodiment of the present invention is as follows: Figure 1 As shown, a rotating device for a boarding ladder comprises a base unit 10, a first drive unit 20, a rotating unit 30, a plurality of adjustment units 40, a mounting unit 50, at least one fixing unit 60, and a control unit 70. The base unit 10 is mounted on a deck of a ship; the first drive unit 20 is mounted on the base unit 10; the rotating unit 30 is rotatably mounted on the base unit 10 and is in transmission connection with the first drive unit 20 for rotation under the action of the first drive unit 20; the plurality of adjustment units 40 are distributed at the top of the rotating unit 30; the mounting unit 50 is mounted at the top of the plurality of adjustment units 40 and is respectively rotatably connected to the plurality of adjustment units 40 for adjusting the position under the action of the adjustment units 40 and for mounting the boarding ladder; the fixing unit 60 is mounted at the top of the mounting unit 50 for fixing the boarding ladder; and the control unit 70 is mounted on the base unit 10 and is respectively connected to the first drive unit 20 and the plurality of adjustment units 40.

[0089] In some embodiments, there are two fixing units 60 , which are symmetrically disposed on one side of the mounting unit 50 .

[0090] In some embodiments, the fixing unit 60 is a fixing seat.

[0091] like Figure 2 As shown, the base unit 10 includes a base element 11 and a first rotating element 12. The base element 11 is installed on the deck of the ship, and the first driving unit 20 and the control unit 70 are installed on the upper part of the base element 11. The first rotating element 12 is installed at the top end of the base element 11 and is rotatably connected to the bottom end of the rotating unit 30.

[0092] In some of the embodiments, the base element 11 is a base.

[0093] In some embodiments, the first rotating element 12 is disposed at the center of the top end of the base element 11 .

[0094] The first rotating element 12 is connected to the base element 11 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0095] The size of the first rotating element 12 matches the size of the base element 11. Generally, the radial size (such as the outer diameter) of the first rotating element 12 is smaller than the radial size (such as the outer diameter, length, width) of the base element 11.

[0096] In some embodiments, the first rotating element 12 is a rotating groove.

[0097] like Figure 3 As shown, the first drive unit 20 includes a first drive element 21 and a first transmission element 22. The first drive element 21 is disposed on the base unit 10 and connected to the control unit 70; the first transmission element 22 is connected to the first drive element 21 and the rotation unit 30 respectively, and is used to drive the rotation unit 30 to rotate under the action of the first drive element 21.

[0098] Specifically, the first driving element 21 is disposed on the base element 11 .

[0099] In some embodiments, the first driving element 21 includes but is not limited to a motor.

[0100] The first transmission element 22 is connected to the first driving element 21 in a detachable manner, wherein the detachable connection manner includes but is not limited to a gear sleeve connection.

[0101] In some embodiments, the first transmission element 22 is a first transmission gear.

[0102] Furthermore, the first driving unit 20 further includes a first deceleration element 23. The first deceleration element 23 is connected to the first driving element 21 and the first transmission element 22 respectively, and is used to adjust the transmission ratio.

[0103] In some embodiments, a transmission ratio between the first deceleration element 23 and the first driving element 21 is 1:2 to 1:100.

[0104] In some embodiments, the first deceleration element 23 is a first reducer.

[0105] like Figure 4 As shown, the rotating unit 30 includes a second rotating element 31, a second transmission element 32, and a support element 33. The bottom end of the second rotating element 31 is rotatably connected to the top end of the base unit 10. The second transmission element 32 is disposed on the second rotating element 31 and is connected to the first drive unit 20, and is used to drive the second rotating element 31 to rotate under the action of the first drive unit 20. The support element 33 is disposed at the top end of the second rotating element 31, and a plurality of adjustment units 40 are disposed on the top end of the support element 33.

[0106] Specifically, the bottom end of the second rotating element 31 is rotationally connected to the first rotating element 12 ; and the second transmission element 32 is transmission-connected to the first transmission element 22 .

[0107] The size of the second rotating element 31 matches the size of the first rotating element 12. Generally, the radial size (eg, outer diameter) of the second rotating element 31 is equal to the radial size (eg, inner diameter) of the first rotating element 12.

[0108] In some embodiments, the second rotating element 31 is a rotating shaft.

[0109] The size of the second transmission element 32 matches the size of the second rotating element 31. Generally, the radial size (such as the outer diameter) of the second transmission element 32 is larger than the size (such as the outer diameter) of the second rotating element 31.

[0110] The transmission ratio of the second transmission element 32 to the first transmission element 22 is 1:2 to 1:5.

[0111] In some embodiments, the second transmission element 32 is a second transmission gear.

[0112] The support element 33 and the second rotating element 31 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding, and the detachable connection includes but is not limited to flange connection.

[0113] The cross section of the supporting element 33 is circular.

[0114] The size of the support element 33 matches the size of the second rotating element 31. Generally, the radial size (such as the outer diameter) of the support element 33 is greater than the radial size (such as the outer diameter) of the second rotating element 31.

[0115] The size of the support element 33 matches the size of the second transmission element 32. Generally, the radial size (such as the outer diameter) of the support element 33 is larger than the radial size (such as the outer diameter) of the second transmission element 32.

[0116] In some embodiments, the support element 33 is a support plate.

[0117] like Figure 5 As shown, the adjustment unit 40 includes a hydraulic adjustment element 41 and a third rotating element 42. The hydraulic adjustment element 41 is disposed at the top of the rotating unit 30 and is used to adjust the height of the mounting unit 50; the third rotating element 42 is disposed at the top of the hydraulic adjustment element 41 and is rotatably connected to the mounting unit 50.

[0118] Specifically, the hydraulic adjustment element 41 is disposed at the top end of the support element 33 .

[0119] In some embodiments, there are four adjustment units 40 , which are distributed on the top of the support element 33 .

[0120] The hydraulic adjustment element 41 and the support element 33 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0121] In some embodiments, the hydraulic adjustment element 41 is a first hydraulic push rod.

[0122] The third rotating element 42 is connected to the hydraulic adjustment element 41 in a fixed connection, wherein the fixed connection includes but is not limited to integral molding.

[0123] In some embodiments, the third rotating element 42 is a first rotating base.

[0124] like Figure 6 As shown, the installation unit 50 includes a mounting element 51 and a plurality of fourth rotating elements 52. The mounting element 51 is disposed on the top of the plurality of adjustment units 40. A fixing unit 60 is disposed on the top of the mounting element 51 for adjusting the position under the action of the plurality of adjustment units 40 and for installing the boarding ladder. The plurality of fourth rotating elements 52 are distributed at the bottom of the mounting element 51 and are respectively rotatably connected to the plurality of adjustment units 40.

[0125] Specifically, the mounting element 51 is disposed on the top end of the hydraulic adjustment element 41 ; the fourth rotating element 52 is connected to the third rotating element 42 .

[0126] The size of the mounting element 51 matches the size of the hydraulic adjustment element 41. Generally, the radial size (eg, outer diameter) of the mounting element 51 is larger than the radial size (eg, outer diameter) of the circular cross section formed by the plurality of hydraulic adjustment elements 41.

[0127] In some embodiments, the mounting element 51 is a mounting plate.

[0128] The fourth rotating element 52 and the mounting element 51 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to flange connection.

[0129] The size of the fourth rotating element 52 matches that of the third rotating element 42. Generally, the radial size (eg, outer diameter) of the connecting end of the fourth rotating element 52 is equal to the radial size (eg, outer diameter) of the connecting end of the third rotating element 42.

[0130] The number of the fourth rotating elements 52 matches the number of the adjusting units 40. Generally, the number of the fourth rotating elements 52 is equal to the number of the adjusting units 40.

[0131] In some embodiments, the fourth rotating element 52 is a second rotating base.

[0132] like Figure 7 As shown, the control unit 70 includes a housing element 71, a control element 72, a manipulation element 73, and a power supply element 74. The housing element 71 is disposed on the side of the base unit 10; the control element 72 is disposed on the housing element 71 and is respectively connected to the first drive unit 20 and the plurality of adjustment units 40 for controlling the rotation and placement of the boarding ladder; the manipulation element 73 is disposed on the housing element 71 and is connected to the control element 72 for operating the rotating device; and the power supply element 74 is disposed on the base unit 10 and is connected to the control element 72 for supplying power.

[0133] Specifically, the housing element 71 is disposed on a side of the base element 11 ; the control element 72 is connected to the first drive element 21 and the hydraulic adjustment element 41 respectively.

[0134] The housing element 71 and the base element 11 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a bolt connection.

[0135] In some of these embodiments, the housing element 71 is a mounting box.

[0136] In some embodiments, the control element 72 includes but is not limited to a single chip microcomputer, a chip, and a processor.

[0137] In some embodiments, the control element 73 includes but is not limited to a switch button, an adjustment button, an OK button, etc.

[0138] In some embodiments, the power supply element 74 includes but is not limited to a battery pack.

[0139] The use method of this utility model:

[0140] The boarding ladder is fixed to the mounting element 51 by using the fixing unit 60; the control element 73 is operated to use the control element 72 to control the first driving element 21 to drive the first transmission element 22 to rotate, thereby driving the second transmission element 32 to rotate, thereby driving the second rotating element 31 to rotate relative to the first rotating element 12, and the first deceleration element 23 adjusts the transmission ratio of the first driving element 21; the second rotating element 31 drives the supporting element 33 to rotate, and the mounting element 51 is used to drive the boarding ladder to rotate to a position where the boarding ladder can be placed; at the same time, the control element 73 is used to control the height of the hydraulic adjustment element 41 on the side close to the boarding ladder placement position to be lower than the height of the hydraulic adjustment element 41 on the side away from the boarding ladder placement position, the third rotating element 42 and the fourth rotating element 52 rotate relative to each other, and the angle of the mounting element 51 is adjusted accordingly to tilt the boarding ladder downward, and the hydraulic adjustment element 41 is operated to adjust the height of the mounting element 51 until the boarding ladder is safely in the correct position, and the height and angle of the mounting element 51 are locked respectively by using several adjustment units 40.

[0141] The technical effects of the utility model are as follows:

[0142] The first driving unit is used to drive the rotating unit to rotate, and the rotation speed of the rotating unit is controlled as needed, so as to rotate the boarding ladder so that the boarding ladder is located in the required direction. The rotation speed is adjustable and the stability of the boarding ladder is guaranteed; the height and angle of the mounting unit can be flexibly adjusted by utilizing the rotation connection between the adjusting unit and the mounting unit, and the height and angle of the boarding ladder can be adjusted in real time according to actual conditions, which solves the problem of not being able to flexibly adjust the angle and direction of the boarding ladder; the operation is simple, the boarding ladder can be quickly placed, and the angle and height of the boarding ladder can be automatically adjusted with one button, which greatly reduces manual intervention, improves the convenience of operation and the response speed, thereby ensuring the stability of the boarding ladder and solving the problem of complex operation.

[0143] Example 2

[0144] This embodiment is a variation of embodiment 1.

[0145] like Figure 8 As shown, the rotary device further includes a protection unit 80. The protection unit 80 is disposed between the base unit 10 and the mounting unit 50, and the first driving unit 20 and the rotating unit 30 are disposed inside the protection unit 80.

[0146] like Figure 9As shown, the protection unit 80 includes a first protection element 81, a first connecting element 82, a second protection element 83, a second connecting element 84, and a fifth rotating element 85. The first protection element 81 is disposed at the top of the base unit 10, and the first driving unit 20 and the rotating unit 30 are disposed inside the first protection element 81; the first connecting element 82 is disposed at the top of the first protection element 81; the second protection element 83 is disposed at the top of the first protection element 81, and the first driving unit 20 and the rotating unit 30 are disposed inside the second protection element 83; the second connecting element 84 is disposed at the bottom of the second protection element 83 and corresponds to the first connecting element 82, and is used to mount the second protection element 83 on the top of the first protection element 81; and the fifth rotating element 85 is disposed inside the bottom of the second protection element 83 and is rotatably connected to the rotating unit 30.

[0147] Specifically, the first protection element 81 is disposed on the top of the base element 11 ; the fifth rotation element 85 is rotationally connected to the support element 33 .

[0148] The first protection element 81 and the base element 11 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to integral molding and welding; the detachable connection includes but is not limited to flange connection.

[0149] The size of the first protection element 81 matches the size of the base element 11. Generally, the radial size (such as the outer diameter) of the first protection element 81 is smaller than the radial size (such as the outer diameter, length, width) of the base element 11.

[0150] The size of the first protective element 81 matches the size of the second rotating element 31. Generally, the radial size (such as the inner diameter) of the first protective element 81 is larger than the radial size (such as the outer diameter) of the second rotating element 31, and the height of the first protective element 81 is smaller than the height of the second rotating element 31.

[0151] The size of the first protection element 81 matches the size of the second transmission element 32. Generally, the radial size (such as the inner diameter) of the first protection element 81 is larger than the radial size (such as the outer diameter) of the second transmission element 32.

[0152] The size of the first protection element 81 matches the size of the support element 33. Generally, the radial size (such as the inner diameter) of the first protection element 81 is smaller than the radial size (such as the outer diameter) of the support element 33.

[0153] In some embodiments, the first protective element 81 is a first housing.

[0154] The first connecting element 82 and the first protective element 81 are connected in a fixed manner, wherein the fixed connection manner includes but is not limited to integral molding.

[0155] The size of the first connecting element 82 matches the size of the first protective element 81. Generally, the radial size (such as the outer diameter) of the first connecting element 82 is larger than the radial size (such as the outer diameter) of the first protective element 81.

[0156] In some embodiments, the first connecting element 82 is a first connecting seat.

[0157] The size of the second protection element 83 matches the size of the first protection element 81. Generally, the radial size (such as the outer diameter) of the second protection element 83 is equal to the radial size (such as the outer diameter) of the first protection element 81.

[0158] The size of the second protective element 83 matches the size of the support element 33. Generally, the inner diameter of the second protective element 83 is smaller than the outer diameter of the support element 33, the outer diameter of the second protective element 83 is larger than the outer diameter of the support element 33, and the height of the second protective element 83 is greater than the height of the support element 33.

[0159] In some embodiments, the second protective element 83 is a second housing.

[0160] The second connecting element 84 and the second protective element 83 are connected in a fixed manner, wherein the fixed connection manner includes but is not limited to integral molding.

[0161] The second connecting element 84 is connected to the first connecting element 82 in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0162] The size of the second connecting element 84 matches the size of the second protective element 83. Generally, the radial size (such as the outer diameter) of the second connecting element 84 is larger than the radial size (such as the outer diameter) of the second protective element 83.

[0163] The size of the second connecting element 84 matches the size of the first connecting element 82. Generally, the radial size (eg, outer diameter) of the second connecting element 84 is equal to the radial size (eg, outer diameter) of the first connecting element 82.

[0164] In some embodiments, the second connecting element 84 is a second connecting seat.

[0165] The size of the fifth rotating element 85 matches the size of the second protective element 83. Generally, the outer diameter of the fifth rotating element 85 is larger than the inner diameter of the second protective element 83 and smaller than the outer diameter of the second protective element 83. The height of the fifth rotating element 85 is smaller than the height of the second protective element 83.

[0166] The size of the fifth rotating element 85 matches the size of the supporting element 33. Generally, the radial size (such as the outer diameter) of the fifth rotating element 85 is not less than the radial size (such as the outer diameter) of the supporting element 33.

[0167] In some embodiments, the fifth rotating element 85 is a rotating groove.

[0168] The method of using this embodiment is as follows:

[0169] The height and angle of the mounting element 51 are adjusted using the steps and methods of Example 1. The supporting element 33 rotates within the fifth rotating element 85 , and the second protective element 83 cooperates with the first protective element 81 to fix the supporting element 33 .

[0170] The other usage methods are the same as those in Example 1 and are not described in detail here.

[0171] The technical effects of this embodiment are as follows:

[0172] By setting up a protective unit, not only the driving unit and the rotating unit can be protected, but also the rotating unit can be stabilized. While increasing the stability of the base unit, the rotating unit can be pressed at the top to ensure the stability of the rotating unit when placing the boarding ladder, solving the problem of insufficient load-bearing and stability.

[0173] Example 3

[0174] This embodiment is a variation of Embodiments 1 and 2.

[0175] like Figure 10 As shown, the rotary device further includes a second driving unit 90. The second driving unit 90 is disposed at the top of the base unit 10 and connected to the rotating unit 30 for driving the rotating unit 30 to rotate.

[0176] like Figure 11 As shown, the rotating unit 30 further includes a third transmission element 34. The third transmission element 34 is provided on the rotating unit 30 and connected to the second driving unit 90, and is used to drive the rotating unit 30 to rotate under the action of the second driving unit 90.

[0177] The third transmission element 34 and the second rotating element 31 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to integral molding; the detachable connection includes but is not limited to gear sleeve connection.

[0178] The size of the third transmission element 34 matches the size of the second rotating element 31. Generally, the radial size (such as the outer diameter) of the third transmission element 34 is smaller than the radial size (such as the outer diameter) of the second rotating element 31.

[0179] The size of the third transmission element 34 matches the size of the second transmission element 32. Generally, the radial size (such as the outer diameter) of the third transmission element 34 is smaller than the radial size (such as the outer diameter) of the second transmission element 32.

[0180] In some embodiments, the third transmission element 34 is a third transmission gear.

[0181] like Figure 12 As shown, the second drive unit 90 includes a second drive element 91 and a fourth transmission element 92. The second drive element 91 is disposed at the top of the base unit 10 and is connected to the control unit 70; the fourth transmission element 92 is connected to the second drive element 91 and the rotation unit 30 respectively, and is used to drive the rotation unit 30 to rotate under the action of the second drive element 91.

[0182] Specifically, the second driving element 91 is disposed at the top of the base element 11 and is connected to the control element 72 ; the fourth transmission element 92 is transmission-connected to the third transmission element 34 .

[0183] In some embodiments, the second driving element 91 includes but is not limited to a motor.

[0184] The fourth transmission element 92 and the second driving element 91 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a gear sleeve connection.

[0185] The size of the fourth transmission element 92 matches the size of the third transmission element 34. Generally, the radial size (eg, outer diameter) of the fourth transmission element 92 is no greater than half the radial size (eg, outer diameter) of the third transmission element 34.

[0186] In some embodiments, the fourth transmission element 92 is a fourth transmission gear.

[0187] The transmission ratio of the fourth transmission element 92 to the third transmission element 34 is 1:2 to 1:5.

[0188] Furthermore, the second driving unit 90 further includes a second deceleration element 93. The second deceleration element 93 is connected to the second driving element 91 and the fourth transmission element 92 respectively, and is used to adjust the transmission ratio.

[0189] In some embodiments, a transmission ratio between the second deceleration element 93 and the second driving element 91 is 1:2 to 1:100.

[0190] In some embodiments, the second deceleration element 93 is a second speed reducer.

[0191] The method of using this embodiment is as follows:

[0192] When the driving force of the first driving element 21 is insufficient or the first driving element 21 cannot work, the second driving element 91 can be started to drive the fourth transmission element 92 to rotate, and the transmission ratio is adjusted by the second deceleration element 93 to drive the third transmission element 34, the second rotating element 31, and the support element 33 to rotate.

[0193] Other usage methods are the same as those in Example 1 and are not described in detail here.

[0194] The technical effects of this embodiment are as follows:

[0195] By providing a second driving unit, the first driving unit can be assisted to drive the rotating unit to rotate. At the same time, as an alternative, when the first driving unit fails to work, the second driving unit can be driven to rotate to ensure stable operation of the rotating unit.

[0196] Example 4

[0197] This embodiment is a variation of Embodiments 1 to 3.

[0198] As shown in FIG13 , the rotary device further includes at least one traction unit 100. The traction unit 100 is disposed at the top of the installation unit 50 and is used to traction the boarding ladder.

[0199] Specifically, the traction unit 100 is disposed at the top end of the mounting element 51 and is located at the side of the fourth rotating element 52 .

[0200] The traction unit 100 is connected to the mounting element 51 in a rotational manner.

[0201] In some embodiments, there are two traction units 100 , which are symmetrically disposed on the sides of the fourth rotating element 52 .

[0202] In some embodiments, the traction unit 100 is a second hydraulic push rod.

[0203] The method of using this embodiment is as follows:

[0204] After the fourth rotating element 52 is connected to the boarding ladder, the traction units 100 are connected to the sides of the boarding ladder respectively, so that when the boarding ladder tilts downward, the length of the traction units 100 is adjusted accordingly to assist in stabilizing the boarding ladder in real time.

[0205] The technical effects of this embodiment are as follows:

[0206] By utilizing the rotational connection between the traction unit and the installation unit, the ladder can be rotated and the length adjusted accordingly according to the angle of the ladder to ensure the stability and safety of the ladder in real time, thus solving the problems of heaviness and lack of stability.

[0207] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary device for a boarding ladder, characterized in that: include: a base unit, the base unit being arranged on a deck of the ship; a first driving unit, wherein the first driving unit is disposed on the base unit; a rotating unit, the rotating unit being rotatably disposed on the base unit and being in transmission connection with the first driving unit, and being configured to rotate under the action of the first driving unit; A plurality of adjustment units, wherein the plurality of adjustment units are distributed and arranged on the top end of the rotating unit; An installation unit, the installation unit is arranged at the top of the plurality of adjustment units and is rotatably connected to the plurality of adjustment units, and is used for adjusting the position under the action of the adjustment units and installing the boarding ladder; at least one fixing unit, the fixing unit being arranged at a top end of the mounting unit and being used for fixing the boarding ladder; A control unit is provided on the base unit and is respectively connected to the first driving unit and the plurality of adjusting units.

2. The rotary device according to claim 1, characterized in that: The base unit comprises: a base element, the base element being disposed on a deck of the ship, and the first driving unit and the control unit being disposed on an upper portion of the base element; a first rotating element, which is disposed at the top of the base element and is rotatably connected to the bottom end of the rotating unit; and / or The first driving unit includes: a first driving element, the first driving element being disposed on the base unit and connected to the control unit; a first transmission element, the first transmission element being connected to the first driving element and the rotating unit respectively, and being configured to drive the rotating unit to rotate under the action of the first driving element; and / or The rotating unit comprises: a second rotating element, wherein a bottom end of the second rotating element is rotatably connected to a top end of the base unit; a second transmission element, the second transmission element being disposed on the second rotating element and connected to the first driving unit, and being configured to drive the second rotating element to rotate under the action of the first driving unit; A supporting element is provided at the top end of the second rotating element, and a plurality of adjusting units are provided at the top end of the supporting element.

3. The rotary device according to claim 2, characterized in that: The first driving unit further includes: A first deceleration element is connected to the first driving element and the first transmission element respectively, and is used to adjust the transmission ratio.

4. The rotary device according to claim 1, characterized in that: The adjustment unit includes: a hydraulic adjustment element, the hydraulic adjustment element being provided at the top end of the rotating unit and being used for adjusting the height of the mounting unit; a third rotating element, the third rotating element being disposed at a top end of the hydraulic adjustment element and being rotatably connected to the mounting unit; and / or The installation unit includes: An installation element, the installation element is arranged at the top of the plurality of the adjustment units, the top of the installation element is provided with the fixing unit, and is used to adjust the position under the action of the plurality of the adjustment units and install the boarding ladder; A plurality of fourth rotating elements are distributed at the bottom end of the mounting element and are respectively rotatably connected to the plurality of adjusting units.

5. The rotary device according to claim 1, characterized in that: The control unit comprises: a housing element disposed on a side of the base unit; a control element, the control element being disposed on the housing element and connected to the first drive unit and the plurality of adjustment units, respectively, for controlling the rotation and placement of the boarding ladder; a manipulation element, the manipulation element being disposed on the housing element and connected to the control element, and being used to operate the rotary device; A power supply element is provided on the base unit and connected to the control element for supplying power.

6. The rotary device according to any one of claims 1 to 5, characterized in that: Also includes: a protection unit, the protection unit being disposed between the base unit and the mounting unit, and the first driving unit and the rotating unit being disposed inside the protection unit; and / or a second driving unit, which is disposed at the top of the base unit and connected to the rotating unit, and is used to drive the rotating unit to rotate; and / or At least one traction unit is provided at the top of the installation unit and is used for traction of the boarding ladder.

7. The rotary device according to claim 6, characterized in that: The protection unit includes: a first protective element, the first protective element being disposed at the top of the base unit, and the first driving unit and the rotating unit being disposed inside the first protective element; a first connecting element, the first connecting element being disposed on a top end of the first protective element; a second protective element, the second protective element being disposed at a top end of the first protective element, and the first driving unit and the rotating unit being disposed inside the second protective element; a second connecting element, which is disposed at the bottom end of the second protective element and corresponds to the first connecting element, and is used to mount the second protective element on the top end of the first protective element; A fifth rotating element is disposed on the inner side of the bottom end of the second protective element and is rotationally connected to the rotating unit.

8. The rotary device according to claim 6, characterized in that: The rotating unit further includes: A third transmission element is provided on the rotating unit and connected to the second driving unit, and is used for driving the rotating unit to rotate under the action of the second driving unit.

9. The rotary device according to claim 6, characterized in that: The second driving unit includes: a second driving element, the second driving element being disposed at a top end of the base unit and connected to the control unit; A fourth transmission element is connected to the second driving element and the rotating unit respectively, and is used to drive the rotating unit to rotate under the action of the second driving element.

10. The rotary device according to claim 9, characterized in that: The second driving unit further includes: The second deceleration element is connected to the second driving element and the fourth transmission element respectively, and is used to adjust the transmission ratio.

Images