Lift apparatus for ship

Abstract

A ship lifting device according to the first embodiment of the present invention comprises a lifting passage installed to be sliding along the outer surface of a hull and a lifting platform that is raised and lowered within the lifting passage. The lifting passage comprises an entrance positioned adjacent to a workspace provided in the hull and a lifting section positioned below the entrance and adjacent to a quay wall where the hull is berthed, which slides in an up-and-down direction in response to changes in sea level height due to tides, thereby allowing the lower end of the lifting passage to slide along the outer surface of the hull.

Description

Technology Field

[0001] The present invention relates to a ship lifting device. Background Technology

[0002] A shipyard is a place where ships are built and repaired, requiring facilities and various technologies to safely construct large vessels. Various operations are carried out during shipbuilding, and quays play a crucial role in the efficient execution of these tasks. A quay is the wall section of a shipyard facing the sea, serving as both a place to anchor ships and a workspace. Quays typically require deep water and are designed to allow ships to dock stably. Once a ship is docked at the quay, various operations necessary for shipbuilding can be performed.

[0003] When a vessel is berthed at a quay, an elevator may be installed on the outer wall of the vessel to transport work materials or workers from the quay to the workspace within the hull. The elevator may be designed along the outer wall of the vessel in the vertical direction, positioned so that its lower end is adjacent to the quay and its upper end is adjacent to the workspace within the hull.

[0004] However, in cases where sea level changes due to tides, the height difference between the outer wall and the workspace of the hull varies depending on the sea level change, making the reinstallation of the elevator essential; furthermore, if the elevator is not adapted to the sea level change, a problem may arise where the elevator is damaged by the outer wall. The problem to be solved

[0005] The objective of the present invention is to provide a ship lifting device that is installed to slide along the outer wall of a ship in response to changes in sea level height due to tides when the ship is berthed at a quay.

[0006] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] A ship lifting device according to one embodiment of the present invention comprises a lifting passage installed to be sliding along the outer surface of a hull and a lifting platform that is raised and lowered within the lifting passage. The lifting passage comprises an entrance positioned adjacent to a workspace provided in the hull and a lifting member positioned below the entrance and adjacent to a quay wall where the hull is berthed, wherein the lower end of the lifting passage slides along the outer surface of the hull by sliding in an upward and downward direction in response to changes in sea level height due to tides.

[0008] Specifically, the elevator passage further includes a frame portion in which the elevator platform is raised and lowered inside and at least a portion slides along the outer surface of the hull, and the frame portion may be supported or slide along the outer surface of the hull by at least one of the entrance and the elevator portion.

[0009] Specifically, the elevator passage is positioned so that its lower end is adjacent to the quay wall, but when the height of the sea level changes due to tides, the elevator section can be slid to maintain its lower end adjacent to the quay wall.

[0010] Specifically, the lifting platform can be raised and lowered along the lifting passage, thereby allowing work materials or workers to be transported from the quay wall adjacent to the lower end of the lifting passage to the workspace of the hull.

[0011] Specifically, the frame portion is slidably coupled to the entrance, and its lower end can be fixedly coupled to the lifting portion.

[0012] Specifically, the entrance is fixed to the outer surface of the hull, and the frame part can slide relative to the entrance when the lifting part slides.

[0013] Specifically, the upper part of the frame portion may be fixedly connected to the entrance, and the lower part may be fixedly connected to the lifting portion.

[0014] Specifically, the entrance is fixed to the outer surface of the hull, and the height of the frame portion can be extended or shortened when the lifting portion slides. Effects of the invention

[0015] A ship lifting device according to one embodiment of the present invention is installed to slide along the outer wall of the ship when the ship is berthed at a quay, thereby enabling it to respond to changes in sea level height due to tides and to smoothly transport work materials or workers from the quay to the workspace of the ship.

[0016] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0017] FIGS. 1 and 2 are drawings showing a state in which a ship equipped with a ship lifting device according to one embodiment of the present invention is berthed at a quay. FIG. 3 is a drawing for explaining that the lower end of the elevator passage slides along the outer surface of the hull in a ship elevator device according to one embodiment of the present invention. FIG. 4 is a drawing showing that the frame portion of a ship elevator according to one embodiment of the present invention is configured as a bellows structure. FIG. 5 is a drawing showing that the frame portion of a ship elevator according to one embodiment of the present invention is configured as a scissor lift structure. Specific details for implementing the invention

[0018] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. It should be noted that in assigning reference numerals to the components of each drawing in this specification, identical components are assigned the same number whenever possible, even if they are shown in different drawings. Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions would unnecessarily obscure the essence of the invention.

[0019] In addition, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that all modifications, equivalents, and substitutions included within the concept and technical scope of the present invention are included.

[0020] Additionally, terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0021] In addition, it should be noted that terms indicating directionality such as forward, backward, left, right, longitudinal, and transverse are defined based on a ship consisting of a bow, stern, sides (port and starboard), upper deck, and bottom.

[0022] Furthermore, it should be noted that in this specification, the term "ship" encompasses not only merchant vessels that transport cargo from a place of origin to a destination, but also offshore structures that float at a certain point on the sea and perform specific tasks.

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0025] FIGS. 1 and 2 are drawings showing a state in which a ship equipped with a ship lifting device according to an embodiment of the present invention is berthed at a quay. For reference, FIG. 1 is a drawing showing a ship berthed at a quay during high tide when the sea level is high, and FIG. 2 is a drawing showing a ship berthed at a quay during low tide when the sea level is low.

[0026] Referring to FIGS. 1 and 2, a ship lifting device (100) according to one embodiment of the present invention includes a lifting passage (110) installed to be sliding along the outer surface (11) of a hull (10) and a lifting platform (120) that is raised and lowered within the lifting passage (110).

[0027] A ship lifting device (100) according to one embodiment of the present invention may be installed on the outer surface (11) of the hull (10) to transport work materials or workers to the workspace of the hull (10) when the ship is docked at the quay (1).

[0028] The elevator passage (110) is positioned so that its lower end is adjacent to the seawall (1), but when the height of the sea level changes due to tides, the elevator section (114) can be slid to maintain the lower end adjacent to the seawall (1).

[0029] The lifting platform (120) can be raised and lowered along the lifting passage (110), thereby allowing the lower end of the lifting passage (110) to transport work materials or workers from the adjacent quay wall (1) to the workspace of the hull (10).

[0030] Specifically, the ship lifting device (100) may be composed of a lifting passage (110) installed to slide along the outer wall of the hull (10) and a lifting platform (120) that moves up and down within it. The lower end of the lifting passage (110) is positioned at a point close to the quay wall (1), and by sliding up and down in accordance with the change in the height of the sea level due to tides, it can flexibly respond to changes in the relative height between the ship lifting device (100) and the quay wall (1).

[0031] That is, the lower end of the elevator passage (110) automatically slides fluidly along the outer wall of the hull (10) in response to changes in the height of the sea level, so that the lower end of the elevator passage (110) can be stably positioned at a point adjacent to the quay wall (1) even when the sea level rises or falls.

[0032] For example, as in the case of Fig. 1, at high tide when the sea level is high, the height from the quay wall (1) to the workspace of the hull (10) increases, so the lifting passage (110) of the ship lifting device (100) according to one embodiment of the present invention can slide downward to maintain a distance from the quay wall (1).

[0033] On the other hand, as in the case of FIG. 2, at low tide when the sea level is low, the height from the quay wall (1) to the workspace of the hull (10) is reduced, so the lifting passage (110) of the ship lifting device (100) according to one embodiment of the present invention can slide upward to maintain the distance from the quay wall (1).

[0034] FIG. 3 is a drawing illustrating that the lower end of the elevator passage slides along the outer surface of the hull in a ship elevator device according to one embodiment of the present invention. For reference, the left drawing of FIG. 3 shows the case of high tide when the sea level is high, and the right drawing shows the case of low tide when the sea level is low.

[0035] Referring to FIG. 3, in a ship lifting device (100) according to one embodiment of the present invention, the lifting passage (110) may be composed of an entrance (112) located near the workspace of the hull (10), a frame part (116) through which a lifting platform (120) is raised and lowered inside, and a lifting part (114) at the bottom of the frame part (116).

[0036] Specifically, the entrance (112) may be positioned adjacent to a workspace provided in the hull (10) and may be connected to the workspace of the hull (10) through a connecting part (118).

[0037] The lifting section (114) is provided below the entrance (112) and can be positioned adjacent to the quay wall (1) where the hull (10) docks.

[0038] The lifting member (114) can be supported on the outer surface (11) of the hull (10) or slide along the outer surface (11) of the hull (10) through a sliding member (119) that contacts the outer surface (11) of the hull (10).

[0039] The lifting section (114) can slide in the up and down direction in response to changes in sea level height due to tides, thereby allowing the lower end of the lifting passage (110) to slide along the outer surface (11) of the hull (10).

[0040] The lifting platform (120) is raised and lowered inside the frame section (116), and the frame section (116) can be supported or slid on the outer surface (11) of the hull (10) by at least one of the entrance (112) and the lifting section (114).

[0041] The frame portion (116) can be slid along the outer surface (11) of the hull (10) at least in part by sliding the lifting portion (114).

[0042] The frame portion (116) is slidably connected to the entrance (112), and its lower end can be fixedly connected to the lifting portion (114).

[0043] The entrance (112) is fixed to the outer surface (11) of the hull (10), and the frame part (116) can slide relative to the entrance (112) when the lifting part (114) slides.

[0044] That is, the entrance (112) is fixed at one point but is not fixedly connected to the frame part (116), and the frame part (116) can be connected so as to allow relative movement to the entrance (112) as it slides up and down by the lower lifting part (114).

[0045] The entrance (112) can be fixed to the outer surface (11) of the hull (10) through the connecting part (118), and the lifting part (114) can slide along the outer surface (11) of the hull (10) through the sliding part (119).

[0046] The sliding part (119) can be configured as a roller type that slides smoothly along the outer surface (11) of the hull (10) and does not damage the outer surface (11) of the hull (10).

[0047] For example, in the case of high tide when the sea level is high, the lifting section (114) can be slid downward, thereby increasing the height between the entrance (112) and the lifting section (114). At this time, the entrance (112) can be located at the top of the frame section (116), and the lifting section (114) can be located at the bottom of the frame section (116).

[0048] For example, in the case of low tide when the sea level is low, the lifting section (114) can slide upward, thereby reducing the height between the entrance (112) and the lifting section (114). At this time, the upper part of the frame section (116) may protrude at least partially upward from the entrance (112), and the lifting section (114) may be positioned at the lower part of the frame section (116).

[0049] FIG. 4 is a drawing showing that the frame portion of a ship elevator according to one embodiment of the present invention is configured as a bellows structure. For reference, the left drawing of FIG. 4 shows the case of high tide when the sea level is high, and the right drawing shows the case of low tide when the sea level is low.

[0050] Referring to FIG. 4, unlike the embodiment of FIG. 3, the frame portion (116) of the ship lifting device (100) according to one embodiment of the present invention may be configured as a bellows structure in which the frame portion (116) itself can be extended or shortened.

[0051] The entrance (112) is fixedly installed on the outer surface (11) of the hull (10), and the height of the frame part (116) can be extended or shortened when the lifting part (114) slides.

[0052] The upper part of the frame (116) can be fixedly connected to the entrance (112), and the lower part can be fixedly connected to the lifting part (114).

[0053] The frame part (116) has a body part connecting the entrance (112) and the lifting part (114) configured as a bellows structure, so that the height of the body part can be extended or reduced as it slides up and down by the lifting part (114) at the bottom.

[0054] The accordion structure consists of multiple overlapping sliding parts that allow for contraction and expansion, thereby enabling length adjustment.

[0055] The accordion structure can extend or shorten its length by sliding in response to changes in sea level or environmental fluctuations.

[0056] Since the accordion structure operates in a sliding manner, its length can be adjusted horizontally or vertically, allowing for efficient use in narrow spaces.

[0057] The entrance (112) can be fixed to the outer surface (11) of the hull (10) through the connecting part (118), and the lifting part (114) can slide along the outer surface (11) of the hull (10) through the sliding part (119).

[0058] The sliding part (119) can be configured as a roller type that slides smoothly along the outer surface (11) of the hull (10) and does not damage the outer surface (11) of the hull (10).

[0059] For example, in the case of high tide when the sea level is high, the elevator section (114) can be slid downward, thereby increasing the height between the entrance (112) and the elevator section (114). At this time, the elevator passage (110) can be positioned so that the lowest end of the elevator passage (110) is adjacent to the seawall (1) by extending the bellows structure of the body part of the frame section (116) connecting the entrance (112) and the elevator section (114).

[0060] For example, in the case of low tide when the sea level is low, the elevator section (114) can be slid upward, thereby reducing the height between the entrance (112) and the elevator section (114). At this time, the elevator passage (110) can be positioned so that the lowest end of the elevator passage (110) is adjacent to the seawall (1) without the elevator passage (110) being damaged by the wall, by shortening the bellows structure of the body part of the frame section (116) connecting the entrance (112) and the elevator section (114).

[0061] FIG. 5 is a drawing showing that the frame portion of a ship lifting device according to one embodiment of the present invention is configured as a scissor lift structure. For reference, the left drawing of FIG. 5 shows the case of high tide when the sea level is high, and the right drawing shows the case of low tide when the sea level is low.

[0062] Referring to FIG. 5, unlike the embodiment of FIG. 3, the frame portion (116) of the ship lifting device (100) according to one embodiment of the present invention may be configured as a scissor lift structure in which the frame portion (116) itself can be extended or reduced.

[0063] The entrance (112) is fixedly installed on the outer surface (11) of the hull (10), and the height of the frame part (116) can be extended or shortened when the lifting part (114) slides.

[0064] The upper part of the frame (116) can be fixedly connected to the entrance (112), and the lower part can be fixedly connected to the lifting part (114).

[0065] The frame part (116) has a body part connecting the entrance (112) and the lifting part (114) configured as a scissor lift structure, so that the height of the body part can be extended or reduced as it slides up and down by the lifting part (114) at the bottom.

[0066] The scissor lift structure is a structure in which crossed arms are intertwined, allowing it to rise or fall vertically.

[0067] The scissor lift structure can provide mechanically simple yet stable lifting and lowering.

[0068] Scissor lift structures can be designed to enable efficient vertical movement in limited spaces.

[0069] The entrance (112) can be fixed to the outer surface (11) of the hull (10) through the connecting part (118), and the lifting part (114) can slide along the outer surface (11) of the hull (10) through the sliding part (119).

[0070] The sliding part (119) can be configured as a roller type that slides smoothly along the outer surface (11) of the hull (10) and does not damage the outer surface (11) of the hull (10).

[0071] For example, in the case of high tide when the sea level is high, the elevator section (114) can be slid downward, thereby increasing the height between the entrance (112) and the elevator section (114). At this time, the elevator passage (110) can be positioned so that the lowest end of the elevator passage (110) is adjacent to the quay wall (1) by extending the scissor lift structure of the body part of the frame section (116) connecting the entrance (112) and the elevator section (114).

[0072] For example, in the case of low tide when the sea level is low, the elevator section (114) can be slid upward, thereby reducing the height between the entrance (112) and the elevator section (114). At this time, the elevator passage (110) can be positioned so that the bottom of the elevator passage (110) is adjacent to the seawall (1) without the elevator passage (110) being damaged by the wall, by shortening the scissor lift structure of the body part of the frame section (116) connecting the entrance (112) and the elevator section (114).

[0074] Although the present invention has been described above with reference to embodiments, this is merely illustrative and does not limit the invention. Those skilled in the art will understand that various combinations, modifications, and applications not exemplified in the embodiments are possible without departing from the essential technical content of the embodiments. Therefore, technical details regarding modifications and applications that can be easily derived from the embodiments of the present invention should be interpreted as being included in the present invention. Explanation of the symbols

[0075] 1: Quay wall 10: Hull 11: Lateral surface 100: Ship lifting device 110: Elevator passageway 112: Entrance 114: Elevator 116: Frame section 118: Connection 119: Sliding part 120: Elevator platform

Claims

Claim 1 A ship lifting device comprising: a lifting passage installed to be slidable along the outer surface of the hull; and a lifting platform that is raised and lowered within the lifting passage; wherein the lifting passage comprises: an entrance positioned adjacent to a workspace provided in the hull; and a lifting section positioned below the entrance, adjacent to a quay wall where the hull is berthed, which slides in an up-and-down direction in response to changes in sea level height due to tides, thereby allowing the lower end of the lifting passage to slide along the outer surface of the hull. Claim 2 A ship lifting device according to claim 1, wherein the lifting passage further comprises a frame portion in which the lifting platform is raised and lowered inside and at least a portion of which slides along the outer surface of the hull, and wherein the frame portion is supported or slides along the outer surface of the hull by at least one of the entrance and the lifting portion. Claim 3 A ship lifting device according to paragraph 2, wherein the lifting passage is positioned so that its lower end is adjacent to the quay wall, and when the height of the sea level changes due to tides, the lifting part slides to maintain the lower end adjacent to the quay wall. Claim 4 In paragraph 3, the lifting platform is raised and lowered along the lifting passage, thereby transporting work materials or workers from the quay adjacent to the lower end of the lifting passage to the workspace of the hull, a lifting device for a ship. Claim 5 In paragraph 2, the above-mentioned frame portion is slidably coupled to the above-mentioned entrance and the lower end is fixedly coupled to the above-mentioned lifting portion, forming a ship lifting device. Claim 6 A ship lifting device according to claim 5, wherein the entrance is fixed to the outer surface of the hull, and the frame portion slides relative to the entrance when the lifting portion slides. Claim 7 In paragraph 2, the above-described frame portion is a ship lifting device in which the upper end is fixedly connected to the above-described door and the lower end is fixedly connected to the above-described lifting portion. Claim 8 A ship lifting device according to claim 7, wherein the entrance is fixed to the outer surface of the hull, and the frame portion is extended or shortened in height when the lifting portion slides.

Images