KR101725373B1 - Bridge of platform for building a ship and structure for passing to the side-opening - Google Patents

Abstract

The present invention relates to a bridge for a ship's platform for the construction of a ship capable of safely passing between a side opening of a ship dried in the sea and a dry pier and a stable structure even when the height of the sea surface changes, and a side- A ramp connected to a platform installed on a dry vessel via a first rotating table capable of rotating up and down and left and right; A moving path connected to the ramp via a second rotating table capable of rotating up and down and left and right; And a guide rail installed on the dry dock to guide movement of the moving path.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a side opening structure for a ship,

The present invention relates to a side opening of a side opening of a ship, which is equipped with a passage bridge for a ship to dry the vessel, which can safely pass between the open side of the vessel and the drying pier and maintain a stable structure even when the sea level changes. will be.

As is well known, shipbuilding largely proceeds in the order of shipbuilding, shipbuilding and shipbuilding. Therefore, when some or all assembly of the ship block is completed, the ship interior equipment and various interior materials are constructed.

On the other hand, when the assembly of the ship block is completed, the dry ship is floated to the sea and the subsequent drying operation is carried out. Therefore, the operator had to go out from the dry dock to the dry vessel and carry various materials for the internal facilities. Especially, if the ship to be constructed is LNG carrier, frequent entry and exit of workers and various thermal insulation materials are required for thermal insulation treatment of the inner wall of LNG tank installed in the ship. For this purpose, a side opening is temporarily formed on the side wall of the dry vessel so that the operator and the material can be easily inserted and removed through the point.

The dry ship floating on the sea shall be firmly fixed to the dry dock to maintain its present position. However, if the dry vessel comes into contact with the wall of the dry dock, the dry vessel itself may be damaged. Therefore, the distance between the dry vessel and the dry dock should be kept constant. Therefore, a platform connecting the dry vessel and the dry dock and a passage structure were installed so that the operator could enter and exit through the side openings even at intervals between the dry vessel and the dry vessel.

The conventional platform will be described with reference to Fig. 1 (an image showing the installation of the conventional platform).

Generally, a side opening is provided with a platform for accessing workers and materials, and a bridge for direct connection with a dry dock. Operators can enter the side openings from the dry docks via bridges, and can transport various materials from the dry docks to the side openings using a platform or other crane.

Such conventional passive structures with fixed bridges and platforms are required for shipbuilding and are widely used in shipbuilding processes.

On the other hand, the flow of currents is also small in regions where there is little difference in tidal currents, such as the East Sea of Korea, so that conventional fixed passage structures have been widely used. This is because the height difference between the side openings and the dry pier is almost constant because there is little change in the water level in the East Sea, and the bridge position at the dry pier can maintain a constant point at all times. However, in areas such as the Yellow Sea or the South Sea in Korea where the tide difference is relatively severe and the currents and winds change widely, the collision between the passive structures including the bridge and the dry dock has been frequent and the bridge is also located at the dry dock It was not possible to keep it, and the location change had to be frequent. In fact, in some areas of the South Sea, the difference in altitude between the ships is 6 ~ 8 m due to the change of tide. In this marine environment, the passing structure with the fixed bridge and the platform in the sea collides with the wall of the dry dock due to the change in water level. The damage was frequent.

Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a bridge for connecting a platform and a dry dock, The present invention aims at solving the provision of a passage structure for a side opening with a bridge for a platform for building a ship that can ensure the safety of the operator.

According to an aspect of the present invention,

A ramp connected to a platform installed on a dry vessel through a first rotating table capable of rotating up and down and left and right;

A moving path connected to the ramp via a second rotating table capable of rotating up and down and left and right;

A guide rail installed on the dry dock to guide movement of the moving path;

Which is a bridge for a ship-building platform.

According to another aspect of the present invention,

A base platform installed on a dry vessel;

A ramp connected to the base platform via a first rotating table capable of rotating up and down and left and right;

A moving path connected to the ramp via a second rotating table capable of rotating up and down and left and right;

A guide rail installed on the dry dock to guide movement of the moving path;

A rotating platform installed on the base platform so as to be vertically rotatable; And

A supporter installed on the foundation platform and supporting a support wire connected to a front end of the rotation platform so as to maintain the rotation platform in a horizontal posture;

Which is a side opening opening.

In the present invention, the traveling path moves along the guide rail every time the drying vessel moves according to the change in the water level due to the change in fresh water and the movement of the ocean current and wind, and the ramp rotates up and down, Can easily pass from a dry dock to a dry vessel even if the position of the dry vessel is changed.

In addition, since the worker does not need to disassemble or install the bridge even in the movement of the dried vessel, the workload on the ship can be reduced.

In addition, there is also an effect of preventing the occurrence of safety accidents such as collapse of the operator during passage of the operator by preventing damage due to twisting of the bridge to the movement of the dry ship due to seawater change and keeping the installation structure stable.

1 is an image showing a mounting state of a conventional platform,
FIG. 2 is a side view showing a state where a bridge according to the present invention is installed on a platform,
3 is a front view showing a state where a ramp of a bridge according to the present invention is installed on a platform,
Fig. 4 is a plan view of Fig. 3,
5 is a view showing a state of a swivel according to the present invention,
6 is a front view showing a state in which a ramp of a bridge according to the present invention is installed in a traveling path,
7 is a plan view showing a state in which a traveling path is seated on a guide rail according to the present invention,
FIG. 8 is a side view showing a state in which the moving path according to the present invention is seated on the guide rail,
9 is a side view showing a platform according to the present invention installed on a dry ship,
FIG. 10 is a side view of a platform according to the present invention,
11 is a front view showing a platform according to the present invention installed on a dry ship,
12 is a side view showing a folded state of the platform according to the present invention,
13 is a side view showing a use state of the platform according to a change in water level,
FIG. 14 is a side view showing a state in which a strut according to the present invention is detachably attached to a stopper.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It will be possible. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a side view illustrating a bridge according to the present invention installed on a platform. Referring to FIG.

The bridge 200 according to the present invention is installed in a platform installed on a drying vessel 10 so that an operator can enter and leave the side opening 20 via the platform of the drying vessel 10 from the side wall 20 of the drying vessel A ramp 210 connected to the base platform 110 via a ramp 210 and a moving path 220 connected to the base platform 110 via a ramp And a guide rail 230 installed at both ends of the ramp 210 for rotatably connecting to the base platform 110 and the traveling path 220 , 240 '(see Figures 3 and 5).

The worker must first enter the base platform 110 spaced upward from the dry dock in order to enter and leave the side openings of the dry vessel 10. [ To do so, the operator must ascend to the foundation platform 110, which requires a ladder or slope connecting the foundation platform 110 and the dry dock. The slope 210 corresponds to the ladder or slope, and connects the foundation platform 110 and the dry dock.

The moving path 220 connects the ramp 210 with the dry dock so that the entrance of the ramp 210 connected to the drying pier always touches the drying pier and the operator can enter and exit the ramp 210 through the moving path 220 do.

The guide rail 230 guides the traveling path 220 to move only in a certain direction from the drying dock.

Each of the structures of the bridge 200 according to the present invention will be described in more detail with reference to the drawings.

For reference, a stopper 140 in the form of an entrance or exit may be formed in an entry section of the base platform 110 through which the ramp 210 passes, and a detailed description thereof will be given below. In addition, a temporary door D for opening and closing can be provided in the side opening.

FIG. 3 is a front view of a bridge of the present invention installed on a platform, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a view showing a state of a swivel according to the present invention. do.

The ramp 210 of the present embodiment includes a first base 211, a first fence 212 extending along the edge of the tilting base 211, a rotation hook 213 provided at both ends of the first base 211, , 213 '(see FIG. 5).

The first base 211 is formed in a flat plate shape for an operator to walk, and is formed to have a length sufficient to connect the foundation platform 110 and the dry dock.

The first fence 212 preferably prevents the operator from leaving the first base 211 while passing through the first base 211. The first fence 212 preferably has a length corresponding to the length of the first base 211.

The rotation hooks 213 and 213 'are formed at both ends so as to protrude from the rotation platform 240 installed on the base platform 110 and to the rotation platform 240' installed on the movement path 220, respectively. In this embodiment, the rotation hooks 213 and 213 'are in the form of a detachable ring, but the present invention is not limited thereto, and various modifications may be made within the scope of the following description if the hinges are rotatable with the rotation tables 240 and 240' . However, if the ramp 210 rotates beyond its effective range and there is a risk of breakage, it is desirable that the operator is in the form of a collar that can be quickly dismantled and reinstalled in the field.

The rotating platform 240 for rotatably connecting the base platform 110 and the ramp 210 includes a fixed portion 241 connected to the base platform 110 and a horizontal shaft 243 engaged with the rotating hook 213 And a vertical shaft 244 rotatably connecting the fixed portion 241 and the rotary portion 242. The vertical shaft 244 rotatably connects the fixed portion 241 and the rotary portion 242, And a protective cover 245 that covers the fixing portion 241 and the turning portion 242 together to prevent a safety accident such as slipping or pinching due to the horizontal rotation of the turning portion 242. The ramp 210 is connected to the base platform 110 so as to be horizontally rotatable with respect to the vertical axis 244 of the swivel base 240 and also connected to the horizontal platform 243 formed at one end of the swivel base 240 And is connected to the base platform 110 so as to be vertically rotatable.

For reference, the swivel rods 240 and 240 'may reinforce a separate cover (not shown) for covering the fixed portion 241 and the swivel portion 242, respectively, in addition to the protective cover 245 for safe walking of the operator. The cover prevents the connecting portions of the fixing portion 241 and the turning portion 242 from being exposed to the outside, thereby preventing the risk of the foot being caught or caught by the operator when the operator goes through the connecting portion.

As described above, even if the drying vessel 10 moves upward or downward or horizontally with respect to the drying dock by the change of the height of the sea level or by the sea current, wind or the like, the slope 210 connected to the drying dock So that the connection with the base platform 110 can be stably maintained irrespective of the forward, backward, leftward, or upward or downward movement.

FIG. 6 is a front view showing a state where a ramp of a bridge according to the present invention is installed in a traveling path, FIG. 7 is a plan view showing a state in which a traveling path according to the present invention is seated on a guide rail, FIG. 3 is a side view showing a state in which a traveling path along which the guide rail is mounted is mounted on a guide rail.

The traveling path 220 of this embodiment is rotatably connected to the ramp 210 via a swivel 240 '. As described above, the moving path 220 allows the slope 210 to always be positioned in the designated area of the dry dock. To this end, the moving path 220 includes a second base 221 in the form of a flat plate for an operator to walk, And a wheel 223 that rolls along the guide rail 230 while supporting the second base 221. The second fence 222 includes a first fence 222 and a second fence 222,

The second base 221 is connected to the first base 211 of the ramp 210 so that the operator who enters the moving path 220 from the drying pier directly enters the ramp 210 connected via the swivel 240 ' can do. The second base 221 has a separate section protruding laterally from the guide rail 230 for connection with the ramp 210. Since the bridge according to the present invention is installed to freely pass through the dry dock and the drying vessel 10, the separate section is formed to protrude in the sea water direction.

The second fence 222 is formed along the edge of the second base 221 in order to prevent an operator from moving away from the second base 221. The second fence 222 is provided along the edge of the second base 221, Section is excluded from the installation section of the second fence 222.

The wheel 223 is installed on the bottom surface of the second base 221 to allow the traveling path 220 to move only in a predetermined direction and a range along the guide rail 230. Generally, the guide rail 230 includes a line 231, which is wired parallel to each other like a railway, and the wheel 223 is mounted on the rail 231 to guide the movement of the rail 220 while rolling . In this embodiment, the wheels 223 are arranged in such a manner that the pairs of the wheels 223 are symmetrical with respect to each other with respect to one line 231 and the both sides of the line 231 are engaged with each other so that the traveling path 220 is separated from the guide rail 230 It is possible to apply a structure in which the wheel 223 simply seats the line 231 like a general train.

The guide rail 230 includes a line 231 to which the wheel 223 of the traveling path 220 is engaged and rolls and an anchor 232 for supporting the line 231. The line 231 is made of a material having sufficient rigidity to support the loads of the traveling path 220 and the ramp 210, and is preferably made of a metal material such as steel. The pair of lines 231 are arranged in parallel with each other at a constant interval. The anchor 232 allows the line 231 to sustain the movement of the traveling path 220 and the ramp 20 while keeping the line 231 in place. In this embodiment, the anchor 232 may be a concrete structure that supports the base portion of the line 231, or may be a fixing member such as a pin for directly fixing the line 231 to the dry dock.

As shown in FIG. 7, each time the bridge 200 according to the present invention moves the drying vessel 10 in accordance with a change in the water level due to a change in fresh water and a direction of currents and winds, the moving path 220 moves along the guide rails 230 And the slope 210 is rotated up and down and left and right with respect to the swivel rods 240 and 240 'so that the operator can easily move from the drying pier to the drying vessel 10 even when the position of the drying vessel 10 is changed . In addition, since the worker does not need to dismantle or install the bridge 200 in the movement of the dried vessel 10, it is possible to reduce the workload on the ship.

Although the bridge 200 is installed on only one side of the platform in this embodiment, it may be installed on both sides of the platform.

FIG. 9 is a side view showing a platform according to the present invention installed on a dry ship, and will be described with reference to FIG.

The platform according to the present invention includes a foundation platform 110 fixed to a dry vessel 10, a rotation platform 120 rotatably installed on the foundation platform 110, A stopper 140 installed on the base platform 110 and supporting the completely folded rotation platform 120 and a support wire 151 for supporting the unfolded rotation platform 120. [ And may further include a supporter 150 for supporting the supporter.

As described in the conventional platform, a platform installed to horizontally protrude from the side openings of the drying vessel 10 for entering and exiting the worker and the material often collides with the seawall 20 of the dry dock depending on the change in the height of the sea level . Accordingly, the platform according to the present invention includes a rotating platform 120 that can be temporarily folded and fixed so that the platform does not contact the sidewall 20 before the height of the sea level is lowered. However, since the operator passes through the bridge 100 installed on the side of the platform, the entire platform rotates, which makes it difficult to install the bridge. Accordingly, the platform according to the present invention includes the base platform 110 fixed to the dry vessel 10, and the rotation platform 120 is rotatably installed thereon. A more detailed description of this will be given while explaining each configuration of the platform.

The foundation platform 110 is installed in the side opening of the drying vessel 10 so that the bridge 200 can be installed on the side of the foundation platform 110. Here, the upper end of the bridge 200 is installed on the side of the foundation platform 110, and the lower end of the bridge 200 is installed on the dry dock. Accordingly, the operator of the dry dock enters the base platform 110 through the bridge 200 and enters and exits the side off-net, and the operator of the side opening or the rotation platform 120 enters the dry dock via the bridge 200 . For reference, the base platform 110 is a section through which the operator first enters through the bridge 200, so that the folded rotation platform 120 is unfolded or folded while the rotating platform 120 is being separated from the base platform The stopper 140 is reinforced so as not to cover the worker who passes through the stopper 140. [

The rotating platform 120 is rotatably installed above and below the top of the base platform 110. To this end, the base platform 110 and the rotating platform 120 are connected via a platform hinge 121 along a connection line. Meanwhile, since the rotary platform 120 rotates in a horizontal or upward standing position, it is preferable that the rotary platform 120 is restricted from rotating in a horizontal posture downward. Therefore, the beam for preventing the downward rotation can be reinforced. Since the rotary platform 120 is a place where various materials are transferred by the crane and are temporarily placed, the rotary platform 120 has a relatively large area as compared with the foundation platform 110, but is not limited thereto.

The fence 130 is installed along the edge to prevent an operator or material located on the rotating platform 120 from falling out due to carelessness. The fence 130 for this purpose includes struts 131 and 132 arranged in a line along the side edges of the rotary platform 120 and one or more horizontal members 133 arranged horizontally along the struts 131 and 132 . The struts 131 and 132 are installed to be rotatable via the support hinges 131a and 132a so as not to interfere with the stopper 140 or the like during the folding process and the horizontal member 133 also rotates along the struts 131 and 132 And is installed in the pillars 131 and 132 via the horizontal hinge 132b. In the present embodiment, the end of the horizontal member 133 is rotatably installed on the stopper 140 via the horizontal member hinge 141. However, the horizontal member 133 may be reinforced by the horizontal member 133 May not be connected to the stopper 140. For the sake of reference, in the present embodiment, two struts 131 and 132 are formed along one side face and two horizontal members are formed along one side face. However, the present invention is not limited to this, .

The stopper 140 is installed on the foundation platform 110 to temporarily fix the completely folded rotary platform 120 or to protect the fully folded rotary platform 120 from covering the operator passing through the foundation platform 110. To this end, the stopper 140 is installed at a boundary portion between the base platform 110 and the rotating platform 120. Since the stopper 140 is installed in a section where a worker is passing through, the stopper 140 can be formed in a door shape as in the present embodiment, and the cover can be covered on the top surface to prevent falling of various materials. Meanwhile, in this embodiment, the stopper 140 has a fixing bracket 142 for holding the folded rotation platform 120 in a folded state. A more detailed description of the fixing bracket 142 will be given in detail while explaining the operation of the platform according to the present invention.

The supporter 150 supports the horizontally disposed rotary platform 120. As described above, since the rotary platform 120 is required to seat various materials of a predetermined weight, the rotary platform 120 arranged horizontally should be able to stably maintain its posture. The supporter 150 is installed on the foundation platform 110 to connect the upper end of the supporter 150 and the front end of the rotation platform 120 with the support wire 151. [ Thus, the support wire 151 wired diagonally supports the rotary platform 120 on the basis of the supporter 150, and stably places a predetermined weight of material or the like on the rotary platform 120.

11 is a front view showing a platform according to the present invention installed on a dry vessel, FIG. 12 is a side view showing a state where the platform according to the present invention is folded Which will be described with reference to FIG.

1. Confirmation of water level change

The operator determines whether the rotation platform 120 is folded by checking the time when the height of the sea surface is lowered.

In Korea, since the tide change is twice per day, the rotation platform 120 also repeats the folding operation twice a day.

2. Preparing for Rotating Platform Folding

The operator prepares a crane (not shown) for pulling the rotary platform 120 for folding the rotary platform 120. Generally, the crane is installed on the upper side of the side opening, and various materials and the like provided on the drying dock are transported to the rotary platform 120. The rotary platform 120 is also rotated upward by using the crane.

Subsequently, the worker lowers the hook H of the crane and hooks it to the front end of the rotary platform 120 to connect. In the present embodiment, a wire for fence 134, which performs a function of a fence along the edge, is provided on the front end of the rotary platform 120. The hook H is hooked to the wire 134 for fence. For reference, the fence wire 134 can prevent the worker or the material located on the rotary platform 120 from escaping to the outside, and can also disassemble the fence wire 134 as needed, have. Here, the fence wire 134 is connected at both ends to the struts 132 and 132 'which are inserted into both side edges of the rotary platform 120.

The connection with the rotary platform 120 using the hook H may be via the fence wire 134, but it is also possible to construct a ring or the like directly through the body of the rotary platform 120 to mediate the ring.

In the present embodiment, the pillars 131 and 132 of the fence 130 are formed so as to protrude toward the base platform 110 so that the protrusions S protrude from the base platform 110 of the pillars 131 and 132 ) To prevent tilting. When the rotary platform 120 is in a horizontal posture, the protrusions S are fixed to the rotary platform 120 via pins or the like so that the pillars 131 and 132 are not inclined. For this purpose, a hole 131b is formed in the protrusion S and a bracket (not shown) having a hole communicating with the hole 131b is formed in the rotation platform 120 corresponding thereto. As a result, when the rotary platform 120 is in a horizontal posture, the holes communicate with each other, thereby fixing the pins through the holes, thereby preventing the pillars 131 and 132 from tilting. As a result, when the pillars 131 and 132 are fixed to the rotary platform 120 via the pins as in the present embodiment, the pins are removed before the rotary platform 120 is rotated.

3. Rotating Platform Rotation

The rotary platform 120 is rotated upward in the order of FIGS. 10 (a) and 10 (b) utilizing the power of the crane. The rotating platform 120 rotates about the platform hinge 121 due to the power of the crane.

The horizontal member 133 whose distal end is connected to the stopper 140 via the horizontal member hinge 141 is automatically rotated around a rotation axis at a position different from the rotation axis of the platform hinge 121. [ Therefore, as the rotation angle of the rotation platform 120 increases, the distance between the horizontal channel 133 and the rotation platform 120 is narrowed. When the rotation platform 120 is completely folded as shown in FIG. 12, (120) has a slim structure. That is, in the platform according to the present invention, the fence 130 protruding upward to protect the worker and the material located on the rotating platform 120 can be completely folded and temporarily fixed without any interference when the rotating platform 120 is folded. It is. Since the lower ends of the struts 131 and 132 that guide the at least one horizontal member 133 are rotatably installed on the rotary platform 120 via the support hinges 131a and 132a, The variation of the horizontal member 133 can be stably guided.

4. Rotational platform temporary fix

12, since the fixing bracket 142 is disposed at a position to communicate with the hole 131b formed in the protrusion S when the rotary platform 120 is completely folded, And is inserted into the hole of the fixing bracket 142 to temporarily fix the rotary platform 120 to the stopper 140. [ The fixed rotating platform 120 is kept in the folded state.

On the other hand, the hook H of the crane is disassembled.

Thereafter, when the height of the sea surface becomes high and the rotating platform 120 does not contact the seam 20 of the dry dock, the rotating platform 120 is moved horizontally in the reverse direction of the above-described process.

FIG. 13 is a side view showing the use of the platform according to a change in water level, and will be described with reference to FIG.

As shown in FIG. 13 (a), when the height of the sea surface is increased and work can be performed through the rotary platform 120, the rotary platform 120 is arranged in a horizontal posture, The rotation platform 120 is folded so that there is no contact between the rotation platform 120 and the sidewall 20 when there is a possibility that the rotation platform 120 is in contact with the sidewall 20 as the sea level becomes lower.

FIG. 14 is a side view showing a state in which a strut according to the present invention is attached to and detached from a stopper.

As described above, since the support 131 according to the present invention is temporarily fixed to the stopper 140 via the pin, the rotation platform 120 can be kept in a folded state.

In addition, in this embodiment, the projecting portion S 'of the strut 131 forms a hinge groove 131b' inclined toward the stopper 140 so that the operator can temporarily fix and separate the rotary platform 120 The fixing bracket 142 'of the stopper 140 includes a guide groove 142a which is inclined and parallel to the hinge groove 131b' and a hook 142b which moves along the guide groove 142a, And a hanger spring 142c that elastically biases the hanger 142b so that it is always positioned at the upper end of the guide groove 142a.

14 (a), when the projecting portion S 'of the strut 131 abuts on the hook 142b in the vicinity of the fixing bracket 141' of the stopper 140, as shown in Fig. 14 (a) As shown in the drawing, the hanger 142b receives the pressure of the protrusion S 'and moves downward along the guide groove 142a. The hanger 142b is moved downward by the hanger spring 142c as shown in FIG. 14 (c) And is engaged with the hinge groove 131b 'of the protruding portion S'.

On the other hand, when the operator forcibly lowers the hanger 142b as shown in FIG. 14 (d) to unfold the rotary platform 120 again, the protrusion S 'is disengaged from the hanger 142b, The rotation platform 120 is detached from the stopper 140 while the fixing force is lost.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10; Dry vessel 20; A quay wall 110; Foundation platform
120; A rotating platform 121; Platform hinge 130; Fence
131, 132; 133; A horizontal member 134; Wire for fencing
140; Stopper 141; A horizontal hinge 142; Retaining bracket
150; A supporter 151; Supporting wire 200; bridge
210; Ramp 220; A moving path 230; Guide rail
240, 240 '; Swivel

Claims (5)

A base platform installed on a dry vessel; A ramp connected to the base platform via a first rotating table capable of rotating up and down and left and right; A moving path connected to the ramp via a second rotating table capable of rotating up and down and left and right; A guide rail installed on the dry dock to guide movement of the moving path; A rotating platform installed on the base platform so as to be vertically rotatable; And a supporter installed on the base platform and supporting a supporting wire connected to a front end of the rotating platform so as to maintain the rotating platform in a horizontal posture,
A stopper installed on the base platform; A fence rotatably installed along a side edge of the rotary platform and a horizontal member rotatably connected to the support and having a distal end rotatably connected to the stopper,
Wherein the strut has a protruding portion protruding in the direction of the base platform and forming a hinge groove inclined in the direction of the stopper;
The stopper includes a guide groove which is inclined in parallel with the hinge groove and which is formed to be bent at an upper end, a hook which moves along the guide groove and into which the hinge groove is inserted and removed, and a hook fixed to the hook, With brackets;
Wherein the side opening opening is formed in the side opening. The method according to claim 1,
The first and second rotating platforms include a fixed portion, a rotating portion, a horizontal axis formed at one end of the rotating portion, and a vertical axis for rotatably connecting the fixed portion and the rotating portion;
Wherein a rotation hook is formed at both ends of the ramp so as to be rotatably engaged with the horizontal axis of the first and second rotation centers. The method according to claim 1,
Wherein the guide rail includes a line installed at a dry dock;
Wherein the traveling path includes a wheel that rolls along the longitudinal direction in engagement with the track. The method of claim 3,
And the pair of wheels are adapted to rotate on both side surfaces of the line, respectively. delete

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