Shore ship ladder

Abstract

According to the technical scheme, the shore ship ladder comprises a rail, a sliding table, a support, a walking bridge and a movable platform, the rail is fixed to the shore side, the sliding table is slidably connected to the rail, the support is rotationally arranged on the sliding table, the walking bridge is arranged on the sliding table, and the movable platform is arranged on the sliding table. The walking bridge comprises a first bridge body and a second bridge body which are sequentially hinged, the end, away from the second bridge body, of the first bridge body is hinged to the support, the end, away from the first bridge body, of the second bridge body is hinged to the movable platform, and the movable platform is used for being placed on a deck.

Description

Technical Field

[0001] The present invention belongs to the technical field of ship mooring, and more specifically, relates to a shore-to-ship ladder. Background Art

[0002] When a tugboat is moored at a port, a ladder needs to be set up between the tugboat and the shore to facilitate the passage of personnel.

[0003] The first ladders were fixed to the shore. The ladders did not need to be moved frequently. They only needed to be moved close to the tugboat when it docked. However, in practice, due to the influence of tides, the tugboat deck would fluctuate, and would also be driven by ocean currents and winds to move forward and backward. Fixed ladders were not applicable and were eliminated. If a straight ladder was welded directly on the vertical surface of the dock, it would easily be crushed and deformed when the tugboat docked or left the berth.

[0004] Later, a boarding board was used, with one end of the boarding board mounted on the side wall of the tugboat and the other end on the shore. The ups and downs of the tugboat only affected the tilt angle of the boarding board, and people could still pass through. However, the boarding board had no protection measures. If the tugboat moved too much at once, it would easily pull the boarding board, causing it to fall or be damaged. In addition, the boarding board required two people to carry it, which was inconvenient to operate. Therefore, the existing shore-to-ship ladder was not practical and safe enough. Summary of the invention

[0005] The main purpose of the present invention is to provide a shore-to-ship ladder, which is designed to be able to adjust with the tide and improve the safety of boarding and disembarking.

[0006] According to a first aspect of the present invention, there is provided a shore-to-ship ladder comprising a track, a slide, a bracket, a walking bridge and a mobile platform, wherein the track is fixed to the shore, the slide is slidably connected to the track, the bracket is rotatably arranged on the slide, the walking bridge comprises a first bridge body and a second bridge body hinged in sequence, an end of the first bridge body away from the second bridge body is hinged to the bracket, an end of the second bridge body away from the first bridge body is hinged to the mobile platform, and the mobile platform is used to be placed on the deck.

[0007] In the above-mentioned shore-to-ship ladder, elastic cables are provided on both sides of the first bridge body, and the elastic cables connect the first bridge body and the bracket.

[0008] In the above-mentioned shore-to-ship ladder, the bracket includes a base plate, a front frame body and a rear frame body fixed on the base plate, the front frame body and the rear frame body are arranged at intervals, the first bridge body is hinged to the base plate, the front frame body is located on the side of the base plate close to the first bridge body, and the elastic cable is connected to the front frame body.

[0009] In the above-mentioned shore-to-ship ladder, steel cables are provided on both sides of the second bridge body, and the bracket is provided with a winding mechanism. The two steel cables are respectively connected to the winding mechanisms, and the winding mechanism winds or releases the steel cables to retract or lower the walking bridge.

[0010] In the above-mentioned shore-to-ship ladder, the winding mechanism comprises a winding drum and a guide structure, the guide structures are two and correspond to the two steel cables, and the winding drum is arranged on a side of the rear frame away from the front frame;

[0011] The axis of the winding drum is arranged horizontally, and a mounting seat is provided on the rear frame. Two positioning holes are arranged on the mounting seat at intervals along the axial direction of the winding drum. The positioning holes are located above the winding drum. The two positioning holes correspond to the two steel cables. After passing through the guide structure, the steel cables pass through the positioning holes and are wound onto the winding drum.

[0012] In the above-mentioned shore-to-ship ladder, the guide structure includes a first pulley arranged on the top of the front frame, a second pulley arranged on the top of the rear frame, a third pulley and a fourth pulley arranged on the side of the rear frame away from the front frame, the fourth pulley is located on the side of the third pulley close to the mounting seat and above the positioning hole, and the steel cable passes through the positioning hole after passing around the first pulley, the second pulley, the third pulley and the fourth pulley in sequence.

[0013] In the above-mentioned shore-to-ship ladder, the mounting seat includes a fixed plate fixed on the rear frame, and two side plates are arranged on the fixed plate at intervals along the axial direction of the winding drum. The two side plates are connected by a connecting rod, and a roller body is arranged between the connecting rod and the fixed plate, and the roller body separates the two positioning holes between the two side plates.

[0014] In the above-mentioned shore-to-ship ladder, the movable platform includes a plate body and a plurality of universal wheels arranged at the bottom of the plate body, and the plate body is hinged to the second bridge body.

[0015] In the above-mentioned shore-to-ship ladder, guardrails are provided on both sides of the first bridge body and the second bridge body.

[0016] In the above-mentioned shore-to-ship ladder, the length of the first bridge body is greater than the length of the second bridge body.

[0017] One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

[0018] In the present invention, since the slide can be moved and the first bridge body and the second bridge body can be rotated, the first bridge body and the second bridge body can change their inclination angles. When the tide drives the tugboat to rise and fall or move, the tugboat will drive the first bridge body and the second bridge body to change their inclination angles, thereby adapting to the distance between the tugboat and the shore and the height of the tugboat, ensuring that the first bridge body and the second bridge body can stably connect the shore and the tugboat, and providing better safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0020] Figure 1 is a front view of the first embodiment of the present invention when the shore is higher than the tugboat deck;

[0021] Figure 2 The first embodiment of the present invention Figure 1 A partial enlarged view of A;

[0022] Figure 3 is a front view of the first embodiment of the present invention when the shore is lower than the tugboat deck;

[0023] Figure 4 It is a right side view of the bracket according to the first embodiment of the present invention.

[0024] Among them, the reference numerals of the figures are:

[0025] 1. Track; 2. Slide; 3. Bracket; 31. Bottom plate; 32. Front frame; 33. Rear frame; 4. Walking bridge; 41. First bridge body; 42. Second bridge body; 411. Arc block; 421. Pad block; 5. Mobile platform; 6. Elastic rope; 7. Steel cable; 8. Winding mechanism; 81. Winding drum; 82. First pulley; 83. Second pulley; 84. Third pulley; 85. Fourth pulley; 9. Mounting seat; 91. Fixed plate; 92. Side plate; 93. Connecting rod; 94. Roller body; 10. Guardrail. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0028] Reference Figures 1 to 4As shown, a shore-to-ship ladder comprises a track 1, a slide 2, a bracket 3, a walking bridge 4 and a mobile platform 5, wherein the track 1 is fixed to the shore, the slide 2 is slidably connected to the track 1, the bracket 3 is rotatably arranged on the slide 2, the walking bridge 4 comprises a first bridge body 41 and a second bridge body 42 which are hinged in sequence, an end of the first bridge body 41 away from the second bridge body 42 is hinged to the bracket 3, and an end of the second bridge body 42 away from the first bridge body 41 is hinged to the mobile platform 5;

[0029] The mobile platform 5 is used to be placed on the deck of the tugboat. Relying on the connection of the walking bridge 4, a passage is constructed between the tugboat and the shore. People can travel between the tugboat and the shore through the walking bridge 4. When there is a tide, the tugboat will rise and fall and move. At this time, the mobile platform 5 and the slide 2 can be moved. In addition, the first bridge body 41 and the second bridge body 42 can rotate, so the walking bridge 4 can be stably erected between the tugboat and the shore.

[0030] An arc block 411 is fixed to one end of the bridge deck of the first bridge body 41 close to the second bridge body 42. There are two arc blocks 411 located on both sides of the first bridge body 41. Pads 421 corresponding to the arc blocks 411 are arranged on the bridge deck of the second bridge body 42. When the bridge deck of the first bridge body 41 is flush with the bridge deck of the second bridge body 42, the arc block 411 will contact the pad 421, and the arc block 411 will press on the pad 421 to prevent the connection between the first bridge body 41 and the second bridge body 42 from being concave. Specifically, when the deck of the tugboat When the bridge deck of the first bridge body 41 is lower than the shore, the bridge deck of the second bridge body 42 can be flush, and the arc block 411 can be pressed on the pad 421 to avoid the concave connection between the first bridge body 41 and the second bridge body 42, so as to facilitate the passage of personnel. When the deck of the tugboat is higher than the shore, the bridge deck of the first bridge body 41 and the bridge deck of the second bridge body 42 will not be flush, and the arc block 411 will not be pressed on the pad 421. The connection between the first bridge body 41 and the second bridge body 42 is convex, and the walking bridge 4 is in an upwardly convex bending state;

[0031] The hinge axis of the first bridge body 41 and the second bridge body 42 is parallel to the axis of the arc block 411, so that the arc block 411 has better strength and is not easy to be dented when supporting the first bridge body 41 and the second bridge body 42 to be flush.

[0032] In this embodiment, the bracket 3 includes a bottom plate 31, a front frame body 32 and a rear frame body 33 fixed on the bottom plate 31, the front frame body 32 and the rear frame body 33 are arranged at intervals, the first bridge body 41 is hinged to the bottom plate 31, the front frame body 32 is located on the side of the bottom plate 31 close to the first bridge body 41, and a space for people to stand is formed between the front frame body 32 and the rear frame body 33, and people can stand in the space first, and then walk on the walking bridge 4;

[0033] Elastic cables 6 are provided on both sides of the first bridge body 41, and the elastic cables 6 connect the first bridge body 41 and the front frame body 32. The elastic force of the elastic cables 6 is smaller than the gravity of the first bridge body 41, so the elastic cables 6 will not pull up the first bridge body 41. However, when people pass through the first bridge body 41, the elastic cables 6 will provide a buffer for the first bridge body 41, and the stability is better when passing through.

[0034] The elastic rope 6 can be formed by connecting a spring and a steel cable, and the elastic force is generated by the spring.

[0035] In this embodiment, steel cables 7 are provided on both sides of the second bridge body 42, and the bracket 3 is provided with a reeling mechanism 8. The two steel cables 7 are respectively connected to the reeling mechanism 8. The reeling mechanism 8 reels or releases the steel cables 7 to retract or lower the walking bridge 4.

[0036] When the tugboat is about to leave, the walking bridge 4 needs to be folded up. At this time, the winding mechanism 8 can be used to wind up the steel cable 7, thereby raising the second bridge body 42 and allowing the mobile platform 5 to leave the deck of the tugboat; when a tugboat is moored, the winding mechanism 8 can be used to release the steel cable 7 and allow the mobile platform 5 to be placed on the deck of the tugboat.

[0037] Specifically, the winding mechanism 8 includes a winding drum 81 and a guide structure. The guide structures are two and correspond to the two steel cables 7. The winding drum 81 is arranged on a side of the rear frame 33 away from the front frame 32.

[0038] The axis of the winding drum 81 is arranged horizontally, and a mounting seat 9 is provided on the rear frame 33. Two positioning holes are arranged on the mounting seat 9 along the axial direction of the winding drum 81 at intervals. The positioning holes are located above the winding drum 81. The two positioning holes correspond to the two steel cables 7. The steel cables 7 pass through the positioning holes after passing through the guide structure and are wound onto the winding drum 81.

[0039] The guide structure can assist the movement of the steel cable 7 and change the direction of the steel cable 7 to ensure that the steel cable 7 can be reeled onto the reel 81. At the same time, based on this structure, one reel 81 can be used to reel in the steel cables 7 on both sides, which is more convenient to operate and does not require two people to operate.

[0040] In this embodiment, the guide structure includes a first pulley 82 arranged at the top of the front frame body 32, a second pulley 83 arranged at the top of the rear frame body 33, a third pulley 84 and a fourth pulley 85 arranged on the side of the rear frame body 33 away from the front frame body 32, and the fourth pulley 85 is located on the side of the third pulley 84 close to the mounting seat 9 and above the positioning hole. The steel cable 7 passes through the positioning hole after passing through the first pulley 82, the second pulley 83, the third pulley 84 and the fourth pulley 85 in sequence.

[0041] By using the first pulley 82 and the second pulley 83, the steel cable 7 can cross the bracket 3, and then the direction of the steel cable 7 is changed by the third pulley 84 and the fourth pulley 85, so that the steel cable 7 can reach the top of the winding drum 81, and the positions of the two steel cables 7 are staggered by relying on the positioning holes. When winding, the two steel cables 7 will not cross-entangle on the winding drum 81, preventing the walking bridge 4 from getting stuck when it is retracted and released.

[0042] Preferably, the mounting seat 9 includes a fixing plate 91 fixed on the rear frame 33, and two side plates 92 are arranged on the fixing plate 92 at an axial interval along the winding drum 81, and the two side plates 92 are connected by a connecting rod 93, and a roller body 94 is arranged between the connecting rod 93 and the fixing plate 91, and the roller body 94 separates two positioning holes between the two side plates 92; the roller body 92 is used to separate the positioning holes, and a larger positioning hole can be obtained, and the steel cable 7 has a certain shaking space, which is convenient for the winding of the winding drum 81; and it is also more convenient to process, and the roller body 92 can also assist the movement of the steel cable 7.

[0043] In this embodiment, the winding drum 81 may also be disposed between the two side plates 92 , so as to limit the positions of the winding drum 81 and the positioning hole, thereby facilitating the winding of the steel cable 7 .

[0044] In this embodiment, a hand wheel or a rocker arm is connected to the winding drum 81, and the winding drum 81 is driven to rotate by turning the hand wheel or the rocker arm. A fastening structure, such as a latch and a pin hole, can be provided on the winding drum 81 and the rear frame 33. After the winding is in place, the winding drum 81 can be fixed by the latch to prevent the winding drum 81 from rotating further.

[0045] Of course, it is also feasible to use a motor to drive the take-up drum 81 to rotate.

[0046] In this embodiment, the mobile platform 5 includes a plate body and a plurality of universal wheels arranged at the bottom of the plate body, and the plate body is hinged to the second bridge body 42; the universal wheels facilitate the movement of the plate body, and when the tugboat rises and falls, the mobile platform 5 can move with it, so that the walking bridge 4 can adjust its posture; specifically, there are 4 universal wheels;

[0047] The mobile platform 5 is placed on the deck of the tugboat, rather than on the bulwarks. With the obstruction of the bulwarks, the mobile platform 5 will not slide off the deck of the tugboat.

[0048] In this embodiment, guardrails 10 are provided on both sides of the first bridge body 41 and the second bridge body 42 to prevent people from falling from the walking bridge 4 .

[0049] In this embodiment, the length of the first bridge body 41 is greater than the length of the second bridge body 42;

[0050] The second bridge body 42 can be bent when the tugboat deck is higher than the shore to facilitate the passage of people. It does not need to be too long. If the length of the second bridge body 42 is greater than that of the first bridge body 41, then after the second bridge body 42 is bent, the slope of the first bridge body 41 is too large, which is inconvenient to walk.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shore-to-ship ladder, characterized in that: It includes a track, a slide, a bracket, a walking bridge and a mobile platform. The track is fixed on the shore, the slide is slidably connected to the track, the bracket is rotatably set on the slide, and the walking bridge includes a first bridge body and a second bridge body hinged in sequence. One end of the first bridge body away from the second bridge body is hinged to the bracket, and one end of the second bridge body away from the first bridge body is hinged to the mobile platform. The mobile platform is used to be placed on the deck.

2. The shore-to-ship ladder according to claim 1, characterized in that: Elastic cables are provided on both sides of the first bridge body, and the elastic cables connect the first bridge body and the bracket.

3. The shore-to-ship ladder according to claim 2, characterized in that: The bracket includes a base plate, a front frame body and a rear frame body fixed on the base plate, the front frame body and the rear frame body are arranged at intervals, the first bridge body is hinged to the base plate, the front frame body is located on a side of the base plate close to the first bridge body, and the elastic cable is connected to the front frame body.

4. The shore-to-ship ladder according to claim 3, characterized in that: Steel cables are provided on both sides of the second bridge body, and the bracket is provided with a reeling mechanism. The two steel cables are respectively connected to the reeling mechanisms. The reeling mechanisms reel in or release the steel cables to retract or lower the walking bridge.

5. The shore-to-ship ladder according to claim 4, characterized in that: The winding mechanism comprises a winding drum and a guide structure, wherein the guide structures are two and correspond to the two steel cables, and the winding drum is arranged on a side of the rear frame away from the front frame; The axis of the winding drum is arranged horizontally, and a mounting seat is provided on the rear frame. Two positioning holes are arranged on the mounting seat at intervals along the axial direction of the winding drum. The positioning holes are located above the winding drum. The two positioning holes correspond to the two steel cables. After passing through the guide structure, the steel cables pass through the positioning holes and are wound onto the winding drum.

6. The shore-to-ship ladder according to claim 5, characterized in that: The guide structure includes a first pulley arranged at the top of the front frame, a second pulley arranged at the top of the rear frame, a third pulley and a fourth pulley arranged on a side of the rear frame away from the front frame, the fourth pulley is located on a side of the third pulley close to the mounting seat and above the positioning hole, and the steel cable passes through the positioning hole after passing through the first pulley, the second pulley, the third pulley and the fourth pulley in sequence.

7. The shore-to-ship ladder according to claim 5, characterized in that: The mounting seat includes a fixed plate fixed on the rear frame, and two side plates are arranged on the fixed plate at intervals along the axial direction of the winding drum. The two side plates are connected by a connecting rod, and a roller body is arranged between the connecting rod and the fixed plate, and the roller body separates two positioning holes between the two side plates.

8. The shore-to-ship ladder according to claim 1, characterized in that: The mobile platform comprises a plate body and a plurality of universal wheels arranged at the bottom of the plate body, and the plate body is hinged to the second bridge body.

9. The shore-to-ship ladder according to claim 1, characterized in that: Guardrails are provided on both sides of the first bridge body and the second bridge body.

10. The shore-to-ship ladder according to claim 1, characterized in that: The length of the first bridge body is greater than the length of the second bridge body.

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