Lifting platform for maritime rescue ship

Abstract

The lifting platform comprises two supporting arm rods and the rescue ship, bearing seats are fixedly connected to the upper faces of the two supporting arm rods, a welding rotating shaft is rotatably installed between the bearing seats, a winding disc is fixedly connected to the rotating shaft, a connecting cable is wound in the winding disc, and the connecting cable is fixedly connected to the supporting arm rods. A U-shaped connecting frame is fixedly connected to the other end of the connecting cable, connecting bases are fixedly connected to the two ends of the lower portion of the U-shaped connecting frame, a limiting sleeve block is fixedly connected to one side of each connecting base, a limiting sliding rod is fixedly connected to the lower portion of the protruding edge of the upper end of the supporting arm rod, and the limiting sleeve blocks are in sliding fit with the limiting sliding rod. When the platform is in an idle state, the lifting platform can be manually overturned to 90 degrees, then the lifting platform is attached to the side face of the rescue boat, at the moment, the limiting plug pins can be inserted into the limiting holes, the lifting platform is kept in a vertical state, overturning and folding of the lifting platform are achieved through a simple plug pin structure, and the rescue boat is convenient to use. The lifting platform is prevented from protruding to affect normal landing driving of the rescue boat.

Description

Technical Field

[0001] The invention relates to a lifting platform, in particular to a lifting platform for a marine rescue ship. Background Art

[0002] In maritime rescue operations, the lifting platform can quickly deliver rescue personnel and equipment to the sea surface, buying precious time for rescue work. This design not only enables personnel to quickly reach the scene of the incident, but also greatly improves rescue efficiency and safety.

[0003] For example, a Chinese patent publication number CN114275103A discloses a rescue boarding device and a ship, wherein the rescue boarding device includes: a rescue platform; a lifting mechanism pivotally connected to the ship, and a telescopic end connected to the rescue platform; a driving mechanism, which is arranged on the ship and connected to the lifting mechanism, and is used to drive the rescue platform to switch back and forth between an open state and a retracted state; when the rescue platform is in the open state, the rescue platform can reciprocate between a first height position and a second height position; when the rescue platform is in the retracted state, the rescue platform is located at the first height position, and the bottom wall of the rescue platform is flush with the side wall of the ship. In the present invention, the rescue platform can be moved to a position closer to the water surface through the lifting mechanism, so as to facilitate the transfer of people who fall into the water to the ship. It is not easy to shake during the rescue process, and the rescue platform can be folded and retracted, which ensures the integrity of the appearance of the ship. The patent has the following problems:

[0004] The folding platform adopts a complex drive structure. Since the device is installed on the side of the ship, it is often exposed to seawater. The corrosiveness of seawater will cause the exposed drive structure to rust, resulting in a high failure rate of the device in the later stage and a high cost. Summary of the invention

[0005] The object of the present invention is to provide a lifting platform for a marine rescue ship to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lifting platform for a marine rescue ship, comprising two support arms and a rescue boat, the two support arms are fixedly connected with bearing seats, a welded rotating shaft is rotatably installed between the bearing seats, a winding disk is fixedly connected to the rotating shaft, a connecting cable is wound in the winding disk, the other end of the connecting cable is fixedly connected to a U-shaped connecting frame, both ends of the lower side of the U-shaped connecting frame are fixedly connected to a connecting seat, one side of the connecting seat is fixedly connected to a limiting sleeve block, a limiting sliding rod is fixedly connected to the lower side of the convex edge of the upper end of the support arm, the limiting sleeve block is slidably matched with the limiting sliding rod, a lifting platform is arranged between the two connecting seats, rotating connecting shafts are fixedly connected to both sides of the lifting platform, a rotating connecting hole is opened in the connecting seat, and the rotating connecting shaft is rotatably matched with the rotating connecting hole.

[0007] Preferably, the support arm on one side is fixedly connected to a drive motor via a motor bracket, and an output end of the drive motor is fixedly connected to a rotating shaft.

[0008] Preferably, a welding fixing plate is fixedly connected to the lower end of the limiting sliding rod, and the rear end of the welding fixing plate is welded to the surface of the rescue boat.

[0009] Preferably, a tensioning pull rope is fixedly connected to the front side of the connecting seat.

[0010] Preferably, connecting lifting ears are fixedly connected to both sides of the lifting platform, and the other end of the tensioning lifting rope is wound around the tensioning lifting rope.

[0011] Preferably, avoidance grooves are symmetrically provided on the front side of the U-shaped connecting frame, and the avoidance grooves cooperate with the connecting lifting ears.

[0012] Preferably, a caulking plate is fixedly connected to the rear of the two connecting seats.

[0013] Preferably, a limiting groove is provided on the lifting platform, a return spring is slidably installed in the limiting groove, and the other end of the return spring is fixedly connected to a limiting latch.

[0014] Preferably, a displacement handle is fixedly connected to the limit latch.

[0015] Preferably, a limiting hole is provided on the inner side of the connecting seat on one side, and the limiting hole cooperates with the limiting pin.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the platform is idle, you can manually flip the lifting platform to 90 degrees, so that the lifting platform fits the side of the rescue boat. At this time, the limit pin will be inserted into the limit hole to keep the lifting platform in a vertical state. The simple pin structure can be used to flip and fold the lifting platform to avoid the lifting platform protruding and affecting the normal berthing of the rescue boat.

[0018] 2. By starting the drive motor, the lifting platform can be driven up and down, and then the rescue materials or personnel can be quickly dropped onto the sea surface, and the people who fall into the water can be rescued to the rescue boat, which simplifies the control and structure of the lifting rescue platform, reduces the number of parts and reduces costs.

[0019] 3. The lifting platform is moved up and down by simply using connecting cables. The connecting cables will not rust due to immersion in seawater, and there are not too many transmission mechanisms, which can avoid the problem of the device being rusted and damaged by seawater and unable to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention in the installed state;

[0021] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the lifting platform of the present invention in a folded state;

[0023] Figure 4 It is a schematic diagram of the structure of the U-shaped connecting frame of the present invention;

[0024] Figure 5 It is a partial cross-sectional view of the present invention.

[0025] In the figure: 1. Support arm; 101. Rotating shaft; 102. Winding reel; 103. Driving motor; 2. Limiting slide bar; 201. Welding fixing plate; 3. U-shaped connecting frame; 301. Connecting seat; 302. Limiting sleeve; 303. Avoiding groove; 304. Rotating connecting hole; 305. Connecting cable; 306. Limiting hole; 307. Tensioning lifting rope; 308. Filling plate; 4. Lifting platform; 401. Connecting lifting ear; 402. Rotating connecting shaft; 5. Limiting groove; 501. Return spring; 502. Limiting latch; 503. Displacement handle; 6. Rescue boat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-5 As shown, the present invention has the following specific embodiments.

[0028] Example 1

[0029] A lifting platform for a marine rescue ship comprises two support arms 1 and a rescue ship 6. The two support arms 1 are fixedly connected with bearing seats. A welded rotating shaft 101 is rotatably installed between the bearing seats. A winding drum 102 is fixedly connected to the rotating shaft 101. A connecting cable 305 is wound in the winding drum 102. A U-shaped connecting frame 3 is fixedly connected to the other end of the connecting cable 305. Connecting seats 301 are fixedly connected to both ends of the U-shaped connecting frame 3. A limiting sleeve block 302 is fixedly connected to one side of the connecting seat 301. A limiting slide bar 2 is fixedly connected to the lower side of the convex edge of the upper end of the support arm 1. The limiting sleeve block 302 is slidably matched with the limiting slide bar 2. A lifting platform 4 is arranged between the two connecting seats 301. Rotating connecting shafts 402 are fixedly connected to both sides of the lifting platform 4. A rotating connecting hole 304 is opened in the connecting seat 301. The rotating connecting shaft 402 is rotatably matched with the rotating connecting hole 304.

[0030] In this embodiment, the connecting cable 305 can be wound or released by rotating the winding disk 102, and the connecting cable 305 can drive the U-shaped connecting frame 3 to move up or down, and the U-shaped connecting frame 3 will drive the lifting platform 4 to move up and down through the connecting seat 301, thereby achieving the purpose of quickly getting on and off the rescue boat, and the limiting sleeve 302 and the limiting slide bar 2 are slidably matched, which can limit the U-shaped connecting frame 3 to only move up and down, and avoid the problem of the lifting platform 4 shaking left and right due to the wind and waves on the sea surface. The rotating connecting shaft 402 is rotatably matched with the rotating connecting hole 304 to rotatably connect the lifting platform 4 to the connecting seat 301, and then the lifting platform 4 can be rotated ninety degrees to a vertical state, such as Figure 3 As shown, at this time, the lifting platform 4 will fit closely to the side of the rescue ship 6 to prevent the lifting platform 4 from protruding and affecting the normal berthing of the rescue ship. At the same time, the lifting platform 4 is simply pulled up and down by the connecting cable 305. The connecting cable 305 will not rust due to immersion in seawater, and there are not too many transmission mechanisms, which can avoid the problem of the device being rusted and damaged by seawater and unable to work.

[0031] Example 2

[0032] like Figure 2 , 3 As shown in , 4, one side support arm 1 is fixedly connected to the driving motor 103 through the motor bracket, the output end of the driving motor 103 is fixedly connected to the rotating shaft 101, the lower end of the limiting slide bar 2 is fixedly connected to the welding fixing plate 201, the rear of the welding fixing plate 201 is welded to the surface of the rescue boat 6, the front of the connecting seat 301 is fixedly connected to the tensioning lifting rope 307, the two sides of the lifting platform 4 are fixedly connected to the connecting ears 401, the other end of the tensioning lifting rope 307 is wound around the tensioning lifting rope 307, the front of the U-shaped connecting frame 3 is symmetrically provided with avoidance grooves 303, the avoidance grooves 303 cooperate with the connecting ears 401, and the two connecting seats 301 are fixedly connected to the back of the caulking plates 308.

[0033] In this embodiment, the driving motor 103 can be started to drive the rotating shaft 101 to rotate, and the rotation of the rotating shaft 101 can drive the winding disk 102 to rotate, thereby controlling the winding or releasing of the connecting cable 305. The limiting slide bar 2 can fix the lower end by welding the fixing plate 201, and use the tensioning pull rope 307 to connect the connecting ear 401 and the connecting seat 301 to keep the lifting platform 4 in a horizontal state. At the same time, the tensioning pull rope 307 is used for connection. When the lifting platform 4 flips over, the tensioning pull rope 307 will be deformed to avoid interference and affect the flipping of the lifting platform 4.

[0034] Example 3

[0035] like Figure 3 , 4 As shown in Figure 5, a limiting groove 5 is provided on the lifting platform 4, and a return spring 501 is slidably installed in the limiting groove 5. The other end of the return spring 501 is fixedly connected to a limiting latch 502, and a displacement handle 503 is fixedly connected to the limiting latch 502. A limiting hole 306 is provided on the inner side of a connecting seat 301 on one side, and the limiting hole 306 cooperates with the limiting latch 502.

[0036] In this embodiment, the return spring 501 can provide a certain thrust for the limit pin 502. The limit pin 502 will be inserted into the limit hole 306 under the thrust, thereby limiting the rotation of the lifting platform 4 and keeping the lifting platform 4 in a vertical state. The displacement handle 503 can be used to drive the limit pin 502 to move.

[0037] The working principle and use process of the present invention are as follows: when in use, the device needs to be installed on the side of the rescue boat 6, and the rescue materials to be used are pushed onto the lifting platform 4. Starting the drive motor 103 can drive the winding drum 102 to rotate. The rotation of the winding drum 102 will gradually release the connecting cable 305. Under the action of gravity, the lifting platform 4 will gradually move downward horizontally, and then quickly drop the rescue materials or personnel onto the sea surface. Reverse starting the drive motor 103 can drive the lifting platform 4 to move upward, and rescue the fallen people to the rescue boat. When the platform is idle, the lifting platform 4 can be manually flipped to ninety degrees, so that the lifting platform 4 is attached to the side of the rescue boat 6. At this time, the limit pin 502 will be inserted into the limit hole 306 to keep the lifting platform 4 in a vertical state.

[0038] 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 appended claims and their equivalents.

Claims

1. A lifting platform for a marine rescue ship, comprising two support arms (1) and a rescue ship (6), characterized in that: The two support arms (1) are both fixedly connected with bearing seats, a welded rotating shaft (101) is rotatably mounted between the bearing seats, a winding drum (102) is fixedly connected to the rotating shaft (101), a connecting cable (305) is wound inside the winding drum (102), the other end of the connecting cable (305) is fixedly connected to a U-shaped connecting frame (3), both ends of the lower side of the U-shaped connecting frame (3) are fixedly connected to a connecting seat (301), and one side of the connecting seat (301) is fixedly connected to a limit stop. A sleeve block (302), a limit slide bar (2) is fixedly connected to the lower side of the upper convex edge of the support arm rod (1), the limit sleeve block (302) and the limit slide bar (2) are slidably matched, a lifting platform (4) is arranged between the two connecting seats (301), a rotating connecting shaft (402) is fixedly connected to both sides of the lifting platform (4), a rotating connecting hole (304) is opened in the connecting seat (301), and the rotating connecting shaft (402) is rotatably matched with the rotating connecting hole (304).

2. The lifting platform for a marine rescue ship according to claim 1, characterized in that: The support arm (1) on one side is fixedly connected to a drive motor (103) via a motor bracket, and an output end of the drive motor (103) is fixedly connected to a rotating shaft (101).

3. The lifting platform for a marine rescue ship according to claim 1, characterized in that: A welding fixing plate (201) is fixedly connected to the lower end of the limiting sliding rod (2), and the rear end of the welding fixing plate (201) is welded to the surface of the rescue boat (6).

4. The lifting platform for a marine rescue ship according to claim 1, characterized in that: A tensioning pull rope (307) is fixedly connected to the front side of the connecting seat (301).

5. The lifting platform for a marine rescue ship according to claim 4, characterized in that: The lifting platform (4) is fixedly connected with connecting lifting ears (401) on both sides, and the other end of the tensioning lifting rope (307) is wound around the tensioning lifting rope (307).

6. The lifting platform for a marine rescue ship according to claim 5, characterized in that: The U-shaped connecting frame (3) is symmetrically provided with avoidance grooves (303) on the front side, and the avoidance grooves (303) cooperate with the connecting lifting ears (401).

7. The lifting platform for a marine rescue ship according to claim 1, characterized in that: A caulking plate (308) is fixedly connected to the rear of the two connection seats (301).

8. The lifting platform for a marine rescue ship according to claim 1, characterized in that: A limiting groove (5) is provided on the lifting platform (4), a return spring (501) is slidably installed in the limiting groove (5), and the other end of the return spring (501) is fixedly connected to a limiting latch (502).

9. The lifting platform for a marine rescue ship according to claim 8, characterized in that: A displacement handle (503) is fixedly connected to the limit latch (502).

10. The lifting platform for a marine rescue ship according to claim 8, characterized in that: A limiting hole (306) is provided on the inner side of the connecting seat (301) on one side, and the limiting hole (306) cooperates with the limiting pin (502).

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