A ship life raft boarding device

Abstract

The present invention discloses a ship life raft boarding device in the field of life raft technology, comprising a fixed inclined ladder, the top of the fixed inclined ladder is butted with the hull, the bottom of the fixed inclined ladder is rotatably connected to a folding ladder, the top of the folding ladder is rotatably connected to a rotating seat, the left end of the rotating seat is fixedly connected to a support plate, the top of the rotating seat is rotatably connected to a connecting frame, and the top of the connecting frame is rotatably connected to a valve body. The present invention adopts a folding transmission assembly, and the upper and lower surfaces of the folding ladder are reversed after being flipped. If the support plate originally located above the folding ladder does not move, it will be located below the folding ladder after the folding ladder is flipped, and the valve body on the support plate cannot float horizontally on the water surface under the action of gravity. After the support plate is flipped, when the folding ladder is flipped and swapped with the upper and lower surfaces, the support plate is flipped so that its upper end surface does not change at all, so that the valve body located on the upper end surface of the support plate can float on the water surface stably after contacting the water surface.

Description

Technical Field

[0001] The invention relates to the technical field of life rafts, in particular to a ship life raft boarding device. Background Art

[0002] A life raft generally refers to an inflatable valve body on a ship used for emergency escape in the event of an accident. When an accident occurs, the life raft is inflated and placed on the water surface, and personnel are transferred from the ship to the life raft to complete escape. The valve body used for life-saving during flood control and disaster relief is also called a life raft. The inflatable life raft is easy to carry and can provide sufficient water surface buoyancy after inflation, which is very practical in emergency escape.

[0003] When an existing inflatable life raft needs to be used in an accident, the inflation valve needs to be inflated and then placed on the water surface. Then, the personnel are evacuated to the life raft with the help of a boarding device. However, the boarding device is generally a ladder rigidly fixed to the hull, which is extended during boarding. The personnel climb down the ladder from the ship to the life raft. There is no rigid connection between the ladder and the life raft. Generally, the life raft is connected to the bottom of the ladder by a rope, and the rope can be untied after the personnel board. If the life raft is used in windy and choppy weather, the life raft is very unstable when there are wind and waves on the water surface, and is easily affected by the wind and waves and deviates from the bottom position of the ladder, which will cause the problem of boarding difficulty, greatly affecting the efficiency of the evacuation of personnel on board.

[0004] Based on this, the present invention designs a ship life raft boarding device to solve the problem that the connection between the boarding device on the ship and the life raft is easily affected by wind and waves, resulting in difficulty in boarding. Summary of the invention

[0005] The object of the present invention is to provide a ship life raft boarding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ship life raft boarding device, comprising a fixed inclined ladder, the top end of the fixed inclined ladder is docked with the hull, the bottom of the fixed inclined ladder is rotatably connected to a folding ladder, the top of the folding ladder is rotatably connected to a rotating seat, the left end of the rotating seat is fixedly connected to a support plate, the top of the rotating seat is rotatably connected to a connecting frame, the top of the connecting frame is rotatably connected to a valve body, the valve body is arranged above the support plate, and a folding transmission assembly is arranged on the folding ladder, and the folding transmission assembly is used to drive the valve body to flip simultaneously when the folding ladder is flipped.

[0007] As a further solution of the present invention, the folding transmission assembly includes a connecting block, the connecting block and the folding ladder are rotatably connected to a rotating shaft, a second gear is rotatably connected to the side wall at the top end of the folding ladder, the second gear and the rotating shaft are jointly connected to a transmission chain, a first gear is fixedly connected to the side wall of the rotating seat, and the first gear is meshed with the second gear.

[0008] As a further solution of the present invention, a rotating block is rotatably connected inside the top of the rotating seat, a socket is opened at the top of the rotating block, an insertion block for docking with the socket is fixedly connected to the bottom of the connecting frame, and a limiting rod for fixing the insertion block is slidably connected to the right end of the rotating block.

[0009] As a further solution of the present invention, a first buckle is fixedly connected to the top of the valve body, a telescopic rod is slidably connected inside the connecting frame, a reset spring for resetting the telescopic rod is sleeved on the telescopic rod, the top of the reset spring passes through the connecting frame and is fixedly connected to a fixing seat, a second buckle is fixedly connected to the top of the fixing seat, and the first buckle and the second buckle are commonly connected to a locking rod.

[0010] As a further solution of the present invention, the top of the valve body is fixedly connected to a thickened base, the first buckle ring is fixedly arranged on the thickened base, and the first buckle ring and the second buckle ring are respectively sleeved with anti-wear sleeves for reducing friction on the outside.

[0011] As a further solution of the present invention, a limiting block is fixedly connected to the top of the bottom of the folding ladder, and the limiting block is used to dock with the outer wall of the bottom end of the fixed inclined ladder.

[0012] As a further solution of the present invention, a driving motor is fixedly connected to the side wall of the folding ladder, and the output shaft of the driving motor is fixedly connected to one end of the rotating shaft.

[0013] As a further solution of the present invention, a baffle plate for limiting the position of the valve body is fixedly connected to the top of the bottom of the support plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention adopts a folding transmission assembly. After the folding ladder is flipped, the upper and lower surfaces are reversed. If the support plate originally located above the folding ladder does not move, it will be located below the folding ladder after the folding ladder is flipped. In this way, the valve body on the support plate cannot float horizontally on the water surface under the action of gravity. After the support plate is flipped, when the folding ladder is flipped and reversed to the upper and lower surfaces, the support plate is flipped so that its upper end surface does not change at all. In this way, the valve body located on the upper end surface of the support plate can float steadily on the water surface after contacting the water surface. In this way, the valve body is fixedly connected to the folding ladder by the connecting frame. Even in windy and choppy weather, the position of the valve body at the bottom of the folding ladder will not change significantly, thereby improving the efficiency of boarding in bad weather. In this way, the valve body can also be slowly and stably placed on the water surface to avoid the valve body being directly thrown off the hull and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the valve body structure of the present invention;

[0018] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0020] Figure 5 It is a schematic diagram of the folding structure of the connecting frame, folding ladder and supporting plate of the present invention;

[0021] Figure 6 for Figure 5 The enlarged structural diagram at C in the middle;

[0022] Figure 7 This is a schematic diagram of the unfolded structure of the connecting frame, folding ladder and supporting plate of the present invention;

[0023] Figure 8 for Figure 7 Enlarged structural diagram at D in the middle.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Valve body; 2. Connecting frame; 3. Folding ladder; 4. Fixed inclined ladder; 5. Driving motor; 6. Insert block; 7. First buckle ring; 8. Lock rod; 9. Second buckle ring; 10. Fixed seat; 11. Thickened base; 12. Telescopic rod; 13. Return spring; 14. Support plate; 15. Transmission chain; 16. Rotating block; 17. Socket; 18. Limit rod; 19. Rotating seat; 20. First gear; 21. Second gear; 22. Limit block; 23. Connecting block; 24. Baffle. DETAILED DESCRIPTION

[0026] See also Figure 1-Figure 8 The present invention provides a technical solution: a ship life raft boarding device, comprising a fixed inclined ladder 4, the top of the fixed inclined ladder 4 is docked with the hull, the bottom of the fixed inclined ladder 4 is rotatably connected to a folding ladder 3, the top of the folding ladder 3 is rotatably connected to a rotating seat 19, the left end of the rotating seat 19 is fixedly connected to a support plate 14, the top of the rotating seat 19 is rotatably connected to a connecting frame 2, the top of the connecting frame 2 is rotatably connected to a valve body 1, the valve body 1 is arranged above the support plate 14, and a folding transmission assembly is arranged on the folding ladder 3, and the folding transmission assembly is used to drive the valve body 1 to flip when the folding ladder 3 is flipped;

[0027] When the above scheme is put into actual use, when the valve body 1 is needed, the valve body 1 is taken out and inflated to an expanded state, and then the connecting frame 2 on one side of the valve body 1 is connected to the top of the folding ladder 3, the valve body 1 is placed above the support plate 14, and then the folding transmission component is used to drive the folding ladder 3 to rotate around the bottom of the fixed inclined ladder 4 until the folding ladder 3 is flipped to a position horizontal to the fixed inclined ladder 4. During the flipping process, the folding transmission component synchronously drives the support plate 14 to flip. The advantage of this is that the upper and lower surfaces of the folding ladder 3 are reversed after the flipping, and if the support plate 14 originally located above the folding ladder 3 does not move, it will be located below the folding ladder 3 after the flipping, so the support plate The valve body 1 on 14 cannot float horizontally on the water surface under the action of gravity, and after the support plate 14 is turned over, when the folding ladder 3 is turned over and swapped with the upper and lower surfaces, the support plate 14 is turned over so that its upper end surface does not change at all, so that the valve body 1 located on the upper end surface of the support plate 14 can float steadily on the water surface after contacting the water surface, and the valve body 1 and the folding ladder 3 are fixedly connected by the connecting frame 2, and the position of the valve body 1 at the bottom of the folding ladder 3 will not change significantly even in windy and choppy weather, thereby improving the efficiency of boarding in bad weather, and the valve body 1 can be slowly and stably placed on the water surface to avoid the valve body 1 being directly thrown off the hull and causing damage.

[0028] As a further solution of the present invention, the folding transmission assembly includes a connecting block 23, the connecting block 23 and the folding ladder 3 are rotatably connected to a rotating shaft, a second gear 21 is rotatably connected to the top side wall of the folding ladder 3, the second gear 21 and the rotating shaft are jointly connected to a transmission chain 15, a first gear 20 is fixedly connected to the side wall of the rotating seat 19, the first gear 20 is meshed with the second gear 21, a driving motor 5 is fixedly connected to the side wall of the folding ladder 3, and the output shaft of the driving motor 5 is fixedly connected to one end of the rotating shaft;

[0029] When the above scheme is put into actual use, when it is necessary to rotate and unfold the folding ladder 3, the driving motor 5 drives the transmission chain 15 to rotate, the transmission chain 15 drives the second gear 21 to rotate, and the second gear 21 drives the first gear 20 to rotate, and the rotation direction of the folding ladder 3 is opposite to the rotating seat 19. In this way, when the folding ladder 3 is unfolded and rotated counterclockwise, the rotating seat 19 will drive the support plate 14 to rotate clockwise, so that the folding ladder 3 rotates to the bottom of the fixed inclined ladder 4 to extend the overall length of the fixed inclined ladder 4, and the support plate 14 will rotate to drive the valve body 1 to float on the water.

[0030] As a further solution of the present invention, a rotating block 16 is rotatably connected inside the top of the rotating seat 19, a socket 17 is provided at the top of the rotating block 16, an insert block 6 for docking with the socket 17 is fixedly connected to the bottom of the connecting frame 2, and a limiting rod 18 for fixing the insert block 6 is slidably connected to the right end of the rotating block 16;

[0031] When the above scheme is put into actual use, the plug block 6 at the bottom of the connecting frame 2 is inserted into the socket 17, and the plug block 6 is fixed inside the socket 17 by connecting the limit rod 18 with the plug block 6. The rotating block 16 is rotatably set inside the rotating seat 19, so that after the valve body 1 floats on the water, when the valve body 1 shakes up and down due to the influence of wind and waves, the rotating block 16 can be driven by the connecting frame 2 to rotate inside the rotating seat 19. Because of the transmission limitation of the first gear 20 and the second gear 21, the rotating seat 19 cannot rotate with the valve body 1. This can effectively reduce the impact of the shaking of the valve body 1 caused by wind and waves on the fixed connection of the rotating seat 19. After boarding, the limit rod 18 is stretched to disengage from the connection with the plug block 6, and the plug block 6 can be taken out from the socket 17, so that the valve body 1 is detached from the rotating seat 19.

[0032] As a further solution of the present invention, a first buckle 7 is fixedly connected to the top of the valve body 1, a telescopic rod 12 is slidably connected inside the connecting frame 2, a reset spring 13 for resetting the telescopic rod 12 is sleeved on the telescopic rod 12, the top of the reset spring 13 passes through the connecting frame 2 and is fixedly connected to a fixing seat 10, a second buckle 9 is fixedly connected to the top of the fixing seat 10, and the first buckle 7 and the second buckle 9 are commonly connected to a locking rod 8;

[0033] When the above scheme is put into actual use, the connecting frame 2 can be flipped around the first buckle 7 on the valve body 1 through the locking rod 8, so that the angle of the connecting frame 2 on the valve body 1 can be adjusted during use to facilitate the docking of the connecting frame 2 with the rotating block 16. After the docking is completed, the connection between the first buckle 7, the locking rod 8 and the second buckle 9 is less affected by wind and waves, and the fixing seat 10 can extend part of its length from the inside of the connecting frame 2, so that the rigid connection between the valve body 1 and the connecting frame 2 is changed into a flexible connection, which can play a certain buffering role in the up and down swinging of the valve body 1 when affected by wind and waves.

[0034] As a further solution of the present invention, the top of the valve body 1 is fixedly connected to a thickened base 11, the first buckle ring 7 is fixedly arranged on the thickened base 11, and the first buckle ring 7 and the second buckle ring 9 are respectively sleeved with anti-wear sleeves for reducing friction;

[0035] When the above scheme is put into actual use, the first buckle ring 7 is fixed on the thickened base. Because the valve body 1 will float up and down due to the influence of wind and waves on the water surface, the locking rod 8 will produce a greater torque on the first buckle ring 7. The thickened base can further improve the connection and fixing effect, so that the first buckle ring 7 is fixed on the valve body 1 more stably. The anti-wear sleeve further improves the wear resistance and can effectively reduce the wear between the first buckle ring 7, the second buckle ring 9 and the locking rod 8.

[0036] As a further solution of the present invention, the top of the bottom of the folding ladder 3 is fixedly connected to a limiting block 22, and the limiting block 22 is used to dock with the outer wall of the bottom end of the fixed inclined ladder 4;

[0037] When the above scheme is put into actual use, after the folding ladder 3 is flipped one hundred and eighty degrees, the limit block 22 at the top of the folding ladder 3 will become located at the bottom of the folding ladder 3, and the side wall of the limit block 22 will contact the outer wall of the bottom end of the fixed inclined ladder 4 to form a support, so that the overall force of the folding ladder 3 is no longer concentrated on the rotating shaft, further improving the stability and force weighing of the folding ladder 3.

[0038] As a further solution of the present invention, a baffle 24 for limiting the position of the valve body 1 is fixedly connected to the top of the bottom of the support plate 14;

[0039] When the above solution is put into actual use, the baffle 24 provides a supporting effect for the valve body 1, so that when the valve body 1 is placed on the inclined support plate 14, the connecting frame 2 will not slide due to gravity and the valve body 1 will not detach from the support plate 14.

[0040] Working principle: When the valve body 1 is needed, the valve body 1 is taken out and inflated to an expanded state, the plug block 6 at the bottom of the connecting frame 2 is inserted into the socket 17, and the plug block 6 is fixed inside the socket 17 by docking with the limit rod 18, and the rotating block 16 is rotatably arranged inside the rotating seat 19, and the valve body 1 is placed above the support plate 14;

[0041] When it is necessary to rotate and unfold the folding ladder 3, the transmission chain 15 is driven to rotate by the driving motor 5, and the transmission chain 15 drives the second gear 21 to rotate, and the second gear 21 will drive the first gear 20 to rotate, and the rotation direction of the folding ladder 3 is opposite to that of the rotating seat 19. In this way, when the folding ladder 3 is unfolded and rotated counterclockwise, the rotating seat 19 will drive the support plate 14 to rotate clockwise. After the valve body 1 floats on the water, when the valve body 1 shakes up and down due to the influence of wind and waves, the rotating block 16 can be driven to rotate inside the rotating seat 19 through the connecting frame 2. Because the transmission limit of the first gear 20 and the second gear 21 makes the rotating seat 19 unable to rotate with the valve body 1, this can effectively reduce the impact of the shaking of the valve body 1 caused by wind and waves on the fixed connection of the rotating seat 19. After boarding, the stretching limit rod 18 is disconnected from the connection with the plug block 6, and the plug block 6 can be taken out from the inside of the socket 17, so that the valve body 1 is separated from the rotating seat 19.

Claims

1. A ship life raft boarding device, comprising a fixed inclined ladder (4), the top end of which is butted against the hull, characterized in that: The bottom of the fixed inclined ladder (4) is rotatably connected to a folding ladder (3), the top of the folding ladder (3) is rotatably connected to a rotating seat (19), the left end of the rotating seat (19) is fixedly connected to a support plate (14), the top of the rotating seat (19) is rotatably connected to a connecting frame (2), the top of the connecting frame (2) is rotatably connected to a raft body (1), the raft body (1) is arranged above the support plate (14), and a folding transmission assembly is arranged on the folding ladder (3), and the folding transmission assembly is used to drive the raft body (1) to flip when the folding ladder (3) is flipped; The folding transmission assembly comprises a connecting block (23), the connecting block (23) is fixed to the top of the bottom of the fixed inclined ladder (4), the connecting block (23) and the folding ladder (3) are rotatably connected to a rotating shaft, a second gear (21) is rotatably connected to the side wall of the top of the folding ladder (3), the second gear (21) and the rotating shaft are jointly connected to a transmission chain (15), and a first gear (20) is fixedly connected to the side wall of the rotating seat (19), and the first gear (20) is meshed with the second gear (21); A driving motor (5) is fixedly connected to the side wall of the folding ladder (3), and an output shaft of the driving motor (5) is fixedly connected to one end of the rotating shaft; A baffle (24) for limiting the position of the raft (1) is fixedly connected to the top of the bottom of the support plate (14); A rotating block (16) is rotatably connected inside the top of the rotating seat (19), a socket (17) is provided at the top of the rotating block (16), an insert block (6) for docking with the socket (17) is fixedly connected at the bottom of the connecting frame (2), and a limiting rod (18) for fixing the insert block (6) is slidably connected at the right end of the rotating block (16); The top of the raft body (1) is fixedly connected with a first buckle (7), the interior of the connecting frame (2) is slidably connected with a telescopic rod (12), the telescopic rod (12) is sleeved with a reset spring (13) for resetting the telescopic rod, the top of the reset spring (13) passes through the connecting frame (2) and is fixedly connected with a fixing seat (10), the top of the fixing seat (10) is fixedly connected with a second buckle (9), and the first buckle (7) and the second buckle (9) are commonly connected with a locking rod (8); The top of the raft body (1) is fixedly connected to a thickened base (11), the first buckle ring (7) is fixedly arranged on the thickened base (11), and the first buckle ring (7) and the second buckle ring (9) are respectively sleeved with anti-wear sleeves for reducing friction; The top of the bottom of the folding ladder (3) is fixedly connected to a limiting block (22), and the limiting block (22) is used to connect with the outer wall of the bottom end of the fixed inclined ladder (4).

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