Retractable life raft frame for full-rotation tug

Abstract

The invention discloses a retractable life raft frame for a full-rotation tug, which is characterized in that an inclined base is mounted on a deck of a bridge, and a life raft is placed on the inclined base; the bottom of the life raft outer plate is rotationally mounted on the bridge deck on the outer side of the inclined base; the bracket is longitudinally mounted at the inner side end of the inclined base; the first end of the first extension frame is rotationally mounted at the inner side end of the life raft outer plate, and the bottom of the second end of the first extension frame abuts against the upper end of the support; the first end of the second extension frame is rotationally mounted at the second end of the first extension frame, and a first cross rod is transversely arranged between the first end of the second extension frame; the first end of the binding belt is connected to the outer side end of the inclined base, the binding belt sequentially bypasses the periphery of the life raft, the top of the support and the first transverse rod and then is connected to the bottom of the support, and the binding belt is provided with a lock joint. Through the extension structure design, the technical problem that in the prior art, a life raft is prone to falling to a main deck in the throwing process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to a retractable life raft frame for a fully revolving tugboat. Background Art

[0002] Life rafts are key marine equipment for people to escape in emergency situations, and their role is second only to lifeboats. When a ship is in distress, the crew must be able to release the life raft accurately and quickly, and a life raft rack is usually set up to store the life raft. A key point in setting up a life raft rack is that it should be easy to release and not take up space, especially for full-revolving tugboats due to their own characteristics. Compared with other large ships, space utilization is particularly important. If the life raft is set on the main deck, it will affect the width of the deck passage and the crew's working space. Therefore, the design of the conventional full-revolving tugboat life raft rack is to design fixed storage brackets on both sides of the rear of the bridge deck. When it needs to be released, we open the lashing rigging to allow the life raft to slowly roll out from the bracket to the outside of the ship. This design has two disadvantages. The first is that due to the heavy weight of the life raft itself, it often requires the cooperation of multiple people to release it. The second is that since the half-width of the bridge deck is often smaller than the half-width of the main deck, the life raft often falls onto the main deck during throwing, causing the life raft to be damaged and unable to inflate in time, resulting in the inability of people on board to escape quickly. Summary of the invention

[0003] In view of this, the embodiment of the present invention provides a retractable life raft frame for a fully revolving tugboat. In view of the above two situations, the life raft frame is optimized, a new type of retractable life raft frame is adopted, automatic release and automatic recovery configurations are added, and the overall structure of the life raft frame is lightweight. Through the extended structural design, the technical problem of the life raft in the prior art that it is easy to fall to the main deck during the casting process is solved.

[0004] The embodiment of the present invention provides a retractable life raft frame for a fully revolving tugboat, comprising:

[0005] An inclined base, which is installed on the bridge deck, and the life raft is placed on the inclined base;

[0006] A life raft outer plate, the bottom of which is rotatably mounted on the bridge deck outside the inclined base;

[0007] A bracket mounted longitudinally on the inner end of the inclined base;

[0008] A first extension frame, a first end of which is rotatably mounted on the inner end of the life raft outer plate, and a second end of the first extension frame has a bottom against an upper end of the bracket;

[0009] A second extension frame, a first end of which is rotatably mounted on a second end of the first extension frame, and a first crossbar is disposed transversely between the first end of the second extension frame;

[0010] The first end of the lashing belt is connected to the outer end of the inclined base. The lashing belt is connected to the bottom of the bracket after passing around the outer periphery of the life raft, the top of the bracket, and the first cross bar in sequence. The lashing belt is provided with a locking joint.

[0011] Preferably, a notch is provided on the hull plate for throwing the life raft, and the bottom of the life raft outer plate is rotatably mounted on the bottom of the notch through a first rotating shaft; first ear plates are respectively provided at both ends of the life raft outer plate, and second ear plates are correspondingly provided on the hull plates on both sides of the notch, the first ear plate and the second ear plate are connected by a chain, and the chain is used to limit the life raft outer plate outward.

[0012] Preferably, the inclined base is inclined at a certain angle toward the outside, the life raft is located on the inclined base of the life raft outer plate and the bracket, the outer end of the inclined base is arranged close to the inner section of the first rotating shaft, and the life raft outer plate is inclined at a certain angle toward the inside, and the outer end of the inclined base is used to limit the life raft outer plate inwardly so that the life raft outer plate fills the gap.

[0013] Preferably, the first end of the first extension frame is rotated on the inner side of the upper end of the life raft outer plate through the second rotation shaft, and the upper end of the life raft outer plate protrudes from the second rotation shaft by a certain distance, which serves as an outward rotation limit of the first extension frame.

[0014] Preferably, the first end of the second extension frame is rotated on the second end of the first extension frame via a third rotating shaft, and the second end of the first extension frame protrudes a certain distance from the third rotating shaft to serve as an outward rotation limit for the second extension frame, and the inner side of the second extension frame is attached to the outer side of the bracket.

[0015] Preferably, a first cross beam is arranged on the top of the bracket, the bottom of the second end of the first extension frame abuts against the first cross beam, a second cross beam is arranged on the bottom of the bracket, and a deck locking ring is arranged on the second cross beam.

[0016] Preferably, a second cross bar is arranged laterally between the second ends of the second extension frame, and the lashing belt is connected to the deck locking ring after passing through the outer periphery of the life raft, the top of the bracket, the outer side of the first cross bar, and the inner side of the second cross bar in sequence.

[0017] Preferably, the locking joint includes a locking column arranged on the binding belt, wherein the locking column is provided with a latch hole and a locking port connected thereto, wherein a latch is movably arranged in the latch hole, and a safety pin for locking the latch is installed in the locking port.

[0018] Preferably, the bracket, the first extension frame and the second extension frame are frame structures.

[0019] Beneficial effects of the present invention:

[0020] 1. The present invention provides a retractable life raft frame for a fully revolving tugboat, which adopts a throwing structure with an extension structure, so that the life raft can be smoothly thrown into the sea to avoid being affected by the main deck main gear; at the same time, in the normal retracted state, the extension structure will be folded and fixed, and will not occupy the bridge deck space.

[0021] 2. The throwing structure of the present invention can facilitate the throwing and recovery of the life raft, greatly saving labor costs, improving efficiency and safety, avoiding the disadvantages of conventional multi-person operation that is time-consuming and labor-intensive and prone to damage caused by collision between the life raft body and the hull, and can achieve rapid and accurate release of lifesaving equipment, ensuring the rapid and safe escape of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0023] Figure 1 A side view of a life raft frame is shown;

[0024] Figure 2 An internal medial view is shown;

[0025] Figure 3 The diagram shows the extended structural state of the life raft when it is thrown;

[0026] Figure 4 A schematic diagram of the structure of the locking joint is shown;

[0027] Figure 5 A schematic diagram of the installation position of the life raft frame is shown. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-5As shown, an embodiment of the present invention provides a retractable life raft frame for a fully revolving tugboat, wherein an inclined base 5 is installed on a bridge deck, and a life raft is placed on the inclined base 5; the bottom of a life raft outer plate 2 is rotatably installed on the bridge deck outside the inclined base 5; specifically, a notch for throwing the life raft 7 is provided on a hull plate 8, and the bottom of the life raft outer plate 2 is rotatably installed on the bottom of the notch through a first rotating shaft 21; first ear plates 22 and 24 are respectively provided at both ends of the life raft outer plate 2, and second ear plates 81 are correspondingly provided on the hull plates 8 on both sides of the notch, and the first ear plates 22 and 24 and the second ear plates 81 are connected by a chain 25, and the chain 25 is used to limit the life raft outer plate 2 outward, and to pull the life raft outer plate 2 turned outward to prevent the life raft outer plate 2 from sagging downward.

[0030] The bracket 1, the first extension bracket 3, and the second extension bracket 4 are all frame structures. Specifically, the bracket 1 is longitudinally installed at the inner end of the inclined base 5, the top of the bracket 1 is provided with a first crossbeam 12, the bottom of the bracket 1 is provided with a second crossbeam 11, and the second crossbeam 11 is provided with a deck locking ring 62.

[0031] The inclined base 5 is inclined outward at a certain angle, so that when the life raft 7 is released, the life raft 7 can roll outward along the inclined base 5, reducing labor costs. The life raft 7 is located on the inclined base 5 of the life raft outer plate 2 and the bracket 1. In the normal contraction state, the life raft 7 is limited between the life raft outer plate 2 and the bracket 1, which ensures the stability of the life raft 7 and saves space.

[0032] The outer end of the inclined base 5 is arranged close to the inner section of the first rotating shaft 21, and the life raft outer plate 2 is inclined inwardly at a certain angle to avoid the need for external force to pull the life raft outer plate 2 to prevent it from tipping outward under normal conditions.

[0033] To this end, under normal conditions, the outer end of the inclined base 5 is placed against the inner end of the bottom of the life raft outer plate 2 to limit the life raft outer plate 2 inwardly so that the life raft outer plate 2 fills the gap while preventing the life raft outer plate 2 from tipping outwards.

[0034] The bottom of the second end of the first extension frame 3 abuts against the first crossbeam 12, that is, the first extension frame 3 is supported by the bracket 1 to ensure stability. The first end of the first extension frame 3 rotates on the inner side of the upper end of the life raft outer plate 2 through the second rotating shaft 23, and the upper end of the life raft outer plate 2 protrudes a certain distance from the second rotating shaft 23, which serves as the outward rotation limit of the first extension frame 3, and limits the first extension frame 3 to rotate within 180°.

[0035] The first end of the second extension frame 4 is rotated on the second end of the first extension frame 3 through the third rotation shaft 31, and the second end of the first extension frame 3 protrudes from the third rotation shaft 31 by a certain distance, which serves as the outward rotation limit of the second extension frame 4, and limits the second extension frame 4 to rotate within 180°. And the inner side of the second extension frame 4 is just in contact with the outer side of the bracket 1, ensuring the stability and compactness of the entire life raft frame. A first cross bar 41 is arranged between the first end of the second extension frame 4 in the horizontal direction; a second cross bar 42 is arranged between the second end of the second extension frame 4 in the horizontal direction.

[0036] The first end of the lashing belt 6 is connected to the outer end of the inclined base 5, and the lashing belt 6 is connected to the deck locking ring 62 after passing through the outer periphery of the life raft 7, the first crossbeam 12, the outer side of the first crossbar 41, and the inner side of the second crossbar 42 in sequence. At this time, through the action of the lashing belt 6, not only the life raft 7 is fixed on the inclined base 5, but also the lashing belt 6 is connected to the deck locking ring 62 at the bottom after passing through the first crossbar 41, that is, the second extension frame 4 is tightened and fixed, and because the second extension frame 4 is connected to the first extension frame 3, the first extension frame 3 is tightened and fixed on the first crossbeam 12, at this time, the life raft outer plate 2, the first extension frame and the second extension frame 4 are pulled in respectively, and the second extension frame 4 is limited to the first crossbeam 12, at this time, the entire life raft frame is tightened and fixed, that is, in the normal contraction state, the extension structure will be folded and fixed, will not occupy the bridge deck space, and ensure the stability of the life raft 7.

[0037] The binding strap 6 is provided with a locking joint 61 for opening the binding strap 6, and the locking joint 61 includes a locking column 65 arranged on the binding strap 6, and a latch hole and a locking opening 64 connected thereto are provided in the locking column 65, a latch hole is movably provided with a latch 63, and a safety pin 66 for locking the latch 63 is installed in the locking opening 64.

[0038] This patent adopts a new type of life raft frame that can be automatically retracted and extended, and adds automatic release and automatic recovery devices. At the same time, the life raft frame is made of high-strength aluminum alloy material as a whole, and the whole is lightweight.

[0039] Reinforced flat irons are welded on both sides of the end of the life raft frame, and holes are punched at the bottom of the reinforced flat irons and ear plates are added and holes are punched at the upper end to set a rotating shaft to facilitate the expansion and contraction of the life raft outer plate. The gap between the life raft outer plate and related structures and the bridge deck must be maintained at about 60mm to ensure the smooth expansion and contraction of the life raft frame.

[0040] When preparing to release the life raft, pull out the safety pin 66 and the latch 63 in sequence to release the life raft outer plate, flip the second extension frame 4 outward, and the second extension frame 4, the first extension frame 3 and the life raft outer plate 2 are unfolded outward in sequence and are affected by their respective limiting structures. Specifically, the chain 25 holds the life raft outer plate 2 to hold the turned-out life raft outer plate 2 to prevent the life raft outer plate 2 from sagging downward. The limiting structure at the end of the life raft outer plate 2 limits the first extension frame 3, and the limiting structure at the end of the first extension frame 3 limits the second extension frame 4.

[0041] Finally, the second extension frame 4, the first extension frame 3 and the life raft outer plate 2 will be unfolded in a straight line in the oblique downward direction. After being fully unfolded, the second extension frame 4 will protrude a certain distance from the main deck below, and at this time, under the action of the inclined base 5, the life raft 7 will automatically roll toward the ship's side along the predetermined track formed by the life raft outer plate and the telescopic bracket. One person can operate it, which greatly saves human resources. Because the half width of the bracket has exceeded the main hull after extension, the life raft can be smoothly rolled into the water, avoiding the possibility of the life raft 7 being thrown onto the main deck, so that the life raft 7 can be smoothly thrown into the sea, avoiding being affected by the main deck main gear and affecting its use.

[0042] When the life raft needs to be recovered, the life raft outer plate and the telescopic bracket (the second extension bracket 4 and the first extension bracket 3) are first unfolded, the life raft is hoisted on the telescopic bracket by the ship-borne crane, and then the second extension bracket 4 is retracted by the automatic stretching device, so that the telescopic bracket is slowly raised. When the life raft is higher than the bridge deck, the life raft will slide toward the inside of the ship along the predetermined track formed by the life raft outer plate and the telescopic bracket until it slides into place. At this time, the telescopic bracket will also be automatically retracted. When the telescopic bracket is in place, the latch 63 is inserted and the safety device is closed, thus completing the recovery process of the life raft.

[0043] The first advantage of the automatic release and recovery device of the life raft is its aesthetic appearance. When not in use, the life raft body is placed inside the life raft frame, and the outer plate of the life raft forms a whole with the hull plate, which is visually well received by users. The second point is that the automatic release and recovery device greatly saves labor costs, and is efficient and safe. It avoids the disadvantages of conventional multi-person operation that is time-consuming and labor-intensive, and is prone to damage caused by collision between the life raft body and the hull, and can achieve rapid and accurate release of lifesaving, ensuring the rapid and safe escape of personnel.

[0044] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A retractable life raft frame for a fully revolving tugboat, characterized in that: include: An inclined base, which is installed on the bridge deck, and the life raft is placed on the inclined base; A life raft outer plate, the bottom of which is rotatably mounted on the bridge deck outside the inclined base; A bracket mounted longitudinally on the inner end of the inclined base; A first extension frame, a first end of which is rotatably mounted on the inner end of the life raft outer plate, and a second end of the first extension frame has a bottom against an upper end of the bracket; A second extension frame, a first end of which is rotatably mounted on a second end of the first extension frame, and a first crossbar is disposed transversely between the first end of the second extension frame; The first end of the lashing belt is connected to the outer end of the inclined base. The lashing belt is connected to the bottom of the bracket after passing around the outer periphery of the life raft, the top of the bracket, and the first cross bar in sequence. The lashing belt is provided with a locking joint.

2. The retractable life raft frame for a fully revolving tugboat according to claim 1, characterized in that: A notch is provided on the hull plate for throwing the life raft, and the bottom of the life raft outer plate is rotatably mounted on the bottom of the notch through a first rotating shaft; first ear plates are respectively provided at both ends of the life raft outer plate, and second ear plates are correspondingly provided on the hull plates on both sides of the notch, and the first ear plate and the second ear plate are connected by a chain, and the chain is used to limit the life raft outer plate outward.

3. The retractable life raft frame for a fully revolving tugboat according to claim 2, characterized in that: The inclined base is inclined outward at a certain angle, the life raft is located on the inclined base of the life raft outer plate and the bracket, the outer end of the inclined base is arranged close to the inner section of the first rotating shaft, the life raft outer plate is inclined inward at a certain angle, and the outer end of the inclined base is used to limit the life raft outer plate inwardly so that the life raft outer plate fills the gap.

4. The retractable life raft frame for a fully revolving tugboat according to claim 3, characterized in that: The first end of the first extension frame is rotated on the inner side of the upper end of the life raft outer plate through the second rotation shaft, and the upper end of the life raft outer plate protrudes from the second rotation shaft by a certain distance, which serves as an outward rotation limit of the first extension frame.

5. The retractable life raft frame for a fully revolving tugboat according to claim 4, characterized in that: The first end of the second extension frame is rotated on the second end of the first extension frame through the third rotation shaft, and the second end of the first extension frame protrudes a certain distance from the third rotation shaft as an outward rotation limit of the second extension frame, and the inner side of the second extension frame is attached to the outer side of the bracket.

6. The retractable life raft frame for a fully revolving tugboat according to claim 5, characterized in that: A first crossbeam is arranged on the top of the bracket, the bottom of the second end of the first extension frame abuts against the first crossbeam, a second crossbeam is arranged on the bottom of the bracket, and a deck locking ring is arranged on the second crossbeam.

7. The retractable life raft frame for a fully revolving tugboat according to claim 6, characterized in that: A second cross bar is arranged laterally between the second ends of the second extension frame, and the lashing belt is connected to the deck locking ring after passing through the outer periphery of the life raft, the top of the bracket, the outer side of the first cross bar, and the inner side of the second cross bar in sequence.

8. The retractable life raft frame for a fully revolving tugboat according to claim 7, characterized in that: The locking joint comprises a locking column arranged on the binding belt, wherein a latch hole and a locking opening connected thereto are provided in the locking column, a latch hole is movably provided with a latch, and a safety pin for locking the latch is installed in the locking opening.

9. The retractable life raft frame for a fully revolving tugboat according to claim 1, characterized in that: The bracket, the first extension frame and the second extension frame are frame structures.

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