Marine rescue system

Abstract

The invention discloses a sea rescue system which comprises a flying disc type life buoy and a life buoy catching device, the flying disc type life buoy comprises an annular floating body and a water-soluble film system, and the water-soluble film system wraps the whole annular floating body; the water-soluble film system is provided with an inflation inlet in the range of the inner ring of the annular floating body, and the longitudinal section of the annular floating body is composed of two wing-like sections in mirror symmetry; and the life buoy capturing device is used for pulling back the life buoy. According to the sea rescue system provided by the invention, the life buoy adopts an asymmetric section structure and a water-soluble film system, so that efficient remote accurate throwing is realized, the aircraft system quickly positions the position of the life buoy through the visual capture system, the mooring rope is brought to the position of the life buoy, and the winch quickly tows the life buoy and personnel to a ship; rapid and long-distance rescue of the ship is achieved, rescue cost is reduced, and rescue efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of water rescue equipment, and specifically relates to a maritime rescue system. Background Technology

[0002] Traditional lifebuoys are bulky, have high air resistance, and short throwing distances. Furthermore, the large size of ships makes it difficult to quickly reach the lifebuoys and thus hinders rescue efforts for people in the water at greater distances. While other existing ship rescue equipment, such as inflatable life rafts or automatic throwing devices, can increase rescue distance, they are time-consuming to start, expensive, and complex to operate. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a maritime rescue system. The lifebuoy utilizes an asymmetrical cross-section structure and a water-soluble film system to achieve efficient and precise long-distance throwing. The aircraft system uses a visual capture system to quickly locate the lifebuoy, brings a cable to the lifebuoy's position, and a winch quickly tows the lifebuoy and personnel to the ship, enabling rapid long-distance ship rescue, reducing rescue costs, and improving rescue efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A maritime rescue system includes a disc-shaped lifebuoy and a lifebuoy retrieval device. The disc-shaped lifebuoy includes an annular float and a water-soluble film system. The water-soluble film system covers the entire exterior of the annular float. The water-soluble film system has an inflation port located within the inner ring of the annular float. The longitudinal section of the annular float has two mirror-symmetrical airfoil-like sections. The lifebuoy retrieval device is used to pull the lifebuoy back.

[0005] Furthermore, the annular float is formed by an upper ring and a lower ring that are interlocked. The upper ring is a convex semi-elliptical arc ring, and the lower ring is a concave semi-elliptical arc ring. The radius of curvature of the upper ring is smaller than that of the lower ring.

[0006] Furthermore, the outer diameter of the annular float is >600mm, the inner diameter of the annular float is >450mm, and the ratio of the radius of curvature of the upper annular body to the radius of curvature of the lower annular body is 1:1.2~1.5.

[0007] Furthermore, the water-soluble film system includes an elastic water-soluble film and a rigid water-soluble film. The elastic water-soluble film covers the outer wall of the upper ring body, and the edge of the elastic water-soluble film is bonded to the upper edge of the upper ring body. The inflation port is located on the elastic water-soluble film. The ratio of the inner diameter R1 of the annular float to the inflation bulge height h1 of the elastic water-soluble film is 1:0.1~0.2. The rigid water-soluble film is placed on the outer wall of the lower ring body, and the edge of the rigid water-soluble film is bonded to the lower edge of the rigid water-soluble film. The ratio of the inner diameter R1 of the annular float to the inflation bulge height h1 of the rigid water-soluble film is 1:0.05~0.08.

[0008] Furthermore, the lifebuoy retrieval device includes a rescue aircraft and a winch. The rescue aircraft includes an aircraft body, on which is equipped a night vision camera and a visual capture system for locating the lifebuoy, as well as a flight control system. The aircraft body is also equipped with a rope towing device for carrying and autonomously deploying and retrieving the cable. The winch is fixed to the ship and is used to tow the cable delivered by the aircraft, towing the lifebuoy and the rescued personnel. Hooks for connecting the lifebuoy retrieval device are mirror-symmetrically arranged on the upper edge of the annular float.

[0009] Furthermore, two horizontally extending inward grooves are provided on the outer peripheral sidewall of the annular float, and a paddle is placed inside the grooves.

[0010] Furthermore, the two slots are arranged in a mirror image symmetrically, the slots being arc-shaped slots with the same curvature as the annular float, and the paddles being arc-shaped paddles with the same curvature as the slots.

[0011] Furthermore, a safety rope for securing personnel is provided inside the inner ring of the annular float. The safety rope includes one securing rope and multiple traction ropes. The multiple traction ropes are evenly distributed on the inner edge of the annular float. One end of the traction rope is fixed to the side wall of the inner ring of the annular float, and the other end is a loop. Both ends of the securing rope are provided with locking assemblies. One end of the securing rope passes through the loops at the ends of the multiple traction ropes in sequence and is then fastened. After being fastened, the securing rope is suspended inside the life ring or adhered to the upper surface of the lower membrane.

[0012] A rescue method for the aforementioned maritime rescue system specifically includes the following steps: S1. Visually estimate the rescue distance, determine the inflation amount of the lifebuoy based on the rescue distance, and throw the disc-shaped lifebuoy at an elevation angle of 25°-45° towards the direction of the fall into the water. After the water-soluble film system is hydrolyzed, the person puts the lifebuoy under their arm and tightens the safety rope, and then takes out the paddle to row. S2. Control the rescue aircraft to fly to the location of the disc-shaped lifebuoy, and release the cable after accurate positioning through its visual capture system. After the personnel secure the lifebuoy to the hook, the rescue aircraft flies back to the ship. The personnel then attach the other end of the cable to the winch and begin towing the lifebuoy and personnel to the side of the ship. After the winch or ship crane is started to rescue the personnel to the ship, the safety rope is untied, the surface of the float is cleaned, and the aircraft returns to its original position.

[0013] The inflation volume determines the height of the diaphragm's inflation. Flight distance is directly proportional to the inflation volume; the greater the flight distance, the more inflation volume is required. Since flight distance is proportional to lift, and lift is related to flow velocity (higher flow velocity means lower pressure), a greater difference in the height of the upper and lower diaphragms results in a greater pressure difference and thus greater lift. The upper diaphragm has a higher height, faster flow velocity, and lower pressure, while the lower diaphragm has a lower height, slower flow velocity, and higher pressure. This pressure difference generates lift, supporting the lifebuoy's flight. Because the lifebuoy is circular, the diaphragms are also circular. Therefore, the height difference at the edge of the lifebuoy is small, resulting in less lift at the edge and greater lift at the center, leading to very stable, almost straight flight.

[0014] When a person falls into the water using the marine lifesaving system of this invention, the protective film is removed. The elastic, water-soluble film on the upper part of the float is inflated through the inflation port and thrown at a 25°-45° angle. In the air, the upper part of the lifebuoy experiences a high airflow velocity and low air pressure, while the lower part experiences a slow airflow velocity and high air pressure, creating lift and allowing the lifebuoy to be thrown further. Upon landing in the water, the water-soluble film dissolves rapidly. The person in the water can use the lifebuoy to wait for rescue by the ship or slide towards the ship using a paddleboard. The aircraft system quickly locates the lifebuoy using a visual capture system, brings a cable to the lifebuoy's position, and hooks it onto the lifebuoy's hook. The winch quickly tows the lifebuoy and the person to the edge of the ship, rescuing the person and bringing them aboard. The rescue is then complete. The lifebuoy is cleaned, any remaining water-soluble film system adhesive is removed, a new water-soluble film system and protective film are applied, and the lifebuoy is returned to its original position. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the frisbee-type lifebuoy described in this invention.

[0016] Figure 2 This is a side view of the frisbee-shaped lifebuoy described in this invention.

[0017] Figure 3 This is a schematic diagram of the structure of the rescue aircraft described in this invention.

[0018] Figure 4 This is a schematic diagram of the rescue principle of the maritime rescue system described in this invention.

[0019] Among them, 1-ringed float, 2-elastic water-soluble film, 3-hard plastic water-soluble film, 4-inflation port, 5-traction rope, 6-mooring rope, 7-hook, 8-paddle, 9-groove, 10-locking assembly, 11-aircraft body, 12-rope towing device, 13-hull, 14-winch, 15-rescue crane, 16-cable. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-4 As shown, a maritime rescue system includes a disc-shaped lifebuoy and a lifebuoy retrieval device. The disc-shaped lifebuoy comprises an annular float 1 and a water-soluble film system. The water-soluble film system covers the entire exterior of the annular float 1. The water-soluble film system has an inflation port 4 located within the inner ring of the annular float 1. The longitudinal section of the annular float 1 has two mirror-symmetrical airfoil-like sections. The lifebuoy retrieval device is used to pull the lifebuoy back. The water-soluble film system dissolves upon contact with water, and the float provides buoyancy.

[0022] Specifically, the annular float 1 is formed by an upper ring 101 and a lower ring 102 that are interlocked. The upper ring 101 is a convex semi-elliptical arc ring, and the lower ring 102 is a concave semi-elliptical arc ring. The radius of curvature of the upper ring 101 is smaller than the radius of curvature of the lower ring 102.

[0023] Furthermore, the outer diameter of the annular float 1 is greater than 600 mm, the inner diameter of the annular float 1 is greater than 450 mm, and the ratio of the radius of curvature of the upper annular body 101 to the radius of curvature of the lower annular body 102 is 1:1.2~1.5.

[0024] The water-soluble film system includes an elastic water-soluble film 2 and a rigid water-soluble film 3. The elastic water-soluble film 2 is wrapped around the outer wall of the upper ring 101, and the edge of the elastic water-soluble film 2 is bonded to the upper edge of the upper ring 101. The air inlet 4 is provided on the elastic water-soluble film 2. The ratio of the inner diameter R1 of the annular float 1 to the inflation height h1 of the elastic water-soluble film 2 is 1:0.1~0.2. The rigid water-soluble film 3 is placed on the outer wall of the lower ring 102, and the edge of the rigid water-soluble film 3 is bonded to the lower edge of the rigid water-soluble film 3. The ratio of the inner diameter R1 of the annular float 1 to the inflation height h1 of the rigid water-soluble film 3 is 1:0.05~0.08.

[0025] The lifebuoy retrieval device includes a rescue aircraft and a winch 14. The rescue aircraft includes an aircraft body 11, on which a night vision camera and visual capture system for locating the lifebuoy, as well as a flight control system, are installed. A rope towing device 12 for carrying and autonomously deploying and retrieving the cable 16 is also installed on the aircraft body 11. The winch 14 is fixed to the ship and is used to tow the cable 16 delivered by the aircraft, towing the lifebuoy and the rescued personnel. Hooks 7 for connecting the lifebuoy retrieval device are provided mirror-symmetrically on the upper edge of the annular float 1.

[0026] The rescue aircraft can quickly and accurately fly to the location of the lifebuoy. The rope towing device 12 is an autonomously retractable cable 16, enabling the aircraft system to quickly carry the cable 16 to the location of the lifebuoy. The winch 14 is a ship cable winch 14. When the aircraft system quickly delivers the cable 16 to the location of the lifebuoy and hooks it onto the lifebuoy hook 7, the winch 14 tows the lifebuoy and personnel to the edge of the ship and rescues the personnel onto the ship, achieving rapid long-distance ship rescue.

[0027] In some embodiments, two horizontally extending inward grooves 9 are provided on the outer peripheral sidewall of the annular float 1, and a paddle 8 is placed inside the grooves 9.

[0028] Furthermore, the two grooves 9 are arranged in a mirror-symmetrical manner. The groove 9 is an arc-shaped groove with the same curvature as the annular float 1, and the paddle 8 is an arc-shaped paddle with the same curvature as the groove 9. In use, pressing one end will expose the paddle handle at the other end, allowing it to be removed for paddling.

[0029] In some embodiments, a safety rope for securing personnel is provided inside the inner ring of the annular float 1. The safety rope includes one securing rope 6 and multiple traction ropes 5. The multiple traction ropes 5 are evenly distributed on the inner edge of the annular float 1. One end of each traction rope 5 is fixed to the inner ring sidewall of the annular float 1, and the other end is a loop. Both ends of the securing rope 6 are provided with locking assemblies 10. One end of the securing rope 6 passes through the loops at the ends of the multiple traction ropes 5 in sequence and is then fastened. After being fastened, the securing rope 6 is suspended inside the life ring or adhered to the upper surface of the lower membrane.

[0030] After the aircraft body 11 attaches one end of cable 16 to the lifebuoy, the other end is connected to a winch. The winch retracts, pulling the lifebuoy close to the side of the ship. Then, the hook below the rescue crane 15 hooks the connection of cable 16, lifting the lifebuoy and personnel onto the deck. The example in this diagram is only a simple rescue rope, tied only around the rescuer's waist. It could also be a full-body rescue rope, similar to those used in bungee jumping and rock climbing, so that even if the person being rescued does not have the strength to hold the rope, they can still be hoisted onto the ship.

[0031] A rescue method for the aforementioned maritime rescue system specifically includes the following steps: S1. Visually estimate the rescue distance, determine the inflation amount of the lifebuoy based on the rescue distance, and throw the disc-shaped lifebuoy at an elevation angle of 25°-45° towards the direction of the fall into the water. After the water-soluble film system is hydrolyzed, the person puts the lifebuoy under the arm and tightens the safety rope, and then takes out the paddle 8 to paddle. S2. Control the rescue aircraft to fly to the location of the disc-shaped lifebuoy, and release the cable 16 after accurate positioning through its visual capture system. After the personnel secure it to the hook 7, the rescue aircraft flies back to the ship. The personnel then attach the other end of the cable 16 to the winch 14 and begin towing the lifebuoy and personnel to the side of the ship. After starting the winch 14 or the ship crane to rescue the personnel to the ship, the safety rope is untied, the surface of the float is cleaned, and the aircraft returns to its original position.

[0032] Those skilled in the art should understand that the above description is merely a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A maritime rescue system, characterized in that, The device includes a disc-shaped lifebuoy and a lifebuoy retrieval device. The disc-shaped lifebuoy comprises an annular float and a water-soluble film system. The water-soluble film system covers the entire exterior of the annular float and has an air inlet located within the inner ring of the annular float. The longitudinal section of the annular float is two mirror-symmetrical airfoil-like sections. The lifebuoy retrieval device is used to pull the lifebuoy back.

2. The maritime rescue system according to claim 1, characterized in that, The annular float is formed by an upper ring and a lower ring that are interlocked. The upper ring is a convex semi-elliptical arc ring, and the lower ring is a concave semi-elliptical arc ring. The radius of curvature of the upper ring is smaller than that of the lower ring.

3. The maritime rescue system according to claim 2, characterized in that, The outer diameter of the annular float is >600mm, the inner diameter of the annular float is >450mm, and the ratio of the radius of curvature of the upper annular body to the radius of curvature of the lower annular body is 1:1.2~1.

5.

4. The maritime rescue system according to claim 3, characterized in that, The water-soluble film system includes an elastic water-soluble film and a rigid water-soluble film. The elastic water-soluble film covers the outer wall of the upper ring body, and the edge of the elastic water-soluble film is bonded to the upper edge of the upper ring body. The inflation port is located on the elastic water-soluble film. The ratio of the inner diameter R1 of the annular float to the inflation bulge height h1 of the elastic water-soluble film is 1:0.1~0.

2. The rigid water-soluble film is placed on the outer wall of the lower ring body, and the edge of the rigid water-soluble film is bonded to the lower edge of the rigid water-soluble film. The ratio of the inner diameter R1 of the annular float to the inflation bulge height h1 of the rigid water-soluble film is 1:0.05~0.

08.

5. The maritime rescue system according to any one of claims 1 to 4, characterized in that, The lifebuoy retrieval device includes a rescue aircraft and a winch. The rescue aircraft includes an aircraft body equipped with a night vision camera and a visual capture system for locating the lifebuoy, as well as a flight control system. The aircraft body is also equipped with a rope towing device for carrying and autonomously deploying and retrieving the cable. The winch is fixed to the ship and is used to tow the cable delivered by the aircraft, towing the lifebuoy and the rescued personnel. Hooks for connecting the lifebuoy retrieval device are mirror-symmetrically arranged on the upper edge of the annular float.

6. The maritime rescue system according to claim 5, characterized in that, Two horizontally extending inward grooves are provided on the outer circumferential sidewall of the annular float, and paddles are placed in the grooves.

7. The maritime rescue system according to claim 6, characterized in that, The two slots are arranged in a mirror image symmetrically. The slots are arc-shaped slots with the same curvature as the annular float, and the paddles are arc-shaped paddles with the same curvature as the slots.

8. The maritime rescue system according to claim 6, characterized in that, A safety rope for securing personnel is provided inside the inner ring of the annular float. The safety rope includes one tethering rope and multiple traction ropes. The multiple traction ropes are evenly distributed on the inner edge of the annular float. One end of the traction rope is fixed to the side wall of the inner ring of the annular float, and the other end is a loop. Both ends of the tethering rope are provided with locking assemblies. One end of the tethering rope passes through the loops at the ends of the multiple traction ropes in sequence and is then fastened. After being fastened, the tethering rope is suspended inside the life ring or adhered to the upper surface of the lower membrane.

9. A rescue method employing any one of the maritime rescue systems described in claims 6 to 8 above, characterized in that, Specifically, the following steps are included: S1. Visually estimate the rescue distance, determine the inflation amount of the lifebuoy based on the rescue distance, and throw the disc-shaped lifebuoy at an elevation angle of 25°-45° towards the direction of the fall into the water. After the water-soluble film system is hydrolyzed, the person puts the lifebuoy under their arm and tightens the safety rope, and then takes out the paddle to row. S2. Control the rescue aircraft to fly to the location of the disc-shaped lifebuoy, and release the cable after accurate positioning through its visual capture system. After the personnel secure the lifebuoy to the hook, the rescue aircraft flies back to the ship. The personnel then attach the other end of the cable to the winch and begin towing the lifebuoy and personnel to the side of the ship. After the winch or ship crane is started to rescue the personnel to the ship, the safety rope is untied, the surface of the float is cleaned, and the aircraft returns to its original position.

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