Marine rescue net and rescue system

Abstract

The invention provides a maritime rescue net and a rescue system, and the maritime rescue net comprises a floating mechanism which comprises a mounting frame, and a floating core is arranged in the mounting frame; the salvage and rescue mechanism comprises a swing ring assembly and a salvage and rescue net, the swing ring assembly comprises a semi-ring body and an elastic driving part, the semi-ring body is arranged in the space defined by the mounting frame, the two ends of the semi-ring body are rotationally connected to the mounting frame, the elastic driving part is arranged between the mounting frame and the semi-ring body, and the salvage and rescue net is unfolded / folded through swing of the semi-ring body. A mounting foundation is provided for the salvage mechanism through the floating mechanism, meanwhile, the salvage mechanism can be connected with external flight equipment so that the salvage mechanism can move on the sea conveniently, and a swing ring assembly in the salvage mechanism can drive a salvage net on the swing ring assembly to carry out salvage action in a sea area where to-be-rescued personnel are located; and rescue can be efficiently and stably completed without physical strength and consciousness of people falling into water. Therefore, the method has the advantages of wide application scene, high rescue success rate and stability, convenience in operation, no need of cooperation of drowning personnel and the like.

Description

Technical Field

[0001] This invention relates to the field of maritime rescue technology, specifically to a maritime rescue network and rescue system. Background Technology

[0002] The increasing frequency of marine transportation, offshore operations, and water recreation activities means that the risk of maritime safety accidents remains constant, making timely and effective rescue of people who have fallen overboard a crucial aspect of ensuring their safety. However, currently widely used maritime rescue equipment generally suffers from limited functionality and cumbersome operating procedures. Furthermore, its rescue effectiveness largely depends on the on-site intervention of rescue personnel or the self-cooperation ability of the person in the water, making it difficult to meet the rescue needs of various scenarios involving falling overboard in complex sea conditions, especially lacking effective rescue methods for people who have lost their ability to move independently.

[0003] Among existing rescue technologies, helicopter rescue is a common method for long-distance maritime rescue, but this method has significant limitations. During the rescue, professional rescuers need to descend to the rescue point at sea using rappelling ropes, which not only involves long preparation times and is greatly affected by weather conditions, but more importantly, rescuers are directly exposed to complex sea conditions and potential dangers, facing multiple risks such as rope swaying, loss of control of the person in the water, and sudden storms, resulting in a low safety factor for the rescue operation. Furthermore, for persons in the water who have lost consciousness or limb mobility, this method is difficult to use for rapid and stable transfer, limiting rescue efficiency.

[0004] As a close-range rescue tool, the surface rescue basket also has significant shortcomings. This equipment typically requires a rescue vessel to approach the person in the water before deploying it. A successful rescue hinges on the person having sufficient strength and awareness to actively cooperate and climb into the basket on their own. In actual rescue scenarios, people in the water often experience exhaustion, confusion, or even unconsciousness due to drowning, low temperatures, or injuries, making it impossible for them to roll over independently. This renders the rescue basket ineffective, causing a missed opportunity for optimal rescue.

[0005] While new equipment such as U-shaped electric lifebuoys that have emerged in recent years have made innovations in power drive, they still do not reduce the need for active cooperation from people who have fallen into the water. This type of equipment relies on the person remaining conscious and actively grasping the handles with both hands to achieve an effective rescue. For people who have lost the ability to grasp or are unconscious due to impact, shock, or other reasons, the rescue effect remains unsatisfactory. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem that rescue equipment in the prior art relies too much on the autonomous cooperation of people who have fallen into the water, and to provide a maritime rescue network.

[0007] To solve the above-mentioned technical problems, the present invention provides a marine rescue net, comprising: a floating mechanism including an installation frame and a buoyant core therein; and a rescue mechanism including a swing ring assembly and a rescue net. The swing ring assembly includes a semi-ring and an elastic drive member. The semi-ring is disposed within the space enclosed by the installation frame, with its two ends rotatably connected to the installation frame. The elastic drive member is disposed between the installation frame and the semi-ring to drive the semi-ring to swing and flip around a rotation center line. One side of the rescue net is detachably connected to the installation frame, and the other side is detachably connected to the semi-ring to open / close through the swing of the semi-ring.

[0008] In one embodiment of the present invention, the swing ring assembly further includes a rotating shaft and two limiting plates. The mounting frame passes through the middle of the rotating shaft and is fixedly connected to the semi-ring body. The two limiting plates are respectively disposed on the inner and outer sides of the frame body and are respectively connected to the two ends of the rotating shaft.

[0009] In one embodiment of the present invention, the mounting frame includes a frame body and two connecting plates, the two connecting plates being respectively disposed on opposite sides of the frame body, the float being disposed inside the frame body, and the two ends of the semi-ring body being rotatably connected to the two connecting plates respectively.

[0010] In one embodiment of the present invention, the connecting plate includes a top plate and two side plates. The connecting plate is fastened to the frame. The two ends of the semi-ring pass through the two side plates, and the top plate restricts its rotation angle.

[0011] In one embodiment of the present invention, the connecting plate further includes a first hook disposed on the side plate, a second hook is provided at the end of the semi-ring body, and the two ends of the elastic drive member are respectively sleeved on the first hook and the second hook.

[0012] In one embodiment of the present invention, the floating mechanism further includes a frame suspension rope, and the rescue mechanism further includes a net suspension rope. Both the frame suspension rope and the net suspension rope are connected to the flight equipment. The mounting frame is disposed on the frame suspension rope, and the rescue net is connected to the net suspension rope to be closed by the net suspension rope.

[0013] In one embodiment of the present invention, the rescue mechanism further includes Velcro, and the rescue net is attached to the mounting frame and the semi-ring body by the Velcro. During the lifting process, the rescue net detaches from the semi-ring body and the mounting frame due to gravity and is then secured by the net's suspension rope.

[0014] In one embodiment of the present invention, the rescue mechanism further includes a locking component, which includes a locking block, a locking pin, and a strap. The locking block is fixed to the mounting frame, and the strap is wrapped around and fixed to the mounting frame and the semi-ring. Both ends of the strap are sleeved on the locking pin, and the locking pin is detachably inserted into the locking block to lock / release the strap.

[0015] In one embodiment of the present invention, the locking component further includes a fixing block and an unlocking rope. The fixing block is fixed on the mounting frame and is provided corresponding to the locking block. The locking pin can pass through the fixing block and be inserted into the locking block. The locking pin has a pull ring at one end away from the locking block. One end of the unlocking rope is connected to the pull ring, and the other end is connected to the flight equipment.

[0016] The present invention also provides a rescue system, which includes the above-mentioned maritime rescue net and flying equipment.

[0017] The technical solution of the present invention has the following advantages compared with the prior art: The maritime rescue net and rescue system described in this invention provide a foundation for the rescue mechanism through a floating mechanism, and can also be connected to external flying equipment for easy movement at sea. The pendulum ring component in the rescue mechanism can drive the rescue net on it to carry out rescue operations in the sea area where the person to be rescued is located, and the rescue can be completed efficiently and stably without the person who fell into the water having physical strength and consciousness.

[0018] Compared with conventional rescue techniques at present, this application has the advantages of wide applicability, high success rate and stability of rescue, ease of operation and no need for cooperation from people who have fallen into the water, providing a new development idea for maritime rescue technology. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of the marine rescue net in the deployed state according to a preferred embodiment of the present invention; Figure 2 yes Figure 1 A three-dimensional structural diagram of the floating mechanism and some of the salvage mechanisms in the maritime rescue network shown. Figure 3 yes Figure 1 A three-dimensional structural diagram of the installation frame, swing ring assembly, and locking assembly in the shown maritime rescue network; Figure 4 yes Figure 1 A three-dimensional structural diagram of the buoy and pendulum ring assembly in the maritime rescue net shown. Figure 5 yes Figure 1 A three-dimensional structural diagram of the pendulum ring component in the maritime rescue net shown. Figure 6 yes Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 yes Figure 3 Enlarged structural diagram at point B in the middle.

[0021] Explanation of reference numerals in the accompanying drawings: 100, Floating mechanism; 110, Mounting frame; 111, Frame body; 112, Connecting plate; 1121, First hook; 120, Buoyancy core; 130, Frame lifting rope; 200, Rescue mechanism; 210, Swing ring assembly; 211, Semi-ring body; 2111, Second hook; 212, Rotating shaft; 213, Limiting plate; 214, Elastic drive component; 220, Rescue net; 230, Net lifting rope; 240, Locking assembly; 241, Fixing block; 242, Locking block; 243, Locking pin; 2431, Pull ring; 244, Hanging ring; 245, Unlocking rope; 1001, Rotation center line. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0023] Example 1:

[0024] See Figures 1 to 7 As shown, this embodiment provides a marine rescue net, which includes: a floating mechanism 100, the floating mechanism 100 including an installation frame 110, the installation frame 110 having a float core 120; and a rescue mechanism 200, the rescue mechanism 200 including a swing ring assembly 210 and a rescue net 220. The swing ring assembly 210 includes a semi-ring 211 and an elastic drive member 214. The semi-ring 211 is disposed inside the space enclosed by the installation frame 110, and its two ends are rotatably connected to the installation frame 110. The elastic drive member 214 is disposed between the installation frame 110 and the semi-ring 211 to drive the semi-ring 211 to swing and flip around the rotation center line 1001. One side of the rescue net 220 is detachably connected to the installation frame 110, and the other side is detachably connected to the semi-ring 211, so as to open / close by the swing of the semi-ring 211.

[0025] In this embodiment, the floating mechanism 100 serves as the buoyancy support and basic installation carrier for the entire rescue net, providing the device with self-sustaining capability on the sea surface. The installation frame 110 acts as the skeleton of the overall device, providing stable installation benchmarks and connection points for components such as the float core 120 and the rescue mechanism 200, ensuring the assembly accuracy and coordinated operation of each structure. Furthermore, it protects core components such as the float core 120 and the pendulum ring assembly 210, reducing damage from wave impacts and collisions with floating objects. Its frame structure also provides sufficient space for rescue operations, preventing interference between components. The float core 120 is the core source of buoyancy for the device and can be made of lightweight, high-buoyancy components such as closed-cell foam or buoyancy material blocks. This allows the entire rescue net to float stably on the sea surface, ensuring that the device itself does not sink and maintaining sufficient buoyancy margin even after carrying a person who has fallen into the water, providing reliable support and preventing secondary sinking. This invention does not limit the specific type of float core 120.

[0026] Furthermore, the mounting frame 110 in this embodiment includes a frame 111 and two connecting plates 112. The two connecting plates 112 are respectively disposed on opposite sides of the frame 111. The float 120 is disposed inside the frame 111. The two ends of the semi-ring 211 are rotatably connected to the two connecting plates 112. The frame 111 is the skeleton of the mounting frame 110. The frame structure of the frame 111 provides structural rigidity for the entire rescue net device, ensuring the stability of the device under complex sea conditions. It also provides assembly interfaces for the rescue mechanism 200, and potentially additional positioning modules, serving as an integrated carrier for various functional components. Two connecting plates 112 are fixed on opposite sides of the frame 111, providing precise rotational hinge points for the semi-ring 211, so that the two ends of the semi-ring 211 can form a stable rotating pair with the connecting plates 112, ensuring that the semi-ring 211 can swing and flip smoothly and without jamming around the preset rotation center line 1001, and ensuring the power transmission efficiency of the swing ring assembly 210.

[0027] Specifically, in this embodiment, the connecting plate 112 includes a top plate and two side plates. The connecting plate 112 is fastened to the frame 111, and the two ends of the semi-ring 211 pass through the two side plates, with the top plate limiting its rotation angle. The connecting plate 112 is fastened to the frame 111, achieving a quick and stable connection with the frame 111, facilitating later disassembly and maintenance, and providing a stable support foundation for the rotation of the semi-ring 211. The two side plates are parallel and spaced apart, forming a space to accommodate the ends of the semi-ring 211. The two ends of the semi-ring 211 pass through the two side plates, allowing for smooth and non-offset swinging based on the rotating joints formed by the side plates. At the same time, the side plates also provide protection for the rotating connection parts. The top plate is connected to the top of the two side plates. This not only connects the two side plates into a whole to improve the structural rigidity of the connecting plate 112, but also precisely limits the maximum rotation angle of the semi-ring 211 to 180° through mechanical blocking. This avoids damage to the rescue net 220 due to excessive opening, and ensures that the semi-ring 211 drives the rescue net 220 to form a suitable space for rescue. At the same time, it can also limit the semi-ring 211 from excessively retracting when the device is not triggered, preventing it from being squeezed and collided with components such as the frame 111 and the float 120, thus ensuring the stability of the device in its retracted state.

[0028] The connecting plate 112 further includes a first hook 1121 disposed on the side plate, and a second hook 2111 provided at the end of the semi-ring 211. The two ends of the elastic drive member 214 are respectively sleeved on the first hook 1121 and the second hook 2111. The first hook 1121 on the connecting plate 112, the second hook 2111 at the end of the semi-ring 211, and the elastic drive component 214 together constitute the power transmission system of the swing ring assembly 210. The first hook 1121 on the side plate provides a stable fixed support for the elastic drive component 214, ensuring no displacement during power transmission. The second hook 2111 at the end of the semi-ring 211 serves as the load-end connection point. Its relative position with the first hook 1121 maximizes the conversion of the potential energy of the elastic drive component 214 into the rotational power of the semi-ring 211. The two are connected to the elastic drive component 214 by a sleeve connection, which not only achieves direct and efficient power transmission, but also locks the pre-tightened energy storage state of the elastic drive component 214 when the device is not triggered, and can quickly release the potential energy to drive the semi-ring 211 to rotate after triggering, meeting the response requirements of maritime emergency rescue. At the same time, this hook connection also greatly reduces the difficulty of disassembling and maintaining the elastic drive component 214, and facilitates the replacement of drive components with different elasticity levels to adapt to various rescue scenarios.

[0029] Furthermore, the elastic drive component 214 is the power source for the swing of the semi-ring 211. It is typically made of elastic components such as torsion springs or tension springs, and stores elastic potential energy in advance. When the device arrives at the rescue point and triggers the unlocking mechanism, the elastic drive component 214 releases its potential energy, which can quickly drive the semi-ring 211 to complete the flipping action without external power input, thereby enabling the automatic opening of the rescue net 220, ensuring the timeliness of the rescue, and adapting to unmanned rescue scenarios.

[0030] Furthermore, in this embodiment, the floating mechanism 100 also includes a frame hoisting rope 130, which is connected to the flight equipment. The mounting frame 110 is mounted on the frame hoisting rope 130. The frame hoisting rope 130 relies on the flight equipment to quickly deploy the maritime rescue net to a distant rescue location in complex sea conditions. After the rescue operation is completed, the rescue net carrying the person in the water can be hoisted to a safe area through the frame hoisting rope 130 without the need for rescuers to go into the water to connect it. This reduces the operational risks for rescuers and enables the rapid transfer of the person in the water.

[0031] The rescue mechanism 200 is the core module for realizing the automatic rescue function. The swing ring assembly 210 is the power actuator that drives the opening and closing of the rescue net 220. The semi-ring 211 serves as a linkage support for the rescue net 220, with both ends rotatably connected to the mounting frame 110, allowing it to swing and flip at large angles around the rotation center line 1001. In the untriggered state, the semi-ring 211 is in a retracted posture, keeping the rescue net 220 folded and stored for easy storage and deployment. After triggering, the semi-ring 211 can quickly flip to an open posture, causing the rescue net 220 to unfold synchronously, forming a space to enclose a person who has fallen into the water.

[0032] In this embodiment, the swing ring assembly 210 further includes a rotating shaft 212 and two limiting plates 213. The mounting frame 110 passes through the middle of the rotating shaft 212 and is fixedly connected to the semi-ring body 211. The two limiting plates 213 are respectively disposed on the inner and outer sides of the frame body 111 and are respectively connected to the two ends of the rotating shaft 212. The rotating shaft 212 has a mounting frame 110 passing through its middle section and is fixedly connected to the semi-ring 211. It serves as the core rotation axis for the semi-ring 211's swing around the mounting frame 110, providing a precise rotational reference for the semi-ring 211's flipping motion and ensuring the consistency of its swing trajectory. It also rigidly connects the semi-ring 211 to the mounting frame 110, transmitting the power of the elastic drive component 214 and the load during the semi-ring 211's swing. Two limiting plates 213 are respectively located on the inner and outer sides of the frame 111 and connected to both ends of the rotating shaft 212. These plates not only axially limit the rotating shaft 212, preventing axial movement during rotation that could affect the swing stability of the semi-ring 211, but also protect the connection between the rotating shaft 212 and the mounting frame 110. Furthermore, the limiting plates have pre-drilled grooves for rubber band installation, allowing the elastic drive component to wrap around these grooves and provide more driving torque to the rotating shaft 212.

[0033] The rescue net 220 is a functional component that directly contacts and supports people who have fallen into the water. Its two sides are detachably connected to the mounting frame 110 and the semi-ring 211, respectively. The rescue net 220 can switch between closing and opening forms as the semi-ring 211 swings. When opened, it forms a pocket-shaped or net-shaped space to completely wrap up people who have lost the ability to move independently, preventing them from slipping out of the device. When closed, it can provide a stable restraint for people who have fallen into the water, preventing them from shifting during the ups and downs of the waves.

[0034] Furthermore, the rescue mechanism 200 in this embodiment also includes a net suspension rope 230. Both the frame suspension rope 130 and the net suspension rope 230 are connected to the flight equipment. The rescue mechanism 200 also includes Velcro. The rescue net 220 is attached to the mounting frame 110 and the semi-ring 211 by the Velcro. During the lifting process, the rescue net 220 detaches from the semi-ring 211 and the mounting frame 110 due to gravity and is closed by the net suspension rope 230. The frame hoisting rope 130 is responsible for accurately delivering the entire rescue net device to the rescue point, while the net body hoisting rope 230 undertakes the core functions of subsequent hoisting and closing. The rescue net 220 is attached to the installation frame 110 and the semi-ring 211 respectively via Velcro. This connection method ensures that the rescue net 220 can be smoothly opened to wrap the person in the water when the semi-ring 211 is flipped, and also has the characteristic of easy detachment. When the device completes the rescue and the flying equipment lifts the rescue net, the rescue net 220 will automatically detach from the installation frame 110 and the semi-ring 211 under the action of gravity. At the same time, the net body hoisting rope 230 will automatically close with the lifting action, which can securely bind the person in the water inside the net and prevent them from slipping during hoisting. This simplifies the separation process of the rescue net and the main body of the device, ensures the safety of the hoisting stage, and greatly improves the automation and convenience of the entire rescue process. The connection from sea surface retrieval to aerial transfer can be completed without on-site operation by personnel.

[0035] In this embodiment, the rescue mechanism 200 further includes a locking component 240, which includes a locking block 242, a locking pin 243, and a strap. The locking block 242 is fixed to the mounting frame 110, and the strap wraps around and fixes the mounting frame 110 and the semi-ring 211. Both ends of the strap are sleeved on the locking pin 243, and the locking pin 243 is detachably inserted into the locking block 242 to lock / release the strap.

[0036] Specifically, the locking block 242 is fixedly mounted on the mounting frame 110, providing a precise insertion and positioning point for the locking pin 243, and is the basic support component of the entire locking structure; the strap (not shown in the figure) wraps around and binds the mounting frame 110 and the semi-ring 211, which can firmly restrict the semi-ring 211 in a retracted posture, ensuring that the semi-ring 211 will not be accidentally triggered and overturned due to the pre-tension force of the elastic drive component 214 or external bumps during storage, transportation and aerial deployment, and at the same time, preventing the rescue net 220 from opening prematurely and affecting the deployment accuracy; the two ends of the strap are sleeved on the locking pin 243 through the hanging rings 244, locking The locking pin 243 is detachably inserted into the locking block 242. Under normal conditions, the insertion of the locking pin 243 can securely limit the strap and maintain the restraint and locking of the semi-ring 211. When the device arrives at the rescue point and the rescue operation needs to be started, the locking pin 243 can be pulled out from the locking block 242. The strap will lose its restraint and quickly loosen. The semi-ring 211 will then be flipped under the action of the elastic drive 214, which will drive the rescue net 220 to open and achieve the rescue. This locking structure not only ensures the stability of the device in the non-working state, but also realizes the convenience and controllability of rescue triggering, which is suitable for the rapid response needs of maritime emergency rescue.

[0037] Furthermore, the locking assembly 240 also includes a fixing block 241 and an unlocking rope 245. The fixing block 241 is fixed on the mounting frame 110 and is set corresponding to the locking block 242. The locking pin 243 can pass through the fixing block 241 and be inserted into the locking block 242. The locking pin 243 has a pull ring 2431 at one end away from the locking block 242. One end of the unlocking rope 245 is connected to the pull ring 2431, and the other end is connected to the flight equipment. The newly added fixing block 241 and unlocking rope 245 in the locking assembly 240, together with the original locking block 242, locking pin 243, and strap, form a remotely controllable unlocking trigger system, further improving the automation and safety of the rescue device: the fixing block 241 is fixed to the mounting frame 110 and correspondingly set with the locking block 242; the locking pin 243 needs to pass through the fixing block 241 before being inserted into the locking block 242. This dual-point limiting structure can greatly improve the installation stability of the locking pin 243, preventing it from loosening or falling off under dynamic conditions such as device deployment and wave impact, thereby ensuring the reliable locking state of the semi-ring 211; the pull ring 2431 set at the end of the locking pin 243 away from the locking block 242 is for... The unlocking rope 245 provides a stable connection point. One end of the unlocking rope 245 is connected to the pull ring 2431, and the other end is connected to the flight equipment. This design enables remote control of the rescue trigger action. After the device is deployed to the designated rescue point by the flight equipment, the unlocking rope 245 can be pulled remotely to drive the locking pin 243 out from the locking block 242 and the fixing block 241, thereby loosening the strap and causing the semi-ring 211 to flip and open the rescue net 220 under the action of the elastic drive member 214. The entire unlocking process does not require personnel to approach the sea surface, which not only avoids the risks of on-site operation at sea, but also allows for precise control of the rescue trigger timing. It is suitable for unmanned, long-distance maritime emergency rescue scenarios, ensuring the timeliness and controllability of rescue actions.

[0038] Example 2:

[0039] This embodiment provides a rescue system, which includes the maritime rescue network and flying equipment described in Embodiment 1.

[0040] In summary, the maritime rescue net and rescue system described in this invention provide a foundation for the rescue mechanism 200 via the floating mechanism 100, and can also be connected to external flying equipment for easy movement at sea. The pendulum ring assembly 210 in the rescue mechanism 200 can drive the rescue net 220 to perform rescue operations in the sea area where the person to be rescued is located, enabling efficient and stable rescue without requiring the person in the water to have physical strength or awareness. Compared with current conventional rescue technologies, this application has advantages such as wide applicability, high rescue success rate and stability, ease of operation, and no need for the cooperation of the person in the water, providing a new development approach for maritime rescue technology.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A maritime rescue network, characterized in that: include: A floating mechanism, the floating mechanism including a mounting frame, wherein a float core is provided in the mounting frame; A rescue mechanism includes a swing ring assembly and a rescue net. The swing ring assembly includes a semi-ring and an elastic drive component. The semi-ring is disposed within the space enclosed by the mounting frame, with its two ends rotatably connected to the mounting frame. The elastic drive component is disposed between the mounting frame and the semi-ring to drive the semi-ring to swing and flip around the rotation center line. One side of the rescue net is detachably connected to the mounting frame, and the other side is detachably connected to the semi-ring to open / close through the swing of the semi-ring.

2. The maritime rescue network according to claim 1, characterized in that: The mounting frame includes a frame body and two connecting plates, which are respectively disposed on opposite sides of the frame body. The float core is disposed inside the frame body, and the two ends of the semi-ring body are rotatably connected to the two connecting plates.

3. The maritime rescue network according to claim 2, characterized in that: The swing ring assembly also includes a rotating shaft and two limiting plates. The mounting frame passes through the middle of the rotating shaft and is fixedly connected to the semi-ring body. The two limiting plates are respectively disposed on the inner and outer sides of the frame body and are respectively connected to the two ends of the rotating shaft.

4. The maritime rescue network according to claim 2, characterized in that: The connecting plate includes a top plate and two side plates. The connecting plate is fastened to the frame. The two ends of the semi-ring are inserted between the two side plates, and the top plate restricts its rotation angle.

5. The maritime rescue network according to claim 4, characterized in that: The connecting plate also includes a first hook disposed on the side plate, and a second hook is provided at the end of the semi-ring body. The two ends of the elastic drive member are respectively sleeved on the first hook and the second hook.

6. The maritime rescue network according to claim 1, characterized in that: The floating mechanism also includes a frame suspension rope, and the rescue mechanism also includes a net suspension rope. Both the frame suspension rope and the net suspension rope are connected to the flight equipment. The mounting frame is set on the frame suspension rope, and the rescue net is connected to the net suspension rope to be closed by the net suspension rope.

7. The maritime rescue network according to claim 6, characterized in that: The rescue mechanism also includes Velcro, and the rescue net is attached to the mounting frame and the semi-ring body by the Velcro. During the lifting process, the rescue net detaches from the semi-ring body and the mounting frame due to gravity, and is then secured by the net's suspension rope.

8. The maritime rescue network according to claim 1, characterized in that: The rescue mechanism also includes a locking component, which includes a locking block, a locking pin, and a strap. The locking block is fixed to the mounting frame, and the strap is wrapped around and fixed to the mounting frame and the semi-ring. Both ends of the strap are sleeved on the locking pin, and the locking pin is detachably inserted into the locking block to lock / release the strap.

9. The maritime rescue network according to claim 8, characterized in that: The locking assembly also includes a fixing block and an unlocking rope. The fixing block is fixed on the mounting frame and is set corresponding to the locking block. The locking pin can pass through the fixing block and be inserted into the locking block. The locking pin has a pull ring at one end away from the locking block. One end of the unlocking rope is connected to the pull ring, and the other end is connected to the flight equipment.

10. A rescue system, characterized in that: Includes the maritime rescue network and flight equipment as described in any one of claims 1 to 9.

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