Self-floating sea rescue device based on Beidou positioning

Abstract

The invention provides a Beidou positioning-based self-floating sea rescue device which comprises an inflatable floating mechanism, a folding stretcher mechanism, a rescue fixing mechanism and a lifting hook, two side telescopic rods are respectively mounted in the side telescopic rods, a stretcher handle is mounted at one end of each side telescopic rod, one end of each stretcher handle is connected with a buckle, and the other end of each stretcher handle is connected with the lifting hook. According to the design, the problems that an original self-floating sea rescue device is large in size and troublesome to install are solved, the side telescopic rods, the stretcher handles, the connecting buckles and the side telescopic pipes are all made of carbon fibers and SUS316 stainless steel materials, and the side telescopic rods, the stretcher handles, the connecting buckles and the side telescopic pipes are all made of carbon fibers and SUS316 stainless steel materials. The problem that after an original self-floating sea rescue device is used on the sea for a long time, the connecting part is prone to being corroded by salt mist is solved, and compared with the prior art, the self-floating sea rescue device is reasonable in structure, convenient to combine and install and high in reliability.

Description

Technical Field

[0001] This invention is a self-floating maritime rescue device based on BeiDou positioning, belonging to the field of maritime self-rescue technology. Background Technology

[0002] Based on the equipment and principles of maritime self-rescue, various situations may arise when working or playing at sea, but not limited to the one mentioned below. More specifically, when people need to rescue themselves at sea due to collisions or other reasons, they mostly do so through shipboard lifeboats, while small boats rely on people wearing life jackets and other items for self-rescue.

[0003] In the existing technology, the existing self-floating marine rescue devices are large in size and are relatively troublesome to install. After prolonged use at sea, the connection parts of the existing self-floating marine rescue devices are easily corroded by salt spray, which can easily lead to jamming or damage during use. There is an urgent need for a self-floating marine rescue device based on Beidou positioning to solve the above problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a self-floating maritime rescue device based on Beidou positioning, so as to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a self-floating maritime rescue device based on BeiDou positioning, comprising an inflatable floating mechanism, a folding stretcher mechanism, a rescue fixing mechanism, and lifting hooks. The upper surface of the inflatable floating mechanism is equipped with the folding stretcher mechanism, the surface of the folding stretcher mechanism is provided with the rescue fixing mechanism, and four lifting hooks are installed on the surface of the folding stretcher mechanism. The inflatable floating mechanism includes an adjusting fastening strap, an arc-shaped handle, an inflatable floating bag, an inflation / deflation port, and an inflation / deflation pipe. The folding stretcher mechanism includes a side telescopic rod, a stretcher handle, a connecting buckle, a side telescopic tube, and a limiting ball. The rescue fixing mechanism includes a stretcher cloth, a groin fixator, a leg fixator, and a head fixator.

[0006] Furthermore, in the inflatable floating mechanism, four arc-shaped handles are installed on both sides of the inflatable floating bag, an inflation / deflation pipe is installed on the upper surface of the inflatable floating bag, an inflation / deflation port is installed on the upper surface of the inflatable floating bag, and two adjusting and fastening straps are installed on the upper surface of the inflatable floating bag.

[0007] Furthermore, in the folding stretcher mechanism, two side telescopic rods are respectively installed inside the side telescopic rods, a stretcher handle is installed at one end of each side telescopic rod, a buckle is connected to one end of each stretcher handle, and two limit balls are installed inside both ends of each side telescopic tube.

[0008] Furthermore, in the rescue fixation mechanism, a head fixator is installed on the upper surface of the stretcher cloth, a groin fixator is installed on the upper surface of the stretcher cloth, and a leg fixator is installed on the upper surface of the stretcher cloth. The leg fixator and the head fixator are respectively located on both sides of the groin fixator.

[0009] Furthermore, the head fixation device is connected to the side telescopic rods on both sides by connecting straps, and the head fixation device, groin fixation device, and leg fixation device are connected to the stretcher cloth by hook and loop fasteners.

[0010] Furthermore, the connecting buckle includes a connecting buckle housing, an insertion block, a buckle cavity, a buckle telescopic rod, a linkage shaft, a return spring, a semi-circular groove, a buckle disc, and a buckle wrench. The connecting buckle housing is connected to the stretcher handle. An insertion block is installed on one side of the connecting buckle housing. A buckle cavity is formed inside the connecting buckle housing. A buckle wrench is installed on the circumferential surface of the buckle disc. A wrench groove is formed on the surface of the connecting buckle housing. The buckle wrench passes through the wrench groove. A buckle telescopic rod is installed inside the buckle cavity. Both ends of the buckle telescopic rod are connected to the inner wall of the connecting buckle housing and the buckle wrench via the linkage shaft. A semi-circular groove is formed on the inner side of the connecting buckle housing. A buckle disc is installed inside the semi-circular groove. A return spring is installed on the circumferential surface of the buckle telescopic rod.

[0011] Furthermore, each of the side telescopic tubes has a receiving cavity at both ends, and one end of each side telescopic rod is located inside the receiving cavity. A limiting end is installed at one end of the side telescopic rod, and the limiting end is installed inside the receiving cavity. Two limiting cavities are formed on the circumferential surface of the limiting end. A spring cavity is formed inside the limiting cavity, and a limiting telescopic rod is installed inside the spring cavity. A lifting spring is installed on the circumferential surface of the limiting telescopic rod, and a limiting ball is installed at one end of the limiting telescopic rod. A limiting disc is installed on the circumferential surface of the limiting ball, and the limiting disc is installed inside the limiting cavity. A limiting hole is formed on the circumferential surface of the side telescopic tube, and one side of the limiting ball is located inside the limiting hole.

[0012] Furthermore, each of the side telescopic rods is provided with a hook strap on its circumferential surface, and a hook ring is installed on one side of each hook strap. A rotating column is provided on the side of the hook ring, and the rotating column is connected to the hook ring through a rotating shaft. A fixing tube is installed on the circumferential surface of the rotating shaft, and the fixing tube is threadedly connected to both the rotating column and the hook ring.

[0013] Furthermore, the side telescopic rod, stretcher handle, connecting buckle, and side telescopic tube are all made of carbon fiber and SUS316 stainless steel. The head fixation device, groin fixation device, and leg fixation device are made of NBR and vinyl coating. The inflatable float is made of TPU composite airtight fabric. The hook ring, rotating column, rotating shaft, and fixing tube in the lifting hook are made of polished SUS304 material.

[0014] The beneficial effects of this invention are as follows: The self-floating maritime rescue device based on Beidou positioning of this invention, due to the addition of a side telescopic rod, stretcher handle, connecting buckle, side telescopic tube, and limiting ball, allows for the rapid pulling and folding of the folding stretcher mechanism. At the same time, the connecting buckle and limiting ball are used to fix the unfolded state, preventing the stretcher from being misoperated during use and affecting the frame's firmness and rigidity, and further preventing the injured person from slipping. This solves the problem of the original self-floating maritime rescue device being large in size and cumbersome to install, thus improving the portability of this invention.

[0015] Because this invention incorporates carbon fiber and SUS316 stainless steel, the design minimizes the risks associated with environmental pollution, thus reducing the impact on the stretcher's usability. In neutral salt spray tests (NSS) conforming to standards such as GB / T 2423.17, SUS316 typically exhibits a corrosion resistance time of 72 to 120 hours. This solves the problem of salt spray corrosion at connection points in traditional self-floating marine rescue devices after prolonged use at sea, thereby improving the durability of this invention. Attached Figure Description

[0016] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the self-floating maritime rescue device based on BeiDou positioning according to the present invention. Figure 2 This is a schematic diagram of the connection of the rescue fixing mechanism in the self-floating marine rescue device based on Beidou positioning of the present invention; Figure 3 This is a schematic diagram of the folding stretcher mechanism in the self-floating maritime rescue device based on BeiDou positioning of the present invention; Figure 4 This is a schematic diagram of the inflatable floating mechanism in the self-floating maritime rescue device based on BeiDou positioning of the present invention. Figure 5 This is a cross-sectional schematic diagram of the side telescopic tube in the self-floating marine rescue device based on Beidou positioning of the present invention; Figure 6 This is a cross-sectional schematic diagram of the connecting buckle in the self-floating marine rescue device based on Beidou positioning of the present invention; Figure 7This is a cross-sectional schematic diagram of the connecting buckle in the self-floating marine rescue device based on Beidou positioning of the present invention; In the diagram: 1-Inflatable flotation mechanism, 11-Adjustable fastening strap, 12-Arc-shaped handle, 13-Inflatable flotation bag, 14-Inflation / depression port, 15-Blow / de-out air pipe, 2-Folding stretcher mechanism, 21-Side telescopic rod, 211-Limiting end, 2111-Limiting cavity, 2112-Spring cavity, 22-Stretcher handle, 23-Connecting buckle, 231-Connecting buckle housing, 232-Insertion block, 233-Snap-on cavity, 234-Snap-on telescopic rod, 235-Linking shaft, 236-Reset spring, 23 7-Semi-circular groove, 238-Snap-on disc, 239-Snap-on wrench, 24-Side telescopic tube, 241-Storage cavity, 242-Limiting hole, 25-Limiting ball, 251-Limiting plate, 252-Limiting telescopic rod, 253-Lifting spring, 3-Rescue fixing mechanism, 31-Stretcher cloth, 32-Crotch fixator, 33-Leg fixator, 34-Head fixator, 4-Lifting hook, 41-Hook ring, 42-Hook strap, 43-Rotating column, 431-Rotating shaft, 44-Fixing tube. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1-7 This invention provides a technical solution: a self-floating maritime rescue device based on Beidou positioning, comprising an inflatable floating mechanism 1, a folding stretcher mechanism 2, a rescue fixing mechanism 3, and lifting hooks 4. The folding stretcher mechanism 2 is installed on the upper surface of the inflatable floating mechanism 1, the rescue fixing mechanism 3 is provided on the surface of the folding stretcher mechanism 2, and four lifting hooks 4 are installed on the surface of the folding stretcher mechanism 2. The inflatable floating mechanism 1 includes an adjusting fastening strap 11, an arc-shaped handle 12, an inflatable floating bag 13, an inflation / deflation port 14, and an inflation / deflation pipe 15. The folding stretcher mechanism 2 includes a side telescopic rod 21, a stretcher handle 22, a connecting buckle 23, a side telescopic tube 24, and a limiting ball 25. The rescue fixing mechanism 3 includes a stretcher cloth 31, a crotch fixator 32, a leg fixator 33, and a head fixator 34.

[0019] In the inflatable floating mechanism 1, four arc-shaped handles 12 are installed on both sides of the inflatable floating bag 13, an inflation / deflation pipe is installed on the upper surface of the inflatable floating bag 13, an inflation / deflation port 14 is installed on the upper surface of the inflatable floating bag 13, and two adjusting fastening straps 11 are installed on the upper surface of the inflatable floating bag 13.

[0020] In the folding stretcher mechanism 2, two side telescopic rods 21 are installed inside the side telescopic rods 21 respectively. A stretcher handle 22 is installed at one end of each side telescopic rod 21. A buckle 23 is connected to one end of each stretcher handle 22. Two limit balls 25 are installed inside both ends of each side telescopic tube 24.

[0021] In the rescue fixation mechanism 3, a head fixation device 34 is installed on the upper surface of the stretcher cloth 31, a groin fixation device 32 is installed on the upper surface of the stretcher cloth 31, and a leg fixation device 33 is installed on the upper surface of the stretcher cloth 31. The leg fixation device 33 and the head fixation device 34 are located on both sides of the groin fixation device 32.

[0022] As an embodiment of the present invention: when it is necessary to unfold the folding stretcher mechanism 2, the operator first holds the stretcher handles 22 on both sides and pulls the side telescopic rod 21 outward from the storage cavity 241 of the side telescopic tube 24. As the stretching action occurs, the lifting spring 253 inside the limiting end 211 releases its elastic potential energy after being compressed, pushing the limiting telescopic rod 252 to move the limiting ball 25 outward. When the limiting ball 25 aligns with the limiting hole 242 on the surface of the side telescopic tube 24, the limiting ball 25 automatically springs into the limiting hole 242 under the action of the lifting spring 253, forming a mechanical lock to ensure that the side telescopic rod 21 and the side telescopic tube 24 maintain a stable extended state. Then, the two connecting buckle housings 231 are aligned, and the insertion block 232 is inserted into the buckle cavity 233. At this time, the insertion block 232 will push the two buckle discs 238 to rotate respectively. When the two buckle discs 238 are combined into a disc shape, the reset spring 236 will pull the buckle wrench 239 to rotate the buckle disc 238 back to its original position, thereby realizing the connection of the two side telescopic rods 21.

[0023] As an embodiment of the present invention: after all four side telescopic rods 21 on both sides are fully extended and locked, the operator lays the stretcher cloth 31 flat on the extended frame and secures the head restraint 34, groin restraint 32, and leg restraint 33 to their corresponding positions on the stretcher cloth 31 using Velcro fasteners. The head restraint 34 is located at one end of the stretcher cloth 31 to support the head of the person in distress and keep their airway open; the groin restraint 32 is centrally located to secure the pelvic area and prevent the body from sliding down; the leg restraint 33 is located at the other end to restrain the lower limbs and prevent them from swaying. The three restraints form a three-point fixation system to ensure that the person in distress remains in a supine position while floating at sea, reducing heat loss and the risk of secondary injury.

[0024] As one embodiment of the present invention: After deployment, gas is injected into the inflatable floating bag 13 through the inflation / deflation port 14. The airbag, made of TPU composite airtight material, gradually expands to form a stable buoyancy platform. During inflation, the inflation amount can be adjusted according to sea conditions. When the waves are large, the inflation amount can be appropriately reduced to lower the center of gravity and improve the device's anti-overturning ability. After inflation, the folding stretcher mechanism 2 is fixedly connected to the inflatable floating bag 13 by adjusting the fastening strap 11 to ensure that the two maintain a stable relative position under the action of waves.

[0025] As one embodiment of the present invention: the installation of the lifting hook 4 can be carried out before or after the stretcher is deployed. The hook strap 42 is wound around the appropriate position on the side telescopic rod 21. After the hook ring 41 is fitted onto the hook strap 42, the rotating column 43 is connected to the hook ring 41 via the rotating shaft 431, and then screwed into the fixing tube 44 to complete the fastening, preventing the hook from detaching during helicopter lifting. The four lifting hooks 4 are located at the four corners of the stretcher, facilitating quick attachment of the helicopter slings and enabling vertical evacuation at sea. The rotating column 43 can rotate freely around the rotating shaft 431, allowing the hook ring 41 to adaptively adjust its angle and preventing kinking of the slings during lifting.

[0026] As an embodiment of the present invention: the entire unfolding process can be completed by a single person within 90 seconds, and by two people working together, it can be shortened to less than 60 seconds. When folding and storing, the operation is carried out in the reverse order: release the gas in the inflatable floating bag 13, loosen the adjusting fastening strap 11, press the limiting ball 25 to retract the side telescopic rod 21, disassemble the lifting hook 4, and finally store each component in a special carrying bag for easy transportation and storage.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-floating maritime rescue device based on BeiDou positioning, comprising an inflatable floating mechanism, a folding stretcher mechanism, a rescue fixing mechanism, and a lifting hook, characterized in that: The upper surface of the inflatable flotation mechanism is equipped with a folding stretcher mechanism, and the surface of the folding stretcher mechanism is provided with a rescue fixing mechanism. The surface of the folding stretcher mechanism is equipped with four lifting hooks. The inflatable flotation mechanism includes an adjusting fastening strap, an arc-shaped handle, an inflatable flotation bag, an inflation / deflation port, and an inflation / deflation pipe. The folding stretcher mechanism includes a side telescopic rod, a stretcher handle, a connecting buckle, a side telescopic tube, and a limiting ball. The rescue fixing mechanism includes a stretcher cloth, a groin fixator, a leg fixator, and a head fixator.

2. The self-floating maritime rescue device based on BeiDou positioning according to claim 1, characterized in that: In the inflatable floating mechanism, four arc-shaped handles are installed on both sides of the inflatable floating bag, an inflation / deflation pipe is installed on the upper surface of the inflatable floating bag, an inflation / deflation port is installed on the upper surface of the inflatable floating bag, and two adjusting and fastening straps are installed on the upper surface of the inflatable floating bag.

3. The self-floating maritime rescue device based on BeiDou positioning according to claim 2, characterized in that: In the folding stretcher mechanism, two side telescopic rods are installed inside the side telescopic rods respectively. A stretcher handle is installed at one end of each side telescopic rod. A buckle is connected to one end of each stretcher handle. Two limit balls are installed inside both ends of each side telescopic tube.

4. The self-floating maritime rescue device based on BeiDou positioning according to claim 2, characterized in that: In the rescue fixation mechanism, a head fixator is installed on the upper surface of the stretcher cloth, a groin fixator is installed on the upper surface of the stretcher cloth, and a leg fixator is installed on the upper surface of the stretcher cloth. The leg fixator and the head fixator are located on both sides of the groin fixator.

5. The self-floating maritime rescue device based on BeiDou positioning according to claim 1, characterized in that: The head fixation device is connected to the side telescopic rods on both sides by connecting straps, and the head fixation device, groin fixation device, and leg fixation device are connected to the stretcher cloth by hook and loop fasteners.

6. The self-floating maritime rescue device based on BeiDou positioning according to claim 1, characterized in that: The connecting buckle includes a connecting buckle housing, an insertion block, a buckle cavity, a buckle telescopic rod, a linkage shaft, a return spring, a semi-circular groove, a buckle disc, and a buckle wrench. The connecting buckle housing is connected to the stretcher handle. An insertion block is installed on one side of the connecting buckle housing. The buckle cavity is formed inside the connecting buckle housing. A buckle wrench is installed on the circumferential surface of the buckle disc. A wrench groove is formed on the surface of the connecting buckle housing. The buckle wrench passes through the wrench groove. A buckle telescopic rod is installed inside the buckle cavity. Both ends of the buckle telescopic rod are connected to the inner wall of the connecting buckle housing and the buckle wrench via the linkage shaft. A semi-circular groove is formed on the inner side of the connecting buckle housing. The buckle disc is installed inside the semi-circular groove. A return spring is installed on the circumferential surface of the buckle telescopic rod.

7. The self-floating maritime rescue device based on BeiDou positioning according to claim 3, characterized in that: Each of the side telescopic tubes has a receiving cavity at both ends, and one end of each side telescopic rod is located inside the receiving cavity. A limiting end is installed at one end of the side telescopic rod, and the limiting end is installed inside the receiving cavity. Two limiting cavities are formed on the circumferential surface of the limiting end. A spring cavity is formed inside the limiting cavity, and a limiting telescopic rod is installed inside the spring cavity. A lifting spring is installed on the circumferential surface of the limiting telescopic rod. A limiting ball is installed at one end of the limiting telescopic rod, and a limiting disc is installed on the circumferential surface of the limiting ball. The limiting disc is installed inside the limiting cavity. A limiting hole is formed on the circumferential surface of the side telescopic tube, and one side of the limiting ball is located inside the limiting hole.

8. The self-floating maritime rescue device based on BeiDou positioning according to claim 1, characterized in that: Each of the side telescopic rods is provided with a hook strap on its circumferential surface, and a hook ring is installed on one side of each hook strap. A rotating column is provided on the side of the hook ring, and the rotating column is connected to the hook ring through a rotating shaft. A fixing tube is installed on the circumferential surface of the rotating shaft, and the fixing tube is threadedly connected to both the rotating column and the hook ring.

9. The self-floating maritime rescue device based on BeiDou positioning according to claim 1, characterized in that: The side telescopic rod, stretcher handle, connecting buckle, and side telescopic tube are all made of carbon fiber and SUS316 stainless steel. The head fixation device, groin fixation device, and leg fixation device are made of NBR and vinyl coating. The inflatable float is made of TPU composite airtight fabric. The hook ring, rotating column, rotating shaft, and fixing tube in the lifting hook are made of polished SUS304 material.

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