A portable rescue device for a person in the water at sea

Abstract

The application is portable rescue device for offshore fallen-in-water wounded person, which comprises foldable air bag, foldable stretcher, hoisting mechanism and positioning system. The foldable air bag comprises air bag body, air charging assembly fixed in the accommodating groove of the air bag body and communicated with the air bag body, air charging pull rope connected with the air charging assembly, and stretcher connecting piece fixed at four corner positions of the air bag body. The foldable stretcher comprises stretcher body spliced by first and second stretchers, back plate spliced by first and second back plates, soft bottom plate spliced by first and second soft bottom plates, hoisting disengaging pin and lifting lug vertically installed at one end of the first and second stretchers, pin shaft bottom of the four hoisting disengaging pins fixed with corresponding stretcher connecting piece, four lifting lugs fixed with the hoisting mechanism, and connecting belt at the top of each hoisting disengaging pin fixed with the hoisting mechanism. The hoisting mechanism is hoisted upward, the pin shaft of each hoisting disengaging pin is moved upward to disengage the fixing of the stretcher connecting piece, the stretcher and the air bag are disengaged, and only the stretcher for fixing the fallen-in-water wounded person is hoisted.

Description

Technical Field

[0001] This invention relates to the field of rescue device technology, and in particular to a portable rescue device for injured persons who have fallen into the water at sea. Background Technology

[0002] In maritime rescue operations, common rescue supplies include life rings and life jackets, which provide buoyancy for people who have fallen into the water. Life rings are easy for people to hold onto in the water, allowing their heads and faces to float to the surface, but they restrict their freedom of movement. Life jackets take time to put on, but once put on, they allow for greater freedom of movement and facilitate self-rescue.

[0003] The existing rescue methods using lifebuoys and life jackets have several drawbacks: 1. They are unsuitable for people with injuries who have fallen into the water, such as those with spinal injuries or fractures; 2. People wearing lifebuoys or life jackets are still submerged in water, and due to the low sea temperature, they are prone to hypothermia while waiting for rescue; 3. Sea conditions vary, and in rough seas, people wearing lifebuoys or life jackets are still at risk of drowning; 4. If the person is injured, they are prone to secondary injury during transport. To address these shortcomings, this invention designs a stretcher-type portable rescue device suitable for people injured at sea. Summary of the Invention

[0004] This invention addresses the problems and shortcomings of existing technologies by providing a portable rescue device for people injured in the sea after falling into the water.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] The present invention provides a portable rescue device for injured persons who fall into the sea, characterized in that it includes a foldable airbag, a foldable stretcher, a hoisting mechanism and a positioning system;

[0007] The foldable airbag includes a boat-shaped airbag body that can be folded in the length direction. A receiving groove is pre-set on the non-folded part of the airbag body. An inflation component communicating with the inside of the airbag body and an inflation pull rope connected to the inflation component are fixed in the receiving groove. The upper surface of the inflation component does not protrude from the upper surface of the receiving groove. A stretcher connector is fixed at each of the four corners of the stretcher receiving cavity of the airbag body.

[0008] The foldable stretcher includes a stretcher body formed by splicing a first stretcher and a second stretcher together with two sleeves, a back plate formed by splicing a first back plate and a second back plate, and a soft bottom plate formed by splicing a first soft bottom plate and a second soft bottom plate for the drowning victim to lie on. One end of each of the two transverse reinforcing ribs of the first and second stretchers is vertically fitted with a lifting release pin and a lifting lug. The bottom of the four lifting release pins is fixed to the corresponding stretcher connector. The four lifting lugs are fixedly connected to a lifting mechanism with lifting slots on the back plate and the soft bottom plate. The connecting strap connected to the top of each lifting release pin passes sequentially through holes in the top of the corresponding transverse reinforcing rib, the back plate, and the soft bottom plate before being fixed to the lifting mechanism. Each sleeve includes a sleeve body and a sleeve limiter. The first and second stretchers have a notch, a first sleeve hole, and a second sleeve hole. The other ends of the two transverse reinforcing ribs of the first and second stretchers are respectively fitted with a retractable first protrusion and a second protrusion. The other ends of the two transverse reinforcing ribs of the second stretcher are fixed with protruding columns. When folded, the two sleeves are fitted onto the first stretcher. When unfolded, when the protruding column is limited to the corresponding sleeve limiting notch, the first protrusion passes through and protrudes out of the adjacent first sleeve hole, and the second protrusion passes through and protrudes out of the adjacent second sleeve hole, so that the first stretcher and the second stretcher are fixedly connected. The first back plate and the second back plate are flexibly connected at the splice. The bottom of the back plate is embedded with a positioning system. The first soft bottom plate and the second soft bottom plate are flexibly connected at the splice. The soft bottom plate is fixed with a body fixation device for fixing the body of the drowning victim.

[0009] When the hoisting mechanism is lifted upward, under the action of the upward force, the pin of each of the hoisting release pins moves upward to disengage from the stretcher connector, thereby disengaging the foldable stretcher and the foldable airbag, and only the foldable stretcher with the drowning victim secured is hoisted.

[0010] The positive and progressive effects of this invention are as follows:

[0011] The stretcher-type portable rescue device designed in this invention is suitable for people who have fallen into the sea and are injured. When the injured person lies on the stretcher of the portable rescue device, they will not be in the water for a long time while waiting for rescue and transfer, which greatly reduces the possibility of hypothermia. At this time, the portable rescue device is at an anti-drowning tilt angle, which helps to prolong the waiting time for rescue at sea.

[0012] This invention is easy to disassemble and can transport the injured person lying on the stretcher together during hoisting and transfer. It can effectively prevent secondary injury to the injured person during the transportation process, effectively prevent hypothermia and drowning, and extend the waiting time for rescue at sea. Attached Figure Description

[0013] Figure 1-5 This is a perspective view (unfolded state) of a portable rescue device according to a preferred embodiment of the present invention.

[0014] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0015] Figure 7-9 This is a perspective view (unfolded state) of a foldable stretcher according to a preferred embodiment of the present invention.

[0016] Figure 10-11 This is a perspective view (in the deployed state) of a foldable airbag according to a preferred embodiment of the present invention.

[0017] Figure 12 for Figure 11 A magnified view of a portion of the image.

[0018] Figure 13-14 This is a perspective view (unfolded state) of a foldable stretcher according to a preferred embodiment of the present invention.

[0019] Figure 15 This is a schematic diagram (unfolded state) of the indexing pin in a preferred embodiment of the present invention.

[0020] Figure 16 This is a perspective view (unfolded state) of a foldable stretcher according to a preferred embodiment of the present invention.

[0021] Figure 17 This is a schematic diagram (unfolded state) of the indexing pin in a preferred embodiment of the present invention.

[0022] Figure 18 This is a perspective view (unfolded state) of the stretcher body according to a preferred embodiment of the present invention.

[0023] Figure 19-21 This is a schematic diagram of the sleeve structure according to a preferred embodiment of the present invention.

[0024] Figure 22-24 This is a perspective view (folded state) of a portable rescue device according to a preferred embodiment of the present invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] For ease of description, only the parts relevant to the present invention are shown in the accompanying drawings. The terms "first," "second," etc., used in this invention are merely for the convenience of describing the technical solutions of the invention and do not have a specific limiting effect; they are all general references and do not constitute a limitation on the technical solutions of the present invention. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Terms indicating positional relationships, such as "middle," "horizontal," "vertical," "longitudinal," "front," "rear," "left," "right," "inner," and "outer," are based on the positional relationships shown in the illustrated drawings and do not imply that the components referred to must be presented in the described positional relationships, and do not constitute a limitation on the technical solutions of the present invention.

[0027] like Figure 1-24 As shown in the figure, this invention provides a portable rescue device for people injured in the sea. The main design principles of this device include: simple operation, quick and reliable operation, sufficient structural strength and device stability, corrosion resistance, non-toxicity, and lightweight.

[0028] The portable rescue device in this embodiment includes a foldable airbag 10, a foldable stretcher 20, a hoisting mechanism 30, a positioning system 40, and a sunshade mechanism 50.

[0029] The foldable airbag 10 is used to provide buoyancy and support the drowning victim 100 and the upper structure, providing a relatively stable waiting environment for the drowning victim and reducing the possibility of the victim's condition deteriorating. It is the main component for realizing the rapid inflation and deployment function.

[0030] The foldable stretcher 20 serves as the support structure for portable rescue devices, bearing the overall load of the human body and its attachments when the injured person is waiting for rescue or being hoisted to a supine position. It enables the rapid deployment and connection of the rescue stretcher and its quick docking with rescue boats and flatbed vehicles, facilitating the transfer of the injured person. It is the support component for fixed support in the sea.

[0031] The hoisting mechanism 30 is used to lift and transfer injured people who have fallen into the water. It can quickly hoist and detach the stretcher and is the main component for realizing the quick fixation and detachment function of the rescue hoisting equipment (one-click hoisting).

[0032] The positioning system 40 has positioning and reporting functions, and is used to determine the location of the drowning victim. It is the main component for realizing the positioning and reporting functions.

[0033] The sunshade mechanism 50 is designed to provide a suitable enclosed environment for drowning victims to await rescue. It has functions of heat preservation, sun protection, and ventilation to prevent the condition of drowning victims from worsening.

[0034] Foldable airbag 10: includes an airbag body 101 that can be folded in the length direction. When the airbag body 101 is unfolded, it is boat-shaped. The airbag body 101 is composed of a head airbag 1011 and a tail airbag 1012. The top two sides of the head airbag 1011 are fixedly connected to long auxiliary airbags 1013. Each long auxiliary airbag 1013 extends to the top end of the tail airbag 1012 (near the feet of the drowning victim when lying down). When the foldable airbag 10 is fully unfolded, the tail airbag 1012 is placed under the long auxiliary airbags 1013. The head airbag 1011 has a pre-set receiving groove. An inflation component 103, which is connected to both the inside of the head airbag 1011 and the inside of the tail airbag 1012, and an inflation pull rope connected to the inflation component 103 are fixed in the receiving groove. The upper surface of the inflation component 103 does not protrude from the upper surface of the receiving groove. A stretcher connector 105 is fixed at the four corners of the stretcher receiving cavity of the airbag body 101. An exhaust valve 106 is installed at the head and tail of the airbag body 101. Multiple medicine bags 107 are arranged in the stretcher receiving cavity of the airbag body 101 and on both sides of the foldable stretcher 20. A reflective strip 108 is arranged on the outer side of the airbag body 101. A reserved pull rope is fixed to the edge of the airbag body 101.

[0035] The inflation cord includes a first inflation cord 1041 and a second inflation cord 1042, and the receiving slot 102 includes a gas cylinder receiving slot 1021 and a first valve receiving slot 1022 and a second valve receiving slot 1023 located on the opposite side of the gas cylinder receiving slot 1021.

[0036] The inflation assembly 103 includes a gas cylinder protective shell 1031 installed in the gas cylinder receiving slot 1021, and multiple gas cylinder protective shell fixing ropes 1037 fixed on the head airbag 1011 and located at the top of the gas cylinder receiving slot 1021. The gas cylinder protective shell fixing ropes 1037 can pass through the gas cylinder protective shell 1031. Four gas cylinders 1032 are placed inside the gas cylinder protective shell 1031. Two of the four gas cylinders 1032 are connected by a first connecting pipe 1033, which extends out of the gas cylinder protective shell 1031 toward the head airbag 1011. The remaining two gas cylinders are connected by a second connecting pipe 1034. 4. The gas cylinder protective shell 1031 extends toward the tail airbag 1012. The extended end of the first connecting pipe 1033 is connected and fixed to the head airbag 1011 through the first inflation quick release valve 1035 housed in the first valve receiving groove 1022. The extended end of the second connecting pipe 1034 is connected and fixed to the tail airbag 1012 through the second inflation quick release valve 1036 housed in the second valve receiving groove 1023. The first inflation quick release valve 1035 and the second inflation quick release valve 1036 are respectively connected to the first inflation pull rope 1041 and the second inflation pull rope 1042. The pull ring ends of the first inflation pull rope 1041 and the second inflation pull rope 1042 both extend out of the airbag body 101.

[0037] Each stretcher connector 105 includes a stretcher connecting rope 1051, a stretcher connecting ring 1052, and a connecting rope base 1053. The two ends of each stretcher connecting rope 1051 are connected to the stretcher connecting ring 1052 and the connecting rope base 1053. The four connecting rope bases 1053 are respectively fixed at the four corners of the stretcher receiving cavity of the airbag body 101.

[0038] In this embodiment, the airbag body 101 is the core of the foldable airbag 10 and the main body of the rescue device. It needs to be able to support the drowning victim and the upper structure, and provide a relatively stable platform for the drowning victim to be rescued, thereby reducing the possibility of the drowning victim's condition worsening. Among them, the long strip auxiliary airbag 1013 is used to assist the deployment of the rescue stretcher; the stretcher connector 105 is used to connect the rescue stretcher, realizing the connection between the airbag and the stretcher when not hoisting; the airbag body 101 is configured as a separate head airbag 1011 and tail airbag 1012 to realize the sequential inflation of the airbag to adjust the posture of the airbag in the water, so that it is at about 45° with the water surface, which facilitates the transfer of the drowning victim from the water and fixation to the stretcher.

[0039] In this embodiment, the inflation component 103 needs to have a rapid inflation function so that the airbag can be filled and rescue operations carried out in a short time. In use, pulling down the pull ropes sequentially allows for secondary inflation.

[0040] In this embodiment, the gas cylinder protective shell 1031 has the function of protecting and fixing the gas cylinder. The gas cylinder protective shell 1031 is composed of a protective shell outer shell and a gas cylinder fixing plate fixed inside. The protective shell outer shell is provided with a connecting pipe hole and a fixing rope hole. The fixing rope hole is used for the gas cylinder protective shell fixing rope 1037 to connect and fix the gas cylinder protective shell 1031 and the airbag body 101.

[0041] In this embodiment, the medicine bag 107 has functions such as encapsulating emergency medicine, shark repellent, and waterproofing, so as to realize emergency treatment of drowning victims and repel sharks. The medicine bag 107 is a square bag made of the same material as the airbag, a total of 6 bags, which are placed on both sides inside the airbag body 101, and encapsulate self-rescue medicine, drinking water, food, shark repellent and other items inside.

[0042] The foldable stretcher 20 includes a stretcher body 201 formed by splicing a first stretcher 2011 and a second stretcher 2012 together with two sleeves 2013, a back plate 202 formed by splicing a first back plate 2021 and a second back plate 2022, and a soft bottom plate 203 formed by splicing a first soft bottom plate 2031 and a second soft bottom plate 2032 for the injured person to lie on. The first back plate 2021 and the second back plate 2022 are flexibly connected at the splicing point, the first soft bottom plate 2031 and the second soft bottom plate 2032 are flexibly connected at the splicing point, the first back plate 2021 and the first soft bottom plate 2031 are bonded together, and the second back plate 2022 and the second soft bottom plate 2032 are bonded together. Both the first stretcher 2011 and the second stretcher 2012 are composed of H-shaped reinforcing ribs, with the two transverse reinforcing ribs being hollow tubes. One end of each of the two transverse reinforcing ribs in both stretchers 2011 and 2012 is vertically fitted with an indexing pin 2014 and a lifting lug 2015. The bottom of the pin shafts of the four indexing pins 2014 is fixed to the corresponding stretcher connector 105. The four lifting lugs 2015 are fixedly connected to the lifting mechanism 30, which passes through the lifting slots 2023 on the back plate 202 and the lifting slots 2033 on the soft bottom plate 203. The connecting strap 204 connected to the top of each indexing pin 2014 passes sequentially through the holes on the top of the corresponding transverse reinforcing rib, the back plate 202, and the soft bottom plate 203, and is then fixed to the lifting mechanism 30. Each sleeve 2013 includes a sleeve body 20131 and sleeve limiting notches 20132, a first sleeve hole 20133, and a second sleeve hole 20134. The other ends of the two transverse reinforcing ribs of the first stretcher 2011 and the second stretcher 2012 are respectively fitted with a retractable first protrusion 2018 and a second protrusion. The other ends of the two transverse reinforcing ribs of the second stretcher 2012 are also fixed with protruding columns 2019. In the folded state, the two sleeves 2013 are fitted onto the other ends of the two transverse reinforcing ribs of the first stretcher 2011. When unfolded, the two sleeves 2013 are pulled outward and rotated. When the protruding column 2019 is limited to the corresponding sleeve limiting notch 20132, the first protrusion 2018 passes through and protrudes out of the adjacent first sleeve hole 20133, and the second protrusion passes through and protrudes out of the adjacent second sleeve hole 20134, so that the first stretcher 2011 and the second stretcher 2012 are fixedly connected by the two sleeves 2013. The positioning system 40 is embedded in the bottom of the back plate 202, and the body fixation device for fixing the body of the drowning victim is fixed on the soft bottom plate 203.

[0043] Among them, the first stretcher 2011 and the second stretcher 2012 have upper horizontal seats 2016 and lower horizontal seats 2017 arranged vertically and vertically inside one end of the two transverse reinforcing ribs. Each upper horizontal seat 2016 is fixed with an indexing pin 2014. Each lower horizontal seat 2017 has a corresponding stretcher connecting ring 1052 placed at the middle hole position on the upper surface of the lower horizontal seat 2017. The bottom of the pin shaft of each indexing pin 2014 passes through the middle hole of the corresponding stretcher connecting ring 1052 and the lower horizontal seat 2017 to fix the foldable stretcher 20 and the foldable airbag 10. The connecting strap 204 connected to the top of each indexing pin 2014 passes through the holes on the top of the corresponding transverse reinforcing rib, the back plate 202 and the soft bottom plate 203 in sequence and is fixed to the hoisting mechanism 30.

[0044] The bottom of the back plate 202 is provided with a sleeve anti-interference groove corresponding to the position of the sleeve 2013. The splice of the first back plate 2021 and the second back plate 2022 is connected by a back plate connecting strip 2025. The ends of the first back plate 2021 and the second back plate 2022 are both equipped with docking slide plates 2026.

[0045] The body immobilizer includes a head and neck immobilizer 2034, a thoracolumbar immobilizer 2035, a leg immobilizer 2036, and a foot immobilizer 2037. The head and neck immobilizer 2034 and the thoracolumbar immobilizer 2035 are fixed to a first soft base plate 2031, and the leg immobilizer 2036 and the foot immobilizer 2037 are fixed to a second soft base plate 2032.

[0046] In this embodiment, the H-shaped reinforcing rib is the support of the foldable stretcher 20, which needs to be able to support the upper back plate 202 and the soft bottom plate 203 to provide rigid support for the drowning victim and avoid secondary injury.

[0047] In this embodiment, the back plate 202 is the main structure of the rescue stretcher. It needs to fill the gaps in the stretcher body 201 and provide support for the soft bottom plate 203 on its upper part. It also needs to have the function of quickly docking with rescue boats, flatcars, etc., to facilitate the transfer of injured people who have fallen into the water. In addition, the connection between the first back plate 2021 and the second back plate 2022 needs to be a flexible connection to facilitate the folding and storage of the rescue stretcher.

[0048] In this embodiment, the soft base plate 203 serves as a cushioning mechanism for the rescue stretcher. It must provide a certain amount of space suitable for the fracture site to prevent secondary injury and ensure comfort for the drowning victim. The soft base plate 203 is a square plate made of polyurethane material with structures such as hanging slots.

[0049] In this embodiment, the sleeve 2013 is a connecting structure for the rescue stretcher, which needs to enable quick connection between the upper and lower parts of the rescue stretcher.

[0050] In this embodiment, the head and neck immobilizer 2034 can stabilize the head and neck of a drowning victim, providing precise positioning and effective protection for the head and neck, and preventing secondary injuries caused by head movement. The head and neck immobilizer 2034 consists of a main body, nylon straps, a front fixing strap, a buckle, and a neck pillow. In use, pulling the straps secures the head and neck of the drowning victim. Head immobilization is achieved by adjusting the strap length to conform to the contours of the victim's head.

[0051] The 2035 chest and waist immobilizer secures the chest and waist of a drowning victim, preventing them from falling off the rescue stretcher while awaiting rescue and transport. The 2035 consists of a safety belt buckle, safety straps, a fixation plate, a pull buckle, and a lumbar support. In use, the safety buckle connects to both ends of the strap, and the length of the safety strap is adjusted so that the internal fixation plate conforms to the contours of the drowning victim's chest and waist for secure immobilization.

[0052] The Leg Immobilizer 2036 secures the legs of a drowning victim, preventing them from falling off the rescue stretcher while awaiting rescue and transport. The Leg Immobilizer 2036 consists of a safety belt buckle, safety straps, a fixing plate, and a pull buckle. To use, pulling down the safety strap below the pull buckle tightens the strap. During use, the safety buckle connects the two ends of the strap, and the length of the strap is adjusted so that the internal fixing plate conforms to the contours of the drowning victim's leg for leg immobilization.

[0053] The foot restraint 2037 secures the feet of a drowning victim, preventing them from falling off the rescue stretcher while awaiting rescue and transport. The foot restraint 2037 consists of a safety belt buckle, safety straps, pull buckles, and a stand strap. In use, the safety buckle connects to both ends of the strap, and the length of the safety strap is adjusted to conform to the contours of the drowning victim's feet for secure immobilization.

[0054] The lifting mechanism 30 includes four lifting straps 301 with hanging rings at the bottom and top, hooks 302 attached to each hanging ring, and lifting rings 303 attached to the hooks 302. Four lifting lugs 2015 are fixedly connected to the corresponding lifting straps 301 via bottom hanging rings. The four lifting straps 301 pass sequentially through the lifting slots 2023 on the back plate 202 and the lifting slots 2033 on the soft base plate 203, and are then fixedly connected to the lifting rings 303 via top hanging rings and hooks 302. In this way, the connecting strap 204 connected to the top of each indexing pin 2014 passes sequentially through the holes on the top of the corresponding transverse reinforcing rib, the back plate 202, and the soft base plate 203, and is then fixedly connected to the corresponding lifting strap 301.

[0055] Positioning System 40: The positioning system 40 is installed inside the docking slide plate 2026 of the second backplate 2022. Its four corners are surrounded by protective pads made of polyurethane material with added flame retardant, which serve as cushioning and protection. The positioning system 40 consists of a Beidou positioning device main body and a back clip. It has a waterproof shell and is installed inside the docking slide plate 2026 of the second backplate 2022. It is fixed and protected by protective pads and fixing straps. It has Beidou-3 satellite communication and positioning functions and is used to determine the location of injured persons who have fallen into the water.

[0056] The sunshade mechanism 50 includes a sunshade body 501 spliced ​​from a first sunshade cloth 5011 and a second sunshade cloth 5012, a first sunshade cloth bracket 502 embedded in the cylindrical holes at both ends of the first sunshade cloth 5011, and a second sunshade cloth bracket 503 embedded in the cylindrical holes at both ends of the second sunshade cloth 5012. One side of the first sunshade cloth 5011 and the second sunshade cloth 5012 are respectively fixed to both sides of the airbag body 101. Magnetic buckles 504 and hook-and-loop fasteners 505 are fixed at intervals at the connection points on the other side of the first sunshade cloth 5011 and the second sunshade cloth 5012. Eight hook-and-loop fasteners for attaching the hoisting mechanism 30 are also arranged on the inner walls of the first sunshade cloth 5011 and the second sunshade cloth 5012.

[0057] In this embodiment, eight hook and loop fasteners are arranged on the inner wall of the sunshade cloth to attach the slings 301 in the hoisting mechanism, so as to facilitate the rapid hoisting and detachment of the rescue stretcher.

[0058] When the sunshade is not unfolded, the hoisting mechanism 30 uses 8 hooks attached inside the sunshade mechanism, that is, the corner of the sling 301 is hooked. At this time, the hoisting rope above the indexing pin 2014 is in a slack state. Unless subjected to a certain external force that causes all two hooks on each side of the sunshade to separate, the hooks will not separate, and the force on one side of the sunshade will not exceed 48N (two indexing pins 2014 on one side of the sunshade are connected to the corresponding sling 301, and the two slings 301 are connected by a hoisting ring 303). When the angle between the sling 301 and the indexing pin 2014 is about 120 degrees, the force on a single indexing pin 2014 will not exceed 24N, and the indexing pin 2014 will not be hoisted.

[0059] Based on underwater posture simulation experiments, the ideal device should have a portion above the water surface sufficient to secure the head, neck, and chest of a drowning victim, ideally occupying about one-third of the entire device. The angle between the above-water portion and the water surface should ideally be around 45°, reducing drag while making it easier for the victim to approach the head of the device. The buoyancy of the head airbag 1011 should be slightly greater than the weight of the backplate 102, but not excessively large. The total width of the foldable stretcher 20 should be around 60cm, sufficient to accommodate an adult's shoulder width while being smaller than an adult male's arm length.

[0060] Based on the order in which different states appear during use, they can be divided into three categories: folded state, stored state, and unfolded state.

[0061] The operating procedure of the portable rescue device in this embodiment is as follows:

[0062] When a person falls into the water and is injured, the portable rescue device is thrown near the injured person. The rescuer pulls down the first inflation rope 1041 (the first inflation rope is red) which is connected to the first inflation quick-release valve 1035 near the head airbag 1011. This connects the first inflation quick-release valve 1035, which is connected to the two high-pressure gas cylinders 1032. The gas inside the two high-pressure gas cylinders 1032 flows sequentially through the first connecting pipe 1033 and the first inflation quick-release valve 1035 to the head airbag 1011 and the long auxiliary airbag. Inflation of the upper airbag 1013 causes the head airbag 1011 and the long auxiliary airbag 1013 to inflate, thereby unfolding the upper and lower parts of the foldable stretcher 20, tilting the rescue device at approximately 45° to the water surface. This completes the inflation of the upper airbag. After inflation, the rescuer slides the sleeve 2013 connected to the first stretcher 2011 along the direction of the sleeve limiting notch 20132 from the first stretcher 2011 and attaches it to the second stretcher 2012, thus completing the unfolding and securing of the upper and lower parts of the foldable stretcher 20.

[0063] Rescuers grab the drowning victim with one hand and the rescue device with the other. They slowly push the victim onto the upper part of the rescue device (i.e., the inflated head airbag 1011), and first use the head and neck immobilizer 2034 and the chest and waist immobilizer 2035 to stabilize the head, neck, and chest. After securing the device, rescuers pull down the second inflation rope 1042 (the second inflation rope is blue) connected to the second inflation quick-release valve 1036, which connects the second inflation quick-release valve 1036 to the remaining two high-pressure gas cylinders 1032. The gas inside the remaining two high-pressure gas cylinders 1032 then passes through the second connecting pipe 1034 and the second inflation quick-release valve 1036 to inflate the tail airbag 1012. The tail airbag 1012 inflates, adjusting the rescue device from an inclined position to a horizontal position, allowing it to float upright on the water surface. This ensures the drowning victim is fully afloat and in contact with the rescue device. At this point, the leg fixation device 2036 and foot fixation device 2037 are used to secure the lower body of the drowning victim, completing the fixation process.

[0064] After completing the above operations, the rescuers pull the sunshade body 501, causing the magnetic snaps 504 and hook and loop fasteners 505 connected to the sunshade body 501 to separate. Under the action of the sunshade supports (first sunshade support 502 and second sunshade support 503) located at its two ends, the sunshade body 501 is supported from both sides of the airbag body 101 and connected by the magnetic snaps 504 and hook and loop fasteners 505, thus achieving full coverage of the rescue device, waiting for the rescuer to lift it up.

[0065] During the rescue, rescuers open the main body 501 of the sunshade and attach two lifting rings 303 from the hoisting mechanism, which are fastened to the inside of the sunshade with hooks and loops, to the helicopter's rescue hoisting equipment. The hoisting operation is now ready. After signaling the helicopter to connect, the winch descends to begin hoisting. As the helicopter lifts the rescue stretcher, the sling 301 is gradually pulled upwards, causing the connecting strap 204 to taut and pull the indexing pin 2014. This causes the pin inside the indexing pin 2014 to overcome the spring preload and pull upwards, thereby detaching the stretcher connecting ring 1052 from the pin. This achieves a one-click detachment of the foldable stretcher 20 and the foldable airbag 10, allowing only the foldable stretcher 20, which is secured to the injured person who fell into the water, to be hoisted and secured.

[0066] When using a boat for rescue, the boat rescuers release the hook, and the rescuers assist in casting the hook to the reserved pull rope at the edge of the airbag, drag the rescue device to the edge of the rescue boat, pull the indexing pin 2014 to separate the foldable stretcher 20 and the foldable airbag 10, and then use the docking slides 2026 at both ends of the foldable stretcher 20 to lift the stretcher onto the rescue boat and return it to the mother ship for treatment.

[0067] Helicopters or rescue ships transport injured people who have fallen into the water to hospital ships or other maritime rescue platforms. Medical personnel use the docking slides 2026 at both ends of the foldable stretcher 20 to lift the stretcher onto a flatbed for further treatment.

[0068] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A portable rescue device for injured persons who have fallen into the water at sea, characterized in that, It includes a collapsible airbag, a collapsible stretcher, a hoisting mechanism, and a positioning system; The foldable airbag includes a boat-shaped airbag body that can be folded in the length direction. A receiving groove is pre-set on the non-folded part of the airbag body. An inflation component communicating with the inside of the airbag body and an inflation pull rope connected to the inflation component are fixed in the receiving groove. The upper surface of the inflation component does not protrude from the upper surface of the receiving groove. A stretcher connector is fixed at each of the four corners of the stretcher receiving cavity of the airbag body. The airbag body is composed of a head airbag and a tail airbag. The head airbag has a pre-set receiving groove. An inflation component and an inflation pull rope connected to the inflation component are fixed in the receiving groove. Long auxiliary airbags are fixedly connected to the top two sides of the head airbag. Each of the long auxiliary airbags extends to the top end of the tail airbag. The inflation cord includes a first inflation cord and a second inflation cord, and the receiving slot includes a gas cylinder receiving slot and a first valve receiving slot and a second valve receiving slot located on opposite sides of the gas cylinder receiving slot. The inflation assembly includes a cylinder protective shell installed in a cylinder receiving slot. Multiple cylinders are placed inside the cylinder protective shell. Some of the cylinders are connected by a first connecting pipe that extends out of the cylinder protective shell toward the head airbag, and the remaining cylinders are connected by a second connecting pipe that extends out of the cylinder protective shell toward the tail airbag. The extended end of the first connecting pipe is connected and fixed to the head airbag via a first inflation quick-release valve housed in a first valve receiving slot. The extended end of the second connecting pipe is connected and fixed to the tail airbag via a second inflation quick-release valve housed in a second valve receiving slot. The first inflation quick-release valve and the second inflation quick-release valve are respectively connected to a first inflation pull cord and a second inflation pull cord. The pull ring ends of the first inflation pull cord and the second inflation pull cord both extend out of the airbag body. The foldable stretcher includes a stretcher body formed by splicing a first stretcher and a second stretcher together with two sleeves, a back plate formed by splicing a first back plate and a second back plate, and a soft bottom plate formed by splicing a first soft bottom plate and a second soft bottom plate for the drowning victim to lie on. One end of each of the two transverse reinforcing ribs of the first and second stretchers is vertically fitted with a lifting release pin and a lifting lug. The bottom of the four lifting release pins is fixed to the corresponding stretcher connector. The four lifting lugs are fixedly connected to a lifting mechanism with lifting slots on the back plate and the soft bottom plate. The connecting strap connected to the top of each lifting release pin passes sequentially through holes in the top of the corresponding transverse reinforcing rib, the back plate, and the soft bottom plate before being fixed to the lifting mechanism. Each sleeve includes a sleeve body and a sleeve limiter. The first and second stretchers have a notch, a first sleeve hole, and a second sleeve hole. The other ends of the two transverse reinforcing ribs of the first and second stretchers are respectively fitted with a retractable first protrusion and a second protrusion. The other ends of the two transverse reinforcing ribs of the second stretcher are fixed with protruding columns. When folded, the two sleeves are fitted onto the first stretcher. When unfolded, when the protruding column is limited to the corresponding sleeve limiting notch, the first protrusion passes through and protrudes out of the adjacent first sleeve hole, and the second protrusion passes through and protrudes out of the adjacent second sleeve hole, so that the first stretcher and the second stretcher are fixedly connected. The first back plate and the second back plate are flexibly connected at the splice. The bottom of the back plate is embedded with a positioning system. The first soft bottom plate and the second soft bottom plate are flexibly connected at the splice. The soft bottom plate is fixed with a body fixation device for fixing the body of the drowning victim. When the hoisting mechanism is lifted upward, under the action of the upward force, the pin of each of the hoisting release pins moves upward to disengage from the stretcher connector, thereby disengaging the foldable stretcher and the foldable airbag, and only the foldable stretcher with the drowning victim secured is hoisted.

2. The portable rescue device for injured persons who have fallen into the water at sea as described in claim 1, characterized in that, Multiple cylinder protective shell fixing ropes are fixed on the head airbag and at the top of the cylinder receiving slot. Both the head and tail of the airbag body are equipped with exhaust valves.

3. The portable rescue device for injured persons who have fallen into the water as described in claim 1, characterized in that, Both transverse reinforcing ribs of the first and second stretchers are hollow tubes, and the lifting release pins are indexing pins; Each of the stretcher connectors includes a stretcher connecting rope, a stretcher connecting ring, and a connecting rope base. The two ends of each stretcher connecting rope are connected to the stretcher connecting ring and the connecting rope base. The four connecting rope bases are respectively fixed at the four corners of the stretcher receiving cavity of the airbag body. The first stretcher and the second stretcher have upper and lower horizontal seats arranged at intervals inside one end of the two transverse reinforcing ribs. Each upper horizontal seat is fixed with an indexing pin. Each lower horizontal seat has a corresponding stretcher connecting ring placed at the middle hole position on the upper surface of the lower horizontal seat. The bottom of the pin shaft of each indexing pin passes through the middle hole of the corresponding stretcher connecting ring and the lower horizontal seat so as to fix the foldable stretcher and the foldable airbag. The connecting strap connected to the top of each indexing pin passes through the holes on the top of the corresponding transverse reinforcing rib, the back plate and the soft bottom plate in sequence and is then fixed to the hoisting mechanism. When the lifting mechanism is lifted upwards, the pin of each indexing pin moves upwards under the action of the upward force to disengage from the fixing of the stretcher connecting ring, so that the foldable stretcher and the foldable airbag are disengaged, and only the foldable stretcher with the drowning victim fixed is lifted.

4. The portable rescue device for injured persons who have fallen into the water as described in claim 1, characterized in that, The hoisting mechanism includes four slings with hanging rings at the bottom and top, hooks attached to each hanging ring, and lifting rings attached to the hooks. The four lifting lugs are fixedly connected to the corresponding slings through the bottom hanging rings. The four slings pass through the lifting slots on the back plate and the soft bottom plate in sequence and are then fixedly connected to the lifting rings through the top hanging rings and hooks. The connecting strap at the top of each lifting release pin passes through the holes on the top of the corresponding transverse reinforcing rib, the back plate, and the soft base plate in sequence, and is then fixedly connected to the corresponding lifting strap.

5. The portable rescue device for injured persons who have fallen into the water at sea as described in claim 1, characterized in that, The body immobilizer includes a head and neck immobilizer, a chest and waist immobilizer, a leg immobilizer, and a foot immobilizer. The head and neck immobilizer and the chest and waist immobilizer are fixed to a first soft base plate, and the leg immobilizer and the foot immobilizer are fixed to a second soft base plate.

6. The portable rescue device for injured persons who have fallen into the water as described in claim 1, characterized in that, The bottom of the back plate is provided with a sleeve anti-interference groove corresponding to the sleeve position. The first back plate and the second back plate are connected by a back plate connecting strip. The ends of the first back plate and the second back plate are both equipped with docking slide plates. The positioning system is installed inside the docking slide plate of the second back plate. Its four corners are surrounded by protective pads made of polyurethane material with added flame retardant.

7. The portable rescue device for injured persons who have fallen into the water at sea as described in claim 1, characterized in that, The device also includes a sunshade mechanism, which includes a sunshade body made of a first sunshade cloth and a second sunshade cloth, a first sunshade cloth bracket embedded in cylindrical holes at both ends of the first sunshade cloth, and a second sunshade cloth bracket embedded in cylindrical holes at both ends of the second sunshade cloth. One side of the first sunshade cloth and the second sunshade cloth are respectively fixed to both sides of the airbag body. Magnetic buckles and hook-and-loop fasteners are fixed at intervals at the connection between the other side of the first sunshade cloth and the second sunshade cloth. Multiple hook-and-loop fasteners for attaching the hoisting mechanism are also arranged on the inner walls of the first sunshade cloth and the second sunshade cloth.

8. The portable rescue device for injured persons who have fallen into the water at sea as described in claim 1, characterized in that, The first back plate and the first soft bottom plate are bonded together, and the second back plate and the second soft bottom plate are bonded together. Multiple medicine bags are provided in the stretcher receiving cavity of the airbag body and on both sides of the foldable stretcher. Reflective strips are provided on the outer side of the airbag body.

Images