Portable rescue device for seaborne drowning wounded personnel

Abstract

The portable rescue device for the seaborne wounded person falling into water comprises a foldable air bag, a foldable stretcher, a hoisting mechanism and a positioning system. According to the foldable air bag, an air inflation assembly communicated with the interior of an air bag body and an air inflation pull rope connected with the air inflation assembly are fixed in a containing groove in the air bag body, and stretcher connecting pieces are fixed to the four corners of the air bag body. The foldable stretcher comprises a stretcher body formed by splicing a first stretcher and a second stretcher through a sleeve, a back plate formed by splicing a first back plate and a second back plate, a soft bottom plate formed by splicing a first soft bottom plate and a second soft bottom plate, hoisting separation pins and lifting lugs are vertically installed at one ends of the first stretcher and the second stretcher, and corresponding stretcher connecting pieces are fixed to the bottoms of pin shafts of the four hoisting separation pins. The four lifting lugs are fixed with the lifting mechanism, and the connecting belt at the top of each lifting separation pin is fixed with the lifting mechanism; the hoisting mechanism is hoisted upwards, the pin shaft of each hoisting separation pin moves upwards to separate from the fixation of the stretcher connecting piece, so that the stretcher is separated from the air bag, and only the stretcher for fixing the drowning wounded is hoisted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rescue devices, in particular to a portable rescue device for a sea-drowned injured person. BACKGROUND

[0002] In sea rescue, common rescue supplies include life buoys and life jackets, which can provide buoyancy for the fallen person. The life buoy is convenient for the distressed person to hold in the water, and can timely make the head and face of the fallen person float on the water surface, but it is not convenient for the fallen person to move freely. The life jacket needs to be worn, but after being worn, it can be moved relatively freely and is convenient for self-rescue.

[0003] The existing rescue methods using life buoys and life jackets have the following defects: 1. They cannot be applied to fallen persons with body injuries, such as sea-drowned injured persons with spinal cord injuries or fractures; 2. The fallen person wearing a life buoy or a life jacket is still in the water, and due to the low temperature of seawater, the fallen person is prone to hypothermia during the waiting period for rescue; 3. The sea has different sea conditions, and the fallen person wearing a life buoy or a life jacket is still prone to drowning in a turbulent sea; 4. If the fallen person is injured, the injured person is prone to secondary injury during the transportation process. In view of the defects of the existing sea rescue methods, the present application designs a stretcher type portable rescue device suitable for sea-drowned injured persons. SUMMARY

[0004] The present application provides a portable rescue device for a sea-drowned injured person to solve the problems and deficiencies of the prior art.

[0005] The present application solves the above technical problems by the following technical solutions:

[0006] The present application provides a portable rescue device for a sea-drowned injured person, characterized in that it comprises a foldable air bag, a foldable stretcher, a hoisting mechanism and a positioning system.

[0007] The foldable air bag comprises a boat-shaped air bag body that can be folded in the length direction, a receiving groove is pre-provided on the air bag body in a non-folded position, a gas charging assembly and a gas charging pull rope connected with the gas charging assembly are fixed in the receiving groove and communicate with the inside of the air bag body, the upper surface of the gas charging assembly does not expose the upper surface of the receiving groove, and stretcher connecting pieces are respectively fixed at four corner positions in the stretcher receiving cavity of the air bag body.

[0008] The foldable stretcher comprises a stretcher body spliced by a first stretcher and a second stretcher through two sleeves, a backboard spliced by a first backboard and a second backboard, and a soft bottom board for a fallen swimmer to lie on, which is spliced by a first soft bottom board and a second soft bottom board, one end of two transverse reinforcing ribs of the first stretcher and the second stretcher is vertically installed with a lifting disengaging pin and a lifting lug, the pin shaft bottom of four lifting disengaging pins is fixed with corresponding stretcher connecting pieces, four lifting lugs are fixedly connected with a lifting mechanism penetrating a lifting slot on the backboard and the soft bottom board, the connecting belt at the top of each lifting disengaging pin penetrates a belt hole on the top of the corresponding transverse reinforcing rib, the backboard and the soft bottom board in sequence and is fixed with the lifting mechanism, each sleeve comprises a sleeve body and a sleeve limiting gap, a first sleeve hole and a second sleeve hole formed in the sleeve body, the other end of the two transverse reinforcing ribs of the first stretcher and the second stretcher is embedded with a first protrusion and a second protrusion respectively, the other end of the two transverse reinforcing ribs of the second stretcher is fixed with a convex column, when folding, two sleeves are sleeved on the first stretcher, when unfolding, when the convex column is limited in the corresponding sleeve limiting gap, the first protrusion penetrates the first sleeve hole and the second protrusion penetrates the second sleeve hole, so that the first stretcher and the second stretcher are fixedly connected, the splicing part of the first backboard and the second backboard is flexibly connected, the backboard bottom is embedded with a positioning system, the splicing part of the first soft bottom board and the second soft bottom board is flexibly connected, and the body fixer for fixing the body of the fallen swimmer is fixed on the soft bottom board.

[0009] When the lifting mechanism is lifted upward, the pin shaft of each lifting disengaging pin moves upward under the upward force to disengage the fixing of the stretcher connecting piece, so that the foldable stretcher and the foldable air bag are disengaged, and only the foldable stretcher on which the fallen swimmer is fixed is lifted.

[0010] The positive progress effect of the present application is that:

[0011] The stretcher type portable rescue device designed by the present application is suitable for fallen swimmers at sea, the fallen swimmers at sea lie on the stretcher of the portable rescue device, and will not be in water during the waiting for rescue and transportation process, so that the possibility of hypothermia of the fallen swimmers at sea is greatly reduced, at this time, the portable rescue device is at an inclined angle for preventing drowning, which is beneficial to prolong the waiting time for rescue at sea.

[0012] The present application is convenient to disassemble, the fallen swimmer lying on the stretcher and the stretcher are transported together during lifting and transportation, which can effectively prevent secondary injury of the swimmer during the transportation process, can effectively prevent hypothermia and drowning, and can prolong the waiting time for rescue at sea. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figures 1-5 It is a perspective view (unfolding state) of the portable rescue device of the preferred embodiment of the present application.

[0014] Figure 6 is a partial enlarged view of Figure 5

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

[0016] Figures 10-11 is a perspective view of a foldable airbag according to a preferred embodiment of the present application (unfolded state).

[0017] Figure 12 is a partial enlarged view of Figure 11

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

[0019] Figure 15 is a structural schematic view of a indexing pin according to a preferred embodiment of the present application (unfolded state).

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

[0021] Figure 17 is a structural schematic view of a indexing pin according to a preferred embodiment of the present application (unfolded state).

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

[0023] Figures 19-21 is a structural schematic view of a sleeve according to a preferred embodiment of the present application.

[0024] Figures 22-24 is a perspective view of a portable rescue device according to a preferred embodiment of the present application (folded state). DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] ​​For the convenience of description, only the parts related to the present application are shown in the drawings. The first, second, etc. involved in the present application are only for the convenience of describing the technical solutions of the present application and do not have a specific limiting effect, and are all generic, which does not constitute a limiting effect on the technical solutions of the present application. It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The terms "intermediate", "horizontal", "vertical", "longitudinal", "front", "back", "left", "right", "inner", "outer", etc. indicating the positional relationship are based on the positional relationship represented by the displayed drawings, and do not represent that the components referred to must be presented in the positional relationship expressed, which does not constitute a limiting effect on the technical solutions of the present application.

[0027] As shown in Figures 1-24 , the present application provides a portable rescue device for a fallen-in-sea injured person, the main design principles of the device include: simple and convenient operation, fast and reliable, structure strength and device stability meet, corrosion resistance, non-toxic, lightweight, etc.

[0028] The portable rescue device of the present application includes a foldable air bag 10, a foldable stretcher 20, a hoisting mechanism 30, a positioning system 40 and a sunshade mechanism 50.

[0029] The foldable air bag 10 is used to provide buoyancy and carry the fallen-in-sea injured person 100 and the upper mechanism, to provide a more stable rescue environment for the fallen-in-sea injured person, to reduce the possibility of worsening the injury of the fallen-in-sea injured person, and is the main body of the fast inflation and deployment function.

[0030] The foldable stretcher 20 is used as a support structure of the portable rescue device, to bear the overall load of the body and accessories of the fallen-in-sea injured person when waiting for rescue and hoisting supine, to realize the fast deployment, connection and fast docking with rescue boats and flat cars of the rescue stretcher, to facilitate the transfer of the fallen-in-sea injured person, and is the support part of the sea fixed support function.

[0031] The hoisting mechanism 30 is used to hoist and transport the fallen-in-sea injured person, to realize the fast hoisting and disengagement of the stretcher, and is the main body of the fast fixing and disengaging function (one-key hoisting) of the rescue hoist.

[0032] The positioning system 40 has the functions of positioning and reporting, and is used to determine the position of the fallen-in-sea injured person, and is the main body of the positioning and reporting function.

[0033] The sunshade mechanism 50 is used to provide a closed environment suitable for waiting for rescue for the fallen-in-sea injured person, has the functions of heat preservation, sun protection and ventilation, to avoid the worsening of the injury of the fallen-in-sea injured person.

[0034] Foldable air bag 10: including length direction foldable air bag body 101, air bag body 101 is unfolded and is boat-shaped, air bag body 101 is spliced by head air bag 1011 and tail air bag 1012, the top of head air bag 1011 is fixedly connected with long auxiliary air bag 1013, each long auxiliary air bag 1013 extends to the top end of tail air bag 1012 (close to the foot position of the fallen injured person when lying), that is, when foldable air bag 10 is completely unfolded, tail air bag 1012 is placed under long auxiliary air bag 1013.The head air bag 1011 is provided with a receiving groove, the receiving groove is fixed with an inflation assembly 103 and an inflation pull rope connected with the inflation assembly 103, the upper surface of the inflation assembly 103 does not expose the upper surface of the receiving groove, the stretcher receiving cavity of the air bag body 101 is fixed with a stretcher connecting piece 105 at four corner positions, the head and tail of the air bag body 101 are provided with exhaust quick release valves 106, the stretcher receiving cavity of the air bag body 101 is provided with a plurality of medicine bags 107 on both sides of the foldable stretcher 20, the outer side of the air bag body 101 is provided with a reflective strip 108, and the edge of the air bag body 101 is fixed with a reserved pull rope.

[0035] Wherein, the inflation pull rope includes first inflation pull rope 1041 and second inflation pull rope 1042, the receiving groove 102 includes gas cylinder receiving groove 1021 and first valve receiving groove 1022 and second valve receiving groove 1023 located on the opposite side of the gas cylinder receiving groove 1021.

[0036] The inflating assembly 103 comprises a gas cylinder protection shell 1031 installed in the gas cylinder accommodating groove 1021, a plurality of gas cylinder protection shell fixing ropes 1037 fixed on the head air bag 1011 and located at the top of the gas cylinder accommodating groove 1021, the gas cylinder protection shell fixing ropes 1037 can pass through the gas cylinder protection shell 1031, four gas cylinders 1032 are accommodated in the gas cylinder protection shell 1031, two of the four gas cylinders 1032 are communicated through a first communicating pipe 1033 which extends out of the gas cylinder protection shell 1031 towards the head air bag 1011, and the remaining two gas cylinders are communicated through a second communicating pipe 1034 which extends out of the gas cylinder protection shell 1031 towards the tail air bag 1012, the extending end of the first communicating pipe 1033 is fixed in communication with the head air bag 1011 through a first inflating quick-release valve 1035 accommodated in the first valve accommodating groove 1022, the extending end of the second communicating pipe 1034 is fixed in communication with the tail air bag 1012 through a second inflating quick-release valve 1036 accommodated in the second valve accommodating groove 1023, the first inflating quick-release valve 1035 and the second inflating quick-release valve 1036 are connected with a first inflating pull rope 1041 and a second inflating pull rope 1042 respectively, and the pull ring ends of the first inflating pull rope 1041 and the second inflating pull rope 1042 both extend out of the air bag body 101.

[0037] Each stretcher connecting member 105 comprises a stretcher connecting rope 1051, a stretcher connecting ring 1052 and a connecting rope base 1053, both ends of each stretcher connecting rope 1051 are connected with the stretcher connecting ring 1052 and the connecting rope base 1053, and the four connecting rope bases 1053 are fixed at the four corner positions of the stretcher accommodating cavity of the air bag body 101.

[0038] In the embodiment, the air bag body 101 is the core of the foldable air bag 10 and the main body of the rescue device, and needs to be able to carry the fallen injured and the upper mechanism, and provide a relatively stable rescue platform for the fallen injured, so as to reduce the possibility of the injury of the fallen injured getting worse. Among them, the long auxiliary air bag 1013 is used to assist the unfolding of the rescue stretcher; the stretcher connecting member 105 is used to connect the rescue stretcher, so as to realize the connection of the air bag and the stretcher when not hoisted; the air bag body 101 is provided as a separated head air bag 1011 and a tail air bag 1012, which is used to realize the sequential inflation of the air bag, so as to adjust the posture of the air bag in the water, so that it is about 45° with the water surface, and it is convenient to transfer the fallen injured from the water and fix them on the stretcher.

[0039] In the embodiment, the inflating assembly 103 needs to have the function of rapid inflation, so as to fill the air bag in a short time and carry out rescue operation. When in use, the pull ropes are pulled down in sequence, so as to realize the 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 shell and an internally fixed gas cylinder fixing plate. The protective shell shell is provided with a communication pipe hole position and a fixing rope hole position. The fixing rope hole position is used for connecting and fixing the gas cylinder protective shell 1031 and the air bag body 101 by the gas cylinder protective shell fixing rope 1037.

[0041] In this embodiment, the medicine bag 107 has the functions of packaging first-aid medicine, shark repellent and waterproof, etc., so as to realize the emergency treatment of the injured falling into the water and the driving of sharks. The medicine bag 107 is a square bag made of the same material as the air bag, and there are a total of 6 medicine bags, which are arranged on both sides of the air bag body 101. The inside of the medicine bag is packaged with self-help medicine, drinking water, food and shark repellent, etc.

[0042] The foldable stretcher 20 comprises a stretcher body 201 formed by splicing a first stretcher 2011 and a second stretcher 2012 via two sleeves 2013, a backboard 202 formed by splicing a first backboard 2021 and a second backboard 2022, and a soft bottom board 203 formed by splicing a first soft bottom board 2031 and a second soft bottom board 2032 for a wounded person who falls into the water to lie down. The first backboard 2021 and the second backboard 2022 are flexibly connected at their splicing points, the first soft bottom board 2031 and the second soft bottom board 2032 are flexibly connected at their splicing points, the first backboard 2021 and the first soft bottom board 2031 are bonded to each other, and the second backboard 2022 and the second soft bottom board 2032 are bonded to each other. The first stretcher 2011 and the second stretcher 2012 are both composed of H-shaped reinforcement ribs, wherein the two transverse reinforcement ribs are hollow tubes. One end of the two transverse reinforcement ribs of the first stretcher 2011 and the second stretcher 2012 are vertically installed with an indexing pin 2014 and a lifting ear 2015. The bottom of the pin shaft of the four indexing pins 2014 is fixed to the corresponding stretcher connecting piece 105. The four lifting ears 2015 are fixedly connected to the lifting mechanism 30 which is provided with a hanging groove 2023 on the back plate 202 and a hanging groove 2033 on the soft bottom plate 203. The connecting belt 204 connected to the top of each indexing pin 2014 passes through the corresponding transverse reinforcement rib top, the back plate 202 and the soft bottom plate 203 in turn and is fixed to the lifting mechanism 30. Each sleeve 2013 includes a sleeve body 20131 and a sleeve limiting notch 20132, a first set of holes 20133 and a second set of holes 20134 opened thereon. The other ends of the two transverse reinforcing ribs of the first stretcher 2011 and the second stretcher 2012 are respectively embedded 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 a protruding column 2019. When folded, the two sleeves 2013 are sleeved on 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 is inserted into the adjacent first hole 20133 and the second protrusion is inserted into the adjacent second 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 a body fixator for fixing the body of a casualty who falls into the water is fixed on the soft bottom plate 203.

[0043] The two ends of the two transverse reinforcing ribs of the first stretcher 2011 and the second stretcher 2012 are internally provided with upper horizontal seats 2016 and lower horizontal seats 2017 arranged in an upper-lower interval, each upper horizontal seat 2016 is fixed with a division pin 2014, the upper surface of each lower horizontal seat 2017 is provided with a corresponding stretcher connecting ring 1052 at the middle hole position, and the pin shaft bottom of each division pin 2014 is provided with a corresponding stretcher connecting ring 1052 and a middle hole of the lower horizontal seat 2017 so that the foldable stretcher 20 and the foldable air bag 10 are fixed, and the top of each division pin 2014 is connected with a connecting belt 204 which is sequentially provided with a belt hole on the top of the corresponding transverse reinforcing rib, the back plate 202 and the soft bottom plate 203 and is fixed with the hoisting mechanism 30.

[0044] The bottom of the back plate 202 is provided with a sleeve interference groove corresponding to the position of the sleeve 2013, the joint of the first back plate 2021 and the second back plate 2022 is connected by a back plate connecting belt 2025, and the end of the first back plate 2021 and the second back plate 2022 is provided with a docking sliding plate 2026.

[0045] The body fixator includes a head and neck fixator 2034, a chest and waist fixator 2035, a leg fixator 2036 and a foot fixator 2037, the head and neck fixator 2034 and the chest and waist fixator 2035 are fixed on the first soft bottom plate 2031, and the leg fixator 2036 and the foot fixator 2037 are fixed on the second soft bottom plate 2032.

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

[0047] In the embodiment, the back plate 202 is the main structure of the rescue stretcher, which needs to fill the gap of the stretcher body 201 and provide support for the upper soft bottom plate 203, and has the function of quick docking with rescue boats, flat cars and the like for the transfer of the fallen injured person. In addition, the connection mode of the first back plate 2021 and the second back plate 2022 needs to be flexible connection to facilitate the folding and storage of the rescue stretcher.

[0048] In the embodiment, the soft bottom plate 203 is a buffer mechanism of the rescue stretcher, which needs to reserve a certain space suitable for the fracture site to a certain extent for the fracture of the fallen injured person to avoid secondary injury and has comfort. The soft bottom plate 203 is a square plate made of polyurethane material, which is provided with a lifting groove and the like structure.

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

[0050] In this embodiment, the head and neck fixator 2034 can firmly fix the head and neck of the fallen water injured person, provide accurate positioning and effective protection for the head and neck, and prevent secondary injury caused by head shaking. The head and neck fixator 2034 is composed of a head and neck fixator main body, a nylon buckle belt, a front fixing belt, a grommet, and a neck pillow. When in use, the head and neck of the fallen water injured person can be fixed by pulling the buckle belt. When in use, the head is fixed by adjusting the length of the buckle belt to fit the contour of the head of the fallen water injured person.

[0051] The chest and waist fixator 2035 can fix the chest and waist of the fallen water injured person, and avoid the fallen water injured person from leaving the rescue stretcher when waiting for rescue and transportation. The chest and waist fixator 2035 is composed of a safety belt type buckle, a safety belt, a fixing clamp plate, a pull buckle, and a waist pillow. When in use, the two ends of the belt are connected by the safety buckle and the length of the safety belt is adjusted, so that the inside fixing clamp plate fits the contour of the chest and waist of the fallen water injured person to fix the chest and waist.

[0052] The leg fixator 2036 can fix the legs of the fallen water injured person, and avoid the fallen water injured person from leaving the rescue stretcher when waiting for rescue and transportation. The leg fixator 2036 is composed of a safety belt type buckle, a safety belt, a fixing clamp plate, and a pull buckle. When in use, the safety belt can be tightened by pulling down the safety belt on the lower side of the pull buckle. When in use, the two ends of the belt are connected by the safety buckle and the length of the safety belt is adjusted, so that the inside fixing clamp plate fits the contour of the legs of the fallen water injured person to fix the legs.

[0053] The foot fixator 2037 can fix the feet of the fallen water injured person, and avoid the fallen water injured person from leaving the rescue stretcher when waiting for rescue and transportation. The foot fixator 2037 is composed of a safety belt type buckle, a safety belt, a pull buckle, and a vertical belt. When in use, the two ends of the belt are connected by the safety buckle and the length of the safety belt is adjusted to fit the contour of the feet of the fallen water injured person to fix it.

[0054] The lifting mechanism 30 includes four lifting belts 301 with hanging rings at the bottom and top, hooks 302 hung with each hanging ring, and lifting rings 303 hung with the hooks 302. The four lifting lugs 2015 are fixedly connected with the corresponding lifting belts 301 through the bottom hanging rings. The four lifting belts 301 are fixedly connected with the lifting rings 303 through the top hanging rings and the hooks 302 after being sequentially threaded through the lifting grooves 2023 on the back plate 202 and the lifting grooves 2033 on the soft bottom plate 203. In this way, the connecting belts 204 connected to the top of each index pin 2014 are fixedly connected with the corresponding lifting belts 301 after being sequentially threaded through the holes on the top of the corresponding transverse reinforcing ribs, the back plate 202, and the soft bottom plate 203.

[0055] Positioning system 40: The positioning system 40 is installed inside the docking slide plate 2026 of the second back plate 2022, and its four corners are surrounded by protective pads made of polyurethane material added with flame retardant, which play a buffering and protective role. The positioning system 40 is composed of a Beidou positioning device body and a back clamp, has a waterproof shell, is fixed and protected by the protective pads and the fixing belt inside the docking slide plate 2026 of the second back plate 2022, and has Beidou No. 3 satellite communication and positioning functions, which are used to determine the position of the fallen injured person.

[0056] Sunshade mechanism 50: including a sunshade cloth main body 501 spliced by a first sunshade cloth 5011 and a second sunshade cloth 5012, a first sunshade cloth support 502 embedded in the cylindrical hole at the two ends of the first sunshade cloth 5011, and a second sunshade cloth support 503 embedded in the cylindrical hole at the two ends of the second sunshade cloth 5012, one side of the first sunshade cloth 5011 and the second sunshade cloth 5012 is fixed on both sides of the air bag body 101, and the other side of the first sunshade cloth 5011 and the second sunshade cloth 5012 is connected with a magnetic buckle 504 and a Velcro 505 at intervals, and the inner wall of the first sunshade cloth 5011 and the second sunshade cloth 5012 is also provided with 8 Velcro for bonding the hoisting mechanism 30.

[0057] In this embodiment, 8 Velcro are arranged on the inner wall of the sunshade cloth, which are used to bond the sling 301 in the hoisting mechanism, so as to realize the quick hoisting and separation of the rescue stretcher.

[0058] When the sunshade cloth of the rescue device is not unfolded, the hoisting mechanism 30 is attached to the inside of the sunshade mechanism by 8 Velcro, that is, the corners of the sling 301 are bonded, at this time the lifting rope on the upper part of the index pin 2014 is in a relaxed state, under the condition that the sunshade cloth is not separated from all the 2 Velcro on each side under the action of a certain external force, the Velcro will not be separated, and under the condition that the force on one side of the sunshade cloth does not exceed 48N (the sunshade cloth has 2 index pins 2014 on each side, which are connected with the corresponding sling 301, and the two slings 301 are connected through a lifting ring 303), the force on a single index pin 2014 does not exceed 24N under the condition that the angle between the sling 301 and the index pin 2014 is about 120°, and the index pin 2014 will not be pulled.

[0059] According to the underwater posture simulation experiment, the ideal device should be that the part of the device exposed to the water surface is enough to fix the head, neck and chest of the fallen injured person, which is about one third of the whole device. The angle between the part exposed to the water surface and the water surface is preferably 45°, which can reduce the resistance and make it easier for the fallen injured person to approach the head of the device. The buoyancy of the head air bag 1011 is slightly greater than the weight of the back plate 102, but not too large. The total width of the foldable stretcher 20 is about 60cm, which can ensure enough space for the shoulder width of an adult while being smaller than the arm length of an adult male.

[0060] In the state, according to the order of different states in the use process, it can be divided into three categories, which are folding state, storage state and unfolding state.

[0061] The operation process of the portable rescue device of the embodiment is as follows:

[0062] When there is a fallen-in-sea injured person, the portable rescue device is thrown to the vicinity of the fallen-in-sea injured person, the rescuer pulls down the first inflation pull rope 1041 (the first inflation pull rope is a red inflation pull rope) close to the head air bag 1011 and connected with the first inflation speed release valve 1035, so that the inside of the first inflation speed release valve 1035 connected with the two high-pressure gas cylinders 1032 is communicated, the gas in the two high-pressure gas cylinders 1032 passes through the first communication pipe 1033 and the first inflation speed release valve 1035 in turn to inflate the head air bag 1011 and the long auxiliary air bag 1013, the head air bag 1011 and the long auxiliary air bag 1013 are inflated, and then drive the upper and lower parts of the foldable stretcher 20 to unfold, so that the posture of the rescue device is inclined and forms about 45° with the water surface, and the upper air bag inflation is completed; after completion, the rescuer slides the sleeve 2013 connected on the first stretcher 2011 according to the direction of the sleeve limiting gap 20132 and sleeves it on the second stretcher 2012, to complete the unfolding and fixing of the upper and lower parts of the foldable stretcher 20.

[0063] The rescuer holds the fallen-in-sea injured person with one hand and holds the rescue device with the other hand. The fallen-in-sea injured person is slowly pushed onto the upper half of the rescue device (i.e. the position of the inflated head air bag 1011), and the head, neck and chest are first fixed by the head and neck fixator 2034 and the chest and waist fixator 2035. After fixing, the rescuer pulls down the second inflation pull rope 1042 (the second inflation pull rope is a blue inflation pull rope) connected with the second inflation speed release valve 1036, so that the inside of the second inflation speed release valve 1036 connected with the remaining two high-pressure gas cylinders 1032 is communicated, and the gas in the remaining two high-pressure gas cylinders 1032 passes through the second communication pipe 1034 and the second inflation speed release valve 1036 in turn to inflate the tail air bag 1012, the tail air bag 1012 is inflated, the tail air bag 1012 inflation is realized, the rescue device is adjusted from the inclined position to the horizontal position, and floats on the water surface, so that the fallen-in-sea injured person is completely out of the water and adheres to the rescue device, and then the lower body of the fallen-in-sea injured person is fixed by the leg fixator 2036 and the foot fixator 2037, and the fixing is completed.

[0064] After the above operation, the rescue personnel pull the sunshade cloth body 501, so that the magnetic buckle 504 and the Velcro 505 connected to the sunshade cloth body 501 are separated, and the sunshade cloth body 501 is supported by the sunshade cloth supports (the first sunshade cloth support 502 and the second sunshade cloth support 503) at both ends of the sunshade cloth body 501, and is connected by the magnetic buckle 504 and the Velcro 505, thereby realizing full coverage of the rescue device, and waiting for rescue hoisting.

[0065] During rescue, the rescue personnel open the sunshade cloth body 501, and hang the two lifting rings 303 in the lifting mechanism attached to the inside of the sunshade cloth on the rescue hoist of the helicopter, and thus the lifting action is ready. The helicopter docking signal is received, the winch is lowered, and the lifting starts. During the process of lifting the rescue stretcher by the helicopter, as the lifting belt 301 is gradually pulled up, the connecting belt 204 connected thereto is gradually straightened and drives the indexing pin 2014, so that the pin shaft in the indexing pin 2014 overcomes the spring pre-tightening force and is pulled up, and then the stretcher connecting ring 1052 is separated from the pin shaft, realizing one-key lifting separation of the foldable stretcher 20 and the foldable air bag 10, and only the foldable stretcher 20 on which the fallen injured person is fixed is lifted.

[0066] When a ship is used for rescue, the ship rescue personnel release the hook, the rescue personnel assist the hook to the reserved pull rope at the edge of the air bag, drag the rescue device to the edge of the rescue ship, pull the indexing pin 2014 to separate the foldable stretcher 20 and the foldable air bag 10, and then use the docking sliding plates 2026 at both ends of the foldable stretcher 20 to lift the stretcher to the rescue boat and return to the mother ship for treatment.

[0067] The helicopter or the rescue ship transports the fallen injured person to a hospital ship or other sea treatment platform, and the medical personnel use the docking sliding plates 2026 at both ends of the foldable stretcher 20 to slide the stretcher to the flat car for further treatment.

[0068] Although the specific embodiments of the present application are described above, those skilled in the art should understand that these are only illustrative, and the protection scope of the present application 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 application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A portable rescue device for a person in the water at sea, characterised in that, It includes foldable air bag, foldable stretcher, hoisting mechanism and positioning system; The foldable air bag includes a boat-shaped air bag body foldable in length direction, a receiving groove is pre-set on the air bag body in non-folded position, an inflation assembly and an inflation pull rope connected with the inflation assembly are fixed in the receiving groove and communicate with the inside of the air bag body, the upper surface of the inflation assembly does not expose the upper surface of the receiving groove, stretcher connectors are respectively fixed at four corner positions in the stretcher receiving cavity of the air bag body; The foldable stretcher includes a stretcher body formed by splicing a first stretcher and a second stretcher through two sleeves, a back plate formed by splicing a first back plate and a second back plate, and a soft bottom plate for a fallen soldier to lie on formed by splicing a first soft bottom plate and a second soft bottom plate, one end of two transverse reinforcing ribs of the first stretcher and the second stretcher is vertically installed with a hoisting disengagement pin and an ear, the pin shaft bottom of four hoisting disengagement pins is fixed with corresponding stretcher connectors, four ears are fixedly connected with the hoisting mechanism penetrating the hoisting position slots on the back plate and the soft bottom plate, the top of each hoisting disengagement pin is connected with a connecting belt which penetrates the holes on the top of the corresponding transverse reinforcing rib, the back plate and the soft bottom plate in turn and is fixed with the hoisting mechanism, each sleeve includes a sleeve body and a sleeve limiting gap, a first sleeve hole and a second sleeve hole are formed on the sleeve body, the other end of the two transverse reinforcing ribs of the first stretcher and the second stretcher is respectively embedded with a first protrusion and a second protrusion which can be stretched and contracted, the other end of the two transverse reinforcing ribs of the second stretcher is fixed with a protruding column, when folded, the two sleeves are sleeved on the first stretcher, when unfolded, the first protrusion penetrates the first sleeve hole protruding from the adjacent first sleeve hole and the second protrusion penetrates the second sleeve hole protruding from the adjacent second sleeve hole when the protruding column is limited in the corresponding sleeve limiting gap, 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 splicing position, the back plate is embedded with a positioning system at the bottom, the first soft bottom plate and the second soft bottom plate are flexibly connected at the splicing position, and the soft bottom plate is fixed with a body fixator for fixing the body of the fallen soldier; When the hoisting mechanism is hoisted upward, the pin shaft of each hoisting disengagement pin moves upward under the upward force to disengage the fixing of the stretcher connector, so that the foldable stretcher and the foldable air bag are disengaged, and only the foldable stretcher on which the fallen soldier is fixed is hoisted.

2. A portable rescue device for a casualty overboard at sea according to claim 1, characterised in that, The air bag body is formed by splicing a head air bag and a tail air bag, a receiving groove is pre-set on the head air bag, an inflation assembly and an inflation pull rope connected with the inflation assembly are fixed in the receiving groove and communicate with the inside of the head air bag and the inside of the tail air bag, two long auxiliary air bags are fixedly connected and communicated at the top of the head air bag on both sides, and each long auxiliary air bag extends to the top end of the tail air bag.

3. A portable rescue device for a casualty overboard at sea according to claim 2, characterised in that, The inflation pull rope includes a first inflation pull rope and a second inflation pull rope, the receiving groove includes a gas cylinder receiving groove and first valve receiving grooves and second valve receiving grooves located on the opposite sides of the gas cylinder receiving groove; The inflation assembly comprises a gas cylinder protection shell installed in the gas cylinder accommodating groove, a plurality of gas cylinders are arranged in the gas cylinder protection shell, part of the gas cylinders are communicated through the first communication pipe which extends out of the gas cylinder protection shell towards the head air bag, the rest of the gas cylinders are communicated through the second communication pipe which extends out of the gas cylinder protection shell towards the tail air bag, the extending end of the first communication pipe is fixedly connected with the head air bag through the first inflation quick-release valve accommodated in the first valve accommodating groove, the extending end of the second communication pipe is fixedly connected with the tail air bag through the second inflation quick-release valve accommodated in the second valve accommodating groove, the first inflation quick-release valve and the second inflation quick-release valve are connected with the first inflation pull rope and the second inflation pull rope respectively, and the pull ring ends of the first inflation pull rope and the second inflation pull rope extend out of the air bag body.

4. A portable rescue device for a casualty overboard at sea according to claim 3, characterised in that, A plurality of air cylinder protection shell fixing ropes for limiting and fixing the air cylinder protection shell are fixed on the head air bag and located at the top of the gas cylinder accommodating groove. Exhaust quick-release valves are installed on the head and tail of the air bag body.

5. The portable rescue device for a person overboard at sea according to claim 1, characterized in that, The two transverse reinforcing ribs of the first and second stretchers are hollow pipes, and the lifting disengagement pin is an index pin. Each of the stretcher connecting members comprises a stretcher connecting rope, a stretcher connecting ring and a connecting rope base, the two ends of each of the stretcher connecting ropes are connected with the stretcher connecting ring and the connecting rope base, and the four connecting rope bases are fixed at the four corner positions of the stretcher accommodating cavity of the air bag body. One end of the two transverse reinforcing ribs of the first and second stretchers is internally provided with upper and lower horizontal seats arranged in an upper-lower interval, each of the upper horizontal seats is fixed with an index pin, the upper surface of each of the lower horizontal seats is located at the middle hole position and is placed with a corresponding stretcher connecting ring, the pin shaft bottom of each of the index pins is just provided through the corresponding stretcher connecting ring and the middle hole of the lower horizontal seat to fix the foldable stretcher and the foldable air bag, and the connecting belt connected with the top of each of the index pins is sequentially provided through the belt holes on the top of the corresponding transverse reinforcing rib, the back plate and the soft bottom plate and is then fixed with the lifting mechanism. When the lifting mechanism is lifted upward, the pin shaft of each of the index pins moves upward under the upward force to disengage the fixing of the stretcher connecting ring, so that the foldable stretcher and the foldable air bag are disengaged, and only the foldable stretcher on which the fallen injured person is fixed is lifted.

6. The portable rescue device for a person overboard at sea according to claim 1, characterized in that, The lifting mechanism comprises four lifting belts each provided with a hanging ring at the bottom and the top, a hook hung with each of the hanging rings and a lifting ring hung with the hook, the four lifting lugs are fixedly connected with the corresponding lifting belts through the bottom hanging rings, and the four lifting belts are sequentially provided through the lifting position grooves on the back plate and the soft bottom plate and are then fixedly connected with the lifting ring through the top hanging ring and the hook. The connecting belt connected with the top of each of the lifting disengagement pins is sequentially provided through the belt holes on the top of the corresponding transverse reinforcing rib, the back plate and the soft bottom plate and is then fixedly connected with the corresponding lifting belt.

7. The portable rescue device for a person overboard at sea according to claim 1, characterized in that, The body fixator comprises a head and neck fixator, a chest and waist fixator, a leg fixator and a foot fixator, the head and neck fixator and the chest and waist fixator are fixed on the first soft bottom plate, and the leg fixator and the foot fixator are fixed on the second soft bottom plate.

8. The portable rescue device for a person overboard at sea according to claim 1, characterized in that, The bottom of the back plate is provided with a sleeve interference prevention groove corresponding to the sleeve position, the first back plate and the second back plate are connected by a back plate connecting belt, the end of the first back plate and the second back plate is provided with a docking sliding plate, and the positioning system is installed in the docking sliding plate of the second back plate and surrounded by the protection pad feet of the polyurethane material added with a flame retardant.

9. The portable rescue device for a person overboard at sea according to claim 1, characterized in that, The device further comprises a sunshade mechanism, the sunshade mechanism comprises a sunshade cloth main body spliced by a first sunshade cloth and a second sunshade cloth, a first sunshade cloth support embedded in a cylindrical hole at the head and tail of the first sunshade cloth, and a second sunshade cloth support embedded in a cylindrical hole at the head and tail of the second sunshade cloth, one side of the first sunshade cloth and the second sunshade cloth is fixed on both sides of the air bag body, and the other side of the first sunshade cloth and the second sunshade cloth is provided with a magnetic buckle and a hook and loop fastener at the connecting position.

10. The portable rescue device for a person overboard at sea according to claim 1, characterized in that, The first back plate and the first soft bottom plate are bonded, the second back plate and the second soft bottom plate are bonded, a plurality of medicine bags are arranged in the stretcher accommodating cavity of the air bag body and located on both sides of the foldable stretcher, and a reflective strip is arranged on the outer side of the air bag body.

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