Portable dual-purpose anti-drowning lifesaving device

Abstract

This invention discloses a portable dual-purpose drowning prevention and rescue device, relating to the field of rescue devices. It solves the problem that existing portable dual-purpose drowning prevention and rescue devices are difficult to stabilize and float the head during use, resulting in inconvenience and inefficiency. The device includes a fixing mechanism, a rescue mechanism, and two sets of arc-shaped tubes. The fixing mechanism includes shoulder pads, fixing components, and connecting components. The rescue mechanism includes an inflatable bladder and a storage tube. The invention uses the fixing mechanism to connect the two sets of arc-shaped tubes into a ring structure that fits around the neck. The fixing components then secure the shoulder pads to the shoulders, preventing the overall structure from loosening. The rescue mechanism controls the inflation and deflation of the high-pressure gas in the storage tube, allowing the inflatable bladder to inflate as needed, floating the head on both sides and ensuring the head remains stable above the water surface, thus improving rescue efficiency. The overall structure is compact, easy to wear and use, and relatively stable after fixing.

Description

Technical Field

[0001] This invention relates to the field of lifesaving device technology, specifically a portable dual-purpose lifesaving device for preventing drowning. Background Technology

[0002] When people participate in activities such as swimming and water sports, they generally need to wear life jackets or life rings to prevent drowning. However, existing drowning prevention equipment is usually large and not convenient to carry.

[0003] When using such equipment, it is generally necessary to prioritize lifting the head of the trapped person. However, some existing equipment tends to lift the arms and torso during the floating process. For people who cannot swim and are in a panic, their bodies may tilt, causing their heads to remain submerged in the water, thus posing a safety hazard. The process is not stable or efficient enough. Summary of the Invention

[0004] The purpose of this invention is to provide a portable dual-purpose drowning prevention and rescue device that facilitates improved rescue stability and high efficiency, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable anti-drowning dual-purpose lifesaving device, comprising a fixing mechanism, a rescue mechanism, and two sets of arc-shaped tubes. The fixing mechanism includes shoulder pads fixedly installed on the sides of the arc-shaped tubes, with fixing members on the shoulder pads for fixing to the shoulders. A connecting member is provided between the two sets of arc-shaped tubes for interconnection and a ring-shaped structure fitted around the neck. The fixing mechanism can use the connecting member to form a ring-shaped structure of the two sets of arc-shaped tubes and fit it around the neck, and then use the fixing member to fix the shoulder pads on both sides to the shoulders, preventing the overall structure from loosening. The rescue mechanism includes an inflatable bladder fixedly installed on the shoulder pads. A storage tube is provided inside the arc-shaped tube and is movably fitted with the inner wall of the arc-shaped tube. The rescue mechanism can control the inflation and deflation of the high-pressure gas in the storage tube, so that the inflatable bladder inflates and expands when needed, making the two sides of the head float, ensuring that the head is stably above the water surface, improving rescue efficiency, and facilitating improved rescue stability and high efficiency of use.

[0006] Preferably, the rescue mechanism further includes a connecting pipe fixedly installed on the side of the arc-shaped tube, one end of the connecting pipe being connected to the inflatable bladder, a fixing block being fixedly connected inside the storage tube, a first sliding groove being provided on the fixing block, a second sliding groove being provided on the fixing block being able to communicate with the connecting pipe and the first sliding groove, and a docking component being provided inside the fixing block for controlling the docking state of the connecting pipe and the second sliding groove, so as to facilitate the inflation and deflation of the inflatable bladder when needed by controlling the inflation and deflation state of the high-pressure gas in the storage tube, so as to float the two sides of the head as a whole, ensuring that the head is stably above the water surface, and improving rescue efficiency.

[0007] Preferably, the docking component includes a tension spring fixedly installed in the first slide groove. One end of the tension spring is fixedly connected to a driving block that is slidably connected to the inner wall of the first slide groove. The end of the driving block away from the tension spring is fixedly connected to a spring. The end of the spring away from the driving block is fixedly connected to a connecting pipe that is slidably connected to the inner wall of the second slide groove. The connecting pipe can be inserted and communicated with the inner wall of the connecting pipe. The fixing block is provided with a control component for controlling the inflation state, which facilitates controlling the docking state of the connecting pipe and the second slide groove.

[0008] Preferably, the control component includes a first control valve fixedly installed within the fixed block, a first pipe for connecting the storage tube and the first slide groove within the fixed block, a second pipe for connecting the first slide groove and the input end of the first control valve within the fixed block, a third pipe for connecting the output end of the first control valve and the second slide groove within the fixed block, and a bent pipe for connecting one end of the first slide groove and the second pipe within the drive block, facilitating control of the inflation state.

[0009] Preferably, the connector includes a stop block fixedly installed on the inner wall of one end of the arc-shaped tube, a first elastic block is provided between the two sets of arc-shaped tubes, and rubber columns are fixedly connected to both ends of the first elastic block. The rubber columns are arc-shaped and can be inserted into the inner wall of one end of the arc-shaped tube. A second control valve is provided on the side of the arc-shaped tube to control the gas delivery state inside the arc-shaped tube. An adjusting member is provided between the two sets of arc-shaped tubes to adjust the inner diameter of the formed ring, so as to facilitate mutual connection and form a ring that fits around the neck.

[0010] Preferably, the adjusting component includes a threaded tube fixedly connected to one end of the arc-shaped tube, a second elastic block is provided between the two sets of arc-shaped tubes, and a threaded cylinder that can be threadedly connected to the threaded tube is rotatably connected to both ends of the second elastic block. A rubber block is fixedly connected to both ends of the second elastic block, and the rubber block can slide into the inner wall of the threaded tube to facilitate adjustment of the inner diameter of the formed ring.

[0011] Preferably, the fastener includes a strap fixedly installed on one side of the bottom end of the shoulder pad, a fixing ring fixedly connected to the side of the shoulder pad away from the strap, a Velcro surface fixedly connected to the side of the strap, the strap being slidably connected to the inner wall of the fixing ring, and a Velcro hook surface fixedly connected to one end of the strap, so as to facilitate fixing the entire device to the shoulder.

[0012] Preferably, the shoulder pad has a through hole in the middle, and the bottom of the airbag has an exhaust valve. The exhaust valve is located inside the through hole to prevent the airbag from being accidentally deflated during a distress call.

[0013] Preferably, the control component further includes a water pressure sensor fixedly installed on the first elastic block and the second elastic block. The water pressure sensor can control the opening and closing state of the first control valve. A one-way valve for controlling the unidirectional flow of gas from the connecting pipe into the inflatable bladder is fixedly connected inside the connecting pipe, which facilitates the control of the opening and closing state of the first control valve.

[0014] Preferably, one end of the storage tube is provided with an inflation valve to facilitate the repeated use of the high-pressure gas required to fill the storage tube.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention provides a portable dual-purpose drowning prevention and rescue device, which solves the problem that existing portable dual-purpose drowning prevention and rescue devices are difficult to stabilize and float the head during use, resulting in inconvenience and inefficiency. A fixing mechanism connects two sets of arc-shaped tubes to form a ring structure that fits around the neck. The shoulder pads on both sides are then fixed to the shoulders to prevent the overall structure from loosening. A rescue mechanism controls the inflation and deflation of high-pressure gas in the storage tubes, allowing the airbag to inflate as needed, floating the head on both sides and ensuring the head remains stable above the water surface, thus improving rescue efficiency. The overall structure is compact, easy to wear and use, and the fixed structure is relatively stable, preventing shifting or tilting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a partial structural diagram of the fastener of the present invention;

[0019] Figure 3 for Figure 2 Enlarged view of region A in the middle;

[0020] Figure 4This is a partial structural diagram of the connector of the present invention;

[0021] Figure 5 This is a partial structural diagram of the adjusting component of the present invention;

[0022] Figure 6 for Figure 5 Enlarged view of region B in the middle;

[0023] Figure 7 This is an exploded view of a portion of the connector structure of the present invention;

[0024] Figure 8 This is a partial structural diagram of the docking component of the present invention;

[0025] Figure 9 This is a partial structural cross-sectional view of the control component of the present invention;

[0026] Figure 10 for Figure 9 Enlarged view of region C.

[0027] In the diagram: 1-Arc-shaped tube; 2-Shoulder pad; 3-Fixed component; 4-Connector; 5-Inflatable bladder; 6-Storage tube; 7-Connecting tube; 8-Fixing block; 9-First slide groove; 10-Second slide groove; 11-Connecting component; 12-Tension spring; 13-Drive block; 14-Spring; 15-Connecting tube; 16-Control component; 17-First control valve; 18-First pipe; 19-Second pipe; 20-Third pipe; 21-Bend; 22-Stop block; 23-First elastic block; 24-Rubber column; 25-Second control valve; 26-Adjusting component; 27-Threaded tube; 28-Second elastic block; 29-Threaded cylinder; 30-Rubber block; 32-Strap; 33-Fixing ring; 34-Hook and loop fastener; 35-Hook and loop hook fastener; 36-Through hole; 37-Exhaust valve; 38-Water pressure sensor; 39-One-way valve; 40-Inflation valve. Detailed Implementation

[0028] 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, and 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.

[0029] Please see Figures 1-10This invention provides a technical solution: a portable anti-drowning dual-purpose lifesaving device, including a fixing mechanism, a rescue mechanism, and two sets of arc-shaped tubes 1. The fixing mechanism includes shoulder pads 2 fixedly installed on the side of the arc-shaped tubes 1. The shoulder pads 2 are provided with fixing members 3 for fixing to the shoulders. A connecting member 4 is provided between the two sets of arc-shaped tubes 1 for interconnection and is placed in a ring shape around the neck. The fixing mechanism can form a ring structure of the two sets of arc-shaped tubes 1 around the neck through the connecting member 4, and then fix the shoulder pads 2 on both sides to the shoulders through the fixing member 3 to prevent the overall structure from loosening. The rescue mechanism includes an inflatable bladder 5 fixedly installed on the shoulder pads 2. A storage tube 6 is provided inside the arc-shaped tubes 1. The storage tube 6 is arc-shaped and movably connected to the inner wall of the arc-shaped tubes 1. The rescue mechanism can control the inflation and deflation of the high-pressure gas in the storage tube 6 so that the inflatable bladder 5 inflates and expands when needed, making the two sides of the head float and ensuring that the head is stably above the water surface, thus improving rescue efficiency.

[0030] The rescue mechanism also includes a connecting pipe 7 fixedly installed on the side of the arc-shaped pipe 1. One end of the connecting pipe 7 is connected to the inflatable bladder 5. A fixing block 8 is fixedly connected inside the storage pipe 6. A first sliding groove 9 is provided on the fixing block 8. A second sliding groove 10 is provided on the fixing block 8 that can communicate with the connecting pipe 7 and the first sliding groove 9. A docking part 11 is provided inside the fixing block 8 to control the docking state between the connecting pipe 7 and the second sliding groove 10.

[0031] The docking component 11 includes a tension spring 12 fixedly installed in the first slide groove 9. One end of the tension spring 12 is fixedly connected to a drive block 13 that is slidably connected to the inner wall of the first slide groove 9. The end of the drive block 13 away from the tension spring 12 is fixedly connected to a spring 14. The end of the spring 14 away from the drive block 13 is fixedly connected to a connecting pipe 15 that is slidably connected to the inner wall of the second slide groove 10. One end of the storage tube 6 is provided with an inflation valve 40. The connecting pipe 15 can be inserted and connected to the inner wall of the connecting tube 7. The fixing block 8 is provided with a control component 16 for controlling the inflation state.

[0032] The control component 16 includes a first control valve 17 fixedly installed in the fixing block 8, a first pipe 18 for connecting the storage pipe 6 and the first slide 9 in the fixing block 8, a second pipe 19 for connecting the first slide 9 and the input end of the first control valve 17 in the fixing block 8, a third pipe 20 for connecting the output end of the first control valve 17 and the second slide 10 in the fixing block 8, and a bent pipe 21 for connecting one end of the first slide 9 and the second pipe 19 in the drive block 13.

[0033] The connector 4 includes a stop block 22 fixedly installed on the inner wall of one end of the arc-shaped tube 1. A first elastic block 23 is provided between the two sets of arc-shaped tubes 1. Rubber columns 24 are fixedly connected to both ends of the first elastic block 23. The rubber columns 24 are arc-shaped and can be inserted into the inner wall of one end of the arc-shaped tube 1. A second control valve 25 is provided on the side of the arc-shaped tube 1 to control the gas delivery state inside the arc-shaped tube 1. An adjusting component 26 is provided between the two sets of arc-shaped tubes 1 to adjust the size of the inner diameter of the formed ring.

[0034] The adjusting component 26 includes a threaded tube 27 fixedly connected to one end of the arc-shaped tube 1. A second elastic block 28 is provided between the two sets of arc-shaped tubes 1. Both ends of the second elastic block 28 are respectively rotatably connected to a threaded cylinder 29 that can be threadedly connected to the threaded tube 27. Both ends of the second elastic block 28 are respectively fixedly connected to a rubber block 30, which can slide into the inner wall of the threaded tube 27.

[0035] The fastener 3 includes a strap 32 fixedly installed on one side of the bottom end of the shoulder pad 2. A fixing ring 33 is fixedly connected to the side of the shoulder pad 2 away from the strap 32. A Velcro surface 34 is fixedly connected to the side of the strap 32. The strap 32 can slide and connect with the inner wall of the fixing ring 33. A Velcro hook surface 35 is fixedly connected to one end of the strap 32. A through hole 36 is opened in the middle of the shoulder pad 2. An exhaust valve 37 is provided at the bottom of the airbag 5. The exhaust valve 37 is located in the through hole 36.

[0036] The control component 16 also includes a water pressure sensor 38 fixedly installed on the first elastic block 23 and the second elastic block 28. Both the first elastic block 23 and the second elastic block 28 are made of rubber. The water pressure sensor 38 can control the opening and closing state of the first control valve 17. A one-way valve 39 for controlling the one-way flow of gas from the connecting pipe 15 into the inflatable bladder 5 is fixedly connected inside the connecting pipe 7.

[0037] In this embodiment, during use, the storage tube 6 containing high-pressure gas is first inserted into the arc-shaped tube 1 from the end furthest from the threaded tube 27. Due to the obstruction of the stop block 22 and the guidance of the arc curvature of the arc-shaped tube 1, the position of the storage tube 6 within the arc-shaped tube 1 is relatively fixed. At this time, since the storage tube 6 contains high-pressure gas, the gas pressure pushes the drive block 13 to slide towards one side of the second slide groove 10, so that the bent tube 21 is connected to one end of the second pipe 19. At the same time, the spring 14 is pushed, causing one end of the connecting tube 15 to slide out of the second slide groove 10. During installation, the connecting tube 15 needs to be pressed into the second slide groove 10 first, so that the spring 14 is slightly compressed, before the storage tube 6 can be inserted. Inside the arc-shaped tube 1, after the storage tube 6 is inserted to the set position, the connecting tube 15 reaches the position of the connecting tube 7 and is popped out by the spring 14, so that the connecting tube 15 pops out and is inserted into the connecting tube 7 to complete the limiting connection. Then, the rubber columns 24 at both ends of the first elastic block 23 are inserted into the arc-shaped tube 1 on both sides respectively. At this time, the second control valve 25 needs to be opened to vent, so that the gas in the arc-shaped tube 1 is discharged from the second control valve 25 during the process of the rubber column 24 being inserted into the arc-shaped tube 1. Then, the second control valve 25 is closed. The connection between the arc-shaped tube 1 and the first elastic block 23 is completed by the negative pressure in the arc-shaped tube 1 and the sealed fit between the rubber column 24 and the arc-shaped tube 1.

[0038] The entire assembly consisting of two sets of arc-shaped tubes 1 and the first elastic block 23 is placed around the neck, with the first elastic block 23 positioned behind the neck. The front position is connected to the adjacent threaded tube 27 via threaded cylinders 29 on both sides of the second elastic block 28. At the same time, rubber blocks 30 are inserted into the threaded tubes 27 to prevent water from entering the threaded tubes 27 and the arc-shaped tubes 1. By adjusting the number of rotations of the threaded cylinders 29, the inner diameter of the overall annular structure can be adjusted to ensure the device is the appropriate size to fit around the neck. Then, the shoulder pads 2 on both sides are placed on the shoulders. The shoulder pads 2 can be made of latex material and can serve both shoulder protection and drowning prevention purposes. The straps 32 are passed through the armpits so that the hook and loop fasteners 35 pass through the fixing ring 33. The hook and loop fasteners 35 are then bent and attached to the loop fasteners 34 to complete the fixation of the device. The overall structure is compact, easy to wear and use, and the fixed structure is relatively stable and will not shift or tilt.

[0039] When both sets of water pressure sensors 38 simultaneously detect that the water pressure is continuously greater than the set value for a period of time, such as the water pressure being greater than 1000Pa (approximately the pressure at a depth of 10cm) for 20 seconds, it indicates that the person may be drowning. This triggers the opening of the first control valve 17, allowing the high-pressure gas in the storage pipe 6 to enter the first slide 9 through the first pipe 18. The gas then passes through the bend pipe 21, the second pipe 19, the first control valve 17, the third pipe 20, the second slide 10, the connecting pipe 15, the connecting pipe 7, and the one-way valve 39 before entering the inflatable bladder 5. This rapidly inflates the inflatable bladder 5, causing the shoulders and sides of the head to float upwards, pulling the head out of the water and completing the rescue operation.

[0040] After the rescue is completed, unfasten the hook and loop sides of the strap 32 and loosen the strap 32. Rotate the threaded cylinder 29 in the opposite direction to disconnect the connection between the two curved tubes 1. Then, remove the curved tube 1 and shoulder pad 2 from the body. Next, open the vent valve 37 inside the through hole 36 below the shoulder pad 2 to release the air from the inflatable bladder 5. The vent valve 37 is located below the shoulder pad 2 to effectively prevent accidental activation during rescue calls. Only remove the vent valve after the rescue is complete. After the device is removed, the exhaust valve 37 can be opened and closed. After the gas in the inflatable bladder 5 is discharged, it can be folded and fixed and reused. After opening the second control valve 25, the outside gas can enter the arc-shaped tube 1. At this time, the rubber column 24 can be pulled out from the arc-shaped tube 1. Since the air pressure in the storage tube 6 is reduced at this time, the tension spring 12 pulls back and drives the drive block 13 to pull one end of the spring 14, pulling the connecting pipe 15 out from the connecting pipe 7. At this time, the storage tube 6 can be conveniently poured out from one end of the arc-shaped tube 1.

[0041] It is worth noting that: after closing the first control valve 17, the storage tube 6 is filled with the required high-pressure gas, such as carbon dioxide gas, through the inflation valve 40. The storage tube 6 filled with high-pressure gas can then be reinstalled into the arc-shaped tube 1 for reuse. The inflatable bladder 5 has a large volume after expansion, which can clamp and wrap the sides of the head, preventing water from entering the ears while ensuring that the head is in a safe state of floating on the surface.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable anti-drowning dual-purpose lifesaving device, characterized in that, include: Two sets of arc-shaped tubes (1); Also includes: The fixing mechanism includes a shoulder pad (2) fixedly installed on the side of the arc-shaped tube (1), and a fixing member (3) for fixing to the shoulder is provided on the shoulder pad (2). A connector (4) for connecting the two sets of arc-shaped tubes (1) to each other and being sleeved on the outside of the neck in a circular shape is provided between them. The fixing mechanism can form a circular structure of the two sets of arc-shaped tubes (1) and put it on the neck through the connector (4), and then fix the shoulder pads (2) on both sides to the shoulders through the fixing member (3). The rescue mechanism includes an inflatable bladder (5) fixedly installed on the shoulder pad (2). A storage tube (6) is provided inside the arc-shaped tube (1). The storage tube (6) is arc-shaped and movably connected to the inner wall of the arc-shaped tube (1). The rescue mechanism can control the inflation and deflation of the high-pressure gas inside the storage tube (6) to inflate the inflatable bladder (5) as needed, allowing the sides of the head to float. The rescue mechanism also includes a connecting tube (7) fixedly installed on the side of the arc-shaped tube (1). One end of the connecting tube (7) is connected to the inflatable bladder. The storage tube (6) is connected to the sac (5). A fixing block (8) is fixedly connected inside the storage tube (6). A first sliding groove (9) is provided on the fixing block (8). A second sliding groove (10) is provided on the fixing block (8) that can communicate with the connecting tube (7) and the first sliding groove (9). A docking part (11) is provided inside the fixing block (8) for controlling the docking state of the connecting tube (7) and the second sliding groove (10). The docking part (11) includes a tension spring (12) fixedly installed in the first sliding groove (9). One end of the tension spring (12) is fixedly connected to the first sliding groove (9). A drive block (13) is slidably connected to the inner wall of a slide groove (9). A spring (14) is fixedly connected to one end of the drive block (13) away from the tension spring (12). A connecting pipe (15) is fixedly connected to one end of the spring (14) away from the drive block (13) and slidably connected to the inner wall of the second slide groove (10). The connecting pipe (15) can be inserted and communicated with the inner wall of the connecting pipe (7). A control component (16) for controlling the inflation state is provided on the fixed block (8). The control component (16) includes a first control valve (1) fixedly installed in the fixed block (8). 7) A first pipe (18) for connecting the storage tube (6) and the first slide (9) is provided in the fixed block (8), a second pipe (19) for connecting the first slide (9) and the input end of the first control valve (17) is provided in the fixed block (8), a third pipe (20) for connecting the output end of the first control valve (17) and the second slide (10) is provided in the fixed block (8), and a bent pipe (21) for connecting one end of the first slide (9) and the second pipe (19) is provided in the drive block (13).

2. The portable anti-drowning dual-purpose lifesaving device according to claim 1, characterized in that: The connector (4) includes a stop block (22) fixedly installed on the inner wall of one end of the arc-shaped tube (1), a first elastic block (23) is provided between the two sets of arc-shaped tubes (1), and rubber columns (24) are fixedly connected to both ends of the first elastic block (23). The rubber columns (24) are arc-shaped and can be inserted into the inner wall of one end of the arc-shaped tube (1). A second control valve (25) is provided on the side of the arc-shaped tube (1) to control the gas delivery state inside the arc-shaped tube (1). An adjusting component (26) is provided between the two sets of arc-shaped tubes (1) to adjust the inner diameter of the formed ring.

3. A portable anti-drowning dual-purpose lifesaving device according to claim 2, characterized in that: The adjusting component (26) includes a threaded tube (27) fixedly connected to one end of the arc-shaped tube (1). A second elastic block (28) is provided between the two sets of arc-shaped tubes (1). Both ends of the second elastic block (28) are respectively rotatably connected to a threaded cylinder (29) that can be threadedly connected to the threaded tube (27). Both ends of the second elastic block (28) are respectively fixedly connected to a rubber block (30). The rubber block (30) can slide into the inner wall of the threaded tube (27).

4. A portable anti-drowning dual-purpose lifesaving device according to claim 1, characterized in that: The fastener (3) includes a strap (32) fixedly installed on one side of the bottom end of the shoulder pad (2). A fixing ring (33) is fixedly connected to the side of the shoulder pad (2) away from the strap (32). A Velcro surface (34) is fixedly connected to the side of the strap (32). The strap (32) can slide and connect with the inner wall of the fixing ring (33). A Velcro hook surface (35) is fixedly connected to one end of the strap (32).

5. A portable anti-drowning dual-purpose lifesaving device according to claim 1, characterized in that: The shoulder pad (2) has a through hole (36) in the middle, and the air bladder (5) has an exhaust valve (37) at the bottom, which is located inside the through hole (36).

6. A portable anti-drowning dual-purpose lifesaving device according to claim 3, characterized in that: The control component (16) also includes a water pressure sensor (38) fixedly installed on the first elastic block (23) and the second elastic block (28). The water pressure sensor (38) can control the on / off state of the first control valve (17). A one-way valve (39) for controlling the gas to flow unidirectionally from the connecting pipe (15) into the inflatable bladder (5) is fixedly connected inside the connecting pipe (7).

7. A portable anti-drowning dual-purpose lifesaving device according to claim 1, characterized in that: An inflation valve (40) is provided at one end of the storage tube (6).

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