Portable anti-drowning dual-purpose lifesaving device

Abstract

The invention discloses a portable anti-drowning dual-purpose lifesaving device, relates to the field of lifesaving devices, and solves the problems that an existing portable anti-drowning dual-purpose lifesaving device is difficult to stably float the head upwards in the floating process during use and is not convenient and efficient enough to use, and the portable anti-drowning dual-purpose lifesaving device comprises a fixing mechanism, a rescue mechanism and two groups of arc-shaped pipes, the fixing mechanism comprises shoulder pads, fixing pieces and connecting pieces, the rescue mechanism comprises an air inflation bag and a storage pipe, the two arc-shaped pipes form a circular ring structure through the fixing mechanism, the circular ring structure is arranged on the neck in a sleeving mode, then the shoulder pads on the two sides are fixed to the shoulders through the fixing pieces, and the situation that the whole structure is loosened is avoided; the inflation and deflation states of high-pressure gas in the storage pipe are controlled through the rescue mechanism, so that the inflation bags are inflated and expanded as needed, the two sides of the head float integrally, it is guaranteed that the head is stably located above the water surface, the rescue efficiency is improved, the overall structure is small and exquisite, wearing and using are convenient, and the fixed structure is relatively stable.

Description

Technical Field

[0001] The present invention relates to the technical field of life-saving devices, and specifically relates to a portable dual-purpose anti-drowning life-saving device. Background Art

[0002] When people are engaged in activities such as swimming and water sports, in order to prevent drowning, they generally need to wear anti-drowning devices such as life jackets or life rings. However, the existing anti-drowning devices generally have a relatively large volume and are not convenient to carry.

[0003] When in use, it is generally necessary to first lift the head of the trapped person. However, some existing devices often float people's arms and trunks during the floating process. For some people who cannot swim and are more flustered, the body is prone to tilting, resulting in their heads still being likely to be submerged in the water, thus posing a safety hazard and the use process is not stable and efficient enough. Summary of the Invention

[0004] The purpose of the present invention is to provide a portable dual-purpose anti-drowning life-saving device that is convenient to improve the rescue stability and use efficiency, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A portable dual-purpose anti-drowning life-saving device, including a fixing mechanism, a rescue mechanism, and two groups of arc-shaped tubes. The fixing mechanism includes shoulder pads fixedly installed on the sides of the arc-shaped tubes. The shoulder pads are provided with fixing parts for fixing to the shoulders. A connecting part is provided between the two groups of arc-shaped tubes for connecting to form a circular ring and sleeving outside the neck. The fixing mechanism can form a circular ring structure by the connecting part to sleeve the two groups of arc-shaped tubes on the neck, and then fix the shoulder pads on both sides to the shoulders through the fixing parts to prevent the overall structure from loosening. The rescue mechanism includes an air inflation bag fixedly installed on the shoulder pads. A storage tube is arranged inside the arc-shaped tube. The storage tube is arc-shaped and is movably sleeved with the inner wall of the arc-shaped tube. The rescue mechanism can control the charging and discharging state of the high-pressure gas in the storage tube, so that the air inflation bag inflates and expands when needed, floating the two sides of the head as a whole, ensuring that the head is stably above the water surface, improving the rescue efficiency, and being convenient to improve the rescue stability and use efficiency.

[0006] Preferably, the rescue mechanism further includes a connecting pipe fixedly installed on the side of the arc-shaped pipe. One end of the connecting pipe is connected to the air inflation bag in a communicating manner. A fixing block is fixedly connected inside the storage pipe. A first sliding groove is formed on the fixing block. A second sliding groove capable of communicating with the connecting pipe and the first sliding groove is formed on the fixing block. A docking member for controlling the docking state between the connecting pipe and the second sliding groove is provided inside the fixing block, facilitating the inflation and deflation of the high-pressure gas in the storage pipe, enabling the air inflation bag to be inflated and expanded when needed, floating the two sides of the head as a whole, ensuring that the head is stably above the water surface, and improving the rescue efficiency.

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

[0008] Preferably, the control member includes a first control valve fixedly installed inside the fixing block. A first pipeline for communicating the storage pipe with the first sliding groove is formed inside the fixing block. A second pipeline for communicating the first sliding groove with the input end of the first control valve is formed inside the fixing block. A third pipeline for communicating the output end of the first control valve with the second sliding groove is formed inside the fixing block. A bent pipe capable of communicating with the first sliding groove and one end of the second pipeline is formed inside the driving block, facilitating the control of the inflation state.

[0009] Preferably, the connecting member includes a stop block fixedly installed on the inner wall of one end of the arc-shaped pipe. A first elastic block is provided between the two arc-shaped pipes. 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 pipe. A second control valve capable of controlling the gas transmission state inside the arc-shaped pipe is provided on the side of the arc-shaped pipe. An adjusting member capable of adjusting the inner diameter of the formed ring is provided between the two arc-shaped pipes, facilitating the connection to form a circular ring and sleeving it outside the neck.

[0010] Preferably, the adjusting member includes a threaded pipe fixedly connected to one end of the arc-shaped pipe. A second elastic block is provided between the two arc-shaped pipes. Threaded cylinders capable of being threadedly connected to the threaded pipe are rotatably connected to both ends of the second elastic block. Rubber blocks are fixedly connected to both ends of the second elastic block. The rubber blocks can be slidably inserted into the inner wall of the threaded pipe, facilitating the adjustment of the inner diameter of the formed ring.

[0011] Preferably, the fixing member includes a strap fixedly installed on one side of the bottom end of the shoulder pad. A fixing ring is fixedly connected to the side of the shoulder pad away from the strap. The side of the strap is fixedly connected with a hook-and-loop fastener rough surface. The strap can be slidably connected to the inner wall of the fixing ring. One end of the strap is fixedly connected with a hook-and-loop fastener hook surface, which is convenient for fixing the whole device to the shoulder.

[0012] Preferably, a through hole is provided in the middle of the shoulder pad, and an exhaust valve is provided at the bottom of the air inflation bag. The exhaust valve is located in the through hole, which is convenient for preventing the air inflation bag from exhausting due to accidental touch of the exhaust valve during the process of calling for help.

[0013] Preferably, the control member 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 on-off state of the first control valve. A one-way valve for controlling the one-way flow of gas from the docking pipe into the air inflation bag is fixedly connected in the connecting pipe, which is convenient for controlling the on-off state of the first control valve.

[0014] Preferably, an inflation valve is provided at one end of the storage pipe, which is convenient for filling the storage pipe with the required high-pressure gas for repeated use.

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

[0016] A portable anti-drowning dual-purpose life-saving device provided by the present invention solves the problems that it is difficult to stably float the head during the floating process when the existing portable anti-drowning dual-purpose life-saving device is used, and the use is not convenient and efficient enough. Through the fixing mechanism, the connecting member forms a circular structure by sleeving two arc-shaped pipes around the neck, and then the shoulder pads on both sides are fixed to the shoulders through the fixing member to avoid the overall loosening of the structure. Through the rescue mechanism, the charging and discharging state of the high-pressure gas in the storage pipe is controlled, so that the air inflation bag inflates and expands under the required conditions, floating the two sides of the head as a whole, ensuring that the head is stably above the water surface, improving the rescue efficiency, the overall structure is small and compact, convenient for wearing and using, and the structure after fixation is relatively stable and will not shift or tilt. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 is a schematic diagram of a partial structure of the fixing member of the present invention;

[0019] Figure 3 is Figure 2 the enlarged view of area A in

[0020] Figure 4Schematic diagram of the partial structure of the connecting piece of the present invention;

[0021] Figure 5 Schematic diagram of the partial structure of the adjusting piece of the present invention;

[0022] Figure 6 is Figure 5 Enlarged view of area B in

[0023] Figure 7 Exploded view of the partial structure of the connecting piece of the present invention;

[0024] Figure 8 Schematic diagram of the partial structure of the docking piece of the present invention;

[0025] Figure 9 Cross-sectional view of the partial structure of the control piece of the present invention;

[0026] Figure 10 is Figure 9 Enlarged view of area C in

[0027] In the figure: 1 - arc tube; 2 - shoulder pad; 3 - fixing piece; 4 - connecting piece; 5 - air inflation bag; 6 - storage tube; 7 - connecting tube; 8 - fixing block; 9 - first chute; 10 - second chute; 11 - docking piece; 12 - tension spring; 13 - driving block; 14 - spring; 15 - docking tube; 16 - control piece; 17 - first control valve; 18 - first pipeline; 19 - second pipeline; 20 - third pipeline; 21 - elbow pipe; 22 - stop block; 23 - first elastic block; 24 - rubber column; 25 - second control valve; 26 - adjusting piece; 27 - threaded tube; 28 - second elastic block; 29 - threaded cylinder; 30 - rubber block; 32 - strap; 33 - fixing ring; 34 - hook surface of Velcro; 35 - loop surface of Velcro; 36 - through hole; 37 - exhaust valve; 38 - water pressure sensor; 39 - one-way valve; 40 - inflation valve. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 - 10, the present invention provides a technical solution: a portable dual-purpose anti-drowning rescue device, including a fixing mechanism, a rescue mechanism and two arc-shaped tubes 1. The fixing mechanism includes a shoulder pad 2 fixedly installed on the side of the arc-shaped tube 1. The shoulder pad 2 is provided with a fixing member 3 for fixing to the shoulder. A connecting member 4 is provided between the two arc-shaped tubes 1 for connecting each other to form a circular ring and sleeving outside the neck. The fixing mechanism can form a circular structure by the connecting member 4 to sleeve the two arc-shaped tubes 1 on the neck, 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 air inflation bag 5 fixedly installed on the shoulder pad 2. A storage tube 6 is arranged in the arc-shaped tube 1. The storage tube 6 is arc-shaped and is movably sleeved with the inner wall of the arc-shaped tube 1. The rescue mechanism can control the charging and discharging state of the high-pressure gas in the storage tube 6, so that the air inflation bag 5 inflates and expands under the required conditions, floating the two sides of the head as a whole, ensuring that the head is stably above the water surface and improving the rescue efficiency.

[0030] The rescue mechanism further 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 and communicated with the air inflation bag 5. A fixing block 8 is fixedly connected in the storage tube 6. A first sliding groove 9 is opened on the fixing block 8. A second sliding groove 10 is opened on the fixing block 8, which can be connected and communicated with the connecting tube 7 and the first sliding groove 9. A docking member 11 is arranged in the fixing block 8 for controlling the docking state of the connecting tube 7 and the second sliding groove 10.

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

[0032] The control member 16 includes a first control valve 17 fixedly installed in the fixing block 8. A first pipeline 18 for connecting and communicating the storage tube 6 and the first sliding groove 9 is opened in the fixing block 8. A second pipeline 19 for connecting and communicating the first sliding groove 9 and the input end of the first control valve 17 is opened in the fixing block 8. A third pipeline 20 for connecting and communicating the output end of the first control valve 17 and the second sliding groove 10 is opened in the fixing block 8. A bent pipe 21 capable of being connected and communicated with the first sliding groove 9 and one end of the second pipeline 19 is opened in the driving block 13.

[0033] The connecting member 4 includes a stopper 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 groups of arc-shaped tubes 1. Both ends of the first elastic block 23 are fixedly connected with rubber columns 24 respectively. 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 capable of controlling the gas transmission state in the arc-shaped tube 1 is provided on the side of the arc-shaped tube 1. An adjusting member 26 capable of adjusting the inner diameter size of the formed ring is provided between the two groups of arc-shaped tubes 1.

[0034] The adjusting member 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 groups of arc-shaped tubes 1. Both ends of the second elastic block 28 are rotatably connected with threaded cylinders 29 capable of being threadedly connected to the threaded tube 27. Both ends of the second elastic block 28 are fixedly connected with rubber blocks 30 respectively. The rubber blocks 30 can be slidably inserted into the inner wall of the threaded tube 27.

[0035] The fixing member 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 hook-and-loop fastener rough surface 34 is fixedly connected to the side of the strap 32. The strap 32 can be slidably connected to the inner wall of the fixing ring 33. A hook-and-loop fastener 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 air-filled bag 5. The exhaust valve 37 is located in the through hole 36.

[0036] The control member 16 further 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 material. 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 one-way flow of gas from the docking tube 15 into the air-filled bag 5 is fixedly connected in the connecting pipe 7.

[0037] In this embodiment, during use, first insert the storage tube 6 filled with high-pressure gas into the arc tube 1 from the end of the arc tube 1 far away from the threaded tube 27. Due to the blockage of the stopper 22 and the guiding of the curvature of the arc tube 1, the position of the storage tube 6 in the arc tube 1 is relatively fixed. At this time, since the storage tube 6 is filled with high-pressure gas, the air pressure pushes the driving block 13 to slide towards the second chute 10, so that the elbow 21 is connected to one end of the second pipe 19. At the same time, the spring 14 is pushed, and one end of the docking tube 15 slides out of the second chute 10. During installation, the docking tube 15 needs to be pressed into the second chute 10 first to slightly compress the spring 14 before the storage tube 6 can be inserted into the arc tube 1. When the storage tube 6 is inserted into the set position, the docking tube 15 reaches the position of the connecting tube 7 and is ejected by the spring 14, so that the docking tube 15 is ejected to be inserted and connected with the connecting tube 7 to complete the limit connection. Then, the rubber columns 24 at both ends of the first elastic block 23 are respectively inserted into the arc tubes 1 on both sides. At this time, the second control valve 25 needs to be opened for exhaust, so that the gas in the arc tube 1 is discharged from the second control valve 25 during the insertion of the rubber column 24 into the arc tube 1. Then, the second control valve 25 is closed, and the connection between the arc tube 1 and the first elastic block 23 is completed through the negative pressure in the arc tube 1 and the sealed fit state between the rubber column 24 and the arc tube 1.

[0038] Put the whole composed of two arc tubes 1 and the first elastic block 23 around the neck, so that the first elastic block 23 is at the back of the neck. The front position is threadedly connected to the adjacent threaded tube 27 through the threaded cylinders 29 on both sides of the second elastic block 28. At the same time, the rubber rod is inserted into the threaded tube 27 to prevent water from entering the inside of the threaded tube 27 and the arc tube 1. By adjusting the number of turns of the threaded cylinder 29, the inner diameter of the overall ring structure can be adjusted so that the whole device is of a suitable size and is put around the neck. Then, put the shoulder pads 2 on both sides on the shoulders. The shoulder pads 2 can be made of latex material and can be used for both protecting the shoulders and preventing drowning and saving lives. Pass the strap 32 through the armpit, so that the hook surface 35 of the magic tape passes through the fixing ring 33, and then bend the hook surface 35 of the magic tape and paste it with the loop surface 34 of the magic tape to complete the fixation of this device. The overall structure is small and convenient to wear and use, and the fixed structure is relatively stable and will not shift or tilt.

[0039] When the front and rear groups of water pressure sensors 38 simultaneously sense that the water pressure remains greater than the set value for a period of time, for example, the water pressure remains greater than 1000 Pa (about the pressure at a position 10 cm underwater) within 20 seconds, it indicates that a drowning state may exist. Thus, the first control valve 17 is controlled to open, and the high-pressure gas in the storage tube 6 enters the first chute 9 through the first pipeline 18, then through the elbow pipe 21, the second pipeline 19, the first control valve 17, the third pipeline 20, the second chute 10, the docking pipe 15, the connecting pipe 7, and the one-way valve 39 and then enters the airbag 5, quickly inflating and expanding the airbag 5, which can drive the shoulders and the positions on both sides of the head to float, pulling the head out of the water surface to complete the life-saving operation.

[0040] After the rescue is completed, the hook surface 35 of the magic tape on the strap 32 is detached from the loop surface 34 of the magic tape and the strap 32 is loosened. The threaded cylinder 29 is rotated in the reverse direction to release the connection state between the two arc-shaped pipes 1, and then the arc-shaped pipe 1 and the shoulder pad 2 as a whole can be removed from the body. Then, the exhaust valve 37 inside the through hole 36 under the shoulder pad 2 is opened to discharge the gas inside the airbag 5. The position of the exhaust valve 37 is set under the shoulder pad 2, which can effectively avoid the situation of accidentally touching the exhaust valve 37 during the rescue and calling for help process. Only after the device is taken off after the rescue can the exhaust valve 37 be operated to open or close. After the gas in the airbag 5 is discharged, it can be folded and fixed for repeated use. After the second control valve 25 is opened, the outside gas can enter the arc-shaped pipe 1. At this time, the rubber column 24 can be pulled out of the arc-shaped pipe 1. Since the air pressure in the storage tube 6 decreases at this time, the pull spring 12 pulls back to drive the driving block 13 to pull one end of the spring 14, pulling the docking pipe 15 out of the connecting pipe 7. At this time, the storage tube 6 can be conveniently poured out from one end of the arc-shaped pipe 1.

[0041] It should be noted that: by closing the first control valve 17 and filling the storage tube 6 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 be reinstalled into the arc-shaped pipe 1 for repeated use. After the airbag 5 expands, its volume is relatively large, which can clamp and wrap both sides of the head, avoiding water from entering the ears and ensuring that the whole head is in a safe state of floating on the water surface.

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

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

Claims

1. A portable dual-purpose anti-drowning life-saving device, characterized in that, Including: Two groups of arc-shaped tubes (1); It further includes: A fixing mechanism, the fixing mechanism includes a shoulder pad (2) fixedly installed on the side of the arc-shaped tube (1), a fixing member (3) for fixing with the shoulder is provided on the shoulder pad (2), and a connecting member (4) for connecting the two groups of arc-shaped tubes (1) to form a circular ring and sleeving outside the neck is provided between the two groups of arc-shaped tubes (1). The fixing mechanism can form a circular structure by the connecting member (4) to sleeve the two groups of arc-shaped tubes (1) on the neck, and then fix the shoulder pads (2) on both sides to the shoulders through the fixing member (3); A rescue mechanism, the rescue mechanism includes an air inflation bag (5) fixedly installed on the shoulder pad (2), a storage tube (6) is arranged in the arc-shaped tube (1), the storage tube (6) is arc-shaped and is movably sleeved with the inner wall of the arc-shaped tube (1). The rescue mechanism can control the charging and discharging state of the high-pressure gas in the storage tube (6) so that the air inflation bag (5) inflates and expands when needed to float the two sides of the head as a whole.

2. The portable dual-purpose anti-drowning rescue device according to claim 1, characterized in that: The rescue mechanism further 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 and communicated with the air inflation bag (5), a fixing block (8) is fixedly connected in the storage tube (6), a first sliding groove (9) is opened on the fixing block (8), and a second sliding groove (10) capable of being connected and communicated with the connecting tube (7) and the first sliding groove (9) is opened on the fixing block (8). A docking member (11) for controlling the docking state of the connecting tube (7) and the second sliding groove (10) is arranged in the fixing block (8).

3. The portable dual-purpose anti-drowning life-saving device according to claim 2, characterized in that: The docking member (11) includes a tension spring (12) fixedly installed in the first sliding groove (9), one end of the tension spring (12) is fixedly connected with a driving block (13) slidably connected with the inner wall of the first sliding groove (9), a spring (14) is fixedly connected to the end of the driving block (13) away from the tension spring (12), a docking tube (15) slidably connected with the inner wall of the second sliding groove (10) is fixedly connected to the end of the spring (14) away from the driving block (13), the docking tube (15) can be inserted and communicated with the inner wall of the connecting tube (7), and a control member (16) for controlling the inflation state is arranged on the fixing block (8).

4. A portable dual-purpose anti-drowning rescue device according to claim 3, characterized in that: The control member (16) includes a first control valve (17) fixedly installed in the fixing block (8), a first pipeline (18) for connecting and communicating the storage tube (6) and the first sliding groove (9) is opened in the fixing block (8), a second pipeline (19) for connecting and communicating the first sliding groove (9) and the input end of the first control valve (17) is opened in the fixing block (8), a third pipeline (20) for connecting and communicating the output end of the first control valve (17) and the second sliding groove (10) is opened in the fixing block (8), and a bent pipe (21) capable of being connected and communicated with the first sliding groove (9) and one end of the second pipeline (19) is opened in the driving block (13).

5. The portable dual-purpose anti-drowning rescue device according to claim 4, characterized in that: The connecting member (4) includes a stopper (22) fixedly installed on the inner wall of one end of the arc-shaped pipe (1). A first elastic block (23) is provided between the two arc-shaped pipes (1). Both ends of the first elastic block (23) are fixedly connected with rubber columns (24) respectively. The rubber columns (24) are arc-shaped and can be inserted into the inner wall of one end of the arc-shaped pipe (1). A second control valve (25) capable of controlling the gas delivery state in the arc-shaped pipe (1) is provided on the side of the arc-shaped pipe (1). An adjusting member (26) capable of adjusting the inner diameter size of the formed ring is provided between the two arc-shaped pipes (1).

6. The portable dual-purpose anti-drowning life-saving device according to claim 5, characterized in that: The adjusting member (26) includes a threaded pipe (27) fixedly connected to one end of the arc-shaped pipe (1). A second elastic block (28) is provided between the two arc-shaped pipes (1). Both ends of the second elastic block (28) are rotatably connected with threaded barrels (29) capable of being threadedly connected with the threaded pipe (27). Both ends of the second elastic block (28) are fixedly connected with rubber blocks (30) respectively. The rubber blocks (30) can be slidably inserted into the inner wall of the threaded pipe (27).

7. A portable dual-purpose anti-drowning life-saving device according to claim 1, characterized in that: The fixing member (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 hook surface of Velcro (34) is fixedly connected to the side of the strap (32). The strap (32) can be slidably connected to the inner wall of the fixing ring (33). A loop surface of Velcro (35) is fixedly connected to one end of the strap (32).

8. A portable dual-purpose anti-drowning life-saving device according to claim 1, characterized in that: A through hole (36) is formed in the middle of the shoulder pad (2). An exhaust valve (37) is provided at the bottom of the air inflation bag (5). The exhaust valve (37) is located in the through hole (36).

9. A portable dual-purpose anti-drowning life-saving device according to claim 6, characterized in that: The control member (16) further 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 one-way flow of gas from the docking pipe (15) into the air inflation bag (5) is fixedly connected in the connecting pipe (7).

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

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