Lifesaving composite belt for emergency survival

Abstract

The invention relates to the technical field of lifesaving equipment, in particular to a lifesaving composite belt for emergency survival, which comprises a first air bag belt, two groups of compressed air tanks are symmetrically mounted on the outer side of the first air bag belt, and first tying ropes are fixedly connected to joints at two ends of the first air bag belt; the backpack assembly comprises a neck buoyancy component and a fixing component, the neck buoyancy component is arranged at the top end of the first air bag belt, and the fixing component is arranged on the neck buoyancy component; a back support assembly; and a leg buoyancy assembly. Through mutual cooperation of the first air bag belt, the compressed air tank, the back supporting assembly and the leg buoyancy assembly, a user floating in water can quickly and conveniently change different floating states according to own requirements, the operation is simple, the survival rate of the user is improved, the two floating modes do not influence each other, and the user experience is improved. The use effect of the two floating modes is better, so that the survival rate of the user is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of life-saving equipment, in particular to a life-saving composite belt for emergency survival. Background Art

[0002] A lifebelt is a piece of equipment that provides buoyancy support to the wearer in an emergency. It is mainly used in scenarios such as water rescue, water sports, and ship safety. Lifebelts are usually made of high-quality materials, such as nylon, polyethylene foam, etc., and have high wear resistance, tear resistance, and aging resistance to ensure that they can maintain their performance under long-term use or in harsh environments. The core function of a lifebelt is to provide sufficient buoyancy to keep the wearer's head above water even in unfamiliar or dangerous waters, reducing the risk of drowning.

[0003] At present, most of the existing life belts are fixed to the user's waist, so that the user can only float on the water surface in an upright state holding the life belt when in the water. After floating for a long time, the user is prone to lose strength, thereby threatening the user's life safety. The patent application document with Chinese Patent Publication No. CN217227876U discloses an underwater life buoy with a supine cushion structure. Although the life buoy can be unfolded when in use through the provided supine cushion and the life buoy body, it is convenient for people to lie on their backs and wait for rescue. However, when using the device, the user needs to blow up and inflate the supine cushion with his mouth, which greatly consumes the user's physical strength, and the device cannot quickly and conveniently change the floating state in the water according to the user's own needs. If encountering a situation with strong winds and waves, the user may be hit by the waves and fall into the water, thereby threatening the user's life safety, and the practicality is not good. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing life belts in the prior art cannot quickly and conveniently change the floating state in the water according to the user's own needs. If there are strong winds and waves, the user may be hit by the waves and fall into the water, thereby threatening the user's life safety. A composite life-saving belt for emergency survival is proposed.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a composite life-saving belt for emergency survival, comprising a first airbag belt, two sets of compressed air tanks are symmetrically installed on the outer side of the first airbag belt, and first tethers are fixedly connected to the interfaces at both ends of the first airbag belt, and also comprising: A carrying assembly, the carrying assembly comprising a neck buoyancy component and a fixing component, the neck buoyancy component being arranged at the top end of the first airbag belt, and the fixing component being arranged on the neck buoyancy component, respectively used for increasing the buoyancy at the user's neck and for fixing the neck buoyancy component at the user's neck; A back support assembly, the back support assembly includes a mounting box, the mounting box is fixedly mounted at the middle position outside the first airbag belt, and an airbag winding component is arranged inside the mounting box, the airbag winding component includes a motor, the motor is fixedly mounted on the inner side wall of one side of the mounting box, and the output end of the motor is fixedly connected to a rotating rod, the end of the rotating rod away from the motor is rotatably connected to the inner side wall of the other side of the mounting box, and a third airbag belt is wound around the rotating rod, the end of the third airbag belt away from the rotating rod is fixedly connected to a conveying component, the third airbag belt is connected to the inside of the first airbag belt through the conveying component, and an extrusion component is arranged inside the mounting box for extruding the third airbag belt; The leg buoyancy component is arranged outside the first airbag belt, and is used to assist the user to float in the water and cooperate with the back support component to increase the buoyancy of the lower body of the user.

[0006] In the above-mentioned composite life-saving belt for emergency survival, a first pressure sensor is arranged inside the first airbag belt, and a control unit is arranged outside the first airbag belt.

[0007] In the above-mentioned emergency survival composite belt, the neck buoyancy component includes two groups of arc-shaped airbags, and the outer sides of the two groups of arc-shaped airbags are fixedly connected with silicone hollow square tubes, and the two groups of arc-shaped airbags are connected to the interior of the first airbag belt through the silicone hollow square tubes, one group of the silicone hollow square tubes is located at the top end of the first airbag belt near the interface, and the other group of the silicone hollow square tubes is located at the top end of the first airbag belt near the middle position.

[0008] In the above-mentioned emergency survival composite belt, a breathing tube is fixedly connected to the outside of one group of the arc-shaped airbags, and the arc-shaped airbag is connected to the outside through the breathing tube, and a first electromagnetic valve is fixedly installed on the breathing tube.

[0009] In the above-mentioned emergency survival life-saving composite belt, the fixed component includes a rotating shaft and two groups of arc plates, the outer sides of the two groups of arc plates are respectively fixedly connected to the inner sides of the two groups of arc airbags, the rotating shaft is located between the two groups of arc airbags, the two groups of arc plates are both rotatably connected to the rotating shaft, and the ends of the two groups of arc plates away from the rotating shaft are fixedly connected with a second tether.

[0010] In the above-mentioned emergency survival composite belt, a second pressure sensor and a fixing pipe are installed on one side of the installation box, and the fixing pipe cover is arranged outside the second pressure sensor.

[0011] In the above-mentioned emergency survival life-saving composite belt, the extrusion component includes two groups of extrusion rollers, both ends of the two groups of extrusion rollers are fixedly connected with rotating shafts, and the two groups of extrusion rollers are rotatably connected inside the installation box through the rotating shafts. The two groups of extrusion rollers are located between the rotating rod and the conveying component, and the end of the third airbag belt away from the rotating rod is located between the two groups of extrusion rollers.

[0012] In the above-mentioned life-saving composite belt for emergency survival, the conveying component includes a blocking strip and a through groove, the through groove is opened at the top of the installation box, the bottom end of the blocking strip is fixedly connected to the end of the third airbag belt away from the rotating rod, and the blocking strip is located in the through groove, the blocking strip is connected to the inside of the third airbag belt, and the top of the blocking strip is respectively fixedly connected with two groups of air inlet pipes and two groups of air outlet pipes, the blocking strip is respectively connected to the inside of the first airbag belt through the two groups of air inlet pipes and the two groups of air outlet pipes, the two groups of the air inlet pipes are respectively installed with a first one-way valve, and the two groups of the air outlet pipes are respectively installed with a second solenoid valve.

[0013] In the above-mentioned life-saving composite belt for emergency survival, the leg buoyancy component includes two groups of first Velcro and two groups of second airbag belts, the two groups of the first Velcro are symmetrically installed on the outside of the first airbag belt, and the two groups of the first Velcro are respectively located on both sides of the interface of the first airbag belt, the two groups of the second airbag belts are fixedly installed with the second Velcro at the middle position of the side close to the first Velcro, and the two groups of the second airbag belts are respectively bonded to the two groups of the first Velcro through the second Velcro, the two groups of the second airbag belts are fixedly connected with connecting tubes, and the two groups of the second airbag belts are connected to the inside of the first airbag belt through the connecting tube, the second one-way valve is fixedly installed on the connecting tube, the two groups of the second airbag belts are fixedly installed with the third Velcro at one end interface, and the two groups of the second airbag belts are fixedly installed with the fourth Velcro matching the third Velcro at the other side close to the other end interface, and the fourth Velcro and the third Velcro are bonded to each other.

[0014] In the above-mentioned emergency survival life-saving composite belt, it also includes a buoyancy adjustment component, which includes a fifth Velcro and two groups of mobile airbags. The fifth Velcro is fixedly installed on the side of the installation box away from the first airbag belt, and the six Velcro is fixedly installed on one side of the two groups of mobile airbags, and the two groups of mobile airbags are adhered to the fifth Velcro through the sixth Velcro. The bottom ends of the two groups of mobile airbags are fixedly connected with connecting tubes, and the two groups of mobile airbags are connected to the inside of the first airbag belt through the connecting tube, and a third one-way valve is fixedly installed on the connecting tube.

[0015] Compared with the prior art, the advantages of the present invention are: 1. The present invention enables a user floating in water to quickly and conveniently change different floating states according to his or her own needs through the mutual cooperation of the first airbag belt, the compressed air tank, the back support component and the leg buoyancy component. The operation is simple and the survival rate of the user is improved. When the life-saving composite belt is used normally, the first airbag belt is inflated by the compressed air tank. At this time, the user floats on the water in an upright state and can swim. When the user finds it more laborious to float in the water or feels physically exhausted, the life-saving composite belt can be changed to a lateral floating state to provide buoyancy for the user's back and legs. The user can lie flat and float on the water, thereby slowly recovering the user's physical strength and effectively prolonging the time waiting for rescue in the water. When the user wants to swim after recovering his or her physical strength or when there are large waves on the water, the life-saving composite belt can be changed to the original upright floating state. The two floating modes do not affect each other, so that the use effect of the two floating modes is better, thereby further improving the survival rate of the user.

[0016] 2. The present invention can adjust the buoyancy balance on both sides of the third airbag belt in the back support assembly through the setting of the buoyancy adjustment component, which can make the user float more steadily, thereby preventing the third airbag belt from flipping over, and can more effectively extend the time the user waits for rescue in the water and increase the chance of survival.

[0017] 3. The present invention can make the lifesaving composite belt more stably worn on the user through the arrangement of the carrying component, and at the same time can assist the first airbag belt to make the user float upright in the water, so that the user can quickly float to the water surface, thereby ensuring the safety of the user. In addition, when encountering a situation with strong winds and waves, through the arrangement of the breathing tube in the carrying component, a certain amount of air can be released for the user to breathe by containing the upper end of the breathing tube in the mouth and controlling the continuous opening and closing of the first solenoid valve on the breathing tube. Moreover, through the first pressure sensor and the compressed air tank, the buoyancy of the first airbag belt can be ensured while providing the user with breathing air, thereby reducing the possibility of the user being hit by water waves and having difficulty breathing, thereby improving the user's survival rate when the wind and waves are strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an emergency survival composite belt proposed by the present invention; Figure 2 A cross-sectional view of the first airbag belt structure of an emergency survival composite belt proposed by the present invention; Figure 3 This is a schematic structural diagram of a first airbag belt and a carrying assembly of a composite life-saving belt for emergency survival proposed by the present invention; Figure 4 This is a schematic diagram of the disassembly structure of the carrying component of the emergency survival composite life-saving belt proposed by the present invention; Figure 5 This is a schematic structural diagram of a first airbag belt, a leg buoyancy assembly and a control part of an emergency survival composite belt proposed by the present invention; Figure 6 This is a schematic diagram of the disassembly of the leg buoyancy component structure of an emergency survival composite life-saving belt proposed by the present invention; Figure 7 This is a schematic structural diagram of a back support assembly of a life-saving composite belt for emergency survival proposed by the present invention; Figure 8 This is a schematic diagram of the disassembly structure of the installation box, the fixing tube and the second pressure sensor of the emergency survival composite belt proposed by the present invention; Fig. 9 This is a schematic diagram of the internal structure of an installation box of an emergency survival composite belt proposed by the present invention; Fig.10 This is a schematic diagram of the structural disassembly of an installation box and a buoyancy adjustment component of a lifesaving composite belt for emergency survival proposed by the present invention.

[0019] In the figure: 1, first airbag belt; 2, compressed air tank; 3, carrying assembly; 31, neck buoyancy component; 311, silicone hollow square tube; 312, arc-shaped airbag; 313, breathing tube; 314, first solenoid valve; 32, fixing component; 321, arc-shaped plate; 322, rotating shaft; 323, second tether; 4, back support assembly; 41, installation box; 42, air outlet pipe; 421, second solenoid valve; 43, air inlet pipe; 431, first one-way valve; 44, airbag reeling component; 441, motor; 442, rotating rod; 443, first Three airbag belts; 444, blocking strips; 45, squeezing rollers; 46, fixing tubes; 47, second pressure sensors; 48, buoyancy adjustment components; 481, fifth Velcro; 482, sixth Velcro; 483, movable airbags; 484, connecting tubes; 485, third one-way valves; 5, leg buoyancy components; 51, first Velcro; 52, second Velcro; 53, second airbag belts; 54, third Velcro; 55, fourth Velcro; 56, connecting tubes; 57, second one-way valves; 6, first tethers; 7, first pressure sensors; 8, control unit. DETAILED DESCRIPTION

[0020] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Example

[0021] Reference Figures 1 to 5A composite life-saving belt for emergency survival includes a first airbag belt 1, two groups of compressed air tanks 2 are symmetrically installed on the outside of the first airbag belt 1, and first tethers 6 are fixedly connected to the interfaces at both ends of the first airbag belt 1, a first pressure sensor 7 is arranged inside the first airbag belt 1, and the internal pressure of the first airbag belt 1 is monitored by the first pressure sensor 7, and a control unit 8 is arranged outside the first airbag belt 1, and the operation of each component and part in the composite life-saving belt is controlled by the control unit 8, a carrying component 3 is arranged at the top of the first airbag belt 1, which is used to cooperate with the first tether 6 to fix the first airbag belt 1 to the waist of the user and assist the user to float in the water, the carrying component 3 includes a neck buoyancy component 31 and a fixing component 32, which are respectively used to increase the buoyancy at the neck of the user and to fix the neck buoyancy component 31 at the neck of the user, and the neck buoyancy component 31 is used to increase the buoyancy at the neck of the user and to fix the neck buoyancy component 31 at the neck of the user, and the neck buoyancy component 31 is used to increase the buoyancy at the neck of the user. It is arranged at the top end of the first airbag belt 1, and the fixing component 32 is arranged on the neck buoyancy component 31. The neck buoyancy component 31 includes two groups of arc-shaped airbags 312. The outer sides of the two groups of arc-shaped airbags 312 are fixedly connected with silicone hollow square tubes 311, and the two groups of arc-shaped airbags 312 are connected with the inside of the first airbag belt 1 through the silicone hollow square tubes 311. One group of silicone hollow square tubes 311 is located at the top end of the first airbag belt 1 near the interface, and the other group of silicone hollow square tubes 311 is located at the top end of the first airbag belt 1 near the middle position. One group of arc-shaped airbags 312 is fixedly connected with a breathing tube 313 on the outer side, and the arc-shaped airbag 312 is connected with the outside through the breathing tube 313. A first solenoid valve 314 is fixedly installed on the breathing tube 313. By controlling the first solenoid valve 314, the air in the arc-shaped airbag 312 can be transmitted through the breathing tube 313.

[0022] Reference Figure 3 to Figure 4The fixing component 32 includes a rotating shaft 322 and two groups of arc plates 321. The outer sides of the two groups of arc plates 321 are fixedly connected to the inner sides of the two groups of arc air bags 312 respectively. The rotating shaft 322 is located between the two groups of arc air bags 312. The two groups of arc plates 321 are both rotatably connected to the rotating shaft 322, and the ends of the two groups of arc plates 321 away from the rotating shaft 322 are both fixedly connected to the second tether 323. Before the lifesaving composite belt is inflated, the two groups of arc plates 321 are put on the user's neck, and then the arc plates 321 are knotted and fixed by the two groups of second tethers 323. At this time, the neck buoyancy component 31 is obliquely straddled on the upper body of the user, and then the first air bag belt 1 is wrapped around the user's waist, and the first tether 6 is knotted from By fixing the first airbag belt 1 on the user's waist, the life-saving composite belt can be worn. When encountering a situation with strong winds and waves, the user first keeps floating upright, then puts the upper end of the breathing tube 313 into the mouth, and then controls the first solenoid valve 314 to be continuously opened and closed through the control unit 8, thereby releasing a certain amount of air for the user to breathe. At the same time, the internal pressure of the first airbag belt 1 is monitored by the first pressure sensor 7, and the compressed air tank 2 of another group is controlled by the control unit 8 to inflate the first airbag belt 1 to ensure the buoyancy of the first airbag belt 1, which can provide the user with a period of breathing, thereby reducing the possibility of the user being hit by the waves and having difficulty breathing, thereby improving the user's survival rate when the wind and waves are strong.

[0023] Reference Figures 1 to 8 A back support assembly 4 is provided at the middle position of the outer side of the first airbag belt 1 to provide buoyancy for the back of the user. The back support assembly 4 includes a mounting box 41, which is fixedly mounted at the middle position of the outer side of the first airbag belt 1, and a second pressure sensor 47 and a fixing pipe 46 are installed on one side of the mounting box 41. The fixing pipe 46 is covered on the outer side of the second pressure sensor 47. The fixing pipe 46 reduces the possibility of the second pressure sensor 47 being squeezed and accidentally touched by external objects. When the user falls into an open water area far from the shore, the fixing pipe 46 and the second pressure sensor 47 will be submerged in water. At this time, the second pressure sensor The device 47 will detect that the pressure exceeds the preset value, and control the air in a group of compressed air tanks 2 to enter the first airbag belt 1 through the control unit 8, so that the first airbag belt 1 will expand. Since the first airbag belt 1 and the arc-shaped airbag 312 are connected through the silicone hollow square tube 311, the two groups of arc-shaped airbags 312 will expand. The two groups of arc-shaped airbags 312 can ensure that the user's head floats quickly after falling into the water. With the mutual cooperation of the two groups of arc-shaped airbags 312 located at the neck and the first airbag belt 1 located at the waist, the user can quickly float to the water surface. At this time, the user is floating on the water surface in an upright state and can swim.

[0024] Reference Figures 7 to 9An airbag winding component 44 is provided inside the installation box 41 for winding or releasing the airbag inside the installation box 41. The airbag winding component 44 includes a motor 441. The motor 441 is fixedly installed on the inner wall of one side of the installation box 41, and the output end of the motor 441 is fixedly connected to a rotating rod 442. The end of the rotating rod 442 away from the motor 441 is rotatably connected to the inner wall of the other side of the installation box 41, and a third airbag belt 443 is wound around the rotating rod 442. The end of the third airbag belt 443 away from the rotating rod 442 is fixedly connected to a conveying component for realizing mutual transmission of gas in the first airbag belt 1 and gas in the third airbag belt 443. The third airbag belt 443 is connected to the inside of the first airbag belt 1 through the conveying component. An extrusion belt is provided inside the installation box 41 The component is used to extrude the third airbag belt 443. The extrusion component includes two groups of extrusion rollers 45. Both ends of the two groups of extrusion rollers 45 are fixedly connected with a rotating shaft, and the two groups of extrusion rollers 45 are rotatably connected to the inside of the installation box 41 through the rotating shaft. The two groups of extrusion rollers 45 are located between the rotating rod 442 and the blocking bar 444. The end of the third airbag belt 443 away from the rotating rod 442 is located between the two groups of extrusion rollers 45. The conveying component includes a blocking bar 444 and a through groove. The through groove is opened at the top of the installation box 41. The bottom end of the blocking bar 444 is fixedly connected to the end of the third airbag belt 443 away from the rotating rod 442, and the blocking bar 444 is located in the through groove. The blocking bar 444 is connected to the inside of the third airbag belt 443, and the top of the blocking bar 444 is respectively fixedly connected to two groups of air inlet pipes 43 The first and second airbag belts 44 are connected to each other through the two air inlet pipes 43 and the two air outlet pipes 42, and the blocking strip 444 is connected to the inside of the first airbag belt 1 through the two air inlet pipes 43 and the two air outlet pipes 42. The first one-way valve 431 is installed on the two air inlet pipes 43, and the second solenoid valve 421 is installed on the two air outlet pipes 42. When the user finds it difficult to float in the water or feels physically exhausted, the control unit 8 controls the motor 441 to rotate the rotating rod 442, thereby loosening the third airbag belt 443. Since the first and third airbag belts 443 are connected through the air inlet pipe 43 and the blocking strip 444, the internal gas of the first airbag belt 1 can enter the inside of the third airbag belt 443. The first one-way valve 431 is used to block the internal gas of the third airbag belt 443 from flowing out, so that the air in the squeezing roller 45 The third airbag belt 443 at the top is inflated, and at this time, the two groups of squeezing rollers 45 squeeze the two sides of the third airbag belt 443, which can prevent the third airbag belt 443 wrapped around the outer surface of the rotating rod 442 from expanding. Since the third airbag belt 443 will continue to loosen, as the gas continues to enter the third airbag belt 443, the loose third airbag belt 443 can be pulled out from between the two groups of squeezing rollers 45 to the inside of the installation box 41. Then the user squeezes the first airbag belt 1 to squeeze the remaining air inside it into the third airbag belt 443. The inflated third airbag belt 443 is in a plate shape, and the air outlet pipe 42 and the air inlet pipe 43 can pull the blocking strip 444 after the third airbag belt 443 is inflated, so that the third airbag belt 443 is close to the user's back and supports the user's back through its own buoyancy.This allows the user's back to float.

[0025] Reference Figures 5 and 6 A leg buoyancy assembly 5 is arranged on the outside of the first airbag belt 1 to assist the user to float in the water and increase the buoyancy of the lower body of the user. The leg buoyancy assembly 5 includes two groups of first Velcro 51 and two groups of second airbag belts 53. The two groups of first Velcro 51 are symmetrically installed on the outside of the first airbag belt 1, and the two groups of first Velcro 51 are respectively located on both sides of the interface of the first airbag belt 1. The two groups of second airbag belts 53 are fixedly installed with second Velcro 52 at the middle position of one side close to the first Velcro 51, and the two groups of second airbag belts 53 are respectively bonded to the two groups of first Velcro 51 through the second Velcro 52. The two groups of second airbag belts 53 are fixedly connected with connecting pipes 56, and the two groups of second airbag belts 53 are connected to the inside of the first airbag belt 1 through the connecting pipes 56. A second one-way valve 57 is fixedly installed on the connecting pipe 56. A third Velcro 54 is fixedly installed at one side of the two groups of second airbag belts 53 near one end interface, and the two groups of second A fourth Velcro 55 that cooperates with the third Velcro 54 is fixedly installed at the interface near the other end of the other side of the airbag belt 53, and the fourth Velcro 55 and the third Velcro 54 are adhered to each other. When the first airbag belt 1 is inflated, the first airbag belt 1 and the second airbag belt 53 are connected through the connecting tube 56, and the second one-way valve 57 can block the internal gas of the second airbag belt 53 from flowing out, so that the two groups of second airbag belts 53 will inflate and increase the buoyancy. When the user is in an upright state and floats on the water, it can assist the user to swim better. When the user floats on the back, the second airbag belt 53 is pulled to separate the second Velcro 52 from the first Velcro 51, and then the second airbag belt 53 is covered and fixed to the user's calf position through the third Velcro 54 and the fourth Velcro 55. The two groups of second airbag belts 53 can increase the buoyancy of the user's lower body. At this time, the user can lie flat and float on the water, thereby slowly restoring the user's physical strength.

[0026] Reference Figures 8 to 10A buoyancy adjustment component 48 is provided on the side of the installation box 41 away from the first airbag belt 1, which is used to assist the user to float in the water and adjust the buoyancy balance on both sides of the back support component 4. The buoyancy adjustment component 48 includes a fifth Velcro 481 and two groups of mobile airbags 483. The fifth Velcro 481 is fixedly installed on the side of the installation box 41 away from the first airbag belt 1. Sixth Velcro 482 is fixedly installed on one side of the two groups of mobile airbags 483, and the two groups of mobile airbags 483 are adhered to the fifth Velcro 481 through the sixth Velcro 482. The bottom ends of the two groups of mobile airbags 483 are fixedly connected with connecting pipes 484, and the two groups of mobile airbags 483 are connected to the inside of the first airbag belt 1 through the connecting pipes 484. A third one-way valve 485 is fixedly installed. When the first airbag belt 1 is inflated, since the first airbag belt 1 and the mobile airbag 483 are connected through the connecting tube 484, and the third one-way valve 485 can block the outflow of gas inside the mobile airbag 483, the two groups of mobile airbags 483 will inflate, increasing the buoyancy. When the user is in an upright state and floats on the water surface, it can further assist the user to swim better. When the user is in a lying floating state, the position of the mobile airbag 483 can be adjusted by adjusting the position of the two groups of sixth Velcro 482, so that the buoyancy balance on both sides of the user of the third airbag belt 443 can be adjusted, which can make the user's floating more stable. Since the user needs to use more muscle strength to float upright, The user can maintain body balance, and does not need to hold the third airbag belt 443 when floating flat, and uses less muscle strength when floating flat, which is more labor-saving, and can effectively prolong the time for the user to wait for rescue in the water and increase the chance of survival. When the user wants to swim after recovering his physical strength or when there are large waves on the water, the two groups of second solenoid valves 421 are opened by the control unit 8, so that the air inside the third airbag belt 443 enters the first airbag belt 1, and then the third airbag belt 443 is wound around the outer surface of the rotating rod 442 by turning on the motor 441, and then the air inside the third airbag belt 443 can be squeezed out with less friction through the rolling and squeezing of the two groups of squeezing rollers 45, so that the gas can enter the first airbag belt 1 through the outlet pipe 42 The user then removes the second airbag belt 53 from the calf and fixes the second airbag belt 53 to the outside of the first airbag belt 1 again by bonding the first Velcro 51 and the second Velcro 52. At this time, the user can float upright under the buoyancy of the first airbag belt 1, which is convenient for the user to swim. The user can change the floating state according to his or her own needs, and the operation is simple. The gas flows between the first airbag belt 1 and the third airbag belt 443 to avoid mutual influence between the two floating modes, so that the two floating modes are better used. In addition, the buoyancy balance can be adjusted by the buoyancy adjustment component 48 to make the floating more stable and avoid flipping, which is more conducive to the survival of the user.

[0027] In the present invention, when in use, the two sets of arc plates 321 are put on the user's neck, and the arc plates 321 are knotted and fixed by two sets of second tethers 323. At this time, the neck buoyancy component 31 is diagonally across the user's upper body, and then the first airbag belt 1 is wrapped around the user's waist, and the first tether 6 is knotted to fix the first airbag belt 1 to the user's waist, so that the life-saving composite belt can be worn.

[0028] When the user falls into open waters far from the shore, the fixed tube 46 and the second pressure sensor 47 will be submerged in water. The fixed tube 46 is used to reduce the possibility of the second pressure sensor 47 being squeezed and accidentally touched by external objects. At this time, the second pressure sensor 47 will detect that the pressure exceeds the preset value, and the air in a group of compressed air tanks 2 is controlled by the control unit 8 to enter the first airbag belt 1, so that the first airbag belt 1 expands. Since the first airbag belt 1 and the arc-shaped airbag 312 are connected through the silicone hollow square tube 311, the first airbag belt 1 and the mobile airbag 483 are connected through the connecting tube 484, the first airbag belt 1 and the second airbag belt 53 are connected through the connecting tube 56, and the second one-way valve 57 and the third one-way valve 485 are respectively used to block the outflow of gas from the second airbag belt 53 and the mobile airbag 483, so that the two groups of mobile airbags 483, the two groups of second airbag belts 53 and the two groups of arc-shaped airbags 312 will all expand, so that the user can quickly float to the water surface. At this time, the user is floating on the water surface in an upright state and can swim.

[0029] When the user finds it difficult to float in the water or feels exhausted, the control unit 8 controls the motor 441 to start, so that the rotating rod 442 rotates, thereby loosening the third airbag belt 443. Since the first airbag belt 1 and the third airbag belt 443 are connected through the air inlet pipe 43 and the blocking strip 444, the internal gas of the first airbag belt 1 can enter the third airbag belt 443. The first one-way valve 431 is used to prevent the internal gas of the third airbag belt 443 from flowing out, so that the third airbag belt 443 located above the squeezing roller 45 can expand. The inner wall of the installation box 41 is rotatably connected, and the two groups of squeezing rollers 45 squeeze the two sides of the third airbag belt 443, which can prevent the third airbag belt 443 wound on the outer surface of the rotating rod 442 from expanding. Since the third airbag belt 443 will continue to loosen, as the gas continues to enter the third airbag belt 443, the loose third airbag belt 443 can be pulled out of the installation box 41 from between the two groups of squeezing rollers 45. Then the user squeezes the first airbag belt 1 to squeeze the remaining air inside it into the third airbag belt 443. The inflated third airbag belt 443 is in a plate shape, and the air outlet pipe 42 and The air inlet pipe 43 can pull the blocking strip 444 after the third airbag belt 443 is inflated, so that the third airbag belt 443 is close to the user's back and supports the user's back through its own buoyancy, thereby making the user's back float up. At the same time, the user can pull the second airbag belt 53 to separate the second Velcro 52 from the first Velcro 51, and then wrap the second airbag belt 53 with the third Velcro 54 and the fourth Velcro 55 to fix it on the user's calf. The two sets of second airbag belts 53 can increase the buoyancy of the user's lower body, and the user can lie flat and float on the water. By adjusting the positions of the two groups of sixth Velcro strips 482, the position of the mobile airbag 483 can be adjusted, thereby adjusting the buoyancy balance on both sides of the third airbag belt 443, which can make the user's floating more stable, thereby preventing the third airbag belt 443 from flipping over. When floating upright, the user needs to use more muscle strength to maintain body balance, while the user does not need to hold the third airbag belt 443 when floating lying flat, and the user uses less muscle strength when floating lying flat, which is more labor-saving, and can effectively prolong the time the user waits for rescue in the water and increase the chance of survival.

[0030] When the user wants to swim after recovering his strength or when the water is rough, the control unit 8 opens the two sets of second solenoid valves 421, allowing the air inside the third airbag belt 443 to enter the first airbag belt 1, and then the motor 441 drives the rotating rod 442 to rotate, so that the third airbag belt 443 is wound around the outer surface of the rotating rod 442, and the air inside the third airbag belt 443 is squeezed out with less friction through the rolling and squeezing of the two sets of squeezing rollers 45, so that the gas can enter the first airbag belt 1 through the air outlet pipe 42, so that the first airbag belt 1 can be inflated again, and then the user automatically expands the second airbag belt 53. The second airbag belt 53 is fixed to the outside of the first airbag belt 1 again by bonding the first Velcro 51 and the second Velcro 52. At this time, the user can float upright under the buoyancy of the first airbag belt 1, which is convenient for the user to swim. The user can change the floating state according to his or her own needs, and the flow of gas between the first airbag belt 1 and the third airbag belt 443 can avoid mutual influence between the two floating modes, so that the use effect of the two floating modes is better. In addition, the buoyancy balance can be adjusted by the buoyancy adjustment component 48, so that the floating is more stable and avoids flipping, which is more conducive to the survival of the user.

[0031] When encountering a situation with strong winds and waves, the user first keeps floating upright, then puts the upper end of the breathing tube 313 into the mouth, and then controls the first solenoid valve 314 to be continuously opened and closed through the control unit 8, thereby releasing a certain amount of air for the user to breathe. At the same time, the internal pressure of the first airbag belt 1 is monitored through the first pressure sensor 7, and the control unit 8 controls another group of compressed air tanks 2 to inflate the first airbag belt 1 to ensure the buoyancy of the first airbag belt 1, which can provide the user with a period of breathing, thereby reducing the possibility of the user being hit by the waves and having difficulty breathing, thereby improving the user's survival rate when the wind and waves are strong.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite life-saving belt for emergency survival, comprising a first airbag belt (1), two sets of compressed air tanks (2) being symmetrically mounted on the outer side of the first airbag belt (1), and first tethers (6) being fixedly connected to interfaces at both ends of the first airbag belt (1), It is characterized in that Also includes: A backpack component (3), the backpack component (3) comprising a neck buoyancy component (31) and a fixing component (32), the neck buoyancy component (31) being arranged at the top end of the first airbag belt (1), and the fixing component (32) being arranged on the neck buoyancy component (31), and being used to increase the buoyancy at the neck of a user and to fix the neck buoyancy component (31) at the neck of the user, respectively; A back support assembly (4), the back support assembly (4) comprising a mounting box (41), the mounting box (41) being fixedly mounted at a middle position outside the first airbag belt (1), and an airbag winding component (44) being arranged inside the mounting box (41), the airbag winding component (44) comprising a motor (441), the motor (441) being fixedly mounted on an inner side wall of one side of the mounting box (41), and an output end of the motor (441) being fixedly connected to a rotating rod (442), an end of the rotating rod (442) away from the motor (441) being rotatably connected to an inner side wall of another side of the mounting box (41), and a third airbag belt (443) being wound around the rotating rod (442), an end of the third airbag belt (443) away from the rotating rod (442) being fixedly connected to a conveying component, the third airbag belt (443) being connected to the inside of the first airbag belt (1) via the conveying component, and an extrusion component being arranged inside the mounting box (41) for extruding the third airbag belt (443); A leg buoyancy component (5) is arranged outside the first airbag belt (1) and is used to assist a user in floating in water and cooperate with the back support component (4) to increase the buoyancy of the user's lower body.

2. The emergency life-saving composite belt according to claim 1, It is characterized in that A first pressure sensor (7) is arranged inside the first airbag belt (1), and a control unit (8) is arranged outside the first airbag belt (1).

3. The emergency life-saving composite belt according to claim 1, It is characterized in that The neck buoyancy component (31) comprises two groups of arc-shaped airbags (312), the outer sides of the two groups of arc-shaped airbags (312) are fixedly connected with a silicone hollow square tube (311), and the two groups of arc-shaped airbags (312) are connected to the inside of the first airbag belt (1) through the silicone hollow square tube (311), one group of the silicone hollow square tube (311) is located at the top end of the first airbag belt (1) near the interface, and the other group of the silicone hollow square tube (311) is located at the top end of the first airbag belt (1) near the middle position.

4. The emergency life-saving composite belt according to claim 3, It is characterized in that A breathing tube (313) is fixedly connected to the outside of one group of the arc-shaped airbags (312), and the arc-shaped airbags (312) are connected to the outside through the breathing tube (313), and a first electromagnetic valve (314) is fixedly installed on the breathing tube (313).

5. The emergency life-saving composite belt according to claim 3, It is characterized in that The fixing component (32) comprises a rotating shaft (322) and two groups of arc-shaped plates (321); the outer sides of the two groups of arc-shaped plates (321) are respectively fixedly connected to the inner sides of the two groups of arc-shaped airbags (312); the rotating shaft (322) is located between the two groups of arc-shaped airbags (312); the two groups of arc-shaped plates (321) are both rotatably connected to the rotating shaft (322); and the ends of the two groups of arc-shaped plates (321) away from the rotating shaft (322) are both fixedly connected to the second tether (323).

6. The emergency life-saving composite belt according to claim 1, It is characterized in that A second pressure sensor (47) and a fixing tube (46) are installed on one side of the installation box (41), and the fixing tube (46) is covered on the outside of the second pressure sensor (47).

7. The emergency life-saving composite belt according to claim 1, It is characterized in that The squeezing component comprises two groups of squeezing rollers (45), both ends of the two groups of squeezing rollers (45) are fixedly connected to rotating shafts, and the two groups of squeezing rollers (45) are rotatably connected to the inside of the installation box (41) via the rotating shafts, the two groups of squeezing rollers (45) are located between the rotating rod (442) and the conveying component, and one end of the third airbag belt (443) away from the rotating rod (442) is located between the two groups of squeezing rollers (45).

8. The composite life-saving belt for emergency survival according to claim 7, It is characterized in that The conveying component comprises a blocking strip (444) and a through slot, wherein the through slot is formed at the top of the installation box (41), the bottom end of the blocking strip (444) is fixedly connected to an end of the third airbag belt (443) away from the rotating rod (442), and the blocking strip (444) is located in the through slot, the blocking strip (444) is connected to the inside of the third airbag belt (443), and the top end of the blocking strip (444) is respectively fixedly connected to two groups of air inlet pipes (43) and two groups of air outlet pipes (42), the blocking strip (444) is respectively connected to the inside of the first airbag belt (1) through the two groups of air inlet pipes (43) and the two groups of air outlet pipes (42), the two groups of the air inlet pipes (43) are both installed with a first one-way valve (431), and the two groups of the air outlet pipes (42) are both installed with a second solenoid valve (421).

9. The emergency life-saving composite belt according to claim 1, It is characterized in that The leg buoyancy assembly (5) comprises two groups of first Velcro (51) and two groups of second airbag belts (53), the two groups of the first Velcro (51) being symmetrically mounted on the outside of the first airbag belt (1), and the two groups of the first Velcro (51) being respectively located on both sides of the interface of the first airbag belt (1), the two groups of the second airbag belts (53) being fixedly mounted with second Velcro (52) at the middle position of one side close to the first Velcro (51), and the two groups of the second airbag belts (53) being respectively bonded to the two groups of the first Velcro (51) through the second Velcro (52), and the two groups of the second airbag belts A connecting tube (56) is fixedly connected to each of the two sets of second airbag belts (53), and the two sets of second airbag belts (53) are connected to the inside of the first airbag belt (1) through the connecting tube (56). A second one-way valve (57) is fixedly installed on the connecting tube (56). A third Velcro (54) is fixedly installed on one side of the two sets of second airbag belts (53) near one end interface, and a fourth Velcro (55) matching the third Velcro (54) is fixedly installed on the other side of the two sets of second airbag belts (53) near the other end interface, and the fourth Velcro (55) and the third Velcro (54) are bonded to each other.

10. The emergency survival composite belt according to claim 1, It is characterized in that The device further comprises a buoyancy adjustment component (48), the buoyancy adjustment component (48) comprising a fifth Velcro (481) and two groups of movable airbags (483), the fifth Velcro (481) being fixedly mounted on a side of the mounting box (41) away from the first airbag belt (1), a sixth Velcro (482) being fixedly mounted on one side of the two groups of movable airbags (483), and the two groups of movable airbags (483) being bonded to the fifth Velcro (481) via the sixth Velcro (482), a connecting tube (484) being fixedly connected to the bottom ends of the two groups of movable airbags (483), and the two groups of movable airbags (483) being connected to the interior of the first airbag belt (1) via the connecting tube (484), and a third one-way valve (485) being fixedly mounted on the connecting tube (484).

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