Lifesaving bracelet

Abstract

The invention provides a life-saving bracelet. The life-saving bracelet comprises an air bag box, the box cover is clamped with the air bag box; a first airbag accommodated in the airbag box; the gas tank box is divided into a tank containing cavity and a gas guide cavity; a gas discharging end of the gas tank extends into the gas guide cavity; the air inlet pipe is communicated with the first air bag and the air guide cavity; the ejector rod penetrates through the gas tank box; the push plate is arranged at one end of the ejector rod, and the push plate and the gas tank are oppositely distributed at an interval; the puncture needle is arranged on the pushing plate; a first elastic member; the pressing rod is arranged in the air guide cavity, the middle of the side face of the pressing rod is hinged to the inner wall of the air guide cavity, the inner end of the side face of the pressing rod abuts against the pushing plate, the outer end of the side face of the pressing rod is connected to a chain, and the chain movably penetrates through the wall of the air tank box and extends outwards; a second elastic member; the life-saving bracelet has the advantages that the structure is simple, the carrying is convenient, and the life-saving operation is easy.

Description

Technical Field

[0001] The invention belongs to the technical field of life-saving equipment, and in particular relates to a life-saving wristband. Background Art

[0002] Water sports such as swimming, rafting, and diving are very popular among people. However, these water sports are also very dangerous.

[0003] Traditional life jackets or life buoys are large in size, inconvenient to carry, and cannot be used quickly in certain situations (such as sudden falling into the water).

[0004] Therefore, it is necessary to design a life-saving bracelet that is convenient to carry and easy to operate to ensure personal safety. Summary of the invention

[0005] Aiming at part or all of the above technical problems existing in the prior art, the present invention provides a life-saving wristband which can be set on the hand of a person and is convenient to carry.

[0006] According to the present invention, there is provided a life-saving bracelet, comprising:

[0007] Airbag box,

[0008] A box cover for covering the opening of the airbag box, wherein the box cover is snap-connected with the airbag box,

[0009] a first airbag housed in the airbag box,

[0010] A gas tank box fixedly connected to the air bag box, wherein a first partition plate is arranged inside the gas tank box for dividing the gas tank box into a tank storage cavity and an air guide cavity,

[0011] The gas tank is arranged in the tank cavity, and the gas discharge end of the gas tank extends into the gas guide cavity.

[0012] an air inlet pipe for connecting the first airbag and the air guide cavity,

[0013] A push rod is sealed and slidably passed through the gas tank box, one end of the push rod is located in the gas guide cavity and the other end is located outside the gas tank box,

[0014] A push plate is arranged at one end of the push rod and is located in the air guide cavity, and the push plate is spaced and arranged opposite to the gas tank.

[0015] A piercing needle is arranged on the push plate, and the piercing needle extends toward the gas cylinder.

[0016] a first elastic member disposed between the push plate and the inner wall of the air guide cavity,

[0017] A pressing rod is arranged in the gas guide cavity, the middle of the side of the pressing rod is hinged to the inner wall of the gas guide cavity through a support rod, the inner end of the side abuts against the push plate, and the outer end of the side is connected to a chain, and the chain movably passes through the wall of the gas tank box and extends outward.

[0018] A second elastic member is disposed between the outer end of the side of the pressing rod and the inner wall of the air guide cavity,

[0019] A hand loop belt is arranged on the gas tank box.

[0020] In one embodiment, a pop-up plate is provided on the outer surface of the first airbag, and a push plate is provided on the pop-up plate. The push plate is slidably connected to the airbag box and the gas tank box, one end of the push plate extends into the air guide cavity and exceeds the push plate, and one end of the push plate is constructed in an arc shape.

[0021] In one embodiment, the pressing rod includes a plurality of long strip structures which are evenly distributed around the axial direction of the pushing rod. The chains are arranged one-to-one on the long strip structures of the pressing rod, and a connecting rod located outside the air guide cavity is fixed on the pushing rod, and each of the chains slides through the connecting rod.

[0022] In one embodiment, a finger ring is provided at the outer end of each chain located in the air guide cavity.

[0023] In one embodiment, a non-slip rubber sleeve is bonded to the inner surface of the finger ring, and a first finger-gripping cone is protrudingly provided on the inner surface of the non-slip rubber sleeve.

[0024] In one embodiment, a connecting frame is fixed to the bottom end of the gas tank box, an adjusting groove is provided on the connecting frame, and the wristband slides through the adjusting groove.

[0025] In one embodiment, the bracelet is made of woven nylon, and a second air bag is wrapped inside the bracelet, and the second air bag is connected to the air guide cavity.

[0026] In one embodiment, an anti-skid block is fixed to the inner surface of the wristband, and a second hand-irritating cone is provided on the anti-skid block.

[0027] In one embodiment, a hinge is provided between the box cover and one side of the airbag box, a snap-in strip is protrudingly provided on a side wall of the top end of the airbag box away from the hinge, and a snap-in groove that matches the snap-in strip is provided on the side of the box cover.

[0028] In one embodiment, a guide cylinder is provided on the first partition plate, and the injection pipe of the gas tank is threadedly connected to the guide cylinder.

[0029] Compared with the prior art, the advantages of the present invention are: the life-saving bracelet is set on the wrist of the person through the bracelet belt. If rescue is needed, the person can pull the chain to drive one side of the pressing rod to move, and release the restriction of the other side of the pressing rod on the push plate. Under the action of the first elastic member, the push plate drives the puncture needle to move toward the carbon dioxide gas tank until the puncture needle punctures the carbon dioxide gas tank. The carbon dioxide gas enters the air guide cavity. The carbon dioxide gas enters the first airbag through the air inlet pipe. As the carbon dioxide gas is filled, pressure is generated on the box cover, thereby unlocking the card connection between the box cover and the airbag box. The first airbag is exposed and generates buoyancy, thereby driving the person wearing the life-saving bracelet to float to the surface. It can be seen that the first airbag of the life-saving bracelet of the present application can be folded and stored in the airbag box, which can effectively reduce the volume of the life-saving bracelet itself and is easy to carry. In addition, the life-saving operation can be carried out by pulling the chain, which is simple to operate and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the life-saving bracelet of the present invention;

[0032] Figure 2 For the present invention Figure 1 A cross-sectional view of

[0033] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0034] Figure 4 For the present invention Figure 3 Enlarged view of point C;

[0035] Figure 5 For the present invention Figure 3 The enlarged view of point D;

[0036] Figure 6 For the present invention Figure 4 The enlarged view of point E;

[0037] Figure 7 For the present invention Figure 2 A magnified view of point B;

[0038] Figure 8 For the present invention Figure 7 The enlarged view of point F;

[0039] Fig. 9 For the present invention Figure 2 A cross-sectional view of

[0040] Fig.10 For the present invention Fig. 9 The enlarged view of G;

[0041] Fig.11 It is a schematic structural diagram of the finger ring of the present invention applied to a finger.

[0042] In the figure: 1, air bag box; 2, box cover; 3, spring-opening piece; 4, first air bag; 5, gas tank box; 6, third plug-in slot; 7, carbon dioxide gas tank; 8, connecting frame; 9, second air bag; 10, hand strap; 11, anti-skid bump; 12, snap buckle; 13, protective pad; 14, tank cavity; 15, first air guide pipe; 16, adjustment slot; 17, push rod; 18, chain; 19, air intake pipe; 20, first partition plate; 21, second partition plate; 22, first sealing pad; 23, jet pipe; 24, sealing film; 25, guide tube; 26, second air guide pipe; 27, second hand-irritating cone; 28, air guide cavity; 29, pressing rod; 30 , push plate; 31, limit plate; 32, second guide hole; 33, second elastic member; 34, second sealing pad; 35, second sealing sleeve; 36, first guide hole; 37, gasket; 38, first elastic member; 39, push plate; 40, piercing needle; 41, mounting hole; 42, first plug-in slot; 43, second plug-in slot; 44, first sealing sleeve; 45, rotating rod; 46, connecting plate; 47, rotating hole; 48, support rod; 49, third sealing sleeve; 50, third guide hole; 51, connecting rod; 52, finger ring; 53, anti-skid rubber sleeve; 54, first hand-irritating cone; 55, hinge; 56, snap-in strip; 57, snap-in slot.

[0043] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0044] In order to make the technical solutions and advantages of the present invention more clearly understood, the exemplary embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than an exhaustive list of all the embodiments. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0045] The embodiment of the present invention provides a life-saving bracelet. Figures 1 to 11The life-saving bracelet includes an airbag box 1 and a gas tank box 5. For example, the airbag box 1 and the gas tank box 5 are both box-shaped, for example, they can both be rectangular structures. The airbag box 1 is fixed to the top of the gas tank box 5. A box cover 2 is clamped on the top of the airbag box 1 to cover the opening of the airbag box 1. A first airbag 4 is rolled up inside the airbag box 1, and an air inlet pipe 19 is connected to the bottom end of the first airbag 4. A first partition plate 20 is arranged in the gas tank box 5. The first partition plate 20 divides the gas tank box 5 into a tank chamber 14 and a gas guide chamber 28. A gas tank is arranged in the tank chamber 14, for example, the gas tank can be a carbon dioxide gas tank 7. One end of the carbon dioxide gas tank 7 extends into the gas guide chamber 28. The air inlet pipe 19 is connected to the gas guide chamber 28, and the carbon dioxide gas released by the carbon dioxide gas tank 7 is supplied to the first airbag 4. In the gas guide chamber 28, a push plate 39 is arranged opposite to the gas tank 7. For example, the push plate 39 can be a circular plate structure, and is vertically arranged, perpendicular to the push plate 30, and a piercing needle 40 is fixed on the inner side of the push plate 39. The piercing needle 40 is a needle-shaped structure, and is aligned with the general middle level of the carbon dioxide gas cylinder 7. The push plate 39 drives the piercing needle 40 to move toward the carbon dioxide gas cylinder 7 until the piercing needle 40 pierces the carbon dioxide gas cylinder 7 to release carbon dioxide gas. A push rod 17 is fixed on the outer side of the push plate 39. For example, the push rod 17 is a round rod-shaped structure, and is arranged horizontally. The push rod 17 extends outside the gas guide cavity 28 after passing through the gas cylinder box 5 in a sealed sliding manner. A first elastic member is arranged between the push plate 39 and the inner wall of the gas guide cavity 28. For example, the first elastic member is a first spring 38. The first spring 38 is sleeved on the outer wall of the push rod 17, and its two ends are respectively abutted against the push plate 39 and the inner wall of the gas guide cavity 28. In the initial state, the first spring 38 is compressed for gathering capacity, and after the restriction of the push plate 39 is released, the first spring 38 can actuate the push plate 39 and then drive the puncture needle 40 to move toward the carbon dioxide gas cylinder 7 and puncture the carbon dioxide gas cylinder 7. A pressing rod 29 is arranged in the air guide cavity 28. The middle of the side of the pressing rod 29 is hinged to the inner wall of the air guide cavity 28 through the support rod 48. The inner end of the side of the pressing rod 29 abuts against the pushing plate 39 to limit the initial position of the pushing plate 39. The outer end of the side of the pressing rod 29 is connected to the chain 18. The chain 18 movably extends outward through the wall of the gas tank box 5. It can be seen that by pulling the chain 18, the pressing rod 29 can be actuated to move relative to the support rod 48, thereby releasing the restriction on the pushing plate 39. A second elastic member is arranged between the outer end of the side of the pressing rod 29 and the inner wall of the air guide cavity 28. For example, the second elastic member is a second spring 33. In the initial state, the second spring 33 is compressed and acts on the pressing rod 29. According to the lever principle, the side of the pressing rod 29 away from the action of the second spring 33 can abut against the push plate 39, thereby ensuring the initial position of the push plate 39. A wristband 10 is provided on the gas tank box 5, which is used to wrap the life-saving wristband around the wrist of the user.

[0046] Thus, during use, the life-saving bracelet is set on the wrist of the person through the bracelet belt 10. If rescue is needed, the person can pull the chain 18 to drive one side of the pressing rod 29 to move, and release the restriction of the other side of the pressing rod 29 on the push plate 39. Under the action of the first spring 38, the push plate 39 drives the piercing needle 40 to move toward the carbon dioxide gas cylinder 7. Until the piercing needle 40 punctures the carbon dioxide gas cylinder 7. The carbon dioxide gas enters the air guide cavity 28. The carbon dioxide gas enters the first airbag 4 through the air inlet pipe 19. As the carbon dioxide gas is filled, pressure is generated on the box cover 2, thereby unlocking the clamping of the box cover 2 and the airbag box 1. The first airbag 4 is exposed and generates buoyancy, thereby driving the person wearing the life-saving bracelet to float to the surface. It can be seen that the first airbag 4 of the life-saving bracelet of the present application can be folded and stored in the airbag box 1, which can effectively reduce the volume of the life-saving bracelet itself and is easy to carry. In addition, the life-saving operation can be carried out by only pulling the chain 18, which is simple to operate and safe.

[0047] A first guide hole 36 is formed at one end of the gas cylinder box 5. A second sealing sleeve 35 is bonded to the inner surface of the first guide hole 36. A second sealing gasket 34 is connected to the inner end of the second sealing sleeve 35 and the position located inside the first guide hole 36. The push rod 17 slides through the second sealing sleeve 35 and the second sealing gasket 34. It can be seen that at the push rod 17, the second sealing sleeve 35 and the second sealing gasket 34 seal the gas guide cavity 28 to prevent carbon dioxide gas leakage, thereby ensuring safety.

[0048] A hinge 55 is connected between one side of the top of the box cover 2 and one side of the airbag box 1. A clamping strip 56 is fixed protrudingly on the top of the side of the opening of the airbag box 1. At the same time, a clamping groove 57 is provided on the side of the box cover 2. During the closing operation, the clamping strip 56 and the clamping groove 57 are connected in a concave-convex manner to form a clamping connection, so that the box cover 2 is stably set on the airbag box 1. It can be seen that the box cover 2 can be connected to the airbag box 1 through the hinge 55 and the clamping connector to realize the opening and closing of the box cover.

[0049] The surface of the first airbag 4 is provided with a pop-up sheet 3. For example, the pop-up sheet 3 is made of a thin stainless steel sheet structure, which has good elasticity and bendability, and is convenient for rolling up and popping up the first airbag 4. The first airbag 4 fits with the pop-up sheet 3. In the initial state, the first airbag 4 and the pop-up sheet are rolled up together inside the airbag box 1. The pop-up sheet 3 helps to push the box cover 2 upward, which is used to ensure that the box cover 2 is opened effectively and quickly. After the box cover 2 is opened, the pop-up sheet 3 pops up and unfolds, thereby driving the first airbag 4 to quickly unfold in the water. The first airbag 4 filled with gas drives the swimmer to float upward, and can push the pop-up sheet 3 out of the airbag box 1, so that the pop-up sheet 3 is separated from the life-saving bracelet, avoiding the pop-up sheet 3 from injuring the swimmer's body and reducing the weight of the life-saving bracelet.

[0050] The bottom end of the ejection piece 3 is connected with a push-up piece 30. The push-up piece 30 is a rectangular thin sheet structure. The push-up piece 30 is arranged vertically. The bottom end of the airbag box 1 is provided with a first plug-in slot 42. The top end of the gas tank box 5 is provided with a second plug-in slot 43. The first plug-in slot 42 and the second plug-in slot 43 are aligned up and down and interpenetrate each other. The inner surfaces of the second plug-in slot 43 and the first plug-in slot 42 are bonded with a first sealing sleeve 44. The bottom end of the push-up piece 30 slides through the first sealing sleeve 44 and extends into the air guide cavity 28. It can be seen that by providing the first sealing sleeve 44, the air guide cavity 28 is sealed and leak-proofed at the push-up piece 30. The bottom end of the push-up piece 30 is a wedge-shaped or arc-shaped structure and extends to a position exceeding the push plate 39. That is, in the initial state, the push-up piece 30 extends beyond the push plate 39, so that the top end of the push plate 39 pushes the push-up piece 30 upward when the push plate 39 moves toward the carbon dioxide gas tank 7. Furthermore, the push-up sheet 30 drives the spring-opening sheet 3 to move, and the top of the spring-opening sheet 3 can push open the box cover 2, ensuring that the box cover 2 at the top of the life-saving bracelet is quickly opened, and the first airbag 4 is quickly deployed, which is conducive to the rapid filling of the first airbag 4 with gas, saving the inflation time of the life-saving bracelet and reducing the impact of swimmers choking. It can be seen that in this application, by setting structures such as the spring-opening sheet 3 and the push-up sheet 30, the first airbag 4 can be used to push open the box cover 2. On the one hand, it can effectively ensure that the first airbag 4 will be opened before inflation, thereby ensuring that inflation is carried out quickly; on the other hand, the opening effectiveness of the first airbag 4 is improved, and safety is improved.

[0051] The air inlet pipe 19 is a circular tubular structure and is vertically arranged, with its bottom end inserted into the top of the air guide cavity 28 to facilitate the gas to enter the first airbag 4 through the air inlet pipe 19 .

[0052] A gasket 37 is slidably sleeved on the surface of the push rod 17 and located inside the gas tank box 5. The gasket 37 is a circular structure. The gasket 37 is pressed against the side of the second sealing gasket 34, and the second sealing gasket 34 is pressed tightly by the first spring 38. A mounting hole 41 is opened in the middle of the gasket 37. The push rod 17 slides through the mounting hole 41, the second sealing gasket 34, the second sealing sleeve 35 and the first guide hole 36. More specifically, the first spring 38 is slidably sleeved on the surface of the push rod 17. The first spring 38 is located between the gasket 37 and the push plate 39. The first spring 38 is in a compressed state and is used to bounce and push the push plate 39 and the piercing needle 40.

[0053] For example, the pressing rod 29 can be a long strip structure. The pressing rod 29 can include multiple long strip structures, for example, four and cross-shaped distributed on the side of the push plate 39. A support rod 48 is provided in the middle of the side of the pressing rod 29. The inner end of the support rod 48 is fixed to the inner surface of the gas cylinder box 5. A connecting plate 46 is fixed in the middle of the side of the pressing rod 29 and on both sides of the support rod 48. A rotating hole 47 is provided at the outer end of the support rod 48. A rotating rod 45 is fixed between the two connecting plates 46. The rotating rod 45 rotates through the rotating hole 47. Therefore, the pressing rod 29 is rotatably hingedly connected to the support rod 48 through the connecting plate 46 and the rotating rod 45. The pressing rod 29 is arranged on the inner wall of the air guide cavity 28 through the support rod 48. The outer end of the side of the pressing rod 29 is connected to the chain 18. When the chain 18 is pulled, the chain 18 pulls the outer end of the pressing rod 29, so that the pressing rod 29 tilts upward with the top of the support rod 48 as a fulcrum, and then releases the pressed push plate 39. At this time, the first spring 38 in the compressed state is opened and bounces the push plate 39, so that the push plate 39 drives the piercing needle 40 to move quickly toward the jet tube 23. Until the needle 40 pierces the sealing film 24 of the carbon dioxide gas cylinder 7, the high-pressure gas in the carbon dioxide gas cylinder 7 sprays out the high-pressure gas from the puncture hole, and pushes the piercing needle 40 out of the jet tube 23, and sprays quickly.

[0054] The surface of the chain 18 is slidably sleeved with a second spring 33. A second guide hole 32 is opened at one end of the gas tank box 5, and the second spring 33 is located between the pressing rod 29 and the second guide hole 32. The second spring 33 is in a compressed state. Moreover, the sum of the elastic forces of the four second springs 33 is greater than the elastic force of the first spring 38, so that each second spring 33 bounces and lifts each pressing rod 29, and then the inner ends of the four pressing rods 29 are uniformly pressed on the edge of the push plate 39, so that the first spring 38 is in a compressed state. A third sealing sleeve 49 is bonded to the inner surface of the second guide hole 32. The third sealing sleeve 49 seals the air guide cavity 28 to prevent air leakage. The chain 18 slides through the third sealing sleeve 49 and the second guide hole 32. The chain 18 is made of magnesium-aluminum alloy material, which has high hardness, high strength, and light weight. The surface of the chain 18 and the position at the outer end of the second guide hole 32 are connected to the limit plate 31. The limit plate 31 is located at the outer end of the second guide hole 32.

[0055] A connecting rod 51 is fixed to the outer end of the push rod 17. The connecting rod 51 is distributed in a cross shape at the outer end of the push rod 17. A third guide hole 50 is opened at the outer end of the connecting rod 51. The chain 18 slides through the third guide hole 50. The four chains 18 are separately stored through the third guide hole 50 without interfering with each other. After the life-saving bracelet is worn, the four chains 18, the push rod 17 and the cross-shaped connecting rod 51 are located on the back of the hand, and the four chains 18 are in a relaxed state. When the fingers are clenched into a fist, the chains 18 will not be pulled to open the pressing rod 29.

[0056] The outer end of the chain 18 is connected to a finger ring 52. The finger ring 52 is a circular ring structure. The inner surface of the finger ring 52 is bonded with a non-slip rubber sleeve 53. The inner surface of the non-slip rubber sleeve 53 slides and protrudes with a first finger-gripping cone 54. The first finger-gripping cone 54 is a conical structure, and its inner end protrudes from the inner surface of the non-slip rubber sleeve 53. The first finger-gripping cone 54 is made of hard plastic and is bonded to the inner side of the finger ring 52.

[0057] After wearing, the swimmer slides four fingers through the anti-skid rubber sleeve 53 in the finger ring 52, and wears the life-saving bracelet on the wrist through the bracelet belt 10. At this time, the four chains 18, the push rod 17 and the cross-shaped connecting rod 51 are located on the back of the hand, and the four chains 18 are in a relaxed state. When the fingers are clenched into a fist, the chains 18 will not be pulled to open the pressing rod 29. When the wearer is drowning, he may be in a state of panic for a short time. During the process of grabbing with the palm and fingers, the fingers will touch and squeeze the first hand-piercing cone 54 on the inner surface of the anti-skid rubber sleeve 53. The first hand-piercing cone 54 produces a pricking feeling on the surface of the finger without piercing the skin, which can wake the panicked swimmer back to his senses and calm the swimmer down.

[0058] Furthermore, the carbon dioxide gas cylinder 7 can be opened by pulling the chain 18 or rotating the connecting rod 51 and the pushing rod 17, or the outer ends of the connecting rod 51 and the pushing rod 17 can be pushed into the gas tank box 5 to open the carbon dioxide gas cylinder 7. There are two ways to open the life-saving bracelet, which is convenient and saves effort. In addition, the finger is connected to the gas tank box 5 through the finger ring 52 and the chain 18, which improves the connection stability between the life-saving bracelet and the swimmer, and avoids the accidental disconnection of the bracelet belt 10, which makes the life-saving bracelet unsafe to use. The life-saving bracelet can be stably worn through the connection between the finger ring 52 and the chain 18 and the gas tank box 5.

[0059] A third plug-in slot 6 is provided at one end of the gas tank box 5. The carbon dioxide gas tank 7 passes through the third plug-in slot 6. The first partition plate 20 inside the gas tank box 5 is a rectangular plate structure and is vertically arranged to divide the interior of the gas tank box 5 into a tank chamber 14 and a gas guide chamber 28. The gas guide chamber 28 is separated by the first partition plate 20, and the space of the gas guide chamber 28 is smaller than the space of the tank chamber 14. A second partition plate 21 is fixed inside the gas guide chamber 28. The second partition plate 21 is a rectangular plate structure and is vertically arranged to separate the middle of the gas guide chamber 28, thereby reducing the space of the gas guide chamber 28, which is conducive to the gas inside the carbon dioxide gas tank 7 to fully fill the first airbag 4.

[0060] A first sealing pad 22 is bonded to the side of the first partition plate 20 to seal the air guide cavity 28 to prevent air leakage; a guide cylinder 25 is fixed in the middle of the first partition plate 20. The guide cylinder 25 is a cylindrical structure and is arranged horizontally, and its inner surface is a threaded structure. The deflation end of the carbon dioxide gas cylinder 7 includes a jet pipe 23 constructed in a tubular shape. The outer surface of the jet pipe 23 is a threaded structure, which is used to threadably connect with the guide cylinder 25 to keep the carbon dioxide gas cylinder 7 stably connected and easy to disassemble and install. After installation, the jet pipe 23 is threadedly connected to the guide cylinder 25, and the outer end of the jet pipe 23 is inserted into the air guide cavity 28 between the two second partition plates 21. The nozzle of the jet pipe 23 is connected to a sealing film 24, the material of the sealing film 24 is the same as that of the carbon dioxide gas cylinder 7, and the sealing film 24 is aligned with the piercing needle 40 and can be pierced by the piercing needle 40.

[0061] A connecting frame 8 is fixed to the bottom end of the gas cylinder box 5. The connecting frame 8 is a long rectangular frame structure, located on both sides of the bottom end of the gas cylinder box 5. A protective pad 13 is bonded to the bottom end of the connecting frame 8. The two connecting frames 8 are padded with the protective pad 13 and pressed on both sides of the top of the wrist to keep the life-saving bracelet stable and comfortable to wear. An adjustment groove 16 is provided inside the connecting frame 8. The adjustment groove 16 is a long strip structure, and the two ends of the adjustment groove 16 are slid through with a bracelet band 10. The bracelet band 10 adopts a nylon woven structure, and the life-saving bracelet can be worn on the wrist.

[0062] The inside of the wristband 10 is wrapped with a second airbag 9. The second airbag 9 is made of rubber and is a long strip structure. The side of the second airbag 9 is connected to the first air duct 15. The surface of the first air duct 15 is connected to the second air duct 26. The top of the second air duct 26 is inserted into the inside of the air guide cavity 28 and is located below the jet pipe 23. The second air duct 26 and the first air duct 15 both adopt a rubber tube structure, which can be bent, stretched and stretched. Thus, the gas inside the air guide cavity 28 can be introduced into the second airbag 9 through the first air duct 15 and the second air duct 26.

[0063] The inner surface of the wristband 10 is fixed with an anti-skid protrusion 11. The anti-skid protrusion 11 is made of rubber material and is bonded to the inner side of the wristband 10. A second hand-irritating cone 27 is fixed in the middle of the outer side of the anti-skid protrusion 11. The second hand-irritating cone 27 is a conical structure, made of hard plastic material, and is bonded to the outer end of the anti-skid protrusion 11. The two ends of the wristband 10 are connected with snap buckles 12, which buckle the wristband 10 to the wrist when worn.

[0064] When the person wearing the life-saving bracelet needs to activate the life-saving bracelet, after the sealing film 24 at the mouth of the jet tube 23 is punctured by the puncture needle 40, high-pressure gas is ejected from the puncture hole to the air guide cavity 28, and most of the gas enters the first air bag 4, and a small part of the gas enters the second air bag 9 through the first air guide tube 15 and the second air guide tube 26. The first air bag 4 drives the swimmer to float upward through the wristband 10. During the upward floating process, the wrist is tightened by the wristband 10, and the wristband 10 will become larger due to the pulling, and the contact between the wristband 10 and the wrist skin is relatively slippery due to the influence of water. The second airbag 9 is filled with gas to expand the wristband 10, so that the inner surface of the wristband 10 can be closely attached to the surface of the wrist, and the anti-slip bump 11 and the second hand cone 27 are used to improve the connection stability between the wristband 10 and the wrist to prevent the wristband 10 from falling off. At the same time, the second hand-irritating cone 27 abuts against the wrist surface without piercing the skin, so that the swimmer feels the irritation and is constantly alert, which is beneficial to self-rescue from drowning.

[0065] The small life-saving bracelet has a carbon dioxide gas cylinder 7 inserted into the tank cavity 14 of the gas cylinder box 5, and is connected firmly and stably through the first partition plate 20 and the guide tube 25. The jet pipe 23 at the inner end of the gas cylinder box 5 is inserted into the gas guide cavity 28. Opposite the jet pipe 23, the piercing needle 40 is arranged inside the gas guide cavity 28 through the push plate 39 and the push rod 17. The inner end surface of the push rod 17 is sleeved with the first spring 38 in a compressed state. At the same time, four pressing rods 29 are arranged against the outer edge of the push plate 39. The middle of the pressing rod 29 is rotatably connected to the support rod 48 through the connecting plate 46 and the rotating rod 45. The outer end of the pressing rod 29 is connected to the chain 18. The second spring 33 is sleeved at the inner end of the chain 18 to reset the pressing rod 29. The chain 18 passes through the surface of the connecting rod 51 fixed at the outer end of the push rod 17, and the four chains 18 are distributed in a rhombus through the third guide hole 50, without interfering with each other. The outer end of the chain 18 is connected to the finger ring 52 , and an anti-skid rubber sleeve 53 and a first finger-gripping cone 54 are provided on the inner surface of the finger ring 52 .

[0066] Before entering the water, the wearer slides four fingers through the anti-skid rubber sleeve 53 in the finger ring 52, and wears the life-saving bracelet on the wrist through the bracelet belt 10. At this time, the four chains 18, the jacking rod 17 and the cross-shaped connecting rod 51 are located on the back of the hand, and the four chains 18 are in a relaxed state. When the fingers are clenched into a fist, the chains 18 will not be pulled to open the pressing rod 29. When the wearer is drowning, he will be in a state of panic for a short time. During the process of grabbing with the palm and fingers, the fingers will touch and squeeze the first hand-piercing cone 54 on the inner surface of the anti-skid rubber sleeve 53. The first hand-piercing cone 54 produces a pricking feeling on the surface of the finger without piercing the skin, which can wake the panicked swimmer back to his senses and calm the swimmer down.

[0067] Afterwards, the hand not wearing the life-saving bracelet can pull the chain 18, or rotate the connecting rod 51 and the push rod 17, which will cause the chain 18 to be pulled, and the chain 18 pulls the outer end of the pressing rod 29, so that the pressing rod 29 is tilted upward with the top of the support rod 48 as a fulcrum, and then the pressed push plate 39 is released. At this time, the first spring 38 in the compressed state is ejected, and the push plate 39 is bounced, so that the push plate 39 drives the piercing needle 40 to move quickly toward the jet tube 23, until the piercing needle 40 pierces the sealing film 24, and the high-pressure gas in the carbon dioxide gas cylinder 7 sprays out the high-pressure gas from the piercing hole, and pushes the piercing needle 40 out of the jet tube 23 for rapid jetting.

[0068] Moreover, the outer ends of the connecting rod 51 and the pushing rod 17 can be pushed toward the inside of the gas cylinder box 5 by the hand that is not wearing the life-saving bracelet, so that the pushing plate 39 pushes the pressing rod 29 away, and cooperates with the outward elastic force of the first spring 38 in the compressed state, so that the pushing plate 39 and the piercing needle 40 are quickly moved toward the injection tube 23, and the piercing needle 40 forcefully pierces the sealing film 24, and the high-pressure gas in the carbon dioxide gas cylinder 7 is ejected outwardly from the piercing hole, and the piercing needle 40 is pushed out of the injection tube 23 to perform rapid injection.

[0069] In this way, the drowning wearer can quickly regain consciousness and calm down, and the carbon dioxide gas cylinder 7 can be opened by pulling the chain 18 or rotating the connecting rod 51 and the push rod 17, or the outer ends of the connecting rod 51 and the push rod 17 can be pushed into the gas tank box 5 to open the carbon dioxide gas cylinder 7. There are two ways to open the life-saving bracelet, which is convenient and saves effort. In addition, the finger is connected to the gas tank box 5 through the finger ring 52 and the chain 18, which improves the connection stability between the life-saving bracelet and the swimmer, and avoids the bracelet belt 10 from accidentally disconnecting, which makes the life-saving bracelet unsafe to use. The life-saving bracelet can be stably worn through the connection between the finger ring 52 and the chain 18 and the gas tank box 5.

[0070] The airbag box 1 is fixed on the top of the gas tank box 5, and the box cover 2 on the top thereof is connected to the airbag box 1 in an openable and closable manner through a hinge 55 and a snap-on strip 56. Inside the airbag box 1, the first airbag 4 and the pop-up sheet 3 are placed in contact and rolled up. The air inlet pipe 19 at the bottom end of the first airbag 4 is inserted into the top of the air guide cavity 28 inside the gas tank box 5. The push plate 30 fixed at the bottom end of the pop-up sheet 3 is inserted into the middle of the air guide cavity 28. When a swimmer is drowning, the push plate 39 drives the piercing needle 40 to move toward the jet tube 23, and the top end of the push plate 39 pushes the arc-shaped bottom end of the push plate 30 upward, and the push plate 30 pushes the pop-up sheet 3 upward, and then the box cover 2 is pushed open through the top end of the pop-up sheet 3.

[0071] In this way, after the box cover 2 is opened, the pop-up sheet 3 pops up and unfolds, thereby driving the first airbag 4 to quickly unfold in the water. At the same time, the piercing needle 40 pierces the sealing film 24 at the mouth of the jet tube 23, and the high-pressure gas inside the carbon dioxide gas tank 7 is quickly ejected, and quickly fills the first airbag 4 through the air guide cavity 28 and the air inlet pipe 19. The first airbag 4 filled with gas drives the swimmer to float upward, and can push the pop-up sheet 3 out of the airbag box 1, so that the pop-up sheet 3 is separated from the life-saving bracelet, avoiding the pop-up sheet 3 from hurting the swimmer's body, and reducing the weight of the life-saving bracelet. In this way, the box cover 2 at the top of the life-saving bracelet can be quickly opened, and the first airbag 4 can be quickly unfolded, which is conducive to the rapid filling of the first airbag 4 with gas, saving the inflation time of the life-saving bracelet, and reducing the impact of the swimmer choking on water.

[0072] The connection frame 8 is fixed at the bottom end of the gas tank box 5. The wristband 10 passes through the two ends of the adjustment slot 16 inside the connection frame 8 and is worn on the wrist through the snap buckle 12. A second hand-gripping cone 27 is arranged on the inner side of the wristband 10 through the anti-skid protrusion 11, and the anti-skid protrusion 11 and the second hand-gripping cone 27 are in contact with the skin at the wrist, and a second air bag 9 is arranged inside the wristband 10, and the second air bag 9 is connected to the air guide cavity 28 through the second air guide tube 26 and the first air guide tube 15.

[0073] Therefore, the swimmer slides four fingers through the non-slip rubber sleeve 53 in the finger ring 52. The life-saving bracelet is worn on the wrist through the hand band 10. At the same time, the non-slip protrusion 11 drives the second hand cone 27 to press on the surface of the wrist skin. When the swimmer drowns, after the sealing film 24 at the mouth of the jet tube 23 is punctured by the piercing needle 40, the high-pressure gas is ejected from the puncture port to the air guide cavity 28. Most of the ejected gas enters the first air bag 4, and a small part of the gas enters the second air bag 9 through the first air guide tube 15 and the second air guide tube 26. The first air bag 4 drives the swimmer to float upward through the hand band 10. During the upward floatation, the wrist is tightened by the hand band 10, and the hand band 10 is pulled and becomes larger, and the contact between the hand band 10 and the wrist skin is relatively slippery due to the influence of water. Therefore, during the upward floating process of the swimmer being pulled by the hand band 10, the second air bag 9 expands the hand band 10 due to being filled with gas, so that the inner surface of the hand band 10 can be closely attached to the wrist surface. The anti-slip bump 11 and the second hand-gripping cone 27 improve the connection stability between the wristband 10 and the wrist, and prevent the wristband 10 from slipping off. At the same time, the second hand-gripping cone 27 abuts against the surface of the wrist without piercing the skin, so that the swimmer feels the hand-gripping feeling and is always alert, which is conducive to the self-rescue of the drowning swimmer.

[0074] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and / or modifications that fall within the scope of the present invention, and changes and / or modifications made according to the embodiments of the present invention should be included within the scope of protection of the present invention.

Claims

1. A life-saving bracelet, characterized in that: include: Airbag box, A box cover for covering the opening of the airbag box, wherein the box cover is snap-connected with the airbag box, a first airbag housed in the airbag box, A gas tank box fixedly connected to the air bag box, wherein a first partition plate is arranged in the gas tank box for dividing the gas tank box into a tank storage chamber and an air guide chamber, The gas tank is arranged in the tank cavity, and the gas discharge end of the gas tank extends into the gas guide cavity. an air inlet pipe for connecting the first airbag and the air guide cavity, A push rod is sealed and slidably passed through the gas tank box, one end of the push rod is located in the gas guide cavity and the other end is located outside the gas tank box, A push plate is arranged at one end of the push rod and is located in the air guide cavity, and the push plate is spaced and arranged opposite to the gas tank. A piercing needle is arranged on the push plate, and the piercing needle extends toward the gas cylinder. a first elastic member disposed between the push plate and the inner wall of the air guide cavity, A pressing rod is arranged in the gas guide cavity, the middle of the side of the pressing rod is hinged to the inner wall of the gas guide cavity through a support rod, the inner end of the side abuts against the push plate, and the outer end of the side is connected to a chain, and the chain movably passes through the wall of the gas tank box and extends outward. A second elastic member is disposed between the outer end of the side of the pressing rod and the inner wall of the air guide cavity, A hand loop belt is arranged on the gas tank box.

2. The life-saving bracelet according to claim 1, characterized in that: A pop-up sheet is arranged on the outer surface of the first airbag, and a push-up sheet is arranged on the pop-up sheet. The push-up sheet is slidably connected with the airbag box and the gas tank box, one end of the push-up sheet extends into the air guide cavity and exceeds the push plate, and one end of the push-up sheet is constructed in an arc shape.

3. The life-saving bracelet according to claim 1 or 2, characterized in that: The pressing rod comprises a plurality of chains uniformly distributed around the axial direction of the pushing rod, the chains are arranged on the pressing rod in a one-to-one correspondence, and a connecting rod located outside the air guide cavity is fixed on the pushing rod, and each of the chains slides through the connecting rod.

4. The life-saving bracelet according to claim 3, characterized in that: A finger ring is arranged at the outer end of each chain located at the air guide cavity.

5. The life-saving bracelet according to claim 4, characterized in that: A non-slip rubber sleeve is bonded to the inner surface of the finger ring, and a first hand-gripping cone is protrudingly arranged on the inner surface of the non-slip rubber sleeve.

6. The life-saving bracelet according to any one of claims 1 to 5, characterized in that: A connecting frame is fixed at the bottom end of the gas cylinder box, an adjusting groove is arranged on the connecting frame, and the wristband slides through the adjusting groove.

7. The life-saving bracelet according to claim 6, characterized in that: The wristband is made of woven nylon, and a second air bag is wrapped inside the wristband, and the second air bag is communicated with the air guide cavity.

8. The life-saving bracelet according to claim 6, characterized in that: An anti-skid bulge is fixed on the inner surface of the wristband, and a second hand-irritating cone is arranged on the anti-skid bulge.

9. The life-saving bracelet according to any one of claims 1 to 8, characterized in that: A hinge is arranged between the box cover and one side of the airbag box, a clamping strip is protrudingly arranged on a side wall of the top end of the airbag box away from the hinge, and a clamping groove which is concave-convexly matched with the clamping strip is arranged on the side of the box cover.

10. The life-saving bracelet according to any one of claims 1 to 9, characterized in that: A guide cylinder is arranged on the first partition plate, and the injection pipe of the gas tank is threadedly connected to the guide cylinder.

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