TPU (thermoplastic polyurethane) film airbag life jacket

Abstract

The utility model discloses a TPU film air bag life jacket, and belongs to the field of water life-saving equipment. The life jacket body comprises a head and neck expansion part, a left expansion part communicated with the left side of the head and neck expansion part and a right expansion part communicated with the right side of the head and neck expansion part, and is characterized in that the life jacket body is independently wrapped with an air bag in a full-circumference sewing and edge covering mode, an inflation device is arranged on the left expansion part, and an air blowing pipe is arranged on the right expansion part. The side, close to the right expansion part, of the left expansion part is folded leftwards to form a left expansion part folded edge, the left side edge of the left expansion part is detachably connected with the left side edge of the left expansion part folded edge, and the side, close to the left expansion part, of the right expansion part is folded rightwards to form a right expansion part folded edge. The right side edge of the right expansion part is detachably connected with the right side edge of the right expansion part folding edge, and the air blowing pipe is wrapped between the right expansion part folding edge and the right expansion part folding edge. The life jacket has the advantages that the surface area of the life jacket body in a non-expansion state is reduced, the expansion is avoided, and the appearance and the use portability of the life jacket are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of water rescue equipment, specifically relating to a TPU film airbag life jacket. Background Technology

[0002] Life jackets are essential lifesaving tools for water activities. With the development of technology, life jackets have undergone continuous iteration and innovation, and have gradually evolved from the original padded life jackets to lighter self-inflating life jackets. Among them, TPU film (also known as thermoplastic polyurethane elastic film) is an essential composite inner liner material for self-inflating life jackets. As is well known, padded life jackets are bulky and unsightly, often leading people to knowingly choose not to wear them despite the risks. Self-inflating life jackets, while lighter and easier to wear in their uninflated state, also suffer from poor appearance. This is primarily due to two reasons: First, the inflation device and tubes are directly exposed on the surface of the airbag. Second, due to manufacturing limitations, the airbag is typically made of an inner liner with a composite protective layer to ensure airtightness, elasticity, and durability. This protective layer usually serves as the outer shell of the life jacket, offering little choice in fabric, color, or texture beyond printing markings. Third, airbags in their uninflated state are generally either unfolded or rolled up. An unfolded airbag, with its large surface area, further reduces the life jacket's appearance, while a rolled-up airbag appears very bloated and requires time-consuming and laborious re-rolling during recycling.

[0003] In view of the above, it is necessary to design a TPU film airbag life jacket that is simple in structure, low in cost, and aesthetically pleasing, capable of reducing the surface area of ​​the life jacket in a non-inflated state without appearing bulging, and also capable of concealing accessories. To this end, the applicant has made beneficial designs, and the technical solution described below arose in this context. Utility Model Content

[0004] The purpose of this invention is to provide a TPU film airbag life jacket, which helps to improve the matching structure of the life jacket body and the airbag so that the airbag can fold along with the life jacket body to reduce the surface area of ​​the life jacket body in the non-inflated state and prevent it from bulging. At the same time, the folding can cover the accessories on the life jacket, which is beneficial to improving the appearance and portability of the life jacket.

[0005] The purpose of this utility model is achieved as follows: a TPU film airbag life jacket includes a life jacket body, which includes a head and neck expansion section, a left expansion section communicating with the left side of the head and neck expansion section, and a right expansion section communicating with the right side of the head and neck expansion section. The life jacket body is characterized by independently wrapping an airbag by a full-circumference sewn edge. An inflation device communicating with the airbag is provided on the left expansion section, and an air blowing tube communicating with the airbag is provided on the right expansion section. The left expansion section is folded to the left near the right expansion section to form a left expansion section folded edge, and the left edge of the left expansion section and the left edge of the left expansion section folded edge are detachably connected. The right expansion section is folded to the right near the left expansion section to form a right expansion section folded edge, and the right edge of the right expansion section and the right edge of the right expansion section folded edge are detachably connected. The air blowing tube is wrapped between the right expansion section and the right expansion section folded edge.

[0006] In a specific embodiment of this utility model, the left expansion portion and the left expansion portion folded together form a long strip structure, and the right expansion portion and the right expansion portion folded together also form a long strip structure.

[0007] In another specific embodiment of this utility model, the inflation device is disposed on the side of the left expansion part with the folded edge facing forward. A cover plate is sewn along the edge of the left expansion part and the folded edge of the left expansion part. The cover plate is folded to the left and covers the front of the folded edge of the left expansion part to cover the inflation device. A transparent rubber sheet is disposed on the cover plate corresponding to the position of the inflation device. A cover plate hook and loop fastener is disposed on the edge of the cover plate near the folded edge of the left expansion part. A cover plate matching hook and loop fastener is disposed on the edge of the left expansion part corresponding to the hook and loop fastener of the cover plate.

[0008] In another specific embodiment of this utility model, the head and neck expansion portion, the left expansion portion, and the right expansion portion form a letter "U" shaped structure.

[0009] In another specific embodiment of this utility model, the airbag is made of a single layer of thermoplastic polyurethane elastic film, and the thickness of the single layer of thermoplastic polyurethane elastic film is 0.2mm to 0.25mm.

[0010] In another specific embodiment of this utility model, the airbag includes a head and neck bladder located within the head and neck expansion portion, a left expansion airbag communicating with the head and neck bladder and extending into the left expansion portion, and a right expansion airbag communicating with the head and neck bladder and extending into the right expansion portion. The left expansion airbag is laid flat within the left expansion portion and the left expansion portion folded edge and folded in half as the left expansion portion folds in half. The right expansion airbag is laid flat within the right expansion portion and the right expansion portion folded edge and folded in half as the right expansion portion folds in half. An inflation port connected to an inflation device is formed on the left expansion airbag, and the blowing tube is formed on the right expansion airbag.

[0011] In a further specific embodiment of this utility model, a left expansion portion hook and loop fastener is provided on the front left side edge of the left expansion portion, and a left expansion portion mating hook and loop fastener is provided on the side edge opposite to the left expansion portion hook and loop fastener of the left expansion portion. A right expansion portion hook and loop fastener is provided on the front right side edge of the right expansion portion, and a right expansion portion mating hook and loop fastener is provided on the side edge opposite to the right expansion portion hook and loop fastener of the right expansion portion.

[0012] In a further specific embodiment of this utility model, the periphery of the life jacket body is treated by hemming and sewing.

[0013] In another specific embodiment of this utility model, a waist belt is provided on the life jacket body, and a waist belt separation buckle is formed on the waist belt. The waist belt is fixedly connected to the left expansion part and the right expansion part on both sides of the waist belt separation buckle, respectively. A waist belt length adjustment buckle is formed on the waist belt. A back strap is connected to the middle rear part of the waist belt through a belt body connecting part. The belt body connecting part is slidably disposed on the waist belt. One end of the back strap is fixed to the belt body connecting part, and the other end is fixed to the rear side of the head and neck expansion part. A back strap length adjustment buckle is formed on the back strap.

[0014] In yet another specific embodiment of this utility model, a whistle is connected to one side of the air tube via a rope.

[0015] The present invention, by adopting the above-mentioned structure, has the following beneficial effects: Since the airbag is independently wrapped in the life jacket body by full-circumference sewing and binding, the airbag forms a long strip structure on both sides after being connected with the life jacket body in half. Therefore, it can effectively reduce the surface area of ​​the life jacket body in the non-inflated state without appearing bulging. At the same time, the folding can effectively cover the inflation device, blowing pipe and whistle on the life jacket, which greatly improves the appearance of the life jacket and its portability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a partially unfolded front view of an embodiment of the present invention;

[0017] Figure 2 This is another structural schematic diagram of a partially unfolded front view of an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the front structure of an airbag according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of an embodiment of the present invention in its unexpanded state;

[0020] Figure 5 This is a schematic diagram of the structure of an embodiment of the present invention in an expanded state.

[0021] In the diagram: 1. Life jacket body; 11. Head and neck expansion section; 12. Left expansion section; 121. Left expansion section folded edge; 1211. Left expansion section with Velcro; 1212. Exterior flap with Velcro; 122. Exterior flap; 1221. Exterior flap with Velcro; 1222. Transparent rubber sheet; 123. Left expansion section with Velcro; 13. Right expansion section; 131. Right expansion section folded edge; 1311. Right expansion section with Velcro; 1311132. Right expansion section with Velcro; 2. Airbag; 21. Head and neck bladder body; 22. Left expansion airbag; 221. Inflation port; 23. Right expansion airbag; 3. Inflation device; 4. Inflator tube; 41. Whistle; 5. Waist belt; 51. Waist belt length adjustment buckle; 52. Waist belt separation buckle; 6. Shoulder straps; 61. Strap connection; 62. Shoulder strap length adjustment buckle. Detailed Implementation

[0022] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.

[0023] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on... Figure 1 The positions shown are for reference only and should not be construed as a particular limitation on the technical solutions provided by this utility model.

[0024] Please see Figure 1 and combined Figure 2 This utility model relates to a TPU film airbag life jacket, including a life jacket body 1. The life jacket body 1 includes a head and neck expansion portion 11, a left expansion portion 12 communicating with the left side of the head and neck expansion portion 11, and a right expansion portion 13 communicating with the right side of the head and neck expansion portion 11.

[0025] The technical innovation of this utility model lies in the following: the life jacket body 1 is independently wrapped with an airbag 2 by a full-circumference sewn edge; an inflation device 3 communicating with the airbag 2 is provided on the left expansion portion 12; an air blowing tube 4 communicating with the airbag 2 is provided on the right expansion portion 13; a left expansion edge 121 is formed by folding the left expansion portion 12 to the left near the right expansion portion 13, and the left edge of the left expansion portion 12 and the left edge of the left expansion edge 121 are detachably connected; a right expansion edge 131 is formed by folding the right expansion portion 13 to the right near the left expansion portion 12, and the right edge of the right expansion portion 13 and the right edge of the right expansion edge 131 are detachably connected; the air blowing tube 4 is wrapped between the right expansion portion 13 and the right expansion edge 131. Of course, the installation positions of the inflation device 3 and the air blowing tube 4 are not limited in any way; they can be interchanged or located on the same side, etc.

[0026] Furthermore, the aforementioned inflation device 3 is disposed on the front side of the left expansion portion folded edge 121. A cover plate 122 is sewn onto the edge of the left expansion portion 12 and the left expansion portion folded edge 121. The cover plate 122 is folded to the left and covers the front of the left expansion portion folded edge 121 to cover the inflation device 3. A transparent rubber sheet 1222 is disposed on the cover plate 122 corresponding to the position of the inflation device 3. A cover plate hook and loop fastener 1221 is disposed on the edge of the cover plate 122 near the left expansion portion folded edge 121. A cover plate matching hook and loop fastener 1212 is disposed on the edge of the left expansion portion folded edge 121 corresponding to the cover plate hook and loop fastener 1221. The aforementioned transparent rubber sheet 1222 is used to observe the state of the inflation device 3.

[0027] The aforementioned head and neck expansion portion 11, left expansion portion 12, and right expansion portion 13 form a letter "U" shaped structure.

[0028] The aforementioned airbag 2 is made of a single layer of thermoplastic polyurethane elastic film, and the thickness of the aforementioned single layer of thermoplastic polyurethane elastic film is 0.2mm to 0.25mm. In this embodiment, the thickness of the aforementioned single layer of thermoplastic polyurethane elastic film is preferably 0.22mm.

[0029] The periphery of the aforementioned life jacket body 1 is treated with folded seams.

[0030] A whistle 41 is connected to one side of the aforementioned air pipe 4 via a rope.

[0031] In this embodiment, a waist belt 5 is provided on the life jacket body 1. A waist belt separation buckle 52 is formed on the waist belt 5. The waist belt 5 is fixedly connected to the left expansion part 12 and the right expansion part 13 on both sides of the waist belt separation buckle 52, respectively. A waist belt length adjustment buckle 51 is formed on the waist belt 5. A back strap 6 is connected to the middle rear of the waist belt 5 through a belt body connecting part 61. The belt body connecting part 61 is slidably disposed on the waist belt 5. One end of the back strap 6 is fixed to the belt body connecting part 61, and the other end is fixed to the rear side of the head and neck expansion part 11. A back strap length adjustment buckle 62 is formed on the back strap 6.

[0032] Please see Figure 4 The aforementioned left expansion portion 12 and the left expansion portion folded edge 121 are folded together to form a long strip structure, and the aforementioned right expansion portion 13 and the right expansion portion folded edge 131 are also folded together to form a long strip structure.

[0033] Please see Figure 1 and Figure 2 A left expansion portion hook and loop fastener 123 is provided on the front left side edge of the aforementioned left expansion portion 12, and a left expansion portion mating hook and loop fastener 1211 is provided on the side edge opposite to the left expansion portion hook and loop fastener 123. A right expansion portion hook and loop fastener 132 is provided on the front right side edge of the aforementioned right expansion portion 13, and a right expansion portion mating hook and loop fastener 1311 is provided on the side edge opposite to the right expansion portion hook and loop fastener 132.

[0034] Please see Figure 3 and combined Figure 1 The aforementioned airbag 2 includes a head and neck bladder 21 located within the head and neck expansion portion 11, a left expansion airbag 22 communicating with the head and neck bladder 21 and extending into the left expansion portion 12, and a right expansion airbag 23 communicating with the head and neck bladder 21 and extending into the right expansion portion 13. The aforementioned left expansion airbag 22 lies flat within the left expansion portion 12 and the left expansion portion folded edge 121 and folds in half as the left expansion portion folded edge 121 is folded in half. The aforementioned right expansion airbag 23 lies flat within the right expansion portion 13 and the right expansion portion folded edge 131 and folds in half as the right expansion portion folded edge 131 is folded in half. The aforementioned left expansion airbag 22 has an inflation port 221 connected to the inflation device 3, and the aforementioned air blowing tube 4 is formed on the right expansion airbag 23.

[0035] Please continue reading. Figures 1-5 When in Figure 4In the non-inflated state, the aforementioned left expansion portion 12 and the left expansion portion folded edge 121 are folded together to form a long strip structure. The aforementioned shielding plate 122 shields the inflation device 3. The aforementioned inflation device 3 has two modes: automatic inflation and manual inflation. Currently, inflation devices 3 with this function are readily available on the market, so the structure of the inflation device 3 will not be described in detail here. The aforementioned right expansion portion 13 and the right expansion portion folded edge 131 are folded together to form a long strip structure. The aforementioned right expansion portion folded edge 131 shields the air tube 4 and the whistle 41. The long strip structure effectively reduces the surface area of ​​the life jacket in the non-inflated state, while preventing the airbag 2 from curling, greatly improving the appearance of the aforementioned life jacket body 1. When the aforementioned inflation device 3 comes into contact with water or is manually inflated, the compressed gas inside the inflation device 3 enters the airbag 2 through the inflation port 221. The airbag 2 inflates, causing the left inflation airbag 22 to expand and open the left expansion part 12 and the left expansion part fold 121. The left expansion part Velcro 123 and the left expansion part mating Velcro 1211 tear apart under the action of the expansion of the left inflation airbag 22. At the same time, the expansion of the airbag 2 also causes the right inflation airbag 23 to expand and open the right expansion part 13 and the right expansion part fold 131. The right expansion part Velcro 131 and the right expansion part mating Velcro 1311 tear apart under the action of the expansion of the right inflation airbag 23, finally forming Figure 5 As shown in the diagram, the person who has fallen into the water can inflate the airbag 2 through the aforementioned air tube 4, and can also use the whistle 41 to call for help if necessary.

Claims

1. A TPU film airbag life jacket, comprising a life jacket body (1), wherein the life jacket body (1) includes a head and neck expansion portion (11), a left expansion portion (12) communicating with the left side of the head and neck expansion portion (11), and a right expansion portion (13) communicating with the right side of the head and neck expansion portion (11), characterized in that: The life jacket body (1) is independently wrapped with an airbag (2) by a full-circumference sewn edge. An inflation device (3) communicating with the airbag (2) is provided on the left expansion part (12). An air blowing tube (4) communicating with the airbag (2) is provided on the right expansion part (13). The left expansion part (12) is folded to the left on the side close to the right expansion part (13) to form a left expansion part fold (121). The left edge of the left expansion part (12) and the left edge of the left expansion part fold (121) are detachably connected. The right expansion part (13) is folded to the right on the side close to the left expansion part (12) to form a right expansion part fold (131). The right edge of the right expansion part (13) and the right edge of the right expansion part fold (131) are detachably connected. The air blowing tube (4) is wrapped between the right expansion part (13) and the right expansion part fold (131).

2. The TPU film airbag life jacket according to claim 1, characterized in that: The left expansion portion (12) and the left expansion portion folded edge (121) are folded together to form a long strip structure, and the right expansion portion (13) and the right expansion portion folded edge (131) are folded together to form a long strip structure.

3. The TPU film airbag life jacket according to claim 1, characterized in that: The inflation device (3) is located on the side of the left expansion part fold (121) facing forward. A cover plate (122) is sewn on the edge of the left expansion part (12) and the left expansion part fold (121). The cover plate (122) is folded to the left and covers the front of the left expansion part fold (121) to cover the inflation device (3). A transparent rubber sheet (1222) is provided on the cover plate (122) corresponding to the position of the inflation device (3). A cover plate hook and loop fastener (1221) is provided on the side edge of the cover plate (122) near the left expansion part fold (121). A cover plate matching hook and loop fastener (1212) is provided on the side edge of the left expansion part fold (121) corresponding to the cover plate hook and loop fastener (1221).

4. The TPU film airbag life jacket according to claim 1, characterized in that: The head and neck expansion portion (11), the left expansion portion (12), and the right expansion portion (13) form a U-shaped structure.

5. The TPU film airbag life jacket according to claim 1, characterized in that: The airbag (2) is made of a single layer of thermoplastic polyurethane elastic film with a thickness of 0.2 mm to 0.25 mm.

6. The TPU film airbag life jacket according to claim 1, characterized in that: The airbag (2) includes a head and neck bladder (21) located in the head and neck expansion section (11), a left expansion airbag (22) communicating with the head and neck bladder (21) and extending into the left expansion section (12), and a right expansion airbag (23) communicating with the head and neck bladder (21) and extending into the right expansion section (13). The left expansion airbag (22) is laid flat in the left expansion section (12) and the left expansion section fold (121) and is folded in half as the left expansion section fold (121) is folded in half. The right expansion airbag (23) is laid flat in the right expansion section (13) and the right expansion section fold (131) and is folded in half as the right expansion section fold (131) is folded in half. The left expansion airbag (22) has an inflation port (221) connected to the inflation device (3), and the blowing tube (4) is formed on the right expansion airbag (23).

7. The TPU film airbag life jacket according to claim 1, characterized in that: A left expansion hook and loop fastener (123) is provided on the front left side edge of the left expansion portion (12), and a left expansion portion fitting hook and loop fastener (1211) is provided on the side edge opposite to the left expansion portion hook and loop fastener (123). A right expansion portion hook and loop fastener (132) is provided on the front right side edge of the right expansion portion (13), and a right expansion portion fitting hook and loop fastener (1311) is provided on the side edge opposite to the right expansion portion hook and loop fastener (132).

8. The TPU film airbag life jacket according to claim 1, characterized in that: The periphery of the life jacket body (1) is treated by folding and sewing.

9. The TPU film airbag life jacket according to claim 1, characterized in that: The life jacket body (1) is provided with a waist belt (5), and the waist belt (5) is provided with a waist belt separation buckle (52). The waist belt (5) is fixedly connected to the left expansion part (12) and the right expansion part (13) on both sides of the waist belt separation buckle (52). The waist belt (5) is provided with a waist belt length adjustment buckle (51). The waist belt (5) is connected to a back strap (6) through a belt body connecting part (61) at the middle rear of the waist belt (5). The belt body connecting part (61) is slidably provided on the waist belt (5). One end of the back strap (6) is fixed to the belt body connecting part (61), and the other end is fixed to the rear side of the head and neck expansion part (11). The back strap (6) is provided with a back strap length adjustment buckle (62).

10. A TPU film airbag life jacket according to claim 1, characterized in that: A whistle (41) is connected to one side of the air pipe (4) via a rope.

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