Seat belt airbag device

Abstract

The utility model relates to the field of automobile safety, in particular to a safety belt airbag device which comprises an airbag, a gas generator and a safety belt, the lower fixing end of the safety belt is fixed on the side face of a seat framework, the airbag is arranged on the safety belt and is close to the lower fixing end of the safety belt after being folded, and the gas generator is fixed on the side face of the seat framework. And an air guide channel is arranged between the air generator and the air bag air pocket. The air bag can still provide effective protection for automobile passengers in an unconventional sitting posture, the internal space of the steering wheel can be saved for arrangement of electronic elements with other functions, along with application of the air bag, a traditional air bag in the front row is canceled, an electronic screen does not need to consider and hinder ignition and unfolding of a traditional main driving air bag and a traditional co-driving air bag, and the safety of the automobile is improved. The electronic entertainment screen can be made larger, so that more functions can be integrated conveniently. Due to the application of the safety air bag, passengers in the back row can also enjoy the electronic screen. And the science and technology change life is really enjoyed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile safety, in particular to a safety belt airbag device. Background Art

[0002] While current driver-side frontal airbags can provide effective cushioning protection for the driver, the traditional driver's airbag is located inside the steering wheel, which takes up a significant amount of space. Furthermore, with technological advancements, more and more functions will be integrated into the steering wheel, and the electronic components that support these functions will require space to be placed on the steering wheel. Furthermore, with the advancement and development of autonomous driving technology in recent years, the steering wheel will need to be folded or even eliminated in order to create more interior space. Furthermore, with autonomous driving becoming increasingly common, front passenger seats will be required to rotate to face the rear passengers, and seats will rotate at large angles. In this case, the traditional driver and passenger airbags will no longer be able to provide effective protection in the event of an accident.

[0003] In addition, as electric vehicles replace a large number of mechanical watches in the car with electronic screens, the passenger seat trim has also been replaced by entertainment screens, and a large number of cars have begun to add rear-seat entertainment. With the increase of electronic screens, when a car collides, a large amount of glass fragments will fly out and cause irreversible damage to the car occupants. Based on the above-mentioned automobile development trends, the use of seat belt airbags has become a guarantee to provide good protection for car occupants. Utility Model Content

[0004] In view of the above problems, an embodiment of the present utility model provides a seat belt airbag device.

[0005] An embodiment of the utility model provides a seat belt airbag device, which includes an airbag, a gas generator and a seat belt. The lower fixed end of the seat belt is fixed to the side of the seat frame. The airbag is folded and arranged on the seat belt and close to the lower fixed end of the seat belt. The gas generator is fixed to the side of the seat frame. An air guide channel is provided between the gas generator and the airbag.

[0006] Compared to existing technologies, this invention offers significant advantages: it not only effectively protects vehicle occupants in unconventional seating positions, but also frees up space within the steering wheel for electronic components used for other functions. Furthermore, with the use of this airbag, conventional front-row airbags are eliminated, eliminating the need for electronic screens to interfere with the deployment of conventional driver and passenger airbags. This allows for larger electronic entertainment screens to facilitate the integration of more functions. Thanks to the use of this airbag, rear-seat passengers can also enjoy the benefits of electronic screens, truly experiencing how technology transforms lives.

[0007] Optionally, the interior of the airbag is a chamber or includes multiple chambers arranged in sequence from top to bottom and connected.

[0008] Optionally, two pull tabs are arranged opposite to each other in the upper and lower parts of the airbag, and ventilation holes are provided on the pull tabs to divide the airbag into a first chamber, a second chamber and a third chamber.

[0009] Optionally, a connecting bracket is provided on the slide rail in the seat frame, and the lower fixed end of the safety belt is fixed to the connecting bracket.

[0010] Optionally, the airbag is folded and sewn to the seat belt using sewing thread, or is fixed to the seat belt using a buckle.

[0011] Optionally, the air guide channel includes an air storage chamber adapted to the gas generator, and the gas outlet end of the gas generator is inserted into the air storage chamber;

[0012] Alternatively, the air guide channel includes an air guide pipe arranged at the channel opening, the air guide pipe is fixed to the air guide channel by a clamp, and the air guide pipe is communicated with the air outlet end of the gas generator.

[0013] Optionally, an elastic band is sewn on the inside of the air guide channel.

[0014] Optionally, the airbag is folded and arranged on a side of the seat belt facing away from the occupant.

[0015] Optionally, the airbag is formed by sewing a single piece of cloth in one piece or by sewing multiple pieces of cloth in one piece.

[0016] Optionally, the gas generator is fixed to the seat frame in the following ways, but not limited to:

[0017] Fixed to the seat frame by brackets and clamps with bolts;

[0018] It is fixed to the seat frame by a clamp with bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 Schematic diagram of the seat belt airbag device in the detonated state provided by the embodiment of the utility model Figure 1 ;

[0021] Figure 2 Schematic diagram of the seat belt airbag device in the detonated state provided by the embodiment of the utility model Figure 2 ;

[0022] Figure 3 A schematic diagram of the structure of an airbag provided in a buckle form according to an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of an airbag provided by sewing in an embodiment of the present invention;

[0024] Figure 5 A schematic cross-sectional view of the airbag portion of the seat belt airbag device provided in an embodiment of the present invention Figure 1 ;

[0025] Figure 6 A schematic cross-sectional view of the airbag portion of the seat belt airbag device provided in an embodiment of the present invention Figure 2 ;

[0026] Figure 7 This is a schematic diagram of the use status of the seat belt airbag device provided by an embodiment of the utility model.

[0027] Among them, 1. Airbag; 2. Gas generator; 3. Safety belt; 4. Lower fixed end; 5. Seat frame; 6. Air guide channel; 7. Pull tab; 8. Vent; 9. Connecting bracket; 10. Air storage chamber; 11. Air guide tube. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the schematic embodiments of the present invention and their description are used to explain the present invention, but are not intended to limit the present invention.

[0029] See also Figure 1-Figure 7 A seat belt airbag device provided by an embodiment of the utility model includes an airbag bag 1, a gas generator 2 and a seat belt 3. The lower fixed end 4 of the seat belt 3 is fixed to the side of the seat frame 5. The airbag bag 1 is folded and arranged on the seat belt 3 and close to the lower fixed end 4 of the seat belt 3. The gas generator 2 is fixed to the side of the seat frame 5. An air guide channel 6 is provided between the gas generator 2 and the airbag bag 1.

[0030] In practice, the interior of the airbag 1 is a chamber or includes a plurality of chambers arranged sequentially from top to bottom and connected.

[0031] During implementation, two pull tabs 7 are arranged opposite to each other in the upper and lower parts of the airbag 1, and vent holes 8 are provided on the pull tabs 7 to divide the airbag 1 into a first chamber, a second chamber and a third chamber arranged in sequence from top to bottom; when the airbag 1 is detonated, a safety airbag is formed, and the first chamber and the second chamber in the airbag provide effective protection for the car occupants, and the third chamber mainly provides support for the first chamber and the second chamber and limits the displacement of the occupants' bodies.

[0032] During implementation, a connecting bracket 9 is provided on the slide rail in the seat frame 5, and the lower fixed end 4 of the safety belt 3 is fixed to the connecting bracket 9; the lower fixed end 4 of the safety belt 3 is fixed on the slide rail, so that the airbag 1 can provide effective protection for the occupant after deployment, no matter where the car occupant is in the entire seat travel.

[0033] In practice, the airbag 1 is folded and then sewn onto the safety belt 3 using sewing thread, or fixed onto the safety belt 3 using a buckle.

[0034] In practice, the air guide channel 6 includes an air storage chamber 10 adapted to the gas generator 2. The gas outlet end of the gas generator 2 is inserted into the air storage chamber 10 and can be locked by a clamp after insertion.

[0035] Alternatively, the air guide channel 6 includes an air guide pipe 11 arranged at the channel opening, the air guide pipe 11 is fixed to the air guide channel 6 by a clamp, and the air guide pipe 11 is communicated with the gas outlet end of the gas generator 2.

[0036] In practice, an elastic band is sewn on the inner side of the air guide channel 6; the elastic band is a webbing with a certain elasticity variable.

[0037] During implementation, the airbag 1 is folded and arranged on the side of the safety belt 3 facing away from the occupant.

[0038] During implementation, the airbag 1 is formed by sewing a single piece of cloth into one piece or by sewing multiple pieces of cloth into one piece. In addition, the air guide channel 6 can be sewn into one piece with the airbag 1, or a whole piece of cloth can be cut, folded in half, and sewn to form an overall structure including the air guide channel 6 and the airbag 1.

[0039] In practice, the gas generator 2 is fixed to the seat frame 5 in the following ways, but not limited to:

[0040] Fixed to the seat frame by brackets and clamps with bolts;

[0041] It is fixed to the seat frame by a clamp with bolts.

[0042] In a specific implementation, the seat basin side panel in the seat frame 5 needs to reserve installation holes according to the bolts of the gas generator bracket. Finally, the bolts on the gas generator bracket are inserted into the reserved installation holes, and the nuts are tightened to complete the fixation.

[0043] In practice, the safety belt 3 can be arranged on the vehicle body or on the seat according to actual production requirements.

[0044] The solution provided by this utility model not only provides effective protection for vehicle occupants in unconventional seating positions but also frees up space within the steering wheel for electronic components used for other functions. Furthermore, with the use of this airbag, conventional front-row airbags are eliminated, and the electronic screen no longer interferes with the deployment of the traditional driver and passenger airbags. The electronic entertainment screen can be made larger, facilitating the integration of more functions. Thanks to the use of this airbag, rear-seat passengers can also enjoy the electronic screen. Truly experiencing how technology changes our lives.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A seat belt airbag device, comprising an airbag, a gas generator and a seat belt, characterized in that: The lower fixed end of the seat belt is fixed to the side of the seat frame. The airbag is folded and arranged on the seat belt and close to the lower fixed end of the seat belt. The gas generator is fixed to the side of the seat frame. An air guide channel is set between the gas generator and the airbag.

2. The seat belt airbag device according to claim 1, wherein: The interior of the airbag is a chamber or includes a plurality of chambers arranged in sequence from top to bottom and connected.

3. The seatbelt airbag device according to claim 2, wherein: Two pull tabs are arranged opposite to each other in the upper and lower parts of the airbag, and ventilation holes are arranged on the pull tabs to divide the airbag into a first chamber, a second chamber and a third chamber.

4. The seatbelt airbag device according to claim 1, wherein: A connecting bracket is provided on the slide rail in the seat frame, and the lower fixed end of the safety belt is fixed to the connecting bracket.

5. The seatbelt airbag device according to claim 1, wherein: After the airbag is folded, it is sewn to the seat belt with sewing thread or fixed to the seat belt with a buckle.

6. The seatbelt airbag device according to claim 1, wherein: The air guide channel includes an air storage chamber arranged at the channel opening and adapted to the gas generator, and the gas outlet end of the gas generator is inserted into the air storage chamber; Alternatively, the air guide channel includes an air guide pipe arranged at the channel opening, the air guide pipe is fixed to the air guide channel by a clamp, and the air guide pipe is communicated with the air outlet end of the gas generator.

7. The seatbelt airbag device according to claim 1, wherein: Elastic band sewn into the air channel.

8. The seatbelt airbag device according to claim 1, wherein: The airbag is folded and placed on the side of the seat belt facing away from the occupant.

9. The seatbelt airbag device according to claim 1, wherein: The airbag is formed by sewing a single piece of cloth into one piece or by sewing multiple pieces of cloth into a piece.

10. The seatbelt airbag device according to claim 1, wherein: The gas generator is fixed to the seat frame in the following ways, but not limited to: Fixed to the seat frame by brackets and clamps with bolts; It is fixed to the seat frame by a clamp with bolts.

Images