Safety air bag and automobile

Abstract

The utility model provides an air bag restraint system and an automobile, the air bag restraint system comprises two long-strip-shaped air bags, the first ends of the long-strip-shaped air bags are used for being installed on an air bag installation position of the automobile, the two long-strip-shaped air bags are used for being arranged on the air bag installation position in the width direction of the automobile in a spaced mode, and a soft anti-collision piece is connected between the two long-strip-shaped air bags; the soft anti-collision piece is located at the second end of the long-strip-shaped air bag. When the long-strip-shaped air bags are installed on the air bag installation positions and the safety air bag is in an inflation unfolding state, the second ends of the two long-strip-shaped air bags extend towards the head and chest positions of a passenger to be protected, and the soft anti-collision piece is opened between the two long-strip-shaped air bags under the tension action of the two long-strip-shaped air bags. Therefore, the head and the chest of the to-be-protected passenger are buffered and protected. The safety air bag is installed on the rear side of the front-row seat, the installation influence of the installed safety air bag on functional devices on a backrest of the front-row seat can be reduced, and the safety air bag is more suitable for being installed on the rear side of the front-row seat to conduct buffering protection on rear-row passengers.

Description

Technical Field

[0001] The present application relates to the field of automobile safety technology, and in particular to an airbag and an automobile. Background Art

[0002] As people pay more attention to the safety performance of automobiles, they begin to realize that rear passengers may also face serious injury risks in accidents. Therefore, the safety requirements for rear passengers are gradually increasing. In order to improve the safety protection of rear passengers, rear airbags can be set to better protect rear passengers. The research on airbags in related technologies mainly focuses on front airbags, and rear airbags usually adopt a conventional structure similar to that of front airbags.

[0003] However, since the installation position of the rear airbag in the car is different from that of the front airbag, the rear airbag is usually installed on the backrest of the front seat, and the backrest of the front seat is usually provided with some functional devices, such as display screens, storage panels, etc., and the conventional airbag structure similar to that of the front airbag is adopted, the installation of the rear airbag may affect the installation of functional devices on the front seat. Therefore, designing an airbag suitable for installation on the rear side of the front seat is an urgent problem to be solved. Utility Model Content

[0004] The present application provides an airbag and a car. The airbag provided is installed at the rear side of the front seat, which can reduce the installation impact of the installed airbag on the functional components on the front seat backrest. Therefore, it is more suitable to be installed at the rear side of the front seat to provide buffering protection for rear passengers. The specific scheme is as follows:

[0005] In a first aspect, an embodiment of the present application provides a safety airbag, comprising: two elongated airbags, wherein the first ends of the elongated airbags are used to be installed on an airbag installation position of a vehicle, and the two elongated airbags are used to be arranged at intervals along the width direction of the vehicle on the airbag installation position, and a soft anti-collision sheet is connected between the two elongated airbags, and the soft anti-collision sheet is located at the second ends of the elongated airbags;

[0006] When the elongated airbag is installed on the airbag installation position and the safety airbag is in an inflated and deployed state, the second ends of the two elongated airbags extend toward the head and chest of the occupant to be protected, and the soft anti-collision sheet is stretched open between the two elongated airbags under the tension of the two elongated airbags to provide cushioning protection for the head and chest of the occupant to be protected.

[0007] Optionally, the first ends of the two elongated air bags are connected via a connecting air bag, and the two elongated air bags are connected to the connecting air bag to form a connected U-shaped air bag.

[0008] Optionally, the connecting air bag is used to be installed on the airbag installation position, so that the first end of the elongated air bag is installed on the airbag installation position through the connecting air bag.

[0009] Optionally, at least one supporting air bag is connected between the two elongated air bags, and the supporting air bag is arranged adjacent to the soft anti-collision plate. The two elongated air bags, the supporting air bag and the connecting air bag are connected to form a connected annular air bag. When the airbag is in an inflated and deployed state, the supporting air bag opens the soft anti-collision plate by providing supporting force for the two elongated air bags.

[0010] Optionally, the airbag is used to provide cushioning protection for occupants in rear seats, and the airbag mounting position is arranged on the backrest of a row of seats in front of the rear seats.

[0011] Optionally, the long strip air bag is in an inverted L shape as a whole;

[0012] When the elongated airbag is installed on the airbag installation position and the safety airbag is in an inflated and deployed state, the vertical section of the elongated airbag extends from bottom to top along the backrest height of the front row of seats, and the bent section of the elongated airbag relative to the vertical section bends and extends toward the head and chest of the rear row occupant.

[0013] Optionally, a gas generator is fixedly provided in the connecting airbag, which is used to guide the generated gas from the connecting airbag toward the long airbags on both sides along the shape of the U-shaped airbag, thereby inflating the safety airbag. The gas generator is used to be installed on the airbag mounting position so that the connecting airbag can be installed on the airbag mounting position through the gas generator.

[0014] Optionally, the cross section of a section of the elongated airbag that is bent toward the head and chest of the occupant is in a shape in which the height is greater than the width, and the height of the cross section of the vertical section of the elongated airbag increases gradually from bottom to top.

[0015] In a second aspect, an embodiment of the present application further provides an automobile, wherein an airbag installation position is provided in the automobile, and the airbag as described in any one of the first aspects is installed on the airbag installation position, wherein two elongated airbags of the airbag are arranged at intervals along the width direction of the automobile, and a first end of the elongated airbag is installed on the airbag installation position;

[0016] When the airbag is in an inflated and deployed state, the second ends of the two elongated airbags extend toward the head and chest of the occupant to be protected, and the soft anti-collision sheet is stretched open between the two elongated airbags under the tension of the two elongated airbags to provide cushioning protection for the head and chest of the occupant to be protected.

[0017] Optionally, the automobile is provided with multiple rows of seats, and the airbag mounting position is arranged on the seat back frame of the row of seats in front of the protection seat, and the protection seat is the seat protected by the safety airbag.

[0018] Compared with the prior art, this application has the following advantages:

[0019] The safety airbag provided by the present application comprises two long strip airbags, the first end of the long strip airbags is used to be installed on the airbag installation position of the automobile, the two long strip airbags are used to be arranged at intervals along the width direction of the automobile on the airbag installation position, a soft anti-collision sheet is connected between the two long strip airbags, and the soft anti-collision sheet is located at the second end of the long strip airbags; when the long strip airbags are installed on the airbag installation position and the safety airbags are in an inflated and deployed state, the second ends of the two long strip airbags both extend toward the head and chest position of the occupant to be protected, that is, when When the airbag is in the inflated and deployed state, the first end of the elongated airbag is installed on the airbag mounting position of the car, and the second end of the elongated airbag extends toward the head and chest of the occupant to be protected. The soft anti-collision sheet is stretched between the two elongated airbags under the tension of the two spaced-apart elongated airbags. Since the soft anti-collision sheet is located at the second end of the elongated airbag, the soft anti-collision sheet extends toward the head and chest of the occupant to be protected when the airbag is deployed. Therefore, the soft anti-collision sheet can provide cushioning protection for the head and chest of the occupant to be protected.

[0020] The safety airbag provided by the present application comprises two long strip airbags spaced apart in the width direction of the automobile. When the safety airbag provided by the present application is installed on the backrest of the front seat, the space between the two long strip airbags can avoid the display screen and tool box functional devices on the backrest of the front seat, thereby providing space for the installation of the functional devices on the backrest of the front seat, reducing the impact of the installed safety airbag on the installation of the functional devices on the backrest of the front seat, and is more suitable for installation on the rear side of the front seat to provide buffer protection for the rear passengers. In addition, the space between the two long strip airbags can reduce the cavity volume of the safety airbag, thereby reducing the amount of gunpowder in the propellant bag of the gas generator, thereby reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an example of an airbag provided in an embodiment of the present application.

[0022] Figure 2 yes Figure 1 The structure diagram of an example of an airbag hidden behind a protective cloth sheet is shown.

[0023] Figure 3 yes Figure 1 The structure schematic diagram of another example of the airbag hidden behind the protective cloth piece is shown.

[0024] Figure 4 It is a schematic structural view of an airbag installed on the backrest of a front-row seat and in an inflated and deployed state provided by an embodiment of the present application.

[0025] Figure 5 It is a schematic installation view of an airbag on the backrest of a front-row seat provided by an embodiment of the present application.

[0026] Figure 6 It is a schematic structural view of a separator in an embodiment of the present application.

[0027] Figure 7 It is a schematic view of the interior state when an airbag installed on the backrest of a front-row seat is in an inflated and deployed state provided by an embodiment of the present application.

[0028] Reference numerals:

[0029] 10. Airbag; 11. Long strip airbag; 12. Soft anti-collision piece; 13. Connecting airbag; 14. Supporting airbag; 15. Gas generator; 20. Front row seat; 30. Rear row seat; 50. Separator; 60. Roof. Detailed implementation manners

[0030] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementations disclosed below.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] As people pay more attention to the safety performance of automobiles, they begin to realize that rear passengers may also face serious injury risks in accidents. Therefore, the safety requirements for rear passengers are gradually increasing. In order to improve the safety protection of rear passengers, rear airbags can be set to better protect rear passengers. The research on airbags in related technologies mainly focuses on front airbags, and rear airbags usually adopt a conventional structure similar to that of front airbags.

[0034] However, since the installation position of the rear airbag in the car is different from that of the front airbag, the rear airbag is usually installed on the backrest of the front seat, and the backrest of the front seat is usually provided with some functional devices, such as display screens, storage panels, tool boxes, etc., and the conventional airbag structure similar to that of the front airbag is used, the installation of the rear airbag may affect the installation of functional devices on the front seat. Therefore, designing an airbag suitable for installation on the back side of the front seat is an urgent problem to be solved.

[0035] Based on this, the present application provides an airbag and a car. The provided airbag is installed on the rear side of the front seat, which can reduce the installation impact of the installed airbag on the functional components on the front seat backrest. Therefore, it is more suitable to be installed on the rear side of the front seat to provide cushioning protection for the rear passengers.

[0036] Next, the airbag provided by the present application will be described in detail with reference to the accompanying drawings.

[0037] like Figures 1 to 4 As shown, the airbag 10 provided in the embodiment of the present application includes two elongated airbags 11, the first end of the elongated airbag 11 is used to be installed on the airbag installation position of the automobile, and the two elongated airbags 11 are used to be arranged at intervals along the width direction of the automobile on the airbag installation position, and a soft anti-collision sheet 12 is connected between the two elongated airbags 11, and the soft anti-collision sheet 12 is located at the second end of the elongated airbag 11.

[0038] When the elongated airbags 11 are installed on the airbag installation position and the airbag 10 is in an inflated and deployed state, the second ends of the two elongated airbags 11 extend toward the head and chest of the occupant to be protected, and the soft anti-collision sheet 12 is stretched open between the two elongated airbags 11 under the action of the tension of the two elongated airbags 11 to provide cushioning protection for the head and chest of the occupant to be protected.

[0039] The airbag 10 provided in this application can be installed on the front side of the first-row seat to buffer and protect the first-row occupants. For example, it can be installed at the center position of the driver's steering wheel or in front of the steering wheel, or it can be installed at the front of the vehicle's instrument panel near the co-pilot seat, or it can also be installed inside the door to protect the occupants' sides. This application does not specifically limit it. Correspondingly, when the airbag 10 is used to buffer and protect the occupants on the first-row seat, the airbag installation position for installing the strip-shaped airbag 11 can be set at at least one of the following positions: the center position of the steering wheel, the front of the steering wheel, the front of the instrument panel near the co-pilot seat, and the inside of the door.

[0040] The airbag 10 provided in this application can also be installed on the backrest of the front-row seat to buffer and protect the occupants on the rear-row seat 30. For example, it can be installed on the rear side of the front-row seat backrest. It can be understood that when the vehicle includes three or more rows of seats, the above-mentioned rear-row seat 30 can be the second-row seat, the third-row seat, etc., and the front-row seat refers to the front-row seat 20 in front of the rear-row seat 30. Correspondingly, when the airbag 10 is used to buffer and protect the occupants on the rear-row seat 30, the airbag installation position for installing the strip-shaped airbag 11 can be set on the backrest of the front-row seat 20 in front of the rear-row seat 30.

[0041] The above-mentioned strip-shaped airbag 11 can be a bent strip shape, a straight strip shape, or other strip shapes. This application does not specifically limit it. The strip-shaped airbag 11 can be a polyester fiber airbag or a nylon airbag, or an airbag of other materials. The strip-shaped airbag 11 has high strength and wear resistance and can withstand pressure when inflated to protect passengers from harm.

[0042] Specifically, as Figures 1 to 4 、 Figure 7 shown, when the airbag 10 is installed on the backrest of the front-row seat 20 to buffer and protect the occupants on the rear-row seat 30, the above-mentioned strip-shaped airbag 11 can be integrally in an inverted L shape. When the strip-shaped airbag 11 is installed on the above-mentioned airbag installation position and the airbag 10 is in the inflated and deployed state, the vertical section of the strip-shaped airbag 11 extends upward from the bottom along the height of the backrest of the front-row seat 20, and the bent section of the strip-shaped airbag 11 relative to the vertical section bends and extends towards the head and chest of the rear-row occupant. Among them, the airbag 10 being in the inflated and deployed state means that each airbag included in the airbag 10 is in the inflated and deployed state. Through the inverted L-shaped strip-shaped airbag 11, the vertical section of the strip-shaped airbag 11 can extend to the height of the head and chest of the rear-row occupant and then bend towards the head and chest position of the rear-row occupant to better buffer the rear-row occupant, and the vertical section can rely on the backrest of the front-row seat to keep the position of the strip-shaped airbag 11 reliable due to extending upward from the bottom along the height of the backrest of the front-row seat 20, thus ensuring the buffering effect.

[0043] The soft anti-collision sheet 12 can be a cloth sheet, a woven fabric sheet, etc., or other elastic soft sheet-like structures, and the present application does not specifically limit it.

[0044] The soft anti-collision sheet 12 can extend along the above-mentioned bent segments of the two strip-shaped airbags 11, so that the entire above-mentioned bent segments are connected with the soft anti-collision sheet 12, improving the connection stability of the soft anti-collision sheet 12. Alternatively, the soft anti-collision sheet 12 can also be connected only at the ends (i.e., the above-mentioned second ends) of the bent segments of the strip-shaped airbags 11, and this can also effectively perform buffer protection.

[0045] The first ends of the two strip-shaped airbags 11 are used for installation on the airbag installation positions of the vehicle. It can be that the two strip-shaped airbags 11 are respectively installed on the airbag installation positions. Or, the first ends of the two strip-shaped airbags 11 can be connected through a connection structure, and the connection structure is installed on the airbag installation position.

[0046] Specifically, as Figures 1 to 3 shown, the first ends of the two strip-shaped airbags 11 can be connected through a connecting airbag 13. The two strip-shaped airbags 11 and the connecting airbag 13 are communicated to form a communicating U-shaped airbag. The two strip-shaped airbags 11 and the connecting airbag 13 can be of an integral structure, so that the structure of the airbag 10 is more reliable. By setting the connecting airbag 13, the two strip-shaped airbags 11 can be connected into an integral structure, so that the overall structure of the airbag 10 can be more reliable. In addition, it is more convenient to simultaneously inflate the two strip-shaped airbags 11 through a gas generator 15, making the overall structure of the airbag 10 simpler and the inflation more reliable.

[0047] The first end of the strip-shaped airbag 11 can be connected to the airbag installation position through connection methods such as bolt connection, clamping connection, bonding connection, riveting connection, etc.

[0048] When the strip-shaped airbag 11 is in an inverted L shape as a whole, the end of the vertical section of the strip-shaped airbag 11 is the first end of the strip-shaped airbag 11, and the end of the bent section of the strip-shaped airbag 11 relative to the vertical section is the above-mentioned second end.

[0049] The two strip-shaped airbags 11 are arranged at intervals along the vehicle width direction on the airbag mounting positions, which may be that the two strip-shaped airbags 11 are respectively installed at different positions on the airbag mounting positions at intervals along the vehicle width direction. Optionally, the two strip-shaped airbags 11 may also be connected to both ends of the above-mentioned connecting airbag 13 at intervals to form the above-mentioned U-shaped airbag. The connecting airbag 13 of the U-shaped airbag is used to be installed on the airbag mounting position. During the installation process, the two strip-shaped airbags 11 are arranged at intervals along the vehicle width direction, so that the first ends of the strip-shaped airbags 11 can be installed on the airbag mounting position through the connecting airbag 13. In this way, the two strip-shaped airbags 11 can be conveniently installed on the airbag mounting position through the connecting airbag 13.

[0050] The cross-sectional shape of the U-shaped airbag can be set according to the actual situation, and the present application does not specifically limit it. For example, the cross-section of the U-shaped airbag can be circular or a polygon with rounded corners. The cross-section of the connecting airbag 13 of the U-shaped airbag can be the same as or different from the cross-section of the strip-shaped airbag 11. The cross-section of the strip-shaped airbag 11 can also gradually change along the length direction. The present application does not limit the specific cross-sectional shape. Exemplarily, as Figures 1 to 4 shown, the strip-shaped airbag 11 can be in the shape of a cue stick.

[0051] In a specific embodiment, when the strip-shaped airbag 11 is integrally in an inverted L shape, as Figure 2 、 Figure 3 shown, the cross-section of the bent section of the strip-shaped airbag 11 towards the occupant's head and chest can be a shape with a height greater than the width. For example, it can be a rectangle with rounded corners and a height greater than the width. The cross-sectional height of the vertical section of the strip-shaped airbag 11 can gradually increase from bottom to top. In this way, the bent section of the strip-shaped airbag 11 towards the occupant's head and chest can be relatively large in the height direction, so that the protective cloth piece can be set relatively large, improving the protection strength for the occupant.

[0052] The soft anti-collision sheet 12 can be a polyester fiber cloth sheet or a nylon cloth sheet, or other cloth sheets. The present application does not specifically limit it. The soft anti-collision sheet 12 can be connected to the strip-shaped airbag 11 by sewing, bonding, integral molding or other methods, and the specific connection method is not limited.

[0053] In a specific embodiment, as Figure 3As shown, at least one supporting airbag 14 can be connected between the two long strip airbags 11, and the supporting airbag 14 is arranged adjacent to the soft anti-collision sheet 12. The two long strip airbags 11, the supporting airbag 14 and the connecting airbag 13 are connected to form a connected annular airbag. When the airbag 10 is in the inflated and deployed state, the supporting airbag 14 provides support force for the two long strip airbags 11 to open the soft anti-collision sheet 12. The supporting airbag 14 can be a long strip airbag, such as a long strip cylindrical airbag, or a long strip airbag with other cross-section shapes to better connect between the two long strip airbags 11. The supporting airbag 14 is arranged adjacent to the soft anti-collision sheet 12, and the distance between the supporting airbag 14 and the soft anti-collision sheet 12 can be less than a preset distance. The preset distance can be set according to actual conditions and is not specifically limited in this application. The supporting airbag 14 can be connected to the long strip airbag 11 by sewing, bonding, integral molding, etc. The supporting airbag 14 may be located at the bend of the long strip airbag 11. In this embodiment, the supporting airbag 14 is provided to more stably support the two long strip airbags 11, thereby more reliably supporting the soft anti-collision sheet 12 to ensure the buffering protection effect.

[0054] In a specific embodiment, a gas generator 15 can be fixedly installed in the connecting airbag 13. The gas generator 15 is used to guide the generated gas from the connecting airbag 13 to the long airbags 11 on both sides along the shape of the U-shaped airbag, so as to inflate the airbag 10. Specifically, it is used to inflate each airbag of the airbag 10, so that the above-mentioned U-shaped airbag is expanded by inflation through the gas generator 15. The gas generator 15 is also used to be installed on the above-mentioned airbag mounting position, so that the connecting airbag 13 can be installed on the airbag mounting position through the gas generator 15.

[0055] The gas generator 15 may include a propellant charge, an ignition device, and a generator housing. The propellant charge contains chemical substances of the gas generator 15, which are used to quickly generate a large amount of gas when the vehicle collides, so as to quickly inflate the airbag 10. The ignition device is used to ignite the propellant charge to start a chemical reaction to generate gas. The ignition device may be an electronic trigger, which is controlled by the electronic control unit of the vehicle. The propellant charge and the ignition device are arranged in the generator housing.

[0056] The generator housing of the gas generator 15 is fixedly connected to the airbag 13 , and the generator housing can be installed on the airbag installation position by bolt connection, clamping, etc.

[0057] In the embodiment of the present application, when the strip-shaped airbag 11 is installed on the airbag installation position and the airbag 10 is in the inflated and deployed state, the vertical sections of the two strip-shaped airbags 11 can be respectively opposite to the two calves of the rear occupant when sitting, so as to buffer the calf part of the occupant. The bent part of the strip-shaped airbag 11 can be opposite to the knee of the occupant, so as to buffer the knee part of the occupant.

[0058] The airbag 10 provided by the present application includes two strip-shaped airbags 11. The first end of the strip-shaped airbag 11 is used to be installed on the airbag installation position of the vehicle. The two strip-shaped airbags 11 are arranged at intervals along the vehicle width direction on the airbag installation position. A soft anti-collision sheet 12 is connected between the two strip-shaped airbags 11, and the soft anti-collision sheet 12 is located at the second end of the strip-shaped airbag 11. When the strip-shaped airbag 11 is installed on the airbag installation position and the airbag 10 is in the inflated and deployed state, the second ends of the two strip-shaped airbags 11 both bend and extend towards the head and chest positions of the occupant to be protected. That is to say, when the airbag 10 is in the inflated and deployed state, the first end of the strip-shaped airbag 11 is installed on the airbag installation position of the vehicle, the second end of the strip-shaped airbag 11 bends and extends towards the head and chest positions of the occupant to be protected, and the soft anti-collision sheet 12 is stretched and tightened between the two spaced strip-shaped airbags 11 under the action of the external tension of the two strip-shaped airbags 11. Since the soft anti-collision sheet 12 is located at the second end of the strip-shaped airbag 11, when the airbag 10 is deployed, the soft anti-collision sheet 12 extends towards the head and chest positions of the occupant to be protected. Therefore, the soft anti-collision sheet 12 can buffer and protect the head and chest of the occupant to be protected.

[0059] Since the airbag 10 provided by the present application includes two strip-shaped airbags 11 arranged at intervals along the vehicle width direction, when the airbag 10 provided by the present application is installed on the backrest of the front seat, the interval between the two strip-shaped airbags 11 can avoid the functional devices on the backrest of the front seat, thereby providing space for the installation of the functional devices on the backrest of the front seat, reducing the installation impact of the installed airbag 10 on the functional devices on the backrest of the front seat, and being more suitable for being installed behind the front seat to buffer and protect the rear occupant. In addition, there is an interval between the two strip-shaped airbags 11, which can reduce the cavity volume of the airbag 10, thereby reducing the amount of gunpowder in the propellant charge of the gas generator 15, and thus reducing the cost.

[0060] The embodiment of the present application also provides a vehicle. There is a vehicle installation position in the vehicle. The airbag 10 as described in any one of the above embodiments is installed on the airbag installation position. The two strip-shaped airbags 11 of the airbag are arranged at intervals along the vehicle width direction, and the first end of the strip-shaped airbag 11 is installed on the airbag installation position.

[0061] When the airbag is in an inflated and deployed state, the second ends of the two elongated airbags 11 extend toward the head and chest of the occupant to be protected, and the soft anti-collision sheet 12 is stretched open between the two elongated airbags 11 under the tension of the two elongated airbags 11 to provide cushioning protection for the head and chest of the occupant to be protected.

[0062] The airbag installation position may include at least one of the following positions: the center of the steering wheel, the front of the steering wheel, the front of the instrument panel near the passenger seat, the inside of the door, and the backrest of the front row of seats 20 .

[0063] Optionally, multiple rows of seats can be provided in the car, and the airbag installation position can be provided on the backrest of the row of seats 20 in front of the protection seat, specifically, it can be provided on the backrest frame of the row of seats 20 in front of the protection seat. The protection seat is the seat protected by the airbag 10. In this way, the airbag 10 provided in the present application can be installed on the backrest of the front row of seats 20 to provide buffering protection for the rear passengers.

[0064] Alternatively, if Figure 4 As shown, when the safety airbag 10 includes the above-mentioned connecting airbag 13 , the connecting airbag 13 can be installed on the airbag installation position, so that the first end of the elongated airbag 11 can be installed on the airbag installation position through the connecting airbag 13 .

[0065] Alternatively, if Figure 4 , Figure 7 As shown, the long strip airbag 11 can be in an inverted L-shape as a whole; when the airbag is in an inflated and deployed state, the vertical section of the long strip airbag 11 extends from bottom to top along the backrest height of the front row of seats 20, and the bent section of the long strip airbag 11 relative to the vertical section bends and extends toward the head and chest of the rear row occupant.

[0066] Alternatively, if Figure 4 , Figure 7 As shown, a gas generator 15 may be fixedly provided in the connecting airbag 13 for inflating the safety airbag, and the gas generator 15 is installed on the airbag mounting position so that the connecting airbag 13 is installed on the airbag mounting position through the gas generator 15 .

[0067] Optionally, when a gas generator 15 is fixedly installed in the connecting airbag 13, a mounting bracket can be provided on the seat back frame of the front row of seats 20, and the gas generator 15 can be fixedly installed on the mounting bracket. For example, the generator housing of the gas generator 15 is fixed to the mounting bracket by bolting, clamping, riveting, etc., and the installation of the mounting bracket makes it easier to install the airbag 10 on the backrest of the front seat.

[0068] Optionally, the airbag installation position can be set at the lower middle part of the backrest of the front row seat 20, so that the connecting airbag 13 of the airbag 10 is installed under the backrest of the front row seat 20, enabling the installed airbag to extend from the bottom upwards to the head and chest height of the rear row occupant. In this way, effective buffering protection can be provided for the legs and knees of the rear row occupant, and it is also convenient for the deployment posture of the airbag. Installing at the lower middle part of the backrest of the front row seat 20 can also leave the upper middle position of the front row seat 20 vacant to provide space for the installation of a display screen or a toolbox.

[0069] Optionally, a separator 50 can be provided on the skeleton of the backrest of the front row seat 20. The separator 50 can also be understood as a deflector. The airbag 10 is installed on the side of the separator 50 facing the rear row seat 30 (i.e., the protective seat). The side of the separator 50 facing away from the rear row seat 30 is used for installing components inside the backrest. Components inside the backrest can include, for example, sensors, cables, etc., but are not limited thereto. The separator 50 can be a cloth piece, a plastic piece, etc., or other materials with isolation and protection functions. The present application does not specifically limit it. The separator 50 can be connected to the skeleton of the seat backrest by means of screw connection, snap connection or gas connection. By providing the separator 50 in this embodiment, it is possible to better prevent the airbag from being scratched and damaged during the process of inflating the airbag when the gas generator 15 detonates, and it is also possible to better prevent damage to components such as the wiring harness inside the seat backrest during the detonation process.

[0070] It can be understood that when there is no collision, the airbag 10 is folded and placed inside the backrest of the front row seat 20. An airbag shield can be provided on the backrest of the front row seat 20, and the airbag shield is used to block the airbag 10. When a collision occurs, the electronic control unit of the vehicle controls the gas generator 15 of the airbag 10 to inflate each airbag of the airbag 10, causing the airbag 10 to inflate and deploy, so as to push the airbag shield away from the backrest of the front row seat 20 and make the airbag 10 pop out to protect the occupants.

[0071] The specific implementation manner of the airbag 10 in this vehicle embodiment and the installation method of the airbag on the vehicle are analogous to the airbag 10 in the above embodiment. For specific details, refer to the relevant content of the above embodiment, and no redundant description will be given here.

[0072] It should be noted that although several structures, components or units for implementing related functions are mentioned in the above detailed description, this division is not mandatory. In fact, according to the specific implementation manner of the present application, the features and functions of two or more structures, components or units described above can be embodied in one structure, component or unit. Conversely, the features and functions of one structure, component or unit described above can be further divided and embodied by multiple components, structures or units.

[0073] In addition, although the various components of the components or devices in the present application and the installation methods between the components are described in a specific order in the accompanying drawings, this does not require or imply that the components or devices must be designed according to the specific components or the installation methods between the components, or that all the shown components must be included to achieve the desired results. Additionally or alternatively, some components may be omitted, multiple components may be combined into one component to achieve the corresponding function, and / or one component may be decomposed into multiple components to achieve the corresponding function, etc.

[0074] Although the present application is disclosed above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be subject to the scope defined by the claims of the present application.

Claims

1. A safety airbag, characterized in that: include: Two long strip air bags (11), wherein the first end of the long strip air bags (11) is used to be installed on an air bag installation position of a car, and the two long strip air bags (11) are used to be arranged at intervals along the width direction of the car on the air bag installation position, and a soft anti-collision sheet (12) is connected between the two long strip air bags (11), and the soft anti-collision sheet (12) is located at the second end of the long strip air bags (11); When the elongated airbag (11) is installed on the airbag installation position and the safety airbag is in an inflated and deployed state, the second ends of the two elongated airbags (11) both extend toward the head and chest of the occupant to be protected, and the soft anti-collision sheet (12) is stretched between the two elongated airbags (11) under the tension of the two elongated airbags (11) to provide cushioning protection for the head and chest of the occupant to be protected.

2. The airbag according to claim 1, characterized in that: The first ends of the two long strip air bags (11) are connected via a connecting air bag (13), and the two long strip air bags (11) are connected to the connecting air bag (13) to form a connected U-shaped air bag.

3. The airbag according to claim 2, characterized in that: The connecting air bag (13) is used to be installed on the air bag installation position, so that the first end of the long strip air bag (11) can be installed on the air bag installation position through the connecting air bag (13).

4. The airbag according to claim 2, characterized in that: At least one supporting air bag (14) is connected between the two long strip air bags (11). The supporting air bag (14) is arranged adjacent to the soft anti-collision sheet (12). The two long strip air bags (11), the supporting air bag (14) and the connecting air bag (13) are connected to form a connected annular air bag. When the safety airbag is in an inflated and deployed state, the supporting air bag (14) opens the soft anti-collision sheet (12) by providing supporting force for the two long strip air bags (11).

5. The airbag according to any one of claims 1 to 4, characterized in that: The safety airbag is used to provide buffering protection for passengers on the rear seats (30), and the airbag installation position is arranged on the backrest of the seat (20) in the row before the rear seats (30).

6. The airbag according to claim 5, characterized in that: The long strip air bag (11) is in an inverted L shape as a whole; When the elongated airbag (11) is installed on the airbag installation position and the safety airbag is in an inflated and deployed state, the vertical section of the elongated airbag (11) extends from bottom to top along the backrest height of the front row of seats (20), and the bent section of the elongated airbag (11) relative to the vertical section bends and extends toward the head and chest of the rear row occupant.

7. The airbag according to claim 2, characterized in that: A gas generator (15) is fixedly provided inside the connecting air bag (13) for guiding the generated gas from the connecting air bag (13) to the long strip air bags (11) on both sides in the shape of the U-shaped air bag, thereby achieving inflation of the safety air bag. The gas generator (15) is used to be installed on the air bag installation position so that the connecting air bag (13) can be installed on the air bag installation position through the gas generator (15).

8. The airbag according to claim 6, characterized in that: The cross section of a section of the long strip air bag (11) bent toward the head and chest of the occupant is in a shape in which the height is greater than the width, and the height of the cross section of the vertical section of the long strip air bag (11) gradually increases from bottom to top.

9. A car, characterized in that: An airbag installation position is provided in the automobile, and a safety airbag according to any one of claims 1 to 8 is installed on the airbag installation position, wherein two elongated airbags (11) of the safety airbag are arranged at intervals along the width direction of the automobile, and a first end of the elongated airbag (11) is installed on the airbag installation position; When the safety airbag is in an inflated and deployed state, the second ends of the two elongated airbags (11) extend toward the head and chest of the occupant to be protected, and the soft anti-collision sheet (12) is stretched between the two elongated airbags (11) under the tension of the two elongated airbags (11) to provide cushioning protection for the head and chest of the occupant to be protected.

10. The automobile according to claim 9, characterized in that: The automobile is provided with multiple rows of seats, the airbag installation position is arranged on the seat back frame of the row of seats (20) in front of the protection seat, and the protection seat is the seat protected by the safety airbag.

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