CN213228550U - Novel self-adaptation air pocket exhaust hole structure and car air bag - Google Patents
Novel self-adaptation air pocket exhaust hole structure and car air bag Download PDFInfo
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- CN213228550U CN213228550U CN202021446163.XU CN202021446163U CN213228550U CN 213228550 U CN213228550 U CN 213228550U CN 202021446163 U CN202021446163 U CN 202021446163U CN 213228550 U CN213228550 U CN 213228550U
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Abstract
The utility model discloses a novel self-adaptation air pocket exhaust hole structure, include: the support sheet is provided with an air exhaust hole; the blocking sheet is hermetically arranged on the supporting sheet, and a through hole corresponding to the exhaust hole of the supporting sheet is formed in the blocking sheet; the middle movable sheet is arranged between the supporting sheet and the blocking sheet; the pull belt is connected with the middle movable sheet; and the excitation device is connected with the pull belt and tensions the pull belt, and when the excitation device receives an ignition signal, the excitation device is ignited to enable the pull belt to be loosened. Also discloses an automobile safety airbag containing the structure. The utility model discloses the pressure in the regulation gas pocket is adjusted to opening or closing of activity piece in the middle of the accessible stretching strap control to passenger's safety in the protection car effectively.
Description
Technical Field
The utility model relates to an automobile safety airbag technical field especially relates to a novel self-adaptation air pocket exhaust hole structure and include the automobile safety airbag of this structure.
Background
The automobile safety air bag is one kind of safety device in passive safety restraint system for automobile and can be ignited instantaneously in case of collision accident to protect the safety of the passengers inside the automobile. An air bag, which is an important part in an automobile airbag, is filled with gas when the airbag is exploded, and separates a vehicle occupant from a steering wheel or an instrument panel, thereby protecting the safety of the vehicle occupant. The air bag requires very high air pressure in the process of unfolding, so that the air bag has a protective effect on passengers in a vehicle with normal weight and sitting posture, but the air bag can cause injury to the passengers in the process of unfolding due to the fact that the weight of some passengers is small or the sitting posture is not correct, and particularly the passengers and drivers in front rows can be injured.
The applicant has therefore made an advantageous search and attempt to solve the above-mentioned problems, in the context of which the technical solutions to be described below have been created.
SUMMERY OF THE UTILITY MODEL
The utility model discloses one of the technical problem that will solve lies in: aiming at the defects of the prior art, a novel self-adaptive air bag vent hole structure is provided, and the structure can adjust the output pressure in an air bag according to the actual condition so as to avoid the injury to passengers during the expansion.
The second technical problem to be solved in the present invention is: provides an automobile safety airbag containing the novel self-adaptive air bag vent structure.
As a first aspect of the present invention, an air bag vent structure includes:
the support sheet is provided with an air exhaust hole;
the blocking sheet is hermetically arranged on the supporting sheet, and a through hole corresponding to the exhaust hole of the supporting sheet is formed in the blocking sheet;
the middle movable sheet is arranged between the supporting sheet and the blocking sheet;
the pull belt is connected with the middle movable sheet, when the pull belt is tensioned, the middle movable sheet separates the exhaust hole from the through hole under the action of the tension of the pull belt, and when the pull belt is loosened, the middle movable sheet is blown away under the action of exhaust pressure, so that the exhaust hole is communicated with the through hole; and
the excitation device is connected with the pull belt and tensions the pull belt, and when the excitation device receives an ignition signal, the excitation device is ignited to enable the pull belt to be loosened.
In a preferred embodiment of the present invention, the support sheet is a side sheet of the airbag.
In a preferred embodiment of the present invention, the intermediate movable sheet is formed by stacking at least one layer of cloth.
In a preferred embodiment of the present invention, the middle movable plate is rectangular, one side edge of the middle movable plate along the length direction is fixed between the support plate and the blocking plate, and the other side edge of the middle movable plate along the length direction is fixedly connected to one end of the drawstring.
In a preferred embodiment of the present invention, a reinforcing wire is provided between the intermediate movable piece and the support piece and/or the blocking piece.
In a preferred embodiment of the present invention, the other side of the middle movable plate along the length direction is a semicircular arc.
In a preferred embodiment of the present invention, the middle movable plate is an isosceles triangle, the base thereof is fixed between the supporting plate and the blocking plate, and the vertex angle thereof is fixedly connected to one end of the drawstring.
In a preferred embodiment of the present invention, the excitation device is installed in a gas collecting box of a gas generator of an automobile airbag; when the automobile has a collision event and the sensor in the automobile detects that a passenger with small weight or a passenger with improper sitting posture exists in the automobile, the electronic control unit of the automobile sends an ignition signal to the excitation device, and the excitation device arranged in the gas collection box is ignited to enable the pull belt to be loosened.
As the utility model discloses the second aspect's an automobile safety air bag, including the gasbag module, be provided with above-mentioned novel self-adaptation air bag exhaust hole structure in the gasbag module.
Due to the adoption of the technical scheme, the beneficial effects of the utility model reside in that: the utility model discloses the pressure in the regulation gas pocket is adjusted to opening or closing of activity piece in the middle of the accessible stretching strap control to passenger's safety in the protection car effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the novel adaptive air bag vent structure of the present invention in a closed state (the middle movable plate is tensioned).
Fig. 2 is a schematic structural view of the novel adaptive air bag vent structure of the present invention in an open state (the middle movable plate is not tensioned).
Fig. 3 is a partially enlarged schematic view of the novel adaptive air bag vent structure of the present invention in a closed state (the middle movable plate is tensioned).
Fig. 4 is a partially enlarged schematic view of the novel adaptive airbag vent structure of the present invention in an open state (the middle movable plate is not tensioned).
Fig. 5 is a schematic structural view of another embodiment of the novel adaptive air bag vent structure of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1 to 4, there is shown a novel adaptive air bag vent structure including a support sheet 100, a barrier sheet 200, an intermediate movable sheet 300, a pull tab 400, and an actuating device 500.
The support plate 100 is provided with an exhaust hole 110, and the exhaust hole 110 may be a circular hole, a square hole or another hole. In the present embodiment, the support sheet 100 is preferably a side panel of the airbag 10. Of course, the support sheet 100 may also be a separate sheet.
The blocking sheet 200 is hermetically disposed on the supporting sheet 100, and in this embodiment, the blocking sheet 200 may be hermetically fixed by sewing or bonding, specifically, only the periphery of the blocking sheet 200 is connected to the supporting sheet 100, and the middle portion thereof is not connected, so as to facilitate the movement of the middle movable sheet 300 described below. The blocking plate 200 is formed with a through hole 210, and the through hole 210 corresponds to the exhaust hole 110 of the supporting plate 100, and may be a circular hole, a square hole or another hole.
The intermediate movable plate 300 is disposed between the support plate 100 and the barrier plate 200. In this embodiment, the intermediate movable sheet 300 is formed by laminating at least one layer of cloth. Referring to fig. 3 and 4, the middle movable panel 300 is rectangular, one side 301 of the middle movable panel in the length direction is fixed between the support panel 100 and the blocking panel 200, the other side 302 of the middle movable panel in the length direction is fixedly connected with one end of the pull strip 400, and a reinforcing wire 303 is arranged between the middle movable panel 300 and the support panel 100 and/or the blocking panel 200 to prevent the middle movable panel 300 from being blown out of the airbag 10 by the air in the airbag in the closed state. The other side 302 of the middle movable plate 300 (the side connected to the pull belt 400) in the longitudinal direction is in a semicircular arc shape.
Referring to fig. 5, there is shown another embodiment of the novel adaptive air bag vent structure, in which the middle movable plate 300a is an isosceles triangle, the base 301a thereof is fixed between the support plate 100a and the blocking plate 200a, the remaining two side edges are movable, and the vertex 302a thereof is fixedly connected to one end of the pull strip 400. The blocking piece 200a is also isosceles triangle, and one circle of the blocking piece 200a is sewed on the supporting piece 100a to clamp the middle movable piece 300a therein.
One end of the pull belt 400 is connected to the middle movable plate 300, and the other end thereof passes through the small hole 12 of the air bag 10 to be connected to the actuating means 500. When the drawstring 400 is tensioned, the middle movable sheet 300 separates the exhaust hole 110 of the support sheet 100 from the through hole 210 of the barrier sheet 200 under the tension of the drawstring 400, preventing the gas in the air bag 10 from being exhausted; when the pull strap 400 is released, the middle movable panel 300 is blown open by the exhaust pressure, so that the exhaust hole 110 of the support panel 100 communicates with the through hole 210 of the barrier panel 200, so that the gas in the airbag 10 is exhausted, and the pressure of the airbag 10 is adjusted.
The excitation device 500 is installed in the gas collecting box 20 of the automobile airbag, and in a normal state, the excitation device 500 is connected with the drawstring 400 and tensions the drawstring 400, and at this time, the middle movable sheet 300 separates the exhaust holes 110 of the support sheet 100 from the through holes 210 of the barrier sheet 200 under the tensile force of the drawstring 400. When the automobile has a collision accident and the in-automobile sensor detects that a passenger with a small weight or a passenger with an improper sitting posture exists in the automobile, the Electronic Control Unit (ECU) of the automobile sends an ignition signal to the excitation device 500, the excitation device 500 installed in the gas collecting box 20 is ignited, so that the pull belt 400 is loosened, and at the moment, the middle movable plate 300 is blown away under the action of the exhaust pressure, so that the exhaust holes 110 of the support plate 100 are communicated with the through holes 210 of the blocking plate 200. In the present embodiment, the excitation device 500 is preferably a small gas generator (MGG) composed of an ignition device and a housing. The pull belt 400 penetrates through the interior of the shell through holes in two side walls of the shell, and a weak groove is formed in the tail end of the shell; when the ignition device receives an ignition signal, the ignition device is ignited, the weak groove at the tail end is opened by the high-temperature and high-pressure gas in the shell, and meanwhile, the pull belt 400 penetrating through the shell is opened, so that the pull belt 400 is loosened from the excitation device 500.
The utility model discloses a novel self-adaptation air pocket exhaust hole structure's theory of operation as follows:
referring to fig. 3, the middle movable plate 300 is placed on the support plate 100, the blocking plate 200 is placed on the middle movable plate 300, and then the middle movable plate 300, the support plate 100 and the blocking plate 200 are sewn together. Wherein, the middle movable sheet 300 is only sewn with one edge 301, the other edges are movable, and a reinforcing line 303 can be respectively sewn on the two sides of the edge 301, so as to prevent the middle movable sheet 300 from being blown out of the air bag 10 by the air in the air bag when in a closed state. Then, the pull strip 400 of the middle movable plate 300 is passed through the small hole 12 of the air bag 10 and fixed on the actuating device 500 in the air collecting box 20. The pulling strap 400 pulls the middle movable plate 300 tightly, and when the gas in the air bag 10 expands outwards, the middle movable plate 300 is pressed against the supporting plate 100, and the air bag vent hole structure is in a closed state.
When the automobile has a collision accident, if the passenger is in a normal state, referring to fig. 1, the drawstring 400 in the air bag vent structure in the air bag module is in a tensioned state, and the middle movable sheet 300 blocks the vent hole 110 of the support sheet 100 from the through hole 210 of the blocking sheet 200, so that the gas in the air bag 10 is prevented from flowing out, and the passenger can be protected normally. Referring to fig. 2, if the weight of the passenger is small or the sitting posture is not correct, an Electronic Control Unit (ECU) of the vehicle sends an ignition signal to ignite an actuating device 500 installed in the gas collecting box 20, so that the drawstring 400 is released, and then the middle movable plate 300 is blown open by the exhaust pressure under the action of the pressure of the outward expansion of the gas in the gas bag 10, the gas in the gas bag 10 is exhausted, and the pressure in the gas bag 10 is reduced, thereby protecting the passenger from being injured.
The utility model discloses a novel self-adaptation air pocket exhaust hole structure can use at car air bag, and it is installed in car air bag's gasbag module.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A novel adaptive air bag vent structure, comprising:
the support sheet is provided with an air exhaust hole;
the blocking sheet is hermetically arranged on the supporting sheet, and a through hole corresponding to the exhaust hole of the supporting sheet is formed in the blocking sheet;
the middle movable sheet is arranged between the supporting sheet and the blocking sheet;
the pull belt is connected with the middle movable sheet, when the pull belt is tensioned, the middle movable sheet separates the exhaust hole from the through hole under the action of the tension of the pull belt, and when the pull belt is loosened, the middle movable sheet is blown away under the action of exhaust pressure, so that the exhaust hole is communicated with the through hole; and
the excitation device is connected with the pull belt and tensions the pull belt, and when the excitation device receives an ignition signal, the excitation device is ignited to enable the pull belt to be loosened.
2. The air bag vent structure of claim 1, wherein the support sheet is a side panel of an air bag.
3. The air bag vent structure of claim 1, wherein the intermediate flexible sheet is constructed of at least one ply of fabric laminated together.
4. The air bag vent structure of claim 1, wherein the intermediate movable panel is rectangular, one side edge of which in the length direction is fixed between the support panel and the blocking panel, and the other side edge of which in the length direction is fixedly connected to one end of the pull strap.
5. The air bag vent structure of claim 4, wherein a reinforcing wire is provided between the intermediate movable panel and the support panel and/or the barrier panel.
6. The air bag vent structure of claim 4, wherein the other side of the intermediate movable panel in the length direction is in a semicircular arc shape.
7. The air bag vent structure of claim 1, wherein the intermediate movable panel is an isosceles triangle having a base secured between the support panel and the barrier panel and a vertex fixedly attached to one end of the pull strap.
8. An air bag vent structure according to any of claims 1 to 7, wherein the actuating means is mounted in a plenum box of a gas generator of an automotive air bag; when the automobile has a collision event and the sensor in the automobile detects that a passenger with small weight or a passenger with improper sitting posture exists in the automobile, the electronic control unit of the automobile sends an ignition signal to the excitation device, and the excitation device arranged in the gas collection box is ignited to enable the pull belt to be loosened.
9. An automotive airbag comprising an airbag module, characterized in that an airbag vent structure according to any of claims 1 to 8 is provided in the airbag module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446163.XU CN213228550U (en) | 2020-07-21 | 2020-07-21 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021446163.XU CN213228550U (en) | 2020-07-21 | 2020-07-21 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213228550U true CN213228550U (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021446163.XU Active CN213228550U (en) | 2020-07-21 | 2020-07-21 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213228550U (en) |
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2020
- 2020-07-21 CN CN202021446163.XU patent/CN213228550U/en active Active
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