CN216301022U - 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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- CN216301022U CN216301022U CN202121523241.6U CN202121523241U CN216301022U CN 216301022 U CN216301022 U CN 216301022U CN 202121523241 U CN202121523241 U CN 202121523241U CN 216301022 U CN216301022 U CN 216301022U
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- 230000005284 excitation Effects 0.000 claims abstract description 52
- 230000003044 adaptive effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000003313 weakening effect Effects 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 5
- 208000014674 injury Diseases 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a novel self-adaptive air bag vent hole structure, which comprises: one end of the exhaust cylinder is hermetically arranged on the exhaust hole of the air bag, and the interior of the exhaust cylinder is communicated with the exhaust hole; one end of the pull belt is connected with the other end of the exhaust cylinder; and the excitation device is connected with the other end of 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 novel self-adaptive air bag vent hole structure. The utility model can control the opening or closing of the exhaust cylinder body through the pull belt according to the actual condition to adjust the pressure in the air bag, so as to avoid the injury of the air bag to passengers with small weight or sitting posture in the unfolding process.
Description
Technical Field
The utility model relates to the technical field of automobile safety airbags, in particular to a novel self-adaptive air bag vent hole structure and an automobile safety airbag provided with the same.
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 needs very large gas pressure in the unfolding process, and has a certain protection effect on the people in the vehicle with normal weight and normal sitting posture. However, since the airbag is greatly impacted during the deployment, it is liable to cause injury to occupants having a small body weight or sitting posture, especially to drivers and occupants in the front row.
To this end, the applicant has sought, through useful research and research, a solution to the above-mentioned problems, in the context of which the technical solutions to be described below have been made.
SUMMERY OF THE UTILITY MODEL
One of the technical problems to be solved by the present invention is: aiming at the defects of the prior art, the novel self-adaptive air bag vent hole structure is provided, and the structure can adjust the output pressure in the air bag according to the actual condition so as to avoid the injury to passengers in the unfolding process.
The second technical problem to be solved by the present invention is: provides an automobile safety airbag provided with the novel self-adaptive air bag vent hole structure.
A novel adaptive air bag vent structure as a first aspect of the present invention comprises:
one end of the exhaust cylinder is hermetically arranged on the exhaust hole of the air bag, and the interior of the exhaust cylinder is communicated with the exhaust hole;
the air bag comprises an air bag body, a pull belt, a cover plate and a cover plate, wherein one end of the pull belt is connected with the other end of the air exhaust barrel body; and
the excitation device is connected with the other end of 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 exhaust cylinder has a tapered cylinder structure, and has a large port connected to the exhaust hole of the air bag and a small port connected to the pull belt.
In a preferred embodiment of the present invention, the exhaust cylinder is sewn from one cylinder side piece or from two cylinder side pieces.
In a preferred embodiment of the present invention, at least one air outlet is formed at a connection between the air discharge cylinder and the pull belt.
In a preferred embodiment of the present invention, the excitation device is a small gas generator, which includes an excitation housing, an igniter, and a separation sheet, an igniter installation chamber is formed in the excitation housing, an opening communicating with the igniter installation chamber is formed on one side end surface of the excitation housing, the igniter is installed in the excitation housing and connected to an automotive electronic control unit, the separation sheet is fixedly installed on the opening of the excitation housing, and the other end of the pull belt is fixedly connected to the separation sheet; when the igniter receives an ignition signal sent by an automobile electronic control unit, the igniter is ignited, so that high-temperature and high-pressure gas is formed in the excitation shell, and the separation sheet is pushed open under the action of the high-temperature and high-pressure gas, so that the pull belt is loosened.
In a preferred embodiment of the utility model, the separator sheet is provided with weakening grooves.
In a preferred embodiment of the utility model, the other end of the draw tape is fixed to the separator sheet by means of a screw or rivet.
An automobile airbag as a second aspect of the utility model includes:
an air bag housing;
an airbag fixing clip fixedly mounted on an inner bottom surface of the airbag housing;
a gas generator fixedly mounted within the airbag housing; and
folding an air bag mounted within the air bag housing; it is characterized in that the preparation method is characterized in that,
the novel self-adaptive air bag exhaust hole structure is also included.
In a preferred embodiment of the present invention, an excitation device mounting base is disposed on the inner bottom surface of the airbag housing, an excitation device fixing through hole is disposed at a position of the airbag fixing splint above the excitation device mounting base, and an excitation housing of an excitation device in the novel adaptive airbag vent structure is formed by combining an upper cylinder, a middle cylinder and a lower cylinder, wherein the diameter of the middle cylinder is greater than the diameters of the upper cylinder and the lower cylinder, and is also greater than the excitation device fixing through hole; during installation, the lower cylinder of the excitation shell is embedded in the excitation device installation base, the middle cylinder is located between the excitation device installation base and the excitation device fixing through hole, and the upper cylinder penetrates through the excitation device fixing through hole and then extends upwards.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that: the utility model can control the opening or closing of the exhaust cylinder body through the pull belt according to the actual condition to adjust the pressure in the air bag, so as to avoid the injury of the air bag to passengers with small weight or sitting posture in the unfolding process. The structure of the utility model has better reliability and better cost. The excitation device is simple and convenient to install, good in stability, free of adding redundant parts and lower in cost.
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 the drawings without creative efforts.
Fig. 1 is a schematic view of the novel adaptive air bag vent structure of the present invention in a closed state (vent cylinder 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 vent cylinder is not tensioned).
Fig. 3 is an enlarged partial schematic view of the novel adaptive air bag vent structure of the present invention in the closed position (vent cylinder tensioned).
Fig. 4 is an enlarged partial schematic view of the novel adaptive air bag vent structure of the present invention in the open position (vent cylinder not tensioned).
FIG. 5 is a schematic structural diagram of an embodiment of the exhaust stack of the present invention after deployment.
FIG. 6 is a schematic structural view of another embodiment of the exhaust stack of the present invention after deployment.
Fig. 7 is a schematic structural view of a further embodiment of the exhaust stack of the present invention after deployment.
FIG. 8 is an internal schematic view of an automotive airbag of the present invention.
Fig. 9 is a schematic internal cross-sectional view of an automobile airbag of the utility model.
Fig. 10 is a schematic back view of the inventive automobile airbag.
Fig. 11 is a schematic structural view of an airbag case of an automobile airbag of the utility model.
Fig. 12 is a schematic structural view of an airbag fixing clip of an automobile airbag of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.
Referring to fig. 1-4, a novel adaptive air bag vent structure 100 is shown comprising a vent cylinder 110, a pull strap 120, and an activation device 130.
One end of the exhaust cylinder 110 is hermetically disposed on the exhaust hole 510 of the air bag 500 and the inside thereof is communicated with the exhaust hole 510. The exhaust cylinder 110 has a tapered cylinder structure, and has a large end connected to the exhaust hole 510 of the air bag 500 and a small end connected to the draw tape 120.
One end of the drawstring 120 is connected with the other end of the exhaust cylinder 110, and two air outlets 111, 112 are formed at the connection between the drawstring 120 and the exhaust cylinder 110. Of course, the number of the air outlets is not limited to the number in the present embodiment, and it should be set according to the exhaust requirement. When the pulling tape 120 is pulled, the pulling tape 120 pulls the other end of the exhaust cylinder 110 into the air bag 500, and the other end of the exhaust cylinder 110 is in a closed state under the internal pressure of the air bag 500, that is, the air outlets 111 and 112 of the exhaust cylinder 110 are in a closed state, and the air in the air bag 500 cannot be discharged from the exhaust cylinder 110, as shown in fig. 3. When the pull tape 120 is released, the exhaust cylinder 110 is opened by the exhaust pressure and enters an open state, i.e., the air outlets 111 and 112 of the exhaust cylinder 110 are in an open state, and the air in the airbag 500 is exhausted through the exhaust cylinder 110. The present invention can control the opening or closing of the exhaust cylinder 110 through the pull strap 120 according to the actual situation to adjust the pressure in the airbag, so as to prevent the airbag 500 from causing injury to passengers with small weight or sitting posture during the unfolding process.
Referring to fig. 5, the exhaust cylinder 110 is sewn by a cylinder side piece 110a, and the exhaust cylinder 110 and the pull belt 120 are in an integrated structure; alternatively, referring to fig. 6, the exhaust cylinder 110 is sewn by a cylinder side piece 110b, and then the pull strap 120 is sewn with the sewn exhaust cylinder 110, and the exhaust cylinder 110 and the pull strap 120 are of a split structure; alternatively, referring to fig. 7, the exhaust cylinder 110 is sewn from two cylinder side pieces 110c and 110d, and the exhaust cylinder 110 and the cylinder side piece 110c are integrally formed, as shown in fig. 7.
The trigger device 130 is connected to the other end of the draw tape 120 and pulls the draw tape 120 taut, and when the trigger device 130 receives an ignition signal, the trigger device 130 is ignited, so that the draw tape 120 is released. Specifically, referring to fig. 8 and 9, the excitation device 130 is a small gas generator including an excitation housing 131, an igniter (not shown in the drawings), and a separation sheet 132. An igniter installation chamber is formed in the excitation shell 131, and an opening communicated with the igniter installation chamber is formed in the end face of one side of the excitation shell 131. The igniter is mounted within the ignition housing 131 and is connected to an automotive Electronic Control Unit (ECU). The separator 132 is fixedly installed on the opening of the excitation case 131, the other end of the pull strap 120 is fixedly connected to the separator 132 by means of a screw or a rivet 133, and the separator 132 is provided with a weak groove, so that the pull strap 120 is loosened during the detonation. When the automobile has a collision accident and the in-automobile sensor detects that a passenger with a small weight or sitting posture is present in the automobile, the Electronic Control Unit (ECU) of the automobile sends an ignition signal to the igniter of the excitation device 130, the igniter of the excitation device 130 is ignited, so that high-temperature high-pressure gas is formed in the excitation shell 131, the weak groove of the separation sheet 132 is pushed open under the action of the high-temperature high-pressure gas, and the pull belt 120 is loosened.
Referring to fig. 8 to 10, there is shown an airbag for a vehicle, which includes a novel adaptive airbag discharging hole structure 100, an airbag housing 200, an airbag fixing clip 300, a gas generator 400, and an airbag 500. The airbag housing 200 is made of a metal material, the airbag fixing clip 300 is fixedly mounted on the inner bottom surface of the airbag housing 200, the gas generator 400 is fixedly mounted in the airbag housing 200, and the airbag 500 is folded and mounted in the airbag housing 200.
Referring to fig. 11, an actuator mounting base 210 is opened on the inner bottom surface of the airbag housing 200. Referring to fig. 12, an actuating device fixing through hole 310 is formed at a position of the airbag fixing clip 300 above the actuating device mounting base 210, and the actuating device fixing through hole 310 is one of a circular hole, an elliptical hole, a square hole, or a special-shaped hole. The actuating housing 131 of the actuating device 130 in the novel adaptive air bag vent structure 100 is formed by combining an upper cylinder 131a, a middle cylinder 131b and a lower cylinder 131 c; wherein the diameter of the middle cylinder 131b is larger than the diameters of the upper cylinder 131a and the lower cylinder 131c, and is also larger than the excitation device fixing through hole 310. When the device is installed, the lower cylinder 131c of the excitation housing 131 is embedded in the excitation device mounting base 210, the middle cylinder 131b is located between the excitation device mounting base 210 and the excitation device fixing through hole 310, the upper cylinder 131a extends upward after passing through the excitation device fixing through hole 310, and the separation sheet 132 is fixedly disposed on the top surface of the upper cylinder 131 a.
The specific fixing and installation method of the excitation device 130 is as follows: since the airbag fixing plate 300 is disposed inside the airbag 500, the actuating unit 130 is inserted into the actuating unit fixing through-hole 310 of the airbag fixing plate 300 after passing through the airbag 500 from the bottom. Then, the airbag fixing splint 300 with the actuating means 130 mounted thereon is installed in the airbag housing 200 together with the airbag 500, and the lower cylinder 131c of the actuating means 130 is installed in the actuating means mounting base 210 of the airbag housing 200. The diameter of the middle cylinder 131b of the excitation device 130 is larger, so that the excitation device fixing through hole 310 of the airbag fixing splint 300 and the excitation device mounting base 210 of the airbag housing 200 can be vertically constrained, the fixing effect is achieved, the structural reliability is better, and the cost is better.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. A novel adaptive air bag vent structure, comprising:
one end of the exhaust cylinder is hermetically arranged on the exhaust hole of the air bag, and the interior of the exhaust cylinder is communicated with the exhaust hole;
the air bag comprises an air bag body, a pull belt, a cover plate and a cover plate, wherein one end of the pull belt is connected with the other end of the air exhaust barrel body; and
the excitation device is connected with the other end of 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 novel adaptive air bag vent structure according to claim 1, wherein the vent cylinder is a tapered cylinder structure having a large port connected to the vent hole of the air bag and a small port connected to the drawstring.
3. The novel adaptive air bag vent structure of claim 2, wherein the vent cylinder is sewn from one cylinder side piece or from two cylinder side pieces.
4. The novel adaptive air bag vent structure according to claim 2, wherein at least one air outlet is formed at the joint between the vent cylinder and the drawstring.
5. The novel adaptive air bag vent structure according to any one of claims 1 to 4, wherein the actuating device is a small gas generator comprising an actuating housing, an igniter and a separating sheet, an igniter mounting chamber is formed in the actuating housing, an opening communicating with the igniter mounting chamber is formed on one side end surface of the actuating housing, the igniter is mounted in the actuating housing and connected to an automotive electronic control unit, the separating sheet is fixedly mounted on the opening of the actuating housing, and the other end of the pull strip is fixedly connected to the separating sheet; when the igniter receives an ignition signal sent by an automobile electronic control unit, the igniter is ignited, so that high-temperature and high-pressure gas is formed in the excitation shell, and the separation sheet is pushed open under the action of the high-temperature and high-pressure gas, so that the pull belt is loosened.
6. The novel adaptive air bag vent structure according to claim 5, wherein the separator sheet is provided with a weakening groove.
7. The novel adaptive air bag vent structure of claim 5, wherein the other end of the pull strap is secured to the release sheet by a screw or rivet.
8. An automotive airbag comprising:
an air bag housing;
an airbag fixing clip fixedly mounted on an inner bottom surface of the airbag housing;
a gas generator fixedly mounted within the airbag housing; and
folding an air bag mounted within the air bag housing; it is characterized in that the preparation method is characterized in that,
further comprising a novel adaptive air bag vent structure as claimed in any one of claims 1 to 7.
9. The airbag of claim 8, wherein an actuator mounting base is formed on an inner bottom surface of the airbag housing, an actuator fixing through hole is formed at a position above the actuator mounting base of the airbag fixing clip, and an actuator housing of the actuator in the novel adaptive airbag venting structure is formed by combining an upper cylinder, a middle cylinder and a lower cylinder, wherein the diameter of the middle cylinder is larger than the diameters of the upper cylinder and the lower cylinder, and is also larger than the actuator fixing through hole; during installation, the lower cylinder of the excitation shell is embedded in the excitation device installation base, the middle cylinder is located between the excitation device installation base and the excitation device fixing through hole, and the upper cylinder penetrates through the excitation device fixing through hole and then extends upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121523241.6U CN216301022U (en) | 2021-07-06 | 2021-07-06 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121523241.6U CN216301022U (en) | 2021-07-06 | 2021-07-06 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
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| CN216301022U true CN216301022U (en) | 2022-04-15 |
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| CN202121523241.6U Active CN216301022U (en) | 2021-07-06 | 2021-07-06 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335221A (en) * | 2021-07-06 | 2021-09-03 | 上海东方久乐汽车安全气囊有限公司 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
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2021
- 2021-07-06 CN CN202121523241.6U patent/CN216301022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335221A (en) * | 2021-07-06 | 2021-09-03 | 上海东方久乐汽车安全气囊有限公司 | Novel self-adaptation air pocket exhaust hole structure and car air bag |
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