CN210502596U - Variable vent structure of automobile safety air bag - Google Patents
Variable vent structure of automobile safety air bag Download PDFInfo
- Publication number
- CN210502596U CN210502596U CN201920892569.1U CN201920892569U CN210502596U CN 210502596 U CN210502596 U CN 210502596U CN 201920892569 U CN201920892569 U CN 201920892569U CN 210502596 U CN210502596 U CN 210502596U
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- air bag
- air pocket
- gas generator
- exhaust hole
- pressure
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Abstract
The utility model discloses a variable exhaust hole structure of car air bag, including gas generator and metal casing, gas generator's both sides all set up with metal casing's inner wall is fixed, gas generator's the back is provided with the connecting piece, the inner chamber packing of connecting piece has the air pocket. The utility model discloses a set up the exhaust hole, the double-deck body of annular, the structural design of nylon rope and metal casing, when pressure in the air pocket risees fast, the size in exhaust hole can be along with the rising and the grow of air pocket internal pressure, in time discharge unnecessary gas in the air pocket, then along with the pressure in the air pocket reduces gradually, the size in exhaust hole can reduce gradually, reach a saturation steady state, reduce when the air pocket volume, pressure keeps unchangeable, the gas stabilization discharges, the exhaust hole changes along with air pocket internal pressure, make air pocket energy-absorbing process keep a pressure release steady state, thereby the effect with adjustable pressure release speed has been reached, thereby human safe effect has been improved.
Description
Technical Field
The utility model relates to an automobile safety air bag technical field specifically is automobile safety air bag's variable exhaust hole structure.
Background
The safety airbag working principle is that a generator generates a large amount of gas to fill an airbag, and in order to achieve a good protection effect of the safety airbag, the ideal state that people want is that the gas in the airbag keeps a saturated stable state before contacting the airbag, and after people contact the airbag, the gas in the airbag is in a pressure relief stable state to achieve the energy absorption effect that people want.
The pressure relief speed of the constant vent hole is not adjustable, if the gas molar quantity generated by the generator is in a low limit in a low-temperature state, when the air bag is inflated, the pressure relief speed of the vent hole is too high, the air bag is possibly in an unsaturated state when being filled, and the gas molar quantity generated by the generator is in a high limit in a high-temperature state, the air bag is in an oversaturated state when being filled, but the pressure relief speed of the vent hole cannot keep up with the pressure relief speed, so that the internal pressure of the air bag is increased, and the condition of expanding and cracking the sewing thread of the air bag can occur.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a variable exhaust hole structure of car air bag possesses the adjustable advantage of pressure release speed, has solved the invariable exhaust hole of current air bag and has had the nonadjustable problem of pressure release speed.
In order to achieve the above object, the utility model provides a following technical scheme: the gas generator comprises a gas generator and a metal shell, wherein the two sides of the gas generator are fixedly arranged on the inner wall of the metal shell, a connecting piece is arranged on the back surface of the gas generator, an air bag is filled in the inner cavity of the connecting piece, an exhaust hole is formed in the front surface of the air bag and the joint of the gas generator, an annular double-layer body is annularly sewn on the front surface of the air bag, and a nylon rope is annularly sewn on the front surface of the annular double-layer body.
Preferably, the periphery of the metal shell is fixedly connected with the back of the gas generator through mounting screws, and the inner cavity of the metal shell is embedded with the surface of the gas bag.
Preferably, the periphery of the air bag is fixedly provided with fixing rings at the connecting parts with the connecting pieces, and the fixing rings are L-shaped.
Preferably, the connecting piece is concave, and the surface of the connecting piece is embedded in the automobile body.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a set up the exhaust hole, the double-deck body of annular, the structural design of nylon rope and metal casing, when pressure in the air pocket risees fast, the size in exhaust hole can be along with the rising of air pocket internal pressure and grow, in time discharge unnecessary gas in the air pocket, then along with the pressure in the air pocket reduces gradually, the size in exhaust hole can reduce gradually, reach a saturated stable state, reduce when the air pocket volume, pressure keeps unchangeable, the gas stabilization discharges, the exhaust hole changes along with air pocket internal pressure, make air pocket energy-absorbing process keep a pressure release stable state, thereby reached the effect that pressure release speed is adjustable, the problem that current air bag invariable exhaust hole exists pressure release speed unadjustable has been solved, thereby human safety effect has been improved.
2. The utility model has the advantages that the threaded installation of the metal shell is arranged, so that the effect of convenient assembly and disassembly between the air bag and the gas generator is achieved;
the fixing ring is arranged to be L-shaped, so that the stability of the air bag when the air bag is not unfolded is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view showing the airbag of the present invention;
FIG. 3 is a side view of the air bag of the present invention;
FIG. 4 is a front view of the air bag of the present invention in an open state;
fig. 5 is a schematic view of the working principle of the present invention.
In the figure: 1 gas generator, 2 connecting pieces, 3 gas bags, 4 exhaust holes, 5 annular double-layer bodies, 6 nylon ropes and 7 metal shells.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-5, the variable vent structure of an automobile airbag includes a gas generator 1 and a metal housing 7, both sides of the gas generator 1 are fixedly disposed with an inner wall of the metal housing 7, a connecting member 2 is disposed on a back surface of the gas generator 1, the connecting member 2 is concave, a surface of the connecting member 2 is embedded with an inside of an automobile body, an air bag 3 is filled in an inner cavity of the connecting member 2, a periphery of the metal housing 7 is fixedly connected with a back surface of the gas generator 1 by mounting screws, an inner cavity of the metal housing 7 is embedded with a surface of the air bag 3, the air bag 3 and the gas generator 1 are conveniently disassembled and assembled by arranging a screw thread of the metal housing 7, fixing rings are fixedly disposed at junctions of the periphery of the air bag 3 and the connecting member 2, the fixing rings are L-shaped, and the fixing rings are L-shaped, the stability of the air bag 3 when the air bag is not unfolded is improved, the vent hole 4 is arranged at the joint of the front surface of the air bag 3 and the gas generator 1, the annular double-layer body 5 is annularly sewn on the front surface of the air bag 3, the nylon rope 6 is annularly sewn on the front surface of the annular double-layer body 5, through the structural design of the vent hole 4, the annular double-layer body 5, the nylon rope 6 and the metal shell 7, when the pressure in the air bag 3 is rapidly increased, the size of the vent hole 4 is increased along with the increase of the internal pressure of the air bag 3, the redundant gas in the air bag 3 is timely discharged, then along with the gradual decrease of the internal pressure of the air bag 3, the size of the vent hole 4 is gradually reduced to achieve a saturated stable state, when the volume of the air bag 3 is reduced, the pressure is kept unchanged, the gas is stably discharged, the vent hole 4 is changed along with the, thereby reached pressure release speed adjustable effect, solved current air bag invariable exhaust hole and had the not adjustable problem of pressure release speed to human safe effect has been improved.
When the air bag is used, the vent hole 4 is smaller at the initial stage of the air bag 3 unfolding, the air bag 3 can be unfolded quickly, when the pressure in the air bag 3 rises quickly, the size of the vent hole 4 can be increased along with the rise of the internal pressure of the air bag 3, redundant gas in the air bag 3 is discharged in time, then the size of the vent hole 4 can be reduced gradually along with the gradual reduction of the internal pressure of the air bag 3 until a saturated stable state is reached, after a person contacts the air bag 3, the air bag 3 can quickly absorb the energy of the impact on the human body, the size of the air bag 3 is reduced, the pressure is kept unchanged, the gas is discharged stably, the vent hole 4 is changed along with the internal pressure of the air bag 3, the energy absorption process of the air bag 3 is kept in a pressure relief stable state as.
In summary, the following steps: this automobile air bag's variable exhaust hole structure through exhaust hole 4, the double-deck body of annular 5, nylon rope 6 and metal casing 7's structural design, has solved the invariable exhaust hole of current air bag and has had the not adjustable problem of pressure release speed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. Automobile air bag's variable exhaust hole structure, including gas generator (1) and metal casing (7), its characterized in that: the gas generator is characterized in that the two sides of the gas generator (1) are fixedly arranged with the inner wall of the metal shell (7), the connecting piece (2) is arranged on the back face of the gas generator (1), the air bag (3) is filled in the inner cavity of the connecting piece (2), the exhaust hole (4) is formed in the joint of the front face of the air bag (3) and the gas generator (1), the front face of the air bag (3) is annularly sewn with an annular double-layer body (5), and the front face of the annular double-layer body (5) is annularly sewn with a nylon rope (6).
2. The variable vent structure of an airbag for an automobile according to claim 1, wherein: the periphery of the metal shell (7) is fixedly connected with the back of the gas generator (1) through mounting screws, and the inner cavity of the metal shell (7) is embedded with the surface of the gas bag (3).
3. The variable vent structure of an airbag for an automobile according to claim 1, wherein: the periphery of the air bag (3) is fixedly provided with fixing rings at the connecting parts of the connecting pieces (2), and the fixing rings are L-shaped.
4. The variable vent structure of an airbag for an automobile according to claim 1, wherein: the connecting piece (2) is concave, and the surface of the connecting piece (2) is embedded in the automobile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920892569.1U CN210502596U (en) | 2019-06-14 | 2019-06-14 | Variable vent structure of automobile safety air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920892569.1U CN210502596U (en) | 2019-06-14 | 2019-06-14 | Variable vent structure of automobile safety air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210502596U true CN210502596U (en) | 2020-05-12 |
Family
ID=70578480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920892569.1U Active CN210502596U (en) | 2019-06-14 | 2019-06-14 | Variable vent structure of automobile safety air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210502596U (en) |
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2019
- 2019-06-14 CN CN201920892569.1U patent/CN210502596U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230419 Address after: No. 21 Yanyubang Road, Caohu Street, Xiangcheng District, Suzhou City, Jiangsu Province, 215100 Patentee after: Suzhou Shimai Changqing Automobile Safety Technology Co.,Ltd. Address before: 215000 79 Caohu Avenue, Xiangcheng economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: TAIHANGCHANGQING AUTOMOBILE SAFETY SYSTEM CO.,LTD. |
|
| TR01 | Transfer of patent right |