CN205615467U - Knee protection gas generator for air bag - Google Patents
Knee protection gas generator for air bag Download PDFInfo
- Publication number
- CN205615467U CN205615467U CN201620344740.1U CN201620344740U CN205615467U CN 205615467 U CN205615467 U CN 205615467U CN 201620344740 U CN201620344740 U CN 201620344740U CN 205615467 U CN205615467 U CN 205615467U
- Authority
- CN
- China
- Prior art keywords
- combustion
- gas generator
- housing
- accordance
- adapter sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Air Bags (AREA)
Abstract
The utility model relates to a gas generator technical field discloses a knee protection gas generator for air bag, which comprises a housin, the one end of casing is equipped with squib holder, the other end of casing is equipped with the adapter sleeve, be equipped with the combustion chamber in the casing, be equipped with in the combustion chamber and produce the gas medicine, be equipped with ignition tube in the squib holder, be equipped with venthole a plurality of and the combustion chamber intercommunication on the side of adapter sleeve, the inner of adapter sleeve is passed through the aluminium foil and is kept apart with the combustion chamber, the inner of squib holder is equipped with combustion -supporting pipe, the bottom of combustion -supporting pipe is equipped with the inlet port that communicates with the combustion chamber, be equipped with the aluminium foil that is used for sealing the inlet port on the interior bottom surface of combustion -supporting pipe, combustion -supportingly intraductal be equipped with combustion -supporting medicine, it is equipped with the pressure spring to produce between gas medicine and the combustion -supporting pipe, the pressure spring is close to the one end of producing the gas medicine at it and extends the formation coil spring. Producing the gas medicine and compressing tightly the location through pressure spring, coil spring, produce and can not shake each other, rub between the gas medicine, the difficult piece that produces uses stable more, safety.
Description
Technical field
This utility model relates to gas generator technology field, particularly relates to a kind of knee protective gas generator for safety air sac.
Background technology
Air bag is very important safety device on automobile, and when automobile has an accident, gas generator is to airbag inflated, it is possible to effectively reduces the accident injury to human body, thus protects the life security of driver and motroist.Common gas generator principle is all igniter (ignitron) igniting, and combustion-supporting medicine burns and gas generant composition in accordance of igniting, and produces a large amount of gas after gas generant composition in accordance burning, thus to airbag aeration.But the gas generant composition in accordance in common gas generator is only to be filled in combustor, gas generant composition in accordance lacks location, gas generant composition in accordance is graininess cylinder, along with the traveling of vehicle shakes, gas generant composition in accordance can be rocked in combustor, collides, be rubbed, thus causes gas generant composition in accordance grain breakage to produce powder, and the gap between gas generant composition in accordance is filled by powder and caused gas generant composition in accordance efficiency of combustion to reduce, and gas generant composition in accordance powder friction easily burns, and there is potential safety hazard.
Such as Chinese Patent Application No. is CN201520453989.1, filing date on June 29th, 2015, and open a kind of automobile safety air bag gas generator, including shell, gas generant composition in accordance, ignitron, fixture and automatic ignition medicine；Enclosure forms airtight combustor；Gas generant composition in accordance and ignitron may be contained within the combustor of shell；Fixture is positioned at described combustor, and is fixed on outer casing inner wall；Fixture is internally formed lock chamber, and fixture has multiple connection lock chamber and the mesh of combustor；Automatic ignition medicine is arranged at the interior lock chamber of described fixture.Gas generant composition in accordance in this kind of gas generator is only simply to be filled in combustor, and gas generant composition in accordance lacks location, is susceptible to friction and produces chip, thus affect the burning of gas generant composition in accordance between gas generant composition in accordance.
Utility model content
This utility model is in order to solve the above-mentioned problems in the prior art, it is provided that gas generant composition in accordance can be positioned by one, reduces between gas generant composition in accordance because shaking, rubbing and produce chip, improves the gas generator of overall security.
To achieve these goals, this utility model adopts the following technical scheme that
A kind of knee protective gas generator for safety air sac, including housing, one end of described housing is provided with igniting base, the other end of described housing is provided with adapter sleeve, combustor it is provided with in housing, gas generant composition in accordance it is provided with in combustor, it is provided with ignitron in igniting base, the side of adapter sleeve is provided with some and combustion chamber venthole, aluminium foil and combustion chamber isolated are passed through in the inner of described adapter sleeve, the inner of described igniting base is provided with combustion tube, the bottom of described combustion tube is provided with the air inlet with combustion chamber, the inner bottom surface of described combustion tube is provided with the aluminum paper tinsel for closing air inlet, combustion-supporting medicine it is provided with in described combustion tube, it is provided with stage clip between described gas generant composition in accordance and combustion tube, at it, near one end of gas generant composition in accordance, extension forms disc spring to described stage clip.Gas generant composition in accordance stops spacing by disc spring, is then compressed by stage clip so that shake between gas generant composition in accordance, rub minimizing, improve gas generator safety；The High Temperature Gas physical ability produced after the burning of combustion-supporting medicine is ignited gas generant composition in accordance through disc spring.
As preferably, the outside of described combustion tube is provided with cannelure, and the inwall of described housing is provided with and the annular boss of cannelure snap-fit engagement.Combustion tube is spacing with cannelure by annular boss, and assembling is simple, low cost.
As preferably, the outer wall of described igniting base is provided with positioning convex ring, and the end of described housing is provided with for the spacing choke of positioning convex ring；It is provided with sealing ring between described positioning convex ring and inner walls.Positioning convex ring is carried out spacing by choke, simplifies the assembling mode of ignitron.
As preferably, the inner being positioned at adapter sleeve in described housing is provided with cushion collar, forms annular gap between described cushion collar and housing, and the side of described cushion collar is provided with some throttle orifices.Gas generant composition in accordance burning produces a large amount of gases, and gas through throttle orifice, is finally discharged from venthole behind annular gap, and the air-flow discharged from venthole is more stable.
As preferably, the bottom surface of described cushion collar is provided with locating dowel, and described locating dowel is arranged with circular filter net.Locating dowel positions for circular filter net, and the gas produced after gas generant composition in accordance burning can filter out waste residue through circular filter net, and circular filter net has cooling effect to gas simultaneously.
As preferably, in described combustion tube, it is provided with desiccant.Desiccant is used for keeping combustion-supporting medicine to be dried.
In this utility model, gas generant composition in accordance compresses location by stage clip, disc spring, will not mutually shake, rubs between gas generant composition in accordance, is not likely to produce chip, uses more stable, safety.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
In figure: housing 1, igniting base 2, adapter sleeve 3, combustor 4, gas generant composition in accordance 5, ignitron 6, venthole 7, aluminium foil 8, combustion tube 9, air inlet 10, combustion-supporting medicine 11, stage clip 12, disc spring 13, cushion collar 14, annular gap 15, throttle orifice 16, locating dowel 17, circular filter net 18, positioning convex ring 20, sealing ring 21, cannelure 90, annular boss 100, choke 101.
Detailed description of the invention
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings:
A kind of knee protective gas generator for safety air sac as shown in Figure 1, including housing 1, one end of housing is provided with igniting base 2, the other end of housing is provided with adapter sleeve 3, combustor 4 it is provided with in housing, gas generant composition in accordance 5 it is provided with in combustor, it is provided with ignitron 6 in igniting base, the side of adapter sleeve is provided with some and combustion chamber venthole 7, aluminium foil 8 and combustion chamber isolated are passed through in the inner of adapter sleeve 3, the inner of igniting base is provided with combustion tube 9, the bottom of combustion tube is provided with the air inlet 10 with combustion chamber, the inner bottom surface of combustion tube is provided with the aluminium foil 8 for closing air inlet, combustion-supporting medicine 11 it is provided with in combustion tube, desiccant it is provided with in combustion tube, stage clip 12 it is provided with between gas generant composition in accordance 5 and combustion tube, at it, near one end of gas generant composition in accordance, extension forms disc spring 13 to stage clip；The inner being positioned at adapter sleeve in housing 1 is provided with cushion collar 14, forms annular gap 15 between cushion collar 14 and housing, and the side of cushion collar 14 is provided with some throttle orifices 16, and the bottom surface of cushion collar is provided with locating dowel 17, and locating dowel is arranged with circular filter net 18.
The outside of combustion tube 9 is provided with cannelure 90, and the inwall of housing 1 is provided with the annular boss 100 with cannelure snap-fit engagement, and the outer wall of igniting base 2 is provided with positioning convex ring 20, and housing 1 end is provided with for the spacing choke 101 of positioning convex ring；Sealing ring 21 it is provided with between positioning convex ring 20 and inner walls.
In conjunction with accompanying drawing, principle of the present utility model is as follows: ignitron is lighted a fire, combustion-supporting medicine in combustion tube is ignited rear aerogenesis, gas enters in combustor after breaking through the aluminium foil bottom combustion tube, thus the gas generant composition in accordance in combustor is lighted, gas generant composition in accordance produces a large amount of gas after lighting, gas breaks through the aluminium foil that adapter sleeve is inner, and a large amount of gases are stably discharged from venthole after circular filter net, annular gap, throttle orifice；By stage clip, disc spring, the gas generant composition in accordance in combustor being compressed, positioned in this structure, thus prevent gas generant composition in accordance vibrations, friction and produce chip, whole gas generator is safer.
Claims (6)
1. a knee protective gas generator for safety air sac, including housing, one end of described housing is provided with igniting base, the other end of described housing is provided with adapter sleeve, combustor it is provided with in housing, gas generant composition in accordance it is provided with in combustor, it is provided with ignitron in igniting base, the side of adapter sleeve is provided with some and combustion chamber venthole, aluminium foil and combustion chamber isolated are passed through in the inner of described adapter sleeve, it is characterized in that, the inner of described igniting base is provided with combustion tube, the bottom of described combustion tube is provided with the air inlet with combustion chamber, the inner bottom surface of described combustion tube is provided with the aluminum paper tinsel for closing air inlet, combustion-supporting medicine it is provided with in described combustion tube, it is provided with stage clip between described gas generant composition in accordance and combustion tube, at it, near one end of gas generant composition in accordance, extension forms disc spring to described stage clip.
A kind of knee protective gas generator for safety air sac the most according to claim 1, is characterized in that, the outside of described combustion tube is provided with cannelure, and the inwall of described housing is provided with and the annular boss of cannelure snap-fit engagement.
A kind of knee protective gas generator for safety air sac the most according to claim 1 and 2, is characterized in that, the outer wall of described igniting base is provided with positioning convex ring, and the end of described housing is provided with for the spacing choke of positioning convex ring；It is provided with sealing ring between described positioning convex ring and inner walls.
A kind of knee protective gas generator for safety air sac the most according to claim 1; it is characterized in that; the inner being positioned at adapter sleeve in described housing is provided with cushion collar, forms annular gap between described cushion collar and housing, and the side of described cushion collar is provided with some throttle orifices.
A kind of knee protective gas generator for safety air sac the most according to claim 4, is characterized in that, the bottom surface of described cushion collar is provided with locating dowel, and described locating dowel is arranged with circular filter net.
A kind of knee protective gas generator for safety air sac the most according to claim 1, is characterized in that, be provided with desiccant in described combustion tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344740.1U CN205615467U (en) | 2016-04-24 | 2016-04-24 | Knee protection gas generator for air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344740.1U CN205615467U (en) | 2016-04-24 | 2016-04-24 | Knee protection gas generator for air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205615467U true CN205615467U (en) | 2016-10-05 |
Family
ID=57028195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620344740.1U Active CN205615467U (en) | 2016-04-24 | 2016-04-24 | Knee protection gas generator for air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205615467U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146383A (en) * | 2017-12-21 | 2018-06-12 | 湖北航天化学技术研究所 | A kind of tablet, gas generator and gas generating equipment |
| CN110294087A (en) * | 2019-07-04 | 2019-10-01 | 湖北航鹏化学动力科技有限责任公司 | A kind of air inflation raft gas generator |
| CN112061072A (en) * | 2020-08-13 | 2020-12-11 | 均胜汽车安全系统(湖州)有限公司 | Gas generator capable of reducing influence of ambient temperature on performance |
| CN112109657A (en) * | 2020-08-13 | 2020-12-22 | 均胜汽车安全系统(湖州)有限公司 | Low-cost high-output columnar pyrotechnic safety airbag gas generator |
| CN112657078A (en) * | 2021-01-10 | 2021-04-16 | 湖北航鹏化学动力科技有限责任公司 | Intelligent window breaking device |
| CN114030440A (en) * | 2021-12-02 | 2022-02-11 | 湖北航天化学技术研究所 | Gas generator |
| CN114084094A (en) * | 2021-10-26 | 2022-02-25 | 湖北航天化学技术研究所 | Low-cost columnar safety airbag gas generator |
-
2016
- 2016-04-24 CN CN201620344740.1U patent/CN205615467U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108146383A (en) * | 2017-12-21 | 2018-06-12 | 湖北航天化学技术研究所 | A kind of tablet, gas generator and gas generating equipment |
| CN108146383B (en) * | 2017-12-21 | 2020-02-07 | 湖北航天化学技术研究所 | Tablet, gas generator and gas generating equipment |
| CN110294087A (en) * | 2019-07-04 | 2019-10-01 | 湖北航鹏化学动力科技有限责任公司 | A kind of air inflation raft gas generator |
| CN110294087B (en) * | 2019-07-04 | 2024-07-09 | 湖北航鹏化学动力科技有限责任公司 | Gas generator for inflatable life raft |
| CN112061072A (en) * | 2020-08-13 | 2020-12-11 | 均胜汽车安全系统(湖州)有限公司 | Gas generator capable of reducing influence of ambient temperature on performance |
| CN112109657A (en) * | 2020-08-13 | 2020-12-22 | 均胜汽车安全系统(湖州)有限公司 | Low-cost high-output columnar pyrotechnic safety airbag gas generator |
| CN112657078A (en) * | 2021-01-10 | 2021-04-16 | 湖北航鹏化学动力科技有限责任公司 | Intelligent window breaking device |
| CN114084094A (en) * | 2021-10-26 | 2022-02-25 | 湖北航天化学技术研究所 | Low-cost columnar safety airbag gas generator |
| CN114030440A (en) * | 2021-12-02 | 2022-02-11 | 湖北航天化学技术研究所 | Gas generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205615467U (en) | Knee protection gas generator for air bag | |
| CN104870263B (en) | Dual ignition formula gas generator | |
| JP6009997B2 (en) | Gas generator for personnel restraint system | |
| US5876062A (en) | Airbag inflator with direct electrical ignition for small sized gas generant bodies | |
| DE602005000573D1 (en) | Two-stage pyrotechnic gas generator | |
| JP6937590B2 (en) | Hybrid inflators, airbag units with such hybrid inflators and vehicle safety systems, and methods of forming shock waves. | |
| CN104245437A (en) | Gas generator | |
| JP2009119893A (en) | Gas generator | |
| CN103298663B (en) | Gas generator | |
| CN107264463A (en) | A kind of columnar gas generator architecture | |
| CN206954171U (en) | A kind of small-sized pyrotechnic airbag gas generator of column | |
| CN105644491A (en) | Inflatable gas generator capable of achieving secondary delayed detonation | |
| US3853332A (en) | Porous diffuser for gas supply to passenger restraint | |
| CN100581881C (en) | Gas generator | |
| CN204956395U (en) | Miniaturized formula gasbag gas generator that moulds plastics | |
| JP2005521582A5 (en) | ||
| CN101746344A (en) | Twin-stage type gas generator | |
| CN110139781A (en) | Inflator | |
| CN202541476U (en) | Hybrid gas generator for safety air bag | |
| CN210554658U (en) | Gas generator for safety air bag | |
| CN205615470U (en) | High -efficient cooled gas generator | |
| JP2005523195A5 (en) | ||
| CN201161579Y (en) | Gas generator | |
| JPH06509300A (en) | Vertical airbag gas generator | |
| CN205615464U (en) | Two -way formula gas generator that ignites |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 313104 Changxing County Agricultural Institute, Zhejiang Patentee after: Jun Sheng automotive safety system (Changxin) Co., Ltd. Address before: 313104 Changxing County Agricultural Institute, Changxing County City, Zhejiang Patentee before: Gao Tian (Changxin) automotive safety equipment Co., Ltd. |