CN201120877Y - Gas generator for safety air sac - Google Patents
Gas generator for safety air sac Download PDFInfo
- Publication number
- CN201120877Y CN201120877Y CNU2007203052573U CN200720305257U CN201120877Y CN 201120877 Y CN201120877 Y CN 201120877Y CN U2007203052573 U CNU2007203052573 U CN U2007203052573U CN 200720305257 U CN200720305257 U CN 200720305257U CN 201120877 Y CN201120877 Y CN 201120877Y
- Authority
- CN
- China
- Prior art keywords
- outer tube
- gas generator
- throttle disk
- annular throttle
- plug screw
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Air Bags (AREA)
Abstract
The utility model relates to a gas generator used for an air bag, which comprises an outer pipe, a screw plug, a filter, a ring-shaped throttle plate, pyrotechnic composition, an fire igniting device and a sealing piece; the outer pipe adopts a hollow pipe with two ends opened; the screw plug is fixed at one end of the outer pipe; the fire igniting device is fixed in the end port of the other end of the outer pipe; an air hole communicated with the inner cavity of the outer pipe is arranged on the pipe wall at one end of the adjacent screw plug of the outer pipe; the filter is arranged at one end closely adjacent with the screw plug in the outer pipe, and the air hole is covered; the ring-shaped throttle plate is arranged at the position closely adjacent with the filter, and is closely matched with the inner wall of the outer pipe; the pyrotechnic composition is arranged in the inner cavity between the ring-shaped throttle plate and the fire igniting device, wherein the sealing piece is fixed and arranged on the end surface of the ring-shaped throttle plate, and the inner ring of the ring-shaped throttle plate is covered. The gas generator of the utility model has the advantages that the working performance is reliable and stable, and the assembling efficiency is high.
Description
Technical field
The utility model relates to a kind of gas generator, specifically, relates to a kind of gas generator that is used for the safety air bag of automotive seat side.
Background technology
The safety air bag of automotive seat side is the chest safety air bag again; this safety air bag is arranged in the backrest of front seat usually; and together be installed in the plastic casing with gas generator after being folded; its effect is exactly the safety that is used to protect travelling people person when vehicle drive meets accident bump; with the injury of avoiding automobile when clashing into, to bring for travelling people person from the side; and gas generator is the core component of safety air bag, and it mainly acts on is that to bump when being triggered at automobile be safety air bag air feed and inflation.
As shown in Figure 1, the existing gas generator that is used for the automotive seat side airbag mainly comprises outer tube 1, plug screw 2, filter 3, annular throttle disk 4, pyrotechnic composition 5, igniter 6 and seal strip 7, and described outer tube 1 is the hollow tube of open at both ends; Described plug screw 2 is located an end that is fixedly installed on outer tube 1 by the closing in of outer tube 1 end, and the double-screw bolt end of plug screw 2 is positioned at outside the port of outer tube 1; The closing in location of described igniter 6 by outer tube 1 the other end be fixedly installed in the port of the other end of outer tube 1 and the dispatch from foreign news agency terminal of igniter 6 outside port; Have the pore 8 that communicates with the inner chamber of outer tube 1 on the tube wall of contiguous plug screw 2 one ends of outer tube 1, described filter 3 is arranged on an end of next-door neighbour's plug screw 2 in the outer tube 1 and covers described pore 8; Described annular throttle disk 4 is arranged on the position of next-door neighbour's filter 3 in the outer tube 1 and closely cooperates with the inwall of outer tube 1; Described pyrotechnic composition 5 is arranged in the inner chamber of the outer tube 1 between annular throttle disk 4 and the igniter 6; Described seal strip 7 is between pore 8 and filtering net 3 and cover pore 8.
Existing vehicle airbag gas generator is to prevent that the method that inner pyrotechnic composition damp failure is adopted from being directly to cover seal strip on the pore of outer tube wall, because of the volume of the gas generator of automotive seat side airbag less, when adopting this mode to seal, the comparison difficulty that operates may also can cause seal strip to be damaged in assembling process simultaneously and influences sealing effectiveness.
The utility model content
The purpose of this utility model is to overcome the seal strip fitting operation difficulty of existing gas generator, and in assembling process, may cause seal strip to be damaged and influence the shortcoming of sealing effectiveness, provide a kind of easy for installation, and a kind of safety air bag gas generator of good sealing effect.
The safety air bag that the utility model provides comprises outer tube, plug screw, filter, annular throttle disk, pyrotechnic composition, igniter and seal strip with gas generator, and described outer tube is the hollow tube of open at both ends; Described plug screw is fixedly installed on an end of outer tube; Described igniter is fixedly installed in the port of the other end of outer tube; Have the pore that communicates with the inner chamber of outer tube on the tube wall of contiguous plug screw one end of outer tube, described filter is arranged on an end of next-door neighbour's plug screw in the outer tube and covers described pore; Described annular throttle disk is arranged on the position of next-door neighbour's filter in the outer tube and closely cooperates with the inwall of outer tube; Described pyrotechnic composition is arranged in the inner chamber of the outer tube between annular throttle disk and the igniter; Wherein, described seal strip is fixedly installed on the end face of annular throttle disk and covers the inner ring of annular throttle disk.
The utility model safety air bag is sealed in the outer tube by annular throttle disk and igniter with ignition function with the pyrotechnic composition in the gas generator, and sealed of the inner ring of annular throttle disk seal, can prevent the pyrotechnic composition damp failure in the outer tube so effectively, and easy fitting operation, can avoid effectively also simultaneously that seal strip may be damaged the bad problem of leak tightness that is caused when assembling, this gas generator has stable and reliable working performance, the advantage that efficiency of assembling is high.
Description of drawings
Fig. 1 is the structural representation of the gas generator of prior art;
Fig. 2 is the structural representation of gas generator of the present utility model;
Fig. 3 is the structural representation of annular throttle disk in the gas generator of the present utility model;
Fig. 4 is the structural representation of plug screw in the gas generator of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
As shown in Figure 2, safety air bag of the present utility model comprises outer tube 1, plug screw 2, filter 3, annular throttle disk 4, pyrotechnic composition 5, igniter 6 and seal strip 7 with gas generator, and described outer tube 1 is the hollow tube of open at both ends; Described plug screw 2 is located an end that is fixedly installed on outer tube 1 by the closing in of outer tube 1 end, and the double-screw bolt end of plug screw 2 is positioned at outside the port of outer tube 1; The closing in location of described igniter 6 by outer tube 1 the other end be fixedly installed in the port of the other end of outer tube 1 and the dispatch from foreign news agency terminal of igniter 6 outside port; Have the pore 8 that communicates with the inner chamber of outer tube 1 on the tube wall of contiguous plug screw 2 one ends of outer tube 1, described filter 3 is arranged on an end of next-door neighbour's plug screw 2 in the outer tube 1 and covers described pore 8; Described annular throttle disk 4 is arranged on the position of next-door neighbour's filter 3 in the outer tube 1 and closely cooperates with the inwall of outer tube 1; Described pyrotechnic composition 5 is arranged in the inner chamber of the outer tube 1 between annular throttle disk 4 and the igniter 6; Wherein, described seal strip 7 is fixedly installed on the end face of annular throttle disk 4 and covers the inner ring 9 of annular throttle disk 4.
As shown in Figure 3, one of them end face of described annular throttle disk 4 can have the concave panel 11 of convex edge 10 for peripheral zone, the size of the size of described concave panel 11 and seal strip 7 is complementary, and seal strip 7 fixedly sticks on the concave panel 11, under the preferable case, the concave panel 11 on the described annular throttle disk 4 is towards pyrotechnic composition 5.The mode that former sealing is installed has been optimized in the employing of concave panel 11, can also avoid the damage that causes to seal strip because of assembling simultaneously effectively.
As shown in Figure 4, has a groove 12 on the end face of the chock plug end inwardly of described plug screw 2, the external diameter size of the size of described groove 12 and filter 3 is complementary, one end of the filter 3 of next-door neighbour's plug screw 2 snaps in this groove 12, described groove 12 helps the fixing of filter 3, prevents that filter 3 from setovering when mounted.
Being set with annular boss 13 on the inwall of outer tube 1 of pyrotechnic composition 5 one sides of the described annular throttle disk 4 of next-door neighbour, fits with annular boss 13 in the convex edge 10 on the described annular throttle disk 4.Being provided with of described annular boss 13 is beneficial to the location and installation of annular throttle disk 4 in outer tube 1.
Gas generator of the present utility model is compared with existing gas generator has following advantage: at first Diaphragm seal is sticked on design on the ring-shaped throttling plate, stick on than diaphragm seal in the existing gas generator Design on the outer tube wall steam vent operates easily, and the simultaneously concave panel design of ring-shaped throttling plate end face can Damage the bad problem of sealing property that diaphragm seal was caused when effectively avoiding assembling, guaranteed sealing The property; And the Fixed-Filter in advance of the groove design on the end face of the chock plug end of plug screw has been avoided filter The biasing problem of installation occurs, this gas generator assembly manipulation is simple and convenient, and has improved efficiency of assembling, Reduced cost.
Claims (7)
1, a kind of safety air bag gas generator, this gas generator comprise outer tube (1), plug screw (2), filter (3), annular throttle disk (4), pyrotechnic composition (5), igniter (6) and seal strip (7), and described outer tube (1) is the hollow tube of open at both ends; Described plug screw (2) is fixedly installed on an end of outer tube (1); Described igniter (6) is fixedly installed in the port of the other end of outer tube (1); Have the pore (8) that communicates with the inner chamber of outer tube (1) on the tube wall of contiguous plug screw (2) one ends of outer tube (1), described filter (3) is arranged on an end of next-door neighbour's plug screw (2) in the outer tube (1) and covers described pore (8); Described annular throttle disk (4) is arranged on the position of next-door neighbour's filter (3) in the outer tube (1) and closely cooperates with the inwall of outer tube (1); Described pyrotechnic composition (5) is arranged in the inner chamber of the outer tube (1) between annular throttle disk (4) and the igniter (6); It is characterized in that described seal strip (7) is fixedly installed on the end face of annular throttle disk (4) and covers the inner ring (9) of annular throttle disk (4).
2, gas generator according to claim 1 is characterized in that, the end of described plug screw (2) and outer tube (1) is fixed on an end of outer tube (1) by the location of closing up and the double-screw bolt end of plug screw (2) is positioned at outside the port of outer tube (1); The closing in location of described igniter (6) by outer tube (1) the other end be fixed in the port of the other end of outer tube (1) and the dispatch from foreign news agency terminal of igniter (6) outside port.
3, gas generator according to claim 1, it is characterized in that, one of them end face of described annular throttle disk (4) is the concave panel (11) that periphery has convex edge (10), the size of the size of described concave panel (11) and seal strip (7) is complementary, and seal strip (7) fixedly sticks on the concave panel (11).
4, gas generator according to claim 3 is characterized in that, the concave panel (11) on the described annular throttle disk (4) is towards pyrotechnic composition (5).
5, according to any described gas generator in claim 1 or 2, it is characterized in that, has a groove (12) on the end face of the chock plug end inwardly of described plug screw (2), the external diameter size of the size of described groove (12) and filter (3) is complementary, and an end of the filter (3) of next-door neighbour's plug screw (2) snaps in this groove (12).
6, gas generator according to claim 1 is characterized in that, is set with annular boss (13) on the inwall of outer tube (1) of pyrotechnic composition (5) one sides of the described annular throttle disk of next-door neighbour (4).
7, gas generator according to claim 6, it is characterized in that, one of them end face of described annular throttle disk (4) is the concave panel (11) that periphery has convex edge (10), the size of the size of described concave panel (11) and seal strip (7) is complementary, and seal strip (7) fixedly sticks on the concave panel (11), fits with described annular boss (13) in the convex edge (10) on the described annular throttle disk (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203052573U CN201120877Y (en) | 2007-11-23 | 2007-11-23 | Gas generator for safety air sac |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203052573U CN201120877Y (en) | 2007-11-23 | 2007-11-23 | Gas generator for safety air sac |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201120877Y true CN201120877Y (en) | 2008-09-24 |
Family
ID=40008099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203052573U Expired - Lifetime CN201120877Y (en) | 2007-11-23 | 2007-11-23 | Gas generator for safety air sac |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201120877Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2475474A (en) * | 2009-11-06 | 2011-05-25 | Autoliv Dev | A throttled inflatable lifter for a vehicle bonnet |
| CN105196960A (en) * | 2015-08-29 | 2015-12-30 | 锦州锦恒安全装置有限公司 | Small-scale firework type gas generator of side airbag |
-
2007
- 2007-11-23 CN CNU2007203052573U patent/CN201120877Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2475474A (en) * | 2009-11-06 | 2011-05-25 | Autoliv Dev | A throttled inflatable lifter for a vehicle bonnet |
| GB2475474B (en) * | 2009-11-06 | 2014-10-08 | Autoliv Dev | A safety arrangement |
| CN105196960A (en) * | 2015-08-29 | 2015-12-30 | 锦州锦恒安全装置有限公司 | Small-scale firework type gas generator of side airbag |
| CN105196960B (en) * | 2015-08-29 | 2019-04-05 | 锦州锦恒安全装置有限公司 | Small-sized pyrotechnic side air bag gas generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204464653U (en) | A kind of dual resisteance formula new-energy automobile charge port structure | |
| CN104709364B (en) | Waterproof and dustproof charging port structure assembly of automobile | |
| US20040046373A1 (en) | Dual stage airbag inflator | |
| CN104752886A (en) | Double-isolating type charge interface structure of new energy car | |
| US20070001439A1 (en) | Gas generator for air bag | |
| WO2008123392A3 (en) | Air cleaner unit for internal combustion engine | |
| CN105720222A (en) | Pressure anti-explosion decompression balance valve utilizing small-sized battery pack | |
| CN104787127A (en) | Charging opening assembly arranged on front air grille of electric automobile | |
| CN201120877Y (en) | Gas generator for safety air sac | |
| CN206539524U (en) | Cfentrifugal blower atmospheric valve | |
| CN104819294A (en) | Electric vehicle charging port sealing structure with excellent waterproof function | |
| CN105806571B (en) | Vehicle-mounted fuel systems leak detection module and its detection method | |
| CN206246262U (en) | A kind of air filter | |
| CN106870162B (en) | A kind of integrated ducted rocket air intake port blanking cover | |
| CN202215405U (en) | Rollover safety valve | |
| CN201330667Y (en) | Overturning valve assembly | |
| CN109017576B (en) | Rearview mirror | |
| CN111038186A (en) | Built-in tire pressure detection device | |
| CN211994301U (en) | Novel tire repair liquid bottle | |
| CN211843981U (en) | Built-in tire pressure detection device | |
| CN204493711U (en) | A kind of electric motor car lanterns charging mouth sealing structure with superior water-proof function | |
| CN204358769U (en) | From the anti-self-destruction lighter of pressure release | |
| CN114559895B (en) | Small pyrotechnic gas generator with multifunctional filter screen structure | |
| CN219712446U (en) | Novel dustproof explosion-proof valve of high protection level | |
| CN217917870U (en) | Gas generator structure with adjustable output |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen BYD Auto Co., Ltd. Assignor: Biyadi Co., Ltd. Contract fulfillment period: 2008.12.5 to 2013.12.5 Contract record no.: 2008440000470 Denomination of utility model: System and method for testing air permeability of filter net of air generator for airbag Granted publication date: 20080924 License type: Exclusive license Record date: 20081210 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.5 TO 2013.12.5; CHANGE OF CONTRACT Name of requester: BIYADI AUTOMOBILE CO., LTD., SHENZHEN CITY Effective date: 20081210 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080924 |