CN204659659U - A kind of manned vehicle safety air bag extraction hood - Google Patents
A kind of manned vehicle safety air bag extraction hood Download PDFInfo
- Publication number
- CN204659659U CN204659659U CN201520297776.4U CN201520297776U CN204659659U CN 204659659 U CN204659659 U CN 204659659U CN 201520297776 U CN201520297776 U CN 201520297776U CN 204659659 U CN204659659 U CN 204659659U
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- flanging
- hole
- air bag
- extraction hood
- vehicle safety
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Abstract
The utility model discloses a kind of manned vehicle safety air bag extraction hood, comprise the tubular cover body be enclosed to form by annular sidewall and end plate, cover body one end open, open end outer ring around cover body is provided with flanging, described annular sidewall, end plate and flanging are integral type structure, the outline of described flanging is rectangular, the corner of flanging is respectively equipped with mounting hole, on flanging, the side of one of them mounting hole is also provided with knock hole, annular sidewall is evenly equipped with several deflation hole around its circumferential interval, and described deflation hole is axially extended strip hole.The utility model is that one can increase extraction hood intensity, and manned vehicle safety air bag extraction hood easy to use.
Description
Technical field
The utility model belongs to manned vehicle technical field, particularly relates to a kind of manned vehicle safety air bag extraction hood.
Background technology
Gas generator in manned vehicle safety air bag is when colliding, and the explosive charge in gas generator, is produced gas, discharged, to fill large safety air bag by the extraction hood of gas generator.
The deflation hole of existing extraction hood is circular hole, if pitch of holes is excessive, then affects free air capacity, if pitch of holes is too small, then affects the intensity of extraction hood.
Utility model content
The purpose of this utility model is to provide one can increase extraction hood intensity, and manned vehicle safety air bag extraction hood easy to use.
For achieving the above object, the utility model adopts following technical scheme: a kind of manned vehicle safety air bag extraction hood, comprise the tubular cover body be enclosed to form by annular sidewall and end plate, cover body one end open, open end outer ring around cover body is provided with flanging, described annular sidewall, end plate and flanging are integral type structure, the outline of described flanging is rectangular, the corner of flanging is respectively equipped with mounting hole, on flanging, the side of one of them mounting hole is also provided with knock hole, annular sidewall is evenly equipped with several deflation hole around its circumferential interval, described deflation hole is axially extended strip hole.
Described deflation hole is slotted hole.
Described annular sidewall is annular arrangement sidewall.
The gross area of all slotted holes is not less than 5% with the ratio of the area of annular arrangement sidewall outside wall surface.
The gross area of all slotted holes is 6% with the ratio of the area of annular arrangement sidewall outside wall surface.
The outline of described flanging is in square.
A kind of manned vehicle safety air bag extraction hood described in the utility model, has following beneficial effect: deflation hole is strip hole, and when equal air output, the pitch of holes in strip hole is comparatively large, both can ensure cover body intensity, and not affect air output again; And deflation hole along the circumferential direction interval arranges several, can ensure that the outstanding gas Quick uniform of middle explosion chamber disperses away, change gas flow simultaneously, prevented chip from hitting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Description of reference numerals: 1, flanging, 2, annular sidewall, 3, end plate, 4, deflation hole, 5, mounting hole, 6, knock hole.
Detailed description of the invention
By a kind of manned vehicle safety air bag extraction hood shown in Fig. 1-Fig. 2, comprise the tubular cover body be enclosed to form by annular sidewall 2 and end plate 3, namely annular sidewall 2 open at one end, the other end are closed by end plate 3, the cover body one end open namely formed, and the open end of cover body is the opening end of annular sidewall 2.Described annular sidewall 2 is annular arrangement sidewall.
Open end outer ring around cover body is provided with flanging 1, and flanging 1 is also for being positioned at the outside bending edges of annular sidewall 2 opening end.Flanging 1 is radial extension.
The outline of described flanging 1 is rectangular, and in preferred version, the outline of flanging 1 is in square.The corner of flanging 1 is provided with mounting hole 5 respectively, and on flanging 1, the side of one of them mounting hole 5 is also provided with knock hole 6, and knock hole 6 is also arranged on flanging 1.In use, by mounting hole 5, cover body bolt is connected on gas generator.
Annular sidewall 2 is evenly equipped with several deflation hole 4 around its circumferential interval, and described deflation hole 4 is axially extended strip hole, and deflation hole 4 is preferably slotted hole.The gross area of all slotted holes is not less than 5% with the ratio of the area of annular arrangement sidewall outside wall surface, and in preferred version, the gross area of all slotted holes is 6% with the ratio of the area of annular arrangement sidewall outside wall surface.
Described annular sidewall 2, end plate 3 and flanging 1 is integral type structure, and namely this manned vehicle safety air bag extraction hood is integrally manufactured shaping by mould.Knock hole 6 be cover body when Making mold, for mould location used.
A kind of manned vehicle safety air bag extraction hood described in the utility model, according to the requirement of installing air bag, selects the size of deflation hole 4, to determine tolerance size.Deflation hole 4 is strip hole, and when equal air output, the pitch of holes in strip hole is comparatively large, both can ensure cover body intensity, and not affect air output again; And deflation hole 4 along the circumferential direction interval arranges several, can ensure that the outstanding gas Quick uniform of middle explosion chamber disperses away, change gas flow simultaneously, prevented chip from hitting.This deflation hole 4 can only be arranged on annular sidewall 2, if at the joining place of end plate 3 and annular sidewall 2, can reduce the intensity at this place; If on end plate 3, then can weaken the intensity of end plate 3, should avoid that air-flow can not straight line be out vertically.
Claims (6)
1. a manned vehicle safety air bag extraction hood, it is characterized in that: comprise the tubular cover body be enclosed to form by annular sidewall and end plate, cover body one end open, open end outer ring around cover body is provided with flanging, described annular sidewall, end plate and flanging are integral type structure, the outline of described flanging is rectangular, the corner of flanging is respectively equipped with mounting hole, on flanging, the side of one of them mounting hole is also provided with knock hole, annular sidewall is evenly equipped with several deflation hole around its circumferential interval, and described deflation hole is axially extended strip hole.
2. a kind of manned vehicle safety air bag extraction hood as claimed in claim 1, is characterized in that: described deflation hole is slotted hole.
3. a kind of manned vehicle safety air bag extraction hood as claimed in claim 2, is characterized in that: described annular sidewall is annular arrangement sidewall.
4. a kind of manned vehicle safety air bag extraction hood as claimed in claim 3, is characterized in that: the gross area of all slotted holes is not less than 5% with the ratio of the area of annular arrangement sidewall outside wall surface.
5. a kind of manned vehicle safety air bag extraction hood as claimed in claim 4, is characterized in that: the gross area of all slotted holes is 6% with the ratio of the area of annular arrangement sidewall outside wall surface.
6. a kind of manned vehicle safety air bag extraction hood as claimed in claim 1, is characterized in that: the outline of described flanging is in square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297776.4U CN204659659U (en) | 2015-05-08 | 2015-05-08 | A kind of manned vehicle safety air bag extraction hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520297776.4U CN204659659U (en) | 2015-05-08 | 2015-05-08 | A kind of manned vehicle safety air bag extraction hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204659659U true CN204659659U (en) | 2015-09-23 |
Family
ID=54130078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520297776.4U Active CN204659659U (en) | 2015-05-08 | 2015-05-08 | A kind of manned vehicle safety air bag extraction hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204659659U (en) |
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2015
- 2015-05-08 CN CN201520297776.4U patent/CN204659659U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |