CN202320273U - Membrane for vacuum booster - Google Patents
Membrane for vacuum booster Download PDFInfo
- Publication number
- CN202320273U CN202320273U CN2011204849993U CN201120484999U CN202320273U CN 202320273 U CN202320273 U CN 202320273U CN 2011204849993 U CN2011204849993 U CN 2011204849993U CN 201120484999 U CN201120484999 U CN 201120484999U CN 202320273 U CN202320273 U CN 202320273U
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- CN
- China
- Prior art keywords
- membrane
- diaphragm
- vacuum booster
- lamina membranacea
- model
- 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 - Fee Related
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Abstract
The utility model provides a membrane for a vacuum booster and belongs to the field of the vacuum booster of an automobile. The membrane is in a ring shape, the outer ring edge of the membrane is tightly sealed between a front case and a back case, the inner ring edge is fixedly arranged on a membrane plate, and the booster is divided into a front cavity and a back cavity through the membrane and the membrane plate. The membrane manufactured by the utility model has the advantages that used rubber materials are greatly reduced, the utilization rate of raw materials is improved, and the resource consumption is reduced by at least 50 percent, so the production cost is greatly reduced, meanwhile, the weight of the membrane and the weight of the vacuum booster are reduced, in addition, the abnormal sound generated when the pasting surface of the membrane plate and the membrane are not completely pasted cannot occur, and the use effect of the vacuum booster is better. The membrane for the vacuum booster can be widely applied to the vacuum booster of the automobile.
Description
Technical field
The utility model relates to a kind of vehicular spare parts, specifically, especially relates to the automobile vacuum booster technical field.
Background technology
Vacuum booster is the crucial accessory in the brake system of car.It utilizes the vacuum of engine producing, and the difference of pressure by the different pressures of two epitrochoidal chambers in the vacuum booster produces amplifies brake pedal force in proportion and promotes brake master cylinder piston, and then produces that the brake fluid pressure control vehicle slows down, braking.
Common vacuum booster is to link the integral body that forms through the riveted joint mode by former and later two housings at present.Accessories such as front case, lamina membranacea, diaphragm, rear housing, containment member, piston shell, control cock member, locking plate, reaction plate, master cylinder piston and push rod, pull back spring have been generally included.Wherein, diaphragm has been the full glue barrier film that transmits the effect of pressure alternation, and its function is that compressed-air actuated pressure is converted into mechanical thrust, plays the car brakeing effect.Diaphragm is an indispensable power element in the brake system of car, is security personnel's part important on the automobile.
At present, traditional diaphragm all be riveting on the air piston shell, as shown in Figure 2.The diaphragm diameter of this kind structure is big, degree of utilization is low, and the big cost of the wasting of resources is high.And such structure causes that diaphragm is large-area to be contacted with lamina membranacea, is difficult for fitting fully with the lamina membranacea binding face, can produce abnormal sound in the use, influences result of use.
And along with the development of society, people constantly increase the demand of automobile, and the scarcity of natural resources is better practiced thrift and utilized resource to become more and more important at auto trade.Especially modern society constantly increases the demand of oil, and rubber seems particularly precious as a kind of product that from oil, extracts.For building a resource-conserving society, just must improve our design level to automotive components, from designing the innovation theory, economize on resources, reduce the irrational utilization of raw MAT'L and cause waste.
Summary of the invention
To the problems referred to above, the utility model provides a kind of diaphragm that is used for vacuum booster,
The utility model is realized through following technological means: a kind of diaphragm that is used for vacuum booster, a kind of diaphragm that is used for vacuum booster, diaphragm are annular, and said diaphragm outer shroud edge tightening seal is between fore shell and back cover, and interior ring edge is fixed on the lamina membranacea; Diaphragm and lamina membranacea are divided into ante-chamber and back cavity with servo-unit jointly.
The utility model also can be done following improvement:
Said lamina membranacea is provided with annular groove, and the ring edge rollers is pressed in the annular groove of lamina membranacea in the diaphragm, plays better fixing seal effect.
Said ring-type diaphragm outer shroud diameter is 268.59mm, and interior ring diameter is 216.2mm, has reduced the raw material of making diaphragm greatly.
Compared with prior art, the beneficial effect that the utlity model has is:
1) as shown in Figure 5, the outer ring diameter of traditional endless diaphragm seal between front and rear casing is 268.59mm, with ring diameter in the piston shell interference bonded assembly be 39.75mm; The inner and outer ring semidiameter, promptly the width of ring film is 114.42mm, and as shown in Figure 4; The novel diaphragm of the utility model is when ring diameter is all 268.59mm outside, and the interior ring diameter that is fixed on the lamina membranacea is 216.2mm, the inner and outer ring semidiameter; The width that is ring film is 26.195mm, and much smaller than traditional diaphragm, the elastomeric material of making the diaphragm use greatly reduces; Improved raw-material degree of utilization, reduced resource consumption and reach 50% at least, thereby greatly reduce productive costs.
2) vacuum booster of same size specification, when using traditional diaphragm, diaphragm area is π R
2-π R
1 2, and the technology of employing the utility model, diaphragm area is π R
2-π R
1 2, wherein, R is the outer shroud radius, R
1For encircling radius in traditional diaphragm, R
2For encircling radius in the utility model diaphragm, the material area of minimizing is π R
1 2-π R
1 2, this shows that the raw MAT'L of making diaphragm greatly reduces, and has reduced the weight of diaphragm weight and vacuum booster.
3) technology of employing the utility model, diaphragm is not that large tracts of land contacts with lamina membranacea, therefore can not cause owing to diaphragm and the incomplete abnormal sound of fitting and producing of lamina membranacea, has strengthened the vacuum booster result of use.
Description of drawings
Fig. 1 is the assembling scheme drawing of diaphragm in vacuum booster of the utility model;
Fig. 2 is the assembling scheme drawing of traditional diaphragm;
Fig. 3 is the assembling scheme drawing of the diaphragm of the utility model;
Fig. 4 is the diaphragm section-drawing of the utility model;
Fig. 5 is the section-drawing of traditional diaphragm;
Among the figure: 1. diaphragm; 2. lamina membranacea; 3. seal ring; 4. piston shell.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified, but the utility model is not caused any restriction.
A kind of diaphragm that is used for vacuum booster, diaphragm 1 are annular, and said diaphragm 1 outer shroud edge tightening seal is between fore shell and back cover, and interior ring edge is fixed on the lamina membranacea 2.Diaphragm 1 is divided into ante-chamber and back cavity with servo-unit jointly with lamina membranacea 2.
A kind of diaphragm that is used for vacuum booster, this vacuum booster comprise fore shell, back cover, piston shell 4, diaphragm 1, lamina membranacea 2, bar, master cylinder; Be provided with pull back spring between said piston shell 4 and the said fore shell; Diaphragm 1 is an annular, and said diaphragm 1 outer shroud edge tightening seal is between fore shell and back cover, and interior ring edge rollers is pressed in the annular groove that lamina membranacea 2 is provided with; The Kong Bingyu lamina membranacea 2 that the piston shell passes lamina membranacea 2 centers connects, and is provided with seal ring 3 between said piston shell 4 and the lamina membranacea 2, and sealing circle 3 is positioned at the annular groove of offering on the piston shell 4; Diaphragm 1 is divided into ante-chamber and back cavity with servo-unit jointly with lamina membranacea 2.Bar runs through template 2 and is connected in front and rear casing, passes through dynamic seal ring interference sliding block joint between said bar and the lamina membranacea 2.Said dynamic seal ring is a tubulose, and the outside interference of one of which end is connected in the through hole on the lamina membranacea, and bar is by passing the inboard and bar interference sliding block joint of the other end of said dynamic seal ring in the dynamic seal ring.Said dynamic seal ring and lamina membranacea 2 junctions are provided with groove, and said lamina membranacea 2 is connected in this groove.Said dynamic seal ring and lamina membranacea bonded assembly one end have the outer rim of radially extending, and said outer rim is close on the lamina membranacea, prevents that dynamic seal ring from coming off in through hole.
A kind of diaphragm lamina membranacea assembly that is used for vacuum booster, this vacuum booster comprises fore shell, back cover, piston shell 4, diaphragm 1, lamina membranacea 2, master cylinder; Be provided with pull back spring between said piston shell 4 and the said fore shell; Diaphragm 1 is an annular, and its outer ring diameter is 268.59mm, and interior ring diameter is 216.2mm; Said diaphragm 1 outer shroud edge tightening seal is between fore shell and back cover, and interior ring edge rollers is pressed in the annular groove that lamina membranacea 2 is provided with; The Kong Bingyu lamina membranacea 2 that the piston shell passes lamina membranacea 2 centers connects, and is provided with seal ring 3 between said piston shell 4 and the lamina membranacea 2, and sealing circle 3 is positioned at the annular groove of offering on the piston shell 4; Diaphragm 1 is divided into ante-chamber and back cavity with servo-unit jointly with lamina membranacea 2.
The above embodiments are merely the preferred embodiment of the utility model, can not limit the interest field of the utility model with this, and therefore, the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (2)
1. diaphragm that is used for vacuum booster is characterized in that: diaphragm (1) is annular, and said diaphragm (1) outer shroud edge tightening seal is between fore shell and back cover, and interior ring edge is fixed on the lamina membranacea (2); Diaphragm (1) is divided into ante-chamber and back cavity with servo-unit jointly with lamina membranacea (2).
2. the diaphragm lamina membranacea assembly that is used for vacuum booster according to claim 1, it is characterized in that: said lamina membranacea (2) is provided with annular groove, and the ring edge rollers is pressed in the annular groove of lamina membranacea (2) in the diaphragm (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204849993U CN202320273U (en) | 2011-11-28 | 2011-11-28 | Membrane for vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204849993U CN202320273U (en) | 2011-11-28 | 2011-11-28 | Membrane for vacuum booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202320273U true CN202320273U (en) | 2012-07-11 |
Family
ID=46432264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204849993U Expired - Fee Related CN202320273U (en) | 2011-11-28 | 2011-11-28 | Membrane for vacuum booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202320273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824102A (en) * | 2020-07-24 | 2020-10-27 | 北京汽车集团越野车有限公司 | Vacuum booster and car |
-
2011
- 2011-11-28 CN CN2011204849993U patent/CN202320273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111824102A (en) * | 2020-07-24 | 2020-10-27 | 北京汽车集团越野车有限公司 | Vacuum booster and car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |