CN105313867A - Vacuum booster and leather diaphragm thereof - Google Patents
Vacuum booster and leather diaphragm thereof Download PDFInfo
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- CN105313867A CN105313867A CN201410374462.XA CN201410374462A CN105313867A CN 105313867 A CN105313867 A CN 105313867A CN 201410374462 A CN201410374462 A CN 201410374462A CN 105313867 A CN105313867 A CN 105313867A
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- epithelium
- vacuum booster
- reinforced ribs
- distributed
- leather diaphragm
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Abstract
The invention relates to a leather diaphragm of a vacuum booster. The leather diaphragm has a first surface and a second surface which are opposite, wherein a through hole is formed in the center of the leather diaphragm, the edge of the leather diaphragm is provided with a curl part, and a plurality of stiffening ribs which extend to the curl part from the center of the leather diaphragm are distributed on the first surface and/or the second surface. The leather diaphragm of the vacuum booster, provided by the invention, provides adequate performance in case of smaller thickness.
Description
Technical field
The present invention relates to the vacuum booster of automobile, more particularly, relate to a kind of vacuum booster epithelium.
Background technology
Vacuum booster is the brake power assist unit in light, car brake system, is the critical component in brake system of car.The vacuum that its principle of work produces when being and utilizing engine petrol to work, or the vacuum that the vacuum pump that installs additional of diesel motor produces, when chaufeur depresses brake pedal, by means of the thrust that the different difference of pressure of two epitrochoidal chambers in vacuum booster produces, amplify brake pedal force by design proportion and promote brake master cylinder piston, braking liquid in compression brake master cylinder produces hydraulic pressure, and be delivered to wheel drg and brake shoe brake cheek contact with wheel nave or slipper contacts with wheel brake, and then generation friction drag control car retardation or braking.
Vacuum booster is the cavity that a diameter is larger, by epithelium, cavity is divided into two or more part, and one of them part is connected with engine air inlet tube by pipeline, and other parts communicate with air.When vacuum booster produces power-assisted, servo-unit is divided into multiple cavity by epithelium, and the sealing property of each cavity is ensured by epithelium, also must ensure also will move at push rod epithelium in motion process simultaneously, servo-unit inside is formed while be vacuum, while be barometric pressure, thus this pressure reduction is utilized to produce power-assisted.So the quality of the leak tightness of epithelium in servo-unit, directly affect the sensitieness of automobile brake effect and braking, and labour intensity during chaufeur braking.
Be out of shape because epithelium bears larger pressure at vacuum booster, therefore have certain requirement to performances such as its hardness, intensity, proportion and percentage elongation.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of vacuum booster epithelium, and it provides the performance met the demands under less thickness.
The present invention be solve the problems of the technologies described above the technical scheme adopted be propose a kind of vacuum booster epithelium, there is relative first surface and second surface, through hole is provided with at the center of this epithelium, at the edge of this epithelium, there is a curled portion, at this first surface and/or this second surface, be distributed with many reinforced ribs extended to this curled portion from the center of this epithelium.
In one embodiment of this invention, these many reinforced ribs are divided into many groups, and the circumferential distance between the adjacent said rib often in group is less than the circumferential distance between each group of reinforced rib.
In one embodiment of this invention, these many reinforced ribs extend to the beginning edge of this curled portion.
In one embodiment of this invention, this epithelium is distributed with the fold of multi-turn circumferencial direction.
In one embodiment of this invention, these many reinforced ribs are through each circle fold.
In one embodiment of this invention, this epithelium is also distributed with two centrosymmetric apertures relative to this epithelium.
The present invention also proposes a kind of vacuum booster, comprises vacuum booster epithelium as above.
The present invention, owing to adopting above technical scheme, makes it compared with prior art, can reach the performance figure substantially the same with existing epithelium, but thickness is lower, can allow epithelium lightweight and save material.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 illustrates an angle block diagram of the vacuum booster epithelium of one embodiment of the invention.
Fig. 2 illustrates another angle block diagram of the vacuum booster epithelium of one embodiment of the invention.
Fig. 3 illustrates that the vacuum booster epithelium of one embodiment of the invention is installed to the part sectional view of vacuum booster.
Detailed description of the invention
Fig. 1 illustrates an angle block diagram of the vacuum booster epithelium of one embodiment of the invention.Fig. 2 illustrates another angle block diagram of the vacuum booster epithelium of one embodiment of the invention.Shown in figure 1, Fig. 2, the vacuum booster epithelium 10 of the present embodiment, has relative first surface 10a and second surface 10b.First surface 10a can be the outside face of slightly curved vacuum booster epithelium 10.Relative, second surface 10b can be the inside face of slightly curved vacuum booster epithelium 10.Be provided with through hole 11 at the center of epithelium 10, this through hole 11 passes for its main shaft when epithelium 10 is installed to vacuum booster.Epithelium 10 is also provided with two centrosymmetric apertures 12 relative to epithelium.There is at the edge of epithelium 10 curled portion 13.Curled portion 13 extends to last edge 13b from beginning edge 13a.
At the first surface 10a of epithelium, be distributed with many reinforced ribs 14.These reinforced ribs 14 extend from the center of epithelium to curled portion 13.As shown in Figure 1, these reinforced ribs 14 can extend to the beginning edge 13a of curled portion 13.The through hole 11 of starting point near epithelium center of these reinforced ribs 14, but do not extend to through hole 11.These reinforced ribs 14 are divided into multiple groups, and the circumferential distance between the adjacent said rib often in group is less than the circumferential distance between each group of reinforced rib.For two groups of reinforced ribs 14a, 14b, the circumferential distance of the adjacent said rib in group is very near, and circumferential distance between two groups of reinforced ribs 14a, 14b is far away.But be appreciated that quantity that reinforced rib 14 of the present invention distributes, dense degree is not limited to shown in Fig. 1, but can adjusts according to actual conditions.
At the second surface 10b of epithelium, be also distributed with many reinforced ribs 15.These reinforced ribs 15 extend from the center of epithelium to curled portion 13.As shown in Figure 2, these reinforced ribs 15 also can extend to the beginning edge 13a of curled portion 13.The through hole 11 of starting point near epithelium center of these reinforced ribs 15, but do not extend to through hole 11.These reinforced ribs 15 can be divided into multiple groups, and the circumferential distance between the adjacent said rib often in group is less than the circumferential distance between each group of reinforced rib.For two groups of reinforced ribs 15a, 15b, the circumferential distance of the adjacent said rib in group is very near, and circumferential distance between two groups of reinforced ribs 15a, 15b is far away.But be appreciated that quantity that reinforced rib 15 of the present invention distributes, dense degree is not limited to shown in Fig. 2, but can adjusts according to actual conditions.
Be appreciated that in an embodiment of the present invention, reinforced rib 15 only can be distributed in the first surface 10a of epithelium, also only can be distributed in the second surface 10b of epithelium.
Still with reference to shown in figure 1,2, epithelium 10 is distributed with the fold 16 of multi-turn circumferencial direction.Reinforced rib 14 and/or 15 is through each circle fold 16.Such as, reinforced rib 14 and/or 15 can through all folds 16, to improve the intensity of these folds.
Although Fig. 1,2 illustrates that reinforced rib 14,15 is straight line in the radial direction of epithelium 10, be appreciated that reinforced rib 14,15 can be also curve in the radial direction of epithelium 10.
In addition, reinforced rib 14,15 width, highly can adjust as required.
Fig. 3 illustrates that the vacuum booster epithelium of one embodiment of the invention is installed to the part sectional view of vacuum booster.Shown in figure 3, epithelium 10 is installed on vacuum booster 20 and uses.
Following table 1 illustrates the vacuum booster epithelium of the embodiment of the present invention and the Performance comparision of existing epithelium.
Table 1
Shown in reference table 1, for the epithelium being of a size of 11 cun, the existing epithelium without reinforced rib is in order to reach the performance of standard-required, its thickness needs to reach 1mm, by contrast, the performance that the epithelium of the embodiment of the present invention only needs 0.8mm can reach identical, thickness reduces 20%.This thickness of 20% reduces to save for the lightweight of epithelium and material to have significant meaning.
Although the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, change or the replacement of various equivalence also can be made when not departing from spirit of the present invention, therefore, as long as all will drop in the scope of claims of the application the change of above-described embodiment, modification in spirit of the present invention.
Claims (7)
1. a vacuum booster epithelium, there is relative first surface and second surface, be provided with through hole at the center of this epithelium, at the edge of this epithelium, there is a curled portion, at this first surface and/or this second surface, be distributed with many reinforced ribs extended to this curled portion from the center of this epithelium.
2. vacuum booster epithelium as claimed in claim 1, it is characterized in that, these many reinforced ribs are divided into many groups, and the circumferential distance between the adjacent said rib often in group is less than the circumferential distance between each group of reinforced rib.
3. vacuum booster epithelium as claimed in claim 1, it is characterized in that, these many reinforced ribs extend to the beginning edge of this curled portion.
4. vacuum booster epithelium as claimed in claim 1, is characterized in that, this epithelium is distributed with the fold of multi-turn circumferencial direction.
5. vacuum booster epithelium as claimed in claim 4, it is characterized in that, these many reinforced ribs are through each circle fold.
6. vacuum booster epithelium as claimed in claim 1, is characterized in that, this epithelium is also distributed with two centrosymmetric apertures relative to this epithelium.
7. a vacuum booster, comprises the vacuum booster epithelium described in any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374462.XA CN105313867A (en) | 2014-07-31 | 2014-07-31 | Vacuum booster and leather diaphragm thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410374462.XA CN105313867A (en) | 2014-07-31 | 2014-07-31 | Vacuum booster and leather diaphragm thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105313867A true CN105313867A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410374462.XA Pending CN105313867A (en) | 2014-07-31 | 2014-07-31 | Vacuum booster and leather diaphragm thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105313867A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201268305Y (en) * | 2008-07-17 | 2009-07-08 | 安徽中鼎泰克汽车密封件有限公司 | Leather diaphragm of automobile vacuum booster |
| CN201882071U (en) * | 2010-12-20 | 2011-06-29 | 贵州精忠橡塑实业有限公司 | Rubber diaphragm of automobile vacuum booster |
| CN202106960U (en) * | 2011-05-20 | 2012-01-11 | 安徽中鼎泰克汽车密封件有限公司 | Separating sleeve for automobile vacuum booster |
| CN202413775U (en) * | 2011-12-01 | 2012-09-05 | 四川制动科技股份有限公司 | Rubber diaphragm plate for railway brake valve |
| CN202952970U (en) * | 2012-10-30 | 2013-05-29 | 安徽中鼎泰克汽车密封件有限公司 | Oiler diaphragm for automobile brake master cylinder |
| CN203996199U (en) * | 2014-07-31 | 2014-12-10 | 上海大陆汽车制动系统销售有限公司 | Vacuum booster epithelium and vacuum booster |
-
2014
- 2014-07-31 CN CN201410374462.XA patent/CN105313867A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201268305Y (en) * | 2008-07-17 | 2009-07-08 | 安徽中鼎泰克汽车密封件有限公司 | Leather diaphragm of automobile vacuum booster |
| CN201882071U (en) * | 2010-12-20 | 2011-06-29 | 贵州精忠橡塑实业有限公司 | Rubber diaphragm of automobile vacuum booster |
| CN202106960U (en) * | 2011-05-20 | 2012-01-11 | 安徽中鼎泰克汽车密封件有限公司 | Separating sleeve for automobile vacuum booster |
| CN202413775U (en) * | 2011-12-01 | 2012-09-05 | 四川制动科技股份有限公司 | Rubber diaphragm plate for railway brake valve |
| CN202952970U (en) * | 2012-10-30 | 2013-05-29 | 安徽中鼎泰克汽车密封件有限公司 | Oiler diaphragm for automobile brake master cylinder |
| CN203996199U (en) * | 2014-07-31 | 2014-12-10 | 上海大陆汽车制动系统销售有限公司 | Vacuum booster epithelium and vacuum booster |
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Application publication date: 20160210 |