CN203996199U - Vacuum booster epithelium and vacuum booster - Google Patents
Vacuum booster epithelium and vacuum booster Download PDFInfo
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- CN203996199U CN203996199U CN201420430363.4U CN201420430363U CN203996199U CN 203996199 U CN203996199 U CN 203996199U CN 201420430363 U CN201420430363 U CN 201420430363U CN 203996199 U CN203996199 U CN 203996199U
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Abstract
The utility model relates to a kind of vacuum booster epithelium and vacuum booster, there is relative first surface and second surface, center at this epithelium is provided with through hole, there is a curled portion at the edge of this epithelium, at this first surface and/or this second surface, be distributed with many reinforced ribs that this curled portion of mind-set is extended from this epithelium.Vacuum booster epithelium of the present utility model provides the performance meeting the demands under less thickness.
Description
Technical field
The utility model relates to the vacuum booster of automobile, more particularly, relates 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.Its principle of work is the vacuum producing while utilizing engine petrol work, or the vacuum that produces of the vacuum pump that installs additional of diesel motor, in the time that chaufeur depresses brake pedal, the thrust of borrowing the different difference of pressure of two epitrochoidal chambers in vacuum booster to produce, 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 contacted or slipper contacts with wheel brake with wheel nave, and then generation friction drag control car retardation or braking.
Vacuum booster is a cavity that diameter is larger, by epithelium, cavity is divided into two or more parts, and one of them part is connected with engine air inlet tube by pipeline, and other parts communicate with atmosphere.In the time that vacuum booster produces power-assisted, servo-unit is divided into multiple cavitys by epithelium, and ensure the sealing property of each cavity by epithelium, also must ensure also will move at push rod epithelium in motion process simultaneously, making inner formation of servo-unit is vacuum on one side, be barometric pressure on one side, thereby utilize this pressure reduction to produce power-assisted.So the quality of the leak tightness of epithelium in servo-unit, directly affects the sensitieness of automobile brake effect and braking, and labour intensity when chaufeur braking.
Because epithelium bears compared with large pressure and is out of shape at vacuum booster, therefore the performances such as its hardness, intensity, proportion and percentage elongation are had to certain requirement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of vacuum booster epithelium, and it provides the performance meeting the demands under less thickness.
The utility model be solve the problems of the technologies described above the technical scheme adopting be propose a kind of vacuum booster epithelium, there is relative first surface and second surface, center at this epithelium is provided with through hole, there is a curled portion at the edge of this epithelium, at this first surface and/or this second surface, be distributed with many reinforced ribs that this curled portion of mind-set is extended from this epithelium.
In an embodiment of the present utility model, these many reinforced ribs are divided into many groups, and the circumferential distance between the adjacent reinforced rib in every group, is less than the each group of circumferential distance between reinforced rib.
In an embodiment of the present utility model, these many reinforced ribs extend to the beginning edge of this curled portion.
In an embodiment of the present utility model, on this epithelium, be distributed with the fold of multi-turn circumferencial direction.
In an embodiment of the present utility model, these many reinforced ribs are through each circle fold.
In an embodiment of the present utility model, on this epithelium, be also distributed with two centrosymmetric apertures with respect to this epithelium.
The utility model also proposes a kind of vacuum booster, comprises vacuum booster epithelium as above.
The utility model due to adopt above technical scheme, make 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.
Brief description of the drawings
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent, below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is elaborated, wherein:
Fig. 1 illustrates an angle block diagram of the vacuum booster epithelium of the utility model one embodiment.
Fig. 2 illustrates another angle block diagram of the vacuum booster epithelium of the utility model one embodiment.
Fig. 3 illustrates that the vacuum booster epithelium of the utility model one embodiment 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 the utility model one embodiment.Fig. 2 illustrates another angle block diagram of the vacuum booster epithelium of the utility model one embodiment.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 epithelium 10 center, this through hole 11 passes for its main shaft in the time that epithelium 10 is installed to vacuum booster.Epithelium 10 is also provided with two centrosymmetric apertures 12 with respect to epithelium.There is a curled portion 13 at the edge of epithelium 10.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 mind-set curled portion 13 from epithelium is extended.As shown in Figure 1, these reinforced ribs 14 can extend to the beginning edge 13a of curled portion 13.The starting point of these reinforced ribs 14, near the through hole 11 at epithelium center, does not still extend to through hole 11.These reinforced ribs 14 are divided into multiple groups, and the circumferential distance between the adjacent reinforced rib in every group, is less than the each group of circumferential distance between reinforced rib.Taking two groups of reinforced rib 14a, 14b as example, the circumferential distance of the adjacent reinforced rib in group is very near, and circumferential distance between two groups of reinforced rib 14a, 14b is far away.But be appreciated that quantity, dense degree that reinforced rib 14 of the present utility model distributes are not limited to shown in Fig. 1, but can adjust according to actual conditions.
At the second surface 10b of epithelium, be also distributed with many reinforced ribs 15.These reinforced ribs 15 mind-set curled portion 13 from epithelium is extended.As shown in Figure 2, these reinforced ribs 15 also can extend to the beginning edge 13a of curled portion 13.The starting point of these reinforced ribs 15, near the through hole 11 at epithelium center, does not still extend to through hole 11.These reinforced ribs 15 can be divided into multiple groups, and the circumferential distance between the adjacent reinforced rib in every group, is less than the each group of circumferential distance between reinforced rib.Taking two groups of reinforced rib 15a, 15b as example, the circumferential distance of the adjacent reinforced rib in group is very near, and circumferential distance between two groups of reinforced rib 15a, 15b is far away.But be appreciated that quantity, dense degree that reinforced rib 15 of the present utility model distributes are not limited to shown in Fig. 2, but can adjust according to actual conditions.
Be appreciated that in embodiment of the present utility model, reinforced rib 15 can only be distributed in the first surface 10a of epithelium, also can only be distributed in the second surface 10b of epithelium.
Still with reference to shown in figure 1,2, on epithelium 10, be distributed with the fold 16 of multi-turn circumferencial direction.Reinforced rib 14 and/or 15 is through each circle fold 16.For example, reinforced rib 14 and/or 15 can pass through all folds 16, to improve the intensity of these folds.
Although it is upwards straight line that Fig. 1,2 illustrates reinforced rib 14,15 footpaths at epithelium 10, be appreciated that reinforced rib 14,15 footpaths at epithelium 10 can be also upwards curves.
In addition, the width of reinforced rib 14,15, highly can adjust as required.
Fig. 3 illustrates that the vacuum booster epithelium of the utility model one embodiment 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 utility model embodiment and the Performance Ratio of existing epithelium.
Table 1
Shown in reference table 1, for the epithelium that is of a size of 11 cun, the existing epithelium without reinforced rib is in order to reach the performance of standard-required, its thickness need to reach 1mm, by contrast, the epithelium of the utility model embodiment only needs 0.8mm can reach identical performance, and thickness has reduced 20%.This thickness of 20% reduces to have significant meaning for the lightweight of epithelium and material saving.
Although the utility model is described with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only for the utility model is described, in the situation that not departing from the utility model spirit, also can make variation or the replacement of various equivalences, therefore, as long as the variation to above-described embodiment, modification all will drop in the application's the scope of claims within the scope of connotation of the present utility model.
Claims (7)
1. a vacuum booster epithelium, there is relative first surface and second surface, it is characterized in that, center at this epithelium is provided with through hole, there is a curled portion at the edge of this epithelium, at this first surface and/or this second surface, be distributed with many reinforced ribs that this curled portion of mind-set is extended from this epithelium.
2. vacuum booster epithelium as claimed in claim 1, is characterized in that, these many reinforced ribs are divided into many groups, and the circumferential distance between the adjacent reinforced rib in every group, is less than the each group of circumferential distance between reinforced rib.
3. vacuum booster epithelium as claimed in claim 1, 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, is distributed with the fold of multi-turn circumferencial direction on this epithelium.
5. vacuum booster epithelium as claimed in claim 4, 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, is also distributed with two centrosymmetric apertures with respect to this epithelium on this epithelium.
7. a vacuum booster, comprises the vacuum booster epithelium described in claim 1-6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420430363.4U CN203996199U (en) | 2014-07-31 | 2014-07-31 | Vacuum booster epithelium and vacuum booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420430363.4U CN203996199U (en) | 2014-07-31 | 2014-07-31 | Vacuum booster epithelium and vacuum booster |
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| Publication Number | Publication Date |
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| CN203996199U true CN203996199U (en) | 2014-12-10 |
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| CN201420430363.4U Active CN203996199U (en) | 2014-07-31 | 2014-07-31 | Vacuum booster epithelium and vacuum booster |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313867A (en) * | 2014-07-31 | 2016-02-10 | 上海大陆汽车制动系统销售有限公司 | Vacuum booster and leather diaphragm thereof |
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2014
- 2014-07-31 CN CN201420430363.4U patent/CN203996199U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105313867A (en) * | 2014-07-31 | 2016-02-10 | 上海大陆汽车制动系统销售有限公司 | Vacuum booster and leather diaphragm thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |