CN212509291U - E-shaped leather cup of plunger type brake master cylinder - Google Patents
E-shaped leather cup of plunger type brake master cylinder Download PDFInfo
- Publication number
- CN212509291U CN212509291U CN202021016804.8U CN202021016804U CN212509291U CN 212509291 U CN212509291 U CN 212509291U CN 202021016804 U CN202021016804 U CN 202021016804U CN 212509291 U CN212509291 U CN 212509291U
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- CN
- China
- Prior art keywords
- leather cup
- lubricating grease
- sealing lip
- master cylinder
- sealing
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- 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.)
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- 239000010985 leather Substances 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- 239000004519 grease Substances 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
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- Transmission Of Braking Force In Braking Systems (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses an E-shaped leather cup of a plunger type brake master cylinder, which comprises a leather cup body, wherein a plurality of supporting teeth which are circumferentially arranged at intervals are integrally formed on an inner groove between an outer sealing lip and an inner sealing lip of the leather cup body, and the supporting teeth are in a concave shape or an isosceles trapezoid with an upper notch; the outer side wall of the inner sealing lip is provided with a radially outward convex sealing surface, an upper lubricating grease groove is formed between the upper end surface of the sealing surface and the outer side wall of the upper end of the inner sealing lip, and one or more inner lubricating grease grooves with triangular sections are arranged on the sealing surface. The utility model discloses a technical characteristics such as E type leather cup through setting up supporting tooth, sealed face, going up the lubricating grease slot, interior lubricating grease slot and polytetrafluoroethylene coating have improved the distortion intensity and the sealing performance of leather cup, have difficult emergence upset deformation, sealed effectual, long service life's characteristics.
Description
Technical Field
The utility model relates to a E type leather cup of plunger type brake master cylinder belongs to sealed technical field.
Background
With the development of automobile technology, the brake master cylinder is continuously updated, and now the plunger master cylinder has gradually replaced the piston master cylinder. The plunger type master cylinder has higher pressure, faster reciprocating motion and oil return compared with the piston type master cylinder, so the requirement on a sealing leather cup is higher. When the conventional leather cup is used, the leather cup is easy to overturn and deform and the sealing surface is easy to wear due to the high pressure and high speed of a master cylinder, so that the sealing failure is caused, the braking performance is influenced, and the defects are overcome.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough, the utility model provides a E type leather cup of plunger type brake master cylinder, the utility model discloses the technical scheme who adopts does:
a plurality of supporting teeth which are circumferentially arranged at intervals are integrally formed on an inner groove between an outer sealing lip and an inner sealing lip of the leather cup body, and the supporting teeth are in a concave shape or an isosceles trapezoid with an upper notch; the outer side wall of the inner sealing lip is provided with a radially outward convex sealing surface, an upper lubricating grease groove is formed between the upper end surface of the sealing surface and the outer side wall of the upper end of the inner sealing lip, and one or more inner lubricating grease grooves with triangular sections are arranged on the sealing surface.
Further, the sealing surface is coated with a polytetrafluoroethylene coating.
Furthermore, the upper end surface of the supporting tooth is higher than the upper end surface of the leather cup body.
The utility model has the advantages that: the E-shaped leather cup improves the torsional deformation strength of the leather cup by arranging the supporting teeth, and is not easy to turn and distort; the sealing surface is arranged to replace the existing sealing lip, so that the effective sealing contact area is larger, and the sealing effect is better; by arranging the upper lubricating grease groove and the inner lubricating grease groove, the lubricating property and the sealing effectiveness of the sealing surface are improved; by coating the polytetrafluoroethylene coating, the wear resistance of the sealing surface is improved, and the service life of the sealing surface is prolonged.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the structure of the present invention;
fig. 3 is a schematic view of the structure of the supporting teeth of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Example (b):
as shown in fig. 1-3, an E-shaped leather cup of a plunger type brake master cylinder comprises a leather cup body 1, wherein a plurality of supporting teeth 2 arranged at intervals in the circumferential direction are integrally formed on an inner groove between an outer sealing lip 10 and an inner sealing lip 11 of the leather cup body 1, and the supporting teeth 2 are in an isosceles trapezoid shape with an upper notch; the outer side wall of the inner seal lip 11 is provided with a radially outward convex seal surface 110, an upper lubricating grease groove 3 is formed between the upper end surface of the seal surface 110 and the outer side wall of the upper end of the inner seal lip 11, and the seal surface 110 is provided with an inner lubricating grease groove 4 with a triangular cross section.
Further, the sealing surface 110 is coated with a teflon coating.
Further, the upper end surface of the supporting tooth 2 is higher than the upper end surface of the leather cup body 1.
The utility model improves the distortion strength of the leather cup by arranging the supporting teeth, is not easy to turn and distort, and is clamped on the master cylinder body to improve the assembly firmness; the sealing surface is arranged to replace the existing sealing lip, so that the effective sealing contact area is larger, and the sealing effect is better; by arranging the upper lubricating grease groove and the inner lubricating grease groove, the lubricating property and the sealing effectiveness of the sealing surface are improved; by coating the polytetrafluoroethylene coating, the wear resistance of the sealing surface is improved, and the service life of the sealing surface is prolonged.
Claims (3)
1. The utility model provides a E type leather cup of plunger type brake master cylinder, includes the leather cup body, its characterized in that: a plurality of supporting teeth which are circumferentially arranged at intervals are integrally formed on an inner groove between an outer sealing lip and an inner sealing lip of the leather cup body, and the supporting teeth are in a concave shape or an isosceles trapezoid with an upper notch; the outer side wall of the inner sealing lip is provided with a radially outward convex sealing surface, an upper lubricating grease groove is formed between the upper end surface of the sealing surface and the outer side wall of the upper end of the inner sealing lip, and one or more inner lubricating grease grooves with triangular sections are arranged on the sealing surface.
2. The type-E cup of a plunger type brake master cylinder according to claim 1, characterized in that: the sealing surface is coated with a polytetrafluoroethylene coating.
3. The type-E cup of a plunger type brake master cylinder according to claim 1, characterized in that: the upper end surfaces of the supporting teeth are higher than the upper end surface of the leather cup body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016804.8U CN212509291U (en) | 2020-06-05 | 2020-06-05 | E-shaped leather cup of plunger type brake master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021016804.8U CN212509291U (en) | 2020-06-05 | 2020-06-05 | E-shaped leather cup of plunger type brake master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212509291U true CN212509291U (en) | 2021-02-09 |
Family
ID=74383194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021016804.8U Active CN212509291U (en) | 2020-06-05 | 2020-06-05 | E-shaped leather cup of plunger type brake master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212509291U (en) |
-
2020
- 2020-06-05 CN CN202021016804.8U patent/CN212509291U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An E-shaped cup for a plunger type brake master cylinder Effective date of registration: 20231117 Granted publication date: 20210209 Pledgee: Xuancheng Zhenxuan Financing Guarantee Group Co.,Ltd. Pledgor: XUANCHENG ANAN RUBBER & PLASTIC PARTS MANUFACTURE Co.,Ltd. Registration number: Y2023980066190 |