Piston for brake
The utility model provides a brake piston which is characterized in that the brake piston comprises a body, a protruding ring protruding in the circumferential direction, a first boss and a second boss are arranged on the body, the first boss is located on one side of the protruding ring, the second...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The utility model provides a brake piston which is characterized in that the brake piston comprises a body, a protruding ring protruding in the circumferential direction, a first boss and a second boss are arranged on the body, the first boss is located on one side of the protruding ring, the second boss is located on the side, away from the protruding ring, of the first boss, and the protruding ring, the first boss and the second boss are coaxially arranged. The diameter of the protruding ring is larger than that of the first boss, the diameter of the first boss is larger than that of the second boss, a circumferential first sealing groove is formed in the protruding ring, and a second sealing groove is formed in the circumferential direction of the first boss. The first sealing groove and the second sealing groove are formed in the circumferential direction of the convex ring and the circumferential direction of the first boss respectively and used for being sealed with the shell, sealing with the shell can |
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