Piston capable of preventing cylinder scuffing
The piston is arranged in a cylinder barrel, the outer wall of the piston is in clearance fit with the inner wall of the cylinder barrel, a first groove body, a second groove body and a third groove body are sequentially formed in the outer wall of the piston from left to right at intervals, a dirt...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The piston is arranged in a cylinder barrel, the outer wall of the piston is in clearance fit with the inner wall of the cylinder barrel, a first groove body, a second groove body and a third groove body are sequentially formed in the outer wall of the piston from left to right at intervals, a dirt containing ring is arranged in the first groove body, and a dirt containing groove is formed in the second groove body. The second groove body is provided with a guide ring, a sealing assembly is arranged in the third groove body and comprises an opening sliding ring and an O-shaped ring, the O-shaped ring is arranged on the inner side of the opening sliding ring in a sleeving mode, the opening portion of the opening sliding ring is of a step-shaped structure, and the step-shaped structures are attached to each other so that the two ends of the opening sliding ring can be connected in a sealed mode. By means of the mode, the cylinder score prevention piston can prevent the cylinder score situation through a new sea |
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