Sealing element with prolonged service life
The utility model relates to a sealing element capable of prolonging service life, which comprises an upper sealing body and a lower sealing body which are buckled, the upper sealing body and the lower sealing body are matched to form a containing cavity, a wave spring and a Y-shaped sealing ring ar...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a sealing element capable of prolonging service life, which comprises an upper sealing body and a lower sealing body which are buckled, the upper sealing body and the lower sealing body are matched to form a containing cavity, a wave spring and a Y-shaped sealing ring are arranged in the containing cavity, positioning grooves are arranged at two ends of the containing cavity, the Y-shaped sealing ring is arranged in the positioning grooves, and the wave spring and the Y-shaped sealing ring are arranged in the positioning grooves. The two ends of the wave spring abut against the Y-shaped sealing ring. When the sealing element is subjected to axial impact stress, part of stress can be absorbed by the upper sealing body and the lower sealing body, and then the rest stress is absorbed by the wave spring, so that the overall buffering effect of the sealing element is improved, the impact of a piston rod on a cylinder body is reduced, the damage to the cylinder body is reduced, and the |
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