| 摘要 |
This invention can be used to improve working and living conditions, namely, the shock absorber construction of living and public buildings front doors. The object of this invention, whose prototype is the automobile shock absorber, is a front door hydraulic shock absorber (Fig.1), which consists of the casing (7), a working cylinder, piston with a gaskin fixed on the movable rod (5) and spindle (6). It is suggested to make the spindle washer without opening, hide all piston openings with a special metal partition, make two extended grooves (2, 3) in the inner working cylinder's wall, which would be separated from each other by the partition and to two hole openings (1).The suggested shock absorber construction is secure, has a longer service life and low prime cost.<IMAGE>
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