Annular hydraulic jack

The utility model discloses an annular hydraulic jack relates to hydraulic pressure technical field, and it is equipped with the annular piston including annular cylinder body, annular cylinder body endotheca, is provided with the sealing washer between annular cylinder body and the annular piston,...

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Bibliographic Details
Main Author LYU YUQUAN
Format Patent
LanguageChinese
English
Published 22.02.2017
Subjects
HAULING
HOISTING
HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:The utility model discloses an annular hydraulic jack relates to hydraulic pressure technical field, and it is equipped with the annular piston including annular cylinder body, annular cylinder body endotheca, is provided with the sealing washer between annular cylinder body and the annular piston, sets up jaggedly between annular piston top surface and the side, and annular cylinder body upper portion is connected with the cylinder cap of sealing the breach, the inlet of direct annular cylinder body inner chamber bottom surface is seted up to annular cylinder body lower part, annular cylinder body upper portion outer wall is provided with the drainage mouth. The utility model discloses ship propeller be can solve and operation inconvenience and the difficult problem of jack liquid way processing are joined in marriage, are installed with scraping of stern axle.
Bibliography:Application Number: CN20162855419U