Support frame safety mechanism

The utility model relates to a safety mechanism of a supporting frame, the side board of a pivoting seat is pivoted with a framework of a fixed seat by a mandrel; the fixed seat is provided with a bolt in a penetrating way; the tail end of the mandrel is provided with a spring fixed board; a torsion...

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Bibliographic Details
Main Authors ZHENG GANGHAN, TANG ZHONGXUN
Format Patent
LanguageChinese
English
Published 06.05.2009
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The utility model relates to a safety mechanism of a supporting frame, the side board of a pivoting seat is pivoted with a framework of a fixed seat by a mandrel; the fixed seat is provided with a bolt in a penetrating way; the tail end of the mandrel is provided with a spring fixed board; a torsion spring is sheathed in the mandrel; and the two ends of the torsion spring are respectively fixed on the side board and the spring fixed board; when the tail end of the bolt is butted with the first stopping part of the side board, the framework forms the smallest supporting angle.
Bibliography:Application Number: CN20082133090U