Internal expanding self-locking type bolt

The utility model relates to the technology that other devices are combined with an expanding sleeve into a complete piece for being tightly fixed on the wall or on the inner of a similar member. The utility model relates to an internal expanding self-locking type bolt, comprising a screw cap (3), a...

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Bibliographic Details
Main Author YONGSHENG GE
Format Patent
LanguageEnglish
Published 12.11.1997
Edition6
Subjects
BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The utility model relates to the technology that other devices are combined with an expanding sleeve into a complete piece for being tightly fixed on the wall or on the inner of a similar member. The utility model relates to an internal expanding self-locking type bolt, comprising a screw cap (3), an inner expanding sleeve (1) twisted on the screw cap (3) and an inner expanding nail (2) inserted on the upper section of the inner expanding sleeve (1). The utility model has the advantages of material saving, firm fixation and rapid and convenient installation.
Bibliography:Application Number: CN1996228552U