Bolt for vacuum apparatus

The invention relates a bolt for vacuum equipment, comprising bolt head [01] and bolt body [05]. Outer thread [02] is set on the outer edge face of bolt body [05], one via hole [03] is opened in the bolt body [02] along the axial direction and one via hole [04] is set along the vertical direction wi...

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Bibliographic Details
Main Author MINGZHANG,HAN CHU
Format Patent
LanguageEnglish
Published 25.04.2007
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 invention relates a bolt for vacuum equipment, comprising bolt head [01] and bolt body [05]. Outer thread [02] is set on the outer edge face of bolt body [05], one via hole [03] is opened in the bolt body [02] along the axial direction and one via hole [04] is set along the vertical direction with outer edge face of bolt body [05]. Axial air in the top between bolt and screw is removed conveniently by the axial via hole [03] and air between bolt and screw thread on the outer edge face of bolt is removed conveniently so as to help to obtain vacuum of vacuum equipment.
Bibliography:Application Number: CN20061114712