Inner bolt lock with three rows of pin tumblers

The utility model discloses an inner bolt lock with three rows of pin tumblers. The inner bolt lock comprises a key, a plug, springs, slotted flat pin tumblers, a bolt groove steel ball, an inner bolt, a lock case, middle lower pin tumblers, middle upper pin tumblers, middle springs and sealing stee...

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Bibliographic Details
Main Author ZHU CHANGMING
Format Patent
LanguageChinese
English
Published 23.01.2013
Subjects
ACCESSORIES THEREFOR
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
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Summary:The utility model discloses an inner bolt lock with three rows of pin tumblers. The inner bolt lock comprises a key, a plug, springs, slotted flat pin tumblers, a bolt groove steel ball, an inner bolt, a lock case, middle lower pin tumblers, middle upper pin tumblers, middle springs and sealing steel balls, at least nine double-row pin tumbler holes are arranged in the plug, at least nine slotted flat pin tumblers and at least nine springs are placed in the holes, the slotted flat pin tumblers are provided with edge slots with different heights, toothed pits with different depths are machined on the key, a groove is arranged on one side of the inner bolt, the bolt groove steel ball is arranged in the groove, and the inner bolt enters the edge slots of the flat pin tumblers under the action of the bolt groove steel ball and a V-shaped groove of the lock case if the key is turned to drive the plug. A row of pin tumblers is additionally arranged between two rows of slotted flat pin tumblers and comprise the midd
Bibliography:Application Number: CN20122327816U