Anti-prize scrambling alarm lock

• Main Authors: DEXI TONG, BO TONG, XIAOGUANG YU
• Format: Patent
• Language: English
• Published: 04.08.1999
• Edition: 6
• Subjects: ACCESSORIES THEREFOR; FIXED CONSTRUCTIONS; HANDCUFFS; KEYS; LOCKS; SAFES; WINDOW OR DOOR FITTINGS

The utility model belongs to the field of the building hardware. The utility model relates to an anti-prize hand-sensing secrecy alarm lock. A lock body comprises a front plate, a middle plate and a back cover plate. A front plate surface has four handles. Four sleeve barrels are penetrated through both surfaces of the middle plate. Three gears are arranged on one surface. Three number discs and a locking disc are arranged on the other surface correspondingly. A stop collar causes the three number discs and the locking disc to be fixed on both surfaces. Marbles are arranged between the gears. A locking connecting plate with a locking connecting rod which is slid left and right is arranged in a baffle plate of the locking connecting plate. Locking gaps are arranged on the locking disc and number disc surfaces. Holes are arranged on the number disc surfaces. The gaps which are not positioned are arranged on the outer circle. The gaps the quantity of which is unequal are arranged on the outer circle. A limited barrel, a limited plate and an alarm binding post which are corresponding to the quantity of the handle are arranged on the inner surface of the back cover plate. The utility model is connected with the ordinary lock to use. The utility model has the advantages of increased secrecy safety, simple manufacturing technique, less investment, and wide purpose.