| 摘要 |
PURPOSE: A burglarproof device for a bicycle is provided to effectively prevent a bicycle from being stolen by generating alarms when a wire for binding the bicycle is cut. CONSTITUTION: A burglarproof device comprises a main body(10), a lock(30), a wire(40), an alarm, and a speaker(60). An electric device with a battery is installed inside the main body. A cover(11) is detachably installed in the main body in order to replace the battery. The lock releases a locking unit when a key is inserted and is rotated. The wire is connected to one side of the main body and is detachably installed in a fixing hole of the main body. The alarm is electrically connected to the lock and the wire and senses the cutting of the wire. The speaker generates alarms to the outside when the alarm is operated.
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