| 摘要 |
PURPOSE: A handle safety on a door lock is provided to prevent the door lock from becoming open even if the inner handle is compulsorily rotated by the insertion of an improper tool, since the handle rotates only if a push button is pressed. CONSTITUTION: A handle safety on a door lock comprises a handle(100), a push button, a shaft(300) and a connector(400). A slide hole(140) is formed on the inner center of the handle. The push button is movably connected to the slide hole and comprises a locking member(220). One end of the shaft is inserted into the push button and the other end is integrated with the key of the door lock. The connector comprises a coupling groove(410), which is connected to the outside of the shaft, is inserted into the locking member of the push button and is engaged. The spring is installed between the connector and the push button.
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