Movable safety door lock
A security door lock, mobile technology, applied in the direction of building fastening devices, buildings, building structures, etc., can solve the problems that outsiders are easy to enter the room, there is no anti-lock device, and the security effect is not very satisfactory.
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[0014] Such as figure 1 , 2 As shown in , 3 and 4, a mobile safety door lock is composed of a locking device 1 and a buckle 2, the lower end of the brace 3 of the lock is a right-angled buckle 4, and the back of the brace 3 protrudes The elongated tenon 5 is slidably connected in the mortise 20 on the side of the lock pin 24 facing the back of the locking device. A swing arm 17 is provided in the inner cavity of the shell above the lock pin 24 to drive the lock. The swing arm 17 Rotately connected by the shaft pin 18, one end of which is connected to the support plate 3 of the locking member, and the other end is connected to the brake lever 9, and the big ratchet 6 and the small ratchet 7 which lock the brake lever to move up and down are integrated with each other concentrically and axially, and the brake lever The ratchet 10 on the 9 meshes with the small ratchet 7, and the ratchet is coaxially sleeved with the return spring 8, the return spring 8 can be a mainspring, the ...
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