How to distinguish between single tongue lock and double tongue lock?
The first door is a door lock, is a family door, is home outside the watershed, it must have a special function, that is, the role of insurance security, so the door lock, also known as insurance lock or anti-theft lock, in the choice Should pay attention to the distance between the door and the door can not be less than 80cm, or your security door will be locked in the door locked and not on the security door.
The second is a channel lock, it is only the role of the door handle and hit the bead, this lock is not insurance function, apply to the kitchen, hall, living room, dining room and children's door locks.
The third lock for the bathroom lock, which is locked inside, in the door with a key to open, apply to the bathroom or bathroom.
The fourth lock is the bedroom lock, locked in the insurance inside, the outside must be opened with a key, apply to the bedroom and balcony door.
(Such as multi-tongue lock) and double lock (commonly known as the tiger lock), etc. Single tongue, double Tongue or tongue in the movement is generally horizontal direction; and double button (tiger) lock in the movement when the tongue was vertical direction.
