The ball lock was accidentally locked. How can I open it without a key?

Open the protective cover and unscrew it. If you are lucky, it will open soon and fall off at once. When you hit a ball with a hammer, it will open a hole.

It can be clipped out or picked out with sharp tweezers or needles, and the ball lock can be disassembled in this way. On the rear knob of the ball lock, that is, behind the door, there is a ball connected to a shaft, and there is a small hole here. You can directly see a relatively small button. All you have to do is use wire or scissors, press this button, and then pull out the ball shell to open it.

Extended data:

Maintenance method

1. In the process of opening and closing the door on weekdays, hold the handle and screw the locking bolt into the lock body, and then let go after closing the door. Don't slam the door hard, otherwise it will shorten the service life. Don't wipe the lock body and handle with wet cloth, because some metal locks will rust; Locks made of alloy will wear off the coating and lose their aesthetic effect.

2. The transmission part of the lock body should always keep lubricant to keep its transmission smooth and prolong its service life. It is recommended to check once every six months or once a year to check whether the fastening screws are loose and ensure fastening.

3. When the lock head is used, Jamlom graphite powder or pencil powder can be applied to the lock core groove regularly (half a year or one year) or when the key insertion and removal is not smooth, so as to ensure the smooth key insertion and removal. However, it is forbidden to add any other oil for lubrication, so as to avoid the grease sticking to the marble spring, which will make the lock unable to turn and open.

References:

Baidu encyclopedia ball lock