Forgetting my key is really urgent. I couldn't open the door, so I began to think of something. In order to avoid the damage of the lock, you can also learn some common sense about the use of the lock. Bian Xiao will show you how to unlock the ball without a key.

First, how to open the ball lock without a key

1. Touch the internal switch setting with sharp tweezers or a needle. There is a ball on the back handle of the ball lock, that is, behind the door, which is also associated with a shaft. There is a small hole here, which can be observed by naked eyes. There is a relatively small button, just use wire or scissors. Press this button to pull the ball shell out a little.

Second, how is the appearance of the ball lock qualified?

1, the appeaRance quality must be smooth, the surface roughness ra of polished parts should not be greater than 0.8μm, the sanded parts should not be greater than 6.3μm, and the machined parts should not be greater than 12.5 μ m. ..

2. When selecting products, the surface of the lock body is not allowed to have obvious defects that affect the quality. The key is smooth and clean, the trademark is clear and correct, and it is also a good quality product.

3. The corrosion resistance of the electrodeposited layer on the exposed surface of metal should meet the requirement that the hardness of the organic coated pencil should reach 2 hours, and the inclusion part will not affect the appearance, which is also the basic criterion.