When purchasing a U-shaped lock, in order to ensure good anti-theft effect, we need to consider factors such as lock cylinder, lock grade, and ease of use. So, what are the specific U-shaped lock selection techniques? Let's take a look together below.
1. Observe the appearance quality of the U-shaped lock, including whether the lock head, lock body, lock tongue, handle, cover plate components, and related supporting parts are complete, whether the surface color of the electroplated and painted parts is bright and uniform, and whether there are signs of rust, oxidation, and damage.
2. Check whether the use function of the U-shaped lock is reliable and flexible. Two or more products should be selected for comparison and inspection. Especially when purchasing a lock with a two-way lock head, all keys must be used to test the opening and closing of the inner and outer lock heads respectively. It is also recommended to check the insurance mechanism of the product and try each lock at least three times.
3. Check the lock core: The quality and anti-theft performance of a padlock depend on its lock core. When choosing, it is important to check whether the lock core is flat as a whole, and whether there are any problems such as curling or burrs. If it cannot be determined by the naked eye alone, you can also try using a key to see if the lock core rotates flexibly and whether it can be inserted or removed flexibly. If there are any problems, it is best not to choose.
4. Trial operation: For adjustable U-shaped locks, the surface of their fixed teeth must be smooth, neatly distributed, and consistent. When choosing, you can repeatedly push and try to see if it is smooth. Some products may not show any problems from the surface. If there is a jamming during the operation, it indicates poor workmanship and it is best not to choose.
