I just added decoration, have to change the lock, and how to choose the lock is not good or bad?
Key tooth-like: the opening rate is the lock and the key to open the ratio, can open the lock the key less, to prove that the lock more secure and reliable. Buy skills: pick the key above the number of teeth more, or teeth more special lock. Because the more the number of teeth of the key, or more special, lock the mutual open rate is lower, anti-theft performance is better. Select the key to the depth of the lock. Toothy is too flat, smooth, shallow, high opening rate, anti-theft performance is not good enough.
Test spring: spring is also good or bad determines the life of the lock. If the quality of the lock spring is not good, the handle is easy to sag, the life of the lock will be greatly reduced. Buy skills: try to lock the toughness of the spring, a good spring feel very soft, soft and hard moderate.
Listen to the sound of the use of copper-plated material for the lock, open the sound more boring, and copper or stainless steel lock sound is relatively crisp. Buy skills: with more than two of the products for comparison checks, compare whether they are solid and reliable. Check whether the lock is open and flexible. Check the product's insurance structure to see if it is smooth and unimpeded. It is recommended that each lock at least try more than 3 times.
Weigh the weight: If the lock lighter, lock the anti-theft performance and service life is not ideal. Buy skills: weigh the part of the lock, good quality lock cylinder is relatively heavy, the opposite is very poor quality. Weigh the whole lock. Pure copper and other high-quality materials made of locks feel heavier, and the use of copper and other materials made of the lock is relatively lighter.
First look at the surface: high-quality locks look clear, smooth surface is not rough. To see the lock, lock body, handle, handle and cover plate and other parts and related accessories are complete; check the plating parts (Figure), check the surface, feel the surface is smooth, in order to determine the quality of the lock coating quality; , Paint the surface color is bright and uniform, with or without rust, oxidation signs and damage.
