Bicycle chain code lock is a very practical anti-theft tool, which combines the safety of traditional chain lock with the convenience of modern code lock. In this paper, we will discuss the design principle, usage and how to choose the appropriate bicycle chain lock.

I. Design principle

Bicycle chain code lock is mainly composed of two parts: a chain made of high-strength metal and a lock head integrated with a combination of numbers or letters. Its working principle is simply to control the lock's opening and closing through a set of specific codes (usually 46 digits) set by users. When the preset password is correctly input, the internal mechanical structure will change, so that the lock tongue can be pulled out or inserted, thus realizing the function of unlocking or locking. Compared with the traditional key lock, the password lock does not need to worry about losing the key, and is convenient for many people to share.

Second, the method of use

1. Set the initial password: before using it for the first time, you need to follow the steps in the manual to initialize and set a unique personal password.

2. Locking process: After the chain passes through the bicycle frame and the fixture, turn the cipher wheel to the preset serial number, and the lock body can be easily closed to complete the locking action.

3. Unlocking mode: Turn the password dial again until the set value is displayed, then you can easily open the lock catch, take out the chain and release the vehicle.

Third, the purchase guide

Material strength:

Link material: priority is given to products forged from high-quality alloy steel, which not only has high hardness and strong wear resistance, but also has good cutting resistance;

Lock shell material: generally, it is mainly made of zinc alloy, which has good corrosion resistance and can maintain stable working condition under bad weather conditions.

Password security:

Ensure that the selected model supports at least four characters, and a longer password means higher difficulty in cracking;

Try to avoid using combinations that are too simple and easy to guess, such as birthday date, as the password content.

Other considerations:

Portable convenience: for people who often need to carry it with them, it is recommended to choose a lighter and compact style, which is convenient for storage and does not occupy space;

After-sales service guarantee: try to buy well-known brand goods from formal channels, and pay attention to check whether the merchants provide warranty commitments, so that problems encountered in the future can be solved in time.

To sum up, the bicycle chain password lock is favored by the majority of cycling enthusiasts because of its convenient and safe characteristics. However, there are many kinds of such products in the market, and the quality is uneven. Therefore, consumers must make full research and comparison before buying, so as to ensure that they can buy products that are suitable for their own needs and have good cost performance.Commodities. I hope this article is helpful to you!

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