Dial type full mechanical code lock is also a kind of box type mechanical code lock, which is similar to box type mechanical code locks such as "sakin" and "logada": they are all disk type mechanical code locks, all have control lock tongue, coaxial operation input code and open lock tongue. However, there are great differences in the operation modes: "Shajin" type box mechanical code is locked by the operation shaft to connect the driving disc, and then the driving disc is transmitted in sequence to drive other coded discs. Therefore, when inputting the coded code, the knob should rotate forward for several times and then rotate for several times, and then input the coded code again and again. The dial type all mechanical code lock relies on a simple internal sequential code dialer to dial each code disk in sequence. From the external operation point of view, it is similar to the operation of the old dial telephone: starting from the starting point of the dial, scroll the dial clockwise to a digit, and then return to the starting point to input a secret code. Repeat this until the last code is entered, and then scroll the dial counterclockwise from the starting point to open the latch.

In addition, there are other differences between them:

1. The latch unlocking support of "Shajin" box mechanical code lock is always pressed on the code disc. When entering the code, the disc gap will roll to the support, which will have a small reflection. People with rich experience and high understanding can find out the code according to this feature. The latch unlocking support of the dial type full mechanical code lock leaves the code disc when inputting the code. As long as a small visual point is pressed on the code disc when unlocking, and the code disc stops at the moment. Therefore, the probability of probing the secret code by hand is close to zero.

2. After the lock tongue is closed, the "sand gold" type box mechanical code lock needs to manually roll the knob for a few more turns to mess up the position of the code disc. While the lock tongue is open, the position (reset) of the code disc has been actively moved internally. Therefore, after the lock tongue is closed, it is necessary to re-enter the code before re unlocking, and the code will not be retained artificially.

3. The knob of "Shajin" type box mechanical code lock shall be engraved with 100 scales at 360 degrees, and the viewpoint between each scale is only 3.6 degrees. Be very careful when rotating and inputting. The dial type full mechanical code lock is only engraved with 12 integer scales on the scale of less than half a circle, and there is a distance of 12.5 degrees between each scale. When inputting the code, it is allowed to stay on the scale of plus or minus 0.4 scales of the scale, which recognizes the input of the integer value of the scale. Therefore, it is a quasi digital input. Its available codes are arranged in sequence from small value to large value, which can be selected and changed by the owner at will without blind area.

4. When inputting the code, the dial type full mechanical code lock scrolls clockwise from the starting point to the last scale. It only needs 165 degrees, less than half a circle, and then returns to the starting point to input the next code. During operation, the hand can hold the knob in a holding posture and input all the secret codes. Unlike the "sand gold" type box mechanical code lock, it needs to rotate several times and turn back frequently.

5. The number of code digits of "Shajin" type box mechanical code lock is fixed, while the number of code digits of dial type full mechanical code lock is variable. For the code lock with up to 6-bit code, the number of code bits can be selected between 0-6 bits. If the 3-digit code is selected, it can only be limited to 3 digits. If you enter 4 digits, you can't unlock. This provides a wider choice for users in different places.

Article source: Zhongshan mechanical lock manufacturerhttp://www.zshaochangsheng.com/