The working principle and composition of padlocks - Electronic Lock System | Key Access Control Solution - Vanma

The Working Principle and Composition of Padlocks

For many people, getting a padlock is a serious business. Padlocks are one way to keep property safe. As for how to choose the padlock that suits us, we need to understand the padlock


What is a Padlock?

A padlock is a removable or portable lock with a curved shackle that can be passed through a loop or other loop to lock. It is mainly composed of lock beam and lock body.

Is there an unpickable padlock?

Many companies advertise that their locks are unpickable . The truth is, there are no padlocks that cannot be picked. Any padlock can be picked easily by a professional locksmith. Although many locks do have high security, they can still be picked.

How do padlock work?

A padlock is made of different parts. All these parts work together to ensure
that your padlock secures your property. The parts of a padlock include:

Shackles: Shackles are the u-shaped feature on the top of the padlock. They fit into the notches to form part of the lock mechanism.

Notches: To lock a padlock, each end of the shackle needs to be aligned with the hole in the lock body. Once you apply pressure, you will feel the internal locking mechanism click into place once it aligns. Inserting the right key into the keyhole at the bottom of the lock body and rotating it causes the padlock to unlock.

Plug: Once the key is turned, it will cause the plug to rotate. Plugs have several holes in the top, and each hole contains a small metal cylinder called a key pin. Every key pin is a different height, corresponding to the profile of the key.

 Other parts of a padlock include: Key pins, Chambers, Pin, Shear line, Latches, Springs, Arm

How to pick up padlock?

To open a padlock, the key needs to be inserted into the plug. The key pins will rest in several holes in the plug and move up and down to follow the profile of the key. Once the correct key is inserted, then the keys will align at the top of the lug. This will push the driver pins out of the plug holes into their respective chambers. The springs ensure that the driver pins will be forced into the holes if no key or the wrong key is inserted.

Once all the pins are cleared, the key can rotate the plug. At the end of the plug, there is a cam situated which also rotates with the plug. This causes the arms of the two latches to connect. The latches are pushed out by a spring, pushing the arm against the cam while also pushing the latch into a notch on the shake, stopping the lock from being opened without a key. Once you have the correct key inserted, the plug rotates freely, causing the cam to rotate and pull the latches inward to release the shackle. Springs within the shackle chamber push the arm outwards, prompting the lock to release. A spring within the shackle chamber pushes the arm outward, releasing the lock.

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