[Padlock specifications] What are the specifications of padlocks and how many types of padlocks are there?
What are the specifications of padlocks?
There are many varieties and specifications of padlocks, and the styles are C, E, SBE, G and other specifications. Generally, the size of the lock is determined by the width of the lock body, the use of the lock is determined by the height of the lock beam, and the series of the lock is determined by the opening modes of the padlock such as straight opening, horizontal opening, top opening and double opening. The lock body of E-type, SBE-type and C-type padlocks is made of superhard alloy steel, and the shell hardness is higher than 56 degrees. G-type padlocks are made of zinc alloy, and all padlock hooks are made of boron or manganese alloy, which can bear shearing force of 2550-10200 kg force and pulling force of 1530-10200 kg force.
Generally, our common padlocks are opened in two ways: straight and horizontal. That is, when the key is inserted into the key slot of the lock core, it can be pulled up without rotation, which is called "top lock". This kind of padlock is especially suitable for openers holding babies or carrying things that are not suitable for putting down. The so-called "double-open padlock" refers to a lock that can only be opened when two keys are working. It has strong confidentiality and is suitable for occasions where two people need to keep it and two people are present at the same time to open the lock, such as warehouses, banks and so on.
What kinds of padlocks are there?
Padlocks can be classified according to the internal structure of padlocks in addition to the opening modes (straight opening, horizontal opening, top opening and double opening). The common ones are as follows:
1. Marble structure padlock
This kind of lock uses cylindrical marble to set obstacles in the lock core, so that the lock core can not rotate and achieve the function of locking. The marble structure is also one of the commonly used structures of locks. There is a kind of lock whose lock body is made of overlapping metal sheets, giving people a thick and firm feeling, which is called "thousand-layer lock", but its internal structure is also a marble structure, so it also belongs to a marble structure padlock.
2. Padlock with blade structure
This kind of lock uses sheet metal with different shapes to act as a barrier and achieve the purpose of locking. This kind of structure is often used in zinc alloy or its word alloy locks.
3, magnetic structure padlock
According to the principle of magnetic repulsion, a magnetic lock core system is adopted. A permanent magnetic metal partition plate with the same magnetic plate as the key is installed between the lock core slot and the safety pin. The key and the safety pin are not in direct contact. When the slotless magnetic key is smoothly inserted into the lock core slot for rotation, the key touches the metal partition plate, which generates a strong repulsive force and opens the lock easily. In addition, the principle of magnetic attraction is adopted to attract the metal plate tightly and open the lock by spring.
4. Chain structure padlock
It consists of a main lock and an auxiliary lock, and the main lock and the auxiliary lock have the function of mutual protection. Connecting two auxiliary locks means locking the main lock, and the main lock can only be opened after opening and removing the two auxiliary locks.
5. Number structure padlock
A sliding plate mechanism is installed in the lock body shell of the lock, and its hole is connected with the groove, which can move and rotate. The number plate is connected with the rotator, which is equipped with tooth-shaped or cam-shaped metal blades, which can rotate and move. As long as the number is set correctly, the lock can be opened automatically. This kind of lock has no key.
How to open the padlock
Generally, padlocks have a lock core. In addition to the hole for inserting the key, there are several round holes in the lock core. These round holes correspond to those on the lock body, and a spring and two copper marbles with different heights can be placed inside. After the key is inserted, the two marbles are pushed to different heights due to the different tooth positions. If the boundary between the two marbles in all holes is equal to the circumference of the lock core, the lock core can rotate in the lock body, so the lock is opened. This is how a general padlock works.
If the key of the padlock is lost, you can buy a master key, which can open a variety of padlocks. Here also share some tips provided by netizens:
1. Take a tough thin hard metal wire (the one on the key chain is good), bend a small part of one end into an angle of about 135, and extend it to the deepest part of the keyhole to turn (it needs more practice, which is a bit difficult).
2. Lock-and-unlock method: add a thin metal wire to a metal sheet, which is like the one on a pen cap, with one end folded at 90 degrees, and the lock hole is used for rotating force. The metal wire sweeps back and forth near the marble in the lock hole, so it can be opened with luck.
Laiwu wanbao unlocking and changing lock core with car key