Mechanical Key lock push-button switch

Description of the structure of the key lock switch

The key lock switch is a switch that uses a key to disconnect and connect the circuit, and is mostly used in important control circuits.

Concept: Generally speaking, a key lock switch is a lock that adds technology to realize the function of a switch. It is to bring safety during the work process and realize the integration of the key and the switch to control the power supply. Bring (elevator, security, electromechanical equipment, medical equipment) preventive effect to various special industries. Because the key lock switch needs to be connected to the power supply, it is also called the power switch lock.
Key lock switch category distinction:
One: According to the use of current and voltage, it can be divided into low-voltage key lock switches (such as 4A, 2A and below) and so on. High voltage key lock switch (10A, 16A, and above). The low-voltage key lock switch generally does not require any safety regulations because of its small current, it only needs to comply with environmental protection. High-voltage key switches require safety certification, such as: CCC, CE, UL, etc.Two: Distinguish according to the size of the hole used: large key lock switch, small key lock switch. The main opening sizes of small key lock switches are (such as: 6mm, 8mm, 12mm, 16mm, 19mm, etc.). The main opening sizes of large key switches are (eg: 22mm, 25mm, 28mm, 30mm, 36mm, etc.)three. According to the number of control switch circuit groups, it can be divided into single group circuit key switch, double group circuit key switch and multiple group circuit key switch. A single circuit key lock switch means that it can only control one circuit. Double key switch: refers to the key switch that can control two sets of electricity at the same time. This type of lock is divided into the same connection and the same disconnection. With one set on and the other set off both. Simultaneously connected and simultaneously disconnected power locks: Refers to the power on or off of two sets of lines at the same time. A power lock with one group connected and one group disconnected: It means that among the two groups of lines, one group is always disconnected and the other group is connected, which cannot be connected or disconnected at the same time.Four: Distinguish according to the key: it can be divided into strip power lock and bead power lock (that is, flat key lock switch and round key lock switch). The chip-arranged power lock is that the lock cylinder uses a row of chips (there are generally 4, 7 or 10 chips; the more the chips are, the more the number of miscellaneous numbers) is used to rotate with the key, and the key also distinguishes between single-sided teeth and double-sided teeth. The round key is the lock cylinder with copper beads inserted (the number of bead groups is generally divided into 0, 4 and 7, the more beads, the more miscellaneous numbers). The key is round, and the round key should also be cleaned, and the unevenness can be matched with the copper beads on the lock to open the key.Five: According to the key rebound and non-rebound function, the automatic rebound key lock switch can be distinguished (the so-called rebound is the original position where the key rebounds without external force when the key is turned to a certain position.
Automatic rebound power lock models are: 106M; 202DA; 203M; 203AM; 203BM; 212ZA; 2012, etc.). The key lock switch does not rebound, that is, the key stays in that position wherever the key is turned.

Six: According to the key extraction (-1 = single extraction and -2 = double extraction). The key can be divided into single draw (pull) or double draw (pull), or multi-draw. The single pull is a place where the key can be inserted and removed. Double draw means that when the key is turned, the key can also be pulled out, which is double draw. Multi-drawing means that the key can be pulled out from more than three places (such as our 2012, 1231, etc.).

Seven: The key rotation direction of the key lock switch:
Generally, the key turns clockwise, 0 (12 o’clock direction) – 45 degrees, 0-90 degrees (3 o’clock direction), 0-180 degrees (6 o’clock direction), 0-270 degrees (9 o’clock direction). There are also left and right turns 270-0-90