Spring lock

Abstract

The invention discloses a spring lock. The spring lock comprises a lock case, a square shaft, a lock cylinder and a fixing bracket for fixing the lock case to a door body, wherein the lock case is arranged on the fixing bracket; the lock cylinder is arranged in the lock case; the square shaft comprises a connecting shaft and an extending shaft; the front end of the connecting shaft is rotatably inserted into the lock case while the back end of the connecting shaft is square and is exposed out of the lock case; one end of the extending shaft is connected to the back end of the connecting shaftthrough a shaft sleeve while the other end of the extending shaft is a free end which is square; the shaft sleeve is arranged through the fixing bracket; a first bearing is arranged between the shaftsleeve and the fixing bracket; the first bearing is arranged on the shaft sleeve in a sleeving manner; a second bearing is arranged between the connecting shaft and the lock case; the second beraing is arranged on the connecting shaft in a sleeving manner; the connecting shaft is linked to the lock cylinder; and a separating part for separating the lock cylinder and the connecting shaft is arranged between the connecting shaft and the lock cylinder. The spring lock disclosed by the invention is simple and reasonable in structure, avoids a locking phenomenon of the square shaft and the lock case, and is easily combined with a coded lock in use.

Description

technical field [0001] The invention relates to the technical field of locks, in particular to a tumbler lock which operates smoothly and is not easily jammed. Background technique [0002] Pin locks, also known as marble locks, bead locks, deadbolt locks, or pin locks, are the most common lock construction. The principle is to use a plurality of cylindrical parts of different heights, which are called lock springs, marbles or beads, to lock the lock cylinder and limit the rotation of the lock cylinder. When the correct key is put in, each marble is pushed to the same height, and the lock cylinder is released and can be rotated, thereby driving the square shaft to rotate to realize unlocking. However, the existing pin locks are usually used in conjunction with combination locks. Direct unlocking, on the other hand, you can use the motor to drive the square shaft to rotate to unlock by inputting the password. After the square shaft is driven to rotate, the square outer edge ...

AI Technical Summary

Problems solved by technology

When the correct key is put in, each marble is pushed to the same height, and the lock cylinder is released and can be rotated, thereby driving the square shaft to rotate to realize unlocking. However, the existing pin locks are usually used in conjunction with combination locks. Direct unlocking, on the other hand, you can use the motor to drive the square shaft to rotate to unlock by inputting the password. After the square shaft is driven to rotate, the square outer edge of the square shaft is likely to be stuck with the lock casing, making the unlocking difficult, but the existing The combination of the tumbler lock and the combination lock is also very poor. It is difficult to unlock the lock with a key alone through the same square shaft, or unlock it with a password or fingerprint alone. The two are prone to conflicts. The successfully combined product is large in size and has complicated parts. easily damaged

Images