Blade lock

Abstract

The invention discloses a blade lock which comprises a lock shell and a lock core. The blade lock is characterized in that a key is inserted into a key hole of the lock core. A safety rod lifting groove which is communicated with the key hole is reserved on one side of the key hole. A safety rod is disposed in the safety rod groove. A safety rod protruding block is disposed at the lower end of the safety rod. A blade hole is further reserved on the lock core. A plurality of blades which are tightly connected and can move transversely in the blade hole are disposed in the blade hole. A blade inner hole for insertion of the key is reserved on each blade. A blade clamping block is disposed in each blade inner hole. An upper clamping groove for clamping the safety rod is disposed at the upper end of the each blade. A key groove which is matched with the blade clamping blocks is reserved on the key. A concave key groove which is matched with the safety rod protruding block is reserved on the upper end face of the key. The blade lock is high in antitheft performance, fine in antitheft performance, quite low in mutual unlocking rate, quite high in key scale, and convenient to use.

Description

【Technical field】 [0001] This invention relates to blade locks. 【Background technique】 [0002] At present, the traditional springless blade lock is generally composed of a lock cylinder and a shell. The blades can rotate at a certain angle in the lock cylinder. Each blade is provided with a hole for the key to be inserted. After the blade rotates at a certain angle, the bumper on the lock cylinder falls and snaps into the blade upper groove at the upper end of the blade, and the key can drive the lock cylinder to rotate relative to the housing to unlock. [0003] The defects of the above-mentioned springless blade lock head are: 1. Since the blade can be rotated directly in the lock cylinder, it is easy to turn the blade with foreign matter, and the anti-technical opening performance is not very good; 2. During use, the blade is subjected to external forces such as vibration Rotation also can take place when rotating, causes the key slot on the blade to be inconsistent, an...

AI Technical Summary

Problems solved by technology

[0003] The defects of the above-mentioned springless blade lock head are: 1. Since the blade can be rotated directly in the lock cylinder, it is easy to turn the blade with foreign matter, and the anti-technical opening performance is not very good; 2. During use, the blade is subjected to external forces such as vibration Rotation will also occur when turning, causing the key slots on the blades to be inconsistent, and the key needs to be rotated and inserted repeatedly, which is very inconvenient to use; 3, the multiple blade holes of the above-mentioned blade lock head are inconvenient to process

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