Lock cylinder and antitheft mortise door lock adopting same

Abstract

The invention relates to a lock cylinder and an antitheft mortise door lock adopting the same, belonging to the field of antitheft products. In the lock cylinder, a rotating axle hole, a left locking cylindrical cavity, a left key surface, a left spring seat and a left limit fin are arranged on a left vane; a rotating axle hole, a right locking cylindrical cavity, a right key surface, a right spring seat and a right limit fin are arranged on a right vane; one end of a spring is buckled on the left spring seat, and the other end of the spring is buckled on the right spring seat; the left vane,the right vane and the spring form a vane group, and more than three vane groups are stringed into a rotating shaft from the rotating axle holes in a closely placed mode, and are encapsulated in a lock cylinder shell; a limit groove for placing the left limit fin and the right limit fin is formed on the wall of the lock cylinder shell; and a long groove for placing a locking cylinder is formed onthe lock cylinder shell. The lock cylinder has the advantages that: the lock cylinder has high vane density under a fixed length, stable performance, and strong prizing prevention, drilling prevention and technical opening resistance; and the antitheft mortise door lock has high safety, stable performance and the function of strong prizing prevention, drilling prevention and technical opening resistance.

Description

technical field [0001] The invention relates to a lock cylinder and a door lock adopting the lock cylinder, in particular to a lock cylinder with high leaf density and strong anti-prying, anti-drilling and anti-technical opening capabilities and an anti-theft plug adopting the lock cylinder core lock. Background technique [0002] The most widely used mortise lock is the Kaba lock. The Kabbah lock generally includes a lock body, a lock cylinder, a pin and a spring, a clutch and a puller. The pins of the Kabbah lock are cylindrical, and there are corresponding pin holes on the lock body and the lock cylinder. Each pin hole has two cylindrical pins and a spring. The pins are inserted between the lock body and the lock cylinder by the pressure of the spring. Pin pins are divided into spring pin pins and key pin pins. The key pin pins are always in the lock cylinder. One end of the spring pin pins is in contact with the key pin pins, and the other end is connected with the spr...

AI Technical Summary

Problems solved by technology

The leaves of most leaf locks do not have a rotating shaft, and the leaves do not rotate around the rotating shaft. Such leaf locks are not smooth enough. When the size of the lock is small, such as the small size of "mortice lock", Page lock is not smooth enough

[0006] Chinese patent 2009201571442 proposes a leaf lock with a rotating shaft on the leaf, and the leaf rotates around the rotating shaft. Therefore, such a leaf lock should be relatively smooth, but because the design requires a lock cylinder, in most cases, The length of the lock is limited, and the lock core has a certain thickness interval, which reduces the number of plates placed in the lock of the same length, resulting in low security; the lock core must pass through the plates, so as to ensure that it can be used as a lock cylinder When idling, the relative position between each leaf and the lock cylinder remains unchanged, otherwise it cannot work normally; but the lock cylinder passes through the leaf, making the leaf become a semi-circular ring, which greatly weakens the bending strength of the leaf, when inserted or pulled out When the key is released, the thrust to the leaf will cause the semi-circular leaf to bend and not work normally; More than one millimeter, it is easy to be bent by the key, so it is difficult to apply to the mortise lock; in addition, the front end of the lock cylinder (key insertion end) of this patent is a boring structure, so the shaft must be inserted from the rear end, and the anti-drilling cover cannot be added. Can't do anti-drilling

Images