CN2387205Y - Lock master - Google Patents

Abstract

The utility model relates to a lock core, which comprises a lock core body and a pin tumbler slot and a key slot in the lock core body. The utility model is characterized in that the inner part of the lock core body on one side of the pin tumbler hole is tightly inlaid with a high-hardness metal block which is made of carbon steel and is distributed in the lock core body in a triangular. The utility model overcomes the defect that a common lock core has poor drilling resistance. The utility model has the advantages of simple structure, easy fabrication, low cost and high anti-theft performance. The utility model is suitable for the use of the locks using the lock cores of pin tumblers.

Description

Lock core

The utility model relates to a kind of lock core.

Known lock core all comprises key and pellet shot from a slingshot hole in lock core body and the lock core body, and the material of lock core body generally adopts metallic copper.Because the hardness of copper material is not strong, therefore the burglar often adopts by the portable hand drill gun and drills through lock core, destroys the pellet shot from a slingshot in the pellet shot from a slingshot hole and the method for spring, makes pellet shot from a slingshot in the pellet shot from a slingshot hole cooperate inefficacy with pellet shot from a slingshot hole in the tapered end, after lock core was rotated, parts such as door, the drawer etc. of dress lock just be opened.Therefore, there is the not strong defective of anti-drilling performance in this common lock core.

The purpose of this utility model is the above-mentioned defective that overcomes prior art, thereby provides a kind of simple in structure, the lock core that anti-drilling performance is strong.

The utility model comprises key and the pellet shot from a slingshot hole in lock core body and the lock core body, tight embedding high rigidity metal derby in the lock core body of pellet shot from a slingshot hole one side.

The high rigidity metal derby triangularity that tightly is embedded in the lock core body is fractal.

Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1.

As shown in the figure, the utility model comprises key 2 and the pellet shot from a slingshot hole 3 in lock core body 1 and the lock core body 1, lock core body 1 is made by copper material, tight embedding high rigidity metal derby 4 in the lock core body 1 of pellet shot from a slingshot hole 3 one sides, high rigidity metal derby 4 adopts carbon steel, it is in triangular distribution in lock core body, can certainly adopt other distribution shape.Under user mode, if the burglar bores lock core with power drill, at first will run into the high rigidity carbon steel like this, the route that drill bit advances changes, and promptly can not destroy the pellet shot from a slingshot in the pellet shot from a slingshot hole, even bore whole lock core, the sealed relation of tapered end can be not destroyed yet.

The utility model strengthens the anti-drilling performance of lock core by above-mentioned concrete setting greatly, has structure Simply, cost is low, and is easily manufactured, and the advantage that theftproof performance is strong is adapted at all kinds of employing lock cylinders Use in the lockset.

Claims (3)

1, a kind of lock core comprises key and pellet shot from a slingshot hole in lock core body and the lock core body, it is characterized in that tight embedding high rigidity metal derby (4) in the lock core body (1) of pellet shot from a slingshot hole (3) one sides.

2, lock core according to claim 1 is characterized in that: the high rigidity metal derby (4) that tightly is embedded in the lock core body (1) is in triangular distribution.

3, lock core according to claim 1 and 2 is characterized in that: high rigidity metal derby (4) adopts carbon steel.