CN201045254Y - Lock core - Google Patents

Abstract

The utility model discloses a lock pin, in particular to a pick-proof lock pin, the structure of which is that the key hole of the lock pin is S-shaped or reverse S-shaped or of other irregular shapes. The utility model has the advantages that the burglarproof property of the utility model is excellent and the utility model is hard to prize up.

Description

Lock core

Technical field

The utility model relates to a kind of lock, particularly a kind of lock core.

Background technology

Existing lock core as shown in Figure 1, the lockhole 2 of lock body 1 is rectangle or regular shape.The thief very easily just can pry open lock with the simple flat instrument.Therefore, existing lock core theftproof is poor.

Summary of the invention

Provide a kind of theftproof good lock core at the shortcoming that has lock core now.

To achieve these goals, the scheme implemented of the utility model is: the lockhole of lock core is that serpentine or anti-serpentine and other are irregularly shaped.

The utility model has the advantages that: theftproof is good, is difficult for prying open.

Description of drawings

Fig. 1, existing lock core front view.

The front view of Fig. 2, the utility model lock core.

The outline drawing of lock tube in Fig. 3, the utility model.

Fig. 4, Fig. 5, Fig. 6, Fig. 7 are respectively the schematic diagram of the utility model blade.

The figure number explanation

1....... internal cylinder 11...... cylinder cam

2....... interior lock tube 3....... lockhole

4....... outer lock tube 5....... fastener

The specific embodiment

See also Fig. 2, Fig. 3, Fig. 4 illustrates its embodiment.Key is inserted in the keyhole 3, rotation internal cylinder 1, and cylinder cam 11 is rotated in the vacancy of interior lock tube 2 simultaneously.The vacancy of internal cylinder 1 also is 11 motions of restriction cylinder cam, and restriction cylinder cam 11 is moved in certain space.Fastener 5 can be along the radially freely-movable of interior lock tube 2 in the groove of interior lock tube 2.Internal cylinder 1 is made up of one group of blade, the shape of each blade such as Fig. 4, and Fig. 5, Fig. 6, shown in Figure 7.When internal cylinder 1 turns to certain position, when the groove of fastener 5 and outer lock tube 4 is blocked, just make the lock pinning.Rotate the groove that makes fastener 5 and internal cylinder when internal cylinder 1 and coincide, outer like this lock tube 4 can freely rotate, and has locked thereby just can open easily.

Lockhole 3 is arranged on the end face of internal cylinder 1, and lockhole 3 is serpentine or anti-serpentine.Lockhole 3 also can be other various non-regular shapes.General thief is the instrument reeve lockhole with metal, and then pries open lock.Because the lockhole of the utility model lock core adopts the shape of non-rule, so the thief just is difficult for injecting lockhole with common instrument.Make like this thief do not reach pilferage the mouth.

Claims (1)

1. a lock core is made of plug body, and the lockhole that it is characterized in that lock core is a serpentine.

Images