CN1277304A - Lock core drilling-preventing structure - Google Patents

Abstract

The present invention features that outside lock core, there is one drilling-preventing protecting cover of hard steel. The cover is fixed by pin and embedded to lock body and has opening corresponding to the key hole of the lock core. The present invention can prevent drilling lock core and thus raise the anti-theft performance of lock and increase its service life.

Description

Lock core drilling-preventing structure

The present invention relates to a kind of theft-prevention structure of lock, particularly relate to a kind of lock core drilling-preventing structure of destroying from the exposed parts of lock core of preventing.

Lock is the article commonly used during people live, although the structure of lock is different, various informative, but most lock all has a lock core, we can say that it is the brain or the heart of lock, because the end face and the spoon inlet of the lock core of various locks all are exposed to the outside, and lock core is mostly made by the softer copper material of material, thereby become the primary destruction target of thief, also be the place that people should consider emphatically when designing theftproof lock certainly.Yet traditional lock core drilling-preventing structure just adds one to multiple anti-drilling steel nail in the cipher code set outside of lock core body, to play anti-drilling effect.But in fact because the lock core area that anti-drilling nail protected is limited, so anti-drilling effect also can only be local, especially exposed parts can not reuse owing to unshielded structure is difficult to avoid being damaged.

The present invention improves at the problems referred to above exactly, and its purpose is to provide a kind of whole exposed face that makes lock core all to obtain the lock core drilling-preventing structure that protects, and improving the theftproof performance of lock, and prolongs its application life.

For achieving the above object, the invention provides a kind of lock core drilling-preventing structure, it is characterized in that being provided with an anti-drilling guard shield at the end face that exposes of lock core, have on this guard shield with lock core on the corresponding spoon inlet of spoon inlet.

Described anti-drilling guard shield is placed in lock core end outer rim, and by dowel fixes, and anti-drilling guard shield and lock body are inlayed fixing.

Described anti-drilling guard shield is made by the hard steel.

Drilling-preventing structure of the present invention is applicable to various types of padlocks.

The present invention has broken the anti-drilling pattern of traditional lock; by having added anti-drilling guard shield on the end face exposing of lock core; make anti-drilling area by the lock core of making than softwood matter by local expansion to the whole end face that exposes; thereby any exsertion part brill lock of person that do not avoid theft effectively from lock core; therefore can improve the theftproof performance and the safety in utilization of lock greatly; prolong the application life of lock, protection the people's lives and property safety.Characteristics such as the present invention also has simple in structure, implements easily, and is practical.

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is a three-dimensional exploded view of the present invention.

Fig. 2 is a sectional view of the present invention.

Consult Fig. 1, Fig. 2, padlock as shown in the figure comprises lock core 1, lock body 2, lock bridge 3, and wherein lock core 1 is made by copper material, and it is contained in the lock body 2, and fixing by stop screw 4, and one end-face 11 exposes.The lock core other end is connected with lock bridge 3 by pin 5.Main points of the present invention are, be provided with an anti-drilling guard shield 6 outside the end face 11 exposing of lock core 1, this guard shield is shell-like, its shape is identical with the end surface shape of lock core, for both are connected firmly, process a ring-shaped step 12 in the lock core end face edge, the edge of guard shield is enclosed within this step place, and fixing by pin 7.The lock core that guard shield 6 is housed adopts stationary fit to be inlaid in the lock body again.On this guard shield with lock core on the spoon inlet corresponding section also have corresponding spoon inlet 61, can insert key through this spoon inlet.For making drill bit be difficult to pierce, above-mentioned guard shield adopts the hard steel, makes as mild steel.

Claims (3)

1, a kind of lock core drilling-preventing structure is characterized in that, is provided with an anti-drilling guard shield (6) outside the end face (11) exposing of lock core (1), have on this guard shield with lock core on the corresponding spoon inlet of spoon inlet (61).

2, lock core drilling-preventing structure according to claim 1 is characterized in that, described anti-drilling guard shield (6) is placed in lock core end outer rim, and fixing by pin (7), and anti-drilling guard shield and lock body (2) are inlayed fixing.

3, lock core drilling-preventing structure according to claim 1 is characterized in that, described anti-drilling guard shield (6) is made by the hard steel.

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