CN2160708Y - Guard for keyhole - Google Patents

Abstract

The utility model lock protection cover which is made of prime product. A protection lock core (3) is provided with a lock groove which is identical to a key. The protection lock core (3) is installed in the eccentric hole of a protection lock shell (1), and a protection lock rear cover (2) is covered. The end faces of the protection lock core (3) and the protection lock rear cover (2) are provided with balls (4). The protection lock core (3) can rotate 360 DEG. Finally, a protection lock lining (5) is arranged in the protection lock shell (1), and is weld into a steel body with the protection lock shell (1). A step face on the left end of the protection lock shell (1) is arranged in a door frame (7), and then a circlip (6) is clamped.

Description

Guard for keyhole

The utility model relates to a kind of Guard for keyhole of built-in lock core safety guard.

The utility model considers that existing all kinds of built-in lock adopts traditional form of structure always, is made of lock housing, lock core, dead bolt, pellet shot from a slingshot equijoin, and breakthrough improvement is not arranged, and lock core adopts copper material to make, and commits a crime after being destroyed lock core by the lawless person easily.According to the introduction of local public security department, the lawless person often takes to strike badly or bores the means of bad lock core and enters the room, and reaches the purpose of crime, and the utility model can protect lock core not to be destroyed effectively, and reaches the purpose of protection the country and people property safety.

The purpose of this utility model provides a kind of simple in structure, convenient manufacturing process, can with can pick-proof after built-in lock cooperates, anti-ly strike, anti-drilling Guard for keyhole.

The purpose of this utility model is achieved in that in original built-in lock core outside sets up a Guard for keyhole, and whole Guard for keyhole selects for use the manufacturing of high-quality steel to form, and through modifier treatment.Guard for keyhole has: protect lock housing (1), protect lock bonnet (2), protect lock core (3), ball (4), protect and lock liner (5), jump ring (6) formation.Protect lock core (3) and be provided with the locked groove identical with built-in lock core; protect to be equipped with in lock housing (1) eccentric orfice and protect lock core (3); protect lock bonnet (2) and protect lock core (3) end face ball (4) is housed; protecting lock core (3) can rotate by 360 degree; protecting lock liner (5) packs into and protects in the lock housing (1) back and to protect lock housing integrally welded; protecting the left end step and doorframe (7) lateral surface of lock housing (1) combines closely; protect jump ring (6) and doorframe (7) medial surface strong bonded in lock housing (1) groove; owing to protect lock core (3) through modifier treatment; protecting lock core can not pried open by bottle opener; if protect lock core (3) with the instrument hammering; its active force is by ball (4); protect the lock bonnet (2) pass to protect the lock liner (5); owing to protect lock liner (5) and protect lock housing (1) and be connected for the steel body; so; protect lock liner (5) and be delivered on the doorframe by protecting the left step of lock housing (1), can play the not impaired effect of protection built-in lock core like this with transmitting the power of coming.Protect lock core (3) as boring with electric drill, because of protecting lock core (3) through modifier treatment, be subjected to can rotating by 360 degree after the axial force, electric drill can't destroy lock core, and drill bit ruptures easily, has so just protected built-in lock core effectively.So this built-in lock core Guard for keyhole can play pick-proof, anti-strikes, anti-drilling effect.

The utility model, the built-in lock core Guard for keyhole of manufacturing, be a kind of simple in structure, convenient manufacturing process, cost low, be fit to Multi-varieties and Small-batch Production, also can be widely used in by all occasions of adorning built-in lock by built-in lock manufactory and the supporting batch process of built-in lock.

Describe in detail of the present utility model concrete by dress and operating process below in conjunction with accompanying drawing.

Fig. 1 is the utility model built-in lock core Guard for keyhole structure chart.

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

Built-in lock core Guard for keyhole of the present utility model has been set up and has been protected lock core (3), ball (4), protected lock bonnet (2), has protected lock housing (1), protected lock liner (5), jump ring (6) in former built-in lock core outer face.Protecting lock core (3) is contained in the eccentric orfice that protects lock housing (1), protecting lock bonnet (2) is contained in and protects in lock housing (1) hole, the left side is near the built-in lock face, protect the left step surface of lock core (3) and protect the right step surface of lock bonnet (2) and be provided with ball (4), protect lock liner (5), be welded into the steel body with protecting lock housing (1), protect lock housing (1) and fix with jump ring (6) and doorframe (7).Because of being provided with ball (4), rotating insert key in protecting lock core (3) groove after with protecting lock bonnet (2) end face protecting lock core (3), built-in lock core also rotates thereupon, thereby can open built-in lock.

Claims (1)

1, a kind of Guard for keyhole, by protecting lock housing (1), protect lock core (3), protect lock bonnet (2), ball (4), protecting lock liner (5), jump ring (6) and form, it is characterized in that protecting lock core (3) and be installed in the eccentric orfice that protects lock housing (1), also be provided with the locked groove identical protecting on the lock core (3) with built-in lock core.

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