CN103276963A

CN103276963A - Anti-theft door lock

Info

Publication number: CN103276963A
Application number: CN2012104240397A
Authority: CN
Inventors: 陈肇强
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-30
Filing date: 2012-10-30
Publication date: 2013-09-04
Anticipated expiration: 2032-10-30
Also published as: CN103276963B

Abstract

The invention relates to an anti-theft door lock. An upper location ring, a lower location ring, a guiding location sheet, an outer cylinder, an inner cylinder with a self-destroying device, a location shaft, a location elastic ball, an anti-drilling rod and a self-destructive location pin are arranged in a circular key cylinder outer shell. A lock body is of a self-locking structure. Technical unlocking and destructive unlocking can be effectively prevented.

Description

Safe-guard door lock

The present invention relates to a kind of Mechanical theft-proof door lock new equipment, especially ensure the door lock of life, property safety.

Background technology

At present, known door lock, it mainly constructs by lock core, inner core, different shape key, spring and (single, many row) hoodle, key, dead bolt and transmission mechanism, lock body and forms.Key is inserted lock core, and the concavo-convex position of key and hoodle length are coincide inner core are rotated, and reach switching function.But the door lock of Shi Yonging substantially all exists now, and preventing universal key (all kinds of unlocking tools are openly sold on the net) is opened, destructive function weakness of opening.It adopts structure all can not prevent omnipotent spoon unlatching, has the service unblanked to the doorstep to be evidence.Or just can open by force with a spoon groove corresponding spanner, boring with regard to boring with Rechargeable torch and open a spoon groove, hoodle is just ineffective.The lock of band drilling-preventing structure is partly arranged, because its structure exposes, preventing destructing performance is poor.This lock also can not be opened by preventing universal key, therefore can not effectively stop the enforcement of opener to be used, and difficulty reaches real anti-theft feature.Newspaper, television report be broken to be locked the chamber larceny case and happens occasionally, with defective, the deficiency of oneself positive real its structure of epipodium.

Summary of the invention

In order to overcome the anti-theft feature deficiency of existing lockset, the invention provides a kind of, as can to prevent technology and destructive unlatching structure.

The technical solution adopted for the present invention to solve the technical problems is: key adopts cylindrical structural, in lock, and guide-localization sheet, location hoodle, locating shaft, inner core (band self-distruction structure), anti-drilling rod, lock-bit pin, lock body connect short flat axle and be connected minor axis (band self-distruction structure) and self-locking structure composition with lock body.Operating principle: key inserts lock core, and the concavo-convex position of the guide-localization sheet that coincide, anti-drilling rod, location hoodle and locating shaft make inner core rotate, make dead bolt stretch to lock body structure reaching switching function by connecting flat axle, minor axis.Anti-technology, destructive open theory: when using existing omnipotent spoon or other instrument to open, all can not make inner core generation effect.If have specific process and instrument to make the inner core rotation, inner core can not rotate under the hoodle effect of location, and inner core can produce fracture, lose turning effort when rotating by force.When using electric drill to destroy lock core, anti-drilling rod is subjected to the drill bit active force can produce rotation, makes drill bit ineffective.When dismantling lock core by force, the lock-bit pin is shifted under spring action, makes Bolt with latching action, inserts transmission minor axis breach, and connecting minor axis when rotating with the instrument reinforcing this moment can rupture again, and should lock locked fully this moment.This structure has self-destruction, self-locking, anti-technology, anti-destructive unlatching performance, is able to antitheft purpose.

The invention has the beneficial effects as follows that this structure is fit to various locksets, key can arrange many, can multi-faceted adjustment position.Stepless combination can be adopted in the concavo-convex position of guide-localization sheet, and the location hoodle can adopt multidigit, position can arrange arbitrarily outside the spoon groove.Locating shaft, partly optionally in the location use multiple geometry, key repeats that probability is zero, the improper difficulty that copies.Drilling-preventing structure constitutes in inside, and anti-destructive is strong.Band secondary self-destruction and auto-lock function, its anti-technology, the destructive unlatching, all above the Ministry of Public Security: " GA/T73-94 Mechanical theft-proof door lock " B level is prevented the unlatching standard, can effectively ensure the safety of life, property, provides safety guarantee to preserving confidential data.Adopt theory of mechanics, metal parts, simple in structure.

Description of drawings:

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is constructional drawing of the present invention.

Fig. 2 is lock core vertical section constructional drawing.

Fig. 3 is the self-locking constructional drawing.

Fig. 4 is inner core self-destruction constructional drawing.

Fig. 5 connects minor axis self-destruction constructional drawing.

Fig. 6 is the key constructional drawing.

Fig. 7 is the schematic diagram of unblanking.

Fig. 8 is the self-locking action schematic diagram.

1. shells among Fig. 2,2. upper and lower locating ring, 3. guide-localization sheet, 4. outer core, 5. inner core, 6. anti-drilling rod, 7. lock-bit pin, 8. locating shaft, 9. location hoodle, the 10. flat axle of connection.

1. lock bottom plates among Fig. 3,2. guide-localization, 3. latch, 4. spring, 5. set bolt, 6. connection minor axis.

The specific embodiment:

In Fig. 7,3), anti-drilling rod (Fig. 2: 6) link to each other and coincide key (1), locating shaft (2), location hoodle (3), guide-localization sheet (Fig. 2:.Can implement to unblank by screw key.Existing omnipotent spoon, to drive spanner by force all inoperative to core arrangement.If have specific process and instrument that inner core is rotated again, inner core (inner core self-distruction structure Fig. 4) is stopped, ruptures because locating hoodle.The own breaking-up of lock core, ineffective.

In the embodiment shown in fig. 8, behind the normal condition of lock (1) the dismounting lock core (2).In Fig. 8 (2), oneself is shifted the lock-bit pin, latch inserts under spring action and connects minor axis breach realization self-locking (self-locking structure Fig. 3), when being rotationally connected minor axis with instrument again, because the connection minor axis is subjected to latch to stop akinesia, connecting minor axis (minor axis self-distruction structure Fig. 5) when reinforcing is rotated again can rupture.This moment, lock was own locked.

Claims

1. Mechanical theft-proof door lock, in the circular lock core shell, upper and lower locating ring, guide-localization sheet, outer core, inner core (self-distruction structure Fig. 4), locating shaft, location hoodle, anti-drilling rod, self-lock pin, the flat axle of transmission, retainer ring constitute, in self-locking structure, lock bottom plate, connection minor axis (self-distruction structure Fig. 5), positioning and guiding, latch, spring, set bolt constitute, it is characterized in that: key will coincide guide-localization sheet, inner core, locating shaft, location hoodle, anti-drilling rod, could implement breakdown action.Behind the dismounting lock core, self-locking structure begins to start.