CN201184076Y

CN201184076Y - Anti-theft core-inserting door lock core

Info

Publication number: CN201184076Y
Application number: CNU2008200334017U
Authority: CN
Inventors: 韦志强
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-21
Filing date: 2008-03-21
Publication date: 2009-01-21
Anticipated expiration: 2018-03-21

Abstract

The utility model discloses an anti-theft lock core for a mortice door lock. The lock core includes a lock core body consisting of a cylinder and a longitudinal bulge on one side of the excircle of the cylinder. A dial wheel is positioned in the middle of the cylinder; the dial wheel is in rotatable fit with the cylinder. A lock cylinder is positioned in the cylinder; radial ball holes are respectively formed on the lock cylinder and the longitudinal bulge; balls,, springs and bulkhead balls are arranged in the radial ball holes; two key holes are formed in the longitudinal lock cylinder and the dial wheel; and the two key holes are corresponding with each other. The lock core is characterized in that a radial flat hole is formed on the lock cylinder; the radial flat hole is paralleled with the axial direction of the lock cylinder and communicated with the key holes; a spring and an anti-theft sheet are arranged in the radial flat hole; an arc-shaped groove is formed on the inner wall of the cylinder; the outer side of the anti-theft sheet extends into the arc-shaped groove under the effect of the springs; and drill-prevention pins are respectively arranged in the lock cylinder and the longitudinal bulges at the two ends of the lock core body. The lock core not only prevents thiefs from unlocking the lock illegally, but also enables the lock core body and the lock cylinder as well as the balls in the lock cylinder not to be broken, so the thiefs have little possibility of succeed. Therefore, the lock core is suitable for various mortice door locks.

Description

A kind of anti-theft mortise door lock core

Technical field

The utility model relates to a kind of lock core.Specifically, be anti-theft mortise door lock core with anti-drilling function, be applicable on the various mortise door locks.

Background technology

At present, its lock core body of lock core and lock gall used on the various mortise door locks all are to form with a kind of material casting, do not have measures, and experienced robber adopts illegal instrument also lock can be opened.On the other hand, this lock core does not have anti-drilling measure, and when the robber destroyed lock core with electric drill, the pellet shot from a slingshot in lock core body and lock gall and the lock gall was very easily destroyed, thereby makes door lock ineffective, and robber's purpose is succeeded easily.

The utility model content

Problem to be solved in the utility model provides a kind of anti-theft mortise door lock core, adopt this lock core, not only can avoid the robber to adopt illegal instrument that lock is opened, and can avoid the pellet shot from a slingshot in lock core body and lock gall and the lock gall to be destroyed, make robber's purpose be difficult to succeed.

For addressing the above problem, take following technical scheme:

Anti-theft mortise door lock core of the present utility model contains lock core body, and this lock core body is made up of vertical projection of cylinder and cylinder cylindrical one side, and the centre of cylinder has thumb wheel and the two to be rotatable shape cooperation.Lock gall is arranged in the cylinder, on lock gall and the vertical projection radially pellet shot from a slingshot hole and the radially pellet shot from a slingshot hole correspondence on the two are arranged all, radially have pellet shot from a slingshot, spring to reach silently pellet shot from a slingshot in the pellet shot from a slingshot hole from inside to outside successively.On the vertical and thumb wheel of lock gall keyhole is arranged all, and the keyhole on the two is corresponding.Be characterized in having on the lock gall radially flat hole, this radially the axially parallel of flat horizontal surface and the lock gall in flat hole and its be communicated with keyhole, spring and theft protection plate are arranged in it from inside to outside successively.On the cylindrical inner wall of lock core body arc groove is arranged, do not insert at key under the non-unlocking condition of keyhole, the outside of theft protection plate is stretched in the arc groove under spring action.In one section at the two ends of lock gall horizontal pin-and-hole is arranged, laterally in the pin-and-hole anti-drill pin is arranged.

For further improving theftproof performance, in vertical projection at lock core body two ends, be processed with horizontal pin-and-hole, laterally in the pin-and-hole anti-drill pin is arranged.

Take such scheme, have the following advantages:

Because the utility model is processed with radially flat hole on lock gall, spring and theft protection plate are arranged in the radially flat hole from inside to outside successively.On the cylindrical inner wall of lock core body arc groove is arranged, do not insert at key under the non-unlocking condition of keyhole, the outside of theft protection plate is stretched in the arc groove under spring action.Have only with the key originally locked and insert in the keyhole on the lock gall and when rotating, could under spring action, make theft protection plate skid off arc groove, and then lock is opened.And when the key of locking with non-or other illegal instrument insertion keyhole and attempt rotation, just can't rotate lock gall, can not make the outside of theft protection plate skid off arc groove, be difficult to lock is opened, insure thereby increased together.

Owing in a section of lock gall two ends and in vertical projection at lock core body two ends, all be processed with horizontal pin-and-hole, laterally in the pin-and-hole anti-drill pin is installed again.And anti-drill pin is again to make through quenching with the manganese steel pin.Make the pellet shot from a slingshot in lock core body and lock gall and the lock gall not be subject to destruction, increased prevention violence unlocking function, make robber's purpose be difficult to succeed.

Description of drawings

Fig. 1 is an anti-theft mortise door lock core structural representation of the present utility model;

Fig. 2 is the A-A cross-sectional schematic of Fig. 1;

Fig. 3 is the schematic top plan view of Fig. 1;

Fig. 4 is the B-B cross-sectional schematic of Fig. 3;

Fig. 5 is the C-C cross-sectional schematic of Fig. 3.

The specific embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, anti-theft mortise door lock core of the present utility model contains lock core body, and this lock core body is made up of vertical protruding 2 of cylinder 5 and cylinder 5 cylindricals one side, and the centre of cylinder 5 is equipped with thumb wheel 4 and the two and is rotatable shape and is combined together.Be processed with vertical hole in the cylinder 5, lock gall 8 and the two vertically be installed in the hole be movable and cooperate.Vertically be processed with a plurality of radially pellets shot from a slingshot hole accordingly on projection 2 and the lock gall 8, each radially all is equipped with pellet shot from a slingshot 7 in the pellet shot from a slingshot hole from inside to outside successively, spring 6 reaches silently pellet shot from a slingshot 1.All be processed with keyhole on the vertical and thumb wheel 4 of lock gall 8, and the keyhole on the two is corresponding.On lock gall 8, be processed with radially flat hole, this radially the axially parallel of flat horizontal surface and the lock gall in flat hole and its be communicated with keyhole, spring and theft protection plate 9 are installed in it from inside to outside successively.In the cylinder 5 inwalls processing of lock core body arc groove is arranged, do not insert at key 3 under the non-unlocking condition of keyhole, the outside of theft protection plate 9 is stretched in the arc groove under spring action.Have only in the keyhole that inserts on the lock galls 8 with the key originally locked 3 and when rotating, could under spring action, make theft protection plate 9 skid off arc groove, and then lock is opened.And when the key of locking with non-3 or other illegal instrument insertion keyhole and attempt rotation, just can't rotate lock gall 8, can not make the outside of theft protection plate 9 skid off arc groove, be difficult to lock is opened, insure thereby increased together.

As shown in Figure 5, unblank, all be processed with a horizontal pin-and-hole in one section at the two ends of lock gall 8, in each horizontal pin-and-hole anti-drill pin 10 is installed all for preventing violence.As shown in Figure 4, the lock core body two ends vertical protruding 2 in also be processed with horizontal pin-and-hole, laterally in the pin-and-hole anti-drill pin 10 is installed.Wherein, horizontal pin-and-hole on the lock gall 8 and anti-drill pin 10 thereof are in the outside of theft protection plate 9 and spring, the anti-drill pin on the lock core body then be in pellet shot from a slingshot 7, spring 6 and silently pellet shot from a slingshot 1 the outside and with the pellet shot from a slingshot hole vertically parallel.

Described anti-drill pin 10 is to make through quenching with the manganese steel pin.

Like this, make pellet shot from a slingshot in lock core body and lock gall 8 and the lock gall 8 etc. not be subject to destruction, increased prevention violence unlocking function.

Claims

1. an anti-theft mortise door lock core comprises lock core body, and this lock core body is made up of vertical projection (2) of cylinder (5) and cylinder (5) cylindrical one side, and the centre of cylinder (5) has thumb wheel (4) and the two to be rotatable shape cooperation; Lock gall (8) is arranged in the cylinder (5), on lock gall (8) and vertically protruding (2) radially pellet shot from a slingshot hole and the radially pellet shot from a slingshot hole correspondence on the two are arranged all, radially have pellet shot from a slingshot (7), spring (6) to reach silently pellet shot from a slingshot (1) in the pellet shot from a slingshot hole from inside to outside successively; On the vertical and thumb wheel (4) of lock gall (8) keyhole is arranged all, and the keyhole on the two is corresponding; It is characterized in that radially flat hole is arranged on the lock gall (8), this radially the axially parallel of flat horizontal surface and the lock gall (8) in flat hole and its be communicated with keyhole, spring and theft protection plate (9) are arranged in it from inside to outside successively; On the cylinder of lock core body (5) inwall arc groove is arranged, do not insert at key (3) under the non-unlocking condition of keyhole, the outside of theft protection plate (9) is stretched in the arc groove under spring action; In one section at the two ends of lock gall (8) horizontal pin-and-hole is arranged, laterally in the pin-and-hole anti-drill pin (10) is arranged.

2. anti-theft mortise door lock core according to claim 1 is characterized in that in vertical projection (2) at lock core body two ends horizontal pin-and-hole being arranged, and laterally in the pin-and-hole anti-drill pin (10) is arranged.

3. anti-theft mortise door lock core according to claim 2 is characterized in that the outside that horizontal pin-and-hole on the lock gall (8) and anti-drill pin (10) thereof are in theft protection plate (9) and spring.

4. anti-theft mortise door lock core according to claim 2, it is characterized in that horizontal pin-and-hole on vertical projection (2) and anti-drill pin (10) thereof be in pellet shot from a slingshot (7), spring (6) and silently pellet shot from a slingshot (1) the outside and with the pellet shot from a slingshot hole vertically parallel.

5. according to the described anti-theft mortise door lock core of arbitrary claim in the claim 1～4, it is characterized in that described anti-drill pin (10) is to make through quenching with the manganese steel pin.