CN201144549Y

CN201144549Y - Door lock with composite lock core

Info

Publication number: CN201144549Y
Application number: CNU2007201876244U
Authority: CN
Inventors: 程友良; 程留敏; 程会敏
Original assignee: SHANGQIU ANTE HARDWARE PRODUCTS CO Ltd
Current assignee: SHANGQIU ANTE HARDWARE PRODUCTS CO Ltd
Priority date: 2007-12-25
Filing date: 2007-12-25
Publication date: 2008-11-05
Anticipated expiration: 2017-12-25

Abstract

The utility model discloses a lock provided with a composite core. The lock comprises a small bolt, a big bolt, a shift fork, a lock body, a core and a key. The core consists of an outer core and an inner core; the inner core is installed in the outer core, and the inner and the outer cores can slide relatively in axial direction. One end of the inner core is provided with a pick that is matched with a shift fork arranged in the lock body. The circumferential surface of the outer core is provided with a ring-shaped socket. The outer surface of the inner core is provided with a stop socket. The stop socket is matched with a spacer pin or a spacing shim arranged on the outer core, so that the inner core can move a certain distance in axial direction relatively to the outer core. The outer core is installed in a fixed sleeve, on which a spacer pin is arranged. The spacer pin matches the ring-shaped socket on the outer core. The fixed sleeve is installed on a door plate and connected with the lock body by a bolt. The lock with the composite core of the utility model adopts a novel structure and opening method, thus greatly improving the anti-theft property of the core. So the lock with the composite core has a good social and economic benefit.

Description

The door lock that has composite lock core

One. technical field:

The utility model relates to a kind of padlock, particularly relates to a kind of door lock that has composite lock core.

Two. background technology:

Lockset is the patron saint of people's property, if lockset goes wrong, people's property just can not be protected, but one of important means of robber's crime also is to start with from lockset, the one, realize unblanking by destroying, because this method needs bigger tool used in crime, its target is big, and sound of movement is big, so the offender does not generally use; The 2nd, unblank by the so-called master key of self so-called technology and autogamy, because this method is more hidden, be not easy to be found, so the offender often uses.Mostly be rotational structure greatly between lock core and the lock body at present, because the existence of machining error, it is poor to produce certain included angle when making two circles tangent, the existence of this angle difference, cause and to carry out changing joint to one by one pellet shot from a slingshot with foreign matter not as good as the tangent profound son of resistance, thereby on tangent round core face, form a profound sub line, make pellet shot from a slingshot out of control and unblank, the reason that Here it is no key or master key unblanked.

At these situations, people strengthen the intensity and the fastness of lockset on the one hand, improve the anti-pirate of the open performance of lock core on the other hand, as: people develop cross lock core, to strengthen the theftproof performance of lock.But, no matter be that I-shaped lock or the big multipotency of the cross lock craftsman that unblanked opens with technical approach, certainly, some thiefs also can be driven such lock, its reason also is that existing lock core generally all is to rotate to a direction, craftsman or the thief torsional forces when having key turns of unblanking is judged the position and the quantity of pellet shot from a slingshot, thereby opens lockset, makes lockset ineffective.

Three. the utility model content:

The purpose of this utility model: overcome the deficiencies in the prior art, provide a kind of modern design, simple in structure, security performance good, can adapt to the door lock that has composite lock core of large-scale production.

The technical solution of the utility model: a kind of door lock that has composite lock core, contain lock body, little dead bolt, big dead bolt, shift fork, lock core and key, described lock core is made up of outer lock core and internal cylinder, wherein, outer lock core is a cylinder, internal cylinder is fan-shaped prism, internal cylinder is sleeved in the outer lock core, the two can endwisely slip mutually, be respectively arranged with corresponding pellet shot from a slingshot hole on described outer lock core and the internal cylinder, described pellet shot from a slingshot is equipped with pellet shot from a slingshot and spring in the hole, offer keyhole on the described internal cylinder, and described internal cylinder one end is provided with plectrum, this plectrum is corresponding with the shift fork in the lock body, described shift fork is connected with dead bolt, and the circumferential surface of described outer lock core is provided with annular groove, and the external surface of described internal cylinder is provided with stopper slot, this stopper slot is corresponding with spacer pin or banking stop on the outer lock core, makes internal cylinder move axially a section with respect to outer lock core and moves; Described outer lock core is sleeved in the fixed cover, described fixed cover is provided with alignment pin, and this alignment pin matches with annular groove on the described outer lock core, outer lock core can only be rotated and can not move axially, described fixed cover is installed on the door-plate, and is connected with lock body by bolt.

Be provided with back-moving spring between described outer lock core and the internal cylinder.

The beneficial effects of the utility model:

1. the utility model modern design, adopt brand-new structure and opening ways, its outer lock core can axially move relatively with internal cylinder, one end of the internal cylinder after moving stretches out outer lock core, the plectrum that is provided with on this end inserts shift fork, and shift fork is rotated, and shift fork drives the dead bolt motion, thereby reach the purpose of unblanking, this structure and opening ways have improved the anti-pirate of the open performance of lock core greatly.

2. the anti-pirate of the open of the utility model is effective, its outer lock core and internal cylinder plane contact, and link together by pellet shot from a slingshot and spring, plane contact has reduced the gap between the two, prevents that foreign matter from entering, and realizes a heavily anti-pirate of the open; Outer lock core can dally in fixed cover, and torsional forces information is not provided, and makes the keyless person of unblanking can't judge tram between lock core and the dead bolt driving member, realizes the anti-pirate of the open of two-fold; The key of coupling inserts in the keyhole of internal cylinder, and the height of pellet shot from a slingshot is adjusted, and internal cylinder is consistent with the height of the pellet shot from a slingshot at place, the contacted plane of outer lock core, and internal cylinder axially moves under the effect of key, implements then to unblank, and realizes triple anti-pirate of the open.

3. the utility model scope of application is wide, and the selling market is wide, can be adapted to large-scale industrialized production, has good society and economic benefit.

Four. Figure of description:

Fig. 1 is the structural representation that has the door lock of composite lock core;

Fig. 2 is the profile of overlooking of lock core shown in Figure 1;

Fig. 3 is the sectional drawing of lock core shown in Figure 1.

Five. the specific embodiment:

Embodiment: referring to Fig. 1～Fig. 3, among the figure, 1-dead bolt frame, 2-bonnet, the big dead bolt of 3-, the 4-lock body, the 5-shift fork, the little dead bolt of 6-, 7-uvula beam, the 8-uvula is hung, the 9-fixed cover, 10-outer lock core, 11-internal cylinder, the little tongue of 12-, the 13-handle, 14-is little to decide the tongue switch block, and 15-decides the tongue rotor greatly, the 16-staple, the 17-keyhole, 18-pellet shot from a slingshot, 19-stopper slot, 20-spacer pin or banking stop, the 21-pressure ring, 22-annular groove, 23-plectrum, 24-steady pin.

The lock core that has the door lock of composite lock core is made up of outer lock core 10 and internal cylinder 11, wherein, outer lock core 10 is a cylinder, internal cylinder 11 is fan-shaped prism, internal cylinder 11 is sleeved in the outer lock core 10, the two can endwisely slip mutually, be respectively arranged with corresponding pellet shot from a slingshot hole (can be a row or multi-row) on outer lock core 10 and the internal cylinder 11, pellet shot from a slingshot 18 and spring are installed in the pellet shot from a slingshot hole, offer keyhole 17 on the internal cylinder 11, and internal cylinder 11 1 ends are provided with plectrum 23, this plectrum 23 is corresponding with the shift fork 5 in the lock body 4, shift fork 5 is connected with little dead bolt 6, and the circumferential surface of outer lock core 10 is provided with annular groove 22, and the external surface of internal cylinder 11 is provided with stopper slot 19, this stopper slot 19 is corresponding with spacer pin or banking stop 20 on the outer lock core 10, makes internal cylinder 11 move axially a section with respect to outer lock core 10 and moves; Outer lock core 10 is sleeved in the fixed cover 9, fixed cover 9 is provided with alignment pin 24, and this alignment pin 24 matches with annular groove 22 on the outer lock core 10, outer lock core 10 can only be rotated and can not move axially, fixed cover 9 is installed on the door-plate, and is connected with lock body 4 by bolt.

In the present embodiment, the lock core of door lock is new structure, and other part is prior art, and its structure and lock mode do not describe in detail.

During use, lock body 4 and dead bolt frame 1 are installed in respectively on door-plate and the doorframe, lock core also is installed on the door-plate by fixed cover 9, identical with the mounting means of common door lock, after key inserted keyhole 17, different pellets shot from a slingshot 18 is by the different height of jack-up, thereby the other end of pellet shot from a slingshot 18 is positioned on the end face of internal cylinder 11, promotes key, making internal cylinder 11 do axial straight line moves, the plectrum 23 of internal cylinder 11 1 end settings stretches out outer lock core 10, inserts in the shift fork 5 key, outer lock core 10 is rotated, the shift fork 23 of internal cylinder 11 drives shift fork 5 rotations simultaneously, and shift fork 5 drives little dead bolt 6 and shrinks, and realizes opening.After the unlatching, extract key, because the effect of resistance, internal cylinder 11 is pulled original position, finishes a circulation, in order to increase the reset effect of internal cylinder 11, can between outer lock core 10 and internal cylinder 11 back-moving spring be set.The displacement size of spacer pin on stopper slot 19 and the outer lock core 10 or banking stop 20 control internal cylinder 11 can be adjusted as required.The motion mode of big dead bolt 3 is identical with common lock, is prior art, does not describe in detail.

The specific constructive form that changes shift fork and dead bolt can be formed a plurality of embodiment, is common excursion of the present utility model, does not describe in detail one by one at this.

Claims

1. door lock that has composite lock core, contain lock body, little dead bolt, big dead bolt, shift fork, lock core and key, it is characterized in that: described lock core is made up of outer lock core and internal cylinder, wherein, outer lock core is a cylinder, internal cylinder is fan-shaped prism, internal cylinder is sleeved in the outer lock core, the two can endwisely slip mutually, be respectively arranged with corresponding pellet shot from a slingshot hole on described outer lock core and the internal cylinder, described pellet shot from a slingshot is equipped with pellet shot from a slingshot and spring in the hole, offer keyhole on the described internal cylinder, and described internal cylinder one end is provided with plectrum, this plectrum is corresponding with the shift fork in the lock body, described shift fork is connected with dead bolt, and the circumferential surface of described outer lock core is provided with annular groove, and the external surface of described internal cylinder is provided with stopper slot, this stopper slot is corresponding with spacer pin or banking stop on the outer lock core, makes internal cylinder move axially a section with respect to outer lock core and moves; Described outer lock core is sleeved in the fixed cover, described fixed cover is provided with alignment pin, and this alignment pin matches with annular groove on the described outer lock core, outer lock core can only be rotated and can not move axially, described fixed cover is installed on the door-plate, and is connected with lock body by bolt.

2. the door lock that has composite lock core according to claim 1 is characterized in that: be provided with back-moving spring between described outer lock core and the internal cylinder.