CN2450305Y - Lock - Google Patents

Abstract

The utility model relates to a lock which comprises an inner lock and an outer lock, wherein, the inner and the outer locks are fixed into a linked lock through a lock frame, and a shifting fork is arranged between the inner and the outer locks; a shifting fork sleeve is arranged on an inner and an outer lock cores, and the center point of the shifting fork is provided with an inner and an outer top shifts; point where the tail parts of the inner and the outer lock cores are matched with the inner and the outer top shifts are provided with a groove, and the inner and the outer top shifts are positioned and guided with the groove through a lug boss on the inner and the outer top shifts; the inner of each of the inner and the outer locks is separately provided with four rows of beads which are ranged by forming a cross. The utility model has the advantages of convenient maintenance and replacement, mutual noninterference of opening the inner and the outer locks, simpleness and freedom, high secrecy performance of the lock, powerful functions of pull, drilling and prying prevention.

Description

A kind of tapered end

The utility model relates to a kind of tapered end, particularly relates to a kind of tapered end that is installed on built-in lock.

Existing built-in lock, its tapered end and lock body generally all combine as a whole, and breaking down at tapered end needs repairing or when changing, must unload maintenance or replacing that lock body carries out tapered end, and it is very inconvenient to operate; In addition, the theftproof performance of the tapered end of existing built-in lock is not enough, generally all is to adopt conventional flat spoon single-row billiard or cross-key three row's billiards structures, and the size of key of lock is not enough, the mutual opening rate height; Have, the tapered end of existing built-in lock because the defective of its external structure, causes anti-drilling, anti-ly pulling out, the function of pick-proof is also relatively poor again.

The purpose of this utility model provides a kind of maintenance or changes the tapered end that is installed on built-in lock convenient, that theftproof performance is good.

For reaching above-mentioned purpose, the utility model is achieved through the following technical solutions: it comprises inner lock head and outer tapered end, inner lock head comprises internal cylinder and internal lock head capsule, outer tapered end comprises outer lock core and external lock head capsule, described inner lock head fixedly becomes a conjuncted tapered end with outer tapered end by the tapered end frame, be provided with a shift fork between the inside and outside tapered end, shift fork is enclosed within on the inside and outside lock core; Top shelves and outer top shelves in described shift fork center is provided with, inside and outside top shelves are respectively equipped with boss, and inside and outside top shelves push up the series connection of shelves core with one, and two top shelves can freely rotate around pushing up a shelves core; Inside and outside lock core afterbody and the inside and outside top shelves part that matches has a groove, and inside and outside top shelves are by boss and this groove positioning and guiding on it, and it can be free to slide in inside and outside lock core; Be respectively equipped with four row's hoodles in the described inside and outside tapered end, four row's hoodles are right-angled intersection and arrange.During use, tapered end is vertically interted in the lock body of built-in lock, and be screwed on lock body, the position correspondence of the shift fork between inside and outside tapered end is on the promptly main dead bolt slide plate of the toggle mechanism of main dead bolt.When cross-key injects outer lock core, the boss that promotes outer top shelves is aimed at shift fork, and the top shelves move after then in this moment, and the boss on it breaks away from shift fork, outer lock core drives outer top shelves and rotates interior top shelves and then do not rotate when rotating, outer top shelves rotate a drive shift fork and stir main dead bolt slide plate and move forward and backward.The utility model is not subjected to the interference of inner lock head when using key operated external lock head to drive shift fork, and when using key operated inner lock head to drive shift fork, is not subjected to the influence of outer tapered end yet, thereby reaches the purpose that can use the smooth open and close lock of inside and outside tapered end separately.When tapered end needs repairing or changes, insert key in tapered end, the rotation shift fork just can wholely tapered end be extracted out in lock body in the appropriate location, and does not need to unload maintenance or the replacing that lock body carries out tapered end; Inside and outside tapered end adopts cross-key four row's hoodle structures, has increased the secret key amount of lock, has reduced the mutual opening rate of lock, thereby has strengthened the function of keeping secret of lock.

For making shift fork stir main dead bolt slide plate in the built-in lock lock body better, realize the secondary stroke of main dead bolt, inside and outside tapered end semicircular in shape described in the utility model.Anti-pull out for the utility model is had more again, the function of anti-drilling and pick-proof, the procephalic outer lock core face of described external lock is provided with two anti-drilling sheets of crossing through Carburization Treatment, anti-drilling sheet is sealed with an anti-drill bushing, prevents that the drill bushing rivet clasp is on the external lock head capsule.The front end of outer tapered end described in the utility model also is provided with a trim, and this trim is fixed on the door, thereby hides semicircular outer tapered end, makes the utility model seem more attractive in appearance.

In sum, compared with prior art, the utlity model has following characteristics: (1) maintenance or replacing are convenient; Mutually noninterfere when (2) opening inside and outside tapered end is easily free; (3) Suo security performance height anti-pulls out, function anti-drilling and pick-proof is strong.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is along the sectional view of A-A line among Fig. 1;

Fig. 3 is along the sectional view of B-B line among Fig. 1;

Fig. 4 is the structural representation of inside and outside top described in the utility model shelves;

Fig. 5 is the right view of Fig. 4.

As shown in the figure, the utility model tapered end comprises inner lock head 1 and outer tapered end 2, inside and outside tapered end 1,2 semicirculars in shape, and inner lock head 1 fixedly becomes a conjuncted tapered end with outer tapered end 2 by tapered end frame 7.Inner lock head 1 comprises internal cylinder 3 and internal lock head capsule 4, outer tapered end 2 comprises outer lock core 5 and external lock head capsule 6,5 of the outer lock cores of outer tapered end 2 front portions are provided with two anti-drilling sheets of crossing through Carburization Treatment 15, and anti-drilling sheet 15 usefulness one anti-drill bushing 16 is sealed, and anti-drill bushing 16 rivet clasps are on external lock head capsule 6.Be provided with a shift fork 8 between the inside and outside tapered end 1,2, shift fork 8 is enclosed within on the inside and outside lock core 3,5, top shelves 9 and outer top shelves 10 in shift fork 8 centers are provided with, inside and outside top shelves 9,10 are provided with two boss 11 respectively symmetrically, one top shelves core 12 series connection of inside and outside top shelves 9,10 usefulness, two top shelves 9,10 can freely rotate around top shelves core 12.Inside and outside lock core 3,5 afterbodys and inside and outside top shelves 9,10 part that matches has a groove 13, and inside and outside top shelves 9,10 are by the boss on it 11 and these groove 13 positioning and guidings, and it can be free to slide in inside and outside lock core 3,5.Be respectively equipped with four row's hoodles, 14, four row's hoodles 14 in the inside and outside tapered end 1,2 and be the right-angled intersection arrangement.The front end of outer again tapered end 2 is provided with a trim 17.

Claims (4)

1, a kind of tapered end, comprise inner lock head (1) and outer tapered end (2), inner lock head (1) comprises internal cylinder (3) and internal lock head capsule (4), outer tapered end (2) comprises outer lock core (5) and external lock head capsule (6), it is characterized in that: described inner lock head (1) fixedly becomes a conjuncted tapered end with outer tapered end (2) by tapered end frame (7), inside and outside tapered end is provided with a shift fork (8) between (1,2), and shift fork (8) is enclosed within on the inside and outside lock core (3,5); Top shelves (9) and outer top shelves (10) in described shift fork (8) center is provided with, inside and outside top shelves (9,10) are respectively equipped with boss (11), inside and outside top shelves (9,10) are connected with top shelves cores (12), and two top shelves (9,10) can freely rotate around top shelves cores (12); Inside and outside lock core (3,5) afterbody and inside and outside top shelves (9,10) part that matches have a groove (13), and inside and outside top shelves (9,10) are by the boss (11) on it and this groove (13) positioning and guiding, and it can be free to slide in inside and outside lock core (3,5); Be respectively equipped with four row's hoodles (14) in the described inside and outside tapered end (1,2), four row's hoodles (14) are right-angled intersection and arrange.

2, tapered end as claimed in claim 1 is characterized in that: described inside and outside tapered end (1,2) semicircular in shape.

3, tapered end as claimed in claim 1 or 2, it is characterized in that: anterior outer lock core (5) face of described outer tapered end (2) is provided with two anti-drilling sheets of crossing through Carburization Treatment (15), anti-drilling sheet (15) is sealed with an anti-drill bushing (16), and anti-drill bushing (16) rivet clasp is on external lock head capsule (6).

4, tapered end as claimed in claim 3 is characterized in that: the front end of described outer tapered end (2) is provided with a trim (17).

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