CN201236541Y - Lock head device - Google Patents

Abstract

The utility model relates to a mechanical lock which comprises an outer lock core and an inner lock core. A ring-shaped groove is formed on the surface of inner lock core; an arc-shaped sheet blade is arranged in the ring-shaped groove; a sheet blade groove is arranged on one side of the sheet blade; an inner lock core separation blade groove is arranged on the surface of the inner locker core of the ring-shaped groove; a side separation blade is arranged the inner lock core separation blade groove; an outer lock core separation blade groove which has the same length as the inner lock core separation blade groove is arranged in the position where the outer lock core corresponds with the inner lock core separation blade groove; a lock sheath used for opening a lock tongue is arranged at the front end of the inner lock core; a sheath groove is formed in the lock sheath; the sheath groove and the outer lock core separation blade groove can form a groove shaped like a '7'; a suitable '7'-shaped outer separation blade is arranged in the '7'-shaped groove; the outer separation blade presses the side separation blade under the action of the spring; the lock core can rotate when key teeth is not matched with sheet gear parts, but a lock head can not be opened so that the false image is generated so as to confuse an intruder.

Description

A kind of lock head device

[technical field]

The utility model relates to a kind of mechanical lock, relates in particular to a kind of lock head device.

[background technology]

Lock in the market is various, various in style, but the lock of sample whatsoever, with regard to its substantive structure, can roughly be divided into two big classes: a class is to combine by pearl under the last pearl, pearl is single circular beads with following pearl on it, and the change in size of following pearl is carried out permutation and combination, and how many mutual opening rates of how many decision locks of its permutation and combination is.The mutual opening rate of this conventional lock is very high, usually the mutual opening rate of lock is in two one thousandths, and the more important thing is that this conventional lock is easy to be opened it in a short period of time with unlocking tool (as screwdriver, special iron wire or other special tool etc.) by the robber, make it lose theftproof performance.Two classes are atom locks popular on the existing market, this lockset also is the circular beads structure, just it locks some difference part with descending pearl traditionally, promptly improved with interior pressure or external pressure side bumper sheet locking principle, when this class lock has just been put on market, also obtained customer's approval, but service time is of a specified duration excessively, the robber is more and more familiar to this type of lock structure, and research is arranged deeply, finally also is not reach anti-theft effect, because the tartar conversion of atom lock also produces at the diverse location of circular beads, and circular beads with descend pearl lock the same traditionally, that leans on circular beads during unlatching moves up and down the locking edge catch, it is the most handy that this principle is unblanked to the robber.And the atom lock is single pearl structure owing to be subjected to its structural limitations usually entirely, so mutual opening rate is also than higher.

[summary of the invention]

At the deficiencies in the prior art part, the purpose of this utility model provides a kind of safe, theftproof good, mutual opening rate is low lock head device.

For achieving the above object, the utility model adopts following technical scheme: a kind of lock head device, comprise outer lock core and internal cylinder, and the internal cylinder surface is provided with many cannelures, is provided with corresponding arc page or leaf sheet in the cannelure, and page or leaf sheet one side respectively is provided with one page sheet groove; Internal cylinder is being provided with an internal cylinder catch groove with page or leaf sheet groove corresponding section, in catch is on one side arranged; Outer lock core is provided with the suitable mutually outer lock core catch groove of a length with internal cylinder catch groove corresponding position; The internal cylinder front end is provided with a lock sheath that is used for unlock deadbolt, and the lock sheath has a lock sheath groove, and lock sheath groove can form " 7 " font groove with outer lock core catch groove, and a suitable mutually outer catch of " 7 " font is arranged in " 7 " font groove of formation; Outer catch presses down the pilled-in selvedge catch in the spring action that is positioned at outer lock core; When page or leaf sheet tooth portion and key tooth flower not exclusively coincide, each page sheet groove was not in same straight line, and the side bumper sheet is in the internal cylinder catch groove fully, and outer catch corresponding site is in the outer lock core catch groove fully, and internal cylinder is rotatable and outer catch is motionless; Each page sheet groove is in same straight line and the side bumper sheet is entered in page sheet groove when page or leaf sheet tooth portion and key tooth flower fit like a glove, outer catch corresponding site is just entered in the internal cylinder catch groove fully, internal cylinder can drive outer catch when rotating, and rotates and unlock deadbolt thereby drive the lock sheath.

The keyhole of above-mentioned lock head device (20) cross section is " S " font.

Above-mentioned lock head device is provided with two page or leaf sheets and a leaf spring in the cannelure, leaf spring one end props up the flange of one page sheet, and the other end props up the flange of another page sheet.

Above-mentioned lock head device is provided with slider between the cannelure.

Above-mentioned lock head device, slider is the fixing arc spacer of the groove that is provided with by lock core between cannelure, and the spacer middle part is suitable mutually with the key cross section, and side is provided with and the corresponding spacer groove of internal cylinder catch groove.

Above-mentioned lock head device, cannelure are perpendicular to the central axis of lock core, and internal cylinder catch groove is positioned at the place, centre position on cannelure surface.

Above-mentioned lock head device, outer lock core catch groove place radially is provided with circular hole along lock core, and the U-shaped tube places in the circular hole, and the activity of one end is crimped on outer catch, and the other end contacts with spring on being against the circular hole capping.

The supporting key of a kind of and described lock head device comprises the shank of the key, key shoulder and spoon sheet, it is characterized in that: the spoon sheet cross section of described key is the serpentine that matches with the keyhole cross section.

The beneficial effects of the utility model are: even when key tooth flower is misfitted with a page or leaf sheet tooth portion, lock core also can rotate, but but can not drive the lock sheath of unlock deadbolt, thereby causes false picture to the people, the fascination thief.Even when thief's instrument that uses force forces to insert the tapered end rotation like this, it is dallied, and can't unlock deadbolt.Only when key tooth flower coincide with page or leaf sheet tooth portion, the rotation of lock core could drive lock sheath, unlock deadbolt.Thereby increased the disguise of lock core, further improved security performance and theftproof performance.

[description of drawings]

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

Fig. 1 is the utility model embodiment locking (idle running) state cross sectional representation;

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

Fig. 3 is the utility model embodiment opening cross sectional representation;

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

Fig. 5 is the front view of lock core among the utility model embodiment;

Fig. 6 is the front view of page or leaf sheet among the utility model embodiment;

Fig. 7 is the front view of spacer among the utility model embodiment;

Fig. 8 is the supporting Key structure schematic diagram of the utility model embodiment tapered end;

Among the figure 1, outer lock core, 2, internal cylinder, 3, cannelure, 4, page or leaf sheet, 5, the page or leaf sheet, 6, leaf spring, 7, flange, 8, page or leaf sheet groove, 9, page or leaf sheet tooth portion, 10, spacer, 11, the spacer groove, 12, the side bumper sheet, 13, outer catch, 14, internal cylinder catch groove, 15, outer lock core catch groove, 16, lock sheath, 17, lock sheath groove, 18, spring, 19, U-shaped tube, 20, keyhole, 21, the shank of the key, 22, key shoulder, 23, spoon sheet, 24, tartar, 25, the projection of serpentine, 26, page or leaf sheet, 27, leaf spring.

[specific embodiment]

Embodiment one

Lock head device of the present utility model, comprise outer lock core 1 and internal cylinder 2, its keyhole 20 cross sections are serpentine, internal cylinder 2 surfaces are provided with many cannelures 3, be provided with slider between the cannelure 3, slider is the fixing arc spacer 10 of the groove that is provided with by lock core between cannelure 3, spacer 10 middle parts are suitable mutually with the key cross section, and side is provided with and internal cylinder catch groove 14 corresponding spacer grooves 11. Be provided with two page or leaf sheets 4,5 and a leaf spring 6 in the cannelure 3, leaf spring 6 one ends prop up the flange 7 of one page sheet 4, and the other end props up the flange 7 of another page sheet 5, and page or leaf sheet 4,5 one sides respectively are provided with one page sheet groove 8; Internal cylinder 2 is being provided with an internal cylinder catch groove 14 with page or leaf sheet groove 8 corresponding sections, in catch 12 is on one side arranged; Spacer 10 middle parts are suitable mutually with the key cross section, and side is provided with and internal cylinder catch groove 14 corresponding grooves. Cannelure 3 is perpendicular to the central axis of lock core, and internal cylinder catch groove 14 is positioned at the place, centre position on cannelure 3 surfaces.Outer lock core 1 is provided with the suitable mutually outer lock core catch groove 15 of a length with internal cylinder catch groove 14 corresponding positions; Internal cylinder 2 front ends are provided with a lock sheath 16 that is used for unlock deadbolt, and lock sheath 16 has a lock sheath groove 17, and lock sheath groove 17 can form " 7 " font grooves with outer lock core catch groove 15, and a suitable mutually outer catch 13 of " 7 " font is arranged in " 7 " font groove of formation; Outer lock core catch groove 15 places radially are provided with circular hole along lock core, and U-shaped tube 19 places in the circular hole, and the activity of one end is crimped on outer catch 13, and the other end contacts with spring 18 on being against the circular hole capping, and outer catch 13 presses down pilled-in selvedge catch 12 in spring 18 effects; When page or leaf sheet tooth portion 9 not exclusively coincide with key tooth flower, each page sheet groove 8 is not in same straight line, side bumper sheet 12 is in the internal cylinder catch groove 14 fully, and outer catch 13 corresponding sites are in the outer lock core catch groove 15 fully, and internal cylinder 2 is rotatable and outer catch 13 is motionless; Each page sheet groove 8 is in same straight line and side bumper sheet 12 is entered in page sheet groove 8 when page or leaf sheet tooth portion 9 fits like a glove with key tooth flower, outer catch 13 corresponding sites are just entered in the internal cylinder catch groove 14 fully, internal cylinder 2 can drive outer catch 13 when rotating, and rotates and unlock deadbolt thereby drive lock sheath 16.

When unblanking, must use supporting with it key when unblanking, spoon sheet 23 cross sections of described key are the serpentine that matches with keyhole 20 cross sections, after key inserted keyhole, under the guiding of key guide mouth, page or leaf sheet 4,5 begin to relatively move, leaf spring 6 begins to shrink, the tooth portion 9 of page or leaf sheet enters in the key tooth flower separately accordingly, makes page sheet 4,5 page or leaf sheet groove 8 and spacer groove 11 states in alignment, side bumper sheet 12 is under the external pressure effect of U-shaped tube 19 and spring 18, enter in page sheet groove 8 and the spacer groove 11, outer washer 13 corresponding sites of outer lock core catch groove interior 15 are entered in the internal cylinder catch groove 14, and key is rotated internal cylinder 2 again, and the outer washer 13 of drive rotates, rotate thereby drive lock sheath 16, dead bolt is opened, as Fig. 1, shown in 2.

If when using the key that does not match, then after key inserts keyhole, under the guiding of key guide mouth, page or leaf sheet 4,5 begins to move, leaf spring 6 begins to shrink, because key tooth flower is not corresponding with the tooth portion 9 of page or leaf sheet, therefore the page or leaf sheet groove 8 of page or leaf sheet 4,5 can't state in alignment.Like this, limit washer 12 can't enter a page sheet groove 8, still is positioned at internal cylinder catch groove 14; Correspondingly, outer washer 13 corresponding sites also just still are positioned at outer lock core catch groove 15.At this moment, key again, internal cylinder 2 can corresponding rotating, but outer catch 13 can not rotate, so lock sheath 16 and also can not rotate, also just can't unlock deadbolt.But, give the thief illusion to open because tapered end is in the locking states of idle running.Even when thief's instrument that uses force forces to insert the tapered end rotation like this, it is dallied, and can't unlock deadbolt.

In addition, the projection 25 of serpentine can be used as one group of contour tartar on spoon sheet 23 cross sections of described key, only in tooth portion of this group tartar and corresponding at least one page sheet 26 at once, all pages sheet 4,5, the page or leaf sheet groove 8 and spacer groove 11 states in alignment at 26 outer arc places, side bumper sheet 12 is under the external pressure effect of U-shaped tube 19 and spring 18, enter in page sheet groove 8 and the spacer groove 11, the outer washer 13 of outer lock core catch groove interior 15 is entered in the internal cylinder catch groove 14, key again, internal cylinder 2 is rotated, and drive outer washer 13 rotations, and rotate thereby drive lock sheath 16, dead bolt is opened.The keyhole 20 of serpentine makes the disguised of lock core further increase like this, thereby has further improved the security performance and the theftproof performance of lock core.

Claims (6)

1, a kind of lock head device comprises outer lock core (1) and internal cylinder (2), and internal cylinder (2) surface is provided with many cannelures (3), is provided with corresponding arc page or leaf sheet (4) (5) in the cannelure (3), and page or leaf sheet (4) (5) one sides respectively are provided with one page sheet groove (8); Internal cylinder (2) is being provided with an internal cylinder catch groove (14) with page or leaf sheet groove (8) corresponding section, in catch (12) is on one side arranged; It is characterized in that: outer lock core (1) is provided with the suitable mutually outer lock core catch groove (15) of a length with internal cylinder catch groove (14) corresponding position; Internal cylinder (2) front end is provided with a lock sheath (16) that is used for unlock deadbolt, lock sheath (16) has a lock sheath groove (17), lock sheath groove (17) can form " 7 " font groove with outer lock core catch groove (15), and a suitable mutually outer catch (13) of " 7 " font is arranged in " 7 " font groove of formation; Outer catch (13) presses down pilled-in selvedge catch (12) in the spring that is positioned at outer lock core (1) (18) effect; When page or leaf sheet tooth portion (9) not exclusively coincide with key tooth flower, each page sheet groove (8) is not in same straight line, side bumper sheet (12) is in the internal cylinder catch groove (14) fully, outer catch (13) corresponding site is in the outer lock core catch groove (15) fully, and internal cylinder (2) is rotatable and outer catch (13) is motionless; Each page sheet groove (8) is in same straight line and side bumper sheet (12) is entered in page sheet groove (8) when page or leaf sheet tooth portion (9) fits like a glove with key tooth flower, outer catch (13) corresponding site is entered in the internal cylinder catch groove (14) fully, internal cylinder (2) can drive outer catch (13) when rotating, and rotates and unlock deadbolt thereby drive lock sheath (16).

2, lock head device according to claim 1 is characterized in that: its keyhole (20) cross section is " S " font.

3, lock head device according to claim 1 and 2, it is characterized in that: be provided with two page or leaf sheets (4) (5) and a leaf spring (6) in the cannelure (3), leaf spring (6) one ends prop up the flange (7) of one page sheet (4), and the other end props up the flange (7) of another page sheet (5).

4, lock head device according to claim 1 and 2 is characterized in that: cannelure is provided with slider between (3).

5, lock head device according to claim 3 is characterized in that: cannelure is provided with slider between (3).

6, lock head device according to claim 5, it is characterized in that: slider is the fixing arc spacer (10) of the groove that is provided with by lock core between cannelure (3), spacer (10) middle part is suitable mutually with the key cross section, and side is provided with and the corresponding spacer groove (11) of internal cylinder catch groove (14).

Images