CN2813796Y

CN2813796Y - Double-lock-cylinder lock

Info

Publication number: CN2813796Y
Application number: CN 200520044519
Authority: CN
Inventors: 吴宝富
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-25
Filing date: 2005-08-25
Publication date: 2006-09-06
Anticipated expiration: 2015-08-25

Abstract

A lock with double lock cores is characterized in that an outer lock core with an outer lock hole is additionally arranged outside a lock core of an existing spring lock. The lock is characterized in that: the long locating pin tumbler driven by spring is set at the juncture of inner and outer lock cylinders, and one side of inner lock cylinder is set with locating slot to lock the long locating pin tumbler, so it can not be opened by any unlocking tool. When the outer lock core is rotated to enable the oblique line end of the circumferential groove of the outer lock core to jack the positioning long marble to enable the inner lock core to be in a rotatable position, the outer lock hole rotates by an angle, the upper half part of the inner lock hole is completely shielded, and an unlocking tool such as a universal key or a hook steel wire cannot be inserted into the outer lock core to unlock the lock. To unlock the lock, a key with a handle must be used: the key is sleeved with a key sleeve handle, the key sleeve handle and the key sleeve handle can rotate respectively, the outer end of the key bit is provided with a rotating shaft, and the inner end of the key sleeve handle is provided with an inserting sleeve which can be inserted into the outer lock hole. When the lock is opened, a key with a sleeve handle is inserted, when the outer lock cylinder is rotated to a preset position, the oblique line end of the circumferential groove of the outer lock cylinder jacks up the positioning long marble to enable the inner lock cylinder to be positioned at a rotatable position, meanwhile, one end of the arc blind hole of the outer lock cylinder is contacted with the positioning pin of the inner lock cylinder, and the inner lock cylinder is driven by the outer lock cylinder to rotate together until the lock is opened. The lock has good anti-theft performance and simple and reliable structure.

Description

Twin-lock core lock

Technical field

The utility model relates to a kind of cylinder lock, can prevent that especially experienced robber from utilizing master key or crotch steel wire to unblank, and is the splendid twin-lock core lock of theftproof performance.

Background technology

At present, the lock core hole of known cylinder lock all exposes, and experienced robber can insert master key or the crotch steel wire is unblanked, and lacks the sense of security.

Summary of the invention

In order to overcome the deficiency that existing cylinder lock can be opened with master key or crotch steel wire.The utility model provides a kind of twin-lock core lock, and its internal cylinder when latched position has location long marble locking to rotate, and any unlocking tool all can't be opened so don't work this moment.Internal cylinder is in when turning the position, angle of exterior lockhole deflection, and the first half of lockhole also just can't inject the unlocking tool of master key or crotch steel wire and so on and open this lock all by shield in making.Thereby improve degree of safety greatly.

The technical scheme that its technical problem that solves the utility model adopts is: set up an outer lock core that is provided with exterior lockhole outside cylinder of spring lock, be provided with a location long marble that promotes with spring at intersection across interior outer lock core, being provided with the locking of locating slot and above-mentioned location long marble in internal cylinder one side can't rotate, and any unlocking tool that don't work this moment all can't be opened.Be provided with circumferential groove in outer lock core one side, groove one end is an oblique line, the other end is a vertical line, when rotating oblique line end jack-up location long marble that outer lock core makes its circumferential groove when making internal cylinder be in rotatable position, exterior lockhole has turned over an angle, the first half of lockhole all is blocked in making, and also just can't inject the unlocking tool of master key or crotch steel wire and so on and open this lock.Need to open this lock and must use the key that has toggle: be with the key toggle in the key outside, can rotate respectively between the two, the outer end of key bit is provided with rotating shaft, and the inner of key toggle is provided with the sleeve that can insert exterior lockhole.Insert the key of band handle during unlatching, when rotating outer lock core to the precalculated position, the oblique line end jack-up location long marble of outer lock core circumferential groove, make internal cylinder be in rotatable position, meanwhile a wherein end of outer lock core arc blind hole contacts with the internal cylinder alignment pin, internal cylinder is driven together by outer lock core and rotates, until opening this lock.

The beneficial effects of the utility model are: thoroughly stopped to utilize the unlocking tool of master key or crotch steel wire and so on to open this lock, theftproof performance is good, and order is simple and reliable for structure.

Description of drawings

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

Fig. 1 is the utility model structure sectional view.

Fig. 2 is the axial sectional view of the utility model (being in initial latched position).

Fig. 3 is the axial sectional view of the utility model (being in the rotatable position of internal cylinder).

Fig. 4 is the Key structure sectional view that has toggle of the present utility model.

Long marble 4. springs 5. key axles 5 a. key shaft end spheroid 5b. key axles location, 1. internal cylinder 1a. interior lockhole 1b. internal cylinder locating slot 1c. internal cylinder alignment pin 2. outer lock core 2a. exterior lockhole 2b. outer lock core circumferential groove 2c. outer lock core arc blind holes, 3. location flat axle 6. key toggle 6a. the shank of the key sleeve 6b. key toggles are located flat hole 7. location weak point pellet shot from a slingshot 8. springs among the figure

Interior lock body, outer lock body and connection thereof, go up pellet shot from a slingshot, parts such as pellet shot from a slingshot and spring do not belong to this patent down, omit among the figure and annotate or picture not.

The specific embodiment

In Fig. 1, this lock is in latched position, and location long marble (3) inserts internal cylinder locating slot (1b) under spring (4) elastic force promotes, and internal cylinder (1) can't be rotated, so do not insert the key that has toggle shown in the figure, any unlocking tool that don't work all can't be opened this lock.Referring to Fig. 3, make internal cylinder (1) be in rotatable position if manage to rotate the oblique line end jack-up location long marble (3) that outer lock core (2) makes its circumferential groove (2b), exterior lockhole this moment (2a) has turned over an angle, the first half of interior lockhole (1a) all is blocked, also just can't injects the unlocking tool of master key or crotch steel wire and so on and open this lock.

When needing to open this lock (referring to Fig. 1, Fig. 2), key axle (5) is inserted earlier in the interior lockhole (1a), swing key toggle (6) then and make the shank of the key sleeve (6a) aligning exterior lockhole (2a) and insertion wherein, key toggle this moment (6) is swung with key shaft end spheroid (5a) center of circle, make the shank of the key locate flat hole (6b) and break away from the key axle flat axle in location (5b), key toggle (6) can freely be rotated along key axial end spheroid (5a) center of circle.Clockwise direction key toggle (6) is during to the precalculated position (referring to Fig. 3), make the oblique line end jack-up location long marble (3) of outer lock core circumferential groove (2b) make internal cylinder be in rotatable position, meanwhile a wherein end face of outer lock core arc blind hole (2c) contacts with internal cylinder alignment pin (1c), internal cylinder (1) is driven together by outer lock core (2) and rotates, until opening this lock.

In the time of need extracting key (referring to Fig. 1, Fig. 3), counterclockwise key toggle (6) drives exterior lockhole (2a) rotation by the shank of the key sleeve (6a) earlier, internal cylinder alignment pin this moment (1c) moves in outer lock core arc blind hole (2c), internal cylinder (1) is not rotated, the other end until outer lock core arc blind hole (2c) contacts with internal cylinder alignment pin (1c), and internal cylinder (1) is driven together by outer lock core (2) and rotates.Until initial latched position (referring to Fig. 2, Fig. 1), the inboard of location long marble (3) is relied on by internal cylinder (1) cylindrical no longer and falls in the internal cylinder locating slot (1b), internal cylinder (1) locking can't be rotated further again, meanwhile, the outside of location long marble (3) promptly with the vertical line end in contact of outer lock core circumferential groove (2b), make outer lock core (2) can't continue counterclockwise to rotate, can extract key toggle (6) this moment.

After the key that has toggle is all extracted (referring to Fig. 4), under the elastic force effect of spring (8), the short pellet shot from a slingshot in location (7) promotes key axle (5) and swings along key axial end spheroid (5a) center of circle, make the flat axle of key positioner (5b is simultaneously referring to Fig. 2), enter the shank of the key and locate flat hole (6b, simultaneously referring to Fig. 2), with key axle (5) locking, make key axle (5) and key toggle (6) be unified into a motionless integral body, be easy to carry.

Claims

1, a kind of twin-lock core lock, it is characterized in that: outside cylinder of spring lock, set up an outer lock core that is provided with exterior lockhole, be provided with a location long marble that promotes with spring at intersection,, be provided with locating slot in internal cylinder one side in intersection two sides across interior outer lock core, be provided with circumferential groove in outer lock core one side, groove one end is an oblique line, and the other end is a vertical line, simultaneously, be provided with alignment pin in internal cylinder one side, be provided with the arc blind hole in external lock one side.

2, twin-lock core lock according to claim 1 is characterized in that being with the key toggle in the key outside, can rotate respectively between the two, and the outer end of key bit is provided with rotating shaft, and the inner of key toggle is provided with the sleeve that can insert exterior lockhole.