CN201705033U

CN201705033U - Code lock operated by key

Info

Publication number: CN201705033U
Application number: CN201020133211XU
Authority: CN
Inventors: 艾纯强
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-17
Filing date: 2010-03-17
Publication date: 2011-01-12
Anticipated expiration: 2020-03-17

Abstract

The utility model relates to a code lock operated by a key, wherein a limit piece of the code lock is provided with a rotating disc which has a certain distance with a night lock core, is limited by a core shaft and is provided with a groove, and the same ends of the core shaft and an inner lock core are respectively provided with gears, thereby leading teeth of the two gears to mutually mesh or mutually mesh through a middle transmission gear. The code lock can be opened just on condition of having the key and knowing a code.

Description

By key operated coded lock

Technical field

The utility model relates to a kind of by key operated coded lock.

Background technology

Traditional coded lock has a driver chuck that is installed in the wing visible surface and this wing another side is installed and by three or more rolling disc of single axis limit, each rolling disc is provided with a groove.When opening this kind coded lock, at first with driver chuck by the position that clockwise rotates first numeral after, again by counterclockwise rotating to second digit position, so until last digit position, make the groove on each rolling disc axially become straight line, lock just can be opened.Though the coded lock of this kind structure can't open it under the situation of password not knowing, for the people that the experience of unblanking is arranged, can simultaneously rotate driver chuck, the careful sound of listening rolling disc in the lock of one side can be judged the password of this lock, thereby lock is opened, so this kind coded lock is dangerous.

Traditional cylinder lock has a columniform lock cylinder that has keyhole, and this lock cylinder comprises internal cylinder and outer lock core, internal cylinder and outer lock core radially be provided with the cylindrical hole that is interconnected, pellet shot from a slingshot different in size all is installed in each hole.When unblanking, at first key is extend in the keyhole, make the sawtooth of differing heights on the key corresponding with the pellet shot from a slingshot of different length, key can make internal cylinder rotate, and then lock is opened.Though the structure of mechanical type cylinder lock is varied, as lockhole is in-line, criss-cross lock cylinder, but it all adopts the mode of top pellet shot from a slingshot to unblank, and there is the space of a straight cylinder in the lockhole of this lock, the experienced person of unblanking can utilize special tool(s) that all pellets shot from a slingshot are all pushed into interface between the inside and outside lock core marble hole, lock can be opened by means of torsion, so, the cylinder lock of this kind structure can utilize technical opening, does not realize antitheft effect.

For this reason, the name of Chinese patent 2531060Y number bulletin is called " key combination coded lock " and provides a solution.This kind coded lock comprises cylindrical internal cylinder and an outer lock core identical with billiards lock structure, and three rolling discs of double as keeper are installed on internal cylinder.The coded lock of this kind structure is to utilize key and check mark dual mode that lock is opened, though the coded lock of single relatively check mark and cylinder lock have certain safety effect, but, rolling disc is installed in structure on the lock cylinder because adopting, and the lock of this kind structure is installed on the one hand and process all relative difficulty, because of the lock cylinder of cylinder lock must comprise inside and outside two lock cores, and outer lock core also must guarantee to have certain axial length, just can make the cylinder lock performance be difficult for the effect of being opened arbitrarily, and internal cylinder also must grow the very long segment distance of outer lock core and have certain thickness rolling disc could be installed thereon, thereby can increase the wing of this kind of installation lock and the thickness of wing frame, the increase of wing and wing frame thickness is not only increases the cost problem, give simultaneously and install and transport and also bring many difficulties, main problem is that wing and the increase of wing frame thickness can't improve safety factor, problem that rolling disc occurs be installed on internal cylinder be because of rolling disc heavier relatively, if internal cylinder is also thicker, need bigger rotatory force that internal cylinder is rotated, now add long rotating torque is arranged between key and the rolling disc, ordinary person is difficult to operation, if internal cylinder is thinner, rolling disc is difficult for being fixed on the internal cylinder, and the application life of influence lock; On the other hand, because the rolling disc of lock cylinder and coded lock all is arranged on the same position, as long as with bigger external force collision or impact, just can simultaneously lock cylinder and rolling disc be destroyed together, it also is to lock a blue-sky principal element that the time of destroying lock shortens.

Summary of the invention

Task of the present utility model provides mode that a kind of utilization separates lock cylinder and rolling disc and solves and install and processing, and problem such as destroyed easily by key operated coded lock.

The coded lock by key operated that the utility model proposed comprises locating part that is made of plate and the lock cylinder that is installed on this locating part, this lock cylinder comprises internal cylinder and outer lock core, also be equipped with on the locating part and lock cylinder between be separated with the rolling disc that has groove that limits by mandrel of certain distance, and the same end in mandrel and internal cylinder is separately installed with a gear, makes the tooth of two gears be meshing with each other or be meshing with each other by intermediate drive gear.

Outermost rolling disc is provided with 2-8 and transfers code holes in the described rolling disc.

Between adjacent two rolling discs, be provided with video disc.

The utility model proposed only just can be opened it having key and know under the prerequisite of password by key operated coded lock, so this coded lock can be realized dual fail-safe; Lock cylinder and rolling disc adopt discrete structure simultaneously, can shorten the axial length of lockset on the one hand, reduce the thickness of wing, are that installation and making are all very convenient on the other hand; In addition, rolling disc is mounted in the rear of the locating part that is made of plate, even if utilizing special tool opens lock cylinder or destroy, because of rolling disc also is difficult for found or destruction, adopt thicker plate to make as locating part, do not adopt modes such as gas cutting can't rotate rolling disc, so this kind coded lock insures very much.

Description of drawings

Accompanying drawing 1 is the surface structure schematic diagram by an embodiment of key operated coded lock that the utility model proposes;

Accompanying drawing 2 is cross-sectional view of Fig. 1;

Accompanying drawing 3 is side-looking cross-sectional view of cipher lock 3 among Fig. 1.

The specific embodiment

Referring to Fig. 1 to Fig. 3, these three accompanying drawings provide the surface structure by an embodiment of key operated coded lock that the utility model proposes.This coded lock comprises locating part 1, lock cylinder 2, cipher lock 3 and gear 4.Cipher lock 3 wherein comprises mandrel 31 and rolling disc 32.

Locating part 1 is the parts that are used for fixing lock cylinder 2 and cipher lock 3.The locating part 1 that provides in the present embodiment adopts two blocks of

rectangle plates

11 and 12, and wherein, rectangle plate 12 is provided with and is used to show first opening 13 that pulls out the code-disc number and is used for second opening 14 that key inserts.Rectangle plate 11 is connected by the bolt 15 that is installed in four bights with 12.

Lock cylinder 2 is identical or close with the lock core structure of cylinder lock of the prior art, it comprises columniform internal cylinder and outer lock core, outer lock core has a columniform hollow cavity, the external diameter of internal cylinder is identical with the shape of cylindrical cavity and can insert in it, radially be provided with through hole at internal cylinder and outer lock core correspondence position, in through hole, be equipped with pellet shot from a slingshot different in size (because of internal cylinder and outer lock core and pellet shot from a slingshot all same as the prior art or close, so do not provide concrete structure among the figure).The lockhole 21 that axially is provided with the key insertion at the internal cylinder middle part.

Cipher lock 3 comprise be installed on the locating part 1 and and 2 of lock cylinders be separated with the mandrel 31 of certain distance, three rolling discs 33 that have groove 32 are installed on this mandrel 31, and between adjacent two rolling discs 33, are provided with video disc 34.Outermost rolling disc is provided with 2-8 and transfers code holes 35 in the rolling disc 33, each transfers code holes 35 all can adjust one group of password, screwed an accent sign indicating number bolt 37 on an accent code holes 35 therein, be respectively arranged with a pulling block 36 on two faces of middle rolling disc, the innermost layer rolling disc is provided with a pulling block 38.Pull out code-disc (not providing concrete structure among the figure) being equipped with near mandrel 31 ends of internal layer rolling disc.Because the course of work of cipher lock 3 is same as the prior art, so no longer elaborate in the present embodiment.

Gear 4 comprise the driving gear that is installed on the lock cylinder 2 41 and be installed in driving gear 41 the same side mandrels 31 on driven gear 42, driven gear 42 is provided with convenient three through holes 44 adjusting password, a travelling gear 43 is installed between driving gear 41 and driven gear 42, and travelling gear 43 is meshed with driving gear 41 and driven gear 42 respectively.Also can transmit rotatory force between driving gear 41 and the driven gear 42 by the mode of direct engagement.

In use, after being inserted into key in the lockhole 21, screw key rotates internal cylinder then, rotate to drive driving gear 41, drive driven gear 42, mandrel 31 and rolling disc 33 by driving gear 41 successively by travelling gear 43 and rotate, according to behind the password rule rotation rolling disc 33 lock being opened.

Claims

1. by key operated coded lock, this coded lock comprises locating part that is made of plate and the lock cylinder that is installed on this locating part, this lock cylinder comprises internal cylinder and outer lock core, it is characterized in that: also be equipped with on the described locating part and lock cylinder between be separated with the rolling disc that has groove that limits by mandrel of certain distance, and the same end in mandrel and internal cylinder is separately installed with a gear, makes the tooth of two gears be meshing with each other or be meshing with each other by intermediate drive gear.

2. coded lock according to claim 1 is characterized in that: outermost rolling disc is provided with 2-8 and transfers code holes in the described rolling disc.

3. coded lock according to claim 1 and 2 is characterized in that: be provided with video disc between adjacent two rolling discs.