CN2905982Y

CN2905982Y - Theftproof lock for bicycle

Info

Publication number: CN2905982Y
Application number: CN 200620102679
Authority: CN
Inventors: 姚春燕; 陈晓孟
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2006-04-14
Filing date: 2006-04-14
Publication date: 2007-05-30
Anticipated expiration: 2016-04-14

Abstract

Disclosed is a theft-proof lock for the bike, which comprises a lock body. Wherein a lock core is arranged in the lock body to match with a key, the lock core is linked with a dial pole, and the dial pole is connected with a reversion spring and combined with a lock groove in a lock handle; A code device is provided inside the lock body, which comprises the exerted code key-presses, a code-setting means, a code-transmission means, a steel wire can process concertina movement. The output of the code-transmission means is connected to one end of the steel wire, and the other end of the steel wire is connected with a block piece. The block piece is arranged in the vertical groove in the lock core. The block piece matches to the dial pole. The utility model provides a theft-proof lock for the bike with simple structure, good theft-proof performance, low manufacturing cost, good integrate performance, and good practicability.

Description

Anti-theft lock for bicycle

(1) technical field

The utility model relates to a kind of anti-theft lock for bicycle.

(2) background technology

Theftproof lock on the market is varied now, but much all has certain defective.Some theftproof locks are improved on precision, certain required precision height, the cost height; Some are firmly being improved on the degree, mainly are to increase some material usages, and lock seems more slightly, gives some sense of security of people, but and generally lock the common defects of the same avoidance the " key is driven many locks "; Some theftproof locks are several grotesque keys of design, and this does not avoid root problem yet, and key can not join, and lose one few one; Some theftproof lock designers are in the same place lock and car design.Existing theftproof lock, otherwise the precision height, theftproof performance is good, manufacturing cost is high, complex structure; To required precision is not high, theftproof is poor, low cost of manufacture, simple in structure.The combination property of theftproof lock is poor, practicality is not strong.

(3) summary of the invention

In order to overcome the deficiency that existing anti-theft lock for bicycle combination property is poor, practicality is not strong. the utility model provide a kind of possess simultaneously simple in structure, theftproof performance good, low cost of manufacture, good combination property, practical anti-theft lock for bicycle.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of anti-theft lock for bicycle, comprise lock body, the lock core that cooperates with key is installed in the lock body, described lock core and driving lever interlock, described driving lever connects returning spring, described driving lever cooperates with locked groove on the shank of the key, encryption apparatus also is installed in the described lock body, described encryption apparatus comprises the password key that exposes, password setting mechanism, the steel wire of code word transmission mechanism and scalable motion, the output of described code word connecting gear connects an end of steel wire, the other end of described steel wire connects catch, and described catch is installed in the vertical channel of lock core, and described catch cooperates with driving lever.

Operating principle of the present utility model is: the primary structure of lock is divided into three layers: the layer of unblanking, and code layer, the key layer has only, key correct when password just can open lock with lock core when identical.Owing to added cryptography architecture, increased very big psychological pressure to the thief, deciphering is to make the pain in the neck feelings of thief, time-consuming deciphering process can make thief's spiritual high-pressure, generally all can abandon, thereby turn to easier other targets of going smoothly, strengthen security performance.

Beneficial effect described in the utility model mainly shows: 1, theftproof performance is good; 2, not high to required precision, easily manufactured; 3, mechanical cipher is relatively simple for structure, cost of production is low; 4, good combination property, cost performance height, practicality are good.

(4) description of drawings

Fig. 1 is the structure chart of anti-theft lock for bicycle.

Fig. 2 is the correct anti-theft lock structure figure of password.

Fig. 3 is the anti-theft lock structure figure of unlocking condition.

Fig. 4 is the anti-theft lock structure figure of password error condition.

(5) specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of anti-theft lock for bicycle, comprise lock body 1, the lock core 3 that cooperates with key 2 is installed in the lock body 1, described lock core 3 and driving lever 4 interlocks, described driving lever 4 connects returning spring 5, described driving lever 4 cooperates with locked groove on the shank of the key 6, in the described lock body 1 encryption apparatus 7 is installed also, described encryption apparatus 7 comprises the password key that exposes, password setting mechanism, the steel wire 8 of code word transmission mechanism and scalable motion, the output of described code word connecting gear connects an end of steel wire 8, and the other end of described steel wire 8 connects catch 9, described catch 9 is installed in the vertical channel of lock core 3, and described catch 9 cooperates with driving lever 4.

When the password of encryption apparatus 7 dial to the time, steel wire 8 can move down, and drives catch 9 and moves down and be illustrated in fig. 2 shown below.Insert key afterwards, and the twisting key, then catch 6 meeting drive driving levers 4 are removed the locked groove on the shank of the key 6, and shank of the key 6 can take out, and unblanks to finish, as shown in Figure 3.The process of locking is same as the prior art.

If it is right that password is not dialled, then steel wire 8 can not descend the position of Fig. 1, and catch 9 can not drive driving lever 4, even if insert key and twist key, as shown in Figure 4, driving lever 4 does not pull open from locked groove, and shank of the key 6 can't pump out, and can not normally unblank.

Claims

1, a kind of anti-theft lock for bicycle, comprise lock body, the lock core that cooperates with key is installed in the lock body, described lock core and driving lever interlock, described driving lever connects returning spring, described driving lever cooperates with locked groove on the shank of the key, it is characterized in that: encryption apparatus also is installed in the described lock body, described encryption apparatus comprises the password key that exposes, password setting mechanism, the steel wire of code word transmission mechanism and scalable motion, the output of described code word connecting gear connects an end of steel wire, the other end of described steel wire connects catch, and described catch is installed in the vertical channel of lock core, and described catch cooperates with driving lever.