CN87210314U - Anti-thief bicycle lock with bidirectional spring lock - Google Patents

Abstract

The utility model relates to an improved crab anti-thief bicycle lock. A lock head of the existing bicycle lock is a unidirectional and single row cylinder structure lock; the lock has the problem of: the lock is easy to unlock the bicycle lock by a foreign matter inserting into the lock core keyhole to rotate the lock core. The utility model installs a bidirectional and single row spring lock head on the lock casing of the crab-type bicycle lock; the lock head has high security, can prevent the foreign matter unlocking the bicycle lock effectively; accordingly, and the bicycle lock ensures the bicycle is not stolen.

Description

Anti-thief bicycle lock with bidirectional spring lock

The utility model is a kind of anti-theft device that is installed on the bicycle.

The anti-theft device that bicycle uses has chain lock and crab type spring lock.Crab type spring lock has characteristics easy to install and use, but present crab type pellet shot from a slingshot lock all is the tapered end that adopts unidirectional single-row billiard, there is such problem in this tapered end: be exactly to be opened by foreign matter easily, for the people who gains the essentials, without key, and open lock with regard to the energy rotational lock core with fiddling with a few minutes in foreign matters such as pocket knife, the small iron plate insertion keyhole.

The purpose of this utility model is that a kind of improved crab type pellet shot from a slingshot bicycle lock will be provided, and it can improve the security performance of lock effectively, prevents the foreign matter unlatching, thereby bicycle is played antitheft effect.

The purpose of this utility model is achieved in that installs bidirectional single-row billiards structure tapered end on the lock housing of crab type pellet shot from a slingshot bicycle lock.When closing lock, because the highly confidential property that billiards structure had of bidirectional single-row pellet shot from a slingshot, foreign matter inserts keyhole and lock can't be pushed aside, thereby guarantees the not stolen mistake of bicycle.

The utility model and original crab type pellet shot from a slingshot bicycle lock structure are roughly the same, and difference is: because the starting point of the present utility model is to improve the security performance of lock tapered end, thereby adopted the bidirectional single-row billiards structure lock to make tapered end.This tapered end foreign matter is difficult to push aside because will dial this two to pellet shot from a slingshot, often be able to this to and have no time to attend to that to.

The concrete structure of utility model is provided by following accompanying drawing.

Fig. 1 be the utility model proposes " facing and side view of the anti-theft bicycle lock of two-way billiards structure tapered end, ratio is 1:1.5.

Fig. 2 is the A-A section among Fig. 1, and ratio is 1:1.

Describe details and working condition in detail below in conjunction with Fig. 1 and Fig. 2 according to the concrete device that the utility model proposes.

This device comprises a lock housing (2), fix a bidirectional single-row billiards structure tapered end (1) on the lock housing, on it, pintle hook lock (12) is fastened on the tapered end with fastening turn (8), pintle hook lock links to each other with the spring that is fixed on rivet a (9), and the rotation of lock core (15) can drive pintle hook lock and rotate.

Between lock housing (2) and the lock end (6), lock ring (3) is connected with the spring that is fixed on rivet b (10), is inlaid with spanner (4) on the lock ring and has groove (14), and lock housing is fixing with rivet (7) (totally 5) with the lock end, and is locked with cover mouth (5).

Tubular rivet (11) and hole (16) are that a lock is used when installing bicycle.

When pressing lower ejector lever, when making pintle hook lock fall into groove on the lock ring, lock is closed.(as Fig. 2)

Work as key rotation lock core, drive pintle hook lock and turn right when breaking away from groove, lock ring moves under the effect of spring (10), and lock is opened.

Fig. 3 (ratio 2:1) and Fig. 4 (ratio 1:1) are the two-way billiards structure tapered ends in " anti-theft bicycle lock of two-way billiards structure tapered end " that the utility model proposes.

Describe the details and the working condition of two-way billiards structure lock in detail below in conjunction with Fig. 3 and Fig. 4.

This device comprises a lock body (3), has in the lock body in a lock core (1) and each pellet shot from a slingshot hole, six pellet shot from a slingshot holes (6) spring (5) and two pellets shot from a slingshot (4) are arranged.

When key inserted lock core (1), key just between lock core (1) and lock body (3), was at this moment rotated in the junction that makes two pellets shot from a slingshot (4) in each pellet shot from a slingshot hole (6) owing to the tartar depth of key, gets final product rotational lock core.

Fig. 5 (ratio 1:1) is the key of two-way billiards structure lock.

Claims (2)

1, is installed in crab type lock on the bicycle, a lock ring (3) is arranged on this lock device, inlay spanner (4) in the above, connect spring (10) and have groove (14), lock ring is between lock housing and the lock end (6), at the control lower edge of spring (10) circular motion, fixing tapered end (1) on lock housing, the rotation of its lock core (15) drives pintle hook lock (12) and turns right, pintle hook lock is connected with spring (9), fixes the billiards structure tapered end (1) of a bidirectional single-row pellet shot from a slingshot on the lock housing (2) that is characterised in that crab type lock of the present utility model.

2, device according to claim 1 is characterized in that tapered end adopts the bidirectional single-row billiards structure lock, every to pellet shot from a slingshot hole (6) hole count be 2～5, two is 4～10 to pellet shot from a slingshot hole hole count.

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