CN2152870Y

CN2152870Y - Anti-theft bicycle lock

Info

Publication number: CN2152870Y
Application number: CN 93213122
Authority: CN
Inventors: 曾和平
Original assignee: XIAOGAN CITY LOCK FACTORY
Current assignee: XIAOGAN CITY LOCK FACTORY
Priority date: 1993-05-22
Filing date: 1993-05-22
Publication date: 1994-01-12
Anticipated expiration: 2003-05-22

Abstract

The utility model relates to an anti-theft bicycle lock which is composed of a lock shell and a lock core, wherein, the lock shell is fully closed; the key slot and a key body of the lock core are in a 'Y' shape. The lower part of the lock core is provided with a stop rod, and a spring is sheathed on the stop rod. The utility model has the advantages of firmness, high durability, prizing prevention and convenient use. Because the utility model is fully closed, the utility model can not be deformed by rain and moisture.

Description

Anti-theft bicycle lock

The utility model is a kind of anti-theft bicycle lock.

The lock housing of the bicycle lock that uses has opening at circumferencial direction at present, makes the car stealer be easy to pry open lock body.Another gear type lock after using over a long time, easily deforms after especially making moist through drenching with rain, and is difficult for opening, for the user brings inconvenience.

The purpose of this utility model is to overcome the deficiency of above-mentioned prior art and a kind of anti-theft bicycle lock of designing.Its firm pick-proof again, easy to use, durable.

The purpose of this utility model is to be reached by following measure: by the bicycle lock that lock housing, lock core constitute, lock housing is a full-closed structure.The key of lock core is " Y " type, and " Y " type angle is 80～115 degree, and arresting lever is equipped with in the lock core bottom.

Below in conjunction with accompanying drawing the utility model is elaborated:

Fig. 1 is the front view of lock

Fig. 2 analyses and observe for lock core

Fig. 3 is the lock core side sectional view

Fig. 4 is hook-shaped connector

Fig. 5 is a frame shape connector

Among the figure: 1-lock housing, 2-lock core, 3-arresting lever, 4-point wheel, 5-spring, 6-key, 7-turn round frame, 8-lock bridge, 9-tack spring, 10-round end pellet shot from a slingshot, 11-spring, 12-connector beam, 13-auricle, 14-circle cover.

Lock housing 1 is a full-closed structure, and promptly lock housing is enclosed in no any opening and slit in the housing with lock bridge, makes the firm pick-proof of whole lock like this.The key of lock core 2 is " Y " type, and " Y " type angle is 80～115 degree.The cross section of key is identical with " Y " type of key, is processed with double key tooth on " Y " type.This design has improved the confidentiality of this lock and the performance of anti-technical unlocking.Arresting lever is equipped with in the bottom of lock core.Arresting lever stretches in the lock core and joins with gear 4.Be set with spring 5 on the arresting lever.

The key 6 that is inserted in the lockhole is rotated, simultaneously driven gear 4 and torsion spring 7.Lock bridge 8 stretches into the other end from an end lock housing under the drive of gear.At this moment after lock bridge put in place, arresting lever headed in the teeth groove of gear 4 under the effect of spring 5.After locking key is extracted.Tack pellet shot from a slingshot 9 in the lock core and round end pellet shot from a slingshot 10 are stuck under the effect of spring 11 in the key of lock core, and the key without this lock can not insert lockhole like this, and lock can not be opened.。When unblanking, key is inserted pulling arresting lever downwards, the restoring force driven gear and the lock bridge of torsion spring are opened lock automatically.

Key design is double key bit, and the cross section of key body " Y " type angle is 80～115 degree, and is best with 90 degree.

Lock is loaded on of connector top on the bicycle for colluding shape or frame shape, and the other end is processed with screw thread.The bottom is that the circle cover that stretches out the ear shape directly is housed on lock housing.It is firm that this connector connects, and is difficult for loosening.

Because the utility model is compact to design, simple in structure, the structure uniqueness of lock and key makes this lockset that sled property, confidentiality be arranged.Because lock ring adopts quality material through Quenching Treatment, lock ring intensity is big, and anti-saw is anti-to be cut.

Claims

1, a kind of anti-theft bicycle lock comprises lock housing, lock core, it is characterized in that:

A) the lock housing housing is a full-closed structure, and promptly lock housing is enclosed in lock bridge in the housing, does not stay opening and slit,

B) the key core groove of lock core is " Y " type, and " Y " type angle is 80～115 degree,

C) arresting lever is equipped with in the bottom of lock core, and arresting lever stretches in the lock core and contacts with gear, is with spring on the arresting lever.

2, lock as claimed in claim 1 is characterized in that the cross section of key body is identical with " Y " type of key, is processed with double key tooth on the Y type.

3, lock as claimed in claim 1, the Y type optimum angle that it is characterized in that key are 90 degree.

4, lock as claimed in claim 1 is characterized in that this lock is loaded on of connector top on the car for colluding shape or frame shape, and the other end is processed with screw thread.The bottom is that the circle cover that stretches out the ear shape directly is housed on lock housing.