CN2127731Y

CN2127731Y - Anti-picking bicycle lock

Info

Publication number: CN2127731Y
Application number: CN 92212286
Authority: CN
Inventors: 沈其衡
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-02-26
Filing date: 1992-02-26
Publication date: 1993-03-03
Anticipated expiration: 2002-02-26

Abstract

The utility model discloses an anti-picking device for a bicycle lock, relating to a bicycle lock. The utility model is made through adding the anti-picking device on an original mechanical bicycle lock, a strip of passing slot is processed on the end of a lock ring, a rivet is arranged at the middle of an opening point next to the foot of a lock case, when the lock is locked, the passing slot is inserted in the rivet and the lock case, and an entirety which is difficult to be destroyed, and the anti-theft function can be achieved. The utility model has the advantages of reasonable structure, enhanced rigidity, and good anti-destroying performance, which is suitable for various bicycle locks.

Description

Anti-picking bicycle lock

The utility model relates to a kind of bicycle lock anti-picking device, is applicable to bicycle lock.

As everyone knows, existing bicycle lock is to be formed by two the lock housing riveteds in front and back, lock core, lock ring etc. are installed in its inside, have simple in structure, easily manufactured advantage still, and the weak point that existing bicycle lock exists is: the insufficient strength of dehiscing to locate of lock housing pin; Be easy to be inserted and pry open, make the normal selection of the robber auto theft of setting about herein by hard thing such as screwdriver.

The purpose of this utility model is to overcome above-mentioned weak point and a kind of bicycle lock anti-picking device of providing.

The utility model is to increase this anti-picking device to form on original mechanical bicycle lock; with groove of lock ring end machining; a rivet is adorned in the centre of dehiscing to locate of adjacent lock housing pin; with the lock housing riveted; during locking; lock ring is pushed in the dehiscing of opposite lock housing pin, and rivet promptly snaps in the groove of lock ring termination, lock ring groove and rivet; also have the lock housing pin to protect mutually; form an integral body that is difficult to destruction, robber's hard things such as screwdriver can't be inserted, because of there being rivet to block even insert several millimeters pin that also can't pry open lock housing; because of the lock ring groove is stuck in the middle of the rivet; rivet two is big, can't pass in the middle of groove, reaches the purpose of pick-proof.

The utlity model has rational in infrastructurely, rigidity strengthens, and preventing destructing performance is good, is fit to the plurality of bicycles lock and adopts.

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

Accompanying drawing 1 is the utility model elevation;

Sectional view when accompanying drawing 2 is the utility model locking;

The left view that accompanying drawing 3 is dehisced for the utility model lock housing pin.

With reference to Fig. 1,2,3, the utility model is made up of lock ring (1), groove (2) rivet (3), lock housing pin (4).An end face processing groove (2) of lock ring (1); respectively there is a through hole the middle both sides of dehiscing to locate of adjacent lock housing pin (4); insert rivet (3); up and down with lock housing pin (4) riveted; during locking; with hand propelled lock ring (1); lock ring (1) enters in the dehiscing of lock housing pin (4) that the opposite riveting has rivet (3); rivet (3) promptly snaps in the groove (2) of lock ring (1) end face; lock ring (1); groove (2) and rivet (3); also have lock housing pin (4) to protect mutually; form an integral body that is difficult to destruction; hard thing such as screwdriver all can't be inserted in the lock housing pin (4) because of there being rivet (3) to block both sides; also can't pry open even insert several millimeters deep very arduously, because of the groove (2) of lock ring (1) is stuck in the middle of the rivet (3), rivet (3) two is big; can't in the middle of groove (2), pass, reach the pick-proof purpose.

Claims

The bicycle lock anti-picking device mainly is made of lock ring (1), groove (2), rivet (3), lock housing pin (4), it is characterized in that the termination of lock ring (1) has a groove (2), and rivet (3) is equipped with in the centre of dehiscing to locate of adjacent lock housing pin (4).