CN2220979Y

CN2220979Y - Bicycle lock

Info

Publication number: CN2220979Y
Application number: CN 94247638
Authority: CN
Inventors: 宋亚军
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-10
Filing date: 1994-12-10
Publication date: 1996-02-28
Anticipated expiration: 2004-12-10

Abstract

The utility model relates to a bicycle lock, comprising a lock body (2), a lock core (1), lock pins (7), and a lock ring (3). The lock body is fixed on a bicycle frame, and one end of the lock body is provided with a flat cylindrical hollow cavity (10). The lock ring is arranged in the flat cylindrical hollow cavity; meanwhile, the lock ring is also sleeved on the bearing sleeve of the rear wheel of a bicycle, and the lock ring and the bearing sleeve are fixed. A plurality of concave slots (12) are arranged on the outer circumferential surface of the lock ring. When the lower ends of the lock pins (7) are extended from lock pin holes on the lock body, the lower ends of the lock pins (7) are inserted in the concave slots (12) on the outer circumference of the lock ring, and therefore, a bicycle is locked. Due to the fact that the bicycle lock and the bicycle are combined into an integral body, the lock pins can not exposed, thus, the bicycle lock is more firm, and the anti-prizing performance of the bicycle lock is good.

Description

Bicycle lock

The utility model relates to a kind of structure of bicycle lock.

General bicycle lock all adds up after the bicycle assembling finishes again, is fallen by sled easily, and safety performance is relatively poor.Chinese patent 91216800.5 has been introduced the theft-proof bicycle lock of a kind of energy, just is installed in the vehicle frame when bicycle is made, and in order to the locking front fork it can not be turned to, the pick-proof better performances.

The purpose of this utility model is to propose a kind of bicycle lock that is installed in the hind axle place, has pick-proof performance preferably.

This bicycle lock comprises the retainer of lock body, lock core, lock pin and an annular arrangement.One lock core cavity and lockpin hole are arranged on the lock body, and lock core places in the lock core cavity, and lock pin places in the lockpin hole.The internal diameter of retainer is identical with the external diameter of the bearing carrier ring of bicycle rear, some recessed grooves are arranged on the outer ring side face of retainer, one end of lock body has the cavity of an oblate cylindricality, and retainer places in the above-mentioned cavity, inserts when stretch out in lockpin hole the lower end of lock pin in the groove on the retainer excircle.

This bicycle lock needs to install on the bicycle when bicycle is assembled, and lock body is fixed on the vehicle frame at rear axle place, and retainer is enclosed within outside the bearing carrier ring of trailing wheel, fixes with bearing carrier ring.When lock pin inwardly inserts, locked by lock core, the lower end of lock pin is stretched in the groove on the retainer excircle, and retainer can not rotate, and the connection by bearing carrier ring can not be rotated trailing wheel.Car promptly is lockable.Behind key rotation lock core, lock pin is released, and pops up, and withdraws from retainer and fix with it that together bearing carrier ring, trailing wheel etc. all can rotate with respect to vehicle frame, car promptly is unlocked the groove of the lower end of lock pin from retainer.Because this lock and bicycle are combined into one, lock pin does not expose, thereby relatively firmly, the pick-proof performance is good.

Accompanying drawing 1 is the integral structure figure of this lock;

Accompanying drawing 2 is the constructional drawing of lock body;

Accompanying drawing 3 is the constructional drawing of retainer;

Accompanying drawing 4 is the constructional drawing of another kind of retainer.

As shown in Figure 1, lock core cavity (14) and lockpin hole (15) are arranged on the lock body of this bicycle lock (2), lock core (1) places in the lock core cavity (14), and lock pin (7) places in the lockpin hole (15).Lock core to the control principle of lock pin and common phase-locked with.Lock core turns over an angle, and lock pin can pop up; Lock pin inwardly inserts, and lock core resets, and lock pin promptly is limited, can not on lift.The cavity (10) of one oblate cylindricality is arranged at the bottom of lock body, and retainer (8) places in this cavity.The lower end of lock pin can be stretched in the groove (12) on the retainer excircle.Retainer (3) is enclosed within outside the bearing carrier ring (8) of trailing wheel, and fixes with it.(4) are bearing inner sleeve among the figure, and (5) are axle, and (9) are ball, and (6) are for promoting the spring of lock pin.

There is the oblate cylindrical cavity (10) of placement retainer (3) lower end of lock body (2) as shown in Figure 2.

As shown in Figure 4, retainer is an annular arrangement, and the diameter of its endoporus (11) is identical with the external diameter of bicycle rear bearing carrier ring, and some recessed grooves (12) are arranged on its outer circumference surface.

As shown in Figure 3, more convenient in order to make, groove on the outer circumference surface of retainer (3) (12) can be made the succeeding vat of an annular, some screws (13) are distributing in the groove, these screws are used for retainer is fixed on the bearing carrier ring on the one hand, succeeding vat can be separated into one section one section on the other hand, when lock pin inserts, cooperate with it, retainer can not be rotated.

Claims

1, a kind of bicycle lock, comprise lock body (2), lock core (1), lock pin (7), one lock core cavity (14) and lockpin hole (15) are arranged on the lock body, lock core places in the lock core cavity, lock pin places in the lockpin hole, it is characterized in that it also comprises the retainer (3) of an annular arrangement, the internal diameter of retainer is identical with the external diameter of the bearing carrier ring of bicycle rear, some recessed grooves (12) are arranged on the outer circumference surface of retainer, one end of lock body (2) has the cavity (10) of an oblate cylindricality, retainer places in the above-mentioned cavity, inserts when stretch out in lockpin hole the lower end of lock pin (7) in the groove (12) on the retainer excircle.

2, bicycle lock as claimed in claim 1 is characterized in that the groove (12) on the outer circumference surface of described retainer (3) is an annular succeeding vat, and some screws (13) are distributing in the groove.