CN2106211U - Double safety lock for bicycle - Google Patents

Abstract

The utility model belongs to a double-safety bicycle lock, which is provided with a lock ring and a lock tongue. A lock case with a lock tongue, a spring and a lock catch hole, an unlocking press button, and a lock catch matched with the unlocking press button are additionally arranged on the basis of the traditional crab type gear lock, and a cam wheel used for controlling a lock tongue switch is arranged on a lock core. The utility model locks a wheel through a lock ring, and a steering device of the lock tongue, using the same lock core and the key to simultaneously control the locking and unlocking operation of the lock ring and the lock tongue. Compared with the similar double-safety lock, the utility model has the advantages of simple structure, convenient operation, reliability and low cost, overcoming the defects of the similar double-safety locks that two sets of lock cores needed, the structure is complicated, the cost is high, etc.

Description

Double safety lock for bicycle

The utility model belongs to ring a kind of both with lock, and the double insurance bicycle lock of tongue with lock is particularly a kind of by lock ring lock wheel again, dead bolt lock steering mechanism, and the bicycle lock that adopts same lock core and key to control.

The crab type bicycle lock of generally producing and using in the society all can only lock wheel, and can not pin steering mechanism simultaneously, thereby safety is relatively poor at present.Stolen in order to prevent bicycle better, the someone has designed a kind of two lock cores of being with, and both can lock wheel, can pin the bicycle lock of steering mechanism again.As: the application number of Li Yuncheng design is 90212524.9, and name is called " double insurance bicycle lock " and just belongs to this class lock.Though this lock has safe and reliable advantage, owing in lock housing, established two cover lock cores, therefore lock car, it is extremely inconvenient particularly to unblank, and must action lock could be lived or open for twice.Also there is complex structure simultaneously, the disadvantage that cost is higher.

Purposes such as the purpose of this utility model is to design a kind of the bicycle lock of controlling lock ring and dead bolt open and close with a lock core simultaneously, and to reach simple in structure, theftproof is good, and is easy to use, reliable and reduce cost.

Solution of the present utility model is on the basis of existing crab type gear lock, increases dead bolt box, dead bolt and the matching used with it snap close of a lock steering mechanism.Still adopt lock ring lock wheel, and lock steering mechanism by dead bolt box, dead bolt and the snap fit that is fixed on the slash.Dead bolt and compression spring are positioned at the dead bolt box, and are fixed on the lock body by the dead bolt box, also are provided with the snap close patchhole on the dead bolt box, and lock ring and dead bolt are all controlled its open and close by same lock core and key; Also set up a cam on the lock core on the basis of original gear, both all are anchored on the lock core.Wherein: gear is in order to cooperate the open and close of controlling lock ring and to drive cam rotation simultaneously with tooth bar on the lock ring; Cam then cooperates with dead bolt and controls its open and close, and the pommel of dead bolt is close to by spring force and cam wheel rim.Also be provided with the spinal plate of a unlock button and a band spring leaf on the lock body, the position of the pressure fixing lock of this spinal plate by spring gear and cam when locking states; After key inserts lockhole, then remove its positioning action, and make lock ring return (promptly opening) under the effect of return spring by pushing unlock button; Back down dead bolt by tooth bar, gear and lock core strap cam simultaneously, thereby simultaneously lock ring and dead bolt are opened.The utility model promptly reaches its goal of the invention by such scheme.

The utility model and the phase-locked ratio of traditional dual-insurance have reduced by a cover lock core; Owing to adopt gear and cam mechanism to cooperate with lock ring and dead bolt respectively, and by same lock core and key control, not only have simple in structure, theftproof and good airproof performance, easy to use, reliable, the characteristics of low cost of manufacture, and can pin wheel and steering mechanism simultaneously, play the effect of dual fail-safe.

Accompanying drawing and description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is for the installation of lock body, snap close and be coupled to each other (when being locking) view.

Among the figure: 1, be lock body, 2, return spring, 3, lock ring, 4, tooth bar, 5, gear, 6, cam, 7, release the button 8, the spinal plate cursor, 9, spinal plate, 10, spring leaf, 11, snap close, 12, compression spring, 13, dead bolt box, 14, protruding canine teeth type dead bolt, 15, lock core, 16, bicycle slash, 17, bicycle front fork, 18, the dead bolt jack.

Embodiment

Return spring 2 in the utility model, lock ring 3, gear 5, spinal plate 9, spring leaf 10, the structure of other parts such as lock core 15 grades, size are all same with crab type gear lock; Lock body 1, basic structure also identical.Present embodiment dead bolt 14 adopts protruding canine teeth type dead bolt, the cold-reduced sheet punch forming, dead bolt box 12 adopts allumen die casting also to be riveted on lock body 1, upper left quarter; Snap close 11 also adopts the cold-reduced sheet punch forming, bonnet lock hole be 8 * 3mm(long * wide), connects employing snap ring and bolton with car thick stick 16, the edge of a knife of separating of bolt is located between the snap close back side and the lock body 1, stretches into it is taken off to prevent to separate when the lock-out state cutter.Cam adopts cold-reduced sheet, and curved surface is an Archimedes spiral, base radius R8mm, and tip circle radius R 16mm together is anchored on the lock core 15 with gear 5; The pommel of protruding canine teeth type dead bolt then by compression spring 12, is close to the cam outer rim.

During installation, in the front fork rear portion, snap close then is fixed on the slash lock body by screw and bolton.When need are lived lock, at first snap close is inserted in the snap close jack 18 on the dead bolt box 13, then key is inserted lock core and to turning clockwise.Along with cam tip circle face leaves the dead bolt pommel, dead bolt descends under the effect of compression spring 12 gradually, thereby snaps in the bonnet lock hole; Meanwhile, gear drives tooth bar again lock ring 3 is pushed in the lock ring hole on opposite, thereby realizes pinning simultaneously the purpose of wheel and steering mechanism.When need are unblanked, again key is inserted in the lock core, push unlock button 7 then, this button promotes spinal plate cursor 8, and spinal plate 9 is withdrawed from teeth groove, this hour rack 4 under the effect of return spring 2 to clockwise motion, and driven gear, lock core and cam rotate to inhour rapidly.When tooth bar put in place, cam tip circle face also upwards pushed up dead bolt from bonnet lock hole simultaneously, thereby reaches the purpose of unblanking.

Claims (2)

1, a kind of bicycle lock with dual fail-safe comprises lock body, tooth bar, lock ring, lock core and gear, it is characterized in that also comprising on the lock body tongue box with lock and a matching used with it snap close of cover and as the unlock button of throwing off ratchet; Dead bolt and spring are positioned at lock box, and also comprise a cam in order to the open and close of control dead bolt on lock core; This cam and gear together are fixed on the lock core, the fastening one that is coupled to of dead bolt box and lock body, and unlock button then is riveted on the lock body inwall versatilely, and snap close then inserts in the dead bolt jack and is used with lock body.

2, by claim 1, the bicycle lock of described band dual fail-safe is characterized in that described dead bolt is a protruding canine teeth type dead bolt.

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