CN2228951Y - Anti-theft bicycle lock - Google Patents

Abstract

The utility model discloses a novel theftproof bicycle lock, it is by the lock body, and lock beam, lock beam shell and link are constituteed, and its structural feature is, has set up a lock beam locating piece in the lockhole upper end of lock body, and the cover has a spring that plays the cushioning effect on the lock beam, and the spring is sealed in the lock beam shell. The anti-theft bicycle lock overcomes the defects that the hole alignment is difficult to realize when the existing anti-theft lock is locked and the lock beam is easy to move up and down to cause noise when a bicycle runs, has simple structure, is beautiful and convenient, is a safe and effective anti-theft bicycle lock, and can be widely applied to various bicycles.

Description

Anti-theft bicycle lock

The utility model relates to a kind of lock, particularly a kind of antitheft automatic lock.

At present, the anti-theft bicycle lock kind is a lot of on the market, they all are made up of lock body, lock bridge, link etc. substantially, include lock core, lockhole, dead bolt, lock push jack and spring etc. in the lock body, during use, lock bridge inserts lockhole and promotes the lockhole sheet, and the snap close on lock bridge top is blocked by dead bolt in the back that puts in place, reaches the antitheft purpose of lock car.In the above-mentioned anti-theft bicycle lock be with the comparatively approaching a kind of Vehicle lock structure of the present invention, adopting a columniform lock bridge to be interspersed in a profile is in the cylindrical lid shell, the lid shell is installed on the end of link by rivet, and make by a torsion spring and to cover shell and drive between lock bridge and the link and can make relative rotary motion, cylindrical lock bridge can be done relative straight reciprocating motion with covering between the shell.When unblanking at ordinary times, cylindrical lock bridge is perpendicular to by the car, string is moving up and down in the lid shell in order to avoid lock bridge, also has a groove on cylindrical lock bridge, the groove built-in spring, one end of spring peaks at an end of groove, other end tegmentum shell blocks, and when unblanking, lock bridge is regained rapidly under the effect of spring like this, and under the torsion spring effect, be in plumbness, can also avoid lock bridge when driving, to go here and there up and down and make a noise.But the weak point that this anti-theft bicycle lock construction also exists is: lock bridge is difficult for aiming at when the insertion lockhole is locked car, often needing both hands to cooperate could realize, so it is inconvenient and time-consuming when using, in addition, this is locked in the placement spring of slotting on the lock bridge and mays I ask topic to solve to go here and there up and down, this just makes that a spring part that is positioned at groove must expose, the one, not attractive in appearance, two meet the rainy day also has water and enters, spring is got rusty, thereby reduction of service life, and lock bridge fluting also can reduce intensity, causes theftproof performance to weaken.

The purpose of this utility model is to provide a kind of can make lock bridge rapid alignment lockhole, and lock bridge can not gone here and there up and down and anti-theft bicycle lock easily simple in structure, attractive in appearance during driving.

For achieving the above object, technical measures of the present utility model are such, it remains based on said structure, promptly by lock body, lock bridge, lock bridge shell and link are formed, include lock core in the lock body, lockhole, dead bolt, lock push jack and spring, lock bridge is interspersed on the lock bridge, and connect for sliding pair between them, the lock bridge shell constitutes revolute by a torsion spring with an end of link and is connected, and lock body is fixed in the other end of link, and its design feature is, one lock bridge locating piece is housed above the lockhole of lock body, it is separate piece both, also can be connected as a single entity with link, and the lower limb of locating piece aligns with the lockhole peritreme; The lock bridge shell is interior and be with a spring on lock bridge, and the end retaining of spring is on lock bridge, and the other end keeps off on the lock bridge shell.Whole spring is to be enclosed in the lock bridge shell.When locking, as long as lock bridge is rotated to locating piece, push away lock bridge to lockhole, hear that dead bolt ejects sound, dead bolt blocks the snap close on lock bridge top, has promptly finished the process of locking.When unblanking, key inserts the rotation of lock core up time, by the cam principle dead bolt is broken away from the snap close of lock bridge, and then lock bridge will be under the double action of spring and torsion spring, promptly return and rotatablely move as straight line, until lock bridge perpendicular to car by.Meanwhile the lock push jack in the lockhole push up past dead bolt under spring action, the smooth insertion of lock bridge when guaranteeing that lock next time.

The utility model compared with prior art its significant advantage is: because locating piece is arranged, can insert lock bridge in the lockhole by one hand when locking rapidly (1), accurately convenient, time saving and energy saving; (2) be with the spring of cushioning effect on the lock bridge, when when driving, particularly meeting Uneven road, can not occurred going here and there up and down and cause noise; (3) spring that is placed on the lock bridge all is enclosed in the lock bridge shell, so condition of work is better, long service life; (4) changed and having on lock bridge fluting now and add the deficiency that spring brings, lock bridge intensity is improved, theftproof performance is good.

Concrete structure of the present utility model is further specified by drawings and Examples.

Accompanying drawing is the overall structure schematic diagram of anti-theft bicycle lock described in the utility model.

By accompanying drawing as seen, anti-theft bicycle lock is by lock body 1, lock bridge 2, lock bridge shell 3, link 4, locating piece 5 is formed, include lock core 6 in the lock body 1, lockhole 7, dead bolt 8, lock push jack 9 and spring 10,11, the internal construction of lock body 1 is same as the prior art, locating piece 5 is connected as a single entity with link 4, be positioned at the top of lockhole 7, and align with the peritreme of lockhole 7, lock bridge 2 is long 12mm, diameter is the cylindrical rod of 10mm, the tapered end end of lock bridge 2 is along circumferentially having wide 4mm, the groove of dark 2mm is as snap close, the other end is added with a boss that dismountable 2mm is wide, the profile of lock bridge shell 3 is 42 * 16mm cuboid, the thick 1.5mm of shell, lock bridge 2 passes from lock bridge shell 3, in lock bridge shell 3 and on lock bridge 2, be with a spring 13, one end of spring 13 is blocked on the lock bridge shell 3, the other end is blocked on the back-up ring 14 that is provided with on the lock bridge 2, the position of back-up ring 14 is located at the upper end of lock bridge 2, back-up ring 14 to lock bridge 2 lower ends are that the distance of tapered end should be to make when locking, before the tapered end of lock bridge 2 just in time is positioned at lockhole 7, and the piece 5 that is positioned blocks.Above-mentioned lock body 1 case, lock bridge 2, lock bridge shell 3, link 4, locating piece 5 are by A3 or 45 ^#Steel is made.

Claims (1)

1. A kind of anti-theft bicycle lock; It is by lock body (1), lock bridge (2), lock bridge shell (3) and link (4) are formed, include lock core (6) in the lock body (1), lockhole (7), dead bolt (8), lock push jack (9) and spring (10), (11), lock bridge (2) is interspersed on the lock bridge shell (3), and connect for sliding pair between them, lock bridge shell (3) constitutes revolute by a torsion spring (12) with an end of link (4) and is connected, lock body (1) is fixed in the other end of link (4), it is characterized in that lock bridge locating piece (5) being housed in lockhole (7) upper end of lock body (1), in the lock bridge shell (3) and on lock bridge (2), be with a spring (13), the one end retaining of spring (13) is on lock bridge (2), and the other end keeps off on lock bridge shell (3).