CN2630412Y

CN2630412Y - Bicycle lock for preventing key from not pulling-out

Info

Publication number: CN2630412Y
Application number: CN 03209636
Authority: CN
Inventors: 龚勉
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 2003-08-11
Filing date: 2003-08-11
Publication date: 2004-08-04
Anticipated expiration: 2013-08-11

Abstract

The utility model relates to the technical field of a bicycle, in particular to a lock that prevents you from forgetting to pick out the key, which comprises a casing, a lock loop, a lock core and an upper lock handle. The utility model is characterized in that a lock loop (2) is provided with an upper lock (6) and the lock loop (2) is fixed in a casing (1). A spacing ring (4) is welded on the lock loop (2). Meanwhile, on the corresponding place of the spacing ring (4) with the casing (1), a ring notch (3) is opened. Compared with the prior art, the utility model is easy to be operated and has a better anti-theft performance. Therefore, the utility model can be applied in a bike, a power-driven bike and an assistant bike, and is cost-effective, easy to be produced and worth being promoted.

Description

A kind of lock of bicycle unpulling-out proof key

[technical field]

The utility model relates to technical field of bicycles, is a kind of lock of bicycle unpulling-out proof key specifically.

[technical background]

Traditional bicycle lock, the back key of unblanking pulls out to get off, and usually can forget to pull key behind the lock car and cause losing of bicycle.

[summary of the invention]

The purpose of this utility model provides a kind of novel bicycle lock, when unblanking, must pull up key otherwise the lock can not open, for achieving the above object, design a kind of bicycle lock, the lock that is a kind of bicycle unpulling-out proof key specifically is made up of shell, lock ring, lock core, the handle of locking etc., it is characterized in that having on the lock ring 2 handle 6 of locking, and lock ring 2 is fixed in the lock housing 1, on lock ring 2, weld a spacing ring 4, and leave an annular breach 3 in shell 1 upper limit ring 4 corresponding positions of lock.

The utility model is compared with prior art, and is easy and simple to handle, and good anti-theft effect can apply to bicycle, electric bicycle, power assist vehicle etc., and cost is low, and processing is simple, is worthy of popularization.

[description of drawings]

Fig. 1 is lock lockup state figure of the present utility model.

Fig. 2 is lock opening figure of the present utility model.

Appointment Fig. 1 is a Figure of abstract.

Referring to accompanying drawing, 1 is lock housing, and 2 is lock ring, and 3 is annular breach, and 4 is spacing ring, and 5 is lock core, and 6 are the handle of locking.

[embodiment]

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

Referring to accompanying drawing, on lock ring 2, weld a spacing ring 4, and leave an annular breach 3 in shell 1 upper limit ring 4 corresponding positions of lock, when bicycle is locked, pull the handle 6 of locking, lock will be locked, and the spacing ring 4 of lock aligns with lock core 5; When unblanking because the limited ring 4 of key blocks, and lock ring 2 can not resilience, and lock is not opened, when pulling up key, lock ring 2 resiliences, lock is opened, and must pull up key after guaranteeing to unblank, and has forgotten to pull key after preventing to lock to cause losing of bicycle.

Claims

1, a kind of lock of bicycle unpulling-out proof key is made up of shell, lock ring, lock core, the handle of locking etc., it is characterized in that having on the lock ring (2) handle of locking (6), and lock ring (2) is fixed in the lock housing (1).

2, bicycle lock as claimed in claim 1 is characterized in that, goes up welding one spacing ring (4) at lock ring (2), and leaves an annular breach (3) in shell (1) upper limit ring (4) corresponding position of lock.