CN2178268Y

CN2178268Y - Theft-proof lock for bicycle

Info

Publication number: CN2178268Y
Application number: CN 93245806
Authority: CN
Inventors: 张宁; 陈为川; 谷元斌; 叶文华
Original assignee: XINING LOCK FACTORY
Current assignee: XINING LOCK FACTORY
Priority date: 1993-11-23
Filing date: 1993-11-23
Publication date: 1994-09-28
Anticipated expiration: 2003-11-23

Abstract

The utility model relates to a theft-proof lock for bicycles, which can be used for locking the front wheel and the handle bar of a bicycle and can also be used for locking the back wheel of the bicycle. The utility model is composed of a lock body, a lock beam, etc., wherein, the lock body is arranged on the tripod of the bicycle; the lock beam is composed of a plurality of cone-shaped locking pillars which are movably sheathed on a steel wire rope; a lock tongue hole is a through hole, the locking pillar is locked with the lock tongue, and the lock beam can only be shrunk along one direction. The theft-proof lock has strong flexibility, and can simultaneously lock the front wheel and the handle bar; the lock beam can be strung, and the utility model is safe and difficult to be sawn, smashed or pried.

Description

Theft-proof lock for bicycle

Described in the utility model is a kind of anti-theft lock for bicycle, and it is mainly used in lock bicycle front-wheel and handlebar.

The design of anti-theft lock for bicycle at present is existing multiple, but it is few to be used to lock the design of front-wheel and handlebar.The function of existing bicycle front fork lock and bicycle handle bar's lock is also more single, and the handlebar lock can only pin the handlebar of bicycle, and the installation more complicated of lock, and the direction that bicycle front fork lock can only pin front vehicle wheel and can not pin handlebar simultaneously.

The purpose of this utility model is to provide a kind of can overcome above-mentioned defective, easy to install, safe and reliable, can pin the anti-theft lock for bicycle of front-wheel and handlebar direction simultaneously.

The technical solution of the utility model is: this theftproof lock is made of lock body, lock bridge, lock core, dead bolt, the dead bolt hole opened on lock body.Have the ∪ shape bayonet socket that matches with the bicycle tripod beam on the lock body, dead bolt hole is a through hole, lock bridge is identical by several geomeries and the flexible beam that constitutes of the latch post of kink on steel cable that be separated from each other, latch post is a cone, its axis overlaps with wire rope, the big end of each latch post and small end are respectively with the small end of adjacent two latch post in addition or hold end to end greatly, latch post large end face and dead bolt hole cross section kissing, its tapering and length make dead bolt can stretch out fully two adjacent latch post joints, lock bridge one end is fixed on the lock body, the other end is a free end, each the latch post large end face that constitutes lock bridge is to its fixed end, and small end face is to its free end.During use, lock body is ridden over the correct position of bicycle tripod by ∪ shape bayonet socket, for simplicity, lock body can be fixed on the bicycle tripod, at this moment have additional one with the supporting installation sheet of lock body, it and lock body ∪ shape bayonet socket can form a sealing or semi-enclosed hole, the car beam of lock body installation place is trapped among wherein, and installation sheet is installed on the lock body by screw, tightens screw, the car beam tightly can be clamped, lock body is fixed.During locking, earlier lock bridge is enwinded wheel or the handlebar of being locked, then the lock bridge free end is penetrated dead bolt hole, locking begins.The free end of pulling lock bridge, the inclined-plane of latch post compressing dead bolt moves lock bridge along its free end direction in dead bolt hole, because latch post is a cone, when lock bridge moves, at two end to end places of latch post, dead bolt will eject automatically, when the dead bolt At time of eject, the big end of its back side and a latch post joins, and lock bridge can not oppositely be twitched, play the locking effect, because adopt a plurality of latch post, this lock bridge can be at the many places locking, to adapt to different demands.For reaching optimum efficiency, when drawing, lock bridge goes locking when motionless again, can lock bicycle directional.Because the lock bridge structure is limit, it can only be locked in a direction, and shrink in another direction.Latch post, is difficult for by sawed-off to increase its hardness through Quenching Treatment.Change the size of this lock, it also can be used as the theftproof lock of motorcycle etc.

The anti-theft lock for bicycle that the utility model provides has ∪ shape bayonet socket, and is provided with installation sheet on the lock body, easy to install.Lock bridge is a flexible beam, and dead bolt hole is a through hole, and adopts the taper latch post, and flexibility is strong, can pin front-wheel and handlebar simultaneously, and the tension lock bridge can make front-wheel and handlebar arbitrarily not rotate again, and good anti-theft effect is safe and reliable, and latch post is difficult for being sawed, pounding, prize.This lock also can be used for locking trailing wheel, and effect is also good.

The utility model has following accompanying drawing.

Fig. 1 is this lock user mode one embodiment schematic diagram.Fig. 2 is Figure 1A-A view.

Fig. 3 locks non-locking states structure one embodiment schematic diagram for this.

Fig. 4 is this lock locking states structure one embodiment schematic diagram.

As shown, cant beam was near the handlebar place before this lock was installed in bicycle tripod, and lock body (1) is tightly clamped by ∪ shape bayonet socket and installation sheet (2) Jiang Cheliang, and lock is fixed on the bicycle, and lock bridge (3) is put front-wheel on the spot, and with its locking.In its structure chart, theftproof lock is by lock body (1), lock bridge (3), lock core (4), dead bolt (5), dead bolt hole (6) constitutes, have the ∪ shape bayonet socket (11) that matches with the bicycle tripod beam on the lock body (1), dead bolt hole (6) is a through hole, lock bridge (3) is identical by several geomeries and the flexible beam that constitutes of the kink that the is separated from each other latch post (31) on steel cable (32), latch post (31) is a cone, its axis overlaps with wire rope (32), big end of each latch post (31) and small end are respectively with the small end of adjacent two latch post (31) in addition or hold end to end greatly, latch post (31) large end face and dead bolt hole (6) cross section kissing, its tapering and length make dead bolt (5) can stretch out fully in two adjacent latch post (31) joint, lock bridge (3) one ends are fixed on the lock body (1), the other end is a free end, each the latch post large end face that constitutes lock bridge is to its fixed end, and small end face is to its free end.For making lock bridge flexible better; have the taper hole (33) that can hold adjacent with it another latch post (31) small end top at the big end of latch post (31); for easy to use; lock bridge (3) free end also is added with a lead (34); for protecting the car beam not impaired; locate also to be added with one deck pad (12) at lock body (1) ∪ shape bayonet socket (11), also can add one deck neonychium on the installation sheet.

This lock also can be used for the anti-lock of usurping of case and bag, door etc.

Claims

1, a kind of anti-theft lock for bicycle, by lock body (1), lock bridge (3), lock core (4), dead bolt (5), the dead bolt hole of opening on lock body (1) (6) constitutes, it is characterized in that: have the U-shaped bayonet socket (11) that matches with the bicycle tripod beam on the lock body (1), dead bolt hole (6) is a through hole, lock bridge (3) is identical by several geomeries and the flexible beam that constitutes of the kink that the is separated from each other latch post (31) on steel cable (32), latch post (31) is a cone, its axis overlaps with wire rope (32), big end of each latch post (31) and small end are respectively with the small end of adjacent two latch post (31) in addition or hold end to end greatly, latch post (31) large end face and dead bolt hole (6) cross section kissing, its tapering and length make dead bolt (5) can stretch out fully in two adjacent latch post (31) joint, lock bridge (3) one ends are fixed on the lock body (1), the other end is a free end, each latch post (31) large end face that constitutes lock bridge (3) is to its fixed end, and small end face is to its free end.

2, theftproof lock as claimed in claim 1, it is characterized in that: have additional one with the supporting installation sheet (2) of lock body (1), it and lock body (1) ∪ shape bayonet socket can form a sealing or semi-enclosed hole, the car beam of lock body (1) installation place is trapped among wherein, and installation sheet (2) is installed on the lock body (1) by screw.

3, theftproof lock as claimed in claim 1 or 2 is characterized in that: the big end of latch post (31) has the taper hole (33) that can hold adjacent with it another latch post (31) small end top.

4, as claim 1 or 2 or 3 described theftproof locks, it is characterized in that: lock bridge (3) free end also is added with a lead (34).

5, theftproof lock as claimed in claim 1 or 2 is characterized in that: locate to be added with one deck pad (12) at lock body (1) ∪ shape bayonet socket (11).