CN201056240Y - Anti-theft shaft lock of bicycle - Google Patents

Abstract

A bicycle theftproof shaft lock belongs to the field of design and manufacture technology of bicycle lock and comprises an auxiliary-strip frame shaft sleeve and a shaft lever; a lock core is disposed in the shaft lever, and a lock-core shifting fork is disposed in the front of the lock core; a lock tongue slot frame is arranged to cover the shaft lever, and a through-hole key is in a lock-core key hole. The present product is connected with the bicycle forked frame by nuts. The action process thereof is as follows: the key is inserted into the key hole and turned by 90 degree; the shifting fork in the front of the lock core pokes the lock tongue into the lock tongue slot frame; the key is drawn out, and the lock tongue is locked in the slot frame; the locking is finished. Because the lock tongue frame and the auxiliary-strip frame shaft sleeve are connected by welding, the auxiliary-strip frame can not rotate, and the wheels can not rotate either. To unlock, the key is turned reversaly, the lock tongue retracts into the shaft lever by the slot frame, and the unlocking is finished. The present product is simple in structure and reasonable in design. Since the lock core is disposes in the shaft lever and the lock tongue slot frame is disposed outside the shaft lever and in the auxiliary-strip frame shaft sleeve, the utility model can not be separated from the bicycle body, thereby effectively preventing technical unlocking and cutting. The utility model is an ideal security lock.

Description

The bicycle theft-prevention shaft lock

Technical field

The utility model belongs to the design and the manufacturing technology field of bicycle lock.

Background technology

The general wired lock of lockset that on the vigour of style in literary composition, uses at present, U type inserted link lock and rim lock etc.But because their self structure, its anti-theft feature is poor especially, and stealer can adopt shearing, bitting and other manipulator section that lock is opened.Therefore say that the anti-theft feature of existing lock is not very desirable.Also do not use in practice at present with the utility model like products.

Summary of the invention

The utility model is to provide a kind of anti-theft column lock that can prevent effectively that the whole bag of tricks from opening according to above-mentioned situation, to solve the problem that existing lock exists.

Structure of the present utility model is as shown in drawings: be made of auxilliary bar frame axle sleeve and axostylus axostyle.Both sides at axostylus axostyle have bearing.On an end of axostylus axostyle, have lock core hole, core with lock in the lock core hole.In lock core keyhole, have the open-work key.Have locking tappet hole at lock core and the corresponding sidepiece that reaches up and down of open-work key, have the snap pin in the locking tappet hole.The inboard of snap pin has snap.In the inboard of clamp nut one thick washer is arranged.At the outside suit one dead bolt truss of cylinder side axostylus axostyle, a dead bolt is arranged in the truss.One lock core fixed pin holes is arranged in the cylinder side axostylus axostyle, a lock core set pin is arranged in this hole.Front end at lock core has a lock core shift fork.This product is mounted on the bicycle crotch.Connect fixing by captive nut and captive nut.Course of action of the present utility model is: when the open-work key inserted lock core, key bit is with the snap pin jack-up on tooth top, and was concordant with the lock core outer edge surface.The atresia place face of key side embeds side snap pin jack-up in the key hole with the corresponding snap pin of key hole.At this moment, snap pin in lock core side is concordant with the lock core outer edge surface.The key back side is flat with snap pin top in the axostylus axostyle.90 ° of angles of key then.The snap pin aligns with dog chart pin in the axostylus axostyle in the lock core, and this moment, the shift fork of lock core front end was stirred dead bolt, and dead bolt is stretched out, and inserted the dead bolt truss.Extract key then, dead bolt is locked in the truss, can not withdraw.Because dead bolt frame and auxilliary bar frame axle sleeve are welded connection, so auxilliary bar frame can not rotate, wheel also can not rotate.Finish the operation of lock car.As the lock of looking on the bright side of things then oppositely turns key, each parts counteragent.Make in the dead bolt withdrawal axostylus axostyle, separating lock glossal canal frame is extracted key again, and dead bolt is lockable, and can not stretch out.Wheel can rotate, and finishes unlock operation.

This product structure is simple, and is reasonable in design.Owing to have the open-work key and lock core is placed in the axostylus axostyle, the lock system is not exposed to outside the car body, can not separate with car body, so unblank that for technology unlocking and shearing good preventive effect is all arranged.Can prevent the generation of the stolen situation of bicycle effectively.

Description of drawings

Fig. 1 is the utility model structural representation

1-bicycle crotch 2-bearing 3-assists bar frame axle sleeve 4-dead bolt 5-dead bolt truss 6-snap 7-open-work key 8-lock core 9-snap pin 10-clamp nut 11-thick washer 12-lock core set pin 13-lock core shift fork 14-axostylus axostyle 15-clamp nut

Fig. 2 is the utility model A-A fragmentary cross-sectional view

3-assists bar frame axle sleeve 4-dead bolt 5-dead bolt truss 13-lock core shift fork 14-axostylus axostyle

Fig. 3 is the utility model B-B fragmentary cross-sectional view

6-snap 7-open-work key 8-lock core 9-snap pin 11-thick washer 14-axostylus axostyle

The specific embodiment

Structure of the present utility model is as shown in drawings: be made of auxilliary bar frame axle sleeve (3) and axostylus axostyle (14).Have bearing (2) in the both sides of axostylus axostyle.On an end of axostylus axostyle, have lock core hole, core with lock (8) in the lock core hole.In lock core keyhole, have open-work key (7).Have locking tappet hole at lock core and the corresponding sidepiece that reaches up and down of open-work key, have snap pin (9) in the locking tappet hole.The inboard of snap pin has snap (6).In the inboard of clamp nut (10) thick washer (11) is arranged.At the outside suit one dead bolt truss (5) of cylinder side axostylus axostyle, a dead bolt (4) is arranged in the truss.One lock core fixed pin holes is arranged in the cylinder side axostylus axostyle, a lock core set pin (12) is arranged in this hole.Front end at lock core has a lock core shift fork (13).This product is mounted on the bicycle crotch (1).Connect fixing by captive nut (10) and captive nut (15).

Claims (1)

1. bicycle theft-prevention shaft lock, constitute by auxilliary bar frame axle sleeve (3) and axostylus axostyle (14), it is characterized in that: have bearing (2) in the both sides of axostylus axostyle, on an end of axostylus axostyle, have lock core hole, core with lock (8) in the lock core hole, in lock core keyhole, have open-work key (7), have locking tappet hole at lock core and the corresponding sidepiece that reaches up and down of open-work key, have snap pin (9) in the locking tappet hole, the inboard of snap pin has snap (6), in the inboard of clamp nut (10) thick washer (11) is arranged, at the outside suit one dead bolt truss (5) of cylinder side axostylus axostyle, a dead bolt (4) is arranged in the truss, a lock core fixed pin holes is arranged in the cylinder side axostylus axostyle, one lock core set pin (12) is arranged in this hole, one lock core shift fork (13) is arranged at the front end of lock core.

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