CN201386450Y - Bicycle head lock - Google Patents

Abstract

The utility model relates to a bicycle lock which comprises a lock body, a lock core, an inner core, a key, a lock shaft, a cylindrical fastener, a small spring, a small stopping block, a large spring and a positioning pin. The technical points of the bicycle lock are as follows: a lock groove is arranged on the lock shaft, and corresponds to the cylindrical fastener in a marble hole; a guiding gear and a guiding and positioning gear are arranged on the outer side of the lock core, which play positioning effect with the matching of the positioning pin; a sliding groove is arranged in a lock hole and used for leading the guiding gear and the guiding and positioning gear to slide therein in a leftward or rightward manner and leading the lock core to move in the lock hole in a leftward or rightward manner. The bicycle lock has the advantages of simple structure, low manufacturing cost and convenient use, and is applicable to various anti-theft devices of bicycles.

Description

The bicycle headstock lock

Technical field

The present invention relates to a kind of bicycle lock, refer in particular to the bicycle headstock lock that directly is fixed on the bicycle headstock.

Background technology

Present known bicycle lock has U-shape lock and is fixed on the old-fashioned common lock of back on the vehicle frame, and the U-shape lock defective is to carry inconvenience by bike the time, influences safety by bike, and old-fashioned common lock theftproof is poor, and the back key of unblanking is inserted in to be locked and can't take out, and uses inconvenience.

Summary of the invention

In order to overcome the existing above-mentioned defective of bicycle lock, the invention provides a kind of bicycle headstock lock, this bicycle headstock lock directly is fixedly mounted on the bicycle headstock, mix advanced at present anti-theft lock, key can take out behind the bicycle unlocking, need not draw out key when needing locking and just can directly pin headstock, open and close is very convenient.

The technical scheme that its technical problem that solves the utility model adopts is: the bicycle headstock lock comprises: lock body, lock core, inner core, key, lock shaft, cylinder buckle, little spring, little sprue, big spring, alignment pin.Lock shaft is provided with a locked groove, corresponding with the cylinder buckle in the pellet shot from a slingshot hole, there are a guiding tooth and a guide-localization tooth in the lock core outside, cooperate with alignment pin and to play the role of positioning, lockhole is established chute, horizontally slip in chute for guiding tooth, guide-localization tooth, make lock core move left and right in lockhole, but can not rotate.One locating hole is arranged on the lock body, in lock core is installed into lockhole after, alignment pin inserts in the lock body locating hole, when lock core behind the certain distance that moves right under the effect of big spring tension force, the guide-localization tooth pin that is positioned blocks, lock core can not be turned right moving again, plays the role of positioning.One locked groove vertical with the lock shaft direction arranged on the lock shaft, lock shaft hole inwall has a last pellet shot from a slingshot hole, after in little spring, the cylinder card spiral-lock hand-hole, block little spring with little sprue, after lock shaft is moved to the left certain distance, cylinder card is buckled in the locked groove that slips under the effect of little spring tension force on the lock shaft, and lock shaft is stuck can not move left and right, reaches the locking purpose.The lock body shell is a U type structure, and opening and closing the lock form is to drive lock core by external force to make its move left and right, and U type opening two end internal diameters equal the bicycle front fork outer shaft diameter.Two screw holes are established at U type opening two ends, and are corresponding with two screw holes of lock on the fixed block, and fixed block is directly fixing or be welded on the front fork outer shaft, and U-shape lock body and fixed block are just in time embraced the bicycle front fork outer shaft after fixing by two fixed screws.Axle respectively has a lockhole that size is identical with a side of outer shaft in the front fork, when axle in the front fork turn an angle and the front fork outer shaft on lockhole overlap, lock shaft can enter in two lockholes, outer shaft is blocked by lock shaft in making, and makes in the front fork axle can not do the direction rotation.

The invention has the beneficial effects as follows: by locked groove, settings such as big spring open and close flexibly lock.Lock body U-shaped structure theftproof is good, and when lock was in blocking, even the fixed screw of dismounting U-shaped lock body two ends, lock also can't take out.

Description of drawings

Fig. 1 is that bicycle headstock is locked each component stereogram

Fig. 2 is a bicycle headstock lock end perspective view

Fig. 3 is the bicycle headstock plan view

Fig. 4 is a bicycle headstock lock unlocking condition stereogram

Fig. 5 is a bicycle headstock locking lock state stereogram

1-cylinder buckle among the figure; The 2-little spring; The little sprue of 3-; 4-pellet shot from a slingshot hole; The 5-alignment pin; The 6-locating hole; The 7-big spring; The 8-locked groove; The 9-lock core; 10-guide-localization tooth; The 11-tooth that leads; 12-lock shaft hole; 13,23-screw hole; The 14-fixed block; The 15-chute; The 16-lockhole; The 17-inner core; The 18-key; Axle in the 19-front fork; The 20-lockhole; 21-front fork outer shaft; The 22-lock body; The 24-lock shaft.

The specific embodiment

Installation process, lock shaft 24 is inserted in big spring 7 in Fig. 1, guide-localization tooth 10 on the lock core 9, guiding tooth 11 are aimed in the lockhole 16 of packing into behind lockholes 16 chutes 15, alignment pin 5 inserts locating holes 6 and passes from guide-localization tooth 10, guiding tooth 11 centres on the lock core 9, guide-localization tooth 10 pin 5 that is positioned blocks under the effect of big spring 7 tension force, can not be toward moving right.After cylinder buckle 1, little spring 2 are packed in the pellet shot from a slingshot hole 4, block with little sprue 3 and to seal installation.

Use, in Fig. 4, lock core 9 is moved to the left under external force, and big spring 7 is compressed, and lock core 9 drives lock shaft 24 and is moved to the left together, after moving a certain distance, cylinder buckles 1 in the lock marble hole 4 slip in the locked groove 8 on the lock shaft 24, and lock shaft 24 is stuck, can not move left and right, lock shaft 24 also enters in the lockhole 20 after axle 19 outer shafts 21 overlap in the bicycle front fork simultaneously, and this moment, Fig. 5 was a blocking.

In Fig. 5, when the bicycle blocking, insertion key 18 rotational lock cores 9 of unblanking, lock core 9 drive lock shafts 24 and rotates together, and the rotation afterwards cylinder buckle 1 on the locked groove 8 skids off outside the locked groove 8, pellet shot from a slingshot buckle 1 is pressed in the pellet shot from a slingshot hole 4 by lock shaft, lock core 9 is repositioned to Fig. 4 position under the effect of big spring 7 tension force, after key 18 drives lock core 9 rotation returns, extract key 18, be unlocking condition.

Claims (3)

1, a kind of bicycle headstock lock, comprise: lock body (22), lock core (9), lock shaft (24), cylinder buckle (1), little spring (2), big spring (7), steady pin (5), fixed block (14), it is characterized in that: lock body (22) shell is U type structure, and open and close lock form is to drive lock core by external force to make its move left and right.

2, bicycle headstock lock according to claim 1, it is characterized in that U-shaped lock body (22) opening two ends internal diameter distance equals the diameter of bicycle front fork outer shaft (21), two screw holes (23) are established at U-shaped lock body (22) opening two ends, and are corresponding with two screw holes (13) on the fixed block (14).

3, bicycle headstock lock according to claim 1, it is characterized in that lock shaft (24) is provided with a locked groove (8), corresponding with the cylinder buckle (1) in pellet shot from a slingshot hole (4), guiding tooth (11) and guide-localization tooth (10) are established in lock core (9) outside, cooperate with alignment pin (5) and to play the role of positioning, lockhole (16) is established chute (15), horizontally slips in chute (15) for guide-localization tooth (10), guiding tooth (11).

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