CN2480499Y - Theft-proof lock for motorcycle - Google Patents

Abstract

A theftproof lock of a motorcycle belongs to a special lock of motorcycles comprising a lock body 6, a pair of springs 5 and spring bolts 8, 18 which are arranged in the lock body 6, a push-rod 10 which is arranged on the spring bolt 8, a spring spindle 9 which is arranged on the push-rod 10, a pair of flutes 11, 16 which are arranged on the spring bolts 8, 18, a locked loop 1 which is inserted into the lock body 6 and locked or unlocked by the spring bolts 8, 18, a tapered end 12 which is arranged in the lock body 6, a lock cylinder 14 is arranged on the tapered end 12, a lock cylinder pin 15 which is arranged on the lock cylinder 14 and corresponding with the flutes 11, 16. The shape of the lock cylinder pin 15 which has two is cylindrical. The utility model has the advantages that the motorcycle theftproof lock can take up slack between the lock cylinder pin 15 and the flutes 11, 16 under lock and be theftproof.

Description

Anti-theft lock for motorcycle

The utility model relates to a kind of anti-theft lock for motorcycle, belongs to the special lockset on the motorcycle.

Existing anti-theft lock for motorcycle though can play certain antitheft effect, has in use also exposed the problem that causes influencing anti-theft effect because of its structural defective.Show that mainly the lock core foot on the lock core is the strip projection, the diameter of its length and lock core is isometric, and lock core foot be with dead bolt on groove corresponding, when twisting lock core with key, in the lock core rotation, drive the iron core pin, stir dead bolt by lock core foot by the groove on the dead bolt, make dead bolt overcome the active force of push rod spring and throw off, reach unlatching with the lock tongue slot on the locking ring.Can know thus, the event trace of lock core foot also equates with the event trace of lock core, and the length of the groove on the dead bolt also must satisfy the event trace of lock core foot, that is to say that the length of the groove on the dead bolt also must equate with the event trace of lock core foot.Therefore, be under the lock-out state at locking ring and dead bolt, just exist a bigger gap between the groove on the dead bolt and the thickness of lock core foot all the time, because the existence in this gap, when lock body is subjected to external impacts, vibration down, dead bolt can overcome the active force of push rod spring automatically and inside retraction makes dead bolt throw off from the lock tongue slot of locking ring, whole lockset just is opening, so do not have desirable anti-theft effect.

The purpose of this utility model is that the anti-theft lock for motorcycle gap, anti-theft effect Yu is not provided between the groove that will provide on a kind of lock core foot and the dead bolt.

The purpose of this utility model reaches like this, a kind of anti-theft lock for motorcycle, comprise lock body 6, place a pair of spring 5 and a pair of dead bolt 8 in the lock body 6,18, place the push rod 10 on the dead bolt 8, be placed on the push rod spring 9 on the push rod 10, be opened in dead bolt 8 respectively, a pair of groove 11 on 18,16, be inserted on the lock body 6 and can be by a pair of dead bolt 8,18 locking rings 1 to its locking/disengagement, place the tapered end 12 in the lock body 6, be positioned at the lock core 14 on the tapered end 12, be arranged on the lock core 14 with groove 11,16 corresponding lock core foots 15, described lock core foot 15 has a pair of, and its shape is column.

The utility model is changed into a pair of projection that is column owing to will be the lock core foot 15 of strip projection originally, thereby can eliminate lock core foot 15 under lock-out state and the gap between the groove 11,16, so can not cause dead bolt 8,18 because of the effect that lock body 6 is subjected to external force throws off from the lock tongue slot of locking ring 1, therefore, has good anti-theft effect.

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

Accompanying drawing is the utility model structure chart.

The shape of a pair of lock core foot 15 of the present utility model is cylindric, and its one on lock core 14 processes.Certainly, the shape of a pair of lock core foot 15 can also be semi-cylindrical or analogous shapes such as quadrangular, six prisms, the scope of overall technological scheme of the present utility model but this still dissociates.

Two ends of lock body 6 of the present utility model offer pair of locking annular distance 4,22 and a pair of dead bolt hole 3,21 respectively, the middle part then offers tapered end hole 20, a pair of spring 5 places the bottom of pair of locking annular distance 4, a pair of dead bolt 8,18 places respectively in a pair of dead bolt hole 3, push rod 10 places in the jogger hole on the dead bolt 8, push rod spring 9 is placed on the push rod 10, a pair of groove 11,16 is opened in an end of a pair of dead bolt 8,18, the other end of dead bolt 8,18 respectively has a breach 7,17, and breach 7,17 matches with the lock tongue slot 2 of locking ring 1 two end ends respectively.Tapered end 12 places in the tapered end hole 20, is provided with location pit 13 on tapered end 12, in tapered end 12 places tapered end hole 20 after, revolve and locate pit 13 with dog screw 19, thereby tapered end 12 is fixedly arranged in the lock body 6.Lock core 14 is hubbed on the tapered end 12, and a pair of lock core foot 15 processes in an end end one of lock core 14, and a pair of lock core foot 15 is corresponding with a pair of groove 11,16.

The utility model moves like this, when locking in this way, lower end aligned lock core annular distance 4 reinforcings of lock core ring 1 are pressed downwards, at first, a pair of dead bolt 8,18 active forces that overcome push rod spring 9 automatically because of the insertion force that is subjected to locking ring 1 lower end produce retraction, and be inserted to the lower end of locking annular distance 4 once the lower end of locking ring 1 after, a pair of lock tongue slot 2 on the locking ring 1 is just just in time corresponding to a pair of dead bolt 8,18 breach 7,17 places, meanwhile, because the effect of the restoring force of push rod spring 9, make a pair of dead bolt 8,18 two ends are fastened with a bolt or latch simultaneously and are placed in the lock tongue slot 2 and lock, as long as extract key this moment; In the time of will opening in this way, then key is inserted lock core 14 and twist certain angle, because a pair of lock core foot 15 on the lock core 14 is corresponding to groove 11,16, so along with locking 14 rotation, lock core foot 15 also rotates simultaneously, in rotation process and under the elastic force that overcomes push rod spring 9 a pair of dead bolt 8,18 is being drawn over to one's side in lock body 6, throw off from lock tongue slot 2 until the end that makes them, promptly eject locking ring 1 this moment under the effect of a pair of spring 5, thereby realize opening.

Claims (2)

1, a kind of anti-theft lock for motorcycle, comprise lock body (6), place a pair of spring (5) and a pair of dead bolt (8) in the lock body (6), (18), place the push rod (10) on the dead bolt (8), be placed on the push rod spring (9) on the push rod (10), be opened in dead bolt (8) respectively, (18) a pair of groove (11) on, (16), be inserted in that lock body (6) is gone up and can be by a pair of dead bolt (8), (18) to the locking ring (1) of its locking/disengagement, place the tapered end (12) in the lock body (6), be positioned at the lock core (14) on the tapered end (12), be arranged on the lock core (14) with groove (11), (16) corresponding lock core foot (15), it is a pair of to it is characterized in that described lock core foot (15) has, and its shape is column.

2, anti-theft lock for motorcycle according to claim 1 is characterized in that the shape of a pair of lock core foot (15) is cylindric.