CN201221250Y

CN201221250Y - Antitheft lock for bicycle

Info

Publication number: CN201221250Y
Application number: CNU2008201143638U
Authority: CN
Inventors: 董殿起
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-12
Filing date: 2008-05-12
Publication date: 2009-04-15
Anticipated expiration: 2018-05-12

Abstract

The utility model discloses an anti-theft lock of a bicycle, which comprises a cylindrical lock and a lock core arranged in the lock and matched with a key; the front end of the lock core is provided with a section of inward rotary groove; the lock is provided with a bolt corresponding to the rotary groove; the lock and the lock core are provided with more than two corresponding billiard holes; the lock core extends outwards along the rotary groove through the rotation of the key. The lock is arranged in a stand pipe of a bicycle handle, and the direction of the bicycle is controlled through the extension out of the lock core and the locking of a bicycle head tube. The anti-theft lock is hidden in the stand pipe of the bicycle handle, is not easy to be damaged, is characterized by direction control, safety and reliability, convenient installation, applicability to many models, no easy damage and low cost, and has good economic benefit and social benefit.

Description

A kind of anti-theft lock for bicycle

Technical field

The utility model relates to a kind of theftproof lock, specifically be a kind of be used on the bicycle can controlling party to theftproof lock.

Background technology

At present, people's bicycle used in everyday, Moped Scooter are stolen often, are starved of technically to address the above problem.Bicycle lock mainly is divided into two kinds on the present market: first kind is the fork lock, is fixed on the front fork and back vent of car, pitches closure locking wheel afterwards by lock and lock; Second kind is chain lock, is steel wire and Steel chain lock, comes the locking wheel by the closure of chain.These two kinds of locks itself are exposed to the outside, and the thief can be easy to disconnect lock fork and chain enforcement theft by external force.Some are locked on the precision and are improved, certainly the precision height cost also just high; Some are improved on firmness, and mainly being increases material usage, and lock seems thicker, gives some sense of security of people, but does not avoid the defective that exposes jointly.

The utility model content

The purpose of this utility model provide a kind of and bicycle handle bar's hand standpipe combine together, have controlling party to, safe and reliable, easy for installation, be suitable for the anti-theft lock for bicycle that vehicle is extensive, survivable and cost is low.

For achieving the above object, the technical solution adopted in the utility model is: a kind of anti-theft lock for bicycle, include lock cylinder, be installed in the lock core that cooperates with key in the lock body, described lock core front end has the swivelling chute of one section indent, described lock body is provided with a latch corresponding with swivelling chute, and described lock body and lock core are provided with corresponding plural pellet shot from a slingshot hole.

Preferably, described surface of lock body has a semi-circular grooves around pellet shot from a slingshot hole circle Zhou Fangxiang, and described groove is provided with a semicircular steel wires spring.

Preferably, described lock body rear end processes a threaded hole, described hole be provided with one with the degree of depth of hole and the screw that screw thread is complementary.

Preferably, described lock core makes lock core protruding along swivelling chute by the rotation of key.

Preferably, described lock body is provided with a lock body guard circle.

After adopting technique scheme, be installed with in handlebar stem by lock body, lock core stretches out the direction that is positioned at locking bicycle on the head tube, thereby effectively plays antitheft effect, has good economic benefit and social benefit.

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram;

Fig. 2 is that the utility model overall structure A is to structural representation;

Fig. 3 is the utility model opening structural representation;

Fig. 4 is the utility model lockup state structural representation.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, the utility model discloses a kind of anti-theft lock for bicycle, include lock cylinder 1, be installed in the lock core 2 that cooperates with key in this lock body, described lock core front end has the swivelling chute 3 of one section indent, and described lock body is provided with a latch 4 corresponding with swivelling chute, makes lock core along the swivelling chute 3 protruding effects of playing locking by key turns, described lock body and lock core are provided with corresponding plural pellet shot from a slingshot hole 12, and this pellet shot from a slingshot hole 12 is used to place pellet shot from a slingshot 13.

As shown in Figure 1 and Figure 2, described lock body 1 surface has a semi-circular grooves around pellet shot from a slingshot hole 12 circumferencial directions, and described groove is provided with a semicircular steel wires spring 14, and this semicircular steel wires spring is used to control the activity of pellet shot from a slingshot.Described lock body is provided with a lock body guard circle 15, and this guard circle is used for fixing wire spring 14 and latch 4 on lock body.

Described lock body 1 rear end processes a threaded hole 5, described hole be provided with one with the degree of depth of hole and the screw 6 that screw thread is complementary.Be installed with in bicycle handle bar's hand standpipe by this key screw lock body.

Specific implementation method, as Fig. 3, shown in Figure 4, on the head tube 8 that is installed with bicycle handle bar's hand standpipe 7, have the locking hole 9 of the ccontaining lock body of an energy, the rotation handlebar makes bicycle directional become 90 ° with vehicle body, on handlebar stem 7 open a through hole via the locking hole on the head tube 9 this moment, one end of this through hole is the lock body opening 10 of the ccontaining lock body of energy, the other end is the screw hole 11 that can hold screw 6, lock body is placed in the handlebar stem 7 by lock body opening 10, the outer wall of the front end of lock body and handlebar stem 7 at grade, the rear end of lock body is at the inwall of handlebar stem 7, the screw hole 5 of lock body rear end and screw hole 11 correspondences on the handlebar stem are fixed from the lock body in handlebar stem 7 outer walls and the handlebar stem by screw 6 again.The rotation handlebar makes bicycle directional become 90 ° with vehicle body behind good this lock body of device, can see lock core 2 on the locking hole from the head tube 8 this moment, make lock core 2 protruding by key turns, this moment, lock core 2 played the locking effect with head tube 8, had reached the purpose of control car direction by this latch functions.The thief that can only turn-take in the original place can't ride away this car because bicycle directional becomes 90 ° of direction bicycles of having controlled car with vehicle body, has effectively played antitheft effect.

In sum, the utility model is simple in structure, is installed with in handlebar stem lock core by lock body Stretch out the direction that is positioned at locking bicycle on the head tube, thereby effectively play antitheft effect, Because the utility model is hidden in the handlebar stem, lock is difficult for destroyed, so this practicality is new Type have controlling party to, safe and reliable, easy for installation, be suitable for vehicle extensive, survivable with become The characteristics that this is low have good economic benefit and social benefit.

Claims

1. anti-theft lock for bicycle, include lock cylinder, be installed in the lock core that cooperates with key in the lock body, it is characterized in that, described lock core front end has the swivelling chute of one section indent, described lock body is provided with a latch corresponding with swivelling chute, and described lock body and lock core are provided with corresponding plural pellet shot from a slingshot hole.

2. anti-theft lock for bicycle according to claim 1 is characterized in that, described surface of lock body has a semi-circular grooves around pellet shot from a slingshot hole circle Zhou Fangxiang, and described groove is provided with a semicircular steel wires spring.

3. anti-theft lock for bicycle according to claim 1 is characterized in that, described lock body rear end processes a threaded hole, described hole be provided with one with the degree of depth of hole and the screw that screw thread is complementary.

4. anti-theft lock for bicycle according to claim 1 is characterized in that, described lock core makes lock core protruding along swivelling chute by the rotation of key.

5. anti-theft lock for bicycle according to claim 1 is characterized in that, described lock body is provided with a lock body guard circle.