CN2723308Y

CN2723308Y - Anti-theft device for motorcycle

Info

Publication number: CN2723308Y
Application number: CN 200420061106
Authority: CN
Inventors: 蒋富强
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-03
Filing date: 2004-09-03
Publication date: 2005-09-07
Anticipated expiration: 2014-09-03

Abstract

The utility model provides an anti-theft device for a motorcycle, comprising a lock pipe (2), a lock core (3), a lock guide holder (4), a brake disc (6) and a locking pawl (7). An annular channel and a guide channel are arranged on the lock guide holder (4), a flange is arranged at the outer wall of the lock pipe (2) which is arranged in the lock guide holder (4), the flange on the lock pipe (2) is fastened in the guide channel of the lock guide holder (4), and an arced slot hole is arranged on the lock pipe (2). The lock core (3) is arranged in the lock pipe (2), and the spacer pin of the lock core (3) passes through the arced slot hole of the lock pipe (2) and extends into the annular channel of the lock guide holder (4). The inner end of the lock pipe (2) is connected with the brake disc (6), the locking pawl (7) is arranged on the brake disc (6), and the locking pawl corresponds to the gullet position of the output sprocket wheel (10) of an engine. The utility model is integrally connected with the side cover of the motorcycle engine, and is not easy to be damaged by thieves. The anti-theft device for a motorcycle controls the transmission of the motorcycle by locking the output sprocket wheel of the motorcycle engine with better anti-theft effect.

Description

Anti-theft device for motorcycle

Technical field

The utility model belongs to technical field of motorcycles, relates in particular to a kind of anti-theft device for motorcycle.

Background technology

At present, stolen in order to prevent motor bike, people have designed various anti-theft device for motorcycle, wherein mainly contain Steering handle lock and decide device, electronic vibration warning device, source switch lock and front and back wheel locking device etc.They all have certain anti-theft effect separately, but also have certain defective.Wherein, Steering handle lock is decided device and front and back wheel locking device easily by outside destroy; Electronic vibration warning device sensitivity instability, sometimes Zhou Wei slight vibration also can make it send alarm sound, in the course of time, the car owner is benumbed; The circuitry lines of source switch lock is destroyed easily and lost efficacy.The installation of these several anti-joyride devices all is that relative motor bike is self-existent, be easy to be destroyed by the thief, can't influence the maneuvering performance of car load after the destroyed inefficacy of anti-joyride device, just can drive easily to escape after the car stealer is gone smoothly, thereby anti-theft effect be unsatisfactory.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of anti-theft device for motorcycle is provided, and it is destroyed easily to solve existing anti-theft device for motorcycle, the problem that just can drive to escape easily after the car stealer goes smoothly.

For this reason, anti-theft device for motorcycle described in the utility model comprises the driving engine output chain gear, key, the lock pipe, lock core, the lock guide holder, brake disc and retaining pawl, wherein lock the guide holder inwall and have two circular grooves and axial guide groove, outer wall is provided with axial flange, lock pipe outer wall is provided with axial flange, the lock pipe is contained in the lock guide holder, and the flange on it inserts in the guide groove of lock guide holder, have 180 ° of arc-shaped slots on the lock pipe, the two ends of arc-shaped slot link to each other with the guide groove of lock guide holder, outer wall of lock core radially is provided with locating dowel pin, lock core is contained in the lock pipe, the locating dowel pin of lock core passes the arc-shaped slot of lock pipe and stretches in the circular groove of lock guide holder, the inner of lock pipe links to each other with brake disc, brake disc is provided with retaining pawl, and retaining pawl is corresponding with the tooth slot position of driving engine output chain gear, and the distance between two circular grooves equates to the distance between the brake disc outer face with lock guide holder inner end surface.

Lock guide holder in the utility model is fixedly mounted on the motor cycle engine limit and covers, or is cast as with motor cycle engine limit lid and is one, and lock pipe, lock core and lock guide holder are coaxial with the driving engine output chain gear.The lock pipe can endwisely slip in the lock guide holder, but can not rotate; Lock core can rotate in the lock pipe, but can not endwisely slip.When this anti-joyride device was in locking state, retaining pawl was stuck in the teeth groove of driving engine output chain gear, and the locating dowel pin on the lock core is arranged in the centre of arc-shaped slot and is stuck in a circular groove of lock guide holder the inside.During release,, the locating dowel pin on the lock core is rotated at wraparound commentaries on classics center in the circular groove of the arc-shaped slot of locking pipe and lock guide holder by key rotation lock core; When the arc-shaped slot end of locating dowel pin half-twist arrival lock pipe entered in the guide holder guide groove, by key pulling lock core, lock core drive lock Guan Zaisuo guide holder is interior outwards to slide, and the locating dowel pin of lock core outwards slides in the guide groove of locking guide holder; Because the distance between two circular grooves equates to the distance between the brake disc outer face with lock guide holder inner end, when driving lock core, key pulls outward when motionless, 90 ° of counter-rotation keys, the locating dowel pin that makes lock core enters into a circular groove of the outside of lock conduit by the guide groove of lock guide holder, the moving axially of restriction lock core and lock pipe.The lock pipe is when outwards moving axially, and the pulling brake disc outwards moves axially the drive retaining pawl and is separated from the teeth groove of driving engine output chain gear, thereby finishes release, and is opposite with above-mentioned action during locking.This anti-joyride device is set to be integral with motor cycle engine limit lid, and the person destroys to be not easy the stolen car, and by the output chain gear of locking motor cycle engine, the transmission of control motor bike makes it and can't normally move, thereby reaches effective theft-proof purpose.

The beneficial effects of the utility model are: cover as one with the motor cycle engine limit, be hidden in driving engine Bian Gainei, output chain gear by the locking motor cycle engine, the transmission of control motor bike, be not easy to be destroyed, if suffer to destroy by force with sudden force the damage that can cause driving engine, add and disposed electric theft-proof system and make anti-theft effect better by the thief, and it is simple in structure, easy to install and use.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is structural representation of the present utility model (lock-out state fully);

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is arc-shaped slot 2b end that the locating dowel pin 3a of lock core 3 among the utility model embodiment arrives lock pipe 2 scheme drawing when entering among the guide groove 4c of lock guide holder 4;

Fig. 5 is a perspective exploded view of the present utility model.

The specific embodiment

As Fig. 1 to shown in Figure 5, the utility model by key 1, lock pipe 2, lock core 3, lock guide holder 4, contiguous block 5, brake disc 6, retaining pawl 7, internal tooth collar 8, external tooth card bridge 9, driving engine output chain gear 10, screw 11, stir six foot controls 12, counterbore screw 13, screw 15, compression spring 16, screw 18 and annunciator 19 and form.Lock guide holder 4 inwalls have two

circular groove

4a, 4b and axial guide groove 4c, outer wall is provided with axial axial ledge 4d, lock pipe 2 outer walls are provided with axial flange 2a, lock pipe 2 is contained in the lock guide holder 4, and the flange 2a on it is stuck among the guide groove 4c of lock guide holder 4, have 180 ° of arc-shaped slot 2b on the lock pipe 2, the two ends of arc-shaped slot 2b link to each other with the guide groove 4c of lock guide holder 4, lock core 3 outer walls radially are provided with locating dowel pin 3a, lock core 3 is contained in the lock pipe 2, the locating dowel pin 3a of lock core 3 passes the arc-shaped slot 2b of lock pipe 2 and stretches among the

circular groove

4a or 4b of lock guide holder 4, the inner of lock pipe 2 links to each other with brake disc 6, brake disc 6 is provided with retaining pawl 7, also can be with brake disc 6, retaining pawl 7 is made a single piece, retaining pawl 7 is corresponding with the tooth slot position of driving engine output chain gear 10, two circular groove 4a, distance between the 4b equates to the distance between brake disc 6 outer faces with lock guide holder 4 inner ends.

Can find out from Fig. 1, Fig. 2: the inner of lock core 3 is connected with internal tooth collar 8 by screw 11, is buckled together after the tooth 9a circumferencial direction dislocation on the tooth 8a of internal tooth collar 8 and the external tooth card bridge 9, and external tooth card bridge 9 is fixed on the driving engine output chain gear 10 by screw 18.In the retaining pawl on the brake disc 67 stretched into teeth groove on the driving engine output chain gear 10, when blocking driving engine output chain gear 10 and making it to rotate, further turn lock core 3 was buckled together the tooth 8a of internal tooth collar 8 and the tooth 9a circumferencial direction dislocation of external tooth card bridge 9.Like this, when whole anti-joyride device is subjected to outside destroy under open mode not, can prevent that lock pipe 2 and lock core 3 etc. from outwards coming off and antitheft inefficacy, thereby reach the effect of double insurance.

As can be seen from Figure 1: for ease of assembling, be provided with contiguous block 5 between lock pipe 2 and the brake disc 6, one end and the brake disc 6 of contiguous block 5 are affixed, also contiguous block 5 and brake disc 6 can be made a single piece, unthreaded hole 5a is arranged on the contiguous block 5, and counterbore screw 13 passes unthreaded hole 5a on the contiguous block 5 and will lock pipe 2 and link to each other with brake disc 6.

As can be seen from Figure 2: a side of brake disc 6 is provided with compression spring 16, and compression spring 16 is set on the screw 15, and screw 15 passes brake disc 6 and is fastened on the motor cycle engine limit lid 14.Make when any state, brake disc 6 is the elastic force of spring 16 and trend towards one side of driving engine limit lid 14 by compression all the time, only under the impetus of lock pipe 2, brake disc 6 just can overcome the elastic force of compression spring 16 and move to driving engine output chain gear 10 directions, thereby prevented that when released state (motoring condition) brake disc 6 from making retaining pawl 7 block teeth groove on the output chain gear 10 to the motion of driving engine output chain gear 10 directions, in order to the safety that guarantees to travel.

As can be seen from Figure 1: on the sidewall of brake disc 6, be provided with draw-in groove 6a, other being provided with of draw-in groove 6a stirred six foot controls 12, stir on the power lead and magnetic motor for motorcycle output line that six foot controls 12 are connected voice guard 19 simultaneously, the contact 12a that stirs six foot controls 12 is connected among the draw-in groove 6a.When brake disc 6 moves inwards, when retaining pawl 7 blocks teeth groove on the output chain gear 10 driving engine is in the lock state, draw-in groove 6a on brake disc 6 sidewalls drives the contact 12a that stirs six foot controls 12 simultaneously and pulls to the right, the mouth and the circuit between the motor cycle engine ignition system of magneto generator 17 are disconnected, and connect the power supply of voice guard 19 simultaneously, at this moment motor bike can't start by normal ignition, and because the retaining pawl 7 on the brake disc 6 blocks the teeth groove on the output chain gear 10, motor bike also can't be promoted, if destroy this device by force with external force, voice guard 19 will send sharp-pointed chimes of doom to drive the burglar because of strong motion, and anti-theft measure is thoughtful comprehensively.The electric control system of voice guard 19 part can be fixed on the driving engine limit lid 14, guarantees that it can not rock and influences the reliability of electric control system.

Principle of work: when this anti-joyride device is in locking state, retaining pawl 7 is stuck in the teeth groove of driving engine output chain gear 10, locating dowel pin 3a on the lock core 3 is arranged in the centre of arc-shaped slot 2b and is stuck in a circular groove 4b of lock guide holder 4 the insides, and the dislocation of the tooth 9a circumferencial direction on the tooth 8a of internal tooth collar 8 and the external tooth card bridge 9 is buckled together, the contact 12a that stirs six foot controls 12 pulls to the right, make the mouth of magneto generator 17 and the circuit between the motor cycle engine ignition system be in off-state, voice guard 19 is in on-state with power supply simultaneously.During release,, the locating dowel pin 3a of lock core 3 is rotated at wraparound commentaries on classics center in the circular groove 4b of arc-shaped slot 2b that locks pipe 2 and lock guide holder 4 by key 1 rotational lock core 3; When locating dowel pin 3a half-twist arrived the arc-shaped slot 2b end of lock pipe 2, lock core 3 drove internal tooth collar 8 and rotates, and makes the tooth 8a of internal tooth collar 8 and the tooth 9a on the external tooth card bridge 9 become disengaged position by buckling state; By key 1 pulling lock core 3, lock core 3 drives lock pipe 2 and outwards slides in lock guide holder 4 then, and the locating dowel pin 3a of lock core 3 outwards slides in the guide groove 4c of lock guide holder 4; Because the distance between two circular groove 4a, the 4b equates to the distance between brake disc 6 outer faces with lock guide holder 4 inner ends, when brake disc 6 moves to and locks guide holder 4 inner ends when contacting, the key 1 not movable lock core 3 that pulls outward, the locating dowel pin 3a of expression lock core 3 has arrived lock circular groove 4a place, guide holder 4 outsides; 90 ° of counter-rotation keys, make the locating dowel pin 3a of lock core 3 snap onto among the circular groove 4a of outside by the guide groove 4c that locks guide holder 4, moving axially of restriction lock core 3 and lock pipe 2, lock pipe 2 is when outwards moving axially, drive the teeth groove that retaining pawl 7 leaves driving engine output chain gear 10, thereby untie locking to driving engine output chain gear 10, simultaneously, draw-in groove 6a on brake disc 6 sidewalls drives the contact 12a that stirs six foot controls 12 and pulls to the left side, the mouth and the circuit between the motor cycle engine ignition system of magneto generator 17 are connected, and disconnect the power supply of voice guard 19 simultaneously, and motor bike reaches the state of complete release, and motor bike can begin normal use.Action is with above-mentioned opposite during locking.

Claims

1, a kind of anti-theft device for motorcycle, comprise driving engine output chain gear (10), it is characterized in that: further comprising has key (1), lock pipe (2), lock core (3), lock guide holder (4), brake disc (6) and retaining pawl (7), wherein lock guide holder (4) inwall and have two circular groove (4a, 4b) with axial guide groove (4c), outer wall is provided with axial flange (4d), lock pipe (2) outer wall is provided with axial flange (2a), lock pipe (2) is contained in the lock guide holder (4), and the flange on it (2a) inserts in the guide groove (4c) of lock guide holder (4), have 180 ° of arc-shaped slots (2b) on the lock pipe (2), the two ends of arc-shaped slot (2b) link to each other with the guide groove (4c) of lock guide holder (4), lock core (3) outer wall radially is provided with locating dowel pin (3a), lock core (3) is contained in the lock pipe (2), the locating dowel pin (3a) of lock core (3) pass the arc-shaped slot (2b) of lock pipe (2) and stretch into the circular groove (4a) of lock guide holder (4) or (4b) in, the inner of lock pipe (2) links to each other with brake disc (6), brake disc (6) is provided with retaining pawl (7), retaining pawl (7) is corresponding with the tooth slot position of driving engine output chain gear (10), two circular groove (4a, distance 4b) equates to the distance between brake disc (6) outer face with lock guide holder (4) inner end surface.

2, anti-theft device for motorcycle according to claim 1, it is characterized in that: the inner of described lock core (3) is connected with internal tooth collar (8) by screw (11), driving engine output chain gear (10) is gone up and is connected with external tooth Ka Qiao (9) by screw (18), and tooth (9a) the circumferencial direction dislocation on the tooth (8a) of internal tooth collar (8) and the external tooth Ka Qiao (9) is buckled together.

3, anti-theft device for motorcycle according to claim 1, it is characterized in that: be provided with contiguous block (5) between described lock pipe (2) and the brake disc (6), one end of contiguous block (5) and brake disc (6) are affixed, unthreaded hole (5a) is arranged on the contiguous block (5), and counterbore screw (13) passes unthreaded hole (5a) on the contiguous block (5) and will lock pipe (2) and link to each other with brake disc (6).

4, anti-theft device for motorcycle according to claim 1, it is characterized in that: a side of described brake disc (6) is provided with compression spring (16), compression spring (16) is set on the screw (15), and screw (15) passes brake disc (6) and is fastened on the driving engine limit lid (14).

5, according to claim 1 or 2 or 3 or 4 described anti-theft device for motorcycle, it is characterized in that: on the sidewall of brake disc (6), be provided with draw-in groove (6a), other being provided with of draw-in groove (6a) stirred six foot controls (12), stir on the power lead and magnetic motor for motorcycle (17) output line that six foot controls (12) are connected voice guard (19) simultaneously, the contact (12a) of stirring six foot controls (12) is connected in the draw-in groove (6a).