CN100541696C - Anti-theft lock for motorcycle - Google Patents

Abstract

The present invention relates to a kind of anti-theft lock for motorcycle, comprise lock body, lock core, drive link, decide contact and moving contact.Mainly be to be provided with anti-theft ring between lock body and lock core, the cylindrical of described anti-theft ring cooperates with the lock body endoporus is movable, and endoporus cooperates with lock core is movable; The anti-theft ring endoporus of pellet shot from a slingshot corresponding position is shaped on spring groove on lock core; Be provided with between anti-theft ring and the lock body and prevent both counterrotating positioners; Be provided with control switch between anti-theft ring and lock body, this control switch is connected in series in by lead to be decided in the contact circuit.When picklock by force during rotary locking cylinder, to drive the anti-theft ring rotation, and press control switch with its normally closed interlock disconnection, make motorcycle ignition circuit be in off-state, guarantee that motorcycle can not ignition trigger, have advantages such as pick-proof, theftproof performance are good, be applicable to the antitheft starting switch lock of various motorcycles.

Description

Anti-theft lock for motorcycle

Technical field

The present invention relates to a kind of lockset, start lock about a kind of motorcycle electric ignition specifically.The present invention is applicable to the electric firing lock of motorcycle.

Background technology

Existing lock for motorcycle, generally by lock body, lock core, drive link, decide contact and moving contact is formed, lock core is installed in the lock body endoporus, on lock core, be provided with some pellets shot from a slingshot, the lock body endoporus of pellet shot from a slingshot outside is provided with spring groove, and an end of drive link is connected with the lock core end, and the other end connects moving contact.When key inserted lock core, the end of all pellets shot from a slingshot was reduced in the lock core, and lock core can be rotated in lock body, and when forwarding set angle to, moving contact overlaps with deciding contact, will decide contact and connect, and motorcycle ignition is started; When key did not insert lock core, pellet shot from a slingshot protruded the lock core outside and embeds in the lock body draw-in groove under spring action, lock core can not be rotated in lock body, prevented that motorcycle is by the unlatching of the instrument beyond this car configuration key.But, the lock for motorcycle of existing structure, when picklock reversed lock core by force, its pellet shot from a slingshot was easy to be twisted off under torsional interaction, and motorcycle ignition is started, and theftproof performance is poor, causes motorcycle stolen repeatedly.

Summary of the invention

The objective of the invention is the shortcoming that exists at prior art, a kind of pick-proof, anti-theft lock for motorcycle that theftproof performance is good are provided.

The technical scheme that realizes the object of the invention comprises lock body, lock core, drive link, decides contact and moving contact, lock core is installed in the lock body endoporus, on lock core, be provided with some pellets shot from a slingshot, the lock core end connects drive link, the fixedly connected moving contact of this drive link tail end, described moving contact with decide contact mounting disc Elastic Contact.Mainly be to be provided with anti-theft ring between lock body and lock core, the cylindrical of this anti-theft ring cooperates with the lock body endoporus is movable, and the endoporus of anti-theft ring cooperates with lock core is movable; The endoporus of the anti-theft ring of pellet shot from a slingshot corresponding position is shaped on spring groove on lock core; Be provided with between anti-theft ring and the lock body and prevent both counterrotating positioners; Be provided with control switch between anti-theft ring and lock body, this control switch is connected in series in by lead to be decided in the contact circuit;

Positioner between described anti-theft ring and the lock body is made up of retainer spring and location pellet shot from a slingshot, and retainer spring is installed in the lock body location hole, and the location pellet shot from a slingshot is installed in the shrinkage pool of anti-theft ring outer wall, and retainer spring compresses installation with the location pellet shot from a slingshot;

Described control switch is a normally closed interlock switch, is installed between the groove of lock body inner hole wall and anti-theft ring.

The present invention's beneficial effect compared with prior art is: be provided with anti-theft ring between lock body and lock core, when normal key inserts lock core, the end of all pellets shot from a slingshot is reduced in the lock core in the lock core, lock core can be rotated, the same normal startup motorcycle with prior art in anti-theft ring; When picklock (as screwdriver) inserts lock core, the end of pellet shot from a slingshot embeds in the spring groove of anti-theft ring endoporus in the lock core, stop lock core to rotate with picklock, along with the increase of picklock to the lock core moment of torsion, the retainer spring of positioner is subjected to the torsional forces effect and compresses, the location pellet shot from a slingshot skids off in the shrinkage pool of anti-theft ring outer wall, enter in the lock body location hole, make anti-theft ring follow the lock core rotation, after the anti-theft ring rotation, control switch leaves the groove location of anti-theft ring, and the outer wall bruising of anti-theft ring disconnects normally closed control switch to control switch, at this moment, even lock core rotates to moving contact and overlaps the position with deciding contact, owing to be connected in series in the control switch of deciding in the contact circuit and disconnect, the motorcycle ignition circuit ignition trigger of also can't switching on.And the elastic force by appropriate design positioner retainer spring, can guarantee can not damage in the picking lock process pellet shot from a slingshot in the lock core, the picking lock process can be recovered normal condition after finishing, and its pick-proof, theftproof performance are good.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the structure cutaway view of A-A direction among Fig. 1 of the present invention.

Embodiment

Anti-theft lock for motorcycle as shown in Figure 1, structure comprises lock body 1, lock core 2, drive link 3, decides contact 4 and moving contact 5, lock core 2 is installed in lock body 1 endoporus, be provided with some pellets shot from a slingshot 6 on lock core 2, when key 12 inserted lock core 2, the end of pellet shot from a slingshot 6 was reduced in the lock core 2, lock core 2 ends connect drive link 3, the fixedly connected moving contact 5 of these drive link 3 tail ends, this moving contact 5 and the mounting disc Elastic Contact of deciding contact 4 are decided the mounting disc of contact 4 and are adopted insulating material.Between lock body 1 and lock core 2, be provided with anti-theft ring 7, the cylindrical of described anti-theft ring 7 cooperates with lock body 1 endoporus is movable, the endoporus of anti-theft ring 7 and 2 movable cooperations of lock core, anti-theft ring 7 endoporus in the outside, the corresponding position of pellet shot from a slingshot 6 are shaped on spring groove 8 in lock core 2, as shown in Figure 2, when key 12 was extracted lock core 2, an end of pellet shot from a slingshot 6 entered in the spring groove 8 of anti-theft ring 7 endoporus under spring 9 effects, and lock core 2 can not be rotated relatively with anti-theft ring 7.As shown in Figure 1, be provided with between anti-theft ring 7 and the lock body 1 and prevent both counterrotating positioners, this positioner is made up of retainer spring 10 and location pellet shot from a slingshot 11, retainer spring 10 is installed in the location hole of lock body 1 inwall, be shaped on shrinkage pool on the anti-theft ring below the location hole of lock body 1 inwall 7, location pellet shot from a slingshot 11 is flush-mounted in the shrinkage pool of anti-theft ring 7 outer walls, and retainer spring 10 compresses location pellet shot from a slingshot 11, when preventing that key 12 from injecting lock core 2 rotations, drive anti-theft ring 7 and lock body 1 relative rotation.The degree of depth of this shrinkage pool is less than the radius of sphericity of location pellet shot from a slingshot 11, elastic force by appropriate design retainer spring 10, reverse when picklock under the situation of lock core 2, in pellet shot from a slingshot 6 holding capacity, retainer spring 10 is compressed, and location pellet shot from a slingshot 11 is skidded off in the shrinkage pool of anti-theft ring 7 outer walls, enters in the location hole of lock body 1 inwall, anti-theft ring 7 can be rotated relatively with lock body 1, prevent that picklock torsion from damaging lock core 2 and pellet shot from a slingshot 6.Between anti-theft ring 7 and lock body 1, be provided with control switch 13, this control switch 13 is connected in series in by lead 14 to be decided in contact 4 circuit, described control switch 13 is a normally closed interlock switch, be installed between the groove of lock body 1 inner hole wall and anti-theft ring 7, the groove of described anti-theft ring 7 can be at its end system one breach, control switch 13 is installed on this indentation, there, also can with centre position system one shrinkage pool of lock body 1 mating surface, control switch 13 is installed on lock body 1 bore area at this shrinkage pool place, can bruising arrive control switch 13 when anti-theft ring 7 is rotated, its normally closed interlock is disconnected.Lead 14 is two, connects two contacts of control switch 13 normally closed interlocks respectively, and is connected by the guide hole 15 in the lock body 1 and decides in contact 4 circuit.

Drive link 3 middle parts have the structure of arching, and its position of arching cooperates transmission with head lock mechanism, and this is a prior art, no longer is described in detail at this.

Operation principle: when key 12 inserts lock core 2, the end of pellet shot from a slingshot 6 is reduced in the lock core 2, concordant with lock core 2 outer surfaces, key 12, lock core 2, drive link 3, moving contact 5 rotate thereupon, when forwarding desired location to, moving contact 5 with decide contact 4 and overlap, to decide contact 4 and connect, motorcycle energising ignition trigger.When picklock (as screwdriver) inserted lock core 2, the end of pellet shot from a slingshot 6 embedded in the spring groove 8 of anti-theft ring 7 endoporus in the lock core 2, stoped lock core 2 to rotate with picklock.Along with the increase of picklock to lock core 2 moments of torsion, the retainer spring 10 of positioner is subjected to the torsional forces effect and compresses, location pellet shot from a slingshot 11 skids off in the shrinkage pool of anti-theft ring 7 outer walls, enter in lock body 1 location hole, make anti-theft ring 7 follow lock core 2 rotations, after anti-theft ring 7 rotations, control switch 13 leaves the groove location of anti-theft ring 7, the outer wall bruising of anti-theft ring 7 disconnects normally closed control switch 13, at this moment to control switch 13, even lock core 2 rotates to moving contact 5 and decides contact 4 and overlap the position, owing to be connected in series in the control switch of deciding in contact 4 circuits 13 and disconnected, the motorcycle ignition circuit ignition trigger of also can't switching on prevents that motorcycle is stolen; When lock core 2 is rotated to original position, the shrinkage pool of anti-theft ring 7 outer walls is in the below in lock body 1 location hole, and location pellet shot from a slingshot 11 embeds in the shrinkage pool of anti-theft ring 7 outer walls, and control switch 13 is in the groove location of anti-theft ring 7, its normally closed interlock closure is recovered normal condition.

Claims (1)

1, a kind of anti-theft lock for motorcycle, comprise lock body (1), lock core (2), drive link (3), decide contact (4) and moving contact (5), lock core (2) is installed in lock body (1) endoporus, on lock core (2), be provided with some pellets shot from a slingshot (6), lock core (2) end connects drive link (3), the fixedly connected moving contact of this drive link (3) tail end (5), described moving contact (5) with decide contact (4) mounting disc Elastic Contact, it is characterized in that between lock body (1) and lock core (2), being provided with anti-theft ring (7), the outer round surface of this anti-theft ring (7) cooperates with lock body (1) endoporus is movable, and the endoporus of anti-theft ring (7) cooperates with lock core (2) is movable; The endoporus of going up the anti-theft ring (7) of pellet shot from a slingshot (6) corresponding position at lock core (2) is shaped on spring groove (8); Be provided with positioner and control switch (13) between anti-theft ring (7) and the lock body (1); Described control switch (13) is a normally closed interlock switch, is installed between the groove of lock body (1) inner hole wall and anti-theft ring (7), and is connected in series in by lead (14) and decides in contact (4) circuit; Described positioner is made up of retainer spring (10) and location pellet shot from a slingshot (11), and retainer spring (10) is installed in the lock body location hole, and location pellet shot from a slingshot (11) is installed in the shrinkage pool of anti-theft ring (7) outer wall, and retainer spring (10) compresses location pellet shot from a slingshot (11).

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