CN2272390Y - Automatic alarm thief-proof lock for vehicle - Google Patents

Abstract

The utility model relates to an automatic alarm thief-proof lock for vehicles, which is composed of a lock casing body 6, a lock core 5, and a U-shaped lock fork 7, wherein, an alarm switch circuit 2 is arranged in the lock casing body, and the output terminal of the circuit is connected with a normally open contact 10 and an alarm whistle 11; a triggering conducting wire 30 is arranged in the U-shaped lock fork; the external of the lock casing body is provided with a flexible locking wire 18, and a triggering conducting wire 22 is arranged in the locking wire. The base terminal of a transistor is connected with a break-circuit alarm circuit which is composed of sockets 14 and 15, and the collector terminal of the transistor is connected with a short-circuit alarm circuit which is composed of short-circuit sheets 12 and 13. The automatic alarm thief-proof lock for vehicle can prevent thieves from stealing vehicles by prying locks and stealing vehicles without prying locks.

Description

Vehicle automatic alarm anti-theft lock

The utility model relates to a kind of vehicle automatic alarm anti-theft lock, and this lock is equipped with electronic alarm device.

Stolen in order to prevent bicycle motorcycle, mode commonly used is to add mechanical lock onboard, and common mechanical lock is stolen car after unavoidable stolen molecule destroys owing to there is not warning device, and the thief that has is directly stolen car with lock without picking lock.Therefore, need a kind of anti-theft column lock capable of automatic alarm.

The purpose of this utility model is to provide a kind of vehicle automatic alarm anti-theft lock, and is capable of automatic alarm when this lock suffers artificial destruction, capable of automatic alarm when bigger displacement takes place.

The purpose of this utility model is achieved in that a kind of vehicle automatic alarm anti-theft lock, by the lock housing body, lock core and U-shaped lock fork are formed, in its lock housing body alarm switch circuit is housed, the mouth of this circuit is connected to normally open contact and siren, the transistor collector end serial connection relay coil of this circuit, collecting electrode self-sustaining normally open contact in parallel with emitter terminal, in the described U-shaped lock fork triggering lead is housed, lock housing is external to be equipped with flexible locking wire, this locking wire contains the triggering lead, the transistor base termination has the breaking alarming circuit that is made of socket, and the transistor collector termination has the short-circuit alarming circuit that is made of short-circuit piece.When using the utility model, the U-shape lock fork is inserted in the lock housing body by wheel, again locking wire is walked around or is passed fixture (trees, electric pole, iron bar etc.) in the socket on the insertion lock housing body, lock after the car, it is on the alert that this alarm lock just is in warning, at this moment, destroy the lock housing body with saw blade, or U-shaped lock fork, the triggering lead in it will be cut off, when the cut while, this lead is communicated with power cathode by metallic decoration wire, through short board the transistor collector end is communicated with power cathode, relay coil work, this is locked auto alarm, with the fixing screw on the loosening tool lock housing body or disclose and dial loud-speaker opening, also the transistor collector end can be communicated with power cathode, make relay coil work, this is locked auto alarm.Cut off or extract flexible locking wire plug from the lock housing body, will cause the transistor base terminal potential to raise, this moment, transistor collector and emitter conducting made relay coil work, and this is locked auto alarm

Compared with the prior art the utility model has the advantage of avoid theft crime of molecule picking lock and the direct trailer crime without picking lock.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1, electrical schematic diagram of the present utility model

Fig. 2, triggering metal gauze scheme drawing of the present utility model (the B-B cutaway view of Fig. 4)

Fig. 3, flexible locking wire scheme drawing of the present utility model

Fig. 4, outside drawing of the present utility model

Fig. 5, constructional drawing of the present utility model (A of Fig. 4 is to view)

The inwall diagram of wiring of Fig. 6, the utility model housing

Referring to accompanying drawing 1, vehicle automatic alarm anti-theft lock of the present utility model is by lock housing body 6, lock core 5 and U-shaped lock fork 7 are formed, alarm switch circuit 2 is housed in the lock housing body, the mouth of this circuit is connected to normally open contact 10 and siren 11, the collector terminal serial connection relay coil 8 of the transistor T of this circuit, be parallel with diode T2 with relay coil, collecting electrode self-sustaining normally open contact 9 in parallel with emitter terminal, transistorized base terminal is connected to biasing resistor R, be equipped with in the described U-shaped lock fork and trigger lead 30, lock housing is external to be equipped with flexible locking wire 18, this locking wire contains and triggers lead 22, the transistor base termination has by socket 14, the 15 breaking alarming circuit that constitute, the transistor collector termination has by short-circuit piece 12, the 13 short-circuit alarming circuit that constitute.Lock core is electrically connected with transistor emitter end D and lock housing body, (referring to Fig. 5), switch spring sheet P is being fixed in insulation on lock core, this sheet is electrically connected with power cathode, and when the dead bolt in the lock core 4 stretches out, the switch spring sheet will be in contact with it, power supply and alarm switch circuit are connected, when dead bolt is return lock core, the switch spring sheet will disengage with it, and power supply and alarm switch circuit are disconnected.One end of lock housing body is equipped with lock fork tube 31, and this tube is fixing with lock case lid 24, and this middle part has a breach, inserts into the inner for dead bolt, and lock housing body inwall is over against the stationkeeping short-circuit piece 13 of lock fork tube, and this short-circuit piece is by insolator disc 25 and the insulation of lock housing body.The lock case lid is fixed by fixing screw 23 and lock housing body, for preventing dismounting lock case lid, the elasticity short-circuit piece can be set at the fixing screw place, its structure is seen Fig. 1 (structure shown in Figure 1 is the C-C cutaway view of Fig. 4), elasticity short-circuit piece 12 is connected with the lock housing body by thin rubber ring 27, the contact surface of elasticity short-circuit piece and fixing screw is provided with insulating barrier, and this short-circuit piece 12 and short-circuit piece 13 are electrically connected with the C point of transistor collector end.U-shaped lock fork is to be made by metal tube, and the triggering lead in it is a multiple enamel wire of turning back, and the termination of this lock fork is a metal contact 28, this contact and metal tube insulation, fixing with epoxy resin 29, the end of this lock fork one end has a breach, inserts into the inner for dead bolt.For preventing to destroy the lock housing body with saw, cementation triggers lead (26) on the wall within it, triggers lead and can implement by the mode of three-dimensional wiring shown in Figure 6, and other embodiment also can be arranged, and this triggers lead and is electrically connected with transistor collector end C point.Dial loud-speaker opening 20 for having prevented that the human instrument from disclosing, destroy siren, can install at the loud-speaker opening place and trigger metal gauze 19, this net is electrically connected with transistor collector end C point, and this Netcom crosses insulating mat 21 and fixes with the lock case lid.The other end of lock housing body is equipped with the breaking alarming circuit that is made of socket 14,15, socket 14 is fixing with the insulation of lock housing body, and be electrically connected with transistor collector end C point, spring support core in this socket is electrically connected with the B point of transistor base end, socket 15 is directly fixing with the lock housing body, and is electrically connected with spring support core in it, between the spring support core of two sockets by two normally closed contacts 32 electrical connections, when flexible locking wire inserted socket, this normally closed contact and spring support core disengaged.Respectively there is a plug 16 at the two ends of flexible locking wire, 17 of plug and inserted links are fixed with epoxy resins insulation, be connected to a multiple triggering lead 22 that opens circuit of turning back between two plugs, arrange that in the outside of this lead many anti-bypasses trigger lead 33, one end of this lead is electrically connected with left inserted link, the other end and the insulation of right inserted link are fixing, and the lead in this circuit all uses enamel wire.The utility model not only is used for bicycle motorcycle, also can be used for automobile, also can be used for preserving other article.

Claims (5)

1, a kind of vehicle automatic alarm anti-theft lock, by lock housing body (6), lock core (5) and U-shaped lock fork (7) are formed, it is characterized in that, alarm switch circuit (2) is housed in the lock housing body, the mouth of this circuit is connected to normally open contact (10) and siren (11), the transistor collector end serial connection relay coil (8) of this circuit, collecting electrode self-sustaining normally open contact in parallel (9) with emitter terminal, be equipped with in the described U-shaped lock fork and trigger lead (30), the external flexible locking wire (18) that is equipped with of lock housing, this locking wire contains and triggers lead (22), the transistor base termination has by socket (14), (15) the breaking alarming circuit of Gou Chenging, transistor collector termination have by short-circuit piece (12), (13) the short-circuit alarming circuit of Gou Chenging.

2, vehicle automatic alarm anti-theft lock according to claim 1 is characterized in that, the inwall of described lock housing body is provided with and triggers lead (26), and this triggers lead and is electrically connected with the transistor collector end.

3, vehicle automatic alarm anti-theft lock according to claim 2 is characterized in that, the loud-speaker opening of described lock housing body (20) is located to be provided with and triggered metal gauze (19), and this net is electrically connected with the transistor collector end.

4, vehicle automatic alarm anti-theft lock according to claim 3 is characterized in that described lock housing body fixing screw (23) locates to be provided with the elasticity short-circuit piece.

5, vehicle automatic alarm anti-theft lock according to claim 4 is characterized in that, has multiple opening circuit of turning back to trigger lead (22) in the described locking wire, and has many anti-bypasses to trigger lead.