CN2293484Y - Cipher antitheft device for vehicle - Google Patents
Cipher antitheft device for vehicle Download PDFInfo
- Publication number
- CN2293484Y CN2293484Y CN97210462U CN97210462U CN2293484Y CN 2293484 Y CN2293484 Y CN 2293484Y CN 97210462 U CN97210462 U CN 97210462U CN 97210462 U CN97210462 U CN 97210462U CN 2293484 Y CN2293484 Y CN 2293484Y
- Authority
- CN
- China
- Prior art keywords
- relay
- circuit
- automobile
- hand
- armature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a cipher theft-protection device for an automobile, which adopts a control circuit composed of a transmitting circuit, a receiving circuit and an executive circuit, wherein, the executive circuit is connected with a relay J; the normally open points J1 and J2 of the relay J are arranged between the igniter of the automobile and the igniting switch of the automobile; an arc rack is fixed on the hand-operated brake of the automobile; an armature is arranged on the relay J; the armature extends into the slit of the rack. The relay J can be only conducted by that the cipher input is correct; the igniter starts to start the automobile; if the hood of the igniter is broken to start the automobile, the relay J is not energized, the armature is in the slit of the rack, the hand-operated brake can not be loosened, and thus the automobile can not move. The utility model adopts two-stage theft protection with safety.
Description
The utility model belongs to the mechanical ﹠ electrical technology field, is a kind of stolen device of automobile that prevents.
Existing alarms and security systems for automobiles kind is a lot, main type has car door anti-picking device, direction lever latching device, firing unit shutoff device and meets and steal warning device etc., above Car Burglar Alarm can prevent to some extent that all automobile is stolen, but has also simultaneously that serviceability is unreliable, complex structure, easily produces problem such as misoperation.
The purpose of this utility model is that a kind of stable and reliable working performance, vehicle cryptographic Car Burglar Alarm simple in structure will be provided.
Solution of the present utility model is to adopt password transmission circuit, password acceptor circuit and executive circuit to form control circuit, and the executive circuit of control circuit connects relay J, and the normal opened contact J of relay J is housed between the line of igniter for automobile and ignition lock
1And J
2, on the hand-operated brake device of automobile, be fixed with arc-shaped rack, armature is housed on the relay J, relay J is fixed near the tooth bar place, and armature stretches in the tooth bar slit.Be provided with a K switch between executive circuit and relay J, K switch is fixed on the shell of hand-operated brake device, and K switch disconnects at ordinary times, and during tension hand-operated brake device, tooth bar does not contact with switch, makes the K switch closure, and K switch can be the spring leaf switch.During start a car, the password input password transmission circuit that will set in advance earlier, the password acceptor circuit receives that the proper password instruction makes the executive circuit conducting, this moment, the hand-operated brake device was in tension, K switch closure, relay J energising, normal opened contact J
1, J
2Closure is used the key closes ignition switch again, but firing unit energising start a car, the magnet coil of relay J is with armature sucking-off tooth bar slit simultaneously, and the hand-operated brake device can unclamp, and automobile can freely travel; After tooth bar breaks away from K switch, the relay J outage, armature is released.If the password bad of input, not conducting of executive circuit, relay J is no power also, and closes ignition switch is because J
1, J
2Open circuit, the firing unit igniting of can not switching on, this moment, if the car stealer was with igniter shields destruction, and closing point firearm lead is lighted a fire, start a car, the relay J no power, armature is not attracted, still in the tooth bar seam, the hand-operated brake device can not unclamp, and automobile can't move.Control circuit can adopt present custom circuit, wherein password transmission circuit and acceptor circuit can adopt diode matrix circuit, NAND gate decision circuit, executive circuit can be that an aerotron cut-offs circuit, cut-off device integrated package, also warning circuit can be housed in the executive circuit, when receiving bad password, send alerting signal.Can use one the normal battle of relay J, is connected in two lines of firing unit and ignition lock on any line.
The utility model employing firing unit and hand-operated brake device two-stage are antitheft, stable work in work, safe and reliable, simple in structure.
Below in conjunction with accompanying drawing technical solutions of the utility model and embodiment are further specified:
Fig. 1 is the utility model circuit block diagram;
Fig. 2 is a hand-operated brake device part scheme drawing.
The utility model is made up of control circuit 1, igniter for automobile 3, ignition lock 4, vehicle manual brake 6, and control circuit 1 is made of password transmission circuit, password acceptor circuit, executive circuit, connects relay J on executive circuit
2, relay J
2Normal battle 5 be connected between firing unit 3 and the ignition lock 4, be fixed with tooth bar 7 on the hand-operated brake device 6, relay J
2Be fixed near on the shell 9 of tooth bar 7 relay J
2On armature 8 is housed, armature 8 extend in tooth bar 7 slits.Executive circuit and relay J at control circuit 1
2Between can install a K switch 10, K switch 10 is fixed on the shell 9 of hand-operated brake device 6.
Claims (2)
1, a kind of vehicle cryptographic Car Burglar Alarm, by control circuit (1), firing unit (3), ignition lock (4), hand-operated brake device (6) is formed, control circuit (1) is made of password transmission circuit, password acceptor circuit and executive circuit, it is characterized in that: the executive circuit of control circuit (1) connects relay J (2), is connected in the normal battle (5) of relay J (2) between firing unit (3) and the ignition lock (4); Be fixed with tooth bar (7) on the hand-operated brake device (6), relay J (2) is fixed near on the shell (9) of tooth bar (7), armature (8) is housed on the relay J (2) extend in the slit of tooth bar (7).
2, Car Burglar Alarm according to claim 1 is characterized in that: can install a K switch (10) between the executive circuit of control circuit (1) and the relay J (2), K switch (10) is fixed on the shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97210462U CN2293484Y (en) | 1997-01-30 | 1997-01-30 | Cipher antitheft device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97210462U CN2293484Y (en) | 1997-01-30 | 1997-01-30 | Cipher antitheft device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2293484Y true CN2293484Y (en) | 1998-10-07 |
Family
ID=33929375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97210462U Expired - Fee Related CN2293484Y (en) | 1997-01-30 | 1997-01-30 | Cipher antitheft device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2293484Y (en) |
-
1997
- 1997-01-30 CN CN97210462U patent/CN2293484Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |