CN201258646Y

CN201258646Y - Method for illegally opening cycle lock capable of shouting catching thief

Info

Publication number: CN201258646Y
Application number: CNU2008201368754U
Authority: CN
Inventors: 丁樟富
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-12
Filing date: 2008-09-12
Publication date: 2009-06-17
Anticipated expiration: 2018-09-12

Abstract

The utility model provides a vehicle lock which can emit a loud voice of catching thief when being opened illegally. An insulated alarm shell is internally provided with an alarm circuit board; one side of the alarm shell is provided with a lock head which consists of a key hole and a lock hole and is electrically connected with the anode of a power supply; the other side of the shell is provided with a lock tongue, an insulated layer and a lock bar which are sequentially arranged; a resistance R1 on the alarm circuit board is electrically connected with the two ends of the lock tongue and the lock bar; in order to achieve the object that the alarm is not given when the lock is self-opened, the power line is provided with a switch. Therefore, the voice of catching thief is given loudly regardless when the thief prizes the lock, cuts off the lock bar or prizes the lock after using short circuit of the wire. The alarm sheet is triggered by a method that the voice is given when the power is turned on, thus avoiding error alarming due to interference. The vehicle lock is suitable for bicycles and motor vehicles.

Description

Illegally open and to shout the lock of stopping thief

Affiliated technical field

The utility model relates to a kind of lock, especially can shout the lock of stopping thief.

Background technology

Present known lock, because there is not warning function, usually to be pried open by the thief, method such as cut off is stolen, though what have can report to the police, be crying of toy formula, not for to be noted by people, the employing break line type language alarm that also has, the thief is more and more cunning, with lock lead short circuit, so just can not report to the police earlier, car be stolen in the same old way.

Summary of the invention

In order to overcome existing lock, when illegally opening, not the shortcoming that language alarm and break alarm exist, the utility model provides a kind of lock, no matter be to pry open, cut off or use in advance the lead short circuit, lock all will be shouted and stop thief, and the thief is feared and cannot succeed.

The technical scheme that its technical problem that solves the utility model adopts is: in the warning shell of insulation, the warning circuit plate is installed, one side at the warning shell, the tapered end that installation is made up of keyhole and lockhole, be electrically connected with positive source, another side at shell, dead bolt, insulating layer, bolt are installed in order, resistance R on the warning circuit plate 1 is connected electrically in the two ends of dead bolt and bolt, to unblank not report to the police in order controlling oneself, on power line, to adorn a switch, like this, come picking lock again regardless of thief's picking lock or with the prior short circuit of lead, all can shout and stop thief.The warning circuit plate, adopt common short interruption alarm circuit, here that usefulness is CD4001, under normal condition (be that lock pins, dead bolt inserts in the lockhole), because the dividing potential drop of R1, R2, R3, the output that makes CD4001 is an electronegative potential, when R1 upper end open circuit to open circuit (bolt is cut off) in (being that lock is opened, pried open with key by keyhole) R1 lower end or the thief with lead with bolt and tapered end short circuit (being the R1 short circuit), the output of CD4001 becomes high potential, the VT1 conducting.General warning system directly triggers the KD56029 audio alert sheet of stopping thief with this signal, and the result disorderly reports to the police when interfering signal (firecrackers, electric switch).This circuit VT1 adopts 8550 switching tubes, when CD4001 is output as positive potential, and 8550 conductings, power supply is added on the positive pole of KD56029 through the step-down of LED luminous tube, and KD56029 just sends the sound of stopping thief, and zooms into loudly through VT2.Control oneself and unblank, use earlier the switch deenergization.

The beneficial effects of the utility model are, no matter the thief opens lock or use the lead short circuit with which kind of method, lock will send to shout and stop thief, and used device mostly is a finished product, easily purchases.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model structure chart.

Fig. 2 is the utility model warning circuit plate circuit theory diagrams.

Fig. 3 is the drawing of site of dead bolt bolt R1

In the drawings 1.Dead bolt 2. bolts 3. exhausted green layer 4. resistance R 1

5. tapered end 6. lockholes 7. keyholes 8. warning circuit plates

9. power supply 10. warning shells 11. alarm switches

The specific embodiment

In Fig. 1, the tapered end (5) that lockhole (6) and keyhole (7) are arranged is installed in one side of warning shell (10), warning circuit plate (8) is pressed schematic diagram Fig. 2 welding, be installed in the warning shell (10), wherein the positive pole of power supply (9) connects tapered end (5), and alarm switch (11) is serially connected in the power supply (9).In Fig. 3, the resistance R 1 (4) on the circuit board) be placed in the insulating layer (3), two ends are electrically connected dead bolt (1) and bolt (2) respectively, and bolt (2) is electrically connected with the upper end of the R2 of warning circuit (8) schematic diagram with lead.

Claims

1. illegally open and to shout the lock of stopping thief for one kind, in the warning shell of insulation, the warning circuit plate is installed, one side at the warning shell, the tapered end that installation is made up of keyhole and lockhole is electrically connected with positive source, another side at shell, dead bolt, insulating layer, bolt are installed in order, the resistance R on the warning circuit plate 1, be connected electrically in the two ends of dead bolt and bolt, it is characterized in that: the resistance R 1 on the warning circuit plate is placed in the insulating layer, be connected electrically in the two ends of dead bolt and bolt respectively, bolt is electrically connected with the warning circuit plate with lead.

2. can shout the lock of stopping thief according to right 1 described illegally opening, it is characterized in that: tapered end is connected electrically in positive source.

3 can shout the lock of stopping thief according to right 1 described illegally opening, and it is characterized in that: the triggering of alarm and sounding, adopt the method for connecting power supply.