CN2060912U - Theft-guarding alarms with multi-function - Google Patents

Abstract

The utility model relates to a theft-guarding alarm with multi-function, which is characterized in that a door lock anti-pried alarm circuit, a two-way breakage alarming circuit, an emergency alarm circuit, an electronic cipher code identification circuit, and a music door bell circuit are composed of electronic elements of an integrated circuit chip, a transistor, etc.; alarm signals are obtained by a door lock, a sheet metal, a magnetic switch arranged on a door and a door frame, and control lines which can be laid as will. The utility model not only has complete functions, and can be directly matched with any door lock, but also has the advantages of small size, light weight, high sensitivity, and simple installation and operation, having application to the offices of departments, factories and mines, and countries, dormitories, residential families, warehouses, yards, etc.

Description

Theft-guarding alarms with multi-function

The utility model relates to a kind of burglar alarm, and particularly a kind of function is many, and the burglar alarm with electronic cipher recognition function.

Existing burglar alarm kind is more, but most function singleness, the anti-theft alarm lock of producing as Sichuan Yongchuan county alarm equipment factory is a kind of device that a kind of built-in lock that will make specially is associated in alarm, utilize that mechanical driving device is switched on or switched off electrical contact on the built-in lock, the work of triggering warning circuit reaches the burglar alarm effect.

A kind of safety alarm lock is disclosed for patent announcement CN2042873U number, its feature is to set up a contact to constitute lock-switch in the back of dead bolt bar, metal spring leaf is housed on door and doorframe constitutes door switch, under the situation that two groups of switches all disconnect, promptly do not turn the key in the lock and when door pried open the alarm warning that pipes.

The function of these two kinds of alarms is just sent chimes of doom when door lock is prized, and the special-purpose built-in lock through the transformation of the way need be installed on door.

The purpose of this utility model provides a kind of Multifunction burglar alarm, it can with any door lock adapted, and possess door lock, window Pickproof alarm, the two-way break alarm, the emergency condition emergent alarm, electronic cipher identification and as multiple functions such as music door-bells, applied widely, with low cost, be more suitable for plant produced and promote the use of.

The purpose of this utility model reaches by following measure, alarm comprises door lock and the control line that is connected with physical construction, form warning system by warning circuit, electronic cipher circuit and power supply etc., it is characterized in that described warning circuit comprises one by integrated circuit chip IC ₁, IC ₂, diode D ₁, transistor T ₁, T ₂T ₆, the door lock Pickproof alarm circuit that loudspeaker Y forms; One by integrated circuit chip IC ₂, diode D ₂, D ₃, transistor T ₂, T ₃, T ₄The two-way break alarm circuit of forming; With one by emergency button K ₂The emergency warning circuit that constitutes, described electronic cipher circuit be one by transistor T ₅, T ₇And at least one-level above by integrated circuit chip IC ₄, diode D ₅, button AN ₃, R ₁₅, R ₁₆, C ₅, C ₆The electronic cipher identification circuit that element circuit is formed.

The purpose of this utility model can also be expressed by following other technical measures: diode D ₄, D ₅Can be connected on IC by the password requirement ₄, IC ₅Output pin Y ₁～Y ₉Any pin on, work as AN ₂, AN ₃When pressing number of times and conforming to the password number, D ₄, D ₅The AND circuit of forming just can make transistor T ₅Conducting, T ₇End; By integrated circuit chip IC ₃, transistor T ₆Constitute music doorbell circuit; Door lock B links to each other with the ground wire of circuit with lead, near the dead bolt of door lock, sheet metal A is installed, sheet metal A and integrated circuit chip IC ₁The 2nd pin links to each other with lead; By magnet C, often open tongue tube D and form magnetic switch, magnet C and tongue tube D are installed in respectively on door and the doorframe, the two ends of tongue tube D with lead be connected on binding post J after control line E connects ₁Two terminals on.

The drawing of accompanying drawing is described as follows:

Fig. 1 is an electrical schematic diagram of the present utility model;

Fig. 2 is sheet metal A and door lock B scheme of installation;

Fig. 3 is the magnetic switch synoptic diagram;

Fig. 4 is a scheme of installation of the present utility model.

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

Integrated circuit chip IC among sheet metal A and Fig. 1 among Fig. 2 ₁(NE555) 2 pin link to each other with lead, and door lock B links to each other with ground wire among Fig. 1 with lead.C is a magnet among Fig. 3, and D is one and often opens tongue tube, and C, D form a magnetic switch jointly, and as seen from Figure 4, C, D closely are installed in respectively on door and the doorframe as far as possible, J among Fig. 1, Fig. 4 ₁, J ₂Be two groups of break alarm binding posts, the two ends of tongue tube are connected on break alarm binding post J after connecting with the enamel-cover control line E on lead and the window ₁Two terminals on, under the door situation of normally closing, tongue tube is connected.As power switch K ₁Dial to position 1 emergency button K ₂When being positioned at " breaking ",, on the sheet metal A induced signal will be arranged, or sheet metal A and door lock B will there be signal to be input to integrated circuit chip IC after by the metal objects short circuit if door lock prized ₁2 pin, IC ₁3 pin will become high level, and the duration is about 30 seconds, transistor T ₁With diode D ₁Conducting makes transistor T ₂Conducting, warning integrated circuit chip IC ₂(model: B pin output alarm signal 9561), through transistor T ₆After the amplification, loudspeaker sends alarm sound, continues about 30 seconds.If the picking lock action does not stop, said process can repeat again.If pry open door or window by force, because tongue tube D disconnection, or enamel-cover control line E disconnection, make break alarm binding post J ₁Disconnect transistor T ₃Conducting, diode D ₂Conducting, transistor T ₂Also can conducting, at this moment loudspeaker sends continual chimes of doom.Break alarm binding post J ₂Can connect up as required, work as J ₂When last line is broken, transistor T ₄Conducting, diode D ₃Conducting also can make transistor T ₂Lasting chimes of doom is sent in conducting, loudspeaker.Diode D ₁, D ₂, D ₃Form OR circuit, no matter make J ₁Or J ₂Be disconnected or sheet metal A in signal when input, arranged, can both make transistor turns, thereby make warning integrated circuit chip IC ₂Send alerting signal.

Be also shown in from Fig. 1, the electronic cipher recognition function is by integrated circuit chip IC ₄, IC ₅(decimal system is counted a sequential code translator CD4017), transistor T ₅, T ₇, password button AN ₂, AN ₃, bell button AN ₁, diode D ₄, D ₅The common cryptochannel of forming is finished.D ₄Negative pole be connected on IC ₅Output Y ₁～Y ₉In any pin on, be assumed to be Y _MD ₅Negative pole be connected on IC ₄Output Y ₁～Y ₉In any pin on, be assumed to be Y _NThe MN here is exactly the password number.Bell button AN ₁As the reset button usefulness of cryptochannel, work as AN here ₁After being pressed, IC ₄, IC ₅Y ₁～Y ₉The output of pin is low level, makes T ₅End T ₇Conducting can realize foregoing warning function.Work as AN ₂After pressing M time, Y _MThe output high level makes D ₄End; Work as AN ₃After pressing N time, make IC ₄Y _NThe output high level makes D ₅End; At this moment T ₅Saturation conduction makes T ₇End, block the integrated circuit chip IC that firmly reports to the police ₂, make IC ₂Can not send alerting signal.By D ₄, D ₅The AND circuit of forming guarantees to have only the AN of working as ₂Press AN M time ₃Press N time, promptly MN is password when counting just, and alerting signal just can be blocked, if M and N have one not right, T ₅Will end T ₇Conducting can not influence warning function.Like this, count MN as long as the user knows password, just can be easily in open the door into family or avoid sounding the alarm when leaving home to lock a door of needs, after door lock is good, as long as password confounded or with AN ₁Press, cryptochannel is resetted, at this moment warning circuit will be in standby condition.Present embodiment is described to be the situation of having only two passwords, and the expanding password figure place needs only and adopts and D if desired ₄And D ₅, IC ₅And IC ₄, AN ₂And AN ₃Deng the similar also linked method of element, can reach.Under the warning standby condition, power switch K ₁In the position 1, so press bell button AN ₁Can not cause doorbell sound, at this moment AN ₁As the password usefulness that resets.

As power switch K ₁In the position 3, emergency button K ₂When " breaking " in the position, device is in the doorbell state, at this moment transistor T ₆Base stage and warning circuit integrated circuit chip IC ₂Disconnect, device can not send chimes of doom.At this moment T ₆Base stage and music collections integrated circuit chip IC ₃Link to each other, work as AN ₁When pressing, will trigger IC ₃AN is whenever pressed in work one time ₁, loudspeaker Y can send music playing sound one time.

As power switch K ₁When position 2, battery E _CDisconnect, whole alarm outage is not worked.

As power switch K ₁In the position 1 or 3 o'clock, promptly no matter alarm is in alarm condition still is the music door-bell state, as long as with emergency button K ₂Dial to " leading to ", at this moment IC ₂With T ₆Connect J ₂Disconnect, send round-the-clock chimes of doom immediately, meet emergencies so that be used for.

The utility model has following advantage compared to existing technology:

1, multiple functional, applied widely, can be used for the office in office, factories and miness, cities and towns, rural area, the places such as dormitory, resident family, house, garden;

2, highly sensitive, good reliability, alarm sound is loud and clear, false alarm can not take place;

3, production cost is low, volume is little, in light weight, easy to install and use, can use the built-in lock adapted with any door, the user also can be provided with control line as required flexibly.

Claims (6)

1, a kind of multi-function robbery protection alarm comprises the door lock and the control line that are connected with physical construction, partly forms warning system by warning circuit, electronic cipher circuit and power supply etc., it is characterized in that described warning circuit comprises one by integrated circuit chip (IC ₁, IC ₂), diode (D ₁), transistor (T ₁, T ₂, T ₆), the door lock Pickproof alarm circuit formed of loudspeaker (Y); One by integrated circuit chip (IC ₂), diode (D ₂, D ₃), transistor (T ₂, T ₃, T ₄) the two-way break alarm circuit formed; With one by emergency button (K ₂) emergency warning circuit that constitutes, described electronic cipher circuit be one by transistor (T ₅, T ₇) and at least one-level above by integrated circuit chip (IC ₄), diode (D ₅) button (AN ₃), R ₁₅, R ₁₆, C ₅, C ₆The electronic cipher identification circuit that element circuit is formed.

2, according to the described multi-function robbery protection alarm of claim 1, it is characterized in that diode (D ₄, D ₅) can be connected on (IC by the password requirement ₄, IC ₅) output pin Y ₁～Y ₉Any pin on.

3, according to the described multi-function robbery protection alarm of claim 1, it is characterized in that by integrated circuit chip (IC ₃), transistor (T ₆) the formation music doorbell circuit.

4, according to claim 1,2 described multi-function robbery protection alarms, it is characterized in that door lock (B) links to each other with the ground wire of circuit with lead, near the dead bolt of door lock, sheet metal (A) is installed, sheet metal (A) and (IC ₁) the 2nd pin links to each other with lead.

5, according to claim 1,2 described multi-function robbery protection alarms, it is characterized in that by magnet (C), often open tongue tube (D) and form magnetic switch, magnet (C) and tongue tube (D) are installed in respectively on door and the doorframe, the two ends of tongue tube (D) with lead be connected on binding post (J after control line (E) is connected ₁) two terminals on.

6, according to the described multi-function robbery protection alarm of claim 4, it is characterized in that by magnet (C), often open tongue tube (D) and form magnetic switch, magnet (C) and tongue tube (D) are installed in respectively on door and the doorframe, the two ends of tongue tube D with lead be connected on binding post (J after control line (E) is connected ₁) two terminals on.

Images