CN203433611U - Guard device equipped with telephone alarm - Google Patents
Guard device equipped with telephone alarm Download PDFInfo
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- CN203433611U CN203433611U CN201320415969.6U CN201320415969U CN203433611U CN 203433611 U CN203433611 U CN 203433611U CN 201320415969 U CN201320415969 U CN 201320415969U CN 203433611 U CN203433611 U CN 203433611U
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- copper foil
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Abstract
A guard device equipped with a telephone alarm belongs to the technical field of automatic control and is jointly composed of an early warning signal fetching sheet, an early warning electronic circuit, an alarm starting unit, a sound system and a telephone alarm. The alarm starting unit comprises a travel switch, a lockhole switch and a radio remote-control transmission circuit. The early warning signal fetching sheet is installed on a door to cover the lockhole switch and a lockhole completely. Touch signals can be generated by the early warning signal fetching sheet as soon as someone tries to break the lockhole, and then the sound system is started via the early warning electronic circuit to generate an early warning. The sound system and the radio remote-control transmission circuit can still be started if a house is broken in savagely or the lockhole is broken, then an on-site alarm sound and an alarm signal are generated, and external persons can be informed through the telephone alarm. The telephone alarm adopts an integrated dialing mode which is large in storage capacity, so that multiple personnel can be informed, and performances of anti-theft products are further improved.
Description
Technical field
Belong to automatic control technology field.
Background technology
Family is happy bay, the family public security device articles for use that are absolutely necessary, nowadays, and the quickening of rhythm of life, situation unmanned in family happens occasionally, if now there is thing in family, in family, how people will just can learn, this is also a problem.
Allow people in family learn thing in family, will use wireless remote control, and present remote control is very strict to the requirement of weather and surrounding environment, weather is good, surrounding environment is spacious, remote control is stable, otherwise remote control effect is bad, and the wireless remote control in this product is in the situation that receiving fixedly, therefore will just can meet the requirements with which type of transmitting, this is also a difficult problem.
Anti-theft safety door is basic security personnel's equipment; in numerous anti-theft safety doors; the alarm being equipped with is all to only have in flagrant delict just to produce and report to the police, cannot at the beginning of crime, just send warning and be prevented, and with regard to anti-theft safety door, can only be just the protection of passive type like this.
But how could at the beginning of crime, just send warning, allow anti-theft safety door possess active protection? with which type of circuit, just can reach and report to the police in advance again.
In sum, because a variety of causes, present antitheft series products also needs further reinforcement.
Summary of the invention
Main task of the present invention is a kind of new warning product of design, take full advantage of existing patent achievement technology, at the beginning of having crime, just send warning, allow and report to the police in advance, crime is prevented and is expert at for before, when busy in family, use wireless remote control, utilize advanced network system, notify in time personnel outside, antitheft series products is obtained further perfect.
The technical solution used in the present invention is:
1, the surveillance device of being furnished with telephone alarm takes out sheet by early warning signal, early warning electronic circuit, and warning start unit, sound system, telephone alarm form jointly.
Wherein: it is that a sheet metal is positioned on top, door lock hole that early warning signal takes out sheet, and the lockhole switch in lockhole and alarming starter is covered completely; On early warning signal taking-up sheet, weld a wire and draw, be connected on early warning electronic circuit.
Warning start unit is that travel switch, lockhole switch and wireless remote control radiating circuit form jointly.
Travel switch is positioned on door and doorframe junction, and draw with wire travel switch contact, and travel switch extension line is connected on sound system and wireless remote control radiating circuit start-up circuit.
Lockhole switch is arranged on lockhole top, early warning signal takes out sheet below, early warning signal takes out the button of oppressing lockhole switch after sheet is positioned on door lock hole, with wire, the contact of lockhole switch is drawn, and is connected on sound system and wireless remote control radiating circuit start-up circuit.
Wireless remote control radiating circuit is that wireless remote control radiating circuit is comprised of radio transmission part, copper foil antenna and external antenna.
Radio transmitter circuit is: one end of copper foil antenna is input end, i.e. power firestreak end, and the live wire of coding integrated circuit is connected on power firestreak end.
The output of coding integrated circuit connects one end of modulated resistance, the base stage of another termination modulator tube of modulated resistance, the grounded emitter of modulator tube, modulator tube collector is divided into three tunnels, the first via connects the emitter of vapotron, the second tunnel connects a termination in three terminations of crystal oscillator, and Third Road connects one end of a shunt capacitance, on the input end of another termination copper foil antenna of this electric capacity.
Another two terminations of crystal oscillator, the termination line input end of starting to exchange fire, another termination connects the base stage of vapotron.
The base stage of vapotron connects a resistance, and another termination of resistance is connected on copper foil antenna input end.
The input termination of copper foil antenna has also connect an electric capacity, and this electric capacity other end is connected on copper foil antenna output terminal, i.e. high-frequency emission pipe collector.
Early warning electronic circuit is the normal phase input end that early warning signal is incorporated into first order operational amplifier, the negative phase end of first order operational amplifier is connected a gain adjusting resistance with the output of first order amplifier, the output of first order amplifier is connected to the normal phase input end of second level amplifier, comparison bleeder circuit by two resistance series connection, two resistance series connection points connect the negative phase end of second level amplifier, bleeder circuit one end line of starting to exchange fire, other end ground wire, the output of second level amplifier be the output of early warning electronic circuit, is connected on sound system.
Sound system is the base stage that the output of voice sheet has connected preposition amplifier tube, the grounded emitter of preposition amplifier tube, collector is connected in the base stage of the PNP triode that forms power amplifier, the base stage that forms the PNP triode of power amplifier has also connect one end of power amplifier level pull-up resistor, the pull-up resistor other end connects to form the base stage of the NPN triode of power amplifier, the commissure electric capacity of central point series winding that the PNP triode of composition power amplifier is connected with NPN transistor emitter, one end of another termination loudspeaker of commissure electric capacity, the other end ground wire of loudspeaker, the NPN triode Integrated electrode that forms power amplifier is received in the output of early warning electronic circuit.
Telephone alarm is that the button Copper Foil Output matrix end extension line from a telephone set dialing button printed panel is connected with the button pin end in dialing integrated circuit; Corresponding two the Copper Foil extension lines of hands-free button from keyboard for telephone set, are connected with an output that receives programme control circut; With phone dial set, become the storage tube foot in circuit to be connected with the multidigit output terminal that receives programme control circut respectively; With phone dial set, become the signal output part pin in circuit to connect telephone wire, the input that receives programme control circut is connected in the output of decoding integrated circuit.
2. two resistor powers in the comparison bleeder circuit in early warning electronic circuit are 1/8th watts.
3, in sound system, loudspeaker are loudspeaker of internal magnetization.
4, the copper foil antenna of wireless remote control transmitting is shaped as English lower case n, antenna Copper Foil width is 2mm, the Copper Foil length of two vertical parallel in left and right is 30mm, and the spacing of two vertical parallel Copper Foils is 20mm, and the height that kiss connects the arc Copper Foil of two vertical parallel Copper Foils is 4.5mm.
5, wireless remote control transmitting is that the copper foil antenna output terminal in printed panel is that high-frequency emission pipe collector place has increased an electric capacity, one end of electric capacity is that high-frequency emission pipe collector is connected with copper foil antenna output terminal, and the electric capacity other end is connected with external antenna one end
6, the external antenna of wireless remote control transmitting is coil antenna.
7, in telephone alarm, dialing is dialing integrated package.
For having a clear understanding of the meaning of the technical program, first will make the following instructions:
Present inventor is studied to antitheft door, and present stage is open the door without mechanical key, but adopt wireless remote control method to open the door, and the lockhole opening the door with mechanical key to be only a kind of backup, when breaking down, just enables, so lockhole can seal.
For this reason, the existing meaning to each technical measures of the present invention, concrete condition is further explained as follows:
One, the present invention design is that a kind of band has levels and has the alarm of several functions.
Its first function is those people that may commit a crime of warning, this function is exactly: when the hand of crime rigidly connects, touch above lockhole after cover plate, sound system will send pre-warning, this warning is more neutral, as the sound can send " please noting ", or the language such as " please not staying at this " prevents, by the benefit one of " neutrality " language, be impossible to being not intended to person, damage, because do not send excessive language.
The 2nd, to criminal, but can cause very large psychological pressure, the generation of its such warning of reason can make him know clearly, early has preparation in room, if continued, must there is " below " waiting for, by having thereby hinting obliquely at later risk and difficult, produce and halt the idea into very wise move at this point.
So played the initiatively effect of protection.
The 3rd, this warning can more or not cause in terror neighbours, so the problem that scientifically technical solution background proposes.
Two, the principle that pre-warning produces is: when criminal's hand touches after the signal leading sheet of lockhole top, just be imported in the in-phase end of operational amplifier of the first order and amplify, being input to again afterwards comparison amplifier further amplifies, this have a very large gain, can fully guarantee sensitivity and the reliability of pre-alarm signal.
Its reason is in this circuit, the resistance of first order operational amplifier (in accompanying drawing 1 103) can be adjusted the gain of this grade flexibly, and the divider resistance ratio (106 in accompanying drawing 1) of adjusting the comparison amplifier end of oppisite phase that second level operational amplifier forms can be adjusted again the gain of this grade flexibly.
Three, the principle of alarming starter is: when there being people to force open the door by barbarous mode, door is subjected to displacement with doorframe, be contained in door and the travel switch of doorframe junction because of magnet away from and contact is changed, send warning initiating signal, lockhole switch is mainly the criminal for the pre-warning of not preventing, if think formal damage lock port lid, while entering house by cracking lockhole, to send out and displacement by the shift knob of lockhole cover plate (being also that early warning signal takes out sheet) lower compression, and send the signal of formal warning, because alarming starter has been connected on sound system, so when alarming starter has had after signal, sound system can start immediately and sends chimes of doom.
Four, the principle of sound system is: by a triode, formed the prestage that sound equipment amplifies, by a PNP triode and NPN triode, formed complementary circuit audio frequency has been carried out to power amplifier, when having pre-alarm signal, the power supply of having opened this part is controlled in its output, so have voice to produce, due to this electric circuit constitute be an OTL rather than OCL circuit, so debugging is simple, and have element not perishable, and the higher advantage of efficiency.
Five, in measure 1, implemented wireless remote control radiating circuit, the distance of its transmitting is that sensitivity and weather have a significant impact, and the present invention is very high to the requirement of sensitivity, if by traditional method for designing, very difficult assurance meets designing requirement of the present invention, its reason is, position and distance that general transmitting can Iterim Change transmitting can receive that signal just could as long as can meet at that time reception.And transmitting of the present invention and receiving position are definite, in use procedure, can not change because of the difference of weather, (can affect like that normal life is breezy is used to), once at inclement weather temporarily, just be difficult to guarantee the performance of product, so essential, increase necessary measure.And the present invention can largely improve sensitivity, the copper foil antenna and the increase external antenna that are specific a kind of English lower case n shape improve sensitivity, but increase external antenna, must do certain processing to radiating circuit, so just can reach best effect.The first must increase an electric capacity, isolates with antenna.It two is that this electric capacity must be welded in a special position, this position must be to be one end of high-frequency emission pipe collector at the antenna Copper Foil output terminal at printed panel, and can not be in other place, this external antenna can adopt coil, its benefit is, the reception having had, is also convenient to install.
Six, dialing integrated circuit in telephone set has following function, the one, can store a plurality of telephone numbers, in the situation that prior oneself storage is complete (the present invention can utilize former existing phone to store this integrated circuit), as long as being stored to pin, it adds a trigger pip, this sheet will automatically be controlled and send a phone number dial, so its a plurality of storage number ends have been connected on respectively on a plurality of output terminals in first programme control circut, the dialing output terminal of this integrated circuit has been connected on telephone set, so when starting telephone call, the multi-section telephone number that a plurality of output terminals of first programme control circut can start this element storage outwards dials.The models of a lot of dialing integrated circuit have powerful storage number function, and a lot of integrated circuit storage capability are all at 10 more than number, so phone circular function is very powerful.
Receiving programme control circut can consist of a variety of circuits, the Copper Foil that its first output terminal is corresponding with the Hands-free key of telephone set in this part is connected, other output is stored pin with the multidigit in dialing integrated circuit respectively and is connected, and calls out in accordance with regulations all receiver numbers that this sheet is stored.
After the invention process, there is following outstanding advantage:
1, improve defence rank, more focused on the idea of putting prevention first.
The symptom of a trend that much may occur can be prevented in advance.
People's hand contact lockhole cap once there be the heart of crime, will send neutral warning language, immediately because this early warning also has distance from forcing open the door very much, so criminal is still had to very large deterrent effect.
2, having people to want to enter room by barbarous mode, door is separated with doorframe, and alarming starter also can promote sound system, sends warning.
3, do not affect neighbours's relation, do not injure person unintentionally, energy science is processed the relation of " having a mind to " and " being not intended to " behavior.
4, do not lose the due function of common alarm.
5, lockhole switch, does not need artificial additional move, and (as opened the door at every turn, closing involution behind the door), does not affect the normal habits and customs of people, thus do not affect the each starting of security system normal operation.
6, after the invention process; anti-theft safety door and alarm have been realized the combination of science; the advantage that has possessed two kinds of protectors; usually both people can be kept outside the door; when running into other people and committing a crime; can send two kinds of warnings; to increasing " the initiatively protectiveness " of anti-theft safety door; (its implication is; function of the present invention will suppress crime behavior generation; and whether waiting for passively that it destroys) and be all very significant, the situation of the passive defence of anti-theft safety door so this product is through with completely, has promoted security personnel's performance of anti-theft safety door all sidedly.
7, pre-warning circuit has very high sensitivity and reliability, after debugging, is all applicable to all-environment needs, and circuit is simple, and debugging is convenient.
8, the line power of sound equipment caution system is large, simple, and debugging is convenient, power saving.
9, the utilization of wireless remote control radiating circuit, has improved remote-control sensitivity, makes launching effect better.
10, when nil case occurs, the telephone set in message handler can be used as common communication telephones.
Accompanying drawing explanation
Fig. 1 is that the present invention is early warning electronic circuitry.
In figure: 3, early warning signal takes out sheet lead-in wire; 102, first order amplifier positive terminal; 103, first order amplifier gain adjusting resistance; 104, first order amplifier negative phase end; 105, first order operational amplifier; 106, second level amplifier; 107, second level amplifier negative phase end; 108, second level amplifier positive terminal; 109, second level comparison amplifier divider resistance; 120, warn in advance output line.
Fig. 2 is travel switch scheme of installation.
In figure: 70, anti-theft safety door; 62, the box of travel switch is installed; 10, travel switch; 65, hinge; 128, travel switch extension line.
Fig. 3 is lockhole switch scheme of installation.
In figure: 70, anti-theft safety door; 71, lockhole; 101, early warning signal takes out sheet; 3, early warning signal takes out sheet lead-in wire; 79, the printed panel of welding lockhole switch; 119, lockhole switch; 127, lockhole switch extension line.
Fig. 4 is wireless remote control radiating circuit figure.
In figure: 118, coding integrated circuit; 119, modulated resistance; 120, modulator tube; 122, power valve; 123, crystal oscillator; 124, copper foil antenna input end ground capacitance; 125, copper foil antenna; 126, the commissure electric capacity that high-frequency emission pipe collector place increases; 128, external coil antenna.
Fig. 5 copper foil antenna schematic diagram.
In figure: 125, copper foil antenna; 155, the spacing of two vertical parallel copper foil antennas; 156, the Copper Foil width of copper foil antenna; 157, the length of vertical parallel copper foil antenna; 158, kiss connects the height of the arc Copper Foil of two vertical parallel copper foil antennas.
Fig. 6 is signal conditioning package schematic diagram.
In figure: in figure: 851, receiving antenna; 852, radio system; 853, programme control circut; 859, integrated dialing piece; 860, the output line that Hands-free key is drawn; 861, the matrix Copper Foil extension line that in phone keypad, button forms; 862, hands-free button; 863, other useless button on keyboard; 865, telephone key dish.
Fig. 7 is sound system circuit figure.
In figure: 127, lockhole switch extension line; 128, travel switch extension line; 299, lockhole switch connecting sound equipment system or gate diode; 289, travel switch connecting sound equipment system or gate diode; 120, warn in advance output line; 301, neutral voice sheet; 302, preposition amplifier tube; 303, preamplifier state load dual-use function resistance; 304, the PNP pipe that forms power amplifier; 305, the NPN pipe that forms power amplifier; 306, commissure electric capacity (OTL circuit capacitance); 308, loudspeaker.
Fig. 8 is that each several part is related to schematic diagram.
In figure: 101, early warning signal takes out sheet; 3, early warning signal takes out sheet extension line; 119, lockhole switch; 127, lockhole switch extension line; 10, travel switch; 128, travel switch extension line; 518, warn in advance electronic circuit; 109, sound system; 186, wireless remote control transmitting; 187, signal conditioning package.
Embodiment
Fig. 1 to Fig. 8 has described specific embodiment of the invention example jointly.
One, alarming starter, early warning signal taking-up sheet, alarming starter part are installed, as Fig. 2 and Fig. 3 enforcement.
1, early warning signal takes out sheet and has made dome shape, and area is greater than lockhole, is connected on early warning signal takes out on sheet with wire, and wire another side is connected on early warning electronic circuit.
2, lockhole switch is first fixed on printed panel, and printed panel is arranged on lockhole top again, and early warning signal takes out the button of oppressing lockhole switch when sheet is fixed on antitheft door.
3, lockhole switch contact extension line be connected on wireless remote control transmitter trigger circuit with sound system in.
4, travel switch is first arranged in a box, and box is fixed in anti-theft safety door again, after anti-theft safety door and doorframe closure, and the button of compressing travel switch.
5, the contact extension line of travel switch be connected on wireless remote control transmitter trigger circuit with sound system in.
Two, implement pre-warning part.
1, press Fig. 1 welding, in figure, two-stage amplification circuit adopts 324.
It is the kind of positive signal that startup or door are selected three input and output.
2, will warn in advance output is connected in sound system.
3, adjust the sensitivity of amplifier, make it to meet the requirements.
Adjust gain resistor in amplifier and be second level comparison amplifier divider resistance (in Fig. 1 109).
three, formal warning part is installed.
1, the positive pole that the extension line of travel switch and the extension line of lockhole switch is respectively connected to a diode, the negative pole of two diodes is connected together and is connected on sound system.
2, sound system welds sound system by Fig. 7.
Four, wireless remote control transmitting is as Fig. 4 welding, and copper foil antenna is formulated as shown in Figure 5.
Five, implement signal conditioning package within doors: as shown in Figure 6.
1, look for an ordinary telephone set.
2, telephone set is taken apart, exposed the printed panel corresponding with keyboard.
When 3, being fixed on hands-free button and pressing with one end of two wires, on corresponding two Copper Foils that connect of its conductive rubber, the other end is connected on the first output terminal of program-controlled unit.
4, with one end of many group wires, be connected in respectively on telephone key dish on the formed button Copper Foil of button matrix, the other end is connected on pin corresponding in the dialing integrated circuit of message unit.
5, dialing integrated circuit signal output terminal is connected on the telephone wire of telephone set.
6, the output of highly sensitive radio system is connected on the starting end that receives programme control circut, the output terminal that receives programme control circut connects the input end of dialing integrated circuit.
7, by the telephone set lid involution of dismounting.
Claims (7)
1. the surveillance device of being furnished with telephone alarm, is characterized in that: by early warning signal, take out sheet, and early warning electronic circuit, warning start unit, sound system, telephone alarm form jointly;
Wherein: it is that a sheet metal is positioned on top, door lock hole that early warning signal takes out sheet, and the lockhole switch in lockhole and alarming starter is covered completely; On early warning signal taking-up sheet, weld a wire and draw, be connected on early warning electronic circuit;
Warning start unit is that travel switch, lockhole switch and wireless remote control radiating circuit form jointly;
Travel switch is positioned on door and doorframe junction, and draw with wire travel switch contact, and travel switch extension line is connected on sound system and wireless remote control radiating circuit start-up circuit;
Lockhole switch is arranged on lockhole top, early warning signal takes out sheet below, early warning signal takes out the button of oppressing lockhole switch after sheet is positioned on door lock hole, with wire, the contact of lockhole switch is drawn, and is connected on sound system and wireless remote control radiating circuit start-up circuit;
Wireless remote control radiating circuit is that wireless remote control radiating circuit is comprised of radio transmission part, copper foil antenna and external antenna;
Radio transmitter circuit is: one end of copper foil antenna is input end, i.e. power firestreak end, and the live wire of coding integrated circuit is connected on power firestreak end;
The output of coding integrated circuit connects one end of modulated resistance, the base stage of another termination modulator tube of modulated resistance, the grounded emitter of modulator tube, modulator tube collector is divided into three tunnels, the first via connects the emitter of vapotron, the second tunnel connects a termination in three terminations of crystal oscillator, and Third Road connects one end of a shunt capacitance, on the input end of another termination copper foil antenna of this electric capacity;
Another two terminations of crystal oscillator, the termination line input end of starting to exchange fire, another termination connects the base stage of vapotron;
The base stage of vapotron connects a resistance, and another termination of resistance is connected on copper foil antenna input end;
The input termination of copper foil antenna has also connect an electric capacity, and this electric capacity other end is connected on copper foil antenna output terminal, i.e. high-frequency emission pipe collector;
Early warning electronic circuit is the normal phase input end that early warning signal is incorporated into first order operational amplifier, the negative phase end of first order operational amplifier is connected a gain adjusting resistance with the output of first order amplifier, the output of first order amplifier is connected to the normal phase input end of second level amplifier, comparison bleeder circuit by two resistance series connection, two resistance series connection points connect the negative phase end of second level amplifier, bleeder circuit one end line of starting to exchange fire, other end ground wire, the output of second level amplifier be the output of early warning electronic circuit, is connected on sound system;
Sound system is the base stage that the output of voice sheet has connected preposition amplifier tube, the grounded emitter of preposition amplifier tube, collector is connected in the base stage of the PNP triode that forms power amplifier, the base stage that forms the PNP triode of power amplifier has also connect one end of power amplifier level pull-up resistor, the pull-up resistor other end connects to form the base stage of the NPN triode of power amplifier, the commissure electric capacity of central point series winding that the PNP triode of composition power amplifier is connected with NPN transistor emitter, one end of another termination loudspeaker of commissure electric capacity, the other end ground wire of loudspeaker, the NPN triode Integrated electrode that forms power amplifier is received in the output of early warning electronic circuit,
Telephone alarm is that the button Copper Foil Output matrix end extension line from a telephone set dialing button printed panel is connected with the button pin end in dialing integrated circuit; Corresponding two the Copper Foil extension lines of hands-free button from keyboard for telephone set, are connected with an output that receives programme control circut; With phone dial set, become the storage tube foot in circuit to be connected with the multidigit output terminal that receives programme control circut respectively; With phone dial set, become the signal output part pin in circuit to connect telephone wire, the input that receives programme control circut is connected in the output of decoding integrated circuit.
2. the surveillance device of being furnished with telephone alarm according to claim 1, is characterized in that: two resistor powers in the comparison bleeder circuit in early warning electronic circuit are 1/8th watts.
3. the surveillance device of being furnished with telephone alarm according to claim 1, is characterized in that: in sound system, loudspeaker are loudspeaker of internal magnetization.
4. the surveillance device of being furnished with telephone alarm according to claim 1, it is characterized in that: the copper foil antenna of wireless remote control transmitting is shaped as English lower case n, antenna Copper Foil width is 2mm, the Copper Foil length of two vertical parallel in left and right is 30mm, article two, the spacing of vertical parallel Copper Foil is 20mm, and the height that kiss connects the arc Copper Foil of two vertical parallel Copper Foils is 4.5mm.
5. the surveillance device of being furnished with telephone alarm according to claim 1, it is characterized in that: wireless remote control transmitting is that the copper foil antenna output terminal in printed panel is that high-frequency emission pipe collector place has increased an electric capacity, one end of electric capacity is that high-frequency emission pipe collector is connected with copper foil antenna output terminal, and the electric capacity other end is connected with external antenna one end.
6. the surveillance device of being furnished with telephone alarm according to claim 1, is characterized in that: the external antenna of wireless remote control transmitting is coil antenna.
7. the surveillance device of being furnished with telephone alarm according to claim 1, is characterized in that: in telephone alarm, dialing is dialing integrated package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415969.6U CN203433611U (en) | 2013-07-14 | 2013-07-14 | Guard device equipped with telephone alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415969.6U CN203433611U (en) | 2013-07-14 | 2013-07-14 | Guard device equipped with telephone alarm |
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| Publication Number | Publication Date |
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| CN203433611U true CN203433611U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320415969.6U Expired - Fee Related CN203433611U (en) | 2013-07-14 | 2013-07-14 | Guard device equipped with telephone alarm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105809911A (en) * | 2014-12-28 | 2016-07-27 | 重庆宁来科贸有限公司 | Anti-theft device with integrated telephone alarm |
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2013
- 2013-07-14 CN CN201320415969.6U patent/CN203433611U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105809911A (en) * | 2014-12-28 | 2016-07-27 | 重庆宁来科贸有限公司 | Anti-theft device with integrated telephone alarm |
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