CN2346910Y - Breaking alarming anti-theft door - Google Patents

Abstract

The utility model discloses a breaking alarming anti-theft door. The utility model is characterized in that a tailor-made glass plate (2) is arranged on the front side of a common anti-theft door (1) with aid of four circumjacent sliding rails (3). The back side of the tailor-made glass plate is attached with a circuitous and continuous conductive path formed by conducting slurry materials. When the door is broken, the tailor-made glass plate firstly cracks, the conductive path on the tailor-made glass plate is cut off, and a shutoff signal triggers a language alarming horn to give an alarm through an electronic circuit. The utility model has the advantage that sensing devices are distributed on the voluminous area of the front side of the door, and thus the robber can not find any area to open the door. The utility model also has high reliability and safety.

Description

A kind of anti-theft alarm door that breaks

The utility model relates to a kind of anti-theft alarm door.

In the present prior art, its anti-theft alarming method mainly is to utilize electric mechanical cipher control lock, and alarming line, the airtight damaged impression of door body, microswitch wait realizes its function.These technology are experienced (Chinese patent application number: 92223599) except that a door body airtight breakage, all the other all exist sensor to concentrate on problem in the zonule very, the robber adopts corresponding means to avoid the sensitizing range easily, and implement to destroy, thereby anti-theft effect is poor, and then there is the air seal poor reliability in door body air hermetic security door, leaks easily, and waited until body breakage and just reported to the police poor stability.

The purpose of this utility model is to provide a kind of its sensor to be distributed in very big zone, and has the anti-theft alarm door of higher reliability and safety.

The purpose of this utility model is achieved in that printing or spraying one deck electrocondution slurry on an ordinary plate glass, make electrocondution slurry attached on the glass surface, and the circuitous continuous conductive path of formation, again on the front of common security door (that is: when closing to the doorstep over against that outdoor face), fix a metal slide rail respectively near the edge up and down, by means of this four one slide rail, above-mentioned special glass plate and door front are installed on the front abreast.The side that conductive path arranged and separates a conductive path and a door body with a felt pad inwardly, and this piece special glass plate can cover the exhausted most area in a front, and a tapered end hole is arranged on this plate, can expose the tapered end of common security door.On the special glass plate two ends of conductive path respectively an electronic circuit board in the electricity consumption wired-AND gate link, electronic circuit board links with language alarm loudspeaker that are contained in the door again, whole circuit is by mains-supplied, and by one group of dry cell batteries power supply in support.When the robber destroys with powerful opposite house, must cause earlier that above-mentioned special glass plate breaks, thereby the conductive path that causes adhering on this plate opens circuit, this break signal makes the triode on the above-mentioned electronic circuit board be become by at ordinary times conducting to end, its collector potential raises and makes the controllable silicon conducting, thereby make alarming horn send the language alarm robber and dare not continue crime, even at this moment the robber connects gap again again, but because the decision of controllable silicon characteristic, this controllable silicon will keep conducting, reporting to the police can not stop.If the robber cuts off the power supply of civil power, then the back-up source in the door will guarantee normal power supply, and reporting to the police can not stop yet.

The advantage that this utility model compared with prior art has is: sensor of the present utility model (special glass plate) can cover the exhausted most area in a front, thereby the robber is had no way of doing it.This device of vibrations for the normal switch door does not have reflection fully, and just as the simple glass door and window opens and closes, glass can be not broken, thereby good reliability can not produce false alarm.In addition, when being subjected to strong destruction, glass plate is destroyed prior to the door body, thereby need not wait until that damaged just warning has taken place a body, thereby safety is higher.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof

Fig. 1 is the front view of this warning security door.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the special glass composition that hardens.

Fig. 4 is the electronic circuit schematic diagram.

Fig. 1 has represented in common security door (1) front, near the periphery place, has fixed four one slide rails (3), by slide rail special glass plate (2) and door body is contained on the front abreast.There is tapered end hole (4) that tapered end is exposed on the special glass plate, so that owner unblanks.

Fig. 2 has represented in the situation that Figure 1A-analyse and observe the A position.Language alarm loudspeaker (5) are fixed on behind the door, by the opening on the door chimes of doom are spread out of.Electronic circuit board and reserve battery are assembled in the case (6), also are fixed on behind the door.The lockset of common security door (7) is constant.Between special glass plate and door body, be lined with felt pad (8).

Fig. 3 has represented the structure of special glass plate, has sprayed one deck electrocondution slurry (available carbon ink powder and varnish blending form) in the one side of common 3 millimeters sheet glass (9), and has made electrocondution slurry form circuitous continuous conductive path (10).Respectively draw a wire (11), (12) in the two ends of this path.

Fig. 4 has represented the principle of electronic circuit, conductive path lead-out wire (11), (12) are connected on F in the circuit, E 2 points respectively on the special glass plate, controllable silicon (13) is in cut-off state at ordinary times, language alarm loudspeaker (5) are sounding not, when the special glass plate breaks when causing conductive path on it to open circuit, then triode ends, the controllable silicon conducting, thus alarming horn sends chimes of doom.This circuit by civil power 220Y through transformer B step-down, full-bridge rectification, capacitor C filtering obtains 12 volts of direct current supplys.When civil power just often, not conducting of crystal diode D, and when civil power disconnects, the D conducting, battery pack continues to keep power supply.As embodiment, C is 3300 μ/25V; Resistance R 1, resistance R 2 are 470K Ω; Transistor Q model is 9013; The controllable silicon model is C1068; Language alarm loudspeaker model is SR8803A (finished product).

Claims (2)

1, a kind of by common security door, electronic circuit, a kind of anti-theft alarm door that breaks that the language alarm loudspeaker are formed, it is characterized in that: front in common security door (1), installed special glass plate (2) additional by means of peripheral four one slide rails (3), special glass plate (2) is constituted by ordinary plate glass (9) with attached to the electrocondution slurry on this sheet glass, these electrocondution slurries form circuitous continuous conduction path (10) on this glass pane surface, the two ends of conductive path (10) is drawn electric wire (11), (12) link with an interior electronic circuit board, the one side that conductive path arranged on the special glass plate and separates a conductive path and a door body with a felt pad (8) inwardly.

2, a kind of anti-theft alarm door that breaks according to claim 1 is characterized in that a tapered end hole (4) is arranged on the special glass plate (2).

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