CN2630962Y - Antitheft bell - Google Patents

Abstract

The utility model relates to an anti-theft device, which consist of a coat and a circuit. The device is characterized in that the circuit is a closed circuit composed by battery E[1] and E[2], power switch K[1], ringer[8], first-off and second-closed switch K[3], moving-close switch K[2]. The second-closed end of the switch K[3] is connected to the connecting points of E[1] and E[2]. The first-off end of the switch K[3] is connected to the moving-close switch K[2]. A wedge 5 and a trigger line 4 are provided for moving-close switch K[2]. The device is characterized as simple structure, small size, easy installation, convenient to conceal and take, difficult to cut off the power supply, high reliability, low cost and so on, which is suitable for families, guesthouse and countryside orchard to guard against the theft.

Description

Anti-robbery bell

Technical field: the utility model relates to a kind of electric anti-thief device.

Technical background: existing anti-theft product mainly contains infrared acquisition and reports to the police, contact is reported to the police, polytypes such as induction type warning, problems such as these products have complex structure, cost is higher, power supply easily is cut off, inconvenience is carried, bad adaptability are for general home security, antitheft, antitheft little being suitable in orchard, rural area of hotel guest-room.

Summary of the invention: it is very simple that the purpose of this utility model is to disclose a kind of structure, and volume is small and exquisite, and power supply is difficult for being cut off, and the reliability height is installed simple and conveniently, can carry, and wide accommodation, with low cost, be easy to the anti-robbery bell of penetration and promotion.Technical solution of the present utility model is: a kind of anti-robbery bell, to be formed by shell, the circuit that is located in the shell, and its special character is: said circuit is provided with electric battery E ₁And E ₂, electric battery E ₁An end be connected with power switch K ₁, at power switch K ₁Output terminal be connected with electric bell, be connected to the make and break of having no progeny earlier that produces interlock by electric bell vibration at another incoming end of electric bell and close K ₃, K switch ₃Back closed end and electric battery E ₁, E ₂Tie point link to each other K ₃The first broken ends of fractured bone and E ₂Be connected with the moving trigger switch K that closes between the positive pole ₂, K switch ₂Is furnished with the rope of triggering 4.

The utility model has been owing to adopted above technical scheme, has simple in structurely, and volume is small and exquisite, and is easy for installation, is convenient to hidden, power supply and is difficult to be cut off, good reliability, wide accommodation, advantage such as production cost is low.

Description of drawings: accompanying drawing 1 is a contour structures synoptic diagram of the present utility model, and accompanying drawing 2 is an electrical block diagram of the present utility model, and accompanying drawing 3 is electric bell of the present utility model and K switch ₃The linkage structure synoptic diagram.

Embodiment: below in conjunction with accompanying drawing the utility model is further described, embodiment as shown in drawings, a kind of anti-robbery bell has shell 1 and circuit 2, is provided with power switch K on shell 1 ₁, power light 3 and reset button 7, the top of shell 1 is provided with hole 6, leads to lead 9 in a side of shell in shell, is connected with the moving trigger switch K that closes in the end of lead 9 ₂, K switch ₂Can be the spring-piece type normally closed switch, in use, insert and trigger chock 5 that chock 5 is connected with and triggers rope 4.K switch ₂Also can be directly arranged in the latch the inside of door.Circuit 2 is provided with electric battery E ₁, E ₂, E ₁Negative pole by power switch K ₁Link to each other with the negative pole end of electric bell, the positive terminal of electric bell closes K with the make and break of having no progeny earlier ₃Link to each other K switch ₃Back closed end and E ₁, E ₂Tie point links to each other, K ₃The first broken ends of fractured bone and K ₂Link to each other, simultaneously E ₂Positive pole also with K switch ₂Link to each other, at K ₁Right part and E ₁Be provided with light emitting diode 10 between the positive pole, electric bell 8 general employing crystal clock electric bells, and be installed in the top of shell 1 electric battery E ₁, E ₂All adopt No. 5 batteries of 2 joints to be installed in the bottom of shell, E is set ₂Purpose be exactly in order to prevent that outer lead 9 from because of the consumption of long distance to electric power, guaranteeing the normal startup of electric bell.K switch ₃Both can adopt electronic switch, and also can adopt elastic sheet switch, if adopt the spring-piece type switch, the quiet end shell fragment 13 of switch connects electric bell, and moved end shell fragment 10 meets K ₂, moved end shell fragment 12 meets E ₁, E ₂Tie point, shell fragment 12 is provided with insulating trip 4.Principle of work of the present utility model is according to the situation in antitheft place, to choose the installation site, earlier with K ₂Be fixed on the place that the thief does not get, triggering chock 5 skewers that trigger line 4 are gone into K ₂Be horizontally set with on the inboard or passage of the door and window that the thief must pass through triggering line 4, the other end that perhaps will trigger line 4 is fixed on the thief and is difficult for then anti-robbery bell being placed on indoor home on discovery and the necessary door and window of opening, going on business can be placed on bedside when staying at hotels, again with K ₁The position that is in out, K ₃Be in the connection lower end position, i.e. shell fragment 10 and shell fragment 13 closures, at this moment anti-robbery bell is in the anti-theft early-warning state, in case thief's door and window triggers line and makes K switch ₂Closure, E ₁, E ₂, K ₂, K ₃, electric bell 8, K ₁Form a closed-loop path, electric bell 8 is jingle bell immediately, and the handler of electric bell at this moment is with K switch ₃Shell fragment 12 to pusher, insulating trip on the shell fragment 12 14 promotes shell fragments 10 and disconnects with shell fragment 13, meanwhile, shell fragment 12 and shell fragment 13 closures, K ₃The lower end disconnect, the middle-end closure makes the outer lead dead electricity, electric bell 8 is by E ₁Power supply is kept jingle bell anti-theft alarm is provided internally.When sounding all clear, with K ₁Be in the position of pass, press reset button 7, make shell fragment 12 and shell fragment 13 disconnect shell fragment 10 and shell fragment 13 closures, K ₃Reset to initial state.

Claims (4)

1, a kind of anti-robbery bell is provided with shell [1] and circuit [2], it is characterized in that circuit [2] is provided with electric battery E ₁, E ₂, at electric battery E ₁An end be connected with power switch K ₁, at power switch K ₁Output terminal be connected with electric bell [8], another incoming end of electric bell [8] is connected to the make and break of having no progeny earlier that produces interlock by electric bell vibration and closes K ₃, K switch ₃Back closed end connect E ₁, E ₂Mid point, K ₃The first broken ends of fractured bone and E ₂Positive pole between be connected with the moving trigger switch K that closes ₂

2, anti-robbery bell according to claim 1 is characterized in that trigger switch K ₂Is furnished with triggering line [4].

3, anti-robbery bell according to claim 2 is characterized in that trigger switch K ₂Be the spring-piece type normally closed switch, be equipped with and trigger the triggering chock [3] that line [4] links to each other.

4, anti-robbery bell according to claim 1 is characterized in that shell [1] is provided with power switch K ₁, power light [3] and K switch ₃Reset button [7], be provided with the tinkle of bells hole [6] at the top of shell [1].

Images