CN201166894Y

CN201166894Y - Anti-theft alarm device

Info

Publication number: CN201166894Y
Application number: CNU2008200435554U
Authority: CN
Inventors: 白明进
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-29
Filing date: 2008-01-29
Publication date: 2008-12-17
Anticipated expiration: 2018-01-29

Abstract

The utility model discloses a burglar alarm which comprises a transformer, a plurality of contactors, a plurality of contact switches, a remote switch, a remote control, an acousto-optic annunciator and a plurality of joining wires. In a control circuit, windings of the contactors are connected in series with the contact switches singly and then the series lines are connected in parallel; normally open contacts of the contactors are connected in parallel and then the parallel lines are connected in series with the acousto-optic annunciator to form a main circuit; a signal receiver device is arranged on the remote switch; the signal transmitter device, an opening key and a closing key are arranged on the remote control; the contact switches are arranged at a door-window closure part. The burglar alarm has the advantages that the structure is simple, the use is convenient, the price is low, and the theftproof effect is good; the burglar alarm is suitable for being used by common public families and is beneficial to prevent the family property from losing.

Description

Burglar alarm

Technical field

The utility model relates to a kind of anti-theft device, relates in particular to a kind of home-use burglar alarm that is applicable to.

Background technology

The product of home security aspect is many on the market; but mostly be complex structure; expensive product; be difficult to spread to average family; thereby usable range and influence are limited, if can develop a kind of simple in structure, low-cost home security product; be fit to average family and use, will help protecting the property safety of family more.

The utility model content

The purpose of utility model is, overcomes the above-mentioned defective of prior art, provides a kind of simple in structure, and is convenient suitable, home-use burglar alarm with low cost.

For achieving the above object, the technical scheme that the utility model provides is as follows: construct a kind of burglar alarm, comprise a transformer, some contactors, some contact switchs, one teleswitch, one telepilot, one audible-visual annunciator, some connection leads, described control loop by the coil of some contactors with in parallel again after some contact switchs are connected separately, be composed in series with audible-visual annunciator again after the normally opened contact parallel connection of described main line by some contactors, described teleswitch is provided with signal receiver device, described telepilot is provided with the signal projector device, key point and key, described contact switch are installed in the closed place of door and window.

Principle of work of the present utility model is: above-mentioned circuit is connected the secondary circuit of contactor, selects to install the concrete contactor of this burglar alarm and the contact switch of equivalent according to family's needs, contact switch is installed in door, the closed place of window.When owner leaves home to go out, with door, window is closed, open power of transformer, after owner leaves home to go out, the duty of the telepilot carried is adjusted to " opening ", at this moment, contact switch is forced into normally open by original normally off, control circuit is in off state, if there is the people illegally to enter into family from door or window, the contact switch of corresponding door or window will be transformed into normally off by original normally opened contact, control circuit is connected, contactor coil gets electric, and the contactor normally opened contact of main line becomes normally closed contact, and main line is connected, audible-visual annunciator work, send the sound and light alarm signal, the robber is frightened away, thereby reach the warning purpose.Because the contact switch and the contactor coil of each door and window of this warning circuit all are in state in parallel, therefore, as long as arbitrary door and window is opened, audible-visual annunciator can both in time be reported to the police.When owner returned to home, the duty with telepilot was adjusted into " pass " earlier, opens door and window again, and the control circuit of audible-visual annunciator all is in off state, can not send the sound and light alarm signal.

Usefulness of the present utility model is that simple in structure, easy to use, cheap, good anti-theft effect is fit to ordinary populace family and uses, and helps protecting family's property not lost.

Description of drawings

Fig. 1 is circuit theory diagrams of the present utility model;

Fig. 2 is teleswitch of the present utility model and telepilot structural representation;

Fig. 3 is the scheme of installation of contact switch of the present utility model.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, be further described with regard to the technical scheme of burglar alarm described in the utility model.

Consult Fig. 1, a kind of burglar alarm, comprise transformer 10, the first contactor KM1, the first contact switch SA, the second contactor KM2, the first contact switch SB, teleswitch 20, telepilot 30, one audible-visual annunciator 40, some connection leads 50, the back formation closed control loop of connect with teleswitch 20 again after the coil of the coil of this first contactor KM1 and first contact switch SA series connection back and the second contactor KM2 and the second contact switch SB parallel connection, after the normally opened contact of this first contactor KM1 and the normally opened contact parallel connection of the second contactor KM2 with audible-visual annunciator 40 composition main lines.

Consult Fig. 2, this teleswitch 20 is provided with signal receiver device 22, and this telepilot 30 is provided with signal projector device 32, key point 34, crucial 3.

Consult Fig. 3, this contact switch SA is installed in doorframe and the closed place of door.

Above-described only is principle of the present utility model and preferred embodiment.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, also should be considered as belonging to protection domain of the present utility model.

Claims

1, a kind of burglar alarm, comprise a transformer, some contactors, some contact switchs, a teleswitch, a telepilot, an audible-visual annunciator, some connection leads, it is characterized in that: described control loop, is composed in series with audible-visual annunciator after the normally opened contact parallel connection of described main line by some contactors with in parallel again after some contact switchs are connected separately by the coil of some contactors again.

2, burglar alarm according to claim 1, body the spy be: described teleswitch is provided with signal receiver device.

3, burglar alarm according to claim 1, body the spy be: described telepilot is provided with signal projector device, key point and key.

4, burglar alarm according to claim 1, body the spy be: described contact switch is installed in the closed place of door and window.