CN201166894Y - Anti-theft alarm device - Google Patents

Abstract

The utility model discloses the sky has opened an burglar alarm, including a transformer, a plurality of contactors, a plurality of contact switch, a remote control switch, a remote controller, an audible-visual annunciator, a plurality of connecting wire, the control circuit is parallelly connected again after establishing ties alone by the coil of a plurality of contactors and a plurality of contact switch, the line is established ties with audible-visual annunciator again after being parallelly connected by the normally open contact of a plurality of contactors and is constituteed, remote control switch is equipped with the signal receiver device, the remote controller is equipped with signal transmitter device, open key and key, contact switch installs in door and window closed department. The utility model has the advantages of simple structure, convenient to use, the low price, it is effectual to prevent burglary, is fit for ordinary masses family and uses, is favorable to protecting the family property and does not lose.

Description

Anti-theft alarm device

technical field

The utility model relates to an anti-theft device, in particular to an anti-theft alarm device suitable for household use.

Background technique

There are many anti-theft products on the market, but most of them are complex and expensive products, which are difficult to popularize in ordinary families, so the scope of use and influence are limited. If a family anti-theft product with simple structure and low price can be developed , suitable for ordinary family use, will be more conducive to the protection of family property safety.

Utility model content

The purpose of the utility model is to overcome the above-mentioned defects of the prior art, and provide a simple in structure, convenient and applicable, and a low-cost household anti-theft alarm device.

In order to achieve the above object, the technical solution provided by the utility model is as follows: a kind of anti-theft alarm device is constructed, including a transformer, several contactors, several contact switches, a remote control switch, a remote controller, an audible light alarm, several connecting wires , the control circuit is composed of coils of several contactors connected in series with several contact switches and then connected in parallel; There is a signal receiver device, the remote controller is provided with a signal transmitter device, an open key and a key, and the contact switch is installed at the closed place of the door and window.

The working principle of the utility model is: connect the above-mentioned line to the secondary circuit of the contactor, select and install the specific contactor and the equivalent contact switch of the anti-theft alarm device according to the needs of the family, and install the contact switch on the door, window, etc. closure. When the owner goes out from home, close the doors and windows, turn on the power of the transformer, and adjust the working state of the remote controller to "on" after the owner leaves home. At this time, the contact switch is changed from the original normally closed The state is forced into a normally open state, and the control circuit is in an open circuit state. If someone illegally enters the home from a door or window, the corresponding door or window contact switch will change from the original normally open contact to a normally closed state, and the control circuit will When it is turned on, the contactor coil is energized, the normally open contact of the contactor of the main line becomes a normally closed contact, the main line is connected, the sound and light alarm works, and the sound and light alarm signal is sent out to scare away the thieves, thereby achieving an alarm. Purpose. Because the contact switches and contactor coils of the doors and windows of the alarm circuit are all in parallel state, therefore, as long as any door and window is opened, the sound and light alarm can give an alarm in time. When the owner returns home, he first adjusts the working state of the remote controller to "off", and then opens the doors and windows. The control circuit of the sound and light alarm is in an open circuit state, and no sound and light alarm signal will be sent.

The utility model has the advantages of simple structure, convenient use, low price and good anti-theft effect, which is suitable for ordinary people's families and helps to protect family property from loss.

Description of drawings

Fig. 1 is a schematic circuit diagram of the utility model;

Fig. 2 is a structural schematic diagram of a remote control switch and a remote controller of the present invention;

Fig. 3 is a schematic diagram of installation of the contact switch of the present invention.

Detailed ways

Below in combination with the accompanying drawings and preferred embodiments, the technical solution of the anti-theft alarm device described in the utility model will be further described.

Referring to Fig. 1, an anti-theft alarm device includes a transformer 10, a first contactor KM1, a first contact switch SA, a second contactor KM2, a first contact switch SB, a remote control switch 20, a remote control 30, an acoustic light Alarm 40, a number of connecting wires 50, the coil of the first contactor KM1 is connected in series with the first contact switch SA, connected in parallel with the coil of the second contactor KM2 and the second contact switch SB, and then connected in series with the remote control switch 20 A closed control loop is formed, and the normally open contact of the first contactor KM1 and the normally open contact of the second contactor KM2 are connected in parallel to form a main line with the sound and light alarm 40 .

Referring to FIG. 2 , the remote control switch 20 is provided with a signal receiver device 22 , and the remote controller 30 is provided with a signal transmitter device 32 , an open key 34 , and a key 3 .

Referring to Fig. 3, the contact switch SA is installed at the door frame and door closure.

What has been described above is only the principle and preferred embodiments of the present utility model. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the principle of the utility model, which should also be regarded as belonging to the protection scope of the utility model.

Claims (4)

1. An anti-theft alarm device, comprising a transformer, several contactors, several contact switches, a remote control switch, a remote controller, an audible light alarm, some connecting wires, characterized in that: the control loop is composed of several contactors The coil is connected in series with several contact switches and then connected in parallel. The main line is composed of normally open contacts of several contactors connected in parallel and then connected in series with the sound and light alarm. 2. The anti-theft alarm device according to claim 1, characterized in that: the remote control switch is provided with a signal receiver device. 3. The anti-theft alarm device according to claim 1, characterized in that: the remote controller is provided with a signal transmitter device, an open key and a key. 4. The anti-theft alarm device according to claim 1, characterized in that: the contact switch is installed at the closing place of the door and window.

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