CN203224958U

CN203224958U - Antitheft alarm device

Info

Publication number: CN203224958U
Application number: CN 201320137544
Authority: CN
Inventors: 张敬山
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-25
Filing date: 2013-03-25
Publication date: 2013-10-02
Anticipated expiration: 2023-03-25

Abstract

The utility model discloses an antitheft alarm device, comprising a power supply, an alarm, and a power switch, wherein the power supply, the alarm, and the power switch are connected in series in a circuit loop; the circuit loop is also provided with a fixed contact and a movable contact which are connected in series; the fixed contact is arranged on a door frame; the movable contact is fixedly arranged on a door leaf; the movable contact is also provided with a reset spring. According to the utility model, a common antitheft door is additionally provided with the alarm device and the alarm is triggered to make a noise immediately when a non-family member opens a door, so that a thief is prompted to give up stealing after being shocked and people can hear the prompting noised timely to adopt measures to prevent from being stolen. The antitheft alarm device is simple in structure, low in production and manufacture cost, suitable for general families, convenient to use and install, and capable of preventing unnecessary alarming and guaranteeing the accuracy of the alarming.

Description

Burglar alarm

Technical field

The utility model relates to a kind of safety feature, particularly a kind of burglar alarm for family.

Background technology

At present a lot of families all adopt the antitheft and protection household safe of antitheft door; antitheft door commonly used adopts comparatively firm material to make; but such antitheft door function singleness; can't realize initiatively reporting to the police, in case the family no one, the thief can make havoc of antitheft door and reach the purpose that arrives steathily; and the security personnel of the residential quarter of life can't accomplish to monitor whenever and wherever possible; cause many families that the stolen time takes place, family's property suffers a loss, and normal life is hit.

Summary of the invention

In order to overcome above-mentioned defective, the utility model provides a kind of burglar alarm that can open the door and namely report to the police.

The utility model for the technical scheme that solves its technical matters and adopt is: a kind of burglar alarm, comprise power supply, alarm and power switch, described power supply, alarm and power switch are connected on the circuit loop, also be provided with in the described circuit loop and be in series with fixed contact and armature contact, and fixed contact is arranged on the doorframe, armature contact is fixedly installed on the door leaf, and armature contact also is provided with a back-moving spring.

As further improvement of the utility model, also be provided with isolating switch on the described door leaf, described isolating switch is the dead bolt of door leaf.

As further improvement of the utility model, described power supply is direct current or AC power.

The beneficial effects of the utility model are: the utility model is at common antitheft the warning device that adds, make that can touch alarm at once when non-kinsfolk opens sounds, make the burglar behind scaring, abandon larceny, make also people in time to hear to remind and take measures to prevent stolen that this apparatus structure is simple, and is easy to install and use, can avoid unnecessary warning, guarantee the accuracy of warning, it is low to manufacture cost, is applicable to average family.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the utility model, does not constitute the restriction to the utility model protection domain.

Fig. 1 shows a kind of embodiment of a kind of burglar alarm of the utility model, comprise power supply 1, alarm 2 and power switch 3, described power supply 1, alarm 2 and power switch 3 are connected on the circuit loop, also be provided with in the described circuit loop and be in series with fixed contact 4 and armature contact 5, and fixed contact 4 is arranged on the doorframe, armature contact 5 is fixedly installed on the door leaf, armature contact 5 also is provided with a back-moving spring 6, also be provided with isolating switch 7 on the described door leaf, described isolating switch 7 is the dead bolt of door leaf, and described power supply 1 is direct current or AC power.

When door leaf was shut, armature contact 5 was away from fixed contact 4, when opening the door, armature contact 5 under back-moving spring 6 effects with fixed contact 4 closures, alarm 2 will sound, and power switch 3 is set just can avoids unnecessary warning.

Claims

1. burglar alarm, it is characterized in that: comprise power supply (1), alarm (2) and power switch (3), described power supply (1), alarm (2) and power switch (3) are connected on the circuit loop, also be provided with in the described circuit loop and be in series with fixed contact (4) and armature contact (5), and fixed contact (4) is arranged on the doorframe, armature contact (5) is fixedly installed on the door leaf, and armature contact (5) also is provided with a back-moving spring (6).

2. burglar alarm according to claim 1, it is characterized in that: also be provided with isolating switch (7) on the described door leaf, described isolating switch (7) is the dead bolt of door leaf.

3. burglar alarm according to claim 1 is characterized in that: described power supply (1) is direct current or AC power.