Unclosed door alarm device based on elastic force generation condition

Abstract

The invention relates to a device capable of giving out an alarm if a door is not closed. As a buffer material is adhered to a door frame, people think that a door is locked when the door is not locked actually sometimes. To overcome the defects of the prior art, the invention discloses an unclosed door alarm device based on elastic force generation conditions. By adopting the unclosed door alarm device, an alarm can be given out when the door is not well closed. According to the technical scheme for solving the technical problem, a track is confirmed by a fixed shaft cylinder, a jacking rod and a driving rod are adopted as a sliding mechanism, a first contact and a second contact are adopted as a triggering mechanism, a reset mechanism consisting of a spring, a connecting ring and a jacking piece can enable a circuit to work if the door is not well closed, and then alarm sound can be produced.

Description

[0001] This application is a divisional application of the invention application with the application number 2013102909230, the application date: July 11, 2013, and the invention titled "An Unclosed Door Alarm Device Based on Elastic Force Generation Conditions". technical field [0002] The invention relates to an alarm device, in particular to an alarm device under the condition that a household door is not closed tightly. Background technique [0003] Security doors are very popular now. Security doors are usually made of steel and have a certain anti-theft effect. In order to prevent excessive collision between the door and the door frame, the door frame is covered with cushioning materials, such as layered sponges, and rubber skins. Thus, such a problem arises: when closing the door, because the force is not strong enough, the door is only in contact with the cushioning material, the cushioning material is not fully deformed, and the door is actually not locked, but the ...

AI Technical Summary

Problems solved by technology

Therefore, such a problem arises: when closing the door, because the strength is not strong enough, the door is only in contact with the cushioning material, the cushioning material is not fully deformed, and the door is actually not locked, but the owner thinks it is locked.

Someone made an alarm device that the door is not closed by using a magnet to attract the armature. However, such an alarm device is prone to false alarms. That is because the distance from which the magnet attracts the armature is a relatively large range, so it is easy to cause false alarms.

[0004] There is also an alarm device, which is controlled by a photoelectric door (also called an optocoupler), which has a disadvantage: no matter what state the door is in, it always consumes power

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