西安鼎兴自控工程有限公司

< )r, an overview
: r, the civil air defense call button is a device used outside the shelter bunker during wartime to communicate with the inside of the bunker. Together with the ventilation mode signal light box and the ventilation mode signal control box, it constitutes a civil air defense system.
: r , )2 Product Performance
: r , The civil air defense call button product includes a base with a receiving cavity, a bell is arranged in the receiving cavity, and a lining plate is covered with the receiving cavity. On the base, a through hole is provided on the lining plate corresponding to the button of the bell. An upper cover plate with a through hole is covered on the lining plate, and a receiving groove is formed between the lining plate and the upper cover plate. The turntable is rotatably arranged in the accommodating groove and is partially exposed at the through hole of the cover plate. When the turntable rotates to an appropriate position, a through hole corresponding to the through hole on the liner is provided on the turntable. In addition, there is a handle on the outside. Since the bell is set in a shock-proof and explosion-proof base, even if there is a strong external impact, it cannot damage the electric bell, ensuring its safety. When using it, turn the handle so that the through hole on the turntable is in contact with the Corresponding through holes on the lining plate, fingers can be inserted into the base to press the button to let people inside know and open the sealed door in time.
: r , ) Composition of three products
: r , Explosion-proof button Explosion-proof button is a common protective accessory in civil air defense basement projects. It consists of the following accessories: base, bolt, bottom plate, cover plate, button It consists of several parts such as a support plate and buttons.