What is the role of the music bird door closer? Do you have any questions about the door closer? To understand the role of the bird door closer. First of all, we have to talk about fire doors. The material of the fire door is qualified according to the new version of the national standard GB_129552008, fire door fire test method, and obtained the verification certificate and authorization mark issued by the Standards Inspection Bureau of the Ministry of Economic Affairs. It is called the fire door, no matter what material it is made of. As long as the fire test is carried out by the state, it is a fire door.
The switch state of the fire door, where people often come in and out, is usually a normally open fire door. In the case of non-human control, it is often open; the place where few people enter and exit, usually the normally closed fire door, when not opened manually It appears to be off.
The role of fire doors in high-rise buildings is mainly that in the event of a fire, the fire doors can isolate the fire source, slow down the spread of fire, and win time for disaster relief. However, in the event of a fire, only the fire door is closed, so as to isolate the fire source, but if the fire door is open when the fire occurs, or the fire door is broken, the relevant personnel do not know, and can not go If the man is closed, the fire door will not play a corresponding role, and its existence will be meaningless. How to solve this problem?
According to the market demand, Le Bird has successfully developed the corresponding product of this problem: fire door electric door closer. The structure of the music bird door closer is relatively complicated. The whole body is composed of nearly 60 kinds of components, which can be mainly divided into outer casing, spring, ratchet, electromagnet, rotating arm, guide rail, etc., among which the connecting rod and the paddle.
Since its inception, Le Bird has been focusing on the development and manufacture of door closers, leading the market trend. With more than 15% of employees engaged in R&D and innovation, Le Bird has been researched and explored in the field of door closers. With rich experience, the products developed are sold well all over the world and have been highly recognized by the market. At present, Le Bird has received nearly 100 domestic and foreign specialties and has been rated as a national high-tech enterprise.
With the bird door electric door closer, you can stop the fire from spreading at a critical moment in the fire, gain time for fire rescue, and make the trapped people relatively safe.
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