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What are the characteristics of Shandong Xinming civil defense door equipment? First of all, what is a civil air defense door
When talking about civil air defense alone, many of our friends may think of the word civil defense, and indeed this is the case in the civil air defense doors we are going to talk about today. That is what civil defense means. The so-called civil air defense doors are civil defense protective equipment used by the government when carrying out certain rescue operations. Let’s take a closer look at the classifications of civil air defense doors and their characteristics.
Classification of Civil Defense Doors
Speaking of the types of civil defense doors, there are many. Today we will mainly introduce the most commonly used types of civil defense doors. Let’s take a look.
Type 1 of civil air defense doors: Ordinary single and double-leaf protective airtight doors and airtight doors
Ordinary single and double-leaf protective airtight doors and airtight doors are the most widely used. Their structures are very simple and maintenance is also very convenient. This type of door is used at the exits of various civil air defense projects, but it also has certain disadvantages, that is, its threshold is fixed and is not very practical for places where vehicles often frequent.
Civil air defense door type two: single sill, double-leaf protective closed door and airtight door
The application of single sill, double-leaf protective closed door and airtight door is also quite wide, and it makes up for the ordinary Single and double-leaf protective airtight doors and airtight doors have the disadvantage of being inconvenient for vehicle passage. Single and double-leaf protective airtight doors and airtight doors have sills that are usually not installed. This makes it more convenient for pedestrians and vehicles only in certain circumstances. Only then will the threshold be installed to provide protection and sealing functions.
Type three of civil air defense doors: Drop-type double-leaf protective airtight doors and airtight doors
Drop-type double-leaf protective airtight doors and airtight doors are also very convenient. Usually, there is no threshold on the ground for the convenience of pedestrians and vehicles. In wartime, the door leaves will be raised, lowered, or moved horizontally to meet the requirements of closure. Its biggest feature is that there are small doors to facilitate some people who need to travel temporarily.