Automatically-closed fireproof door

Abstract

The invention discloses an automatically-closed fireproof door. The automatically-closed fireproof door comprises a fireproof door frame, a fireproof door body, a fireproof door closer main body and a temperature control positioning automatic release device. The fireproof door body and the fireproof door frame are hinged through a fireproof hinge. The fireproof door closer main body is located on the upper portion of the fireproof door body and connected with one end of the temperature control positioning automatic release device through a second door closer connecting rod. The other end of the temperature control positioning automatic release device is connected with the fireproof door frame through a first door closer connecting rod. The temperature control positioning automatic release device is composed of a guide column, a positioning shifting fork, a spring, a swinging arm, a positioning pin, a swinging supporting column and a temperature sensing glass ball. The fireproof door body is further provided with a fireproof cat eye, a fireproof door handle and an adsorption device. The automatically-closed fireproof door is light in weight and convenient to install; the fireproof door can be automatically closed when a fire disaster occurs suddenly, and escape is convenient; and in addition, absorption treatment can be effectively conducted on the fire behavior as well as toxic and harmful gas, smog, dust and other impurity particles produced in the fire disaster, so that refuge personnel are protected, suffocation is avoided, and safe escape is achieved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to an automatically closing fire door. Background technique [0002] The main purpose of the fire door is to prevent the fire from spreading in the event of a sudden fire. At present, metal is used as the main material of fire doors, and the quality is relatively heavy, which brings a lot of inconvenience during installation and use; moreover, most fire doors on the market will be equipped with door closers, and there are two types of door closers: non-positioning type and positioning type. The non-positioning type ensures the normally closed state of fire doors and windows, the positioning type ensures the normally open state of ventilation, the non-positioning type is inconvenient for ventilation and passage in the daily non-fire state, and the positioning type requires manual removal when a fire occurs Closing the fire doors is inconvenient, and neither of these two types of do...

AI Technical Summary

Problems solved by technology

At present, metal is used as the main material of fire doors, and the quality is relatively heavy, which brings a lot of inconvenience during installation and use; moreover, most fire doors on the market will be equipped with door closers, and there are two types of door closers: non-positioning type and positioning type. The non-positioning type ensures the normally closed state of fire doors and windows, the positioning type ensures the normally open state of ventilation, the non-positioning type is inconvenient for ventilation and passage in the daily non-fire state, and the positioning type requires manual removal when a fire occurs Inconvenience in closing fire doors, neither of these door closers are adequate in existing buildings

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