Inward-opened type fireproof window

Abstract

The invention discloses an inward-opened type fireproof window. The inward-opened type fireproof window comprises a fixed frame and an overturning frame connected in an inward-overturning mode relative to the fixed frame. Spring hinges for driving the overturning frame to be closed are arranged between the fixed frame and the overturning frame. At least one sliding supporting assembly is arranged between the fixed frame and the overturning frame. Each sliding supporting assembly comprises an outer sleeve rod rotatably connected to the fixed frame and an inner sleeve rod rotatably connected to the overturning frame. Each outer sleeve rod is provided with a sliding groove for sliding of the corresponding inner sleeve rod. The sliding groove in each outer sleeve rod is internally rotatably connected with a locking block which is of an X-shaped structure, and the outer edge of each locking block is provided with a plurality of clamp feet. Each inner sleeve rod is provided with a clamping groove allowing the clamp feet of the corresponding locking block to be clamped in. Each outer sleeve rod is provided with a movable groove allowing the corresponding clamp feet to extent out when the corresponding locking block rotates. Each inner sleeve rod is provided with a push block for pushing the corresponding locking block to rotate. Each locking block internally comprises a temperature sensing change piece, and after the temperature sensing change pieces deform, the clamp feet of the locking blocks and the clamping grooves get separated from each other to be not clamped together.

Description

technical field [0001] The invention relates to the field of fireproof windows, in particular to an inward opening type fireproof window. Background technique [0002] According to 5.5.32 of the GB50016-2014 "Code for Fire Protection Design of Buildings" implemented on May 1, 2015, for residential buildings with a building height greater than 54m, each household should have a room that meets the following requirements: 1. It should be installed against the outer wall, and should be 2. The fire resistance rating of the inner and outer walls should not be lower than 1.00h. The door of the room should be a Class B fire door, and the outer window should be a fireproof window with a fire integrity of not less than 1.00h. That is to say, in high-rise residential buildings, each household in a building with more than 18 floors needs to design a refuge room. In order to meet the needs, the refuge room must be installed with Class B fireproof windows. Increased fire integrity requir...

AI Technical Summary

Problems solved by technology

[0004] The structure of the fire-proof windows in the prior art is similar to the above-mentioned scheme, especially the inward-opening fire-proof windows, which must be closed manually in the event of a fire; and the fire-proof windows in the refuge room actually need to be closed in time to achieve fire prevention and smoke prevention. Therefore, there are certain potential safety hazards in the simple manual closing method.

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