TWM650923U - Fire door structure with double door leaves that open and close at 180 degrees - Google Patents

Abstract

A fire door structure with double door leaves that can be opened and closed at 180 degrees, including a door frame structure, a door shaft column and two door leaves. The door frame structure has a frame top edge and two frame vertical edges, and a fitting groove is provided on the frame vertical edge. And the overall door frame structure is fixed on the periphery of the passage entrance and exit of the building; the two door shaft columns are symmetrically arranged in the fitting grooves of the two frame vertical sides, and the door shaft columns are provided with sky hinges and ground hinges. Hinge; the two door leaves are symmetrically arranged on the inside of the two door axis columns, and are pivotally connected to the sky hinge and the ground hinge respectively, so that the door leaves can rotate 90∘ inward and 90∘ outward relative to the entrance and exit of the passage. The movable opening side of the door leaf is equipped with a middle cover, and the door leaf is made of fire-resistant and heat-resistant materials. Accordingly, the door leaf of the fire door can be opened at a large angle in both directions on the inside and outside to facilitate the passage of people and the occurrence of fire. Escape quickly.

Description

Fire door structure with double door leaves that open and close at 180 degrees

This invention relates to a double door structure, especially a fire door structure with double door leaves that can open and close 180° in both directions.

Fire doors are mostly located at the entrances and exits of escape ladders or stairs. Fire doors are usually set in a normally closed state to block flames, high heat and smoke when a fire breaks out, giving people enough time to escape from the fire. According to the current structure of fire doors Design, most of its door leaves can only be opened in one direction. Therefore, if the fire door is installed in a two-way passage, it is limited by the one-way opening angle of the fire door, which often causes the problem of blocking the passage of the passage. More importantly, when a fire occurs When people are in panic trying to escape, the escape route and direction often need to be appropriately modified according to the actual conditions of the fire scene. Therefore, if the fire door can only be opened in one direction, it is likely to hinder the escape route of the people, causing serious consequences of blocked escape. There is a need to improve life safety; in addition, the door panels of general fire doors are quite thick. In order to avoid interference when the door panels are opened and closed, the remaining gap between the door leaf and the door frame must be enlarged. This will not only reduce the The sound insulation effect cannot be achieved, and the purpose of smoke isolation and fire prevention cannot be achieved, causing safety hazards; the above-mentioned deficiencies, especially in larger door structures such as double-leaf fire doors, are more serious problems and need to be improved urgently.

In view of the shortcomings of conventional fire door structures, this invention provides a fire door structure with double door leaves that can open and close at 180 degrees in both directions. The opening angle facilitates the passage of people, and can tightly seal the gaps between the door leaves, which has the effect of sound insulation and dust prevention; when a fire occurs, the structural design of the fire door opens in all directions without dead corners to ensure that the escape passage is smooth and people can safely Escape, and tightly seal the gap between the door leaves, which can effectively block flames, shield heat or smoke from intruding into the room, and protect the safety of indoor personnel.

In order to achieve the above purpose, this invention provides a fireproof door structure with double door leaves that can be opened and closed at 180 degrees, which includes: a door frame structure, which has a top edge of the frame and two vertical edges of the frame, and an inlay is provided on the inner end surface of the vertical edge of the frame. and the door frame structure is fixed on the periphery of the entrance and exit of the passage of the building; two door shaft columns are respectively symmetrically arranged in the fitting grooves of the two vertical sides of the frame, and the door shaft column A day hinge is provided at the upper end of the door, and the base of the day hinge is fixed on the top edge of the frame. A ground hinge is provided on the lower end of the door shaft column, and the base of the ground hinge is fixed on the passage. The floor of the entrance and exit, wherein the sky hinge and the ground hinge can rotate 180°; and two door leaves, which are symmetrically arranged on the inside of the two door shaft columns, and each of the door leaves is pivoted to each other. The movable link of the sky hinge and the movable link of the ground hinge enable the door leaf to rotate 90° inward and 90° outward relative to the entrance and exit of the passage, wherein when the door leaf is movable to open The sides are provided with middle shutters, and the door leaves are made of fireproof and heat-resistant materials.

Wherein, the door axis column and the frame vertical edge of the door frame structure are fixed into one body, or the door axis column and the door leaf are combined into one body.

1:Door frame structure

11: Top edge of frame

12: frame vertical edge

121:Inner end face

122: Fitting groove

2: Door axis column

21: Sky Hinge

22: Ground hinge

211, 221: base

212, 222: Movable connecting rod

3: Door leaf

31:Middle cover

Figure 1 is a schematic diagram of the front structure of this creation.

Figure 2 is a top sectional view of this creation along the II-II section of Figure 1.

Figure 3 is a schematic diagram of the opening and closing operations of the two door leaves according to Figure 2.

The accompanying drawings describe preferred embodiments of the invention. In order to provide a clearer description and make it easier to understand the technical features of the invention, the parts in the drawings are not drawn according to their relative sizes. Some sizes are different from others. Relevant scales have been exaggerated; irrelevant details have not been fully drawn in order to keep the diagram simple. In addition, in order to further illustrate the technical features of the present invention, a double-leaf fire door structure is described in the following embodiments. However, it should be understood that the implementation of the present invention is not limited to this description. For example, a single-leaf fire door structure It also falls within the scope of implementation of this creation.

As shown in Figures 1 and 2, it is a preferred embodiment of this invention, which includes: a door frame structure 1, two door shaft columns 2 and two door leaves 3; wherein, the door frame structure 1 has a frame top edge 11 and two frames The vertical edge 12 is provided with a fitting groove 122 on the inner end surface 121 of the vertical edge 12 of the frame. The integral door frame structure 1 is fixed on the periphery of the passage entrance of the building; the two door axis columns 2 are symmetrically arranged on the aforementioned In the fitting groove 122 of the two frame vertical sides 12, the door shaft column 2 can be welded and fixed to the fitting groove 122 of the frame vertical side 12, or the door shaft column 2 can be welded and fixed to the frame vertical side 12. Combined with the door leaf 3, a sky hinge 21 is provided at the upper end of the door shaft column 2. The base 211 of the sky hinge is fixed on the top edge 11 of the aforementioned frame. A ground hinge 22 is provided at the lower end of the door shaft column 2. The base 221 of the hinge is fixed on the floor of the aforementioned passage entrance and exit, wherein both the sky hinge 21 and the ground hinge 22 can rotate at least 180°; the two door leaves 3 are symmetrically arranged on the inside of the aforementioned door axis column 2. The upper end of the door leaf 3 is connected to the movable link 212 of the aforementioned sky hinge 21, and the lower end of the door leaf 3 is connected to the aforementioned movable link 222 of the ground hinge 22; wherein, the door leaf 3 is made of fireproof and heat-resistant materials, and is equipped with a Fire-proof and heat-insulating materials are used, and the door leaf 3 and the door shaft column 2 are closely connected, and an outwardly extending middle shutter 31 is provided on the movable edge of the door leaf 3, thereby forming a fire-proof and heat-insulating barrier interface. When a fire occurs, it can slow down the heat conduction between the inner and outer sides of the door structure, and prolong the time for the door structure to be damaged and deformed, achieving the purpose of fire prevention and heat insulation.

Please refer to Figure 3. According to the double-leaf fire door structure composed of the aforementioned components, when the door leaf 3 is opened to the outside (Outdoor), the maximum opening range of the door leaf 3 will reach the frame edge of the door frame structure 1. 12 to the inner end face 121, the outward opening angle of the door leaf 3 can reach approximately 90°; when the door leaf 3 is operated to open the door inward (indoor), the maximum opening range of the door leaf 3 can also reach the frame of the door frame structure 1 From the inner end face 121 of the vertical edge 12, the inward opening angle of the door leaf 3 can reach approximately 90°. Accordingly, the double-leaf fire door structure of this invention can be opened in both directions inwardly or outwardly, and the total opening angle can reach 180°. °, it facilitates the passage of people, and can tightly seal the gap between the door leaves to achieve sound insulation and dustproof performance; when a fire occurs, the structural design of the fire door can be opened in all directions without dead corners to ensure that the escape passage is smooth and people can escape smoothly. And tightly sealing the gap between the door leaves can effectively block flames, shield heat or smoke from intruding into the room, and protect the safety of indoor personnel.

The above-described embodiments are only preferred embodiments to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of this creation are within the scope of protection of this creation. The scope of protection of this creation is subject to the scope of the accompanying patent application.

12: frame vertical edge

121:Inner end face

122: Fitting groove

2: Door axis column

212: Movable connecting rod

3: Door leaf

31:Middle cover

Claims (3)

A fire door structure with double door leaves that open and close at 180 degrees, including: A door frame structure, which has a frame top edge and two frame vertical edges, a fitting groove is provided on the inner end surface of the frame vertical edge, and the door frame structure is fixed on the periphery of the passage entrance and exit of the building; Two door shaft columns are respectively symmetrically arranged in the fitting grooves of the two vertical sides of the frame. A day hinge is provided at the upper end of the door shaft column, and the base of the day hinge is fixed on the top of the frame. On the other hand, a ground hinge is provided at the lower end of the door shaft column, and the base of the ground hinge is fixed on the floor of the passage entrance and exit, wherein the sky hinge and the ground hinge can rotate 180°; as well as Two door leaves are symmetrically arranged inside the two door shaft columns, and each door leaf is pivotally connected to the movable link of the sky hinge and the movable link of the ground hinge, so that the door leaves can Rotate 90∘ inward and rotate 90∘ outward relative to the entrance and exit of the passage, wherein an intermediate shutter is provided on the movable opening side of the door leaf, and the door leaf is made of fireproof and heat-resistant materials. The fireproof door structure with double door leaves opening and closing at 180 degrees according to claim 1, wherein the door shaft column and the frame vertical edge of the door frame structure are fixed integrally. The fireproof door structure with double door leaves opening and closing at 180 degrees according to claim 1, wherein the door shaft column and the door leaf are integrated into one body.