TWM650920U - Fire door structure with double door leaves that open and close at 270 degrees - Google Patents

Abstract

A fire door structure with double door leaves that open and close at 270 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, which are fixed at the entrance and exit of the building. perimeter; two door shaft columns are symmetrically arranged in front of the two vertical edges of the aforementioned two frames, and sky hinges and ground hinges are provided on the door shaft columns; the two door leaves are symmetrically arranged on the inside of the two door shaft columns, and are respectively pivotally connected to The sky hinge and the ground hinge enable the door leaf to rotate 90∘ inward and 180∘ outward relative to the entrance and exit of the aforementioned passage. There is an intermediate shutter on the movable opening side of the door leaf, and the door leaf is made of fireproof and heat-resistant materials. According to this, the door leaf of the fire door can be opened at a large angle in both directions, both inward and outward, to facilitate the passage of people and rapid escape in the event of a fire.

Description

Fire door structure with double door leaves that open and close at 270 degrees

This invention relates to a double door structure, especially a fire door structure with double door leaves that can open and close at 270° 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, and the opening and closing rotation angle of the door leaves can only be in the range of approximately 90°~180°. Therefore, if the installation position of the fire door is at the intersection of a two-way channel or a three-way channel Sometimes, due to the limited opening degree of the fire door, it is often impossible to open it until it is close to the wall, causing the problem of blocking other passages. More importantly, when a fire breaks out, people are panicking to escape, and the escape route and direction are often required. Appropriate corrections should be made based on 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 people, causing the obstruction of escape and seriously affecting life safety. There is a need for improvement; in addition, general fire doors The door panels are quite thick. In order to avoid interference when the door panel is opened and closed, the gap between the door leaf and the door frame must be enlarged. This will not only reduce the sound insulation effect, but also fail to achieve the purpose of smoke and fire prevention, causing safety problems. Hazards; the above-mentioned deficiencies, especially those caused by larger door structures such as double-leaf fire doors, are more serious and need to be improved urgently.

In view of the shortcomings of the conventional fire door structure, this invention provides a double door leaf that can be opened 270 degrees The fire door structure has two-way opening and closing functions inside and outside; the door leaf of this fire door can be opened at a wide angle in both directions on the inside and outside to facilitate the passage of people, and the gap between the door leaves can be tightly closed and sealed, with sound insulation and dustproof performance. ; When a fire occurs, the structural design of the fire door opens in all directions without dead ends to ensure smooth escape passages and allow people to escape smoothly. The gaps between the door leaves are tightly closed and sealed, which can effectively block flames, shield heat or smoke from intruding into the room, and protect the fire door. Safety for people inside.

In order to achieve the above purpose, this invention provides a fire door structure with double door leaves that can be opened and closed at 270 degrees, which includes: a door frame structure, which has a frame top edge and two frame vertical edges, and the door frame structure is fixed on the building. The periphery of the entrance and exit of the passage; two door shafts, which are respectively arranged in front of the two vertical edges of the frame. A day hinge is provided at the upper end of the door shaft, and the base of the day hinge is fixed on the top edge of the frame. , 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 270°; and 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 180° 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.

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

12a:Outer side

12b:Inner end face

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 allows the integral door frame structure to be fixed on the periphery of the passage entrance and exit of the building; the two door axis columns 2 are symmetrically arranged in front of the two aforementioned frame vertical edges 12, and the door axis pillar 2 can be connected with the frame vertical edge 12 It can be fixed by welding or combined with the door leaf 3. A day hinge 21 is provided at the upper end of the door shaft column 2. The base 211 of the day hinge is fixed on the top edge 11 of the aforementioned frame. A day hinge 21 is provided at the lower end of the door shaft column 2. A ground hinge 22, the base 221 of the ground 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 270°; two door leaves 3 are symmetrically arranged on the left and right sides of the aforementioned door. Inside the 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. , it is equipped with fire-proof and heat-insulating materials inside, and the door leaf 3 and the door shaft column 2 are closely connected, and an outwardly extending middle cover 31 is provided on the movable edge of the door leaf 3, thereby forming a fire-proof Thermal isolation interface can slow down the heat conduction between the inner and outer sides of the door structure when a fire occurs, 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. From the outer side 12a of 12 or the outer side of the wall, the outward opening angle of the door leaf 3 can reach approximately 180°. When the door leaf 3 is opened to the inner side (Indoor), the maximum opening range of the door leaf 3 will reach the door frame. From the inner end face 12b of the frame edge 12 of the frame 1 or the inner end face of the wall, 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 arbitrarily opened in both directions inward or outward. It can be opened at a large angle, with a total opening angle of up to 270°, which facilitates the passage of people and can tightly seal the gaps between the door leaves to achieve sound insulation and dust prevention. When a fire occurs, the fire door has a structural design that can be opened in all directions without dead corners. , ensure that the escape passage is unobstructed, allowing people to escape smoothly, and tightly seal the gaps 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.

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

12a:Outer side

12b:Inner end face

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 270 degrees, including: A door frame structure, which has a frame top edge and two frame vertical edges, 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 arranged in front of the two vertical sides of the frame. A day hinge is provided at the upper end of the door shaft column. The base of the day hinge is fixed on the top edge of the frame. On the door shaft A ground hinge is provided at the lower end of the 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 270∘; and 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 Relative to the entrance and exit of the passage, it is rotated inward by 90∘ and outward by 180∘, 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 that can be opened and closed at 270 degrees according to claim 1, wherein the door shaft column and the frame vertical edge of the door frame structure are fixed integrally. The fire door structure with double door leaves opening and closing at 270 degrees according to claim 1, wherein the door shaft column and the door leaf are integrated into one body.