TWM636259U - Fireproof door structure - Google Patents

Abstract

A fireproof door structure, comprising a door frame and two door leaf groups; the door frame has a slightly mouth-shaped structure and is fixed on the vertical wall of the entrance and exit, and an inner side eaves are arranged along the inner edge of the door frame; the door leaf groups are separated by a first The hinges are pivotally connected to the two side columns of the door frame, and the two door leaf groups are symmetrically arranged on the inner circumference of the door frame, wherein each door leaf group is composed of a loading frame and a door leaf, and the loading frame is in the shape of an inverted L The plate body of the shape configuration, along the inner edge of the carrier frame is provided with an outer baffle plate, the door leaf is pivotally connected to the vertical plate body part of the carrier frame by the second hinge, and the movable opening edge of the door leaf is provided There is an intermediate shutter; the door leaf of this fire door structure can be opened and closed at a large angle in both directions inside and outside, and the carrier frame and door leaf are made of fire-resistant and heat-resistant materials, which have the effect of blocking flames, dense smoke, sound insulation and airtightness.

Description

fire door construction

This work is related to the structure of fire doors, especially a fire door structure with door leaves that can be opened and closed in both directions, both inside and outside, and has sound insulation and airtight performance.

Nowadays, most of the urban population lives in high-rise buildings. Although the living functions are convenient, due to the dense population, the maintenance of public security issues will become extremely important; The building structure is prone to factors such as the chimney effect, so it often causes major damage to life and property; in order to prevent high-rise fires from causing major injuries and losses to people, it is currently common to install fire-fighting and sprinkler equipment in buildings. Fire doors and escape ladders and other devices are installed between each floor to facilitate personnel escape.

Most of the general fire doors are set at the escape ladder or the entrance and exit of the stairs. Usually, the fire doors are set in a normally closed state, so as to block flames, high heat and dense smoke when a fire occurs, and give people more time to escape from the fire. According to the current fire doors Structural design, most of the doors can only be opened in one direction, and the opening and closing rotation angle of the door leaf can only be in the range of 90゜~180゜, so if the fire door is installed at the intersection of two-way or three-way Due to the limitation of the opening degree of the fire door, it is often impossible to open it close to the wall, resulting in the problem of blocking the passage of other passages. More importantly, when a fire breaks out, people flee in panic, and the escape route and escape direction are often Appropriate corrections need to be made according to the actual situation 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 personnel, causing the obstruction of escape and seriously affecting the safety of life. It is necessary to improve; The door panels of the door are quite thick. In order to avoid interference when the door panels are opened and closed, it is necessary to increase the gap between the door leaf and the door frame. This will not only reduce the sound insulation effect, but also fail to achieve the purpose of smoke insulation and fire prevention, resulting in safety hazards. The above-mentioned deficiency is more serious especially on larger door structures such as double-leaf fire doors, and obviously needs to be improved urgently.

In view of the lack of conventional fire door structure, this creation provides a fire door structure that can open the door leaf at multiple angles and has sound insulation and airtight performance; It is convenient for people to pass through, and can tightly close and seal the gap between the door leaves, which has the effect of sound insulation and dustproof; when a fire occurs, the structural design of the fire door can be opened in all directions without dead ends to ensure the smooth escape channel, so that people can escape smoothly and tightly Close and seal the gap between the door leaves, which can effectively block the flame, shield the heat or smoke from intruding into the room, and protect the safety of indoor personnel.

In order to achieve the above purpose, this creation provides a fireproof door structure, which includes a door frame and two door leaf groups; the door frame has a slightly mouth-shaped structure, and is fixed at the passageway entrance and exit of the building, along the inner edge of the door frame. There are inner eaves; the two door leaf groups are respectively pivotally connected to the two side columns of the door frame by the first hinge, and the two door leaf groups are symmetrically arranged on the inner periphery of the door frame, wherein each The door leaf group is composed of a carrier frame and a door leaf. The carrier frame is an inverted L-shaped plate body, and an outer baffle is arranged along the inner edge of the carrier frame. The door leaf is The two hinges are pivotally connected to the vertical plate body of the carrier frame, and an intermediate shield is provided on the movable opening side of the door leaf. The carrier frame and the door leaf are made of fire-resistant and heat-resistant materials.

Wherein, the first hinge is arranged on the outer side of the door opening of the fire door structure, and the second hinge is arranged on the inner side of the door opening of the fire door structure; preferably, the first hinge and the second hinge can be The pivot angle is greater than 90 degrees; more preferably, the pivot angle of the first hinge and the second hinge is 180 degrees.

Wherein, the height dimension of the transverse board portion of the carrier frame is greater than the height dimension of the inner eaves of the door frame.

Among them, the airtight strips are also included on the inner eaves of the door frame, the outer baffles of the carrier frame and the middle shield of the door leaf.

The accompanying figures describe the preferred embodiments of the creation, wherein, in order to provide a clearer description and easier understanding of the technical features of the creation, the parts in the drawings are not drawn according to their relative dimensions, and some dimensions are compared with others Relevant scales have been exaggerated; irrelevant details have not been fully drawn in order to simplify the diagram. In addition, in order to further illustrate the technical characteristics of this creation, a double-leaf fire door structure is described in the following embodiments, but it should be understood that the implementation of the invention is not limited to this description, for example, a single-leaf fire door structure It also belongs to the implementation scope of this creation.

Please also refer to the accompanying drawings and show that the fire door structure of the embodiment of the invention mainly includes a door frame 1 and a pair of door leaf groups 5 that are symmetrically arranged on the left and right; On the wall 2 of the entrance and exit of the passageway of the building, the inner side eaves 11 are provided along the inner edge of the door frame. The pair of door leaf groups 5 are disposed in the door frame 1, and are respectively pivotally connected to the two side columns of the door frame by the first hinge 12, whereby the two door leaf groups 5 are symmetrically installed on the inner periphery of the door frame 1; wherein Each door leaf group 5 includes a carrier frame 51 and a door leaf 55 respectively, the carrier frame 51 has a plate body with a slightly inverted L-shaped structure, and an outer side baffle 52 is provided on the inner edge of the carrier frame; the door leaf 55 borrows The second hinge 53 is pivotally connected to the vertical board part of the carrier frame 51, and an outwardly extending intermediate shield 57 is provided on the movable side of the door leaf; and the carrier frame 51 and the door leaf 55 are made of fire-resistant and heat-resistant materials The finished product is equipped with fire-proof and heat-insulating materials inside to form a heat-insulating interface, which can slow down the heat conduction between the inner and outer sides of the door structure in the event of a fire, and prolong the damage and deformation of the door structure. time, to achieve the purpose of fire prevention and heat insulation.

In the aforementioned fire door structure, the first hinge 12 is arranged on the outer side of the door opening of the fire door structure, and the second hinge 53 is arranged on the inner side of the door opening of the fire door structure; the first hinge 12 and the second hinge 53 are Choose a butterfly hinge that can rotate and return automatically, preferably with a pivot angle greater than 90 degrees, and more preferably with a pivot angle of 180 degrees; in addition, the horizontal plate body part of the carrier frame 51 The set height dimension must be greater than the height dimension of the inner side eaves 11 of the door frame 1, lest the inner side eaves 11 hinder the door leaf 55 from opening the door (Indoor) to the inner side; Air-tight strips 70 are respectively provided on the outer baffle plate 52 of the frame and the middle shutter 57 of the door leaf. The setting of these air-tight strips 70 can prevent the fire door structure from being damaged between hard components when the door is opened and closed. direct collision between them, causing damage and noise, and ensuring the airtight effect of the door gap after the door is closed.

According to the fire door structure composed of the above-mentioned components, when the fire door structure is operated to open the door (Outdoor) to the outside, the door leaf 55 will be against the outside baffle plate 52 of the carrier frame and cannot be opened to the outside alone, so that the whole The door leaf group 5 pivots to open the door outward based on the axis orientation of the first hinge 12; and when the fire door is configured to open the door to the inner side (Indoor), the transverse plate body part of the frame 51 of the door leaf group will abut against The inner side eaves 11 of the door frame cannot be opened to the inner side, but the door leaf 55 is not limited, and it can pivot and open the door to the inner side based on the axis of the second hinge 53; After the inner and outer side door opening operations, the two door leaf groups 5 and door leaf 55 of the fire door structure can be returned to the closed state by the automatic return function of the first hinge 12 and the second hinge 53.

With reference to the above description, it can be seen that the fire door structure of this invention can be opened at a large angle in both directions inside and outside at will, so as to facilitate the entry and exit of personnel at ordinary times and ensure the smooth effect of the escape channel in an emergency, and the fire door structure of this invention can be operated when the door is opened. Then it will automatically return to the closed state, and the gap between the door frame 1 and the door leaf group 5 will be covered and sealed, so that when a fire occurs, the intrusion of flame, hot gas or dense smoke can be effectively blocked, and the purpose of fire safety can be achieved.

The above-mentioned embodiments are only preferred embodiments for fully illustrating the invention, and the protection scope of the 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 attached patent application.

1: door frame 11: Inner eaves 12: First hinge 2: wall 5: Door leaf group 51: loading frame 52: Outer baffle 53:Second hinge 55: door leaf 57: Middle shutter 70: airtight strip

Figure 1 is a schematic diagram of the front structure of this creation; Fig. 2 is the top view sectional view of the creation of the Ⅱ-Ⅱ section of Fig. 1; Figure 3 is a side view cutaway view of the creation of the VI-VI section of Figure 1; and Fig. 4 is a schematic diagram of the door leaf group according to Fig. 2 in an open state.

1: door frame

11: Inner eaves

12: First hinge

5: Door leaf group

51: loading frame

52: Outer baffle

53:Second hinge

55: door leaf

57: Middle shutter

70: airtight strip

Claims (6)

A fireproof door structure, comprising a door frame and two door leaf groups, characterized in that: the door frame has a slightly mouth-shaped structure, is fixed at the passageway entrance and exit of a building, and is provided with an inner eaves along the inner edge of the door frame; The two door leaf groups are respectively pivotally connected to the two side columns of the door frame by first hinges, and the two door leaf groups are symmetrically arranged on the inner circumference of the door frame, wherein each door leaf group is composed of Composed of a carrier frame and a door leaf, the carrier frame is an inverted L-shaped plate body, along the inner edge of the carrier frame is provided with an outer baffle plate, the door leaf is pivotally connected to the door by a second hinge The vertical part of the carrier frame is facing the plate body, and an intermediate shield is provided on the movable opening side of the door leaf; the carrier frame and the door leaf are made of fireproof and heat-resistant materials. The fire door structure according to claim 1, wherein the first hinge is arranged on the door opening outer side of the fire door structure, and the second hinge is arranged on the door opening inner side of the fire door structure. The fire door structure according to claim 2, wherein the pivotable angles of the first hinge and the second hinge are greater than 90 degrees. The fire door structure according to claim 3, wherein the pivotable angle of the first hinge and the second hinge is 180 degrees. The fire door structure according to claim 1, wherein the height dimension of the transverse plate body portion of the carrier frame is greater than the height dimension of the inner side eaves of the door frame. The fire door structure according to claim 1, further comprising airtight strips on the inner eaves of the door frame, the outer baffles of the carrier frame and the middle shield of the door leaf.

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