A glass fire door

Abstract

The utility model discloses a glass fireproof door, it includes door frame, the door frame is hinged with two door leaves, the door leaf includes skeleton, panel, fireproof plate, fireproof door core and fireproof glass, the skeleton middle part is equipped with rectangular mounting port, and the skeleton is hollow in, the panel is installed in the both sides of skeleton, the fireproof plate is installed between fireproof door fire side's skeleton and the panel, the fireproof door core is installed in the skeleton inside, the fireproof glass is installed in the rectangular mounting port, the utility model discloses install fireproof plate between fireproof door fire side's skeleton and the panel, fill fireproof door core in the skeleton inside, its panel, fireproof plate, skeleton, fireproof door core's multilevel design makes the door body when receiving the fire each component division of labour cooperation, the whole promotion door body in the stability, integrity and heat insulation nature index in fire resistance test, has prolonged the time of preventing the fire and the smoke spread.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to a glass fire door. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity and heat insulation for a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts and other similar spaces. In addition to the functions of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke, and can stop the spread of fire for a certain period of time to ensure the evacuation of personnel.

[0003] Existing fire-resistant glass doors exhibit inconsistent performance in terms of fire resistance integrity. Some fire-resistant glass doors fail to effectively prevent the penetration of flames and smoke within the specified fire resistance test time. For example, some monolithic fire-resistant glass, while maintaining fire resistance integrity and blocking open flames and toxic or harmful gases from the fire-exposed surface for a certain period, lacks thermal insulation properties. In the high-temperature environment of a fire, the temperature on the other side of the door will rise rapidly, easily igniting surrounding combustibles and causing the fire to spread further. Utility Model Content

[0004] The purpose of this invention is to provide a glass fireproof door to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a glass fire door, which includes a door frame with two door leaves hinged to the frame. Each door leaf includes a frame, a panel, a fireproof board, a fireproof door core, and fireproof glass. The frame has a rectangular mounting opening in the middle and is hollow inside. The panel is installed on both sides of the frame. The fireproof board is installed between the frame and the panel on the fire-exposed side of the fire door. The fireproof door core is installed inside the frame, and the fireproof glass is installed in the rectangular mounting opening.

[0006] Furthermore, the fireproof glass includes double-glazed glass, single-glazed glass, and fireproof liquid. The double-glazed glass is installed in the rectangular mounting opening, and the single-glazed glass is installed inside the double-glazed glass, forming two liquid storage cavities with the double-glazed glass. The fireproof liquid is filled in the liquid storage cavities.

[0007] Furthermore, the fire retardant liquid is a silica fire retardant liquid.

[0008] Furthermore, the fireproof board is a magnesium fireproof board.

[0009] Furthermore, symmetrically arranged cover strips are installed on the movable ends of the two door panels.

[0010] Furthermore, fireproof latches are installed at both the top and bottom of the door leaf.

[0011] Furthermore, a fire-prevention sequencer is installed on the top of the door leaf.

[0012] Furthermore, the hinged end of the door leaf is hinged to the door frame via an eccentric shaft hinge.

[0013] Furthermore, symmetrically arranged fire-resistant expansion seals are installed on the movable end faces of both door panels.

[0014] The beneficial effects of this utility model are as follows: By installing a fireproof board between the frame and the panel on the fire-exposed side of the fire door and filling the frame with a fireproof door core, the multi-level design of the panel, fireproof board, frame and fireproof door core allows the various components of the door to work together when exposed to fire, thereby improving the stability, integrity and heat insulation of the door in the fire resistance test and extending the time to prevent the spread of fire and smoke. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of AA.

[0017] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of BB.

[0018] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of CC.

[0019] The components include: 1. door frame; 2. door leaf; 3. cover strip; 4. fireproof bolt; 5. fireproof sequencer; 6. eccentric shaft hinge; 7. fireproof expansion seal.

[0020] 21. Frame; 22. Panel; 23. Fireproof board; 24. Fireproof door core; 25. Fireproof glass

[0021] 251. Double-glazed insulated glass; 252. Single-glazed glass; 253. Liquid storage chamber; Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only one embodiment of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To make the objectives, technical solutions and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] In the following description, references to "an embodiment," "an embodiment," "an example," "example," etc., indicate that the described embodiment or example may include a particular feature, structure, characteristic, property, element, or limitation, but not every embodiment or example necessarily includes that particular feature, structure, characteristic, property, element, or limitation. Furthermore, the repeated use of the phrase "an embodiment according to this application," while possibly referring to the same embodiment, does not necessarily refer to the same embodiment.

[0025] like Figures 1-4 As shown, this utility model discloses a glass fire door, which includes a door frame 1, with two door leaves 2 hinged in the door frame 1. Each door leaf 2 includes a frame 21, a panel 22, a fireproof board 23, a fireproof door core 24, and fireproof glass 25. The frame 21 has a rectangular mounting opening in the middle and is hollow inside. The panel 22 is installed on both sides of the frame 21. The fireproof board 23 is installed between the frame 21 and the panel 22 on the fire-exposed side of the fire door. The fireproof door core 24 is installed inside the frame 21, and the fireproof glass 25 is installed in the rectangular mounting opening.

[0026] Panels 22 are installed on both sides of the frame 21 and are made of materials with good fire resistance. In this embodiment, the frame 21 can be made of 1.2mm cold-rolled galvanized steel sheet, and the panels 22 can be made of 0.8mm cold-rolled galvanized steel sheet. In the early stages of a fire, panels 22 can block some of the flames and heat, slowing the spread of fire into the interior of the door. Fireproof board 23 is installed between the frame 21 and the panels 22 on the fire-exposed side of the fire door and is made of high-performance fireproof material. When exposed to high temperatures, the fireproof board 23 undergoes changes in its physical and chemical properties, forming an effective fire barrier. It not only prevents the penetration of flames but also significantly reduces the transfer of heat to the other side of the door, thus providing insulation and protecting the safety of evacuation routes.

[0027] In addition, the fireproof door core 24 is filled inside the frame 21 to effectively prevent high temperature from damaging other parts of the door, maintain the structural stability and fire resistance of the door leaf 2, ensure that the door remains intact for a specified time, and prevent the spread of flames and smoke.

[0028] This utility model installs a fireproof board 23 between the frame 21 and the panel 22 on the fire-exposed side of the fire door, and fills the frame 21 with a fireproof door core 24. The multi-level design of the panel 22, fireproof board 23, frame 21 and fireproof door core 24 enables the various components of the door to work together when exposed to fire, thereby improving the stability, integrity and heat insulation of the door in the fire resistance test and extending the time to prevent the spread of fire and smoke.

[0029] In one embodiment, the fireproof glass 25 includes a double-glazed insulated glass 251, a single-glazed glass 252, and a fireproof liquid. The double-glazed insulated glass 251 is installed in a rectangular mounting opening, and the single-glazed glass 252 is installed inside the double-glazed insulated glass 251, forming two liquid storage cavities 253 with the double-glazed insulated glass 251. The fireproof liquid is filled in the liquid storage cavities 253.

[0030] In this embodiment, the double-glazed insulated glass 251, serving as the outermost layer of the fire-resistant glass 25, is directly installed in the rectangular mounting opening of the frame 21. Inside the double-glazed insulated glass 251, a single-layer glass 252 is installed, forming two independent liquid storage chambers 253 with the inner glass layer of the double-glazed insulated glass 251. Fire-retardant liquid (such as water glass-based fire-retardant liquid or intumescent fire-retardant liquid) is filled in these chambers. Both the double-glazed insulated glass 251 and the single-layer glass 252 are 5mm tempered glass. The fire-retardant liquid expands when heated, and the expanded fire-retardant liquid layer has an extremely low thermal conductivity, which can significantly reduce the conduction of heat to non-fire-exposed surfaces. At the same time, the bonding effect between the fire-retardant liquid and the glass prevents the inner single-layer glass 252 from cracking due to thermal stress, maintaining structural integrity.

[0031] In one embodiment, the fire retardant is a silica fire retardant. It is liquid or gel-like at room temperature and fills two storage chambers 253 formed by the double-layered hollow glass 251 and the inner single-layered glass 252. At high temperatures, the silica fire retardant expands to form a porous silicate gel layer with extremely low thermal conductivity, significantly reducing heat transfer.

[0032] In one embodiment, the fireproof board 23 is a magnesium fireproof board 23. The high fire resistance (softening point > 1500°C) and low thermal conductivity of the magnesium fireproof board 23 enable it to maintain structural integrity even under prolonged high temperatures.

[0033] In one embodiment, symmetrically arranged cover strips 3 are installed on the movable ends (i.e., the edges that come into contact with each other when closed) of the two door leaves 2. That is, cover strips 3 are installed on both the inner and outer sides of the fire door, and when the two door leaves 2 are closed, the symmetrically arranged cover strips 3 seal the inner and outer sides of the door seam.

[0034] In one embodiment, fireproof latches 4 are installed at both the top and bottom of the door leaf 2. The fireproof latches 4 fix the position of the door leaf 2 to prevent the fireproof board 23, fireproof door core 24 and other heat insulation structures from becoming detached from the door frame 1 due to displacement, and to ensure that the heat insulation material continues to function.

[0035] In one embodiment, a fire sequencer 5 is installed on the top of the door leaf 2. In this embodiment, the two door leaves 2 are divided into a main leaf (the leaf that closes first) and a secondary leaf (the leaf that closes last). The fire sequencer 5 is generally installed on the top of the door leaf 2. When both doors are closed, the sequencer controls the closing order of the two doors, usually allowing the main leaf to close first and the secondary leaf to close last, or adjusting the order according to the design.

[0036] In one embodiment, the hinged end of door leaf 2 is hinged to door frame 1 via an eccentric shaft hinge 6. When door leaf 2 is closed, the eccentric shaft hinge 6 rotates the eccentric shaft, causing the hinge seat to shift, thereby adjusting the vertical and horizontal position of door leaf 2 to ensure effective sealing of the sealing strip (such as the cover strip 3). In a fire, even if door leaf 2 deforms due to thermal expansion, the eccentric shaft hinge 6 can still maintain sealing by adjustment, preventing flames and smoke from penetrating. In this embodiment, both the upper and lower ends of door leaf 2 are hinged to door frame 1 via eccentric shaft hinges 6. The eccentric shaft hinge 6 is made of stainless steel and typically has a single load capacity of 250 kg, effectively supporting both glass door leaves 2. By rotating the eccentric shaft, the position of the hinge seat changes. After the axis shifts, the contact area between the hinge seat and door frame 1 and door leaf 2 increases, resulting in a more uniform stress distribution.

[0037] In one embodiment, symmetrically arranged fire-resistant expansion seals 7 are installed on the movable end faces of both door leaves 2 to further seal the door gaps. Simultaneously, in this embodiment, fire-resistant expansion seals 7 are also provided between the hinge end of the door leaf 2 and the door frame 1 to seal the gap between the door frame 1 and the door leaf 2 caused by hinge movement.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use this invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A glass fire door, comprising a door frame, wherein two door leaves are hinged to the door frame, characterized in that: The door leaf includes a frame, a panel, a fireproof board, a fireproof door core, and fireproof glass. The frame has a rectangular mounting opening in the middle and is hollow inside. The panel is installed on both sides of the frame. The fireproof board is installed between the frame and the panel on the fire-exposed side of the fire door. The fireproof door core is installed inside the frame, and the fireproof glass is installed in the rectangular mounting opening.

2. A glass fire door according to claim 1, characterized in that: The fireproof glass includes double-glazed glass, single-glazed glass, and fireproof liquid. The double-glazed glass is installed in the rectangular mounting opening, and the single-glazed glass is installed inside the double-glazed glass, forming two liquid storage cavities with the double-glazed glass. The fireproof liquid is filled in the liquid storage cavities.

3. A glass fire door according to claim 2, characterized in that: The fire retardant liquid is a silica fire retardant liquid.

4. A glass fire door according to claim 1, characterized in that: The fireproof board is a magnesium fireproof board.

5. A glass fire door according to claim 1, characterized in that: Symmetrically arranged cover strips are installed on the movable ends of the two door panels.

6. A glass fire door according to claim 1, characterized in that: Fireproof latches are installed at the top and bottom of the door leaf.

7. A glass fire door according to claim 1, characterized in that: A fire-prevention sequencer is installed on the top of the door.

8. A glass fire door according to claim 1, characterized in that: The hinged end of the door leaf is hinged to the door frame via an eccentric shaft hinge.

9. A glass fire door according to claim 1, characterized in that: Both of the door panels have symmetrically arranged fire-resistant expansion seals installed on their movable end faces.

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