A safe fireproof fire-retardant structure

Abstract

The utility model provides a kind of safe fireproof flame-retardant fireproof structure, including door frame, the door leaf being set in the door frame inside and the door lock and operating handle being set on door leaf, and door leaf includes two groups of outer door panel, the fire-retardant layer being set respectively near two groups of outer door panel and the heat insulation layer being located between two fire-retardant layers;Several partitions are arranged between two groups of outer door panel, and first installation cavity and second installation cavity are formed between partition and two groups of outer door panel, first installation cavity is used to install door lock and operating handle, and second installation cavity is used to install fire-retardant layer and heat insulation layer;Fire-retardant layer includes expansion type fire-retardant layer near door leaf edge and endothermic type fire-retardant layer in middle part, while guaranteeing fire-retardant effect, once accident occurs, the expansion of edge expansion type fire-retardant material, play the role of partition.

Description

Technical Field

[0001] This utility model relates to a fireproof structure, specifically, a fire-retardant fireproof structure that provides safety and fire protection. Background Technology

[0002] Fire doors are doors that meet requirements for fire resistance integrity and thermal insulation for a certain period of time, and are a key component of fire-resistant building compartments. Through special materials and structural design, they can block the spread of flames and control the spread of smoke during a fire, providing a buffer time for personnel evacuation and fire rescue. Compared with ordinary flame-retardant doors, fire doors must meet stricter national standards, not only possessing flame retardancy but also meeting stringent requirements such as fire resistance limits and structural stability.

[0003] Currently, there are many fire-retardant structures, such as a fire-retardant structure for fire doors disclosed in Chinese patent CN222542309U, a fire-retardant and fireproof board structure disclosed in Chinese patent CN222116274U, and a steel insulated fire door with a built-in fire-retardant structure disclosed in Chinese patent CN220580895U. However, these fire-retardant structures usually integrate the fireproof material in the door, which is not conducive to both fire prevention and smoke prevention, resulting in poor fire protection effect.

[0004] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a safe and fire-retardant fireproof structure.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fire-retardant and fireproof structure includes a door frame, a door leaf disposed inside the door frame, and a door lock and an operating handle disposed on the door leaf. The door leaf includes two sets of outer door panels, fire-retardant layers disposed near the two sets of outer door panels respectively, and a heat insulation layer located between the two fire-retardant layers. Several partitions are disposed between the two sets of outer door panels, forming a first mounting cavity and a second mounting cavity between the partitions and the two sets of outer door panels. The first mounting cavity is used to install the door lock and the operating handle, and the second mounting cavity is used to install the fire-retardant layer and the heat insulation layer. The fire-retardant layer includes an intumescent fire-retardant layer near the edge of the door leaf and a heat-absorbing fire-retardant layer in the middle.

[0007] The intumescent fire-retardant layer surrounds the heat-absorbing fire-retardant layer in the middle and is in contact with the heat-absorbing fire-retardant layer.

[0008] The outer contour of the door leaf is coated with an intumescent fire-retardant coating, and the edge of the door leaf is fitted with a sealing and sound-insulating ring corresponding to the inner contour of the door frame.

[0009] A heat insulation cavity is provided between the two fireproof and flame-retardant layers, and the heat insulation cavity is filled with heat insulation material to form a heat insulation layer; a fireproof and flame-retardant cavity is formed between the heat insulation cavity and the two sets of outer door panels, and the fireproof and flame-retardant cavity is filled with fireproof and flame-retardant material to form a fireproof and flame-retardant layer.

[0010] The door frame includes a rectangular frame parallel to the two sets of door leaves and an annular plate connecting the two rectangular frames. Several bolt holes are evenly arranged on the annular plate and the rectangular frame.

[0011] One of the rectangular frame sides is provided with several first hinge seats, and the outer door panel is provided with corresponding second hinge seats. The second hinge seats are provided with hinge shafts, and the hinge shafts are rotatably connected to the first hinge seats.

[0012] A third hinge seat is provided at the top of the door leaf, and a fourth hinge seat is provided on the corresponding rectangular frame. The third and fourth hinge seats are connected by two hinge rods.

[0013] The intumescent fire-retardant coating uses water-based silicate intumescent fire-retardant paint.

[0014] The heat-absorbing fireproof and flame-retardant layer uses aluminum hydroxide, magnesium hydroxide, expanded perlite board or composite heat-absorbing and flame-retardant materials.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a safe and fireproof flame-retardant structure. The fire-retardant layer includes an intumescent fire-retardant layer near the edge of the door leaf and a heat-absorbing fire-retardant layer in the middle. The fire-retardant material is designed in sections. While ensuring the fire-retardant effect, in the event of an accident, the intumescent fire-retardant material at the edge expands and plays a role in isolation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] In the diagram: 1. Door frame; 2. Door leaf; 3. Door lock; 4. Operating handle; 5. First hinge seat; 6. Second hinge seat; 7. Third hinge seat; 8. Fourth hinge seat; 9. Hinge connecting rod; 10. Heat insulation layer; 11. Heat-absorbing fire-retardant layer; 12. Intumescent fire-retardant layer. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. "Installed," "equipped with," and "connected" can employ conventional means in the prior art, such as integral installation, snap-fit ​​installation, welding connection, adhesive connection, bolted connection, etc. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances and select suitable connection, setting, or installation methods from the existing technology.

[0021] like Figure 1-2 As shown, a fire-retardant structure for safety and fire prevention includes a door frame 1, a door leaf 2 disposed inside the door frame 1, and a door lock 3 and an operating handle 4 disposed on the door leaf 2. The door leaf 2 includes two sets of outer door panels, fire-retardant layers disposed near the two sets of outer door panels respectively, and a heat insulation layer 10 located between the two fire-retardant layers. Several partitions are disposed between the two sets of outer door panels, forming a first mounting cavity and a second mounting cavity between the partitions and the two sets of outer door panels. The first mounting cavity is used to install the door lock 3 and the operating handle 4, and the second mounting cavity is used to install the fire-retardant layer and the heat insulation layer 10. The fire-retardant layer includes an intumescent fire-retardant layer 12 near the edge of the door leaf 2 and a heat-absorbing fire-retardant layer 11 located in the middle. While ensuring the fire-retardant effect, in the event of an accident, the intumescent fire-retardant material at the edge expands and acts as a barrier.

[0022] Specifically, the heat-absorbing fire-retardant layer 11 can be made of aluminum hydroxide resin composite board, magnesium hydroxide resin composite board, expanded perlite board or other composite heat-absorbing fire-retardant materials commonly used in the prior art; the intumescent fire-retardant layer 12 can be made of commercially available water-based intumescent fire-retardant materials, intumescent fire-stopping materials, etc.

[0023] In one embodiment, the intumescent fire-retardant layer 12 surrounds the outer side of the heat-absorbing fire-retardant layer 11 in the middle and is in contact with the heat-absorbing fire-retardant layer 11, making full use of the space inside the door leaf 2.

[0024] In one embodiment, the outer contour of the door leaf 2 is provided with an intumescent fire-retardant coating, which is a water-based silicate intumescent fire-retardant coating. The edge of the door leaf 2 is provided with a sealing and sound-insulating ring corresponding to the inner contour of the door frame 1 to reduce the noise generated when closing the door.

[0025] In one embodiment, a heat-insulating cavity is provided between the two fire-retardant layers, and the heat-insulating cavity is filled with heat-insulating material to form heat-insulating layer 10; a fire-retardant cavity is formed between the heat-insulating cavity and the two sets of outer door panels, and the fire-retardant cavity is filled with fire-retardant material to form a fire-retardant layer. Specifically, the heat-insulating material can be common heat-insulating and fire-resistant materials such as perlite and ceramics, or it can be filled with air to simply provide a heat-insulating effect.

[0026] In one embodiment, the door frame 1 includes a rectangular frame parallel to the two sets of door leaves 2 and an annular plate connecting the two rectangular frames. A plurality of bolt holes are evenly provided on the annular plate and the rectangular frame to facilitate the assembly of the door frame 1.

[0027] In one embodiment, a plurality of first hinge seats 5 are provided on the side of one of the rectangular frame, and a second hinge seat 6 is provided on the side of the outer door panel. A hinge shaft is provided on the second hinge seat 6, and the hinge shaft is rotatably connected to the first hinge seat 5, so as to facilitate the hinge assembly of the door frame 1 and the door leaf 2.

[0028] In one embodiment, a third hinge seat 7 is provided at the top of the door leaf 2, and a fourth hinge seat 8 is provided on the rectangular frame. The third hinge seat 7 and the fourth hinge seat 8 are connected by two hinge rods 9. The two hinge rods 9 are respectively hinged to the third hinge seat 7 and the fourth hinge seat 8, and the two hinge rods 9 are also hinged to each other to prevent the door leaf 2 from hitting the wall due to excessive opening.

[0029] The above embodiments can be combined with each other.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A fire-retardant and fireproof structure, comprising a door frame, a door leaf disposed inside the door frame, and a door lock and an operating handle disposed on the door leaf, characterized in that: The door leaf includes two sets of outer door panels, fire-retardant layers respectively disposed near the two sets of outer door panels, and a heat insulation layer located between the two fire-retardant layers; several partitions are disposed between the two sets of outer door panels, forming a first mounting cavity and a second mounting cavity between the partitions and the two sets of outer door panels. The first mounting cavity is used to install a door lock and an operating handle, and the second mounting cavity is used to install the fire-retardant layer and the heat insulation layer; the fire-retardant layer includes an intumescent fire-retardant layer near the edge of the door leaf and a heat-absorbing fire-retardant layer in the middle.

2. The fire-retardant and fireproof structure for safety and fire prevention according to claim 1, characterized in that: The intumescent fire-retardant layer surrounds the heat-absorbing fire-retardant layer in the middle and is in contact with the heat-absorbing fire-retardant layer.

3. The fire-retardant and fireproof structure for safety and fire prevention according to claim 2, characterized in that: The outer contour of the door leaf is coated with an intumescent fire-retardant coating, and the edge of the door leaf is fitted with a sealing and sound-insulating ring corresponding to the inner contour of the door frame.

4. The fire-retardant and fireproof structure for safety and fire prevention according to claim 3, characterized in that: A heat insulation cavity is provided between the two fireproof and flame-retardant layers, and the heat insulation cavity is filled with heat insulation material to form a heat insulation layer; a fireproof and flame-retardant cavity is formed between the heat insulation cavity and the two sets of outer door panels, and the fireproof and flame-retardant cavity is filled with fireproof and flame-retardant material to form a fireproof and flame-retardant layer.

5. The fire-retardant and fireproof structure for safety and fire prevention according to claim 4, characterized in that: The door frame includes a rectangular frame parallel to the two sets of door leaves and an annular plate connecting the two rectangular frames. Several bolt holes are evenly arranged on the annular plate and the rectangular frame.

6. The fire-retardant and fireproof structure for safety and fire prevention according to claim 5, characterized in that: One of the rectangular frame sides is provided with several first hinge seats, and the outer door panel is provided with corresponding second hinge seats. The second hinge seats are provided with hinge shafts, and the hinge shafts are rotatably connected to the first hinge seats.

7. The fire-retardant and fireproof structure for safety and fire prevention according to claim 6, characterized in that: A third hinge seat is provided at the top of the door leaf, and a fourth hinge seat is provided on the corresponding rectangular frame. The third and fourth hinge seats are connected by two hinge rods.

8. The fire-retardant and fireproof structure for safety and fire prevention according to claim 7, characterized in that: The intumescent fire-retardant coating uses water-based silicate intumescent fire-retardant paint.

9. The fire-retardant and fireproof structure for safety and fire prevention according to claim 8, characterized in that: The heat-absorbing fireproof and flame-retardant layer uses aluminum hydroxide, magnesium hydroxide, expanded perlite board or composite heat-absorbing and flame-retardant materials.

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