Fireproof door with door mirror

Abstract

The embodiment of the utility model provides a fireproof door with a door mirror, and compared with the prior art that an existing fireproof door is simple in structure, lacks functionality and attractiveness, only has a fireproof function and does not have other performance, the fireproof door with the door mirror has the advantages that a door mirror assembly is arranged on an unexposed surface; and sound-absorbing cotton is arranged on the side, away from the door mirror assembly, of the electric heating film. The electric heating door comprises a door leaf and a door frame; the outer side of the door leaf wraps the door frame, and one side of the door leaf is hinged to the door frame. One surface of the door leaf is a fire-back surface, and the other surface of the door leaf is a fire-receiving surface; a door mirror assembly is arranged on the unexposed surface; the door mirror assembly comprises an upper door mirror, a lower door mirror and a milling groove; the upper door mirror and the lower door mirror are symmetrically arranged, and the milling grooves are formed in the peripheries of the upper door mirror and the lower door mirror; an electrothermal film for preventing the door mirror assembly from fogging is arranged on the inner side of the door mirror assembly; the side, away from the door mirror assembly, of the electric heating film is provided with sound absorption cotton.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a fire door with a peephole. Background Art

[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. It is a fire separation with a certain fire resistance set in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the function of an ordinary door, a fire door can also prevent the spread of fire and smoke, and can prevent the spread of fire within a certain period of time to ensure the evacuation of personnel.

[0003] However, the existing fire doors have a simple structure, lack functionality and aesthetics, only have the fire prevention function, and do not have other performances. Summary of the Utility Model

[0004] In view of the above problems, embodiments of the present utility model are proposed to provide a fire door with a peephole that can overcome or at least partially solve the above problems:

[0005] A fire door with a peephole includes a door leaf and a door frame; the outside of the door leaf wraps the door frame, and one side of the door leaf is hinged to the door frame;

[0006] One side of the door leaf is the back fire side, and the other side of the door leaf is the fire receiving side; a peephole assembly is provided on the back fire side; the peephole assembly includes an upper peephole, a lower peephole and a milling groove;

[0007] The upper peephole and the lower peephole are symmetrically arranged, and the milling groove is arranged around the upper peephole and the lower peephole; an electric heating film for preventing the peephole assembly from fogging is provided inside the peephole assembly;

[0008] A sound-absorbing cotton is provided on the side of the electric heating film away from the peephole assembly.

[0009] Preferably, the door leaf includes a first decorative panel layer, a first flame-retardant medium-density fiberboard layer, a first fireproof board layer, a fire door core board, a steel plate layer, a second fireproof board layer, a second flame-retardant medium-density fiberboard layer and a second decorative panel layer arranged in sequence;

[0010] One side of the first decorative panel layer is the back fire side, and one side of the second decorative panel layer is the fire receiving side; the peephole assembly is provided outside the first decorative panel layer.

[0011] Preferably, a mildew-proof coating is provided on the surface of the second decorative panel layer.

[0012] Preferably, horizontal and vertical reinforcing ribs are arranged inside the fire door core board; among them, the reinforcing ribs are steel bars with a diameter of 6 mm.

[0013] Preferably, the thickness of the first flame-retardant medium-density fiberboard layer is 3 mm, and the thickness of the second flame-retardant medium-density fiberboard layer is 5 mm;

[0014] Both the first flame-retardant medium-density fiberboard layer and the second flame-retardant medium-density fiberboard layer are made of plant fibers, flame-retardant glue, and waterproofing agent.

[0015] Preferably, the fireproof door core board is made of magnesium oxide, magnesium chloride, magnesium sulfate, perlite, and foaming agent.

[0016] Preferably, a flame-retardant wood skeleton is provided around the fireproof door core; the thickness of the flame-retardant wood skeleton is the same as that of the fireproof door core.

[0017] Preferably, the sound-absorbing cotton is made of nylon fiber.

[0018] Preferably, the electric heating film is a nickel-chromium resistance layer.

[0019] Preferably, the door leaf is provided with a fireproof lock; the fireproof lock is arranged in the middle of the door leaf.

[0020] The present application specifically includes the following advantages:

[0021] In the embodiment of the present application, compared with the prior art of "However, the existing fireproof door has a simple structure, lacks functionality and aesthetics, only has a fireproof function, and does not have other properties", the present application provides a solution of "a door mirror assembly is provided on the back fire surface; a sound-absorbing cotton is provided on the side of the electric heating film away from the door mirror assembly", specifically: including a door leaf and a door frame; the door frame is wrapped outside the door leaf, and one side of the door leaf is hinged to the door frame; one side of the door leaf is the back fire surface, and the other side of the door leaf is the fire-receiving surface; a door mirror assembly is provided on the back fire surface; the door mirror assembly includes an upper door mirror, a lower door mirror, and a milling groove; the upper door mirror and the lower door mirror are symmetrically arranged, and the milling groove is arranged around the upper door mirror and the lower door mirror; an electric heating film for preventing the door mirror assembly from fogging is provided inside the door mirror assembly; a sound-absorbing cotton is provided on the side of the electric heating film away from the door mirror assembly. The problem of "the existing fireproof door has a simple structure, lacks functionality and aesthetics, only has a fireproof function, and does not have other properties" is solved by the fireproof glass, so that the fireproof door has the function of a door mirror, and through the setting of the electric heating film, the door mirror has an anti-fogging function, which has the advantage of practicality in the home. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solution of the present application, the accompanying drawings required for use in the description of the present application will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic structural diagram of a fire door with a door viewer according to the present utility model;

[0024] Figure 2 is a Figure 1 schematic cross-sectional structural diagram in the A-A direction of a fire door with a door viewer according to the present utility model;

[0025] Figure 3 is of the present utility model Figure 2 schematic diagram of local detailed structure;

[0026] Figure 4 is a Figure 1 schematic cross-sectional structural diagram in the B-B direction of a fire door with a door viewer according to the present utility model;

[0027] Figure 5 is a Figure 1 schematic cross-sectional structural diagram in the C-C direction of a fire door with a door viewer according to the present utility model;

[0028] 1. Door frame; 2. Door leaf; 3. Fireproof lock; 4. Fireproof hinge; 5. Door viewer assembly; 51. Upper door viewer; 52. Lower door viewer; 6. Milled groove; 7. Sealing member; 8. Steel plate layer; 9. First fireproof board; 10. Fireproof door core board; 11. First flame-retardant medium-density fiberboard; 12. Skeleton; 13. First decorative panel; 14. Electric heating film. Specific embodiments

[0029] To make the above-mentioned objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0030] The inventor found through analysis of the prior art that: However, the existing fire doors have a simple structure, lack functionality and aesthetics, only have the fireproof function, and do not have other properties.

[0031] While designing the door viewer, the present application also designs an electric heating film to prevent the door viewer from fogging, maintain the clarity of the door viewer, and inlay a milled groove around the door viewer, making the whole more beautiful.

[0032] In an embodiment of the present application, compared with the prior art "However, the existing fire doors have a simple structure, lack functionality and aesthetics, only have the fire prevention function, and do not have other performances", the present application provides a solution of "a door mirror assembly 5 is provided on the back fire side; a sound-absorbing cotton is provided on the side of the electric heating film 14 away from the door mirror assembly 5", specifically: including a door leaf 2 and a door frame 1; the door frame 1 is wrapped outside the door leaf 2, and one side of the door leaf 2 is hinged to the door frame 1; one side of the door leaf 2 is the back fire side, and the other side of the door leaf 2 is the fire-receiving side; a door mirror assembly 5 is provided on the back fire side; the door mirror assembly 5 includes an upper door mirror 51, a lower door mirror 52 and a milling groove 6; the upper door mirror 51 and the lower door mirror 52 are symmetrically arranged, and the milling groove 6 is arranged around the upper door mirror 51 and the lower door mirror 52; an electric heating film 14 for preventing the door mirror assembly 5 from fogging is provided inside the door mirror assembly 5; a sound-absorbing cotton is provided on the side of the electric heating film 14 away from the door mirror assembly 5. By using fireproof glass, the problem of "the existing fire doors have a simple structure, lack functionality and aesthetics, only have the fire prevention function, and do not have other performances" is solved, so that the fire door has the function of a door mirror, and through the arrangement of the electric heating film 14, the door mirror has the function of preventing fogging, which has the advantage of practicality in the home.

[0033] Refer to Figures 1-5 , which shows a schematic structural view of a fire door with a door mirror of the present utility model, specifically including the following structure: including a door leaf 2 and a door frame 1; the door frame 1 is wrapped outside the door leaf 2, and one side of the door leaf 2 is hinged to the door frame 1; one side of the door leaf 2 is the back fire side, and the other side of the door leaf 2 is the fire-receiving side; a door mirror assembly 5 is provided on the back fire side; the door mirror assembly 5 includes an upper door mirror 51, a lower door mirror 52 and a milling groove 6; the upper door mirror 51 and the lower door mirror 52 are symmetrically arranged, and the milling groove 6 is arranged around the upper door mirror 51 and the lower door mirror 52; an electric heating film 14 for preventing the door mirror assembly 5 from fogging is provided inside the door mirror assembly 5; a sound-absorbing cotton is provided on the side of the electric heating film 14 away from the door mirror assembly 5; wherein, the sound-absorbing cotton is thinner and pressed, and may not be reflected in Figure 2 it.

[0034] It should be noted that the width of a fire door with a door mirror in the present application is 1200 millimeters, the height is twice the width, specifically 2400 millimeters, the width of the door leaf 2 is 1114 millimeters, and the width between both sides of the door leaf 2 and the door frame 1 is 3 millimeters.

[0035] Next, a fire door with a door mirror in the present exemplary embodiment will be further described.

[0036] In an embodiment of the present application, the outer side of the door leaf 2 wraps the door frame 1, and one side of the door leaf 2 is hinged to the door frame 1; one side of the door leaf 2 is connected to the door frame 1 through a hinge, wherein the hinge is a fireproof hinge 4.

[0037] As an example, the door frame 1 is made of 1.2-mm cold-rolled hot-dip galvanized steel sheet. The door frame 1 is designed to be hollow to reduce the overall weight, and its shape is "convex". The bottom length of the door frame 1 near the fire-back side is 40 mm, the bottom length of the door frame 1 near the fire-exposed side is 80 mm, and there is a 30-mm separately protruding steel plate. The overall width of the door frame 1 is 240 mm, and the door frame 1 is adapted to the door leaf 2.

[0038] It should be noted that cold rolling uses hot-rolled steel coils as raw materials. After pickling to remove the oxide scale, continuous cold rolling is carried out, and its finished product is cold-rolled hard coil. Due to the work hardening caused by continuous cold deformation, the strength and hardness of the cold-rolled hard coil increase, and the toughness and plasticity indexes decrease. Therefore, the stamping performance will deteriorate, and it can only be used for parts with simple deformation. The cold-rolled hard coil can be used as the raw material of the hot-dip galvanizing plant because the hot-dip galvanizing unit is equipped with a recrystallization annealing line. Hot dipping is when an iron workpiece is immersed in molten zinc liquid, first a zinc-α iron (body-centered) solid solution is formed at the interface. This is a crystal formed by the dissolution of zinc atoms in the matrix metal iron in the solid state. The two metal atoms are fused, and the gravitational force between the atoms is relatively small. Therefore, when zinc reaches saturation in the solid solution, the zinc and iron atoms diffuse into each other, and the zinc atoms diffusing into (or infiltrating into) the iron matrix migrate in the matrix lattice and gradually form an alloy with iron.

[0039] In a specific embodiment, the door frame 1 wraps the door leaf 2 and is in an overall square ring shape. The door frame 1 is flush with the fire-back side of the fire door.

[0040] In an embodiment of the present application, it includes a door leaf 2 and a door frame 1; the outer side of the door leaf 2 wraps the door frame 1, and one side of the door leaf 2 is hinged to the door frame 1; one side of the door leaf 2 is the fire-back side, and the other side of the door leaf 2 is the fire-exposed side; a door mirror assembly 5 is provided on the fire-back side; the door mirror assembly 5 includes an upper door mirror 51, a lower door mirror 52, and a milling groove 6; the upper door mirror 51 and the lower door mirror 52 are symmetrically arranged, and the milling groove 6 is arranged around the upper door mirror 51 and the lower door mirror 52; an electric heating film 14 for preventing the door mirror assembly 5 from fogging is provided inside the door mirror assembly 5; a sound-absorbing cotton is provided on the side of the electric heating film 14 away from the door mirror assembly 5.

[0041] As an example, the lower door mirror 52 is provided below the upper door mirror 51. There is a milling groove 6 between the upper door mirror 51 and the lower door mirror 52. The size of the milling groove 6 is 3 millimeters in width and 3 millimeters in depth. The milling groove 6 can be filled with a paint of the same color system as the door leaf 2. There is an electric heating film 14 behind the door mirror. The electric heating film 14 prevents the door mirror from fogging up by heating. Among them, the electric heating film 14 is a nickel-chromium resistance layer.

[0042] As an example, an LED light strip can also be installed around the door mirror, making the door mirror more practical. The LED light strip is electrically connected to the electric heating film 14. In this application, the sound-absorbing cotton can not only play a role in sound absorption but also play a role in shock absorption. The sound-absorbing cotton is made of nylon fiber, and the thickness of the sound-absorbing cotton is 3 millimeters.

[0043] In an embodiment of the present application, the thickness of the door leaf 2 is 63 millimeters. The door leaf 2 includes a first decorative panel layer 13, a first flame-retardant medium-density fiberboard layer 11, a first fireproof board layer 9, a fireproof door core board 10, a steel plate layer 8, a second fireproof board layer, a second flame-retardant medium-density fiberboard layer, and a second decorative panel layer arranged in sequence; one side of the first decorative panel layer 13 is the fire-facing side, and one side of the second decorative panel layer is the fire-exposed side; the door mirror assembly 5 is provided outside the first decorative panel layer 13.

[0044] In a specific embodiment, both the first decorative panel layer 13 and the second decorative panel layer are 3-millimeter panels, and both the first decorative panel layer 13 and the second decorative panel layer have been treated by soaking in a flame retardant. The thickness of the first flame-retardant medium-density fiberboard layer 11 is 3 millimeters, and the thickness of the second flame-retardant medium-density fiberboard layer is 5 millimeters; both the first flame-retardant medium-density fiberboard layer 11 and the second flame-retardant medium-density fiberboard layer are made of plant fiber, flame retardant glue, and waterproof agent. Because the second flame-retardant medium-density fiberboard layer is close to the fire-exposed side, the thickness of the second flame-retardant medium-density fiberboard layer is greater than the thickness of the first flame-retardant medium-density fiberboard layer 11. The raw material weight ratio of the flame-retardant medium-density fiberboard layer is that the ratio of plant fiber, flame retardant glue, and waterproof agent is 98:15:3.

[0045] As an example, a mildew-proof coating is provided on the surface of the second decorative panel layer.

[0046] As an example, the fireproof board plays a role in preliminary flame retardation. The fireproof panel is preferably 5 millimeters thick. The fireproof board is also known as a refractory board, and its scientific name is thermosetting resin impregnated paper high-pressure laminate; a fireproof coating is applied to the outside of the fireproof board.

[0047] In an embodiment of the present application, the fireproof door core board 10 is made of magnesium oxide, magnesium chloride, magnesium sulfate, perlite, and a foaming agent. The ratio of magnesium oxide, magnesium chloride, magnesium sulfate, and perlite is preferably 1.5:1:1:1.2.

[0048] In an embodiment of the present application, a flame-retardant wood skeleton 12 is provided inside the door leaf 2. The flame-retardant wood skeleton 12 has the same thickness as the fireproof door core board 10 and surrounds the fireproof door core board 10 in a ring shape.

[0049] In an embodiment of the present application, a fireproof lock 3 is provided in the middle of one side of the door leaf 2; a handle is provided outside the fireproof lock 3. A sealing member 7 is provided at the position where the outer circle of the door leaf 2 is connected to the door frame 1; at least two grooves for increasing friction are provided on the surface of the sealing member 7. The sealing member 7 is a fireproof expansion sealing member 7, and the grooves of the sealing member 7 are very fine, so as to increase friction.

[0050] As an example, the fireproof lock 3 is an anti-theft lock, so as to prevent unauthorized personnel from entering and leaving at will during normal use.

[0051] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0052] Finally, it should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of another identical element in the process, method, article or terminal device comprising the element.

[0053] The above has introduced in detail a fire door with a door viewer provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A fire door with a door mirror, characterized in that: It comprises a door leaf and a door frame; the outer side of the door leaf wraps the door frame, and one side of the door leaf is hinged to the door frame; One side of the door leaf is the non-fire side, and the other side of the door leaf is the fire side; the non-fire side is provided with a door mirror assembly; the door mirror assembly comprises an upper door mirror, a lower door mirror and a milling groove; The upper door mirror and the lower door mirror are symmetrically arranged, and the milling groove is arranged around the upper door mirror and the lower door mirror; an electric heating film is arranged on the inner side of the door mirror assembly to prevent the door mirror assembly from fogging; The side of the electric heating film away from the door mirror assembly is provided with sound-absorbing cotton.

2. The fireproof door with door mirror according to claim 1, characterized in that: The door leaf comprises a first decorative panel layer, a first flame retardant medium density fiberboard layer, a first fireproof board layer, a fireproof door core board, a steel board layer, a second fireproof board layer, a second flame retardant medium density fiberboard layer and a second decorative panel layer which are arranged in sequence; One side of the first decorative panel layer is the non-fire side, and one side of the second decorative panel layer is the fire-exposed side; the door mirror assembly is arranged on the outer side of the first decorative panel layer.

3. The fireproof door with door mirror according to claim 2, characterized in that: The surface of the second decorative panel layer is provided with an anti-mildew coating.

4. The fireproof door with door mirror according to claim 2, characterized in that: The fireproof door core board is provided with reinforcing ribs alternately arranged horizontally and vertically inside; wherein the reinforcing ribs are steel bars with a diameter of 6 mm.

5. The fireproof door with door mirror according to claim 2, characterized in that: The thickness of the first flame retardant medium density fiberboard layer is 3 mm, and the thickness of the second flame retardant medium density fiberboard layer is 5 mm; The first flame retardant medium density fiberboard layer and the second flame retardant medium density fiberboard layer are both made of plant fiber, flame retardant glue and waterproofing agent.

6. The fireproof door with door mirror according to claim 2, characterized in that: A flame retardant wood frame is arranged around the fire door core; the thickness of the flame retardant wood frame is the same as that of the fire door core.

7. The fireproof door with door mirror according to claim 1, characterized in that: The sound-absorbing cotton is made of nylon fiber.

8. The fireproof door with door mirror according to claim 1, characterized in that: The electric heating film is a nickel-chromium resistance layer.

9. The fireproof door with door mirror according to claim 1, characterized in that: The door leaf is provided with a fireproof lock; the fireproof lock is arranged in the middle of the door leaf.

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