Fireproof door with fireproof glass

Abstract

The embodiment of the utility model provides a fireproof door with fireproof glass. The fireproof 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. Fireproof glass is arranged in the middle of the door leaf, and the area of the fireproof glass is smaller than or equal to one fifth of the area of the door leaf. The fireproof glass is connected with the door leaf through a glazing bead; the fireproof glass comprises a first tempered glass layer, a first float glass layer, a flame-retardant gel layer, a first float glass layer and a second tempered glass layer which are sequentially arranged. Wherein the thickness of the second toughened glass layer is greater than that of the first toughened glass layer; the first float glass layer and the second float glass layer form a space for accommodating the flame-retardant gel layer; a semi-circular groove used for increasing the connection strength is formed in the position where the fireproof glass is connected with the glazing bead, and the semi-circular groove surrounds the periphery of the fireproof glass. The fireproof door has the advantages of permeability and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a fire door with a fireproof glass. 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 partition 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 also has the function of preventing 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 current fire doors on the market are not permeable. One cannot see the situation inside the door from outside, nor can one see the situation outside the door from inside. When an emergency occurs, it is impossible to check. Content 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 fireproof glass that can overcome or at least partially solve the above problems:

[0005] A fire door with a fireproof glass 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] A fireproof glass is provided in the middle of the door leaf, and the area of the fireproof glass is less than or equal to one-fifth of the area of the door leaf; the fireproof glass and the door leaf are connected by a glass bead;

[0007] The fireproof glass includes a first tempered glass layer, a first float glass layer, a flame retardant gel layer, a first float glass layer and a second tempered glass layer arranged in sequence; wherein, the thickness of the second tempered glass layer is greater than that of the first tempered glass layer; the first float glass layer and the second float glass layer form a space for accommodating the flame retardant gel layer;

[0008] A semi-circular groove for increasing the connection strength is provided at the position where the fireproof glass is connected to the glass bead, and the semi-circular groove surrounds the circumference of the fireproof glass.

[0009] Preferably, the door leaf includes a steel frame, and a fireproof panel and a fireproof door core board wrapped inside the steel frame;

[0010] The fireproof panel is connected to the fireproof door core board, and the thickness of the fireproof door core board ranges from 40 to 45 millimeters; the thickness range of the fireproof panel is 2 to 5 millimeters.

[0011] Preferably, granular flame retardants are filled inside the fireproof door core board;

[0012] The fireproof door core board is made of magnesium oxide, magnesium chloride, magnesium sulfate and perlite.

[0013] Preferably, a skeleton is provided inside the door leaf;

[0014] The skeleton includes an outer skeleton and an inner skeleton, and the inner skeleton is arranged inside the outer skeleton.

[0015] Preferably, at least four shock-absorbing springs are provided inside the glass bead; wherein, the shock-absorbing springs are arranged at equal intervals.

[0016] Preferably, the flame retardant gel is formed by mixing an antifoaming agent, a phosphoric acid-based flame retardant and a boron-based flame retardant.

[0017] Preferably, a fireproof lock is provided in the middle of one side of the door leaf; a handle is provided outside the fireproof lock.

[0018] Preferably, a sealing member is provided at the position where the outer ring of the door leaf is connected to the door frame;

[0019] At least two grooves for increasing friction are provided on the surface of the sealing member.

[0020] Preferably, one side of the door leaf is connected to the door frame through a hinge.

[0021] The present application specifically includes the following advantages:

[0022] In the embodiments of the present application, compared with the situation in the prior art where "but currently, the fire doors on the market do not have permeability, and one cannot see inside the door from outside, nor can one see outside the door from inside", the present application provides a solution of "a fireproof glass is provided in the middle of the door leaf, and the area of the fireproof glass is less than or equal to one-fifth of the area of the door leaf;". Specifically, it 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; a fireproof glass is provided in the middle of the door leaf, and the area of the fireproof glass is less than or equal to one-fifth of the area of the door leaf; the fireproof glass and the door leaf are connected by a glass bead; the fireproof glass includes a first tempered glass layer, a first float glass layer, a flame retardant gel layer, a first float glass layer, and a second tempered glass layer arranged in sequence; wherein, the thickness of the second tempered glass layer is greater than that of the first tempered glass layer; the first float glass layer and the second float glass layer form a space for accommodating the flame retardant gel layer; a semi-circular groove for increasing the connection strength is provided at the position where the fireproof glass is connected to the glass bead, and the semi-circular groove surrounds the circumference of the fireproof glass. The problem of "but currently, the fire doors on the market do not have permeability, and one cannot see inside the door from outside, nor can one see outside the door from inside" is solved by the fireproof glass, making the fire door have advantages such as permeability. While designing the fireproof glass in the present application, the area ratio of the fireproof glass is designed so that the fireproof effect of the overall fire door is still within the preset range. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the present application, the drawings required for use in the description of the present application will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 is a schematic structural diagram of a fire door with a fireproof glass according to the present invention;

[0025] Figure 2 is a fire door with a fireproof glass according to the present invention Figure 1 in the cross-sectional structural diagram in the A-A direction;

[0026] Figure 3 is Figure 2 a schematic structural diagram of local details;

[0027] Figure 4 is a fire door with a fireproof glass according to the present invention Figure 1 in the cross-sectional structural diagram in the B-B direction;

[0028] Figure 5It is a sectional structure schematic diagram of a fire door with fireproof glass of the present utility model in the Figure 1 C-C direction;

[0029] Figure 6 It is a structural schematic diagram of the skeleton of a fire door with fireproof glass of the present utility model;

[0030] Figure 7 It is a structural schematic diagram of the large sample of the skeleton of a fire door with fireproof glass of the present utility model;

[0031] Figure 8 It is a structural schematic diagram of the large sample of the viewport bead of a fire door with fireproof glass of the present utility model;

[0032] 1. Door frame; 2. Door leaf; 21. Steel frame; 3. Hinge; 4. Fireproof lock; 5. Glass bead; 6. Fireproof glass; 7. Fire door core board; 8. Fireproof panel; 9. Skeleton; 10. Sealing member. Specific embodiments

[0033] To make the objectives, 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 part of the embodiments of the present application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0034] The inventor found through analysis of the prior art that: However, the fire doors on the current market are not transparent, and the situation inside the door cannot be seen from outside the door, nor can the situation outside the door be seen from inside the door. When an emergency occurs, it is impossible to check.

[0035] When designing the fireproof glass in this application, the area ratio of the fireproof glass is designed so that the fireproof effect of the overall fire door remains within the preset range. While having a fireproof effect, it has the maximum transparency. If the area of the fireproof glass is too small, the transparency is insufficient and the aesthetics are insufficient; if the area of the fireproof glass is too large, the fireproof strength of the fire door is reduced. The advantage of the fire door with fireproof glass in this application is that it provides the maximum transparency while ensuring the fireproof effect.

[0036] In an embodiment of the present application, compared with the situation in the prior art where "fire doors on the current market do not have permeability, one cannot see inside the door from outside, nor can one see outside the door from inside", the present application provides a solution of "a fireproof glass 6 is provided in the middle of the door leaf 2, and the area of the fireproof glass 6 is less than or equal to one-fifth of the area of the door leaf 2", specifically: including a door leaf 2 and a door frame 1; the outside 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; a fireproof glass 6 is provided in the middle of the door leaf 2, and the area of the fireproof glass 6 is less than or equal to one-fifth of the area of the door leaf 2; the fireproof glass 6 and the door leaf 2 are connected by a glass bead 5; the fireproof glass 6 includes a first tempered glass layer, a first float glass layer, a flame retardant gel layer, a first float glass layer, and a second tempered glass layer arranged in sequence; wherein, the thickness of the second tempered glass layer is greater than the thickness of the first tempered glass layer; the first float glass layer and the second float glass layer form a space for accommodating the flame retardant gel layer; a semi-circular groove for increasing the connection strength is provided at the position where the fireproof glass 6 is connected to the glass bead 5, and the semi-circular groove surrounds the circumference of the fireproof glass 6. The problem of "fire doors on the current market do not have permeability, one cannot see inside the door from outside, nor can one see outside the door from inside" is solved by the fireproof glass 6, making the fire door have advantages such as permeability. While designing the fireproof glass 6 in the present application, for the fireproof glass 6.

[0037] Referring to Figures 1-8 , a schematic structural view of a fire door with a fireproof glass 6 according to the present utility model is shown, which specifically may include the following structure: including a door leaf 2 and a door frame 1; the outside 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; a fireproof glass 6 is provided in the middle of the door leaf 2, and the area of the fireproof glass 6 is less than or equal to one-fifth of the area of the door leaf 2; the fireproof glass 6 and the door leaf 2 are connected by a glass bead 5; the fireproof glass 6 includes a first tempered glass layer, a first float glass layer, a flame retardant gel layer, a first float glass layer, and a second tempered glass layer arranged in sequence; wherein, the thickness of the second tempered glass layer is greater than the thickness of the first tempered glass layer; the first float glass layer and the second float glass layer form a space for accommodating the flame retardant gel layer; a semi-circular groove for increasing the connection strength is provided at the position where the fireproof glass 6 is connected to the glass bead 5, and the semi-circular groove surrounds the circumference of the fireproof glass 6.

[0038] It should be noted that the width of a fire door with a fireproof glass 6 in the present application is 1200 millimeters, and the height is twice the width, specifically 2400 millimeters.

[0039] Next, a fire door with a fireproof glass 6 in the present exemplary embodiment will be further described.

[0040] 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 3.

[0041] As an example, the door frame 1 is made of cold-rolled hot-dip galvanized steel sheet with a thickness of 1.2 mm. The door frame 1 is designed to be hollow to reduce the overall weight, and its shape is "L". The upper bottom length of the door frame 1 is 50 mm, the lower bottom length is 32 mm, the width of the door frame 1 is 100 mm, and the distance between the door frame 1 and the door leaf 2 is 2 mm.

[0042] It should be noted that cold rolling uses hot-rolled steel coils as raw materials. After pickling to remove the oxide scale, cold tandem 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 index decrease. Therefore, the stamping performance will deteriorate, and it can only be used for parts with simple deformation. Cold-rolled hard coils can be used as raw materials for hot-dip galvanizing plants because all hot-dip galvanizing units are equipped with annealing lines. Hot-dip galvanizing is when an iron workpiece is immersed in molten zinc, first a solid solution of zinc and α-iron (body-centered) is formed at the interface. This is a crystal formed by zinc atoms dissolved in the matrix metal iron in the solid state. The two metal atoms are fused, and the attraction between the atoms is relatively small. Therefore, when zinc reaches saturation in the solid solution, zinc and iron atoms diffuse into each other. The zinc atoms diffused into (or infiltrated into) the iron matrix migrate in the matrix lattice and gradually form an alloy with iron.

[0043] In a specific embodiment, the door frame 1 wraps the door leaf 2 and is in the shape of a square ring as a whole. The door frame 1 is flush with the outer side of the fire door.

[0044] In an embodiment of the present application, the door leaf 2 includes a steel frame 21, and a fireproof panel 8 and a fireproof door core board 7 wrapped inside the steel frame 21; the fireproof panel 8 is connected to the fireproof door core board 7, and the thickness of the fireproof door core board 7 ranges from 40 to 45 mm; the thickness range of the fireproof panel 8 is 2 to 5 mm.

[0045] As an example, the steel frame 21 is made of cold-rolled hot-dip galvanized steel sheet with a thickness of 0.8 mm. The steel frame 21 wraps the fireproof panel 8 and the fireproof door core board 7, thus playing a preliminary flame-retardant role. The fireproof panel 8 is preferably 3 mm thick. The fireproof board is also known as refractory board, and its scientific name is thermosetting resin impregnated paper high-pressure laminate; the outside of the fireproof board is coated with a fireproof coating.

[0046] In an embodiment of the present application, the fireproof door core board 7 is filled with granular flame retardant inside; the fireproof door core board 7 is made of magnesium oxide, magnesium chloride, magnesium sulfate, and perlite.

[0047] In a specific embodiment, the fire door core board 7 further includes a foaming agent, and 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 skeleton 9 is provided inside the door leaf 2; the skeleton 9 includes an outer skeleton 9 and an inner skeleton 9, and the inner skeleton 9 is disposed inside the outer skeleton 9. The width of the outer skeleton 9 is 1112 millimeters, and the length is 2322 millimeters; the width of the inner skeleton 9 is 240 millimeters, and the length of the inner skeleton 9 is 1840 millimeters. The outer skeleton 9 supports the overall frame of the door leaf 2, and the inner skeleton 9 supports the position connected to the fireproof glass 6. Both the outer skeleton 9 and the inner skeleton 9 are made of 1.2-millimeter cold-rolled hot-dip galvanized steel sheets.

[0049] In an embodiment of the present application, a fireproof lock 4 is provided in the middle of one side of the door leaf 2; a handle is provided outside the fireproof lock 4. A seal 10 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 seal 10. The seal 10 is a fireproof expansion seal 10, and the grooves of the seal 10 are very fine, so as to increase friction.

[0050] In an embodiment of the present application, a fireproof glass 6 is provided in the middle of the door leaf 2, and the area of the fireproof glass 6 is less than or equal to one-fifth of the area of the door leaf 2; the fireproof glass 6 and the door leaf 2 are connected by a glass bead 5; the fireproof glass 6 includes a first tempered glass layer, a first float glass layer, a flame retardant gel layer, a first float glass layer, and a second tempered glass layer arranged in sequence; wherein, the thickness of the second tempered glass layer is greater than the thickness of the first tempered glass layer; the first float glass layer and the second float glass layer form a space for accommodating the flame retardant gel layer. Preferably, the height of the light-transmitting size of the fireproof glass 6 is 1800 millimeters, and the width is 200 millimeters; the overall size of the fireproof glass 6 is 230 millimeters in height and 1830 millimeters in width. Because a part needs to be pressed by the glass bead 5 around the perimeter, the overall size of the fireproof glass 6 is smaller than the light-transmitting size.

[0051] It should be noted that the opening size left for the fireproof glass 6 by the fire door is 240 millimeters in width and 1840 millimeters in height.

[0052] As an example, both the first float glass layer and the second float glass layer are 5 millimeters, wrapping the flame retardant gel, and there is an antifoaming agent in the flame retardant gel. The first float glass layer and the second float glass layer ensure that the flame retardant gel layer does not leak out, and then the first tempered glass layer and the second tempered glass layer are used for reinforcement.

[0053] In an embodiment of the present application, at least four shock-absorbing springs are provided inside the glass bead 5; wherein, the shock-absorbing springs are arranged at equal intervals. The outside of the glass bead 5 is made of 0.8-mm cold-rolled hot-dip galvanized steel sheet, and the inside is filled with glass glue. The shock-absorbing springs are provided inside the glass glue, thereby making the fireproof glass 6 more stable.

[0054] In an embodiment of the present application, the flame-retardant gel is formed by mixing an antifoaming agent, a phosphoric acid-based flame retardant, and a boron-based flame retardant. The antifoaming agent is added because bubbles will be generated when water and potassium silicate are stirred and mixed. During lamination, the bubbles will exist in the fireproof gel, making the appearance of the composite fireproof glass 6 unattractive. Adding the antifoaming agent can eliminate these bubbles and improve the appearance of the fireproof glass 6. The antifoaming agent used in this application is a polyether-modified silicone antifoaming agent with properties similar to the main components of the flame-retardant gel layer.

[0055] As an example, the flame-retardant gel may also include a phosphorus flame retardant, a nitrogen flame retardant, a boron flame retardant, a halogen flame retardant, and a mixture of two or more selected from these. Among them, boron-based flame retardants and / or phosphoric acid-based flame retardants are preferred. Examples of boron-based flame retardants include boric acid, sodium borate (borax), ammonium borate, etc. Examples of phosphoric acid flame retardants include diammonium hydrogen phosphate, ammonium dihydrogen phosphate, etc.

[0056] In an embodiment of the present application, a semi-circular groove for increasing the connection strength is provided at the position where the fireproof glass 6 is connected to the glass bead 5, and the semi-circular groove surrounds the circumference of the fireproof glass 6.

[0057] 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 know the basic creative concepts. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0058] Finally, it should also 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 additional identical elements in the process, method, article or terminal device comprising the element.

[0059] The above has introduced in detail a fire door with fireproof glass 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 fireproof glass, 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; A fireproof glass is provided in the middle of the door leaf, and the area of ​​the fireproof glass is less than or equal to one fifth of the area of ​​the door leaf; the fireproof glass and the door leaf are connected by a glass molding; The fireproof glass comprises a first tempered glass layer, a first float glass layer, a flame retardant gel layer, a second float glass layer and a second tempered glass layer which are arranged in sequence; wherein the thickness of the second tempered glass layer is greater than the thickness of the first tempered glass layer; the first float glass layer and the second float glass layer form a space for accommodating the flame retardant gel layer; A semicircular groove for increasing the connection strength is provided at the position where the fireproof glass is connected to the glass molding, and the semicircular groove surrounds the circumference of the fireproof glass.

2. The fireproof door with fireproof glass according to claim 1, characterized in that: The door leaf comprises a steel frame, and a fireproof panel and a fireproof door core board wrapped in the steel frame; The fireproof panel is connected to the fireproof door core board, the thickness of the fireproof door core board ranges from 40 to 45 mm; the thickness of the fireproof panel ranges from 2 to 5 mm.

3. The fireproof door with fireproof glass according to claim 2, characterized in that: The fireproof door core board is filled with granular flame retardant; The fireproof door core board is made of magnesium oxide, magnesium chloride, magnesium sulfate and perlite.

4. The fireproof door with fireproof glass according to claim 1, characterized in that: A frame is provided inside the door leaf; The frame includes an outer frame and an inner frame, and the inner frame is arranged inside the outer frame.

5. The fireproof door with fireproof glass according to claim 1, characterized in that: At least four shock absorbing springs are arranged in the glass bead; wherein the shock absorbing springs are arranged at equal intervals.

6. The fireproof door with fireproof glass according to claim 1, characterized in that: The flame retardant gel is prepared by mixing a defoamer, a phosphoric acid-based flame retardant and a boron-based flame retardant.

7. The fireproof door with fireproof glass according to claim 1, characterized in that: A fireproof lock is provided in the middle of one side of the door leaf; a handle is provided on the outer side of the fireproof lock.

8. The fireproof door with fireproof glass according to claim 1, characterized in that: A sealing member is provided at the position where the outer ring of the door leaf is connected to the door frame; The surface of the sealing element is provided with at least two grooves for increasing friction.

9. The fireproof door with fireproof glass according to claim 1, characterized in that: One side of the door leaf is connected to the door frame via a hinge.

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