Fireproof door leaf and fireproof door structure

Abstract

The utility model relates to the technical field of fireproof doors, and discloses a fireproof door leaf and a fireproof door structure, the fireproof door leaf comprises a perlite layer unit, and a first fireproof plate layer, a second fireproof plate layer, a third fireproof plate layer and a fourth fireproof plate layer which are arranged in sequence, one end of the perlite layer unit is arranged between the first fireproof plate layer and the fourth fireproof plate layer, and the other end of the perlite layer unit is arranged between the second fireproof plate layer and the third fireproof plate layer. One ends of the perlite layer units are arranged between the first fireproof plate layer and the second fireproof plate layer, the other ends of the perlite layer units are arranged between the second fireproof plate layer and the third fireproof plate layer, keel units are arranged between the second fireproof plate layer and the third fireproof plate layer, and the keel units, the second fireproof plate layer and the third fireproof plate layer are arranged between every two adjacent perlite layer units. The fireproof door leaf is good in structural strength and high in fireproof and heat insulation reliability.

Description

Technical Field

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

[0002] As one of the measures for building fire separation, the fire door leaf is usually used on firewalls, stairwell entrances or pipe well openings, and is required to isolate smoke and fire. The fire door leaf plays an important role in preventing the spread and extension of smoke and fire and reducing losses.

[0003] However, the existing fire door leaf has poor strength. Once the fireproof layer is damaged, the fireproof function is greatly weakened, and the fireproof and heat insulation capabilities also need to be improved. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a fire door leaf with good structural strength and high reliability in fireproofing and heat insulation.

[0005] To solve the above technical problem, the utility model provides a fire door leaf, which includes a perlite layer unit, and a first fireproof board layer, a second fireproof board layer, a third fireproof board layer, and a fourth fireproof board layer arranged in sequence. One end of the perlite layer unit is arranged between the first fireproof board layer and the fourth fireproof board layer, and the other end of the perlite layer unit is arranged between the second fireproof board layer and the third fireproof board layer. A keel unit is arranged between the second fireproof board layer and the third fireproof board layer, and the keel unit, the second fireproof board layer, and the third fireproof board layer are all arranged between two adjacent perlite layer units.

[0006] As an improvement of the above solution, the cross-section of the keel unit is U-shaped, and the keel unit is provided with a strip-shaped groove.

[0007] As an improvement of the above solution, at least one end of the perlite layer unit is provided with a convex platform adapted to the strip-shaped groove, and the convex platform is embedded in the strip-shaped groove.

[0008] As an improvement of the above solution, it further includes a fifth fireproof board layer, which is arranged around the first fireproof board layer and is located between the first fireproof board layer and the fourth fireproof board layer, and the fifth fireproof board layer is attached to the second fireproof board layer, the third fireproof board layer and the keel unit.

[0009] As an improvement of the above solution, a bottom gate is further arranged between the first fireproof board layer and the fourth fireproof board layer, a sixth fireproof board is arranged between the bottom gate and the first fireproof board layer, and a seventh fireproof board is arranged between the bottom gate and the fourth fireproof board layer.

[0010] As an improvement of the above solution, it also includes a first fireproof strip, which is attached to a side of the fifth fireproof board layer away from the perlite layer unit.

[0011] As an improvement of the above solution, the keel unit includes a transverse keel unit and a longitudinal keel unit, and the transverse keel unit and the longitudinal keel unit are cross-arranged.

[0012] In addition, the utility model also provides a fireproof door structure, which includes the above-mentioned fireproof door leaf and a fireproof door frame hinged to the fireproof door leaf.

[0013] As an improvement of the above-mentioned scheme, the fireproof door frame includes a first frame body, a second frame body, a frame back reinforcement sheet and an eighth fireproof board layer, the first frame body and the frame back reinforcement sheet form a first cavity, the second frame body and the frame back reinforcement sheet form a second cavity, the eighth fireproof board layer is arranged between the first frame body and the second frame body, and flame-retardant materials are provided in the first cavity and the second cavity.

[0014] As an improvement of the above-mentioned scheme, the fireproof door frame also includes a second fireproof strip and a fireproof smoke barrier strip. The distance between the side of the second frame body facing away from the frame back reinforcement sheet and the frame back reinforcement sheet is greater than the distance between the side of the first frame body facing away from the frame back reinforcement sheet and the frame back reinforcement sheet. The second fireproof strip and the fireproof smoke barrier strip are both arranged on the side of the eighth fireproof board layer facing away from the frame back reinforcement sheet. The two ends of the second fireproof strip are respectively bonded to the first frame body and the fireproof smoke barrier strip, and the fireproof smoke barrier strip is bonded to the second frame body.

[0015] The implementation of this utility model has the following beneficial effects:

[0016] The utility model discloses a fireproof door leaf, which is formed by arranging a keel unit and a second fireproof board layer and a third fireproof board layer between two adjacent perlite layer units, the keel unit is arranged between the second fireproof board layer and the third fireproof board layer, so that the first fireproof board layer, the second fireproof board layer, the third fireproof board layer and the fourth fireproof board are arranged in sequence, one end of the perlite layer unit is arranged between the first fireproof board layer and the fourth fireproof board layer, and the other end is arranged between the second fireproof board layer and the third fireproof board layer, so that the formed fireproof door leaf has good structural strength, and the multi-layer protection structure between two adjacent perlite layer units has high reliability of fire prevention and heat insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the longitudinal cross-sectional structure of an embodiment of a fireproof door leaf of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of an embodiment of a fire door structure of the utility model;

[0019] Figure 3 is Figure 2 a longitudinal sectional structure schematic diagram of the fire door structure shown;

[0020] Figure 4 is Figure 2 or Figure 3 a sectional structure schematic diagram of the fire door frame shown. Specific embodiments

[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] As Figure 1 and Figure 2 shown, the present utility model provides an embodiment of a fire door leaf, including a perlite layer unit 11, and a first fireproof board layer 12, a second fireproof board layer 13, a third fireproof board layer 14, and a fourth fireproof board layer 15 arranged in sequence. One end of the perlite layer unit 11 is arranged between the first fireproof board layer 12 and the fourth fireproof board layer 15, and the other end of the perlite layer unit 11 is arranged between the second fireproof board layer 13 and the third fireproof board layer 14. A keel unit 16 is arranged between the second fireproof board layer 13 and the third fireproof board layer 14, and the keel unit 16, the second fireproof board layer 13, and the third fireproof board layer 14 are all arranged between two adjacent perlite layer units 11.

[0023] In this embodiment, by arranging the keel unit 16, the second fireproof board layer 13, and the third fireproof board layer 14 between two adjacent perlite layer units 11, with the keel unit 16 arranged between the second fireproof board layer 13 and the third fireproof board layer 14, the first fireproof board layer 12, the second fireproof board layer 13, the third fireproof board layer 14, and the fourth fireproof board are arranged in sequence. One end of the perlite layer unit 11 is arranged between the first fireproof board layer 12 and the fourth fireproof board layer 15, and the other end is arranged between the second fireproof board layer 13 and the third fireproof board layer 14, forming a fire door leaf with good structural strength, and the multi-layer protection structure between two adjacent perlite layer units 11 makes the fireproof and heat-insulating reliability high.

[0024] The first fireproof board layer 12, the second fireproof board layer 13, the third fireproof board layer 14, and the fourth fireproof board layer 15 of this embodiment are all preferably light calcium fireproof boards.

[0025] The cross-section of the keel unit 16 in this embodiment is U-shaped. The keel unit 16 is provided with a strip-shaped groove, and at least one end of the perlite layer unit 11 is provided with a boss 111 adapted to the strip-shaped groove, and the boss 111 is embedded in the strip-shaped groove, making the fireproof and heat-insulating structure more stable.

[0026] The keel unit 16 is processed from metal profiles and includes a transverse keel unit and a longitudinal keel unit, and the transverse keel unit and the longitudinal keel unit are arranged crosswise. Preferably, the transverse keel unit and the longitudinal keel unit are fixedly connected to make the overall structure of the fire door leaf more stable and not easily deformed.

[0027] To improve the fire resistance performance around the fire door leaf, the fire door leaf of this embodiment further includes a fifth fireproof board layer 17, which is arranged around the first fireproof board layer 12 and is located between the first fireproof board layer 12 and the fourth fireproof board layer 15. The fifth fireproof board layer 17 is attached to the second fireproof board layer 13, the third fireproof board layer 14 and the keel unit 16.

[0028] In this embodiment, a bottom shutter 18 is further provided below the fifth fireproof board layer 17. The bottom shutter 18 is equipped with a smoke-proof strip that can protrude towards the bottoms of the first fireproof board layer 12 and the fourth fireproof board layer 15 to prevent smoke from spreading to the other side of the fire door leaf. The smoke-proof strip is made of a flame-retardant material. The bottom shutter 18 is located between the first fireproof board layer 12 and the fourth fireproof board layer 15, and a sixth fireproof board 19 is provided between the bottom shutter 18 and the first fireproof board layer 12, and a seventh fireproof board 10 is provided between the bottom shutter 18 and the fourth fireproof board layer 15 to enhance the fire resistance performance around the bottom shutter 18.

[0029] Among them, the fire door leaf further includes a panel layer made of stainless steel material, which covers the first fireproof board layer 12, the fourth fireproof board layer 15, the fifth fireproof board layer 17 at the top, the sixth fireproof board 19 at the bottom, and the seventh fireproof board 10.

[0030] The fire door leaf of this embodiment further includes a first fireproof strip 101, and the first fireproof strip 101 is attached to the side of the fifth fireproof board layer 17 away from the perlite layer unit 11.

[0031] In addition, Figure 2 and Figure 3 , the present utility model further provides a fire door structure, which includes the above-mentioned fire door leaf 1 and a fire door frame 2 hinged to the fire door leaf 1.

[0032] The fire door frame 2 includes a first frame body 21, a second frame body 22, a frame back reinforcing piece 23 and an eighth fireproof board layer 24. The first frame body 21 and the frame back reinforcing piece 23 form a first chamber, the second frame body 22 and the frame back reinforcing piece 23 form a second chamber, the eighth fireproof board layer 24 is arranged between the first frame body 21 and the second frame body 22, and a flame-retardant material 25 is provided in both the first chamber and the second chamber. The flame-retardant material 25 is preferably cement.

[0033] In combination withFigure 4 , wherein, the fire door frame 2 further includes a second fire strip 26 and a fire and smoke isolation strip 27. The distance between the side of the second frame body 22 facing away from the frame back reinforcing piece 23 and the frame back reinforcing piece 23 is greater than the distance between the side of the first frame body 21 facing away from the frame back reinforcing piece 23 and the frame back reinforcing piece 23. The second fire strip 26 and the fire and smoke isolation strip 27 are both arranged on the side of the eighth fireproof board layer 24 facing away from the frame back reinforcing piece 23. The two ends of the second fire strip 26 are respectively in contact with the first frame body 21 and the fire and smoke isolation strip 27, and the fire and smoke isolation strip 27 is in contact with the second frame body 22. When the fire door leaf is closed, the first fire strip 101 is opposite to the second fire strip 26.

[0034] Wherein, both the fire and smoke isolation strip 27 and the second fire strip 26 are made of a flame retardant material 25. Compared with the second fire strip 26, the fire and smoke isolation strip 27 is further provided with an elastic convex structure for contacting the fire door leaf 1. The elastic convex structure of the fire and smoke isolation strip 27 is in contact with and sealed to the surface of the fire door leaf 1, achieving the effect of fire and smoke isolation.

[0035] The above-disclosed is only a preferred embodiment of the present invention, and of course, it cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A fire door leaf, characterized in that, It includes a perlite layer unit, and a first fireproof board layer, a second fireproof board layer, a third fireproof board layer, and a fourth fireproof board layer arranged in sequence. One end of the perlite layer unit is arranged between the first fireproof board layer and the fourth fireproof board layer, and the other end of the perlite layer unit is arranged between the second fireproof board layer and the third fireproof board layer. A keel unit is arranged between the second fireproof board layer and the third fireproof board layer, and the keel unit, the second fireproof board layer, and the third fireproof board layer are all arranged between two adjacent perlite layer units.

2. The fireproof door leaf according to claim 1, characterized in that, The cross-section of the keel unit is U-shaped, and the keel unit is provided with a strip-shaped groove.

3. The fireproof door leaf according to claim 2, characterized in that, At least one end of the perlite layer unit is provided with a boss adapted to the strip-shaped groove, and the boss is embedded in the strip-shaped groove.

4. The fireproof door leaf according to claim 1, characterized in that, It further includes a fifth fireproof board layer, and the fifth fireproof board layer is arranged around the first fireproof board layer and is located between the first fireproof board layer and the fourth fireproof board layer. The fifth fireproof board layer is in contact with the second fireproof board layer, the third fireproof board layer, and the keel unit.

5. The fireproof door leaf according to claim 1, characterized in that, A bottom shutter is further arranged between the first fireproof board layer and the fourth fireproof board layer. A sixth fireproof board is arranged between the bottom shutter and the first fireproof board layer, and a seventh fireproof board is arranged between the bottom shutter and the fourth fireproof board layer.

6. The fire door leaf according to claim 4, characterized in that, It further includes a first fireproof strip, and the first fireproof strip is in contact with the side of the fifth fireproof board layer away from the perlite layer unit.

7. The fireproof door leaf according to claim 1, wherein, The keel unit includes a transverse keel unit and a longitudinal keel unit, and the transverse keel unit and the longitudinal keel unit are arranged crosswise.

8. A fire door structure, characterized in that, It includes a fireproof door leaf according to any one of claims 1 to 7, and a fireproof door frame hinged to the fireproof door leaf.

9. The fire door structure according to claim 8, characterized in that, The fireproof door frame includes a first frame body, a second frame body, a frame back reinforcement piece, and an eighth fireproof board layer. The first frame body and the frame back reinforcement piece form a first cavity, the second frame body and the frame back reinforcement piece form a second cavity, the eighth fireproof board layer is arranged between the first frame body and the second frame body, and flame retardant materials are arranged in both the first cavity and the second cavity.

10. The fire door structure according to claim 9, characterized in that, The fireproof door frame further includes a second fireproof strip and a fireproof smoke partition strip. The distance between the side of the second frame body away from the frame back reinforcement piece and the frame back reinforcement piece is greater than the distance between the side of the first frame body away from the frame back reinforcement piece and the frame back reinforcement piece. The second fireproof strip and the fireproof smoke partition strip are both arranged on the side of the eighth fireproof board layer away from the frame back reinforcement piece. The two ends of the second fireproof strip are respectively in contact with the first frame body and the fireproof smoke partition strip, and the fireproof smoke partition strip is in contact with the second frame body.

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