Door leaf framework and fireproof door

Abstract

The utility model relates to the technical field of fireproof doors, and discloses a door leaf skeleton and a fireproof door, the door leaf skeleton comprises an outer frame and an internal keel assembly enclosed by the outer frame, the outer frame is enclosed by a positioning keel and a bottom keel arranged at the bottom of the internal keel assembly, the positioning keel is provided with a first positioning groove opened towards the internal keel assembly, the bottom keel is provided with a mounting groove opened towards the side deviating from the internal keel assembly, and a smoke-proof strip is arranged in the mounting groove. The door leaf framework is good in structural strength and stability, and helps to improve the fireproof and smoke-proof reliability of the fireproof door.

Description

Technical Field

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

[0002] Fire doors are one of the fire separation measures for buildings. They are usually used on firewalls, stairwell entrances and exits, or pipe well openings. They are required to be able to isolate smoke and fire. Fire doors play an important role in preventing the spread and extension of smoke and fire and reducing losses.

[0003] However, the existing fire doors have poor strength, and their fire and smoke resistance capabilities need to be improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a door leaf frame with good structural strength and stability, which helps to improve the fireproof and smokeproof reliability of the fireproof door.

[0005] In order to solve the above technical problems, the utility model provides a door leaf frame, including an outer frame and an internal keel assembly surrounded by the outer frame, the outer frame is composed of a positioning keel and a bottom keel arranged at the bottom of the internal keel assembly, the positioning keel is provided with a first positioning groove opened to the internal keel assembly, the bottom keel is provided with an installation groove opened to a side away from the internal keel assembly, and a smoke proof strip is provided in the installation groove.

[0006] As an improvement of the above solution, a first fireproof board and a second fireproof board are further provided in the installation groove, and the first fireproof board and the second fireproof board are both in contact with the bottom keel and are respectively provided on opposite sides of the anti-smoke strip.

[0007] As an improvement of the above solution, the positioning keel includes a top keel and two side keels arranged oppositely;

[0008] The internal keel assembly includes a transverse keel unit and a longitudinal keel unit, wherein the transverse keel unit and the longitudinal keel unit are cross-arranged, the transverse keel unit is connected to at least one of the side keels and the longitudinal keel unit, and the longitudinal keel unit is connected to the bottom keel and the top keel.

[0009] As an improvement of the above solution, the longitudinal keel unit is provided with a second positioning groove opened to one of the side keels.

[0010] As an improvement of the above solution, the transverse keel unit is provided with a third positioning groove arranged opposite to the top keel or the bottom keel.

[0011] As an improvement of the above solution, transverse keel units are provided on opposite sides of the longitudinal keel unit, one end of the transverse keel unit is connected to the longitudinal keel unit, and the other end is connected to the side keel.

[0012] As an improvement of the above solution, the cross-sections of the bottom keel, the top keel, the side keels, the transverse keel unit, and the longitudinal keel unit are all U-shaped.

[0013] As an improvement of the above solution, the bottoms of the two side keels are provided with accommodating grooves for the smoke-proof strips to pass through.

[0014] As an improvement of the above scheme, it also includes a first reinforcing plate, a second reinforcing plate and a third reinforcing plate. The first reinforcing plate is longitudinally arranged on the side of the side keel away from the internal keel, the second reinforcing plate is connected to the top keel and one of the side keels, and the third reinforcing plates are arranged in pairs on opposite sides of another side keel.

[0015] In addition, the utility model also provides a fireproof door, which includes the above-mentioned door leaf frame.

[0016] The implementation of this utility model has the following beneficial effects:

[0017] The utility model discloses a door leaf skeleton, which ensures the structural strength and stability of the fireproof door leaf by arranging an outer frame and an internal keel, and at the same time making the positioning keel of the outer frame arranged at a first positioning groove opened toward the internal keel component, so as to carry out zoned positioning and installation of fireproof materials; in addition, the bottom keel is arranged at an installation groove opened toward a side away from the internal keel component, and a smoke-proof strip that can protrude toward the bottom keel is arranged in the installation groove, thereby improving the fireproof and smoke-proof reliability of the fireproof door. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an embodiment of a door leaf frame of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the AA cross-section structure;

[0020] Figure 3 yes Figure 1 Schematic diagram of the BB cross-section structure;

[0021] Figure 4 yes Figure 1 Schematic diagram of CC cross-section structure;

[0022] Figure 5 yes Figure 1 Schematic diagram of the DD cross-sectional structure;

[0023] Figure 6 Is installed on Figure 1 A schematic diagram of the structure of the smoke-proof strip, the first fireproof board and the second fireproof board of the middle bottom keel;

[0024] Figure 7 It is a schematic diagram of the structure of the second side keel;

[0025] Figure 8 The utility model discloses a cross-sectional structural diagram of an embodiment of a fireproof door. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0027] like Figures 1 to 8 As shown, the utility model provides an embodiment of a door leaf skeleton, including an outer frame, and an internal keel assembly surrounded by the outer frame. Specifically, the outer frame is enclosed by a bottom keel 1 arranged at the bottom of the internal keel assembly, and a positioning keel formed by a top keel 2, a first side keel 3, and a second side keel 4. The top keel 2 and the bottom keel 1 are both fixedly connected to the first side keel 3 and the second side keel 4 arranged oppositely to form the above-mentioned outer frame. The positioning keel is provided with a first positioning groove opened to the internal keel assembly, that is, the top keel 2, the first side keel 3, and the second side keel 4 are all provided with a first positioning groove, and the bottom keel 1 is provided with an installation groove opened to the side away from the internal keel assembly, and a fireproof and smokeproof component is provided in the installation groove. The fireproof and smokeproof component includes a smokeproof strip 51 that can protrude toward the bottom keel 1.

[0028] The door leaf skeleton 10 of the present embodiment is provided with an outer frame and an internal keel, and at the same time, the positioning keel of the outer frame is provided with a first positioning groove opened to the internal keel assembly, so as to perform partitioned positioning and installation of the fireproof material, thereby ensuring the structural strength and stability of the fireproof door leaf; in addition, the bottom keel 1 is provided with an installation groove opened to the side away from the internal keel assembly, and a smoke-proof strip 51 that can protrude toward the bottom keel 1 is provided in the installation groove, thereby improving the fireproof and smoke-proof reliability of the fireproof door.

[0029] Combination Figure 6 In order to further improve the fire and smoke prevention performance of the bottom keel 1, the fire and smoke prevention components in the installation groove of this embodiment also include a first fire prevention board 52 and a second fire prevention board 53. The first fire prevention board 52 and the second fire prevention board 53 are preferably light calcium fire prevention boards, and the first fire prevention board 52 and the second fire prevention board 53 are both fitted with the bottom keel 1 and are arranged on opposite sides of the anti-smoke strip 51 to protect the middle smoke prevention board.

[0030] CombinationFigure 7 One end of the smoke prevention strip 51 passes through a first accommodation groove (not shown in the figure) provided at the bottom of each of the first side keels 3, and the other end of the smoke prevention strip 51 passes through a second accommodation groove 41 provided at the bottom of each of the second side keels 4, so as to facilitate the installation of the smoke prevention strip 51 at the bottom of the outer frame.

[0031] The internal keel assembly specifically includes a transverse keel unit 61 and a longitudinal keel unit 62, and the transverse keel unit 61 and the longitudinal keel unit 62 are arranged in a crosswise manner. Among them, the transverse keel unit 61 is connected to at least one of the first side keel 3, the second side keel 4, and the longitudinal keel unit 62, and the longitudinal keel unit 62 is connected to the bottom keel 1 and the top keel 2.

[0032] The cross sections of the bottom keel 1, the top keel 2, the first side keel 3, the second side keel 4, the transverse keel unit 61, and the longitudinal keel unit 62 in this embodiment are all U-shaped and have the same structural shape. This structure can facilitate the positioning and installation of fireproof materials, and at the same time ensure that each fireproof structure is closely fitted, so as to better play the fireproof effect.

[0033] In this embodiment, transverse keel units 61 are arranged on both opposite sides of the longitudinal keel unit 62. One end of the transverse keel unit 61 is connected to the longitudinal keel unit 62, and the other end is connected to the first side keel 3 or the second side keel 4.

[0034] The longitudinal keel unit 62 is provided with a second positioning groove opening towards the first side keel 3 or the second side keel 4, and the transverse keel unit 61 is provided with a third positioning groove facing the top keel 2 or the bottom keel 1. For the convenience of positioning and assembling fireproof materials, the cross sections of the first positioning groove, the second positioning groove, and the third positioning groove are all set to have the same structural dimensions.

[0035] For the convenience of installing functional components, the door leaf skeleton 10 of this embodiment further includes a first reinforcing plate 71, a second reinforcing plate 72, and a third reinforcing plate 73. Among them, the first reinforcing plate 71 is arranged longitudinally on the side of the second side keel 4 away from the inner keel for connecting with a hinge. The second reinforcing plate 72 is connected to the top keel 2 and the second side keel 4, and is preferably flush with the surfaces of the top keel 2 and the second side keel 4 to facilitate the installation of a door closer. The third reinforcing plates 73 are arranged in pairs on the opposite sides of the first side keel 3 to facilitate the installation of a lock. To enhance the stability of the third reinforcing plate 73, in this embodiment, an auxiliary longitudinal keel 81 is preferably arranged on the side of the third reinforcing plate 73 away from the first side keel 3 connected thereto. The two ends of the auxiliary longitudinal keel 81 are respectively connected to the transverse keel unit 61. Auxiliary transverse keels 82 are arranged on the upper and lower sides of the third reinforcing plate 73 respectively. The two ends of the auxiliary transverse keel 82 are respectively connected to the auxiliary longitudinal keel 81 and the first side keel 3. The third reinforcing plate 73 is fixedly welded to the auxiliary longitudinal keel 81, the auxiliary transverse keel 82, and the first side keel 3.

[0036] In addition, in combination with Figure 6 and Figure 8 , the present utility model also discloses a fire door, which includes a perlite layer unit 91 that is clamped with at least one of a first positioning groove, a second positioning groove, and a third positioning groove, a third fireproof board 92, a fourth fireproof board 93, a fifth fireproof board 94, a sixth fireproof board 95, and the above-mentioned door leaf skeleton 10. Adjacent two perlite layer units 91 are separated by a transverse keel unit 61 or a longitudinal keel unit 62. The opposite sides of the door leaf skeleton 10 are respectively covered by the third fireproof board 92 and the fourth fireproof board 93. The fifth fireproof board 94 is arranged between the third fireproof board 92 and the door leaf skeleton 10. The sixth fireproof board 95 is arranged between the door leaf skeleton 10 and the fourth fireproof board 93. One end of the perlite layer unit 91 is attached to the third fireproof board 92 and the fourth fireproof board 93, and the other end is attached to the fifth fireproof board 94 and the sixth fireproof board 95. Among them, at least one end of the perlite layer unit 91 is provided with a boss 911 adapted to the first positioning groove, the second positioning groove, or the third positioning groove. The boss 911 is embedded in the first positioning groove, the second positioning groove, or the third positioning groove, making the fireproof and heat-insulating structure more stable. The multi-layer protection structure between adjacent two perlite layer units 91 of this fire door makes the reliability of fire prevention and heat insulation high.

[0037] The above-disclosed is only a preferred embodiment of the present utility model. Of course, the scope of rights of the present utility model cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present utility model still fall within the scope covered by the present utility model.

Claims

1. A door leaf skeleton, characterized in that, It includes an outer frame and an internal keel assembly surrounded by the outer frame, the outer frame is surrounded by a positioning keel and a bottom keel arranged at the bottom of the internal keel assembly, the positioning keel is provided with a first positioning groove opened to the internal keel assembly, the bottom keel is provided with an installation groove opened to the side away from the internal keel assembly, and a smoke-proof strip is provided in the installation groove.

2. The door leaf frame according to claim 1, characterized in that, A first fireproof board and a second fireproof board are also provided in the installation groove. The first fireproof board and the second fireproof board are both in contact with the bottom keel and are provided on opposite sides of the smoke-proof strip.

3. The door leaf frame according to claim 1, wherein The positioning keel includes a top keel and two side keels arranged oppositely; The internal keel assembly includes a transverse keel unit and a longitudinal keel unit, wherein the transverse keel unit and the longitudinal keel unit are cross-arranged, the transverse keel unit is connected to at least one of the side keels and the longitudinal keel unit, and the longitudinal keel unit is connected to the bottom keel and the top keel.

4. The door leaf skeleton according to claim 3, wherein The longitudinal keel unit is provided with a second positioning groove opened toward one of the side keels.

5. The door leaf frame according to claim 3, characterized in that, The transverse keel unit is provided with a third positioning groove arranged opposite to the top keel or the bottom keel.

6. The door leaf skeleton according to claim 3, characterized in that, Transverse keel units are provided on opposite sides of the longitudinal keel unit. One end of the transverse keel unit is connected to the longitudinal keel unit, and the other end is connected to the side keel.

7. The door leaf frame according to claim 3, characterized in that, The cross sections of the bottom keel, the top keel, the side keels, the transverse keel unit, and the longitudinal keel unit are all U-shaped.

8. The door leaf skeleton according to claim 3, characterized in that, The bottoms of the two side keels are each provided with an accommodating groove for the smoke-proof strip to pass through.

9. The door leaf frame according to claim 3, characterized in that, It also includes a first reinforcing plate, a second reinforcing plate and a third reinforcing plate, wherein the first reinforcing plate is longitudinally arranged on the side of the side keel away from the internal keel, the second reinforcing plate is connected to the top keel and one of the side keels, and the third reinforcing plates are arranged in pairs on the opposite sides of another side keel.

10. A fire door, characterized in that, It comprises the door leaf frame as described in any one of claims 1 to 9.

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