Heat preservation and sound insulation fireproof door

Abstract

Most of common doors are steel doors which only have the fireproof function and do not have the energy-saving heat preservation and sound insulation functions. The steel-wood composite door comprises a steel-wood composite door leaf (2) and a steel-wood composite door frame (3), the steel-wood composite door leaf and the steel-wood composite door frame are connected through hinges (4), a steel door core in the middle of the steel-wood composite door leaf comprises an inner plate (9) and an outer plate (10), and a calcium silicate plate (11) and a phenolic aldehyde foaming plate (12) are filled between the inner plate and the outer plate. The joint of the inner plate and the outer plate is separated by a heat insulation material plate (13); an inner covering edge (16) is embedded on the periphery of the inner plate, an outer covering edge (17) is embedded on the periphery of the outer plate, a door leaf fireproof expansion sealing piece (8) is pasted between the inner covering edge and the outer covering edge, and ethylene propylene diene monomer sealing pieces (6) are pasted on two ladder openings of the outer covering edge respectively. The door is used for heat preservation, sound insulation and fire prevention.

Description

Technical Field

[0001] The utility model relates to a heat-insulating, sound-insulating and fire-proof door. Background Art

[0002] At present, the doors for building users in the market are manufactured according to the national standard GB12955-2008 "Fire Doors" to meet the requirements of building fire protection regulations. In order to ensure the structural rigidity and strength of the doors, most of them are steel doors that only have fire protection functions but do not have energy-saving and heat insulation and sound insulation functions. At present, the country advocates green and low-carbon development and launches passive ultra-low energy consumption buildings. Therefore, the matching doors and windows have higher requirements for energy-saving performance, heat insulation and sound insulation in addition to ensuring the fire resistance required by the building fire protection regulations. Ordinary fire doors cannot meet these requirements. Utility Model Content

[0003] The utility model aims to solve the above-mentioned problems and provide a heat-insulating, sound-insulating and fire-proof door.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A heat-insulating, sound-insulating and fire-proof door, comprising: a steel-wood composite door leaf and a steel-wood composite door frame, wherein the steel-wood composite door leaf and the steel-wood composite door frame are connected via hinges, a steel door core in the middle of the steel-wood composite door leaf comprises an inner plate and an outer plate, hollow cuts are cut around the inner plate, and a calcium silicate board and a phenolic foam board are filled between the inner plate and the outer plate;

[0006] The inner plate and the outer plate are separated at their joints by a heat-insulating material plate;

[0007] The inner plate is inlaid with inner edging all around, the outer plate is inlaid with outer edging all around, a door leaf fireproof expansion seal is pasted between the inner edging and the outer edging, and EPDM seals are pasted at two ladder openings of the outer edging.

[0008] The thickness of the thermal insulation, sound insulation and fireproof door is 2-3 mm.

[0009] The heat-insulating, sound-insulating and fire-proof door and the steel-wood composite door frame include a steel door frame, and flame-retardant medium-density fiberboard and a fireproof board are mounted inside the steel door frame.

[0010] The heat-insulating, sound-insulating and fire-proof door has a door frame edging inlaid outside the steel door frame, and a door frame fire-proof expansion seal is inlaid in the inner groove of the steel door frame. Beneficial Effects

[0011] 1. The steel door core inner plate of the utility model steel-wood composite door leaf is hollowed out around, and the inner plate and the outer plate are separated by heat insulation material to achieve thermal insulation. At the same time, the composite door core material with high fire resistance and low thermal conductivity is filled between the inner and outer plates, thereby greatly reducing the heat transfer coefficient.

[0012] 2. The main steel door frame of the utility model steel-wood composite door frame ensures its structural rigidity and strength, and the flame-retardant density board and fireproof board are pasted inside to improve the fire resistance and reduce the heat transfer coefficient;

[0013] 3. The two door leaf fireproof expansion seals and two EPDM seals without breaks on all sides of the utility model not only ensure the fireproof function of the door but also greatly improve the sealing performance of the door, thereby enhancing the thermal insulation and sound insulation effects of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is the front view of thermal insulation, sound insulation and fireproof door:

[0015] Attached Figure 2 This is the cross-section diagram of the thermal insulation, sound insulation and fireproof door:

[0016] Attached Figure 3 It is the steel door core in the steel-wood composite door leaf of the thermal insulation, sound insulation and fireproof door.

[0017] Attached Figure 4 Yes Figure 3 A-direction view;

[0018] Attached Figure 5 This is an enlarged cross-section of the edge of the thermal insulation, sound insulation and fireproof door lock:

[0019] Attached Figure 6 This is an enlarged cross-section of the hinge edge of the thermal insulation, sound insulation and fireproof door;

[0020] Attached Figure 7 This is an enlarged cross-section of the steel-wood composite door frame of the thermal insulation, sound insulation and fireproof door;

[0021] In the figure: 1. door lock; 2. steel-wood composite door leaf; 3. steel-wood composite door frame; 4. hinge; 5. door frame fire-proof expansion seal; 6, 7. EPDM seal; 8. door leaf fire-proof expansion seal; 9. inner panel; 10. outer panel; 11. calcium silicate board; 12. phenolic foam board; 13. insulation material board; 14. fireproof board; 15. decorative flame-retardant wood board; 16. inner edging; 17. outer edging; 18. steel door frame; 19. flame-retardant medium density fiberboard; 20. fireproof board; 21. door frame edging. DETAILED DESCRIPTION

[0022] Reference Figure 1-Figure 3, a heat-insulating, sound-insulating and fire-proof door, comprising: a steel-wood composite door leaf 2 and a steel-wood composite door frame 3, wherein the steel-wood composite door leaf is connected to the steel-wood composite door frame by a hinge 4, and a door lock 1 is installed on the steel-wood composite door leaf. The structure of the door lock is a prior art and is not described in detail here. The steel door core in the middle of the steel-wood composite door leaf comprises an inner plate 9 and an outer plate 10, wherein the inner plate 9 and the outer plate 10 are both made of galvanized thin steel plates, and hollow knives are cut around the inner plate 9, and the length of the hollow knives cut accounts for more than 80% of the length of the inner plate around the inner plate. A calcium silicate board 11 with high fire resistance and a phenolic foam board 12 with low thermal conductivity are filled between the inner plate 9 and the outer plate 10, and the inner plate and the outer plate are separated by a 2-3 mm thick insulation material board 13 at the joint to achieve most of the broken bridge, thereby effectively reducing the heat conduction from the inner plate to the outside;

[0023] Reference Figure 4-Figure 5 The inner plate is inlaid with inner edging 16 around the periphery, and the outer plate is inlaid with outer edging 17 around the periphery. Both the inner edging and the outer edging are decorative edgings made of copper-plated stainless steel sheets. A door leaf fireproof expansion seal 8 is pasted between the inner edging and the outer edging, and EPDM seals 6 and 7 are respectively pasted at the two ladder openings of the outer edging.

[0024] A fireproof board 14 is attached to the inner plate 9 of the steel door core, a hinge 4 is installed on the outer surface of the outer plate 10 with screws, and then a decorative flame retardant wood board (or medium density board) 15 is attached, that is, the inner and outer edges are inlaid around the composite door leaf;

[0025] Reference Figure 6 The steel-wood composite door frame comprises a steel door frame 18, in which a flame-retardant medium density board 19 and a fireproof board 20 are mounted.

[0026] The steel door frame is inlaid with a door frame edging 21, and the inner groove of the steel door frame is inlaid with a door frame fireproof expansion seal 5, so that the door leaf and the seal on the door frame are closely fitted when the door is closed during assembly.

[0027] According to this structure, while ensuring the high overall rigidity and strength of the door, the fire resistance performance can stably reach A1.00 (Class B) required by GB12955-2008; the energy-saving performance can reach Class 10 [heat transfer coefficient K<1.1W / (㎡.K)] of the door and window insulation performance classification in GB / T31433-2015 "General Technical Conditions for Curtain Wall Doors and Windows of Buildings", and the airborne sound insulation is above 35db. It can be used for the entrance door of passive ultra-low energy consumption buildings and green buildings.

Claims

1. A thermal insulation, sound insulation and fireproof door, comprising: A steel-wood composite door leaf and a steel-wood composite door frame, wherein the steel-wood composite door leaf and the steel-wood composite door frame are connected by hinges, and the steel-wood composite door leaf is characterized in that: the steel door core in the middle of the steel-wood composite door leaf comprises an inner plate and an outer plate, the inner plate is cut with hollows around it, and a calcium silicate board and a phenolic foam board are filled between the inner plate and the outer plate; The inner plate and the outer plate are separated at their joints by a heat-insulating material plate; The inner plate is inlaid with inner edging all around, the outer plate is inlaid with outer edging all around, a door leaf fireproof expansion seal is pasted between the inner edging and the outer edging, and EPDM seals are pasted at two ladder openings of the outer edging.

2. The thermal insulation, sound insulation and fireproof door according to claim 1 is characterized in that: The thickness of the heat insulation material board is 2-3 mm.

3. The thermal insulation, sound insulation and fireproof door according to claim 2 is characterized in that: The steel-wood composite door frame comprises a steel door frame, and flame-retardant medium-density fiberboard and fireproof board are mounted inside the steel door frame.

4. The thermal insulation, sound insulation and fireproof door according to claim 3 is characterized by: The steel door frame is inlaid with a door frame edging outside, and the inner groove of the steel door frame is inlaid with a door frame fireproof expansion sealing member.

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