Fireproof and soundproof door
By using a door frame structure and sound-permeable hole design in the fireproof and soundproof door, the problems of insufficient structural strength and poor sound insulation effect are solved, and the effects of simplified assembly and improved sound insulation performance are achieved.
Patent Information
- Application Number
- CN202520031752.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing fireproof and soundproof doors have insufficient structural strength, are complex to assemble, have poor sound insulation performance, and are limited in applicable scenarios.
The frame structure uses a door frame structure, with crossbeams and longitudinal beams intersecting to form an installation space. The space is filled with fire baffles, fireproof layers, and sound insulation boards, and is fixed by panel clamping. Sound-permeable holes are provided to reduce noise.
It improved the structural strength of the door, simplified the assembly process, enhanced sound insulation, and reduced the weight and cost of the door.
Smart Images

Figure CN223794107U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sound insulation and fireproofing technology, and in particular to a fireproof and soundproof door. Background Technology
[0002] Currently, industrial fan rooms, engine rooms, pump rooms, power distribution rooms, and elevator rooms pose significant noise and fire risks. Fireproof and soundproof doors are generally required at the entrances of these spaces to reduce noise and provide fire and heat insulation, protecting surrounding personnel from noise and fire hazards.
[0003] The existing Chinese utility model patent with announcement number CN217102628U discloses a lightweight heat-insulating fireproof door, which consists of multiple material layers, including fireproof and flame-retardant layers, that are stacked and fixed together by adhesive. These multiple material layers are then sandwiched between two stainless steel substrates and locked with screws and nuts. Finally, two stainless steel panels are fixed on the inner and outer sides to form a complete door structure.
[0004] The problem with existing lightweight insulated fire doors is that the assembly method of the adhesive and threaded rod is too complicated. Although the connection between the screw and nut strengthens the connection between multiple material layers, the structural strength of the door is still relatively weak.
[0005] In addition, the sound insulation function of this lightweight insulated fire door is still poor, which limits its applicable scenarios. Utility Model Content
[0006] The purpose of this utility model is to provide a fireproof and soundproof door that is easy to assemble, has high structural strength, and better sound insulation.
[0007] This utility model provides a fireproof and soundproof door, including a first panel and a second panel, and a door frame structure. The door frame structure includes several horizontal beams and several vertical beams, which extend to the door body plane and are connected to each other to form several installation spaces distributed on the door body plane within the door frame structure. The first panel and the second panel are respectively fixed to both sides of the thickness of the door frame structure. It also includes a material layer assembly placed in the installation space, which includes a fire baffle, a fireproof layer, and a sound insulation board. The first panel, the fire baffle, the fireproof layer, the sound insulation board, and the second panel are tightly attached in sequence, and the second panel is provided with sound-permeable holes.
[0008] As can be seen from the above scheme, this application sets up a door frame structure as the frame of the fireproof and soundproof door, which enhances the structural strength of the door. The crossbeams and longitudinal beams of the door frame structure form multiple installation spaces. Fireproof and soundproofing effects can be achieved simultaneously by stacking fire baffles, fireproof layers, and soundproofing panels within these installation spaces. The fireproof and soundproof door has a first panel and a second panel fixed on the outermost side of the door frame structure. The clamping action of the two panels tightly attaches and fixes the inner fire baffles, fireproof layers, and soundproofing panels, making assembly quick and convenient. The crossbeams and longitudinal beams divide the door structure into multiple small installation areas. The first and second panels can be fixed to multiple crossbeams and longitudinal beams, significantly improving the clamping strength of each installation area. The method of setting up a frame and filling the frame with fireproof and soundproofing materials also greatly reduces the weight of the door. In addition, the second panel is also provided with sound-permeable holes. When one side of the second panel faces the noise source, the noise can enter the door through the sound-permeable holes and be weakened or eliminated by multiple reflections from the soundproofing panels and the door.
[0009] The preferred embodiment is that both the crossbeams and longitudinal beams are provided with grooves, the entrances of which are connected to the installation space, and the fireproof layer is inserted into the grooves.
[0010] As can be seen, the fireproof layer is directly inserted into the grooves of the crossbeams and longitudinal beams, making the assembly more stable.
[0011] A further embodiment is that the door frame structure also includes a first inclined beam and a second inclined beam connected to the longitudinal beam and the transverse beam; the first inclined beam extends between the first panel and the fireproof layer, and the second inclined beam extends between the second panel and the fireproof layer.
[0012] It is evident that the first and second inclined beams can reinforce the door, significantly improving its structural strength.
[0013] A further proposed solution is to divide the installation space into a first installation area by a fireproof layer and a first inclined beam, and to divide the installation space into a second installation area by a fireproof layer and a second inclined beam. A fire baffle is installed in the first installation area, and a sound insulation board is installed in the second installation area.
[0014] As can be seen, the installation space formed by the crossbeam and the diagonal beam is divided into two spaces along the plane of the door by the fireproof layer. The first diagonal beam and the second diagonal beam are set on both sides to strengthen the door frame structure. Then, the space on both sides is divided into multiple first installation areas and multiple second installation areas by the first diagonal beam and the second diagonal beam respectively. During the assembly process, it is only necessary to set the shape of the fire baffle or sound insulation board according to the shape of the first installation area or the second installation area. Then, the fire baffle is placed on the first installation area and the sound insulation board is placed on the second installation area. Finally, the first panel and the second panel are fixed on both sides of the door to complete the assembly.
[0015] A further option is to use fiber-reinforced silicate board as the fire shield, with a thickness ranging from 8mm to 12mm.
[0016] It is evident that fiber-reinforced silicate boards have excellent thermal insulation properties and high material strength, effectively preventing the spread of fire. Fiber-reinforced silicate boards within this thickness range can be conveniently arranged between the first panel and the fireproof layer.
[0017] A further option is to use a fireproof rock wool layer with a thickness ranging from 70mm to 80mm.
[0018] It is evident that fireproof rock wool can remain stable at high temperatures and has tiny pores and numerous air pockets, which can block the spread of heat. The fireproof rock wool layer is filled into the grooves of the crossbeams and longitudinal beams, and together with fiber-reinforced silicate boards, it achieves better fireproof performance. Furthermore, the materials of fireproof rock wool and fiber-reinforced silicate boards are inexpensive, reducing assembly costs.
[0019] A further option is to use perforated gypsum board as the sound insulation board, with a thickness ranging from 8mm to 12mm.
[0020] It is evident that perforated gypsum board is inexpensive and has excellent sound absorption. When combined with a second panel with sound-permeable holes, it can reduce or eliminate noise. Perforated gypsum board within this thickness range can be easily arranged between the second panel and the fireproof layer.
[0021] A further option is that the first panel is a stainless steel plate, and the second panel is a perforated stainless steel plate, with the thickness of both the first and second panels ranging from 1.5mm to 2.5mm.
[0022] It is evident that stainless steel has high structural strength, and the fire-resistant plate, fireproof layer, and sound insulation plate fixed on both sides of the door frame structure can act as clamps. Attached Figure Description
[0023] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of an embodiment of the present utility model.
[0025] Figure 2 This is a structural diagram of the door frame structure according to an embodiment of the present utility model.
[0026] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model.
[0027] Figure 4 This is a cross-sectional schematic diagram of another embodiment of the present invention. Detailed Implementation
[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] Reference Figures 1 to 3 As shown, where Figure 1 This is a front view of a fireproof and soundproof door. To better illustrate the multiple layers of materials used in the door, Figure 1 Some of the material layers are partially removed to allow the material layers behind them to be displayed.
[0030] This embodiment provides a fireproof and soundproof door, including a door frame structure 1 and a material layer assembly 2. The material layer assembly 2 includes a fire baffle 21, a fireproof layer 22, and a sound insulation panel 23. The door frame structure 1 includes two parallel longitudinal beams 12 and five transverse beams 11 disposed between the two longitudinal beams 12 and fixedly connected perpendicularly to the two longitudinal beams 12. The transverse beams 11 and longitudinal beams 12 form four installation spaces 5 distributed on the plane of the door body within the door frame structure 1. It should be noted that both the crossbeam 11 and the longitudinal beam 12 are "C" shaped beams. A groove 15 is formed on one side of the length direction of the "C" shaped beam. The entrances of the grooves 15 of the crossbeam 11 and the longitudinal beam 12 face the installation space 5. The fireproof layer 22 is inserted into the groove 15. Fire baffles 21 and sound insulation boards 23 are provided on both sides of the fireproof layer 22. The first panel 3 and the second panel 4 are fixed to both sides of the thickness of the door frame structure 1. In this embodiment, the first panel 3 and the second panel 4 are fastened to the crossbeam 11 and the longitudinal beam 12 by a number of screws screwed from the outside of the door frame structure 1 to the inside, and generate a clamping force on the material layer group 2, so that the fire baffle 21 is tightly attached to the first panel 3 and the fireproof layer 22, and the sound insulation board 23 is tightly attached to the second panel 4 and the fireproof layer 22.
[0031] like Figure 1 As shown, the surface of the second panel 4 is provided with an array of multiple sound-permeable holes 41. During the installation of this fireproof and soundproof door, the second panel 4 is set to face the inside of the noise source such as the machine room or motor room, while the first panel 3 faces the outside of the room, so that the noise can first pass through the sound-permeable holes 41 of the second panel 4 into the door body. The noise intensity transmitted to the outside of the door is reduced by the reflection of the door body and the isolation and elimination of the sound insulation plate 23.
[0032] The fireproof and soundproof door in this embodiment also includes a first inclined beam 13 and a second inclined beam 14, such as Figure 2As shown, the first inclined beam 13 and the second inclined beam 14 each include two beams. The first inclined beam 13 is located on the side of the fireproof and soundproof door closer to the first panel 3, and the second inclined beam 14 is located on the side of the fireproof and soundproof door closer to the second panel 4. The two first inclined beams 13 or the two second inclined beams 14 are connected to the horizontal beam 11 and the vertical beam 12 along the door body, which greatly improves the structural strength of the door body.
[0033] like Figure 3 As shown, the space between the fireproof layer 22 and the first panel 3 is used to place the fire baffle 21. The first inclined beam 13 extends between the first panel 3 and the fireproof layer 22. The first inclined beam 13 and the fireproof layer 22 divide the installation space 5 into multiple first installation areas 51. The fire baffle 21 is designed with different shapes depending on the shape of the first installation area 51 on the door plane. During assembly, the fire baffle 21 is placed in the first installation area 51 corresponding to its shape. Similarly, the space between the fireproof layer 22 and the second panel 4 is used to place the sound insulation panel 23. The second inclined beam 14 extends between the second panel 4 and the fireproof layer 22. The second inclined beam 14 and the fireproof layer 22 divide the installation space 5 into multiple second installation areas 52. The sound insulation panel 23 is designed with different shapes depending on the shape of the second installation area 52 on the door plane. During assembly, the sound insulation panel 23 is placed in the second installation area 52 corresponding to its shape.
[0034] In this embodiment, the fire baffle 21 is a 12mm thick fiber-reinforced silicate board, the fireproof layer 22 inserted into the groove 15 of the crossbeam 11 and the longitudinal beam 12 is a 79mm thick fireproof rock wool layer, and the sound insulation board 23 is a 9mm thick sound-absorbing perforated gypsum board with multiple sound-absorbing holes 231 to reduce noise intensity. Furthermore, in this embodiment, both the first panel 3 and the second panel 4 are made of stainless steel and are both 2mm thick, with the second panel 4 being a perforated stainless steel plate.
[0035] In other embodiments, to ensure the structural strength of the door, three or more longitudinal beams can be arranged in parallel at intervals, and multiple crossbeams can be connected between the three longitudinal beams.
[0036] In other embodiments, such as Figure 4As shown, the "C"-shaped beam has a bent portion 616 along its length that can be inserted into the fireproof layer 622, thus securing the fireproof layer 622 to the crossbeam 611 or longitudinal beam. During assembly, the crossbeam 611 and longitudinal beam can be sequentially placed along the edges of multiple fireproof layer 622 materials, allowing the fireproof layer 622 to be inserted into the grooves 615 of the crossbeam 611 and longitudinal beam, and the bent portion 616 of the crossbeam 611 or longitudinal beam to be inserted into the fireproof layer 622, forming a stable whole. Then, the first inclined beam 6... 13 and the second inclined beam 614 are fixed between the horizontal beam 611 and the longitudinal beam on both sides of the fireproof layer 622. Finally, multiple fire baffles 621 are correspondingly set in multiple first installation areas 651, and the first panel 63 is covered and fixed to the outside of the door frame structure on the side of the fire baffle 621. At the same time, multiple sound insulation panels 623 are correspondingly set in multiple second installation areas 652, and the second panel 64 is covered and fixed to the outside of the door frame structure on the side of the sound insulation panel 623.
[0037] The above embodiments illustrate only one implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A fireproof and soundproof door, comprising a first panel and a second panel, characterized in that, It also includes a door frame structure, which includes several horizontal beams and several vertical beams. The horizontal beams and the vertical beams extend into the plane of the door body. The horizontal beams and the vertical beams are connected to each other so that several installation spaces distributed in the plane of the door body are formed within the door frame structure. The first panel and the second panel are respectively fixed to both sides of the thickness of the door frame structure; It also includes a material layer assembly placed in the installation space, the material layer assembly including a fire baffle, a fireproof layer and a sound insulation board, the first panel, the fire baffle, the fireproof layer, the sound insulation board and the second panel are tightly attached in sequence, and the second panel is provided with sound-permeable holes.
2. The fireproof and soundproof door according to claim 1, characterized in that, Both the crossbeam and the longitudinal beam are provided with grooves, the inlet of the grooves is connected to the installation space, and the fireproof layer is inserted into the grooves.
3. The fireproof and soundproof door according to claim 2, characterized in that, The door frame structure also includes a first inclined beam and a second inclined beam connected to the longitudinal beam and the transverse beam; The first inclined beam extends between the first panel and the fireproof layer, and the second inclined beam extends between the second panel and the fireproof layer.
4. The fireproof and soundproof door according to claim 3, characterized in that, The installation space is divided into a first installation area by the fireproof layer and the first inclined beam, and a second installation area by the fireproof layer and the second inclined beam. The fire baffle is disposed in the first installation area, and the sound insulation board is disposed in the second installation area.
5. The fireproof and soundproof door according to any one of claims 1 to 4, characterized in that, The fire baffle is a fiber-reinforced silicate board with a thickness ranging from 8 mm to 12 mm.
6. The fireproof and soundproof door according to any one of claims 1 to 4, characterized in that, The fireproof layer is a fireproof rock wool layer, and the thickness of the fireproof rock wool layer ranges from 70mm to 80mm.
7. The fireproof and soundproof door according to any one of claims 1 to 4, characterized in that, The sound insulation board is a perforated gypsum board, and the thickness of the perforated gypsum board ranges from 8mm to 12mm.
8. The fireproof and soundproof door according to any one of claims 1 to 4, characterized in that, The first panel is a stainless steel plate, and the second panel is a perforated stainless steel plate. The thickness of both the first panel and the second panel ranges from 1.5mm to 2.5mm.
Citation Information
Patent Citations
Light heat insulation fireproof door
CN217102628U