Fireproof door with sound insulation function
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN SHENGJIE DOOR IND CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional fire doors are inadequate in terms of sound insulation, making it difficult to effectively block external noise and affecting the quietness and privacy of the indoor environment.
The fire door body and baffle are made of steel, combined with sealing strips and sound insulation soft board design, filled with rock wool and glass wool layers to improve sound insulation performance, and noise elimination is achieved through sound wave reflection and absorption.
It effectively seals gaps, improves sound insulation, absorbs noise, and blocks flame attack, providing excellent fire resistance and sound insulation performance.
Smart Images

Figure CN224314858U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire door technology, specifically a fire door with sound insulation function. Background Technology
[0002] In the field of building fire safety, fire doors are widely used in various buildings as important fire-resistant partitions. Traditional fire doors mainly focus on the realization of fire prevention and smoke prevention functions. Their materials are mostly steel, wood or composite materials, and fire resistance is improved by filling them with fire-resistant and heat-insulating materials.
[0003] The shortcomings of traditional fire doors in terms of sound insulation are becoming increasingly apparent. In places with high requirements for sound insulation, such as hospitals, schools, and residences, traditional fire doors are unable to effectively block external noise, affecting the quietness and privacy of the indoor environment. Therefore, it is necessary to design a fire door with sound insulation function to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a fire door with sound insulation function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire door with sound insulation function, comprising a door frame and a fire door body, one end of the fire door body being hinged to the inner end of the door frame, a baffle being installed at the inner end of the door frame, a sealing strip being installed on one side of the baffle, both the fire door body and the baffle being made of steel, and a sound-insulating soft board being installed at the bottom of the fire door body and the sound-insulating soft board being attached to the ground.
[0006] Preferably, a steel plate support frame is provided in the middle of the interior of the fire door body, and the steel plate support frame supports the entire fire door body.
[0007] Preferably, the interior of the fire door body is filled with a layer of rock wool at the end away from the steel plate support frame.
[0008] Preferably, the interior of the fire door body is filled with a glass wool layer at the end away from the rock wool layer.
[0009] Preferably, both sides of the fire door body are made of inorganic materials.
[0010] Preferably, the sound-insulating soft board is made of polyester fiber through hot pressing.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. By rotating the fire door body, the fire door body fits against the baffle installed at one end inside the door frame. The fire door body presses against the sealing strip installed on one side of the baffle. At the same time, the sound-insulating soft board installed at the bottom of the fire door body moves to the bottom of the door frame while adhering to the ground, sealing the gap between the door frame and the fire door body, effectively isolating noise.
[0013] 2. By filling one end of the fire door body with a layer of rock wool and a layer of glass wool, both materials have good fire resistance and can withstand the attack of high-temperature flames. They also have good sound insulation performance. When sound enters these materials, the sound waves will be continuously reflected and refracted in the pores, so that the sound energy is converted into heat energy and consumed, thereby achieving the sound absorption effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the interior of the fire door body of this utility model;
[0016] Figure 3 This utility model Figure 1 Enlarged view of point A;
[0017] Figure 4 This utility model Figure 2 Enlarged diagram of point B.
[0018] In the diagram: 1. Door frame, 2. Fire door body, 3. Baffle, 4. Sealing strip, 5. Sound insulation board, 6. Steel plate support frame, 7. Rock wool layer, 8. Glass wool layer. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0020] Please refer to Figure 1-4 As shown, this utility model provides a fire door with sound insulation function, including a door frame 1 and a fire door body 2. One end of the fire door body 2 is hinged to the inside end of the door frame 1. A baffle 3 is installed at the inside end of the door frame 1. A sealing strip 4 is installed on one side of the baffle 3. Both the fire door body 2 and the baffle 3 are made of steel. A sound insulation soft board 5 is installed at the bottom of the fire door body 2 and the sound insulation soft board 5 is attached to the ground.
[0021] Specifically, by rotating the fire door body 2, the fire door body 2 is made to fit against the baffle 3 installed at one end inside the door frame 1. The fire door body 2 presses against the sealing strip 4 installed on one side of the baffle 3. At the same time, the sound insulation soft board 5 installed at the bottom of the fire door body 2 is attached to the ground and moves to the bottom of the door frame 1 to seal the gap between the door frame 1 and the fire door body 2, effectively isolating noise.
[0022] Among them: a steel plate support frame 6 is set in the middle of the interior of the fire door body 2. The steel plate support frame 6 supports the fire door body 2 as a whole. By supporting the fire door body 2 in the middle of the interior of the fire door body 2, the fire door body 2 is prevented from collapsing.
[0023] Among them: the interior of the fire door body 2 is filled with a rock wool layer 7 at the end away from the steel plate support frame 6. The rock wool layer 7 filled at one end of the fire door body 2 by Tongnuo has excellent fire resistance, belongs to Class A non-combustible material, can withstand the attack of high temperature flames, and has good sound insulation performance, which can effectively block the transmission of sound.
[0024] Among them, the interior of the fire door body 2, away from the rock wool layer 7, is filled with a glass wool layer 8. The glass wool layer 8 filled at one end of the interior of the fire door body 2 has good fire resistance. At the same time, its fiber structure is loose and porous, which can effectively absorb sound waves and has a good sound insulation effect.
[0025] Among them, both sides of the fire door body 2 are made of inorganic materials, which gives it properties such as non-combustibility, heat insulation, and sound insulation.
[0026] Among them, the sound insulation soft board 5 is made of polyester fiber by hot pressing. The sound insulation soft board 5 is made of polyester fiber by hot pressing, and the material is soft and has good sound absorption performance. After special treatment, it can reach the flame retardant level.
[0027] Working Principle: This utility model provides a fire door with sound insulation function. When in use, the fire door body 2 is rotated so that the fire door body 2 fits against the baffle 3 installed at one end inside the door frame 1. The fire door body 2 squeezes the sealing strip 4 installed on one side of the baffle 3. At the same time, the sound insulation soft board 5 installed at the bottom of the fire door body 2 is attached to the ground and moves to the bottom of the door frame 1 to seal the gap between the door frame 1 and the fire door body 2, effectively isolating noise. The cotton layer 7 and glass wool layer 8 set inside the fire door body 2 are both materials with good fire resistance and can withstand the attack of high temperature flames. They also have good sound insulation performance. When sound enters these materials, the sound waves will be continuously reflected and refracted in the pores, so that the sound energy is converted into heat energy and consumed, thereby achieving the sound absorption effect. The contents not described in detail in this description belong to the prior art known to those skilled in the art.
[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A fire door with sound insulation function, comprising a door frame (1) and a fire door body (2), characterized in that: One end of the fire door body (2) is hinged to the inside end of the door frame (1). A baffle (3) is installed inside the door frame (1). A sealing strip (4) is installed on one side of the baffle (3). Both the fire door body (2) and the baffle (3) are made of steel. A sound insulation soft board (5) is installed at the bottom of the fire door body (2) and the sound insulation soft board (5) is attached to the ground.
2. A fire door with sound insulation function according to claim 1, characterized in that: A steel plate support frame (6) is provided in the middle of the interior of the fire door body (2), and the steel plate support frame (6) supports the fire door body (2) as a whole.
3. A fire door with sound insulation function according to claim 2, characterized in that: The interior of the fire door body (2) is filled with a layer of rock wool (7) at the end away from the steel plate support frame (6).
4. A fire door with sound insulation function according to claim 3, characterized in that: The fire door body (2) is filled with a glass wool layer (8) at the end away from the rock wool layer (7).
5. A fire door with sound insulation function according to claim 4, characterized in that: Both sides of the fire door body (2) are made of inorganic materials.
6. A fire door with sound insulation function according to claim 1, characterized in that: The sound insulation soft board (5) is made of polyester fiber by hot pressing.