Door leaf structure of a high sound insulation fire door

Abstract

The utility model relates to a high sound insulation fireproof door leaf structure, including door frame and door leaf, and the door leaf includes door leaf front door board and door leaf rear door board, and the door leaf front door board includes the left and right sides door board and the left and right sides door board's first front side wall and second front side wall of integral bending forming to the back, and the door leaf rear door board includes the left and right sides door board and the left and right sides door board's first rear side wall and second rear side wall of integral bending forming to the front, and first front side wall and first rear side wall and second front side wall and second rear side wall respectively through riveting fixed, and first front side wall and second front side wall are respectively provided with first clamping slot and second clamping slot, and first clamping slot and second clamping slot are respectively equipped with the sound absorption sealing strip of one side door frame sealed cooperation. The utility model door leaf's left and right sides and the upper side are provided with multiple sound absorption sealing strips respectively, and the gap between door leaf and door frame is effectively blocked when the door leaf is closed, and the fireproof performance and sound insulation performance of door leaf are improved.

Description

Technical Field

[0001] This utility model relates to the field of soundproof door leaf technology, and in particular to a high soundproof fireproof door leaf structure. Background Technology

[0002] Soundproof doors are mainly used in quiet rooms where noise is not a concern and in rooms where noise from inside the room is not allowed to spread outwards and disturb the surrounding environment. Soundproof doors are usually composed of two or more layers of door panels, with sound insulation materials such as sound insulation cotton or sound insulation membrane filling the space between them. These sound insulation materials can absorb, reflect, or isolate noise, thereby reducing the transmission of noise between indoors and outdoors. The quality of a soundproof door is determined by its airtightness and sound insulation performance.

[0003] As people pursue a higher quality of life, their requirements for living environments are increasing. While traditional household doors can provide some sound insulation, they are insufficient in terms of soundproofing. For example, Chinese utility model patent CN223048714U discloses a soundproof door, which includes a door frame and a door leaf. The inner side of the door frame has an overlapping frame, and the door leaf abuts against the outer side of the overlapping frame. The overlapping frame is equipped with a first soundproof sealing component, and the perimeter of the door leaf is equipped with an edge seal. A stepped groove is formed on the outer side of the door frame corresponding to the edge seal, and the edge seal is inserted into the stepped groove. The edge seal is equipped with a second soundproof sealing component.

[0004] The installation of a first and a second sound-insulating strip between the door leaf and the door frame has the following drawbacks: On the one hand, when the first and second sound-insulating strips are not installed, the door leaf and the door frame fit together perfectly without any gaps. However, when the first and second sound-insulating strips are installed, the gap between the door leaf and the door frame is increased. On the other hand, while the sound-insulating strips between the door leaf and the door frame block sound transmission to a certain extent, they do not reduce or absorb sound along the transmission path, and sound will still transmit through the gaps. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a high sound insulation fireproof door leaf structure, which sets multiple sound-absorbing sealing strips between the door leaf and the door frame to effectively block sound transmission and improve the sound insulation performance of the door leaf.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A high sound insulation fireproof door leaf structure includes a door frame and a door leaf. The door leaf is disposed within the door frame and hinged to one side of the door frame via a sound-insulating hinge. The door leaf includes a front door panel and a rear door panel. The front door panel includes a front side panel and a first front side wall and a second front side wall formed by bending the left and right sides of the front side panel backwards. The rear door panel includes a rear side panel and a first rear side wall and a second rear side wall formed by bending the left and right sides of the rear side panel forwards. The first front side wall and the first rear side wall, and the second front side wall and the second rear side wall are respectively fixed by riveting. The first front side wall and the second front side wall are respectively symmetrically provided with a first slot and a second slot. The first slot and the second slot are respectively provided with a sound-absorbing sealing strip that seals with the door frame on the same side.

[0008] Furthermore, the upper end of the front door panel is integrally bent backward to form a first upper side wall, and the upper end of the rear door panel is integrally bent forward to form a second upper side wall. The first upper side wall and the second upper side wall are fixed by riveting. The first slot and the second slot are provided on the first upper side wall, and the sound-absorbing sealing strip is provided on the first slot and the second slot and seals with the upper side of the door frame.

[0009] Furthermore, the first and second slots are located on the side near the door frame, and the first and second slots open on the side near the rear door panel of the door leaf.

[0010] Furthermore, the sound-absorbing sealing strip includes an integrally formed first sealing strip and a second sealing strip, wherein the first sealing strip is disposed on the side wall of the first and second slots parallel to the front door panel and / or the rear door panel.

[0011] Furthermore, an airtight soundproof lock is provided on the side of the door leaf away from the soundproof hinge, and the airtight soundproof lock is provided with a locking rod connecting its upper and lower ends.

[0012] Furthermore, the bottom of the door leaf is provided with multiple downward-facing mounting slots, and each mounting slot is provided with a settlement sound insulation sealing strip. When the door leaf is closed, the lower end of the locking rod contacts and compresses the settlement sound insulation sealing strip.

[0013] Furthermore, the interior of the door leaf, between the front door panel and the rear door panel, is filled with multiple layers of composite fireproof and soundproof material.

[0014] Furthermore, the front door panel and the rear door panel of the door leaf have different thicknesses, with the front door panel being thicker than the rear door panel.

[0015] Furthermore, the left and right sides and the top side of the door frame are respectively provided with sealing elements that are in sealing cooperation with the sound-absorbing sealing strips on the corresponding sides of the door leaf.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] First, the door leaf of this utility model is provided with multiple sound-absorbing sealing strips on the left and right sides and the top side. When the door leaf is closed and embedded in the door frame, the sealing strips provided on the door frame come into contact with and are compressed by the sound-absorbing sealing strips on the corresponding side of the door leaf, effectively blocking the transmission of sound, ensuring the airtightness of the door leaf, and improving the sound insulation performance between the door leaf and the door frame.

[0018] Secondly, the door leaf is formed by bending the front and rear door panels. The front and rear door panels are connected by overlapping fasteners and rivet screws, which eliminates the need for welding and ensures quick installation and removal of the door leaf.

[0019] Finally, the door leaf is made of steel plate, and multiple layers of composite fireproof and soundproof material are used inside the door leaf, which has the properties of sound insulation, fireproof and heat insulation. Attached Figure Description

[0020] Figure 1 This is a cross-sectional schematic diagram of the door leaf structure of a high sound insulation fireproof door according to this utility model.

[0021] Figure 2 This is a cross-sectional view of the door leaf of this utility model.

[0022] Figure 3 This is a partial cross-sectional view of the door leaf of this utility model.

[0023] Figure 4 This is a vertical sectional view of the door leaf of this utility model.

[0024] Figure 5 This is a partial vertical cross-sectional view of the door leaf of this utility model. Figure 1 .

[0025] Figure 6 This is a partial vertical cross-sectional view of the door leaf of this utility model. Figure 2 .

[0026] Figure 7 This is a partial vertical cross-sectional view of the door leaf structure of a high sound insulation fireproof door according to this utility model.

[0027] Figure 8 This is a front view of the door leaf structure of a high sound insulation fireproof door according to this utility model. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0029] like Figures 1 to 8As shown, this embodiment provides a high sound insulation fireproof door leaf structure, including a door frame 1 and a door leaf 2. The door leaf 2 is disposed within the door frame 1 and hinged to one side of the door frame 1 via a sound-insulating hinge 3. The door leaf 2 includes a front door panel 21 and a rear door panel 22. The front door panel 21 includes a front side panel 211 and a first front side wall 212 and a second front side wall 213 integrally bent backward on both sides of the front side panel 211. The rear door panel 22 includes a rear side panel 221 and a rear... The left and right sides of the side door panel 221 are integrally bent forward to form the first rear side wall 222 and the second rear side wall 223. The first front side wall 212 is fixed to the first rear side wall 222 and the second front side wall 213 is fixed to the second rear side wall 223 by riveting. The first front side wall 212 and the second front side wall 213 are respectively symmetrically provided with the first slot 23 and the second slot 24. The first slot 23 and the second slot 24 are respectively provided with a sound-absorbing sealing strip 5 that seals with the door frame 1 on the same side.

[0030] In this embodiment, the upper end of the front door panel 211 is integrally bent backward to form a first upper sidewall 214, and the upper end of the rear door panel 221 is integrally bent forward to form a second upper sidewall 224. The first upper sidewall 214 and the second upper sidewall 224 are fixed by riveting. The first slot 23 and the second slot 24 are provided on the first upper sidewall 214. The sound-absorbing sealing strip 5 is provided on the first slot 23 and the second slot 24 and seals with the upper side of the door frame 1. The front door panel 21 and the rear door panel 22 are connected by overlapping and fastening, and are fixed by rivet screws in a welding-free manner, which allows for quick installation and disassembly, is convenient and fast, and is also environmentally friendly.

[0031] In this embodiment, the first slot 23 and the second slot 24 are located on the side near the door frame 1. The first slot 23 and the second slot 24 are open on the side near the rear door panel 22 of the door leaf. The left and right sides and the top side of the door frame 1 near the door leaf 2 are respectively provided with stepped portions that can be embedded in the first slot 23 and the second slot 24, so that there is a gap between the door leaf 2 and the door frame 1 for the provided sound-absorbing sealing strip 5 and sealing element 4, ensuring that the door leaf 2 and the door frame 1 are tightly sealed, effectively blocking the transmission of sound and improving the sound insulation performance between the door leaf 2 and the door frame 1.

[0032] The soundproof hinge 3 adopts an adjustable heavy-duty flat-joint installation method, which avoids setting installation holes between the door frame 1 and the door leaf 2, preventing sound waves from passing through the installation holes. At the same time, it is convenient to adjust the gap between the door frame 1 and the door leaf 2 in the vertical direction and in the left and right direction, so as to keep the gap between the door frame 1 and the door leaf 2 within a reasonable range.

[0033] In this embodiment, the sound-absorbing sealing strip 5 includes an integrally formed first sealing strip 51 and a second sealing strip 52. The first sealing strip 51 is disposed on the side wall parallel to the first slot 23 and the second slot 24 and the front door panel 211 and / or the rear door panel 221.

[0034] In this embodiment, an airtight soundproof lock 6 is provided on the side of the door leaf 2 away from the soundproof hinge 3, and a locking rod 61 connecting its upper and lower ends is provided on the airtight soundproof lock 6.

[0035] In this embodiment, the bottom of the door leaf 2 is provided with multiple downward-facing mounting grooves 25, and each mounting groove 25 is provided with a settling sound insulation sealing strip 26. When the door leaf 2 is closed, the lower end of the locking rod 61 contacts and compresses the settling sound insulation sealing strip 26, and the upper end of the locking rod 61 contacts and compresses the sound-absorbing sealing strip 5 at the upper end of the door leaf 2, so as to ensure the sealing between the door leaf 2 and the door frame 1 and improve the sound insulation performance of the door leaf 2.

[0036] In this embodiment, the door leaf 2 is filled with a multi-layer composite fireproof and soundproof material 27 between the front door panel 21 and the rear door panel 22. This material is made of ceramic fiber board and glass fiber cotton, which effectively absorbs and converts sound waves while ensuring that the door leaf 2 has excellent fireproof and heat insulation performance.

[0037] In this embodiment, the front door panel 21 and the rear door panel 22 of the door leaf have different thicknesses, with the front door panel 21 having a greater thickness than the rear door panel 22, in order to prevent the generation of sound wave resonance.

[0038] In this embodiment, the left and right sides and the top of the door frame 1 are respectively provided with sealing elements 4 that are in sealing cooperation with the sound-absorbing sealing strips 5 on the corresponding sides of the door leaf 2. The sound-absorbing sealing strips 5 and the sealing elements 4 are in contact and abut against each other, thereby improving the sound insulation performance between the door leaf 2 and the door frame 1.

[0039] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. A high sound insulation fireproof door leaf structure, comprising a door frame and a door leaf, wherein the door leaf is disposed within the door frame and hinged to one side of the door frame via a sound-insulating hinge, characterized in that: The door panel includes a front door panel and a rear door panel. The front door panel includes a front side panel and a first front side wall and a second front side wall formed by bending the left and right sides of the front side panel backwards. The rear door panel includes a rear side panel and a first rear side wall and a second rear side wall formed by bending the left and right sides of the rear side panel forwards. The first front side wall and the first rear side wall and the second front side wall and the second rear side wall are respectively fixed by riveting. The first front side wall and the second front side wall are respectively symmetrically provided with a first slot and a second slot. The first slot and the second slot are respectively provided with a sound-absorbing sealing strip that seals with the door frame on the same side.

2. The high sound insulation fireproof door leaf structure according to claim 1, characterized in that: The upper end of the front door panel is bent backward to form a first upper side wall, and the upper end of the rear door panel is bent forward to form a second upper side wall. The first upper side wall and the second upper side wall are fixed by riveting. The first slot and the second slot are provided on the first upper side wall. The sound-absorbing sealing strip is provided on the first slot and the second slot and is sealed to the upper side of the door frame.

3. The high sound insulation fireproof door leaf structure according to claim 2, characterized in that: The first slot and the second slot are located on the side near the door frame, and the first slot and the second slot have openings on the side near the rear door panel of the door leaf.

4. The high sound insulation fireproof door leaf structure according to claim 3, characterized in that: The sound-absorbing sealing strip includes an integrally formed first sealing strip and a second sealing strip. The first sealing strip is disposed on the side wall of the first and second slots that are parallel to the front door panel and / or the rear door panel.

5. The high sound insulation fireproof door leaf structure according to claim 1, characterized in that: An airtight soundproof lock is provided on the side of the door leaf away from the soundproof hinge, and a locking rod is provided on the airtight soundproof lock connecting its upper and lower ends.

6. The high sound insulation fireproof door leaf structure according to claim 5, characterized in that: The bottom of the door leaf is provided with multiple downward-facing mounting slots, and each mounting slot is provided with a settlement sound insulation sealing strip. When the door leaf is closed, the lower end of the locking rod contacts and compresses the settlement sound insulation sealing strip.

7. The high sound insulation fireproof door leaf structure according to claim 4, characterized in that: The interior of the door leaf, between the front and rear door panels, is filled with multiple layers of composite fireproof and soundproof material.

8. The high sound insulation fireproof door leaf structure according to claim 7, characterized in that: The front and rear door panels of the door have different thicknesses, with the front door panel being thicker than the rear door panel.

9. The door leaf structure of a high sound insulation fireproof door according to claim 4, characterized in that: The left and right sides and the top of the door frame are respectively provided with sealing elements that are in sealing cooperation with the sound-absorbing sealing strips on the corresponding sides of the door leaf.

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