Household wardrobe sound insulation structure for assembly type decoration
By employing a sound-insulating back panel and a sealed cabinet door structure in the wardrobe, a double-layer sound insulation layer is formed, solving the problem of insufficient sound insulation in wardrobes. This achieves improved sound insulation performance while saving space and materials, and simplifies the construction process, making it suitable for home wardrobes in prefabricated decoration.
Patent Information
- Application Number
- CN202520385272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-05
AI Technical Summary
The sound insulation of wardrobes in existing residential buildings is insufficient, leading to noise interference. Furthermore, traditional construction methods consume materials, occupy space, and have low construction efficiency, making it difficult to achieve a balance between high sound insulation performance and space utilization in economical housing units.
The back panel sound insulation structure, which includes a combination of back panel, light steel keel, damping sound insulation felt and centrifugal glass wool, combined with the sealing structure of the cabinet door and vibration reduction measures, forms a double sound insulation layer, which enhances the sound insulation performance of the wardrobe, and simplifies construction through modular design.
It improves the sound insulation performance of wardrobes, saves space and materials, simplifies the construction process, reduces construction waste, and enhances the quality of the indoor environment, meeting the development needs of prefabricated decoration.
Smart Images

Figure CN223830650U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of prefabricated decoration furniture design and installation, and relates to a sound insulation structure for a household wardrobe used in prefabricated decoration. Background Technology
[0002] The domestic home building and decoration industry has entered a period of industrialization, with design and construction models aiming to improve implementation efficiency, product quality, and environmental benefits. Industrialized building is a crucial technological means in this process. Partition walls are important internal building envelopes, requiring high strength, sound insulation, thermal insulation, and environmental friendliness. Residential designs often include large wardrobes covering entire walls. To maximize usable floor space, the thickness of the wall behind the wardrobe is often reduced. In budget-friendly apartments, homeowners sometimes even use the wardrobe as a partition between two adjacent rooms. However, the wardrobe itself lacks sufficient sound insulation, and the back panel does not provide adequate sound insulation, creating a weak point in soundproofing. In budget-friendly apartments, the lack of a proper balance between maximizing usable floor space and ensuring basic wall sound insulation is a significant factor contributing to poor sound insulation performance and noise pollution from partition walls.
[0003] In existing residential building decoration designs, wardrobes covering an entire wall often have a 200mm thick masonry wall behind them, while the wardrobe itself is 600mm thick, resulting in an overall thickness of 800mm. Gaps exist between the wardrobe doors and the back panel, which do not provide sound insulation; the room's sound insulation still relies on the sound insulation performance of the wall behind the wardrobe. In budget-friendly apartments, homeowners often aim to increase usable floor space, reduce material usage, and lower costs. Wardrobes serve both as clothing storage and room dividers. Ordinary wardrobes only visually and spatially divide rooms, failing to provide adequate sound insulation. This limitation, especially in existing apartment renovations, hinders the improvement of room quality under refined design conditions when space is limited. Traditional bedroom partition walls are typically masonry walls, usually 200mm thick, which serve as sound insulation between rooms. When a wardrobe covers an entire partition wall in a bedroom, the entire masonry wall is hidden behind it, leaving a 600mm wide wardrobe-thickness area at the front, resulting in an overall thicker design.
[0004] This traditional way of arranging wardrobes is a common practice, but it also has many shortcomings:
[0005] A. Waste of Building Materials. Current practices involve first constructing masonry walls and then covering the entire wall with wardrobe cabinets. This process consumes the work of masons, while the wardrobe cabinets require carpenters, creating two separate trades. Constructing masonry walls during the civil engineering phase, only to have them covered by the wardrobe after completion, renders the wall finishes useless. Furthermore, the wardrobe's back panel merely serves to separate the wall from the clothing, offering only a single function. When the wall is demolished to allow the wardrobe to function as a partition, the original masonry wall materials become completely unusable, generating substantial construction waste.
[0006] B. Occupies usable indoor space. Since masonry walls are typically 200mm thick, adding the necessary 600mm width for the wardrobe itself results in a total wall and wardrobe thickness of 800mm. In small apartments, this thickness occupies more usable space, failing to demonstrate economic efficiency. Especially in renovations of existing older rooms, when space is limited, it hinders the creation of more spatial flexibility, and the wardrobe's arrangement is easily restricted by the walls.
[0007] C. Low construction efficiency. The traditional construction process requires completing the masonry walls first, and then installing the wardrobes in the subsequent interior decoration stage, which spans a long period of time and involves different trades.
[0008] D. It is detrimental to the stability of the sound insulation performance of the building envelope. In renovated apartment layouts, due to space constraints, thinner masonry walls are often chosen, or even masonry walls are eliminated altogether and room partitions are created directly using wardrobes. While the space is visually separated by wardrobes, the sound insulation is insufficient to meet usage requirements, creating a potential noise interference hazard. It also makes it difficult to accurately quantify the actual sound insulation of the wardrobes. For most homeowners and designers without professional acoustic experience, this poses a significant risk of noise interference to the project. Utility Model Content
[0009] In view of this, the purpose of this utility model is to provide a sound insulation structure for a household wardrobe used in prefabricated decoration. Through optimized design, the wardrobe has strong sound insulation performance, while saving space and materials, simplifying the construction process, and solving the problems of poor sound insulation, low construction efficiency, and wasted space in the existing technology.
[0010] To achieve the above objectives, this utility model provides the following technical solution:
[0011] A sound insulation structure for a home wardrobe used in prefabricated decoration includes a back panel sound insulation structure, a cabinet door, side panels, a bottom panel, and a top panel connecting the back panel sound insulation structure and the cabinet door. The key feature is that...
[0012] The sound insulation structure of the back panel includes a back panel, a first wooden board, a light steel keel, a second wooden board, and a base panel arranged sequentially from the inside of the wardrobe to the adjacent room. Damping sound insulation felt is provided between the back panel and the first wooden board, and between the second wooden board and the base panel. Centrifugal glass wool is filled in the light steel keel.
[0013] Furthermore, a baseboard is connected to the side of the base plate away from the inside of the wardrobe via a wooden keel, and a rubber vibration damping pad is filled between the base plate, the wooden keel, and the baseboard.
[0014] Furthermore, a baseboard is connected to the side of the top panel away from the inside of the wardrobe via a wooden keel, and rubber vibration damping pads are filled between the top panel, the wooden keel, and the baseboard.
[0015] Furthermore, the cabinet door is a hinged double door, with wooden support columns on both sides to connect the side panels and the cabinet door respectively. Both sides of the cabinet door are hinged to the corresponding wooden support columns.
[0016] The joint between the two double doors of the cabinet is made of Z-shaped overlapping surfaces, and a sealing rubber strip is provided at the overlapping area.
[0017] Furthermore, a sealing rubber strip is provided at the hinge surface between the cabinet door and the wooden support column.
[0018] Furthermore, wooden top moldings and wooden baseboards connected to the top and bottom panels are respectively provided at the top and bottom of the cabinet door to seal the edges.
[0019] Furthermore, the top of the cabinet door is beveled where it meets the wooden top line, and a sealing rubber strip with a hollow cylinder at the end is provided on the beveled surface of the wooden top line. A cut is provided on the top of the cabinet door that matches the sealing rubber strip with a hollow cylinder at the end.
[0020] The bottom of the cabinet door is beveled where it meets the wooden skirting board, and the beveled surface of the wooden skirting board is provided with a sealing rubber strip with a hollow cylindrical end. The bottom of the cabinet door is provided with a cut that matches the sealing rubber strip with a hollow cylindrical end.
[0021] Furthermore, the wardrobe is equipped with multiple inner partitions that are fixedly installed on the back panel.
[0022] Furthermore, the cabinet doors, back panel, side panels, bottom panel, and top panel are made of wood veneer, MDF, or plywood.
[0023] Furthermore, the baseboard is made of one of calcium silicate board, Eternit board, or reinforced fiber gypsum board.
[0024] The beneficial effects of this utility model are as follows:
[0025] First, this utility model provides a sound insulation structure for a household wardrobe used in prefabricated decoration. By combining the back panel and the partition wall into one through the back panel sound insulation structure, the overall thickness of the wall and wardrobe is reduced, saving the effective usable indoor area and saving various building decoration materials.
[0026] Secondly, the overall sound insulation structure of the wardrobe is sturdy and durable, with excellent sound insulation performance, avoiding sound insulation gaps and loopholes, and does not reduce the various physical properties of traditional walls and wardrobes; thirdly, this construction method helps engineering technicians to accurately calculate and evaluate the actual sound insulation of the wall, facilitating the quantitative analysis of sound insulation data; finally, this utility model adopts a prefabricated assembly method, which is disassembled and reused, and is recyclable, reducing the emission of fixed waste. The materials are environmentally friendly and pollution-free, which is beneficial to environmental protection.
[0027] In the field of prefabricated home decoration, this technology significantly increases the effective usable indoor area, saves building decoration materials, and provides stable sound insulation performance for rooms, thereby improving the quality of the building's indoor environment. The sound insulation structure of this prefabricated wardrobe is quick and easy to install, shortening the construction cycle and reducing solid building waste emissions, thus meeting the national demand for high-quality development and the direction of prefabricated construction.
[0028] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:
[0030] Figure 1 This is a cross-sectional view of a sound insulation structure for a household wardrobe used in prefabricated decoration, as described in the embodiment.
[0031] Figure 2 This is a vertical cross-sectional view of a sound insulation structure for a household wardrobe used in prefabricated decoration, as shown in the embodiment.
[0032] Figure 3 This is a node diagram of the cabinet door when it is opened, representing a sound insulation structure for a home wardrobe used in prefabricated decoration, as shown in the embodiment.
[0033] Attached reference numerals: Cabinet door 1, Side panel 2, Back panel 3, Inner partition 4, Bottom panel 5, Top panel 6, Wooden support column 7, Damping sound insulation felt 8, Light steel keel 9, Centrifugal glass wool 10, First wooden board 11, Baseboard 12, Hinge 13, Sealing rubber strip 14, Wooden skirting board 15, Wooden keel 16, Rubber vibration damping pad 17, Cabinet door handle 18, Wooden top line 19, Second wooden board 20. Detailed Implementation
[0034] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0035] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0036] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0037] Please see Figures 1-3 This is a sound insulation structure for home wardrobes used in prefabricated decoration. Through the combination of multiple layers of sound insulation materials, sealing structure design and vibration reduction measures, it achieves efficient sound insulation between the cabinet and adjacent rooms, while also taking into account moisture resistance, aesthetics and ease of construction.
[0038] The sound insulation structure for a home wardrobe used in prefabricated decoration includes a back panel sound insulation structure, a cabinet door 1, a side panel 2 connecting the back panel sound insulation structure and the cabinet door 1, a bottom panel 5, and a top panel 6. Its key feature is...
[0039] The sound insulation structure of the back panel includes a back panel 3, a first wooden board 11, a light steel keel 9, a second wooden board 20, and a base board 12 arranged sequentially from the inside of the wardrobe to the adjacent room. Damping sound insulation felt 8 is provided between the back panel 3 and the first wooden board 11, and between the second wooden board 20 and the base board 12. Centrifugal glass wool 10 is filled in the light steel keel 9.
[0040] Specifically, in this embodiment, the aforementioned back panel sound insulation structure, from the inside of the wardrobe to the adjacent room, consists of a 9mm thick wood veneer back panel and a 12mm thick wood board (first wood board 11), with a 2mm thick damping sound insulation felt sandwiched in between. The two layers of boards are supported by a 50mm thick light steel keel 9 at the rear, and the light steel keel is filled with 50mm thick centrifugal glass wool, with a density of 48kg / m³. 3 It is wrapped with fiberglass cloth. On the other side of the light steel keel are a 12mm thick wooden board (second wooden board 20) and a 12mm thick calcium silicate board (base board 12), with a 2mm thick damping sound insulation felt sandwiched in between. The light steel keel 9 has 3mm thick damping sound insulation felt applied to the contact surfaces with the floor, ceiling, and side walls. The damping sound insulation felt is made of EPDM rubber and refined mineral powder. The wood grain color of the inner wood veneer back panel is chosen by the homeowner to coordinate with the overall wardrobe design. The outer calcium silicate board maintains the same finish as the walls in adjacent rooms and can be painted with latex paint, wallpaper, or wall coverings.
[0041] Furthermore, the base plate 5 is connected to the baseboard 12 via a wooden keel 16 on the side away from the wardrobe interior, and a rubber vibration damping pad 17 is filled between the base plate 5, the wooden keel 16 and the baseboard 12.
[0042] Furthermore, the top plate 6 is connected to the base plate 12 on the side away from the inside of the wardrobe via a wooden keel 16, and a rubber vibration damping pad 17 is filled between the top plate 6, the wooden keel 16 and the base plate 12.
[0043] Specifically, in this embodiment, the bottom and top of the cabinet are 9mm thick wood veneer bottom and top panels, which are connected to the 12mm thick calcium silicate board (base board 12) at the rear by 30mm*25mm wooden keel. Rubber vibration damping pads are filled between the wooden keels. The contact surface between the 12mm thick calcium silicate board and the civil engineering floor slab is covered with 3mm thick damping sound insulation felt.
[0044] Furthermore, wooden top trim 19 and wooden skirting board 15, which are connected to the top plate 6 and bottom plate 5 respectively, are provided at the top and bottom of the cabinet door 1 to seal the edges.
[0045] Furthermore, the top of the cabinet door 1 is beveled at the point where it meets the wooden top line 19, and a sealing rubber strip 14 with a hollow cylinder at the end is provided on the beveled surface of the wooden top line 19. A cut is provided on the top of the cabinet door to match the sealing rubber strip with a hollow cylinder at the end.
[0046] The bottom of the cabinet door is beveled where it meets the wooden skirting board 15, and the beveled surface of the wooden skirting board 15 is provided with a sealing rubber strip 14 with a hollow cylindrical end. The bottom of the cabinet door is provided with a cut that matches the sealing rubber strip with a hollow cylindrical end.
[0047] Furthermore, the cabinet door 1 is a hinged double door, with wooden support columns 7 on both sides to connect the side panel 2 and the cabinet door 1 respectively. Both sides of the cabinet door are hinged to the corresponding wooden support columns 7 via hinges 13.
[0048] The joint between the two double doors of the cabinet is made of Z-shaped overlapping surfaces, and a Z-shaped sealing rubber strip 14 is provided at the overlapping area.
[0049] Furthermore, a sealing rubber strip 14 is provided at the hinge surface between the cabinet door 1 and the wooden support column 7.
[0050] Furthermore, the wardrobe is equipped with multiple inner partitions 4 that are fixedly installed on the back panel.
[0051] Specifically, in this embodiment, the cabinet door 1 is made of 15mm thick wood veneer panel, and the cabinet door frame and the wooden support columns 7 on both sides are provided with a notch and a beveled mating surface. The mating surface is provided with a sealing rubber strip 14 and forms a continuous hollow cylinder at the notch.
[0052] The lower baseboard of the cabinet has a damping sound insulation felt at the contact surface with the floor slab, which serves to seal gaps, isolate vibrations, and prevent moisture. Calcium silicate board is compacted on top to seal the gap between the back panel sound insulation structure and the floor. Wooden joists support the calcium silicate board and the inner wood veneer panel, with rubber vibration damping pads 17 inside for sound insulation, vibration reduction, and moisture prevention. The wood veneer panel has a wood grain color consistent with the cabinet body. Custom-made wooden skirting boards 15 finish the lower sound insulation layer, creating an aesthetically pleasing wardrobe skirting frame in the room. The upper part of the cabinet body has a damping sound insulation felt at the contact surface with the top of the floor slab, with the same construction and function as the lower part. Custom-made wooden top molding 19 finishes the upper sound insulation layer, creating an aesthetically pleasing wardrobe top molding frame in the room.
[0053] The wardrobe's interior sides are lined with wood veneer panels as side panels 2, serving as the interior finish. Damping sound insulation felt is pressed between the back and the wall, increasing the sound insulation of the back panel while also preventing moisture from entering the wardrobe. Wooden support columns are installed on both exterior sides, housing the hinges for the wardrobe doors 1 and providing support for them. These columns also help to seal the edges of the side panels 2, creating an aesthetically pleasing border finish on the exterior. Internal partitions 4 are installed as needed.
[0054] The wardrobe features hinged double doors, opened and closed via hinges 13 mounted on two wooden support columns 7. Two door handles 18 are located in the center of each door. Beveled surfaces are provided at the points where the wardrobe doors meet the wooden support columns 7 on both sides, the top of the wardrobe doors and the wooden top line 19, and the bottom of the wardrobe doors and the wooden baseboard 15. Continuous sealing rubber strips with hollow cylindrical ends are installed on these beveled surfaces. Recesses are provided around the inside of the doors. As the doors and frame beveled surfaces are fully fitted together, the hollow cylindrical sealing rubber strips are fully compressed at the recesses, forming an additional layer of sound insulation besides the back panel's soundproofing structure.
[0055] The back panel's sound insulation structure forms a double-layer sound insulation pattern with the cabinet door, and a cavity is formed inside the cabinet in the middle, where the clothes hung inside also have a certain sound absorption effect. The whole wardrobe has a double sound insulation layer with a sound-absorbing cavity in the middle.
[0056] Furthermore, the cabinet doors, back panel, side panels, bottom panel, and top panel are made of wood veneer, MDF, or plywood; the base panel is made of calcium silicate board, Eternit board, or reinforced fiber gypsum board. The 2mm and 3mm thick damping sound insulation felt 8 is made of EPDM (ethylene propylene diene monomer) and refined mineral powder. EPDM can be replaced with SBR (styrene-butadiene rubber) or CR (chloroprene rubber), and the added mineral powder can be replaced with iron powder. The sealing rubber strip 14 is made of NBR (nitrile butadiene rubber) and can be replaced with FKM (fluororubber).
[0057] This embodiment significantly improves the sound insulation of the wardrobe through a double sound insulation layer + sound absorption cavity design, multi-material synergistic vibration reduction and full boundary sealing. At the same time, it solves the problems of sound leakage, insufficient moisture protection and complex construction of traditional wardrobes. The modular design facilitates later modification, conforms to the trend of prefabricated decoration, and is suitable for scenarios with high requirements for acoustics and space utilization in prefabricated decoration.
[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A sound insulation structure for a household wardrobe used in prefabricated decoration, comprising a back panel sound insulation structure, a cabinet door, a side panel, a bottom panel, and a top panel connecting the back panel sound insulation structure and the cabinet door, characterized in that: The sound insulation structure of the back panel includes a back panel, a first wooden board, a light steel keel, a second wooden board, and a base panel arranged sequentially from the inside of the wardrobe to the adjacent room. Damping sound insulation felt is provided between the back panel and the first wooden board, and between the second wooden board and the base panel. Centrifugal glass wool is filled in the light steel keel.
2. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 1, characterized in that: The base plate is connected to the baseboard on the side away from the inside of the wardrobe by a wooden keel, and a rubber vibration damping pad is filled between the base plate, the wooden keel and the baseboard.
3. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 1, characterized in that: The top panel is connected to the baseboard on the side away from the wardrobe interior via wooden joists, and rubber vibration damping pads are filled between the top panel, wooden joists, and baseboard.
4. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 1, characterized in that: The cabinet door is a hinged double door, with wooden support columns on both sides to connect the side panels and the cabinet door respectively. Both sides of the cabinet door are hinged to the corresponding wooden support columns. The joint between the two double doors of the cabinet is made of Z-shaped overlapping surfaces, and a sealing rubber strip is provided at the overlapping area.
5. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 4, characterized in that: A sealing rubber strip is provided at the hinge surface between the cabinet door and the wooden support column.
6. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 4, characterized in that: Wooden top moldings and wooden baseboards, which connect to the top and bottom panels respectively, are provided at the top and bottom of the cabinet doors to seal the edges.
7. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 6, characterized in that: The top of the cabinet door is beveled where it meets the wooden top line, and a sealing rubber strip with a hollow cylinder at the end is provided on the beveled surface of the wooden top line. A cut is provided on the top of the cabinet door to match the sealing rubber strip with a hollow cylinder at the end. The bottom of the cabinet door is beveled where it meets the wooden skirting board, and the beveled surface of the wooden skirting board is provided with a sealing rubber strip with a hollow cylindrical end. The bottom of the cabinet door is provided with a cut that matches the sealing rubber strip with a hollow cylindrical end.
8. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 1, characterized in that: The wardrobe has multiple internal partitions that are fixedly installed on the back panel.
9. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 1, characterized in that: The cabinet doors, back panel, side panels, bottom panel, and top panel are made of wood veneer, MDF, or plywood.
10. The sound insulation structure for a household wardrobe used in prefabricated decoration according to claim 1, characterized in that: The baseboard is made of one of the following: calcium silicate board, Eternit board, or reinforced fiber gypsum board.