CN217000256U - Building wall body vibration and noise reduction device based on metamaterial vibration isolation - Google Patents
Building wall body vibration and noise reduction device based on metamaterial vibration isolation Download PDFInfo
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- CN217000256U CN217000256U CN202220473462.5U CN202220473462U CN217000256U CN 217000256 U CN217000256 U CN 217000256U CN 202220473462 U CN202220473462 U CN 202220473462U CN 217000256 U CN217000256 U CN 217000256U
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Abstract
The utility model relates to a building wall body vibration damping and noise reduction device based on metamaterial vibration isolation, which comprises a supporting framework and a vibration isolation mechanism, wherein the vibration isolation mechanism comprises: the metamaterial vibration isolation base materials are respectively arranged between two adjacent supporting rods of the supporting framework and the panel, and a plurality of corresponding cavities are arranged on the metamaterial vibration isolation base materials side by side; the isolating pieces are respectively arranged in the middle of the cavity of the metamaterial vibration isolation base material, the cross sections of the isolating pieces are all in a hollow octagonal shape, four partition plates connected to the side walls of the corresponding cavities are outwards integrally formed according to an equal angle of 90 degrees, and the four partition plates are matched with the isolating pieces to respectively partition the cavities into four isolating cavities; and a plurality of millimeter-scale through holes are uniformly formed between the front side surface and the rear side surface of the metamaterial vibration isolation base material and the isolation cavity, and between the hollow part of the isolator and the isolation cavity. The utility model can effectively meet the requirement of low-frequency noise reduction.
Description
Technical Field
The utility model relates to a wall body vibration and noise reduction device for a building, in particular to a wall body vibration and noise reduction device for a building based on metamaterial vibration isolation.
Background
With the continuous development of economy, the pursuit degree of people for the quality of life is gradually improved, and low-frequency noise is a serious noise problem in urban life at present. The low-frequency noise in the house is mostly transmitted through a wall body or a floor slab, the existing porous sound absorption materials made of various materials, such as glass wool, rock wool, slag wool, cotton hemp, general flat-plate sound insulation materials and the like, have poor absorption capacity to low-frequency sound waves, can greatly reduce the obvious sound in similar televisions, but basically has no effect on the low-frequency noise, even feels that the low-frequency noise is only left because larger environmental sound is filtered, and the low-frequency noise is more obvious.
Therefore, the utility model aims to design a building wall body vibration reduction and noise reduction device based on metamaterial vibration isolation, which can effectively realize sound energy dissipation to form obvious sound absorption performance, has different resonant frequencies, and can be used in a combined mode to realize sound wave absorption under multiple resonant frequencies, so that the low-frequency noise reduction requirement is effectively realized.
Disclosure of Invention
Aiming at the technical problems in the prior art, the utility model provides a building wall body vibration damping and noise reduction device based on metamaterial vibration isolation, and the building wall body vibration damping and noise reduction device based on the metamaterial vibration isolation can effectively solve the technical problems in the prior art.
The technical scheme of the utility model is as follows:
the utility model provides a device of making an uproar falls in wall body damping for building based on metamaterial vibration isolation, includes supporting framework, supporting framework contains a plurality of bracing pieces of vertical rigid coupling on the wall body side by side, the outside fixing device of bracing piece has corresponding panel, the device of making an uproar falls in wall body damping still includes vibration isolation mechanism, vibration isolation mechanism includes:
the metamaterial vibration isolation base materials are respectively arranged between two adjacent supporting rods and the panel, and a plurality of corresponding cavities are arranged on the metamaterial vibration isolation base materials side by side;
the isolating pieces are respectively arranged in the middle of the cavity of the metamaterial vibration isolation base material, the cross sections of the isolating pieces are all in a hollow octagonal shape, four partition plates connected to the side walls of the corresponding cavities are outwards integrally formed according to an equal angle of 90 degrees, and the four partition plates are matched with the isolating pieces to respectively partition the cavities into four isolating cavities;
and a plurality of millimeter-scale through holes are uniformly formed between the front side surface and the rear side surface of the metamaterial vibration isolation base material and the isolation cavity, and between the hollow part of the isolator and the isolation cavity.
The lengths of the four partition plates connected to the same partition member are different from each other.
The lateral surface middle part of bracing piece is equipped with the panel erection area, the both sides in panel erection area indent respectively are equipped with corresponding stationary blade installing zone, and there is corresponding flexible stationary blade fixed respectively between the stationary blade installing zone of two adjacent bracing pieces, the panel cover connect in the panel erection area of bracing piece, flexible stationary blade be extrusion state device in between the medial surface of panel and the stationary blade installing zone of bracing piece, the lateral surface of metamaterial vibration isolation substrate.
The support rods are made of aluminum profiles and are fixedly connected to corresponding walls through first expansion bolts arranged at intervals.
The lateral surface of flexible stationary blade extends to the outside of the panel mounting area of bracing piece, runs through corresponding second expansion bolts the bracing piece will the panel is fixed to corresponding wall body on, the medial surface butt of panel arrives the panel mounting area of bracing piece, the flexible stationary blade is extrusion state device in between the panel and the stationary blade mounting area of bracing piece, the lateral surface of metamaterial vibration isolation substrate.
The first expansion bolt and the second expansion bolt are both flat head expansion bolts.
The flexible fixing sheet is made of rubber materials, and two sides of the flexible fixing sheet are fixedly connected to the fixing sheet mounting areas of the two adjacent supporting rods through metal rubber adhesives.
The metamaterial vibration isolation base material is made of a polyurethane material.
The utility model has the advantages that:
1) the metamaterial vibration isolation base material of the vibration isolation mechanism is provided with a plurality of corresponding cavities side by side, and the cavities can be effectively divided into four isolation cavities through the intervention of the isolation pieces and the partition plates; and through the intervention of a plurality of millimeter-scale perforations, the sound waves can regularly pass through the isolation cavity and the hollow part of the isolation piece. When the frequency of incident sound waves reaches the resonance frequency, the sound pressure change in the hollow parts of the isolation cavity and the isolation piece can cause the air column at the perforated part to vibrate violently, so that sound energy dissipation is effectively realized, excellent sound absorption performance is presented, and the requirement of low-frequency noise reduction is effectively realized.
2) The four separation plates connected to the same separator have different lengths, so that the cavity can be effectively separated into four separation cavities with different specifications, and the four separation cavities with different specifications and the hollow part of the separator respectively have different resonance frequencies, so that the four separation cavities and the hollow part of the separator can jointly act to realize sound wave absorption under multiple resonance frequencies, and the low-frequency noise reduction requirement can be effectively further realized.
3) Each isolating piece is respectively matched with the corresponding partition plate to form a cross-shaped stable support, and the metamaterial vibration isolation base material between two adjacent cavities is also matched with the partition plates on two sides of the metamaterial vibration isolation base material to form the cross-shaped stable support, so that the wall body provided with the vibration isolation mechanism provided by the utility model has sufficient rigidity and strength, and the normal use of the wall body is not influenced.
4) A panel mounting area is arranged in the middle of the outer side face of the supporting framework, and corresponding fixing sheet mounting areas are arranged on two sides of the panel mounting area in a concave mode respectively. In the installation process, the metamaterial vibration isolation base material of the vibration isolation mechanism can be directly arranged between two adjacent supporting rods, then the flexible fixing piece is installed between the two adjacent supporting rods, and finally the panel is installed. The flexible fixing piece after the completion assembly is in an extrusion state and is arranged between the panel and the fixing piece mounting area of the supporting rod and the outer side face of the metamaterial vibration isolation base material, the assembly stability and firmness of each part can be effectively ensured, and the assembly error caused by unevenness of the wall body can be effectively adapted through the extrusion assembly of the flexible fixing piece, so that the quick and convenient installation of the vibration isolation mechanism on the wall body is effectively realized.
5) The support rods are respectively fixedly connected to the corresponding wall bodies through the first expansion bolts arranged at intervals, and the panel is fixed to the corresponding wall bodies through the second expansion bolts penetrating through the support rods, so that the assembly operation is convenient and fast, and the support rods and the panel can be respectively assembled on the wall bodies, so that the assembly stability of the utility model can be effectively further ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a second expansion bolt penetrating through a support rod to fix a panel to a wall.
Fig. 3 is a schematic structural view of the support rod.
Fig. 4 is a schematic structural view of the vibration isolation mechanism.
Fig. 5 is a sectional view of the vibration damping mechanism.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail by way of examples in conjunction with the accompanying drawings:
referring to fig. 1-5, a wall body vibration damping and noise reduction device for building based on metamaterial vibration isolation includes a supporting framework 1, the supporting framework 1 includes a plurality of supporting rods 101 that are vertically and fixedly connected to a wall body 2 side by side, the outside fixing device of the supporting rods 101 has a corresponding panel 102, the wall body vibration damping and noise reduction device further includes a vibration isolation mechanism 3, and the vibration isolation mechanism 3 includes:
the metamaterial vibration isolation base materials 301 are respectively arranged between two adjacent supporting rods 101 and the panel 102, and a plurality of corresponding cavities are arranged on the metamaterial vibration isolation base materials 301 side by side;
the partitions 302 are respectively arranged in the middle of the cavity of the metamaterial vibration isolation base material 301, the cross sections of the partitions 302 are all in a hollow octagonal shape, four partition plates 303 connected to the side walls of the corresponding cavities are integrally formed outwards on the partitions 302 at equal angles of 90 degrees, and the four partition plates 303 are matched with the partitions 302 to divide the cavity into four isolation cavities 4;
a plurality of millimeter-sized through holes 304 are uniformly provided between the front and rear side surfaces of the metamaterial vibration isolation base material 301 and the isolation chamber 4, and between the hollow portion of the isolator 302 and the isolation chamber 4.
The metamaterial vibration isolation base material 301 of the vibration isolation mechanism 3 is provided with a plurality of corresponding cavities side by side, and the cavities can be effectively divided into four isolation cavities 4 through the intervention of the isolation pieces 302 and the partition plates 303; through the intervention of a plurality of millimeter-sized perforations 304, the sound waves can regularly pass through the isolation cavity 4 and the hollow part of the isolation member 302. When the frequency of the incident sound wave reaches the resonance frequency, the sound pressure change in the hollow parts of the isolation cavity 4 and the isolation member 302 causes the air column at the perforated part to vibrate violently, thereby effectively realizing sound energy dissipation, presenting excellent sound absorption performance, and effectively realizing the low-frequency noise reduction requirement.
Each isolating piece 302 of the utility model is respectively matched with the corresponding partition plate 303 to form a cross-shaped stable support, and the metamaterial vibration isolation base material 301 between two adjacent cavities is also matched with the partition plates 303 at two sides thereof to form the cross-shaped stable support, so that the wall body 2 provided with the vibration isolation mechanism 3 of the utility model has enough rigidity and strength, and the normal use of the wall body 2 is not influenced.
The lengths of the four partition plates 303 connected to the same spacer 302 are different from each other, so that the cavity can be effectively separated into four isolation cavities 4 with different specifications, the four isolation cavities 4 with different specifications and the hollow part of the spacer 302 respectively have different resonance frequencies, and therefore, the acoustic wave absorption under the multiple resonance frequencies can be realized under the combined action, and the requirements of low frequency noise reduction can be effectively further realized.
The lateral surface middle part of bracing piece 101 is equipped with panel installation area 1011, the both sides of panel installation area 1011 indent respectively are equipped with corresponding stationary blade installing area 1012, and there is corresponding flexible stationary blade 5 fixed respectively between the stationary blade installing area 1012 of two adjacent bracing pieces 101, panel 102 cover connect in the panel installation area 1011 of bracing piece 101, flexible stationary blade 5 be extrusion state device in between the medial surface of panel 102 and the stationary blade installing area 1012 of bracing piece 101, the lateral surface of super material vibration isolation substrate 301.
In the installation process, the metamaterial vibration isolation base material 301 of the vibration isolation mechanism 3 can be directly arranged between two adjacent supporting rods 101, then the flexible fixing piece 5 is installed between the two adjacent supporting rods 101, and finally the panel 102 is installed. The flexible fixing piece 5 after the completion assembly is an extrusion state device and is arranged between the fixing piece mounting area 1012 of the panel 102 and the supporting rod 101 and the outer side surface of the metamaterial vibration isolation base material 301, the assembly stability and firmness of all parts can be effectively ensured, the extrusion assembly through the flexible fixing piece 5 can effectively adapt to the assembly errors caused by the unevenness of the wall body 2, and therefore the quick and convenient installation of the vibration isolation mechanism 3 on the wall body can be effectively realized.
The support rods 101 are made of aluminum profiles, and the support rods 101 are fixedly connected to the corresponding walls 2 through first expansion bolts 6 arranged at intervals.
The outer side face of the flexible fixing piece 5 extends to the outer side of the panel installation area 1011 of the supporting rod 101, the supporting rod 101 penetrates through the corresponding second expansion bolt 7, the panel 102 is fixed to the corresponding wall body 2, the inner side face of the panel 102 is abutted to the panel installation area 1011 of the supporting rod 101, and the flexible fixing piece 5 is arranged between the fixing piece installation area 1012 of the panel 102 and the supporting rod 101 and the outer side face of the metamaterial vibration isolation base material 301 in an extrusion state.
The first expansion bolt 6 and the second expansion bolt 7 are both flat head expansion bolts.
The support rods 101 are respectively fixedly connected to the corresponding wall bodies 2 through the first expansion bolts 6 arranged at intervals, and the panels 102 are fixed to the corresponding wall bodies 2 through the support rods 101 by the second expansion bolts 7, so that the assembling operation is convenient, and the support rods 101 and the panels 102 can be respectively assembled on the wall bodies 2, thereby effectively and effectively ensuring the assembling stability of the utility model.
The flexible fixing sheet 5 is made of a rubber material, and both sides of the flexible fixing sheet 5 are fixedly attached to the fixing sheet mounting areas 1012 of the adjacent two support bars 101 by a metal rubber adhesive. The metamaterial vibration isolation base material 301 is made of a polyurethane material.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a device of making an uproar falls in wall body damping for building based on metamaterial vibration isolation, includes supporting framework (1), supporting framework (1) contains a plurality of bracing pieces (101) of vertical rigid coupling side by side on wall body (2), the outside fixing device of bracing piece (101) has corresponding panel (102), its characterized in that: the wall body vibration and noise reduction device further comprises a vibration isolation mechanism (3), wherein the vibration isolation mechanism (3) comprises:
the metamaterial vibration isolation base materials (301) are respectively arranged between two adjacent supporting rods (101) and the panel (102), and a plurality of corresponding cavities are arranged on the metamaterial vibration isolation base materials (301) side by side;
the isolating pieces (302) are respectively arranged in the middle of the cavity of the metamaterial vibration isolation base material (301), the cross sections of the isolating pieces (302) are all in a hollow octagonal shape, four separating plates (303) connected to the side walls of the corresponding cavities are outwards integrally formed on the isolating pieces (302) at equal angles of 90 degrees, and the four separating plates (303) are matched with the isolating pieces (302) to respectively separate the cavities into four isolating cavities (4);
and a plurality of millimeter-sized through holes (304) uniformly arranged between the front side surface and the rear side surface of the metamaterial vibration isolation base material (301) and the isolation cavity (4) and between the hollow part of the isolator (302) and the isolation cavity (4).
2. The building wall body vibration damping and noise reducing device based on metamaterial vibration isolation according to claim 1, wherein: the four partition plates (303) connected to the same partition member (302) are different in length from each other.
3. The building wall body vibration damping and noise reducing device based on metamaterial vibration isolation according to claim 2, wherein: the lateral surface middle part of bracing piece (101) is equipped with panel erection area (1011), the both sides of panel erection area (1011) are the indent respectively and are equipped with corresponding stationary blade installing zone (1012), and there is corresponding flexible stationary blade (5) fixed respectively between stationary blade installing zone (1012) of two adjacent bracing pieces (101), panel (102) cover connect in panel erection area (1011) of bracing piece (101), flexible stationary blade (5) be extrusion state device in between the medial surface of panel (102) and stationary blade installing zone (1012) of bracing piece (101), the lateral surface of metamaterial vibration isolation substrate (301).
4. The building wall body vibration damping and noise reducing device based on metamaterial vibration isolation according to claim 3, wherein: the supporting rods (101) are made of aluminum profiles, and the supporting rods (101) are fixedly connected to corresponding walls (2) through first expansion bolts (6) arranged at intervals.
5. The building wall body vibration damping and noise reduction device based on metamaterial vibration isolation according to claim 4, wherein: the lateral surface of flexible stationary blade (5) extends to the outside of panel installing zone (1011) of bracing piece (101), runs through corresponding second expansion bolts (7) bracing piece (101) will panel (102) is fixed to corresponding wall body (2), the medial surface of panel (102) is supported to panel installing zone (1011) of bracing piece (101), flexible stationary blade (5) be extrusion state device in between panel (102) and the stationary blade installing zone (1012) of bracing piece (101), the lateral surface of super material vibration isolation substrate (301).
6. The building wall body vibration damping and noise reducing device based on metamaterial vibration isolation according to claim 5, wherein: the first expansion bolt (6) and the second expansion bolt (7) are both flat head expansion bolts.
7. The building wall body vibration damping and noise reducing device based on metamaterial vibration isolation according to claim 6, wherein: the flexible fixing sheet (5) is made of rubber materials, and two sides of the flexible fixing sheet (5) are fixedly connected to fixing sheet mounting areas (1012) of two adjacent supporting rods (101) through metal rubber adhesives.
8. The building wall body vibration damping and noise reducing device based on metamaterial vibration isolation according to claim 1, wherein: the metamaterial vibration isolation substrate (301) is made of a polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220473462.5U CN217000256U (en) | 2022-03-04 | 2022-03-04 | Building wall body vibration and noise reduction device based on metamaterial vibration isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220473462.5U CN217000256U (en) | 2022-03-04 | 2022-03-04 | Building wall body vibration and noise reduction device based on metamaterial vibration isolation |
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| Publication Number | Publication Date |
|---|---|
| CN217000256U true CN217000256U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220473462.5U Active CN217000256U (en) | 2022-03-04 | 2022-03-04 | Building wall body vibration and noise reduction device based on metamaterial vibration isolation |
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| CN (1) | CN217000256U (en) |
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- 2022-03-04 CN CN202220473462.5U patent/CN217000256U/en active Active
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