CN112252499A - Plate type sound absorption structure capable of hanging space sound absorber - Google Patents
Plate type sound absorption structure capable of hanging space sound absorber Download PDFInfo
- Publication number
- CN112252499A CN112252499A CN202011038048.3A CN202011038048A CN112252499A CN 112252499 A CN112252499 A CN 112252499A CN 202011038048 A CN202011038048 A CN 202011038048A CN 112252499 A CN112252499 A CN 112252499A
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- sound
- absorber
- sound absorbing
- hook
- space
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 71
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 62
- 239000011358 absorbing material Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 239000006098 acoustic absorber Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 24
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000011900 installation process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to a plate type sound absorption structure capable of hanging a space sound absorber, which comprises a structure body, wherein the structure body comprises the space sound absorber, a plate type sound absorption structure detachably connected with the space sound absorber through a hook and a fixed support, one side of the fixed support is fixed on a wall, and the other side of the fixed support is fixedly connected with the plate type sound absorption structure; if the frequency of the noise sound wave is complex, and when lower cut-off frequency is needed, only the space sound absorber needs to be installed on the plate-type sound absorbing structure, so that the whole sound absorbing structure can absorb the noise sound waves with different frequencies, and the sound absorbing effect is enhanced. The structure is simple to install and convenient to operate, can ensure required cut-off frequency while fully utilizing the free field space, and achieves good sound absorption effect.
Description
Technical Field
The invention relates to the technical field of acoustic measurement and noise control, in particular to a plate type sound absorption structure capable of hanging a space sound absorber.
Background
The anechoic chamber is an important facility in an acoustic test, and in order to meet the requirement of anechoic, each interface in the anechoic chamber is provided with a strong sound absorption structure. In the prior art, most of the muffling chambers adopt a single sound absorber structure, such as a space sound absorber or a thin plate resonant structure, to achieve the purpose of sound absorption. However, when the spatial sound absorber is used alone, the free field space of the anechoic chamber is limited, and the sound absorption effect is poor; when the plate-type sound absorption structure is used alone, the lower cut-off frequency cannot be achieved. Such a method of using the sound absorber alone or using the sound absorbing structure alone has a problem that the sound absorbing effect of noise sound waves of some frequencies is poor, in addition to the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing a plate type sound absorption structure capable of hanging a space sound absorber, which is simple to mount and convenient to operate, can ensure the required cut-off frequency while fully utilizing the free field space, and achieves a good sound absorption effect.
The technical scheme includes that the plate type sound absorption structure capable of hanging the space sound absorber comprises a structure body, wherein the structure body comprises the space sound absorber, a plate type sound absorption structure and a fixed support, the plate type sound absorption structure is detachably connected with the space sound absorber through a hook, one side of the fixed support is fixed on a wall, and the other side of the fixed support is fixedly connected with the plate type sound absorption structure.
The invention has the beneficial effects that: by adopting the plate type sound absorption structure capable of hanging the space sound absorber, when the structure pursues a larger measurement space and does not need lower cut-off frequency, the space sound absorber is taken down from the plate type sound absorption structure, and the required sound absorption effect can be achieved; if the frequency of the noise sound wave is complex, and when lower cut-off frequency is needed, only the space sound absorber needs to be installed on the plate-type sound absorbing structure, so that the whole sound absorbing structure can absorb the noise sound waves with different frequencies, and the sound absorbing effect is enhanced. The structure is simple to install and convenient to operate, can ensure required cut-off frequency while fully utilizing the free field space, and achieves good sound absorption effect.
As the priority, the structure body also comprises a sound absorption material positioned between the wall and the plate-type sound absorption structure, and by adopting the structure, the sound absorption material is arranged on the wall and the plate-type sound absorption structure, so that the noise sound waves with different frequencies can be effectively absorbed, and the sound absorption effect of the structure is improved.
As preferentially, the fixed bolster includes the horizontal stand of the surface of perpendicular to wall, the right angle fixed bolster of being connected with the horizontal stand, the chamber of placing that supplies sound absorbing material and board-like sound absorbing structure to place, adopts this structure, and sound absorbing material and board-like sound absorbing structure are located places the intracavity, and sound absorbing material places in one side of board-like sound absorbing structure promptly, can absorb the noise sound wave of different frequencies effectively, improves the sound absorbing effect of this structure.
Preferably, the structure body further comprises a cavity, the cavity is located between the wall and the sound absorption material and is arranged in the horizontal support, a certain distance is reserved between the support and the wall in the installation process by adopting the structure, namely, a cavity is reserved between the wall and the support, the sound absorption principle of the cavity resonator is utilized, the acoustic performance of the anechoic chamber is guaranteed, and the sound absorption effect is enhanced.
As the priority, the couple includes L shape frid couple and the barb form couple of can dismantling the connection with the board-like sound absorbing structure, and L shape frid couple and barb form couple be integrated into one piece structure, adopt this structure, can realize dismantling between board-like sound absorbing structure and the sound absorbing material and be connected simple, convenient operation.
As prior, board-like sound absorbing structure places the hole including supplying L shape frid couple to place, places the hole including the embedding hole and with the guide rail hole of embedding hole intercommunication, adopts this structure, and L shape frid couple is placed downtheholely at the embedding through lining up the embedding hole, then removes along the guide rail hole, makes L shape frid couple and board-like sound absorbing structure laminating, just so makes L shape couple and board-like sound absorbing structure realize fixed restraint.
Preferably, the spatial sound absorber comprises a slotted hole for the hook-shaped inverted hook to buckle into, and by adopting the structure, the hook-shaped inverted hook is buckled into the slotted hole, so that the spatial sound absorber is detachably connected with the hook-shaped inverted hook, and the spatial sound absorber is simple to mount and convenient to operate.
Preferably, the plate-type sound absorption structure comprises a plurality of sound absorption through holes which are uniformly distributed, and the sound absorption through holes can effectively absorb noise sound waves with different frequencies, so that the sound absorption effect of the structure is improved.
As the priority, the space sound absorber comprises a wedge-shaped sound absorption structure, and by adopting the structure, the whole sound absorption structure can absorb noise sound waves with different frequencies, so that the sound absorption effect is enhanced.
Drawings
FIG. 1 is a front view of a panel-form sound absorbing structure of a hangable space sound absorber according to the present invention;
FIG. 2 is a schematic structural view of a fixing bracket according to the present invention;
FIG. 3 is a schematic structural view of a panel-form sound absorbing structure according to the present invention;
FIG. 4 is a schematic structural view of a spatial sound absorber according to the present invention;
FIG. 5 is a schematic view of the hook structure of the present invention;
FIG. 6 is a right side view of the present invention hook;
as shown in the figure: 1. a wall; 2. fixing a bracket; 3. a sound absorbing material; 4. a plate-type sound absorbing structure; 5. hooking; 6. a spatial sound absorber; 7. a cavity; 8. a wedge-shaped sound absorption structure; 21. a horizontal support; 22. a right-angle fixed support; 23. a placement chamber; 41. an insertion hole; 42. sound absorption perforations; 43. a guide rail hole; 51. l-shaped groove plate hooks; 52. a barb-shaped hook; 61. a slot hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings in combination with specific embodiments so that those skilled in the art can practice the invention with reference to the description, and the scope of the invention is not limited to the specific embodiments.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.
The invention relates to a plate type sound absorption structure capable of hanging a space sound absorber, which comprises a structure body, as shown in figure 1, wherein the structure body comprises a space sound absorber 6, a plate type sound absorption structure 4 detachably connected with the space sound absorber 6 through a hook 5 and a fixed support 2, one side of the fixed support 2 is fixed on a wall 1, and the other side of the fixed support is fixedly connected with the plate type sound absorption structure 4. When the structure in fig. 1 pursues a larger measurement space and does not need a lower cut-off frequency, the required sound absorption effect can be achieved by taking the space sound absorber off the plate type sound absorption structure; if the frequency of the noise sound wave is complex, and when lower cut-off frequency is needed, only the space sound absorber needs to be installed on the plate-type sound absorbing structure, so that the whole sound absorbing structure can absorb the noise sound waves with different frequencies, and the sound absorbing effect is enhanced. The structure is simple to install and convenient to operate, can ensure required cut-off frequency while fully utilizing the free field space, and achieves good sound absorption effect.
As shown in fig. 1, the structure body further comprises a sound absorption material 3 located between the wall 1 and the plate-type sound absorption structure 4, and by adopting the structure, the sound absorption material 3 is arranged on the wall 1 and the plate-type sound absorption structure 4, so that noise waves with different frequencies can be effectively absorbed, and the sound absorption effect of the structure is improved.
The sound absorption material 3 and the space sound absorber 6 can be made of porous materials such as foamed plastics, soft fibers and glass wool, so that noise can be efficiently absorbed, and the plate-type sound absorption structure 4 can be made of materials such as asbestos cement, hard fiber boards and plywood, so that noise can be efficiently absorbed.
As shown in fig. 2, the fixing bracket 2 includes a horizontal bracket 21 perpendicular to the outer surface of the wall 1, a right-angle fixing bracket 22 connected to the horizontal bracket 21, and a placing cavity 23 for placing the sound absorbing material 3 and the plate-type sound absorbing structure 4, and with this structure, the sound absorbing material 3 and the plate-type sound absorbing structure 4 are located in the placing cavity 23, that is, the sound absorbing material 3 is placed on one side of the plate-type sound absorbing structure 4, so that the noise sound wave can be effectively absorbed, and the sound absorbing effect of this structure is improved.
As shown in fig. 1, the structural body further includes a cavity 7, the cavity 7 is located between the wall 1 and the sound-absorbing material 3, and in the horizontal bracket 21, by adopting the structure, a certain distance should be left between the fixing bracket 2 and the wall 1 in the installation process, that is, a cavity 7 is left between the wall 1 and the fixing bracket 2, and by using the sound absorption principle of the cavity resonator, the acoustic performance of the anechoic chamber is ensured, and the sound absorption effect is enhanced.
As shown in fig. 5, the hook 5 includes an L-shaped groove plate hook 51 detachably connected to the plate-type sound absorbing structure 4 and a barb-shaped hook 52 detachably connected to the spatial sound absorber 6, the L-shaped groove plate hook 51 and the barb-shaped hook 52 are integrally formed, and by adopting the structure, the detachable connection between the plate-type sound absorbing structure 4 and the sound absorbing material 3 can be realized, and the installation is simple and the operation is convenient.
As shown in fig. 3, the panel sound absorbing structure 4 includes a placing hole for placing the L-shaped groove plate hook 51, and the placing hole includes an insertion hole 41 and a guide rail hole 43 communicating with the insertion hole 41, and with this structure, the L-shaped groove plate hook 51 is placed in the insertion hole 41 by aligning the insertion hole 41, and then moved along the guide rail hole 43, so that the L-shaped groove plate hook 51 is attached to the panel sound absorbing structure 4, and thus the L-shaped groove plate hook 51 and the panel sound absorbing structure 4 are fixedly restrained.
As shown in fig. 4, the spatial sound absorber 6 includes a slot 61 into which the barb-like hook 52 is fastened, and with this structure, the barb-like hook 52 is fastened into the slot 61, so that the spatial sound absorber 6 is detachably connected with the barb-like hook 52, and the mounting is simple and the operation is convenient.
In the installation process, the hook 5 and the spatial sound absorber 6 are connected firstly, the barb-shaped hook 52 on the right side of the hook 5 is aligned to the slotted hole 61 on the connecting surface of the spatial sound absorber 6 and the plate-type sound absorption structure 4, the hook is inserted and then rotated 180 degrees, so that the barb structure of the barb-shaped hook 52 is arranged above the inner side of the slotted hole 61, and the hook 5 and the spatial sound absorber 6 are fixedly restrained. And then, connecting the space sound absorber 6 with the hook 5 with the plate sound absorption structure 4, aligning the L-shaped groove plate hook 51 on the left side of the hook 5 with the embedding hole 41 of the plate sound absorption structure 4, horizontally embedding the L-shaped groove plate hook 51, and then moving the L-shaped groove plate hook to the right along the guide rail hole, so that the L-shaped hook and the plate sound absorption structure are fixedly restrained. In the installation process of the space sound absorber, the hook and the space sound absorber are firstly installed, and then the space sound absorber is integrally installed on the plate-type sound absorption structure, so that the installation method is convenient. It should be noted that, since the slot 42 includes the insertion hole 41 and the rail hole 43, when the L-shaped slot plate hook 51 on the left side of the hook 5 is engaged with the insertion hole 41, the spatial sound absorber 6 and the panel sound absorbing structure 4 are not aligned, and there is a left deviation therebetween, and only after the spatial sound absorber 6 with the hook is moved rightward along the rail hole 43, the spatial sound absorber 6 and the panel sound absorbing structure 4 can be completely aligned. Therefore, the space sound absorber 6 should be installed from right to left in sequence, so as to avoid that the space sound absorber 6 on the right side cannot be installed because the space sound absorption structure 4 on the left side is installed first.
As shown in fig. 3, the panel type sound absorbing structure 4 includes a plurality of sound absorbing through holes 42 uniformly distributed, and the sound absorbing through holes 42 can effectively absorb noise sound waves with different frequencies, thereby improving the sound absorbing effect of the structure.
As shown in fig. 1, the spatial sound absorber 6 includes a wedge-shaped sound-absorbing structure 8, and by adopting the structure, the overall sound-absorbing structure can absorb noise waves with different frequencies, so that the sound-absorbing effect is enhanced.
It is considered that the hook 5 and the slot are rubbed at the time of assembly, so that noise is easily introduced, and further, a resonance problem is considered. The introduction of noise can be further reduced by providing a flexible connection between the hooks 5 and the slots, for example by providing a rubber sleeve or a heat-shrink material on the hooks 5.
In summary, compared with the prior art, the plate type sound absorption structure capable of hanging the spatial sound absorber provided by the invention can select whether to install the spatial sound absorber under different working conditions so as to achieve a better sound absorption effect. If the noise sound wave frequency is relatively complicated, the installation space sound absorber satisfies higher sound absorption index in order to strengthen the sound absorption effect, because adopt the couple to make its installation simple, convenient operation has solved the relatively poor problem of sound absorption effect of anechoic chamber to different frequency noise sound waves effectively, simultaneously make full use of free field space.
Claims (9)
1. The utility model provides a can hang board-like sound absorbing structure of space acoustic absorber, includes the structure body, its characterized in that: the structure body comprises a space sound absorber, a plate-type sound absorption structure and a fixed support, wherein the plate-type sound absorption structure is detachably connected with the space sound absorber through a hook, one side of the fixed support is fixed on a wall, and the other side of the fixed support is fixedly connected with the plate-type sound absorption structure.
2. A panel-form sound absorbing structure from which a spatial sound absorber can be hung according to claim 1, wherein: the structural body further comprises a sound absorbing material located between the wall and the panel sound absorbing structure.
3. A panel-form sound absorbing structure from which a spatial sound absorber can be hung according to claim 2, wherein: the fixed bolster includes the horizontal stand of the surface of perpendicular to wall, the right angle fixed bolster of being connected with the horizontal stand, supplies sound absorbing material and the board-like sound absorbing structure to place the chamber.
4. A panel-form sound absorbing structure of a hangable space absorber as defined in claim 3, wherein: the structural body further comprises a cavity, and the cavity is located between the wall and the sound absorption material and is arranged in the horizontal support.
5. A panel-form sound absorbing structure from which a spatial sound absorber can be hung according to claim 1, wherein: the hook comprises an L-shaped groove plate hook detachably connected with the plate-type sound absorption structure and a barb-shaped hook detachably connected with the space sound absorption body, and the L-shaped groove plate hook and the barb-shaped hook are of an integrally formed structure.
6. A panel-form sound absorbing structure from which a spatial sound absorber can be hung, according to claim 5, wherein: the plate-type sound absorption structure comprises a placing hole for placing the L-shaped groove plate hook, and the placing hole comprises an embedding hole and a guide rail hole communicated with the embedding hole.
7. A panel-form sound absorbing structure from which a spatial sound absorber can be hung, according to claim 5, wherein: the spatial sound absorber comprises a slotted hole for buckling the barb-shaped hook.
8. A panel-form sound absorbing structure of a hangable space absorber as defined in claim 1 or claim 5, wherein: the panel sound absorbing structure comprises a plurality of sound absorbing perforations which are evenly distributed.
9. A panel-form sound absorbing structure from which a spatial sound absorber can be hung according to claim 1, wherein: the spatial sound absorber comprises a wedge-shaped sound-absorbing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011038048.3A CN112252499A (en) | 2020-09-28 | 2020-09-28 | Plate type sound absorption structure capable of hanging space sound absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011038048.3A CN112252499A (en) | 2020-09-28 | 2020-09-28 | Plate type sound absorption structure capable of hanging space sound absorber |
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| Publication Number | Publication Date |
|---|---|
| CN112252499A true CN112252499A (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011038048.3A Pending CN112252499A (en) | 2020-09-28 | 2020-09-28 | Plate type sound absorption structure capable of hanging space sound absorber |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3712413A (en) * | 1971-12-15 | 1973-01-23 | O Eckel | Sound absorbing device |
| JP2007162227A (en) * | 2005-12-09 | 2007-06-28 | Kankyo Keiei Sogo Kenkyusho:Kk | Sound absorbing board |
| CN202530590U (en) * | 2011-12-30 | 2012-11-14 | 上海声望声学工程有限公司 | Wedge absorber and installation structure thereof |
| CN206189630U (en) * | 2016-11-22 | 2017-05-24 | 北京科奥克声学技术有限公司 | Sound absorption wedge of easily installing |
| CN107237413A (en) * | 2017-06-07 | 2017-10-10 | 浙江农林大学 | A kind of programmable combination hole sound absorbing material |
| CN108457393A (en) * | 2017-02-17 | 2018-08-28 | S.I.Pan公司 | Anechoic room sound-absorption structural body and the anechoic room for including anechoic room sound-absorption structural body |
-
2020
- 2020-09-28 CN CN202011038048.3A patent/CN112252499A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3712413A (en) * | 1971-12-15 | 1973-01-23 | O Eckel | Sound absorbing device |
| JP2007162227A (en) * | 2005-12-09 | 2007-06-28 | Kankyo Keiei Sogo Kenkyusho:Kk | Sound absorbing board |
| CN202530590U (en) * | 2011-12-30 | 2012-11-14 | 上海声望声学工程有限公司 | Wedge absorber and installation structure thereof |
| CN206189630U (en) * | 2016-11-22 | 2017-05-24 | 北京科奥克声学技术有限公司 | Sound absorption wedge of easily installing |
| CN108457393A (en) * | 2017-02-17 | 2018-08-28 | S.I.Pan公司 | Anechoic room sound-absorption structural body and the anechoic room for including anechoic room sound-absorption structural body |
| CN107237413A (en) * | 2017-06-07 | 2017-10-10 | 浙江农林大学 | A kind of programmable combination hole sound absorbing material |
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Application publication date: 20210122 |