CN113235750A - Floor noise reduction device - Google Patents
Floor noise reduction device Download PDFInfo
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- CN113235750A CN113235750A CN202110748535.7A CN202110748535A CN113235750A CN 113235750 A CN113235750 A CN 113235750A CN 202110748535 A CN202110748535 A CN 202110748535A CN 113235750 A CN113235750 A CN 113235750A
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- rubber sleeve
- noise reduction
- metal framework
- reduction device
- piston rod
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- 230000009467 reduction Effects 0.000 title claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000002131 composite material Substances 0.000 claims abstract description 34
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 26
- 239000010440 gypsum Substances 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 15
- 238000013016 damping Methods 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009413 insulation Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
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Classifications
-
- 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
-
- 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
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Building Environments (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a floor slab noise reduction device, which comprises a metal framework and a noise reduction device, wherein the metal framework comprises an upper metal framework and a lower metal framework, the noise reduction device is positioned between the upper metal framework and the lower metal framework, the noise reduction device comprises a composite vibrating diaphragm, a first sound absorption layer and a gypsum layer which are sequentially arranged from top to bottom, the noise reduction device also comprises a sound acquisition sensor arranged on the upper surface of the composite vibrating diaphragm, a controller connected with the sound acquisition sensor, and an electric ceramic vibrating piece which is connected with the controller and is attached to the lower surface of the composite vibrating diaphragm. The invention has the advantages of ingenious structural design, obvious noise reduction effect, economy and practicability.
Description
Technical Field
The invention relates to the technical field of building noise reduction equipment, in particular to a floor noise reduction device.
Background
Once a neighbor, particularly an upstairs resident, has a large knocking and rubbing action, vibration and noise generated in an upstairs room are easily transmitted to the downstairs through the wall plate, so that the rest of the downstairs resident is influenced, and serious interference is brought to the life of the neighbor, particularly at night. The existing sound insulation structure for the floor slab is only provided with the laying sound insulation board, but the existing sound insulation board has poor sound insulation and shock insulation effects, can not effectively eliminate most of noise and shock generated upstairs, and still can generate great influence on the rest of downstairs residents.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the floor noise reduction device which is ingenious in structural design, remarkable in noise reduction effect, economical and practical.
In order to achieve the purpose, the invention provides a floor slab noise reduction device which comprises a metal framework and a noise reduction device, wherein the metal framework comprises an upper metal framework and a lower metal framework, the noise reduction device is positioned between the upper metal framework and the lower metal framework, the noise reduction device comprises a composite vibrating diaphragm, a first sound absorption layer and a gypsum layer which are sequentially arranged from top to bottom, the noise reduction device further comprises a sound acquisition sensor arranged on the upper surface of the composite vibrating diaphragm, a controller connected with the sound acquisition sensor, and an electric ceramic vibrating piece which is connected with the controller and is attached to the lower surface of the composite vibrating diaphragm.
Further, the gypsum layer includes first sub-gypsum layer, the sub-gypsum layer of second, the device of making an uproar still includes the second sound absorbing layer of making an uproar falls, first sub-gypsum layer, second sound absorbing layer, lower metal framework and the sub-gypsum layer of second coincide mutually from top to bottom in proper order and set up.
Furthermore, a plurality of protruding structures are arranged on the upper surface of the first sound absorption layer; or the upper surface of the first sound absorption layer is of an uneven structure.
Further, the noise reduction device also comprises a vacuum noise reduction assembly, the vacuum noise reduction assembly comprises a shell, a piston rod, a damping assembly and an air pressure adjusting assembly, and the damping assembly comprises a first rubber sleeve, a second rubber sleeve and a telescopic elastic sleeve; one end of the shell is connected with the upper metal framework, one end of the shell penetrates through the composite vibrating diaphragm and then extends into a position between the composite vibrating diaphragm and the first sound absorption layer, a vacuum cavity is formed in a part, located between the composite vibrating diaphragm and the first sound absorption layer, of the shell, and one end of the piston rod is inserted into the vacuum cavity; a first rubber sleeve and a second rubber sleeve are alternately arranged in the middle of the piston rod, the first rubber sleeve can move up and down relative to the piston rod, the second rubber sleeve is fixed relative to the piston rod, the telescopic elastic sleeve is connected between the first rubber sleeve and the second rubber sleeve, the piston rod is positioned in the telescopic elastic sleeve, and the first rubber sleeve is connected with the shell; the other end of the piston rod penetrates through the first sound absorption layer and is connected with the gypsum layer; the air pressure adjusting assembly is communicated with the vacuum cavity.
Further, the damping assembly further comprises a damping spring sleeved outside the telescopic elastic sleeve, and two ends of the damping spring are connected with the first rubber sleeve and the second rubber sleeve.
The shell comprises a connecting rod, an upper flange plate arranged in the middle of the connecting rod and a frame arranged at the lower end of the connecting rod, the upper end of the connecting rod is connected with the upper metal framework, the upper flange plate is attached to the lower surface of the composite vibrating diaphragm, the frame is positioned between the composite vibrating diaphragm and the first sound absorption layer, and the vacuum cavity is arranged at the lower end of the connecting rod; the other end of the piston rod is provided with a lower flange plate, and the lower flange plate is connected with the gypsum layer; the first rubber sleeve, the second rubber sleeve and the telescopic elastic sleeve are located in the frame, and the first rubber sleeve is connected with the frame.
Furthermore, the piston rod is provided with a middle flange plate and a third rubber sleeve in sequence below the second rubber sleeve, the middle flange plate is connected with the second rubber sleeve, and the middle flange plate and the third rubber sleeve are positioned in the frame.
Furthermore, the quantity of electronic ceramic shaking pieces is a plurality of, and a plurality of electronic ceramic shaking pieces equipartition are located on the compound vibrating diaphragm.
Furthermore, the number of the vacuum noise reduction assemblies is multiple, and the multiple vacuum noise reduction assemblies are uniformly distributed relative to the composite diaphragm.
After the noise generated upstairs is reduced by the noise reducer, the upstairs noise is not transmitted downstairs, so that the noise reduction and sound insulation effects are greatly improved, and downstairs residents are not influenced. The sound collection sensor is used for collecting upstairs noise and transmitting the upstairs noise to the controller, the controller drives the electric ceramic vibrating reed to generate vibration opposite to upstairs sound waves so as to offset the noise, meanwhile, the electric ceramic vibrating reed generates opposite vibration and transmits the vibration to the composite vibrating diaphragm, the whole surface of the composite vibrating diaphragm generates vibration, and the vibration and the noise on the upstairs can be effectively blocked. Furthermore, in the functions of the first sound absorption layer, the second sound absorption layer and the vacuum noise reduction assembly, multistage layer-by-layer combination noise reduction is realized, vibration isolation is realized, the noise reduction effect is quite remarkable, and the method is economical and practical.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is a partial perspective view of fig. 1 taken away.
FIG. 4 is a perspective view of a vacuum noise reduction assembly of the present invention.
Fig. 5 is a perspective view of fig. 4 cut away.
Fig. 6 is an enlarged view of fig. 3 at B.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It is to be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the generic and descriptive sense only and not for purposes of limitation, as the term is used in the generic and descriptive sense, and not for purposes of limitation, unless otherwise specified or implied, and the specific reference to a device or element is intended to be a reference to a particular element, structure, or component. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-5, the noise reduction device for a floor slab provided by this embodiment includes a metal framework and a noise reduction device, where the metal framework includes an upper metal framework 1 and a lower metal framework 6, the noise reduction device is located between the upper metal framework 1 and the lower metal framework 6, the noise reduction device includes a composite diaphragm 2, a first sound absorption layer 4, and a gypsum layer 5, which are sequentially disposed from top to bottom, and the noise reduction device further includes a sound collection sensor 3 disposed on an upper surface of the composite diaphragm 2, a controller (not shown in the drawings) connected to the sound collection sensor 3, and an electric ceramic vibration sheet 8 connected to the controller and attached to a lower surface of the composite diaphragm 2. The number of the sound collection sensors 3 is set according to actual needs, and is specifically limited. Certainly, the noise reduction device further comprises a power supply and a circuit which are connected with the sound collection sensor 3, the controller and the electric ceramic vibration sheet 8, which is the prior art and is not described in detail.
The embodiment is used by being installed on a floor slab, and specifically, the upper metal framework 1 is connected with the floor slab. Noise that upstairs produced falls the back of making an uproar through falling the device of making an uproar, upstairs noise can not transmit to downstairs, has improved greatly and has fallen the noise reduction and give sound insulation the effect for can not influence downstairs resident. When the noise reduction device is used, upstairs noise is collected through the sound collection sensor 3 and is transmitted to the controller, the controller drives the electric ceramic vibrating reed 8 to generate vibration opposite to upstairs sound waves and offset the noise, meanwhile, the electric ceramic vibrating reed 8 generates opposite vibration and transmits the vibration to the composite vibrating diaphragm 2, the whole surface of the composite vibrating diaphragm 2 generates vibration, and the vibration and the noise on the upstairs can be effectively blocked. Further, the first sound absorption layer 4 can further absorb sound and reduce noise, so that the noise reduction effect is further improved. The first sound absorbing layer 4 may be made of sound absorbing glass wool, which is one of the existing sound absorbing materials, and of course, other sound absorbing materials may be used.
In this embodiment, preferably, the upper surface of the first sound absorbing layer 4 is provided with a plurality of protruding structures 40; or the upper surface of the first sound absorption layer 4 is in an uneven structure. The convex structure 40 may be a conical protrusion or a spherical protrusion, which is limited to increase the contact area between the first sound absorbing layer 4 and noise, so as to absorb more noise and improve the noise reduction effect.
Further preferably, gypsum layer 5 includes first sub-gypsum layer 50, second sub-gypsum layer 51, the device of making an uproar still includes second sound-absorbing layer 7, first sub-gypsum layer 50, second sound-absorbing layer 7, lower metal framework 6 and second sub-gypsum layer 51 from top to bottom coincide mutually in proper order and set up. Under the effect of second sound absorbing layer 7, realize further making an uproar falls, so fall the noise level layer upon layer through multistage, the noise reduction effect is showing fairly for the noise that upstairs produced can not transmit downstairs and influence downstairs resident. The second sound absorbing layer 7 may be made of an existing sound absorbing material.
Further preferably, the noise reduction device of this embodiment further comprises a vacuum noise reduction assembly 9, wherein the vacuum noise reduction assembly 9 comprises a housing 90, a piston rod 91, a shock absorption assembly, and an air pressure adjusting assembly (not shown in the figure), and the shock absorption assembly comprises a first rubber sleeve 97, a second rubber sleeve 95, and a telescopic elastic sleeve 96; one end of the shell 90 is connected with the upper metal framework 1, one end of the shell 90 penetrates through the composite diaphragm 2 and then extends into a position between the composite diaphragm 2 and the first sound absorption layer 4, a vacuum cavity 9010 is arranged on the part, located between the composite diaphragm 2 and the first sound absorption layer 4, of the shell 90, and one end of the piston rod 91 is inserted into the vacuum cavity 9010; a first rubber sleeve 97 and a second rubber sleeve 95 are alternately arranged in the middle of the piston rod 91, the first rubber sleeve 97 can move up and down relative to the piston rod 91, the second rubber sleeve 95 is fixed relative to the piston rod 91, the telescopic elastic sleeve 96 is connected between the first rubber sleeve 97 and the second rubber sleeve 95, the piston rod 91 is positioned in the telescopic elastic sleeve 96, and the first rubber sleeve 97 is connected with the shell 90; the other end of the piston rod 91 penetrates through the first sound absorption layer 4 to be connected with the gypsum layer 5; the air pressure adjusting assembly is communicated with the vacuum cavity 9010. Specifically, the other end of the piston rod 91 passes through the first sound absorbing layer 4 and the first gypsum layer 50 in sequence and then is connected with the lower metal framework 6.
This embodiment atmospheric pressure adjusting part includes the air compressor machine, and wherein the air compressor machine passes through the valve and communicates with vacuum chamber 9010, through the switching of adjusting the valve to realize the regulation of vacuum chamber 9010 internal pressure. According to the pressure in the vacuum chamber 9010, different degrees of vibration isolation can be realized, which is set according to actual needs.
The vibration noise generated upstairs in the embodiment is further reduced in noise by the vacuum noise reduction assembly 9, and then the purpose of vibration isolation is achieved. Specifically, the airtight chamber formed by the vacuum chamber 9010 is equivalent to a pneumatic buffer and a pneumatic shock absorber, because of the compressibility of gas, when the vibration generated upstairs is transmitted to the vacuum chamber 9010, the vibration enables the air to be repeatedly compressed and pulled and then transmitted to the lower side, and the air has elasticity, so that the vibration is greatly reduced after being transmitted to the lower side, and the purpose of isolating the vibration is achieved. Further, when casing 90 reciprocated for piston rod 91, first rubber sleeve 97 removed for piston rod 91, flexible elastic sleeve 96 was flexible along with the distance change between first rubber sleeve 97 and the second rubber sleeve 95 simultaneously, first rubber sleeve 97 simultaneously, further play the shock-absorbing purpose of buffering between flexible elastic sleeve 96 and the second rubber sleeve 95, first rubber sleeve 97 simultaneously, flexible elastic sleeve 96 and second rubber sleeve 95 have still guaranteed the function of the gas tightness between piston rod 91 and casing 90, the gas tightness performance is good, there can not be gas leakage, guarantee the ability of the isolation vibrations of the vacuum noise reduction subassembly.
In this embodiment, the damping assembly further preferably comprises a damping spring (not shown) sleeved on the telescopic elastic sleeve 96, and two ends of the damping spring are connected to the first rubber sleeve 97 and the second rubber sleeve 95. The damping spring is stretched and contracted synchronously along with the distance change of the first rubber sleeve 97 and the second rubber sleeve 95, and further has the function of buffering and damping.
In this embodiment, preferably, the housing 90 includes a connecting rod 901, an upper flange 902 disposed in the middle of the connecting rod 901, and a frame 903 disposed at the lower end of the connecting rod 901, the upper end of the connecting rod 901 is connected to the upper metal framework 1, the upper flange 902 is attached to the lower surface of the composite diaphragm 2, so that the connecting rod 901 supports the composite diaphragm 2, the frame 903 is located between the composite diaphragm 2 and the first sound absorbing layer 4, and the vacuum chamber 9010 is disposed at the lower end of the connecting rod 901; the other end of the piston rod 91 is provided with a lower flange 92, the lower flange 92 is connected with the gypsum layer 5, and specifically, the lower flange 92 is connected with the lower metal framework 6; the first rubber sleeve 97, the second rubber sleeve 95 and the flexible elastic sleeve 96 are located in the frame 903, and the first rubber sleeve 97 is connected with the frame 903.
In this embodiment, preferably, the piston rod 91 is provided with an intermediate flange 93 and a third rubber sleeve 94 in sequence below the second rubber sleeve 95, the intermediate flange 93 is connected to the second rubber sleeve 94, and the intermediate flange 93 and the third rubber sleeve 94 are located in the frame 903. The third rubber sleeve 94 has the functions of buffering, shock absorption and axial limiting to a certain extent.
In this embodiment, preferably, the number of the electric ceramic vibration pieces 8 is multiple, and the multiple electric ceramic vibration pieces 8 are uniformly distributed on the composite vibration film 2.
In this embodiment, preferably, the number of the vacuum noise reduction assemblies 9 is multiple, and the multiple vacuum noise reduction assemblies 9 are uniformly distributed with respect to the composite diaphragm 2.
The controller of the embodiment adopts the existing UNO-2171-P12E controller which is subjected to sublimation, and can also adopt a Siemens PLC + S7-200 programmable controller.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a device of making an uproar falls in floor, its characterized in that includes metal framework, falls the device of making an uproar, metal framework includes metal framework and lower metal framework, it is located to fall the device of making an uproar go up between metal framework and the lower metal framework, fall the device of making an uproar including the compound vibrating diaphragm, first sound absorbing layer, the gypsum layer that from top to bottom set gradually, fall the device of making an uproar still including locating the sound acquisition sensor of compound vibrating diaphragm upper surface, with the controller that the sound acquisition sensor is connected, with the controller is connected and laminates the electronic ceramic vibrations piece that compound vibrating diaphragm lower surface set up.
2. A floor noise reduction device according to claim 1, wherein the gypsum layer comprises a first sub-gypsum layer, a second sub-gypsum layer, and the noise reduction device further comprises a second sound absorbing layer, and the first sub-gypsum layer, the second sound absorbing layer, the lower metal skeleton and the second sub-gypsum layer are sequentially arranged from top to bottom in an overlapping manner.
3. The floor slab noise reduction device of claim 1, further comprising a vacuum noise reduction assembly comprising a housing, a piston rod, a damping assembly, an air pressure adjustment assembly, the damping assembly comprising a first rubber sleeve, a second rubber sleeve, a telescoping elastomeric sleeve; one end of the shell is connected with the upper metal framework, one end of the shell penetrates through the composite vibrating diaphragm and then extends into a position between the composite vibrating diaphragm and the first sound absorption layer, a vacuum cavity is formed in a part, located between the composite vibrating diaphragm and the first sound absorption layer, of the shell, and one end of the piston rod is inserted into the vacuum cavity; a first rubber sleeve and a second rubber sleeve are alternately arranged in the middle of the piston rod, the first rubber sleeve can move up and down relative to the piston rod, the second rubber sleeve is fixed relative to the piston rod, the telescopic elastic sleeve is connected between the first rubber sleeve and the second rubber sleeve, the piston rod is positioned in the telescopic elastic sleeve, and the first rubber sleeve is connected with the shell; the other end of the piston rod penetrates through the first sound absorption layer and is connected with the gypsum layer; the air pressure adjusting assembly is communicated with the vacuum cavity.
4. The floor slab noise reduction device of claim 3, wherein the damping assembly further comprises a damping spring sleeved outside the telescopic elastic sleeve, and both ends of the damping spring are connected with the first rubber sleeve and the second rubber sleeve.
5. The floor slab noise reduction device according to claim 3, wherein the housing comprises a connecting rod, an upper flange disposed in the middle of the connecting rod, and a frame disposed at the lower end of the connecting rod, the upper end of the connecting rod is connected to the upper metal framework, the upper flange is attached to the lower surface of the composite diaphragm, the frame is disposed between the composite diaphragm and the first sound absorbing layer, and the vacuum chamber is disposed at the lower end of the connecting rod; the other end of the piston rod is provided with a lower flange plate, and the lower flange plate is connected with the gypsum layer; the first rubber sleeve, the second rubber sleeve and the telescopic elastic sleeve are located in the frame, and the first rubber sleeve is connected with the frame.
6. A floor noise reduction device according to claim 5, wherein the piston rod is provided with an intermediate flange and a third rubber sleeve in sequence below the second rubber sleeve, the intermediate flange is connected with the second rubber sleeve, and the intermediate flange and the third rubber sleeve are located in the frame.
7. The floor noise reduction device of claim 1, wherein the number of the electric ceramic vibrating pieces is multiple, and the multiple electric ceramic vibrating pieces are uniformly distributed on the composite vibrating membrane.
8. A floor slab noise reduction device according to claim 1, wherein the number of vacuum noise reduction assemblies is plural, and plural vacuum noise reduction assemblies are uniformly arranged with respect to the composite diaphragm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020106541069 | 2020-07-08 | ||
| CN202010654106.9A CN111764523A (en) | 2020-07-08 | 2020-07-08 | Anti-earthquake building device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113235750A true CN113235750A (en) | 2021-08-10 |
| CN113235750B CN113235750B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010654106.9A Withdrawn CN111764523A (en) | 2020-07-08 | 2020-07-08 | Anti-earthquake building device |
| CN202110748535.7A Active CN113235750B (en) | 2020-07-08 | 2021-07-01 | Floor noise reduction device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010654106.9A Withdrawn CN111764523A (en) | 2020-07-08 | 2020-07-08 | Anti-earthquake building device |
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| CN (2) | CN111764523A (en) |
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2020
- 2020-07-08 CN CN202010654106.9A patent/CN111764523A/en not_active Withdrawn
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2021
- 2021-07-01 CN CN202110748535.7A patent/CN113235750B/en active Active
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| CN209891648U (en) * | 2019-04-02 | 2020-01-03 | 成都恒宁环保工程有限公司 | Building structure for sound insulation and noise reduction between floors |
| CN210798032U (en) * | 2019-09-18 | 2020-06-19 | 广东世城建筑装饰工程有限公司 | Sound-insulation noise-reduction ceiling structure |
| CN110751936A (en) * | 2019-10-14 | 2020-02-04 | 深圳市维业装饰集团股份有限公司 | Intelligent noise reduction ceiling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111764523A (en) | 2020-10-13 |
| CN113235750B (en) | 2023-06-30 |
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