CN213339660U - Sound-absorbing and noise-reducing module - Google Patents
Sound-absorbing and noise-reducing module Download PDFInfo
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- CN213339660U CN213339660U CN202022164032.9U CN202022164032U CN213339660U CN 213339660 U CN213339660 U CN 213339660U CN 202022164032 U CN202022164032 U CN 202022164032U CN 213339660 U CN213339660 U CN 213339660U
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Abstract
A sound absorption and noise reduction module relates to a noise reduction device, and comprises a module main body in the shape of a regular polygon flat box, wherein the upper side surface and the lower side surface of the module main body are respectively provided with a forward sound absorption hole and a reverse sound absorption hole, the forward sound absorption holes and the reverse sound absorption holes are arranged on the module main body in a staggered manner, the inner side wall of the module main body at each forward sound absorption hole is provided with a forward noise reduction cylinder communicated with the forward sound absorption hole and the inside of the module main body, and the inner side wall of the module main body at each reverse sound absorption hole is provided with a reverse noise reduction cylinder communicated with the reverse sound absorption hole and the inside of; every limit side is equipped with at least one cover barrel-shaped male joint and one and cover barrel-shaped male joint complex female socket hole on the limit side all around of module main part. The utility model discloses simple structure, low cost, noise reduction effect is good, and the equipment is simple and easy, can be fast in the installation of the space of making an uproar in wheel hub mill workshop and other needs.
Description
Technical Field
The invention relates to a noise reduction device, in particular to a sound absorption and noise reduction module which has the advantages of simple structure, low cost, good noise reduction effect and simple and easy assembly and can be quickly installed in wheel hub factory workshops and other noise reduction spaces.
Background
Along with the development and progress of the society, the requirements of people on the living quality are higher and higher, the requirements on the noise of the working environment are also higher and higher, the noise greatly affects the physical and mental health of workers, and therefore the noise pollution of each factory workshop to the working place is more important. At present, the mainstream means for reducing noise pollution in factory workshops is to wear sound-insulation earplugs by workers, the earplugs are easy to cause discomfort of the workers, diseases such as otitis media and the like are easy to cause when the earplugs are worn for a long time, the noise pollution is serious or the communication of the workers is blocked by wearing the earplugs, danger is easy to cause, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides the sound-absorbing and noise-reducing module which is simple in structure, low in cost, good in noise-reducing effect, easy to assemble and capable of being quickly installed in wheel hub factory workshops and other noise-reducing spaces.
The technical scheme adopted by the invention for solving the defects of the prior art is as follows:
a sound absorption and noise reduction module is characterized by comprising a module main body in the shape of a regular polygon flat box, wherein the upper side surface and the lower side surface of the module main body are respectively provided with a forward sound absorption hole and a reverse sound absorption hole, the forward sound absorption holes and the reverse sound absorption holes are arranged on the module main body in a staggered manner, the inner side wall of the module main body at each forward sound absorption hole is provided with a forward noise reduction cylinder communicated with the forward sound absorption hole and the inside of the module main body, and the inner side wall of the module main body at each reverse sound absorption hole is provided with a reverse noise reduction cylinder communicated with the reverse sound absorption hole and the inside of the module main body; every limit side is equipped with at least one cover barrel-shaped male joint and one and cover barrel-shaped male joint complex female socket hole on the limit side all around of module main part.
The module main body comprises an upper cover body and a lower cover body, wherein the upper cover body comprises an upper side plate and side plates arranged on the periphery of the upper side plate, the positive sound absorption hole is arranged on the upper side plate, a sleeve-shaped male joint and a semicircular inserting groove opening are arranged on the side plate of each side on the periphery of the upper side plate, one half of the sleeve-shaped male joint is positioned in the side plate, and the other half of the sleeve-shaped male joint protrudes out of the side plate; the lower cover body comprises a lower side plate and side plates arranged on the periphery of the lower side plate, the reverse sound absorption holes are formed in the lower side plate, and a semicircular embedding notch matched with a sleeve-shaped male connector on the upper side plate and a semicircular inserting notch matched with a semicircular inserting notch on the upper side plate are formed in each side plate on the periphery of the lower side plate. Go up lid and lower lid lock back, go up half embedding semi-circular embedded notch mouths of cover form male joint on the curb plate, go up semi-circular grafting notch on the curb plate and the female grafting hole of constituteing of semi-circular grafting notch on the curb plate. The structure is simple, and the processing and the manufacturing are convenient.
The length of the positive noise reduction cylinder and the length of the negative noise reduction cylinder are half of the thickness of the inner cavity of the module main body. Noise is primarily reduced by the positive noise reduction cylinder and the negative noise reduction cylinder and then enters the module main body to be diffused, and the noise is further reduced by transmission, reflection and interference between the different positive noise reduction cylinders and the different negative noise reduction cylinders.
The forward sound absorption holes and the reverse sound absorption holes are in a horn shape which is directly and gradually reduced from outside to inside. The sound absorption area is increased, the sound waves are reflected and reduced in noise at the outer side of the sound absorption hole, and the noise reduction effect is enhanced.
The module body of the invention is in a square flat box shape. The processing and the assembly are convenient and fast.
The diameters of the forward sound absorption holes and the reverse sound absorption holes are 0.1-3mm, preferably 0.5-2 mm, the sound absorption and noise reduction effects are good, and the manufacturing cost is low.
When the sound-absorbing and noise-reducing device is used, a plurality of sound-absorbing and noise-reducing modules are combined into a whole according to the specific situation of the position of the sound-absorbing and noise-reducing device installed in a factory workshop. It is usually mounted on walls, ceilings, side walls for fixing large equipment, and also on a floor. The sleeve-shaped male connectors on the side faces of the adjacent edges of the two adjacent sound-absorbing and noise-reducing modules are matched and spliced with the female splicing holes, so that a sound-absorbing and noise-reducing device with a proper size can be formed at will according to the installation area, the installation is simple and convenient, any position suitable for installation can be installed in a factory workshop, and the application range is wide. When noise exists in a workshop, the noise enters from the forward sound absorption hole and the reverse sound absorption hole and then passes through the forward noise reduction cylinder and the reverse noise reduction cylinder to be subjected to preliminary sound absorption and noise reduction, sound waves are diffusely reflected and mutually offset and attenuated in the module main body, and then the noise is transmitted out after the sound absorption and noise reduction of the forward noise reduction cylinder and the reverse noise reduction cylinder. The setting of cover barrel-shaped male joint and female plug-in connection hole more does benefit to the mutual propagation of sound wave in the different module main parts and falls and make an uproar. The invention has the advantages of simple structure, low cost, good noise reduction effect, simple and easy assembly, quick installation in wheel hub factories and workshops and other spaces needing noise reduction, and the like.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the outer side surface of the upper cover body in the present invention.
Fig. 3 is a schematic perspective view of the inner side surface of the upper cover body in the present invention.
Fig. 4 is a perspective view of the outer side of the lower cover of the present invention.
Fig. 5 is a perspective view of the inner side surface of the lower cover body according to the present invention.
Detailed Description
The sound-absorbing and noise-reducing module shown in fig. 1-5 comprises a module main body in the shape of a regular polygonal flat box, wherein the upper side surface and the lower side surface of the module main body are respectively provided with a forward sound-absorbing hole 1 and a reverse sound-absorbing hole 8, the forward sound-absorbing hole 1 and the reverse sound-absorbing hole 8 are arranged on the module main body in a staggered manner (not opposite to each other), the inner side wall of the module main body at the position of each forward sound-absorbing hole 1 is provided with a forward noise-reducing cylinder 7 communicated with the forward sound-absorbing hole 1 and the inside of the module main body, the inner side wall of the module main body at the position of each reverse sound-absorbing hole 8 is provided with a reverse noise-reducing cylinder 11 communicated with the reverse sound-absorbing hole 8 and the inside of the module main body, the forward noise-reducing cylinder 7 and the reverse noise-reducing; the length of the positive noise reduction cylinder 7 and the length of the reverse noise reduction cylinder 11 are half of the thickness of the inner cavity of the module body, and the length of the positive noise reduction cylinder 7 and the length of the reverse noise reduction cylinder 11 are half of the distance between the inner walls of the upper side face and the lower side face. Noise is primarily reduced by the positive noise reduction cylinder and the negative noise reduction cylinder and then enters the module main body to be diffused, and the noise is further reduced by transmission, reflection and interference between the different positive noise reduction cylinders and the different negative noise reduction cylinders. Every limit side 5 is equipped with at least one inside and outside cover barrel-shaped male joint 3 and one with cover barrel-shaped male joint complex female socket hole 4 of intercommunication module main part on module main part limit side 5 all around. The module main body in the embodiment is in a regular quadrilateral flat box shape, namely, a flat square box shape, and comprises an upper cover body and a lower cover body, wherein the upper cover body comprises an upper side plate 2 and side plates arranged on the periphery of the upper side plate, the positive sound absorption holes 1 are uniformly distributed on the upper side plate 2, a sleeve-shaped male joint 3 and a semicircular inserting groove opening 6 with an open lower side are arranged on the side plate of each side on the periphery of the upper side plate 2, one half of the sleeve-shaped male joint 3 is positioned in the side plate, and the other half protrudes out of the lower side of the side plate; the lower cover body comprises a lower side plate 9 and side plates arranged on the periphery of the lower side plate, wherein the reverse sound absorption holes 8 are uniformly distributed on the lower side plate 9, and a semicircular embedding notch 10 matched with the sleeve-shaped male connector 3 on the upper side plate and a semicircular inserting notch matched with the semicircular inserting notch 6 on the upper side plate are formed in the side plate on each of the periphery of the lower side plate. After the upper cover body and the lower cover body are buckled, half of the sleeve-shaped male joint 3 on the upper side plate is embedded into the semicircular embedding notch 10, and the semicircular inserting notch 6 on the upper side plate and the semicircular inserting notch on the lower side plate form a female inserting hole 4; the structure is simple, the processing and the manufacturing are convenient, and the assembly is convenient and fast.
The invention is further improved, and the forward sound absorption hole and the reverse sound absorption hole are in a horn shape which is directly and gradually reduced from outside to inside. The sound absorption area is increased, the sound waves are reflected and reduced in noise at the outer side of the sound absorption hole, and the noise reduction effect is enhanced. The diameters of the forward sound absorption holes and the reverse sound absorption holes are 0.1-3mm, preferably 0.5-2 mm, the sound absorption and noise reduction effects are good, and the manufacturing cost is low.
When the sound-absorbing and noise-reducing device is used, a plurality of sound-absorbing and noise-reducing modules are combined into a whole according to the specific situation of the position of the sound-absorbing and noise-reducing device installed in a factory workshop. It is usually mounted on walls, ceilings, side walls for fixing large equipment, and also on a floor. The sleeve-shaped male connectors on the side faces of the adjacent edges of the two adjacent sound-absorbing and noise-reducing modules are matched and spliced with the female splicing holes, so that a sound-absorbing and noise-reducing device with a proper size can be formed at will according to the installation area, the installation is simple and convenient, any position suitable for installation can be installed in a factory workshop, and the application range is wide. When noise exists in a workshop, the noise enters from the forward sound absorption hole and the reverse sound absorption hole and then passes through the forward noise reduction cylinder and the reverse noise reduction cylinder to be subjected to preliminary sound absorption and noise reduction, sound waves are diffusely reflected and mutually offset and attenuated in the module main body, and then the noise is transmitted out after the sound absorption and noise reduction of the forward noise reduction cylinder and the reverse noise reduction cylinder. The setting of cover barrel-shaped male joint and female plug-in connection hole more does benefit to the mutual propagation of sound wave in the different module main parts and falls and make an uproar. The invention has the advantages of simple structure, low cost, good noise reduction effect, simple and easy assembly, quick installation in wheel hub factories and workshops and other spaces needing noise reduction, and the like. The invention is suitable for being arranged on the inner wall of a machine tool, reduces the noise transmission and reduces the working noise; the device is also suitable for being arranged on the peripheral surface of a casting machine table, and can effectively reduce the noise of the cold and accurate airflow of the machine table; the sound absorption type sound absorption device is also suitable for being arranged on a wall of a laboratory needing sound insulation, and can absorb sound and reduce sound reflection.
Claims (6)
1. A sound absorption and noise reduction module is characterized by comprising a module main body in the shape of a regular polygon flat box, wherein the upper side surface and the lower side surface of the module main body are respectively provided with a forward sound absorption hole and a reverse sound absorption hole, the forward sound absorption holes and the reverse sound absorption holes are arranged on the module main body in a staggered manner, the inner side wall of the module main body at each forward sound absorption hole is provided with a forward noise reduction cylinder communicated with the forward sound absorption hole and the inside of the module main body, and the inner side wall of the module main body at each reverse sound absorption hole is provided with a reverse noise reduction cylinder communicated with the reverse sound absorption hole and the inside of the module main body; every limit side is equipped with at least one cover barrel-shaped male joint and one and cover barrel-shaped male joint complex female socket hole on the limit side all around of module main part.
2. The module of claim 1, wherein the module body comprises an upper cover and a lower cover, the upper cover comprises an upper side plate and a side plate disposed around the upper side plate, the positive sound absorption hole is disposed on the upper side plate, the side plate on each side of the upper side plate is provided with a sleeve-shaped male connector and a semicircular insertion slot, one half of the sleeve-shaped male connector is located in the side plate, and the other half protrudes out of the side plate; the lower cover body comprises a lower side plate and side plates arranged on the periphery of the lower side plate, the reverse sound absorption holes are formed in the lower side plate, and a semicircular embedding notch matched with a sleeve-shaped male connector on the upper side plate and a semicircular inserting notch matched with a semicircular inserting notch on the upper side plate are formed in each side plate on the periphery of the lower side plate.
3. The module of claim 1 wherein the length of the positive and negative noise dampers is half the thickness of the internal cavity of the module body.
4. The module of claim 1, wherein the forward and reverse sound-absorbing holes are in the shape of a trumpet that is gradually reduced from outside to inside.
5. The module of claim 1, wherein the module body has a square flat box shape.
6. The module of claim 1, wherein the diameter of the forward and reverse sound absorbing holes is 0.1-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022164032.9U CN213339660U (en) | 2020-09-28 | 2020-09-28 | Sound-absorbing and noise-reducing module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022164032.9U CN213339660U (en) | 2020-09-28 | 2020-09-28 | Sound-absorbing and noise-reducing module |
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| CN213339660U true CN213339660U (en) | 2021-06-01 |
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| CN202022164032.9U Active CN213339660U (en) | 2020-09-28 | 2020-09-28 | Sound-absorbing and noise-reducing module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574938A (en) * | 2017-10-25 | 2018-01-12 | 湖州美诺玻璃有限公司 | A kind of plug |
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2020
- 2020-09-28 CN CN202022164032.9U patent/CN213339660U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574938A (en) * | 2017-10-25 | 2018-01-12 | 湖州美诺玻璃有限公司 | A kind of plug |
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