CN109914630B - Composite sealing type stainless steel plate - Google Patents
Composite sealing type stainless steel plate Download PDFInfo
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- CN109914630B CN109914630B CN201910220896.7A CN201910220896A CN109914630B CN 109914630 B CN109914630 B CN 109914630B CN 201910220896 A CN201910220896 A CN 201910220896A CN 109914630 B CN109914630 B CN 109914630B
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Abstract
The invention belongs to the technical field of building materials, and particularly relates to a composite sealing type stainless steel plate; the sound absorption structure comprises a steel plate body, wherein the steel plate body consists of a plurality of regular hexagonal prisms, a recess is formed in the surface of each regular hexagonal prism, the center of the recess is located on the central axis of each regular hexagonal prism, a sealing plate is fixedly connected to the rear side face of each regular hexagonal prism, two supporting plates are fixedly connected to the front side face of the sealing plate, a sound absorption film is arranged between the two supporting plates, clamping plates are arranged on two sides of each sound absorption film, one face, close to the supporting plates, of each clamping plate is fixedly connected with a connecting plate, the connecting plates are arranged into two sections and connected through torsional springs, and clamping grooves are formed in the positions; according to the invention, the recess and the sound absorption film are arranged, the recess is formed in the surface of the steel plate body and is used for reflecting sound waves, then the sound absorption film is vibrated by the reflected sound waves, the energy in the sound waves is weakened, and the influence of sound reflection on the interior of a building is reduced.
Description
Technical Field
The invention belongs to the technical field of building materials, and particularly relates to a composite sealing type stainless steel plate.
Background
The stainless steel plate has smooth surface, high plasticity, toughness and mechanical strength, and high resistance to corrosion of acid, alkali gas, solution and other medium. It is an alloy steel which is not easy to rust, but is not absolutely rustless. Stainless steel sheets are steel sheets resistant to corrosion by weak media such as air, steam, and water, and acid-resistant steel sheets are steel sheets resistant to corrosion by chemically aggressive media such as acids, alkalis, and salts. Generally, the stainless steel sheets are classified into martensitic stainless steel sheets, ferritic stainless steel sheets, austenitic stainless steel sheets, duplex stainless steel sheets, precipitation hardening stainless steel sheets, and the like, or into chromium stainless steel sheets and nickel stainless steel sheets. The heat exchanger of pulp and paper making equipment, mechanical equipment, dyeing equipment, film developing equipment, pipelines, exterior materials of buildings in coastal areas and the like.
Because the stainless steel has good strength and sound insulation effect, the stainless steel is generally used as a building material in places with high confidentiality, but because sound has the characteristic of emission, when the sound is transmitted to the surface of the stainless steel, the sound is reflected back through the stainless steel, so that the sound in the places is loud.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a composite sealing type stainless steel plate, which is mainly used for solving the problems in the background art by forming a recess on the surface of a steel plate body for reflecting sound waves, vibrating a sound absorption film through the reflected sound waves and weakening the energy in the sound waves.
In order to achieve the purpose, the invention provides the following technical scheme: the composite sealed stainless steel plate comprises a steel plate body, wherein the steel plate body consists of a plurality of regular hexagonal prisms, a depression is formed in the surface of each regular hexagonal prism, the spherical center of the depression is located on the central axis of each regular hexagonal prism, a sealing plate is fixedly connected to the rear side face of each regular hexagonal prism, two supporting plates are fixedly connected to the front side face of the sealing plate, a sound absorption membrane is arranged between the two supporting plates, clamping plates are arranged on two sides of each sound absorption membrane, a connecting plate is fixedly connected to one side, close to the corresponding supporting plate, of each clamping plate, a clamping groove is formed in the corresponding supporting plate, a spring is arranged in each clamping groove, one end of each spring is fixedly connected with the corresponding supporting plate; when the sound absorption structure works, the composite steel plate is used as a material of a sound insulation building, when sound is transmitted, the sound is firstly reflected through the smooth surface of the recess formed in the steel plate body, the reflected sound is gathered at the position of the spherical center of the recess, the sound wave vibrates the sound absorption membrane, the sound absorption membrane is deformed and then restored, the energy of the sound is consumed, the sound transmission is favorably reduced, the sound absorption effect is improved, when the sound is larger, the sound absorption membrane becomes convex to the limit, the sound absorption membrane drives the connecting plate, the connecting plate extrudes the spring, the sound absorption membrane moves backwards farther, the sound continuously moves to the surface of the sound absorption membrane after passing through the position of the spherical center of the recess, the sound absorption membrane occupies a larger area, the area for receiving the sound by the sound absorption membrane is larger, the sound absorption effect on the sound is better when the sound simultaneously reaches the sound absorption membrane, the sound is prevented from gathering at the same point and cannot absorb the sound to a greater degree, set up a sunken back from the steel sheet body surface simultaneously, can reduce the use of stainless steel, when the one side extrusion steel sheet body of keeping away from the shrouding simultaneously, the steel sheet body can be followed sunken middle part and unloaded the power to both sides, has strengthened the toughness of steel sheet body.
Preferably, the surface of the sound absorption film is provided with a plurality of first wedge grooves, the auxiliary plate is placed in the first wedge grooves, the sound absorption film close to the middle part of the auxiliary plate is provided with a second wedge groove, and the end part of the second wedge groove is provided with two barbs; first wedge groove can become when protruding inhaling the sound membrane, second wedge groove contained angle diminishes, make the vibrations that inhale the sound membrane can be easier, when the sound wave gets into first wedge inslot, carry out multiple reflection by the subplate, can be in the more of a specified duration that first wedge inslot propagated, better shake inhaling the sound membrane and carry out the loss to the energy of sound wave, and partly sound wave gets into in the second wedge groove, when second wedge groove contained angle diminishes, seal the second wedge groove after two barb contacts, make partly sound get back to the barb surface once more, absorb partly sound, through the cooperation of a plurality of aspects, the energy of the weakening sound wave that can be better.
Preferably, one side of each barb close to the first wedge groove is provided with a notch, one barb surface of each barb in each second wedge groove is fixedly connected with an insert, and the other barb surface is provided with a slot matched with the insert; when two barbs become little and when contacting each other because sound absorbing membrane warp second wedge groove contained angle, plug-in components can insert the slot, speed when having delayed two barb separation, better messenger's sound wave weakens the energy of self in the second wedge groove, and when barb deflection was big simultaneously, the opening can make better deformation of barb and be unlikely to damage.
Preferably, a plurality of bulges are arranged in the clamping groove, the bulges are arranged in a hollow manner and are positioned on the two supporting plates in a staggered manner, and the wall thickness of each bulge is provided with a gas blowing hole; when sound is large, the sound absorption film is pushed, the sound absorption film drives the connecting plate to extrude the spring to move, firstly, one end of the supporting plate extrudes the protrusion due to the fact that the end of the supporting plate is blocked by the protrusion, the sound absorption film swings when moving, meanwhile, after the extrusion protrusion crosses the protrusion, air is blown out from the air blowing hole and blows the air to the surface of the sound absorption film, the air finally flows to the plug-in unit from the first wedge groove, the speed of the plug-in unit moving out of the slot is reduced, the weakening effect of sound waves is further enhanced, meanwhile, the protrusions on the two supporting plates are arranged in a staggered mode, the relative sealing plates can tilt back and forth in the moving process of the sound absorption film, more sound waves enter the first wedge groove, and the absorption of the sound waves is.
Preferably, the rear side surface of the sound absorption film is provided with a plurality of bonding strips, the surfaces of the bonding strips are communicated with one end of a connecting pipe, and the other end of the connecting pipe is arranged in the bulge; the bonding strip can play the pulling effect to the sound-absorbing membrane when the sound-absorbing membrane becomes protruding, and the sound-absorbing membrane is pressed the gas in the space that the bonding strip encloses with it in protruding after warping simultaneously, makes and stores more gas in the arch, finally makes the arch blow the time on barb surface lengthen, has further delayed the efficiency that the plug-in components shifted out from the slot.
Preferably, the diameter of one end, close to the bulge, of the connecting pipe is small, and the middle part of the connecting pipe is provided with an annular air bag; the gas of extruding from bonding strip department is at first preserved through the inflation of cyclic annular gasbag, when connecting plate one end was seted up the extrusion arch, the gas hole was plugged up to the connecting plate, gas in the arch can not come out, cross protruding back when the connecting plate tip, when protruding extrusion deformation, gas in the cyclic annular gasbag and the gas in the arch blow off from the gas hole under the effect of cyclic annular gasbag restoring force, the effect of air current has been increaseed, the efficiency that plug-in components shifted out from the slot has further been delayed, the absorption of sound wave has been guaranteed.
The invention has the technical effects and advantages that:
1. the invention provides a composite sealed stainless steel plate, through arranging a recess and a sound absorption film, firstly, sound is reflected through the smooth surface of the recess arranged on the steel plate body, the reflected sound is gathered at the position of the spherical center of the recess, the sound wave generates vibration to the sound absorption film, the sound absorption film is deformed and then restored, the energy of the sound is consumed, the transmission of the sound is reduced, the sound absorption effect is improved, when the sound is larger, the sound absorption film becomes convex to the limit, at the moment, the sound absorption film drives a connecting plate, the connecting plate extrudes a spring, the sound absorption film moves backwards farther, the sound continues to move to the surface of the sound absorption film after passing through the position of the spherical center of the recess, the sound absorption film occupies a larger area, the area for receiving the sound is larger, the sound is prevented from gathering to the same point and can not absorb the sound to a greater extent, and simultaneously, a recess is arranged on the surface of the steel plate body, can reduce stainless steel's use, when the one side extrusion steel sheet body of keeping away from the shrouding simultaneously, the steel sheet body can be followed sunken middle part and unloaded the power to both sides, has strengthened steel sheet body's toughness.
2. The combined type sealed stainless steel plate provided by the invention is provided with the first wedge groove and the second wedge groove, when the sound absorption film becomes convex, the included angle of the second wedge groove becomes small, so that the sound absorption film can vibrate more easily, meanwhile, when sound waves enter the first wedge groove, the sound waves are reflected by the auxiliary plate for multiple times, the sound waves can be transmitted in the sound absorption film for a longer time, the energy of the sound waves is better lost, part of the sound waves enter the second wedge groove, when the included angle of the second wedge groove becomes small, the second wedge groove is sealed after the two barbs are contacted, so that the sound is stored in the second wedge groove for a longer time, the self energy is consumed due to longer vibration of the sound absorption film, and the energy of the sound waves can be better weakened through the matching of multiple aspects.
3. According to the composite sealing type stainless steel plate provided by the invention, by arranging the plug-in piece and the slot, when the two barbs are in mutual contact, the plug-in piece can be inserted into the slot, so that the speed of separating the two barbs is delayed, and the energy of sound waves in the second wedge groove is better weakened.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of section B of FIG. 1 in accordance with the present invention;
FIG. 4 is a rear view of the steel plate body of the present invention;
in the figure: the sound absorption type air bag comprises a steel plate body 1, a regular hexagonal prism 101, a recess 102, a sealing plate 2, a supporting plate 3, a sound absorption film 4, a clamping plate 5, a connecting plate 6, a first wedge groove 7, an auxiliary plate 8, a second wedge groove 9, barbs 10, a notch 11, an insertion piece 12, a slot 13, a protrusion 14, an air blowing hole 15, an adhesive strip 16, a connecting pipe 17 and an annular air bag 18.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-4, the composite sealing type stainless steel plate of the invention comprises a steel plate body 1, wherein the steel plate body 1 is composed of a plurality of regular hexagonal prisms 101, a recess 102 is formed in the surface of each regular hexagonal prism 101, the center of the sphere of the recess 102 is located on the central axis of each regular hexagonal prism 101, the rear side of each regular hexagonal prism 101 is fixedly connected with a sealing plate 2, the front side of each sealing plate 2 is fixedly connected with two support plates 3, a sound absorption membrane 4 is arranged between the two support plates 3, clamping plates 5 are arranged on two sides of each sound absorption membrane 4, one side of each clamping plate 5, which is close to each support plate 3, is fixedly connected with a connecting plate 6, a clamping groove is formed in a contact part of each support plate 3 and the connecting plate 6, a spring is arranged in each clamping groove, one end of each; when the composite steel plate is used as a material of a sound insulation building, when sound is transmitted, the sound is firstly reflected by the smooth surface of the recess 102 formed in the steel plate body 1, the reflected sound is gathered at the sphere center position of the recess 102, the sound wave vibrates the sound absorption membrane 4, the sound absorption membrane 4 is deformed and then restored, the energy of the sound is consumed, the transmission of the sound is reduced, the sound absorption effect is improved, when the sound is larger, the sound absorption membrane 4 becomes convex to the limit, the sound absorption membrane 4 drives the connecting plate 6, the connecting plate 6 extrudes the spring, the sound absorption membrane 4 moves backwards farther, the sound continues to move to the surface of the sound absorption membrane 4 after passing through the sphere center position of the recess 102, the sound occupies a larger area, the sound receiving area of the sound absorption membrane 4 is larger, the sound absorption effect is better when the sound reaches the sound absorption membrane 4 at the same time, the sound is prevented from gathering to the same point and cannot absorb the sound to a greater extent, after seting up a sunken 102 from steel sheet body 1 surface simultaneously, can reduce the use of stainless steel, when extruding steel sheet body 1 from the one side of keeping away from shrouding 2 simultaneously, steel sheet body 1 can be followed sunken 102 middle part and to both sides power of unloading, has strengthened steel sheet body 1's toughness.
The surface of the sound absorption film 4 is provided with a plurality of first wedge grooves 7, the auxiliary plate 8 is placed in each first wedge groove 7, the sound absorption film 4 close to the middle part of each auxiliary plate 8 is provided with a second wedge groove 9, and the end part of each second wedge groove 9 is provided with two barbs 10; first wedge groove 7 can become protruding when inhaling sound membrane 4, second wedge groove 9 contained angle diminishes, make the vibrations that inhale sound membrane 4 can be easier, when the sound wave gets into first wedge groove 7 simultaneously, carry out multiple reflection by subplate 8, can be in the more of a specified duration of first wedge groove 7 internal propagation, better shake and carry out the loss to the energy of sound wave to inhaling sound membrane 4, and partly sound wave gets into in second wedge groove 9, when second wedge groove 9 contained angle diminishes, seal second wedge groove 9 after two barbs 10 contact, make partly sound get back to barb 10 surface once more, absorb partly sound, through the cooperation of multiple aspect, the energy of weakening the sound wave that can be better.
One side of each barb 10 close to the first wedge groove 7 is provided with a notch 11, the surface of one barb 10 of the two barbs 10 in each second wedge groove 9 is fixedly connected with an insert 12, and the surface of the other barb 10 is provided with a slot 13 matched with the insert 12; when two barbs 10 contact each other because the sound absorbing film 4 deforms and the included angle of the second wedge groove 9 becomes smaller, the plug-in piece 12 can be inserted into the slot 13, the speed of the two barbs 10 during separation is delayed, sound waves weaken the energy of the sound waves in the second wedge groove 9 better, and meanwhile, when the deformation of the barbs 10 is large, the notch 11 can enable the barbs 10 to deform better and cannot be damaged.
A plurality of bulges 14 are arranged in the clamping grooves, the bulges 14 are hollow and are arranged in a staggered manner on the two supporting plates 3, and the wall thickness of each bulge 14 is provided with a gas blowing hole 15; when the sound is loud, the sound absorption film 4 is pushed, the sound absorption film 4 drives the connecting plate 6 to extrude the spring to move, firstly, one end of the support plate 3 extrudes the protrusion 14 due to the blocking of the protrusion 14, so that the sound absorption film 4 swings during moving, meanwhile, after the extrusion protrusion 14 passes the protrusion 14, air is blown out from the air blowing hole 15 and finally flows to the plug-in 12 from the first wedge groove 7 after being blown to the surface of the sound absorption film 4, the speed of moving the plug-in 12 out of the slot 13 is reduced, the weakening effect of sound waves is further enhanced, meanwhile, the protrusions 14 on the two support plates 3 are arranged in a staggered mode, the sound absorption film 4 can tilt back and forth relative to the sealing plate 2 in the moving process, more sound waves enter the first wedge groove 7, and the absorption of the sound waves is enhanced.
A plurality of bonding strips 16 are arranged on the rear side surface of the sound absorption film 4, the surfaces of the bonding strips 16 are communicated with one end of a connecting pipe 17, and the other end of the connecting pipe 17 is arranged in the bulge 14; the adhesive strip 16 can pull the sound absorbing film 4 when the sound absorbing film 4 becomes convex, and meanwhile, after the sound absorbing film 4 deforms, the air in the space surrounded by the adhesive strip 16 is pressed into the protrusions 14, so that more air is stored in the protrusions 14, finally, the time for blowing the protrusions 14 to the surfaces of the barbs 10 is prolonged, and the efficiency of moving the plug-in unit 12 out of the slot 13 is further delayed.
The diameter of one end of the connecting pipe 17 close to the bulge 14 is small, and the middle part of the connecting pipe 17 is provided with an annular air bag 18; the gas extruded from the bonding strip 16 is firstly stored through the expansion of the annular air bag 18, when the extrusion bulge is arranged at one end of the connecting plate 6, the connecting plate plugs the air blowing hole 15, the gas in the bulge 14 cannot come out, after the end part of the connecting plate 6 passes over the bulge 14, the bulge 14 is extruded and deformed, the gas in the annular air bag 18 and the gas in the bulge 14 are blown out from the air blowing hole 15 under the action of the restoring force of the annular air bag 18, the effect of air flow is enhanced, the efficiency of moving the plug-in 12 out of the slot 13 is further delayed, and the absorption of sound waves is ensured.
When the composite steel plate is used as a material of a sound insulation building, when sound is transmitted, the sound is firstly reflected by the smooth surface of the recess 102 formed in the steel plate body 1, the reflected sound is gathered at the sphere center position of the recess 102, the sound wave vibrates the sound absorption membrane 4, the sound absorption membrane 4 is deformed and then restored, the energy of the sound is consumed, the transmission of the sound is reduced, the sound absorption effect is improved, when the sound is larger, the sound absorption membrane 4 becomes convex to the limit, the sound absorption membrane 4 drives the connecting plate 6, the connecting plate 6 extrudes the spring, the sound absorption membrane 4 moves backwards farther, the sound continues to move to the surface of the sound absorption membrane 4 after passing through the sphere center position of the recess 102, the sound occupies a larger area, the sound receiving area of the sound absorption membrane 4 is larger, the sound absorption effect is better when the sound reaches the sound absorption membrane 4 at the same time, the sound is prevented from gathering to the same point and cannot absorb the sound to a greater extent, meanwhile, after the recess 102 is formed in the surface of the steel plate body 1, the use of stainless steel can be reduced, and when the steel plate body 1 is extruded from one surface far away from the sealing plate 2, the steel plate body 1 can release force from the middle of the recess 102 to two sides, so that the toughness of the steel plate body 1 is enhanced, the included angle of the second wedge groove 9 is reduced when the sound absorption film 4 becomes convex, so that the sound absorption film 4 can vibrate more easily, meanwhile, when sound waves enter the first wedge groove 7, the sound waves are reflected by the auxiliary plate 8 for multiple times, the sound waves can be spread in the first wedge groove 7 for a longer time, so that the sound absorption film 4 can vibrate to dissipate the energy of the sound waves, and a part of the sound waves enter the second wedge groove 9, when the included angle of the second wedge groove 9 is reduced, the second wedge groove 9 is sealed after the two barbs 10 are contacted, so that a part of the sound returns to the surface of the barbs 10 again to absorb a part of the sound, through the cooperation of multiple aspects, the energy of sound waves can be better weakened, when two barbs 10 contact with each other due to the fact that the included angle of the sound absorption film 4 deforms the second wedge groove 9 becomes smaller, the plug-in 12 can be inserted into the slot 13, the speed of separating the two barbs 10 is delayed, the energy of the sound waves in the second wedge groove 9 is better weakened, meanwhile, when the deformation amount of the barbs 10 is large, the notches 11 can enable the barbs 10 to deform better without being damaged, when the sound is large, the sound absorption film 4 is pushed, the sound absorption film 4 drives the connecting plate 6 to extrude the spring to move, firstly, one end of the supporting plate 3 extrudes the bulge 14 due to the blockage of the bulge 14, the sound absorption film 4 swings when moving, meanwhile, after the extrusion bulge 14 crosses the bulge 14, air is blown out from the air blowing hole 15 and blows out to the surface of the sound absorption film 4, and finally flows to the plug-in 12 from the first wedge groove 7, the speed of the plug-in 12 moving out of the slot 13 is reduced, the weakening effect of the sound waves is further enhanced, meanwhile, the protrusions 14 on the two support plates 3 are arranged in a staggered mode, the sound absorption film 4 can tilt back and forth relative to the sealing plate 2 in the moving process, more sound waves enter the first wedge grooves 7, the absorption of the sound waves is enhanced, the bonding strip 16 can play a pulling effect on the sound absorption film 4 when the sound absorption film 4 becomes convex, meanwhile, after the sound absorption film 4 deforms, the air in the space surrounded by the bonding strip 16 and the bonding strip 16 is pressed into the protrusions 14, more air is stored in the protrusions 14, the time of blowing the protrusions 14 to the surfaces of the barbs 10 is prolonged, the efficiency of the plug-in 12 moving out of the slot 13 is further delayed, the air extruded from the bonding strip 16 is stored through the expansion of the annular air bag 18, when the extrusion protrusion is arranged at one end of the connecting plate 6, the air blowing holes 15 are blocked, the gas in the bulge 14 can not come out, when the end of the connecting plate 6 passes over the bulge 14 and extrudes and deforms the bulge 14, the gas in the annular air bag 18 and the gas in the bulge 14 are blown out from the gas blowing hole 15 under the action of the restoring force of the annular air bag 18, the effect of gas flow is improved, the efficiency of moving the plug-in 12 out of the slot 13 is further delayed, and the absorption of sound waves is ensured.
The foregoing illustrates and describes the principles, general features, and advantages of the present 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 described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. Combined type canned type stainless steel sheet, including steel sheet body (1), its characterized in that: the steel plate body (1) comprises a plurality of regular hexagonal prisms (101), and is single sunken (102) have been seted up on regular hexagonal prism (101) surface, and the centre of sphere of sunken (102) is on the center axis of regular hexagonal prism (101), regular hexagonal prism (101) trailing flank has linked firmly shrouding (2), shrouding (2) leading flank has linked firmly two backup pads (3), two be provided with between backup pad (3) and inhale sound membrane (4), inhale sound membrane (4) both sides and all be provided with cardboard (5), cardboard (5) are close to the one side of backup pad (3) and have linked firmly connecting plate (6), the draw-in groove has been seted up with the position of connecting plate (6) contact on backup pad (3), and the draw-in groove is inside to be provided with the spring, and spring one end links firmly with backup pad (3), the spring other end links firmly with connecting plate (6).
2. The composite sealed stainless steel plate according to claim 1, wherein: a plurality of first wedge grooves (7) are formed in the surface of the sound absorption film (4), the auxiliary plate (8) is placed in the first wedge grooves (7), the sound absorption film (4) close to the middle of the auxiliary plate (8) is provided with a second wedge groove (9), and the end portion of the second wedge groove (9) is provided with two barbs (10).
3. The composite sealed stainless steel plate according to claim 2, wherein: one side of each barb (10) close to the first wedge groove (7) is provided with a notch (11), one barb (10) of each barb (10) in each second wedge groove (9) is fixedly connected with an insert (12), and the surface of the other barb (10) is provided with a slot (13) matched with the insert (12).
4. The composite sealed stainless steel plate according to claim 3, wherein: a plurality of bulges (14) are arranged in the clamping grooves, the bulges (14) are arranged in a hollow mode and are positioned on the two supporting plates (3) in a staggered mode, and the wall thickness of each bulge (14) is provided with a gas blowing hole (15).
5. The composite sealed stainless steel plate according to claim 4, wherein: the sound absorption film (4) is characterized in that a plurality of bonding strips (16) are arranged on the rear side face of the sound absorption film (4), the surfaces of the bonding strips (16) are communicated with one ends of connecting pipes (17), and the other ends of the connecting pipes (17) are arranged inside the protrusions (14).
6. The composite sealed stainless steel plate according to claim 5, wherein: the diameter of one end of the connecting pipe (17) close to the bulge (14) is small, and the middle part of the connecting pipe (17) is provided with an annular air bag (18).
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| CN201910220896.7A CN109914630B (en) | 2019-03-22 | 2019-03-22 | Composite sealing type stainless steel plate |
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| CN201910220896.7A CN109914630B (en) | 2019-03-22 | 2019-03-22 | Composite sealing type stainless steel plate |
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| CN109914630A CN109914630A (en) | 2019-06-21 |
| CN109914630B true CN109914630B (en) | 2020-12-18 |
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| CN111730931A (en) * | 2020-07-14 | 2020-10-02 | 余兆勇 | Composite sealing type stainless steel plate |
| CN112726859B (en) * | 2020-12-28 | 2023-05-05 | 德州天工装饰工程有限责任公司 | Building noise insulation layer board |
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| CN2628630Y (en) * | 2003-08-27 | 2004-07-28 | 胡晓龙 | Decorative acoustic board |
| JP2005227333A (en) * | 2004-02-10 | 2005-08-25 | Bridgestone Kbg Co Ltd | Composite sound absorbing structure |
| WO2009137466A2 (en) * | 2008-05-05 | 2009-11-12 | 3M Innovative Properties Company | Acoustic composite |
| CN203531166U (en) * | 2013-09-23 | 2014-04-09 | 华中科技大学 | Composite low-frequency sound barrier |
| CN206091026U (en) * | 2016-07-25 | 2017-04-12 | 佛山市蓝姆特家居科技有限公司 | Furred ceiling of utensil sound insulation effect |
| CN206928450U (en) * | 2017-07-01 | 2018-01-26 | 滁州职业技术学院 | A kind of sound insulating sheet material for building |
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