CN210369382U - Sound-absorbing partition plate and sound-absorbing system - Google Patents

Sound-absorbing partition plate and sound-absorbing system Download PDF

Info

Publication number
CN210369382U
CN210369382U CN201921174158.5U CN201921174158U CN210369382U CN 210369382 U CN210369382 U CN 210369382U CN 201921174158 U CN201921174158 U CN 201921174158U CN 210369382 U CN210369382 U CN 210369382U
Authority
CN
China
Prior art keywords
sound
layer
absorbing
protruding
height
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921174158.5U
Other languages
Chinese (zh)
Inventor
余常勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Meisui Industrial Development Co ltd
Original Assignee
Guangdong Meisui Industrial Development Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Meisui Industrial Development Co ltd filed Critical Guangdong Meisui Industrial Development Co ltd
Priority to CN201921174158.5U priority Critical patent/CN210369382U/en
Application granted granted Critical
Publication of CN210369382U publication Critical patent/CN210369382U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Building Environments (AREA)

Abstract

The utility model provides a sound absorption baffle and a sound absorption system, relating to the technical field of sound absorption systems, comprising a base body layer, a first convex layer and a second convex layer which are arranged on the base body layer; the first protruding layer and the second protruding layer are arranged at intervals, the height of the first protruding layer and the height of the second protruding layer are provided with difference values, and the second protruding layer is provided with a sound absorption structure. Because first protruding layer and the interval setting of second protruding layer, and first protruding layer and the unequal height setting of second protruding layer, base member layer, first protruding layer and the whole uneven structure that constitutes of second protruding layer, compare with the abatvoix among the prior art, can show the reflection number of times that increases the sound wave, inhale the energy that the sound structure also can effectively reduce the sound wave, the sound absorbing effect is better.

Description

Sound-absorbing partition plate and sound-absorbing system
Technical Field
The utility model belongs to the technical field of inhale the sound baffle technique and specifically relates to an inhale sound baffle and inhale sound system is related to.
Background
The sound-absorbing partition board (commonly called sound-absorbing board) is an ideal sound-absorbing decorative material. The novel sound-absorbing and decoration board has the advantages of sound absorption, environmental protection, flame retardance, heat insulation, heat preservation, moisture prevention, mildew prevention, easiness in dust removal, easiness in cutting, mosaic, simplicity and convenience in construction, good stability, good impact resistance, good independence, high cost performance and the like, is rich in various colors for selection, and can meet the sound absorption and decoration requirements of different styles and levels.
However, traditional abatvoix generally sets up to a flat board, is provided with on the flat board and inhales the sound structure, inhales the sound structure and sets up to hole or recess more, and dull and stereotyped planar structure is unfavorable for the reflection of sound wave, inhales the sound effect not fully satisfactory.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a inhale sound baffle and inhale sound system to the structure of having alleviated the abatvoix among the prior art is unfavorable for the reflection of sound wave, inhales the relatively poor technical problem of sound effect.
In order to solve the technical problem, the utility model provides a technical scheme lies in:
the sound-absorbing partition board provided by the utility model comprises a base layer, a first protruding layer and a second protruding layer, wherein the first protruding layer and the second protruding layer are arranged on the base layer;
the first protruding layer and the second protruding layer are arranged at intervals, the height of the first protruding layer is different from the height of the second protruding layer, and the second protruding layer is provided with a sound absorbing structure.
Furthermore, the first convex layers and the second convex layers are arranged in a plurality of numbers, and the second convex layers are arranged between any two adjacent first convex layers.
Further, the height of the first bump layer is higher than the height of the second bump layer.
Furthermore, the second protruding layer comprises a plurality of bumps which are sequentially connected end to end.
Further, the sound-absorbing structure comprises a sound-absorbing hole and a first sound-absorbing groove;
and the first sound absorption groove is arranged between any two adjacent convex blocks, and the sound absorption holes are arranged in the first sound absorption groove.
Further, the sound-absorbing structure further comprises a second sound-absorbing groove;
the sound groove is inhaled to the second set up in arbitrary adjacent first protruding layer with between the protruding layer of second, the sound inslot is inhaled to the second also is provided with inhale the sound hole.
The utility model provides a sound absorption system, which comprises a sound absorption clapboard and a suspension mechanism;
the sound-absorbing partition board is connected with the ceiling of the building through the suspension mechanism.
Further, the suspension mechanism comprises a connecting component and a fixed frame;
the fixed frame is internally provided with a plurality of areas for placing the sound-absorbing partition plates, one end of the connecting assembly is connected with the fixed frame, and the other end of the connecting assembly is connected with the ceiling.
Further, the connecting assembly comprises a first connecting piece, a connecting rod and a second connecting piece;
the first connecting piece is fixed on the ceiling, one end of the connecting rod is connected with the first connecting piece, the other end of the connecting rod is movably connected with the second connecting piece so that the height of the second connecting piece relative to the ceiling can be adjusted, and the second connecting piece is connected with the fixed frame body.
Furthermore, the suspension mechanism further comprises a connecting beam fixed on the fixed frame body, and the second connecting piece is connected with the connecting beam.
Technical scheme more than combining, the utility model discloses the beneficial effect who reaches lies in:
the utility model provides a sound-absorbing baffle plate, which comprises a base layer, a first convex layer and a second convex layer, wherein the first convex layer and the second convex layer are arranged on the base layer; the first protruding layer and the second protruding layer are arranged at intervals, the height of the first protruding layer and the height of the second protruding layer are provided with difference values, and the second protruding layer is provided with a sound absorption structure. Because first protruding layer and the interval setting of second protruding layer, and first protruding layer and the unequal height setting of second protruding layer, base member layer, first protruding layer and the whole uneven structure that constitutes of second protruding layer, compare with the abatvoix among the prior art, can show the reflection number of times that increases the sound wave, inhale the energy that the sound structure also can effectively reduce the sound wave, the sound absorbing effect is better.
Drawings
For a clear explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of a sound-absorbing partition board according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a sound-absorbing partition plate according to an embodiment of the present invention at a first viewing angle;
FIG. 3 is an enlarged view of A in FIG. 1;
fig. 4 is a schematic structural view of a sound absorbing system according to an embodiment of the present invention.
Icon: 100-a substrate layer; 200-a first raised layer; 300-a second raised layer; 310-a bump; 400-sound absorbing structure; 410-sound absorbing holes; 420-a first sound absorption groove; 430-a second sound absorbing groove; 500-a suspension mechanism; 510-a connection assembly; 511-a first connector; 512-connecting rod; 513 — a second connection; 520-a fixed frame; 530-connecting beam.
Detailed Description
The technical solution of the present invention will be described in detail and fully with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic view of the overall structure of the sound-absorbing partition panel according to the present embodiment; fig. 2 is a schematic structural view of the sound-absorbing partition plate according to the present embodiment at a first viewing angle, wherein the first viewing angle is viewed from the second sound-absorbing groove 430; FIG. 3 is an enlarged view of A in FIG. 1; fig. 4 is a schematic structural view of the sound absorbing system according to this embodiment.
As shown in fig. 1, the present embodiment provides a sound-absorbing partition panel including a base layer 100 and first and second bump layers 200 and 300 provided on the base layer 100; the first and second bump layers 200 and 300 are spaced apart from each other, a difference is provided between the height of the first bump layer 200 and the height of the second bump layer 300, and the second bump layer 300 is provided with a sound-absorbing structure 400.
Specifically, the base layer 100, the first bump layer 200 and the second bump layer 300 are all made of gypsum, and the base layer 100, the first bump layer 200 and the second bump layer 300 are integrally formed; the arrangement of the first bump layers 200 and the second bump layers 300 on the base layer 100 is various, and preferably, the first bump layers 200 and the second bump layers 300 are arranged at intervals along the length and width directions of the base layer 100; in addition, the height of the first bump layer 200 and the height of the second bump layer 300 are set to be unequal, and in an alternative embodiment of the present embodiment, the height of the first bump layer 200 is higher than the height of the second bump layer 300 or the height of the first bump layer 200 is lower than the height of the second bump layer 300, so that a fall is provided between the heights of the first bump layer 200 and the second bump layer 300, so that the first bump layer 200, the second bump layer 300 and the base layer 100 are arranged in a rugged manner as a whole, so that sound waves acting on the sound-absorbing barrier can be reflected between the first bump layer 200 and the second bump layer 300 multiple times.
In addition, be provided with on the second protruding layer 300 and inhale sound structure 400, foretell inhale sound structure 400 and set up to inhale the sound groove among the prior art or inhale sound hole 410, and the sound wave that acts on second protruding layer 300 can enter into and inhale sound structure 400 in, further improves the sound absorbing effect of the sound baffle that inhales that this embodiment provided.
The sound-absorbing partition board provided by the embodiment comprises a base layer 100, and a first bump layer 200 and a second bump layer 300 which are arranged on the base layer 100; the first and second bump layers 200 and 300 are spaced apart from each other, and a difference is provided between the height of the first bump layer 200 and the height of the second bump layer 300, and the second bump layer 300 is provided with a sound-absorbing structure 400. Because first protruding layer 200 and the setting of second protruding layer 300 interval, and first protruding layer 200 and the unequal height setting of second protruding layer 300, base member layer 100, first protruding layer 200 and the whole uneven structure that constitutes of second protruding layer 300 compare with the abatvoix among the prior art, can show the reflection number of times that increases the sound wave, inhale sound structure 400 and also can effectively reduce the energy of sound wave, the sound absorbing effect is better.
On the basis of the above embodiment, further, the present embodiment provides a sound-absorbing partition plate in which the first protrusion layer 200 and the second protrusion layer 300 are both provided in plurality, and the second protrusion layer 300 is provided between any two adjacent first protrusion layers 200.
Specifically, the first convex layers 200 and the second convex layers 300 are both provided in plural, and there are plural arrangement manners between the first convex layers 200 and the second convex layers 300, preferably, the second convex layers 300 are provided between any two adjacent first convex layers 200, that is, in each row or each column, the first convex layers 200 and the second convex layers 300 are sequentially provided at intervals to sequentially form a circular arrangement manner like the first convex layers 200, the second convex layers 300, the first convex layers 200, and the second convex layers 300.
Further, the height of the first bump layer 200 is higher than that of the second bump layer 300.
Specifically, the first bump layer 200 is provided in plural, and correspondingly, the second bump layer 300 is also provided in plural, the heights of the plural first bump layers 200 are equal, the heights of the plural second bump layers 300 are equal, and the relationship between the heights of the first bump layers 200 and the heights of the second bump layers 300 can be set in the following various ways:
first, the height of the first bump layer 200 is higher than the height of the second bump layer 300.
In a second way, the height of the first bump layer 200 is lower than the height of the second bump layer 300.
Preferably, the sound-absorbing partition panel of the present embodiment provides a sound-absorbing partition panel in which the height of the first protrusion layer 200 is higher than the height of the second protrusion layer 300.
In the sound-absorbing partition board provided by this embodiment, the first protruding layers 200 and the second protruding layers 300 are both provided in a plurality of numbers, the first protruding layers 200 and the second protruding layers 300 are sequentially provided at intervals, and the height of the first protruding layers 200 is higher than that of the second protruding layers 300, so that the heights of the plurality of first protruding layers 200 and the plurality of second protruding layers 300 on the base layer 100 are increased, and the reflection times of sound waves on the sound-absorbing partition board are significantly increased.
On the basis of the above embodiments, further, the second protruding layer 300 in the sound-absorbing partition board provided in this embodiment includes a plurality of bumps 310 connected end to end in sequence.
Specifically, as shown in fig. 2 and fig. 3, the second protrusion layer 300 includes a plurality of bumps 310 connected end to end in sequence, preferably, the second protrusion layer 300 is provided with four bumps 310, the bumps 310 are provided in a rectangular parallelepiped structure, and the four bumps 310 are connected end to end in sequence to form a square arrangement.
Further, the sound-absorbing structure 400 includes sound-absorbing holes 410 and first sound-absorbing grooves 420; a first sound absorption groove 420 is formed between any two adjacent bumps 310, and a sound absorption hole 410 is formed in the first sound absorption groove 420.
Specifically, the first sound absorbing groove 420 is an inverted triangular groove, and the first sound absorbing groove 420 is arranged between any two adjacent bumps 310; the first sound absorbing groove 420 is provided with sound absorbing holes 410, the sound absorbing holes 410 are circular through holes, and the sound absorbing holes 410 are arranged in the first sound absorbing groove 420 in the following manner:
first, the sound absorbing holes 410 are formed in any number, and the sound absorbing holes 410 are sequentially and uniformly spaced along the longitudinal direction of the first sound absorbing groove 420.
In the second mode, two sound absorbing holes 410 are provided, and the two sound absorbing holes 410 are provided at both ends of the first sound absorbing groove 420.
In the third embodiment, three sound absorbing holes 410 are provided, and the sound absorbing holes 410 are provided at both ends of the first sound absorbing groove 420 and at the middle position in the longitudinal direction of the first sound absorbing groove 420.
Preferably, the sound absorbing holes 410 are arranged in the second manner, so that the sound absorbing holes 410 are disposed at four corners of the quadrilateral projection 310, and the first sound absorbing groove 420 communicates the tops of any two adjacent sound absorbing holes 410, so that the sound wave in the first sound absorbing groove 420 can enter the sound absorbing holes 410 again for reflection in the reflection process.
Further, the sound-absorbing structure 400 further includes a second sound-absorbing groove 430; the second sound-absorbing groove 430 is disposed between any adjacent first bump layer 200 and second bump layer 300, and a sound-absorbing hole 410 is also disposed in the second sound-absorbing groove 430.
Specifically, the second sound absorbing groove 430 is disposed between any adjacent first protruding layer 200 and second protruding layer 300, the second sound absorbing groove 430 is also set as an inverted triangular groove, the second sound absorbing groove 430 is also provided with sound absorbing holes 410, and the arrangement form of the sound absorbing holes 410 in the second sound absorbing groove 430 is the same as the arrangement form in the first sound absorbing groove 420.
In the sound-absorbing partition panel of the present embodiment, since the height of the first protrusion layer 200 is higher than the height of the second protrusion layer 300, the depth and width of the inverted triangle of the second sound-absorbing groove 430 are slightly greater than the depth and width of the inverted triangle of the first sound-absorbing groove 420, respectively.
The sound-absorbing partition plate provided by the embodiment, the sound wave acting on the sound-absorbing partition plate is reflected for multiple times between the convex block 310 and the first convex layer 200, because the cross sections of the first sound-absorbing groove 420 and the second sound-absorbing groove 430 are arranged in an inverted triangle, the cross sectional area of the deeper position is relatively smaller, the times of sound wave reflection are more and more, namely, the reflected sound wave energy is smaller and smaller, the sound wave in the first sound-absorbing groove 420 and the second sound-absorbing groove 430 can also enter the sound-absorbing holes 410 at two ends, and the sound-absorbing effect is better.
The present embodiment provides a sound absorbing system including a sound absorbing partition and a suspension mechanism 500; the sound-absorbing partition is connected to the ceiling of the building by a suspension mechanism 500.
Wherein, the suspension mechanism 500 includes a connection component 510 and a fixed frame 520; a plurality of placement areas for placing sound-absorbing partition plates are provided in the fixed frame 520, and one end of the connecting assembly 510 is connected to the fixed frame 520 and the other end is connected to a ceiling.
Specifically, as shown in fig. 4, the fixing frame 520 in the sound absorbing system is an aluminum alloy frame for ceiling suspended ceiling in the prior art, the aluminum alloy frame is divided into a plurality of placing areas for placing sound absorbing partitions, the sound absorbing partitions are overlapped on the fixing frame 520, one end of the connecting assembly 510 is connected with the fixing frame 520, and the other end is connected with a ceiling in a building, so that the sound absorbing partitions are fixed on the lower portion of the ceiling, and the sound absorbing capability of the building wall is improved and a good decorative effect is achieved.
Further, the connecting assembly 510 includes a first connecting member 511, a connecting rod 512 and a second connecting member 513; the first connecting member 511 is fixed to the ceiling, one end of the connecting rod 512 is connected to the first connecting member 511, and the other end is movably connected to the second connecting member 513, so as to adjust the height of the second connecting member 513 relative to the ceiling, and the second connecting member 513 is connected to the fixing frame 520.
Specifically, first connecting piece 511 sets up to expansion bolts, the one end of connecting rod 512 welds on first connecting piece 511, the other end of connecting rod 512 is provided with the external screw thread, be provided with the screw hole with the external screw thread fit of connecting rod 512 one end on the second connecting piece 513, the degree of depth that changes the connecting rod 512 screw in second connecting piece 513 can change the height of second connecting piece 513 for the ceiling, in addition, still the cover is equipped with the nut on the connecting rod 512, the nut can be with the relative position locking between connecting rod 512 and the second connecting piece 513, second connecting piece 513 can weld on fixed frame 520.
Further, the suspension mechanism 500 further includes a connection beam 530 fixed to the fixed frame 520, and the second connection member 513 is connected to the connection beam 530.
Specifically, a plurality of connecting beams 530 are arranged on the fixing frame 520, the connecting beams 530 are made of aluminum alloy, the connecting beams 530 are fixed on one side, close to the ceiling, of the fixing frame 520 through clamps or clamping sleeves, and the second connecting piece 513 is sleeved on the connecting beams 530 to provide tension for suspending the connecting beams 530.
In the sound absorbing system provided by the embodiment, the suspension mechanism 500 fixes the sound absorbing partition plates on the lower part of the ceiling of the building, and the connecting rod 512 in the suspension mechanism 500 is movably connected with the second connecting piece 513, so that the heights of the sound absorbing partition plates from the ceiling can be conveniently adjusted, a plurality of sound absorbing partition plates can be positioned in the same mounting plane, and the sound absorbing system is good in aesthetic property; the sound absorbing partition and the suspension mechanism 500 are combined, so that the sound absorbing system provided by the embodiment can be applied more widely.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. An acoustic baffle, comprising: a base layer (100) and a first bump layer (200) and a second bump layer (300) provided on the base layer (100);
the first protruding layer (200) and the second protruding layer (300) are arranged at intervals, the height of the first protruding layer (200) is different from the height of the second protruding layer (300), and a sound absorption structure (400) is arranged on the second protruding layer (300).
2. The sound-absorbing partition according to claim 1, wherein the first bump layer (200) and the second bump layer (300) are provided in plurality, and the second bump layer (300) is provided between any adjacent two of the first bump layers (200).
3. The sound-absorbing partition of claim 2, wherein the first raised layer (200) has a height greater than the height of the second raised layer (300).
4. The sound-absorbing partition of claim 1, wherein the second raised layer (300) comprises a plurality of lugs (310) connected end to end.
5. The sound-absorbing partition of claim 4, wherein the sound-absorbing structure (400) comprises a sound-absorbing hole (410) and a first sound-absorbing groove (420);
the first sound absorption groove (420) is arranged between any two adjacent bumps (310), and the sound absorption holes (410) are arranged in the first sound absorption groove (420).
6. The sound-absorbing partition of claim 5, wherein the sound-absorbing structure (400) further comprises a second sound-absorbing groove (430);
the second sound absorption groove (430) is arranged between any adjacent first protruding layer (200) and second protruding layer (300), and the sound absorption hole (410) is also arranged in the second sound absorption groove (430).
7. A sound-absorbing system comprising the sound-absorbing partition plate according to any one of claims 1 to 5 and a suspension mechanism (500);
the sound-absorbing partition is connected to the ceiling of the building by the suspension mechanism (500).
8. The sound absorbing system of claim 7, wherein the suspension mechanism (500) comprises a connection assembly (510) and a fixed frame (520);
a plurality of placing areas for placing the sound-absorbing partition plates are arranged in the fixed frame body (520), one end of the connecting assembly (510) is connected with the fixed frame body (520), and the other end of the connecting assembly is connected with the ceiling.
9. The sound absorbing system of claim 8, wherein the connection assembly (510) includes a first connector (511), a link (512), and a second connector (513);
the first connecting piece (511) is fixed on the ceiling, one end of the connecting rod (512) is connected with the first connecting piece (511), the other end of the connecting rod is movably connected with the second connecting piece (513) so as to adjust the height of the second connecting piece (513) relative to the ceiling, and the second connecting piece (513) is connected with the fixed frame body (520).
10. The sound absorbing system of claim 9, wherein the suspension mechanism (500) further comprises a connection beam (530) fixed to the fixed frame (520), and the second connection member (513) is connected to the connection beam (530).
CN201921174158.5U 2019-07-24 2019-07-24 Sound-absorbing partition plate and sound-absorbing system Active CN210369382U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921174158.5U CN210369382U (en) 2019-07-24 2019-07-24 Sound-absorbing partition plate and sound-absorbing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921174158.5U CN210369382U (en) 2019-07-24 2019-07-24 Sound-absorbing partition plate and sound-absorbing system

Publications (1)

Publication Number Publication Date
CN210369382U true CN210369382U (en) 2020-04-21

Family

ID=70246125

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921174158.5U Active CN210369382U (en) 2019-07-24 2019-07-24 Sound-absorbing partition plate and sound-absorbing system

Country Status (1)

Country Link
CN (1) CN210369382U (en)

Similar Documents

Publication Publication Date Title
RU2007101278A (en) SOUND ABSORBING UNIT AND METHOD FOR ITS ASSEMBLY
CN210369382U (en) Sound-absorbing partition plate and sound-absorbing system
CN214617662U (en) Novel practical multilayer crane span structure
JP4991513B2 (en) fence
JP3917840B2 (en) Soundproof auxiliary panel
CN215858393U (en) Adjustable partition mounting structure
KR200283656Y1 (en) Stud in partition wall
KR101257315B1 (en) Structure for mounting of ceiling panel
JP3839273B2 (en) Thermal insulation structure of high rigidity panel
JP4205973B2 (en) Refractory face material mounting structure
CN220451147U (en) Boiler room noise absorption guard plate structure
CN217460351U (en) Diamond-hole type structure sound absorption board and sound barrier
CN211113246U (en) Novel high strength view sound barrier for road
CN221032298U (en) Bridge cut-off aluminium alloy that sound insulation is effectual
CN214117115U (en) Edge sealing structure of indoor wallboard
CN212271277U (en) Aluminum M6 type full-frequency composite space sound absorption plate
JP2001279949A (en) Damping structure
CN214614953U (en) Stone-like aluminum buckle plate
JPH0452323Y2 (en)
CN210911400U (en) Compression-resistant sound-absorbing sandwich composite board
CN217353307U (en) Stamping combined aluminum plate structure with insulation board
CN213980492U (en) Keel filling door
JPS581814Y2 (en) Combined mounting frame for collective indicator light
JP7341757B2 (en) Exterior material structure
JPH0323465Y2 (en)

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant