CN207210984U - Integral type sound absorbing-insulating baffle - Google Patents
Integral type sound absorbing-insulating baffle Download PDFInfo
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- CN207210984U CN207210984U CN201720984361.3U CN201720984361U CN207210984U CN 207210984 U CN207210984 U CN 207210984U CN 201720984361 U CN201720984361 U CN 201720984361U CN 207210984 U CN207210984 U CN 207210984U
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Abstract
The utility model discloses a kind of integral type sound absorbing-insulating baffle, including cement extrusion board（1）With support acoustic board（2）, support acoustic board（2）It is laid on cement extrusion board（1）Resonance sound-absorbing chamber is formed on neck (6) bottom surface of two inner sides（7）, support acoustic board（2）Outer surface and cement extrusion board（1）Between one layer of cast acoustic board is also cast with by pouring type in the area of space that forms（3）.Integral type sound absorbing-insulating baffle of the present utility model has the advantages that sound absorption is functional, intensity is high, outward appearance is beautiful, simple in construction, easy to make, production efficiency is high, is adapted to mass production.
Description
Technical field
A kind of engineering noise reduction product is the utility model is related to, it is especially a kind of to be applied to highway, railway, high ferro or industrial factory
The integral type sound absorbing-insulating baffle in the fields such as boundary's enclosure wall.
Background technology
With the fast development and the improvement of people's living standards of social economy, people are to living environment quality and safety
The requirement of health is also stepping up.We used in high ferro, railway, highway communication in the past sound barrier panel and in industrial factory circle
The enclosure wall sound barrier panel that enclosure wall field uses, its contribution that absorbs sound is both from the sound-absorbing material filled in sound barrier panel, and absorb sound material
Material generally selects mineral wool.But mineral wool is easily made moist during long-term use or fibrosis, after mineral wool makes moist
Can be dropped caking, have a strong impact on its sound absorbing capabilities, meanwhile, the dust and microfibre formed after mineral wool aging also can be to big compression ring
Border pollutes；In addition, the dust and microfibre that are formed after mineral wool aging easily produce under the conductive environments such as transformer station, change of current change
, certain potential safety hazard be present in raw corona.
In order to solve the problems, such as that mineral wool easily makes moist and aging, applicant study and have developed a kind of micro- premenstruum (premenstrua)
Grain acoustic board, and the patent of invention to China State Intellectual Property Office application, entitled " a kind of particulate acoustic board and its preparation side
Method ", Application No.:201410347735.1；The particulate acoustic board has good sound absorbing capabilities and durability, and it is free of glass
Glass cotton, will not make moist and aging, so applicant applies to the particulate acoustic board in the manufacture of sound barrier panel, thus grind
Send out a kind of enclosure wall Felt, and the utility model patent to China State Intellectual Property Office application, a kind of entitled " enclosure wall
Felt ", Application No.：201620980651.6；The enclosure wall Felt has very good sound absorbing capabilities and durable
Property, without mineral wool, will not make moist and aging, and it is simple in construction, easy to make, production efficiency is high, is adapted to batch metaplasia
Production；Then the Felt is carried out the two by bonding agent by the way that first cement extrusion board and acoustic board complete respectively
Assembling；But applicant has found that it there is also some problems during the actual fabrication of Felt and use,
Such as：
1. because the specification of sound barrier panel is more, so need to make a variety of can match with sound barrier panel specification
Specification acoustic board, that is, need the sound absorption board forming die of a variety of different specification sizes, this can greatly increase acoustic board
The fixed assets cost and maintenance management cost of mould.
2. for overlength sound barrier panel, although the overlength cement extrusion board used can be by suitable for all specification chis
Very little mould is integrally formed, but acoustic board can make because of the limitation of the factors such as baking oven size, mold stiffness and raw material characteristics
The length obtained after its shaping is shorter, it is impossible to meets the making requirement of overlength sound barrier panel, so it is generally necessary to using splicing sound absorption
The mode of plate makes overlength sound barrier panel, exists so as to cause the surface of sound barrier panel to have piece, and then influence sound barrier panel
Cosmetic look.
3. for overlength sound barrier panel, due to needing to use the cement extrusion board of overlength, pass through mould so result in
It is big to have the flexibility error of the cement extrusion board of shaping, so as to increase the installation difficulty of acoustic board.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of sound absorption is functional, intensity is high, outward appearance is beautiful,
It is simple in construction, easy to make, production efficiency is high, be adapted to mass production integral type sound absorbing-insulating baffle.
Technical scheme is used by the utility model solves its technical problem：Integral type sound absorbing-insulating baffle, including water
Mud extrusion board and support acoustic board, described cement extrusion board combines with the support acoustic board at least described in one piece forms sound absorption
Plate, gone back on described Felt in each outer surface for supporting acoustic board and the area of space formed between cement extrusion board
One layer of cast acoustic board is cast with by pouring type.
Further, described support acoustic board and cast acoustic board are particulate acoustic board.
Further, described cement extrusion board is formed in one plate, and its cross section is in U-typed structure, and it includes one piece
Rectangular base plate and two pieces of rectangular side panels for being located at the bottom plate long side both sides respectively, one is respectively equipped with the inside of the biside plate
The neck of bar axial direction, and the top surface width of the neck is less than its bottom width；Described each support acoustic board squeezes along cement
The length direction of ejecting plate is laid on the bottom surface of two clamp bar slots and forms resonance sound-absorbing chamber with cement extrusion board；Described cast is inhaled
The area of space that sound plate takes shape in the outer surface of support acoustic board by pouring type and the medial surface of left and right sides plate is formed
It is interior.
Further, the base plate interior of the cement extrusion board is provided with least one layer of hollow structure, and described each layer is hollow
Thickness direction interval of the structure along bottom plate is uniformly arranged, and every layer of hollow structure is by equal along baseplate width direction interval
It is even to be configured at least two first axial cavities composition.
Further, along the bottom plate width on the medial surface of bottom plate evenly and at intervals be provided with least one piece
The stiffener plate of axial direction, the inside of the stiffener plate are provided with second axial cavity, and top surface and the support of stiffener plate are inhaled
The bottom surface of sound plate is brought into close contact.
Further, the inside of the side plate is provided with the 3rd axial cavity.
Further, the shape of cross section of first axial cavity, the second axial cavity and the 3rd axial cavity can be with
For rectangle, triangle, circle or polygon.
Further, it is provided with a layer binder between the neck bottom surface of the side plate interior sides and the bottom surface for supporting acoustic board
Layer；The storage glue groove of at least one axial direction, stiffener plate and the bottom surface of support acoustic board are provided with the top surface of the stiffener plate
Between also be provided with a layer binder layer.
Further, decoration cutting, the dress are provided with the back side of the bottom plate and the outer surface of cast acoustic board
The shape for adoring cutting can be arc, rectangle, triangle, trapezoidal or polygon.
Further, the concavo-convex jointing end face along sound barrier bearing of trend is provided with described cement extrusion board, it is described
The convex surface of concavo-convex jointing end face is raised solid plate face, and the concave surface of concavo-convex jointing end face is hollow opening surface, and its cross section
For isosceles trapezoid, rectangle, triangle, polygon or circular section.
The beneficial effects of the utility model are：Cast support of the support acoustic board of the present utility model as cast acoustic board
Plate, the specification of its width dimensions and cement extrusion board is mutually matched, and its length dimension and thickness can be according to not
The size for being designed as matching with corresponding use environment with use environment situation, so being supported sound absorption board forming die
When design and making, only it need to consider to be designed as matching with the specification of cement extrusion board by its width dimensions, its length
Size can choose several conventional specifications, because, only need to be by the conventional length of several piece when needing to make overlength sound barrier panel
Spend length direction of the support acoustic board of size along cement extrusion board mutually to splice and be laid on the bottom surface of neck, make
The supporting plate length that it is formed is identical with the length of overlength cement extrusion board, so as to provide a cast support to cast acoustic board
Space, and without designing, producing a variety of different length sizes and be equipped with width dimensions and cement extrusion board specification phase
The sound absorption board forming die matched somebody with somebody, so as to greatly reduce the fixed assets cost and maintenance management cost of sound absorption board forming die.
Meanwhile support acoustic board need not be stuck in the neck of cement extrusion board by integral type sound absorbing-insulating baffle of the present utility model,
And the both sides for supporting acoustic board need to be only ridden on the bottom surface of neck and be bonded together by binding agent with cement extrusion board, make
Support the outer surface of acoustic board can be as the cast supporting surface of cast acoustic board, and it is positive to be located at integral type sound absorbing-insulating baffle
Cast acoustic board is by the way that the sound absorption particle after overlay film to be cast in outer surface and cement extrusion board by each support acoustic board
Formed in the area of space formed between the medial surface of biside plate, so efficiently solving acoustic board because of cement extrusion board
Flexibility error it is big and caused by installation difficulty it is big the problem of.In addition, integral type sound absorbing-insulating baffle of the present utility model is just
Face（Pour into a mould the outer surface of acoustic board）There is no a piece, outward appearance is very attractive in appearance.
Brief description of the drawings
Fig. 1 is the structural representation of integral type sound absorbing-insulating baffle of the present utility model.
Fig. 2 is the front view of integral type sound absorbing-insulating baffle of the present utility model.
Fig. 3 is the structural representation of cement extrusion board.
Fig. 4 is the structural representation for supporting acoustic board.
Fig. 5 is the structural representation for pouring into a mould acoustic board.
In figure mark for：1- cement extrusion boards, 2- support acoustic boards, 3- cast acoustic boards, 4- bottom plates, 5- side plates, 6- cards
Groove, 7- resonance sound-absorbing chambers, the axial cavities of 8- first, 9- stiffener plates, the axial cavities of 10- second, the axial cavities of 11- the 3rd, 12-
Storage glue groove, 13- decoration cuttings, 14- convex surfaces, 15- concave surfaces.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples, but embodiment of the present utility model is unlimited
In this.
As Figure 1-Figure 5, integral type sound absorbing-insulating baffle of the present utility model, including cement extrusion board 1 and support are inhaled
Sound plate 2, described cement extrusion board 1 combines with the support acoustic board 2 at least described in one piece forms Felt, in described suction
Also by cast side in the area of space formed on sound insulationg board between the outer surface of each support acoustic board 2 and cement extrusion board 1
Formula is cast with one layer of cast acoustic board 3.
Specifically, described support acoustic board 2 and cast acoustic board 3 are particulate acoustic board.Described particulate acoustic board 1
The Application No. proposed using applicant is recorded on July 22nd, 2014 to China State Intellectual Property Office
2014103477351, the particulate in the Chinese invention patent of entitled " a kind of polymer particle acoustic board and preparation method thereof " is inhaled
Sound plate.By the way that this kind of particulate acoustic board is applied in integral type sound absorbing-insulating baffle of the present utility model, it is ensured that one
Formula sound absorbing-insulating baffle has very good sound absorbing capabilities and durability, while does not pollute the environment also.
Described cement extrusion board 1 is formed in one plate, and the cross section of cement extrusion board 1 is in U-typed structure, and it includes one
Block rectangular base plate 4 and two pieces of rectangular side panels 5 for being located at the long side both sides of bottom plate 4 respectively, in the inside top of the biside plate 5
The rectangle neck 6 of an axial direction is respectively equipped with, and the top surface width of the neck 6 is less than its bottom width；Described support is inhaled
Sound plate 2 is rectangular slab, and length direction of each supporting plate 2 along cement extrusion board 1 is laid on the bottom surface of two clamp bar slot 6 simultaneously
Resonance sound-absorbing chamber 7 is formed with cement extrusion board 1, the thickness of the resonance sound-absorbing chamber 7 can exist according to the width and neck 6 of side plate 5
Position on side plate 5 is adjusted, and from helmholtz resonance sound absorption principle, the resonance sound-absorbing chamber 7 can strengthen the present invention's
The sound absorbing capabilities of integral type sound absorbing-insulating baffle；Because the top surface width of neck 6 is less than its bottom width, so support acoustic board
2 can easily be laid on the bottom surface of neck 6, that is, support the bottom surface both ends of acoustic board 2 simply to ride over two clamp bar slots 6 of left and right respectively
Bottom surface on, the left and right sides of support acoustic board 2 is not extend into the inside of the clamp bar slot 6 of left and right two, and supports the top surface of acoustic board 2
On two long sides and the top surface of two clamp bar slot of left and right 6 outer edge line between be separated with a certain distance so that after overlay film
Sound absorption particle can be entered in neck 6, wait absorb sound it is particles cured after, you can be shaped to and support acoustic board 2 and cement extrusion board 1
Be integrated and both ends carry the cast acoustic board 3 of projection cube structure, can simultaneously ensure to support acoustic board 2 and pour into a mould acoustic board 3
Fixation reliability；Described cast acoustic board 3 takes shape in the outer surface and left and right two of each support acoustic board 2 by pouring type
In the area of space formed between the medial surface of side plate 5, so as to form the present invention's with support acoustic board 2 and cement extrusion board 1
Integral type sound absorbing-insulating baffle.
At least one layer of hollow structure is provided with evenly and at intervals inside bottom plate 4 along the thickness direction of the bottom plate 4, every layer
Hollow structure form by being uniformly arranged at least two first axial cavities 8 of ground along the width interval of bottom plate 4, described the
The shape of one axial cavity 8 can be rectangle, triangle, circle or polygon etc..By on the bottom plate 4 of cement extrusion board 1
At least one layer of hollow structure is set, and every layer of hollow structure is made up of the first axial cavity 8 of some spaced arrangements again,
So be internally formed the space structure that can strengthen bottom plate semi-finals degree in bottom plate 4, so as to improve bottom plate 4 intensity of itself, make bottom
The intensity of plate 4 meets the requirement to its intensity during actual installation and use, so as to avoid integral type sound absorbing-insulating baffle
Deformed in actual use caused by its insufficient strength, and then influence the practice of integral type sound absorbing-insulating baffle
And popularization；Meanwhile design the hollow structure and can also mitigate the weight of whole integral type sound absorbing-insulating baffle, so as to facilitate integral type
Transport, lifting and the installation of sound absorbing-insulating baffle.
Along the width of the bottom plate 4 in being provided with least one piece of axial direction on the medial surface of bottom plate 4 evenly and at intervals
Stiffener plate 9, the inside of the stiffener plate 9 is provided with second axial cavity 10, the shape of second axial cavity 10
Shape can be rectangle, triangle, circle or polygon etc., and the top surface of stiffener plate 9 is with supporting the bottom surface of acoustic board 2 closely to paste
Close；By setting stiffener plate 9 on the medial surface of bottom plate 4, it can both strengthen the rigidity of cement extrusion board 1, moreover it is possible to support
Acoustic board 2 is played a supporting role, beneficial to the moulding by casting of follow-up cast acoustic board 3；In addition, by being set inside stiffener plate 9
There is second axial cavity 10, stiffener plate 9 rigidity of itself can be further enhanced, so that on the medial surface of bottom plate 4 to the greatest extent
The less stiffener plate 9 of amount arrangement quantity, and then increase the resonance sound-absorbing chamber 7 between support acoustic board 2 and cement extrusion board 1
Cavity area, so as to ensure that integral type sound absorbing-insulating baffle has more preferable sound absorbing capabilities.
In order to further mitigate the weight of cement extrusion board 1, so as to transport of the convenience to integral type sound absorbing-insulating baffle, hang
It is filled with and installs, is additionally provided with the 3rd axial cavity 11 in the inside of the side plate 5, the shape of the 3rd axial cavity 11 can
Think rectangle, triangle, circle or polygon etc..
A layer binder layer is provided between the bottom surface of neck 6 of the inner side of side plate 5 and the bottom surface for supporting acoustic board 2；It is described
The arc storage glue groove 12 of at least one axial direction, stiffener plate 9 and support acoustic board 2 are additionally provided with the top surface of stiffener plate 9
A layer binder layer also is provided between bottom surface.Arc storage glue groove 12 is set by the top surface in stiffener plate 9, reinforcement can be increased
Bond area between gusset 9 and support acoustic board 2, and then strengthen stiffener plate 9 and support the bonding between acoustic board 2 strong
Degree, ensure the fixation reliability of support acoustic board 2, what binding agent herein was selected is weather-proof building structural glue.Meanwhile by
A layer binder layer is set between support acoustic board 2 and the bottom surface of neck 6, the fixation of support acoustic board 2 can be further enhanced
Reliability.
In order that the appearance of integral type sound absorbing-insulating baffle of the present utility model obtain it is more attractive in appearance, in the bottom plate 4
The back side and cast acoustic board 3 outer surface on be provided with decoration cutting 13, it is described decoration cutting 13 shape can be arc,
Combination more than one or both of rectangle, triangle, trapezoidal, polygon.Certainly, in order that integral type sound absorbing-insulating baffle
Outward appearance seem succinct, generous, can also be not provided with decorate cutting 13, its surface is smooth plane.
The concavo-convex jointing end face along sound barrier bearing of trend is additionally provided with described cement extrusion board 1, the bumps connect
The convex surface 14 for closing end face is raised solid plate face, and the concave surface 15 of concavo-convex jointing end face is hollow opening surface, and its cross section is
Isosceles trapezoid section, it is clear that its cross section can also be rectangle, triangle, polygon or circular section etc.；By described recessed
Face 15 and the mutual cooperation on convex surface 14, can conveniently realize the fixation between integral type sound barrier panel and integral type sound barrier panel
Connection, moreover it is possible to increase the diffraction distance of sound wave, so as to improve the sound insulation property of integral type sound barrier panel.
The preparation method of integral type sound absorbing-insulating baffle of the present utility model is：Board forming die is extruded by cement first
The cement extrusion board 1 of design specification size is made, at least one piece of broad-ruler is then made by the board forming die that absorbs sound again
The very little support acoustic board 2 to match with the specification of cement extrusion board 1, afterwards on the bottom surface of neck 6 and the top of stiffener plate 9
A layer binder is painted on face, length direction of the described each support acoustic board 2 along cement extrusion board 1 is laid on water afterwards
On the bottom surface of two clamp bar slots 6 of mud extrusion board 1, each support acoustic board 2 is bonded as one with cement extrusion board 1, again will afterwards
Sound absorption particle after overlay film is filled in the outer surface of each support acoustic board 2 and the medial surface of left and right sides plate 5 using pouring type
Between in the area of space that forms, wait absorb sound it is particles cured after to may be molded to support acoustic board 2 and cement extrusion board 1 be one
The cast acoustic board 3 of body, the outer surface of cast acoustic board 3 flushes with the top surface of left and right sides plate 5, finally in cement extrusion board 1
The back side of bottom plate 4 and cast acoustic board 3 outer surface on depict decoration cutting 13.
Cast supporting plate of the support acoustic board of the present utility model as cast acoustic board, its width dimensions are extruded with cement
The specification of plate is mutually matched, and its length dimension and thickness can be designed as and phase according to different use environment situations
Answer the size that use environment matches, thus be supported sound absorption board forming die design and making when, only need to consider by
Its width dimensions is designed as matching with the specification of cement extrusion board, and its length dimension can choose several conventional rule
Lattice size, because, only need to be by several piece often with the support acoustic board of length dimension along dampening when needing to make overlength sound barrier panel
The length direction of mud extrusion board mutually splices and is laid on the bottom surface of neck, the supporting plate length and overlength for forming it
The length of cement extrusion board is identical, so as to give cast acoustic board to provide a cast supporting and space, and it is more without designing, producing
Kind different length size is simultaneously equipped with the sound absorption board forming die that width dimensions match with cement extrusion board specification, so as to big
The big fixed assets cost and maintenance management cost for reducing sound absorption board forming die.Meanwhile integral type of the present utility model is inhaled
Support acoustic board need not be stuck in the neck of cement extrusion board by acoustic screen baffle, and need to only be taken the both sides for supporting acoustic board
It is bonded together on the bottom surface of neck and by binding agent and cement extrusion board, the outer surface of support acoustic board is used as and pour
The cast supporting surface of acoustic board is noted, and is by by after overlay film positioned at the positive cast acoustic board of integral type sound absorbing-insulating baffle
Sound absorption particle is cast in the sky formed between the medial surface of the biside plate by each outer surface for supporting acoustic board and cement extrusion board
Between formed in region, so efficiently solve acoustic board because the flexibility error of cement extrusion board is big and caused by install it is difficult
Spend the problem of big.In addition, the front of integral type sound absorbing-insulating baffle of the present utility model（Pour into a mould the outer surface of acoustic board）Not yet
There is a piece, outward appearance is very attractive in appearance.
Claims (10)
1. integral type sound absorbing-insulating baffle, including cement extrusion board（1）With support acoustic board（2）, it is characterised in that：Described water
Mud extrusion board（1）With the support acoustic board at least described in one piece（2）Combination form Felt, on described Felt in
Each support acoustic board（2）Outer surface and cement extrusion board（1）Between also poured into a mould by pouring type in the area of space that forms
There is one layer of cast acoustic board（3）.
2. integral type sound absorbing-insulating baffle according to claim 1, it is characterised in that：Described support acoustic board（2）With
Pour into a mould acoustic board（3）It is particulate acoustic board.
3. integral type sound absorbing-insulating baffle according to claim 2, it is characterised in that：Described cement extrusion board（1）For
Plate is integrally formed, its cross section is in U-typed structure, and it includes one piece of rectangular base plate（4）It is located at the bottom plate respectively with two pieces（4）
The rectangular side panels of long side both sides（5）, in the biside plate（5）Inner side be respectively equipped with the neck of an axial direction（6）, and the card
Groove（6）Top surface width be less than its bottom width；Described each support acoustic board（2）Spread along the length direction of cement extrusion board
It is located at two clamp bar slots（6）Bottom surface on and with cement extrusion board（1）Form resonance sound-absorbing chamber（7）；Described cast acoustic board（3）
Support acoustic board is taken shape in by pouring type（2）Outer surface and left and right sides plate（5）The space region that is formed of medial surface
In domain.
4. integral type sound absorbing-insulating baffle according to claim 3, it is characterised in that：The cement extrusion board（1）Bottom
Plate（4）Inside is provided with least one layer of hollow structure, and described each layer hollow structure is along bottom plate（4）Thickness direction interval it is uniform
Set, and every layer of hollow structure is by along bottom plate（4）It is axially empty that width interval is uniformly arranged ground at least two first
Chamber（8）Form.
5. integral type sound absorbing-insulating baffle according to claim 4, it is characterised in that：Along the bottom plate（4）Width
Direction is in bottom plate（4）Medial surface on be provided with the stiffener plate of at least one piece axial direction evenly and at intervals（9）, the stiffener plate
（9）Inside be provided with second axial cavity（10）, stiffener plate（9）Top surface with support acoustic board（2）Bottom surface it is close
Fitting.
6. integral type sound absorbing-insulating baffle according to claim 5, it is characterised in that：The side plate（5）Inside be provided with
One the 3rd axial cavity（11）.
7. integral type sound absorbing-insulating baffle according to claim 6, it is characterised in that：First axial cavity（8）,
Two axial cavities（10）With the 3rd axial cavity（11）Shape of cross section be rectangle, triangle, circle or polygon.
8. integral type sound absorbing-insulating baffle according to claim 5, it is characterised in that：The side plate（5）The neck of inner side
（6）Bottom surface and support acoustic board（2）Bottom surface between be provided with a layer binder layer；The stiffener plate（9）Top surface on set
There is the storage glue groove of at least one axial direction（12）, stiffener plate（9）With supporting acoustic board（2）Bottom surface between also be provided with one layer of bonding
Oxidant layer.
9. sound absorbing-insulating baffle according to claim 3, it is characterised in that：The bottom plate（4）The back side and cast absorb sound
Plate（3）Outer surface on be provided with decoration cutting（13）, the decoration cutting（13）Be shaped as arc, rectangle, triangle,
Trapezoidal or polygon.
10. the integral type sound absorbing-insulating baffle according to any one in claim 1-9, it is characterised in that：Described water
Mud extrusion board（1）On be provided with concavo-convex jointing end face along sound barrier bearing of trend, the convex surface of the concavo-convex jointing end face（14）
For the solid plate face of projection, the concave surface of concavo-convex jointing end face（15）For hollow opening surface, and its cross section is isosceles trapezoid, square
Shape, triangle, polygon or circular section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720984361.3U CN207210984U (en) | 2017-08-08 | 2017-08-08 | Integral type sound absorbing-insulating baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720984361.3U CN207210984U (en) | 2017-08-08 | 2017-08-08 | Integral type sound absorbing-insulating baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207210984U true CN207210984U (en) | 2018-04-10 |
Family
ID=61818312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720984361.3U Withdrawn - After Issue CN207210984U (en) | 2017-08-08 | 2017-08-08 | Integral type sound absorbing-insulating baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207210984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326818A (en) * | 2017-08-08 | 2017-11-07 | 正升环境科技股份有限公司 | Integral type sound absorbing-insulating baffle |
-
2017
- 2017-08-08 CN CN201720984361.3U patent/CN207210984U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326818A (en) * | 2017-08-08 | 2017-11-07 | 正升环境科技股份有限公司 | Integral type sound absorbing-insulating baffle |
| CN107326818B (en) * | 2017-08-08 | 2023-09-19 | 正升环境科技股份有限公司 | Integrated sound absorption and insulation barrier plate |
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