CN215563494U - Composite environment-friendly heat-insulation board - Google Patents

Composite environment-friendly heat-insulation board Download PDF

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Publication number
CN215563494U
CN215563494U CN202121226319.8U CN202121226319U CN215563494U CN 215563494 U CN215563494 U CN 215563494U CN 202121226319 U CN202121226319 U CN 202121226319U CN 215563494 U CN215563494 U CN 215563494U
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block
insulation board
column
supporting
fixedly connected
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CN202121226319.8U
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泮兵
匡艳飞
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Tianjin Bairuite Technology Co ltd
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Tianjin Bairuite Technology Co ltd
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Abstract

The application provides a compound environmental protection heated board belongs to heated board technical field. The composite environment-friendly heat-insulation board comprises a heat-insulation board body and an installation part. The heat insulation board is characterized in that a first sound insulation layer and a second sound insulation layer are arranged in the heat insulation board body respectively, sound insulation blocks are distributed between the first sound insulation layer and the second sound insulation layer at intervals, the other end of each supporting strip is inserted into the limiting column in a sliding mode, the fixing column is fixedly connected to the inner wall of the heat insulation board body, one side of the fixing column extends into the limiting column, and one end of the limiting column is clamped in the clamping block. Through the design of this device, it is fixed that the joint between compound environmental protection heated board installation process medium plate and the board is wholly realized, optimizes conventional simple laminating design, makes its fastening more stable, avoids not hard up each other, causes the problem of whole damage, has wholly promoted the practicality, and also has wholly promoted syllable-dividing effect through this device, reduces the limitation.

Description

Composite environment-friendly heat-insulation board
Technical Field
The application relates to the technical field of insulation boards, in particular to a composite environment-friendly insulation board.
Background
The heated board is exactly the board of using for building heat preservation, at present, the heated board generally has dampproofing, waterproof performance, can make and reduce the outer envelope thickness of building, thereby increase indoor usable floor area, at present, the heated board is used very ripe in the aspect of the environmental protection, however, refer to conventional compound environmental protection heated board's design, it is unset basically between installation middle plate and board, simply laminate, this is easy not hard up each other, cause holistic damage, the practicality of heated board has been reduced, and conventional heated board is relatively poor in the aspect of the effect that gives sound insulation, quantity is gradually increased and the noise strengthens increasingly in the face of automobile mechanization, the global design limitation is bigger and bigger.
SUMMERY OF THE UTILITY MODEL
In order to compensate above not enough, this application provides a compound environmental protection heated board, aim at improving conventional compound environmental protection heated board and be unsettled basically between installation medium plate and board, only simple laminating, this is difficult to be become flexible each other, causes holistic damage, has reduced the practicality of heated board, and conventional heated board is relatively poor in the aspect of the effect that gives sound insulation, in the face of automobile mechanization quantity increase day by day and the noise strengthens increasingly, the problem that the overall design limitation is bigger and bigger.
The embodiment of the application provides a compound environmental protection heated board, including insulation board body and installed part.
The heat insulation board is characterized in that a first sound insulation layer and a second sound insulation layer are respectively arranged in the heat insulation board body, sound insulation blocks are distributed at intervals between the first sound insulation layer and the second sound insulation layer, one side of the heat insulation board body is symmetrically and fixedly connected with a fixture block, the bottom of the heat insulation board body is provided with a limiting groove, the mounting piece comprises a limiting block, a supporting block, a spring, a limiting column, a supporting strip and a fixing column, the limiting block is fixedly connected to the upper surface of the heat insulation board body, the limiting block is in clearance fit with the limiting groove, the supporting block is slidably connected in the heat insulation board body, the spring is fixedly connected between the supporting block and the inner wall of the heat insulation board body, one end of the supporting strip is fixedly connected to one side of the supporting block, the other end of the supporting strip is slidably inserted in the limiting column, the fixing column is fixedly connected to the inner wall of the heat insulation board body, and one side of the fixing column extends into the limiting column, one end of the limiting column is clamped in the clamping block.
In the implementation process, the expanded perlite plate is arranged in the first sound insulation layer, the polyester fiber plate is arranged in the second sound insulation layer, the sound insulation block is made of glass cotton, the sound insulation effect of the device is integrally improved, the conventional heat insulation plate body design is optimized, when the device is installed and spliced, the top of the heat insulation plate body and the bottom of the heat insulation plate body are clamped and connected through the matching of the limiting block and the limiting groove, the conventional heat insulation plate body installation and attachment design is optimized, when the heat insulation plate body side edge is spliced and installed, when the clamping block is positioned in the heat insulation plate body, the clamping block is attached to the supporting block, through the sliding connection design of the supporting block and the design of the spring, the supporting block slides the supporting block, the supporting strip is driven to slide by the supporting block to slide, after a certain time, the supporting strip is integrally disconnected and connected with the limiting column, the limiting column is disconnected in supporting and limiting, and automatically descends through self gravity, at the moment, the limiting column is clamped and connected in the clamping block, wholly realize the joint installation of insulation board body side, through the design of this device, wholly realize that the joint between compound environmental protection heated board installation process medium plate and the board is fixed, optimize conventional simple laminating design, make it fasten more stably, avoid not hard up each other, cause the problem of whole damage, wholly promoted the practicality, and also promoted syllable-dividing effect wholly through this device, reduced the limitation.
In a specific embodiment, a groove is formed in the heat insulation board body, and the first sound insulation layer, the second sound insulation layer and the sound insulation block are all located in the groove.
In the above-mentioned realization in-process, through first puigging the second puigging with the sound proof piece all is located design in the recess alleviates the weight of this device, makes it be convenient for the installation fixed, sets up to inflation pearlite plate in the first puigging, sets up to polyester fiber board in the second puigging, and the sound proof piece material is the glass cotton, wholly promotes the syllable-dividing effect of this device.
In a specific embodiment, the supporting block comprises a block body and a support plate, the block body is fixedly connected with the support plate, one side of the support plate is fixedly connected with one end of the spring, and the other side of the support plate is fixedly connected with one end of the supporting strip.
In the implementation process, the block body is driven to move through the support plate through the fixed connection design of the block body and the support plate, the block body is driven to move through the support plate, the support plate is driven to move through the pushing of the block body, the support plate is driven to move through the fixed connection design of one side of the support plate and one end of the spring, the reaction force of the support plate is given through the spring through the fixed connection design of the other side of the support plate and one end of the support strip, when the clamping block does not enter the clamping groove, the block body cannot be pushed, and the support plate is driven to move through the movement of the support plate.
In a specific embodiment, a support column is fixedly connected to one side of the block body, and one end of the support column is fixedly connected to one side of the support plate.
In the implementation process, through the design of the bearing column, the block and the support plate are integrally fixedly connected, so that the block and the support plate are convenient to mutually cooperate, can be mutually clamped when the heat preservation plate body is installed, and optimizes the conventional simple laminating design.
In a specific embodiment, a clamping groove is symmetrically formed in one side of the heat preservation plate body, the other end of the spring is fixedly connected to the inner wall of the clamping groove, the block body is connected to the inside of the clamping groove in a sliding mode, and the outer wall of the clamping block is matched with the inner wall of the clamping groove.
In the implementation process, the spring is fixed conveniently through the design of the clamping groove, the block body can slide conveniently, and the clamping between the heat preservation plate bodies can be realized through the clamping block outer wall and the clamping groove inner wall in a matched mode.
In a specific embodiment, the limiting column comprises a column body and a supporting column, one end of the column body is fixedly connected to the outer wall of the supporting column, and one end of the supporting strip is inserted into one end of the supporting column in a sliding mode.
In the above-mentioned realization process, through a branch one end slip peg graft in the design of pillar one end, when a branch was driven by the extension board, the pillar can not be taken and removed, after the definite time, the pillar loses the support, through self gravity automatic decline, the cylinder joint is in a groove, wholly realizes the joint to the fixture block.
In a specific embodiment, a gap is formed at one end of the support column, and one end of the branch bar is inserted into the gap in a sliding manner.
In the implementation process, through the design of the notch, one end of the branch bar is convenient to slide and insert in the pillar, and through the sliding and inserting design, the branch bar is convenient to separate.
In a specific implementation scheme, a supporting groove is formed in the upper surface of the clamping block, and one end of the column body is clamped in the supporting groove.
In the implementation process, the clamping of the clamping blocks is integrally realized through the clamping of one end of the column body and the design in the supporting groove, and the clamping of the clamping blocks is realized when the insulation board bodies are spliced.
In a specific embodiment, a limiting hole is formed in the upper surface of the pillar, and one end of the fixing column extends into the limiting hole.
In the implementation process, one end of the fixing column extends to the limiting hole, when the supporting plate drives the supporting strip to move, the fixing column has a limiting effect on the supporting column, and the supporting column is prevented from moving along with the supporting strip.
In a specific embodiment, the bottom of the block body is fixedly connected with a sliding block, a sliding groove is formed in the heat insulation plate body, and the sliding block is connected in the sliding groove in a sliding mode.
In the implementation process, the sliding block is connected in the sliding groove in a sliding mode, the block is integrally connected in a sliding mode, the block is connected in a clamping mode through the matching spring, and meanwhile the block is reversely limited.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic front view of an embodiment of the present disclosure;
FIG. 2 is a schematic sectional view of a front view of an embodiment of the present application;
FIG. 3 is an enlarged schematic structural view of a portion A in FIG. 2 according to an embodiment of the present disclosure;
fig. 4 is an enlarged structural schematic view of a connection relationship between a fixture block and a limiting post according to an embodiment of the present disclosure;
FIG. 5 is a side cross-sectional structural schematic view provided by an embodiment of the present application;
fig. 6 is a schematic top cross-sectional structural view provided in an embodiment of the present application.
In the figure: 100-insulation board body; 110-a first sound insulating layer; 120-a second sound insulating layer; 130-a sound insulation block; 140-a groove; 150-a fixture block; 151-branch groove; 160-a limiting groove; 170-card slot; 200-a mount; 210-a stopper; 220-a support block; 221-block body; 2211-socket column; 222-a plate; 230-a spring; 240-limit column; 241-cylinder; 242-a pillar; 2421-gap; 250-branch bar; 260-fixed column.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the present application provides a composite environmental-friendly insulation board, which includes an insulation board body 100 and a mounting member 200.
Wherein, promote syllable-dividing effect through insulation board body 100, realize the joint installation between insulation board body 100 and insulation board body 100 through installed part 200.
Please refer to fig. 1, fig. 2, fig. 4, fig. 5 and fig. 6, a first soundproof layer 110 and a second soundproof layer 120 are respectively disposed in the heat insulation plate body 100, soundproof blocks 130 are spaced between the first soundproof layer 110 and the second soundproof layer 120, a groove 140 is disposed in the heat insulation plate body 100, the first soundproof layer 110, the second soundproof layer 120 and the soundproof blocks 130 are all located in the groove 140, the weight of the device is reduced by the design that the first soundproof layer 110, the second soundproof layer 120 and the soundproof blocks 130 are all located in the groove 140, so that the device is convenient to mount and fix, an expanded perlite plate is disposed in the first soundproof layer 110, a polyester fiber plate is disposed in the second soundproof layer 120, the material of the soundproof blocks 130 is glass wool, the soundproof effect of the device is integrally improved, fixture blocks 150 are symmetrically and fixedly connected to one side of the heat insulation plate body 100, and a limit groove 160 is disposed at the bottom of the heat insulation plate body 100.
Referring to fig. 1, 2, 3, 4, 5 and 6, the mounting member 200 includes a limiting block 210, a supporting block 220, a spring 230, a limiting post 240, a supporting strip 250 and a fixing post 260, the limiting block 210 is fixedly connected to the upper surface of the insulation board 100, the limiting block 210 is in clearance fit with the limiting groove 160, the supporting block 220 is slidably connected to the insulation board 100, a sliding block is fixedly connected to the bottom of the block 221, a sliding groove is formed in the insulation board 100, the sliding block is slidably connected to the sliding groove, the sliding block 221 is integrally designed by slidably connecting the sliding block to the sliding groove, the spring 230 is matched to facilitate clamping of the device, the spring 221 has reverse limiting function, the spring 230 is fixedly connected between the supporting block 220 and the inner wall of the insulation board 100, one side of the insulation board 100 is symmetrically provided with a clamping groove 170, the other end of the spring 230 is fixedly connected to the inner wall of the clamping groove 170, the block 221 is slidably connected to the clamping groove 170, the outer wall of the fixture block 150 is matched with the inner wall of the clamping groove 170, the spring 230 is fixed conveniently through the design of the clamping groove 170, the block 221 slides conveniently, and the fixture block 150 is clamped, namely the clamping between the heat preservation plate bodies 100 is realized through the design of the outer wall of the fixture block 150 matched with the inner wall of the clamping groove 170.
In this document, the supporting block 220 includes a block 221 and a support plate 222, the block 221 and the support plate 222 are fixedly connected, one side of the support plate 222 is fixedly connected to one end of the spring 230, and the other side of the support plate 222 is fixedly connected to one end of the brace 250, through the design of fixedly connecting the block 221 and the support plate 222, the block 221 is moved by the support plate 222 to drive the support plate 222 to move, through the design of fixedly connecting one side of the support plate 222 with one end of the spring 230 and the design of fixedly connecting the other side of the support plate 222 with one end of the brace 250, the support plate 222 is acted by the spring 230, when the fixture block 150 does not enter the slot 170, the block 221 cannot be pushed, the brace 250 is moved by the support plate 222 to drive the brace 250 to move, one side of the block 221 is fixedly connected with a support column 2211, one end of the support column 2211 is fixedly connected with one side of the support plate 222, through the design of the support column 2211, the fixed connection design between the block 221 and the support plate 222 is integrally realized, so that the heat-insulating plate body 100 can be conveniently matched with each other, and can be mutually clamped when the heat-insulating plate body 100 is installed, and the conventional simple laminating design is optimized.
When the heat insulation board body is specifically arranged, one end of the supporting strip 250 is fixedly connected to one side of the supporting block 220, the other end of the supporting strip 250 is inserted into the limiting column 240 in a sliding manner, the fixing column 260 is fixedly connected to the inner wall of the heat insulation board body 100, one side of the fixing column 260 extends into the limiting column 240, the upper surface of the supporting column 242 is provided with a limiting hole, one end of the fixing column 260 extends into the limiting hole, the design that one end of the fixing column 260 extends into the limiting hole is adopted, when the supporting plate 222 drives the supporting strip 250 to move, the fixing column 260 has a limiting effect on the supporting column 242 to prevent the supporting column 242 from moving along with the supporting strip 250, one end of the limiting column 240 is clamped in the clamping block 150, the limiting column 240 comprises a column 241 and a supporting column 242, one end of the column 241 is fixedly connected to the outer wall of the supporting column 242, one end of the supporting strip 250 is inserted into one end of the supporting column 242 in a sliding manner, when the supporting strip 250 is driven by the supporting plate 222, the pillar 242 cannot be moved by the driver, after a certain time, the pillar 242 loses support, automatically descends by self gravity, and the column 241 is clamped in the supporting groove 151, so that the clamping of the fixture block 150 is integrally realized.
In this embodiment, a notch 2421 has been seted up to pillar 242 one end, branch 250 one end is slided and is pegged graft in notch 2421, through the design of notch 2421, be convenient for branch 250 one end is slided and is pegged graft in pillar 242, through the design of sliding and pegging graft, be convenient for separate, branch groove 151 has been seted up to fixture block 150 upper surface, in cylinder 241 one end joint and the branch groove 151, through the design in cylinder 241 one end joint and the branch groove 151, the joint to fixture block 150 is wholly realized, when splicing insulation board body 100, realize its joint.
Specifically, the working principle of the composite environment-friendly heat-insulation board is as follows: when the device is used, the expanded perlite plate is arranged in the first sound insulation layer 110, the polyester fiber plate is arranged in the second sound insulation layer 120, the sound insulation block 130 is made of glass wool, the sound insulation effect of the device is integrally improved, the design of the conventional heat insulation plate body 100 is optimized, when the device is installed and spliced, the top of the heat insulation plate body 100 is clamped with the bottom of the heat insulation plate body 100 through the matching of the limiting block 210 and the limiting groove 160, the installation and attachment design of the conventional heat insulation plate body 100 is optimized, when the side edge of the heat insulation plate body 100 is spliced and installed, the clamping block 150 is clamped in the clamping groove 170, the clamping block 150 is attached to the block body 221, the block body 221 slides through the clamping block 150, the block body 221 drives the support plate 222 and the support strip 250 to slide, after a certain time, the support strip 250 integrally loses the insertion with the support column 242, the support column 242 supports and limits, and automatically descends through the self gravity of the column 241 and the support column 242, at this moment, cylinder 241 joint is in a groove 151, wholly realizes the joint installation of insulation board body 100 side, and through the design of this device, wholly realizes that the joint between compound environmental protection heated board installation process medium plate and the board is fixed, optimizes conventional simple laminating design, makes it fasten more stably, avoids not hard up each other, causes the problem of whole damage, wholly has promoted the practicality, and has wholly also promoted syllable-dividing effect through this device, reduces the limitation.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A composite environment-friendly heat-insulation board is characterized by comprising
The insulation board comprises an insulation board body (100), wherein a first sound insulation layer (110) and a second sound insulation layer (120) are respectively arranged in the insulation board body (100), sound insulation blocks (130) are distributed between the first sound insulation layer (110) and the second sound insulation layer (120) at intervals, clamping blocks (150) are symmetrically and fixedly connected to one side of the insulation board body (100), and a limiting groove (160) is formed in the bottom of the insulation board body (100);
The mounting piece (200) comprises a limiting block (210), a supporting block (220), a spring (230), a limiting column (240), a supporting strip (250) and a fixing column (260), the limiting block (210) is fixedly connected to the upper surface of the heat insulation plate body (100), the limiting block (210) is in clearance fit with the limiting groove (160), the supporting block (220) is connected into the heat insulation plate body (100) in a sliding mode, the spring (230) is fixedly connected between the supporting block (220) and the inner wall of the heat insulation plate body (100), one end of the supporting strip (250) is fixedly connected to one side of the supporting block (220), the other end of the supporting strip (250) is inserted into the limiting column (240) in a sliding mode, the fixing column (260) is fixedly connected to the inner wall of the heat insulation plate body (100), and one side of the fixing column (260) extends into the limiting column (240), one end of the limiting column (240) is clamped in the clamping block (150).
2. The composite environment-friendly insulation board according to claim 1, wherein a groove (140) is formed in the insulation board body (100), and the first sound insulation layer (110), the second sound insulation layer (120) and the sound insulation block (130) are all located in the groove (140).
3. The composite environment-friendly heat-insulation board as claimed in claim 1, wherein the supporting block (220) comprises a block body (221) and a supporting plate (222), the block body (221) and the supporting plate (222) are fixedly connected, one side of the supporting plate (222) is fixedly connected with one end of the spring (230), and the other side of the supporting plate (222) is fixedly connected with one end of the supporting strip (250).
4. The composite environment-friendly insulation board according to claim 3, wherein a support column (2211) is fixedly connected to one side of the block body (221), and one end of the support column (2211) is fixedly connected to one side of the support plate (222).
5. The composite environment-friendly heat-insulation board according to claim 3, wherein one side of the heat-insulation board body (100) is symmetrically provided with clamping grooves (170), the other end of the spring (230) is fixedly connected to the inner wall of the clamping groove (170), the block body (221) is slidably connected to the inside of the clamping groove (170), and the outer wall of the clamping block (150) is matched with the inner wall of the clamping groove (170).
6. The composite environment-friendly heat-insulation board as claimed in claim 1, wherein the limiting column (240) comprises a column (241) and a supporting column (242), one end of the column (241) is fixedly connected to the outer wall of the supporting column (242), and one end of the supporting bar (250) is slidably inserted into one end of the supporting column (242).
7. The composite environment-friendly heat-insulation board as claimed in claim 6, wherein a notch (2421) is formed at one end of the strut (242), and one end of the branch bar (250) is slidably inserted into the notch (2421).
8. The composite environment-friendly heat-insulation board as claimed in claim 6, wherein a supporting groove (151) is formed in the upper surface of the fixture block (150), and one end of the column (241) is clamped in the supporting groove (151).
9. The composite environment-friendly heat-insulation board as claimed in claim 6, wherein a limiting hole is formed in the upper surface of the supporting column (242), and one end of the fixing column (260) extends into the limiting hole.
10. The composite environment-friendly heat-insulation board according to claim 3, wherein a sliding block is fixedly connected to the bottom of the block body (221), a sliding groove is formed in the heat-insulation board body (100), and the sliding block is slidably connected in the sliding groove.
CN202121226319.8U 2021-06-02 2021-06-02 Composite environment-friendly heat-insulation board Active CN215563494U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121226319.8U CN215563494U (en) 2021-06-02 2021-06-02 Composite environment-friendly heat-insulation board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121226319.8U CN215563494U (en) 2021-06-02 2021-06-02 Composite environment-friendly heat-insulation board

Publications (1)

Publication Number Publication Date
CN215563494U true CN215563494U (en) 2022-01-18

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CN202121226319.8U Active CN215563494U (en) 2021-06-02 2021-06-02 Composite environment-friendly heat-insulation board

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CN (1) CN215563494U (en)

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