CN114685066B - Laminated glass with good heat insulation effect - Google Patents

Laminated glass with good heat insulation effect Download PDF

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Publication number
CN114685066B
CN114685066B CN202210336343.XA CN202210336343A CN114685066B CN 114685066 B CN114685066 B CN 114685066B CN 202210336343 A CN202210336343 A CN 202210336343A CN 114685066 B CN114685066 B CN 114685066B
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heat insulation
block
laminated glass
fixedly connected
sound
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CN114685066A (en
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郑丽
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06Joining glass to glass by processes other than fusing
    • C03C27/10Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The invention discloses laminated glass with good heat insulation effect, and relates to the technical field of laminated glass. According to the invention, the rotary rod is driven to rotate by the adjusting rotary table through the cooperation of the rotary rod and the supporting frame, the rotary rod drives the threaded rod to move in the concave block, so that the convex block presses the extrusion block, the supporting frame is driven to extrude the second heat insulation block and the heat insulation plate, the second heat insulation block is fully contacted with the first heat insulation block, the heat insulation performance inside the laminated glass body is improved, the problems that the traditional laminated glass is poor in heat insulation performance, single in heat insulation mode, incapable of being adjusted according to actual conditions and incapable of achieving a better heat insulation mode are solved, and the effects of improving the heat insulation performance and facilitating the adjustment of the heat insulation mode are achieved.

Description

Laminated glass with good heat insulation effect
Technical Field
The invention relates to the technical field of laminated glass, in particular to laminated glass with good heat insulation effect.
Background
The laminated glass is a composite glass product which is formed by permanently bonding two or more pieces of glass and an intermediate film into a whole after one or more layers of organic polymer intermediate films are sandwiched between the two or more pieces of glass and are subjected to special high-temperature pre-pressing (or vacuumizing) and high-temperature high-pressure process treatment, wherein the common laminated glass intermediate films comprise: PVB, SGP, EVA, PU, and other relatively special decorative and functional laminated glasses such as color laminated glass, SGX laminated glass, XIR laminated glass with LOW-E laminated glass, laminated glass with embedded decorative parts (metal mesh, metal plate, etc.), laminated glass with embedded PET material, and the like. The following problems exist in the prior art:
1. the traditional laminated glass is poor in heat insulation, is not suitable for places with higher temperature, is single in heat insulation mode, cannot be adjusted according to actual conditions, and cannot achieve a better heat insulation mode;
2. the existing laminated glass is poor in sound insulation effect, and a hollow structure or an inner filled sound insulation material is generally used for sound insulation, so that the sound insulation effect is poor, and the indoor environment is influenced.
Disclosure of Invention
The invention provides laminated glass with good heat insulation effect, which solves the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a laminated glass that thermal-insulated effect is good, includes the laminated glass body, the equal fixedly connected with sound insulation base member in top and bottom of laminated glass body, one side swing joint of laminated glass body has the regulation carousel, the inner wall top and the bottom fixed mounting of laminated glass body have first thermal-insulated piece, the inside of laminated glass body is provided with the support frame, the top and the bottom swing joint of support frame have the heat insulating board, one side fixedly connected with second thermal-insulated piece of heat insulating board.
The inner surface movable mounting of support frame has the rotary rod, one end and the one side fixed connection of adjusting turntable of rotary rod, the other end fixedly connected with threaded rod of rotary rod, inner wall one side fixedly connected with concave type piece of laminated glass body, the one end of threaded rod extends to the inside of concave type piece.
The outer surface of the rotary rod is fixedly provided with a conical block, one side of the conical block is provided with a third heat insulation block, and one side of the third heat insulation block is fixedly connected with the outer surface of the rotary rod.
The technical scheme of the invention is further improved as follows: the support frame includes holding ring and bracing piece, one end and one side swing joint of heat insulating board of bracing piece, the other end of bracing piece extends to the inside of holding ring, the one end fixedly connected with arc of bracing piece, one side fixedly connected with extrusion piece of arc, the one end of extrusion piece extends to the internal surface of holding ring.
By adopting the technical scheme, the supporting rod in the scheme is convenient for pushing the heat insulation plate to be tightly attached to the second heat insulation block and the first heat insulation block, the arc-shaped plate is convenient for transmitting the pressure of the extrusion block to the supporting rod, and the extrusion block is convenient for transmitting the pressure of the protruding block.
The technical scheme of the invention is further improved as follows: one end of the conical block is fixedly connected with a lug, one side of the lug is fixedly connected with the outer surface of the rotary rod, and a pulley is movably arranged on the outer surface of the lug.
By adopting the technical scheme, the lug in the scheme is convenient for press the extrusion block, the pulley is convenient for reduce the friction force between the extrusion block and the lug, and the rotary rod drives the lug to rotate, so that the lug and the extrusion block are opposite to each other, and stably move to the inside of the groove.
The technical scheme of the invention is further improved as follows: the heat insulating board is close to one side of the support frame and is provided with a sliding groove, a sliding block is movably arranged in the sliding groove, and one end of the sliding block is fixedly connected with one end of the support rod.
By adopting the technical scheme, the sliding chute in the scheme is convenient for accommodating the sliding block, and the stability of the supporting rod during movement is improved.
The technical scheme of the invention is further improved as follows: the surface fixed mounting of sound insulation base member has the sound absorption body, the one end of sound absorption body extends to the inside of sound insulation base member, the sound absorption passageway has been seted up to the inside of sound absorption body, the inner wall fixedly connected with acoustic celotex board of sound insulation base member, one side fixedly connected with of acoustic celotex board inhales the sound piece.
Adopt above-mentioned technical scheme, the sound absorption passageway in this scheme is convenient for absorb the noise, and the abatvoix is convenient for carry out the isolation with the noise, prevents to influence indoor environment, and the abatvoix is convenient for absorb the isolated noise to reach the sound insulation effect.
The technical scheme of the invention is further improved as follows: the outer surface of the sound absorbing body is provided with a first sound absorbing hole, and the inside of the sound absorbing channel is fixedly connected with an arc-shaped strip.
By adopting the technical scheme, the sound absorption holes in the scheme are convenient for absorbing the noise in the range of the sound insulation matrix, the sound absorption efficiency is improved, the arc-shaped strips are convenient for mutually rebounding the noise in the sound absorption channel, so that the noise is eliminated, and the silencing and sound insulation effects are improved.
The technical scheme of the invention is further improved as follows: the outer surface of the arc-shaped strip is provided with a second sound absorption hole, and sound absorption cotton is fixedly arranged in the second sound absorption hole.
By adopting the technical scheme, the second sound absorption holes in the scheme are convenient for storing sound absorption cotton, and the sound absorption cotton is convenient for improving the sound absorption efficiency of the sound absorption body.
The technical scheme of the invention is further improved as follows: the bump is characterized in that a groove is formed in one side of the bump, a particle pad is fixedly arranged in the groove, a cushion block is fixedly arranged in the bump, one end of the cushion block extends to the inner surface of the groove, and a bump is fixedly connected to one end of the cushion block.
By adopting the technical scheme, the grooves in the scheme are convenient for improving the stress areas of the extrusion blocks and the convex blocks, and the particle pads are convenient for reducing the friction force between the convex blocks and the extrusion blocks when the threaded rods drive the rotary rods to move, so that the conical blocks stably press the extrusion blocks, and the convex points and the cushion blocks are convenient for improving the stability of the inside of the convex blocks.
By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:
1. the invention provides laminated glass with good heat insulation effect, which adopts the cooperation of a rotary rod and a supporting frame, and drives the rotary rod to rotate through an adjusting rotary disc, and the rotary rod drives a threaded rod to move in a concave block, so that a convex block presses an extrusion block, and drives the supporting frame to extrude a second heat insulation block and a heat insulation plate to fully contact with the first heat insulation block, thereby improving the heat insulation performance of the inside of a laminated glass body, solving the problems that the traditional laminated glass is poor in heat insulation performance, single in heat insulation mode, incapable of being adjusted according to actual conditions and incapable of achieving a better heat insulation mode, and achieving the effects of improving the heat insulation performance and facilitating the adjustment of the heat insulation mode.
2. The invention provides laminated glass with good heat insulation effect, which adopts the cooperation of a convex block and an extrusion block, when an adjusting turntable drives a rotary rod to rotate, the rotary rod drives the convex block to rotate, a pulley reduces the friction force between the convex block and extrusion, the extrusion block and the convex block are convenient to bear force mutually, the supporting rod is pushed to move upwards, the sliding block moves in a sliding groove, the stability of the supporting rod is improved, meanwhile, the extrusion block is pressed down by the gravity influence of a heat insulation plate and a second heat insulation block and enters the groove, a threaded rod drives a conical block to press the extrusion block, so that the conical block stably supports the supporting rod, and the pressure of the heat insulation plate and the second heat insulation block is buffered by an inner cushion block and particles, so that the stability of an inner structure is further ensured, the problem that the inner structure is disturbed when the heat insulation mode of the laminated glass is adjusted, and the effect of improving the stability of the inner structure is achieved.
3. The invention provides laminated glass with good heat insulation effect, the sound absorption body is matched with the sound absorption block, the sound absorption body absorbs noise to the inside through the sound absorption channel and the first sound absorption hole, the arc-shaped strip is used for rebound elimination of the noise, meanwhile, the sound absorption cotton is matched for absorbing the noise, the sound insulation effect is realized, part of the noise enters the inside of the sound insulation matrix along the sound absorption channel, the sound insulation board prevents the noise from leaking out, and meanwhile, the sound is eliminated through the sound absorption block in a reciprocating way, so that the problem that the existing laminated glass is poor in sound insulation effect, and the problem that the indoor environment is influenced due to poor sound insulation effect caused by the fact that a hollow structure or a sound insulation material is filled in the inside is solved, and the effects of conveniently absorbing the noise, improving the sound insulation performance and improving the indoor environment are achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of a support frame according to the present invention;
FIG. 4 is a schematic view of a bump structure according to the present invention;
FIG. 5 is a schematic view of the sound insulation matrix structure of the present invention
Fig. 6 is a schematic view of the arc-shaped strip structure of the present invention.
In the figure: 1. a laminated glass body; 2. a sound insulation substrate; 3. adjusting a turntable;
11. a first insulating block; 12. a support frame; 13. a heat insulating plate; 14. a second insulating block; 15. a concave block;
21. a sound absorbing body; 22. a sound absorbing channel; 23. a sound insulation board; 24. a sound-absorbing block; 25. a first sound-absorbing hole; 26. an arc-shaped strip;
31. a rotating rod; 32. a threaded rod; 33. a conical block; 34. a third insulation block; 35. a bump; 36. a pulley;
121. a support ring; 122. a support rod; 123. an arc-shaped plate; 124. extruding a block;
131. a chute; 132. a slide block;
261. a second sound absorbing hole; 262. sound absorbing cotton;
351. a groove; 352. a particle mat; 353. a cushion block; 354. and (5) protruding points.
Detailed Description
The invention is further illustrated by the following examples:
example 1
As shown in fig. 1-6, the invention provides laminated glass with good heat insulation effect, which comprises a laminated glass body 1, wherein the top and the bottom of the laminated glass body 1 are fixedly connected with a sound insulation substrate 2, one side of the laminated glass body 1 is movably connected with an adjusting rotary table 3, the top and the bottom of the inner wall of the laminated glass body 1 are fixedly provided with a first heat insulation block 11, the inside of the laminated glass body 1 is provided with a supporting frame 12, the top and the bottom of the supporting frame 12 are movably connected with a heat insulation plate 13, one side of the heat insulation plate 13 is fixedly connected with a second heat insulation block 14, the inner surface of the supporting frame 12 is movably provided with a rotary rod 31, one end of the rotary rod 31 is fixedly connected with one side of the adjusting rotary table 3, the other end of the rotary rod 31 is fixedly connected with a threaded rod 32, one side of the inner wall of the laminated glass body 1 is fixedly connected with a concave block 15, one end of the threaded rod 32 extends into the concave block 15, the outer surface of the rotary rod 31 is fixedly provided with a conical block 33, one side of the conical block 33 is provided with a third heat insulation block 34, and one side of the third heat insulation block 34 is fixedly connected with the outer surface of the rotary rod 31.
In this embodiment, the supporting frame 12 is provided with a plurality of first heat insulation blocks 11 and second heat insulation blocks 14, and when the adjusting turntable 3 drives the rotating rod 31 to rotate, the rotating rod 31 drives the threaded rod 32 to rotate on the inner surface of the concave block 15, so that the rotating rod 31 drives the conical block 33 to squeeze the inner surface of the supporting frame 12, the supporting frame 12 pushes the heat insulation plate 13 and the second heat insulation blocks 14 to move, the first heat insulation blocks 11 are tightly attached, and the heat insulation performance inside the laminated glass body 1 is further improved by the aid of the third heat insulation blocks 34.
Example 2
As shown in fig. 1-6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the support frame 12 includes support ring 121 and bracing piece 122, the one end and the one side swing joint of heat insulating board 13 of bracing piece 122, the other end of bracing piece 122 extends to the inside of support ring 121, the one end fixedly connected with arc 123 of bracing piece 122, one side fixedly connected with extrusion piece 124 of arc 123, the one end of extrusion piece 124 extends to the internal surface of support ring 121, spout 131 has been seted up to the one side that heat insulating board 13 is close to support frame 12, the inside movable mounting of spout 131 has slider 132, the one end and the one end fixed connection of bracing piece 122 of slider 132, the one end fixedly connected with lug 35 of toper piece 33, one side and the surface fixed connection of rotary rod 31 of lug 35, the surface movable mounting of lug 36 has pulley, recess 351 has been seted up to one side of lug 35, the inside fixed mounting of recess 351 has granule pad 352, the inside fixed mounting of lug 35 has cushion 353, the one end of cushion 353 extends to the internal surface of recess 351, the one end fixedly connected with bump 354 of cushion 353.
In this embodiment, the inner diameter of the supporting ring 121 is larger than the inner diameter of the rotating rod 31, when the rotating rod 31 rotates, the friction force to the extrusion block 124 is reduced by the protruding block 35 through the pulley 36, so that one end of the protruding block 35 and the extrusion block 124 are pressed mutually, thereby pushing the supporting rod 122 and the sliding block 132 to move inside the sliding groove 131 and pushing the heat insulation plate 13 and the second heat insulation block 14, and simultaneously the extrusion block 124 stably moves inside the groove 351, the friction force between the two is reduced by the particle pad 352, and one end of the conical block 33 presses the extrusion block 124, so that the stability of the internal structure is improved.
Example 3
As shown in fig. 1-6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the outer surface fixed mounting of sound insulation base member 2 has sound absorption body 21, the inside that sound absorption body 21's one end extended to sound insulation base member 2, sound absorption passageway 22 has been seted up to the inside of sound absorption body 21, the inner wall fixedly connected with acoustic celotex board 23 of sound insulation base member 2, one side fixedly connected with of acoustic celotex board 23 inhales sound piece 24, first sound absorption hole 25 has been seted up to the surface of sound absorption body 21, the inside fixedly connected with arc strip 26 of sound absorption passageway 22, the second sound absorption hole 261 has been seted up to the surface of arc strip 26, the inside fixedly mounted of second sound absorption hole 261 has the sound absorption cotton 262.
In this embodiment, inhale sound body 21 and be provided with a plurality of, and evenly distributed is at the internal surface of sound insulation base member 2, absorb the outside noise to inhale the inside of sound passageway 22, and transmit to the inside of sound insulation base member 2, the acoustic celotex board 23 is isolated the noise, and inhale the noise through the sound absorption piece 24 that alternately divides the row, thereby reach the sound insulation effect, first sound absorption hole 25 improves the efficiency of inhaling the sound body 21 to noise absorption simultaneously, arc strip 26 then will come and go the resilience at the noise of inhaling the sound passageway 22, and inhale the further absorption of noise through the assistance of second sound absorption hole 261 and sound absorption cotton 262, improve the sound insulation effect of laminated glass body 1.
The working principle of the laminated glass with good heat insulation effect is specifically described below.
As shown in fig. 1-6, when the heat insulation mode of the laminated glass body 1 needs to be adjusted, the adjusting turntable 3 is rotated, the adjusting turntable 3 drives the rotating rod 31 to rotate, the rotating rod 31 drives the threaded rod 32 to move in the concave block 15, and simultaneously drives the protruding block 35 to rotate to squeeze the end part of the squeezing block 124, so that the end part of the squeezing block 124 stably moves to the inside of the groove 351, under the action of the threaded rod 32, the conical block 33 is in uniform contact with the squeezing block 124, the squeezing block 124 is pressed, so that the supporting rod 122 and the sliding block 132 are driven to move in the sliding groove 131, the heat insulation plate 13 is pushed to be fully attached to the first heat insulation block 11 with the second heat insulation block 14, gaps between the first heat insulation blocks 11 are filled, and the heat insulation property of the laminated glass body 1 is further improved by the third heat insulation block 34, so that the laminated glass body 1 is conveniently used in different places, when the laminated glass body 21 absorbs noise into the inside the sound insulation channel 22 and is transferred into the inside of the base 2, the sound absorption block 23 absorbs noise, the noise absorption block 24 absorbs the noise, the noise inside the sound absorption channel 22, the noise absorption bar absorbs the noise, and the noise absorption block 26 fully rebound through the sound absorption cotton.
The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (4)

1. The utility model provides a laminated glass that thermal-insulated effect is good, includes laminated glass body (1), the equal fixedly connected with of top and bottom of laminated glass body (1) gives sound insulation base member (2), one side swing joint of laminated glass body (1) has regulation carousel (3), its characterized in that: the top and the bottom of the inner wall of the laminated glass body (1) are fixedly provided with first heat insulation blocks (11), a supporting frame (12) is arranged in the laminated glass body (1), the top and the bottom of the supporting frame (12) are movably connected with heat insulation plates (13), and one side of each heat insulation plate (13) is fixedly connected with a second heat insulation block (14);
the inner surface of the supporting frame (12) is movably provided with a rotating rod (31), one end of the rotating rod (31) is fixedly connected with one side of the adjusting turntable (3), the other end of the rotating rod (31) is fixedly connected with a threaded rod (32), one side of the inner wall of the laminated glass body (1) is fixedly connected with a concave block (15), and one end of the threaded rod (32) extends to the inside of the concave block (15);
the outer surface of the rotary rod (31) is fixedly provided with a conical block (33), one side of the conical block (33) is provided with a third heat insulation block (34), and one side of the third heat insulation block (34) is fixedly connected with the outer surface of the rotary rod (31);
the support frame (12) comprises a support ring (121) and a support rod (122), one end of the support rod (122) is movably connected with one side of the heat insulation plate (13), the other end of the support rod (122) extends to the inside of the support ring (121), one end of the support rod (122) is fixedly connected with an arc-shaped plate (123), one side of the arc-shaped plate (123) is fixedly connected with an extrusion block (124), and one end of the extrusion block (124) extends to the inner surface of the support ring (121);
one end of the conical block (33) is fixedly connected with a lug (35), one side of the lug (35) is fixedly connected with the outer surface of the rotary rod (31), and a pulley (36) is movably arranged on the outer surface of the lug (35);
a sliding groove (131) is formed in one side, close to the supporting frame (12), of the heat insulation plate (13), a sliding block (132) is movably arranged in the sliding groove (131), and one end of the sliding block (132) is fixedly connected with one end of the supporting rod (122);
the utility model discloses a particle impact device, including recess (351) is seted up to one side of lug (35), the inside fixed mounting of recess (351) has granule pad (352), the inside fixed mounting of lug (35) has cushion (353), the one end of cushion (353) extends to the internal surface of recess (351), the one end fixedly connected with bump (354) of cushion (353).
2. The laminated glass with good heat insulation effect according to claim 1, wherein: the sound insulation device is characterized in that the sound absorption body (21) is fixedly arranged on the outer surface of the sound insulation substrate (2), one end of the sound absorption body (21) extends to the inside of the sound insulation substrate (2), a sound absorption channel (22) is formed in the sound absorption body (21), a sound insulation plate (23) is fixedly connected to the inner wall of the sound insulation substrate (2), and a sound absorption block (24) is fixedly connected to one side of the sound insulation plate (23).
3. The laminated glass with good heat insulation effect according to claim 2, wherein: the outer surface of the sound absorbing body (21) is provided with a first sound absorbing hole (25), and the inside of the sound absorbing channel (22) is fixedly connected with an arc-shaped strip (26).
4. A laminated glass having a good heat insulating effect according to claim 3, wherein: the outer surface of the arc-shaped strip (26) is provided with a second sound absorption hole (261), and sound absorption cotton (262) is fixedly arranged in the second sound absorption hole (261).
CN202210336343.XA 2022-03-31 2022-03-31 Laminated glass with good heat insulation effect Active CN114685066B (en)

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Application Number Priority Date Filing Date Title
CN202210336343.XA CN114685066B (en) 2022-03-31 2022-03-31 Laminated glass with good heat insulation effect

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Application Number Priority Date Filing Date Title
CN202210336343.XA CN114685066B (en) 2022-03-31 2022-03-31 Laminated glass with good heat insulation effect

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CN114685066B true CN114685066B (en) 2023-12-19

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015113264A (en) * 2013-12-12 2015-06-22 セントラル硝子株式会社 Noise insulation multiple glass
CN205241522U (en) * 2015-11-02 2016-05-18 浙江新昌嘉安科技咨询有限公司 Adjustable composite glass
CN108775110A (en) * 2018-07-31 2018-11-09 扬州宇天玻璃有限公司 A kind of NEW TYPE OF COMPOSITE flame resistant glass
CN210215175U (en) * 2019-07-24 2020-03-31 泰州恒润玻璃有限公司 Coated toughened glass
CN111170655A (en) * 2020-01-15 2020-05-19 无锡天和玻璃有限公司 Energy-saving environment-friendly hollow glass
CN213330680U (en) * 2020-08-04 2021-06-01 华辉玻璃(中国)有限公司 Heat and sound insulation hollow glass
CN215804132U (en) * 2021-09-18 2022-02-11 高碑店市中玻玻璃有限公司 Sound-insulation noise-reduction toughened hollow glass

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015113264A (en) * 2013-12-12 2015-06-22 セントラル硝子株式会社 Noise insulation multiple glass
CN205241522U (en) * 2015-11-02 2016-05-18 浙江新昌嘉安科技咨询有限公司 Adjustable composite glass
CN108775110A (en) * 2018-07-31 2018-11-09 扬州宇天玻璃有限公司 A kind of NEW TYPE OF COMPOSITE flame resistant glass
CN210215175U (en) * 2019-07-24 2020-03-31 泰州恒润玻璃有限公司 Coated toughened glass
CN111170655A (en) * 2020-01-15 2020-05-19 无锡天和玻璃有限公司 Energy-saving environment-friendly hollow glass
CN213330680U (en) * 2020-08-04 2021-06-01 华辉玻璃(中国)有限公司 Heat and sound insulation hollow glass
CN215804132U (en) * 2021-09-18 2022-02-11 高碑店市中玻玻璃有限公司 Sound-insulation noise-reduction toughened hollow glass

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