An acrylic water-sealed expansion joint structure
By using MGE plastic pads, EVA flexible edge strips and hollow silicone rubber strips in acrylic glass, combined with silicone sealant, the structural damage and waterproof failure caused by expansion and contraction of acrylic glass during temperature changes are solved, and the structure is damaged and waterproof failure caused by expansion and contraction of acrylic glass during temperature changes is achieved. More efficient water sealing and stress release.
Patent Information
- Application Number
- CN202011542075.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-23
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2040-12-23
AI Technical Summary
The expansion and contraction of traditional acrylic glass during temperature changes leads to structural damage and waterproof failure. Existing sealants cannot effectively cope with the displacement and stress release of large-span acrylic glass.
It adopts a combined structure of MGE plastic pads, EVA flexible edge strips, acrylic strips and hollow silicone rubber strips, combined with silicone sealant, and provides a multi-material combined expansion joint design, increasing expansion space and self-lubricating partitions to ensure sealing effect.
Effectively prevent the damage of acrylic glass during temperature changes, enhance waterproofing performance, avoid the shortage of a single sealant, and improve the connection stability and sealing quality of acrylic and structure.
Smart Images
Figure CN112746679B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to an acrylic technology, in particular to an acrylic water-sealed expansion joint structure. Background Art
[0002] Acrylic materials have many advantages, such as good light transmittance, low density, good weather resistance, and can be polymerized and compounded to increase thickness according to the stress conditions to meet the actual safety requirements. The length and height can be increased by mass polymerization according to the viewing requirements. Landscape walls, oceanarium windows, swimming pools, etc. use acrylic as a transparent material to meet the viewing and entertainment needs of public places. However, in the process of using acrylic glass, the linear expansion coefficient of acrylic is large, and it shrinks or expands violently as the ambient temperature decreases or increases. The traditional single acrylic glass and the installation structure are sealed with sealant. Due to the expansion and contraction limitations of the colloid itself, huge displacement will occur on the large-span acrylic during the heating and cooling process, resulting in structural damage and waterproof damage. Summary of the invention
[0003] In order to improve the above shortcomings, the present invention provides a simple structure.
[0004] It can fully increase the shrinkage space to release stress and meet the acrylic water-tight expansion joint structure that meets the water-tight requirements underwater.
[0005] The technical solution adopted by the present invention is: an acrylic water-closed expansion joint structure, characterized in that it includes an MGE plastic pad, an EVA flexible edge strip, an acrylic strip, and a silicone rubber strip. The MGE plastic pad is padded between the back water side of the acrylic glass and the bottom surface of the installation corner recess, the EVA flexible edge strip is clamped between the side edge of the acrylic glass and the side edge of the installation corner recess, and the EVA flexible edge strip is provided with a silicone rubber strip located between the side edge of the acrylic glass and the side edge of the installation corner recess in the middle part in the water-facing direction of the acrylic glass, and acrylic strips are respectively provided on both sides of the silicone rubber strip, and silicone sealant is filled between the silicone rubber strip and the acrylic strip, between the acrylic strip and the side edge of the acrylic glass, and between the silicone rubber strip and the side edge of the installation corner recess.
[0006] Furthermore, the silicone rubber strip, the acrylic strip, and the silicone sealant are flush with the water-facing surface of the acrylic glass in the direction of the water-facing surface of the acrylic glass.
[0007] Furthermore, the silicone rubber strip is a hollow structure.
[0008] Furthermore, the silicone rubber strip protrudes from the acrylic strip by 10-20 mm on both sides.
[0009] Furthermore, the MGE plastic pad is self-lubricating plastic.
[0010] Furthermore, silicone sealant is provided between the water-repellent side of the acrylic glass, the bottom surface of the installation corner recess, and the MGE plastic pad.
[0011] A large gap is reserved between the back surface of the acrylic glass and the side of the structural installation corner notch, and the gap is filled with EVA flexible material, so that the flexible material can be freely compressed when the acrylic expands and contracts. On the water-facing surface of the acrylic glass, the side of the acrylic glass and the side gap of the structural installation corner notch are connected to the acrylic with hollow silicone rubber and the structure to achieve a completely sealed and water-tight effect. The hollow silicone rubber strip protrudes 10-20mm from the acrylic strip on each side to ensure that the expansion joint can be freely extended when it is pulled. When the acrylic glass structure is deformed, compressed and stretched due to temperature, the expansion joint can be firmly connected. Multiple silicone sealants and hollow silicone rubber strips can provide a large amount of expansion space, which can not only ensure effective waterproofing, but also prevent the acrylic from increasing its own stress and damaging the structure. Self-lubricating MGE plastic is used to block the back surface of the acrylic glass and the bottom surface of the structural installation corner notch. The self-lubricating performance of MGE can effectively help the acrylic not to be affected by temperature displacement friction and increase local damage.
[0012] Compared with the prior art, the advantages of the present invention are: it solves the problem of temperature displacement damage of hard overlap between acrylic and the structural interface, and adds an MGE self-lubricating interlayer, which can effectively ensure that the acrylic is not damaged under the condition of temperature displacement; the acrylic filling gap adopts a multi-material combination expansion joint method to avoid the previous problem that the gap is too fast when a single silicone glue is used to construct the gap, and the silicone glue cannot flow and form by itself; the combination of hollow silicone rubber strips, silicone sealant and acrylic strips greatly increases the plastic forming between acrylic and the structure, and the number of silicone sealants and hollow silicone rubber strips is greater than that of traditional sealing gap ropes. At the same time, the number of silicone sealants and hollow silicone rubber strips in the expansion joint can be increased as needed to improve the expansion performance; the water-tight quality can be greatly improved and the water-tight performance can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the practical structure of the present invention.
[0014] In the figure: installation corner 1, notch 2, MGE plastic pad 3, EVA flexible edge strip 4, silicone rubber strip 5, acrylic strip 6, silicone sealant on the water-facing surface 7, silicone sealant on the water-receiving surface 8, and acrylic glass 9. DETAILED DESCRIPTION
[0015] The invention is further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1As shown: an acrylic closed water expansion joint structure, including an MGE plastic pad 3, an EVA flexible edge strip 4, a silicone rubber strip 5, an acrylic strip 6, a silicone sealant on the water-facing surface 7, and a silicone sealant on the water-receiving surface 8. The MGE plastic pad 3 is padded between the water-receiving side of the acrylic glass 9 and the bottom surface of the recess 2 of the installation corner 1. The MGE plastic pad is a self-lubricating plastic. A silicone sealant 8 on the water-receiving side is also provided between the water-receiving side of the acrylic glass, the bottom surface of the installation corner recess, and the MGE plastic pad. The EVA flexible edge strip 4 is clamped between the side of the acrylic glass and the side of the installation corner recess. The EVA flexible edge strip is provided with a silicone rubber strip 5 located between the side of the acrylic glass and the side of the installation corner recess in the middle of the acrylic glass in the water-facing direction. The silicone rubber strip is a hollow structure. Acrylic strips 6 are respectively provided on both sides of the silicone rubber strip. The silicone rubber strip protrudes from the acrylic strip by 10-20mm on both sides. The silicone rubber strip and the acrylic strip, the acrylic strip and the side of the acrylic glass, and the silicone rubber strip and the side of the installation corner recess are filled with water-facing silicone sealant 7. The silicone rubber strip, the acrylic strip, and the silicone sealant are flush with the water-facing surface of the acrylic glass in the water-facing direction of the acrylic glass.
Claims
1. An acrylic closed water expansion joint structure, characterized in that: It includes an MGE plastic pad, an EVA flexible edge strip, an acrylic strip, and a silicone rubber strip. The MGE plastic pad is installed between the back-water side of the acrylic glass and the bottom surface of the installation corner recess. The EVA flexible edge strip is clamped between the side of the acrylic glass and the side of the installation corner recess. The EVA flexible edge strip is provided with a silicone rubber strip located between the side of the acrylic glass and the side of the installation corner recess in the middle part in the water-facing direction of the acrylic glass. Acrylic strips are provided on both sides of the silicone rubber strip. Silicone sealant is filled between the silicone rubber strip and the acrylic strip, between the acrylic strip and the side of the acrylic glass, and between the silicone rubber strip and the side of the installation corner recess. The silicone rubber strip is a hollow structure; The two sides of the silicone rubber strip protrude from the acrylic strip by 10-20 mm; The MGE plastic pad is a self-lubricating plastic.
2. The acrylic closed water expansion joint structure according to claim 1 is characterized in that: Silicone sealant is also provided between the water-repellent side surface of the acrylic glass, the bottom surface of the installation corner recess, and the MGE plastic pad.
Citation Information
Patent Citations
Acrylic water-closed expansion joint structure
CN215367862U