Composite fireproof glass

By utilizing the unique layered structure of composite fireproof glass, the expansion pressure of the fireproof layer is dispersed by the first grooved glass and the transparent PVB adhesive layer, thus solving the problem of glass breakage at high temperatures and achieving higher structural stability and safety.

CN223533137UActive Publication Date: 2025-11-11WENZHOU PENGBO GLASS CO LTD
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Patent Information

Application Number
CN202423050216.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-11-11
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

Under high-temperature conditions, the pressure exerted on existing fire-resistant glass during the expansion of fire-retardant liquid or adhesive may cause the glass to crack or shatter, posing a potential safety hazard.

Method used

The design employs a combination of first recessed glass and second recessed glass. The second recessed glass is pre-cast with a fireproof layer, and the first recessed glass is bonded to the front of the second recessed glass with a transparent PVB adhesive layer. Together with the window film and frame structure, it disperses the expansion pressure of the fireproof layer and enhances the stability and integrity of the glass.

Benefits of technology

It effectively disperses the pressure generated by the expansion of the fireproof layer, prevents glass breakage, ensures the structural stability and safety of the glass body, provides a more reliable fire barrier, and prevents secondary injuries.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses composite fireproof glass which comprises a glass body and a frame, the glass body comprises first groove glass, second groove glass and a fireproof layer, the first groove glass and the second groove glass are symmetrically distributed in a front-back mode, the fireproof layer is pre-cast and fixed in the second groove glass, and the first groove glass covers the front side of the second groove glass through a transparent PVB adhesive layer in an adhesive mode. The utility model relates to the technical field of glass. According to the composite fireproof glass, the combined design of the first groove glass and the second groove glass is adopted, the second groove glass provides a containing space for pouring and fixing of the fireproof layer, and the first groove glass covers the front side of the second groove glass through the transparent PVB glue layer in a glue fixing mode, so that effective expansion of the fireproof layer at the high temperature is guaranteed; meanwhile, uniform distribution and expansion of the fireproof layer are facilitated, secondary damage possibly caused by glass breakage is effectively avoided, and more reliable guarantee is provided for life and property safety of people.
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Description

Technical Field

[0001] This utility model relates to the field of glass technology, and in particular to a composite fireproof glass. Background Technology

[0002] Fire-resistant glass is typically composed of two or more layers of glass sheets with one or more layers of fire-resistant material, such as transparent fire-retardant liquid or fire-retardant adhesive, between them. These fire-resistant material layers expand and carbonize rapidly at high temperatures, forming a dense fire-resistant layer. This fire-resistant layer can effectively prevent the transmission of flames and high temperatures, thereby protecting the fire-prone areas of the glass from fire damage.

[0003] In the process of realizing this invention, the inventors discovered at least the following problems in the prior art:

[0004] Most current fire retardant liquids are poured between two layers of glass, or the two layers of glass are glued together with fire retardant adhesive. Under high temperature conditions, these fire retardant liquids or adhesives often exert great pressure on the glass during the foaming and expansion process. This pressure may cause the glass to crack or even break. Although this breakage does not affect the basic fireproof effect of the fireproof glass, it constitutes a potential safety hazard from the perspective of overall structural safety. Once the glass breaks, it may cause secondary injuries.

[0005] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology, this utility model proposes a composite fireproof glass, which solves the problems mentioned in the background technology.

[0007] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0008] A composite fire-resistant glass includes a glass body and a frame surrounding the glass body for external protection.

[0009] The glass body includes a first grooved glass and a second grooved glass that are symmetrically distributed in front and back, and a fireproof layer pre-cast and solidified in the second grooved glass. The first grooved glass is covered on the front side of the second grooved glass by a transparent PVB adhesive layer.

[0010] Preferably, the second grooved glass and the first grooved glass have the same structure. The first grooved glass includes a first glass sheet and a second glass sheet laminated to its inner side, as well as a glass window film that is attached to and covers the outer side of the first glass sheet. The second glass sheet has a groove inside. Both the second and first recessed glass panels utilize a double-layer glass design, further enhancing the strength and stability of the recessed glass. The grooves inside the second glass panel serve two purposes: they provide a cavity for the pouring of the fire-resistant layer, while the first recessed glass panel reserves space for the expansion of the fire-resistant layer. Simultaneously, the glass film covering the outer surface of the first glass panel helps disperse the pressure generated by the expansion of the fire-resistant layer, protecting the integrity of the glass structure. Furthermore, during the fire-resistant layer pouring process, the shallow recessed glass design not only allows for a more even distribution of the fire-resistant layer within the grooves, simplifying the pouring process and facilitating its injection, but also, under high-temperature conditions, when the fire-resistant layer expands and carbonizes to form a fire barrier, the grooves better support and fix the fire-resistant layer, ensuring its structural stability.

[0011] Preferably, the frame is assembled and welded from two horizontal frame strips symmetrically distributed vertically and two vertical frame strips symmetrically distributed horizontally and vertically. The frame design ensures the structural stability of the entire composite fireproof glass, making it a unified whole with high structural safety and stability.

[0012] Preferably, the frame also includes two EPDM rubber strips respectively placed on the front and rear outer sides of the frame, with slots on both sides for the EPDM rubber strips to engage. The addition of the EPDM rubber strips further improves the ease of glass installation, helps ensure the sealing and waterproofing of the installation, and also, to a certain extent, isolates heat transfer, enhancing fire resistance.

[0013] The beneficial effects of this utility model are:

[0014] The technical solution of this utility model adopts a combination design of a first grooved glass and a second grooved glass. The second grooved glass provides a space for the casting of the fireproof layer, while the first grooved glass is covered on the front side of the second grooved glass by a transparent PVB adhesive layer. This not only ensures the effective expansion of the fireproof layer under high temperature to form a dense fireproof barrier, but also helps the fireproof layer to be evenly distributed and expanded, effectively dispersing the pressure generated by the expansion of the fireproof layer, protecting the integrity of the glass body, and effectively avoiding secondary injuries that may be caused by glass breakage, thus providing a more reliable guarantee for people's life and property safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the glass body of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first grooved glass of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the frame of this utility model;

[0019] Figure 5 This is a schematic diagram of the installation structure of the EPDM rubber strip of this utility model;

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Glass body;

[0022] 110. First recessed glass; 120. Second recessed glass; 130. Fireproof layer; 140. Transparent PVB adhesive layer;

[0023] 1110, First glass sheet; 1120, Second glass sheet; 1130, Window film; 1140, Groove;

[0024] 200. Framework;

[0025] 210. Horizontal frame strip; 220. Vertical frame strip; 230. Card slot;

[0026] 300. EPDM rubber strips. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 This utility model provides a technical solution: a composite fireproof glass, including a glass body 100 and a frame 200 surrounding the glass body 100 for external protection. The glass body 100 includes a first grooved glass 110 and a second grooved glass 120 symmetrically distributed in front and back, and a fireproof layer 130 pre-cast in the second grooved glass 120. The first grooved glass 110 is covered on the front side of the second grooved glass 120 by a transparent PVB adhesive layer 140.

[0029] Based on the above structural design, the core of this composite fireproof glass lies in its unique layered structure, which aims to improve fire resistance while ensuring the structural stability and safety of the glass body 100 at high temperatures. Firstly, the composite fireproof glass consists of a glass body 100 and a frame 200. The glass body 100 is divided into a first recessed glass 110 and a second recessed glass 120, symmetrically distributed front and rear. The second recessed glass 120 has a pre-cast fireproof layer 130 inside. This fireproof material rapidly expands and carbonizes under high temperatures, forming a dense heat-insulating fire barrier that effectively prevents the transmission of flames and high temperatures. The first recessed glass 110 is tightly bonded to the front of the second recessed glass 120 by a transparent PVB adhesive layer 140. This adhesive layer not only has excellent transparency and adhesion but also maintains a certain degree of elasticity at high temperatures. Simultaneously, in conjunction with the first recessed glass 110, it effectively mitigates the expansion of the fireproof layer 130. The addition of the transparent PVB adhesive layer 140 absorbs and disperses the stress generated by the expansion of the fireproof layer 130, preventing the glass from cracking due to excessive pressure. This composite fireproof glass, through the combination design of the first grooved glass 110 and the second grooved glass 120, provides a space for the casting of the fireproof layer 130. The first grooved glass 110 is covered by the transparent PVB adhesive layer 140 on the front side of the second grooved glass 120. This not only ensures the effective expansion of the fireproof layer 130 under high temperature to form a dense fire barrier, but also helps the fireproof layer 130 to be evenly distributed and expanded, effectively dispersing the pressure generated by the expansion of the fireproof layer 130, protecting the integrity of the glass body 100, and effectively avoiding secondary injuries that may be caused by glass breakage, thus providing a more reliable guarantee for people's lives and property safety.

[0030] Furthermore, the second recessed glass 120 and the first recessed glass 110 have the same structure. The first recessed glass 110 includes a first glass sheet 1110 and a second glass sheet 1120 laminated to its inner side, as well as a glass window film 1130 attached to and covering the outer side of the first glass sheet 1110. The second glass sheet 1120 has a groove 1140 inside.

[0031] Furthermore, the frame 200 is assembled and welded together from two horizontal frame strips 210 that are symmetrically distributed at the top and bottom and two vertical frame strips 220 that are symmetrically distributed at the left and right.

[0032] Furthermore, it also includes two EPDM rubber strips 300 respectively placed on the front and rear outer sides of the frame 200, and the front and rear sides of the frame 200 are provided with slots 230 for the EPDM rubber strips 300 to be engaged.

[0033] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A composite fireproof glass, characterized in that: Includes a glass body (100) and a frame (200) enclosing the glass body (100) for external protection. The glass body (100) includes a first grooved glass (110) and a second grooved glass (120) symmetrically distributed in front and back, and a fireproof layer (130) pre-cast in the second grooved glass (120). The first grooved glass (110) is covered on the front side of the second grooved glass (120) by a transparent PVB adhesive layer (140).

2. The composite fireproof glass according to claim 1, characterized in that: The second grooved glass (120) and the first grooved glass (110) have the same structure. The first grooved glass (110) includes a first glass sheet (1110) and a second glass sheet (1120) composited on its inner side, as well as a glass window film (1130) attached to and covering the outer side of the first glass sheet (1110). The second glass sheet (1120) has a groove (1140) inside.

3. The composite fireproof glass according to claim 1, characterized in that: The frame (200) is assembled and welded together from two horizontal frame strips (210) that are symmetrically distributed at the top and bottom and two vertical frame strips (220) that are symmetrically distributed at the left and right.

4. The composite fireproof glass according to claim 1, characterized in that: It also includes two EPDM rubber strips (300) respectively placed on the front and rear periphery of the frame (200), and the front and rear sides of the frame (200) are provided with slots (230) for the EPDM rubber strips (300) to be engaged.