Fireproof laminated glass

Abstract

The utility model relates to the field of laminated glass, in particular to fireproof laminated glass which comprises a laminated glass body, the laminated glass body comprises a positioning frame, the front end and the rear end of the positioning frame are fixedly connected with PVB films, the ends, away from each other, of the two PVB films are fixedly connected with glass plates, a vacuum cavity is formed between the two PVB films, and fireproof glue is arranged in the vacuum cavity. A mounting frame is arranged on the outer surface of the laminated glass body, protection assemblies are arranged at the four corners of the front end of the mounting frame, each protection assembly comprises a double-thread screw rotationally penetrating through the mounting frame and two protection plates located at the front end and the rear end of the laminated glass body correspondingly, and the four corners of the front end and the rear end of the laminated glass are protected through the protection assemblies; the impact resistance of the laminated glass is effectively improved, and when the four corners of the laminated glass are impacted or the temperature changes, the stress can be dispersed, and the local strength can be enhanced, so that the probability of crack generation is effectively reduced, and the overall safety of the laminated glass is effectively improved.

Description

Technical Field

[0001] This utility model relates to a type of laminated glass, and more particularly to a type of fireproof laminated glass used in the field of laminated glass. Background Technology

[0002] Laminated glass is a type of safety glass consisting of two or more glass sheets sandwiched with a polymer interlayer. It is characterized by high strength and high safety and is commonly used in construction, automotive, aerospace and other fields.

[0003] Chinese Patent Publication No. CN211005144U discloses a fire-resistant laminated glass. This utility model provides a fire-resistant laminated glass with a thinner outermost layer of ordinary clear glass. In the event of a fire, the ordinary clear glass softens at high temperatures, while the fire-retardant liquid on the inner side rapidly absorbs heat and expands, covering the outer surface of the cesium potassium fire-resistant glass to form a fire-resistant layer, thus preventing the spread of fire. Simultaneously, the addition of two thicker layers of cesium potassium fire-resistant glass, which possesses excellent high-temperature fire resistance, slows the rate at which the glass body burns, and prevents indoor and outdoor air convection, thereby achieving a fire-resistant effect.

[0004] However, the above-mentioned patents may also cause the following problems during use: laminated glass is thicker than traditional glass. In a fire, one side of the laminated glass is exposed to high temperature, while the other side may be at a lower temperature. This temperature difference will cause thermal stress to be generated inside the glass. As the thickness of the glass increases, the heat conduction speed slows down, which may lead to a larger temperature difference. The four corners are the stress concentration areas of the laminated glass. Especially when subjected to external impact or temperature change, the stress will be concentrated at the four corners, making the four corners of the laminated glass more prone to cracking, thus causing the laminated glass to shatter. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that, compared with traditional glass, thicker laminated glass may have a greater temperature difference on both sides in a fire, and the four corners are stress concentration areas of laminated glass. In a fire, the four corners of laminated glass are more likely to crack, thus causing the laminated glass to shatter.

[0006] To address the aforementioned problems, this utility model provides a fireproof laminated glass, comprising a laminated glass body, a positioning frame, and PVB films fixedly connected to both ends of the positioning frame. Glass plates are fixedly connected to the ends of the two PVB films that are furthest apart. A vacuum cavity exists between the two PVB films, and fireproof adhesive is provided within the vacuum cavity. An installation frame is provided on the outer surface of the laminated glass body. Protective components are provided at the four corners of the front end of the installation frame. Each protective component includes a double-ended screw that rotates through the installation frame and two protective plates located at the front and rear ends of the laminated glass body, respectively. Toothed plates are threaded onto both ends of the double-ended screw. Positioning blocks are fixedly connected to the ends of the two protective plates that are furthest apart. A rotating rod is fixedly connected to the end of the positioning block near the toothed plate. An installation block is rotatably connected to the end of the rotating rod furthest from the positioning block. Corresponding ends of the two installation blocks are fixedly connected to the front and rear ends of the installation frame, respectively. A gear is fixedly fitted onto the outer surface of the rotating rod, and the gear meshes with the toothed plate.

[0007] In the aforementioned fire-resistant laminated glass, protective components are used to protect the four corners at both ends of the laminated glass, effectively improving its impact resistance. When the four corners of the laminated glass are subjected to impact or temperature changes, stress can be dispersed and local strength enhanced, thereby effectively reducing the probability of crack formation and thus effectively improving the overall safety of the laminated glass.

[0008] As a further improvement of this application, the corresponding ends of the two protective plates are respectively attached to the front and rear ends of the laminated glass body, the longitudinal section of the protective plates is triangular, and the protective plates are located at the corners of the mounting frame.

[0009] As a further improvement to this application, the protective plate includes a shell, the inner cavity of which is fixedly connected with a plurality of compression springs, and the shell is made of an elastic fire-resistant material.

[0010] As a further improvement of this application, the two longitudinally opposite protective components are mirror-distributed, and the outer surface of the laminated glass body is fixedly connected to the inner wall of the mounting frame.

[0011] As another improvement of this application, a limiting plate is provided on the outer side of the toothed plate, and one end of the two limiting plates is fixedly connected to the front and rear ends of the mounting frame respectively, and the toothed plate limiting plate is slidably connected.

[0012] As another improvement of this application, the threads at the front and rear ends of the double-ended screw are turned in opposite directions, and both the front and rear ends of the double-ended screw are fixedly connected with knobs.

[0013] As another improvement of this application, L-shaped receiving grooves are carved at the four corners of the inner wall of the mounting frame, and a pad is fixedly embedded in the receiving groove. The pad is elastic, and the corner of the laminated glass body is fixedly connected to the inner wall of the pad.

[0014] In summary, in practical applications, the laminated glass body is installed inside the mounting frame. Rotating the double-ended screw drives the gear plate to rotate, causing the gear to rotate, which in turn drives the rotating rod to rotate. This causes the protective plate to rotate around the rotating rod until the protective plate is in contact with the surface of the laminated glass body. Multiple protective plates limit and protect the four corners of the laminated glass body. When the four corners of the laminated glass are subjected to impact or temperature changes, stress can be dispersed, local strength can be enhanced, and the probability of crack formation can be effectively reduced, thereby effectively improving the overall safety of the laminated glass. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the first embodiment of this application;

[0016] Figure 2 This is an exploded schematic diagram of the laminated glass body structure according to the first embodiment of this application;

[0017] Figure 3 This is a structural cross-sectional view of the first embodiment of this application;

[0018] Figure 4 This is a schematic diagram of the protective component structure according to the first embodiment of this application;

[0019] Figure 5 This is a schematic diagram of the rotation of the protective plate according to the first embodiment of this application;

[0020] Figure 6 This is a cross-sectional view of the protective structure according to the first embodiment of this application;

[0021] Figure 7 This is a schematic diagram of the mounting frame structure according to the second embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 1. Laminated glass body, 101. Positioning frame, 102. PVB film, 103. Glass plate, 2. Mounting frame, 3. Double-ended screw, 4. Protective plate, 401. Housing, 402. Compression spring, 5. Toothed plate, 6. Positioning block, 7. Rotating rod, 8. Mounting block, 9. Gear, 10. Limiting plate, 11. Knob, 12. Pad. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figure 1 , Figure 2 and Figure 3The illustration shows a fire-resistant laminated glass, comprising a laminated glass body 1, which includes a positioning frame 101. PVB films 102 are fixedly connected to both ends of the positioning frame 101. The PVB films 102 can adhere to a glass plate 103, preventing it from immediately detaching even if the glass plate 103 breaks, thus effectively preventing the glass plate 103 from shattering and scattering. Glass plates 103 are fixedly connected to the ends of two PVB films 102 that are far apart. A vacuum cavity exists between the two PVB films 102, and fire-resistant adhesive is provided within the vacuum cavity. The fire-resistant adhesive effectively improves the fire resistance of the laminated glass body 1. A mounting frame 2 is provided on the outer surface of the laminated glass body 1. Protective components are provided at the four corners of the front end of the mounting frame 2. Two longitudinally opposite protective components are mirror-distributed. The outer surface of the laminated glass body 1 is fixedly connected to the inner wall of the mounting frame 2.

[0027] Figure 3 , Figure 4 , Figure 5 and Figure 6The protective assembly includes a double-ended screw 3 that rotates through the mounting frame 2 and two protective plates 4 located at the front and rear ends of the laminated glass body 1, respectively. Both ends of the double-ended screw 3 are threaded with toothed plates 5. Positioning blocks 6 are fixedly connected to the ends of the two protective plates 4 that are furthest apart. A rotating rod 7 is fixedly connected to the end of the positioning block 6 closest to the toothed plate 5. A mounting block 8 is rotatably connected to the end of the rotating rod 7 furthest from the positioning block 6. Corresponding ends of the two mounting blocks 8 are fixedly connected to the front and rear ends of the mounting frame 2, respectively. A fixed sleeve is fitted on the outer surface of the rotating rod 7. A gear 9 is provided, which meshes with a toothed plate 5. Two protective plates 4 are respectively attached at their corresponding ends to the front and rear ends of the laminated glass body 1. The longitudinal section of the protective plate 4 is triangular, and the protective plate 4 is located at the corner of the mounting frame 2, corresponding to the corner of the laminated glass body 1, thereby protecting the four corners of the laminated glass body 1. The protective plate 4 includes a housing 401, and multiple compression springs 402 are fixedly connected to the inner cavity of the housing 401. The housing 401 is made of elastic fire-resistant material, effectively reducing the pressure on the laminated glass. The four corners of the main body 1 are susceptible to breakage due to external impact or temperature difference, thus effectively improving the safety of the angled glass. A limiting plate 10 is provided on the outer side of the toothed plate 5. One end of each limiting plate 10 is fixedly connected to the front and rear ends of the mounting frame 2, respectively. The limiting plates 10 of the toothed plate 5 are slidably connected. The threads of the double-ended screw 3 at both ends are in opposite directions. A knob 11 is fixedly connected to both ends of the double-ended screw 3. The rotation of the double-ended screw 3 can drive the two toothed plates 5 to move simultaneously towards each other or in opposite directions, causing the gear 9 to... The rotation causes the protective plate 4 to rotate around the rotating rod 7 until the protective plate 4 is in contact with the surface of the laminated glass body 1. The four corners of the laminated glass body 1 are limited and protected by multiple protective plates 4, thereby effectively reducing the probability of cracks and improving the overall safety of the laminated glass. If it is necessary to break the laminated glass during escape, the double-headed screw 3 can be rotated to make the protective plate 4 detach from the laminated glass body 1, exposing the four corners of the laminated glass body 1, and then it can be struck with a safety hammer.

[0028] When using laminated glass, the laminated glass body 1 is installed inside the mounting frame 2. By rotating the double-headed screw 3 through the knob 11, the toothed plate 5 can be moved linearly along the double-headed screw 3, causing the gear 9 to rotate, which in turn drives the rotating rod 7 to rotate. This causes the protective plate 4 to rotate around the rotating rod 7 until the protective plate 4 is in contact with the surface of the laminated glass body 1. The multiple protective plates 4 limit and protect the four corners of the laminated glass body 1. When the four corners of the laminated glass are subjected to impact or temperature changes, stress can be dispersed and local strength can be enhanced, thereby effectively reducing the probability of crack formation and thus effectively improving the overall safety of the laminated glass.

[0029] Second implementation method:

[0030] This embodiment adds a pad 12 to the first embodiment, while the rest remains the same as the first embodiment.

[0031] Figure 7 As shown: L-shaped receiving grooves are carved at the four corners of the inner wall of the mounting frame 2. A pad 12 is fixedly embedded in the receiving groove. The pad 12 is elastic. The corner of the laminated glass body 1 is fixedly connected to the inner wall of the pad 12.

[0032] When installing the laminated glass body 1, the four corners of the laminated glass body 1 are protected by the pad 12, which effectively prevents the four corners of the laminated glass body 1 from having a hard collision with the mounting frame 2 during the installation process, thus preventing the laminated glass body 1 from being damaged and effectively improving the safety of the laminated glass body 1.

[0033] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A fire-resistant laminated glass, comprising a laminated glass body (1), characterized in that: The laminated glass body (1) includes a positioning frame (101), and PVB films (102) are fixedly connected to both the front and rear ends of the positioning frame (101). Glass plates (103) are fixedly connected to the ends of the two PVB films (102) that are far apart. A vacuum cavity is formed between the two PVB films (102), and fireproof adhesive is provided in the vacuum cavity. An installation frame (2) is provided on the outer surface of the laminated glass body (1), and protective components are provided at the four corners of the front end of the installation frame (2). The protective assembly includes a double-ended screw (3) that rotates through the mounting frame (2) and two protective plates (4) located at the front and rear ends of the laminated glass body (1). Both ends of the double-ended screw (3) are threaded with toothed plates (5). The ends of the two protective plates (4) that are far apart are fixedly connected to positioning blocks (6). The end of the positioning block (6) that is close to the toothed plate (5) is fixedly connected to a rotating rod (7). The end of the rotating rod (7) that is far away from the positioning block (6) is rotatably connected to a mounting block (8). The corresponding ends of the two mounting blocks (8) are fixedly connected to the front and rear ends of the mounting frame (2). The outer surface of the rotating rod (7) is fixedly fitted with a gear (9), which meshes with the toothed plate (5).

2. The fire-resistant laminated glass according to claim 1, characterized in that: One end of each of the two protective plates (4) is attached to the front and rear ends of the laminated glass body (1). The longitudinal section of the protective plate (4) is triangular, and the protective plate (4) is located at the corner of the mounting frame (2).

3. The fire-resistant laminated glass according to claim 2, characterized in that: The protective plate (4) includes a shell (401), and a plurality of compression springs (402) are fixedly connected to the inner cavity of the shell (401). The shell (401) is made of an elastic fireproof material.

4. The fire-resistant laminated glass according to claim 1, characterized in that: The two longitudinally opposite protective components are arranged in a mirror image, and the outer surface of the laminated glass body (1) is fixedly connected to the inner wall of the mounting frame (2).

5. The fire-resistant laminated glass according to claim 1, characterized in that: The toothed plate (5) is provided with a limiting plate (10) on its outer side. One end of each of the two limiting plates (10) is fixedly connected to the front and rear ends of the mounting frame (2). The toothed plate (5) and the limiting plate (10) are slidably connected.

6. The fire-resistant laminated glass according to claim 1, characterized in that: The threads at the front and rear ends of the double-ended screw (3) are in opposite directions, and knobs (11) are fixedly connected to both the front and rear ends of the double-ended screw (3).

7. The fire-resistant laminated glass according to claim 1, characterized in that: The four corners of the inner wall of the mounting frame (2) are all carved with L-shaped receiving grooves. A pad (12) is fixedly embedded in the receiving groove. The pad (12) is elastic. The corner of the laminated glass body (1) is fixedly connected to the inner wall of the pad (12).

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