Laminated glass
By setting a gap on the film of the laminated glass, the problem that the existing laminated glass cannot be opened by the window breaker is solved, and an escape passage that can be easily opened in an emergency situation is realized.
Patent Information
- Application Number
- CN202421235916.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
After the existing laminated glass is broken by the window breaker, the glass layer is still intact due to the strength of the PVB glue, and the window cannot be opened to escape.
A laminated glass is designed, and the film is divided into multiple areas, with gaps between the areas. When the glass is broken, the gaps on the film can be opened to form a channel for escape.
By setting a gap on the film of the laminated glass, it can be easily opened after the glass is broken, forming enough channels to accommodate adults, thus solving the problem that the laminated glass cannot be opened by the window breaker and improving the feasibility of the emergency escape passage.
Smart Images
Figure CN222571792U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to vehicle or building glass, in particular to laminated glass. Background Art
[0002] Laminated glass is a high-grade safety glass made by sandwiching PVB film between two or more layers of straight glass (or hot-bent glass) under high pressure. It has the characteristics of transparency, high mechanical strength, UV protection, heat insulation, sound insulation, bulletproof, and riot resistance. When the glass is broken by impact, the fragments are stuck by PVB and are not easy to hurt people. Only radial cracks are formed, maintaining the original shape and visibility, and can continue to be used within a certain period of time.
[0003] When a vehicle catches fire or falls into water, the door cannot be opened, resulting in casualties. Window breakers have now become a standing or standard safety equipment for vehicles, but for vehicles equipped with laminated glass, the strength of the glass and window breaking have become a paradox. Currently, window breakers with an impact force of no less than 1100N can only break the glass layer of laminated glass, but because a whole piece of high-strength PVB glue is sandwiched in the middle, the PVB glue sticks the broken glass together, so the entire window is still intact and people still cannot escape by opening the window glass. Utility Model Content
[0004] The utility model aims to provide a laminated glass which can be easily opened by using a window breaker.
[0005] To achieve the above object, the utility model provides a laminated glass, comprising two sheets of glass and a film sandwiched between the two sheets of glass, wherein the film is provided with at least two regions, a gap is provided between the films of two adjacent regions, and the film of at least one region can be opened from the gap to form a passage after the glass is broken. The passage formed after all the gaps are broken can accommodate an adult to pass through.
[0006] A non-stick filling material is arranged in the gap.
[0007] The gap is one of a closed frame, a ring, or a polygon.
[0008] The gap is one of a semi-closed frame, a ring, or a polygon.
[0009] The gap is at least three radial lines
[0010] Connecting ribs are arranged between the gaps.
[0011] The gap is composed of a plurality of circles connected in series.
[0012] The two sides of the gap are in the form of sawtooth or wavy lines, and the two sides are connected at a point.
[0013] After adopting the above scheme, gaps are opened in the film. When the window breaker breaks the glass, gaps are opened on the film (the connecting ribs are thin and easy to break). The films in different areas can be easily pushed away to form passages for people to pass through and escape. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 This is a schematic diagram of a film in the first embodiment of the utility model;
[0016] Figure 3 This is a schematic diagram of a film according to a second embodiment of the utility model;
[0017] Figure 4 This is a schematic diagram of a film according to a third embodiment of the utility model;
[0018] Figure 5 This is a schematic diagram of a film according to a fourth embodiment of the utility model;
[0019] Figure 6 It is a schematic diagram of the film gap edge structure of the utility model.
[0020] Description of labels:
[0021] 1. Glass; 2. PVB film; 21. 21a. 21b. 21c. First area; 22. 22a. 22b. 22c. Second area; 23. 23a. 23b. 23c. Gap; 24. 24a. 24b. 24c. Connecting ribs. DETAILED DESCRIPTION
[0022] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation modes and the accompanying drawings.
[0023] See also Figure 1 The utility model is a sandwich structure of two layers of glass 1 sandwiching a layer of PCB film 2 (or other films), such as Figure 2As shown in the figure, a square-shaped gap 23 is provided on the PCB film 2. It can also be a closed-loop gap such as a circular or polygonal shape. The gap 23 divides the entire film into two regions, namely the inner first region 21 and the outer second region 22 (it can also be multiple regions, such as the Chinese character "tian" shape, etc.). The width of the gap 23 ensures that the laminated glass will not re-bond during hot pressing. To facilitate the film in the second region from falling off and the overall spacing from deforming when the film is laid on the glass, several connecting ribs 24 are provided in the gap 23. To avoid generating air bubbles during processing, the gap 23 is filled with a non-sticky material (its main function is to fill the space of the gap 23 so that no air bubbles will be generated during the hot pressing of the glass, and this material can be transparent and non-sticky). When an emergency occurs and it is necessary to break the window, use a window breaker to break the inner and outer layers of glass. The broken glass still adheres to the film. However, due to the existence of the gap 23 between the film in the second region 22 and the film in the first region 21, there is no adhesion between them. The connecting ribs 24 of the gap 23 are relatively thin and only require a small force to break. Push the second region 22 outwards, and this part of the film and the glass adhering to the film can be pushed outwards and completely fall off, forming a passage through which people can pass for easy escape.
[0024] As Figure 3 shown in the figure, which is another embodiment of the present utility model. The gap 23a between the first region 21a and the second region 22a is non-closed-loop, and one side or a part is connected together. The gap 23a is provided with several connecting ribs 24a. When in use, push the second region 22a outwards. Before this part of the film and the glass adhering to the film are pushed outwards, they do not completely fall off and are still connected to the first region 21a.
[0025] As Figure 4 shown in the figure, which is the third embodiment of the present utility model. A cross-shaped gap 23b is provided on the film. A connecting rib 24b is provided in the middle of the cross-shaped gap. Such a gap can be at least three spoke-shaped gaps, and the gap can be a line or a curve. When in use, the upper first region 21b and the second region 22b and the lower third and fourth regions are all pushed outwards to form an escape passage.
[0026] As Figure 5 shown in the figure, which is the fourth embodiment of the present utility model. The gap 23C surrounded by multiple circles divides the film into the first region 21c and the second region 22c. The connection between the circles is the connecting rib 24c.
[0027] As Figure 6 shown in the figure, which is a schematic diagram of the edge structure of the gap of the present utility model. The gap edge is a serrated edge surrounding the gap 23e, and the serrated tips are connected relatively to form the connecting rib 24e. Since the connecting rib 24e is a point connection, it can be easily broken when in use. The edge of the present utility model can also be a wavy shape with wave peaks opposite to form point connections.
[0028] The utility model changes the inherent thinking mode of manufacturing the conventional film which is a whole piece as large as the glass to increase strength and quietness. The utility model changes the original thinking mode and divides the film into different areas with gaps without glue between the areas. When escaping, after the glass is completely broken, the films in different areas can be opened at the gaps to form an escape passage. Therefore, the conventional cognition of dividing the film is completely changed.
[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A laminated glass, comprising two sheets of glass and a film sandwiched between the two sheets of glass, characterized in that: The film is provided with at least two areas, a gap is provided between the films of two adjacent areas, and the film of at least one area can be opened from the gap to form a channel after the glass is broken.
2. The laminated glass according to claim 1, characterized in that; The film in all areas is cut at the gaps to form an escape passage for adults.
3. The laminated glass according to claim 1, characterized in that: A transparent non-stick filling material is arranged in the gap.
4. The laminated glass according to claim 1, characterized in that; The gap is one of a closed frame, a ring, or a polygon.
5. The laminated glass according to claim 1, characterized in that; The gap is one of a semi-closed frame, a ring, or a polygon.
6. The laminated glass according to claim 1, characterized in that; The gap is at least three radial lines.
7. The laminated glass according to claim 1, characterized in that; Connecting ribs are arranged between the gaps.
8. The laminated glass according to claim 1, characterized in that; The gap is composed of a plurality of circles connected in series.
9. The laminated glass according to claim 1, characterized in that; The gap has a serrated edge.