Fireproof window glass edge fireproof sealing structure

Abstract

The utility model relates to fireproof window technical field, concretely is a kind of fireproof window glass edge fireproof sealing structure, including fireproof glass and window frame, the inside of window frame is equipped with supporting step, the fireproof glass is placed on supporting step, the outer periphery between fireproof glass and window frame forms sealed cavity, wave elastic pad, trapezoidal buffer strip and expansion sealing strip are sequentially arranged from inside to outside in this sealed cavity, and the window frame is fixed with multiple detachable pressing blocks by screw, the outer end of detachable pressing block is equipped with tongue depressor, the tongue depressor is inserted into sealed cavity and presses the outside of expansion sealing strip tightly.This fireproof window glass edge fireproof sealing structure can effectively absorb thermal expansion stress, prevent sealing failure under high temperature, improve the fire resistance integrity and long-term reliability of fireproof window.

Description

Technical Field

[0001] This utility model relates to the field of fireproof window technology, specifically a fireproof sealing structure for the edge of fireproof window glass. Background Technology

[0002] With the increasing demands for safety performance in modern buildings, fire-resistant windows, as crucial components for preventing the spread of fire and ensuring the evacuation of personnel during a fire, have been widely used in various public and civil buildings. The core function of fire-resistant windows relies not only on high-temperature resistant fire-resistant glass, but also on their surrounding sealing structure, which directly affects the overall fire resistance integrity and thermal insulation performance of the window.

[0003] Currently, most fire-resistant windows use a single fire-resistant sealing strip or silicone sealant to seal the edges between the glass and the frame. While this structure can provide a certain degree of sealing at room temperature, in high-temperature fire environments, the glass expands due to heat, while the metal frame has a different coefficient of expansion. This results in uneven stress changes between the two, causing the sealing material to crack or delaminate. High-temperature smoke and flames can then spread to non-fire areas through these tiny gaps, significantly reducing the actual protective effect of the fire-resistant window. At the same time, traditional sealing structures are also prone to aging and failure due to repeated thermal expansion and contraction during long-term use, affecting the overall durability and reliability of the fire-resistant window. Utility Model Content

[0004] The purpose of this utility model is to provide a fireproof sealing structure for the edge of fireproof window glass, so as to solve the problem mentioned in the background art that the sealing material of current fireproof windows is prone to cracking and delamination due to the inconsistent thermal expansion between the glass and the window frame in high-temperature fire environments, thereby causing a decline in fireproof performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fireproof sealing structure for the edge of a fireproof window glass, comprising fireproof glass and a window frame, wherein a supporting step is provided on the inner side of the window frame, the fireproof glass is placed on the supporting step, and a sealing cavity is formed between the outer periphery of the fireproof glass and the window frame, wherein a wave-shaped elastic pad, a trapezoidal buffer strip and an expansion sealing strip are arranged sequentially from the inside to the outside of the sealing cavity, and multiple detachable pressure blocks are fixed on the window frame by screws, wherein the outer end of each detachable pressure block is provided with a pressure tongue, the pressure tongue extending into the sealing cavity and pressing the outer side of the expansion sealing strip.

[0006] Preferably, the waveform elastic pad is composed of five arc-shaped silicone rubber units spliced ​​together. Each arc-shaped silicone rubber unit has an arc length of 20mm, a radius of curvature of 10mm, and a gap of 0.8mm between adjacent units.

[0007] Preferably, the trapezoidal buffer strip has an isosceles trapezoid with an upper base of 3mm, a lower base of 5mm, and a height of 4mm, and both inclined surfaces are provided with annular grooves with a spacing of 2mm and a depth of 0.8mm.

[0008] Preferably, the inner side of the expansion sealing strip is provided with an inverted trapezoidal groove that matches the shape of the trapezoidal buffer strip, and the two are connected by an interference fit.

[0009] Preferably, the detachable pressure block is an L-shaped stainless steel component, the vertical section of which is fixed to the outside of the window frame by two M4 countersunk screws, and the length of the pressure tongue is 6mm.

[0010] Preferably, the surface of the supporting step is adhered with an anti-slip composite pad with a thickness of 0.3 mm. The anti-slip composite pad is made of ceramic fiber and high-temperature resistant silicone resin, and the surface is provided with staggered diamond-shaped embossed patterns.

[0011] Compared with existing technologies, the beneficial effects of this utility model are: the fireproof sealing structure at the edge of the fireproof window glass can effectively absorb thermal expansion stress, prevent sealing failure at high temperatures, and improve the fire resistance integrity and long-term reliability of the fireproof window. This fireproof sealing structure at the edge of the fireproof window glass absorbs the thermal expansion difference between the glass and the window frame through the wave structure design of the corrugated elastic pad, combined with the deformation buffering of the trapezoidal buffer strip and the high-temperature expansion sealing of the expansion sealing strip, and further enhanced by the continuous clamping force provided by the detachable pressure block and pressure tongue, forming a multi-layered synergistic protection that significantly enhances the sealing stability and structural durability under high-temperature conditions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a fireproof sealing structure for the edge of a fireproof window glass according to the present invention; Figure 2 This is a partial structural diagram of a window frame according to the present invention, which describes a fireproof sealing structure for the edge of a fireproof window glass. Figure 3 This is a schematic diagram of the structure of a fireproof sealing structure for the edge of a fireproof window glass, which consists of a wave-shaped elastic pad, a trapezoidal buffer strip, and an expansion sealing strip connected in sequence.

[0013] In the diagram: 1. Fireproof glass; 2. Window frame; 3. Supporting step; 4. Wave-shaped elastic pad; 5. Trapezoidal buffer strip; 6. Expansion sealing strip; 7. Removable pressure block; 8. Pressure tongue. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-3This utility model provides a technical solution: a fireproof sealing structure for the edge of a fireproof window glass, including fireproof glass 1 and a window frame 2. The inner side of the window frame 2 is provided with a supporting step 3, and the fireproof glass 1 is placed on the supporting step 3. A sealing cavity is formed between the outer periphery of the fireproof glass 1 and the window frame 2. Within this sealing cavity, a wave-shaped elastic pad 4, a trapezoidal buffer strip 5, and an expansion sealing strip 6 are arranged sequentially from the inside out. Multiple removable pressure blocks 7 are fixed to the window frame 2 by screws. Each removable pressure block 7 is located within a uniformly spaced rectangular recess on the inner wall of the sealing cavity formed between the outer periphery of the fireproof glass 1 and the window frame 2. The outer end of each removable pressure block 7 is provided with a pressure tongue 8. The pressure tongue 8 and the removable pressure block 7 are connected... The disassembly of pressure block 7 results in a single unit. Pressure tongue 8 extends into the sealing cavity and presses against the outer side of expansion sealing strip 6. The crests of the corrugated elastic pad 4 adhere to the sidewall of the fireproof glass 1, and the troughs adhere to the inner sidewall of the supporting step 3. In the event of a fire, when the temperature rises sharply, the fireproof glass 1 expands and exerts pressure outward. This pressure is first transmitted to the corrugated elastic pad 4, whose unique wave-shaped structure can compress and deform wave by wave, effectively absorbing the uneven stress caused by the difference in thermal expansion coefficients between the glass and the window frame 2, avoiding structural damage caused by stress concentration. Simultaneously, the trapezoidal buffer strip 5, with its trapezoidal cross-section and surface annular groove, further buffers deformation, ensuring... The internal sealing is stable, while the outer expansion sealing strip 6 rapidly expands at high temperatures to fill the sealing cavity and surrounding gaps. At this time, the detachable pressure block 7 continuously applies pre-tightening pressure to the expansion sealing strip 6 through the pressure tongue 8, ensuring that it maintains stable positioning and fit during the expansion process, preventing leakage channels due to uneven expansion or detachment. Thus, through the coordinated operation of multiple structures, the integrity and continuous effectiveness of the sealing structure under high-temperature conditions are achieved. This solves the technical problems in the prior art, such as cracking and delamination caused by the inability of a single sealing material to cope with thermal stress changes, easy penetration of the sealing failure area by high-temperature flue gas and flames, and poor durability under long-term thermal cycling. The shaped elastic pad 4 is composed of five arc-shaped silicone rubber units spliced ​​together. Each arc-shaped silicone rubber unit has an arc length of 20mm and a radius of curvature of 10mm. There is a gap of 0.8mm between adjacent units. When this structure is subjected to thermal expansion and compression by the fireproof glass 1, each arc-shaped silicone rubber unit of the wave elastic pad 4 can independently deform slightly. The gap between adjacent units provides compression space, avoids stress concentration, and makes the overall force more uniform, significantly improving the stability and long-term reliability of the buffer. The trapezoidal buffer strip 5 has an isosceles trapezoid with an upper base of 3mm, a lower base of 5mm, and a height of 4mm. There are 2mm spacing and 0.5mm depth on both inclined surfaces.An 8mm annular groove is used in this structure. The trapezoidal cross-section forms a stable fit with the window frame 2 and the expansion sealing strip 6. The annular groove on the trapezoidal buffer strip 5 enhances the elastic deformation capacity of the inclined surface, effectively buffering lateral stress during thermal expansion and contraction, preventing the trapezoidal buffer strip 5 from cracking or dislodging due to compression, and improving the overall stability of the sealing structure. The inner side of the expansion sealing strip 6 has an inverted trapezoidal groove that matches the shape of the trapezoidal buffer strip 5. The two are connected by an interference fit. This structure, through the interference fit between the expansion sealing strip 6 and the trapezoidal buffer strip 5, enhances the connection stability between the expansion sealing strip 6 and the inner sealing structure, preventing misalignment or detachment during high-temperature expansion, ensuring continuous and effective adhesion between sealing layers, and improving the overall sealing reliability. The detachable pressure block 7 is an L-shaped stainless steel structure. The vertical section of the component is fixed to the outside of the window frame 2 by two M4 countersunk screws, and the length of the pressure tongue 8 is 6mm. This structure provides stable support for the pressure tongue 8 through the mechanical fixing method of the detachable pressure block 7. At the same time, the pressure tongue 8 continuously presses against the expansion sealing strip 6 to ensure that it remains in controlled fit during high-temperature expansion, without warping or failure. The surface of the supporting step 3 is adhered with a 0.3mm thick anti-slip composite pad. This anti-slip composite pad is made of ceramic fiber and high-temperature resistant silicone resin, and its surface has staggered diamond-shaped embossed patterns. This structure supports the step 3 by using the high-friction diamond-shaped embossed patterns of the anti-slip composite pad and the high-temperature resistant material properties to effectively prevent the fireproof glass 1 from slipping under thermal expansion and contraction or vibration. At the same time, the thin-layer design does not affect the assembly gap, ensuring stable glass support and no additional stress concentration.

[0016] Working principle: When using this fireproof window glass edge fireproof sealing structure, firstly, the anti-slip composite pad on the supporting step 3 is brought into contact with and positioned on the bottom surface of the fireproof glass 1. Then, the corrugated elastic pad 4 is attached to the side of the fireproof glass 1, and the trapezoidal buffer strip 5 and the expansion sealing strip 6 are sequentially embedded into the sealing cavity formed by the window frame 2 and the fireproof glass 1, so that the inverted trapezoidal groove of the expansion sealing strip 6 and the trapezoidal buffer strip 5 form an interference fit. Then, the detachable pressure block 7 is fixed to the window frame 2 with screws, so that its pressure tongue 8 presses the outside of the expansion sealing strip 6, completing the overall assembly. When a fire occurs, the ambient temperature continues to rise, and the fireproof glass 1 begins to expand due to heat, pushing the corrugated elastic pad 4 to undergo wave-shaped compression deformation. At the same time, the trapezoidal buffer strip 5 undergoes elastic deformation under lateral pressure, and the expansion sealing strip 6 expands rapidly under high temperature to fill the gap. The pressure tongue 8 remains in a continuously pressed state as it expands. The entire sealing structure completes an adaptive sealing response under the action of the thermal field, thereby completing a series of tasks.

[0017] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fireproof sealing structure for the edge of a fireproof window glass, comprising fireproof glass (1) and a window frame (2), characterized in that: The inner side of the window frame (2) is provided with a support step (3), and the fireproof glass (1) is placed on the support step (3). A sealed cavity is formed between the outer periphery of the fireproof glass (1) and the window frame (2). The sealed cavity is provided with a wave elastic pad (4), a trapezoidal buffer strip (5) and an expansion sealing strip (6) in sequence from the inside to the outside. The window frame (2) is fixed with multiple detachable pressure blocks (7) by screws. The outer end of the detachable pressure block (7) is provided with a pressure tongue (8). The pressure tongue (8) extends into the sealed cavity and presses the outer side of the expansion sealing strip (6).

2. The fireproof sealing structure for the edge of a fireproof window glass according to claim 1, characterized in that: The waveform elastic pad (4) is composed of five arc-shaped silicone rubber units spliced ​​together. Each arc-shaped silicone rubber unit has an arc length of 20mm and a radius of curvature of 10mm. There is a gap of 0.8mm between adjacent units.

3. The fireproof sealing structure for the edge of a fireproof window glass according to claim 1, characterized in that: The trapezoidal buffer strip (5) has an isosceles trapezoid with an upper base of 3mm, a lower base of 5mm, and a height of 4mm. Both of its inclined surfaces are provided with annular grooves with a spacing of 2mm and a depth of 0.8mm.

4. The fireproof sealing structure for the edge of a fireproof window glass according to claim 1, characterized in that: The inner side of the expansion sealing strip (6) is provided with an inverted trapezoidal groove that matches the shape of the trapezoidal buffer strip (5), and the two are connected by interference fit.

5. The fireproof sealing structure for the edge of a fireproof window glass according to claim 1, characterized in that: The detachable pressure block (7) is an L-shaped stainless steel component, the vertical section of which is fixed to the outside of the window frame (2) by two M4 countersunk screws, and the pressure tongue (8) is 6mm long.

6. The fireproof sealing structure for the edge of a fireproof window glass according to claim 1, characterized in that: The surface of the supporting step (3) is adhered with an anti-slip composite pad with a thickness of 0.3 mm. The anti-slip composite pad is made of ceramic fiber and high temperature resistant silicone resin, and the surface is provided with staggered diamond-shaped convex patterns.

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