Heat-insulating and fire-resistant structure

Abstract

To provide a heat insulating and fireproof structure that effectively prevents wind leakage at connection points by the sealing action of the sealed structure. [Solution] The heat-insulating and fire-resistant structure includes fire-resistant insulation cotton 1 attached to the flame surface of the building structure 6 to be protected from fire, and an outer fireproof board 2 attached to one side of the fire surface of the fire-resistant insulation cotton, the fire-resistant insulation cotton is formed by joining a number of fire-resistant insulation cotton sheets, and a sealing structure 3 is provided at the connection points of adjacent fire-resistant insulation cotton sheets. An inner fireproof board 4 is further included on the opposite side of the building structure to the flame, which serves the function of fire prevention, the fire-resistant insulation cotton can effectively insulate, prevent structural damage caused by the building structure's temperature rising too quickly, improve the overall fireproof effect, and the sealing function of the sealing structure can effectively prevent wind leakage at the connection points, enhancing the fire-resistant and insulation effect.

Description

[Technical field]

[0001] The present invention relates to the technical field of architectural fire protection structures, and more particularly to thermal insulation and fire protection structures. [Background technology]

[0002] In modern architecture, external fire protection of walls is essential, and the fire resistance of steel structural walls is relatively low. Therefore, fire protection of steel structures is essential. Conventional fire protection methods for steel structures generally include the following three types. First, applying fireproof paint to the surface of the steel structure, which relies on the quality and construction quality of the fireproof paint itself, and the fire protection effect is unreliable. Second, covering the surface of the steel structure with a single layer of fireproof board, and the fire protection effect also relies on the quality of the fireproof board. Third, covering the steel structure with concrete, etc., which is time-consuming and labor-intensive. In addition, all of the above methods cannot achieve effective insulation, and the temperature rise rate of the structural surface is fast, which is likely to cause the collapse of the wall, thereby compromising the safety of life and property. Although the insulation effect can be achieved by adding insulation cotton to the steel structure, due to the size limitation of the insulation cotton, multiple insulation cottons are required, and when multiple insulation cottons are used, gaps will generally occur at the connection points. When the fireproof board is burned and damaged, the flames will pass through the gaps and directly contact the building structure, enhancing the fire power and causing rapid damage to the building structure.

[0003] Therefore, how to provide a heat insulating and fireproof structure having dual functions of heat insulation and fireproofing and high fireproofing effect is a technical problem that must be solved as soon as possible by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention aims to provide a heat-insulating fireproof structure with high fireproofing effect.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions.

[0006] The heat insulating and fireproof structure includes a fireproof insulation cotton attached to a fire surface of a building structure to be fireproofed, and an outer fireproof board attached to one side of the fire surface of the fireproof insulation cotton,

[0007] The fireproof insulating cotton is formed by joining a plurality of fireproof insulating cotton sheets, and a sealing structure is provided at the joints of adjacent fireproof insulating cotton sheets.

[0008] The present invention achieves the following beneficial effects: the fireproof board plays a fire-preventing role, and the fireproof insulation cotton can effectively insulate, preventing damage to the structure caused by the temperature rise of the building structure too quickly, and improving the overall fireproof effect. At the connection points between the fireproof insulation cotton sheets, gaps generally occur, and when the fireproof board burns and is damaged, the flames pass through the gaps and directly contact the building structure, enhancing the fire power and causing rapid damage to the building structure, while the sealing function of the sealed structure can effectively prevent wind leakage at the connection points, and enhance the fireproof insulation effect.

[0009] It further includes an inner fireproof plate attached to the opposite side of the building structure from the fire.

[0010] Furthermore, the thickness of the fireproof and heat insulating cotton sheet is 12 mm.

[0011] Further, the fire-resistant insulation cotton sheet is fixed to the fire front of the building structure by a setting screw, the setting screw includes a nut, a rod, a threaded rod and a positioning ring, the nut, the rod and the threaded rod are connected in sequence, the positioning ring is fixed to the outer wall of one end of the rod close to the threaded rod, the fire-resistant insulation cotton sheet can be locked between the positioning ring and the nut, and the distance between the nut and the positioning ring is equal to the thickness of the fire-resistant insulation cotton sheet.

[0012] Furthermore, the radial width of the positioning ring is 0.5 mm-1 mm.

[0013] Furthermore, the fire-resistant insulating cotton sheets are butt-jointed, the sealing structure is a fire-resistant caulking adhesive filling layer, and the fire-resistant caulking adhesive filling layer is filled into the joints.

[0014] Furthermore, the fire-resistant insulating cotton sheets are butt-jointed, and the sealing structure is an insulating windproof strip, which is arranged longitudinally along the longitudinal direction of the joint and fixed at a location corresponding to the joint on the side closer to the outer fireproof board, and the insulating windproof strip abuts against the two adjacent fire-resistant insulating cotton sheets on both sides along the width direction of the joint.

[0015] Furthermore, the distance between both side edges of the heat insulating windbreak strip along its width direction and the seam is 50 mm or more.

[0016] Furthermore, two adjacent fire-resistant insulating cotton sheets are joined with an overlapping connection, and an overlapping connection portion is provided at the joint, and the overlapping connection portion is fixed to the joint portion on the side closer to the outer fireproof board, and one end of the overlapping connection portion is integrally connected to one of the fire-resistant insulating cotton sheets, and the other end extends in a direction approaching the other fire-resistant insulating cotton sheet so as to be overlapping connected to the other fire-resistant insulating cotton sheet.

[0017] Furthermore, the width of the lap joint is 30 mm or more.

[0018] As can be seen from the above technical solution, compared with the prior art, the present invention provides a heat-insulating fireproof structure that can realize the dual protection of fire prevention and heat insulation, and effectively enhances the fire prevention effect of the structure to be fire-protected. By providing a sealing structure, the joints of the fireproof insulation cotton sheet can be sealed, and the impact of wind leakage at the joints on the fire prevention effect can be prevented. [Brief description of the drawings]

[0019] In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings necessary to be used in the description of the embodiments or the prior art will be briefly described below. Obviously, the drawings in the following description are only embodiments of the present invention, and those skilled in the art can obtain other drawings based on the drawings provided without any creative work.

[0020] [Figure 1] FIG. 2 is a structural schematic diagram of a heat-insulating and fire-resistant structure according to the first embodiment of the present invention. [Diagram 2] FIG. 2 is an enlarged schematic diagram of a portion A in FIG. [Diagram 3] FIG. 2 is a structural schematic diagram of a heat-insulating and fire-resistant structure according to a second embodiment of the present invention. [Figure 4] FIG. 4 is a structural schematic diagram of a heat-insulating and fire-resistant structure according to a third embodiment of the present invention. [Diagram 5] FIG. 11 is a structural schematic diagram of a heat-insulating and fire-resistant structure according to Example 4 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor all belong to the scope of protection of the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "attached", "coupled", "connected", "fixed" and the like should be understood in a broad sense, for example, may be a fixed connection, a detachable connection, or an integral connection, may be a mechanical connection, may be an electrical connection, may be a direct connection, may be an indirect connection through an intermediate medium, may be a communication inside two elements, or may be an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.

[0023] Example 1: Referring to Figures 1 and 5, an embodiment of the present invention discloses an insulating and fireproof structure, which includes a fireproof insulating cotton 1 attached to the flame surface of the building structure 6 to be fire-protected, and an outer fireproof panel 2 attached to one side of the flame surface of the fireproof insulating cotton 1, where the fireproof insulating cotton 1 is formed by joining multiple fireproof insulating cotton sheets, and a sealing structure 3 is provided at the connection point of adjacent fireproof insulating cotton sheets.

[0024] The fireproof board plays a fire-preventing role, and the fireproof insulation cotton 1 can effectively insulate, prevent structural damage caused by the rapid temperature rise of the building structure 6, and improve the overall fireproof effect. Gaps generally occur at the connection points between the fireproof insulation cotton sheets, and when the fireproof board burns and is damaged, the flames pass through the gaps and directly contact the building structure, enhancing the fire power and causing rapid damage to the building structure 6; the sealing action of the sealing structure 3 can effectively prevent wind leakage at the connection points and enhance the fireproof insulation effect.

[0025] In actual use, the architectural structure 6 may be an exterior wall, a steel structural support frame, a structural column, or other structure. When the architectural structure 6 is an overall structure with a large area such as an exterior wall, the fireproof insulation cotton 1 and the outer fireproof board 2 may be installed in order on the flame surface of the wall. When the architectural structure 6 is a steel structural support frame or a structural column, the inner fireproof board 4 should be installed on the opposite side to the flame, which serves to seal the structure and improves aesthetics, while there are gaps between each bracket of the support frame, which allows an air passage between the flame surface and the opposite side to propel the fire when a fire occurs. Therefore, the inner fireproof board 4 should also be installed on the opposite side to the flame to prevent the air passage inside the structure from communicating with the outside air, which is advantageous in improving the fire resistance of the architectural structure and increasing the safety factor of the architectural structure.

[0026] Preferably, the thickness of the fireproof heat insulation cotton sheet is 12mm. The fireproof heat insulation effect is greatly affected to some extent by the thickness of the fireproof heat insulation cotton sheet, and if the thickness of the fireproof heat insulation cotton sheet is small, the heat insulation effect is low, and if the thickness of the fireproof heat insulation cotton sheet is large, the heat insulation effect is high, but the material consumption is large and the cost is high. Therefore, if the thickness of the fireproof heat insulation cotton sheet is 12mm, it can not only effectively insulate, but also reduce the cost.

[0027] As shown in Figure 2, the fireproof insulation cotton sheet is fixed to the fire front of the building structure 6 by a positioning screw 5, the positioning screw 5 includes a nut 51, a rod 52, a threaded rod 53 and a positioning ring 54, the nut 51, the rod 52 and the threaded rod 53 are connected in sequence, the positioning ring 54 is fixed to the outer wall of one end of the rod 52 close to the threaded rod 53, and the fireproof insulation cotton sheet can be locked between the positioning ring 54 and the nut 51. The distance between the nut 51 and the positioning ring 54 is equal to the thickness of the fireproof insulation cotton sheet.

[0028] When the material of the fireproof insulation cotton sheet is soft and fixed with a normal screw, if the screw is screwed in too long, the fireproof insulation cotton sheet will be compressed, which will have a negative effect on the insulation effect, and if the screw is screwed in too short, the fireproof insulation cotton sheet will not be fixed properly, which will cause air leakage at the connection point, and will reduce the insulation and fire prevention effect. As the density of the fireproof insulation cotton sheet is small and the screw is screwed in deeply, the positioning screw 5 can pass through the pores of the fireproof insulation cotton sheet and screw into the fire surface of the building structure 6, and when the positioning ring 54 contacts the fire surface, it cannot continue to be screwed in, and at this time, the fireproof insulation cotton sheet is just locked between the nut 51 and the positioning ring 54, which ensures the insulation effect of the fireproof insulation cotton sheet and ensures the fastness of its installation. The positioning ring 54 can also play a leveling role to prevent the fireproof insulation cotton sheet from being insufficiently flat due to the different screwing lengths of the positioning screw 5, which will have a negative effect on its insulation and fire prevention effect.

[0029] Preferably, the width of the locating ring 54 along its radial direction is 0.5mm-1mm, optimally 1mm, to provide a locating function and ensure that it can penetrate the fire-resistant insulating cotton sheet.

[0030] Preferably, the diameter of the nut 51 is at least 2 mm larger than the diameter of the rod 52 to prevent the fireproof insulation cotton sheet from coming out from the side of the nut 51. In some other embodiments, a gasket may further be provided between the nut 51 and the fireproof insulation cotton sheet.

[0031] In some other embodiments, the fire resistant insulating cotton sheet may be secured to the fire face of the building structure 6 by adhesive means.

[0032] Example 2: 3, this embodiment is an improvement based on the embodiment 1, in which the fireproof insulation cotton sheets are butt-jointed, and the sealing structure 3 is a fireproof caulking adhesive filling layer 31, which is filled into the joint. The fireproof caulking adhesive can not only fill the gap, but also adhere the fireproof insulation cotton sheets, sealing them and improving the robustness at the joint.

[0033] Example 3: Referring to FIG. 4, the fireproof insulation cotton sheets are butt-jointed, and the sealing structure 3 is a heat insulation windproof strip 32, which is arranged along the longitudinal direction of the joint and fixed at a location corresponding to the joint on the side close to the outer fireproof board 2, and both sides along the width direction of the joint abut against the two adjacent fireproof insulation cotton sheets. The heat insulation windproof strip 32 is made of the same material as the fireproof insulation cotton sheet and serves the functions of sealing and insulation. The heat insulation windproof strip 32 forms an air cavity between the fireproof insulation cotton 1 and the outer fireproof board 2, further improving the heat retention and insulation effects of the fire protection device. The fireproof insulation cotton sheet and the heat insulation windproof strip 32 may both be fixed to the building structure 6 by a positioning screw or adhesive.

[0034] Preferably, the distance between both side edges and the seams of the heat insulating windproof strip 32 along its width direction is 50 mm or more, which enhances the sealing effect and prevents wind leakage due to insufficient sealing.

[0035] Example 4: Referring to FIG. 5, the fireproof insulation cotton sheets are joined by overlapping and a overlapping joint 33 is provided at the joint, and the overlapping joint 33 is fixed to the joint on the side close to the outer fireproof board 2, and one end of the overlapping joint 33 is integrally connected to one of the fireproof insulation cotton sheets, and the other end extends in a direction approaching the other fireproof insulation cotton sheet so as to be overlapping connected to the other fireproof insulation cotton sheet. This prevents the occurrence of gaps at the joints of the adjacent fireproof insulation cotton sheets and enhances the sealing effect. The overlapping joint 33 forms an air cavity between the fireproof insulation cotton 1 and the outer fireproof board 2, further improving the heat retention and insulation effects of the fire protection device. The fireproof insulation cotton sheets and the overlapping joint 33 may both be fixed to the building structure 6 by positioning screws or adhesives.

[0036] When the building structure requiring fire protection is a steel structural bracket, the other fireproof insulation cotton sheet connected to the overlapped joint extends close to the edge of the steel structural bracket on one side of the fireproof insulation cotton sheet connected integrally with the overlapped joint, and is fixed to the bracket by the set screw 5, enhancing the robustness of the connection part. Preferably, the width of the overlapped joint 33 is 30 mm or more.

[0037] In this specification, each embodiment will be described step by step, and each embodiment will be described with a focus on the differences from other embodiments, and the same and similar parts between each embodiment may be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part may be referred to the description of the method part.

[0038] The above description of the disclosed embodiments enables those skilled in the art to realize or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to these embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. [Explanation of symbols]

[0039] 1, fireproof insulation cotton, 2, outer fireproof board, 3, sealing structure, 31, fireproof adhesive filling layer, 32, insulation windproof strip, 33, overlapping connection, 4, inner fireproof board, 5, positioning screw, 51, nut, 52, light rod, 53, threaded rod, 54, positioning ring, 6, building structure.

Claims

1. The fireproof insulation cotton (1) is attached to a flame surface of a building structure (6) to be protected from fire, and an outer fireproof panel (2) is attached to one side of the flame surface of the fireproof insulation cotton (1), This heat-insulating and fire-resistant structure is characterized in that the fire-resistant insulating cotton (1) is formed by joining multiple fire-resistant insulating cotton sheets, and a sealing structure (3) is provided at the seams of adjacent fire-resistant insulating cotton sheets.

2. 2. The heat-insulated and fire-resistant structure according to claim 1, further comprising an inner firestop (4) attached to the opposite side of the building structure (6) to the fire.

3. 2. The heat-insulating and fire-resistant structure according to claim 1, wherein the thickness of the fire-resistant and heat-insulating cotton sheet is 12 mm.

4. The heat-insulating and fire-resistant structure of claim 1, characterized in that the fire-resistant and insulating cotton sheet is fixed to the fire front of the building structure (6) by a setting screw (5), the setting screw (5) includes a nut (51), a rod (52), a threaded rod (53) and a positioning ring (54), the nut (51), the rod (52) and the threaded rod (53) are connected in sequence, the positioning ring (54) is fixed to the outer wall of one end of the rod (52) close to the threaded rod (53), the fire-resistant and insulating cotton sheet can be locked between the positioning ring (54) and the nut (51), and the distance between the nut (51) and the positioning ring (54) is equal to the thickness of the fire-resistant and insulating cotton sheet.

5. The heat-insulating and fire-resistant structure according to claim 4, characterized in that the radial width of the positioning ring is 0.5 mm to 1 mm.

6. The heat-insulating and fire-resistant structure according to claim 1, characterized in that the fire-resistant and insulating cotton sheets are butt-jointed, the sealing structure (3) is a fire-resistant caulking adhesive filling layer (31), and the fire-resistant caulking adhesive filling layer (31) is filled into the joints.

7. The heat-insulating and fire-resistant structure of claim 1, characterized in that the fire-resistant and insulating cotton sheets are butt-jointed, the sealing structure (3) is an insulating and windproof strip (32), the longitudinal direction of which is arranged along the longitudinal direction of the joint and fixed at a location corresponding to the joint on the side closer to the outer fireproof board (2), and both sides along the width direction of the joint abut against the two adjacent fire-resistant and insulating cotton sheets.

8. The heat-insulating and fire-resistant structure according to claim 7, characterized in that the distance between both side edges of the heat-insulating and windproof strip (32) arranged along its width direction and the joint is 50 mm or more.

9. The heat-insulating and fire-resistant structure of claim 1, characterized in that two adjacent fire-resistant insulating cotton sheets are joined by overlapping and connecting, an overlapping connection portion (33) is provided at the joint, the overlapping connection portion (33) is fixed to the joint portion closer to the outer fireproof board (2), one end of the overlapping connection portion (33) is integrally connected to one of the fire-resistant insulating cotton sheets, and the other end extends in a direction approaching the other fire-resistant insulating cotton sheet so as to be overlapping and connected to the other fire-resistant insulating cotton sheet.

10. 10. The heat insulating and fireproof structure according to claim 9, wherein the width of the overlap joint (33) is 30 mm or more.

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