An external envelope of a building curtain wall with a protective interlayer fire-stopping system

Abstract

This utility model discloses a fireproof interlayer sealing system for the outer envelope of a building curtain wall, relating to the field of fireproof sealing construction technology for curtain walls. It includes an outer envelope structure comprising a supporting steel plate and a fireproof insulation board, with waterproof protective plates covering both ends of the fireproof insulation board. This utility model, by covering both ends of the fireproof insulation board with waterproof protective plates, prevents rainwater from flowing to the ends of the fireproof insulation board and between the fireproof insulation board and the supporting steel plate, thereby solving the problem of rainwater flowing downwards and seeping through the overlap gaps between the two outer envelope structures, causing the fireproof insulation board to absorb water, powder, and detach.

Description

Technical Field

[0001] This utility model relates to the field of fireproof sealing technology for curtain walls, and in particular to an interlayer fireproof sealing system with protective features for the outer envelope of a building curtain wall. Background Technology

[0002] A fire-resistant curtain wall structure is composed of fire-resistant materials and supporting components. It has certain fire-resistant, smoke-proof, and heat-insulating properties. It works in conjunction with the corresponding building structure or components within a specified fire resistance time to seal the gaps or holes between the building curtain wall and the main building structure.

[0003] like Figure 1-6 As shown, a novel interlayer fireproof sealing system for existing building curtain walls includes: a supporting steel plate 11, a fireproof and heat-insulating board 12, and directional expansion cotton strips 13. The supporting steel plate 11 is bent into a corresponding structural shape, such as a right-angle structure, according to the position and connection relationship between the beam 10 of the building structure and the curtain wall 20; the bent edges 111 formed by bending along its width are respectively connected to the exposed frame crossbars 201 of the beam 10 of the building structure and the curtain wall 20. The fireproof and heat-insulating board 12 is fixed to the inner surface of the supporting steel plate 11 by heat-insulating welding studs 14, making the fireproof and heat-insulating board 12 and the supporting steel plate 11 an integral structure. One end of the supporting steel plate 11 extends beyond the end face of the fireproof and heat-insulating board 12 along its length, and the other end is flush with the end face of the fireproof and heat-insulating board 12. The directional expansion cotton strip 13 is fixed between the supporting steel plate 11 and the beam 10 of the building structure, and between the supporting steel plate 11 and the exposed frame crossbar 201 of the curtain wall 20. The directional expansion cotton strip 13 is fixed to the outer side of the bent edge 111 of the supporting steel plate 11 by a double-sided adhesive layer. The supporting steel plate 11, the fireproof and heat-insulating board 12, the directional expansion cotton strip 13 and the heat-insulating welding nail 14 form the outer enclosure structure 1. Two outer enclosure structures 1 can be extended by overlapping and fixing them together along the length direction. One side of the outer enclosure structure 1 is fixed to the beam 10 of the building structure by screws passing through the bent edge 111 and the directional expansion cotton strip 13 of the supporting steel plate 11 in sequence. The other end abuts or overlaps with the exposed frame crossbar 201 of the curtain wall 20.

[0004] However, in actual use, it was found that in windy and rainy weather, rainwater would seep into the upper part of the supporting steel plate 11 through the gaps between the curtain walls, and the rainwater would flow down and seep into the end face of the fireproof and heat-insulating board 12 through the overlapping gaps of the two outer enclosure structures 1, causing the fireproof and heat-insulating board 12 to absorb water, powder, and fall off. Utility Model Content

[0005] This utility model provides an interlayer fireproof sealing system with protective features for the external envelope of a building curtain wall, in order to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An external envelope of a building curtain wall with a protective interlayer fire-stopping system includes an external envelope, which includes a supporting steel plate and a fire-resistant heat insulation board, the two ends of which are covered with a waterproof protective board.

[0008] Preferably, the waterproof protective plate on the end face of the fireproof and heat-insulating plate extending from the supporting steel plate is "L" shaped.

[0009] Preferably, the waterproof protective plate on the end face of the fireproof and heat-insulating plate, which is flush with one end of the supporting steel plate, is integrally formed with the supporting steel plate.

[0010] Preferably, the external corners of the two adjacent fireproof and heat-insulating boards are provided with anti-collision protection plates, which cover the outer edge of one of the fireproof and heat-insulating boards.

[0011] Preferably, the anti-collision protective plate is U-shaped.

[0012] Preferably, the concave surface of the head of the insulating welding stud faces the fireproof and heat-insulating board.

[0013] Preferably, the fireproof and heat-insulating board is made of ceramic fiber board.

[0014] Preferably, the fireproof and heat-insulating board contains a water-repellent agent.

[0015] Beneficial effects:

[0016] This application discloses a fireproof interlayer sealing system for the outer envelope of a building curtain wall. By covering both ends of the fireproof insulation board with waterproof protective plates, rainwater is prevented from flowing to the ends of the fireproof insulation board and between the fireproof insulation board and the supporting steel plate. This solves the problem of rainwater flowing down and seeping through the overlapping gaps of the two outer envelope structures, causing the fireproof insulation board to absorb water, powder, and fall off. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural schematic diagram of an existing building curtain wall fireproofing system;

[0019] Figure 2 for Figure 1 A magnified view of part I;

[0020] Figure 3 A structural diagram of the external envelope of an existing building curtain wall fireproof sealing system;

[0021] Figure 4 for Figure 3 Sectional view of AA;

[0022] Figure 5 for Figure 3 Sectional view of BB;

[0023] Figure 6 for Figure 3 Sectional view of CC;

[0024] Figure 7 This utility model discloses a structural schematic diagram of an external enclosure structure for a building curtain wall with a protective interlayer fireproof sealing system.

[0025] Figure 8 for Figure 7 Sectional view of DD;

[0026] Figure 9 for Figure 7 Sectional view of EE;

[0027] Figure 10 for Figure 7 A cross-sectional view of FF.

[0028] 1. External envelope structure; 11. Supporting steel plate; 111. Bending edge; 12. Fireproof and heat-insulating board; 121. Waterproof protective board; 122. Anti-collision protective board; 13. Directional expansion cotton strip; 14. Thermal insulation welding stud; 10. Beam; 20. Curtain wall; 201. Exposed frame crossbar. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] An external envelope of a building curtain wall incorporates a protective inter-layer fire-stopping system, combined with... Figures 7-10As shown, the enclosure includes an outer perimeter structure 1, which comprises a supporting steel plate 11 and a fireproof and heat-insulating board 12. Both ends of the fireproof and heat-insulating board 12 are covered with waterproof protective plates 121. This application, by covering both ends of the fireproof and heat-insulating board 12 with waterproof protective plates 121, prevents rainwater from flowing towards the ends of the fireproof and heat-insulating board 12 and between the fireproof and heat-insulating board 12 and the supporting steel plate 11. This solves the problem of rainwater flowing downwards and seeping through the overlapping gaps of the two outer perimeter structures 1, causing the fireproof and heat-insulating board 12 to absorb water, powder, and fall off. Simultaneously, the waterproof protective plates 121 also protect the ends of the fireproof and heat-insulating board 12.

[0031] Preferably, the waterproof protective plate 121 of the end face of the fireproof and heat-insulating plate 12 extending from the supporting steel plate 11 is "L" shaped to enhance the waterproof effect.

[0032] Specifically, the waterproof protective board 121 is made of angle steel, and the long side of the waterproof protective board 121 is welded to the extended part of the supporting steel plate 11. The end face of the fireproof and heat-insulating board 12 is bonded to the short side of the waterproof protective board 121. When rainwater flows in from the overlapping gap, the rainwater will flow away from the waterproof protective board 121 without contacting the surface of the fireproof and heat-insulating board 12.

[0033] Preferably, the waterproof protective plate 121 on the end face of the fireproof and heat-insulating plate 12, which is flush with one end of the supporting steel plate 11, is integrally formed with the supporting steel plate 11, and the end face of the fireproof and heat-insulating plate 12 is bonded to the waterproof protective plate 121. In this embodiment, bending forming is used.

[0034] Preferably, the external corners of the two adjacent fireproof and heat-insulating panels 12 are provided with anti-collision protection plates 122, which cover the outer edge of one of the fireproof and heat-insulating panels 12. A supporting steel plate 11 is located above the fireproof and heat-insulating panels 12, thus the supporting steel plate 11 is bent to form an internal corner; the flat fireproof and heat-insulating panels 12 are spliced ​​to adapt to the shape of the supporting steel plate 11, so that the two adjacent fireproof and heat-insulating panels 12 form an external corner. This leaves the external corners of the fireproof and heat-insulating panels 12 unprotected, making them highly susceptible to damage from collisions during transportation and construction. Therefore, protection is achieved by covering the outer edge of one of the two fireproof and heat-insulating panels 12 forming the external corner with an anti-collision protection plate 122.

[0035] Preferably, the anti-collision protection plate 122 is U-shaped, which can protect both right angles of the outer edge of the fireproof and heat-insulating plate 12, thereby improving the protection effect. In this embodiment, the anti-collision protection plate 122 is made of channel steel.

[0036] Preferably, the concave surface of the nail head of the insulating welding stud 14 faces the fireproof and heat-insulating plate 12, ensuring that the insulating welding stud 14 fixes the fireproof and heat-insulating plate 12 to the supporting steel plate 11, and the concave surface of the nail head facing the fireproof and heat-insulating plate 12 can prevent scratches.

[0037] Preferably, the fireproof and heat-insulating board 12 is made of ceramic fiber board, which is easy to cut and install, does not produce powder, and is convenient for construction; it has excellent wind erosion resistance; it is suitable for continuous production, with uniform fiber distribution and stable performance.

[0038] Preferably, the fireproof and heat-insulating board 12 contains a water-repellent agent, which can effectively prevent the fireproof and heat-insulating board 12 from powdering and falling off due to water absorption or absorption of moisture in the air.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A protective interlayer fire-stopping system for the external envelope of a building curtain wall, comprising an external envelope (1), said external envelope (1) including a supporting steel plate (11) and a fire-resistant and heat-insulating plate (12), characterized in that, The fireproof and heat-insulating board (12) is covered with waterproof protective boards (121) on both ends.

2. The interlayer fire-stopping system with protective features for the external envelope of a building curtain wall according to claim 1, characterized in that, The waterproof protective plate (121) on the end face of the fireproof and heat-insulating plate (12) extending from the supporting steel plate (11) is "L" shaped.

3. The interlayer fire-stopping system with protective features for the external envelope of a building curtain wall according to claim 1, characterized in that, The waterproof protective plate (121) on the end face of the fireproof and heat-insulating plate (12), which is flush with one end of the supporting steel plate (11), is integrally formed with the supporting steel plate (11).

4. The interlayer fire-stopping system with protective features for the external envelope of a building curtain wall according to claim 1, characterized in that, The two fireproof and heat-insulating boards (12) connected to each other are provided with anti-collision protection plates (122) at their external corners, and the anti-collision protection plates (122) cover the outer edge of one of the fireproof and heat-insulating boards (12).

5. The interlayer fire-stopping system with protective features for the external envelope of a building curtain wall according to claim 4, characterized in that, The anti-collision protection plate (122) is U-shaped.

6. The interlayer fire-stopping system with protective features for the external envelope of a building curtain wall according to claim 1, characterized in that, The concave surface of the head of the heat-insulating welding stud (14) faces the fireproof heat insulation board (12).

7. The interlayer fire-stopping system with protective features for the external envelope of a building curtain wall according to claim 1, characterized in that, The fireproof and heat-insulating board (12) is made of ceramic fiber board.

8. The interlayer fire-stopping system with protective features for the external envelope of a building curtain wall according to claim 7, characterized in that, The fireproof and heat-insulating board (12) contains a water-repellent agent.

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