A curtain wall expansion joint cover plate with improved sealing performance

Abstract

The utility model discloses a curtain wall expansion joint cover plate that improves sealing performance belongs to building construction technical field, including cover plate main part, two symmetrical card and set in curtain wall expansion joint both sides inner wall's L shape skeleton, the U type rainwater gutter of cover plate main part's front end lower wall fixed connection, the back end lower wall fixed connection of cover plate main part has and U type rainwater gutter joint connection's water diversion board, the lateral wall of water diversion board is equipped with several equal interval arrangement set's water -permeable hole, two L shape skeleton is fixed in the both ends of U type rainwater gutter and water diversion board respectively. In the utility model, through the one side inner wall that L shape skeleton and curtain wall expansion joint inner wall are pasted in and add L shape rubber sealing strip, and the gap between cover plate main part and heat preservation board is filled with foaming agent, and combining cover plate main part adopts double -layer sealing structure, and the sealing property of curtain wall expansion joint and cover plate main part junction is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically a curtain wall expansion joint cover plate that improves sealing performance. Background Technology

[0002] A curtain wall is the exterior cladding of a building. It is non-load-bearing and hangs like a curtain, hence the name "curtain wall." It is a lightweight wall structure with decorative effects commonly used in modern large and high-rise buildings. It consists of panels and a supporting structural system. It is a building envelope or decorative structure that can have a certain displacement capacity relative to the main structure or has a certain deformation capacity itself, and does not bear the load of the main structure (the exterior wall frame support system is also a type of curtain wall system). Expansion joints are a type of building deformation joint. The width left by the civil engineering is usually 50-100mm, while the expansion and deformation width of the building is usually 20-30mm.

[0003] A novel decorative cover for expansion joints in large public buildings (patent number: CN219863833U) is disclosed in Chinese patent. The device includes an installation frame and a glass plate. The glass plate is fixedly connected to the installation frame, and an L-shaped connecting plate is detachably connected to the installation frame. The L-shaped connecting plate is fixedly connected to the column at the expansion joint. A back plate parallel to the glass plate is detachably connected to the side of the installation frame away from the glass plate. The purpose of this device is to solve the problem that the use of metal covers for expansion joints in existing glass curtain walls affects the aesthetics and overall appearance of the glass curtain wall. However, the structure of this curtain wall expansion joint cover is too simple, and its sealing performance is poor, resulting in insufficient sealing and protection of the curtain wall expansion joint. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: a curtain wall expansion joint cover plate with improved sealing performance, comprising a cover plate body, two L-shaped frames symmetrically mounted on the inner walls of both sides of the curtain wall expansion joint, a U-shaped rain guide groove fixedly connected to the lower front wall of the cover plate body, a water guide plate fixedly connected to the lower rear wall of the cover plate body and engaging with the U-shaped rain guide groove, a plurality of equally spaced water permeable holes being opened on the side wall of the water guide plate, the two L-shaped frames being respectively fixed to the two ends of the U-shaped rain guide groove and the water guide plate, an L-shaped rubber sealing strip being fixedly connected to the inner wall of the L-shaped frame that is in contact with the inner wall of the curtain wall expansion joint, and an insulation board being embedded between the two L-shaped frames.

[0005] As a further embodiment of this utility model, the cover plate body has a wavy cross-section and is made of aluminum alloy or stainless steel with anodized surface treatment.

[0006] As a further embodiment of this utility model: one end of the cover plate body is provided with a folded edge retaining strip, and the other end of the cover plate body is provided with a folded edge retaining groove corresponding to the folded edge retaining strip.

[0007] As a further embodiment of this utility model: the L-shaped frame is fixedly connected to the wall surface of the curtain wall expansion joint by stainless steel fasteners, and the side wall of the L-shaped frame is provided with a movable slot, through which the stainless steel fasteners are installed.

[0008] As a further improvement of this utility model, a dust filter screen is fixedly connected to the inner wall of the water-permeable hole.

[0009] As a further improvement of this utility model, the gap between the cover plate body and the insulation board is filled with foam agent.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model improves the sealing performance of the connection between the curtain wall expansion joint and the cover plate body by adding an L-shaped rubber sealing strip to the inner wall of the L-shaped frame that fits with the inner wall of the curtain wall expansion joint, and filling the gap between the cover plate body and the insulation board with foam agent, combined with the cover plate body, and adopting a double-layer sealing structure.

[0012] 2. This utility model uses two L-shaped frames as a base to fix the cover plate body at the expansion joint of the curtain wall. Movable slots are opened on the L-shaped frames, and stainless steel fasteners pass through the movable slots, allowing the stainless steel fasteners to move relative to each other in the movable slots on the L-shaped frames. This allows the cover plate body to move within a certain range, improving its expansion and contraction adaptability. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the cover plate body of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the L-shaped frame of this utility model;

[0016] Figure 4 For the present utility model Figure 3 A magnified structural diagram at point A.

[0017] The correspondence between the labels and component names in the attached figures is as follows:

[0018] 1. Cover plate body; 2. L-shaped frame; 3. U-shaped rain guide channel; 4. Water guide plate; 5. Water permeable hole; 6. L-shaped rubber sealing strip; 7. Insulation board; 8. Folded edge retaining strip; 9. Folded edge retaining groove; 10. Stainless steel fasteners; 11. Movable groove; 12. Dust filter screen; 13. Foaming agent. Detailed Implementation

[0019] Please see Figures 1-4 This embodiment provides a curtain wall expansion joint cover plate with improved sealing performance, which includes a cover plate body 1 and two L-shaped frames 2 symmetrically fixed to the inner walls on both sides of the curtain wall expansion joint as a base fixation. A U-shaped rain guide groove 3 is fixedly connected to the lower front wall of the cover plate body 1, and a water guide plate 4 is fixedly connected to the lower rear wall of the cover plate body 1 and is engaged with the U-shaped rain guide groove 3. The side wall of the water guide plate 4 has a number of water permeable holes 5 arranged at equal intervals. The two L-shaped frames 2 are respectively fixed to the two ends of the U-shaped rain guide groove 3 and the water guide plate 4, which can guide and drain rainwater that seeps from the joint between the two cover plate bodies 1 to prevent water accumulation. It can be connected to the curtain wall expansion joint drainage system. An L-shaped rubber sealing strip 6 is fixedly connected to the inner wall of the L-shaped frame 2 that is in contact with the inner wall of the curtain wall expansion joint, which further improves the sealing performance at the connection between the curtain wall expansion joint and the cover plate body 1. An insulation board 7 is embedded between the two L-shaped frames 2 to increase the insulation effect of the cover plate body 1.

[0020] like Figure 2 As shown: The cross-section of the cover plate body 1 is a wave-shaped structure, which can increase the deformation margin and improve the strain applicability to the curtain wall expansion joint. The cover plate body 1 is made of aluminum alloy or stainless steel with anodized surface treatment.

[0021] like Figure 2 As shown: One end of the cover plate body 1 is provided with a folded edge retaining strip 8, and the other end of the cover plate body 1 is provided with a folded edge retaining groove 9 corresponding to the folded edge retaining strip 8, so as to facilitate a tight connection between the two cover plate bodies 1.

[0022] like Figure 4 As shown: The L-shaped frame 2 is fixedly connected to the wall surface of the curtain wall expansion joint by stainless steel fasteners 10. The side wall of the L-shaped frame 2 is provided with a movable slot 11. The stainless steel fasteners 10 are set through the movable slot 11. The stainless steel fasteners 10 can be relatively displaced in the movable slot 11 on the L-shaped frame 2, so that the cover plate body 1 can be displaced within a certain range, thereby improving the expansion and contraction adaptability.

[0023] like Figure 4 As shown: A dust filter 12 is fixedly connected to the inner wall of the water permeable hole 5 to prevent dust from entering the U-shaped rain guide channel 3.

[0024] like Figure 2As shown: the gap between the cover plate body 1 and the insulation board 7 is filled with foam agent 13, which plays a certain role in heat preservation, reduces the formation of gaps, and improves the sealing performance.

[0025] Working principle: In this device, two L-shaped frames 2 are used as the base for fixing. The cover plate body 1 is fixed at the expansion joint of the curtain wall. Movable slots 11 are opened on the L-shaped frames 2. Stainless steel fasteners 10 pass through the movable slots 11, so that the stainless steel fasteners 10 can be relatively displaced in the movable slots 11 on the L-shaped frames 2, so that the cover plate body 1 can be displaced within a certain range, thereby improving the expansion and contraction adaptability.

[0026] An L-shaped rubber sealing strip 6 is added to the inner wall of the side of the L-shaped frame 2 that is in contact with the inner wall of the curtain wall expansion joint, and foam agent 13 is filled in the gap between the cover plate body 1 and the insulation board 7. Combined with the cover plate body 1, a double-layer sealing structure is adopted to further improve the sealing performance of the connection between the curtain wall expansion joint and the cover plate body 1.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A curtain wall expansion joint cover plate with improved sealing performance, comprising a cover plate body (1) and two L-shaped frames (2) symmetrically fitted onto the inner walls of both sides of the curtain wall expansion joint, characterized in that, The front end of the cover plate body (1) is fixedly connected to a U-shaped rain guide groove (3), and the rear end of the cover plate body (1) is fixedly connected to a water guide plate (4) that is snapped into the U-shaped rain guide groove (3). The side wall of the water guide plate (4) is provided with several water permeable holes (5) arranged at equal intervals. The two L-shaped frames (2) are fixed to the two ends of the U-shaped rain guide groove (3) and the water guide plate (4) respectively. The inner wall of the L-shaped frame (2) that is in contact with the inner wall of the curtain wall expansion joint is fixedly connected to an L-shaped rubber sealing strip (6). An insulation board (7) is embedded between the two L-shaped frames (2).

2. A curtain wall expansion joint cover plate for improving sealing performance according to claim 1, characterized in that, The cover plate body (1) has a wavy cross-section and is made of aluminum alloy or stainless steel with anodized surface.

3. A curtain wall expansion joint cover plate for improving sealing performance according to claim 1, characterized in that, One end of the cover plate body (1) is provided with a folded edge strip (8), and the other end of the cover plate body (1) is provided with a folded edge groove (9) corresponding to the folded edge strip (8).

4. A curtain wall expansion joint cover plate for improving sealing performance according to claim 1, characterized in that, The L-shaped frame (2) is fixedly connected to the wall surface of the curtain wall expansion joint by stainless steel fasteners (10). The side wall of the L-shaped frame (2) is provided with a movable slot (11), and the stainless steel fasteners (10) are set through the movable slot (11).

5. A curtain wall expansion joint cover plate for improving sealing performance according to claim 1, characterized in that, A dust filter (12) is fixedly connected to the inner wall of the water-permeable hole (5).

6. A curtain wall expansion joint cover plate for improving sealing performance according to claim 1, characterized in that, The gap between the cover plate body (1) and the insulation board (7) is filled with foam agent (13).

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