Covering joint structure for deformation joint of outer wall of building

Abstract

The utility model relates to the technical field of building construction, in particular to a seam covering structure of a building outer wall deformation seam, and aims to solve the problems that an existing cover plate is fixed to outer wall concrete structures on the two sides through self-tapping screws, the cover plate and a decorative surface layer are prone to falling off, and many potential safety hazards exist. The joint covering structure comprises bases and a cover plate, the multiple pairs of bases are symmetrically arranged at intervals along the axis of the deformation joint, the multiple pairs of bases are connected to the concrete outer wall, gaps are formed between the bases and the heat preservation plate and between the bases and the decoration surface layer, and the two sides of the cover plate are embedded into the bases located on the two sides of the cover plate correspondingly, so that the cover plate can cover the outer side of the deformation joint.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a cover structure for expansion joints in building exterior walls. Background Technology

[0002] With increasingly stringent requirements for construction quality, the construction quality of expansion joints, settlement joints, and seismic joints on building exterior walls has become a key focus and challenge in the construction process. This is because the construction of expansion joints must not only meet design requirements and basic functional needs, but also achieve aesthetic, windproof, heat insulation, corrosion prevention, waterproofing, and fireproofing effects.

[0003] Currently, the conventional practice for building exterior wall expansion joints is to fix expansion joint cover plates made of materials such as galvanized iron sheets, aluminum plates, and stainless steel plates to the concrete structure of the exterior walls on both sides with self-tapping screws. In the later stages of building settlement and expansion, traction forces and certain tensile stresses will be generated, making the cover plates prone to deformation and detachment. The decorative surface layers on both sides of the expansion joint are also prone to poor adhesion, cracking, and detachment. The junction between the decorative surface layer and the cover plate is not easy to handle, and the cover plate is not straight at the top and bottom, making the construction process complicated. Its waterproof, sealing, thermal insulation, and corrosion resistance performance cannot meet the functional requirements, resulting in many quality problems and safety hazards. Summary of the Invention

[0004] In view of the problem that existing cover plates are fixed to the concrete structure of the exterior walls on both sides by self-tapping screws, the cover plates and decorative surfaces are prone to falling off, posing many safety hazards, the purpose of this utility model is to provide a cover structure for the expansion joints of building exterior walls.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a cover structure for the expansion joint of the building exterior wall, which includes: a base and a cover plate. Multiple pairs of bases are symmetrically arranged and spaced apart along the axis of the expansion joint. Multiple pairs of bases are connected to the concrete exterior wall, and there is a gap between the base and the insulation board and the decorative surface layer. The two sides of the cover plate are respectively embedded in the base located on both sides, so that the cover plate can cover the outside of the expansion joint.

[0006] This utility model discloses a cover structure for the expansion joint of a building's exterior wall. It includes multiple pairs of bases symmetrically arranged along the expansion joint axis and connected to the concrete exterior wall, and cover plates embedded in the bases on both sides. Gaps are provided between the bases and the insulation board and decorative surface layer. Because the cover plates are embedded in the bases on both sides, the connection is non-rigid, preventing damage to the expansion joint cover structure caused by later settlement and expansion of the building, effectively avoiding the safety hazard of deformation and detachment. The cover plates can be embedded in the bases on both sides and installed in one go, reducing the construction steps for fixing the cover plates and not affecting the construction of the interior and exterior walls, thus gaining sufficient time for the next construction process and improving construction efficiency. Moreover, the gaps between the bases and the insulation board and decorative surface layer prevent cracking and detachment of the decorative surface layer due to expansion and contraction.

[0007] Furthermore, the base includes a base plate anchored to a concrete exterior wall, and slots and positioning plates spaced apart and vertically connected to the base plate. The slots have an L-shaped or F-shaped cross-section, and the opening of the slot faces the positioning plate.

[0008] Furthermore, the cover plate includes a cover plate body and insertion parts vertically connected to both sides of the cover plate body. The cross-section of the insertion part is L-shaped or F-shaped, and the flange of the insertion part can be embedded in the slot of the slot, so that the two insertion parts of the cover plate can be respectively embedded in the slots located on the base on both sides and slide along the slots.

[0009] Furthermore, the length of the cover plate is greater than the net length of the expansion joint, and the joint between two adjacent cover plates is lapped.

[0010] Furthermore, the cover plate body has a telescopic section in the middle, and the cross-section of the telescopic section is a series of continuous V-shapes.

[0011] Furthermore, the base and cover are made of aluminum alloy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of an embodiment of the cover structure for the expansion joint of the building exterior wall according to the present invention;

[0013] Figure 2 This is a schematic diagram of the base structure in one embodiment of the present invention;

[0014] Figure 3 This is a schematic diagram of the cover plate in one embodiment of the present invention.

[0015] The numbers in the diagram are as follows:

[0016] 1. Concrete exterior wall; 2. Insulation board; 3. Decorative surface layer; 10. Base; 11. Base plate; 12. Slot; 14. Positioning plate; 20. Cover plate body; 21. Insertion part; 24. Expansion part; 25. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the embodiments of the present invention. For ease of description, the terms "upper" and "lower" used below are consistent with the upper and lower directions in the drawings, but this should not be construed as a limitation of the technical solution of the present invention.

[0018] Combination Figures 1 to 3 The present invention describes a cover structure for an expansion joint in a building exterior wall, comprising: a base 10 and a cover plate 20. Multiple pairs of bases 10 are symmetrically arranged and spaced apart along the expansion joint axis. Multiple pairs of bases 10 are connected to the concrete exterior wall 1, and gaps are provided between the bases 10 and the insulation board 2 and the decorative surface layer 3. The two sides of the cover plate 20 are respectively embedded in the bases 10 located on both sides, so that the cover plate 20 can cover the outside of the expansion joint.

[0019] This utility model discloses a cover structure for the expansion joint of a building's exterior wall. It includes multiple pairs of bases 10 symmetrically arranged along the expansion joint axis and connected to the concrete exterior wall 1, and cover plates 20 embedded in the bases 10 on both sides. There are gaps between the bases 10 and the insulation board 2 and the decorative surface layer 3. Since the cover plates 20 are embedded in the bases 10 on both sides, the connection between them is non-rigid, which can prevent damage to the expansion joint cover structure caused by the later settlement and expansion of the building, and effectively avoid the safety hazard of deformation and detachment. The cover plates 20 can be embedded in the bases 10 on both sides and installed in place at one time, reducing the construction steps of fixing the cover plates 20, and not affecting the construction of the interior and exterior walls, thus gaining sufficient time for the next construction process and improving construction efficiency. Moreover, the gaps between the bases 10 and the insulation board 2 and the decorative surface layer 3 prevent the decorative surface layer 3 from cracking or falling off due to expansion and contraction.

[0020] like Figure 1 and Figure 2 As shown, the base 10 includes a base plate 11 anchored to the concrete exterior wall 1, and slots 12 and positioning plates 14 spaced apart and vertically connected to the base plate 11. The slots 12 have an L-shaped or F-shaped cross-section. In this embodiment, the slots 12 are arranged as shown in the figure. Figure 2 The cross-section shown is an F-shaped slot 12. The slot 12 includes two openings, and the openings of the openings face the positioning plate 14. The positioning plate 14 is used to limit the position of the embedded cover plate 20.

[0021] like Figure 1 and Figure 3As shown, the cover plate 20 includes a cover plate body 21 and insertion portions 24 vertically connected to both sides of the cover plate body 21. The cross-section of the insertion portion 24 is L-shaped or F-shaped, and the shape of the insertion portion 24 matches the cross-section of the slot 12, that is, the flange of the insertion portion 24 can be embedded in the groove of the slot 12, so that the two insertion portions 24 of the cover plate 20 can be respectively embedded in the slots 12 located on both sides of the base 10 and slide along the slots 12, and are fixed by the self-drilled screws that penetrate the positioning plate 14 of the base 10 and the insertion portions 24 of the cover plate 20. Since the cover plate 20 is embedded in the bases 10 on both sides, the cover plate 20 can slide along the base 10, which facilitates the adjustment of the installation position. Moreover, the above-mentioned track-type insertion structure allows the insertion structure to expand and contract freely when the temperature changes, reducing the damage of thermal stress to the material, which can adapt to the construction of cold regions and ensure that the cover joint structure is safer and more reliable.

[0022] Furthermore, the length of the cover plate 20 is about 25mm longer than the net length of the expansion joint to accommodate the settlement and expansion deformation of the building. The joint between two adjacent cover plates 20 is lapped, that is, the two adjacent cover plates 20 overlap end to ensure that the joint is completely covered, and the ends of the cover plate 20 are sealed by end caps to prevent water or debris from entering.

[0023] like Figure 3 As shown, the cover plate body 21 has a telescopic part 25 in the middle. The cross-section of the telescopic part 25 is in the shape of multiple continuous V-shapes. The continuous V-shaped structure allows the cover plate 20 to bend or expand adaptively when subjected to external force, avoiding breakage or deformation, thereby adapting to different installation environments or coping with physical changes such as thermal expansion and contraction.

[0024] The base 10 and cover plate 20 of this utility model are made of aluminum alloy material. Aluminum alloy material has low density and high strength, which can effectively bear the load and reduce the structural burden.

[0025] Combination Figure 1 This invention describes the construction process of the cover structure for the expansion joint of the building's exterior wall:

[0026] First, clean the base layer of the building's exterior wall expansion joints, remove any protruding debris from the surface, then clean with a spray bottle, and finally use a blower to remove dust from the base layer and clean up any debris and garbage inside the joints. Mark the base layer with ink lines to control the lines and the outer contour lines.

[0027] Rock wool or other fireproof materials are filled into the expansion joints of the building's exterior walls, with the filling material being 20mm lower than the surface layer.

[0028] Determine the installation hole spacing of the base 10, mark the drilling points on the exterior wall surface with a marker, then drill holes with an 8mm electric hammer drill bit, hammer plastic expansion tubes into the holes, and fix the base 10 to the exterior wall with 8mm stainless steel expansion nails. Insert the two plug-in parts 24 of the cover plate 20 into the slots 12 of the base 10 on both sides, and fix the base 10 and the cover plate 20 with 40mm self-drilling screws.

[0029] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the claims.

Claims

1. A cover structure for expansion joints in the exterior walls of a building, characterized in that, It includes: The base and cover plate consist of multiple pairs of bases arranged symmetrically and at intervals along the expansion joint axis, with multiple pairs of bases connected to the concrete exterior wall. There are gaps between the bases and the insulation board and decorative surface layer. The cover plate is embedded in the bases on both sides, so that the cover plate can cover the outside of the expansion joint.

2. The cover structure for the expansion joint of the building exterior wall according to claim 1, characterized in that: The base includes a base plate anchored to a concrete exterior wall, and slots and positioning plates spaced apart and vertically connected to the base plate. The slots have an L-shaped or F-shaped cross-section, and the opening of the slot faces the positioning plate.

3. The cover structure for the expansion joint of the building exterior wall according to claim 2, characterized in that: The cover plate includes a cover plate body and insertion parts vertically connected to both sides of the cover plate body. The cross-section of the insertion part is L-shaped or F-shaped. The flange of the insertion part can be embedded in the slot of the slot, so that the two insertion parts of the cover plate can be respectively embedded in the slots located on the base on both sides and slide along the slots.

4. The cover structure for the expansion joint of the building exterior wall according to claim 3, characterized in that: The length of the cover plate is greater than the net length of the expansion joint, and the joint between two adjacent cover plates is lapped.

5. The cover structure for the expansion joint of the building exterior wall according to claim 3, characterized in that: The cover plate body has a telescopic section in the middle, and the cross-section of the telescopic section is in the shape of multiple continuous V-shapes.

6. The cover structure for the expansion joint of the building exterior wall according to claim 1, characterized in that: The base and cover are made of aluminum alloy.

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