Structure for preventing leakage and cracking at top construction joint of filling wall of frame structure building

Abstract

This utility model discloses a structure for preventing leakage and cracking at construction joints in infill walls of frame structures. The structure includes a connector, comprising a connector plate and a leveling part. The connector plate covers the construction joint between the frame and the infill wall. The connector plate includes a fixing part fixed to the frame and a connecting part that covers the construction joint. A non-curing waterproof adhesive layer is applied to the connecting part to achieve a flexible connection between plaster layers and prevent cracking. The leveling part protrudes from the wall surface at a height not exceeding the thickness of the plaster layer to achieve a screed function. This solution uses the connector plate on the connector to fix it to the frame, allowing the plaster layer to be applied to the connector plate. This eliminates the need for applying mortar into the construction joint. The strip-shaped sealing waterproof adhesive layer adheres to the construction joint to achieve sealing and waterproofing performance. Simultaneously, the non-curing waterproof adhesive layer provides a flexible connection between the plaster layers at the connector, effectively preventing cracking of the plaster layer.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a structure for preventing leakage and cracking at the construction joint of the infill wall at the top of a frame structure building. Background Technology

[0002] After the building's exterior walls are erected, they need to be plastered for protection and aesthetic purposes. For frame structures, the overall structure consists of infill walls within a frame, which creates construction joints at the connection points. These joints can leave "air cavities" inside. During the drying process of the plaster layer, the mortar around these air cavities shrinks unevenly, causing "hollows" to form at the gaps. This can lead to surface cracking, allowing rainwater to enter the construction joints and causing problems such as plaster layer peeling off.

[0003] The conventional solution to the above problems is to inject mortar into the construction joint between the frame and the infill wall and press it tightly to eliminate the potential for gaps, enhance the overall integrity of the interface, and disperse the stress in the later stage. However, in the actual use environment, due to the different materials of the frame and the infill wall, and the influence of seasonal temperature changes such as summer and winter, the construction joint between the frame and the infill wall will still have the problem of stress concentration (the degree of deformation is usually 1-3mm) when the sand injection process of the construction joint is completed in the high temperature environment of summer, and in the low temperature environment of winter, the plaster layer is more likely to crack at the construction joint due to the shrinkage and stretching of the material.

[0004] Therefore, a new technical solution is needed to improve or solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a structure for preventing leakage and cracking at the construction joint of the infill wall at the top of a frame structure building, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a technical solution for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building. The structure includes a connector, which comprises a connector plate and a leveling part. The connector plate can cover the construction joint between the frame and the infill wall. The connector plate includes a fixing part and a connecting part. The fixing part is fixed to the frame, and the connecting part covers the construction joint. A non-curing waterproof adhesive layer is coated on the connecting part for connection with the plaster layer coated on the infill wall. The non-curing waterproof adhesive layer has extensibility. The leveling part is located on the surface of the connecting plate away from the building's exterior wall. The leveling part is set along the construction joint direction. The distance from the leveling part to the frame fixed to the fixing part is not greater than the thickness of the plaster layer applied to the frame.

[0007] Preferably, the leveling part includes a snap-fit ​​seat and a telescopic leveling component. The snap-fit ​​seat is provided with a plurality of snap-fit ​​positions along the thickness direction of the plaster layer, and the telescopic leveling component can be snapped and fixed at any snap-fit ​​position.

[0008] Preferably, the snap-fit ​​position is a serrated structure formed on the snap-fit ​​base, and the telescopic leveling component is provided with a snap hook that can snap into the serrated structure on the snap-fit ​​base.

[0009] Preferably, the snap-fit ​​seat and the telescopic leveling component form a hollow structure with an opening in the length direction of the construction joint.

[0010] Preferably, the length of the snap-fit ​​seat in the plaster layer thickness direction is 10-15mm, and the length of the telescopic leveling component in the plaster layer thickness direction is 10-15mm.

[0011] Preferably, the distance between adjacent snap-fit ​​positions is 2-5mm.

[0012] Preferably, the connecting plate and the leveling part are made of stainless steel or PE material.

[0013] Preferably, the connecting plate is connected and fixed to the frame by a fastener.

[0014] Preferably, a non-curing waterproof adhesive layer 2 is applied between the connecting plate and the building exterior wall.

[0015] The beneficial effects of this utility model are as follows: This solution uses a connecting plate on the connector to fix the frame and covers the construction joint, allowing the plaster layer to be applied to the connecting plate. This eliminates the need for injecting sand into the construction joint. Furthermore, by applying a flexible, non-curing waterproof adhesive layer to the connection and connecting it to the plaster layer applied to the infill wall, the connection between the two is flexible. Since there is no rigid connection between the connector and the infill wall, stress concentration and cracking of the plaster layer due to construction joint deformation are effectively avoided within the flexibility range of the non-curing waterproof adhesive layer. Additionally, the leveling section acts as a screed, effectively aiding in leveling during subsequent plastering work, saving the steps of creating plaster spots and screeds, and improving plastering efficiency. This product serves two purposes: preventing plaster layer cracking at construction joints and acting as a screed, making it highly economical in building exterior wall construction.

[0016] The design of the snap-fit ​​connector and the telescopic leveling component allows the product to adjust the position of the telescopic leveling component in the thickness direction of the plaster layer according to different plaster layer thicknesses, thus improving the performance of the product. The design of the card seat and the expansion leveling component forming a hollow structure with an opening in the length direction of the construction joint can effectively save both the production materials and the plaster layer materials, thus achieving a dual-purpose function. According to relevant standards in the construction industry, the thickness of the plaster layer should not exceed 20mm under normal circumstances, and it usually does not exceed 30mm under special circumstances. Based on this, the parameter design of the snap-fit ​​seat and the expansion leveling part of this product can meet the needs of most scenarios. The parameter limitation on the distance range between adjacent card slots allows customers to select products that are easier to adjust based on the thickness range of the plaster layer (the larger the parameter, the less likely it is to cause errors during adjustment). Among them, due to the influence of moisture and corrosive substances present in the plaster layer during the application process, corrosion may occur to the connecting parts. After corrosion, hollow areas may appear in the area, which will reduce the mechanical properties of the plaster layer and cause problems such as peeling. Therefore, choosing stainless steel or PE materials with certain strength and corrosion resistance can effectively ensure the service life of the connecting parts. By setting a non-curing waterproof adhesive layer 2, it is possible to prevent moisture from the plaster layer from entering through the gaps between the joints and the frame, and to prevent any possible moisture from entering between the frame / infill wall and the plaster layer through the construction joints. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the position of the connector of this utility model when it is installed on the exterior wall of a frame structure building; Figure 2 This is a cross-sectional view of the position of the connector of this utility model when it is installed on the exterior wall of a frame structure building; Figure 3 This is a structural schematic diagram of the connecting component in this utility model; Figure 4 This is a side view of the connector in this utility model; Figure 5 This is a schematic diagram of the structure of the frame structure building after plastering; In the diagram: 1. Frame; 2. Infill wall; 3. Connector; 31. Connecting plate; 32. Clip-on seat; 33. Expansion leveling component; 34. Connection fixing hole; 4. Construction joint; 5. Plaster layer; 6. Non-curing waterproof adhesive layer 1; 7. Butyl (rubber) rubber; 8. Structural adhesive. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] The illustrative embodiments and descriptions of this utility model are used to explain the utility model, but are not intended to limit the utility model. Furthermore, elements / components using the same or similar reference numerals in the drawings and embodiments are used to represent the same or similar parts.

[0020] The directional terms used in this invention, such as up, down, left, right, front, or back, are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the scope of this invention.

[0021] The terms “comprising,” “including,” “having,” “containing,” etc., used in this utility model are all open-ended terms, meaning that they include but are not limited to.

[0022] The term "and / or" as used in this utility model includes any or all combinations of the said things.

[0023] The terms "approximately," "about," etc., used in this invention are intended to modify any quantity or error that may vary slightly, but these slight variations or errors do not change the essence of the quantity or error. Generally, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in others, 5% in still others, or other values. Those skilled in the art should understand that the aforementioned values ​​can be adjusted according to actual needs and are not limited thereto. Example

[0024] See Figure 1-5 A structure for preventing leakage and cracking at the construction joint of the infill wall at the top of a frame structure building, and a structure for preventing leakage and cracking at the construction joint 4 at the top of the exterior wall of a frame 1 structure building, including a connector 3. The connector 3 includes a connector plate 31 and a leveling part. The connector plate 31 can cover the construction joint 4 between the frame 1 and the infill wall 2. The connector plate 31 includes a fixing part and a connecting part. The fixing part is fixed to the frame 1. The connecting part covers the construction joint 4. The connecting part is coated with a non-curing waterproof adhesive layer 6 for connecting with the plaster layer 5 coated on the infill wall 2. The non-curing waterproof adhesive layer 6 has extensibility. The non-curing waterproof adhesive layer can be selected from polyurethane waterproof coating, acrylic waterproof coating, non-curing rubber asphalt waterproof coating, etc. The leveling part is located on the surface of the connecting plate 31 away from the building exterior wall. The leveling part is set along the construction joint 4. The distance from the leveling part to the frame 1 fixed to the fixing part is not greater than the thickness of the plaster layer 5 coated on the frame 1. Preferably, the connecting plate 31 and the leveling part are made of stainless steel or PE material.

[0025] Among them, see Figure 4 The leveling part includes a snap-fit ​​seat 32 and a telescopic leveling component 33. The snap-fit ​​seat 32 has several snap-fit ​​positions along the thickness direction of the plaster layer 5. The telescopic leveling component 33 can be snapped and fixed at any snap-fit ​​position. The snap-fit ​​position is a serrated structure formed on the snap-fit ​​seat 32. The telescopic leveling component 33 is provided with hooks that can engage with the serrated structure on the snap-fit ​​seat 32. At the same time, the snap-fit ​​seat 32 and the telescopic leveling component 33 form a hollow tubular structure with an opening in the length direction of the construction joint 4. In the above structure, the snap-fit ​​seat 32 and the connecting plate 31 are integrally formed. The serrated structure on the snap-fit ​​seat 32 can be set on the outside or inside of the snap-fit ​​seat 32, and the hooks on the telescopic leveling component 33 can cooperate with it. Figure 4 The serrated structure shown is located on the inside.

[0026] The length of the snap-fit ​​seat 32 in the thickness direction of the plaster layer 5 is 10-15mm, and the length of the telescopic leveling component 33 in the thickness direction of the plaster layer 5 is 10-15mm.

[0027] The distance between adjacent card slots ranges from 2 to 5 mm.

[0028] The connecting plate 31 can be connected and fixed to the frame 1 by a fastener or by applying a non-curing waterproof adhesive layer 2 between the connecting plate 31 and the frame 1. The non-curing waterproof adhesive layer 2 and the non-curing waterproof adhesive layer 1 can be made of the same material. The fastener can be screws or the like. Similarly, both fixing methods can be used at the same time. For example, in this embodiment, a non-curing waterproof adhesive layer 2 can be applied between the connecting plate 31 and the building exterior wall (including both the frame 1 and the infill wall 2). At the same time, several connection fixing holes 34 are opened on the connecting plate 31, and the fastener passes through the connection fixing holes 34 to fix the connecting plate 31 to the frame 1.

[0029] This solution also provides a method for preventing leakage and cracking at construction joints in the infill walls of frame structures using the above-mentioned structure, including the following steps: S1: Process the base surface of frame 1 and infill wall 2, such as roughening and brushing with water in the prior art. This part of the process is to facilitate the application of plaster layer 5. S2: Strip-shaped sealing waterproof adhesive is bonded to the frame and infill wall to cover the construction joint. The strip-shaped sealing waterproof adhesive can have the same characteristics as the non-cured waterproof adhesive layer 2 mentioned above, or it can be used alone, such as butyl (rubber) 7 or a material with similar properties. By setting this step, moisture or water vapor in the subsequent plastering mortar can be prevented from entering the construction joint. S3: Fix the connector 3 to the frame 1, either by adhering it to the non-cured waterproof adhesive layer 2 or by using bolts, etc. S4: Adjust the position of the expansion leveling piece 33 on the snap-fit ​​seat 32 according to the required thickness of the plaster layer 5, so as to facilitate the leveling of the plaster layer 5. This part of the process can be interchanged with step S2, that is, first adjust the position of the expansion leveling piece 33, and then fix the connector 3 on the frame 1. S5: Perform plastering work on frame 1 and infill wall 2 respectively. Determine the thickness of plaster layer 5 by measuring the position of the expansion leveling component 33 and the end face away from frame 1. S6: The plaster layer 5 applied to the infill wall 2 is connected to the card seat by a non-curing waterproof adhesive layer; S7: After the plastering work is completed, move the expansion leveling piece toward the connecting plate so that it snaps into the snap position closest to the connecting plate. Then fill the depression between the plaster layer and the connecting piece with structural adhesive 8 and level it. This achieves the connection and waterproofing between the plaster layers on both sides of the snap seat. In this step, the structural adhesive 8 can replace the non-curing waterproof adhesive layer to achieve the continuity of the entire plaster layer. Under the action of the structural adhesive itself, the problem of plaster layer cracking can be prevented.

[0030] In the above process, the expansion leveling component 33 plays the role of leveling by screeding. Depending on the actual use needs, plastering or non-curing waterproof adhesive can be applied to its end face to ensure the continuity of the overall outer surface of the plaster layer 5.

[0031] Working principle and process: This solution uses the connecting plate 31 on the connector 3 to fix it to the frame 1, and the connecting plate 31 covers the construction joint 4, allowing the plaster layer 5 to be applied onto the connecting plate 31. This eliminates the need for injecting sand into the construction joint 4. Furthermore, by applying a flexible, non-curing waterproof adhesive layer 6 to the joint and connecting it to the plaster layer 5 applied to the infill wall 2, the connection between the two is flexible. Since there is no rigid connection between the connector 3 and the infill wall 2, within the flexible range of the non-curing waterproof adhesive layer 6, there is... This product effectively avoids stress concentration and cracking of the plaster layer 5 caused by deformation at construction joint 4. Simultaneously, by setting up a leveling section, it objectively acts as a screed. By adjusting the position of the telescopic leveling component 33 within the leveling section, it effectively assists in leveling during subsequent plastering operations, saving the steps of creating plaster spots and screeds, thus improving plastering efficiency. This product serves two purposes in one, both preventing cracking of the plaster layer 5 at construction joint 4 and acting as a screed, making it highly economical in building exterior wall construction.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building, characterized in that: Includes a connector (3), the connector (3) includes a connector plate (31) and a leveling part, the connector plate (31) can cover the construction joint (4) between the frame (1) and the infill wall (2), the connector plate (31) includes a fixing part and a connecting part, the fixing part is fixed to the frame (1), the connecting part covers the construction joint (4), the connecting part is coated with a non-curing waterproof adhesive layer (6) for connecting with the plaster layer (5) coated on the infill wall (2), the non-curing waterproof adhesive layer (6) has extensibility; The leveling part is located on the surface of the connecting plate (31) away from the building exterior wall. The leveling part is set along the construction joint (4). The distance from the leveling part to the frame (1) fixed to the fixing part is not greater than the thickness of the plaster layer (5) coated on the frame (1).

2. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 1, characterized in that: The leveling part includes a snap-fit ​​seat (32) and a telescopic leveling component (33). The snap-fit ​​seat (32) has several snap-fit ​​positions along the thickness direction of the plaster layer (5). The telescopic leveling component (33) can be snapped and fixed at any snap-fit ​​position.

3. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 2, characterized in that: The snap-fit ​​position is a serrated structure formed on the snap-fit ​​base (32), and the telescopic leveling member (33) is provided with a snap hook that can snap into the serrated structure on the snap-fit ​​base (32).

4. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 3, characterized in that: The snap-fit ​​seat (32) and the expansion leveling component (33) are combined to form a hollow tubular structure with an opening in the length direction of the construction joint (4).

5. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 2, characterized in that: The length of the card holder (32) in the thickness direction of the plaster layer (5) is 10-15mm, and the length of the telescopic leveling component (33) in the thickness direction of the plaster layer (5) is 10-15mm.

6. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 2, characterized in that: The distance between adjacent card slots is 2-5mm.

7. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 1, characterized in that: The connecting plate (31) and the leveling part are made of stainless steel or PE material.

8. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 1, characterized in that: The connecting plate (31) is connected and fixed to the frame (1) by a fastener.

9. The structure for preventing leakage and cracking at the construction joint of the infill wall in a frame structure building according to claim 1, characterized in that: A non-curing waterproof adhesive layer 2 is applied between the connecting plate (31) and the building exterior wall.

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