Precast, waterproofing structure and method of repairing a water stop leak

Abstract

The application discloses a prefabricated part, a waterproof structure and a waterproof leakage repairing method. The prefabricated part comprises a prefabricated fixed part, a body structure part and an attachment connecting part. The prefabricated fixed part comprises a connecting part. The body structure part comprises a first sealing connecting part, a protection part and a second sealing connecting part which are connected in sequence. The first sealing connecting part and the second sealing connecting part are extended along opposite ends of the protection part in the same direction to form a containing part. The protection part is provided with the attachment connecting part on one side of the containing part. The body structure part is connected with the prefabricated fixed part through the attachment connecting part. The attachment connecting part is connected with the connecting part in position. The first sealing connecting part is sealingly connected with a structural wall. The second sealing connecting part is extended to a sealing connection position between the structural wall and a window frame. The prefabricated part is sealingly connected with the structural wall through the first sealing connecting part which extends into a finish layer and a thermal insulation layer. External water flowing along the structural wall to the indoor through the window frame is blocked outside the prefabricated part, so that the problem of leakage caused by the external water flowing along the structural wall to the indoor is solved.

Description

Technical Field

[0001] This application belongs to the field of building waterproofing construction technology, and in particular relates to a prefabricated component, waterproof structure and a method for repairing water-stopping and seepage prevention. Background Technology

[0002] Currently, there are three methods used to repair leaks in window frames. One method is to apply a transparent waterproof material to the original finish layer; another method is to remove the interior and exterior finish layers, clean the expanding foam between the window frame and the building structure, reapply sealant, fill the gaps with plaster, apply a new waterproof layer, and then restore the finish layer; the last method is to inject grout into the leaking area of ​​the window frame, either from the inside or outside, to seal the leak and prevent further leakage.

[0003] However, the above three repair methods have the problems of not being able to effectively prevent external water from flowing down the gun structure wall into the room, or having a large amount of construction work and being difficult to operate. Summary of the Invention

[0004] This application provides a prefabricated component, a waterproof structure, and a method for repairing water leakage. It can prevent external water from continuing to flow down the vertical gaps between structural walls, through the window frame, and into the room. It also blocks external water flowing down the structural wall through the window frame to the outside of the window frame through the prefabricated component, thus solving the problem of leakage caused by external water flowing down the wall into the room.

[0005] In a first aspect, this application provides a prefabricated component, comprising: a prefabricated fastener including a connecting portion; a main body structural component including a first sealing connecting portion, a protective portion, and a second sealing connecting portion that are successively intersected and connected, wherein the first sealing connecting portion and the second sealing connecting portion extend in the same direction from opposite ends of the protective portion along a first direction to form a semi-enclosed receiving portion, and an attachment connector is provided on the surface of the protective portion facing the receiving portion, and the main body structural component is connected to the prefabricated fastener through the attachment connector; in the use state, the prefabricated fastener is pre-fixed to the leakage part between the wall structure and the window frame, and the attachment connector can be aligned and positioned with the connecting portion; the first sealing connecting portion is used to extend into the finishing layer and the insulation layer to seal and connect with the structural wall; the second sealing connecting portion is used to extend to the connection between the structural wall and the window frame to seal and connect.

[0006] According to one embodiment of this application, the first sealing connection portion extends along the length direction and is provided with a sealing cavity and a grouting hole communicating with the sealing cavity.

[0007] According to one embodiment of this application, protrusions extending toward the center of the sealing cavity are respectively provided along the upper inner wall and the lower inner wall of the sealing cavity.

[0008] According to one embodiment of this application, the protrusion is in any of the following shapes: threaded, elongated, or serrated.

[0009] According to one aspect of the embodiment of this application, the attachment connector is located between the first sealing connection portion and the second sealing connection portion.

[0010] According to one aspect of the embodiment of this application, the attachment connector is located in the middle between the first sealing connection and the second sealing connection.

[0011] According to one embodiment of this application, the second sealing connection and the protective part form an angle α, wherein 60°≤α≤90°.

[0012] According to one embodiment of this application, the second sealing connection portion and the protective portion form an angle α, wherein 90°<α≤120°

[0013] According to one embodiment of this application, the attachment connector is fastened to the prefabricated fastener.

[0014] According to one embodiment of this application, the second sealing connection extends to be sealed to the window frame.

[0015] According to one embodiment of this application, a fastening portion and a fastening cavity for fastening connection are provided between the attachment connector and the connecting portion.

[0016] Secondly, this application provides a waterproof structure, comprising: a structural wall located above or below a window frame; an insulation layer disposed on the outer facade of the structural wall; a finishing layer disposed on the side of the insulation layer away from the structural wall; and the aforementioned prefabricated components, wherein a prefabricated fastener is fixed to the leakage point between the structural wall and the window frame, and the main structural component is aligned and connected to the connection portion of the prefabricated fastener via an attachment connector; a first sealing connection portion extends into the finishing layer and the insulation layer and seals with the structural wall, and a second sealing connection portion extends to the connection point between the structural wall and the window frame for sealing.

[0017] According to one embodiment of this application, the first sealing connection portion extends into the finishing layer and the insulation layer through a sealing material and is sealed to the structural wall.

[0018] According to one embodiment of this application, the second sealing connection extends to the connection between the structural wall and the window frame and is sealed by a sealing material.

[0019] According to one embodiment of this application, the second sealing connection extends to the connection between the structural wall and the window frame and is sealed to the window frame by a sealing material.

[0020] According to one embodiment of this application, the sealing material is selected from elastic sealant and non-curing rubber asphalt waterproof coating.

[0021] Thirdly, this application provides a method for repairing water-stopping and seepage prevention, using the aforementioned prefabricated components, including:

[0022] An installation groove, at least partially extending into the finishing layer and insulation layer, is made along the outer facade of the structural wall at the upper or lower part of the window frame.

[0023] Prefabricated fasteners are fixed at the leakage points between the mounting groove and the window frame;

[0024] Install the main structural component onto the prefabricated fastener, aligning and connecting the attachment of the main structural component with the connection of the prefabricated fastener; extend the first sealing connection into the finishing layer and insulation layer to the structural wall, sealing the first sealing connection with the structural wall, insulation layer, and finishing layer; extend the second sealing connection to the connection between the structural wall and the window frame for sealing; or extend the second sealing connection to the connection between the structural wall and the window frame for sealing.

[0025] The prefabricated components, waterproof structure, and water-stopping and seepage prevention repair method of this application embodiment, without affecting the building facade effect or removing the existing finishing layer and insulation layer, uses the first sealing connection part of the main structural component to extend into the finishing layer and insulation layer and seal it with the structural wall, forming a horizontal blocking layer to block external water, preventing external water from continuing to flow down the gap between the vertical direction of the structural wall 1 through the window frame 4 into the room; and the second sealing connection part extends to the connection between the structural wall and the window frame for sealing connection, blocking the external water flowing down the structural wall through the window frame to the outside of the window frame through the prefabricated component, thereby solving the problem of leakage caused by external water flowing down the structural wall into the room. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the prefabricated component provided in Embodiment 1 of this application;

[0028] Figure 2 This is a schematic diagram of the waterproof structure provided in Embodiment 2 of this application;

[0029] Figure 3 yes Figure 2 Enlarged view of a local structure in the image;

[0030] Figure 4 This is a schematic diagram of a waterproof structure according to another embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Structural wall; 2. Insulation layer; 3. Finishing layer; 4. Window frame; 5. Main structural component; 51. First sealing connection; 510. Sealing cavity; 511. Protrusion; 512. Grouting hole; 52. Protective part; 53. Second sealing connection; 54. Fastening part; 55. Attachment connector; 56. Fastening cavity; 6. Prefabricated fastener; 7. Connection part; 8. Screw; 9. Sealing material; 10. Mounting groove; 11. Expanding foam; 12. Drip part; α. Angle between the second sealing connection and the main structural component;

[0033] D1, First direction; S, Same side; L, Length direction of the first sealing connection. Detailed Implementation

[0034] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0036] The applicant of this application discovered, in the process of improving the three existing repair methods mentioned in the background section:

[0037] The first repair method involves applying a transparent waterproofing material over the original finish layer to create a new waterproof layer. This only works on the surface of the finish layer, allowing external water to easily seep through the gaps between the insulation layer and the building structure, bypassing the new waterproof layer. The second method, removing the internal or external finish layer, reapplying sealant, and installing a new waterproof layer, involves a large amount of construction work and lacks a cohesive look for the facade, often resulting in color variations and an unsightly appearance. The third method, injecting grout into the leaking areas of the window frame from the inside or outside, is prone to deformation if the injection pressure is not properly controlled. Furthermore, the existing expanding foam between the window frame and the building structure makes the grouting less effective at preventing water seepage.

[0038] In order to solve the above-mentioned problems in the prior art, the applicant of this application has made improvements to the prior art. The embodiments of this application provide a prefabricated component, a waterproof structure, and a repair method for window frame leakage.

[0039] The prefabricated components provided in the embodiments of this application will be described below first. Figure 1 A schematic diagram of the structure of the prefabricated component provided in an embodiment of this application is shown. For example... Figure 1 As shown, the prefabricated component includes: a prefabricated fixing component 6, including a connecting part 7; a main body structural component 5, including a first sealing connecting part 51, a protective part 52, and a second sealing connecting part 53 that are successively connected. The first sealing connecting part 51 and the second sealing connecting part 53 extend from opposite ends of the protective part 52 along the first direction D1 to the same side S to form a semi-enclosed receiving part. The surface of the protective part 52 facing the receiving part is provided with an attachment connecting part 55. The main body structural component 5 is connected to the prefabricated fixing component 6 through the attachment connecting part 55. In the use state, the prefabricated fixing component 6 is pre-fixed to the leakage part between the structural wall 1 and the window frame 4. The attachment connecting part 55 can be aligned and connected with the connecting part 7. The first sealing connecting part 51 is used to extend into the finishing layer 3 and the insulation layer 2 to seal and connect with the structural wall 1. The second sealing connecting part 53 is used to extend to the connection between the structural wall 1 and the window frame 4 for sealing and connection.

[0040] The prefabricated component of this application embodiment, without affecting the building facade effect or removing the existing finishing layer and insulation layer, extends into the finishing layer and insulation layer through the first sealing connection part of the main structural component and seals with the structural wall, forming a horizontal blocking layer to block external water. This prevents external water from continuing to flow down through the gap between the structural wall 1 and the insulation layer 2 in the vertical direction, or through the gap between the insulation layer 2 and the finishing layer 3, and into the room through the window frame 4. The second sealing connection part extends to the connection between the structural wall and the window frame for sealing connection. That is, the semi-enclosed receiving part formed by the first sealing connection part, the protective part and the second sealing connection part adapts to the shape between the structural wall and the window frame, and surrounds the area between the structural wall and the window frame for waterproof protection. The external water flowing down the structural wall through the window frame is blocked outside the window frame by the prefabricated component, thereby solving the problem of leakage caused by external water flowing down the structural wall into the room.

[0041] In some optional embodiments of this application, the first sealing connection 51 is sealed to the structural wall 1, the insulation layer 2, and the finishing layer 3. This sealing connection can be achieved by pre-applying a sealing slurry to the mounting groove 10 where it is installed, and then installing the first sealing connection 51 into the mounting groove 10 and pressing the sealing slurry to achieve the sealing connection.

[0042] In some optional embodiments of this application, such as Figure 1-3 As shown, the first sealing connection part 51 extends along its length direction L and is provided with a sealing cavity 510 and a grouting hole 512 communicating with the sealing cavity 510. The sealing cavity 510 is located inside the first sealing connection part 51 and is used to inject and fill sealing material. After the sealing material is injected into the sealing cavity through the grouting hole 512, it fully fills the gaps between the first sealing connection part 51 and the structural wall 1, the insulation layer 2, and the finishing layer 3, achieving a sealing connection and forming a transverse barrier layer that blocks external water. This prevents external water from continuing to flow down through the vertical gaps between the structural wall 1 and the insulation layer 2, and between the insulation layer 2 and the finishing layer 3, through the window frame 4 and into the room, thus solving the problem of leakage caused by external water flowing down through the window frame into the room through the vertical gaps between the structural wall 1 and the insulation layer 2, and between the insulation layer 2 and the finishing layer 3. The setting of the grouting hole 512 and the sealing cavity 510 makes the operation of forming a sealing structure more convenient and results in a better sealing effect.

[0043] In some optional embodiments of this application, such as Figure 3 As shown, the length of the first sealing connection 51 extending into the finishing layer 3 and the insulation layer 2 is less than the total thickness of the finishing layer 3 and the insulation layer 2, so that after the sealing material 9 is injected into the sealing cavity 510 through the grouting hole 512, it can flow from the end of the sealing cavity 510 near the structural wall 1 to the periphery in the installation groove 10, and fully contact the structural wall 1, the insulation layer 2, and the finishing layer 3 to form a sealing connection, and form an end connected to the structural wall 1 and the insulation layer 2, thereby enhancing the connection strength between the sealing material and the structural wall 1 and the insulation layer 2.

[0044] In some optional embodiments of this application, protrusions 511 extending toward the center of the sealing cavity 510 are respectively provided along the upper inner wall and the lower inner wall of the sealing cavity 510. For example... Figure 3 As shown, the protrusion 511 extends downward from the upper inner wall and upward from the lower inner wall of the sealing cavity 510, that is, it extends towards the middle of the sealing cavity 510.

[0045] In some optional embodiments of this application, the protrusion 511 is in any of the following shapes: threaded, elongated, or serrated.

[0046] For example, such as Figure 1-3 As shown, the protrusions 511 are threaded and are respectively disposed in the sealing cavity 510 of the first sealing connection part 51, away from the upper and lower side walls of the first sealing connection part 51.

[0047] In the embodiments of this application, the protrusion 511 can enhance the connection strength between the sealing material and the first sealing connection 51, and can also form a waterproof barrier between multiple sealing materials 9 and the first sealing connection 51 to prevent external water from seeping into the room through the gap between the sealing cavity 510 and the sealing material 9.

[0048] In some optional embodiments of this application, such as Figure 1 , 2 As shown in Figure 3, the prefabricated fastener 6 is connected to the structural wall 1 by screws 8 passing through the finishing layer 3 and the insulation layer 2, so as to fix the prefabricated fastener 6 and attach the connecting piece 55 on the prefabricated fastener 6, thereby positioning and connecting the main structural component.

[0049] In some optional embodiments of this application, the attachment connector 55 is located between the first sealing connection portion 51 and the second sealing connection portion 53 to fix the body structure 5 in place.

[0050] In some optional embodiments of this application, the attachment connector 55 is located in the middle between the first sealing connection portion 51 and the second sealing connection portion 53, which facilitates the installation of the main body structure 5.

[0051] In some optional embodiments of this application, the attachment connector 55 is fastened to the prefabricated fastener 6. This fastening connection allows for convenient and quick installation of the main structural component 5 at the leaking area between the window frame 4 and the structural wall 1, facilitating maintenance and repair work.

[0052] In some optional embodiments of this application, a fastening part 54 and a fastening cavity 56 for fastening connection are provided between the attachment connector 55 and the connecting part 7. By engaging the fastening part 54 in the fastening cavity 56, the fastening connection between the attachment connector 55 and the connecting part 7 of the prefabricated fastener 6 is achieved.

[0053] It is understood that the fastening part 54 is provided on the attachment connector 55, and the corresponding fastening cavity 56 is provided at the corresponding position on the connecting part 7 of the prefabricated fastener 6, so as to fasten the connection; the fastening part 54 may also be provided on the prefabricated fastener 6, and the corresponding fastening cavity 56 is provided at the corresponding position on the attachment connector 55, so as to fasten the connection.

[0054] It is understood that the snap-fit ​​connection method is not limited to the method mentioned in the embodiments of this application, but may also be other snap-fit ​​connection methods that enable the main body structural component and the prefabricated fastener to be quickly connected and fixed.

[0055] For example, the wing plates on both sides of the prefabricated fastener 6 are changed to be inclined, the overall length is shortened, and they are only spaced apart at the locations where bolts are present. Soft elastic steel is used, which can deform when pressed.

[0056] In some optional embodiments of this application, the second sealing connection 53 extends to be sealed to the window frame 4.

[0057] In some optional embodiments of this application, the second sealing connection 53 and the protective part 52 form an angle α, wherein 60°≤α≤90°.

[0058] For example, the values ​​of angle α can be selected as 63°, 65°, 68°, 70°, 72°, 74°, 75°, 81°, 83°, 85°, 87°, and 89°. Figure 1 and 2 As shown, since the protective part 52 of the main body structural member 5 is attached to the decorative layer 3 in the vertical direction, and the second sealing connection part 53 forms an angle α with the main body structural member 5, external water can flow downward along the outer wall of the main body structural member 5 and drip off at the outer end of the angle α at the connection between the main body structural member 5 and the second sealing connection part 53. That is, external water is discharged along the connection between the main body structural member and the second sealing connection part, and will not flow into the room along the second sealing connection part 53 to the connection with the window frame 4. This solves the problem of external water flowing into the room from the leakage part between the structural wall 1 and the window frame 4 between the first sealing connection part 51 and the second sealing connection part 53.

[0059] In the embodiments of this application, prefabricated components with 60°≤α≤90° are suitable for situations where water leakage occurs at the connection between the upper part of the window frame and the structural wall.

[0060] like Figure 4As shown, the prefabricated component is connected to the lower window frame 4, and the second sealing connection 53 and the protective part 52 form an angle α, where 90° < α ≤ 120°. Exemplarily, the included angle α between the second sealing connection 53 and the protective part 52 can be selected as 95°, 98°, 100°, 110°, 115°, or 118°, meaning the second sealing connection 53 can also form an obtuse angle with the vertically positioned protective part 52, so that external water collected at the top of the window frame 4 is discharged to the outside through the window frame 4, the second sealing connection 53, and the protective part 52, and will not flow downwards through the gaps between the structural wall 1 and the insulation layer 2, or between the insulation layer 2 and the finishing layer 3. A drip section 12 is provided at the connection between the first sealing connection 51 and the protective section 52 to drip water that has been blocked outside the precast component by the second sealing connection 53 and the protective section 52, preventing it from seeping into the window frame or leaking into the room through the gap between the finishing layer and the insulation layer or the gap between the insulation layer and the structural wall.

[0061] Secondly, embodiments of this application provide a waterproof structure, comprising: the aforementioned prefabricated component; a structural wall 1 located above or below the window frame 4; an insulation layer 2 disposed on the outer facade of the structural wall 1; a finishing layer 3 disposed on the side of the insulation layer 2 away from the structural wall 1; a prefabricated fastener 6 fixed to the leaking area between the structural wall 1 and the window frame 4; a main structural component 5 aligned and connected to the connecting portion 7 of the prefabricated fastener 6 via an attachment connector 55; a first sealing connection portion 51 extending into the finishing layer 3 and the insulation layer 2 to seal and connect with the structural wall 1; and a second sealing connection portion 53 extending to the connection between the structural wall 1 and the window frame 4 to seal and connect with the window frame 4.

[0062] The waterproof structure of this application embodiment repairs the leakage area between the structural wall and the window frame using prefabricated components including prefabricated fasteners and main structural components. The first sealing connection of the main structural component extends into the finishing layer and the insulation layer and seals with the structural wall, forming a horizontal blocking layer that prevents external water from continuing to flow down through the gap between the structural wall 1 and the insulation layer 2 in the vertical direction, or through the gap between the insulation layer 2 and the finishing layer 3, and into the room through the window frame 4. The second sealing connection extends to the connection between the structural wall and the window frame for sealing connection. That is, the semi-enclosed receiving part formed between the first sealing connection, the protective part and the second sealing connection adapts to the shape between the structural wall and the window frame, enclosing the area between the structural wall and the window frame to form a sealed waterproof structure for waterproof protection. The prefabricated component blocks the external water flowing down the structural wall and through the window frame to the outside of the window frame, thereby solving the problem of leakage caused by external water flowing down the structural wall into the room.

[0063] In some optional embodiments of this application, the first sealing connection 51 extends into the finishing layer 3 and the insulation layer 2 through a sealing material and is sealed to the structural wall 1.

[0064] In some optional embodiments of this application, the second sealing connection 53 extends to the connection between the structural wall 1 and the window frame 4 and is sealed with a sealing material to prevent external water from leaking into the room through the connection between the second sealing connection 53 of the main body structural member 5 and the window frame 4.

[0065] In some optional embodiments of this application, the second sealing connection 53 extends to the connection between the structural wall 1 and the window frame 4 and is sealed to the window frame 4 with a sealing material, so that external water is sealed outside the window frame 4 and cannot enter the room through the gap or leakage between the window frame and the structural wall.

[0066] In some optional embodiments of this application, the sealing material 9 is selected from elastic sealants and non-curing rubber asphalt waterproof coatings. Exemplarily, the elastic sealant may be silicone sealant, polysulfide sealant, polyurethane sealant, or butyl sealant. Non-curing rubber asphalt waterproof coatings are available from commercially available sources.

[0067] It is understood that sealing materials known in the art can be used to seal the first sealing connection and / or the second sealing connection.

[0068] Thirdly, embodiments of this application provide a method for repairing water-stopping and seepage prevention, using the aforementioned prefabricated components, including:

[0069] S1. Create an installation groove on the upper or lower part of the window frame along the outer facade of the structural wall that extends at least partially into the finishing layer and insulation layer into the structural wall.

[0070] S2. Fix the prefabricated fastener at the leakage point between the mounting groove and the window frame;

[0071] S3. Install the main structural component onto the prefabricated fastener, aligning and connecting the attachment of the main structural component with the connection of the prefabricated fastener; extend the first sealing connection into the finishing layer and insulation layer to the structural wall, sealing the first sealing connection with the structural wall, insulation layer and finishing layer; extend the second sealing connection to the connection between the structural wall and the window frame for sealing connection.

[0072] In the embodiments of this application, the water-stopping and seepage-proofing repair method uses prefabricated components to seal and connect the gaps or leakage points between the window frame and the structural wall, as well as the gaps between the structural wall and its outer facade building materials. This forms a transverse blocking layer between the structural wall, insulation layer, and finishing layer, preventing external water from flowing down through the gap between the structural wall 1 and the insulation layer 2 in the vertical direction, or through the gap between the insulation layer 2 and the finishing layer 3, and into the room via the window frame 4. Furthermore, a second sealing connection extends to the connection between the structural wall and the window frame for sealing and connection. Specifically, a semi-enclosed receiving portion formed between the first sealing connection, the protective portion, and the second sealing connection adapts to the shape between the structural wall and the window frame, enclosing the area between the structural wall and the window frame to form a sealed waterproof structure for waterproof protection. This prevents external water flowing down the structural wall and through the window frame from reaching the outside of the window frame, allowing the external water to drain out along the connection between the main structural component and the second sealing connection, thereby solving the problem of leakage caused by external water flowing down the structural wall into the room.

[0073] In some optional embodiments of this application, the method for repairing water-stopping and seepage prevention uses the aforementioned prefabricated components, including:

[0074] S1. Create an installation groove on the upper or lower part of the window frame along the outer facade of the structural wall that extends at least partially into the finishing layer and insulation layer into the structural wall.

[0075] S2. Fix the prefabricated fastener at the leakage point between the mounting groove and the window frame;

[0076] S3. Install the main structural component onto the prefabricated fastener, aligning and connecting the attachment of the main structural component with the connection of the prefabricated fastener; extend the first sealing connection into the finishing layer and insulation layer to the structural wall, sealing the first sealing connection with the structural wall, insulation layer, and finishing layer; extend the second sealing connection to the connection between the structural wall and the window frame, sealing it with the window frame. This ensures that external water flowing from the outer surface of the second sealing connection to the window frame is below the height of the window frame, preventing external water from entering the room through the window frame and providing better sealing and waterproofing.

[0077] Example Section

[0078] Example 1

[0079] A precast component, such as Figure 1As shown, the prefabricated component includes: a prefabricated fixing component 6, including a connecting part 7; a main body structural component 5, including a first sealing connecting part 51, a protective part 52, and a second sealing connecting part 53 that are successively connected. The first sealing connecting part 51 and the second sealing connecting part 53 extend from opposite ends of the protective part 52 along the first direction D1 to the same side S to form a semi-enclosed receiving part. The surface of the protective part 52 facing the receiving part is provided with an attachment connecting part 55. The main body structural component 5 is connected to the prefabricated fixing component 6 through the attachment connecting part 55. In the use state, the prefabricated fixing component 6 is pre-fixed to the leakage part between the structural wall 1 and the window frame 4. The attachment connecting part 55 can be aligned and connected with the connecting part 7. The first sealing connecting part 51 is used to extend into the finishing layer 3 and the insulation layer 2 to seal and connect with the structural wall 1. The second sealing connecting part 53 is used to extend to the connection between the structural wall 1 and the window frame 4 to seal and connect with the window frame 4.

[0080] like Figure 1 As shown, the first sealing connection part 51 extends along the length direction L and is provided with a sealing cavity 510 and a grouting hole 512 communicating with the sealing cavity 510. The sealing cavity 510 is used to inject and fill the sealing material 9. In this embodiment, the sealing material 9 is silicone sealant. After the sealing material 9 is injected into the sealing cavity 510 through the grouting hole 512, the first sealing connection part 51 is sealed and connected with the structural wall 1, the insulation layer 2, and the finishing layer 3, forming a transverse barrier layer that blocks external water. This prevents external water from continuing to flow down the gaps between the vertical parts of the structural wall 1 through the window frame 4 into the room, thus solving the problem of leakage caused by external water flowing down the structural wall through the window frame into the room.

[0081] like Figures 1 to 3 As shown, threaded protrusions 511 opposite to the first sealing connection part 51 are respectively provided on the upper and lower inner walls of the sealing cavity 510. The protrusions 511 can enhance the connection strength between the sealing material and the first sealing connection part 51, and can also form multiple waterproof barriers between the sealing material 9 and the first sealing connection part 51 to prevent external water from seeping into the room through the gap between the sealing cavity 510 and the sealing material 9.

[0082] like Figure 1 As shown, the attachment connector 55 is disposed in the middle between the first sealing connection part 51 and the second sealing connection part 53 to fix the main body structure 5 and the prefabricated fastener 6.

[0083] The prefabricated fastener 6 is pre-fixed to the structural wall 1 by screws 8 passing through the finishing layer 3 and the insulation layer 2. The prefabricated fastener 6 is then fixed so that it can be fastened to the attached connector 55 through the connecting part 7. The fastening connection method allows the main structural component 5 to be quickly and easily installed at the leakage point between the window frame and the outer facade of the structural wall, which is convenient for maintenance personnel.

[0084] like Figure 1 As shown, a fastening cavity 56 and a fastening part 54 are provided between the attachment connector 55 and the connection part of the prefabricated fastener 6. The fastening part 54 is provided on the attachment connector 55, and the corresponding fastening cavity 56 is provided at the corresponding position on the connection part 7 of the prefabricated fastener 6. By fastening the fastening part 54 in the fastening cavity 56, the fastening connection between the attachment connector 50 and the prefabricated fastener 6 is realized.

[0085] like Figure 1 As shown, the second sealing connection 53 and the protective part 52 of the main structural member 5 form an angle α of 85°. Since the protective part 52 is attached to the decorative layer 3 in a vertical direction, the angle α between the second sealing connection 53 and the protective part 52 allows external water to flow downward along the outer wall of the protective part 52 and drip off at the outer end of the angle α at the connection between the protective part 52 and the second sealing connection 53. This prevents external water from flowing into the room along the second sealing connection 53 towards the window frame 4, thus solving the problem of external water flowing into the room from the leakage point between the structural wall 1 and the window frame 4 between the first sealing connection 51 and the second sealing connection 53.

[0086] Example 2

[0087] A method for repairing water-stopping and seepage prevention, using the prefabricated component of Example 1, includes:

[0088] Along the outer facade of the structural wall 1 at the upper part of the window frame 4, the insulation layer 2 and the decorative layer 3 on the outer side of the upper part of the structural wall 1 are cut by a cutting machine to create an installation groove 10 that extends at least partially into the decorative layer 3 and the insulation layer 2 into the structural wall 1.

[0089] The prefabricated fastener 6 is fixedly installed in the structural wall 1 by screws 8 passing through the finishing layer 3 and the insulation layer 2 between the mounting groove 10 and the window frame 4;

[0090] Install the main structural component 5 onto the prefabricated fixing component 6, and fasten the fastening part 54 of the attachment connector 55 of the main structural component 5 into the fastening cavity 56 of the connecting part 7 of the prefabricated fixing component 6, so that the attachment connector 55 of the main structural component 5 and the connecting part 7 of the prefabricated fixing component 6 are aligned and positioned; extend the first sealing connection part 51 into the finishing layer 3 and the insulation layer 2 to the structural wall 1, and use silicone sealant as the sealing material to inject grout into the sealing cavity 510 through the grouting hole 512 on the first sealing connection part 51. The silicone sealant fully fills the threaded gap between the sealing cavity 510 and the protrusion 511, sealing the first sealing connection 51 to the structural wall 1, the insulation layer 2, and the finishing layer 3. The second sealing connection 53 extends to the connection between the structural wall 1 and the window frame 4, and silicone sealant is used to seal the gap between the end of the second sealing connection 53 and the window frame 4. The silicone sealant can contact the expanding foam 11 to seal the end of the second sealing connection 53 to the window frame 4, forming a seal. Figure 2 and 3 The waterproof structure shown.

[0091] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A prefabricated component for repairing leaks between a structural wall (1) and a window frame (4), characterized in that, The prefabricated component includes: Prefabricated fastener (6), including connecting part (7); The main body structural component (5) includes a first sealing connection part (51), a protective part (52), and a second sealing connection part (53) that are connected in succession. The first sealing connection part (51) extends along the length direction and is provided with a sealing cavity (510) and a grouting hole (512) communicating with the sealing cavity (510). The first sealing connection part (51) and the second sealing connection part (53) are formed by the protective part (52) extending in the same direction from opposite ends along the first direction to form a semi-enclosed receiving part. The protective part (52) is provided with an attachment connector (55) on the surface facing the receiving part. The main body structural component (5) is connected to the prefabricated fixing part (6) through the attachment connector (55). In use, the prefabricated fastener (6) is pre-fixed to the leakage part between the structural wall (1) and the window frame (4), and the attachment connector (55) can be aligned and connected with the connection part (7); the first sealing connection part (51) is used to extend into the finishing layer (3) and the insulation layer (2) to seal the connection with the structural wall (1); the second sealing connection part (53) is used to extend to the connection between the structural wall (1) and the window frame (4) for sealing connection.

2. The prefabricated component according to claim 1, characterized in that, The attachment connector (55) is located between the first sealing connection (51) and the second sealing connection (53); and / or The attachment connector (55) is fastened to the prefabricated fastener (6); and / or The second sealing connection (53) extends to be sealed to the window frame (4).

3. The precast component according to claim 2, characterized in that, A protrusion (511) extending toward the center of the sealing cavity (510) is provided along the upper inner wall and the lower inner wall of the sealing cavity (510); and / or The attachment connector (55) is located in the middle between the first sealing connection (51) and the second sealing connection (53); and / or A fastening part (54) and a fastening cavity (56) for fastening connection are provided between the attachment connector (55) and the connecting part (7).

4. The precast component according to claim 3, characterized in that, The protrusion (511) is in any of the following shapes: threaded, elongated, or serrated.

5. The prefabricated component according to claim 1, characterized in that, The second sealing connection (53) and the protective part (52) form an angle α, wherein 60°≤α≤90° or 90°<α≤120°.

6. A waterproof structure, characterized in that, include: The prefabricated component is the prefabricated component as described in any one of claims 1-5; The structural wall (1) is located above or below the window frame (4); The insulation layer (2) is provided on the outer facade of the structural wall (1); The finishing layer (3) is disposed on the side of the insulation layer (2) away from the structural wall (1); The prefabricated fastener (6) is fixed to the part between the structural wall (1) and the window frame (4) where leakage occurs. The main structural component (5) is aligned and connected to the connecting part (7) of the prefabricated fastener (6) through the attachment connector (55). The first sealing connection part (51) extends into the finishing layer (3) and the insulation layer (2) and is sealed to the structural wall (1). The second sealing connection part (53) extends to the connection between the structural wall (1) and the window frame (4) and is sealed to the window frame (4).

7. The waterproof structure according to claim 6, characterized in that, The first sealing connection (51) extends into the finishing layer (3) and the insulation layer (2) through a sealing material and is sealed to the structural wall (1).

8. The waterproof structure according to claim 6, characterized in that, The second sealing connection (53) extends to the connection between the structural wall (1) and the window frame (4) and is sealed by a sealing material; or The second sealing connection (53) extends to the connection between the structural wall (1) and the window frame (4) and is sealed to the window frame (4) by sealing material.

9. The waterproof structure according to claim 7 or 8, characterized in that, The sealing material is selected from elastic sealant and non-curing rubber asphalt waterproof coating.

10. A method for repairing water-stopping and seepage prevention, characterized in that, The prefabricated component as described in any one of claims 1-5 includes: An installation groove is made at least partially extending into the finishing layer and the insulation layer to the structural wall along the outer facade of the structural wall at the upper or lower part of the window frame; The prefabricated fastener is fixed at the leakage point between the mounting groove and the window frame; Install the main structural component onto the prefabricated fastener, aligning and positioning the attachment connector of the main structural component with the connection portion of the prefabricated fastener; extend the first sealing connection portion into the finishing layer and the insulation layer to the structural wall, sealing the first sealing connection portion with the structural wall, the insulation layer, and the finishing layer; extend the second sealing connection portion to the connection between the structural wall and the window frame for sealing; or extend the second sealing connection portion to the connection between the structural wall and the window frame for sealing with the window frame.

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