Anti-seepage structure of building outer wall

Abstract

The utility model relates to a building outer wall anti-leakage structure, which relates to the field of building waterproofing, and comprises an inserting part, a connecting part and a connecting part, the connecting part is arranged at the end of the inserting part and used for forming a connecting plane, and a through hole is formed in the middle of the connecting part and extends from the inner ring surface of the inserting part; the brim part is arranged in the axis direction of the inserting part, one end of the brim part is connected to the connecting part, and the other end of the brim part penetrates through the upper portion of the hole to play a shielding role. According to the utility model, the plug-in part is used for fixing, the connecting part is used for plane sealing, and the shielding part is used for shielding at the connecting position of the bolt, so that the normal use of the mounting hole is ensured, a multi-level waterproof barrier is formed, and the leakage risk is reduced.

Description

A building exterior wall waterproofing structure Technical Field

[0001] This utility model relates to the field of building waterproofing, and in particular to a seepage-proof structure for building exterior walls. Background Technology

[0002] Exterior wall leakage is a common building quality problem. Improper construction or failure of building materials that are meant to provide waterproofing can lead to exterior wall leakage. Areas such as the outer edges of windows, eaves, and decorative moldings on the exterior walls are prone to leakage due to frequent water accumulation.

[0003] Currently, a Chinese patent application with publication number CN220247236U and publication date of December 26, 2023, proposes a waterproof structure for the exterior wall of a window sill, including a main body of the exterior wall and a sealing plate. The sealing plate is abutted against the outer wall of the main body of the exterior wall, and a sealing ring is fixedly installed on the side of the sealing plate near the main body of the exterior wall, which abuts against the inner wall of the main body of the exterior wall. Both ends of the main body of the exterior wall of the exterior wall are provided with a first arc-shaped groove, and both ends of the sealing plate near the main body of the exterior wall of the exterior wall of the exterior wall are provided with a second arc-shaped groove. An arc-shaped rod is fixedly installed inside the first arc-shaped groove, and an arc-shaped plate is movably sleeved on the wall of the arc-shaped rod. One end of the arc-shaped plate is inserted into the corresponding second arc-shaped groove. A limit plate is abutted against the outer side of the sealing plate, and a transmission mechanism for moving the two arc-shaped plates is provided on one side of the limit plate.

[0004] In use, by moving the limiting plate, the arc plate can be driven by the transmission mechanism to slide from the second arc groove to the first arc groove, thereby releasing the limiting of the sealing plate and allowing the sealing plate to be removed for replacement of the aging anti-leakage structure.

[0005] The aforementioned technologies can replace the waterproofing structure of the exterior wall of the window sill. In addition to the window sill, drilling holes for billboards and opening air conditioning holes will damage the waterproofing layer of the exterior wall, making it easy for leaks to occur near the openings. Summary of the Invention

[0006] In order to reduce leakage near the installation hole location when opening installation holes on the exterior wall, this utility model provides a building exterior wall waterproofing structure.

[0007] This utility model provides a waterproof structure for building exterior walls, employing the following technical solution:

[0008] A waterproof structure for building exterior walls includes: a plug-in portion, which is a cylindrical structure and is used to pass through an installation hole in the exterior wall; a connecting portion, which is disposed at the end of the plug-in portion to form a connecting plane, and a through hole is provided in the middle of the connecting portion, which is an extension of the inner annular surface of the plug-in portion; and a brim portion, which is disposed along the axial direction of the plug-in portion, with one end of the brim portion connected to the connecting portion and the other end of the brim portion used to cover the through hole.

[0009] When mounting holes are drilled in the exterior wall, gaps exist between the bolt and the mounting hole after the bolt is inserted, causing rainwater leakage. When sealant is applied between the mounting hole and the bolt, it ages rapidly after direct exposure to sunlight and rainwater, significantly reducing its sealing effectiveness. The above-mentioned technical solution addresses this by first filling the mounting hole in the exterior wall with sealant, then inserting the connector into the mounting hole. The sealant seals the gap between the mounting hole and the connector. Next, the connector is attached to the outer surface of the exterior wall, shielding the sealant between the connector and the mounting hole from direct sunlight. Finally, the bolt is inserted through a through-hole in the connector into the connector, securing it in the mounting hole. The cap above the through-hole further reduces the probability of rainwater leakage from the gap between the bolt and the through-hole.

[0010] In this way, the cylindrical connector is embedded in the mounting hole on the exterior wall to form a supporting structure, allowing the brim to stably cover the hole; the connecting part, which adheres to the exterior wall surface, can shield the sealant between the mounting hole and the connector, reducing the aging rate of the sealant; and the brim, in an umbrella shape, covers the perforation entrance, reducing the probability of rainwater entering the perforation. Through the synergistic effect of the connector, the connection, and the shielding, a multi-layered waterproof barrier is formed while ensuring the normal use of the mounting hole, significantly reducing the risk of leakage.

[0011] Optionally, the end of the brim furthest from the insertion part tapers towards the axis of the insertion part.

[0012] By adopting the above technical solution, the edge of the brim has an inward-curving conical structure. When rainwater flows to the edge of the brim, the inward-curving structure accelerates the water flow to disperse and slide outward, reducing the possibility of water flowing back along the edge of the brim. In this way, the water flow path is optimized through the structural contraction design, improving drainage efficiency and reducing the probability of rainwater accumulating above the brim and flowing back to the wall along the brim.

[0013] Optionally, a drip line is provided on the inner circumferential surface of the brim near the axis, and the drip line is provided along the edge line of the brim that tapers inward.

[0014] By adopting the above technical solution, the drip line forms a raised guiding structure on the inner circumference of the brim. When rainwater flows to the drip line, water droplets gradually gather at the lowest point of the drip line and drip off at the lowest point under the action of gravity, blocking the path of water flowing back along the inner wall of the brim. In this way, by physically cutting off the backflow of rainwater along the inner wall of the brim through the drip line, the risk of rainwater flowing to the perforation and causing leakage at the perforation can be further reduced.

[0015] Optionally, the end of the brim that connects to the connecting part is provided with a slope, the slope intersecting the inwardly tapering edge of the brim at a water flow point, and the height of the water flow point being lower than the connection point between the brim and the connecting part.

[0016] By adopting the above technical solution, the slope forms an inclined guide surface, and the water flow point is the lowest point where the slope and the converging edge line meet. Rainwater flows along the edge line of the slope and the brim to the water flow point and then falls in a concentrated manner, forming a directional drainage trajectory. This can reduce the probability that rainwater will flow along the edge line of the brim to the connection between the brim and the connecting part, thereby reducing the probability that rainwater will flow along the connecting part to the wall surface of the exterior wall, and reducing the local leakage caused by rainwater converging at a certain point on the wall surface.

[0017] Optionally, a groove is provided at one end of the plug portion near the connecting portion, and the groove is used to fill sealant.

[0018] By adopting the above technical solution, a groove surrounds the outer wall of the connector to form an annular adhesive storage space. During construction, after the sealant is injected into the groove, the sealant is inserted into the mounting hole along with the connector. Subsequently, the bolt is inserted into the connector, and the bolt compresses the inner wall of the connector, allowing the sealant in the groove to make more thorough contact with the inner wall of the mounting hole. This effectively fills the gap between the connector and the mounting hole, and forms a continuous sealing ring after the sealant cures. Thus, by using the groove structure to store the sealant, the sealant can be inserted into the mounting hole, achieving a seal between the connector and the wall while reducing the sealant's exposure to direct sunlight and rainwater, thereby enhancing radial waterproofing performance.

[0019] Optionally, the end face of the connecting part facing the insertion part is provided with a sealing groove, and the sealing groove is used to provide a sealing structure.

[0020] By adopting the above technical solution, the sealing groove forms an annular groove at the contact surface between the connection part and the exterior wall. During installation, sealant is filled into the sealing groove or a sealing gasket is embedded. When the nut is connected to the bolt in the mounting hole, the nut will press against the connection part, thereby pressing the connection part against the wall. The sealing gasket or sealant in the sealing groove will seal between the connection part and the wall, providing a secondary sealing structure. This sealing structure between the connection part and the wall, together with the radial seal of the insertion part, forms a three-dimensional waterproof system, further reducing the probability of rainwater leakage from the gap between the waterproof structure of this application and the exterior wall.

[0021] Optionally, the insertion part is provided with a parting line, which is arranged along the axial direction of the insertion part and penetrates the insertion part along the thickness direction of the insertion part.

[0022] By adopting the above technical solution, the parting line cuts the connector into a petal-shaped structure that can elastically deform. During installation, squeezing the petal-shaped structure reduces the diameter of the connector. After being inserted into the mounting hole, the petal-shaped structure elastically recovers and conforms to the wall of the mounting hole. When the bolt passes through the middle of the connector, the bolt pushes the petal-shaped structure outward, increasing the firmness of the connector when it is fixed in the mounting hole. In this way, the connector is designed with adaptive deformation, allowing it to adapt to different hole diameters while improving the sealing stability after installation.

[0023] Optionally, the outer annular surface of the insertion part is further provided with a toothed structure.

[0024] By adopting the above technical solution, the toothed structure forms dense protrusions on the outer surface of the insertion part; when the insertion part is inserted into the mounting hole, the toothed structure embeds itself in the mounting hole, increasing the friction between the insertion part and the mounting hole. This mechanical interlocking action reduces displacement of the insertion part due to external forces or vibrations, improving the long-term stability of the sealing structure.

[0025] In summary, this utility model has at least one of the following beneficial technical effects:

[0026] This application provides a leak-proof structure by setting up a waterproof structure in the mounting holes on the exterior wall. The structure is fixed by a plug-in part, sealed by a connecting part, and covered by a shielding part at the bolt connection position. This ensures the normal use of the mounting holes while forming a multi-level waterproof barrier, reducing the risk of leakage.

[0027] By setting drip lines and water outlets on the brim, the water flow on the brim is directed and diverted, reducing the probability of rainwater flowing down the brim into the mounting holes and further improving waterproof performance.

[0028] Grooves and sealing grooves are provided on the insertion part and the connection part respectively. During installation, sealant is filled into the grooves and sealing grooves respectively to perform secondary sealing between the anti-leakage structure of this application and the wall surface, thereby reducing the probability of rainwater leaking from the installation hole when flowing along the wall. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the installation structure according to an embodiment of the present utility model;

[0030] Figure 2 is a magnified view of part I in Figure 1;

[0031] Figure 3 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0032] Figure 4 is another perspective view of the overall structure of an embodiment of this utility model.

[0033] Explanation of reference numerals in the attached drawings: 100, insertion part; 101, groove; 102, parting line; 200, connecting part; 201, perforation; 202, sealing groove; 300, cap brim; 301, bevel; 302, water flow point; 310, drip line; 400, wall; 401, mounting hole. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to Figures 1 to 4.

[0035] This utility model discloses a waterproof structure for building exterior walls. Referring to Figures 1 to 3, the waterproof structure for building exterior walls mainly includes an integrally formed insertion part 100, a connecting part 200, and a cap part 300. The insertion part 100 is used to be fixed and supported by passing through the mounting hole 401 in the exterior wall. The connecting part 200 is located at the end of the insertion part 100, and the end face of the connecting part 200 facing the insertion part 100 is in contact with the surface of the exterior wall. A through hole 201 is provided in the center of the connecting part 200 for passing through a fixing bolt. The through hole 201 is an extension of the inner annular surface of the insertion part 100. The cap part 300 has an umbrella-shaped structure. One end of the cap part 300 is connected to the edge of the upper half of the connecting part 200 through an arc-shaped transition section, and it covers the through hole 201 above the connecting part 200.

[0036] Referring to Figures 2 and 3, the plug-in part 100 has an overall cylindrical structure, and its outer diameter is adapted to the diameter of the mounting hole 401 on the outer wall. The outer surface of the plug-in part 100 is provided with an annular groove 101. The groove 101 is located at the end where the plug-in part 100 and the connecting part 200 are connected. The groove 101 is formed by pressing the wall thickness of the plug-in part 100 inward. The groove 101 is used to fill the sealant. During construction, sealant is injected into the groove 101. The sealant is inserted into the mounting hole 401 along with the plug-in part 100 in the groove 101. When the bolt is inserted into the plug-in part 100, it presses the inner wall of the plug-in part 100, so that the sealant in the groove 101 fills the gap between the inner wall of the plug-in part 100 and the mounting hole 401.

[0037] Referring to Figures 3 and 4, the outer wall of the insertion part 100 is also provided with an oblique toothed structure. The toothed structure forms an anti-slip texture on the outer ring surface of the insertion part 100, and three equidistant parting lines 102 are opened along the axial direction on the cylindrical wall of the insertion part 100. The parting lines 102 divide the cylindrical body into three lobes that can be elastically opened and closed. During installation, squeezing the lobes can reduce the diameter of the insertion part 100. After the lobes are inserted into the mounting hole 401, the bolt is inserted in the middle of the insertion part 100. The bolt squeezes the lobes outward, so that the insertion part 100 is fixed in the mounting hole 401.

[0038] Referring to Figures 2 and 3, the connecting part 200 is located at the end of the insertion part 100. The connecting part 200 is circular in shape and its diameter is larger than that of the insertion part 100. A through hole 201 is provided in the middle of the connecting part 200, making the connecting part 200 a ring structure. The end face of the connecting part 200 that abuts against the wall is provided with an annular sealing groove 202. The sealing groove 202 is formed by pressing the wall thickness of the connecting part 200 away from the wall. The sealing groove 202 is filled with sealant to seal between the connecting part 200 and the wall. During installation, the sealing groove 202 is filled with sealant. When the nut is connected to the bolt in the mounting hole 401, the nut will press against the connecting part 200, thereby pressing the connecting part 200 against the wall. The sealant in the sealing groove 202, under the pressure of the nut, fills the gap between the connecting part 200 and the wall, thus achieving a sealing effect.

[0039] Referring to Figures 2 and 3, the brim 300 has an umbrella-shaped structure and an opening at the bottom, so that the end of the brim 300 connected to the connecting part 200 has an arc-shaped structure. The brim 300 extends from the connection point with the connecting part 200 to the side away from the wall and gradually converges towards the axis of the insertion part 100 to form a conical cover. The distance from the edge of the converged brim 300 to the axis is less than the radius of the connection point between the connecting part 200 and the brim 300, so that the nut connected to the bolt in the mounting hole 401 can be placed in the middle of the brim 300.

[0040] Referring to 3, an annular drip line 310 is provided on the inner circumferential surface of the brim 300. The drip line 310 is provided along the edge of the brim 300 away from the connecting part 200. The drip line 310 protrudes downward to form a raised guide structure. When rainwater flows to the drip line 310, the water droplets will gradually gather at the lowest position of the drip line 310 and drip off at the lowest position of the drip line 310 under the action of gravity, reducing the probability of rainwater flowing along the inner wall of the brim 300 into the perforation 201.

[0041] Referring to Figure 4, the bottom edge of the connection between the brim 300 and the connecting part 200 is provided with a slope 301 for guiding the flow. The slope 301 and the converging edge of the brim 300 intersect to form a water droplet 302. The height of the water droplet 302 is lower than the connection between the brim 300 and the connecting part 200, forming a water droplet gathering point. After the water droplets gather at the water droplet 302, they drip downwards under the action of gravity.

[0042] The implementation principle of the waterproof structure for building exterior walls according to this utility model embodiment is as follows: During installation, firstly, sealant is injected into the mounting hole 401. Secondly, sealant is injected into the groove 101 of the insertion part 100 and the sealing groove 202 of the connecting part 200. Then, the petals of the insertion part 100 are pressed together and inserted into the hole. The toothed structure on the outer circumference of the insertion part 100 is engaged and fixed with the hole wall. Finally, when the bolt is inserted into the through hole 201, the petals of the insertion part 100 are opened, so that the insertion part 100 is expanded and locked. The sealant in the groove 101 fills the gap between the insertion part 100 and the hole wall under the pressure of the bolt. When the nut is installed on the bolt, the nut abuts against the connecting part 200. When the sealant in the sealing groove 202 is tightly attached to the surface of the exterior wall, a planar seal is formed.

[0043] During rainfall, the brim 300 blocks the rainwater above the perforation 201 of the connecting part 200, allowing rainwater to flow above the brim 300. The drip line 310 below the brim 300 prevents rainwater from flowing back along the brim 300. The slope 301 and the edge of the brim 300 direct the accumulated water to the drainage point 302 for discharge. The adhesive in the sealing groove 202 and the groove 101 forms a double seal between the wall 400 and the insertion part 100 and the connecting part 200, reducing the probability of rainwater leakage from the wall 400.

[0044] In summary, this application provides a leak-proof structure in the mounting hole 401 on the exterior wall, using the plug-in part 100 for fixing, the connecting part 200 for planar sealing, and the shielding part for covering the bolt connection position. This ensures the normal use of the mounting hole 401 while forming a multi-level waterproof barrier, reducing the risk of leakage. The drip line 310 and water flow point 302 on the cap 300 can directionally guide the water flow, reducing the probability of rainwater flowing into the mounting hole 401 along the cap 300, further improving the waterproof performance. The groove 101 and sealing groove 202 on the plug-in part 100 and the connecting part 200 respectively can provide a secondary seal between the leak-proof structure and the wall surface, reducing the probability of rainwater leaking from the mounting hole 401 when flowing along the wall 400.

[0045] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A waterproof structure for building exterior walls, characterized in that, include: The plug-in part (100) is a cylindrical structure and is used to be installed in the mounting hole of the outer wall; the connecting part (200) is provided at the end of the plug-in part (100) to form a connecting plane, and a through hole (201) is provided in the middle of the connecting part (200), and the through hole (201) is an extension of the inner annular surface of the plug-in part (100); the brim part (300) is provided along the axial direction of the plug-in part (100), one end of the brim part (300) is connected to the connecting part (200), and the other end of the brim part (300) is used to cover the through hole (201).

2. The building exterior wall waterproofing structure according to claim 1, characterized in that: The end of the brim (300) away from the plug (100) converges toward the axis of the plug (100).

3. The building exterior wall waterproofing structure according to claim 2, characterized in that: A drip line (310) is provided on the inner circumferential surface of the brim (300) near the axis direction. The drip line (310) is provided along the edge line of the brim (300) that tapers inward.

4. The building exterior wall waterproofing structure according to claim 3, characterized in that: The end of the brim (300) connected to the connecting part (200) is provided with a slope (301). The slope (301) intersects the inward-convex edge line of the brim (300) at the water flow point (302). The height of the water flow point (302) is lower than the connection between the brim (300) and the connecting part (200).

5. A building exterior wall waterproofing structure according to any one of claims 1-4, characterized in that: The insertion part (100) has a groove (101) at one end near the connecting part (200), and the groove (101) is used to fill the sealant.

6. A building exterior wall waterproofing structure according to any one of claims 1-4, characterized in that: The connecting part (200) has a sealing groove (202) on its end face facing the insertion part (100), and the sealing groove (202) is used to provide a sealing structure.

7. A building exterior wall waterproofing structure according to any one of claims 1-4, characterized in that: A parting line (102) is provided on the plug-in portion (100). The parting line (102) is arranged along the axial direction of the plug-in portion (100) and penetrates the plug-in portion (100) along the thickness direction of the plug-in portion (100).

8. A building exterior wall waterproofing structure according to any one of claims 1-4, characterized in that: The outer ring surface of the plug part (100) is also provided with a toothed structure.

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