A wall waterproofing surface fastening structure

Abstract

A wall waterproofing fastening structure includes a sleeve, a fastening bolt, and a waterproofing blanket. The sleeve is embedded in the wall and has an axially oriented insertion hole. The insertion hole includes a first section and a second section, with the diameter of the first section smaller than that of the second section to create a stepped surface within the insertion hole. The fastening bolt is inserted into the first section, with a protruding cap at one end. A limiting rib is located at the end of the fastening bolt facing the second section and abuts against the stepped surface. A groove is formed axially in the first section. The waterproofing blanket has an annular skirt with an inner diameter between the protruding cap and the outer diameter of the fastening bolt. The skirt is fitted onto the first end of the fastening bolt and is confined between the outer end face of the sleeve and the protruding cap. This design, through the sleeve and fastening bolt, allows for convenient and quick installation without causing wall cracks and water seepage. It effectively solves the problem in existing technologies where waterproofing blankets are fixed with screws, which can damage the wall and potentially cause water seepage upon removal.

Description

Technical Field

[0001] This utility model relates to the technical field of wall waterproofing, and more specifically to a wall waterproofing surface fastening structure. Background Technology

[0002] In the field of building waterproofing, especially in the waterproofing construction of walls in structures such as basements and tunnels, it is often necessary to fix waterproofing materials (such as waterproofing blankets) to the waterproofing surface of the wall. Currently, the commonly used fixing method in the industry is to directly nail the waterproofing blanket to the wall using screws or nails.

[0003] While this method of fixing with screws is simple and direct, it has significant drawbacks in practical applications. Specifically, nailing the waterproof blanket to the wall requires removing the screws during subsequent maintenance, repair, or replacement. This disassembly process is not only inconvenient but also damages the integrity of the waterproof surface by leaving holes in the wall, potentially causing cracks and water seepage. This severely affects the overall waterproofing effect and long-term safety of the wall. Utility Model Content

[0004] The purpose of this utility model is to provide a wall waterproofing surface fastening structure that is easy to assemble and disassemble and will not damage the wall.

[0005] To solve the above problems, this utility model provides a wall waterproofing fastening structure, including a sleeve, a fastening bolt, and a waterproof blanket. The sleeve is embedded in the wall and has an axially extending insertion hole that extends to the outside of the wall. The insertion hole includes a first section near the outside of the wall and a second section away from the outside of the wall. The diameter of the first section is smaller than that of the second section, so that a stepped surface is formed inside the insertion hole. The fastening bolt is inserted into the first section. The end of the fastening bolt facing the outside of the wall has a convex cap with a diameter larger than that of the first section. The end of the fastening bolt facing the second section has a limiting rib that abuts against the stepped surface. The first section has an axially extending groove through which the limiting rib can pass. The waterproof blanket has an annular skirt with an inner diameter between the convex cap and the outer diameter of the fastening bolt. The skirt is fitted onto the first end of the fastening bolt and is confined between the outer end face of the sleeve and the convex cap.

[0006] In the above scheme, the sleeve is used to be directly inserted into the waterproof surface of the wall after the concrete is poured. When the waterproof blanket needs to be laid after the wall has cured, first rotate the fastening bolt so that the limiting rib is aligned with the groove. At this time, the fastening bolt can be taken out from the insertion hole. Then, the end of the fastening bolt with the limiting rib is passed through the inner ring of the skirt strip of the waterproof blanket and reinserted into the insertion hole until the limiting rib enters the second hole section. At this time, rotate the fastening bolt again so that the limiting rib abuts against the step surface. At this time, the fastening bolt is fixed relative to the insertion hole, and the skirt strip is restricted between the outer end face of the sleeve and the convex cap, thus realizing the fixation of the waterproof blanket relative to the waterproof surface of the wall.

[0007] Compared with existing technologies, the above solution, through the design of a sleeve and a fastening bolt, allows for easy and quick installation of the waterproof blanket by simply rotating the fastening bolt and reinserting it when needed. Furthermore, when the waterproof blanket needs to be removed, simply rotating the fastening bolt and pulling it out, and then reinserting the fastening bolt, restores the smoothness of the waterproof surface of the wall. Since the sleeve is pre-embedded in the wall, it will not cause cracks or water seepage. This effectively solves the problem of existing technologies that use screws to fix the waterproof blanket, which can damage the wall and potentially cause water seepage during removal.

[0008] In an improved embodiment, the outer peripheral wall of the fastening bolt is in contact with the wall of the first hole segment, thereby improving the stability of the fastening bolt within the first hole segment.

[0009] In an improved embodiment, the limiting rib is U-shaped with its closed side connected to the fastening bolt. The two ends of the limiting rib protrude from the outer peripheral wall of the fastening bolt. The sliding grooves are two in number and symmetrically distributed on the left and right sides of the first hole section to allow the two ends of the limiting rib to pass through. This structure can effectively improve the stability of the limiting rib after it comes into contact with the step surface and improve the pull-out resistance of the fastening bolt in the insertion hole.

[0010] In an improved embodiment, the U-shaped opening side of the limiting rib is provided with an arc-shaped spring piece, which is used to open the U-shaped opening of the limiting rib, thereby ensuring that the U-shaped opening of the limiting rib is opened and ensuring the contact stability between the limiting rib and the step surface.

[0011] In an improved embodiment, one end of the back limiting rib of the convex cover is provided with a groove, which makes it easier for the operator to twist the convex cover and the fastening bolt through the groove, making the fastening bolt easier to install and remove.

[0012] In an improved embodiment, the outer diameter of the convex cover is smaller than the outer diameter of the sleeve, thereby creating a certain gap between the convex cover and the wall to facilitate the accommodation of the skirt strip.

[0013] In an improved embodiment, the thickness of the skirt strip is less than the thickness of the waterproof blanket. The thinner the skirt strip, the more effectively it can be fixed between the outer end face of the sleeve and the convex cap.

[0014] In an improved embodiment, both the sleeve and the fastening bolt are made of plastic, which provides good corrosion resistance and allows for rapid molding using injection molds, resulting in low cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a wall waterproofing surface fastening structure and its overall structure within the wall. Figure 2 This is a schematic diagram showing the fit between a sleeve and a fastening bolt in a wall waterproofing fastening structure. Figure 3 An exploded schematic diagram of a sleeve and fastening bolt for a wall waterproofing surface fastening structure; Figure 4 A top view schematic diagram of a sleeve and fastening bolt for a wall waterproofing surface fastening structure; Figure 5 For along Figure 4 Schematic diagram of the sectional view along section AA.

[0016] Explanation of reference numerals in the attached figures. 1. Sleeve; 11. Insertion hole; 11a. First hole section; 11b. Second hole section; 12. Slide groove; 13. Stepped surface; 2. Fastening bolt; 21. Protruding cap; 21a. Groove; 22. Limiting rib; 23. Spring; 3. Waterproof blanket; 31. Skirting strip; 4. Wall. Detailed Implementation

[0017] It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0018] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0019] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Please see Figures 1-5 This utility model provides a wall waterproofing fastening structure, including a sleeve 1, a fastening bolt 2, and a waterproof blanket 3. The sleeve 1 is embedded in the wall 4 and has an axially extending insertion hole 11 that extends to the outside of the wall 4. The insertion hole 11 includes a first hole section 11a near the outside of the wall 4 and a second hole section 11b away from the outside of the wall 4. The diameter of the first hole section 11a is smaller than that of the second hole section 11b, so that a stepped surface 13 is formed inside the insertion hole 11. The fastening bolt 2 is inserted into the first hole section 11a, with the fastening bolt 2 facing the outside of the wall 4. One end of the fastener 2 is provided with a convex cap 21 and the diameter of the convex cap 21 is larger than the diameter of the first hole section 11a. The end of the fastener 2 facing the second hole section 11b is provided with a limiting rib 22 and the limiting rib 22 abuts against the step surface 13. The first hole section 11a is provided with a sliding groove 12 along the axial direction for the limiting rib 22 to pass through. The waterproof blanket 3 is provided with an annular skirt band 31 and the inner diameter of the skirt band 31 is between the outer diameter of the convex cap 21 and the outer diameter of the fastener 2. The skirt band 31 is used to be sleeved to the first end of the fastener 2 and is restricted between the outer end face of the sleeve 1 and the convex cap 21.

[0022] In the above scheme, the sleeve 1 is used to be directly inserted into the waterproof surface of the wall 4 after the concrete is poured. When the waterproof blanket 3 needs to be laid after the wall 4 has cured, the fastening bolt 2 is rotated first so that the limiting rib 22 is aligned with the slide groove 12. At this time, the fastening bolt 2 can be taken out from the insertion hole 11. Then, the end of the fastening bolt 2 with the limiting rib 22 is passed through the inner ring of the skirt band 31 of the waterproof blanket 3 and then reinserted into the insertion hole 11 until the limiting rib 22 enters the second hole section 11b. At this time, the fastening bolt 2 is rotated again so that the limiting rib 22 abuts against the step surface 13. At this time, the fastening bolt 2 is fixed relative to the insertion hole 11, and the skirt band 31 is restricted between the outer end face of the sleeve 1 and the convex cover 21, thus realizing the fixation of the waterproof blanket 3 relative to the waterproof surface of the wall 4.

[0023] It should be noted that multiple sleeves 1 can be pre-embedded in the wall 4 along the horizontal direction, and multiple skirt strips 31 are set on the upper side of the waterproof blanket 3 along the horizontal direction. The sleeves 1 and skirt strips 31 correspond one to one, thereby ensuring the fixing effect of the waterproof blanket 3 relative to the wall 4.

[0024] Compared with existing technologies, the above solution, through the design of sleeve 1 and fastening bolt 2, allows for easy and quick installation of the waterproof blanket 3 by simply rotating the fastening bolt 2 and re-inserting it when installation is required. Furthermore, when the waterproof blanket 3 needs to be removed, simply rotating the fastening bolt 2 and pulling it out, and then reinserting the fastening bolt 2 into the insertion hole 11, restores the smoothness of the waterproof surface of the wall 4. Since sleeve 1 is pre-embedded within the wall 4, it will not cause cracks or water seepage in the wall 4. This effectively solves the problem in existing technologies where fixing the waterproof blanket 3 with screws damages the wall 4 and may cause water seepage during removal.

[0025] In this embodiment, the outer peripheral wall of the fastening bolt 2 is in contact with the hole wall of the first hole segment 11a, thereby improving the stability of the fastening bolt 2 within the first hole segment 11a.

[0026] The limiting rib 22 is preferably U-shaped and the closed side of the U-shape is connected to the fastening bolt 2. The two ends of the limiting rib 22 protrude from the outer peripheral wall of the fastening bolt 2. There are two sliding grooves 12, which are symmetrically distributed on the left and right sides of the first hole section 11a so that the two ends of the limiting rib 22 can pass through. After adopting this structure, the stability of the limiting rib 22 after it abuts against the step surface 13 can be effectively improved, and the pull-out resistance of the fastening bolt 2 in the insertion hole 11 can be improved.

[0027] Furthermore, the U-shaped opening side of the limiting rib 22 is provided with an arc-shaped spring piece 23. The spring piece 23 is used to open the U-shaped opening of the limiting rib 22, thereby ensuring that the U-shaped opening of the limiting rib 22 is opened and ensuring the contact stability between the limiting rib 22 and the step surface 13.

[0028] As an improvement to this embodiment, one end of the back limiting rib 22 of the convex cover 21 is provided with a groove 21a. The groove 21a is preferably in the shape of a straight line, so that the operator can easily turn the convex cover 21 and the fastening bolt 2 with a screwdriver, making the fastening bolt 2 easier to install and remove.

[0029] In addition, the outer diameter of the convex cover 21 is preferably slightly smaller than the outer diameter of the sleeve 1, so that a certain gap can be formed between the convex cover 21 and the wall 4, which is convenient for the skirt strip 31 to be accommodated.

[0030] In this embodiment, the thickness of the skirt strip 31 is less than the thickness of the waterproof blanket 3. The thinner the skirt strip 31 is, the more effectively it can be fixed between the outer end face of the sleeve 1 and the convex cover 21.

[0031] Both the sleeve 1 and the fastening bolt 2 are preferably made of plastic, which has good corrosion resistance and can be quickly processed by injection molding, resulting in low cost.

[0032] It should be noted that in the description of this application, the terms "inner" and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. All directional indications (such as up, down, left, right, front, back, inner, and outer) are only used to explain the relative positional relationships and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wall waterproofing surface fastening structure, characterized in that, The device includes a sleeve (1), a fastening bolt (2), and a waterproof blanket (3). The sleeve (1) is embedded in the wall (4) and has an axially extending insertion hole (11) that extends to the outside of the wall (4). The insertion hole (11) includes a first hole section (11a) near the outside of the wall (4) and a second hole section (11b) away from the outside of the wall (4). The diameter of the first hole section (11a) is smaller than that of the second hole section (11b) so that a stepped surface (13) is formed inside the insertion hole (11). The fastening bolt (2) is inserted into the first hole section (11a). The end of the fastening bolt (2) facing the outside of the wall (4) is provided with a convex cap (21). The diameter of the convex cap (21) is larger than that of the first hole section (11a). The fastening bolt (2) is provided with a limiting rib (22) at one end facing the second hole section (11b) and the limiting rib (22) abuts against the step surface (13). The first hole section (11a) is provided with a sliding groove (12) along the axial direction for the limiting rib (22) to pass through. The waterproof blanket (3) is provided with an annular skirt band (31) and the inner diameter of the skirt band (31) is between the outer diameter of the convex cap (21) and the fastening bolt (2). The skirt band (31) is used to be sleeved to the first end of the fastening bolt (2) and is restricted between the outer end face of the sleeve (1) and the convex cap (21).

2. The wall waterproofing surface fastening structure according to claim 1, characterized in that, The outer peripheral wall of the fastening bolt (2) is in contact with the hole wall of the first hole segment (11a).

3. The wall waterproofing surface fastening structure according to claim 2, characterized in that, The limiting rib (22) is U-shaped and the closed side of the U-shape is connected to the fastening bolt (2). The two ends of the limiting rib (22) protrude from the outer peripheral wall of the fastening bolt (2). There are two grooves (12) symmetrically distributed on the left and right sides of the first hole section (11a) so that the two ends of the limiting rib (22) can pass through.

4. The wall waterproofing surface fastening structure according to claim 3, characterized in that, The U-shaped opening side of the limiting rib (22) is provided with an arc-shaped spring piece (23), which is used to open the U-shaped opening of the limiting rib (22).

5. The wall waterproofing surface fastening structure according to claim 1, characterized in that, The back-limiting rib (22) of the convex cover (21) has a groove (21a) at one end.

6. The wall waterproofing surface fastening structure according to claim 1, characterized in that, The outer diameter of the convex cover (21) is smaller than the outer diameter of the sleeve (1).

7. The wall waterproofing surface fastening structure according to claim 1 or 6, characterized in that, The thickness of the skirt strip (31) is less than the thickness of the waterproof blanket (3).

8. The wall waterproofing surface fastening structure according to any one of claims 1-6, characterized in that, Both the sleeve (1) and the fastening bolt (2) are made of plastic.

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