A through-board waterproof structure

Abstract

The utility model relates to a technology field of through -plate sleeve structure especially, a kind of through -plate waterproof structure, including the through -hole for being used for pipe through being arranged on floor, the through -hole is provided with accommodating groove in floor upside one end, the accommodating groove is coaxial with through -hole, the diameter of accommodating groove is greater than the diameter of through -hole and depth is less than the depth of through -hole, for the sleeve pipe through of pipeline passes through the through -hole and accommodating groove, the waterproof filler for fixing sleeve pipe is equipped in the accommodating groove, the pipeline passes through sleeve pipe and passes through floor, flexible filler is arranged between the inner wall of sleeve pipe and the outer wall of pipeline, the outer side end of sleeve pipe is provided with waterproof ointment, effectively solve the leakage problem existing in traditional through -plate pipeline waterproof structure, improve the waterproof performance and service life of building, reduce the risk of later water seepage leakage.

Description

Technical Field

[0001] This utility model relates to the field of through-plate waterproof structure technology, and in particular to a through-plate waterproof structure. Background Technology

[0002] With the implementation of plans to accelerate the transformation of urban development and vigorously carry out urban renewal initiatives, the renovation and comprehensive management of old residential areas have covered key towns and cities across the country, and the scale is still expanding year by year. In the process of renovation and comprehensive management, it is inevitable that many cases will occur where openings are made in the already built floor slabs to bury through-hole pipes. In addition, even in new construction projects, there are a large number of cases where changes have resulted in the subsequent opening of openings to bury through-hole pipes.

[0003] The conventional method for creating openings through slabs involves drilling holes with a water drill, directly embedding a sleeve, and sealing it with concrete, or applying a waterproof membrane or coating to the water-facing side for waterproofing. Chinese patent document CN118442481A discloses a method for waterproofing post-installed pipe penetration sleeves, but the waterproofing structure inside the opening is still inadequate, making this area a major source of leakage. Therefore, this technical solution is proposed to improve upon this approach. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies where pipes installed through floor slabs often leak, and to provide a through-slab waterproof structure that achieves multi-layer waterproofing inside the floor slab.

[0005] This utility model is achieved through the following technical solution: a through-slab waterproof structure, including a through hole in the floor slab for pipe penetration, a receiving groove provided at one end of the through hole on the upper side of the floor slab, the receiving groove being coaxially arranged with the through hole, the diameter of the receiving groove being larger than the diameter of the through hole and the depth being less than the depth of the through hole, a sleeve for pipe passage passing through the through hole and the receiving groove, a waterproof filler for fixing the sleeve being provided inside the receiving groove, the pipe passing through the sleeve to penetrate the floor slab, a flexible filler being provided between the inner wall of the sleeve and the outer wall of the pipe, and a waterproof sealant being provided at the outer end of the sleeve.

[0006] Furthermore, the water-facing end of the sleeve extends above the upper surface of the floor slab.

[0007] Furthermore, the sleeve has an ear plate on its side that abuts against the bottom of the receiving groove, and the inner side of the sleeve is flush with the inner side of the floor slab.

[0008] Furthermore, the receiving groove is a frustum-shaped structure with a large outer diameter and a small inner diameter, and the inner wall of the receiving groove is provided with a toothed groove structure to increase friction.

[0009] Furthermore, the waterproof filler is a leak-stopping agent coating layer applied to the surface of the toothed structure, the ear plate is applied to the upper part of the leak-stopping agent coating layer, and JS waterproof coating is applied to the upper surface of the ear plate and the side wall of the receiving groove.

[0010] Furthermore, a self-compacting concrete for filling gaps is provided on the upper part of the JS waterproof coating layer inside the receiving groove.

[0011] Furthermore, the outer surface of the self-compacting concrete, the side of the sleeve protruding from the floor slab, and the outer surface of the floor slab are all coated with JS waterproof coating.

[0012] Furthermore, a crack-preventing water-stop strip or building sealant is provided at the junction of the side wall of the sleeve and the self-compacting concrete, and the outer surface of the water-stop strip or building sealant is coated with JS waterproof coating.

[0013] Furthermore, the depth of the receiving groove is 1 / 2 to 2 / 3 of the floor slab.

[0014] Furthermore, the flexible filler is hemp rope.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. For pipes that are drilled after being installed in the floor slab, a sleeve can be pre-installed inside the through hole to reduce direct contact between the pipe and the floor slab and provide more space for waterproofing construction.

[0017] 2. The outer side of the sleeve should be higher than the upper surface of the floor slab. This will form an effective waterproof barrier on the water-facing side, preventing water from seeping into the room through the gap between the sleeve and the floor slab.

[0018] 3. Apply expanding cement mortar between the lower sleeve of the ear plate and the through hole to improve the stability of the sleeve installation, ensure that the sleeve is firmly installed and not easily loosened.

[0019] 4. Through multiple layers of sealing coating and JS waterproof coating, the waterproofing effect is guaranteed, effectively solving the leakage problem of traditional through-slab pipe waterproofing structures, improving the waterproofing performance and service life of buildings, and reducing the risk of water seepage and leakage in the later stages. Attached Figure Description

[0020] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0021] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0022] The components include: 1. Floor slab; 101. Leak-stopping agent coating; 102. JS waterproof coating; 103. Self-compacting concrete; 2. Sleeve; 201. Ear plate; 3. Water-stopping strip; 4. Pipe; 5. Flexible filler; 6. Expansion cement mortar. Detailed Implementation

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Example 1

[0026] Figure 1-2 As shown: This utility model proposes a through-slab waterproof structure, mainly including a through hole in the floor slab. On one side of the upper surface of the floor slab 1, a receiving groove is set around the through hole. The receiving groove is a frustum structure with a larger top and a smaller bottom. A sleeve is set coaxially inside the through hole and the receiving groove. The pipe 4 is set inside the sleeve. The floor slab can be of various types, such as brick-concrete structure floor slab or concrete structure floor slab. The diameter of the drilled hole is 10cm larger than the diameter of the pipe 4, and the diameter of the sleeve 2 is 5cm larger than the diameter of the pipe 4. The diameter of the through hole drilled in the floor slab 1 should be determined according to the outer diameter of the pipe 4, and is generally 10cm larger than the outer diameter of the pipe 4 to ensure that the sleeve 2 and the pipe 4 can pass through smoothly.

[0027] The receiving groove is created by widening the pre-drilled through-hole from the top of the floor slab along its perimeter, and chiseling out a slanted groove along the perimeter. The inner wall of the receiving groove is roughened. The widening range is 15cm to 20cm, and the depth of the receiving groove is 1 / 2 to 2 / 3 of the floor slab thickness. The bottom center of the receiving groove is leveled to facilitate the positioning and installation of sleeve 2. A layer of leak-stopping agent 101 is applied to the inner wall of the receiving groove for the first step of waterproofing. The leak-stopping agent 101 is evenly applied to the surface of the groove structure to enhance its application effect. The leak-stopping agent has the characteristics of rapid curing, high strength, and good waterproof performance, which can effectively fill the tiny gaps in the receiving groove and prevent water penetration.

[0028] A lug plate 201 is horizontally installed on the side wall of the sleeve 2. The lug plate 201 is placed on the sealing agent coating layer 101 at the bottom of the receiving groove. The receiving groove can fix the position of the sleeve 2. After the sealing agent coating dries, the first coat of JS waterproof coating 102 is applied to the outer wall of the sleeve 2, the surface of the lug plate 201 and the sealing agent coating layer 101. The coating range extends to the elevation surface at the junction of the sleeve 2 and the floor slab. The second layer of waterproofing treatment is done using JS waterproof coating 102. JS waterproof coating is a two-component water-based waterproof coating with good flexibility, water resistance and adhesion. In the part on the side wall of the receiving groove, it can be tightly bonded with the sealing agent coating layer 101 to form a reliable waterproof layer and improve the waterproofing effect.

[0029] After the first layer of JS waterproof coating 102 has dried (approximately 24 hours), self-compacting concrete 103 is applied on top of the first layer of JS waterproof coating inside the receiving groove to fill the gaps inside the groove. A water-stop strip 3 is then attached around the top edge of the sleeve 2, flush with the upper surface of the floor slab 1. The self-compacting concrete 103 presses and fixes the water-stop strip 3 in place. The self-compacting concrete 103 used has high fluidity and self-compacting properties, enabling it to automatically fill the gaps in the receiving groove without vibration, ensuring a dense filling and preventing voids and cracks. A second layer of JS waterproof coating 102 is applied on the surface of the self-compacting concrete 103, extending to the top of the sleeve 2 and covering the upper part of the floor slab with a width of approximately 250mm around the excavated receiving groove.

[0030] Since there will be a gap at the bottom of the sleeve 2 and below the ear plate 201, expansion cement mortar 6 is provided on the side of the lower part of the sleeve 2 and in the gap between the lower part of the ear plate 201 and the through hole to ensure that the sleeve 2 is installed firmly. The inner side of the sleeve 2 should be flush with the inner side of the floor slab 1 to ensure the flatness and aesthetics of the interior decoration.

[0031] A flexible filler 5, made of hemp rope, is installed between the sleeve 2 and the pipe 4. Hemp rope has good flexibility and water absorption, providing cushioning and sealing between the pipe 4 and the sleeve 2. A waterproof sealant is applied to the top to prevent water seepage along the pipe 4 and to prevent damage to the waterproof layer due to vibration or displacement during use. The waterproof structure of the through-sleeve 2 constructed through the above specific implementation method effectively solves the leakage problem existing in traditional through-pipe 4 waterproof structures, improves the waterproof performance and service life of the building, and ensures the effectiveness of use.

[0032] The main operational methods during implementation are as follows:

[0033] Step 1: First, mark the location on the floor slab and position the pipes according to their different functions. Then, use a water drill to make holes with a diameter equal to the diameter of pipe 4 plus 10cm.

[0034] Step 2: Select sleeve 2 with a diameter of pipe 4 plus 5cm. Then, widen the existing through hole from the top of the floor slab to create a receiving groove. Remove the inclined groove around the through hole and roughen the surface. The widening range is 15cm to 20cm. The depth of the receiving groove is 1 / 2 to 2 / 3 of the slab thickness H. The middle part should be chiseled as flat as possible to facilitate the placement of the waterproof sleeve 2.

[0035] Step 3: Clean the inside of the container tank, apply the sealant along the roughened inner wall, smooth the groove structure and allow grout to overflow. After the sealant coating 101 has dried, place the waterproof sleeve 2 and press the ear plate 201 onto the sealant coating 101 at the bottom of the container tank.

[0036] Step 3: Apply the first coat of JS waterproof coating 102 to the inside of the ear plate 201 and the receiving groove. The coating extends to the elevation surface at the junction of the sleeve 2 and the floor slab. After the JS waterproof coating 102 has dried (about 24 hours), attach a ring of water-stopping strip 3 to the outer edge of the sleeve 2 that is flush with the outer edge of the floor slab 1. The elevation should be the same as the floor slab surface.

[0037] Step 4: Pour self-compacting concrete 103 inside the receiving tank. The self-compacting concrete 103 is cured with a membrane. After seven days, apply the top layer of JS waterproof coating 102, up to the top of the sleeve 2, with a width of about 250mm around the drilled hole.

[0038] Step 5: Below the lower ear plate of the sleeve, between the sleeve 2 and the through hole, use expanding cement mortar 6 to ensure a tight seal. Then install the pipe 4, and fill the space between the sleeve 2 and the pipe 4 with flexible flame-retardant sealing material, such as hemp rope. Seal the top with waterproof sealant to prevent water seepage along the pipe 4. Finally, the overall pipe 4 installation structure and construction are completed, improving the waterproof performance and service life of the building and ensuring the effectiveness of use.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A through-slab waterproofing structure, comprising through holes provided in the floor slab for pipe penetration, characterized in that: A receiving groove is provided at one end of the through hole on the upper side of the floor slab. The receiving groove is coaxial with the through hole. The diameter of the receiving groove is larger than the diameter of the through hole and the depth is smaller than the depth of the through hole. A sleeve for the pipe to pass through is provided to pass through the through hole and the receiving groove. Waterproof filler for fixing the sleeve is provided inside the receiving groove. The pipe passes through the floor slab through the sleeve. Flexible filler is provided between the inner wall of the sleeve and the outer wall of the pipe. Waterproof sealant is provided at the outer end of the sleeve.

2. The through-plate waterproof structure according to claim 1, characterized in that: The water-facing end of the sleeve extends above the upper surface of the floor slab.

3. The through-plate waterproof structure according to claim 1, characterized in that: The sleeve has an ear plate on its side that abuts against the bottom of the receiving groove, and the inner side of the sleeve is flush with the inner side of the floor slab.

4. The through-plate waterproof structure according to claim 3, characterized in that: The receiving groove is a frustum-shaped structure with a large outer diameter and a small inner diameter, and the inner wall of the receiving groove is provided with a toothed groove structure to increase friction.

5. The through-plate waterproof structure according to claim 4, characterized in that: The waterproof filler is a leak-stopping agent coating layer applied to the surface of the toothed structure. The ear plate is placed on top of the leak-stopping agent coating layer. JS waterproof coating is applied to the upper surface of the ear plate and the side wall of the receiving groove.

6. The through-plate waterproof structure according to claim 5, characterized in that: The upper part of the JS waterproof coating layer inside the receiving tank is provided with self-compacting concrete to fill the gaps.

7. The through-plate waterproof structure according to claim 6, characterized in that: The outer surface of the self-compacting concrete, the side of the sleeve protruding from the floor slab, and the outer surface of the floor slab are all coated with JS waterproof coating.

8. The through-plate waterproof structure according to claim 6, characterized in that: The side wall of the sleeve is provided with a water-stop strip or building sealant to prevent cracking at the junction with the self-compacting concrete, and the outer surface of the water-stop strip or building sealant is provided with JS waterproof coating.

9. The through-plate waterproof structure according to claim 1, characterized in that: The depth of the receiving groove is 1 / 2 to 2 / 3 of the floor slab.

10. The through-plate waterproof structure according to claim 1, characterized in that: The flexible filler is hemp rope.

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