A hole plugging structure

Abstract

The utility model discloses a hole and hole plugging structure, including filling structure and the annular groove of setting up in the end face of filling structure one, the outer periphery of filling structure and the end face of being away from annular groove are equipped with waterproof layer, and the outer periphery of waterproof layer is equipped with the decorative layer. The utility model discloses simple structure, through modular prefabricated design, only need to insert the plugging structure into hole and carry out simple sealing treatment on the spot, do not need to mix on the spot, inject grout or long -time maintenance, and the period of construction is greatly shortened, reduces the dependence to the skill of worker, promotes the consistency and controllability of construction quality, and through the synergies of filling structure, waterproof layer and decorative layer, the permeability of plugging structure is improved significantly, wherein filling structure has the shrinkage compensation characteristic, and effectively reduces the internal pore, and the waterproof layer can absorb the deformation stress caused by temperature difference, avoids the cracking of plugging structure because of thermal expansion and cold shrink, thereby forms reliable, continuous waterproof barrier.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a hole sealing structure. Background Technology

[0002] During the construction of cast-in-place concrete structures, through-wall tie rods or scaffold wall ties often leave penetrating holes in the exterior walls after removal. Effective sealing is necessary to ensure the integrity, waterproofing, and durability of the building envelope. Currently, the commonly used on-site layered sealing process typically involves filling the holes with expanding foam or ordinary mortar, followed by applying waterproof coating or applying crack-resistant mortar. However, this traditional method has significant drawbacks: firstly, the construction process is cumbersome and highly dependent on manual labor, with the filling density and surface smoothness greatly affected by the worker's skill level; secondly, the layering of different materials on-site results in weak interlayer adhesion, easily leading to interface peeling, hollow areas, and even leakage; thirdly, due to the varying hole sizes on-site, standardized filling is difficult to achieve, resulting in unstable sealing quality. Therefore, a hole sealing structure is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a hole-sealing structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hole sealing structure, including a filling structure and an annular groove formed on one end face of the filling structure, wherein the outer peripheral surface of the filling structure and the end face away from the annular groove are provided with a waterproof layer, and the outer peripheral surface of the waterproof layer is provided with a decorative layer.

[0005] As a further embodiment of this utility model: the filling structure is a micro-expansion cement-based block, which is mixed with polypropylene crack-resistant fibers, and the shape of the filling structure is cylindrical.

[0006] As a further embodiment of this utility model: the waterproof layer is a ring structure, arranged circumferentially along the filling structure, and the ring structure is made of self-adhesive polymer waterproof sheet or water-swellable rubber.

[0007] As a further embodiment of this utility model: the decorative layer is a prefabricated cap, which is arranged circumferentially along the waterproof layer, and the prefabricated cap is made of modified cement mortar.

[0008] As a further embodiment of this utility model, the end face of the prefabricated plug is provided with an annular flange.

[0009] Compared with the prior art, the beneficial effects of this utility model are: This application utilizes a modular prefabrication design, requiring only the insertion of the sealing structure into the hole and simple sealing treatment on-site. No on-site mixing, grouting, or prolonged curing is needed, significantly shortening the construction period, reducing reliance on worker skills, and improving the consistency and controllability of construction quality. Through the synergistic effect of the filling structure, waterproof layer, and decorative layer, the impermeability of the sealing structure is significantly enhanced. The filling structure has shrinkage compensation characteristics, effectively reducing internal porosity; the waterproof layer absorbs deformation stress caused by temperature differences, preventing the sealing structure from cracking due to thermal expansion and contraction, thus forming a reliable and continuous waterproof barrier. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall sealing structure of this utility model; Figure 2 This is a schematic diagram of the decorative layer of this utility model; Figure 3 This is a cross-sectional schematic diagram of the sealing structure of this utility model; In the diagram: 1. Filling structure; 2. Waterproof layer; 3. Decorative layer; 4. Annular groove; 5. Annular flange. Detailed Implementation

[0011] 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 protection scope of the present utility model.

[0012] Please see Figure 1-3 In this embodiment of the utility model, a hole sealing structure includes a filling structure 1 and an annular groove 4 formed on one end face of the filling structure 1. The outer peripheral surface of the filling structure 1 and the end face away from the annular groove 4 are provided with a waterproof layer 2, and the outer peripheral surface of the waterproof layer 2 is provided with a decorative layer 3.

[0013] Specifically, the sealing structure has a high degree of standardization and is suitable for various external wall penetration holes with diameters of 20-60mm. The outer diameter of the sealing structure is 1-2mm smaller than the diameter of the hole to be sealed, facilitating smooth insertion and installation. This range covers most through-wall tie rods or scaffold wall ties left after removal. The annular groove 4 on the end face of the filling structure 1 is used to solidify together with the surrounding materials after sealing, forming a "clamp" structure, thereby enhancing the overall anchoring performance, making the sealing structure more difficult to pull out, and further improving the sealing reliability. In this embodiment, taking the sealing of a Φ20mm tie bolt hole as an example, the filling structure 1 is prefabricated into a Φ16×40mm cylinder with a compressive strength of 25. MPa; Waterproof layer 2 is made of butyl rubber sheet, which is laminated to the outer periphery and end face of filling structure 1 by hot pressing process, with a thickness of 1mm; and polymer modified cement mortar is sprayed on the outer periphery of waterproof layer 2, and after curing, a decorative layer 3 with a thickness of about 2mm and a rough surface is formed; The overall outer diameter of the prefabricated sealing structure is Φ19mm. During construction, the Φ20mm hole is first cleaned, and then the above-mentioned prefabricated sealing structure is pushed into the hole until the end face of the decorative layer 3 is flush with the surface of the exterior wall; then, quick-drying polyurethane sealant is injected into the annular gap between the sealing structure and the hole wall; after the sealant has cured for 24 hours, the exterior wall elastic coating is applied to complete the integrated treatment of sealing and decoration.

[0014] Please see Figure 1 In one embodiment, preferably, the filling structure 1 is a micro-expansion cement-based block used to compensate for shrinkage. It contains polypropylene anti-crack fibers and is cylindrical in shape to undertake the task of compacting and initially sealing the sealing structure. The polypropylene anti-crack fibers are 6-12 mm long and have a dosage of 0.9-1.2 kg / m³.

[0015] Please see Figure 1 In one embodiment, preferably, the waterproof layer 2 is an annular structure, arranged circumferentially along the filling structure 1. The annular structure is made of self-adhesive polymer waterproof sheet or water-swellable rubber, and the thickness of the annular structure is 1-3mm, which is used to block the water vapor penetration path and adapt to temperature difference deformation.

[0016] Please see Figure 3 In one embodiment, preferably, the decorative layer 3 is a prefabricated cap, which is arranged around the waterproof layer 2. The prefabricated cap is made of modified cement mortar, and the end face of the prefabricated cap is provided with an annular flange 5, which is used to limit and ensure that the outer surface is flush with the wall after installation, so as to bond well with the exterior wall finish layer and prevent cracking and falling off.

[0017] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0018] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A hole-sealing structure, characterized in that, It includes a filling structure and an annular groove formed on one end face of the filling structure. The outer peripheral surface of the filling structure and the end face away from the annular groove are provided with a waterproof layer. The outer peripheral surface of the waterproof layer is provided with a decorative layer.

2. The hole-sealing structure according to claim 1, characterized in that, The filling structure is a micro-expansion cement-based block, which is internally mixed with polypropylene crack-resistant fibers, and the filling structure is cylindrical in shape.

3. The hole-sealing structure according to claim 1, characterized in that, The waterproof layer has a ring structure and is arranged circumferentially along the filling structure. The ring structure is made of self-adhesive polymer waterproof sheet or water-swellable rubber.

4. The hole-sealing structure according to claim 1, characterized in that, The decorative layer is a prefabricated cap, which is set along the circumference of the waterproof layer. The prefabricated cap is made of modified cement mortar.

5. The hole-sealing structure according to claim 4, characterized in that, The end face of the prefabricated plug is provided with an annular flange.

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