Reserved hole plugging structure with anti-seepage function

Abstract

The utility model discloses a reserved hole plugging structure with an anti-seepage function, the upper part of a reserved hole is provided with a horn mouth with a wide upper part and a narrow lower part, a gridding cloth-based adhesive tape is adhered below the reserved hole, the bottom of the horn mouth of the reserved hole is provided with a rubber water stop ring, and the bottom of the rubber water stop ring is provided with a sealing ring. The reserved hole and the horn mouth are filled with micro-expansion grouting materials, and a waterproof coating layer is arranged on the top of the reserved hole. The utility model has the beneficial effects that the use of auxiliary materials such as steel pipes, templates, iron wires and the like is greatly reduced, the cost is saved, the construction is more economical and environment-friendly, the formwork support work amount and the leakage risk at the reserved hole can be reduced, the operation is easier, and the better construction quality can be achieved.

Description

Technical Field

[0001] The utility model relates to a reserved hole blocking structure with an anti-leakage function. Background Art

[0002] my country's construction industry has achieved rapid development. The floor slabs of modern buildings have all adopted cast-in-place slabs or composite slabs. During structural construction, it is usually necessary to reserve holes on the floor slabs or open holes according to needs. These holes need to be sealed before ground decoration construction. According to the information consulted, the existing hole sealing technology usually adopts the method of returning the top of the steel pipe under the plate, or the method of hanging the formwork through the hole with steel wire, and the concrete is directly poured after the formwork is completed. Among the above-mentioned hole sealing methods, the formwork method is relatively complicated. When the number of holes is very large, a large number of auxiliary materials such as steel pipes, formworks, and iron wires will be used, resulting in serious material waste and not economical. In addition, the holes after sealing are prone to water leakage, and the quality risks are very large, especially when sealing holes with a diameter of ≤50mm, the "big materials for small uses" will be more obvious, and the concrete in the small holes cannot be vibrated, and there will also be defects such as loose concrete pouring. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a reserved hole sealing structure with an anti-leakage function, which can not only reduce the workload of formwork and the investment in a large amount of auxiliary materials by providing a new formwork scheme and a variety of water-stopping measures, but also solve the potential leakage problems existing in the rear sealing of the hole, thereby greatly improving the construction quality of the floor hole sealing.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A reserved hole sealing structure with an anti-leakage function, wherein the upper part of the reserved hole is set as a trumpet mouth which is wide at the top and narrow at the bottom, a mesh cloth-based tape is pasted below the reserved hole, a rubber water-stop ring is provided at the bottom of the trumpet mouth of the reserved hole, the reserved hole and the trumpet mouth are both filled with micro-expansion grouting material, and a waterproof coating layer is provided on the top of the reserved hole.

[0006] The height of the bell mouth is one fifth to one third of the height of the reserved hole.

[0007] The beneficial effect of the utility model is that a trumpet mouth is cut on the upper part of the reserved hole, and the new and old concrete can be better bonded by flushing and moistening. The strong mesh cloth-based tape is used at the bottom to replace the original wooden formwork steel plate ash top or iron wire through the hole to hang the formwork, which greatly reduces the use of auxiliary materials such as steel pipes, formworks, and iron wires, saves costs, is more economical and environmentally friendly, and can reduce the amount of formwork engineering and reduce the risk of leakage at the iron wire; and by optimizing the sealing material to a higher strength self-compacting micro-expansion grouting material and a rubber water stop ring, the defects such as the reserved hole being too small to be vibrated and causing the plugging to be not dense are solved; at the same time, a waterproof coating layer is set on the top of the reserved hole to solve the problem of easy leakage at the joint of the new and old concrete, and achieve the purpose of multiple anti-leakage. The sealing structure provided by the utility model has better economy, is easier to operate, and is conducive to achieving better construction quality.

[0008] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments; however, the present invention is not limited to the embodiments as a reserved hole sealing structure with an anti-leakage function. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a cross-sectional schematic diagram of a reserved hole blocking structure of a preferred embodiment of the utility model.

[0010] Figure 2 It is a top view projection diagram of a reserved hole blocking structure of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0011] For example, see Figure 1 and Figure 2 As shown, a reserved hole sealing structure with anti-leakage function of the utility model is applied to the sealing technology of the reserved hole 2 of the floor 1. The upper part of the reserved hole 2 is set as a trumpet mouth 21 which is wide at the top and narrow at the bottom, a mesh cloth-based tape 3 is pasted below the reserved hole 21, a rubber water stop ring 4 is provided at the bottom of the trumpet mouth 21 of the reserved hole 2, the reserved hole 2 and the trumpet mouth 21 are filled with micro-expansion grouting material 5, and a waterproof coating layer 6 is provided on the top of the reserved hole 2.

[0012] The height of the bell mouth 21 is one fifth to one third of the height of the reserved hole 2 .

[0013] The blocking structure of this embodiment, especially when used to block a hole with a diameter of ≤50 mm, adopts the following steps:

[0014] (1) Before plugging the reserved hole 2, the floor slab concrete above the hole is first cut out to form a bell mouth 21, and then rinsed with clean water to achieve the purpose of enhancing the bonding between the new and old concrete;

[0015] (2) A strong mesh cloth-based tape 3 is used at the bottom of the reserved hole 2 of the floor slab to replace the traditional formwork + steel pipe top-up solution, and to replace the wire-through-hole hanging formwork as the bottom formwork. During construction, the strong mesh cloth-based tape 3 is directly pasted on the concrete surface at the bottom of the floor slab 1 as the bottom formwork for the hole with a diameter of ≤50 mm;

[0016] (3) The material for plugging the hole is changed from ordinary concrete to a solution of micro-expansion grouting material 5 + water-expandable rubber water stop ring 4 + micro-expansion grouting material 5 which is one grade higher in strength than the original concrete;

[0017] (4) After the hole is sealed and the grouting material reaches the curing strength, one or more circular layers of waterproof coating 6 are applied to the corresponding positions of the floor slab to eliminate the risk of leakage.

[0018] This utility model patent is used to block holes with a diameter of ≤50mm, and the effect is remarkable: cost saving, simple operation, leakage prevention and good quality.

[0019] The above embodiments are only used to further illustrate a reserved hole plugging structure with anti-leakage function of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. A reserved hole plugging structure with anti-leakage function, characterized in that: The upper part of the reserved hole is set as a trumpet mouth which is wide at the top and narrow at the bottom, a mesh cloth-based tape is pasted at the bottom of the reserved hole, a rubber water-stop ring is provided at the bottom of the trumpet mouth of the reserved hole, the reserved hole and the trumpet mouth are filled with micro-expansion grouting material, and a waterproof coating layer is provided on the top of the reserved hole.

2. A reserved hole plugging structure with anti-leakage function according to claim 1, characterized in that: The height of the bell mouth is one fifth to one third of the height of the reserved hole.

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