CN111945904A - Temporary plugging device for side wall embedded pipe - Google Patents

Abstract

The invention relates to the field of construction, and discloses a temporary plugging device for pre-embedded pipes in side walls, comprising a plugging plate, a circle of water-swellable water-stop strips are arranged on the inner side of the plug-in plate, and the outer wall of the water-swellable water-stop strip is affixed Close to the inner wall of the embedded pipe, the inner side of the plugging plate is provided with a plurality of steel bars, the steel bars include a straight part and a bent part, the straight part of the steel bar is connected to the inner side of the plugging plate, one end of the bent part is connected to the straight part, and the bent part The other end abuts on the inner wall of the embedded pipe. When it is necessary to temporarily block the embedded pipe, a plurality of steel bars are inserted into the embedded pipe, and the bent part of the steel bar is in contact with the inner wall of the embedded pipe, so that the blocking plate can be fixed on the side wall; When exposed to water, the water-swelling water-stop strip expands and fills the gap between the blocking plate and the side wall, so that the embedded pipe can be tightly sealed to prevent leakage; when it is not necessary to plug the embedded pipe , only need to pull out the blocking plate, the operation is fast and quick, and the structure of the side wall will not be damaged.

Description

Temporary plugging device for side wall embedded pipe

technical field

The invention relates to the field of construction, in particular to a temporary plugging device for side wall pre-embedded pipes.

Background technique

Pre-buried pipes are pipes that are pre-buried in construction projects for the convenience of subsequent construction, so as to facilitate the installation of ventilation pipes, air-conditioning pipes, and drainage of water and sewage in the underground building structure. When constructing an underground building structure, it is necessary to set a reserved hole on the side wall to facilitate the burial of the embedded pipe, and the embedded pipe is often not used in a short period of time, so it is necessary to temporarily block the embedded pipe. In the prior art, when the pre-buried pipe is temporarily blocked, the plugging is not tight, which often causes leakage of the underground building structure, and in severe cases, the normal use of the underground building structure is affected. If the embedded pipe is blocked with solid materials such as concrete , it will increase the difficulty of re-opening in the later stage, and will damage the structure of the side wall.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a temporary plugging device for side wall pre-embedded pipes, which can strictly seal the pre-embedded pipes without damaging the structure of the side walls.

According to an embodiment of the present invention, a temporary plugging device for a side wall pre-embedded pipe includes: a plugging plate, a circle of water-swellable water-stop strips are arranged on the inner side of the plugging plate, and the water-swellable water-stop strip is The outer wall fits the inner wall of the pre-embedded pipe; a plurality of reinforcing bars are arranged on the inner side of the blocking plate, the reinforcing bars include a straight part and a bent part, the straight part is connected to the inner side of the blocking plate, and the bent part is One end of the portion is connected to the straight portion, and the other end of the bent portion is abutted against the inner wall of the embedded pipe.

According to an embodiment of the present invention, a device for temporarily plugging a pre-embedded pipe in a side wall has at least the following beneficial effects: when the pre-embedded pipe needs to be temporarily blocked, a plurality of steel bars are extended into the embedded pipe, and the bent portion of the steel bar is along the The inner wall of the embedded pipe slides, and when the blocking plate contacts the side wall, the bending part of the steel bar abuts the inner wall of the embedded pipe, and the blocking plate can be fixed on the side wall by virtue of the tension of multiple steel bars; After the sealing plate contacts the side wall, the outer wall of the water-swellable water stop strip on the inner side of the sealing plate is attached to the inner wall of the embedded pipe. When there is water in the embedded pipe, the water-swellable water stop strip expands and can be filled. Fill the gap between the water-swelling water stop strip and the inner wall of the reserved hole, so that the embedded pipe can be tightly sealed to prevent leakage; when it is not necessary to block the embedded pipe, the plugging plate only needs to be pulled out. The operation is quick and quick, and the structure of the side wall will not be damaged.

According to some embodiments of the present invention, polyurethane sealant is filled between the blocking plate and the side wall. Polyurethane sealant has good elasticity and bonding performance, can fill the gap between the blocking board and the side wall, and can further increase the blocking effect on the embedded pipe.

According to some embodiments of the present invention, the outer side of the blocking plate is provided with a waterproof membrane. The waterproof membrane has good water resistance, which can further prevent the leakage of underground building structures.

According to some embodiments of the present invention, the blocking plate is a circular steel plate, and the outer diameter of the blocking plate is larger than the inner diameter of the reserved hole. The round steel plate-shaped plugging plate can block the embedded pipe more effectively, and when plugging the embedded pipe, the plugging plate will not fall into the embedded pipe, and the installation and disassembly are very convenient.

According to some embodiments of the present invention, three reinforcing bars are provided, and the three reinforcing bars are distributed along the circumferential direction of the blocking plate. On the one hand, there are three steel bars, which can generate tension on the embedded pipe from three directions, and effectively fix the blocking plate on the side wall. How much force is required to press the steel bar into the embedded pipe.

Description of drawings

Fig. 1 is a partial structural schematic diagram of a sidewall pre-embedded pipe temporary blocking device according to an embodiment of the present invention;

FIG. 2 is a diagram showing the cooperation relationship between the temporary plugging device of the side wall pre-embedded pipe and the pre-embedded pipe in the embodiment of the present invention.

In the drawings: 100 pre-embedded pipes, 200 plugging plates, 210 water-swellable water stop strips, 220 steel bars, 221 straight parts, 222 bent parts.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the orientations related to the description, such as up, down, front, rear, left, right, etc., are based on the orientation or positional relationship shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number . If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

1 and 2, an embodiment of the present invention provides a temporary plugging device for sidewall embedded pipes, including a plugging plate 200, and a ring of water-swellable water-stop strips 210 is arranged on the inner side of the plugging plate 200, The outer wall of the water-expandable water stop strip 210 is in contact with the inner wall of the pre-embedded pipe 100. The inner side of the blocking plate 200 is provided with a plurality of steel bars 220. The steel bars 220 include a straight portion 221 and a bent portion 222. On the inner side of the blocking plate 200 , one end of the bent portion 222 is connected to the straight portion 221 , and the other end of the bent portion 222 abuts on the inner wall of the embedded pipe 100 . When it is necessary to temporarily block the embedded pipe 100, a plurality of steel bars 220 are inserted into the embedded pipe 100, and the bent portion 222 of the steel bars 220 slides along the inner wall of the embedded pipe 100. After the blocking plate 200 contacts the side wall, The bent portion 222 of the steel bar 220 is in contact with the inner wall of the embedded pipe 100, and the blocking plate 200 can be fixed on the side wall by virtue of the tension of the plurality of steel bars 220; The outer wall of the water-swellable water-stop strip 210 on the inner side of the plate 200 is attached to the inner wall of the embedded pipe 100. When there is water in the embedded pipe 100, the water-swellable water-stop strip 210 expands and can be filled with water-swellable water-stop strips 210. There is a gap between the water stop strip 210 and the inner wall of the reserved hole, so that the embedded pipe 100 can be tightly sealed to prevent leakage; when it is not necessary to block the embedded pipe 100, the plugging plate 200 only needs to be pulled out. The operation is quick and quick, and the structure of the side wall will not be damaged.

In some embodiments, polyurethane sealant is filled between the blocking plate 200 and the sidewall. Polyurethane sealant has good elasticity and bonding performance, and can fill the gap between the blocking plate 200 and the side wall, and can further increase the blocking effect on the embedded pipe 100 . Further, in some embodiments, the outer side of the blocking plate 200 is provided with a waterproof membrane. The waterproof membrane has good water resistance, which can further prevent the leakage of underground building structures.

1 and 2 , in some embodiments, the blocking plate 200 is a circular steel plate, and the outer diameter of the blocking plate 200 is larger than the inner diameter of the reserved hole. The round steel plate-shaped blocking plate 200 can more effectively block the embedded pipe 100, and when the embedded pipe 100 is blocked, the blocking plate 200 will not fall into the embedded pipe 100, and the installation and disassembly are very convenient . In some embodiments, three reinforcing bars 220 are provided, and the three reinforcing bars 220 are distributed along the circumferential direction of the blocking plate 200 . On the one hand, there are three steel bars 220, which can generate tension on the embedded pipe 100 from three directions, and effectively fix the blocking plate 200 on the side wall. The steel bar 220 can be pressed into the embedded pipe 100 without using much force. Specifically, the three reinforcing bars 220 are evenly distributed along the circumferential direction of the blocking plate 200, and the bending portion 222 of each reinforcing bar 220 is bent toward the outside of the blocking plate 200. After the blocking device is installed, each The bent portions 222 of the reinforcing bars 220 all abut against the inner wall of the embedded pipe 100 .

When the embedded pipe 100 needs to be used later, the blocking plate 200 is pulled out, the wall-penetrating pipe is inserted into the reserved hole, and the wall-penetrating pipe is connected to the embedded pipe 100. Apply polyurethane sealant between the inner walls of the reserved holes, so that the polyurethane sealant fills the gap between the outer wall of the through-wall pipe and the inner wall of the reserved hole; then apply cement-based waterproof material on the side wall and the through-wall pipe, and Covering the through-wall pipe with a waterproofing membrane, and then using a metal ferrule to fasten the waterproofing membrane on the through-wall pipe, can ensure the tightness of the through-wall pipe and the embedded pipe 100 and prevent leakage.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the art, various Variety.

Claims (5)

1. a side wall pre-embedded pipe temporary blocking device, is characterized in that, comprises: A plugging plate (200), wherein a circle of water-swellable water-stop strips (210) are arranged on the inner side of the plug-in plate (200), and the outer wall of the water-swellable water-stop strip (210) is fitted with the pre-embedded pipe (100). ) of the inner wall; A plurality of reinforcing bars (220) arranged on the inner side of the sealing plate (200), the reinforcing bars (220) include a straight portion (221) and a bent portion (222), and the straight portion (221) is connected to the sealing On the inner side of the blocking plate (200), one end of the bent portion (222) is connected to the straight portion (221), and the other end of the bent portion (222) abuts against the inner wall of the embedded pipe (100) . 2 . The temporary plugging device for sidewall pre-embedded pipes according to claim 1 , wherein a polyurethane sealant is filled between the blocking plate ( 200 ) and the sidewall. 3 . 3 . The temporary blocking device for embedded pipes in side walls according to claim 1 , wherein a waterproof membrane is provided on the outer side of the blocking plate ( 200 ). 4 . 4. The temporary plugging device for sidewall embedded pipes according to any one of claims 1 to 3, wherein the plugging plate (200) is a circular steel plate, and the plugging plate (200) is a circular steel plate. ) is larger than the inner diameter of the reserved hole. 5. The temporary plugging device for sidewall embedded pipes according to claim 4, characterized in that, three reinforcing bars (220) are provided, and the three reinforcing bars (220) are provided along the blocking plate (200). ) circumferential distribution.

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