A wall-penetrating pipe leak prevention device for building structures

The sealing device, composed of an airbag and a cover, solves the problem of inconvenient sealing after pipes pass through walls, achieving a fast, effective, and long-life sealing solution.

CN224283750UActive Publication Date: 2026-05-26曹岩岩
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
曹岩岩
Filing Date
2025-06-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, sealing pipes by filling them with concrete after they pass through walls is inconvenient and prone to unevenness, resulting in poor sealing performance.

Method used

The sealing device consists of an airbag and a cover. The airbag expands to fill the gap between the pipe and the wall, and works with the cover to achieve a double seal, reducing the need for concrete filling. It is fixed with threaded connections.

Benefits of technology

It achieves rapid and effective sealing, adapts to irregular gaps, reduces operational complexity and subsequent disassembly difficulty, and improves sealing performance and service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224283750U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of building pipeline technology, specifically a wall-penetrating device for leak-proof pipes in building structures. It includes a wall and a pipe. The surface of the wall has a perforation for the pipe to pass through. The surface of the pipe is equipped with a sealing device, which includes an air bladder and a cover. The air bladder is sleeved and connected to the pipe. There are two covers, each sleeved and connected to the pipe. The inner wall of the air bladder has a cavity. An inlet valve and an outlet valve are fixedly connected to the surface of the air bladder. A threaded sleeve is fixedly connected to the surface of the cover. This utility model, by setting up a sealing device, inflates the air bladder through the inlet valve, using its expansion to fill the gap between the pipe and the wall perforation. This sealing method can adapt to various irregular gap shapes and, together with the cover, provides protection. It reduces the need for concrete filling for leak prevention, which leads to inconvenient operation and subsequent disassembly, thus improving overall practicality.
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Description

Technical Field

[0001] This utility model relates to the field of building pipeline technology, and in particular to a wall-penetrating device for preventing leaks in building structures. Background Technology

[0002] Pipes are often used in building construction, and some pipes need to pass through walls during installation. During construction, walls are first built or interlayer slabs are poured to leave holes for pipe installation, so that pipes can be installed later in the building construction process.

[0003] In our daily work, we have found that most existing pipes are sealed by filling them with concrete after passing through walls. This method is quite troublesome, and it is difficult to disassemble them for subsequent maintenance. Furthermore, uneven filling can easily occur, resulting in gaps between the pipes and the walls, which cannot form an effective seal and thus leads to poor leak prevention. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of inconvenient operation of filling concrete for leak prevention and sealing, and the easy occurrence of uneven filling that affects the sealing effect in the existing technology, and to propose a wall-penetrating device for leak prevention of building structures.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a wall-penetrating device for leak-proof pipes in building structures, comprising a wall and a pipe. The surface of the wall has a perforation for the pipe to pass through. The surface of the pipe is provided with a sealing device, which includes an airbag and a cover. The airbag is sleeved and connected to the pipe. There are two covers, each sleeved and connected to the pipe. The inner wall of the airbag has a cavity. An inlet valve and an outlet valve are fixedly connected to the surface of the airbag. A threaded sleeve is fixedly connected to the surface of the cover. A threaded groove is formed on the surface of the pipe. The threaded sleeve and the threaded groove are threadedly connected. Using these components, the airbag is first inserted into the perforation on the wall surface, and then the pipe passes through the airbag. Air is then supplied to the inlet valve via an air supply device. After the gas enters the cavity, the airbag expands, quickly filling the gap between the pipe and the wall perforation. Finally, the cover is installed using the threaded sleeve and the threaded groove, protecting the airbag.

[0006] Preferably, the longitudinal section of the airbag is I-shaped.

[0007] Preferably, a compression pad is fixedly connected to the outer surface of the airbag body. The compression pad is made of fluororubber material. Through the above-mentioned components, when the airbag body is deformed and filled, the compression pad can be deformed, thereby achieving better filling and sealing. At the same time, it can protect the surface of the airbag body. The fluororubber material is a fire-retardant material.

[0008] Preferably, a gasket is fixedly connected to one side surface of the cover. The gasket is O-shaped. With the above-mentioned components, when the cover blocks the airbag, the cover can fit against the wall with the gasket, thereby achieving a double sealing treatment with the airbag.

[0009] Preferably, the surface of the cover is provided with an auxiliary component, which includes a baffle located above the cover. An auxiliary rod is fixedly connected to the surface of the baffle, and a concave iron seat is fixedly connected to the surface of the cover. A pin is inserted into the inner wall of the concave iron seat, and the pin is inserted into the inner wall of the auxiliary rod. Through the above components, the auxiliary rod can be inserted into the concave iron seat on the surface of the outer cover, and then the pin is inserted into the inner wall of the concave iron seat and the auxiliary rod, so that the baffle can play the role of blocking rainwater.

[0010] Preferably, the longitudinal section of the pin is arranged in a regular hexagon.

[0011] Preferably, one end of the pin is fixedly connected to a magnetic ring, which is magnetically connected to the concave iron base. Through the above-mentioned components, after the pin is inserted into the concave iron base, the magnetic ring can attract the concave iron base to achieve positioning.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a sealing device, the airbag is inflated through the air inlet valve, and its expansion is used to fill the gap between the tube and the wall perforation. This sealing method can adapt to various irregular gap shapes and, together with the cover, achieve protection, reducing the need for concrete filling to prevent leakage, which leads to inconvenient operation and subsequent disassembly, thus improving the overall practicality.

[0014] 2. In this utility model, by setting auxiliary components, rainwater can be effectively blocked, reducing the direct scouring of the pipe sealing connection by rainwater, reducing the erosion and damage of rainwater, and extending the overall service life. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a wall-penetrating device for preventing leaks in building structures;

[0016] Figure 2 This utility model provides a structural schematic diagram from another perspective of a wall-penetrating device for preventing leaks in building structures.

[0017] Figure 3 This utility model proposes a wall-penetrating device for preventing leaks in building structures. Figure 2 Schematic diagram of the structure at point A in the middle;

[0018] Figure 4This utility model provides an exploded structural diagram of the sealing device portion of a wall-penetrating pipe leak-proof device for building structures.

[0019] Figure 5 This utility model provides a cross-sectional structural diagram of the sealing device of a wall-penetrating pipe anti-leakage device for building structures;

[0020] Figure 6 This utility model provides a cross-sectional view of another part of the sealing device of a wall-penetrating pipe anti-leakage device for building structures.

[0021] Legend:

[0022] 1. Wall; 2. Pipe; 3. Sealing device; 31. Airbag body; 32. Cavity; 33. Compression pad; 34. Inlet valve; 35. Exhaust valve; 36. Cover; 37. Gasket; 38. Threaded sleeve; 39. Auxiliary component; 391. Concave iron seat; 392. Auxiliary rod; 393. Pin; 394. Magnetic ring; 395. Baffle; 310. Threaded groove. Detailed Implementation

[0023] Please see Figures 1-6 This utility model provides a technical solution: a wall-penetrating device for preventing leakage of pipes in building structures, including a wall 1 and a pipe 2. The surface of the wall 1 is provided with a perforation for the pipe 2 to pass through, and the surface of the pipe 2 is provided with a sealing device 3.

[0024] Specifically, the sealing device 3 includes an airbag body 31 and a cover body 36. The airbag body 31 is sleeved and connected to the tube body 2. There are two covers body 36, and both covers body 36 are sleeved and connected to the tube body 2. The inner wall of the airbag body 31 has a cavity 32. An air inlet valve 34 and an air outlet valve 35 are fixedly connected to the surface of the airbag body 31. A threaded sleeve 38 is fixedly connected to the surface of the cover body 36. A threaded groove 310 is opened on the surface of the tube body 2. The threaded sleeve 38 is threadedly connected to the threaded groove 310.

[0025] In this embodiment: First, the airbag body 31 is inserted into the perforation on the surface of the wall 1. Then, the pipe body 2 is passed through the airbag body 31. Subsequently, air is supplied to the air inlet valve 34 through the air supply device. After the gas enters the cavity 32, the airbag body 31 expands, thereby quickly filling the gap between the pipe and the perforation in the wall 1. Then, the cover body 36 is installed by using the threaded sleeve 38 in conjunction with the threaded groove 310. The cover body 36 can protect the airbag body 31.

[0026] Specifically, the longitudinal section of the airbag body 31 is I-shaped.

[0027] Specifically, an extrusion pad 33 is fixedly connected to the outer surface of the airbag body 31, and the extrusion pad 33 is made of fluororubber material.

[0028] In this embodiment: when the airbag body 31 is deformed and filled, it can drive the compression pad 33 to deform, thereby better filling and sealing, and at the same time protecting the surface of the airbag body 31. The fluororubber material is a fire-retardant material.

[0029] Specifically, a gasket 37 is fixedly connected to one side surface of the cover 36. The gasket 37 is O-shaped. When the cover 36 blocks the airbag 31, the cover 36 can fit with the gasket 37 to fit against the wall 1, thereby achieving a double sealing treatment with the airbag 31.

[0030] Specifically, the surface of the cover 36 is provided with an auxiliary component 39. The auxiliary component 39 includes a baffle 395 located above the cover 36. An auxiliary rod 392 is fixedly connected to the surface of the baffle 395. A concave iron seat 391 is fixedly connected to the surface of the cover 36. A pin 393 is inserted into the inner wall of the concave iron seat 391. The pin 393 is inserted into the inner wall of the auxiliary rod 392.

[0031] In this embodiment, the auxiliary rod 392 can be inserted into the concave iron seat 391 on the surface of the outer cover 36, and then the pin 393 can be inserted into the inner wall of the concave iron seat 391 and the auxiliary rod 392, so that the shield 395 can block rainwater.

[0032] Specifically, the longitudinal section of pin 393 is set in a regular hexagon.

[0033] Specifically, a magnetic ring 394 is fixedly connected to one end of the pin 393, and the magnetic ring 394 is magnetically connected to the concave iron base 391.

[0034] In this embodiment: after the pin 393 is inserted into the concave iron base 391, the magnetic ring 394 can be attracted to the concave iron base 391 to achieve positioning.

[0035] Working principle: In use, firstly, the uninflated airbag 31 is inserted into the perforation on the surface of the wall 1. Then, the tube 2 is passed through the airbag 31. Subsequently, air is supplied through the air inlet valve 34 via the air supply device. After the gas enters the cavity 32, the airbag 31 inflates. Simultaneously, the expansion causes the compression pad 33, made of fluororubber material, to deform, thereby quickly filling the gap between the pipe and the perforation in the wall 1. Finally, the threaded sleeve 38 is threaded into the threaded groove 310 on the surface of the tube 2. The sleeve 38 moves the cover 36 and the gasket 37. The cover 36 can protect the airbag 31. At the same time, the airbag 31, together with the gasket 37, is pressed against the wall to achieve a double seal. Meanwhile, the auxiliary rod 392 can be inserted into the concave iron seat 391 on the surface of the outer cover 36. Then, the pin 393 is inserted into the inner wall of the concave iron seat 391 and the auxiliary rod 392. The magnetic ring 394 is attracted to the concave iron seat 391, and the baffle 395 can then block rainwater.

Claims

1. A wall-penetrating device for preventing leaks in building structures, comprising a wall (1) and a pipe (2), characterized in that: The surface of the wall (1) is provided with perforations for the pipe (2) to pass through. The surface of the pipe (2) is provided with a sealing device (3). The sealing device (3) includes an airbag (31) and a cover (36). The airbag (31) is sleeved and connected to the pipe (2). There are two covers (36), and both covers (36) are sleeved and connected to the pipe (2). The inner wall of the airbag (31) is provided with a cavity (32). The surface of the airbag (31) is fixedly connected with an air inlet valve (34) and an air outlet valve (35). The surface of the cover (36) is fixedly connected with a threaded sleeve (38). The surface of the pipe (2) is provided with a threaded groove (310). The threaded sleeve (38) is threadedly connected to the threaded groove (310).

2. The wall-penetrating pipe anti-leakage device for building structures according to claim 1, characterized in that: The longitudinal section of the airbag body (31) is I-shaped.

3. A wall-penetrating pipe anti-leakage device for building structures according to claim 1, characterized in that: An extrusion pad (33) is fixedly connected to the outer surface of the airbag body (31), and the extrusion pad (33) is made of fluororubber material.

4. A wall-penetrating pipe anti-leakage device for building structures according to claim 1, characterized in that: A gasket (37) is fixedly connected to one side surface of the cover (36), and the gasket (37) is O-shaped.

5. A wall-penetrating pipe anti-leakage device for building structures according to claim 1, characterized in that: The surface of the cover (36) is provided with an auxiliary component (39), the auxiliary component (39) includes a baffle (395) located above the cover (36), an auxiliary rod (392) is fixedly connected to the surface of the baffle (395), a concave iron seat (391) is fixedly connected to the surface of the cover (36), a pin (393) is inserted into the inner wall of the concave iron seat (391), and the pin (393) is inserted into the inner wall of the auxiliary rod (392).

6. A wall-penetrating pipe anti-leakage device for building structures according to claim 5, characterized in that: The longitudinal section of the pin (393) is set in a regular hexagon.

7. A wall-penetrating device for preventing leaks in building structures according to claim 5, characterized in that: One end of the pin (393) is fixedly connected to a magnetic ring (394), and the magnetic ring (394) is magnetically connected to the concave iron base (391).