Waterproof device for rear-mounted through-wall pipeline of basement outer wall

By using a combination of through-wall pipe transition joints, flanges, and expansion sealing strips in the back-mounted through-wall pipes on the basement exterior wall, the problem of inadequate sealing between the sleeve and the structure was solved, achieving rapid and safe construction and efficient waterproofing.

CN223511664UActive Publication Date: 2025-11-04CHINA CONSTR EIGHT ENG DIV CORP LTD
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Patent Information

Application Number
CN202423272487.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-11-04
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

In existing technologies, the gap between the sleeve and the structure of the back-mounted through-wall pipe in the basement exterior wall cannot be sealed, resulting in frequent leakage, complicated construction procedures, long construction period, and difficulty in guaranteeing quality.

Method used

It adopts a combination structure of through-wall pipe transition joint, flange, foaming agent and expansion sealing strip, and achieves fast and reliable waterproofing effect through threaded connection and sealing effect of expansion sealing strip.

Benefits of technology

It improved construction efficiency, shortened the construction period, ensured waterproofing effect, reduced safety hazards and environmental pollution, and improved construction quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223511664U_ABST
    Figure CN223511664U_ABST
Patent Text Reader

Abstract

The utility model relates to a waterproof device, and belongs to the technical field of pipeline equipment, in particular to a waterproof device for a rear-mounted through-wall pipeline of a basement outer wall, which comprises a through-wall pipe conversion joint, base plates are sleeved on the upper side and the lower side of the through-wall pipe conversion joint, and ring wings are fixedly mounted on the other side of the upper side and the lower side of the through-wall pipe conversion joint. Threads are arranged on the upper surface and the lower surface of the through-wall pipe conversion joint, and flange plates are connected to the threads in a threaded mode. The sealing structure achieves the effects of improving the sealing performance and shortening the construction period, and solves the problems that a gap between an existing sleeve and a structure cannot be tightly plugged, water leakage occurs frequently at the joint of the sleeve and the structure in the later period, plugging is not easy, the number of construction procedures is large, grouting between the sleeve and the structure is affected by a narrow construction face, construction is difficult, and construction cost is low. The construction quality is difficult to guarantee, and the construction period is long.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline equipment technology, and in particular to a waterproof device for a back-mounted through-wall pipe in a basement exterior wall. Background Technology

[0002] The technology of installing pipes through the basement exterior wall is a method of installing pipes on the exterior wall of the basement. It is usually used in the water and electricity installation projects of buildings. The background of this technology is mainly to solve the problems of leakage and cracking that may occur when installing pipes on the exterior wall of the basement.

[0003] A search revealed Chinese patent CN221991140U, which discloses a post-installed sleeve structure for basement exterior walls. The structure includes an opening at the basement exterior wall location, through which a sleeve is inserted. The diameter of the sleeve is smaller than the opening but larger than the through-wall pipe. The space between the sleeve and the inner wall of the opening is filled with asphalt-impregnated hemp fibers and a filler, with the filler located outside the asphalt-impregnated hemp fibers. An enlarged hole is provided on one side of the opening, and the end of the enlarged hole is sealed with a plug. The advantages of this invention are: it effectively waterproofs through-wall sleeves in basement exterior wall composite walls (such as continuous underground walls and inner lining walls) when post-installation is not pre-embedded, and the double composite waterproofing effect through internal and external treatment is excellent; the structure is simple and reasonable, easy to construct, and suitable for widespread application.

[0004] Based on the above search results combined with existing technologies;

[0005] The aforementioned patent involves installing pipes inside a sleeve. The gap between the sleeve and the structure cannot be sealed tightly, leading to frequent leaks at the connection between the sleeve and the structure, which are difficult to seal. The construction process is complex, and the grouting between the sleeve and the structure is affected by the narrow construction surface, making construction difficult, the construction quality difficult to guarantee, and the construction period long. Therefore, it has certain limitations. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model proposes a waterproofing device for a rear-mounted through-wall pipe in the exterior wall of a basement. This device enhances sealing performance, reduces the likelihood of leakage, shortens the construction period, and increases construction speed.

[0007] The technical solution to achieve the purpose of this utility model is as follows: a waterproof device for a rear-mounted through-wall pipe in the exterior wall of a basement, including a through-wall pipe conversion joint, a pad is provided on the upper and lower sides of the through-wall pipe conversion joint, and a ring wing is fixedly installed on the upper and lower sides of the through-wall pipe conversion joint, and threads are provided on the upper and lower surfaces of the through-wall pipe conversion joint, and a flange is threaded onto the threads.

[0008] Preferably, the flange is disposed on one side of the gasket, and the flange has multiple reserved threaded holes. A screw is threaded into the reserved threaded holes, and an adjusting nut is threaded onto one end of the screw.

[0009] Preferably, foaming agent is fixedly installed on both the upper and lower sides of the through-wall pipe transition section, and an expansion sealing strip is provided between the foaming agent and the ring wing.

[0010] Compared with existing technologies, the significant advantages of this invention are:

[0011] Firstly, this utility model and device are simple to process, can be processed on-site using locally sourced materials, avoids wet operations of concrete (grouting material), saves materials, and is low-carbon and environmentally friendly. During construction, welding can be avoided, reducing the occurrence of safety hazards. Furthermore, it is less affected by the external environment and will not generate pollution or construction waste during construction. It is a safe, reliable device with significant environmental benefits.

[0012] Secondly, this utility model is simple to construct, with a straightforward process, enabling rapid construction, high efficiency, and a short construction cycle. Furthermore, the built-in steel bar sleeve pulley determines the position of the inserted bars during construction, ensuring high efficiency and accuracy. In addition, this device can guarantee the verticality of the reserved inserted bars, ensuring the quality of the construction.

[0013] This invention solves the problems of existing methods that fail to seal the gap between the sleeve and the structure, leading to frequent leaks at the connection between the sleeve and the structure, difficulty in sealing the leaks, numerous construction steps, and difficulties in grouting the gap between the sleeve and the structure due to the limited construction area, resulting in poor construction quality and a long construction period. Attached Figure Description

[0014] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a cross-sectional structural schematic diagram provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the flange structure provided by this utility model;

[0017] Figure 3 This is a schematic diagram of the adjusting nut and screw structure provided by this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Through-wall pipe transition joint; 2. Foaming agent; 3. Gasket; 4. Flange; 5. Expansion seal strip; 6. Ring wing; 7. Thread; 8. Adjusting nut; 9. Reserved threaded hole; 10. Screw. Detailed Implementation

[0020] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0021] This utility model provides an improved waterproofing device for a rear-mounted through-wall pipe in a basement exterior wall. The technical solution of this utility model is as follows:

[0022] like Figures 1-3 As shown, a waterproof device for a rear-mounted through-wall pipe in a basement exterior wall includes a through-wall pipe adapter 1. A pad 3 is fitted on both the upper and lower sides of the through-wall pipe adapter 1, and ring wings 6 are fixedly installed on the other upper and lower sides of the through-wall pipe adapter 1. Threads 7 are formed on both the upper and lower surfaces of the through-wall pipe adapter 1, and flanges 4 are threaded onto the threads 7. Except for pipes bearing dynamic loads, there is no need to use a sleeve, making construction simple, the process convenient, and enabling rapid construction with high efficiency and a short construction period.

[0023] Furthermore, the flange 4 is disposed on one side of the gasket 3, and the flange 4 has a plurality of reserved threaded holes 9. A screw 10 is threadedly connected inside the reserved threaded holes 9, and an adjusting nut 8 is threadedly installed at one end of the screw 10. By cooperating with the adjusting nut 8 and the screw 10, welding is avoided and the occurrence of safety hazards is reduced.

[0024] Furthermore, foaming agent 2 is fixedly installed on both the upper and lower sides of the through-wall pipe conversion section 1, and an expansion water-stop strip 5 is provided between the foaming agent 2 and the ring wing 6. The water-stop strip expands when it comes into contact with water to achieve a sealing effect.

[0025] The specific working method is as follows: First, according to the location and size of the through-wall pipe, a hole is drilled in the exterior wall of the structure using a water drill. The size of the hole should be 50mm larger than the outer diameter of the through-wall pipe. (Before drilling the hole, ensure that the excavation of the soil outside the exterior wall has been completed, providing a working surface for the installation of outdoor pipelines.) Then, insert the through-wall pipe transition section 1 from the water-facing side (outside the exterior wall), and initially fix its position through the upper ring wing 6. Install foaming agent 2 on both sides of the through-wall pipe transition section 1, and install an expansion sealing strip 5 between the foaming agent 2 and the ring wing 6. Next, insert the pad 3 into the through-wall pipe transition section 1 and place it on the exterior wall of the structure. The wall is tightly fitted (insulation material is used to seal the gap between the pipe wall and the structure before the installation of the gasket 3); the flange 4 is inserted into the through-wall pipe transition section 1, fixed by the thread 7 and its position is adjusted so that it is basically tightly fitted with the gasket 3; then the adjusting nut 8 is inserted into the reserved threaded hole 9 of the flange 4, and the adjusting nut 8 is rotated in the opposite direction so that the flange 4 gradually moves away from the gasket 3. Under pressure, the ring wing 6 presses the expansion waterstop strip 5 to achieve a sealing effect; finally, the through-wall pipe is connected to the through-wall pipe transition section 1, and the soil on the water-facing side is backfilled. Later, the waterstop strip expands when it comes into contact with water to further achieve a sealing effect and ensure no leakage.

[0026] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A waterproof device for a post-installed through-wall pipe in a basement exterior wall, comprising a through-wall pipe adapter (1), characterized in that: The wall-penetrating pipe transition section (1) is fitted with a pad (3) on both the upper and lower sides, and a ring wing (6) is fixedly installed on the other upper and lower sides. The upper and lower surfaces of the wall-penetrating pipe transition section (1) are threaded (7), and a flange (4) is threaded onto the thread (7).

2. A waterproofing device for a rear-mounted through-wall pipe in a basement exterior wall according to claim 1, characterized in that: The flange (4) is located on one side of the pad (3). The flange (4) has multiple reserved threaded holes (9). The reserved threaded holes (9) are threaded with screws (10). One end of the screws (10) is threaded with an adjusting nut (8).

3. A waterproofing device for a rear-mounted through-wall pipe in a basement exterior wall according to claim 1, characterized in that: Foaming agent (2) is fixedly installed on both the upper and lower sides of the through-wall pipe conversion section (1), and an expansion sealing strip (5) is provided between the foaming agent (2) and the ring wing (6).

Citation Information

Patent Citations

  • Basement exterior wall rear-mounted sleeve structure

    CN221991140U