Rainproof structure of a through-wall pipe

By employing a combination design of wall, sleeve, sealing connection layer and waterproof cover in the through-wall pipe, the problem of unstable rainwater resistance caused by easy aging of mechanical structure is solved, achieving efficient sealing and stable connection, and improving waterproof effect and structural durability.

CN224497782UActive Publication Date: 2026-07-14HENAN YUEDA CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YUEDA CONSTR ENG CO LTD
Filing Date
2025-09-22
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing rainproof structures for through-wall pipes, the mechanical structure is prone to aging, resulting in unstable rainproof performance. Rainwater can easily seep into the room, affecting interior decoration and building structural safety.

Method used

The design employs a combination of walls, sleeves, pipes, sealing connection layers, and sealing filler layers. It utilizes the sealing properties of sealant and rubber putty, combined with the threaded connection of waterproof cover, sealing ring, and water-blocking ring, to form a fully enclosed waterproof structure, avoiding the use of mechanical structures.

Benefits of technology

It effectively prevents rainwater from seeping in, enhances the stability and sealing performance of the connection between the pipe and the wall, extends the service life, solves the problem of easy aging of mechanical structure, and features easy installation and high stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224497782U_ABST
Patent Text Reader

Abstract

The utility model relates to building pipeline protection technical field, concretely is a kind of rainproof structure of wall-penetrating pipeline, including wall, wall hole is set up on the wall, the inside of wall hole is provided with sleeve pipe, the inside sleeve pipe is provided with pipeline, sealing connecting layer is set between the sleeve pipe and wall hole, sealing filler layer is set between the pipeline and sleeve pipe.This rainproof structure of wall-penetrating pipeline, through the cooperation of wall, wall hole, pipeline, sleeve pipe, sealing connecting layer, sealing filler layer and annular limiting piece, case is sealed sleeve pipe and wall hole inner wall through sealing connecting layer, prevent rainwater from the gap of both sides and seep in;Utilize annular limiting piece to guarantee that pipeline and sleeve pipe are connected stably, while injecting sealing filler layer between both, ensure good sealing performance, effectively prevent rainwater from flowing into indoor along pipeline outer wall, realize efficient rainproof.The whole process does not use mechanical structure, has the advantages of simple installation, high stability.
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Description

Technical Field

[0001] This utility model relates to the field of building pipeline protection technology, specifically a rainproof structure for through-wall pipelines. Background Technology

[0002] In construction projects, various pipes need to pass through the walls of buildings, such as water supply and drainage pipes and ventilation ducts. When these pipes pass through walls, if there is no effective rainproof structure, rainwater can easily seep into the room through the gaps between the pipes and the walls, causing the interior walls to become damp and moldy, damaging the interior decoration, and even affecting the structural safety of the building.

[0003] Chinese Patent No. CN221196401U discloses a rainproof structure for through-wall pipes. It includes a protective mechanism, one end of which is fixedly connected to an anti-seepage mechanism. The protective mechanism includes a first protective plate, one end of which is attached to a second protective plate. Both the first and second protective plates are fixedly connected to a locking block. This invention uses a screw to rotate, causing the sealing block to continuously move along the connecting pipe until it is tightly fitted against the wall, further preventing rainwater from seeping into the room and thus effectively protecting against rainwater infiltration.

[0004] In practical applications, existing rainproof technologies for connecting pipes have significant shortcomings. Currently, rainproofing is achieved through exposed mechanical structures. Specifically, after the connecting pipe passes through the wall, a screw rotates to move a sealing block and fit it against the wall to prevent rainwater seepage. A limiting rod simultaneously limits and fixes the screw's rotation. When the protective plate is in place, a universal joint allows for free-form movement, and bolts and bends secure it. When the protective plate is angled to protect the end of the connecting pipe, insert rods, springs, and locking blocks provide support and prevent tipping. However, over time, these exposed mechanical structures, such as screws, rotation handles, limiting rods, bolts, insert rods, and springs, will age and rust. This not only reduces the performance of the mechanical structure but also affects the stability of the entire rainproof structure, thus weakening its rainproof protection effect on the connecting pipe. Therefore, it is necessary to provide a rainproof structure for through-wall pipes to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a rainproof structure for through-wall pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rainproof structure for through-wall pipes, comprising:

[0008] The wall has a wall hole, a sleeve is installed inside the wall hole, a pipe is installed inside the sleeve, a sealing connection layer is provided between the sleeve and the wall hole, and a sealing filler layer is provided between the pipe and the sleeve.

[0009] Preferably, a water-blocking ring is fixedly installed on the outer surface of the wall outside the wall hole, and the inner diameter of the water-blocking ring is larger than the inner diameter of the wall hole. A waterproof cover is fitted on the outer wall of the pipe. A sealing sleeve is fixedly installed on the inner wall of one end of the waterproof cover, and the sealing sleeve slides in contact with the outer wall of the pipe. The inner wall of the other end of the waterproof cover is threadedly connected to the outer surface of the water-blocking ring. A sealing ring is provided at the other end of the waterproof cover.

[0010] By adopting the above technical solution, the waterproof cover can seal and protect the waterproof structure at the connection between the pipe and the wall, effectively preventing rainwater from splashing onto the connection and reducing the possibility of rainwater seepage.

[0011] Preferably, a plurality of annular limiting elements are provided on the inner surface of the sleeve, and the annular limiting elements are in close contact with the outer wall of the pipe.

[0012] By adopting the above technical solutions, the stability of the connection between the two can be enhanced, the pipe can be prevented from shaking and shifting, the overall structure can be ensured to be stable, and the sealing performance can be improved to prevent rainwater from flowing in.

[0013] Preferably, the sealing connection layer is made of sealant, and the sealing filler layer is made of rubber putty.

[0014] By adopting the above technical solutions, the sealing connection layer uses sealant, which can tightly fill the gap between the sleeve and the wall hole, and seal and waterproof; the sealing filler layer uses rubber putty, which can flexibly fill the annular space between the pipe and the sleeve, ensuring a seal, and both are easy to construct.

[0015] Preferably, a plurality of raised strips are provided on the outer wall of one end of the waterproof cover, and the raised strips and the waterproof cover are integrally formed, and the outer surface of the waterproof cover is coated with a waterproof coating.

[0016] By adopting the above technical solution, the one-piece molded raised strip facilitates the rotation of the waterproof cover for installation; the waterproof coating on the outside can enhance the waterproof performance of the waterproof cover itself and extend its service life.

[0017] Preferably, the waterproof cover is formed in a trumpet shape, and the outer surface of the waterproof cover has a certain tilt angle.

[0018] By adopting the above technical solution, the waterproof cover is funnel-shaped and has an inclined outer surface, which facilitates the flow of rainwater, avoids water accumulation, and enhances the waterproof effect.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model utilizes the combined use of a wall, wall hole, pipe, sleeve, sealing connection layer, sealing filler layer, and annular limiting component. The sealing connection layer seals the inner wall of the sleeve and wall hole, preventing rainwater from seeping in through the gap. The annular limiting component ensures a stable connection between the pipe and sleeve, while the injection of the sealing filler layer between them ensures good sealing performance, effectively preventing rainwater from flowing into the room along the outer wall of the pipe, achieving highly efficient rainproofing. The entire process does not use mechanical structures, offering advantages such as simple installation and high stability.

[0021] 2. This utility model utilizes a combination of a waterproof cover, raised strip, sealing sleeve, sealing ring, and water-blocking ring. The waterproof cover is fitted onto the outer wall of the pipe and threadedly connected to the water-blocking ring pre-fixed to the outside of the wall. One end of the sealing ring presses against the wall, while the other end of the sealing sleeve seals the pipe. After installation, it effectively prevents rainwater splashing and seepage at the connection between the pipe and the wall, solving the problems of easy aging and leakage in existing measures. It has high practicality and promotional value. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0024] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the waterproof cover in this utility model.

[0026] In the diagram: 1. Wall; 2. Wall hole; 3. Pipe; 4. Sleeve; 5. Waterproof cover; 6. Raised strip; 7. Sealing sleeve; 8. Sealing ring; 9. Sealing connection layer; 10. Sealing filler layer; 11. Annular limiting component; 12. Water-blocking ring. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please see Figures 1-4 One embodiment provided by this utility model:

[0030] A rainproof structure for through-wall pipes, comprising:

[0031] The wall 1 has a wall hole 2, a sleeve 4 is installed inside the wall hole 2, a pipe 3 is installed inside the sleeve 4, a sealing connection layer 9 is installed between the sleeve 4 and the wall hole 2, and a sealing filler layer 10 is installed between the pipe 3 and the sleeve 4.

[0032] Specifically, a number of annular limiting elements 11 are provided on the inner surface of the sleeve 4, and the annular limiting elements 11 are in close contact with the outer wall of the pipe 3. The sealing connection layer 9 is made of sealant, and the sealing filler layer 10 is made of rubber putty.

[0033] Furthermore, by installing a sleeve 4 inside the wall hole 2 of wall 1, and then installing a pipe 3 inside the sleeve 4, and simultaneously installing a sealing connection layer 9 between the sleeve 4 and the wall hole 2, and a sealing filler layer 10 between the pipe 3 and the sleeve 4, rainwater is effectively prevented from seeping into the room through the gaps between the sleeve 4 and the wall hole 2, and between the pipe 3 and the sleeve 4, thus improving the overall waterproof performance. Several annular limiting elements 11 installed on the inner surface of the sleeve 4 are in close contact with the outer wall of the pipe 3, ensuring the stability of the pipe 3 installed inside the sleeve 4 and preventing the pipe 3 from shaking and damaging the sealing structure. The sealing connection layer 9 uses sealant, and the sealing filler layer 10 uses rubber putty. Utilizing the good adhesion of the sealant and the waterproof and aging-resistant properties of the rubber putty, the sealing effect and the durability of the structure are further enhanced.

[0034] Example 2

[0035] Reference Figure 2 , Figure 3 and Figure 4 This is the second embodiment of the present invention. Based on the previous embodiment, a water-blocking ring 12 is fixedly installed on the outer surface of the wall 1 outside the wall hole 2, and the inner diameter of the water-blocking ring 12 is larger than the inner diameter of the wall hole 2. A waterproof cover 5 is fitted on the outer wall of the pipe 3. A sealing sleeve 7 is fixedly installed on the inner wall of one end of the waterproof cover 5, and the sealing sleeve 7 slides in contact with the outer wall of the pipe 3. The inner wall of the other end of the waterproof cover 5 is threadedly connected to the outer surface of the water-blocking ring 12. A sealing ring 8 is provided at the other end of the waterproof cover 5.

[0036] Specifically, a number of raised strips 6 are provided on the outer wall of one end of the waterproof cover 5, and the raised strips 6 and the waterproof cover 5 are integrally formed. The outer surface of the waterproof cover 5 is coated with waterproof paint. The waterproof cover 5 is funnel-shaped and the outer surface of the waterproof cover 5 has a certain tilt angle.

[0037] Furthermore, the waterproof cover 5 can seal and protect the waterproof structure at the connection between the pipe 3 and the wall 1, effectively preventing rainwater from splashing onto the connection and reducing the possibility of rainwater infiltration. Several integrally formed protrusions 6 on one end of the outer wall of the waterproof cover 5 facilitate rotation of the waterproof cover 5 to achieve a threaded connection with the water-blocking ring 12, making installation easy. The waterproof coating on the outer surface of the waterproof cover 5 further enhances its waterproof performance and extends its service life. The waterproof cover 5 is funnel-shaped with a certain angle on its outer surface, which facilitates rainwater to flow down the inclined surface, preventing rainwater from accumulating on the waterproof cover 5 and further improving the overall waterproof effect.

[0038] The working principle of this utility model is as follows: During installation, the sleeve 4 is first inserted into the wall hole 2, and the sealing connection layer 9 is used to seal and fix the sleeve 4 and the inner wall of the wall hole 2, thereby preventing rainwater from seeping in through the gap between the sleeve 4 and the wall hole 2. Then, the pipe 3 is inserted into the sleeve 4, so that the outer wall of the pipe 3 fits tightly with the annular limiting member 11 on the inner wall of the sleeve 4, ensuring the stability of the connection. Simultaneously, a sealing filler layer 10 is injected into the annular space between the pipe 3 and the sleeve 4, thereby ensuring good sealing performance between the sleeve 4 and the pipe 3, effectively preventing rainwater from flowing into the room along the outer wall of the pipe 3, achieving a highly efficient rainproof effect. This installation process does not employ any mechanical structure and has the advantages of simple installation and high stability.

[0039] After completing the installation of pipe 3 and sealing the connection between pipe 3 and wall 1, a waterproof cover 5 is fitted onto the outer wall of pipe 3 to further enhance the waterproofing effect. Simultaneously, a water-blocking ring 12 is pre-fixed to the outer surface of wall 1 with screws, located outside the wall hole 2. Next, the waterproof cover 5 is rotated using the protruding strip 6, creating a threaded connection between the waterproof cover 5 and the water-blocking ring 12, causing the sealing ring 8 at one end of the waterproof cover 5 to tightly abut against wall 1. At this time, the other end of the waterproof cover 5 is sealed to pipe 3 via a sealing sleeve 7. When the waterproof cover 5 is in place, it will be located outside wall 1, providing sealed protection for the waterproof structure at the connection between pipe 3 and wall 1. This effectively prevents rainwater from splashing onto the connection between pipe 3 and wall 1, reducing the probability of rainwater infiltration. It successfully solves the problems of easy aging and leakage found in existing rainproof measures, demonstrating good practicality and promotional value.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rainproof structure for through-wall pipes, characterized in that, It includes: A wall (1) is provided with a wall hole (2), a sleeve (4) is provided inside the wall hole (2), a pipe (3) is provided inside the sleeve (4), a sealing connection layer (9) is provided between the sleeve (4) and the wall hole (2), and a sealing filler layer (10) is provided between the pipe (3) and the sleeve (4).

2. The rainproof structure for a through-wall pipe according to claim 1, characterized in that: A water-blocking ring (12) is fixedly installed on the outer surface of the wall (1) outside the wall hole (2), and the inner diameter of the water-blocking ring (12) is larger than the inner diameter of the wall hole (2). A waterproof cover (5) is fitted on the outer wall of the pipe (3). A sealing sleeve (7) is fixedly installed on the inner wall of one end of the waterproof cover (5), and the sealing sleeve (7) slides in contact with the outer wall of the pipe (3). The inner wall of the other end of the waterproof cover (5) is threadedly connected to the outer surface of the water-blocking ring (12). A sealing ring (8) is provided on the other end of the waterproof cover (5).

3. The rainproof structure for a through-wall pipe according to claim 1, characterized in that: The inner surface of the sleeve (4) is provided with a number of annular limiting members (11), and the annular limiting members (11) are in close contact with the outer wall of the pipe (3).

4. The rainproof structure for a through-wall pipe according to claim 1, characterized in that: The sealing connection layer (9) is made of sealant, and the sealing filler layer (10) is made of rubber putty.

5. A rainproof structure for a through-wall pipe according to claim 2, characterized in that: The waterproof cover (5) has several raised strips (6) on one end of its outer wall, and the raised strips (6) and the waterproof cover (5) are integrally formed. The outer surface of the waterproof cover (5) is coated with waterproof paint.

6. A rainproof structure for a through-wall pipe according to claim 2, characterized in that: The waterproof cover (5) is formed in a trumpet shape, and the outer surface of the waterproof cover (5) is at a certain tilt angle.