Reinforcing structure for outdoor pipeline to penetrate through outer wall
By using a reinforced structure consisting of a water-stop steel sleeve, stirrups, and grouting sections on the outer wall of the outlet pipe, the problem of easy damage to the outlet pipe was solved, and the durability and waterproofing of the outlet pipe were improved.
Patent Information
- Application Number
- CN202520012624.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2035-01-03
AI Technical Summary
In existing technologies, the portion of the pipes installed inside the wall is prone to damage, leading to difficulties in later maintenance.
The reinforcement structure employs water-stop steel sleeves, stirrups, and grouting sections, combined with water-stop rubber strips and waterproof mortar, to form an integral reinforcement of the portion of the pipes installed on the exterior wall.
It effectively protects the pipes exiting the building, improves their durability and waterproof performance, and simplifies the maintenance process.
Smart Images

Figure CN223511665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and specifically refers to a reinforcement structure for pipes passing through external walls. Background Technology
[0002] In urban buildings, the construction method for municipal outgoing pipes is conventional. Compared with the outgoing pipe openings in newly built buildings, the municipal outgoing pipes passing through the external wall reinforcement structure of existing buildings have the following advantages: shorter construction period, convenient construction, and lower cost. However, the part of the outgoing pipe installed inside the building is difficult to replace later. Since the outgoing pipe is usually directly installed in the wall, this part of the outgoing pipe installed in the wall is easily damaged, leading to difficulties in later maintenance. Utility Model Content
[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a reinforcement structure for the outlet pipe passing through the exterior wall. By reinforcing the part set in the exterior wall, the part of the outlet pipe set in the exterior wall is protected.
[0004] The technical solution to achieve the above objective is a reinforcement structure for an outlet pipe passing through an exterior wall. A construction hole is formed in the exterior wall, and the outlet pipe passes through the construction hole. The reinforcement structure includes:
[0005] A water-stop steel sleeve fitted onto the outlet pipe and located inside the outer wall;
[0006] The first grouting section is formed between the water-stop steel sleeve and the outlet pipe;
[0007] The stirrups fitted onto the outside of the water-stop steel sleeve; and
[0008] The second grouting section is formed between the waterstop steel sleeve and the outer wall.
[0009] Furthermore, hemp fiber is installed between the water-stop steel sleeve and the outlet pipe.
[0010] Furthermore, the stirrups include:
[0011] Several first ring hoops are fitted over the outside of the water-stop steel sleeve;
[0012] Several second rings fitted around the first ring; and
[0013] Connecting bars between the first and second ring hoops at corresponding positions.
[0014] Furthermore, a structural wall is provided on one side of the exterior wall, and an installation hole is formed on the structural wall corresponding to the position of the construction hole. The outlet pipe passes through the installation hole and the construction hole. The diameter of the installation hole is smaller than the diameter of the construction hole. A plurality of water-stop strips are provided on the side of the structural wall near the exterior wall, and the water-stop strips are spaced apart along the outer periphery of the installation hole.
[0015] Furthermore, the waterproofing strip is fixed to the structural wall using cement nails.
[0016] Furthermore, the space between the exterior wall and the structural wall is filled with waterproof mortar.
[0017] Furthermore, the length of the water-stop steel sleeve and the thickness of the outer wall are matched to the sum of the thickness of the structural wall.
[0018] Furthermore, the material of the second grouting section is compatible with the material of the exterior wall.
[0019] Furthermore, the stirrups are connected to the reinforcing bars inside the outer wall.
[0020] Compared with the prior art, this utility model has the following advantages:
[0021] By reinforcing the portion of the pipes located on the exterior wall, the portion of the pipes located inside the exterior wall can be protected. Attached Figure Description
[0022] Figure 1 A schematic diagram of a structural reinforcement structure for an outlet pipe passing through an exterior wall;
[0023] Figure 2 A schematic diagram of a construction hole for an outlet pipe passing through an external wall reinforcement structure;
[0024] Legend: 1. Exterior wall; 2. Outlet pipe; 3. Stirrup; 4. Water-stop steel sleeve; 5. First grouting section; 6. Second grouting section; 7. Waterproof mortar; 8. Oil hemp; 9. Water-stop rubber strip. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] See Figure 1 A reinforcement structure for an outlet pipe passing through an exterior wall is provided. An exterior wall 1 has a construction hole, through which an outlet pipe 2 passes. The reinforcement structure includes: a water-stop steel sleeve 4 fitted onto the outlet pipe 2 and located within the exterior wall 1; a first grouting section 5 cast between the water-stop steel sleeve 4 and the outlet pipe 2; a stirrup 3 fitted onto the outside of the water-stop steel sleeve 4; and a second grouting section 6 cast between the water-stop steel sleeve 4 and the exterior wall 1.
[0027] In this utility model, a preferred embodiment is as follows: the wall thickness of the outer wall 1 is 400mm, and the concrete strength grade is C45P8. When constructing the outer wall 1, the construction hole structure is reserved, and a water-stop steel sleeve 4 is installed over the irrigation outlet pipe. Preferably, the water-stop steel sleeve 4 is a hot-dip galvanized round water-stop steel sleeve 4 pipe, the pipe diameter of the water-stop steel sleeve 4 is matched with the outer diameter of the outlet pipe 2, and the wall thickness of the water-stop steel sleeve 4 is 10mm. Stirrups 3 are set outside the water-stop steel sleeve 4, and grouting material is filled into the construction hole and between the water-stop steel sleeve 4 and the outlet pipe 2. The grouting material is A60 CGM grouting material, which forms an integral whole between the construction hole and the original outer wall 1, thereby achieving a reinforcement effect.
[0028] Furthermore, the length of the water-stop steel sleeve is adapted to the length of the outer wall, and the pouring length of the first grouting section and the second grouting section is adapted to the length of the water-stop steel sleeve.
[0029] In a preferred embodiment of this utility model, the exterior wall 1 includes a reinforced concrete exterior wall 1 and a reinforced concrete pipe gallery, which are fitted together. A first construction hole is formed on the reinforced concrete exterior wall 1, and a second construction hole is formed on the reinforced concrete pipe gallery. The first construction hole and the second construction hole are correspondingly arranged. The outlet pipe 2 passes through the first construction hole and the second construction hole. The gap between the reinforced concrete exterior wall 1 and the reinforced concrete pipe gallery is filled with waterproof mortar 7 to ensure the waterproofness of the gap between the outlet pipe 2 and the reinforced concrete exterior wall 1 and the reinforced concrete pipe gallery.
[0030] Furthermore, an oiled hemp fiber 8 is installed between the water-stop steel sleeve 4 and the outlet pipe 2. This oiled hemp fiber 8 has high strength, wear resistance, and good sealing performance.
[0031] Furthermore, the stirrup 3 includes: a plurality of first ring stirrups fitted outside the water-stop steel sleeve 4; a plurality of second ring stirrups fitted outside the first ring stirrups; and connecting bars connecting the first ring stirrups and the second ring stirrups at corresponding positions.
[0032] Furthermore, a structural wall is provided on one side of the exterior wall, and an installation hole is formed in the structural wall corresponding to the position of the construction hole. The outlet pipe passes through the installation hole and the construction hole. The diameter of the installation hole is smaller than the diameter of the construction hole. A plurality of water-stop strips are provided on the side of the structural wall near the exterior wall, and the water-stop strips are spaced apart along the outer periphery of the installation hole. Preferably, the water-stop strip 9 is a water-swellable water-stop strip 9, and the gap between two adjacent water-stop strips is 150mm. This water-stop adjustment can prevent water penetration at weak points in the waterproofing.
[0033] Furthermore, the length of the water-stop steel sleeve is matched with the thickness of the outer wall, the thickness of the structural wall, and the width of the gap between the outer wall and the structural wall.
[0034] Furthermore, the waterproofing strip 9 is fixed to the structural wall by cement nails.
[0035] Furthermore, the material of the second grouting section 6 is compatible with the material of the outer wall 1. Preferably, the outer wall 1, the second grouting section 6, and the first grouting section 5 are made of A60 CGM grouting material, which integrates the newly added opening with the original structure to achieve a reinforcement effect.
[0036] Furthermore, the stirrups 3 are connected to the reinforcing bars inside the outer wall 1. Preferably, during the pouring of the outer wall 1, the reinforcing bars inside the wall can be pre-reserved in the construction hole.
[0037] The following describes the usage process of the present invention's reinforcement structure for pipes passing through external walls.
[0038] The thickness of the outer wall 1 is 400mm, and the concrete strength grade is C45P8. When constructing the outer wall 1, the construction hole structure is reserved, and the irrigation outlet pipe is fitted with a water-stop steel sleeve 4. Preferably, the water-stop steel sleeve 4 is a hot-dip galvanized round water-stop steel sleeve 4 pipe. The pipe diameter of the water-stop steel sleeve 4 matches the outer diameter of the outlet pipe 2, and the wall thickness of the water-stop steel sleeve 4 is 10mm. Stirrups 3 are set outside the water-stop steel sleeve 4, and grouting material is filled into the construction hole and between the water-stop steel sleeve 4 and the outlet pipe 2. The grouting material is A60CGM grouting material, which integrates the construction hole with the original outer wall 1 to achieve a reinforcement effect.
[0039] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.
Claims
1. A reinforcement structure for an outlet pipe passing through an exterior wall, wherein a construction hole is formed in the exterior wall, and an outlet pipe is inserted through the construction hole, characterized in that... The reinforcement structure includes: A water-stop steel sleeve fitted onto the outlet pipe and located inside the outer wall; The first grouting section is formed between the water-stop steel sleeve and the outlet pipe; The stirrups fitted onto the outside of the water-stop steel sleeve; and The second grouting section is formed between the waterstop steel sleeve and the outer wall.
2. The reinforcement structure for an outlet pipe penetrating an exterior wall according to claim 1, characterized in that: Oiled hemp is installed between the water-stop steel sleeve and the outlet pipe.
3. The reinforcement structure for an outlet pipe penetrating an exterior wall according to claim 1, characterized in that, The stirrups include: Several first ring hoops are fitted over the outside of the water-stop steel sleeve; Several second rings fitted around the first ring; and Connecting bars between the first and second ring hoops at corresponding positions.
4. The reinforcement structure for an outlet pipe penetrating an exterior wall according to claim 1, characterized in that: A structural wall is provided on one side of the exterior wall, and an installation hole is formed on the structural wall corresponding to the position of the construction hole. The outlet pipe passes through the installation hole and the construction hole. The diameter of the installation hole is smaller than the diameter of the construction hole. A number of water-stop strips are provided on the side of the structural wall near the exterior wall, and the water-stop strips are spaced apart along the outer periphery of the installation hole.
5. The reinforcement structure for an outlet pipe penetrating an exterior wall according to claim 4, characterized in that: The waterproofing strip is fixed to the structural wall with cement nails.
6. The reinforcement structure for an outlet pipe passing through an exterior wall according to claim 4, characterized in that: Waterproof mortar is used to fill the space between the exterior wall and the structural wall.
7. A reinforcement structure for an outlet pipe penetrating an exterior wall according to claim 4, characterized in that: The length of the water-stop steel sleeve is matched with the thickness of the outer wall, the thickness of the structural wall, and the width of the gap between the outer wall and the structural wall.
8. The reinforcement structure for an outlet pipe penetrating an exterior wall according to claim 1, characterized in that: The material of the second grouting section is compatible with the material of the exterior wall.
9. A reinforcement structure for an outlet pipe penetrating an exterior wall according to claim 1, characterized in that: The stirrups are connected to the reinforcing bars inside the outer wall.