Water stop joint for building drainage plastic pipeline
By installing a waterproof ring and a core sealing zone on the building's drainage plastic pipes, the contact surface between the cement and the pipe fittings is increased, solving the problem of water leakage caused by thermal expansion and contraction and achieving a better sealing effect.
Patent Information
- Application Number
- CN202520148283.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Traditional building drainage plastic pipes can leak due to gaps at the cement interface caused by thermal expansion and contraction differences.
A waterstop joint for building drainage plastic pipes is designed. By setting an enlarged waterproof ring and core sealing area, the contact surface between cement and pipe fittings is increased. A cement filling groove is set on the outer surface of the waterstop joint body to limit thermal expansion and contraction and enhance the sealing performance.
It effectively prevents water leakage from the riser, enhances the sealing between the cement and the pipe fittings, and solves the problem of gaps caused by thermal expansion and contraction.
Smart Images
Figure CN223648770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage technology for civil buildings, specifically to a waterstop for building drainage plastic pipes. Background Technology
[0002] like Figure 1 As shown, when traditional building drainage plastic pipes pass through floor slabs, the contact surface between the pipes and the cement often leaks because the plastic pipes expand and contract at different rates with temperature changes. In other words, the plastic pipes contract more than the cement. Over a long period of time, this cyclical expansion and contraction causes gaps to form between the plastic pipes and the cement floor slab, resulting in water leakage.
[0003] Therefore, this utility model proposes a waterstop joint for building drainage plastic pipes with good sealing performance. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model proposes a water-stop joint for building drainage plastic pipes. By setting an enlarged waterproof ring and a core sealing area, the contact surface between cement and pipe fittings is increased, thereby enhancing the sealing performance and preventing water leakage from risers.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A waterstop joint for building drainage plastic pipes includes a waterstop joint body, a core sealing area on the outer surface of the waterstop joint body, and a cement filling groove between the core sealing area and the outer surface of the waterstop joint body. When cement is filled into the cement filling groove, the cement solidifies, thus restricting the thermal expansion and contraction of the core sealing area.
[0007] Furthermore, a set of waterproof rings is uniformly provided on the outer surface of the core sealing area.
[0008] Furthermore, a contact surface for cement and pipe fittings is provided between two adjacent waterproof rings.
[0009] Furthermore, the outer surface of the main body of the waterstop joint located below the core sealing area is provided with a second waterproof ring, and a second contact surface for cement and pipe fittings is provided between the second waterproof ring and the lowest first waterproof ring.
[0010] Furthermore, the end of the main body of the water-stop joint is a pipe connection area.
[0011] Furthermore, the connection method between the main body of the water-stop joint and the pipeline is hot-melt butt welding, hot-melt socket welding, or electrofusion socket welding.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1) This utility model provides a core sealing area on the outside of the water-stop joint body, and a cement filling groove is provided between the core sealing area and the upper surface of the water-stop joint body. When the cement is filled into the cement filling groove, the cement solidifies, which restricts the thermal expansion and contraction of the core sealing area.
[0014] 2) The core sealing area, contact surface one, and contact surface two of this utility model increase the contact area between cement and pipe fittings, thereby enhancing the sealing performance and preventing water leakage from the riser. Attached Figure Description
[0015] Figure 1 A schematic diagram of traditional building drainage plastic pipes penetrating floor slabs;
[0016] Figure 2 This is a sectional view of the water-stop joint of this utility model;
[0017] Figure 3 This utility model is a cement-filled waterstop joint;
[0018] Figure 4 This is a schematic diagram of the overall structure of the water-stop joint of this utility model.
[0019] In the diagram: 1. Main body of the water-stop joint; 2. Pipe connection area; 3. Core sealing area; 4. Cement filling groove; 5. Waterproof ring one; 6. Waterproof ring two; 7. Contact surface one; 8. Contact surface two; 9. Cement; 10. Cement structural layer. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the scope described herein.
[0021] Please refer to Figure 2-4 A waterstop for building drainage plastic pipes includes a waterstop body 1, a core sealing area 3 on the outside of the waterstop body 1, and a cement filling groove 4 between the core sealing area 3 and the upper surface of the waterstop body 1. When cement 9 is filled into the cement filling groove 4, the cement 9 solidifies, thus limiting the thermal expansion and contraction of the core sealing area 3.
[0022] A set of waterproof rings 5 are uniformly arranged on the outer surface of the core sealing area. In this embodiment, there are 3 waterproof rings 5. A contact surface 7 for cement and pipe fitting is provided between two adjacent waterproof rings 5.
[0023] In this embodiment, the outer surface of the main body 1 of the waterstop joint located below the core sealing area 3 is provided with a second waterproof ring 6. Between the second waterproof ring 6 and the lowest first waterproof ring 5, there is a second contact surface 8 for cement and pipe fittings. The core sealing area, the first contact surface 7, and the second contact surface 8 of this utility model increase the contact surface between cement 9 and pipe fittings, thereby enhancing the sealing performance and preventing water leakage from the riser.
[0024] The end of the main body 1 of the water-stop joint is the pipe connection area 2. The connection method between the main body 1 of the water-stop joint and the pipe is hot-melt butt welding, hot-melt socket welding, or electrofusion socket welding.
Claims
1. A waterstop joint for building drainage plastic pipes, comprising a waterstop joint body (1), characterized in that... The outer surface of the main body (1) of the waterstop joint is provided with a core sealing area (3), and a cement filling groove (4) is provided between the core sealing area (3) and the outer surface of the main body (1) of the waterstop joint. When the cement is filled into the cement filling groove (4), the cement solidifies, which restricts the thermal expansion and contraction of the core sealing area (3).
2. A waterstop for building drainage plastic pipes according to claim 1, characterized in that... A set of waterproof rings (5) are uniformly provided on the outer surface of the core sealing area (3).
3. A waterstop for building drainage plastic pipes according to claim 2, characterized in that... A contact surface (7) for cement and pipe fittings is provided between two adjacent waterproof rings (5).
4. A waterstop for building drainage plastic pipes according to claim 3, characterized in that... The outer surface of the main body (1) of the waterstop joint located below the core sealing area (3) is provided with a second waterproof ring (6), and a second contact surface (8) for cement and pipe fittings is provided between the second waterproof ring (6) and the lowest first waterproof ring (5).
5. A waterstop for building drainage plastic pipes according to claim 1, characterized in that... The end of the main body (1) of the waterstop joint is the pipe connection area (2).
6. A waterstop for building drainage plastic pipes according to claim 5, characterized in that... The connection between the main body (1) of the water-stop joint and the pipeline is by hot-melt butt welding, hot-melt socket welding, or electrofusion socket welding.