Connecting structure of double-wall corrugated pipe and inspection well
By setting up an interposer, a pressure dispersion layer and a filler layer at the connection between the double-wall corrugated pipe and the concrete inspection well, the sealing connection problem between the double-wall corrugated pipe and the concrete inspection well is solved, and the sealing and water-closing effect are improved.
Patent Information
- Application Number
- CN202422654497.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-31
AI Technical Summary
How to achieve sealed connection between double-wall corrugated pipe and concrete inspection well to ensure water closure effect.
At the connection between the double-wall corrugated pipe and the concrete inspection well, the interposer layer, the interposer layer consists of a high-density polyethylene adhesive layer and a coarse sand layer, the pressure dispersion layer is a brick voucher, and the filling layer is a 1:2 cement mortar layer, which realizes sealing connection through the combination of these layers.
Effectively disperse the side wall pressure, prevent the double-wall corrugated pipe from being damaged due to concentrated stress, and ensure the sealing and water-closing effect of the connection between the double-wall corrugated pipe and the concrete inspection well.
Smart Images
Figure CN223282759U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a connection structure of a double-wall corrugated pipe and an inspection well, belonging to the technical field of inspection well construction. Background Art
[0002] With the steady advancement of national infrastructure and urbanization, underground drainage systems are increasingly demanding water-tightness. Double-wall corrugated pipe, as the mainstay of drainage systems, has seen significant development. Concrete inspection wells, due to their high cost-effectiveness and long service life, are commonly connected to double-wall corrugated pipe to form a pipe network during construction.
[0003] However, how to achieve a sealed connection between the double-wall corrugated pipe and the concrete inspection well to ensure the water-tight effect is a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a double-wall corrugated pipe and inspection well connection structure.
[0005] The utility model is achieved through the following technical solutions:
[0006] A double-wall corrugated pipe and inspection well connection structure includes a concrete inspection well and a double-wall corrugated pipe. A drain outlet is opened on the side wall of the concrete inspection well. One end of the double-wall corrugated pipe is inserted into the drain outlet and communicates with the interior of the concrete inspection well. An intermediary layer is provided on the outer wall of the end of the double-wall corrugated pipe inserted into the drain outlet. A pressure distribution layer is provided above the intermediary layer in the drain outlet. A filling layer is provided between the intermediary layer and the side wall of the drain outlet and between the intermediary layer and the pressure distribution layer.
[0007] The drain outlet is close to the bottom plate of the concrete inspection well and is arranged along the radial direction of the concrete inspection well.
[0008] The intermediate layer comprises a high-density polyethylene adhesive layer coated on the outer wall of the double-wall corrugated pipe and a coarse sand layer arranged on the high-density polyethylene adhesive layer.
[0009] The pressure dispersing layer is a brick coupon.
[0010] When the inner diameter of the double-wall corrugated pipe is less than 1000mm, the height of the brick arch is 125mm; when the inner diameter of the double-wall corrugated pipe is not less than 1000mm, the height of the brick arch is 250mm.
[0011] The filling layer is a 1:2 cement mortar layer.
[0012] A coarse sand pipe base is provided on the lower side of the double-wall corrugated pipe.
[0013] The beneficial effect of the present invention is that the side wall pressure from the upper side of the drain outlet is dispersed through the pressure distribution layer, preventing the double-wall corrugated pipe from being damaged due to concentrated force. On the one hand, the filling layer is tightly and sealedly connected to the outer wall of the double-wall corrugated pipe through the intermediate layer, and on the other hand, it is directly connected to the side wall of the drain outlet and the pressure distribution layer, ensuring the water-tight effect at the connection between the double-wall corrugated pipe 7 and the concrete inspection well. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the present utility model.
[0015] In the figure: 1-side wall, 2-pressure distribution layer, 3-filling layer, 4-intermediate layer, 5-bottom plate, 6-coarse sand pipe base, 7-double-wall corrugated pipe. DETAILED DESCRIPTION
[0016] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.
[0017] like Figure 1 As shown, the utility model discloses a double-walled corrugated pipe and inspection well connection structure, comprising a concrete inspection well and a double-walled corrugated pipe 7. A drain outlet is provided on the side wall 1 of the concrete inspection well. One end of the double-walled corrugated pipe 7 is inserted into the drain outlet and communicates with the interior of the concrete inspection well. An intermediary layer 4 is provided on the outer wall of the end of the double-walled corrugated pipe 7 inserted into the drain outlet. A pressure distribution layer 2 is provided above the intermediary layer 4 in the drain outlet. A packing layer 3 is provided between the intermediary layer 4 and the side wall of the drain outlet, and between the intermediary layer 4 and the pressure distribution layer 2. When in use, the pressure from the side wall 1 on the upper side of the drain outlet is dispersed by the pressure distribution layer 2, preventing the double-walled corrugated pipe 7 from being damaged due to concentrated force. The packing layer 3 is tightly and sealedly connected to the outer wall of the double-walled corrugated pipe 7 through the intermediary layer 4 on the one hand, and is directly connected to the side wall of the drain outlet and the pressure distribution layer 2 on the other hand, ensuring the water-tight effect at the connection between the double-walled corrugated pipe 7 and the concrete inspection well.
[0018] The drain outlet is close to the bottom plate 5 of the concrete inspection well and is arranged along the radial direction of the concrete inspection well.
[0019] The intermediate layer 4 includes a high-density polyethylene adhesive layer coated on the outer wall of the double-wall corrugated pipe 7 and a coarse sand layer provided on the high-density polyethylene adhesive layer.
[0020] The pressure distribution layer 2 is a brick-shaped coupon.
[0021] When the inner diameter of the double-wall corrugated pipe 7 is less than 1000 mm, the height of the brick arch is 125 mm. When the inner diameter of the double-wall corrugated pipe 7 is not less than 1000 mm, the height of the brick arch is 250 mm.
[0022] The filling layer 3 is a 1:2 cement mortar layer.
[0023] A coarse sand pipe base 6 is provided on the lower side of the double-wall corrugated pipe 7. When in use, the coarse sand pipe base 6 is close to the concrete inspection well to improve the installation stability of the double-wall corrugated pipe 7.
Claims
1. A double-wall corrugated pipe and inspection well connection structure, characterized by: The invention comprises a concrete inspection well and a double-walled corrugated pipe (7), wherein a drainage port is provided on the side wall (1) of the concrete inspection well, one end of the double-walled corrugated pipe (7) is inserted into the drainage port and communicates with the interior of the concrete inspection well, an intermediary layer (4) is provided on the outer wall of the end of the double-walled corrugated pipe (7) inserted into the drainage port, a pressure distribution layer (2) is provided above the intermediary layer (4) in the drainage port, and a filling layer (3) is provided between the intermediary layer (4) and the side wall of the drainage port and between the intermediary layer (4) and the pressure distribution layer (2).
2. The double-wall corrugated pipe and inspection well connection structure according to claim 1, characterized in that: The drain outlet is close to the bottom plate (5) of the concrete inspection well and is arranged along the radial direction of the concrete inspection well.
3. The double-wall corrugated pipe and inspection well connection structure according to claim 1, characterized in that: The intermediate layer (4) comprises a high-density polyethylene adhesive layer coated on the outer wall of the double-wall corrugated pipe (7), and a coarse sand layer provided on the high-density polyethylene adhesive layer.
4. The double-wall corrugated pipe and inspection well connection structure according to claim 1, characterized in that: The pressure distribution layer (2) is a brick-shaped coupon.
5. The double-wall corrugated pipe and inspection well connection structure according to claim 4, characterized in that: When the inner diameter of the double-wall corrugated pipe (7) is less than 1000 mm, the height of the brick arch is 125 mm; when the inner diameter of the double-wall corrugated pipe (7) is not less than 1000 mm, the height of the brick arch is 250 mm.
6. The double-wall corrugated pipe and inspection well connection structure according to claim 1, characterized in that: The filling layer (3) is a 1:2 cement mortar layer.
7. The double-wall corrugated pipe and inspection well connection structure according to claim 1, characterized in that: A coarse sand pipe base (6) is provided on the lower side of the double-wall corrugated pipe (7).