Roof drainage pipe rear plugging anti-seepage device

Abstract

The utility model discloses a rear plugging anti-seepage device for a roof drain pipe. The rear plugging anti-seepage device comprises a rainwater hopper (1), the drain pipe (2), a rear plugging structure (3) and a water collecting hopper (4), the rainwater hopper is arranged in a drainage groove of a roof (6), one end of the drainage pipe is communicated with a bottom water outlet of the rainwater hopper, and the other end of the drainage pipe penetrates through the roof and extends to the bottom of a building. A bottom water outlet of the rainwater hopper and one end of the drainage pipe are in sealed connection with the roof through a rear plugging structure, and the water collecting hopper is arranged on the drainage pipe and located below the rear plugging structure; the top of the water collecting hopper is open, the top opening of the water collecting hopper faces the rear plugging structure, a water drainage opening (21) is formed in the water drainage pipe, and the water collecting hopper is communicated with the water drainage pipe through the water drainage opening. According to the roof drainage system, the drainage effect and the water seepage prevention effect of the roof drainage system are guaranteed through the double seepage prevention structures.

Description

Technical Field

[0001] The utility model relates to a drainage structure of a building, in particular to a rear-sealing and anti-seepage device for a roof drainage pipe. Background Art

[0002] Buildings are typically equipped with drainage pipes, extending from the top to the bottom, to drain rainwater that accumulates on the rooftop. Existing drainage pipes are mostly made of HDPE (high-density polyethylene), with a roof gutter often installed on top to collect rainwater. During construction, the roof gutter is fixed to the top of the building, with the drainage pipe connected to the bottom of the gutter, and the drainage pipe is sealed from the rooftop structure.

[0003] Although the existing technology adopts post-sealing waterproofing and anti-seepage measures under the rain gutter and at the junction of the drainage pipe and the roof, the post-sealing area is often prone to leakage due to improper operation of the construction workers and aging of the materials after long-term use, which poses a great hidden danger and affects the use of the building. Summary of the Invention

[0004] The purpose of the utility model is to provide a roof drainage pipe back-sealing anti-seepage device, which ensures the drainage effect and anti-seepage effect of the roof drainage system through a double anti-seepage structure.

[0005] The utility model is achieved in this way:

[0006] A roof drain pipe rear plugging and anti-seepage device comprises a rain gutter, a drain pipe, a rear plugging structure and a water collecting gutter; the rain gutter is arranged in a drainage ditch on the roof, one end of the drain pipe is connected with the bottom water outlet of the rain gutter, and the other end of the drain pipe passes through the roof and extends to the bottom of the building; the bottom water outlet of the rain gutter and one end of the drain pipe are sealed and connected with the roof at the intersection through the rear plugging structure, the water collecting gutter is arranged on the drain pipe and is located below the rear plugging structure; the top of the water collecting gutter is open, and the top opening of the water collecting gutter is arranged facing the rear plugging structure, a drain outlet is formed on the drain pipe, and the water collecting gutter is connected with the drain pipe through the drain outlet.

[0007] The water collecting bucket is a hemispherical structure that is wide at the top and narrow at the bottom, and the width of the top opening of the water collecting bucket is greater than the width of the rear blocking structure.

[0008] A support frame is provided at the bottom of the water collecting bucket, and the support frame is connected between the water collecting bucket and the drain pipe.

[0009] The water collecting bucket, drainage pipe and rainwater bucket are coaxially arranged.

[0010] The rear plugging structure is filled and formed by micro-expansion anti-seepage concrete.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The utility model is provided with a rear blocking structure and a water collecting bucket. The rear blocking structure seals and blocks the junction of the rainwater bucket, the drainage pipe and the roof, thereby achieving a first-level anti-seepage effect. The water collecting bucket collects leaked water below the rear blocking structure, thereby achieving a second-level anti-seepage effect. The double anti-seepage structure effectively ensures the anti-seepage performance of the rear blocking of the roof drainage pipe.

[0013] 2. The utility model is provided with a water collecting hopper and a support frame. The water collecting hopper has a hemispherical structure and a large volume. It can effectively collect leaked water under the rear plugging structure and drain it into the drain pipe for discharge. Even if leakage occurs due to improper construction of the rear plugging structure or aging of the material, the anti-seepage performance of the roof structure can be guaranteed. At the same time, the water collecting hopper is stably supported by the support frame, thereby improving the structural strength of the water collecting hopper, ensuring that it can reliably bear the seepage water and avoid deformation and damage.

[0014] 3. The utility model has the advantages of simple structure, no additional construction process, low cost, etc. It can be widely used in the construction of roof drainage systems and effectively reduce the maintenance cost of roof seepage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the utility model of the rear blocking and anti-seepage device for roof drainage pipes.

[0016] In the figure, 1 is a rainwater gutter, 2 is a drainage pipe, 21 is a drainage outlet, 3 is a rear blocking structure, 4 is a water collecting hopper, 5 is a support frame, and 6 is a roof. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Please see the attached Figure 1 , a roof drainage pipe rear plugging and anti-seepage device, comprising a rain gutter 1, a drainage pipe 2, a rear plugging structure 3 and a water collecting hopper 4; the rain gutter 1 is arranged in the drainage ditch of the roof 6, one end of the drainage pipe 2 is connected with the bottom water outlet of the rain gutter 1, and the other end of the drainage pipe 2 passes through the roof 6 and extends to the bottom of the building; the bottom water outlet of the rain gutter 1 and one end of the drainage pipe 2 are sealed and connected with the roof at the junction through the rear plugging structure 3, the water collecting hopper 4 is arranged on the drainage pipe 2 and is located below the rear plugging structure 3; the top of the water collecting hopper 4 is open, and the top opening of the water collecting hopper 4 is arranged facing the rear plugging structure 3, a drain outlet 21 is formed on the drainage pipe 2, and the water collecting hopper 4 is connected with the drainage pipe 2 through the drain outlet 21.

[0019] At the junction between the drain pipe 2, the rain gutter 1, and the roof 6, a rear blocking structure 3 is used to fill and block water, achieving a primary level of anti-seepage. Simultaneously, a water collection hopper 4 is installed below the rear blocking structure 3 on the drain pipe 2 to collect leaked water and drain it into the drain pipe 2, achieving a secondary level of anti-seepage. This dual anti-seepage structure ensures the roof drainage system's anti-seepage performance.

[0020] Preferably, the construction of the roof composite structure can be carried out during the construction of the roof 6 and its drainage grooves. The roof composite structure may include a protective surface layer, an isolation layer, a modified asphalt waterproof membrane, a fine stone concrete layer, an insulation layer, a slope layer, an air barrier layer, a cement mortar leveling layer, etc. from top to bottom, thereby improving the convergence and collection effect of rainwater at the rain gutter 1, and also improving the roof anti-seepage effect at the rain gutter 1.

[0021] The water collecting bucket 4 is a hemispherical structure that is wide at the top and narrow at the bottom, and the width of the top opening of the water collecting bucket 4 is greater than the width of the rear blocking structure 3, ensuring that the opening of the water collecting bucket 4 can cover the rear blocking area, and the spherical structure has a large volume, thereby ensuring that water leakage in the rear blocking area can be completely collected by the water collecting bucket 4, achieving a leak-proof effect.

[0022] Preferably, the size of the water collecting hopper 4 can be determined according to the size of the rear plugging structure 3, so that the water collecting hopper 4 can ensure the effective collection of all leaked water.

[0023] A support frame 5 is provided at the bottom of the water collecting bucket 4, which is connected between the water collecting bucket 4 and the drain pipe 2. It can be used to support the water collecting bucket 4, improve the strength and load-bearing capacity of the water collecting bucket 4, and prevent the water collecting bucket 4 from deformation and damage.

[0024] Preferably, the water collecting bucket 4 and the supporting frame 5 can be made of the same material as the drain pipe 2 and can be processed and formed together with the drain pipe 2 when the drain pipe 2 is produced.

[0025] The water collecting bucket 4, the drain pipe 2 and the rainwater bucket 1 are coaxially arranged to ensure the effective collection and gathering of rainwater, accumulated water and seepage water.

[0026] Preferably, the rear blocking structure 3 can be filled and formed with micro-expansion anti-seepage concrete, which has a good blocking effect and can effectively prevent leakage from occurring at the junction of the drainage pipe 2, the rain gutter 1 and the roof 6.

[0027] Please see the attached Figure 1 , the working principle of this utility model is:

[0028] The accumulated water on the building roof 6 is drained into the drainage ditch and collected by the rain gutter before flowing into the drain pipe 2 for discharge. When the drain pipe 2 and the rear sealing structure 3 between the rain gutter 1 and the roof 6 leak, the rainwater seeps out and falls into the water collecting hopper 4 below the rear sealing structure 3. The leaked rainwater is effectively collected by the water collecting hopper 4 to prevent it from seeping and dripping.

[0029] A plurality of drain outlets 21 are opened in the circumference of the drain pipe 2. The drain outlets 21 are located at the bottom height of the inner wall of the water collecting bucket 4. The rainwater in the water collecting bucket 4 is drained into the drain pipe 2 through the drain outlets 21. Since the water collecting bucket 4 is a hemispherical structure that is wide at the top and narrow at the bottom, it has a large volume, which ensures the collection of seepage water in the water collecting bucket 4. At the same time, it also facilitates the downward drainage of the collected water into the drain pipe 2, and the water will not accumulate in the water collecting bucket 4, which has a better anti-seepage effect.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roof drain pipe back-sealing and anti-seepage device, characterized by: The invention comprises a rain gutter (1), a drainage pipe (2), a rear blocking structure (3) and a water collecting hopper (4); the rain gutter (1) is arranged in a drainage groove of a roof (6); one end of the drainage pipe (2) is communicated with the bottom water outlet of the rain gutter (1); the other end of the drainage pipe (2) passes through the roof (6) and extends to the bottom of the building; the bottom water outlet of the rain gutter (1) and one end of the drainage pipe (2) are sealed and connected with the roof through the rear blocking structure (3); the water collecting hopper (4) is arranged on the drainage pipe (2) and is located below the rear blocking structure (3); the top of the water collecting hopper (4) is open, and the top opening of the water collecting hopper (4) is arranged facing the rear blocking structure (3); a drainage outlet (21) is formed on the drainage pipe (2), and the water collecting hopper (4) is communicated with the drainage pipe (2) through the drainage outlet (21).

2. The rear-sealing and anti-seepage device for roof drain pipes according to claim 1, characterized in that: The water collecting bucket (4) is a hemispherical structure that is wide at the top and narrow at the bottom, and the width of the top opening of the water collecting bucket (4) is greater than the width of the rear blocking structure (3).

3. The rear-sealing and anti-seepage device for roof drain pipes according to claim 1 or 2, characterized in that: A support frame (5) is provided at the bottom of the water collecting hopper (4), and the support frame (5) is connected between the water collecting hopper (4) and the drainage pipe (2).

4. The rear-sealing and anti-seepage device for roof drain pipes according to claim 1, characterized in that: The water collecting hopper (4), the drainage pipe (2) and the rainwater hopper (1) are coaxially arranged.

5. The rear-sealing and anti-seepage device for roof drain pipes according to claim 1, characterized in that: The rear blocking structure (3) is formed by filling with micro-expansion anti-seepage concrete.

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