Drainage system applied to sloping roof
By installing a drainage system with water-collecting grooves and connecting pipes that do not protrude from the roof surface, the problem of the aesthetic impact of modern sloping roof drainage devices is solved, thus improving both aesthetics and rainwater collection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU FUCHUN SHANJU GROUP CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-15
AI Technical Summary
Modern buildings often use protruding water tanks and supports for their sloping roof drainage systems, which can detract from the aesthetic appeal of retro sloping roofs and obstruct indoor lighting and views.
The system employs first and second water-retaining grooves that do not protrude from the roof surface, respectively located in the middle and bottom of the roof. Rainwater is guided into the second water-retaining groove through connecting pipes and discharged through drainage pipes. Combined with a waterproof layer and a water-blocking plate, this ensures that rainwater collection and discharge do not affect the aesthetics.
It achieves rainwater collection and discharge without affecting the aesthetics of the sloping roof, reduces obstruction of indoor lighting and views, and optimizes rainwater collection efficiency.
Smart Images
Figure CN224244266U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sloping roof drainage technology, specifically relating to a drainage system applied to sloping roofs. Background Technology
[0002] In modern architecture, to enhance the aesthetic appeal of buildings, retro-style sloping roofs have emerged, featuring a sloping roof surface that showcases a classic, vintage beauty. Because sloping roofs inherently function as drainage systems, their current drainage mechanisms are relatively simple. Typically, a water-collecting trough is installed along the bottom edge of the roof, its length no less than the eaves. This trough is connected to a drainpipe, allowing water to flow naturally down the slope into the trough, and then through the drainpipe to a ground-level drainage ditch or well. The trough needs to protrude beyond the eaves to catch all the drainage, and with its own fixing devices, additional structures are added outside and below the eaves. However, the water-collecting trough and its fixing devices are not essential components of traditional roofs; they are products of modern architecture and thus detract from the aesthetic appeal of retro-style sloping roofs. Utility Model Content
[0003] The technical problem this utility model aims to solve is that the drainage device for sloping roofs in modern buildings generally adopts the form of a protruding water storage tank and a matching support. The water storage tank and its support are not essential parts of ancient roofs, but are products of modern architecture. This will affect the aesthetics of retro sloping roofs, and the water storage tank and its support will block indoor lighting and outdoor views.
[0004] This utility model provides a drainage system for sloping roofs, including a first water-collecting groove and a second water-collecting groove that are parallel to each other. The first water-collecting groove is located in the middle of the sloping roof, and the second water-collecting groove is located near the bottom of the sloping roof and does not protrude from the bottom eaves of the roof. The first water-collecting groove is parallel to the length direction of the bottom eaves of the sloping roof. The two ends of the first water-collecting groove are respectively aligned with the two side edges of the sloping roof, and the two ends of the second water-collecting groove are also respectively aligned with the two side edges of the sloping roof. Both ends of the first and second water-collecting grooves are closed to prevent rainwater collected in the grooves from overflowing from the ends.
[0005] The top of the first water storage trough is open and does not protrude from the roof portion on which it is located. The bottom of the first water storage trough protrudes downward from the roof. The bottom of the first water storage trough is connected to the bottom of the second water storage trough through several connecting pipes, which are used to drain the rainwater collected in the first water storage trough into the second water storage trough.
[0006] The top of the second water storage trough is open and does not protrude from the roof portion on which it is located. The bottom of the second water storage trough protrudes downward from the roof. At least one drain pipe is connected to the bottom of the second water storage trough for draining rainwater.
[0007] Optionally, the sloping roof is an inclined square, with its top and bottom edges (i.e., the bottom eaves) parallel to the ground, i.e., both are horizontal, and the first and second water storage grooves are also parallel to the ground.
[0008] Optionally, vertical first baffles are provided at both ends of the first water storage groove, with the top edge of the first baffle flush with the corresponding roof edge; vertical second baffles are provided at both ends of the second water storage groove, with the top edge of the second baffle flush with the corresponding roof edge, so as not to affect the overall flatness and appearance of the sloping roof.
[0009] Optionally, a waterproof layer may be laid inside the first water storage groove, the second water storage groove, the inner side of the first water baffle, and the inner side of the second water baffle to prevent water leakage.
[0010] Optionally, the longitudinal section of the first water storage groove is selected from square, trapezoidal (smaller at the top and larger at the bottom), or arc-shaped.
[0011] Optionally, the plurality of connecting pipes are evenly distributed along the length of the first water storage groove, and the connecting pipes are located below the lower surface of the roof and are arranged in accordance with the shape of the roof so that the connecting pipes are attached to the lower surface of the roof.
[0012] Optionally, the second water storage groove includes an upper groove and a lower groove that are interconnected. The upper groove extends through the roof, and the lower groove is located below the roof. The lower groove extends towards the eaves at the bottom of the roof. The lower groove is irregularly shaped like a water droplet or a bladder and is attached to the lower surface of the roof, so that the lower groove adapts to the shape of the roof. Visually, the lower groove is integrated with the roof as much as possible, minimizing protrusion and obstruction.
[0013] Alternatively, the connecting pipe is connected to the bottom of the lower groove; the bottom of the lower groove is higher than the bottom of the roof eaves.
[0014] The drainage system for sloping roofs described in this utility model has the following beneficial effects:
[0015] (1) A first water storage groove and a second water storage groove are set below the sloping roof. The two grooves do not protrude from the roof surface and do not affect the aesthetics of the retro sloping roof. The second water storage groove does not protrude from the bottom eaves of the roof and does not block indoor lighting or outdoor views.
[0016] (2) The first water storage groove receives rainwater flowing down from the upper part of the roof, the second water storage groove receives rainwater flowing down from the lower part of the roof and rainwater introduced into the first water storage groove by the connecting pipe, and the rainwater in the second water storage groove is discharged by the drain pipe. This forms two grooves to receive rainwater from the roof, reducing the burden on a single groove.
[0017] (3) The bottoms of both grooves protrude downwards from the roof, and the connecting pipes under the roof make full use of the space under the sloping roof. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of a drainage system applied to a sloping roof;
[0019] Figure 2 This is a schematic diagram of the first water storage groove and the connecting pipe.
[0020] In the attached diagram, 1-first water storage groove, 2-second water storage groove, 3-roof, 4-connecting pipe, 5-drainage pipe, 6-lower groove, 7-upper groove. Detailed Implementation
[0021] This embodiment provides a drainage system for sloping roofs, such as... Figures 1-2 As shown, the structure includes a first water-collecting groove 1 and a second water-collecting groove 2 that are parallel to each other. The first water-collecting groove 1 is located in the middle of the sloping roof 3, and the second water-collecting groove 2 is located near the bottom of the sloping roof 3 and does not protrude from the bottom eaves of the roof. The first water-collecting groove 1 is parallel to the length direction of the bottom eaves of the sloping roof. The two ends of the first water-collecting groove 1 are aligned with the two sides of the sloping roof, and the two ends of the second water-collecting groove 2 are also aligned with the two sides of the sloping roof. Both ends of the first water-collecting groove 1 and the second water-collecting groove 2 are closed to prevent rainwater collected in the grooves from overflowing from both ends.
[0022] The top of the first water storage trough 1 is open and does not protrude from the roof part on which it is located. The bottom of the first water storage trough 1 protrudes downward from the roof. The bottom of the first water storage trough 1 is connected to the bottom of the second water storage trough 2 through several connecting pipes 4, which are used to drain the rainwater collected by the first water storage trough 1 into the second water storage trough 2.
[0023] The top of the second water storage groove 2 is open and does not protrude from the roof portion it is on. The bottom of the second water storage groove 2 protrudes downward from the roof. The bottom of the second water storage groove 2 is connected to at least one drain pipe 5 for draining rainwater.
[0024] Optionally, the sloping roof is an inclined square with its top and bottom edges (i.e., the bottom eaves) parallel to the ground, i.e., both are horizontal, and the first water storage groove 1 and the second water storage groove 2 are also horizontal.
[0025] Optionally, vertical first baffles are respectively provided at both ends of the first water storage groove 1, and the top edge of the first baffle is flush with the corresponding roof edge; vertical second baffles are respectively provided at both ends of the second water storage groove 2, and the top edge of the second baffle is flush with the corresponding roof edge, so as not to affect the overall flatness and appearance of the sloping roof.
[0026] Optionally, a waterproof layer may be laid inside the first water storage groove 1, the second water storage groove 2, the inner side of the first water baffle, and the inner side of the second water baffle to prevent water leakage.
[0027] Optionally, the longitudinal section of the first water storage groove 1 can be selected from square, trapezoidal (smaller at the top and larger at the bottom), or arc shape. The shape of the longitudinal section of the first water storage groove 1 can be selected according to the actual situation of the space under the roof.
[0028] Optionally, the plurality of connecting pipes 4 are evenly distributed along the length of the first water storage groove 1. The connecting pipes 4 are located below the lower surface of the roof and are set in accordance with the shape of the roof, so that the connecting pipes 4 are attached to the lower surface of the roof. The connecting pipes 4 are protected by the roof and are also convenient for maintenance of the connecting pipes 4 indoors.
[0029] Optionally, the second water storage groove 2 includes an upper groove 7 and a lower groove 6 that are interconnected. The upper groove 7 penetrates through the roof, and the lower groove 6 is located below the roof. The lower groove 6 extends towards the bottom of the roof eaves. The lower groove 6 is irregularly shaped like a water droplet or a bladder and is attached to the lower surface of the roof, so that the lower groove 6 adapts to the shape of the roof. Visually, the lower groove 6 is integrated with the roof as much as possible, minimizing protrusion and obstruction.
[0030] Alternatively, the connecting pipe 4 is connected to the bottom of the lower groove 6; the bottom of the lower groove 6 is higher than the bottom of the roof eaves.
Claims
1. A drainage system for sloping roofs, characterized in that, The system includes a first water-collecting groove and a second water-collecting groove that are parallel to each other. The first water-collecting groove is located in the middle of the sloping roof, and the second water-collecting groove is located near the bottom of the sloping roof and does not protrude from the bottom eaves of the roof. The first water-collecting groove is parallel to the length direction of the bottom eaves of the sloping roof. The two ends of the first water-collecting groove are aligned with the two sides of the sloping roof, and the two ends of the second water-collecting groove are also aligned with the two sides of the sloping roof. Both ends of the first and second water-collecting grooves are closed to prevent rainwater collected in the grooves from overflowing from the ends. The top of the first water storage trough is open and does not protrude from the roof portion on which it is located. The bottom of the first water storage trough protrudes downward from the roof. The bottom of the first water storage trough is connected to the bottom of the second water storage trough through several connecting pipes, which are used to drain the rainwater collected in the first water storage trough into the second water storage trough. The top of the second water storage trough is open and does not protrude from the roof portion on which it is located. The bottom of the second water storage trough protrudes downward from the roof. At least one drain pipe is connected to the bottom of the second water storage trough for draining rainwater.
2. The drainage system for sloping roofs according to claim 1, characterized in that, The sloping roof is an inclined square with its top and bottom edges parallel to the ground, and the first and second water storage grooves are also parallel to the ground.
3. The drainage system for sloping roofs according to claim 1, characterized in that, The first water storage groove is provided with vertical first baffles at both ends, and the top edge of the first baffle is flush with the corresponding roof edge; the second water storage groove is provided with vertical second baffles at both ends, and the top edge of the second baffle is flush with the corresponding roof edge, so as not to affect the overall flatness and appearance of the sloping roof.
4. The drainage system for sloping roofs according to claim 3, characterized in that, A waterproof layer is laid inside the first water storage groove, the second water storage groove, the inner side of the first water baffle, and the inner side of the second water baffle to prevent water leakage.
5. The drainage system for sloping roofs according to claim 1, characterized in that, The longitudinal section of the first water storage groove is selected from square, trapezoidal (smaller at the top and larger at the bottom), and arc shape.
6. The drainage system for sloping roofs according to claim 1, characterized in that, The plurality of connecting pipes are evenly distributed along the length of the first water storage groove. The connecting pipes are located below the lower surface of the roof and are arranged in accordance with the shape of the roof so that the connecting pipes are attached to the lower surface of the roof.
7. The drainage system for sloping roofs according to claim 1, characterized in that, The second water storage groove includes an upper groove and a lower groove that are interconnected. The upper groove extends through the roof, and the lower groove is located below the roof. The lower groove extends towards the eaves at the bottom of the roof and is attached to the lower surface of the roof, so that the lower groove adapts to the shape of the roof and visually integrates the lower groove with the roof as much as possible.
8. The drainage system for sloping roofs according to claim 7, characterized in that, The connecting pipe connects to the bottom of the lower groove; the bottom of the lower groove is higher than the bottom of the roof eaves.