Structure for preventing dew and rainwater from flowing backwards for terrace
By designing a sloping floor and a hemispherical drain on the terrace, combined with an overflow pipe structure, the problem of water backflow from the terrace into the room was solved, achieving effective drainage and protection.
Patent Information
- Application Number
- CN202520129549.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The solid brick or concrete retaining wall around the terrace is higher than the indoor ground level. There are too few drainage drains or the drains are blocked by leaves and debris, which causes water to back up from the terrace and flow into the room.
Design a terrace rainwater backflow prevention structure, adopting a sloping ground structure and a hemispherical floor drain, with an overflow pipe connected to the floor drain. The center of the overflow pipe is lower than the indoor ground to increase drainage and prevent water from seeping into the room.
Effectively prevents water from the terrace from flowing back into the room, ensures smooth drainage, avoids water seepage into the room, and adapts to the drainage needs of terraces of different sizes.
Smart Images
Figure CN223738713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building decoration and renovation, specifically to a terrace structure to prevent rainwater backflow. Background Technology
[0002] During villa decoration and renovation, a common problem is that during heavy rainstorms, water from the terrace floor flows back into the house. The reason for this is that the solid brick or concrete retaining wall around the terrace is higher than the indoor floor level, and there are too few drainage drains or the drains are blocked by leaves and other debris, resulting in poor drainage. Utility Model Content
[0003] In view of the problem in the prior art where the solid retaining wall of the terrace, made of brick or concrete, is higher than the indoor ground level, and there are too few drainage drains or the drains are blocked by leaves and other debris, resulting in poor drainage and water backflow into the room, this utility model provides a terrace rainwater backflow prevention structure.
[0004] This utility model provides a terrace rainwater backflow prevention structure, which includes: an indoor room with an indoor floor, a terrace built on the outside of the indoor room with a terrace floor, the upper surface of which is sloping, a retaining wall surrounding the outside of the terrace, a floor drain located at the bottom of the slope and close to the retaining wall, connected to a drainage pipe below it, and an overflow pipe located on the retaining wall and corresponding to the position of the floor drain, wherein the center of the overflow pipe is lower than the indoor floor level.
[0005] The terrace anti-dew and rainwater backflow structure provided by this utility model may also have the following feature: the upper part of the drain is hemispherical and higher than the terrace ground.
[0006] The terrace rainwater backflow prevention structure provided by this utility model may also have the following feature: the diameter of the drainage pipe is 50mm or 75mm.
[0007] The terrace rainwater backflow prevention structure provided by this utility model can also have the following feature: when the area of the terrace is greater than 8m² 2 Alternatively, if the length of the terrace is greater than 5m, there must be at least two floor drains.
[0008] The terrace anti-dew and rainwater backflow structure provided by this utility model may also have the following feature: when there are two floor drains, the two floor drains are respectively set on the adjacent two sides of the terrace floor.
[0009] The terrace rainwater backflow prevention structure provided by this utility model may also have the following feature: the number of overflow pipes corresponds to the number of floor drains.
[0010] The terrace rainwater backflow prevention structure provided by this utility model may also have the following feature: the outer end of the overflow pipe extends 100~150mm beyond the outer surface of the retaining wall.
[0011] The terrace rainwater backflow prevention structure provided by this utility model may also have the following feature: the center of the overflow pipe is 50-100mm lower than the indoor ground level.
[0012] The beneficial effects of this utility model are as follows:
[0013] This utility model's terrace rainwater backflow prevention structure includes an indoor room, a terrace, a retaining wall, a floor drain, and an overflow pipe. The indoor room has an indoor floor; the terrace is built outside the indoor room and has a terrace floor with a sloping upper surface; the retaining wall surrounds the outside of the terrace; the floor drain is located at the bottom of the slope, close to the retaining wall, and connected to the drainage pipe below it; the overflow pipe is located on the retaining wall, corresponding to the position of the floor drain. The center of the overflow pipe is lower than the indoor floor level. Based on this terrace rainwater backflow prevention structure, by utilizing the sloping structure of the terrace floor and placing the floor drain at the bottom of the slope, rainwater can flow along the slope to the floor drain, reducing the risk of water seepage and leakage from the terrace into the room. In addition, the structure is equipped with an overflow pipe. When the rainfall reaches a certain level and the floor drain cannot keep up, the water on the terrace will reach the overflow pipe and be discharged outwards. The center of the overflow pipe is lower than the indoor floor level, so the overflow pipe can increase the drainage of the terrace and prevent water from seeping into the room.
[0014] In addition, the upper part of the drain is hemispherical and higher than the terrace floor, so the drain will not be covered by leaves or other debris floating in the water, ensuring that drainage is always smooth.
[0015] In addition, when the area of the terrace is greater than 8m 2 Alternatively, if the terrace is longer than 5 meters, there should be at least two floor drains. When there are two floor drains, they should be located on adjacent sides of the terrace floor, with the number of overflow pipes corresponding to the number of floor drains. As the terrace area increases, the number of floor drains should be appropriately increased to enhance drainage and prevent water seepage into the room.
[0016] Furthermore, the center of the overflow pipe in this application is 50-100mm lower than the indoor floor level. This ensures that even if there is water accumulation on the terrace, the water will be discharged through the overflow pipe before flowing back into the room. Attached Figure Description
[0017] Figure 1This is a schematic diagram of the structure of the terrace rainwater backflow prevention structure in an embodiment of this utility model. Detailed Implementation
[0018] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0019] <Example 1>
[0020] This terrace rainwater backflow prevention structure is suitable for house structures with terraces and balconies, and is used to drain water that accumulates on the terrace or balcony due to rainfall or other reasons.
[0021] The terrace's rainwater backflow prevention structure includes an interior, a terrace, a retaining wall 30, a floor drain 40, and an overflow pipe 50.
[0022] The interior refers to the interior structure of the house, including the interior floor 11.
[0023] The terrace is built on the exterior of the interior, with its base being the terrace floor 21, which transfers its own load and the loads on it to the surrounding beams and columns. A terrace floor 22 is laid on the terrace floor 21; this is the finished terrace floor, with a surface layer of ceramic tiles or stone, and a sloping upper surface. The slope of this surface is close to the interior floor 11, and the bottom of the slope is close to the retaining wall 30.
[0024] A retaining wall 30 is erected on the outside of the terrace, enclosing three sides of the terrace. The retaining wall 30 is constructed of brick or concrete, and its height is higher than the indoor ground level 11.
[0025] The floor drain 40 is located at the bottom of the slope, close to the retaining wall 30, and connected to the drain pipe below it, thereby draining accumulated water into the community's drainage system. The diameter of the drain pipe is 50mm or 75mm. In this embodiment, the diameter of the drain pipe connected to the floor drain 40 is 75mm.
[0026] Additionally, when the area of the terrace is greater than 8m² 2 Alternatively, if the length of the terrace is greater than 5m, the number of floor drains 40 must be at least two. In this embodiment, the area of the terrace is greater than 8m². 2 There are two floor drains 40, which are located at the bottom of the slope and close to the bottom of the two adjacent retaining walls 30.
[0027] The upper part of the drain 40 is hemispherical and is more than 50mm higher than the upper surface of the terrace floor 22.
[0028] An overflow pipe 50 is installed through the retaining wall 30. The number of overflow pipes 50 corresponds to the number of floor drains 40, and they are positioned directly above the floor drains 30.
[0029] The overflow pipe 50 is a 75mm diameter PVC-U pipe, with one end extending 100-150mm beyond the outer surface of the retaining wall 30, and its center position height h is 50-100mm lower than the height H of the indoor floor 11. In this embodiment, one end of the overflow pipe 50 extends 150mm beyond the outer surface of the retaining wall 30, and its center position height is 80mm lower than the height of the indoor floor 11.
[0030] Water accumulated on the terrace can flow from floor drain 40 to the community drainage system; when floor drain 40 cannot meet the drainage needs, water begins to accumulate on the terrace. When the water rises to overflow pipe 50, the water begins to drain from overflow pipe 50. Because overflow pipe 50 is lower than the indoor floor 11, the water flowing out from the overflow pipe avoids the possibility of water seeping into the room.
[0031] <Example 2>
[0032] This terrace rainwater backflow prevention structure is suitable for house structures with terraces and balconies, and is used to drain water that accumulates on the terrace or balcony due to rainfall or other reasons.
[0033] The terrace's rainwater backflow prevention structure includes an interior, a terrace, a retaining wall 30, a floor drain 40, and an overflow pipe 50.
[0034] The interior refers to the interior structure of the house, including the interior floor 11.
[0035] The terrace is built on the exterior of the interior, with its base being the terrace floor 21, which transfers its own load and the loads on it to the surrounding beams and columns. A terrace floor 22 is laid on the terrace floor 21; this is the finished terrace floor, with a surface layer of ceramic tiles or stone, and a sloping upper surface. The slope of this surface is close to the interior floor 11, and the bottom of the slope is close to the retaining wall 30.
[0036] A retaining wall 30 is erected on the outside of the terrace, enclosing three sides of the terrace. The retaining wall 30 is constructed of brick or concrete, and its height is higher than the indoor ground level 11.
[0037] The floor drain 40 is located at the bottom of the slope, close to the retaining wall 30, and connected to the drain pipe below it, thereby draining accumulated water into the community's drainage system. The diameter of the drain pipe is 50mm or 75mm. In this embodiment, the diameter of the drain pipe connected to the floor drain 40 is 50mm.
[0038] Additionally, when the area of the terrace is greater than 8m² 2Alternatively, if the length of the terrace is greater than 5m, the number of floor drains 40 shall be at least two. In this embodiment, the length of the terrace is greater than 5m, and the number of floor drains 40 is two. The two floor drains 40 are respectively located at the bottom of the slope and are respectively close to the bottom of the two adjacent retaining walls 30.
[0039] The upper part of the drain 40 is hemispherical and is more than 50mm higher than the upper surface of the terrace floor 22.
[0040] An overflow pipe 50 is installed through the retaining wall 30. The number of overflow pipes 50 corresponds to the number of floor drains 40, and they are positioned directly above the floor drains 30.
[0041] The overflow pipe 50 is a 75mm diameter PVC-U pipe, with one end extending 100-150mm beyond the outer surface of the retaining wall 30, and its center position being 50-100mm lower than the height of the indoor floor 11. In this embodiment, one end of the overflow pipe 50 extends 100mm beyond the outer surface of the retaining wall 30, and its center position is 60mm lower than the height of the indoor floor 11.
[0042] Water accumulated on the terrace can flow from floor drain 40 to the community drainage system; when floor drain 40 cannot meet the drainage needs, water begins to accumulate on the terrace. When the water rises to overflow pipe 50, the water begins to drain from overflow pipe 50. Because overflow pipe 50 is lower than the indoor floor 11, the water flowing out from the overflow pipe avoids the possibility of water seeping into the room.
[0043] The terrace rainwater backflow prevention structure in the above embodiment includes an indoor room, a terrace, a retaining wall, a floor drain, and an overflow pipe. The indoor room has an indoor floor; the terrace is built outside the indoor room and has a terrace floor, the upper surface of which is sloping; the retaining wall surrounds the outside of the terrace; the floor drain is located at the bottom of the slope, close to the retaining wall, and connected to the drainage pipe below it; the overflow pipe is located on the retaining wall, corresponding to the position of the floor drain. The center of the overflow pipe is lower than the indoor floor level. Based on this terrace rainwater backflow prevention structure, by utilizing the sloping structure of the terrace floor and placing the floor drain at the bottom of the slope, rainwater can flow along the slope to the floor drain, reducing the risk of water seepage and leakage from the terrace into the room. In addition, the structure is equipped with an overflow pipe. When the rainfall reaches a certain level and the floor drain cannot keep up, the water on the terrace will reach the overflow pipe and be discharged outwards. The center of the overflow pipe is lower than the indoor floor level, so the overflow pipe can increase the drainage of the terrace and prevent water from seeping into the room.
[0044] In addition, the upper part of the drain is hemispherical and higher than the terrace floor, so the drain will not be covered by leaves or other debris floating in the water, ensuring that drainage is always smooth.
[0045] In addition, when the area of the terrace is greater than 8m2 or the length of the terrace is greater than 5m, there should be at least two floor drains. When there are two floor drains, they should be installed on adjacent sides of the terrace floor, and the number of overflow pipes should correspond to the number of floor drains. As the terrace area increases, the number of floor drains should be appropriately increased to increase the terrace's drainage capacity and prevent water seepage into the room.
[0046] Furthermore, since the center of the overflow pipe in this application is 50-100mm lower than the indoor floor level, even if there is water accumulation in the terrace, the water will be discharged through the overflow pipe before flowing back into the room.
[0047] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A structure for preventing rainwater from flowing back into a terrace, characterized by comprising: The utility model relates to a rainwater backflow prevention structure of a terrace, comprising: an indoor room provided with an indoor floor, a terrace built outside the indoor room and provided with a terrace floor, the upper surface of which is a slope, a retaining wall surrounding the outside of the terrace, a floor drain provided at the slope bottom of the slope and close to the retaining wall, and communicating with a drain pipe below it, an overflow pipe provided on the retaining wall and corresponding to the position of the floor drain, wherein the center position of the overflow pipe is lower than the height of the indoor floor.
2. The rainwater backflow prevention structure of a terrace according to claim 1, wherein: the upper part of the floor drain is hemispherical and higher than the terrace floor.
3. The rainwater backflow prevention structure of a terrace according to claim 1, wherein: the diameter of the drain pipe is 50 mm or 75 mm.
4. The rainwater backflow prevention structure of a terrace according to claim 1, wherein: When the area of the terrace is greater than 8 m 2 or the length of the terrace is greater than 5 m, the number of floor drains is at least two.
5. The rainwater backflow prevention structure of a terrace according to claim 4, wherein: when the number of floor drains is two, the two floor drains are respectively arranged at the adjacent two side edges of the terrace floor.
6. The rainwater backflow prevention structure of a terrace according to claim 4, wherein: the number of overflow pipes corresponds to the number of floor drains.
7. The rainwater backflow prevention structure of a terrace according to claim 1, wherein: the outer end of the overflow pipe extends 100-150 mm beyond the outer surface of the retaining wall.
8. The rainwater backflow prevention structure of a terrace according to claim 1, wherein: the center position of the overflow pipe is 50-100 mm lower than the height of the indoor floor.