Rainwater backflow prevention structure for terrace garden

Abstract

The utility model relates to a rainwater backflow prevention structure for a terrace garden, which is suitable for being overhung out of a house and comprises a terrace, a protective layer, a drainage layer, a geotextile filter layer, a planting layer, a drainage filter layer and a drainage vertical pipe, and the protective layer, the drainage layer, the geotextile filter layer and the planting layer are sequentially stacked on the terrace from bottom to top; a first reverse ridge is arranged on the side, connected with the house, of the terrace, and the height of the first reverse ridge is larger than the sum of the thicknesses of the planting layer, the protective layer, the drainage layer and the geotechnical cloth filtering layer; a second reverse ridge is arranged on the side, away from the first reverse ridge, of the terrace, a protection wall is arranged on the second reverse ridge, and the protection layer, the drainage layer, the geotechnical cloth filtering layer and the planting layer are all located between the protection wall and the first reverse ridge; a drainage port is formed in the terrace, the drainage filtering layer is arranged above the drainage port, the thickness of the drainage filtering layer is larger than that of the drainage layer, and the drainage layer is communicated with the drainage port through the drainage filtering layer; and the bottom end of the drainage port is communicated with the drainage vertical pipe through a pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of terrace gardens, and particularly relates to a rainwater backflow prevention structure for a terrace garden. BACKGROUND

[0002] In architectural landscape design, a terrace garden provides people with a comfortable outdoor leisure space. However, the traditional terrace garden usually does not have effective waterproof measures on the side close to the house; the terrace garden in the prior art can refer to a duplex house with a terrace garden disclosed in CN111173317A, which comprises a house and a balcony. The house is a 2-3 story duplex house, and the balcony is a terrace garden type balcony. The bottom of the balcony is a cast-in-place slab floor, which is lower than the indoor floor of the house. The surface of the cast-in-place slab floor is covered with soil and can be used for planting plants. Although the cast-in-place slab floor in the prior art is lower than the indoor floor of the house, when the surface of the cast-in-place slab floor is covered with soil, the cast-in-place slab floor filled with soil is flush with the indoor floor of the house. When it rains, rainwater easily flows along the cast-in-place slab floor filled with soil to the indoor floor of the house, thereby causing the indoor floor of the house to be damp and moldy, which seriously affects the quality and comfort of the living environment. SUMMARY

[0003] Therefore, the present application provides a rainwater backflow prevention structure for a terrace garden, which is applicable to overhanging outside a house and comprises a terrace, a protection layer, a drainage layer, a geotextile filter layer, a planting layer, a drainage filter layer and a drainage vertical pipe,

[0004] The protection layer, the drainage layer, the geotextile filter layer and the planting layer are sequentially stacked on the terrace from bottom to top. The side of the terrace connected to the house is provided with a first reverse ridge, and the height of the first reverse ridge is higher than the sum of the thicknesses of the planting layer, the protection layer, the drainage layer and the geotextile filter layer.

[0005] The side of the terrace away from the first reverse ridge is provided with a second reverse ridge, and the second reverse ridge is provided with a protective wall. The protection layer, the drainage layer, the geotextile filter layer and the planting layer are located between the second reverse ridge and the first reverse ridge.

[0006] A drainage opening is formed in the terrace, the drainage filter layer is arranged above the drainage opening, the thickness of the drainage filter layer is greater than the thickness of the drainage layer, and the drainage layer is in communication with the drainage opening through the drainage filter layer. The bottom end of the drainage opening is in communication with the drainage vertical pipe through a pipeline.

[0007] In a possible implementation, the height of the first reverse ridge is more than 150 mm higher than the top surface of the planting layer.

[0008] In a possible implementation, the drainage vertical pipe is provided with an inspection opening, and a preset distance is arranged between the inspection opening and the planting layer.

[0009] In a possible implementation, the preset distance is 1000 cm.

[0010] In a possible implementation, the protective layer comprises a waterproof layer and a puncture-proof layer, the waterproof layer and the puncture-proof layer are sequentially stacked from bottom to top, and the first folding edge is arranged around the side of the waterproof layer facing the puncture-proof layer.

[0011] In a possible implementation, the thickness of the drainage layer is 50 mm.

[0012] In a possible implementation, the geotextile filter layer is provided with a second folding edge around the side facing the planting layer, and the height of the second folding edge is the same as the thickness of the planting layer.

[0013] Advantages of the present application

[0014] Compared with the prior art, by arranging the first anti-knob, and the height of the first anti-knob is higher than the sum of the thicknesses of the protective layer, the drainage layer, the geotextile filter layer and the planting layer, when a large amount of precipitation such as heavy rain occurs, the first anti-knob can prevent rainwater from flowing into the indoor along the junction of the balcony and the house, thereby enhancing the waterproof performance of the balcony, avoiding the phenomenon of indoor dampness and mildew caused by rainwater backflow, ensuring the dryness and safety of the house, and improving the quality and comfort of the living environment.

[0015] By arranging the drainage filter layer at the drainage port, the drainage filter layer filters the rainwater in the drainage layer, thereby avoiding the impurities in the drainage layer from flowing directly into the drainage riser pipe and causing the drainage riser pipe to be blocked, reducing the frequency of maintenance and cleaning of the drainage riser pipe, and reducing the maintenance cost.

[0016] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and serve to explain the principles of the present application.

[0018] Figure 1 shows a cross-sectional view of the rainwater backflow prevention structure of the balcony garden of the present application;

[0019] Figure 2 shows a partial enlarged view of Figure 1 .DETAILED DESCRIPTION

[0020] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the accompanying drawings. The same reference numbers in different drawings indicate the same or similar elements. Although various aspects of embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically noted.

[0021] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0022] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0023] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0024] In addition, in order to better illustrate the present application, a large number of specific details are given in the specific embodiments below. Those skilled in the art should understand that the present application can also be implemented without certain specific details. In some examples, methods, means, elements and circuits well known to those skilled in the art are not described in detail, in order to highlight the main idea of the present application.

[0025] The present application provides a rainwater backflow prevention structure for a balcony garden, which is suitable for overhanging out of a house by 500, such as Figure 1 , Figure 2As shown, it comprises: a terrace 100, a protection layer, a drainage layer 220, a geotextile filter layer 230, a planting layer 240, a drainage filter layer 120 and a drainage vertical pipe 300, the protection layer, the drainage layer 220, the geotextile filter layer 230 and the planting layer 240 are sequentially stacked from bottom to top on the terrace 100, the side of the terrace 100 connected with the house 500 is provided with a first anti-knock 410, and the height h1 of the first anti-knock 410 is higher than the sum of the thicknesses of the protection layer, the drainage layer 220, the geotextile filter layer 230 and the planting layer 240; the side of the terrace 100 away from the first anti-knock 410 is provided with a second anti-knock 420, the second anti-knock 420 is provided with a protective wall 130, the protection layer, the drainage layer 220, the geotextile filter layer 230 and the planting layer 240 are all located between the second anti-knock 420 and the first anti-knock 410; the terrace 100 is provided with a drainage port 110, the drainage filter layer 120 is arranged above the drainage port 110, the thickness of the drainage filter layer 120 is greater than the thickness of the drainage layer 220, and the drainage layer 220 is communicated with the drainage port 110 through the drainage filter layer 120, and the bottom end of the drainage port 110 is communicated with the drainage vertical pipe 300 through a pipeline 111.

[0026] It should be noted that the terrace 100 is suitable for providing a stable support base for the garden structure, providing a planting and leisure area for the residents, the first reverse ridge 410 is arranged at the junction of the terrace 100 and the house 500, and the surface of the first reverse ridge 410 is perpendicular to the surface of the terrace 100, the first reverse ridge 410 is suitable for preventing rainwater of the terrace 100 from flowing back into the house 500, when the rainwater accumulates on the terrace 100 and overflows the planting layer 240, the geotextile filter layer 230, the drainage layer 220 and the protection layer, the height h1 of the first reverse ridge 410 is higher than the sum of the thicknesses of the protection layer, the drainage layer 220, the geotextile filter layer 230 and the planting layer 240, which is designed to effectively prevent rainwater from flowing back into the indoor, the protection wall 130 is suitable for preventing people from accidentally falling from the terrace 100, ensuring the safety of the terrace 100 garden, the protection layer is suitable for avoiding the erosion of the terrace 100 by rainwater and the damage of the plant root system, prolonging the service life of the terrace 100; the drainage layer 220 is located above the protection layer, the drainage layer 220 is suitable for collecting and guiding rainwater, and the rainwater permeated by the planting layer 240 is orderly discharged through the drainage port 110, ensuring that the rainwater can be smoothly discharged from the terrace 100; the geotextile filter layer 230 is located above the drainage layer 220, and is suitable for filtering the rainwater permeated into the drainage layer 220, in the rainwater permeation process, the soil of the planting layer 240 will be carried by the rainwater and enter the drainage layer 220, by setting the geotextile filter layer 230, the soil can be effectively prevented from entering the drainage layer 220 with the rainwater, avoiding the phenomenon of blockage of the drainage layer 220; the planting layer 240 is suitable for planting vegetation; the drainage port 110 is communicated with the drainage layer 220 through the drainage filter layer 120, the rainwater in the drainage layer 220 is filtered through the drainage filter layer 120 and then discharged into the drainage vertical pipe 300 through the drainage port 110, the drainage filter layer 120 is suitable for filtering the rainwater in the drainage layer 220, avoiding that the impurities in the drainage layer 220 directly flow into the drainage vertical pipe 300 with the rainwater, causing the drainage vertical pipe 300 to be blocked, reducing the frequency of maintenance and cleaning of the drainage vertical pipe 300, and reducing the maintenance cost; the drainage vertical pipe 300 penetrates the terrace 100, and the length direction of the drainage vertical pipe 300 is perpendicular to the surface of the terrace 100; the drainage vertical pipe 300 which penetrates the terrace 100 vertically can utilize the action of gravity to make the rainwater flow quickly downward in the drainage vertical pipe 300, avoiding the accumulation or retention of rainwater in the drainage vertical pipe 300.

[0027] Compared with the prior art, by arranging the first reverse ridge 410, and the height h1 of the first reverse ridge 410 is higher than the sum of the thicknesses of the protection layer, the drainage layer 220, the geotextile filter layer 230 and the planting layer 240, when a large amount of rainfall occurs, the first reverse ridge 410 can prevent the rainwater from flowing along the joint of the balcony 100 and the house 500 into the indoor, and the waterproof performance of the balcony 100 is enhanced, the indoor damp and mildew caused by the backflow of the rainwater is avoided, the dryness and safety in the house 500 are ensured, and the quality and comfort of the living environment are improved.

[0028] Further, as shown in Figure 1 , the height h1 of the first reverse ridge 410 is more than 150 mm above the top surface of the planting layer 240, that is, Figure 1 , the height h2 of the second reverse ridge 420 is more than 150 mm.

[0029] Further, as shown in Figure 1 , Figure 2 , the drain port 110 is provided with a floor drain, the outer contour of the drain port 110 matches the floor drain, the floor drain is embedded in the drain port 110, one end of the floor drain protrudes from the bottom of the balcony 100 and is communicated with the vertical stand pipe 300 through the pipeline 111, and the drain port 110, the floor drain and the pipeline 111 are matched with each other, so that the rainwater can be smoothly drained into the vertical stand pipe, and the drainage efficiency is improved.

[0030] In a possible implementation, the drainage layer 220 is made of gravel with a particle size of 20-40 mm, and the thickness of the drainage layer 220 is 50 mm.

[0031] In a possible implementation, the drainage filter layer 120 is made of anti-blocking gravel.

[0032] In a possible implementation, as shown in Figure 1 , the vertical stand pipe 300 is provided with an inspection opening 310, and a preset distance is arranged between the inspection opening 310 and the planting layer 240. It should be noted that, by arranging the inspection opening 310, the staff can conveniently check and maintain the vertical stand pipe 300, if the vertical stand pipe 300 is blocked or has other faults, the maintenance personnel can maintain the vertical stand pipe 300 through the inspection opening 310, the maintenance efficiency is improved, and the design that the inspection opening 310 and the planting layer 240 are arranged with a preset distance avoids the phenomenon that the vegetation enters the vertical stand pipe 300 through the inspection opening 310 and causes the vertical stand pipe 300 to be blocked.

[0033] Preferably, the preset distance is 1000 cm.

[0034] In a possible implementation, as shown in Figure 2As shown, the protective layer comprises: a waterproof layer 211, a puncture-proof layer 212; the waterproof layer 211 and the puncture-proof layer 212 are sequentially stacked from bottom to top, and the waterproof layer 211 is provided with a first folded edge 2111 around the side facing the puncture-proof layer 212.

[0035] It should be noted here that the waterproof layer 211 is located on the top surface of the terrace 100, which is suitable for preventing rainwater from continuing to penetrate downward from the drainage layer 220, ensuring that the terrace 100 is not eroded by rainwater, and avoiding the phenomenon of water leakage below the terrace 100; the puncture-proof layer 212 is located above the waterproof layer 211, which is suitable for preventing the plant root system from penetrating the waterproof layer 211, avoiding the phenomenon of water leakage below the terrace 100 caused by rainwater penetrating into the terrace 100, and ensuring the integrity of the waterproof layer 211. By sequentially stacking the waterproof layer 211 and the puncture-proof layer 212, a protective function of waterproofing and puncture-proofing is formed, and through the synergistic effect of the waterproof layer 211 and the puncture-proof layer 212, the terrace 100 is effectively protected from rainwater erosion and plant root damage, ensuring the integrity of the overall structure of the terrace 100.

[0036] Further, as shown in Figure 2 The design of the first folded edge 2111 is suitable for enhancing the waterproof performance of the edge part of the waterproof layer 211. At the junction of the terrace 100 and the second counter 420 or the first counter 410, the first folded edge 2111 closely fits the second counter 420 or the first counter 410, and the gap between the first folded edge 2111 and the protective wall 130 or the first counter 410 is sealed by sealing material, preventing water from penetrating from the gap, and further improving the waterproof reliability of the entire terrace 100 garden.

[0037] Preferably, the height of the first folded edge 2111 is 100mm.

[0038] Further, as shown in Figure 2 The side of the first folded edge 2111 away from the second counter 420 is provided with a third folded edge 2121, which closely fits the first folded edge 2111, further avoiding the plant root system from piercing the first folded edge 2111 and causing damage to the second counter 420, and ensuring the integrity of the overall structure; wherein the third folded edge 2121 is bent from the puncture-proof layer 212.

[0039] In one possible implementation, the waterproof layer 211 is a 1.5mm thick synthetic polymer coating.

[0040] Further, the puncture-proof layer 212 and the third folded edge 2121 are both made of 4mm thick polyester SBS-Ⅱ modified asphalt chemical root puncture waterproofing material.

[0041] In a possible implementation manner, the terrace 100 is provided with a sloping layer (not shown in the figure) between the terrace 100 and the waterproof layer 211, which is suitable for providing a drainage slope for the foundation of the terrace 100 garden, so as to effectively guide the rainwater to flow to the drain 110, thereby avoiding damage to the terrace 100 and the planting layer 240 due to water accumulation on the terrace 100; wherein the sloping layer is an inclined surface of the top surface of the terrace 100, and the drainage slope refers to a preset angle between the inclined surface of the top surface of the terrace 100 and the horizontal plane where the bottom surface of the terrace 100 is located. By setting the preset angle, the rainwater flows quickly to the drain 110 along the slope of the sloping layer under the action of gravity, thereby avoiding the accumulation of rainwater on the surface of the terrace 100 and reducing the risk of leakage of the terrace 100 due to long-term water accumulation, thereby prolonging the service life of the terrace 100.

[0042] Further, the preset angle is in a range of 1°-3°; preferably, the preset angle is 2°.

[0043] Preferably, the sloping layer is made of an anti-permeable reinforced concrete structure after the terrace 100 is sloped.

[0044] In a possible implementation manner, as shown in Figure 2 The second folded edge 231 is provided on the side of the geotextile filter layer 230 facing the planting layer 240. The height of the second folded edge 231 is the same as the thickness of the planting layer 240. It should be noted that the design of the second folded edge 231 increases the contact area and depth of the geotextile filter layer 230 with the planting layer 240. Since the height of the second folded edge 231 is the same as the thickness of the planting layer 240, the geotextile filter layer 230 can more comprehensively wrap the planting layer 240, thereby avoiding the planting layer 240 from being washed into the drainage layer 220 by rainwater, so as to maintain the unobstructed drainage of the drainage layer 220 and reduce the risk of clogging of the drainage layer 220.

[0045] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A rainwater backflow preventing structure for a deck garden, which is adapted to be overhung outside a house, characterized in that, Include: Terrace, protective layer, drainage layer, geotextile filter layer, planting layer, drainage filter layer and drainage riser, The protective layer, the drainage layer, the geotextile filter layer and the planting layer are sequentially stacked from bottom to top on the terrace, the terrace connected with one side of the house is provided with a first anti-knock, and the height of the first anti-knock is higher than the sum of the thicknesses of the planting layer, the protective layer, the drainage layer and the geotextile filter layer; The side of the terrace away from the first anti-knock is provided with a second anti-knock, and the second anti-knock is provided with a protective wall, and the protective layer, the drainage layer, the geotextile filter layer and the planting layer are located between the second anti-knock and the first anti-knock; The terrace is provided with a drainage port, the drainage filter layer is arranged above the drainage port, the thickness of the drainage filter layer is greater than the thickness of the drainage layer, and the drainage layer is communicated with the drainage port through the drainage filter layer; the bottom end of the drainage port is communicated with the drainage riser through a pipeline.

2. The rainwater backflow preventing structure for a deck garden according to claim 1, characterized by The height of the first anti-knock exceeds the top surface of the planting layer by more than 150mm.

3. The rainwater backflow preventing structure for a deck garden according to claim 1, characterized by The drainage riser is provided with an access hole, and a preset distance is provided between the access hole and the planting layer.

4. The rainwater backflow preventing structure for a deck garden according to claim 3, characterized by The preset distance is 1000cm.

5. The rainwater backflow preventing structure for a deck garden according to claim 1, characterized by The protective layer includes a waterproof layer and a puncture-resistant layer. The waterproof layer and the puncture-resistant layer are sequentially stacked from bottom to top, and the waterproof layer is provided with a first folding edge around the side facing the puncture-resistant layer.

6. The rainwater backflow preventing structure for a deck garden according to claim 1, wherein The thickness of the drainage layer is 50mm.

7. The rainwater backflow preventing structure for a deck garden according to claim 5, characterized by The geotextile filter layer is provided with a second folding edge around the side facing the planting layer, and the height of the second folding edge is the same as the thickness of the planting layer.

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