Urban road rainwater drainage system

Abstract

The utility model relates to the technical field of road engineering construction, in particular to an urban road rainwater drainage system, which is characterized in that a curb is fixed on the edge of a road through cement mortar, a well body is positioned in a green open space and is tightly attached to the curb, a well ring is fixed on the upper edge of the well body through cement mortar, a cover groove is arranged at the top of the well ring, and a well cover is arranged in the cover groove. The cross sections of the well body and the well ring are rectangular structures, and the upper edge of the well body is higher than the greening vacant ground; the outer side of the curb is an upstream face, the upstream face is designed to be an inwards-concave arc face, and the inner side of the curb is a vertical face. The vertical face is tightly attached to the well ring and the outer side wall, exposed out of the greening open space ground, of the well body, and the upper edge of the well ring is higher than the upper edge of the curb. Drainage holes penetrating through the upstream face and the vertical face are formed in the curb at intervals; a first water inlet groove is formed in the side, attached to the vertical face, of the well body and corresponds to the drainage hole. And a grate does not need to be arranged on the road surface, so that the integrality and the completeness of the road are improved, and the appearance quality of the road is also greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering construction, in particular to a rainwater drainage system for urban roads. Background Art

[0002] At present, rainwater wells in road projects are usually located on the road close to the outside of the curb or on the green space close to the inside of the curb according to the requirements of the design drawings. First, when the rainwater well is located on the green space close to the inside of the curb, the matching curb is usually provided with a water hole, but there are the following problems in actual application: 1. The curb is easily damaged by vehicle collision. Not only does the curb need to be frequently repaired and replaced, but it also poses a certain threat to the safety of vehicles and pedestrians; 2. The soil in the green space is relatively loose and usually settles, which affects the structural integrity of the rainwater well and affects the drainage function of the rainwater well, resulting in poor drainage. After settlement, the well cover sinks into the soil, which is inconvenient. for later maintenance work; 2. When the rainwater well is positioned on the road close to the outside of the curb, the following problems exist: 1. It affects the appearance quality of the road surface and reduces the integrity and integrity of the road; 2. The top of the rainwater well needs to be covered with cast iron or precast concrete grates, which are easily eroded by wind, frost, rain and snow and age, thereby affecting its own bearing capacity, and may be deformed and broken under the repeated rolling of vehicles, posing certain safety hazards; 3. When the roadbed and subgrade under the road settle unevenly, the road surface around the rainwater well may collapse, causing quality hazards to the road; 4. The road surface around the rainwater well needs to be leveled for the second time after the installation of the grates, and the construction period is relatively long.

[0003] Therefore, based on many years of construction experience and continuous research and exploration, our technical personnel have developed a construction method for rainwater wells and matching curbstones. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an urban road rainwater drainage system that can effectively solve the problem of rainwater well settlement and avoid quality and safety hazards caused by aging and breakage of manhole covers or curbstones.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A rainwater drainage system for urban roads comprises a well body, a well ring, a well cover and a curbstone, wherein the curbstone is fixed to the edge of the road by cement mortar, the well body is located in a green space and is arranged close to the curbstone, the well ring is fixed to the upper edge of the well body by cement mortar, a cover groove is arranged on the top of the well ring, and the well cover is installed in the cover groove, the cross sections of the well body and the well ring are both rectangular structures, and the upper edge of the well body is higher than the ground of the green space; the outer side of the curbstone is a water-facing surface, the water-facing surface is designed as an inwardly concave arc surface, and the inner side is a vertical surface; the vertical surface is closely attached to the well ring and the outer side wall of the well body exposed on the ground of the green space, and the upper edge of the well ring is higher than the upper edge of the curbstone; drainage holes penetrating the water-facing surface and the vertical surface are arranged at intervals on the curbstone; a first water inlet trough is arranged on the side of the well body that is in contact with the vertical surface, corresponding to the drainage hole.

[0007] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0008] There is no need to set grates on the road surface, which improves the integrity and completeness of the road and greatly improves the appearance quality of the road; effectively avoids the safety hazards caused by aging and breakage of the rain grates on the rainwater well; effectively avoids the quality hazard of collapse of the road surface around the rainwater well due to insufficient compaction in traditional practices; the rainwater well is set on the green space outside the curb, the rainwater well and the road surface can be constructed simultaneously, the curb and the well ring and manhole cover can be installed simultaneously, shortening the overall construction period of the project.

[0009] Preferably, a second water inlet groove is provided at the lower edge of one side of the well ring that is in contact with the vertical surface, corresponding to the first water inlet groove, to prevent rainwater from being unable to flow smoothly into the rainwater well through the drainage hole after the rainwater well sinks.

[0010] Preferably, the upper edge of the well body is 200mm-300mm higher than the ground of the green space; a certain amount of settlement is reserved to prevent the rainwater well from sinking into the green ground after sinking. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the urban road rainwater drainage system in the embodiment of the utility model;

[0012] Figure 2 It is a side view structural diagram of the urban road rainwater drainage system in the embodiment of the utility model;

[0013] Figure 3 yes Figure 1 Schematic diagram of the cross-section test structure at AA in the middle;

[0014] Figure 4 It is a structural schematic diagram of the first water inlet trough and the second water inlet trough in an embodiment of the utility model;

[0015] Figure 5 It is another structural schematic diagram of the first water inlet trough and the second water inlet trough in the embodiment of the utility model.

[0016] Explanation of the accompanying reference numerals: 1. curbstone; 2. drainage hole; 3. manhole ring; 301. second water inlet trough; 4. manhole cover; 5. manhole body; 501. first water inlet trough; 6. road; 7. green space. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with specific embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0018] like Figures 1 to 3 As shown, this embodiment discloses an urban road rainwater drainage system, including a well body 5, a well ring 3, a well cover 4 and a curb 1. The curb 1 is fixed to the edge of the road 6 by cement mortar. The well body 5 is located in the green space 7 and is set close to the curb 1. The well ring 3 is fixed to the upper edge of the well body 5 by cement mortar. A cover groove is set on the top of the well ring 3, and the well cover 4 is installed in the cover groove. The cross-sections of the well body 5 and the well ring 3 are both rectangular structures. The upper edge of the well body 5 is higher than the green space 7. The outer side of the curbstone 1 is the water-facing surface, which is designed to be an inwardly concave arc surface to prevent collision; the inner side of the curbstone 1 is a vertical surface; the vertical surface is tightly attached to the outer wall of the well ring 3 and the well body 5 exposed on the ground of the green space 7, and the upper edge of the well ring 3 is higher than the upper edge of the curbstone 1; drainage holes 2 that pass through the water-facing surface and the vertical surface are arranged at intervals on the curbstone 1; a first water inlet trough 501 is arranged on one side of the well body 5 that is attached to the vertical surface and corresponds to the drainage hole 2.

[0019] The curbstone 1 is processed before leaving the factory and can be transported to the site for construction; the drainage hole 2 is 80-90mm wide and half the height of the curbstone 1; the gap between the drainage hole 2 is equal to the width of the drainage hole 2; in this embodiment, the well body 5 of the rainwater well is 900mm long, 600mm wide and 1000mm high; the well ring 3 is 900mm long, 600mm wide and 160mm high; the well cover 4 is 720mm long, 420mm wide and 10mm thick; the drainage hole 2 is 80mm wide and 80mm high, and the gap between the drainage hole 2 is 80mm; the curbstone 1 is 900mm long, 100mm wide and 160mm high; when processed in the factory, the drainage hole 2 at the end is 80-90mm away from the corresponding end of the curbstone 1.

[0020] Furthermore, a second water inlet groove 301 is provided on the lower edge of one side of the well ring 3 that is in contact with the vertical surface, corresponding to the first water inlet groove 501; the drainage hole 2 is located at the bottom of the curb 1, and when the curb 1 is installed, the lower edge of the curb 1 is flush with the lower edge of the first water inlet groove 501; specifically, Figure 4, the width and height of the first water inlet groove 501 and the second water inlet groove 301 can be designed to be the same as the width and height of the drainage hole 2, that is, the first water inlet groove 501 and the second water inlet groove 301 together form a water hole with the same width as the drainage hole 2 and twice the height of the drainage hole 2; in the later use process, even if the rainwater well sinks, the drainage hole 2 can be opposite to the water hole, so that rainwater flows into the rainwater well through the drainage hole 2, the first water inlet groove 501, and the second water inlet groove 301; Figure 5 The first water inlet groove 501 and the second water inlet groove 301 can also be set to be continuous, with a length not less than the distance from the first drainage hole 2 to the last drainage hole 2. The first water inlet groove 501 and the second water inlet groove 301 together form a long water hole with a height twice that of the drainage hole 2, avoiding difficulty in aligning the drainage hole 2 with the first water inlet groove 501 during installation.

[0021] Furthermore, the upper edge of the well body 5 is 200mm-300mm higher than the ground of the green space 7; a certain amount of settlement is reserved to prevent the rainwater well from sinking into the green ground after sinking and soil backflow.

[0022] The utility model improves the integrity and completeness of the road 6, and greatly improves the appearance quality of the road 6; it effectively avoids the quality risk of collapse of the road surface around the rainwater well due to insufficient compaction in the traditional practice; the rainwater well is set on the green space 7 outside the curb 1, the rainwater well and the road 6 pavement can be constructed simultaneously, the curb 1 and the well ring 3 and the well cover 4 can be installed simultaneously, shortening the overall construction period of the project; at the same time, a certain amount of rainwater well settlement is reserved for the rainwater well settlement, avoiding poor drainage after the rainwater well settlement.

[0023] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A rainwater drainage system for an urban road, comprising a well body (5), a well ring (3), a well cover (4) and a curb (1), wherein the curb (1) is fixed to the edge of a road (6) by cement mortar, the well body (5) is located in a green space (7) and is arranged close to the curb (1), the well ring (3) is fixed to the upper edge of the well body (5) by cement mortar, a cover groove is arranged on the top of the well ring (3), and the well cover (4) is installed in the cover groove, characterized in that: The cross-sections of the well body (5) and the well ring (3) are both rectangular structures, and the upper edge of the well body (5) is higher than the ground of the green space (7); The outer side of the curb (1) is a water-facing surface, which is designed to be an inwardly concave arc surface, and the inner side is a vertical surface; the vertical surface is closely attached to the outer wall of the well ring (3) and the well body (5) exposed on the ground of the green space (7), and the upper edge of the well ring (3) is higher than the upper edge of the curb (1); Drain holes (2) penetrating the water-facing surface and the vertical surface are arranged at intervals on the curb (1); a first water inlet groove (501) is arranged on one side of the well body (5) that is in contact with the vertical surface and corresponds to the drainage hole (2).

2. The urban road rainwater drainage system according to claim 1, characterized in that: A second water inlet groove (301) is provided at a lower edge of one side of the well ring (3) that is in contact with the vertical surface and corresponds to the first water inlet groove (501).

3. The urban road rainwater drainage system according to claim 1, characterized in that: The upper edge of the well body (5) is 200 mm to 300 mm higher than the ground of the green space (7).

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