Road non-motor lane rainwater inlet drainage device

Abstract

This invention discloses a storm drain device for non-motorized vehicle lanes, relating to the field of municipal engineering technology. It aims to solve the problems of limited drainage area, easy blockage by lightweight debris, high maintenance and cleaning difficulties, and high maintenance costs associated with commonly used combined storm drains in existing technologies. The technical solution adopted is that the storm drain grate is connected to the storm drain well. The storm drain grate includes a main drainage grate, an auxiliary drainage grate, and a sludge removal grate. The main drainage grate, auxiliary drainage grate, and sludge removal grate correspond to the positions of the non-motorized vehicle lane surface, the curb, and the sidewalk, respectively. Through a multi-outlet water collection design, the total drainage area of ​​a single set of storm drains is significantly expanded, accelerating the stormwater runoff speed on the non-motorized vehicle lane surface and reducing water accumulation at the source. Furthermore, the height of the auxiliary drainage outlet matches the curb, and the spacing is consistent with the main drainage outlet, complying with municipal road construction specifications and requiring no changes to the original road foundation structure.

Description

Technical Field

[0001] This invention relates to the field of municipal engineering technology, specifically to a rainwater inlet drainage device for non-motorized vehicle lanes. Background Technology

[0002] The current mainstream design for non-motorized vehicle lanes on urban roads uses a combined double-grate storm drain system. Its core structure consists of a single main drainage outlet on the road surface combined with a storm drain main ditch. The grate has a vertical hole design and lacks a rainwater and debris separation structure, auxiliary water collection, and dedicated dredging structure. The specific technical parameters and defects are as follows:

[0003] (1) Drainage structure: Only the main road surface drainage outlet is provided, the effective drainage area of ​​the rainwater outlet is limited, there is no side and sidewalk water collection design, the water collection speed is slow during peak rainfall, and it is easy to cause water accumulation on non-motorized vehicle roads;

[0004] (2) Grate design: The rain grate has vertical round / square holes. The holes are easily blocked by lightweight debris such as fallen leaves and plastic bags. The debris will directly enter the main gutter of the rainwater well with the rainwater, which will easily cause blockage of the main gutter and downstream drainage pipes.

[0005] (3) Internal structure: There is no rainwater and debris separation component in the rainwater well. Rainwater and debris are mixed and piled up. There is no special debris storage layer. The rainwater grate needs to be lifted as a whole when cleaning, which makes the operation difficult.

[0006] (4) Operation and maintenance design: There is no dedicated sludge removal port. Sludge removal requires the use of large tools to disassemble the main drainage grate, resulting in low maintenance efficiency and high labor and equipment costs.

[0007] Therefore, there is an urgent need to develop a storm drain device that is highly adaptable, has high drainage efficiency, excellent anti-clogging performance, and is easy to operate and maintain. Ultimately, this will improve the storm drain's discharge and anti-clogging capabilities, reduce the workload and difficulty of maintaining municipal drainage facilities, ensure the safety of non-motorized vehicle lanes during rainy weather, and improve the level of urban flood control. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the existing defects and provide a drainage device for rainwater inlets of non-motorized vehicle lanes, which can effectively solve the problems in the background art.

[0009] To achieve the above objectives, the present invention discloses a rainwater inlet drainage device for a non-motorized vehicle lane. The technical solution adopted includes a non-motorized vehicle lane surface, a pedestrian walkway surface, and a curb stone. There are steps between the non-motorized vehicle lane surface and the pedestrian walkway surface, and the curb stone is provided at the steps.

[0010] It also includes storm drain grates and storm drain wells. The storm drain grates are connected to the storm drain wells. The storm drain grates include a main drainage outlet storm drain grate, an auxiliary drainage outlet storm drain grate, and a dredging outlet storm drain grate. The main drainage outlet storm drain grate, the auxiliary drainage outlet storm drain grate, and the dredging outlet storm drain grate correspond to the positions of the non-motorized vehicle road surface, the curb, and the sidewalk surface, respectively.

[0011] The multi-outlet water collection design significantly expands the total drainage area of ​​a single set of rainwater inlets, accelerates the rainwater runoff speed on non-motorized vehicle road surfaces, reduces water accumulation at the source, and the height of the auxiliary drainage outlets matches the curbstone and the spacing is consistent with the main drainage outlets, which complies with municipal road construction specifications and does not require changes to the original road foundation structure.

[0012] Curbstone auxiliary drainage outlet: single grid width 250mm, height matches the curbstone, range 150-250mm, spacing between adjacent auxiliary drainage outlets is consistent with main drainage outlet; matching grid-shaped rain grate - auxiliary drainage outlet rain grate, total width 810mm, thickness 20mm. Taking a curbstone height of 150mm as an example, the grate specifications are height × width × thickness = 149 × 810 × 20mm, hole size length × width = 78 × 80mm, grid spacing 20mm, and the inner side of the auxiliary drainage outlet is directly connected to the main rainwater well ditch;

[0013] Sidewalk drainage outlet (sludge removal outlet): Matching sludge removal outlet rainwater grate, with specifications of height × width × thickness = 250 × 810 × 25 mm, hole size of length × width = 210 × 35 mm, and grating spacing of 20 mm. It is directly installed above the rainwater well interlayer, and has the dual functions of water collection and sludge removal.

[0014] The rainwater well is equipped with a partition panel that divides the interior of the rainwater well into a rainwater well interlayer and a main rainwater well channel. The main rainwater well channel is connected to the urban rainwater treatment system through a drainage pipe.

[0015] As a preferred technical solution of the present invention, a guide plate is provided below the main drainage outlet rain grate. The guide plate is a folded plate, and its end corresponds to the position of the rainwater well interlayer, so as to guide the rainwater entering the rainwater well through the main drainage outlet rain grate to the rainwater well interlayer.

[0016] A flow guide plate is installed below the main drainage outlet, and a partition plate is added inside the rainwater well and a special debris interlayer is constructed. The rainwater and lightweight debris are separated at the source through the dual structure of "flow guide + barrier".

[0017] Stainless steel guide plate: 5mm thick, 690mm horizontal length, 415mm vertical height; it is fixed to the main drainage outlet rain grate wall with bolts, and is set in a 120°-160° zigzag line towards the rain grate interlayer. The bend point of the zigzag line is the midpoint of the guide plate length. The bend angle can be adapted according to the local rainfall intensity to improve the accuracy of the guide. At the same time, the vertical distance from the lowest point of the guide plate to the main drainage outlet rain grate is not less than the width of the main drainage outlet rain grate.

[0018] As a preferred embodiment of the present invention, the partition plate is provided with multiple sets of sieve holes for filtering impurities in rainwater;

[0019] Galvanized steel or ductile iron partition plate: 10mm thick, 600mm in total height, 100mm inserted into the base, 1450mm wide. It serves as a partition between the rainwater well interlayer and the main rainwater well trench. The plate is cut into a grid shape with holes measuring 350mm x 35mm and a grid spacing of 20mm. The partition plate is tightly fitted to the well wall and fixed with cement mortar. The specifications of the rainwater well interlayer match those of the partition plate.

[0020] As a preferred embodiment of the present invention, the dredging outlet rainwater grate is installed on the sidewalk surface via a base, and one end of the dredging outlet rainwater grate is rotatably connected to the base.

[0021] As a preferred embodiment of the present invention, the sludge removal outlet rainwater grate includes a filter section and a buckle. The buckle is rotatably connected to the base via a rotating shaft, and the sludge removal outlet rainwater grate is located above the rainwater well interlayer.

[0022] As a preferred embodiment of the present invention, the base and the auxiliary drain grate are integrally formed, and the auxiliary drain grate is located on the side away from the rotating shaft.

[0023] As a preferred embodiment of the present invention, the base is further provided with a raised edge, which is used to limit the sludge drain grate and prevent it from flipping downwards; the outer edge of the base is limited to the sidewalk surface by anchor bolts.

[0024] As a preferred technical solution of the present invention, the main drainage outlet rain grate is provided with a through-hole, and the through-hole is provided in multiple sets and is inclined along the water flow direction;

[0025] The vertical holes of traditional rain grate are optimized into oblique elongated holes at a 25° angle in the direction of water flow. The length of the oblique elongated holes is 130-680mm, the vertical width is 20mm, and the horizontal spacing between the holes is 47mm. While optimizing the hole shape, the total area of ​​the grate holes is kept consistent with the original design. The combined effect of water flow thrust and gravity guides debris to slide automatically to the edge of the grate, reducing the probability of the holes getting stuck and blocked.

[0026] Compared with the prior art, the beneficial effects of the present invention are: the present invention can effectively alleviate the problem of water accumulation on non-motorized vehicle roads during rainy days, ensure the safety of pedestrians and non-motorized vehicles, and at the same time provide strong technical support for improving the level of urban flood control, improving the refined management of municipal facilities, creating a safe and comfortable urban slow traffic environment, and helping to optimize and upgrade the urban drainage system;

[0027] By adding drainage outlets on both the curbside and the sidewalk, a triple water collection structure of "well opening + side opening + sidewalk opening" is formed, which effectively expands the total drainage area of ​​the storm drain, greatly improves the water collection and discharge capacity under peak rainfall conditions, accelerates the receding of water on non-motorized vehicle roads, and reduces the problem of water accumulation on roads from the source.

[0028] The combination design of the baffle and the partition plate achieves the separation of rainwater and light debris at the source, while the slanted long hole grate reduces the retention and stagnation of debris at the holes. The dual measures fundamentally reduce the probability of blockage in the main rainwater inlet and downstream drainage pipes, ensuring the smooth flow of the drainage system.

[0029] The storm drain grate with dredging outlet adopts a snap-fit, flip-up structure with a dedicated base, which can be quickly flipped and disassembled without the need for large tools. Maintenance personnel can directly clean debris in the interlayer from the dredging outlet, avoiding the cumbersome operation of lifting the entire storm drain grate as in traditional methods, greatly reducing the workload and difficulty of maintenance, and improving the efficiency of maintenance operations.

[0030] All optimized structures are modified based on traditional combined storm drains, without requiring significant changes to the original drainage structure and manufacturer's molds. The materials used, such as stainless steel, galvanized steel, ductile iron, and cement mortar, as well as the masonry and bolt fixing processes, are all commonly used in municipal engineering. They are suitable for storm drain design in newly built urban roads and can also be directly adapted to the upgrading and renovation of storm drains in non-motorized vehicle lanes of existing roads. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 Cross-section of the present invention Figure 1 ;

[0033] Figure 3 Cross-section of the present invention Figure 2 ;

[0034] Figure 4 This is an exploded view of the base of the present invention;

[0035] Figure 5 This is a schematic diagram of the dredging process according to the present invention;

[0036] Figure 6 This is a schematic diagram of the main drainage outlet rain grate of the present invention.

[0037] In the diagram: 1. Main drainage outlet rain grate; 2. Auxiliary drainage outlet rain grate; 3. Dredging outlet rain grate; 4. Guide plate; 5. Divider plate; 6. Drain pipe; 7. Rainwater well interlayer; 8. Rainwater well main ditch; 9. Base; 10. Non-motorized vehicle road surface; 11. Pedestrian road surface; 12. Curb stone; 31. Buckle; 91. Protruding edge; 92. Rotating shaft. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1

[0040] like Figures 1 to 6 As shown, the present invention discloses a rainwater inlet drainage device for non-motorized vehicle lanes, the technical solution of which includes a road surface structure, a rainwater grate assembly and a rainwater well structure;

[0041] The road structure includes a non-motorized vehicle road surface 10, a pedestrian road surface 11, and a curb 12 located between the two; there is a height difference between the non-motorized vehicle road surface 10 and the pedestrian road surface 11, forming a stepped structure.

[0042] The storm drain grate assembly covers the storm drain well, including...

[0043] Main drainage outlet rain grate 1: Located on the non-motorized vehicle road surface 10, used to receive the runoff from the main road surface; the main drainage outlet rain grate 1 has through long holes, and there are multiple sets of long holes, which are inclined along the direction of water flow to reduce the retention of debris.

[0044] Auxiliary drainage outlet rain grate 2: Located at curb 12, used to collect water from the side of the curb;

[0045] Dredging outlet storm drain 3: Located on the sidewalk pavement 11, it is mainly used for dredging operations and also has a water collection function.

[0046] The storm drain is located beneath the road surface structure, and its interior is divided into two independent spaces by a partition panel 5:

[0047] Rainwater well interlayer 7: Used for temporary storage and separation of debris in rainwater;

[0048] Main rainwater drain 8: Used for discharging purified rainwater;

[0049] The bottom of the main drainage ditch 8 is connected to a drainage pipe 6, which is used to discharge rainwater into the urban rainwater treatment system; the partition plate 5 has multiple sets of screen holes, which allow water to flow through but prevent larger debris from entering the main drainage ditch.

[0050] Flow guiding structure:

[0051] A guide plate 4 is installed directly below the main drain grate 1. The guide plate 4 adopts a folded plate structure, and its end extends to the top of the rainwater well interlayer 7. When rainwater enters through the main drain, the guide plate 4 guides it directly into the rainwater well interlayer 7, and uses the inertia of the water flow to achieve preliminary separation of rainwater and debris.

[0052] Dredging outlet structure:

[0053] The dredging outlet storm drain grate 3 is installed on the sidewalk pavement 11 via the base 9;

[0054] One end of the sludge drain grate 3 is rotatably connected to the base 9 via a pivot 92; the sludge drain grate 3 is equipped with a buckle 31, which cooperates with the pivot 92 on the base 9 to allow the grate to be flipped toward the sidewalk for easy sludge removal;

[0055] The base 9 has a raised edge 91 to limit the angle at which the grate flips downward. The base 9 and the other end of the sludge drain grate 3 are equipped with a locking buckle to prevent unauthorized personnel from flipping the sludge drain grate 3. The outer edge of the base 9 is fixed to the sidewalk surface by anchor bolts.

[0056] The base 9 and the auxiliary drain grate 2 are integrally formed, and the auxiliary drain grate 2 is located on the side away from the rotating shaft 92, which ensures the overall strength and stability.

[0057] Working principle of the invention:

[0058] During rainfall, rainwater enters the rainwater well through the main drainage outlet 1, the auxiliary drainage outlet 2, and the sludge removal outlet 3. The rainwater from the main drainage outlet impacts the guide plate 4 and is directed to the rainwater well interlayer 7. The rainwater settles in the interlayer 7, impurities are trapped, and clean water flows into the main ditch 8 of the rainwater well through the screen holes on the partition plate 5, and is finally discharged through the drainage pipe 6.

[0059] When dredging is needed, maintenance personnel only need to open the dredging outlet rain grate 3 on the sidewalk to directly clean the debris in the rainwater well interlayer 7 without moving the heavy main drainage grate.

[0060] The mechanical connection involved in this invention is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It is common knowledge.

[0061] Components not described in detail in this article are existing technologies.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rainwater drainage device for a non-motorized vehicle lane, comprising a non-motorized vehicle lane surface (10), a pedestrian walkway surface (11), and a curbstone (12), wherein there are steps between the non-motorized vehicle lane surface (10) and the pedestrian walkway surface (11), and the curbstone (12) is provided at the steps. Its features are: It also includes rain grate and rain well, the rain grate is connected to the rain well, the rain grate includes a main drainage outlet rain grate (1), an auxiliary drainage outlet rain grate (2) and a dredging outlet rain grate (3), the main drainage outlet rain grate (1), the auxiliary drainage outlet rain grate (2) and the dredging outlet rain grate (3) are respectively located opposite to the non-motorized vehicle road surface (10), the curb stone (12) and the sidewalk surface (11); The rainwater well is equipped with a partition panel (5), which divides the interior of the rainwater well into a rainwater well interlayer (7) and a rainwater well main ditch (8). The rainwater well main ditch (8) is connected to the urban rainwater treatment system through a drainage pipe (6).

2. The drainage device for rainwater inlets on non-motorized vehicle lanes according to claim 1, characterized in that: Below the main drain grate (1), there is also a guide plate (4). The guide plate (4) is a folded plate, and its end is corresponding to the position of the rainwater well interlayer (7). It guides the rainwater that enters the rainwater well through the main drain grate (1) into the rainwater well interlayer (7).

3. A drainage device for rainwater inlets on non-motorized vehicle lanes according to claim 1 or 2, characterized in that: The partition plate (5) has multiple sets of sieve holes for filtering impurities in rainwater.

4. A drainage device for rainwater inlets on non-motorized vehicle lanes according to claim 1, characterized in that: The dredging outlet rainwater grate (3) is installed on the sidewalk road surface (11) via the base (9), and one end of the dredging outlet rainwater grate (3) is rotatably connected to the base (9).

5. A drainage device for rainwater inlets on non-motorized vehicle lanes according to claim 4, characterized in that: The sludge removal outlet rainwater grate (3) includes a filter section and a buckle (31). The buckle (31) is rotatably connected to the base (9) via a rotating shaft (92), and the sludge removal outlet rainwater grate (3) is located above the rainwater well interlayer (7).

6. A drainage device for rainwater inlets on non-motorized vehicle lanes according to claim 5, characterized in that: The base (9) and the auxiliary drain grate (2) are integrally formed, and the auxiliary drain grate (2) is located on the side away from the rotating shaft (92).

7. A drainage device for rainwater inlets on non-motorized vehicle lanes according to claim 4, characterized in that: The base (9) is also provided with a protruding edge (91), which is used to limit the sludge drain grate (3) to prevent it from flipping downwards; the outer edge of the base (9) is limited to the sidewalk surface (11) by anchor bolts.

8. A drainage device for rainwater inlets in non-motorized vehicle lanes according to claim 1, characterized in that: The main drainage outlet rain grate (1) has a through-hole, and there are multiple sets of the through-hole, which are inclined along the direction of water flow.

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