A drainage network for municipal maintenance of bridges

Abstract

The utility model relates to municipal bridge engineering technical field discloses a drainage pipe network for municipal maintenance bridge, including bridge deck, the support column is fixed below bridge deck, and the bridge deck and sidewalk junction are provided with the drainage groove, the cover plate that the groove hole is set up to the surface is covered to the top of drainage groove, the hole is seted up to the bottom of drainage groove, the filter screen is arranged to the top of hole, the filter screen is fixedly connected with drainage groove through bolt, and the fine tube is connected with the thick pipe in the side of drainage groove, and the thick pipe is connected with the side pipe in the tail end of fine tube.

Description

Technical Field

[0001] This utility model relates to the field of municipal bridge engineering technology, and in particular to a drainage pipe network for municipal bridge maintenance. Background Technology

[0002] As an important component of urban transportation networks, municipal bridges face various forms of erosion from the natural environment during long-term use. Rainwater, in particular, causes significant damage to bridge structures. To ensure traffic safety and extend the lifespan of bridges, drainage systems are installed to promptly drain rainwater from the bridge surface. Existing municipal bridge drainage systems often employ the direct burial of drainage pipes, allowing rainwater to flow directly into connected pipes through openings in the bridge surface. However, in practice, rainwater carries large amounts of debris such as leaves, silt, and household waste. If this debris is not effectively intercepted and instead enters the deep, complex pipe network with its narrow diameter, it can cause siltation and blockages within the pipes. The existing drainage network structure lacks convenient inspection and cleaning interfaces. Once internal blockages occur, municipal maintenance personnel find it difficult to penetrate deep into the pipes for cleaning, resulting in challenging and costly dredging and maintenance work. Furthermore, drainage efficiency decreases significantly over time, potentially leading to severe flooding on the bridge and disrupting traffic.

[0003] Therefore, this utility model proposes a drainage pipe network for municipal bridge maintenance to address the shortcomings of existing technologies. Utility Model Content

[0004] In view of the problems in the existing technology, such as the easy accumulation and blockage of deep pipe networks due to the entry of leaves and debris in the drainage system of municipal bridges, and the lack of convenient inspection and maintenance interfaces in the existing structure, which makes subsequent cleaning and maintenance difficult, this utility model aims to provide a drainage pipe network for municipal bridge maintenance with an improved structure that can effectively solve the above problems.

[0005] This utility model provides a drainage pipe network for municipal bridge maintenance, including: bridge deck, support columns, sidewalk, guardrail, drainage ditch, cover plate, slot, hole, filter screen, bolt, thin pipe, thick pipe, side pipe, outlet one and outlet two.

[0006] The bridge deck and the pedestrian walkway are connected by a drainage ditch. The top of the drainage ditch is covered with a cover plate with slots on its surface. The bottom of the drainage ditch has holes with a filter screen at the top of the holes. The filter screen is fixed with bolts and has a mesh structure that can intercept debris and allow water to flow through.

[0007] Furthermore, a thin pipe is fixedly connected to one side of the drainage trough, and a thick pipe is connected to the end of the thin pipe away from the drainage trough. The two ends of the thick pipe are provided with outlets two. A side pipe is fixedly connected to the other side of the drainage trough, and an outlet one is provided at the end of the side pipe. The thin pipe and the side pipe are respectively connected to the inside of the drainage trough. Through the cooperation of the above structures, the source of debris is intercepted and the dual-channel coordinated diversion drainage is achieved.

[0008] Preferably, the slots are evenly distributed along the surface of the cover plate and extend through the thickness of the cover plate. The cover plate and the top of the drainage channel are interlocked to ensure that rainwater penetrates evenly while keeping the road surface flat.

[0009] Preferably, the bottom wall of the drainage channel is recessed to form an installation groove, the filter screen is embedded in the installation groove and covers the holes, and the bolt passes through the edge of the filter screen and is threaded to the bottom wall of the drainage channel, thereby ensuring that the filter screen is installed firmly and is easy to disassemble and clean later.

[0010] Preferably, the thin tube is perpendicular to the length direction of the drainage channel, the bottom end of the thin tube is connected to the top wall of the thick tube, and the diameter of the thick tube is larger than that of the thin tube, so as to facilitate the collection of water flow from multiple thin tubes and prevent backflow.

[0011] Preferably, there are multiple thin tubes, which are arranged at intervals along the length of the drainage channel, and all the thin tubes converge into the thick tube, thereby expanding the drainage coverage and improving the overall drainage efficiency.

[0012] Preferably, the side pipe and the thin pipe are located on opposite sides of the drainage trough, and there are two side pipes, which are located at both ends of one side of the drainage trough.

[0013] Preferably, both outlet one and outlet two are connected to the external environment, with outlet one facing the lower side of the bridge deck, which can directly discharge rainwater to an area away from the bridge structure.

[0014] Preferably, the thick pipe is arranged parallel to the drainage channel, located below the drainage channel, and fixed to the bottom of the bridge deck by connectors to ensure the structural stability of the main pipeline under full load.

[0015] Preferably, the upper surface of the bridge deck has a preset slope, the drainage channel is located at the lowest point of the slope, the sidewalk is higher than the drainage channel, and the rainwater is naturally collected into the drainage channel by gravity.

[0016] Preferably, the top of the support column is equipped with a crossbeam structure, which supports both the bridge deck and the thick pipe, providing a stable load-bearing foundation for the entire drainage network.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem in the prior art that bridge drainage pipe networks are prone to deep blockage due to the accumulation of debris such as leaves and gravel, and the subsequent cleaning and maintenance are extremely difficult. It effectively intercepts debris from entering the deep part of the pipe at the source, reduces the risk of pipe network blockage, and municipal maintenance personnel can quickly remove the filter screen for cleaning by simply loosening the bolts. This significantly improves the convenience and efficiency of municipal maintenance.

[0018] 2. This utility model, by adopting a dual-channel coordinated drainage design that combines multiple thin pipes converging into a thick pipe for centralized discharge with independent side pipes for direct discharge, solves the problem of insufficient drainage or even serious water accumulation on the bridge deck due to the limited drainage capacity of a single pipe in the event of severe weather such as heavy rain, which seriously affects traffic safety. It achieves the diversion and rapid drainage of rainwater, significantly improves the instantaneous flow handling capacity of the drainage system, and ensures the safety and dryness of the bridge deck under various rain conditions.

[0019] 3. This utility model solves the problem in the prior art where the rainwater collection path on the bridge deck is unclear, which easily leads to rainwater overflowing on the road surface. It solves the problem by opening a drainage channel at the low-lying position at the junction of the bridge deck and the sidewalk and using a cover plate with uniformly perforated surface. It achieves the effect of efficiently collecting rainwater from the road surface into the drainage channel by using gravity. At the same time, the cover plate can isolate larger foreign objects and keep the road surface flat. Together with the supporting structure below, it ensures the structural stability and safety of the entire drainage pipe network when it is running at full load. Attached Figure Description

[0020] Figure 1 This is a perspective view of a drainage pipe network for municipal bridge maintenance proposed in this utility model. Figure 2 This is a schematic diagram of the structure of a support column in a drainage pipe network for municipal bridge maintenance proposed in this utility model; Figure 3 This is a cross-sectional view of a drainage ditch in a drainage network for municipal bridge maintenance proposed in this utility model. Figure 4 This is a cross-sectional view of a thick pipe in a drainage network for municipal bridge maintenance proposed in this utility model. Figure 5 This is a split view of a cover plate in a drainage pipe network for municipal bridge maintenance proposed in this utility model.

[0021] Legend: 1. Bridge deck; 2. Support columns; 3. Sidewalk; 4. Guardrail; 5. Drainage channel; 6. Cover plate; 7. Slot; 8. Hole; 9. Filter screen; 10. Bolt; 11. Thin pipe; 12. Thick pipe; 13. Side pipe; 14. Outlet 1; 15. Outlet 2. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Example: Refer to Figures 1 to 5 This utility model provides a drainage pipe network for municipal bridge maintenance, which aims to solve the problems of low drainage efficiency of existing municipal bridge drainage systems when facing heavy rain, easy blockage of drainage outlets by leaves and debris, and difficulty in cleaning and maintaining underground pipe networks.

[0024] Reference Figure 1 and Figure 2 As shown, a drainage pipe network for municipal bridge maintenance includes a bridge deck 1, which serves as the installation foundation and load-bearing body of the entire drainage pipe network. Support columns 2 are fixedly connected below the bridge deck 1, providing stable load-bearing support for the bridge deck 1 and the overall drainage pipe network structure. A crossbeam structure is provided at the top of the support column 2, which also supports the bridge deck 1 and the pipeline system below, ensuring the stability of the overall structure. The upper surface of the bridge deck 1 has an arched structure that is high in the middle and low on both sides, or has a preset slope, which guides rainwater to flow naturally to both sides by gravity. Sidewalks 3 are fixedly connected to both sides of the bridge deck 1 for pedestrians to pass through. The sidewalks 3 are higher than the drainage ditch 5. A guardrail 4 is fixedly connected to the side of the sidewalk 3 away from the bridge deck 1, which serves as a safety protection to prevent people or objects from falling.

[0025] A drainage ditch 5 is provided at the junction of the bridge deck 1 and the pedestrian walkway 3. The drainage ditch 5 is located at the lowest point of the slope of the bridge deck 1 and is used to collect rainwater flowing down from the bridge deck 1. The top of the drainage ditch 5 is covered with a cover plate 6, which is snapped together with the top of the drainage ditch 5. The surface of the cover plate 6 has slots 7, which are evenly distributed along the surface of the cover plate 6 and penetrate through the thickness of the cover plate 6. Rainwater seeps into the interior of the drainage ditch 5 through the slots 7. At the same time, the cover plate 6 can keep the road surface flat and prevent large foreign objects from falling directly in. The bottom of the drainage ditch 5 has holes 8, which serve as the necessary channel for water to enter the pipe network below.

[0026] To prevent pipe blockage and facilitate later maintenance, a filter screen 9 is installed at the top of the hole 8. The bottom wall of the drainage trough 5 is recessed to form an installation groove. The filter screen 9 is embedded in the installation groove and completely covers the hole 8. The filter screen 9 is used to intercept debris such as leaves and gravel, preventing debris from entering the sewer pipe and causing blockage. The filter screen 9 is fixed by bolts 10. The bolts 10 pass through the edge of the filter screen 9 and are threaded to the bottom wall of the drainage trough 5. The bolts 10 are distributed circumferentially along the edge of the filter screen 9. When it is necessary to clean debris, the filter screen 9 can be removed simply by loosening the bolts 10, which greatly facilitates municipal maintenance operations.

[0027] To ensure the effective guidance and discharge of filtered rainwater, a thin pipe 11 is connected to one side wall of the drainage trough 5. The thin pipe 11 serves as a vertical channel connecting the drainage trough 5 to the lower-level pipe network. Multiple thin pipes 11 are arranged at intervals along the length of the drainage trough 5. Each thin pipe 11 is vertically connected to the side wall of the drainage trough 5 to ensure that rainwater can be quickly and evenly distributed downwards, avoiding excessive pressure at a single point of drainage that could lead to local overflow. The thin pipe 11 mainly undertakes the task of transporting regular rainfall.

[0028] To collect and centrally discharge rainwater from multiple thin pipes 11, a thick pipe 12 is connected to the end of the thin pipe 11 away from the drainage channel 5. The thick pipe 12 is located below the thin pipe 11 and is set parallel to the extension direction of the drainage channel 5. The bottom end of the thin pipe 11 is fixedly connected to the top wall of the thick pipe 12. The diameter of the thick pipe 12 is designed to be larger than that of the thin pipe 11 in order to accommodate the flow from multiple thin pipes 11. The two ends of the thick pipe 12 are respectively provided with outlet 2 15, which are directly connected to the external environment. The opening direction of outlet 2 15 is consistent with the axial direction of the thick pipe 12. The thick pipe 12 is fixed to the bottom of the bridge deck 1 by connectors or supported by the crossbeam structure on the support column 2 to ensure the structural stability of the thick pipe 12 in the full water state.

[0029] In order to construct a dual drainage guarantee mechanism and improve drainage efficiency during rainstorms, a side pipe 13 is fixedly connected to the other side wall of the drainage trough 5. The side pipe 13 and the thin pipe 11 are located on opposite side walls of the drainage trough 5. The side pipe 13 serves as an independent direct discharge channel. An outlet 14 is directly opened at the end of the side pipe 13 away from the drainage trough 5. There are two side pipes 13, which are located at both ends of one side of the drainage trough 5.

[0030] As a preferred embodiment, the upper surface of the bridge deck 1 is set as an arched structure with a high middle and low sides. The drainage channel 5 is located at the lowest point of the slope of the bridge deck 1 to maximize the water collection effect. Multiple slots 7 are evenly distributed along the length of the cover plate 6. The slots 7 penetrate the upper and lower surfaces of the cover plate 6 to ensure rapid infiltration of rainwater.

[0031] In a preferred embodiment, the size of the filter screen 9 is larger than the aperture of the hole 8 to completely cover the hole 8. Multiple bolts 10 are distributed around the circumference of the hole 8 to ensure that the filter screen 9 is firmly fixed. The depth of the mounting groove is adapted to the thickness of the filter screen 9 so that the surface of the filter screen 9 after installation is flush with the bottom wall of the drainage groove 5, thereby reducing water flow resistance.

[0032] As a preferred embodiment, the side pipe 13 is specially designed with an L-shaped bend structure, so that the opening of outlet 14 faces the lower outer side of the bridge deck 1 to prevent the discharged water from polluting the lower structure of the bridge. A rodent-proof net is fixedly installed at outlet 15 to prevent small animals from entering the pipe network through the thick pipe 12 to build nests and cause blockages.

[0033] Working principle: When using the drainage pipe network for municipal bridge maintenance, after rainwater falls on the bridge surface 1, the rainwater flows to both sides along the preset slope of the bridge surface 1. The rainwater eventually collects above the drainage ditch 5 at the junction of the bridge surface 1 and the sidewalk 3. The rainwater seeps into the drainage ditch 5 through the slots 7 on the surface of the cover plate 6. The slots 7 are designed to ensure drainage while preventing large objects from falling into the ditch. Rainwater flows in the drainage channel 5 and passes through the filter screen 9 at the top of the hole 8. Leaves, gravel and other debris are intercepted by the filter screen 9. The debris cannot enter the pipe system below through the hole 8, thus effectively preventing blockage inside the pipe. The filtered rainwater is then diverted and discharged. Some rainwater flows into the coarse pipe 12 through multiple thin pipes 11 on one side of the drainage channel 5. The rainwater is discharged into the external drainage system through the outlets 15 at both ends of the coarse pipe 12. Another part of the rainwater flows through the side pipe 13 on the other side of the drainage channel 5. The rainwater is discharged directly through the outlet 14 at the end of the side pipe 13. In heavy rain, the coarse pipe 12 receives the water collected by multiple thin pipes 11 and works with the side pipe 13 to drain the water. This dual-channel design ensures that the rainwater drains quickly, improves the overall drainage efficiency, and prevents water accumulation on the bridge surface 1. During municipal maintenance, maintenance personnel can remove the cover plate 6, loosen the bolts 10 to remove the filter screen 9, clean the debris trapped on the filter screen 9, and then re-fix the filter screen 9 with the bolts 10. This process ensures the long-term smooth flow of the drainage network. The support column 2 continuously provides stable structural support for the bridge deck 1 and the drainage network. The guardrail 4 prevents people from falling. Finally, through the synergistic effect of graded diversion, debris filtration, and stable support, the orderly discharge of rainwater from the bridge is achieved.

Claims

1. A drainage network for municipal bridge maintenance, comprising a bridge deck (1), with supporting columns (2) fixedly connected below the bridge deck (1), and sidewalks (3) on both sides of the bridge deck (1), with guardrails (4) fixedly connected to the outer side of the sidewalks (3); characterized in that, A drainage ditch (5) is provided at the junction of the bridge deck (1) and the sidewalk (3). The top of the drainage ditch (5) is covered with a cover plate (6). The surface of the cover plate (6) is provided with slots (7). The bottom of the drainage ditch (5) is provided with holes (8). The top of the holes (8) is provided with a filter screen (9). The filter screen (9) is fixed by bolts (10). A thin pipe (11) is fixedly connected to one side of the drainage ditch (5). The end of the thin pipe (11) away from the drainage ditch (5) is connected to a thick pipe (12). The two ends of the thick pipe (12) are provided with outlets (15). The other side of the drainage ditch (5) is fixedly connected to a side pipe (13). The end of the side pipe (13) is provided with outlet (14).

2. The drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, The slots (7) are evenly distributed along the surface of the cover plate (6), and the slots (7) penetrate the thickness direction of the cover plate (6). The cover plate (6) is engaged with the top of the drainage groove (5).

3. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, The bottom wall of the drainage channel (5) is recessed to form an installation groove. The filter screen (9) is embedded in the installation groove and covers the hole (8). The bolt (10) passes through the edge of the filter screen (9) and is threaded to the bottom wall of the drainage channel (5).

4. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, The thin tube (11) is perpendicular to the length direction of the drainage trough (5), the bottom end of the thin tube (11) is connected to the top wall of the thick tube (12), and the diameter of the thick tube (12) is larger than the diameter of the thin tube (11).

5. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, There are multiple thin tubes (11), which are arranged at intervals along the length of the drainage channel (5), and all of the thin tubes (11) flow into the thick tube (12).

6. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, The side pipe (13) and the thin pipe (11) are located on opposite sides of the drainage trough (5), and there are two side pipes (13), which are located at both ends of one side of the drainage trough (5).

7. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, Both the first outlet (14) and the second outlet (15) are connected to the external environment, with the first outlet (14) facing the lower side of the bridge deck (1).

8. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, The thick pipe (12) is arranged parallel to the drainage trough (5), the thick pipe (12) is located below the drainage trough (5), and the thick pipe (12) is fixed to the bottom of the bridge deck (1) by a connector.

9. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, The upper surface of the bridge deck (1) has a preset slope, the drainage ditch (5) is located at the lowest point of the slope, and the sidewalk (3) is higher than the drainage ditch (5).

10. A drainage pipe network for municipal bridge maintenance according to claim 1, characterized in that, The top of the support column (2) is provided with a crossbeam structure, which supports both the bridge deck (1) and the thick pipe (12).

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