Municipal bridge silt-preventing drainage structure

Abstract

This utility model relates to the field of municipal drainage technology, and in particular to a silt-prevention and drainage structure for municipal bridges. It includes a sedimentation tank, a filter pipe, and a cleaning assembly. A rainwater grate is installed above the sedimentation tank, and the cleaning assembly is also installed above the sedimentation tank. Horizontal drainage pipes are installed on both sides above the sedimentation tank. A filter pipe is installed between the horizontal drainage pipe and the sedimentation tank. A vertical drainage pipe is installed at the bottom of the horizontal drainage pipe. A filter plate for filtering rainwater is installed inside the filter pipe. A scraper is installed on the side of the filter plate closest to the sedimentation tank, and an impeller is installed at the other end of the filter plate. This utility model uses a sedimentation tank to store rainwater, allowing heavier silt to naturally settle at the bottom of the sedimentation tank. As the water level rises, rainwater enters the filter pipe. The filter plate filters the rainwater entering the filter pipe, preventing large amounts of silt from entering the horizontal drainage pipe. Furthermore, as the rainwater flows through the filter pipe, it drives the impeller to rotate, which in turn drives the scraper to rotate and clean the filter plate, preventing the filter plate from being clogged by silt and affecting the drainage speed.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage technology, and in particular to a silt-prevention and drainage structure for municipal bridges. Background Technology

[0002] Municipal bridges are an important component of urban infrastructure, primarily used to cross rivers, valleys, roads, or other obstacles, connecting different areas of a city and ensuring the continuity and smooth flow of traffic. They not only provide convenient passage for pedestrians and vehicles but also carry various municipal pipelines, such as water supply, drainage, electricity, and communications, thereby supporting the daily operation of the city.

[0003] To prevent rainwater from accumulating and causing flooding on the bridge surface, and to prevent rainwater from flowing directly from the bridge surface to the road below and affecting traffic, almost all municipal bridges are equipped with drainage systems. These drainage systems mostly consist of inlets and pipes. The pipes connect the inlets to the city's sewer system, discharging rainwater into the city's sewer pipes.

[0004] Most existing bridge drainage pipes consist of horizontal and vertical pipes. Although the rain grate at the inlet can block some debris from entering, it is not very effective at blocking silt. Once silt enters the horizontal pipe, it will accumulate in the horizontal pipe if the impact force of the rainwater is insufficient, thus affecting the drainage speed or even blocking the horizontal pipe. In addition, the horizontal pipes are mostly installed on the side of the bridge and are quite long, which is very unfavorable for cleaning operations. Utility Model Content

[0005] To overcome the problem that most existing bridge drainage pipes consist of horizontal and vertical pipes, and that when silt enters the horizontal pipes, it will accumulate and block the horizontal pipes if the impact force of rainwater is insufficient.

[0006] The technical solution of this utility model is as follows: a municipal bridge anti-siltation and drainage structure, including a sedimentation tank, a filter pipe and a cleaning component. A rainwater grate is installed above the sedimentation tank, and a cleaning component is installed above the sedimentation tank. Drainage horizontal pipes are installed on both sides above the sedimentation tank. A filter pipe is installed between the drainage horizontal pipe and the sedimentation tank. The two ends of the filter pipe are fixedly connected to the drainage horizontal pipe and the sedimentation tank, respectively. A drainage riser is installed at the bottom of the drainage horizontal pipe. A filter plate for filtering rainwater is installed on the inner side of the filter pipe. A scraper is installed on the side of the filter plate near the sedimentation tank, and an impeller is installed at the other end of the filter plate.

[0007] Preferably, a settling groove is provided at the connection between the sedimentation tank and the rain grate, and the depth of the settling groove is the same as the thickness of the rain grate.

[0008] Preferably, the cleaning assembly includes a crossbar, a vertical bar, a cleaning branch, and a float. A hollow tubular guide tube is provided above the sedimentation tank, and a vertical bar is slidably connected in the guide tube.

[0009] Preferably, a cleaning branch is provided at the upper end of the upright, and the cleaning branch is set horizontally and faces the same direction as the inlet groove of the rain grate.

[0010] Preferably, a horizontal bar is installed above the upright post, and floats are installed at both ends and the middle of the horizontal bar. The floats are positioned to avoid the water inlet of the rain grate. The upright post, cleaning branch, and horizontal bar are all made of lightweight plastic.

[0011] Preferably, a rotating shaft is provided in the middle of the scraper, the rotating shaft passes through the filter plate and is rotatably connected to the filter plate, a support shaft is provided at one end of the rotating shaft, a support frame is provided at one end of the filter tube, and the support shaft is rotatably connected to the support frame.

[0012] Preferably, a connecting groove is provided on the outer side of the rotating shaft, the impeller shaft is hollow and provided with a connecting key, and the impeller is fixedly connected to the rotating shaft through the cooperation of the connecting key and the connecting groove.

[0013] The beneficial effects of this utility model are: By setting up a sedimentation tank to store rainwater, heavier silt naturally settles at the bottom of the tank. As the water level rises, the rainwater enters the filter pipe, where the filter plate filters the rainwater, preventing a large amount of silt from entering the drainage pipe. As the rainwater flows through the filter pipe, it drives the impeller to rotate, which in turn drives the scraper to rotate and clean the filter plate, preventing the filter plate from being blocked by silt and affecting the drainage speed. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model; Figure 2 The diagram shown is a three-dimensional structural schematic of the sedimentation tank of this utility model; Figure 3 The diagram shown is a three-dimensional structural schematic of the cleaning component of this utility model; Figure 4 The diagram shown is a three-dimensional structural schematic of the filter tube of this utility model. Figure 5 The diagram shown is a three-dimensional structural schematic of the impeller of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Sedimentation tank; 101. Guide pipe; 102. Sedimentation tank; 2. Filter pipe; 201. Support frame; 3. Drainage horizontal pipe; 4. Drainage vertical pipe; 5. Rain grate; 601. Horizontal bar; 602. Vertical bar; 603. Cleaning branch; 604. Float; 7. Filter plate; 8. Scraper; 801. Rotating shaft; 802. Connecting groove; 803. Support shaft; 9. Impeller; 901. Connecting key. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please see Figures 1-5 This utility model provides an embodiment of a municipal bridge anti-siltation and drainage structure, including a sedimentation tank 1, a filter pipe 2, and a cleaning assembly. A rainwater grate 5 is installed above the sedimentation tank 1, and a cleaning assembly is also installed above the sedimentation tank 1. Drainage horizontal pipes 3 are installed above both sides of the sedimentation tank 1. A filter pipe 2 is installed between the drainage horizontal pipe 3 and the sedimentation tank 1. Both ends of the filter pipe 2 are fixedly connected to the drainage horizontal pipe 3 and the sedimentation tank 1, respectively. A drainage riser 4 is installed at the bottom of the drainage horizontal pipe 3, and a filter plate 7 for filtering rainwater is installed inside the filter pipe 2. A scraper 8 is provided on one side of the filter plate 7 near the sedimentation tank 1, and an impeller 9 is provided on the other end of the filter plate 7. By setting up the sedimentation tank 1 to store rainwater, the heavier silt is naturally deposited at the bottom of the sedimentation tank 1. As the water level rises, the rainwater enters the filter pipe 2. The filter plate 7 filters the rainwater entering the filter pipe 2 to prevent a large amount of silt from entering the drainage horizontal pipe 3. When the rainwater flows through the filter pipe 2, it drives the impeller 9 to rotate, thereby driving the scraper 8 to rotate and clean the filter plate 7, preventing the filter plate 7 from being blocked by silt and affecting the drainage speed.

[0018] Please see Figure 2 In this embodiment, a recessed groove 102 is provided at the connection between the sedimentation tank 1 and the rain grate 5. The depth of the recessed groove 102 is the same as the thickness of the rain grate 5. The recessed groove 102 embeds the rain grate 5 above the sedimentation tank 1, so that rainwater can enter the sedimentation tank 1 from above the rain grate 5.

[0019] Please see Figure 2 and Figure 3 In this embodiment, the cleaning assembly includes a crossbar 601, a vertical rod 602, a cleaning branch 603, and a float 604. A hollow tubular guide tube 101 is provided above the sedimentation tank 1. The vertical rod 602 is slidably connected in the guide tube 101. A cleaning branch 603 is provided at the upper end of the vertical rod 602. The cleaning branch 603 is horizontally arranged and faces the same direction as the inlet groove of the rainwater grate 5. A crossbar 601 is horizontally arranged above the vertical rod 602. Floats 604 are provided at both ends and the middle position of the crossbar 601. Position 604 avoids the inlet channel of the rain grate 5. The upright 602, cleaning branch 603, and crossbar 601 are all made of lightweight plastic. When plastic bags or other debris block the inlet channel of the rain grate 5, the water level above the rain grate 5 rises continuously. At this time, the float 604 rises with the water level, causing the crossbar 601 and upright 602 to move upward. This allows the cleaning branch 603 to lift the debris, enabling the rain grate 5 to take in water normally. The sliding connection between the upright 602 and the guide tube 101 serves as a guide.

[0020] Please see Figures 4-5In this embodiment, a rotating shaft 801 is provided in the middle of the scraper 8. The rotating shaft 801 passes through the filter plate 7 and is rotatably connected to the filter plate 7. A support shaft 803 is provided at one end of the rotating shaft 801, and a support frame 201 is provided at one end of the filter tube 2. The support shaft 803 is rotatably connected to the support frame 201. A connecting groove 802 is provided on the outer side of the rotating shaft 801. The shaft of the impeller 9 is hollow and is provided with a connecting key 901. The impeller 9 is fixedly connected to the rotating shaft 801 through the cooperation of the connecting key 901 and the connecting groove 802. The support frame 201 supports one end of the rotating shaft 801, and the filter plate 7 supports the other end of the rotating shaft 801. The rotating shaft 801 is rotatably installed at the axis of the filter tube 2 to prevent the impeller 9 from contacting the inner wall of the filter tube 2 and generating huge friction.

[0021] During use, rainwater enters the sedimentation tank 1 from the inlet trough of the rainwater grate 5. The sedimentation tank 1 stores the rainwater, allowing heavier silt to naturally settle at the bottom of the sedimentation tank 1. As the water level rises, the rainwater enters the filter pipe 2. The filter plate 7 filters the rainwater entering the filter pipe 2, preventing a large amount of silt from entering the drainage horizontal pipe 3. Furthermore, as the rainwater flows through the filter pipe 2, it drives the impeller 9 to rotate, which in turn drives the scraper 8 to rotate and clean the filter plate 7, preventing the filter plate 7 from being blocked by silt and affecting the drainage speed. Since the sediment accumulates in the sedimentation tank 1 instead of the drainage pipe 3, municipal workers can easily remove the sediment from the sedimentation tank 1 by simply lifting the storm drain grate 5 and the crossbar 601, without having to go through the trouble of disassembling the drainage pipe 3, which greatly saves cleaning time and manpower. When plastic bags or other debris clog the inlet channel of the rain grate 5, the water level above the rain grate 5 rises continuously. At this time, the float 604 rises with the water level, causing the horizontal bar 601 and the vertical bar 602 to move upward, thereby using the cleaning branch 603 to lift the debris, allowing the rain grate 5 to take in water normally.

[0022] Through the above steps, rainwater is stored in a sedimentation tank 1, allowing heavier sediment to naturally settle at the bottom of the tank. As the water level rises, the rainwater enters the filter pipe 2, where the filter plate 7 filters the incoming rainwater, preventing a large amount of sediment from entering the drainage horizontal pipe 3. Furthermore, as the rainwater flows through the filter pipe 2, it drives the impeller 9 to rotate, which in turn drives the scraper 8 to rotate and clean the filter plate 7, preventing it from being clogged by sediment and affecting the drainage speed.

Claims

1. A municipal bridge anti-silt drainage structure comprising a sediment tank (1); characterized in that: It also includes a filter pipe (2) and a cleaning component. A rain grate (5) is provided above the sedimentation tank (1). A cleaning component is provided above the sedimentation tank (1). Drainage horizontal pipes (3) are provided on both sides above the sedimentation tank (1). A filter pipe (2) is provided between the drainage horizontal pipe (3) and the sedimentation tank (1). The two ends of the filter pipe (2) are fixedly connected to the drainage horizontal pipe (3) and the sedimentation tank (1) respectively. A drainage riser (4) is provided at the bottom of the drainage horizontal pipe (3). A filter plate (7) for filtering rainwater is provided on the inner side of the filter pipe (2). A scraper (8) is provided on the side of the filter plate (7) close to the sedimentation tank (1). An impeller (9) is provided at the other end of the filter plate (7).

2. The municipal bridge anti silting drainage structure as claimed in claim 1 wherein: A settling groove (102) is provided at the connection between the sedimentation box (1) and the rain grate (5), and the depth of the settling groove (102) is the same as the thickness of the rain grate (5).

3. The municipal bridge anti silting drainage structure as claimed in claim 1 wherein: The cleaning assembly includes a crossbar (601), a vertical pole (602), a cleaning branch (603), and a float (604). A hollow tubular guide tube (101) is provided above the sedimentation tank (1), and the vertical pole (602) is slidably connected in the guide tube (101).

4. The municipal bridge anti- silting drainage structure according to claim 3, characterized in that: A cleaning branch (603) is provided at the upper end of the upright (602). The cleaning branch (603) is set horizontally and faces the same direction as the water inlet of the rain grate (5).

5. The municipal bridge siltation prevention drainage structure according to claim 4, characterized in that: A horizontal bar (601) is installed above the upright pole (602). Floats (604) are installed at both ends and in the middle of the horizontal bar (601). The position of the floats (604) avoids the water inlet of the rain grate (5). The upright pole (602), the cleaning branch (603) and the horizontal bar (601) are all made of lightweight plastic.

6. The municipal bridge siltation prevention drainage structure according to claim 1, characterized in that: A rotating shaft (801) is provided in the middle of the scraper (8). The rotating shaft (801) passes through the filter plate (7) and is rotatably connected to the filter plate (7). A support shaft (803) is provided at one end of the rotating shaft (801). A support frame (201) is provided at one end of the filter tube (2). The support shaft (803) is rotatably connected to the support frame (201).

7. The municipal bridge siltation-preventing drainage structure according to claim 6, characterized by: A connecting groove (802) is provided on the outer side of the rotating shaft (801). The shaft of the impeller (9) is hollow and is provided with a connecting key (901). The impeller (9) is fixedly connected to the rotating shaft (801) through the cooperation of the connecting key (901) and the connecting groove (802).

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