A rapid drainage device for viaduct

Abstract

This invention provides a rapid drainage device for elevated bridges, including bridge piers and a bridge deck. Multiple first grooves are spaced apart on both sides of the bridge deck. Each first groove is separated by vertical partitions to form a drainage trough and a debris trough. The debris trough is located on the side near the edge of the bridge deck. An inclined filter screen is installed at the upper end of the drainage trough, and a collection box is embedded in the debris trough. The side of the collection box near the filter screen is flush with the lowest side of the filter screen. The lower ends of the multiple drainage troughs on the same side of the bridge deck are interconnected to form a longitudinal culvert, the lower end of which is connected to a drain pipe. An automatic cleaning mechanism for scraping the filter screen is installed in the drainage trough at the lower end of the filter screen. This invention can automatically separate and collect rainwater and particulate matter such as gravel, preventing the accumulation of gravel and other particles on the filter screen and causing blockages, thus improving rainwater drainage efficiency. It effectively solves the problem of dust adhering to the filter screen and causing poor drainage. It requires no power and is highly practical.

Description

Technical Field

[0001] This utility model relates to the field of bridge deck drainage technology, specifically to a rapid drainage device for elevated bridges. Background Technology

[0002] Elevated bridges, also known as viaducts, are a type of bridge that crosses deep valleys and canyons instead of high embankments, as well as bridges that span roads in urban areas. They feature high-supported towers or pillars and cross valleys, rivers, roads, or other low-lying obstacles. With urban development, traffic congestion and dense buildings, coupled with the difficulty of widening streets, have made elevated bridges a necessity, helping to alleviate traffic density and improve transportation efficiency. However, elevated bridge decks are prone to water accumulation during the rainy season. Vehicles traveling at high speeds are susceptible to skidding or loss of control due to the water, leading to serious traffic accidents. Therefore, the drainage structure of elevated bridge decks is particularly important.

[0003] In existing elevated bridges, rainwater falling on the bridge surface flows through intermittently installed rainwater filters along the cross and longitudinal slopes into drainage pipes. It then collects in vertical drainage pipes located at the bridge piers and abutments, eventually draining into the ground drainage system. However, due to the large number of transport vehicles on roads and bridges, gravel often falls, and small stones can clog the filters during drainage. Over time, this reduces rainwater drainage efficiency, leading to excessive water accumulation on the bridge surface. Furthermore, after prolonged use, rainwater carries dust and silt from the bridge surface, which adheres to the filters, further clogging them and hindering drainage. This reduces the drainage efficiency of the elevated bridge's surface drainage system, causing the bridge to become submerged and weakening its structure, potentially leading to damage.

[0004] In summary, there is an urgent need to design a rapid drainage device for elevated bridges that can overcome the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a rapid drainage device for elevated bridges that overcomes the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a rapid drainage device for elevated bridges, comprising:

[0007] The bridge piers and the bridge deck located on top of the bridge piers;

[0008] Multiple first grooves are spaced apart on both sides of the bridge deck. The first grooves are divided into a drain groove and a debris groove by vertical partitions. The vertical partitions are arranged along the length of the bridge deck. The debris groove is located on the side near the edge of the bridge deck. The upper end of the drain groove is provided with an inclined filter screen plate. A collection box is embedded in the debris groove. The side of the filter screen plate near the collection box is lower than the side near the middle of the bridge deck. The side of the collection box near the filter screen plate is flush with the lowest side of the filter screen plate.

[0009] The lower ends of multiple drainage channels on the same side of the bridge deck are interconnected to form a longitudinal underground ditch. The lower end of the longitudinal underground ditch is connected to a drainage pipe, and the lower end of the drainage pipe is connected to an underground drainage system.

[0010] The drain groove at the lower end of the filter screen is equipped with an automatic cleaning mechanism for scraping and brushing the filter screen.

[0011] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.

[0012] Furthermore, the automatic cleaning mechanism includes a water wheel that is rotatably installed in the drain trough, a plurality of brush rods that are evenly mounted on the upper part of the outer periphery of the water wheel, and a plurality of bristles that are evenly arranged on the surface of the brush rods away from the water wheel. Both ends of the same brush rod are fixedly connected to the water wheel via elastic telescopic rods.

[0013] When the water wheel rotates, the brush bristles can contact the surface of the filter screen and scrape it as the elastic telescopic rod extends and retracts.

[0014] Furthermore, a rotating shaft is fixedly inserted through the middle of the water wheel, and the two ends of the rotating shaft are rotatably connected to the two side walls of the drain trough through bearings. The end of the elastic telescopic rod away from the brush rod is fixedly connected to the wheel surface of the water wheel through a connecting rod.

[0015] Furthermore, the elastic telescopic rod includes a sleeve fixedly connected to the connecting rod, an inner rod slidably disposed inside the sleeve near one end of the brush rod, and a limiting slider slidably disposed inside the sleeve. A spring is fixedly connected between the limiting slider and the inner bottom wall of the sleeve, and the other end of the inner rod is fixedly connected to the end of the brush rod.

[0016] Furthermore, the collection box has a mesh-like perforated structure;

[0017] The lower end of the vertical partition has a through hole, which is connected to the interior of the lower end of the drain trough.

[0018] Furthermore, the lower end of the debris groove is a slope, and it is lower the closer it is to the through hole.

[0019] Furthermore, a protective filter screen is provided at the lower end of the drain trough. The protective filter screen is located at the lower end of the through hole and at the upper end of the longitudinal dark ditch.

[0020] Furthermore, a second groove is provided on the upper surface of the first groove, and a third groove and a fourth groove are provided on both sides of the vertical partition, penetrating its side walls.

[0021] The four edges of the filter screen are respectively placed in the second and third grooves at the upper end of the drain trough. The upper outer wall of the collection box is provided with a cap, which matches and connects with the second and fourth grooves in the debris trough.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This utility model discloses a rapid drainage device for elevated bridges. A vertical partition divides a first groove into a drainage trough and a debris trough. An inclined filter screen is installed at the upper end of the drainage trough, and a collection box is embedded in the debris trough. The lower ends of multiple drainage troughs are interconnected to form a longitudinal culvert. The lower end of the longitudinal culvert is connected to a drain pipe. When rainwater passes through the filter screen at the upper end of the drainage trough, it flows directly into the drainage trough and then into the underground drainage system through the drain pipe via the longitudinal culvert. Meanwhile, small pebbles washed into the upper part of the filter screen by the rainwater fall into the collection box in the debris trough along the inclined direction of the filter screen and are collected. This achieves separate collection of rainwater and pebbles, preventing pebbles from accumulating on the filter screen and causing blockages, thus improving the efficiency of rainwater discharge.

[0024] 2. This utility model discloses a rapid drainage device for elevated bridges. It employs an automatic cleaning mechanism within a drainage groove at the lower end of a filter screen to scrape and clean the filter screen surface, preventing silt accumulation and drainage difficulties. Specifically, a water wheel is rotated within the drainage groove, with multiple brush rods on its upper outer periphery. Brushes are attached to the brush rods. When rainwater flows into the first groove from the center of the road surface, the impact and gravity of the rainwater drive the water wheel to rotate, which in turn rotates the brush rods. The extension and retraction of the elastic telescopic rods ensures the brushes remain in constant contact with the filter screen surface, effectively cleaning it. This solves the problem of dust and silt adhering to the filter screen, causing poor drainage, improving the drainage efficiency of the elevated bridge deck drainage system, preventing bridge damage caused by rainwater accumulation, and requiring no power during the cleaning process, making it highly practical.

[0025] 3. This utility model discloses a rapid drainage device for elevated bridges. It features through holes in the vertical partition plate at the lower end of the debris trough, allowing rainwater to flow into the drain trough and thus drain the rainwater. Furthermore, the inclined surface at the lower end of the debris trough facilitates rainwater flow into the drain trough. Additionally, a protective filter screen is installed at the lower end of the drain trough to prevent items or large pieces of debris from falling into the drain pipe and causing blockage when replacing the first filter screen and collection box. Simultaneously, the brushes on the automatic cleaning mechanism can scrape and clean the protective filter screen, effectively preventing drainage problems after prolonged use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the rapid drainage device for elevated bridges provided by this utility model;

[0027] Figure 2 This is a cross-sectional structural schematic diagram of the rapid drainage device for elevated bridges provided by this utility model;

[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a cross-sectional schematic diagram of the automatic cleaning mechanism in an embodiment of this utility model;

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Bridge piers;

[0032] 2. Bridge deck; 21. First groove; 211. Second groove;

[0033] 3. Vertical partition; 31. Through hole; 32. Third groove; 33. Fourth groove;

[0034] 4. Drainage trough; 41. Longitudinal concealed ditch; 42. Drainage pipe;

[0035] 5. Miscellaneous waste bin;

[0036] 6. Collection box; 61. Hat brim;

[0037] 7. Filter screen;

[0038] 8. Automatic cleaning mechanism; 81. Water wheel; 82. Brush rod; 83. Brush bristles; 84. Elastic telescopic rod; 841. Sleeve; 842. Inner rod; 843. Limiting slider; 844. Spring; 85. Rotating shaft; 86. Connecting rod;

[0039] 9. Protective filter screen. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0041] Please see Figures 1 to 4 A rapid drainage device for elevated bridges, comprising:

[0042] Bridge pier 1 and bridge deck 2 located on the upper end of the bridge pier 1;

[0043] Multiple first grooves 21 are spaced apart on both sides of the bridge deck 2. The first grooves 21 are divided into a drain trough 4 and a debris trough 5 by vertical partitions 3. The vertical partitions 3 are arranged along the length of the bridge deck 2. The debris trough 5 is located on the side near the edge of the bridge deck 2. An inclined filter screen 7 is provided at the upper end of the drain trough 4. A collection box 6 is embedded in the debris trough 5. The side of the filter screen 7 near the collection box 6 is lower than the side near the middle of the bridge deck 2. The side of the collection box 6 near the filter screen 7 is flush with the lowest side of the filter screen 7.

[0044] The lower ends of multiple drainage channels 4 on the same side of the bridge deck 2 are interconnected to form a longitudinal underground ditch 41. The lower end of the longitudinal underground ditch 41 is connected to a drainage pipe 42, and the lower end of the drainage pipe 42 is connected to an underground drainage system.

[0045] Specifically, when rainwater in the middle of the bridge deck 2 passes through the filter screen 7 at the top of the drainage channel 4, it flows directly into the drainage channel 4 and then into the underground drainage system through the longitudinal culvert 41 and the drain pipe 42. Meanwhile, the small gravel washed into the top of the filter screen 7 by the rainwater falls into the collection box 6 embedded in the debris trough 5 along the inclined direction of the filter screen 7 for collection. This achieves separate collection of rainwater and gravel and other particulate matter, avoids the accumulation of gravel and other particulate matter on the filter screen 7 and prevents blockage, and improves the rainwater discharge efficiency.

[0046] The drain groove 4 at the lower end of the filter screen 7 is equipped with an automatic cleaning mechanism 8 for scraping and brushing the filter screen 7. Since dust, mud and other debris may accumulate on the filter screen 7 after long-term use or after heavy rain, the automatic cleaning mechanism 8 can scrape and clean the surface of the filter screen 7 to avoid the accumulation of silt and drainage difficulties.

[0047] Preferably, the automatic cleaning mechanism 8 includes a water wheel 81 rotatably disposed in the drain trough 4, a plurality of brush rods 82 evenly mounted on the upper outer periphery of the water wheel 81, and a plurality of bristles 83 evenly disposed on the surface of the brush rods 82 away from the water wheel 81. Both ends of the same brush rod 82 are fixedly connected to the water wheel 81 near the water wheel 81 by an elastic telescopic rod 84.

[0048] When the water wheel 81 rotates, the bristles 83 can contact the surface of the filter screen 7 and scrape it as the elastic telescopic rod 84 extends and retracts.

[0049] In this embodiment, when rainwater flows into the first groove 21 from the middle of the road surface, the impact force of the rainwater and the gravity falling onto the water wheel 81 cause the water wheel 81 to rotate, thereby causing the water wheel 81 to drive the brush rod 82 to rotate. Due to the automatic extension and retraction of the elastic telescopic rod 84, the brush bristles 83 can always be in contact with the filter screen plate 7, so that the brush bristles 83 can scrape the surface of the filter screen plate 7 to achieve the cleaning effect. This effectively solves the problem of dust adhering to the filter screen plate 7 and causing poor drainage. Moreover, it requires no power and is highly practical.

[0050] Preferably, a rotating shaft 85 is fixedly inserted through the middle of the water wheel 81, and the two ends of the rotating shaft 85 are rotatably connected to the two side walls of the drain trough 4 through bearings. The end of the elastic telescopic rod 84 away from the brush rod 82 is fixedly connected to the wheel surface of the water wheel 81 through a connecting rod 86.

[0051] Preferably, the elastic telescopic rod 84 includes a sleeve 841 fixedly connected to the connecting rod 86, an inner rod 842 slidably disposed inside the sleeve 841 near the brush rod 82, and a limiting slider 843 slidably disposed inside the sleeve 841. A spring 844 is fixedly connected between the limiting slider 843 and the inner bottom wall of the sleeve 841. The other end of the inner rod 842 is fixedly connected to the end of the brush rod 82. When the spring 844 is in its natural state, the elastic telescopic rod 84 is at its longest length, allowing the brush bristles to clean the area of ​​the filter screen 7 near the drain tank 4.

[0052] Preferably, the collection box 6 has a mesh-like perforated structure;

[0053] The lower end of the vertical partition 3 has a through hole 31, which is connected to the lower interior of the drain trough 4. Rainwater flowing into the collection box 6 is filtered by the mesh-like perforated collection box 6, and then flows into the drain trough 4 through the through hole 31, and is discharged into the groundwater system through the longitudinal culvert 41 and the drain pipe 42. Larger particles such as gravel fall into the collection box 6 for collection.

[0054] Preferably, the lower end of the debris trough 5 is sloped, and the slope decreases as it approaches the through hole 31. This facilitates rainwater flow into the drain trough 4.

[0055] Preferably, the lower end of the drain trough 4 is provided with a protective filter screen 9, which is located at the lower end of the through hole 31 and at the upper end of the longitudinal culvert 41. When the filter screen 7 and the collection box 6 are replaced, items or large pieces of garbage can be prevented from falling into the drain pipe 42 and causing blockage. At the same time, the bristles 83 on the automatic cleaning mechanism 8 can also contact the protective filter screen 9 to scrape and clean its surface when it rotates with the water wheel 81, effectively avoiding the problem of poor drainage after long-term use.

[0056] Preferably, a second groove 211 is provided on the upper surface of the first groove 21 around its perimeter, and a third groove 32 and a fourth groove 33 penetrating the side walls of the vertical partition 3 are provided on both sides of the partition 3.

[0057] The four edges of the filter screen 7 are respectively fitted into the second groove 211 and the third groove 32 at the upper end of the drain trough 4. The upper outer wall of the collection box 6 is provided with a cap 61, which matches and connects with the second groove 211 and the fourth groove 33 in the debris trough 5. The collection box 6 is easy to remove from the debris trough 5, making it convenient for staff to empty the collection box 6 regularly, preventing excessive accumulation of gravel and other debris that may affect the normal drainage of the filter screen 7. The filter screen 7 can also be quickly disassembled for replacement, or the automatic cleaning mechanism 8 and the protective filter screen 9 inside the drain trough 4 can be repaired or replaced by opening the filter screen 7.

[0058] The present invention has been further described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A rapid drainage device for elevated bridges, comprising a pier (1) and a bridge deck (2) disposed on the upper end of the pier (1), characterized in that: Multiple first grooves (21) are spaced apart on both sides of the bridge deck (2). The first grooves (21) are divided into a drain groove (4) and a debris groove (5) by a vertical partition (3). The vertical partition (3) is arranged along the length of the bridge deck (2). The debris groove (5) is located on the side near the edge of the bridge deck (2). The upper end of the drain groove (4) is provided with an inclined filter screen (7). A collection box (6) is embedded in the debris groove (5). The side of the filter screen (7) near the collection box (6) is lower than the side near the middle of the bridge deck (2). The side of the collection box (6) near the filter screen (7) is flush with the lowest side of the filter screen (7). The lower ends of multiple drainage channels (4) on the same side of the bridge deck (2) are interconnected to form a longitudinal culvert (41). The lower end of the longitudinal culvert (41) is connected to a drainage pipe (42), and the lower end of the drainage pipe (42) is connected to an underground drainage system. An automatic cleaning mechanism (8) for scraping the filter screen (7) is provided in the drain groove (4) at the lower end of the filter screen (7).

2. The rapid drainage device for elevated bridges according to claim 1, characterized in that: The automatic cleaning mechanism (8) includes a water wheel (81) that is rotatably installed in the drain trough (4), a plurality of brush rods (82) that are evenly installed on the upper part of the outer periphery of the water wheel (81), and a plurality of bristles (83) that are evenly installed on the surface of the brush rods (82) away from the water wheel (81). Both ends of the same brush rod (82) are fixedly connected to the water wheel (81) on the side close to the water wheel (81) by elastic telescopic rods (84). When the water wheel (81) rotates, the bristles (83) can contact the surface of the filter screen (7) and scrape it as the elastic telescopic rod (84) extends and retracts.

3. The rapid drainage device for elevated bridges according to claim 2, characterized in that, A rotating shaft (85) is fixedly inserted through the middle of the water wheel (81). The two ends of the rotating shaft (85) are rotatably connected to the two side walls of the drain trough (4) through bearings. The end of the elastic telescopic rod (84) away from the brush rod (82) is fixedly connected to the wheel surface of the water wheel (81) through a connecting rod (86).

4. A rapid drainage device for elevated bridges according to claim 3, characterized in that, The elastic telescopic rod (84) includes a sleeve (841) fixedly connected to the connecting rod (86), an inner rod (842) slidably disposed inside the sleeve (841) near the end of the brush rod (82), and a limiting slider (843) slidably disposed inside the sleeve (841). A spring (844) is fixedly connected between the limiting slider (843) and the inner bottom wall of the sleeve (841). The other end of the inner rod (842) is fixedly connected to the end of the brush rod (82).

5. A rapid drainage device for elevated bridges according to any one of claims 1-4, characterized in that: The collection box (6) has a mesh-like hollow structure; The lower end of the vertical partition (3) is provided with a through hole (31), which is connected to the lower end of the drain trough (4).

6. A rapid drainage device for elevated bridges according to claim 5, characterized in that, The lower end of the debris groove (5) is inclined, and the side closer to the through hole (31) is lower.

7. A rapid drainage device for elevated bridges according to claim 6, characterized in that, The lower end of the drain trough (4) is provided with a protective filter screen (9), which is located at the lower end of the through hole (31) and at the upper end of the longitudinal dark ditch (41).

8. A rapid drainage device for elevated bridges according to claim 7, characterized in that: The upper surface of the first groove (21) is provided with a second groove (211) and the vertical partition (3) is provided with a third groove (32) and a fourth groove (33) that penetrate the side walls of the two sides respectively. The four edges of the filter screen (7) are respectively placed in the second groove (211) and the third groove (32) at the upper end of the drain trough (4). The upper outer wall of the collection box (6) is provided with a brim (61), which is matched and connected with the second groove (211) and the fourth groove (33) in the debris trough (5).

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