Road and bridge drainage device
By introducing a scraping and filtration mechanism into the road and bridge drainage system, the problem that the filter screen could not filter fine particulate matter was solved, thereby improving the stability and efficiency of the drainage system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-31
AI Technical Summary
The existing road and bridge drainage system's filter screens cannot effectively filter out soil and dust, causing these fine particles to mix with water to form a slurry that adheres to the inner wall of the water pipes, affecting drainage efficiency.
Design a scraping mechanism including a propeller and a rotating drum. The rotating drum is driven by water flow to rotate, and the raised texture scrapes the inner wall of the drain pipe. Combined with a filtration mechanism, large particles are filtered to prevent clogging.
It effectively prevents soil from adhering to the inner wall of the drainage pipe, reduces the probability of blockage, and ensures the stability and efficiency of the drainage system.
Smart Images

Figure CN224063265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of infrastructure drainage technology, specifically to a road and bridge drainage device. Background Technology
[0002] In order to quickly drain water from the bridge surface and prevent rainwater from accumulating on the bridge deck and seeping into the beams, thus affecting the durability of the bridge, in addition to setting longitudinal and transverse slope drainage, a certain number of drainage pipes need to be set on the bridge deck to form a complete drainage system. The types of drainage pipes generally include metal drainage pipes, reinforced concrete drainage pipes, and transverse drainage pipes.
[0003] Existing road and bridge drainage systems are usually equipped with filters to filter out large particles and prevent them from entering the sewer pipes. However, filters cannot filter out dirt and dust. These fine particles mix with water to form a slurry, which can easily adhere to the inside of the sewer pipes after entering them, thus affecting the drainage system. Utility Model Content
[0004] According to one aspect of the present invention, a road and bridge drainage device is provided, comprising:
[0005] Drainage pipes are installed horizontally.
[0006] A water collection pipe is perpendicular to a drain pipe, and extends upward relative to and connects to the drain pipe.
[0007] The drain pipe is perpendicular to the drain pipe, and extends downward relative to the drain pipe and is connected to the drain pipe.
[0008] The scraping mechanism is located inside the drain pipe and can rotate along the axis of the drain pipe.
[0009] The scraping mechanism includes a propeller and a rotating drum. The propeller and the rotating drum are connected. The propeller is located below the water collection pipe. The outer wall of the rotating drum has raised textures that abut against the inner wall of the drain pipe.
[0010] This invention provides a drainage device for roads and bridges. In this device, soil on the surface of the road or bridge is carried by rainwater through a collection pipe into a drainage pipe. Driven by the impact of the water flow, a scraping mechanism starts to work. The propeller receives the power of the water flow and drives the rotating cylinder to rotate. The raised texture on the outer wall of the rotating cylinder scrapes the inner wall of the drainage pipe, preventing soil from adhering to the inner wall of the drainage pipe, preventing the drainage outlet diameter from decreasing, reducing the probability of blockage, and ensuring the stability of the drainage system.
[0011] In some implementations, the raised texture is a thread or a diagonal pattern.
[0012] Therefore, the raised texture is either threaded or oblique, which can improve the mud removal efficiency of the scraping mechanism.
[0013] In some embodiments, the outer wall of the rotating cylinder is provided with several hollowed-out sections.
[0014] Therefore, by setting up a hollow section to reduce the weight of the rotating cylinder, the rotation of the rotating cylinder can be guaranteed even when the water flow is small.
[0015] In some embodiments, the perforated portions are arranged in a circumferential array, and a scraper is formed between two adjacent perforated portions. The raised texture on the surface of the scraper abuts against the inner wall of the drain pipe.
[0016] Therefore, the rotating cylinder is specifically constructed using the above-mentioned structure. By setting the hollow parts, the weight of the rotating cylinder is reduced. At the same time, the scraper formed between two adjacent hollow parts scrapes and washes the inner wall of the drain pipe, ensuring the working efficiency of the rotating cylinder.
[0017] In some embodiments, a first mounting bearing is provided on the inner wall of one end of the drain pipe, and a first mounting ring is provided on the end of the propeller near the first mounting bearing, with the first mounting ring sleeved inside the first mounting bearing.
[0018] Thus, the propeller is mounted inside the drain pipe via the first mounting bearing.
[0019] In some embodiments, a second mounting bearing is provided on the inner wall of one end of the drain pipe, and a second mounting ring is provided on the end of the rotating cylinder near the second mounting bearing, with the second mounting ring sleeved inside the second mounting bearing.
[0020] Thus, the rotating cylinder is mounted inside the drain pipe via a second mounting bearing.
[0021] In some implementations, the water collection pipe is located on one side of the axis of the drain pipe, and a water collection hopper is provided at the upper end of the water collection pipe, with the diameter of the water collection hopper increasing sequentially from bottom to top.
[0022] Therefore, rainwater is collected by the water collection bucket, and the special diameter of the water collection bucket can be pressurized, thereby applying more impact force to the propeller.
[0023] In some embodiments, a road and bridge drainage device further includes a filtration mechanism, which is located inside a water collection hopper. The filtration mechanism includes a filter screen and several baffles, with the baffles located along the edge of the filter screen and connected end to end.
[0024] Therefore, the filtration system can filter sand and gravel, preventing them from clogging the drainage system.
[0025] In some implementations, the filter screen has a protrusion in the middle.
[0026] This improves the filtration efficiency of the filter. Attached Figure Description
[0027] Figure 1 This is a three-dimensional structural diagram of a road and bridge drainage device according to one embodiment of the present utility model.
[0028] Figure 2 for Figure 1 The diagram shows a three-dimensional structural schematic of a road and bridge drainage device.
[0029] Figure 3 for Figure 1 The diagram shows a three-dimensional structural schematic of the scraping mechanism in a road and bridge drainage device.
[0030] Figure 4 for Figure 1 The diagram shows a three-dimensional structural schematic of an explosive device in a water collection hopper of a road and bridge drainage system.
[0031] Numbers in the diagram: 100-Drainage pipe, 101-First mounting bearing, 102-Second mounting bearing, 103-Flange cover, 200-Water collection pipe, 210-Water collection hopper, 211-Raised dot, 220-Manhole cover, 300-Drain pipe, 400-Scraping mechanism, 410-Power propeller, 411-First mounting ring, 420-Rotating cylinder, 421-Raised texture, 422-Hollowed part, 423-Scraper strip, 424-Second mounting ring, 500-Filtering mechanism, 510-Filter screen, 520-Baffle, 521-Raised part. Detailed Implementation
[0032] The present invention will now be described in further detail with reference to the accompanying drawings.
[0033] Figure 1-2 The illustration schematically shows a road and bridge drainage device according to one embodiment of the present invention. The device aims to solve the problem that in the existing road and bridge drainage system, the filter screen 510 cannot effectively filter mud and dust, resulting in these fine particles mixing with water to form a slurry that enters the drain pipe 300. After the fine particles adhere to the pipe wall, they reduce the drainage efficiency of the drainage system.
[0034] This utility model relates to a road and bridge drainage device, which includes a drainage pipe 100, a water collection pipe 200, a drain pipe 300, a scraping mechanism 400, and a filtering mechanism 500. The drainage pipe 100 is arranged horizontally; the water collection pipe 200 is perpendicular to the drainage pipe 100 and extends upward relative to and communicates with the drainage pipe 100; the drain pipe 300 is also perpendicular to the drainage pipe 100, but extends downward relative to and communicates with the drainage pipe 100; the scraping mechanism 400 is located inside the drainage pipe 100 and can rotate about the axis of the drainage pipe 100; the filtering mechanism 500 is located at the upper end inside the water collection pipe 200 and mainly filters larger particles such as sand and gravel.
[0035] The water collection pipe 200 and the drain pipe 300 are located at opposite ends of the drain pipe 100, and the drain pipe 300 is connected to the drain pipe 100 by a connection, while the water collection pipe 200 is located on the outer wall of the drain pipe 100. The end of the drain pipe 100 away from the drain pipe 300 is sealed with a flange cover 103, so this sealing method is used to install the scraping mechanism 400.
[0036] Combination Figure 2-3 The scraping mechanism 400 includes a propeller 410 and a rotating cylinder 420. The propeller 410 is connected to the rotating cylinder 420 and is located below the water collection pipe 200. The outer wall of the rotating cylinder 420 is provided with raised textures 421, which abut against the inner wall of the drain pipe 100.
[0037] In some embodiments, the raised texture 421 is a thread or a diagonal thread. Using a thread or diagonal thread as the raised texture 421 can improve the mud removal efficiency of the scraping mechanism 400.
[0038] Combination Figure 2-3 The outer wall of the rotating cylinder 420 is provided with several hollow sections 422. By providing hollow sections 422, the weight of the rotating cylinder 420 can be reduced, ensuring that the rotating cylinder 420 can maintain good rotation performance even when the water flow is small.
[0039] Combination Figure 2-3 The perforated portions 422 are arranged in a circumferential array, and a scraper 423 is formed between two adjacent perforated portions 422. The raised texture 421 on the surface of the scraper 423 abuts against the inner wall of the drain pipe 100. The rotating cylinder 420 is constructed with the above structure. By setting the perforated portions 422, the weight is reduced, while the scraper 423 formed between two adjacent perforated portions 422 can effectively scrape and clean the inner wall of the drain pipe 100, ensuring the working efficiency of the rotating cylinder 420.
[0040] Combination Figure 2-3 A first mounting bearing 101 is provided on the inner wall of the drain pipe 100 near the flange cover 103. A first mounting ring 411 is provided on the end of the propeller 410 near the first mounting bearing 101, and the first mounting ring 411 is fitted inside the first mounting bearing 101. The propeller 410 is mounted inside the drain pipe 100 through the first mounting bearing 101.
[0041] Combination Figure 2-3 A second mounting bearing 102 is provided on the inner wall of the drain pipe 100 near the drain pipe 300. A second mounting ring 424 is provided on the end of the rotating cylinder 420 near the second mounting bearing 102, and the second mounting ring 424 is fitted inside the second mounting bearing 102. The rotating cylinder 420 is installed inside the drain pipe 100 through the second mounting bearing 102.
[0042] Combination Figure 1-2 The water collection pipe 200 is located on one side of the axis of the drain pipe 100. A water collection hopper 210 is provided at the upper end of the water collection pipe 200. The diameter of the water collection hopper 210 increases from bottom to top. An openable manhole cover 220 is provided at the end of the water collection hopper 210. Rainwater is collected through the water collection hopper 210. The special diameter design of the water collection hopper 210 can be pressurized, thereby applying more impact force to the propeller 410.
[0043] Combination Figure 2 and 4 The filtration mechanism 500 is located inside the water collection hopper 210. The filtration mechanism 500 includes a filter screen 510 and several baffles 520. The baffles 520 are located along the edge of the filter screen 510 and are connected end to end. The filtration mechanism 500 can filter sand and gravel, preventing sand and gravel from clogging the drainage system.
[0044] The inner wall of the water collection hopper 210 is provided with protrusions 211, which support the filter mechanism 500 inside the water collection hopper 210. When it is necessary to clean the filter mechanism 500, it can be directly removed to remove the sand and gravel.
[0045] Combination Figure 2 and 4 The filter screen 510 has a protrusion 521 in the middle. This helps to improve the filtration effect of the filter screen 510.
[0046] In this embodiment, the scraping mechanism 400 is specifically as follows:
[0047] Combination Figure 3 The scraping mechanism 400 includes a propeller 410 and a rotating cylinder 420, with the propeller 410 connected to the rotating cylinder 420. The propeller 410 is composed of a rotating shaft and several blades arranged in a circular array on the outer wall of the rotating shaft; a first mounting ring 411 is formed on the end of the blades away from the rotating cylinder 420. The rotating cylinder 420 has a cylindrical structure, and its outer wall has several hollowed-out portions 422, thus forming a scraper strip 423 between two adjacent hollowed-out portions 422. Raised textures 421 are formed on the surface of the scraper strip 423, and the top of the raised textures 421 abuts against the inner wall of the drain pipe 100. The first mounting ring 411 is formed on the end of the rotating cylinder 420 away from the propeller 410.
[0048] During operation:
[0049] Rainwater from the road and bridge surface enters the drainage pipe 100 through the collection pipe 200. Soil and gravel enter the drainage system along with the rainwater. Under the action of the filtration mechanism 500, the gravel is blocked in the filter screen 510. Soil and rainwater mix to form mud, which enters the drainage pipe 100. Driven by the impact of the water flow, the scraping mechanism 400 starts to work. The propeller 410 receives the power of the water flow and drives the rotating cylinder 420 to rotate. The raised texture 421 on the outer wall of the rotating cylinder 420 scrapes the inner wall of the drainage pipe 100 to prevent soil from adhering to the inner wall of the drainage pipe 100. The mud is finally discharged from the drain pipe 300.
[0050] The above are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A bridge drainage device, characterized by comprising: The utility model relates to a kind of drainpipe (100), transverse arrangement; Water collecting pipe (200) is perpendicular to drainpipe (100), the water collecting pipe (200) extends upwards relative to drainpipe (100) and is communicated with drainpipe (100); Sewer (300) is perpendicular to drainpipe (100), the sewer (300) extends downwards relative to drainpipe (100) and is communicated with drainpipe (100); Scraping mechanism (400) is located in drainpipe (100), the scraping mechanism (400) can rotate along the axis of drainpipe (100), The scraping mechanism (400) includes power paddle (410), rotating cylinder (420), the power paddle (410), rotating cylinder (420) are connected, the power paddle (410) is located below water collecting pipe (200), the outer wall of rotating cylinder (420) is provided with convex grain (421), and the convex grain (421) is resisted with the inner wall of drainpipe (100). The convex grain (421) is screw thread or diagonal grain.
2. The road and bridge drainage device according to claim 1, characterized in that, The outer wall of rotating cylinder (420) is provided with several hollow parts (422).
3. The road and bridge drainage device according to claim 1, characterized in that, The hollow part (422) is circumferentially arrayed, and the scraping strip (423) is formed between adjacent two hollow parts (422), and the convex grain (421) on the surface of the scraping strip (423) is resisted with the inner wall of drainpipe (100).
4. The road and bridge drainage device according to claim 3, characterized in that The inner wall of one end of drainpipe (100) is provided with first mounting bearing (101), and the end of power paddle (410) close to first mounting bearing (101) is provided with first mounting ring (411), and the first mounting ring (411) is sleeved in first mounting bearing (101).
5. The road and bridge drainage device according to claim 1, characterized in that, The inner wall of one end of drainpipe (100) is provided with second mounting bearing (102), and the end of rotating cylinder (420) close to second mounting bearing (102) is provided with second mounting ring (424), and the second mounting ring (424) is sleeved in second mounting bearing (102).
6. The road and bridge drainage device according to claim 1, characterized in that Water collecting pipe (200) is located at the axis of drainpipe (100) side, and the upper end of water collecting pipe (200) is provided with water collecting hopper (210), and the caliber of water collecting hopper (210) increases gradually from bottom to top.
7. The road and bridge drainage device according to any one of claims 1-6, characterized in that, Further including filter mechanism (500), the filter mechanism (500) is located in water collecting hopper (210), and the filter mechanism (500) includes filter screen (510), and several baffles (520), several baffles (520) are located in filter screen (510) brim, and several baffles (520) are connected head to tail.
8. The road-bridge drainage device according to claim 7, characterized in that The middle position of filter screen (510) is provided with convex part (521).
9. The road-bridge drainage device according to claim 8, characterized in that