Built-in viaduct circular pipe drainage system

Abstract

The invention relates to the technical field of drainage structures, and particularly discloses a built-in viaduct round pipe drainage system which comprises a viaduct deck, viaduct box girders, piers and guardrails. Bridge deck water collecting grooves are formed in the two sides, with the lower gradient, of the viaduct deck correspondingly, and detachable primary filtering covers are arranged above the bridge deck water collecting grooves; a movable baffle is arranged at the bottom of the primary filter cover, a vertical drainage pipe is arranged at the bottom of the bridge floor water collecting tank, a shifting piece is arranged in the vertical drainage pipe, a water treatment tank is arranged at the bottom of the vertical drainage pipe, a grinding device is arranged in the water treatment tank, and a round pipe drainage pipe is arranged on one side of the bottom of the water treatment tank and arranged in the bridge pier; a circular pipe groove matched with the circular pipe drainage pipe is formed in the pier. According to the built-in viaduct circular pipe drainage system, the problems that according to an existing viaduct drainage structure, a drainage pipe is exposed out of a beam body, the appearance of a bridge is affected, durability maintenance of a pipeline is not facilitated, drainage is not smooth, and the drainage effect is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of drainage structures, in particular to a built-in viaduct circular pipe drainage system. Background Art

[0002] A viaduct is a three-dimensional transportation facility, which is mainly used to improve the traffic capacity of roads and solve the problem of ground traffic congestion. In recent years, a large number of viaducts have been built in major cities. Compared with ground roads, urban viaducts face the problem of bridge deck drainage. Rainwater falling on the bridge deck should flow into the drainage pipe through the transverse slope and longitudinal slope of the bridge deck. The conventional viaduct bridge deck drainage layout is to set up drainage pipes on both sides of the bridge deck near the guardrail to the bottom of the top plate, and then connect to the drainage pipes close to the beam body and the outside of the bridge pier to drain the rainwater into the water collection well buried in the ground, and connect to the drainage well through the underground drainage pipe. This drainage layout method exposes the drainage pipe outside the beam body, which not only affects the appearance of the bridge, but also is not conducive to the durability maintenance of the pipeline.

[0003] Moreover, after long-term use, the filter structure in the existing viaduct with drainage structure is easily blocked by debris, resulting in poor drainage and affecting the drainage effect. Therefore, in view of the above situation, it is urgent to provide a drainage system with good drainage effect, which does not affect the beauty of the bridge and is conducive to the maintenance of pipeline durability. Summary of the invention

[0004] The purpose of the present invention is to provide a built-in viaduct circular pipe drainage system, which solves the problem of the existing viaduct drainage structure, in which the drainage pipe is exposed outside the beam body, affecting the appearance of the bridge, being unfavorable for the durability maintenance of the pipe, and causing unsmooth drainage, thus affecting the drainage effect.

[0005] To achieve the above-mentioned purpose, the present invention provides a built-in viaduct circular pipe drainage system, including an viaduct deck, an viaduct box girder, piers and guardrails. Both sides of the viaduct deck with a lower slope are provided with bridge deck water collection grooves, and the bridge deck water collection grooves are arranged at equal intervals along the longitudinal direction of the entire bridge. A detachable primary filter cover is provided above the bridge deck water collection groove, and a movable baffle is provided at the bottom of the primary filter cover. A vertical drain pipe is provided at the bottom of the bridge deck water collection groove, and the vertical drain pipe is embedded in the viaduct box girder. A toggle plate is provided inside the vertical drain pipe. A water treatment box is provided at the bottom of the vertical drain pipe, and a grinding device is provided inside the water treatment box. A circular tube drain pipe is provided on one side of the bottom of the water treatment box, and the circular tube drain pipe is built into the pier. A circular tube groove matching the circular tube drain pipe is provided inside the pier, and the circular tube drain pipe is fixedly connected to the circular tube groove through a fixing ring.

[0006] Preferably, the bridge deck sump is located inside the box girder of the viaduct, the top of the primary filter cover is flush with the bridge deck of the viaduct, the movable baffle is movably connected to the bottom of the primary filter cover, and fixed columns are provided on the four corners of the movable baffle. The bottom of the primary filter cover is provided with a mounting groove that cooperates with the fixed column, and a guide rod is provided inside the mounting groove. One end of the guide rod is fixedly connected to the top wall in the mounting groove, and the other end thereof passes through the top of the fixed column and is slidably connected to the fixed column. A limit block is provided at one end of the guide rod that passes through the fixed column, and both ends of the limit block are in sliding contact with the inner wall of the fixed column. A through opening for the guide rod to move is provided on the top of the fixed column, and a spring is provided on the outer side of the guide rod, one end of the spring is connected to the top of the fixed column, and the other end thereof is connected to the top wall in the mounting groove.

[0007] Preferably, the primary filter cover is a rainwater grate, a handle is provided on the top of the primary filter cover, both ends of the handle are rotatably connected to the primary filter cover, a handle groove matching the handle is provided on the primary filter cover, both ends of the primary filter cover are provided with open grooves rotatably connected to both ends of the handle, one end of the open groove is connected to one end of the handle groove, and the movable baffle is provided with a plurality of drain outlets arranged at intervals and staggered along the length direction.

[0008] Preferably, the upper and lower ends of the vertical drainage pipe are respectively connected to the bridge deck water collection tank and the water treatment tank. A horizontal fixing rod is provided at one end of the vertical drainage pipe close to the bridge deck water collection tank. A rotating shaft is provided in the middle of the fixing rod. A plurality of evenly distributed toggle plates are provided around the rotating shaft. The toggle plates are rotatably connected to the fixing rod through the rotating shaft.

[0009] Preferably, a rotating shaft is provided inside the water treatment tank, and the rotating shaft is connected to the grinding device with concentric circles as the matching reference. The top of the rotating shaft is rotatably connected to the top wall inside the water treatment tank, and a first gear is provided on the outside of the top of the rotating shaft. A meshing second gear is provided on the outside of the first gear. A motor is provided outside the water treatment tank, and the output end of the motor passes through the top of the water treatment tank and is connected to the second gear through a coupling. The grinding device is fixed to the inside of the water treatment tank by a fixing device, and the fixing device is located on the inner wall of the water treatment tank.

[0010] Preferably, the grinding device comprises an inclined filter screen, a clockwise grinding disc and a counterclockwise grinding disc, with two grinding discs forming a group and multiple groups provided, wherein the diameters of the grinding discs decrease in sequence based on the angle of the inclined filter screen.

[0011] Preferably, the bottom of the filter is tilted, and the bottom of the filter includes a drain port, a sealing plate and a fixed plate. The sealing plate blocks the drain port, one side of the sealing plate is hinged to one side of the fixed plate, a strong magnet one is provided on the other side of the sealing plate, a strong magnet two cooperating with the strong magnet one is provided on the side wall of the drain port, a fixed block one is provided on the inner wall of the sealing plate, a fixed block two is provided on the side wall of the filter close to the drain port, a reset spring is provided between the fixed block one and the fixed block two, a drain pipe is provided directly below the drain port, and the drain pipe extends to the outside of the water treatment tank.

[0012] Preferably, the fixing ring includes two adjusting half rings with the same structure, the adjusting half ring includes an adjusting rod and an arc-shaped half ring, the adjusting rod includes a threaded rod and a threaded sleeve, the threaded sleeve is sleeved on the outside of the threaded rod, and a threaded groove matching the thread of the threaded rod is provided inside the threaded sleeve, the outer side of the arc-shaped half ring is rotatably connected to the top of the threaded sleeve, and a rubber gasket is provided on the inner side of the arc-shaped half ring.

[0013] Preferably, the water treatment tank is located outside the viaduct box girder, and a solar cell panel is provided on the sunny side of the water treatment tank.

[0014] The advantages and positive effects of the built-in viaduct circular pipe drainage system described in the present invention are: 1. The present invention arranges a circular pipe groove inside the viaduct structure, and arranges the circular pipe drainage pipe in the circular pipe groove to form a whole with the viaduct structure, thereby forming a closed rainwater drainage system, avoiding the drainage pipe from being exposed outside the beam body, not affecting the appearance of the bridge, and also facilitating the durability maintenance of the pipe.

[0015] 2. The present invention sets a movable baffle at the bottom of the primary filter cover. When the rainwater discharge volume increases, the movable baffle cannot bear the pressure of a large amount of rainwater. Under the action of the gravity of the rainwater, the movable baffle is pressed downward. The movable baffle moves downward under the action of the spring to form an opening with the side of the primary filter cover. A large amount of rainwater not only flows down to the bridge deck trough through the drain port of the movable baffle, but also flows down to the bridge deck trough through the opening, thereby increasing the drainage volume of the primary filter cover, guiding the rainwater to flow downward, avoiding a large amount of rainwater from accumulating on the bridge deck, and improving the drainage effect.

[0016] 3. The present invention sets a grinding device in the water treatment box to crush impurities in rainwater. By setting an inclined filter screen, impurities are convenient to fall to the bottom of the filter screen along the inclined surface, thereby reducing the probability of impurities blocking the filter screen, ensuring smooth drainage and improving drainage effect.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a built-in circular pipe drainage system for a viaduct according to the present invention; Figure 2 It is a schematic diagram of the structure of a primary filter cover in a built-in viaduct circular pipe drainage system of the present invention; Figure 3 It is a schematic diagram of an adjustment semi-ring in a built-in viaduct circular pipe drainage system of the present invention; Figure 4 It is a schematic diagram of a toggle plate in a built-in circular pipe drainage system of a viaduct according to the present invention; Figure 5It is a schematic diagram of the internal structure of a water treatment tank in a built-in viaduct circular pipe drainage system of the present invention; Figure 6 A schematic diagram of a filter screen in a built-in circular pipe drainage system of a viaduct according to the present invention; Figure 7 This is a schematic diagram of the opening of a sealing plate in a filter screen in a built-in viaduct circular pipe drainage system of the present invention; Figure 8 It is a side view of a primary filter cover in a built-in viaduct circular pipe drainage system of the present invention; Fig. 9 This is a schematic diagram of the separation of the primary filter cover and the movable baffle in a built-in viaduct circular pipe drainage system of the present invention; Fig.10 The present invention is a top view of a movable baffle in a built-in circular pipe drainage system of an elevated bridge.

[0019] Reference numerals 1. Viaduct deck; 2. Fixing rod; 3. Water treatment box; 4. Circular pipe drain pipe; 5. Municipal rainwater system; 6. Built-in conversion well; 7. Circular pipe groove; 8. Fixing ring; 9. Vertical drain pipe; 10. Toggle plate; 11. Bridge deck water collection tank; 12. Guardrail; 13. Handle; 14. Handle groove; 15. Open groove; 16. Primary filter cover; 17. Threaded rod; 18. Threaded sleeve; 19. Arc half ring; 20. Rubber gasket; 21. Motor; 22. First gear Wheel; 23, second gear; 24, rotating shaft; 25, grinding device; 26, fixing device; 27, filter screen; 28, sewage pipe; 29, solar panel; 30, fixing block 1; 31, fixing block 2; 32, reset spring; 33, sealing plate; 34, fixing plate; 35, strong magnet 1; 36, strong magnet 2; 37, mounting groove; 38, guide rod; 39, limit block; 40, fixing column; 41, movable baffle; 42, drain; 43, spring. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] Example like Figure 1 As shown, a built-in viaduct circular pipe drainage system includes an viaduct deck 1, a viaduct box girder, bridge piers, and guardrails 12. Both sides of the viaduct deck 1 with a lower slope are provided with deck water collection tanks 11. The deck water collection tanks 11 are located inside the viaduct box girder. The deck water collection tanks 11 are arranged at equal intervals along the longitudinal direction of the bridge. A removable primary filter cover 16 is provided above the deck water collection tanks 11. Figure 2 As shown, the primary filter cover 16 is a rainwater grate, and a handle 13 is provided on the top of the primary filter cover 16. Both ends of the handle 13 are rotatably connected to the primary filter cover 16. A handle groove 14 matching the handle 13 is provided on the primary filter cover 16. Both ends of the primary filter cover 16 are provided with an open groove 15 rotatably connected to both ends of the handle 13, and one end of the open groove 15 is connected to one end of the handle groove 14. The handle 13 is located in the handle groove 14 to keep the primary filter cover 16 flat. One end of the open groove 15 is connected to one end of the handle groove 14, so that the handle 13 is conveniently placed in the handle groove 14.

[0023] The primary filter cover 16 is fixedly connected to the bridge deck water collection tank 11 by bolts, and the handle 13 is located in the handle 13 groove. The primary filter cover 16 performs preliminary filtering on the rainwater to be discharged, filtering out larger branches and other debris. When the primary filter cover 16 needs to be removed, the bolts are loosened, the handle 13 is removed from the handle 13 groove, and the primary filter cover is lifted and removed by lifting the handle 13.

[0024] like Fig.10As shown, the top of the primary filter cover 16 is flush with the viaduct deck 1, and a movable baffle 41 is provided at the bottom of the primary filter cover 16. The movable baffle 41 is provided with a plurality of drain ports 42 arranged at intervals and staggered along the length direction. Rainwater flowing down from the primary filter cover 16 enters the bridge deck water collection tank 11 after secondary filtration by the movable baffle 41. The rainwater enters the bridge deck water collection tank 11 through the staggered drain ports 42, and the movable baffle 41 performs secondary filtration on the rainwater.

[0025] like Figure 8 As shown, the movable baffle 41 is movably connected to the bottom of the primary filter cover 16, and fixed columns 40 are provided on the four corners of the movable baffle 41. The primary filter cover 16 has a mounting groove 37 at the bottom to match the fixed column 37. A guide rod 38 is provided inside the mounting groove 37. One end of the guide rod 38 is fixedly connected to the inner top wall of the mounting groove 37, and the other end thereof passes through the top of the fixed column 40 and is slidably connected to the fixed column 40. A limit block 39 is provided at one end of the guide rod 38 passing through the fixed column 40, and both ends of the limit block 39 are in slidable contact with the inner wall of the fixed column 40. A through opening for the guide rod 38 to move is provided at the top of the fixed column 40. A spring 43 is sleeved on the outer side of the guide rod 38, and one end of the spring 43 is connected to the top of the fixed column 40, and the other end thereof is connected to the inner top wall of the mounting groove 37. As shown in FIG. Fig. 9 As shown, when the amount of rainwater discharged increases, the amount of rainwater discharged through the primary filter cover 16 also increases, and the movable baffle 41 cannot withstand the pressure of rainwater, under the action of the gravity of rainwater, the movable baffle 41 is pressed down, and the movable baffle 41 moves down along the guide rod 38, the fixed column 40 moves down, and the spring 43 stretches. At this time, the movable baffle 41 and the periphery of the primary filter cover 16 form an opening, and rainwater enters the bridge deck sump 11 along the opening, increasing the water discharge of the primary filter cover 16, avoiding a large amount of rainwater from accumulating on the bridge deck, and improving the drainage effect. When the amount of rainwater discharged decreases, the rainwater pressure on the movable baffle 41 decreases, and under the action of the spring 43, the fixed column 40 moves up along the guide rod 38, driving the movable baffle 41 to move up until the movable baffle 41 conflicts with the bottom of the primary filter cover 16.

[0026] A vertical drain pipe 9 is provided at the bottom of the bridge deck trough 11, and the vertical drain pipe 9 is embedded in the box beam of the viaduct. A toggle plate 10 is provided inside the vertical drain pipe 9, and a water treatment box 3 is provided at the bottom of the vertical drain pipe 9. A circular pipe drain pipe 4 is provided on one side of the bottom of the water treatment box 3. The circular pipe drain pipe 4 is built into the pier, and a circular pipe groove 7 matching the circular pipe drain pipe 4 is provided inside the pier. The circular pipe drain pipe 4 is fixedly connected to the circular pipe groove 7 through a fixing ring 8. By providing the circular pipe groove 7 inside the viaduct structure, the circular pipe drain pipe 4 is provided in the circular pipe groove 7 to form a whole with the viaduct structure, forming a closed rainwater drainage system, avoiding the drain pipe from being exposed outside the beam body, not affecting the beauty of the bridge, and also facilitating the durability maintenance of the pipeline. The inner diameter of the vertical drain pipe 9 is larger than the inner diameter of the circular pipe drain pipe 4.

[0027] like Figure 3 As shown, the fixing ring 8 includes two adjusting half rings with the same structure, the adjusting half ring includes an adjusting rod and an arcuate half ring 19, the adjusting rod includes a threaded rod 17 and a threaded sleeve 18, the threaded sleeve 18 is sleeved on the outside of the threaded rod 17, and a threaded groove is provided inside the threaded sleeve 18 to match the thread of the threaded rod 17, the outside of the arcuate half ring 19 is rotatably connected to the top of the threaded sleeve 18, and a rubber gasket 20 is provided inside the arcuate half ring 19. The arcuate half ring 19 is adapted to the outer wall of the circular pipe drainage pipe 4, and the two adjusting half rings are symmetrically located on both sides of the circular pipe drainage pipe 4, one end of the threaded rod 17 is pre-buried on the inner wall of the circular pipe groove 7, the inner side of the rubber gasket 20 contacts the outer wall of the circular pipe drainage pipe 4, and the threaded sleeves 18 on both sides are twisted at the same time, so that the arcuate half rings 19 on both sides clamp the circular pipe drainage pipe 4, thereby improving the stability of the circular pipe drainage pipe 4 in the circular pipe groove 7. The bottom of the circular pipe drainage pipe 4 is connected to the built-in conversion well, and then connected to the municipal rainwater system 5.

[0028] The upper and lower ends of the vertical drain pipe 9 are respectively connected to the bridge deck trough 11 and the water treatment tank 3. A horizontal fixed rod 2 is provided at one end of the vertical drain pipe 9 close to the bridge deck trough 11. A rotating shaft is provided in the middle of the fixed rod 2. A plurality of evenly distributed toggle plates 10 are provided around the rotating shaft. The toggle plates 10 are rotatably connected to the fixed rod 2 via the rotating shaft. Rainwater in the bridge deck trough 11 enters the water treatment tank 3 through the vertical drain pipe 9. When rainwater in the bridge deck trough 11 enters the vertical drain pipe 9, the rainwater will wash the toggle plate 10. Under the action of inertia, the toggle plate 10 rotates around the fixed rod 2, driving the rainwater mixed with impurities such as mud and sand to flow downward, making the drainage smooth. Figure 4 As shown in the figure, the vertical arrow is the direction of water flow, and the arc arrow is the rotation direction of the paddle 10.

[0029] like Figure 5As shown, a grinding device 25 is provided inside the water treatment box 3, a rotating shaft 24 is provided inside the water treatment box 3, the rotating shaft 24 is connected to the grinding device 25 with a concentric circle as a matching reference, the top of the rotating shaft 24 is rotatably connected to the top wall of the water treatment box 3, a first gear 22 is provided on the outside of the top of the rotating shaft 24, and a meshing second gear 23 is provided on the outside of the first gear 22, and a motor 21 is provided outside the water treatment box 3, the output end of the motor 21 passes through the top of the water treatment box 3, and is connected to the second gear 23 through a coupling, and the grinding device 25 is fixed inside the water treatment box 3 through a fixing device 26, and the fixing device 26 is located on the inner wall of the water treatment box 3. The fixing device 26 is any device in the prior art that can fix the grinding device 25. The water treatment box 3 is located outside the box girder of the viaduct, and a solar panel 29 is provided on the sunny side of the water treatment box 3. The solar panel 29 is electrically connected to the motor 21. The electric energy generated by the solar panel 29 is stored, and when the motor 21 needs electric energy to work, the electric energy stored in the solar panel 29 is transmitted to the motor 21 through wires. The motor 21 drives the second gear 23 to rotate, thereby driving the first gear 22 to rotate, so that the rotating shaft 24 rotates. The rotating shaft 24 rotates, driving the grinding device 25 to rotate, and grinding the impurities in the rainwater.

[0030] The grinding device 25 includes an inclined filter screen 27 and a grinding disc, and is provided with multiple groups, wherein the diameter of the grinding disc decreases in sequence based on the inclined filter screen angle. The fixing device 26 is mainly used to fix the filter screen 27 so that the side of the filter screen 27 is fixed on the inner wall of the water treatment box 3. The structure and working principle of the grinding device 25 belong to the prior art and can achieve the crushing of impurities. When rainwater enters the water treatment box 3, it is firstly ground by the grinding device 25 to crush the impurities. The crushing of impurities prevents large-volume impurities from clogging the drain pipe and ensures the drainage effect. The rainwater is filtered out by the filter screen 27, and discharged into the built-in conversion well 6 through the circular pipe drain pipe 4, and then enters the municipal rainwater system 5. The inclined filter screen 27 facilitates the filtered impurities to fall to the bottom of the filter screen 27 along the inclined surface.

[0031] like Figure 6 As shown, the bottom of the filter 27 is tilted, and the bottom of the filter 27 includes a sewage outlet, a sealing plate 33 and a fixing plate 34. The sealing plate 33 blocks the sewage outlet, and one side of the sealing plate 33 is hinged to one side of the fixing plate 34. A strong magnet 1 35 is provided on the other side of the sealing plate 33. A strong magnet 2 36 cooperating with the strong magnet 1 35 is provided on the side wall of the sewage outlet. A fixing block 1 30 is provided on the inner side wall of the sealing plate 33. A fixing block 2 31 is provided on the side wall of the filter 27 close to the sewage outlet. A reset spring 32 is provided between the fixing block 1 30 and the fixing block 2 31. A sewage pipe 28 is provided just below the sewage outlet, and the sewage pipe 28 extends to the outside of the water treatment tank 3. Figure 7As shown, the filtered impurities fall to the bottom of the filter screen 27, slide along the inclined surface of the bottom of the filter screen 27 to the sealing plate 33. As the impurities accumulated on the sealing plate 33 increase, the sealing plate 33 cannot bear the weight of the impurities, and the strong magnet 1 35 and the strong magnet 2 36 separate. The sealing plate 33 cannot block the sewage outlet, and the impurities fall into the sewage pipe 28 and are discharged from the filter screen 27, avoiding excessive impurities and affecting the drainage effect. As the impurities fall into the sewage pipe 28, the weight of the impurities on the sealing plate 33 decreases. Under the action of the reset spring 32, the strong magnet 1 35 and the strong magnet 2 36 are adsorbed together, and the sealing plate 33 is reset to block the sewage outlet.

[0032] When in use, rainwater on the viaduct deck 1 enters the movable baffle 41 through the primary filter cover 16. When the rainwater discharge volume increases, the rainwater discharge volume through the primary filter cover 16 also increases. When the movable baffle 41 cannot withstand the pressure of rainwater, the movable baffle 41 is pressed down under the action of the rainwater gravity, and the movable baffle 41 and the primary filter cover 16 form an opening around the movable baffle 41. Rainwater enters the bridge deck sump 11 along the opening, increasing the water discharge volume of the primary filter cover 16, avoiding a large amount of rainwater from accumulating on the bridge deck, and improving the drainage effect. When the rainwater discharge volume decreases, the rainwater pressure on the movable baffle 41 decreases. Under the action of the spring 43, the fixed column 40 moves up along the guide rod 38, driving the movable baffle 41 to move up until the movable baffle 41 conflicts with the bottom of the primary filter cover 16. When the rainwater in the bridge deck sump 11 enters the vertical drain pipe 9, the rainwater will wash the toggle plate 10. Under the action of inertia, the toggle plate 10 rotates circumferentially along the fixed rod 2, driving the rainwater mixed with impurities such as mud and sand to flow down, so that the drainage is smooth. When the rainwater enters the water treatment box 3, it is first ground by the grinding device 25 to crush the impurities. The crushing of impurities prevents large-volume impurities from blocking the drain pipe, ensuring the drainage effect. The rainwater is filtered out through the filter screen 27, discharged into the built-in conversion well 6 through the circular pipe drain pipe 4, and then enters the municipal rainwater system 5. The inclined filter screen 27 facilitates the filtered impurities to fall to the bottom of the filter screen 27 along the inclined surface. The filtered impurities fall to the bottom of the filter screen 27, slide along the inclined surface of the bottom of the filter screen 27 to the sealing plate 33. As the impurities accumulated on the sealing plate 33 increase, the sealing plate 33 cannot bear the weight of the impurities, and the strong magnet 1 35 and the strong magnet 2 36 separate. The sealing plate 33 cannot block the sewage outlet, and the impurities fall into the sewage pipe 28 and are discharged from the filter screen 27, avoiding excessive impurities and affecting the drainage effect. As the impurities fall into the sewage pipe 28, the weight of the impurities on the sealing plate 33 decreases. Under the action of the reset spring 32, the strong magnet 1 35 and the strong magnet 2 36 are adsorbed together, and the sealing plate 33 is reset to block the sewage outlet.

[0033] Therefore, the present invention adopts the above-mentioned built-in viaduct circular pipe drainage system to solve the problem of the existing viaduct drainage structure, in which the drainage pipe is exposed outside the beam body, affecting the appearance of the bridge, being not conducive to the durability maintenance of the pipe, and causing unsmooth drainage, thus affecting the drainage effect.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A built-in viaduct circular pipe drainage system, comprising a viaduct deck, a viaduct box girder, piers, and guardrails, characterized in that: The elevated bridge has bridge deck water collection gutters on both sides with a lower bridge deck slope. The bridge deck water collection gutters are arranged at equal intervals along the longitudinal direction of the entire bridge. A detachable primary filter cover is provided above the bridge deck water collection gutters, and a movable baffle is provided at the bottom of the primary filter cover. A vertical drain pipe is provided at the bottom of the bridge deck water collection gutters, and the vertical drain pipe is embedded in the elevated bridge box girder. A toggle plate is provided inside the vertical drain pipe. A water treatment box is provided at the bottom of the vertical drain pipe, and a grinding device is provided inside the water treatment box. A circular tube drain pipe is provided on one side of the bottom of the water treatment box, and the circular tube drain pipe is built into the pier. A circular tube groove matching the circular tube drain pipe is provided inside the pier, and the circular tube drain pipe is fixedly connected to the circular tube groove through a fixing ring.

2. The built-in viaduct circular pipe drainage system according to claim 1, characterized in that: The bridge deck sump is located inside the box girder of the viaduct, the top of the primary filter cover is flush with the bridge deck of the viaduct, the movable baffle is movably connected to the bottom of the primary filter cover, and fixed columns are provided on the four corners of the movable baffle. The bottom of the primary filter cover is provided with a mounting groove that cooperates with the fixed column, and a guide rod is provided inside the mounting groove. One end of the guide rod is fixedly connected to the top wall in the mounting groove, and the other end thereof passes through the top of the fixed column and is slidably connected to the fixed column. A limit block is provided at one end of the guide rod that passes through the fixed column, and both ends of the limit block are in sliding contact with the inner wall of the fixed column. A through opening for the guide rod to move is provided on the top of the fixed column, and a spring is provided on the outer side of the guide rod, one end of the spring is connected to the top of the fixed column, and the other end thereof is connected to the top wall in the mounting groove.

3. The built-in viaduct circular pipe drainage system according to claim 1, characterized in that: The primary filter cover is a rainwater grate, and a handle is provided on the top of the primary filter cover. Both ends of the handle are rotatably connected to the primary filter cover. The primary filter cover is provided with a handle groove matching the handle. Both ends of the primary filter cover are provided with an open groove rotatably connected to both ends of the handle, one end of the open groove is connected to one end of the handle groove, and the movable baffle is provided with a plurality of drain outlets arranged at intervals and staggered along the length direction.

4. The built-in viaduct circular pipe drainage system according to claim 1, characterized in that: The upper and lower ends of the vertical drainage pipe are respectively connected to the bridge deck water collection tank and the water treatment box. A horizontal fixing rod is provided at one end of the vertical drainage pipe close to the bridge deck water collection tank. A rotating shaft is provided in the middle of the fixing rod. A plurality of evenly distributed toggle plates are provided around the rotating shaft. The toggle plates are rotatably connected to the fixing rod through the rotating shaft.

5. The built-in viaduct circular pipe drainage system according to claim 1, characterized in that: A rotating shaft is provided inside the water treatment box, and the rotating shaft is connected to the grinding device with concentric circles as the matching reference. The top of the rotating shaft is rotatably connected to the top wall of the water treatment box. A first gear is provided on the outside of the top of the rotating shaft, and a meshing second gear is provided on the outside of the first gear. A motor is provided outside the water treatment box, and the output end of the motor passes through the top of the water treatment box and is connected to the second gear through a coupling. The grinding device is fixed to the inside of the water treatment box by a fixing device, and the fixing device is located on the inner wall of the water treatment box.

6. The built-in viaduct circular pipe drainage system according to claim 1, characterized in that: The grinding device comprises an inclined filter screen, a clockwise grinding disc and a counterclockwise grinding disc, with two grinding discs forming a group and multiple groups provided, wherein the diameters of the grinding discs decrease in sequence based on the angle of the inclined filter screen.

7. The built-in viaduct circular pipe drainage system according to claim 6, characterized in that: The bottom of the filter is tilted, and the bottom of the filter includes a sewage outlet, a sealing plate and a fixed plate. The sealing plate blocks the sewage outlet. One side of the sealing plate is hinged to one side of the fixed plate. A strong magnet 1 is provided on the other side of the sealing plate. A strong magnet 2 cooperating with the strong magnet 1 is provided on the side wall of the sewage outlet. A fixed block 1 is provided on the inner wall of the sealing plate. A fixed block 2 is provided on the side wall of the filter close to the sewage outlet. A reset spring is provided between the fixed block 1 and the fixed block 2. A sewage pipe is provided directly below the sewage outlet, and the sewage pipe extends to the outside of the water treatment tank.

8. The built-in viaduct circular pipe drainage system according to claim 1, characterized in that: The fixing ring includes two adjusting half rings with the same structure, and the adjusting half ring includes an adjusting rod and an arcuate half ring. The adjusting rod includes a threaded rod and a threaded sleeve. The threaded sleeve is sleeved on the outside of the threaded rod and has a threaded groove inside that matches the thread of the threaded rod. The outer side of the arcuate half ring is rotatably connected to the top of the threaded sleeve, and a rubber gasket is provided on the inner side of the arcuate half ring.

9. The built-in viaduct circular pipe drainage system according to claim 1, characterized in that: The water treatment tank is located outside the viaduct box girder, and a solar cell panel is arranged on the sunny side of the water treatment tank.

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