Road and bridge drainage structures

Abstract

The present invention provides a road and bridge drainage structure, which belongs to the technical field of road and bridges, and includes a main well and an auxiliary well; a screening base is provided at the lower part of the main well, which divides the main well into a screening chamber and a flow chamber; an inner cylinder and an outer cylinder are provided at the upper end of the screening base, and a plurality of flow holes are provided at circumferential intervals on the inner cylinder; an annular buffer zone is provided on the outer side of the outer cylinder; a filter plate is provided in the auxiliary well, which divides the inner cavity of the auxiliary well into a crushing chamber and a drainage chamber, the crushing chamber is connected to the buffer zone of the screening chamber via the drainage hole, and the drainage chamber is connected to the flow chamber via the drainage hole; a crushing tool is provided in the crushing chamber. The road and bridge drainage structure provided by the present invention separates impurities from clean rainwater through the screening chamber to relieve drainage pressure, and then discharges the impurities in the screening chamber into the crushing chamber of the auxiliary well for crushing and cutting, thereby reducing the possibility of rainwater blockage; the arrangement of the inner cylinder and the outer cylinder allows impurities to enter the crushing chamber for crushing after reaching a certain amount, thereby saving energy consumption.

Description

Technical Field

[0001] The present invention belongs to the technical field of roads and bridges, and more specifically, relates to a road and bridge drainage structure. Background Art

[0002] Roads and bridges are an indispensable part of people's lives. Roads provide people with convenient transportation and enable them to reach a certain place more quickly. Bridges are a type of transportation road that can span two areas, which improves transportation convenience more conveniently. After the construction of a road bridge, a drainage pipe is required to drain the accumulated water on the road bridge. However, most of the time, due to the presence of garbage on the bridge deck, after mixing with rainwater and entering the drainage structure, the drainage structure will be blocked, and finally the bridge drainage pressure will be high, which will affect the service life of the bridge. Summary of the Invention

[0003] The purpose of the present invention is to provide a road and bridge drainage structure, aiming to solve the problem that the drainage pipe does not have an anti-blocking function.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a road and bridge drainage structure, including a main well and an auxiliary well, the top cover of the main well is provided with a rainwater hole; the lower part of the main well is provided with a screening base with drainage holes, and the screening base divides the main well into a screening chamber and a flow chamber; the upper end of the screening base is provided with an inner cylinder and an outer cylinder, the inner cylinder is provided with a plurality of flow holes at intervals in the circumferential direction, and the outer cylinder rotates to switch the opening and closing states of the flow holes; the outer side of the outer cylinder has an annular buffer zone; a filter plate is provided in the auxiliary well, and the filter plate divides the inner cavity of the auxiliary well into a crushing chamber and a drainage chamber, the crushing chamber is connected to the buffer zone of the screening chamber by means of the sewage hole, and the drainage chamber is connected to the flow chamber by means of the drainage hole; a crushing tool is provided in the crushing chamber, and the crushing tool includes a rotating shaft and a cutting blade arranged circumferentially of the rotating shaft.

[0005] As another embodiment of the present application, the screening base is conical, and a downwardly recessed drainage groove is provided on the edge of the screening base. The drainage groove is located outside the outer cylinder and is connected to the drainage hole.

[0006] As another embodiment of the present application, a side of the drain trough close to the drain hole is lower than a side of the drain trough away from the drain hole.

[0007] As another embodiment of the present application, a primary crushing assembly is provided in the screening chamber, and the primary crushing assembly includes a rotating shaft arranged along the axial direction of the main well and a rotating disk provided on the rotating shaft; the rotating disk includes a fixed ring and a plurality of fan-shaped blades evenly fixed on the inner side of the fixed ring, and a flow channel is formed between two adjacent fan-shaped blades.

[0008] As another embodiment of the present application, the front end of the sector-shaped blade has a blade portion, and the upper end of the sector-shaped blade has a crushing spike; the crushing spike faces the upper end, and the end of the crushing spike is attached to the lower end of the top cover.

[0009] As another embodiment of the present application, the lower part of the outer cylinder is also provided with a through hole adapted to the flow hole, and the upper part of the outer cylinder is connected to a rotation drive assembly, which is used to drive the outer cylinder to rotate horizontally to drive the through hole to connect or cover the flow hole.

[0010] As another embodiment of the present application, the rotary drive assembly includes a linkage gear set, a linkage gear sleeve and a return torsion spring;

[0011] The linkage gear set includes a gear ring, a linkage shaft, a first gear, and a second gear; the gear ring is sleeved on the circumference of the fixed ring; the linkage shaft is rotatably connected to the well wall of the main well, the first gear and the second gear are both sleeved on the linkage shaft, and the first gear is meshed with the gear ring; the second gear is located below the first gear; the second gear includes a toothed portion and a smooth portion;

[0012] The linkage gear sleeve includes a connecting ring and an arc-shaped rack. The connecting ring is sleeved on the circumference of the outer cylinder. The arc-shaped rack is arranged on the outside of the arc-shaped rack. The central angle of the arc-shaped rack is less than 45 degrees. The arc-shaped rack is meshed with the teeth of the second gear.

[0013] A reset torsion spring is sleeved on the outside of the linkage shaft, one end of the reset torsion spring is fixedly connected to the well wall of the main well, and the other end of the reset torsion spring is fixedly connected to the wall of the outer cylinder.

[0014] As another embodiment of the present application, there are two arc-shaped racks, and the two arc-shaped racks are symmetrically arranged on the connecting ring; the central angle of the arc-shaped rack is 30°.

[0015] As another embodiment of the present application, a connecting cavity is provided between the main well and the auxiliary well, and a conduction component is provided in the connecting cavity, and the conduction component connects the rotation drive component and the rotating shaft to drive the rotating shaft to rotate; the conduction component includes a transmission gear and a passive gear, and the transmission gear is rotatably connected in the connecting cavity, and the passive gear is sleeved on the rotating shaft; the transmission gear simultaneously engages the first gear and the passive gear.

[0016] As another embodiment of the present application, a receiving ring is provided at the top of the inner tube, and the edge of the receiving ring is attached to the inner wall of the main well; an arc-shaped connecting groove is provided at the lower end of the receiving ring, and the upper end of the outer tube is slidably connected to the arc-shaped connecting groove.

[0017] The beneficial effects of the road and bridge drainage structure provided by the present invention are: compared with the existing technology, the road and bridge drainage structure of the present invention, by setting a main well and an auxiliary well, and dividing the main well and the auxiliary well into two upper and lower areas, separates impurities and clean rainwater through a screening chamber to relieve drainage pressure, and then discharges the impurities in the screening chamber into the crushing chamber of the auxiliary well for crushing and cutting. The crushed impurities fall into the drainage chamber and are mixed with clean rainwater and discharged; the possibility of rainwater blockage is reduced; at the same time, the setting of the inner cylinder and the outer cylinder can intermittently connect the screening chamber and the crushing chamber, so that the impurities enter the crushing chamber for crushing after reaching a certain amount, thereby improving the crushing efficiency and saving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic structural diagram of a road and bridge drainage structure provided by the first embodiment of the present invention;

[0020] Figure 2 A schematic structural diagram of a linkage gear sleeve provided in an embodiment of the present invention;

[0021] Figure 3 A schematic structural diagram of a top cover provided in an embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of a primary crushing assembly provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic structural diagram of a road and bridge drainage structure provided in the second embodiment of the present invention.

[0024] In the figure: 1. Main well; 2. Top cover; 3. Rainwater hole; 4. Rotating shaft; 5. Fan-shaped blade; 6. Crushing spike; 7. Fixed ring; 8. Gear ring; 9. First gear; 10. Linkage shaft; 11. Second gear; 12. Reset torsion spring; 13. Connecting ring; 14. Arc rack; 15. Shielding plate; 16. Inner cylinder; 17. Outer cylinder; 18. Flow hole; 19. Cross bar; 20. Longitudinal bar; 21. Screening base; 22. Drain trough; 23. Drain hole; 24. Drain hole; 25. Drain hole; 26. Filter plate; 27. Rotating shaft; 28. Cutting blade; 29. ​​Transmission gear; 30. Passive gear. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] See also Figures 1 to 5 The road bridge drainage structure provided by the present invention is now described. The road bridge drainage structure includes a main well 1 and an auxiliary well. A rainwater hole 3 is provided on the top cover 2 of the main well 1; a screening base 21 with drainage holes 23 is provided at the lower part of the main well 1. The screening base 21 divides the main well 1 into a screening chamber and a flow chamber; an inner cylinder 16 and an outer cylinder 17 are provided at the upper end of the screening base 21. A plurality of flow holes 18 are provided at intervals in the circumferential direction of the inner cylinder 16. The outer cylinder 17 rotates to switch the opening and closing states of the flow holes 18; an annular buffer zone is provided on the outer side of the outer cylinder 17; a filter plate 26 is provided in the auxiliary well. The filter plate 26 divides the inner cavity of the auxiliary well into a crushing chamber and a drainage chamber. The crushing chamber is connected to the buffer zone of the screening chamber via the drainage hole 25, and the drainage chamber is connected to the flow chamber via the drainage hole 24; a crushing tool is provided in the crushing chamber. The crushing tool includes a rotating shaft 27 and a cutting blade 28 provided circumferentially of the rotating shaft 27.

[0027] Compared with the prior art, the road and bridge drainage structure provided by the present invention has a main well 1 whose inner cavity includes a screening cavity and a flow cavity arranged longitudinally in sequence, and the screening cavity and the flow cavity are separated by a screening base 21, and a plurality of drainage holes 23 are provided on the screening base 21, and the drainage holes 23 are used to connect the screening cavity and the flow cavity for the infiltration of rainwater; an inner cylinder 16 and an outer cylinder 17 are provided in the screening cavity, and a buffer zone is provided between the outer cylinder 17 and the side wall of the main well 1; the inner cylinder 16 is located on the inner side of the outer cylinder 17, and a plurality of flow holes 18 are provided on the side wall of the lower part of the inner cylinder 16, and the outer cylinder 17 rotates around its own central axis to expose or cover the flow holes 18 on the side wall of the inner cylinder 16 to connect the inner cavity of the inner cylinder 16 and the buffer zone.

[0028] An auxiliary well is provided on one side of the main well 1. A filter plate 26 is provided in the auxiliary well. The filter plate 26 divides the auxiliary well into an upper crushing chamber and a lower drainage chamber. The crushing chamber is connected to the buffer zone of the screening chamber of the main well 1 by means of a drainage hole 25; a crushing tool is provided in the crushing chamber, and the crushing tool includes a rotating shaft 27 provided on the central axis of the auxiliary well and a cutting blade 28 connected to the circumference of the rotating shaft 27. The cutting blade 28 rotates with the rotating shaft 27 to cut impurities; the cut impurities enter the drainage chamber through the filter plate 26; the drainage chamber is connected to the flow chamber of the main well 1 by means of the drainage hole 24, and the water in the flow chamber enters the drainage chamber and mixes with the sewage in the drainage chamber.

[0029] The road and bridge drainage structure provided by the present invention provides a main well 1 and an auxiliary well, and divides the main well 1 and the auxiliary well into two upper and lower areas, separates impurities and clean rainwater through a screening chamber to relieve drainage pressure, and then discharges the impurities in the screening chamber into the crushing chamber of the auxiliary well for crushing and cutting. The crushed impurities fall into the drainage chamber, mix with the clean rainwater and are discharged; the possibility of rainwater blockage is reduced; at the same time, the setting of the inner cylinder 16 and the outer cylinder 17 can intermittently connect the screening chamber and the crushing chamber, so that the impurities enter the crushing chamber for crushing after reaching a certain amount, thereby improving the crushing efficiency and saving energy consumption.

[0030] Optionally, the rotating shaft 27 is connected to a driving motor. A motor installation room is provided below the manhole cover of the auxiliary shaft, and the driving motor is provided in the motor installation room and its output end is connected to the rotating shaft 27.

[0031] In some possible embodiments, see Figure 1 The screening base 21 is conical, and a downwardly recessed drain groove 22 is provided on the edge of the screening base 21 . The drain groove 22 is located outside the outer cylinder 17 and is connected to the drain hole 25 .

[0032] The bottom surface of the screening base 21 is flat, while its top surface is tapered, gradually decreasing in height from the center toward the periphery. Drain holes 23 on the screening base 21 allow rainwater from the screening chamber to seep into the flow chamber below, reducing drainage pressure within the screening chamber. The top surface of the screening base 21 is angled to facilitate the discharge of impurities.

[0033] Optionally, the angles between the upper end surface of the screening base 21 and the horizontal plane are different at different positions, wherein the inclination angle of the side of the screening base 21 away from the drainage hole 25 is smaller than the inclination angle of the side of the screening base 21 close to the drainage hole 25. Therefore, the side of the screening base 21 away from the drainage hole 25 is higher than the side close to the drainage hole 25, so as to facilitate the rapid discharge of impurities.

[0034] A drainage groove 22 with an arc-shaped cross section is provided on the outer edge of the screening base 21 . The drainage groove 22 is annular and lower than the upper end surface of the screening base 21 . The drainage groove 22 is connected to the drainage hole 25 .

[0035] Optionally, the side of the drain trough 22 close to the drain hole 25 is lower than the side of the drain trough 22 away from the drain hole 25. The bottom of the drain trough 22 is inclined to facilitate draining.

[0036] In some possible embodiments, see Figure 1 and Figure 4A primary crushing assembly is provided in the screening chamber, which includes a rotating shaft 4 arranged along the axial direction of the main well 1 and a rotating disk arranged on the rotating shaft 4; the rotating disk includes a fixed ring 7 and a plurality of fan-shaped blades 5 evenly fixed on the inner side of the fixed ring 7, and a flow channel is formed between two adjacent fan-shaped blades 5.

[0037] The upper part of the screening chamber is provided with a primary crushing assembly, which performs preliminary crushing and cutting on the impurities entering the screening chamber so that they can pass through the sewage hole 25. The primary crushing assembly includes a rotating shaft 4 and a rotating disk. The end of the rotating shaft 4 is rotatably connected to the lower part of the top cover 2. The rotating disk is located below the top cover 2 and includes a fixed ring 7. The fixed ring 7 is rotatably arranged inside the main well 1. One end of the fan-shaped blade 5 is connected to the rotating shaft 4 and the other end is connected to the inner side of the fixed ring 7. As the fixed ring 7 rotates, it is used to crush the impurities entering the main well 1 from the top cover 2.

[0038] The sector blades 5 are arranged at an angle to the horizontal plane, and there is a gap between two adjacent sector blades 5 , so that a flow channel is formed between the two adjacent sector blades 5 to accommodate rainwater and impurities to pass through.

[0039] Optionally, the cutting edge of the sector blade 5 is located at its front end.

[0040] Specifically, the front end of the sector-shaped blade 5 has a cutting edge, and the upper end of the sector-shaped blade 5 has a crushing spike 6; the crushing spike 6 faces the upper end, and the end of the crushing spike 6 is attached to the lower end of the top cover 2.

[0041] The front of the fan-shaped blade 5 is its rotation direction, and the blade at its front end is used to cut impurities; and a plurality of crushing spikes 6 are arranged at the upper end of the fan-shaped blade 5, and the crushing spikes 6 face upward and are attached to the lower end of the top cover 2, and are used to crush impurities that fall between the fan-shaped blade 5 and the top cover 2.

[0042] Optional, such as Figure 1 and Figure 3 As shown, the top cover 2 is provided with a plurality of rainwater holes 3. These rainwater holes 3 are arc-shaped, and their radial width gradually increases from top to bottom along the top cover 2. The flow area of ​​the rainwater holes 3 gradually increases from top to bottom, preventing excessive pressure from entering the holes and reducing the pressure in the rainwater holes 3.

[0043] In some possible embodiments, see Figure 1 The lower part of the outer cylinder 17 is also provided with a through hole adapted to the flow hole 18. The upper part of the outer cylinder 17 is connected to a rotation drive assembly, which is used to drive the outer cylinder 17 to rotate horizontally to drive the through hole to connect or cover the flow hole 18.

[0044] The inner cylinder 16 and the outer cylinder 17 are rotatably connected, and the through hole and the flow hole 18 are intermittently opened, that is, they are opened only when a certain amount of impurities exist in the inner cylinder 16. When closed, the inner cylinder 16 only drains water to the flow area through the drainage hole 23.

[0045] The outer cylinder 17 is connected to a rotation drive assembly. When the rotation drive assembly drives the outer cylinder 17 to rotate, the through hole can correspond to the flow hole 18. At this time, the inner cavity of the inner cylinder 16 is connected to the buffer zone outside the outer cylinder 17.

[0046] Specifically, the rotary drive assembly includes a linkage gear set, a linkage gear sleeve and a return torsion spring 12 .

[0047] The linkage gear set includes a gear ring 8, a linkage shaft 10, a first gear 9, and a second gear 11; the gear ring 8 is sleeved on the circumference of the fixed ring 7; the linkage shaft 10 is rotatably connected to the well wall of the main well 1, and the first gear 9 and the second gear 11 are both sleeved on the linkage shaft 10, and the first gear 9 is engaged with the gear ring 8; the second gear 11 is located below the first gear 9; the second gear 11 includes a tooth portion and a smooth portion.

[0048] The linkage gear sleeve includes a connecting ring 13 and an arcuate rack 14. The connecting ring 13 is sleeved on the circumference of the outer cylinder 17. The arcuate rack 14 is arranged on the outside of the connecting ring 13. The central angle of the arcuate rack 14 is less than 45°. The arcuate rack 14 meshes with the teeth of the second gear 11.

[0049] The reset torsion spring 12 is sleeved on the outside of the linkage shaft 10 , one end of the reset torsion spring 12 is fixedly connected to the well wall of the main well 1 , and the other end of the reset torsion spring 12 is fixedly connected to the wall of the outer cylinder 17 .

[0050] The rotary drive assembly is used to link the rotary shaft 4 and the outer cylinder 17 , and simultaneously control the rotation of the sector blade 5 and the outer cylinder 17 through the rotation of the rotary shaft 4 .

[0051] The linkage gear set is arranged on the outside of the fixed ring 7, which includes a gear ring 8 connected to the fixed ring 7. The gear ring 8 is sleeved on the outside of the fixed ring 7 and fixedly connected to the fixed ring 7. When the fixed ring 7 rotates, the gear ring 8 also rotates synchronously.

[0052] A linkage shaft 10, a first gear 9, and a second gear 11 are also provided on the outside of the gear ring 8. The linkage shaft 10 is rotatably connected to the sidewall of the well. The first gear 9 is sleeved on the upper portion of the linkage shaft 10, and the second gear 11 is sleeved on the lower portion of the linkage shaft 10. The first gear 9 meshes with the gear ring 8. When the first gear 9 rotates, it drives the linkage shaft 10 and the second gear 11 to rotate synchronously. The outer surface of the second gear 11 includes a toothed portion and a smooth portion, wherein the central angle corresponding to the toothed portion is less than 180°.

[0053] The second gear 11 is connected to the linkage gear sleeve on the outer cylinder 17. The linkage gear sleeve includes a connecting ring 13 and an arcuate rack 14. The arcuate rack 14 is located outside the connecting ring 13 and has a central angle less than 45°. The arcuate rack 14 is used to mesh with the teeth of the second gear 11. The central angle of the arcuate rack 14 corresponds to the central angle of the teeth of the second gear 11.

[0054] Second gear 11 rotates until its teeth mesh with arcuate rack 14. Second gear 11 continues to rotate, driving outer cylinder 17 to rotate, aligning the through-hole of outer cylinder 17 with the flow hole 18 of inner cylinder 16, connecting the inner cavity of inner cylinder 16 with the buffer zone. When the teeth of second gear 11 separate from arcuate rack 14, a gap exists between the smooth portion of second gear 11 and connecting ring 13. Without the driving force acting on outer cylinder 17, it is pulled by return torsion spring 12, causing it to rotate in the opposite direction to its reset state. This is until second gear 11 completes its next rotation, driving outer cylinder 17 to rotate again.

[0055] There are two arc-shaped racks 14 symmetrically arranged on the connecting ring 13 ; the central angle of the arc-shaped racks 14 is 30°.

[0056] Specifically, the linkage gear sets are provided on both sides of the fixed ring 7, and the second gears 11 of the two linkage gear sets are connected to the arc-shaped racks 14 on both sides of the outer cylinder 17 in a one-to-one correspondence. The two linkage gear sets are symmetrically arranged to improve the rotation stability of the fixed ring 7 and the outer cylinder 17.

[0057] In some possible embodiments, see Figure 5 A connecting cavity is provided between the main well 1 and the auxiliary well, and a conducting component is provided in the connecting cavity. The conducting component connects the rotation drive component and the rotating shaft 27, and is used to drive the rotating shaft 27 to rotate; the conducting component includes a transmission gear 29 and a passive gear 30, the transmission gear 29 is rotatably connected in the connecting cavity, and the passive gear 30 is sleeved on the rotating shaft 27; the transmission gear 29 simultaneously engages the first gear 9 and the passive gear 30.

[0058] The upper portions of the main shaft 1 and the auxiliary shaft are connected by a connecting cavity. A transmission assembly is located within the connecting cavity, interlocking the rotating shaft 4 and the rotating shaft 27. The transmission assembly includes a transmission gear 29 and a driven gear 30, which are rotatably connected at the upper and lower ends of the connecting cavity. The transmission gear 29 meshes with the driven gear 30.

[0059] The driven gear 30 is sleeved on the rotating shaft 27 and rotates synchronously with the rotating shaft 27. The transmission gear 29 is meshed with the side of the first gear 9 away from the fixing ring 7.

[0060] When the rotating shaft 4 rotates, the fixed ring 7 and the gear ring 8 rotate, and then the first gear 9 rotates. The first gear 9 engages with the transmission gear 29 to drive the transmission gear 29 to rotate, and drives the passive gear 30 and the rotating shaft 27 to rotate, so as to drive the crushing tool to rotate and cut.

[0061] The rotating shaft 4 is connected to a variable speed motor, and the rotation speed of the rotating shaft 4 and the rotating shaft 27 can be changed by changing the motor speed to adapt to different rainfall requirements.

[0062] In some possible embodiments, see Figure 1 and Figure 5 A receiving ring is provided at the top of the inner tube 16, and the edge of the receiving ring is fitted on the inner wall of the main well 1; an arc-shaped connecting groove is provided at the lower end of the receiving ring, and the upper end of the outer tube 17 is slidably connected in the arc-shaped connecting groove.

[0063] The top of the inner cylinder 16 is provided with an outwardly folded edge, forming a receiving ring, the edge of which fits against the inner wall of the main shaft 1. The lower end of the receiving ring is provided with an arcuate connecting groove that matches the top of the outer cylinder 17, ensuring that the outer cylinder 17 can only rotate along the arcuate connecting groove during rotation, thereby improving the stability of the outer cylinder 17.

[0064] The lower end of the outer cylinder 17 is attached to the screening base 21 and is slidably matched with the upper end surface of the screening base 21 .

[0065] Optionally, a shielding plate 15 is provided above the buffer zone. The shielding plate 15 is annular, with its outer edge fixed to the inner wall of the main shaft 1 and its inner edge slidably engaged with the outer wall of the outer cylinder 17. The shielding plate 15 is located between the through hole and the second gear 11, shielding the second gear 11 and reducing moisture in the area of ​​the second gear 11, thereby ensuring the service life of the second gear 11 and the first gear 9.

[0066] The linkage shaft 10 passes through the receiving ring and is rotatably connected to the receiving ring by means of a bearing. The first gear 9 is located above the receiving ring, and the second gear 11 is located below the receiving ring. The fixed end of the return torsion spring 12 is connected to the side wall of the main shaft 1 or to the receiving ring.

[0067] Optionally, a stirring assembly is sleeved on the outer side of the rotating shaft 4 and is located in the inner cavity of the inner cylinder 16. When the rotating shaft 4 rotates, the stirring assembly rotates accordingly to stir the rainwater in the inner cylinder 16 and prevent impurities from being deposited on the screening base 21. The stirring assembly includes a crossbar 19 connected to the rotating shaft 4 and a longitudinal rod 20 connected below the crossbar 19.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Road and bridge drainage structure, characterized in that: The invention comprises a main well (1) and an auxiliary well, wherein a rainwater hole (3) is provided on the top cover (2) of the main well (1); a screening base (21) with a drainage hole (23) is provided at the lower part of the main well (1); the screening base (21) divides the main well (1) into a screening chamber and a flow chamber; an inner cylinder (16) and an outer cylinder (17) are provided at the upper end of the screening base (21); a plurality of flow holes (18) are provided at intervals in the circumferential direction of the inner cylinder (16); the outer cylinder (17) rotates to switch the flow holes (18) The outer side of the outer cylinder (17) has an annular buffer zone; a filter plate (26) is provided in the auxiliary well, and the filter plate (26) divides the inner cavity of the auxiliary well into a crushing chamber and a drainage chamber, the crushing chamber is connected to the buffer zone of the screening chamber via a drainage hole (25), and the drainage chamber is connected to the flow chamber via a drainage hole (24); a crushing tool is provided in the crushing chamber, and the crushing tool includes a rotating shaft (27) and a cutting blade (28) provided on the circumference of the rotating shaft (27); A primary crushing assembly is provided in the screening chamber, the primary crushing assembly comprising a rotating shaft (4) arranged along the axial direction of the main well (1) and a rotating disk provided on the rotating shaft (4); the rotating disk comprises a fixed ring (7) and a plurality of sector blades (5) uniformly fixed on the inner side of the fixed ring (7), with a flow channel formed between two adjacent sector blades (5); The lower portion of the outer cylinder (17) is also provided with a through hole adapted to the flow hole (18), and the upper portion of the outer cylinder (17) is connected to a rotation drive assembly, which is used to drive the outer cylinder (17) to rotate horizontally to drive the through hole to connect with or cover the flow hole (18); The rotary drive assembly comprises a linkage gear set, a linkage gear sleeve and a reset torsion spring (12); The linkage gear set comprises a gear ring (8), a linkage shaft (10), a first gear (9), and a second gear (11); the gear ring (8) is sleeved on the circumference of the fixed ring (7); the linkage shaft (10) is rotatably connected to the well wall of the main well (1); the first gear (9) and the second gear (11) are both sleeved on the linkage shaft (10); the first gear (9) is meshed with the gear ring (8); the second gear (11) is located below the first gear (9); the second gear (11) comprises a toothed portion and a smooth portion; The linkage gear sleeve comprises a connecting ring (13) and an arc-shaped rack (14), wherein the connecting ring (13) is sleeved on the circumference of the outer cylinder (17), the arc-shaped rack (14) is arranged outside the connecting ring (13), the central angle of the arc-shaped rack (14) is less than 45 degrees, and the arc-shaped rack (14) is meshed with the tooth portion of the second gear (11); A reset torsion spring (12) is sleeved on the outside of the linkage shaft (10), one end of the reset torsion spring (12) is fixedly connected to the well wall of the main well (1), and the other end of the reset torsion spring (12) is fixedly connected to the wall of the outer cylinder (17).

2. The road and bridge drainage structure according to claim 1, characterized in that: The screening base (21) is conical, and a downwardly recessed drainage groove (22) is provided on the edge of the screening base (21). The drainage groove (22) is located outside the outer cylinder (17) and is connected to the drainage hole (25).

3. The road and bridge drainage structure according to claim 2, characterized in that: The side of the drainage groove (22) close to the drainage hole (25) is lower than the side of the drainage groove (22) away from the drainage hole (25).

4. The road and bridge drainage structure according to claim 1, characterized in that: The front ends of the sector blades (5) are provided with blade portions, and the upper ends of the sector blades (5) are provided with crushing spikes (6); the crushing spikes (6) face upward, and the ends of the crushing spikes (6) are attached to the lower end of the top cover (2).

5. The road and bridge drainage structure according to claim 1, characterized in that: There are two arc-shaped racks (14), and the two arc-shaped racks (14) are symmetrically arranged on the connecting ring (13); the central angle of the arc-shaped racks (14) is 30°.

6. The road and bridge drainage structure according to claim 1, characterized in that: A connecting cavity is provided between the main well (1) and the auxiliary well, wherein a conducting component is provided in the connecting cavity, wherein the conducting component is connected to the rotation drive component and the rotating shaft (27) and is used to drive the rotating shaft (27) to rotate; the conducting component comprises a transmission gear (29) and a driven gear (30), wherein the transmission gear (29) is rotatably connected in the connecting cavity, and the driven gear (30) is sleeved on the rotating shaft (27); and the transmission gear (29) is simultaneously engaged with the first gear (9) and the driven gear (30).

7. The road and bridge drainage structure according to claim 1, characterized in that: A receiving ring is provided at the top of the inner cylinder (16), and the edge of the receiving ring is fitted on the inner wall of the main well (1); an arc-shaped connecting groove is provided at the lower end of the receiving ring, and the upper end of the outer cylinder (17) is slidably connected in the arc-shaped connecting groove.

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