CN116354473A

CN116354473A - Urban road sewage treatment pipeline system

Info

Publication number: CN116354473A
Application number: CN202310330576.3A
Authority: CN
Inventors: 李龙; 陈曹军; 李明; 李密
Original assignee: Hunan Lvlin Construction Group Co ltd
Current assignee: Hunan Lvlin Construction Group Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-06-30

Abstract

The application relates to the field of sewage treatment, in particular to an urban road sewage treatment pipeline system, which comprises a cavity, wherein a medicine adding port, a water inlet, a discharge port and a water outlet are formed in the cavity; the sealing plate is arranged above the filter plate, and the sealing plate and the filter plate divide the cavity into a reaction bin, a filter bin and a water outlet bin from top to bottom; a gap is reserved between one end of the sealing plate and the side wall of the cavity to form a communication port; the cavity is also internally provided with an opening and closing device which is used for opening and closing the water inlet, the discharge port and the communication port; a stirring device is arranged in the reaction bin. The utility model provides a municipal road sewage treatment pipe-line system stirs the mixture at sewage reaction's in-process to filter the mixture after the reaction, improved treatment effeciency.

Description

Urban road sewage treatment pipeline system

Technical Field

The application relates to the field of sewage treatment, in particular to an urban road sewage treatment pipeline system.

Background

The road sewage is domestic sewage in urban areas, and comprises sewage and a large amount of road construction sewage, and the direct discharge is not only easy to pollute the environment, but also can cause the waste of water resources, so that the road sewage can be discharged after being treated.

Treatment of sewage generally includes primary filtration and drug treatment. Firstly, the sewage in the pipeline is subjected to primary filtration to remove solid impurities in the sewage, then the filtered sewage is introduced into a sedimentation tank, medicines capable of reacting with harmful components are added into the sedimentation tank, floccules or solid impurities can be generated in the sewage after the reaction, the impurities are deposited at the bottom of the sedimentation tank through sedimentation, and the upper layer is an available water resource.

For the related art, in order to improve the reaction effect, a stirring device is usually disposed in the reaction tank to make the medicine fully contact with the sewage, but the available water is separated by precipitation from the reacted mixture, resulting in lower sewage treatment efficiency.

Disclosure of Invention

In order to improve the sewage treatment efficiency, the application provides an urban road sewage treatment pipeline system.

The application provides an urban road sewage treatment pipe-line system adopts following technical scheme:

the urban road sewage treatment pipeline system comprises a cavity, wherein a medicine adding port, a water inlet, a discharging port and a water outlet are formed in the cavity, a sealing plate and a filter plate are arranged in the cavity, one end of the filter plate, which is opposite to the discharging port, is rotationally connected with the side wall of the cavity, and the other end of the filter plate can be butted with the discharging port; the sealing plate is arranged above the filter plate, the cavity is divided into a reaction bin, a filter bin and a water outlet bin from top to bottom by the sealing plate and the filter plate, the water inlet is communicated with the reaction bin, and the water outlet is communicated with the water outlet bin;

a gap is reserved between one end of the sealing plate and the side wall of the cavity to form a communication port; the cavity is internally provided with an opening and closing device which is used for opening and closing the water inlet, the discharge port and the communication port;

and a stirring device is arranged in the reaction bin.

By adopting the technical scheme, the water inlet is opened by the opening and closing device, and the communication port is closed. And then introducing the sewage in the pipeline into the cavity, and adding a reaction medicament into the reaction bin through the medicament adding port so as to enable the sewage to react with the medicament. Simultaneously, the stirring device is started to stir the mixture in the reaction bin, so that the medicine diffusion speed is accelerated, and meanwhile, the contact uniformity of the medicine and sewage is improved, so that the sewage treatment efficiency is improved.

After the reaction is finished, the opening and closing device closes the water inlet to prevent sewage from entering the cavity. The communication port is opened, the discharging port is closed to prevent sewage from directly flowing to the discharging port, the reacted mixture can flow into the filtering bin through the communication port, impurities in the mixture are filtered out through the filtering plate, and then usable water can pass through the filtering holes on the filtering plate, flow into the water outlet bin and be discharged through the water outlet.

When the mixture in the reaction bin is discharged, the water inlet is opened again, the communication port is closed, the discharge port is opened simultaneously, the filter plate is rotated to enable the filter plate to incline downwards, the lower end of the filter plate is in butt joint with the discharge port, impurities slide to the discharge port under the action of gravity, and then the impurities on the filter plate are poured into the discharge port, so that the impurities can be cleaned.

The mode can enable the sewage to react, filter and treat impurities in a partitioning way, the treatment process is continuously carried out, the sedimentation is not required to be carried out independently after the reaction is finished, the treatment efficiency is improved, and the occupied area of equipment is small.

Optionally, the stirring device comprises a stirring shaft, a stirring rod and a rotation driving assembly for driving the stirring shaft to rotate, and the stirring rod is arranged on the stirring shaft.

Through adopting above-mentioned technical scheme, rotate drive assembly and drive the (mixing) shaft rotation, the puddler simultaneously rotates along with the (mixing) shaft is synchronous, can realize the stirring effect to medicine and sewage.

Optionally, the rotation drive assembly includes first gear, second gear and driving piece, first gear and second gear all rotate to be connected on the cavity, first gear and second gear meshing, coaxial fixed connection of second gear and (mixing) shaft, driving piece is used for driving first gear to rotate.

Through adopting above-mentioned technical scheme, the driving piece drives first gear rotation, through the meshing of gear, and first gear drives the second gear rotation, then the (mixing) shaft rotates along with the second gear is synchronous to drive the puddler and rotate, in order to realize the stirring effect to the mixture.

Optionally, the driving member includes a motor, and the motor is in transmission connection with the first gear.

Through adopting above-mentioned technical scheme, the motor can drive first gear and stably rotate.

Optionally, the rotation drive assembly still includes rotation piece, third gear, dwang and solid fixed ring, rotation piece and third gear all rotate and connect on the cavity, gu fixed ring is equipped with a plurality of and the interval sets up on the (mixing) shaft, leaves between two adjacent gu fixed rings and can supply the inserted clearance of protruding tooth on the third gear, the one end and the eccentric rotation of third gear of dwang are connected, and the other end and the eccentric rotation of rotation piece are connected.

By adopting the technical scheme, the rotating part is driven to rotate, so that the rotating rod eccentrically rotates and drives the third gear to reciprocally rotate; the rotating piece can drive the third gear to rotate in a reciprocating manner in the continuous rotation process, so that the forward and reverse rotation of the driving source is not required to be regulated, the operation is convenient, the operation is stable, and the abrasion to a machine is reduced. In the process of rotation of the third gear, the protruding teeth can be inserted into gaps among the plurality of fixed rings to drive the fixed rings to reciprocate up and down, so that the stirring shaft can also reciprocate up and down stably in the stirring process, the mixture with different heights is stirred, and the stirring efficiency is improved.

Optionally, the rotation driving assembly further comprises a worm, the worm is fixedly connected with the first gear coaxially, the rotation piece is a worm wheel, and the worm wheel is meshed with the worm.

Through adopting above-mentioned technical scheme, when the driving piece drives first gear rotation, the worm rotates along with first gear synchronization, through the meshing of worm wheel and worm, drives the worm rotation to realize driving the reciprocates of (mixing) shaft. And the rotation of the worm wheel does not need to be additionally provided with a driving source, so that the control is convenient, and the electric power resource is saved.

Optionally, the opening and closing device comprises a first sealing plate, a second sealing plate, a synchronizing rod and a connecting rod, wherein the first sealing plate is slidably connected to the side wall of the cavity for opening and closing the water inlet, the second sealing plate is slidably connected to the side wall of the cavity for opening and closing the communication port, two ends of the synchronizing rod are respectively connected with the first sealing plate and the second sealing plate, and two ends of the connecting rod are respectively hinged with the second sealing plate and the filter plate; the opening and closing device further comprises a sliding driving assembly for driving the first sealing plate to slide.

Through adopting above-mentioned technical scheme, after the mixture reaction in the reaction storehouse is a period, the slip drive subassembly drives first sealing plate and second sealing plate synchronous slip, then when first sealing plate shutoff water inlet, the second sealing plate is in the top of intercommunication mouth, and under the drive effect of connecting rod, the filter is in the horizontality and is located the upper end of discharge gate, can realize the shutoff of water inlet simultaneously, the opening of intercommunication mouth and the shutoff of discharge gate, be convenient for introduce the mixture after the reaction in the filtration storehouse and filter.

After the filtration is finished, the first sealing plate and the second sealing plate are driven to slide downwards, and then the filter plate rotates to be in butt joint with the discharge hole to clean sundries. Simultaneously, the second sealing plate seals the communication port, and the first sealing plate is far away from the water inlet, so that water inflow is realized.

Through the connection of synchronizing lever and connecting rod, the slip drive assembly can realize opening and close of water inlet, discharge gate and delivery port in step, and the operation of being convenient for.

Optionally, the sliding drive assembly includes reciprocating screw, actuating lever and rotation wheel, rotation wheel rotates to be connected on the cavity, the both ends of actuating lever are connected with reciprocating screw and first sealing plate respectively, rotation wheel is connected with reciprocating screw's screw-nut.

Through adopting above-mentioned technical scheme, after the mixture in the reaction storehouse reacts a period, drive the rotation wheel and begin to rotate, because the screw-nut of reciprocating screw is connected to the rotation wheel, then can drive reciprocating screw and upwards remove, and then drive first sealing plate through the actuating lever and rise, when the screw thread of reciprocating screw lower extreme and screw-nut cooperation, the water inlet is shutoff, the intercommunication mouth is opened and the discharge gate is shutoff. When the filtration is finished, the rotating wheel is driven to rotate again, and at the moment, the screw rod nut drives the reciprocating screw rod to move downwards, so that the water inlet is opened again, the communicating port is plugged, and the discharging port is opened. The reciprocating screw rod is arranged to enable the first sealing plate to ascend and descend without changing the rotation direction of the rotating wheel.

Optionally, the sliding drive assembly further includes an incomplete gear and a speed reduction unit, the speed reduction unit is arranged between the rotating wheel and the first gear and is used for reducing the speed of the first gear, the incomplete gear is in transmission connection with the speed reduction unit, a circle of tooth grooves are formed in the peripheral wall of the rotating wheel, and the incomplete gear can be meshed with the tooth grooves.

Through adopting above-mentioned technical scheme, when first gear rotates, through reducing gear's transmission, incomplete gear rotates with the rotational speed that is less than first gear to with the intermittent type nature meshing of rotor, and then realize water inlet, discharge gate and delivery port's intermittent type nature and open and close.

In summary, the present application includes one of the following beneficial technical effects:

1. the sewage can be stirred by the stirring device in the process of reacting with the medicine, so that the mixing speed of the medicine and the sewage is increased, and the sewage treatment efficiency is improved; meanwhile, the mixture after reaction is filtered through a filter plate so as to conveniently realize the taking out of usable water;

2. the first sealing plate and the second sealing plate are driven to synchronously move, and the filter plate is driven to rotate, so that the water inlet, the communication port and the discharge port can be opened and closed simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of an open water inlet in an embodiment of the present application;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1, intended to embody the structure of a rotary drive assembly;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

fig. 4 is a schematic overall structure of the water inlet closing state in the embodiment of the present application.

Reference numerals illustrate: 1. a cavity; 2. a medicine adding port; 3. a water inlet; 4. a discharge port; 5. a water outlet; 6. a pipe; 7. sealing plate; 8. a filter plate; 9. a reaction bin; 10. a filtering bin; 11. a water outlet bin; 12. a communication port; 13. an opening and closing device; 14. a stirring device; 15. a stirring shaft; 16. a stirring rod; 17. a first gear; 18. a second gear; 19. a driving member; 20. a motor; 21. a rotating member; 22. a third gear; 23. a rotating lever; 24. a fixing ring; 25. a worm; 26. a worm wheel; 27. a first rotating lever; 28. a second rotating rod; 29. a first sealing plate; 30. a second sealing plate; 31. a synchronizing lever; 32. a connecting rod; 33. a reciprocating screw rod; 34. a driving rod; 35. a rotating wheel; 36. an incomplete gear; 37. a speed reducing unit; 38. a first reduction gear; 39. and a second speed reducing wheel.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses urban road sewage treatment pipeline system, refer to fig. 1, and include cavity 1, in this embodiment, cavity 1 is square cavity. The medicine adding port 2, the water inlet 3, the discharge port 4 and the water outlet 5 are formed in the cavity 1, the medicine adding port 2 is formed in the top of the cavity 1, the water inlet 3 is connected with the pipeline 6, the water inlet 3 and the discharge port 4 are formed in the same side wall of the cavity 1, and the water outlet 5 is formed in the bottom of the cavity 1. The sealing plate 7 and the filter plate 8 are arranged in the cavity 1, one end of the filter plate 8 opposite to the discharge hole 4 is rotationally connected with the side wall of the cavity 1, and the other end can be abutted to the discharge hole 4. The sealing plate 7 is horizontally arranged above the filter plate 8, the sealing plate 7 and the filter plate 8 divide the cavity 1 into a reaction bin 9, a filter bin 10 and a water outlet bin 11 from top to bottom, the water inlet 3 is communicated with the reaction bin 9, and the water outlet 5 is communicated with the water outlet bin 11.

A certain gap is reserved between one end of the sealing plate 7, which is close to the discharge hole 4, and the side wall of the cavity body 1, so that a communication hole 12 is formed. The cavity 1 is also internally provided with an opening and closing device 13, and the opening and closing device 13 is used for opening and closing the water inlet 3, the discharge port 4 and the communication port 12.

The reaction bin 9 is internally provided with a stirring device 14, the stirring device 14 comprises a stirring shaft 15, a stirring rod 16 and a rotation driving assembly for driving the stirring shaft 15 to rotate, and the stirring rod 16 is arranged on the stirring shaft 15.

Firstly, the water inlet 3 is opened, the communication port 12 is closed, and at the moment, one end of the filter plate 8 is positioned at the upper end of the discharge port 4. The sewage in the pipeline 6 is introduced into the reaction bin 9, and the medicine is poured from the medicine adding port 2. Then the stirring device 14 is started to stir the medicine and the sewage in the reaction bin 9, so that the mixing of the medicine and the sewage is accelerated, and the reaction speed is accelerated. When the mixture in the reaction bin 9 reacts for a period of time, the opening and closing device 13 is used for opening the communication port 12, closing the water inlet 3 and driving the filter plate 8 to be horizontal, the mixture can flow into the filter bin 10 through the communication port 12, then the mixture is filtered by the filter plate 8, impurities are left on the filter plate 8, and water can flow into the water outlet bin 11 through the filter holes on the filter plate 8 and finally flows out through the water outlet 5. When the mixture in the reaction bin 9 is filtered, the opening and closing device 13 is started again, the communication port 12 is closed, the water inlet 3 is opened again, untreated sewage is introduced into the reaction bin 9, and the reaction is carried out again. At this time, the filter plate 8 is rotated, so that the lower end of the filter plate 8 is in butt joint with the discharge port 4, and impurities on the filter plate 8 can be poured out of the discharge port 4 under the action of gravity, so that the impurities are cleaned.

Referring to fig. 1 and 2, the rotation driving assembly includes a first gear 17, a second gear 18 and a driving member 19, the first gear 17 and the second gear 18 are both rotatably connected to the top of the cavity 1, the stirring shaft 15 is fixedly connected to the second gear 18 coaxially, and the first gear 17 is meshed with the second gear 18. The driving member 19 is in transmission connection with the first gear 17, in this embodiment, the driving member 19 is a motor 20, and an output shaft of the motor 20 is fixedly connected with the first gear 17 coaxially. Through the meshing of the gears, the first gear 17 can also drive the second gear 18 to rotate in the process of rotating, so as to drive the stirring shaft 15 and the stirring rod 16 to rotate.

The rotary drive assembly further comprises a rotary member 21, a third gear 22, a rotary lever 23, a stationary ring 24 and a worm 25. The worm 25 is fixedly connected to the first gear 17 coaxially, in this embodiment the rotating member 21 is a worm wheel 26, and the worm wheel 26 is rotatably connected to the top of the cavity 1 and is engaged with the worm 25. The fixed ring 24 is fixedly connected with the stirring shaft 15 coaxially, and a plurality of fixed rings 24 are uniformly arranged on the stirring shaft 15 at intervals. The third gear 22 is rotatably connected in the cavity 1, and a gap for inserting the protruding teeth on the third gear 22 is reserved between two adjacent fixing rings 24. The worm wheel 26 is hinged with a first rotating rod 27, the third gear 22 is hinged with a second rotating rod 28, one end of the rotating rod 23 is hinged with one end of the first rotating rod 27 far away from the worm wheel 26, and the other end is hinged with one end of the second rotating rod 28 far away from the worm wheel 26.

During the rotation of the first gear 17, the worm 25 drives the worm 25 to rotate continuously, and the third gear 22 rotates reciprocally through the transmission of the first rotating rod 27, the rotating rod 23 and the second rotating rod 28. In the process of rotating the third gear 22, the protruding teeth are inserted between the adjacent fixed rings 24 one by one, so as to drive the stirring shaft 15 to reciprocate up and down, and realize the reciprocating motion of the stirring shaft 15 while rotating.

Referring to fig. 1, the opening and closing device 13 includes a first sealing plate 29, a second sealing plate 30, a synchronizing rod 31, a connecting rod 32, and a sliding driving assembly. The first sealing plate 29 is slidably connected to the side wall of the cavity 1 for opening and closing the water inlet 3, the second sealing plate 30 is slidably connected to the side wall of the cavity 1 for opening and closing the communication port 12, and the first sealing plate 29 is located above the second sealing plate 30. Both ends of the synchronizing rod 31 are respectively connected with the first sealing plate 29 and the second sealing plate 30, and both ends of the connecting rod 32 are respectively hinged with the second sealing plate 30 and the filter plate 8. The sliding driving assembly is used for driving the first sealing plate 29 to slide.

Referring to fig. 1 and 3, the sliding driving assembly includes a reciprocating screw 33, a driving rod 34, a rotating wheel 35, an incomplete gear 36, and a reduction unit 37. The rotating wheel 35 is rotatably connected to the cavity 1, one end of the driving rod 34 is rotatably connected to the reciprocating screw 33, and the other end is rotatably connected to the first sealing plate 29. The rotating wheel 35 is coaxially provided with a through hole for the reciprocating screw 33 to pass through, and the rotating wheel 35 is connected with a screw nut of the reciprocating screw 33. The incomplete gear 36 is rotatably connected to the top of the cavity 1, a circle of tooth grooves are formed in the peripheral wall of the rotating wheel 35, and the incomplete gear 36 can be meshed with the tooth grooves. In this embodiment, the speed reducing unit 37 includes a first speed reducing wheel 38 and a second speed reducing wheel 39, the first speed reducing wheel 38 is connected to the same shaft as the first gear 17, the second speed reducing wheel 39 is connected to the same shaft as the incomplete gear 36, and the first speed reducing wheel 38 is meshed with the second speed reducing wheel 39. The radius of the first reduction gear 38 is smaller than the radius of the first gear 17, and the radius of the second reduction gear 39 is larger than the radius of the first reduction gear 38.

The first gear 17 rotates to drive the first reduction gear 38, the second reduction gear 39 and the incomplete gear 36 to rotate, and in the process of rotating the incomplete gear 36, the incomplete gear 36 intermittently drives the rotating wheel 35 to rotate. The reciprocating screw 33 can reciprocate up and down with the rotation of the rotating wheel 35 by the driving action of the screw nut. The incomplete gear 36 rotates one turn, so that the moving distance of the reciprocating screw 33 is equal to the opening length of the threads on the reciprocating screw 33. Then when the reciprocating screw 33 moves upwards once, the first sealing plate 29 and the second sealing plate 30 move upwards synchronously and drive the filter plate 8 to rotate upwards, the first sealing plate 29 seals the water inlet 3 to prevent water from entering, the second sealing plate 30 is away from the communication port 12, so that the mixture in the reaction bin 9 flows into the filter bin 10 to be filtered, one end of the filter plate 8 is positioned at the upper end of the discharge port 4 to prevent the mixture from directly flowing to the discharge port 4, and smooth filtering is ensured. The incomplete gear 36 continues to rotate and is meshed with the rotating wheel 35 again, so that the reciprocating screw 33 moves downwards, the first sealing plate 29 moves downwards and the water inlet 3 is opened; the second sealing plate 30 moves downwards and seals the communication port 12 to prevent the mixture from entering the filter bin 10 so as to ensure the full reaction of the sewage and the medicine in the reaction bin 9; the filter plate 8 rotates downwards and is in butt joint with the discharge hole 4. The impurities on the filter plate 8 are poured out.

The implementation principle of the embodiment of the application is as follows: first, the first sealing plate 29 is held at the lower end of the water inlet 3, and then the sewage in the pipe 6 is introduced into the reaction chamber 9, and the medicine is added into the reaction chamber 9. When the motor 20 is started, the first gear 17 and the second gear 18 start to rotate, the stirring shaft 15 and the stirring rod 16 synchronously rotate, and the mixture in the reaction bin 9 is stirred, so that the reaction efficiency is improved.

During rotation, the incomplete gear 36 rotates at a lower rotational speed than the first gear 17, and then meshes with the rotating wheel 35, driving the reciprocating screw 33 to move upward. The first sealing plate 29 moves upward to seal the water inlet 3 and prevent water from entering. The second sealing plate 30 moves upward to open the communication port 12 so that the reaction chamber 9 is in communication with the filtration chamber 10, so that the mixture in the reaction chamber 9 enters the filtration chamber 10. At this time, the filter plate 8 is driven by the connecting rod 32 to rotate upwards and is positioned at the upper end of the discharge hole 4, so as to filter the mixture. The filtered usable water enters the water outlet bin 11 and flows out through the water outlet 5, and impurities are left on the filter plate 8 for accumulation.

The first gear 17 continues to rotate, the incomplete gear 36 is meshed with the rotating wheel 35 again, and the rotating wheel 35 drives the reciprocating screw 33 to move downwards. The first sealing plate 29 moves downwards to open the water inlet 3, so that sewage can enter the reaction bin 9 conveniently. The second sealing plate 30 moves downwards and seals the communication port 12, preventing the mixture in the reaction chamber 9 from entering the filter chamber 10. The filter plate 8 rotates downwards, and the lower end is in butt joint with the discharge hole 4, so that impurities on the filter plate 8 can slide to the discharge hole 4 to be discharged.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An urban road sewage treatment pipeline system which is characterized in that: the novel chemical dosing device comprises a cavity (1), wherein a chemical dosing port (2), a water inlet (3), a discharge port (4) and a water outlet (5) are formed in the cavity (1), a sealing plate (7) and a filter plate (8) are arranged in the cavity (1), one end, opposite to the discharge port (4), of the filter plate (8) is rotationally connected with the side wall of the cavity (1), and the other end can be abutted to the discharge port (4); the sealing plate (7) is arranged above the filter plate (8), the sealing plate (7) and the filter plate (8) divide the cavity (1) into a reaction bin (9), a filter bin (10) and a water outlet bin (11) from top to bottom, the water inlet (3) is communicated with the reaction bin (9), and the water outlet (5) is communicated with the water outlet bin (11);

a gap is reserved between one end of the sealing plate (7) and the side wall of the cavity (1) to form a communication port (12); an opening and closing device (13) is further arranged in the cavity (1), and the opening and closing device (13) is used for opening and closing the water inlet (3), the discharge port (4) and the communication port (12);

a stirring device (14) is arranged in the reaction bin (9).

2. An urban road sewage treatment piping system according to claim 1, characterized in that: the stirring device (14) comprises a stirring shaft (15), a stirring rod (16) and a rotation driving assembly for driving the stirring shaft (15) to rotate, and the stirring rod (16) is arranged on the stirring shaft (15).

3. An urban road sewage treatment piping system according to claim 2, characterized in that: the rotary driving assembly comprises a first gear (17), a second gear (18) and a driving piece (19), wherein the first gear (17) and the second gear (18) are both rotationally connected to the cavity (1), the first gear (17) is meshed with the second gear (18), the second gear (18) is fixedly connected with the stirring shaft (15) coaxially, and the driving piece (19) is used for driving the first gear (17) to rotate.

4. An urban road sewage treatment piping system according to claim 3, characterized in that: the driving part (19) comprises a motor (20), and the motor (20) is in transmission connection with the first gear (17).

5. An urban road sewage treatment piping system according to claim 3, characterized in that: the rotary driving assembly further comprises a rotary part (21), a third gear (22), a rotary rod (23) and a fixed ring (24), wherein the rotary part (21) and the third gear (22) are both rotationally connected to the cavity (1), the fixed ring (24) is provided with a plurality of fixed rings and is arranged on the stirring shaft (15) at intervals, a gap for inserting protruding teeth on the third gear (22) is reserved between every two adjacent fixed rings (24), one end of the rotary rod (23) is eccentrically rotationally connected with the third gear (22), and the other end of the rotary rod is eccentrically rotationally connected with the rotary part (21).

6. An urban road sewage treatment piping system according to claim 5, wherein: the rotation driving assembly further comprises a worm (25), the worm (25) is fixedly connected with the first gear (17) in a coaxial mode, the rotation piece (21) is a worm wheel (26), and the worm wheel (26) is meshed with the worm (25).

7. An urban road sewage treatment piping system according to claim 1, characterized in that: the opening and closing device (13) comprises a first sealing plate (29), a second sealing plate (30), a synchronizing rod (31) and a connecting rod (32), wherein the first sealing plate (29) is connected to the side wall of the cavity (1) in a sliding manner to open and close the water inlet (3), the second sealing plate (30) is connected to the side wall of the cavity (1) in a sliding manner to open and close the communication port (12), two ends of the synchronizing rod (31) are respectively connected with the first sealing plate (29) and the second sealing plate (30), and two ends of the connecting rod (32) are respectively hinged with the second sealing plate (30) and the filter plate (8); the opening and closing device (13) further comprises a sliding driving assembly for driving the first sealing plate (29) to slide.

8. An urban road sewage treatment piping system according to claim 7, wherein: the sliding driving assembly comprises a reciprocating screw rod (33), a driving rod (34) and a rotating wheel (35), wherein the rotating wheel (35) is rotationally connected to the cavity (1), two ends of the driving rod (34) are respectively connected with the reciprocating screw rod (33) and the first sealing plates (29) (7), and the rotating wheel (35) is connected with a screw nut of the reciprocating screw rod (33).

9. An urban road sewage treatment piping system according to claim 8, wherein: the sliding driving assembly further comprises an incomplete gear (36) and a speed reduction unit (37), the speed reduction unit (37) is arranged between the rotating wheel (35) and the first gear (17) and used for reducing the first gear (17), the incomplete gear (36) is in transmission connection with the speed reduction unit (37), a circle of tooth grooves are formed in the peripheral wall of the rotating wheel (35), and the incomplete gear (36) can be meshed with the tooth grooves.