Integrated filtering device of road drainage system

Abstract

An integrated filtering device of a road drainage system comprises a sewer well, an inclined flow guide bottom wall and a contraction inner wall are arranged in the sewer well, multiple sets of through holes are formed in the side wall of the contraction inner wall, the contraction inner wall forms an independent space below the inclined flow guide bottom wall, and an external interception well grate is arranged at the top opening end of the sewer well. A drainage pipeline is arranged at the bottom of the sewer well, a self-cleaning intercepting mechanism matched with a water flow path in the sewer well is arranged at the joint position of the sewer well and the drainage pipeline, an impurity guiding-out mechanism is arranged on the slag discharging side of the self-cleaning intercepting mechanism, a maintenance mechanism is arranged below the impurity guiding-out mechanism, and a monitoring mechanism is arranged in the sewer well. By the adoption of the structure, intercepting and cleaning are efficient and thorough, automatic cleaning is intelligently triggered, monitoring and management are intelligent, energy conservation, environmental protection and sustainability are achieved, maintenance and operation are convenient, the structure is compact, and operation is reliable.

Description

Technical Field

[0001] This invention relates to the field of road drainage technology, and in particular to an integrated filtration device for road drainage systems. Background Technology

[0002] In municipal road drainage systems, manhole covers are crucial structures for preventing road debris from entering sewers, and their daily cleaning currently relies primarily on manual labor. Cleaners must manually remove accumulated leaves, garbage, and other debris from the manhole covers and surrounding areas using tools. Similarly, for the simple grates that may be installed inside the sewers, there is a lack of specialized automated cleaning devices; they are mostly cleaned manually only after significant blockages occur. Only a few large drainage systems employ complex grating cleaning machines, but these devices are bulky and expensive, making them unsuitable for the manhole covers and associated sewers on ordinary roads.

[0003] Existing methods for cleaning impurities, which are primarily manual, have many significant drawbacks: Firstly, manual cleaning is inefficient, especially when a large amount of debris accumulates after rain, making it difficult to complete the cleaning work quickly, which can easily lead to poor drainage and a sudden rise in water level due to rainwater accumulation. Secondly, cleaners need to frequently bend over or go down into wells to work, which is physically demanding and poses a great safety hazard in busy traffic areas. Third, manual cleaning is often not thorough enough, and some small impurities or impurities stuck in the gaps will be missed, which can easily cause blockage of the drainage pipes over time. Fourth, the timeliness of manual cleaning is difficult to guarantee. In many cases, it is only dealt with after the blockage affects drainage, which seriously affects the normal operation of the road drainage system. Fifth, the long-term reliance on manual labor has led to high maintenance costs, increasing the economic burden on municipal management.

[0004] To address the problems existing in the prior art, this invention provides an integrated filtration device for road drainage systems, which enables automatic interception, automatic cleaning, intelligent monitoring, and convenient maintenance of impurities in road drainage, thereby overcoming the drawbacks of low efficiency, high labor intensity, incomplete cleaning, high maintenance costs, and easy pipe blockage caused by manual cleaning. Summary of the Invention The technical problem to be solved by the present invention is to provide an integrated filtration device for road drainage systems that can intercept and clean efficiently and thoroughly, intelligently trigger automatic cleaning, intelligently monitor and manage, be energy-saving, environmentally friendly and sustainable, be easy to maintain and operate, and have a compact structure and reliable operation.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an integrated filtration device for a road drainage system, including a sewer well, wherein the sewer well is provided with an inclined guide bottom wall and a constricting inner wall, the side wall of the constricting inner wall is provided with multiple sets of through holes, the constricting inner wall forms an independent space below the inclined guide bottom wall, the top opening end of the sewer well is provided with an external interception grate, the bottom of the sewer well is provided with a drainage pipe, the connection position between the sewer well and the drainage pipe is provided with a self-cleaning interception mechanism that cooperates with the water flow path inside the sewer well, the slag discharge side of the self-cleaning interception mechanism is provided with an impurity discharge mechanism, the lower part of the impurity discharge mechanism is provided with a maintenance mechanism, and the sewer well is provided with a monitoring mechanism. The self-cleaning interception mechanism includes an interception frame and an upper interception column group and a lower interception column group fixed thereon. The upper interception column group and the lower interception column group have different lengths and their ends are not connected through. A drive mechanism that cooperates with the self-cleaning interception mechanism is provided on one side. The drive mechanism includes a servo motor, a drive disk driven by the servo motor, a drive wheel eccentrically mounted on the drive disk, and a driven frame in contact with the drive wheel. The driven frame is fixedly connected to the interception frame and is used to drive the interception frame to reciprocate horizontally. The monitoring structure includes a buoyancy cylinder installed in a sewer well and a protective box installed on the ground. The buoyancy cylinder is connected to one end of a U-shaped connecting rod, and the other end of the U-shaped connecting rod is connected to a vertical guide block. A trigger seat is provided at the highest horizontal position of the U-shaped connecting rod. A control unit is provided on the top of the inner wall of the protective box. The control unit is equipped with a limit switch that cooperates with the trigger seat. The control unit is electrically connected to the limit switch and the servo motor.

[0006] In a preferred embodiment, the intercepting columns of the upper and lower intercepting column groups are arranged in parallel and spaced apart, and the projection of the suspended end of the upper intercepting column group falls within the projection range of the lower intercepting column group.

[0007] In a preferred embodiment, the drive mechanism further includes a fixed support platform and a support column. The servo motor is mounted on the fixed support platform via a motor mounting bracket, and the fixed support platform and the motor mounting bracket are fixedly connected to both ends of the support column, respectively.

[0008] In a preferred embodiment, the monitoring mechanism further includes a camera, which is mounted on the top of the protective box and faces the self-cleaning interception mechanism. The camera is electrically connected to the control unit.

[0009] In a preferred embodiment, the monitoring mechanism further includes a solar panel installed outside the sewer well, a protective box located on the road surface and containing a control unit, and the solar panel powering the electrical components through the photovoltaic inverter and battery of the control unit. In a preferred embodiment, the maintenance mechanism includes a collection box, a gripping rod fixed to the collection box, and a limiting frame, with the collection box located below the impurity discharge mechanism.

[0010] In a preferred embodiment, the maintenance mechanism further includes a cover, which is placed over the top opening of the limiting frame and flush with the road surface, and has a maintenance operation port.

[0011] In a preferred embodiment, the impurity removal mechanism is located below the independent space formed by the contracted inner wall.

[0012] In a preferred embodiment, the impurity discharge mechanism is an inclined guide plate, the upper end of which is fixedly connected to the bottom end of the constricted inner wall, and the lower end extends to the top of the collection box.

[0013] In a preferred embodiment, the intercepting columns of the upper and lower intercepting column groups are made of stainless steel, with an outer diameter of eight to twelve millimeters and a spacing of fifteen to twenty-five millimeters between adjacent intercepting columns.

[0014] The integrated filtration device for a road drainage system provided by the present invention, by adopting the above-described structure, has the following beneficial effects: (1) It can concentrate and remove impurities at a designated location, effectively avoiding impurity residue. At the same time, the multi-stage interception structure improves the filtration accuracy, prevents impurities from entering the subsequent drainage pipe and causing blockage, and the cleaning process does not affect normal drainage. (2) The rise in water level automatically triggers the limit switch, thereby starting the cleaning program. No manual intervention is required, which greatly reduces the frequency of manual cleaning, reduces maintenance costs and the labor intensity of cleaners; (3) Enable remote monitoring and communication, so that staff can keep abreast of the device's operating status and deal with any abnormalities in a timely manner; (4) The maintenance operation is simple and convenient, which greatly improves the maintenance efficiency and eliminates the need for downhole operations, thus reducing maintenance risks; (5) The overall device has a compact and reasonable structure, which is suitable for the narrow space of road drainage wells. The transmission is simple and reliable, which reduces the risk of failure in humid environments and improves the stability and service life of the device in humid and harsh environments. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the maintenance mechanism structure of the present invention.

[0018] Figure 4 This is a schematic diagram of the self-cleaning interception mechanism of the present invention used to intercept and drain water.

[0019] Figure 5 This is a schematic diagram of the interception frame and its structure according to the present invention.

[0020] Figure 6 This is a schematic diagram of the manhole structure of the present invention.

[0021] Figure 7 This is a schematic diagram of the internal structure and upper part of the monitoring mechanism of the present invention.

[0022] In the diagram: 10. Sewer well; 11. Inclined guide bottom wall; 12. Constricting inner wall; 13. Through hole; 20. External interception grate; 30. Monitoring mechanism; 31. Camera; 32. Solar panel; 33. Protective box; 34. Buoyancy cylinder; 35. Connecting rod; 36. Vertical guide block; 37. Control unit; 38. Limit switch; 39. Trigger seat; 40. Self-cleaning interception mechanism; 41. Interception frame; 42. Upper interception column assembly; 43. Lower interception column assembly; 50. Drive mechanism; 51. Servo motor; 52. Motor mounting base; 53. Fixed support platform; 54. Support column; 55. Drive disk; 56. Drive wheel; 57. Driven frame; 60. Impurity discharge mechanism; 70. Drainage pipe; 80. Maintenance mechanism; 81. Collection box; 82. Grip rod; 83. Limit frame; 84. Cover. Detailed Implementation

[0023] Example 1: like Figure 1-7 An integrated filtration device for a road drainage system includes a drain well 10 for collecting rainwater and impurities from the road surface. The drain well 10 is internally fitted with an inclined guide bottom wall 11 and a constricting inner wall 12. The inclined guide bottom wall 11 guides the water flow to converge in a preset direction. The constricting inner wall 12 encloses and forms a relatively closed cavity. Multiple sets of through holes 13 are provided on its side wall to enable water flow between the inside and outside of the cavity. The constricting inner wall 12 forms an independent space below the inclined guide bottom wall 11. This independent space is used to install matching drive and transmission components to avoid direct water flow from affecting the operational stability of the components. The top opening of the sewer well 10 is fitted with an external interception grate 20, which is used to initially intercept larger debris from the road surface. The bottom of the sewer well 10 is connected to a drainage pipe 70. At the connection point between the sewer well 10 and the drainage pipe 70, there is a self-cleaning interception mechanism 40 that precisely matches the internal water flow path of the sewer well 10. The self-cleaning interception mechanism 40 is used to intercept residual debris in the water flow. On its slag discharge side, there is a corresponding debris discharge mechanism 60, which guides the debris cleaned by the self-cleaning interception mechanism 40 to a designated collection location. Below the debris discharge mechanism 60, there is a corresponding maintenance mechanism 80, which is used to collect debris for subsequent cleaning. The sewer well 10 is also equipped with a monitoring mechanism 30, which is used to monitor the water flow and the operating status of the device in real time.

[0024] The self-cleaning interception mechanism 40 includes an interception frame 41 for mounting the interception components and an upper interception column group 42 and a lower interception column group 43 fixed thereon. The upper interception column group 42 and the lower interception column group 43 are staggered and have different lengths and are not connected at the ends, forming a double-layer interception structure to improve the interception effect. A drive mechanism 50 is provided on one side of the self-cleaning interception mechanism 40 and is driven to move the self-cleaning interception mechanism 40 to achieve the self-cleaning function.

[0025] The drive mechanism 50 includes a power output component servo motor 51, a drive disk 55 driven to rotate by the servo motor 51, a drive wheel 56 eccentrically mounted on the end face of the drive disk 55, and a driven frame 57 that rolls in contact with the drive wheel 56. The driven frame 57 adopts a frame structure, and one side of it is fixedly connected to the interception frame 41. Through the cooperation between the drive wheel and the driven frame, the rotational motion of the servo motor is converted into horizontal reciprocating motion, thereby driving the interception frame 41 to reciprocate horizontally, realizing the self-cleaning action of the interception column assembly.

[0026] The monitoring mechanism 30 includes a buoyancy cylinder 34 installed inside the sewer well 10 and rising and falling with the water level, and a protective box 33 installed on the ground. The buoyancy cylinder 34 is fixedly connected to one end of a U-shaped connecting rod 35, and the other end of the U-shaped connecting rod 35 is slidably engaged with a vertical guide block 36. The vertical guide block 36 is fixed to the inner wall of the sewer well to limit the movement direction of the U-shaped connecting rod and ensure that it rises and falls vertically. A trigger seat 39 is provided at the highest horizontal position of the U-shaped connecting rod 35. A control unit 37 is fixedly provided at the top of the inner wall of the protective box 33. The control unit 37 is provided with a limit switch 38 that cooperates with the trigger seat 39. When the water level rises and drives the buoyancy cylinder to rise to a preset height, the trigger seat 39 contacts the limit switch 38. The control unit 37 is electrically connected to the limit switch 38 and the servo motor 51 to realize automatic control of the drive mechanism.

[0027] In the preferred embodiment, the intercepting columns of the upper intercepting column group 42 and the lower intercepting column group 43 are arranged in a parallel and spaced manner, and the projection of the suspended end of the upper intercepting column group 42 falls into the projection range of the lower intercepting column group 43, forming a gapless interception area to prevent small impurities from leaking between the two intercepting columns.

[0028] In a preferred embodiment, the drive mechanism 50 further includes a fixed support platform 53 and a support column 54 for supporting the power component. The servo motor 51 is mounted on the fixed support platform 53 via a motor mounting base 52. The two ends of the support column 54 are fixedly connected to the fixed support platform 53 and the motor mounting base 52, respectively, forming a stable support structure and improving the stability of the servo motor operation.

[0029] In a preferred embodiment, the monitoring mechanism 30 further includes a camera 31 for image acquisition. The camera 31 is mounted on the top of the protective box 33 and faces the self-cleaning interception mechanism 40. It can collect images of the impurity accumulation and operating status of the interception mechanism in real time. The camera 31 is electrically connected to the control unit 37, and the image data can be transmitted to the control unit for storage or remote transmission.

[0030] In a preferred embodiment, the monitoring mechanism 30 further includes a solar panel 32 for power supply. The solar panel 32 is installed on the road surface outside the sewer well 10. The protective box 33 is located on the road surface and has a built-in control unit 37. The solar panel 32, together with the photovoltaic inverter and battery built into the control unit 37, forms a power supply system to provide stable power to electrical components such as cameras, servo motors, and control units.

[0031] In a preferred embodiment, the maintenance mechanism 80 includes a collection box 81 for collecting impurities, a gripping rod 82 fixedly connected to the collection box 81, and a limiting frame 83 for limiting the collection box. The collection box 81 is located below the impurity discharge mechanism 60 to ensure that the impurities guided by the impurity discharge mechanism can fall accurately into the collection box. The gripping rod 82 facilitates the staff to remove the collection box from the sewer for cleaning.

[0032] In a preferred embodiment, the maintenance mechanism 80 further includes a cover 84 for sealing and protection. The cover 84 is placed over the top opening of the limiting frame 83 and is flush with the road surface to prevent road debris from falling into the collection box. The cover 84 is provided with a maintenance operation port, which allows staff to take out and put in the collection box without having to completely open the cover.

[0033] In a preferred embodiment, the impurity removal mechanism 60 is located below the independent space formed by the contraction inner wall 12, utilizing the protective function of the independent space to prevent water flow from interfering with the impurity removal process.

[0034] In a preferred embodiment, the impurity discharge mechanism 60 is an inclined guide plate structure. The upper end of the inclined guide plate is fixedly connected to the bottom end of the constricted inner wall 12, and the lower end extends directly above the collection box 81. The inclined structure enables impurities to automatically slide into the collection box under the action of gravity.

[0035] In the preferred embodiment, the intercepting columns of the upper intercepting column group 42 and the lower intercepting column group 43 are made of corrosion-resistant and high-strength materials, and the spacing between adjacent intercepting columns is set according to the interception requirements to ensure that small impurities can be effectively intercepted without affecting drainage efficiency.

[0036] Example 2: like Figure 1-7The middle section, the drainage well 10, is made of reinforced concrete with an inner diameter of 800mm and a depth of 1500mm; the inclined guide bottom wall 11 has an angle of 30° with the horizontal plane, and the constricted inner wall 12 has a conical structure with a taper of 1:5, forming an independent space with a volume of 0.3m³ below the inclined guide bottom wall 11. The external interception grate 20 is made of cast iron with a grid spacing of 30mm. During installation, it is fixed to the top opening of the sewer well 10 with bolts, and the upper surface is flush with the road surface. The self-cleaning interception mechanism 40 has an interception frame 41 that is a rectangular stainless steel frame with dimensions of 500mm × 400mm. The upper interception column group 42 and the lower interception column group 43 are both made of stainless steel, with an outer diameter of 10mm for the interception columns and a spacing of 20mm between adjacent interception columns. The upper interception column group 42 is 300mm long, and the lower interception column group 43 is 200mm long. Both are suspended at their ends, and the projection of the suspended end of the upper interception column group 42 falls completely within the projection range of the lower interception column group 43. The drive mechanism 50 has a servo motor 51 with model MSME022G1 and rated power of 200W; the drive disk 55 has a diameter of 80mm, the drive wheel 56 has a diameter of 30mm and an eccentricity of 25mm; the fixed support platform 53 is a welded steel plate structure, and the support column 54 is a stainless steel round tube with a diameter of 25mm and a length of 150mm, with both ends welded and fixed to the fixed support platform 53 and the motor mounting base 52 respectively; The monitoring unit 30 includes a waterproof infrared camera 31 with a resolution of 1080P; a buoyancy cylinder 34 made of plastic with a volume of 0.5L; a limit switch 38 model LX19-001; a control unit 37 including an STM32F103 controller, a photovoltaic inverter, a battery, and a remote data transmission module; a solar panel 32 with a power of 50W, installed on a street lamp pole next to the sewer well 10; and a protective box 33 made of stainless steel with dimensions of 300mm×200mm×200mm, embedded in the road surface. The impurity discharge mechanism 60 is a stainless steel inclined guide plate with a thickness of 3mm and an inclination angle of 45°. Its upper end is welded to the bottom end of the shrinkage inner wall 12, and its lower end extends to the top of the collection box 81. The maintenance mechanism 80 includes a plastic collection box 81 with a volume of 10L, a stainless steel gripping rod 82 with a length of 200mm that is welded to the top of the collection box 81, a reinforced concrete limit frame 83 with an inner diameter that matches the outer diameter of the collection box 81, and a cast iron cover 84 with a diameter of 300mm and a maintenance access port with a diameter of 150mm on its upper surface.

[0037] Example 3: like Figure 1-7 The working principle of this invention is as follows: Rainwater mixed with impurities on the road is first initially intercepted by the external intercepting grate 20 installed at the top opening of the sewer well 10, which filters out large impurities such as tree branches and plastic bags. The preliminarily purified rainwater then enters the sewer well 10. The water flowing into the sewer well 10 flows along the inclined guide bottom wall 11 and passes through the self-cleaning interception mechanism 40 located at the bottom of the inclined guide bottom wall 11. The upper interception column group 42 and the lower interception column group 43 on the interception frame 41 perform secondary interception of fine impurities in the water to achieve deep filtration. In the monitoring mechanism 30, the camera 31 installed on the top of the protective box 33 captures the operating status and impurity accumulation of the self-cleaning interception mechanism 40 in real time and transmits the image to the control unit 37. Meanwhile, the solar panel 32 continuously supplies power to electrical components such as the camera 31, control unit 37, and servo motor 51 through a photovoltaic inverter and a battery. When the self-cleaning interception mechanism 40 becomes clogged due to the accumulation of impurities, the water level in the sewer well 10 rises, causing the buoyancy cylinder 34 placed in the water to float upwards. The buoyancy cylinder 34 drives the trigger seat 39 in the middle to move upwards synchronously through the connecting rod 35. The vertical guide block 36 at the end of the connecting rod 35 slides along the vertical guide rod to ensure the verticality of the movement. When the trigger seat 39 moves upwards to touch the limit switch 38 fixed to the upper end of the inner wall of the protective box 33, the limit switch 38 sends a trigger signal to the control unit 37. After receiving the signal, the control unit 37 sends a rotation command to the servo motor 51. The servo motor 51 drives the drive disk 55 to rotate, and the drive wheel 56, which is eccentrically mounted on the drive disk 55, performs a circular motion, which in turn drives the driven frame 57 in contact with it to perform a horizontal reciprocating motion. The driven frame 57 drives the fixedly connected interception frame 41 and the upper interception column group 42 and the lower interception column group 43 to move horizontally and then reset. During this process, impurities are separated by the movement of the interception column group and guided by the impurity discharge mechanism 60 below the independent space formed by the contracted inner wall 12, and fall directionally into the collection box 81 located below it. After being intercepted and cleaned twice, the rainwater is discharged through the drainage pipe 70. Staff members regularly remove the collection box 81 through the maintenance operation port on the cover 84 and with the help of the gripping rod 82. After cleaning the internal impurities, the box is put back to complete the maintenance.

[0038] The beneficial effects of this invention are as follows: Through the innovative design of the self-cleaning interception mechanism, an upper interception column group and a lower interception column group with different lengths and non-through-connected ends are used in conjunction with horizontal reciprocating motion, which can concentrate and detach impurities at a designated position, effectively avoiding impurity residue. At the same time, the multi-stage interception structure improves the filtration accuracy, prevents impurities from entering the subsequent drainage pipe and causing blockage, and the cleaning process does not affect normal drainage. With the help of an intelligent triggering mechanism consisting of a buoyancy cylinder, limit switch, control unit and servo motor, when impurities accumulate and cause blockage, the water level rises and automatically triggers the limit switch, thereby starting the cleaning program. No manual intervention is required, which greatly reduces the frequency of manual cleaning, reduces maintenance costs and the labor intensity of cleaners. The camera setup in the monitoring mechanism can monitor the operation status and impurity interception of the self-cleaning interception mechanism in real time. Combined with the remote data transmission module of the control unit, remote monitoring and communication can be realized, making it convenient for staff to keep abreast of the device's operating status and deal with any abnormalities in a timely manner. Using solar panels to power electrical components, and achieving energy storage and stable power supply through photovoltaic inverters and batteries, it eliminates the need for external mains power, saving energy resources and adapting to road and outdoor use scenarios, which is in line with the development trend of energy conservation and environmental protection. Through the optimized design of the collection box, gripping rod, limiting frame and cover, the maintenance mechanism collects impurities in the collection box. The staff only needs to open the cover which is flush with the road surface and use the gripping rod to take out the collection box for cleaning. The operation is simple and convenient, which greatly improves the maintenance efficiency and eliminates the need to go down into the well, thus reducing the maintenance risk. The overall device has a compact and reasonable structural design, which is suitable for the narrow space of road drainage wells. The drive mechanism adopts a cooperative structure of drive disc, eccentric drive wheel and driven frame, which makes the transmission simple and reliable, reduces the risk of failure in humid environments, and improves the operational stability and service life of the device in humid and harsh environments.

Claims

1. An integrated filter device for a road drainage system comprising a catch basin (10), characterized in that: The inside of the sewer well (10) is provided with an inclined guide bottom wall (11) and a contraction inner wall (12), a plurality of groups of through holes (13) are arranged on the side wall of the contraction inner wall (12), the contraction inner wall (12) forms an independent space below the inclined guide bottom wall (11), the top opening end of the sewer well (10) is provided with an external interception well grate (20), the bottom of the sewer well (10) is provided with a drainage pipeline (70), the connection position of the sewer well (10) and the drainage pipeline (70) is provided with a self-cleaning interception mechanism (40) matched with the water flow path in the sewer well (10), the residue discharge side of the self-cleaning interception mechanism (40) is provided with an impurity discharge mechanism (60), the lower side of the impurity discharge mechanism (60) is provided with a maintenance mechanism (80), and the inside of the sewer well (10) is provided with a monitoring mechanism (30). The self-cleaning interception mechanism (40) comprises an interception frame (41), an upper layer interception column group (42) and a lower layer interception column group (43) fixedly arranged on the interception frame (41), the upper layer interception column group (42) and the lower layer interception column group (43) are different in length and are not connected at the end portions, and one side of the self-cleaning interception mechanism (40) is provided with a driving mechanism (50) matched therewith. The driving mechanism (50) comprises a servo motor (51), a driving disc (55) driven by the servo motor (51), a driving wheel (56) eccentrically arranged on the driving disc (55) and a driven frame (57) in contact with the driving wheel (56), the driven frame (57) is fixedly connected with the interception frame (41) and used for driving the interception frame (41) to horizontally reciprocate. The monitoring mechanism (30) comprises a buoyancy cylinder (34) arranged in the sewer well (10) and a protection box (33) arranged on the ground, one end of the buoyancy cylinder (34) is connected with a U-shaped connecting rod (35), the other end of the U-shaped connecting rod (35) is connected with a vertical guide block (36), the highest horizontal position of the U-shaped connecting rod (35) is provided with a trigger seat (39), the top of the inner wall of the protection box (33) is provided with a control unit (37), the control unit (37) is provided with a travel switch (38) matched with the trigger seat (39), and the control unit (37) is electrically connected with the travel switch (38) and the servo motor (51).

2. An integrated filter device for a road drainage system according to claim 1, characterised in that: The interception columns of the upper layer interception column group (42) and the lower layer interception column group (43) are arranged in parallel and at intervals, and the projection of the overhanging end of the upper layer interception column group (42) falls within the projection range of the lower layer interception column group (43).

3. An integrated filter device for a road drainage system according to claim 1, characterized in that: The driving mechanism (50) further comprises a fixed support table (53) and a support column (54), the servo motor (51) is installed on the fixed support table (53) through a motor fixing seat (52), and the two ends of the support column (54) are fixedly connected with the fixed support table (53) and the motor fixing seat (52) respectively.

4. An integrated filter device for a road drainage system according to claim 1, characterized in that: The monitoring mechanism (30) further comprises a camera (31), the camera (31) is installed at the top end of the protection box (33) and has a shooting direction towards the self-cleaning interception mechanism (40), and the camera (31) is electrically connected with the control unit (37).

5. An integrated filter device for a road drainage system according to claim 1, characterized in that: The monitoring mechanism (30) further comprises a solar panel (32) installed outside the sewer well (10), a protection box (33) arranged on the road surface and internally provided with a control unit (37), and the solar panel (32) supplies power to the electrical components through a photovoltaic inverter and a battery of the control unit (37).

6. An integrated filter device for a road drainage system according to claim 1, characterized in that: The maintenance mechanism (80) comprises a collecting box (81), a gripping rod (82) and a limiting frame (83) fixed to the collecting box (81), and the collecting box (81) is located below the impurity leading-out mechanism (60).

7. An integrated filter device for a road drainage system according to claim 1, characterized in that: The maintenance mechanism (80) further comprises a cover (84) arranged on the top opening of the limiting frame (83) and flush with the road surface, and the cover (84) is provided with a maintenance operation port.

8. An integrated filter device for a road drainage system according to claim 1, characterized in that: The impurity leading-out mechanism (60) is arranged below the independent space formed by the contraction inner wall (12).

9. An integrated filter device for a road drainage system according to claim 1, characterized in that: The impurity leading-out mechanism (60) is an inclined guide plate, the upper end of the inclined guide plate is fixedly connected with the bottom end of the contraction inner wall (12), and the lower end extends to directly above the collecting box (81).

10. An integrated filter device for a road drainage system according to claim 1, characterized in that: The interception column material of the upper interception column group (42) and the lower interception column group (43) is stainless steel, the outer diameter of the interception column is eight to twelve millimeters, and the spacing between adjacent interception columns is fifteen to twenty-five millimeters.

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