Drainage device with automatic decontamination function

Abstract

The present application relates to sewage management technical field, especially to a drainage device with automatic dredging pollutant function, which can automatically clean and dredge the impurities on the filter screen.The drainage device with automatic dredging pollutant function comprises a sleeve, the sleeve is symmetrically connected with a water inlet pipe, the top end of the sleeve is fixedly connected with a circular ring, the circular ring is installed with a filter screen, the bottom end of the sleeve is connected with a drain pipe, and the top end of the drain pipe is connected with a filter cartridge.The sewage in each place is introduced into the sleeve through the water inlet pipe, the sewage in the sleeve is filtered through the filter cartridge and then discharged from the drain pipe, and the sewage on the ground is filtered through the filter screen and then directly introduced into the filter cartridge and discharged from the drain pipe.In the process of treating sewage, the cleaning plate rotates to continuously scrape off and push up the impurities adhered to the outer side of the filter cartridge, so that the filter cartridge is dredged, and the filter cartridge is prevented from being blocked to affect the drainage effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage management, and particularly relates to a drainage device with automatic pollutant dredging function. BACKGROUND

[0002] The drainage device is essential in municipal engineering. The sewage produced after rain in the city is collected in the drainage device through the drainage pipelines everywhere, and then is discharged into the river after being treated by the drainage device. However, the sewage collected in the drainage device may be mixed with various solid impurities such as leaves and stones, which may easily cause the blockage of the drainage pipeline and affect the drainage effect. Therefore, the drainage pipeline needs to be dredged.

[0003] A municipal rainwater and sewage drainage device with automatic pollutant dredging function is disclosed in a patent with the authorization publication number CN215977641U. The municipal rainwater and sewage drainage device includes an outer shell and a separation box. The top outer side of the outer shell is connected with a water inlet pipe, and the bottom outer side of the water inlet pipe is provided with a first rotating pipe. The separation box is arranged on the bottom outer side of the first rotating pipe, and the outer side surface of the separation box is connected with a first gear. The municipal rainwater and sewage drainage device drives the rainwater and sewage in the separation box to rotate by controlling the rotation of the separation box, and the solid-liquid separation is performed through the filter screen under the action of centrifugal force. However, the impurities are easily adhered to the filter screen by this way of separating the sewage and impurities, which causes the blockage of the filter screen and affects the drainage. The municipal rainwater and sewage drainage device can only filter the impurities, and cannot effectively clean and dredge the impurities adhered to the filter screen, so that the problem of the blockage of the drainage pipeline cannot be solved from the root.

[0004] Therefore, the present application provides a drainage device with automatic pollutant dredging function which can automatically clean and dredge the impurities on the filter screen. SUMMARY

[0005] In order to overcome the shortcomings that the existing drainage device can only filter the impurities to prevent the blockage of the drainage pipeline, but cannot clean and dredge the impurities on the filter screen, the present application provides a drainage device with automatic pollutant dredging function which can automatically clean and dredge the impurities on the filter screen.

[0006] The drainage device with automatic pollutant dredging function includes a sleeve. The sleeve is symmetrically connected with a water inlet pipe. The top end of the sleeve is fixedly connected with a circular ring. The circular ring is installed with a filter screen. The bottom end of the sleeve is connected with a drainage pipe. The top end of the drainage pipe is connected with a filter cartridge. The circular ring and the drainage pipe are fixedly connected with a long strip plate. The long strip plate penetrates the filter cartridge. The drainage device further includes an annular guide rail which is fixedly connected to the filter cartridge. The annular guide rail is slidingly connected with a first gear ring. The long strip plate is provided with a driving assembly for driving the rotation of the first gear ring. The first gear ring is fixedly connected with a connecting rod. The connecting rod is fixedly connected with a cleaning plate.

[0007] Further, the cleaning plate is spirally arranged outside the filter cartridge.

[0008] Further, the driving assembly comprises a motor, the long strip plate is fixedly connected with the motor, an output shaft of the motor is fixedly connected with a first gear, and the first gear is engaged with the first gear ring.

[0009] Further, the cleaning plate is spirally arranged outside the filter cartridge.

[0010] Further, the driving assembly comprises a motor, the long strip plate is fixedly connected with the motor, an output shaft of the motor is fixedly connected with a first gear, and the first gear is engaged with the first gear ring.

[0011] Further, the driving assembly comprises a motor, the long strip plate is fixedly connected with the motor, an output shaft of the motor is fixedly connected with a first gear, and the first gear is engaged with the first gear ring.

[0012] Further, the driving assembly comprises a motor, the long strip plate is fixedly connected with the motor, an output shaft of the motor is fixedly connected with a first gear, and the first gear is engaged with the first gear ring.

[0013] Further, the driving assembly comprises a motor, the long strip plate is fixedly connected with the motor, an output shaft of the motor is fixedly connected with a first gear, and the first gear is engaged with the first gear ring.

[0014] Further, the driving assembly comprises a motor, the long strip plate is fixedly connected with the motor, an output shaft of the motor is fixedly connected with a first gear, and the first gear is engaged with the first gear ring.

[0015] Further, a collecting assembly for collecting impurities is further included, the collecting assembly is arranged on the cleaning plate, and the collecting assembly includes a collecting box fixedly connected to the top end of the cleaning plate, the collecting box is sleeved outside the filter cartridge, and a pushing frame is rotatably connected to the side of the collecting box close to the cleaning plate, a second gear is fixedly connected to the top end of the pushing frame, a second gear ring is fixedly connected to the side of the circular ring close to the second gear, and the second gear is in mesh with the second gear ring.

[0016] The present application has the following advantages: 1. sewage at various positions is introduced into the sleeve through the water inlet pipe, the sewage in the sleeve is filtered by the filter cartridge and then discharged from the drain pipe, and the sewage on the ground is filtered by the filter screen and then directly introduced into the filter cartridge and discharged from the drain pipe; when treating the sewage, the cleaning plate rotates to continuously scrape off and push up the impurities adhered to the outside of the filter cartridge, so that the purpose of dredging the filter cartridge is achieved, and the filter cartridge is prevented from being blocked to affect the drainage effect.

[0017] 2. When there is accumulated water in the sleeve, the impurities will float in the water, and the impurities in the water can be brought to the cleaning plate when the pushing plate slides upward, so that the cleaning plate can transport the impurities upward.

[0018] 3. The rotating blade can accelerate the speed of discharging the sewage, and the increased flow rate of the sewage can also reduce the probability of blockage.

[0019] 4. The scraping plate drives the dredging rod to rotate forward and backward, and the soil and stones stuck in the hole slot of the filter cartridge are dredged by the dredging rod.

[0020] 5. The pushing plate can turn upward to salvage the large impurities in the water to the cleaning plate, so that the cleaning plate can clean and transport the impurities.

[0021] 6. The impurities transported upward by the cleaning plate are pushed into the collecting box by the rotating pushing frame for collection. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0023] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the present application.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the driving assembly of the present application.

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the pushing assembly of the present application.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the pushing assembly of the present application.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the accelerating assembly of the present application.

[0028] Figure 7 The figure is a perspective view of the unclogging assembly of the present application.

[0029] Figure 8 The figure is a perspective view of the rotating frame, sliding ring and wedge block of the present application.

[0030] Figure 9 The figure is a perspective view of the cooperation between the wedge block and the rotating frame of the present application.

[0031] Figure 10 The figure is a perspective view of the fishing assembly of the present application.

[0032] Figure 11 The figure is a perspective view of the collecting assembly of the present application.

[0033] Figure 12 The figure is a perspective view of the collecting assembly of the present application.

[0034] Part names and serial numbers in the figure: 1_sleeve, 2_water inlet pipe, 3_long strip, 4_ ring, 5_filter screen, 6_drain pipe, 7_filter cartridge, 8_ annular guide rail, 9_first gear ring, 10_motor, 11_first gear, 12_connection rod, 13_cleaning plate, 14_push plate, 15_bump, 16_mounting plate, 17_cylinder, 18_linkage, 19_oscillating plate, 20_floating block, 21_mounting frame, 22_ rotating shaft, 23_gear disc, 24_rotating blade, 25_mounting ring, 26_ rotating frame, 27_first torsional spring, 28_scraper, 29_unclogging rod, 30_first spring, 31_sliding ring, 32_wedge block, 33_second spring, 34_pushing plate, 35_second torsional spring, 36_contact block, 37_squeezing rod, 38_collecting box, 39_pushing frame, 40_second gear, 41_second gear ring. DETAILED DESCRIPTION

[0035] The preferred technical solutions of the present application are described in detail below in combination with the figures.

[0036] Example 1

[0037] A drainage device with automatic unclogging of pollutants, such as Figure 1 , Figure 2 and Figure 3As shown, including sleeve 1, inlet pipe 2, long strip plate 3, ring 4, filter screen 5, drain pipe 6, filter cartridge 7, annular guide rail 8, first ring gear 9, drive assembly, connecting rod 12 and cleaning plate 13, sleeve 1 lower left and right sides are communicated with inlet pipe 2, sleeve 1 upper side is fixedly connected with ring 4, ring 4 is installed with filter screen 5, sleeve 1 lower side is communicated with drain pipe 6, drain pipe 6 upper side is communicated with filter cartridge 7, ring 4 and drain pipe 6 are fixedly connected with long strip plate 3, long strip plate 3 penetrates filter cartridge 7, filter cartridge 7 inner upper portion is fixedly connected with annular guide rail 8, annular guide rail 8 is slidably connected with first ring gear 9, long strip plate 3 upper portion is provided with drive assembly, drive assembly can drive first ring gear 9 to rotate, first ring gear 9 is fixedly connected with connecting rod 12, connecting rod 12 lower portion is fixedly connected with cleaning plate 13, cleaning plate 13 is spiral around the outside of filter cartridge 7.

[0038] As shown in Figure 3 , the drive assembly includes a motor 10 and a first gear 11, the upper portion of the long strip plate 3 is fixedly connected with the motor 10, the output shaft of the motor 10 is fixedly connected with the first gear 11, and the first gear 11 is engaged with the first ring gear 9.

[0039] In use of the device, the device is installed at a designated position, the sewage pipeline is connected to the inlet pipe 2, and the sewage at each position is guided into the inlet pipe 2 through the sewage pipeline, then the sewage is guided into the sleeve 1 through the inlet pipe 2, the sewage in the sleeve 1 is filtered through the filter cartridge 7 and then discharged from the drain pipe 6, and the sewage on the ground is filtered through the filter screen 5 and then directly enters the filter cartridge 7, and then discharged from the drain pipe 6. During use of the device, the operator controls the operation of the motor 10 to make the output shaft of the motor 10 rotate to drive the first gear 11 to rotate, the first gear 11 drives the first ring gear 9 to rotate in the annular guide rail 8, the first ring gear 9 drives the cleaning plate 13 to rotate through the connecting rod 12, and the cleaning plate 13 rotates to continuously scrape off and push up the impurities adhered to the outside of the filter cartridge 7, thereby achieving the purpose of dredging the filter cartridge 7 and preventing the filter cartridge 7 from being blocked to affect the drainage effect.

[0040] Example 2

[0041] Based on example 1, as shown in Figure 2 , Figure 4 and Figure 5 , it further includes a pushing assembly, the pushing assembly can push the impurities onto the cleaning plate 13, the pushing assembly includes a pushing plate 14, a protrusion 15 and an extrusion assembly, the lower portion of the cleaning plate 13 is slidably connected with the pushing plate 14, the front side of the pushing plate 14 is fixedly connected with the protrusion 15, and the extrusion assembly is arranged on the drain pipe 6, and the extrusion assembly can extrude the pushing plate 14 to slide upward.

[0042] As shown in Figure 2 , Figure 4 and Figure 5As shown, the extrusion assembly includes a mounting plate 16, a cylinder 17, a connecting rod 18, a swing plate 19 and a float 20. The mounting plate 16 is fixedly connected to the front upper portion of the drain pipe 6. The cylinder 17 is fixedly connected in the mounting plate 16. The connecting rod 18 is slidably connected to the cylinder 17. The swing plate 19 is slidably connected to the lower left end of the connecting rod 18. The swing plate 19 is rotatably connected to the right portion of the inner bottom of the sleeve 1. The float 20 is slidably connected in the cylinder 17. The float 20 is connected to the lower right end of the connecting rod 18.

[0043] When there is accumulated water in the sleeve 1, impurities will float in the water. The cleaning plate 13 cannot transport the impurities in the water upward in rotation. Therefore, the impurities need to be pushed onto the cleaning plate 13. The specific operation is as follows: the cleaning plate 13 drives the push plate 14 and the protrusion 15 to rotate. When there is accumulated water in the sleeve 1, the float 20 will slide upward. The float 20 sliding upward drives the connecting rod 18 to move upward. The connecting rod 18 moving upward drives the swing plate 19 to rotate upward to an inclined state. When the protrusion 15 rotates to contact the swing plate 19, the protrusion 15 will be pressed upward by the swing plate 19 to continue rotating. In turn, the push plate 14 slides upward along the cleaning plate 13. When the push plate 14 slides upward, the impurities in the water can be brought onto the cleaning plate 13, so that the cleaning plate 13 can transport the impurities upward. When the protrusion 15 rotates to disengage from the swing plate 19, the push plate 14 slides downward to reset under the action of gravity. When the accumulated water in the sleeve 1 is discharged, the connecting rod 18 drives the float 20 to slide downward under the action of gravity. The swing plate 19 also rotates downward to reset.

[0044] As shown in Figure 2 and Figure 6 , the acceleration assembly is further included. The acceleration assembly can accelerate the flow rate of the sewage. The acceleration assembly includes a mounting frame 21, a rotating shaft 22, a gear plate 23 and rotating leaves 24. The mounting frame 21 is fixedly connected to the upper portion of the long strip plate 3. The rotating shaft 22 is rotatably connected to the rear portion of the mounting frame 21. The gear plate 23 is fixedly connected to the upper portion of the rotating shaft 22. The gear plate 23 is engaged with the first gear 11. The rotating leaves 24 are fixedly connected to the lower portion of the rotating shaft 22.

[0045] The normal flow speed of the sewage is limited. The rotating leaves 24 can be rotated to absorb water and accelerate. The specific operation is as follows: the first gear 11 drives the gear plate 23 to rotate. The gear plate 23 drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the rotating leaves 24 to rotate. The rotating leaves 24 rotating can accelerate the speed of sewage discharge. At the same time, the accelerated flow rate of the sewage can also reduce the probability of blockage.

[0046] As shown in Figure 2 , Figure 7 , Figure 8 and Figure 9As shown, the filter device further comprises a dredging assembly capable of dredging the filter cartridge 7, the dredging assembly comprising a mounting ring 25, a rotating frame 26, a first torsional spring 27, a scraper 28, a dredging rod 29, a first spring 30, a sliding ring 31, a wedge block 32 and a second spring 33, the mounting frame 21 is fixedly connected with the mounting ring 25 at the rear portion, the mounting ring 25 is rotatably connected with the rotating frame 26, the rotating shaft 22 penetrates through the rotating frame 26, the rotating frame 26 is connected with the mounting frame 21 through the first torsional spring 27, the rotating frame 26 is fixedly connected with six circumferentially equidistantly distributed scrapers 28, the scrapers 28 are in abutment with the inner wall of the filter cartridge 7, the scraper 28 is slidably connected with eight equidistantly distributed dredging rods 29, the dredging rod 29 is connected with the adjacent scraper 28 through the first spring 30, the sliding ring 31 is slidably connected with the rotating shaft 22 at the upper portion, the wedge block 32 is fixedly connected with the sliding ring 31 at the eccentric position at the lower side, the wedge block 32 cooperates with the rotating frame 26, and the sliding ring 31 is connected with the rotating shaft 22 through the second spring 33.

[0047] The small stones and soil mixed in the sewage are easy to be clamped in the hole groove of the filter cartridge 7, causing the filter cartridge 7 to be blocked, so dredging is needed, and the specific operation is as follows: in the initial state, the wedge block 32 is in contact with the rotating frame 26, and the second spring 33 is in a deformed state, when the rotating shaft 22 rotates, the sliding ring 31 is driven to rotate, the sliding ring 31 drives the wedge block 32 to rotate, when the wedge block 32 rotates to cooperate with the rotating frame 26, under the action of the reset of the second spring 33, the sliding ring 31 drives the wedge block 32 to move downward, the wedge block 32 moves downward to be embedded in the rotating frame 26, at this time, the wedge block 32 continues to rotate to drive the rotating frame 26 to rotate, the first torsional spring 27 is deformed, the rotating frame 26 drives the scraper 28 to rotate, the scraper 28 drives the dredging rod 29 to rotate, under the action of the first spring 30, the dredging rod 29 rotates to the hole groove of the filter cartridge 7 and is inserted into the hole groove, and then the soil and stones clamped in the hole groove are pushed out, when the rotating frame 26 rotates to contact the long strip plate 3 and cannot continue to rotate, the wedge block 32 continues to rotate and is pressed upward by the rotating frame 26, the wedge block 32 drives the sliding ring 31 to slide upward, the second spring 33 is deformed, after the wedge block 32 moves upward, under the action of the reset of the first torsional spring 27, the rotating frame 26 drives the scraper 28 and the dredging rod 29 to reverse and reset, in this way, the soil and stones clamped in the filter cartridge 7 can be dredged.

[0048] As Figure 2 and Figure 10As shown, the fishing assembly is capable of fishing up impurities, and the fishing assembly comprises a pushing plate 34, a second torsional spring 35, a contact block 36 and an extrusion rod 37. The pushing plate 34 is rotatably connected to the pushing plate 14, and the second torsional spring 35 is connected between the pushing plate 34 and the pushing plate 14. The contact block 36 is fixedly connected to the right front end of the pushing plate 34. The extrusion rod 37 is fixedly connected to the lower part of the cleaning plate 13. The contact block 36 is extruded to rotate by the extrusion rod 37 when moving to the right and upward.

[0049] The large impurities cannot be effectively taken up by the cleaning plate 13 when sliding upwardly through the pushing plate 14, so fishing treatment is needed. The specific operation is as follows: when the pushing plate 14 slides upwardly along the cleaning plate 13, the pushing plate 34 and the contact block 36 are driven to move upwardly. The contact block 36 is extruded to rotate to the left by the extrusion rod 37 when moving upwardly, thereby driving the pushing plate 34 to overturn upwardly. The second torsional spring 35 is deformed. The pushing plate 34 overturning upwardly can fish the large impurities in the water to the cleaning plate 13. When the pushing plate 14 no longer slides upwardly, the pushing plate 34 slides downwardly and resets under the action of the second torsional spring 35. In this way, the large impurities in the water can be fished to the cleaning plate 13.

[0050] As shown in Figure 2 , Figure 11 and Figure 12 , the collecting assembly is capable of collecting impurities, and the collecting assembly comprises a collecting box 38, a pushing frame 39, a second gear 40 and a second gear ring 41. The collecting box 38 is fixedly connected to the upper part of the cleaning plate 13 and is sleeved outside the filter cartridge 7. The pushing frame 39 is rotatably connected to the front part of the collecting box 38. The second gear 40 is fixedly connected to the pushing frame 39. The second gear ring 41 is fixedly connected to the lower side of the circular ring 4. The second gear 40 is engaged with the second gear ring 41.

[0051] The collecting box 38 can collect the impurities pushed upwardly by the cleaning plate 13. The specific operation is as follows: the cleaning plate 13 drives the collecting box 38 to rotate, the collecting box 38 drives the pushing frame 39 and the second gear 40 to revolve, the second gear 40 revolves and rotates at the same time by engaging with the second gear ring 41, thereby driving the pushing frame 39 to rotate. When the cleaning plate 13 pushes the impurities upwardly, the pushing frame 39 rotating can push the impurities on the cleaning plate 13 into the collecting box 38 to be collected.

[0052] It should be understood that the above description is for exemplary purposes only and does not mean to limit the present application. Those skilled in the art will understand that variations of the present application will be included within the scope of the claims herein.

Claims

1. A drainage device with automatic pollutant removal function, comprising a sleeve (1), an inlet pipe (2) symmetrically connected to the sleeve (1), a ring (4) fixedly connected to the top of the sleeve (1), a filter screen (5) installed on the ring (4), a drain pipe (6) connected to the bottom of the sleeve (1), a filter cylinder (7) connected to the top of the drain pipe (6), and a long strip plate (3) fixedly connected between the ring (4) and the drain pipe (6), the long strip plate (3) penetrating the filter cylinder (7), characterized in that, It also includes an annular guide rail (8), which is fixedly connected to the filter cartridge (7). The annular guide rail (8) is slidably connected to a first toothed ring (9). The long strip plate (3) is provided with a drive assembly for driving the first toothed ring (9) to rotate. The first toothed ring (9) is fixedly connected to a connecting rod (12), and the connecting rod (12) is fixedly connected to a cleaning plate (13). The cleaning plate (13) is spirally arranged around the outside of the filter cartridge (7); The drive assembly includes a motor (10), a long strip plate (3) is fixedly connected to the motor (10), and the output shaft of the motor (10) is fixedly connected to a first gear (11), which meshes with a first gear ring (9); It also includes a pushing assembly for pushing impurities onto the cleaning plate (13), the pushing assembly is disposed on the cleaning plate (13), the pushing assembly includes a pushing plate (14), the pushing plate (14) is slidably connected to the side of the cleaning plate (13) near the drain pipe (6), the pushing plate (14) is fixedly connected to a protrusion (15), and the drain pipe (6) is provided with a squeezing assembly for squeezing the sliding of the pushing plate (14); The extrusion assembly includes a mounting plate (16), which is fixedly connected to the drain pipe (6). The mounting plate (16) is fixedly connected to a cylinder (17), which is slidably connected to a connecting rod (18). The end of the connecting rod (18) away from the cylinder (17) is slidably connected to a swing plate (19). The right side of the swing plate (19) is rotatably connected to the sleeve (1). The cylinder (17) is slidably connected to a float (20), which is connected to the end of the connecting rod (18) away from the swing plate (19).

2. A drainage device with automatic pollutant removal function according to claim 1, characterized in that, It also includes an acceleration component for increasing the flow rate of sewage. The acceleration component is set on the long plate (3). The acceleration component includes a mounting frame (21). The long plate (3) is fixedly connected to the mounting frame (21). The mounting frame (21) is rotatably connected to the shaft (22). The top of the shaft (22) is fixedly connected to a gear disk (23). The gear disk (23) meshes with the first gear (11). The bottom of the shaft (22) is fixedly connected to a rotating blade (24).

3. A drainage device with automatic pollutant removal function according to claim 2, characterized in that, It also includes a unclogging assembly for unclogging the filter cartridge (7). The unclogging assembly is mounted on the mounting frame (21). The unclogging assembly includes a mounting ring (25). The mounting ring (25) is fixedly connected to the mounting frame (21). The mounting ring (25) is rotatably connected to a rotating frame (26). A rotating shaft (22) passes through the rotating frame (26). A first torsion spring (27) is connected between the rotating frame (26) and the mounting frame (21). A scraper (28) is fixedly connected to the rotating frame (26) with circumferentially equidistantly distributed. The scraper (28) is in contact with the inner wall of the filter cartridge (7). A sliding ring (31) is slidably connected to the side of the rotating shaft (22) near the rotating frame (26). A wedge block (32) is fixedly connected to the eccentric position of the sliding ring (31). The wedge block (32) cooperates with the rotating frame (26). A second spring (33) is connected between the sliding ring (31) and the rotating shaft (22).

4. A drainage device with automatic pollutant removal function according to claim 3, characterized in that, The unblocking assembly also includes unblocking rods (29) and a first spring (30). Eight unblocking rods (29) are slidably connected on the scraper (28), and the unblocking rods (29) are connected to the adjacent scraper (28) by the first spring (30).

5. A drainage device with automatic pollutant removal function according to claim 4, characterized in that, It also includes a retrieval assembly for retrieving impurities. The retrieval assembly is set on the push plate (14). The retrieval assembly includes a pusher plate (34). The pusher plate (14) is rotatably connected to the pusher plate (34). A second torsion spring (35) is connected between the pusher plate (34) and the pusher plate (14). A contact block (36) is fixedly connected to the pusher plate (34). A squeezing rod (37) is fixedly connected to the side of the cleaning plate (13) near the pusher plate (34). The contact block (36) and the squeezing rod (37) are squeezed together.

6. A drainage device with automatic pollutant removal function according to claim 5, characterized in that, It also includes a collection component for collecting impurities. The collection component is set on the cleaning plate (13). The collection component includes a collection box (38). The collection box (38) is fixedly connected to the top of the cleaning plate (13). The collection box (38) is sleeved on the outside of the filter cartridge (7). A pusher (39) is rotatably connected to the side of the collection box (38) near the cleaning plate (13). A second gear (40) is fixedly connected to the top of the pusher (39). A second gear ring (41) is fixedly connected to the side of the ring (4) near the second gear (40). The second gear (40) meshes with the second gear ring (41).

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