CN113354119A

CN113354119A - Rural domestic sewage treatment device

Info

Publication number: CN113354119A
Application number: CN202110596731.7A
Authority: CN
Inventors: 王倪; 舒建云; 林昱帆; 胡永丰; 王小昆; 贡超
Original assignee: Jiangsu Quanxin Construction Co ltd
Current assignee: Jiangsu Quanxin Construction Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-09-07

Abstract

The utility model relates to a rural domestic sewage treatment device relates to sewage treatment device's field, and it includes a plurality of bilge wells, arranges sewer, sewage collecting pit, and the through connection has the connecting pipe between bilge well and the sewage collecting pit, arranges the sewer and link up with sewage collecting pit, is provided with first sewage purification mechanism in the bilge well, is provided with second sewage purification mechanism in the sewer of arranging, is provided with rubbish fishing mechanism in the sewer of arranging, is provided with third sewage purification mechanism in the sewage collecting pit. The method has the effect of reducing the pollution of rural domestic sewage to the environment.

Description

Rural domestic sewage treatment device

Technical Field

The application relates to the field of sewage treatment equipment, in particular to a rural domestic sewage treatment device.

Background

Rural domestic sewage is mainly generated from chemical fertilizer and pesticide sewage, breeding sewage, human and animal excrement flushing water, bathing sewage, kitchen sewage and the like. With the aggravation of agricultural production activities, the environmental pollution caused by rural domestic sewage is more and more serious.

At present, various sewage villagers in rural life adopt different treatment modes, and the fertilizer and pesticide sewage is generally directly poured into nearby rivers or ditches; the breeding sewage is generally poured into a ditch; the human and animal excrement flushing water, the bath sewage, the kitchen sewage and the breeding sewage are discharged into the septic tank through corresponding sewage discharge pipelines.

Just because of lacking unified efficient sewage treatment device, the treatment methods of rural residents for various domestic sewage are different and random, the sewage treatment method can directly pollute rivers, and meanwhile, a large amount of garbage is mixed in sewage poured into a ditch, and the garbage smells to pollute the environment after long-term sewage soaking.

Disclosure of Invention

In order to reduce the pollution of rural domestic sewage to the environment, the application provides a rural domestic sewage treatment device.

The application provides a rural domestic sewage treatment plant adopts following technical scheme:

the utility model provides a rural domestic sewage treatment device, includes a plurality of bilge wells, row's bilge drain, sewage collecting pit, through connection has the connecting pipe between bilge well and the sewage collecting pit, it has a perfect understanding with the sewage collecting pit to arrange the bilge drain, be provided with first sewage purification mechanism in the bilge well, it is provided with second sewage purification mechanism in the bilge drain to arrange, it salvages the mechanism to be provided with rubbish in the bilge drain to arrange, be provided with third sewage purification mechanism in the sewage collecting pit.

Through adopting above-mentioned technical scheme, the bilge well is as the place that fertilizer pesticide sewage concentrates and emptys, the blowdown ditch is as breeding sewage, rinse the place that sewage and other domestic sewage emptys, first sewage purification mechanism can filter fertilizer pesticide sewage cleanly, second sewage purification mechanism and rubbish salvage mechanism can intercept and clear up the rubbish in breeding the sewage respectively, sewage after all kinds of clean at last is unified arranges to the sewage collecting pit, purify the sewage that collects once more by third sewage purification mechanism at last, this kind of mode can carry out cleaning treatment to different types of sewage to a certain extent, be favorable to reducing rural domestic sewage to the river, the pollution of environment destroys, be favorable to protecting the environment.

Optionally, first sewage purification mechanism is including dismantling the rose box of connecting in sewage collecting tank, seting up the runner on the bilge well inner wall, setting up the purification subassembly in the runner, water inlet and delivery port have been seted up on the rose box, sliding connection has the baffle that is used for the shutoff delivery port on the rose box, the adsorbent has been placed in the rose box, the runner link up with the delivery port, the inner wall of bilge well is located to the runner spiral ring, the influent stream mouth of runner is located the below of delivery port, the purification subassembly includes a plurality of activated carbon rods of dismantling to be connected in the runner.

Through adopting above-mentioned technical scheme, sewage is poured into in the rose box and is mixed with the adsorbent, and this kind of mode can adsorb fertilizer pesticide sewage, and activated carbon rod can adsorb this type of sewage once more at fertilizer pesticide sewage trickling in-process simultaneously, is favorable to cleaning this type of sewage, weakens the pollution of fertilizer pesticide sewage.

Optionally, the second purification mechanism includes an interception net cylinder rotatably connected to the sewage drainage channel, and a plurality of interception hooks fixedly connected to the wall of the interception net cylinder, the interception net cylinder is arranged along the length direction of the sewage drainage channel, a plurality of sewage inlet grooves are formed in the net surface of the interception net cylinder, and the sewage inlet grooves are communicated with the inner cavity of the interception net cylinder.

Through adopting above-mentioned technical scheme, the rubbish of the sewage that pours into in the sewage ditch can be intercepted to the interception net section of thick bamboo, is favorable to reducing the rubbish in the sewage ditch and is soaked for a long time by sewage and smelly the condition, is favorable to protecting the environment.

Optionally, rubbish salvage mechanism includes bracing piece, sliding connection sliding block on the bracing piece in the sewage drainage canal of fixed connection, rotates the scraper blade of connecting on the sliding block, set up and be used for driving the sliding block along the drive assembly one that bracing piece length direction removed, sliding connection lift the board in the canal on the bracing piece, set up and be used for the drive to lift the drive assembly two that the board rises in the sewage drainage canal, the bracing piece sets up along the length direction of sewage drainage canal, the scraper blade sets up along the direction of perpendicular to bracing piece, it sets up along the horizontal direction to lift the board.

Through adopting above-mentioned technical scheme, rotate the scraper blade and make the scraper blade rotate to in the sewage canal of arranging, utilize the rubbish of a pair of sewage of drive assembly to promote afterwards, make rubbish remove to lifting board department, utilize drive assembly two pairs of lifting boards to drive afterwards, utilize to lift the board and promote rubbish to the drain canal's of sewer canal mouth department, the cleanup crew of being convenient for clears up rubbish, is favorable to maintaining the inside cleanness of arranging the sewage canal.

Optionally, the first driving assembly comprises a threaded rod rotatably connected to the supporting rod and a nut seat in threaded connection with the threaded rod, the threaded rod is arranged along the length direction of the supporting rod, the nut seat is fixedly connected to the sliding block, and the first driving assembly is fixedly connected to the supporting rod and used for driving a first driving motor for rotating the threaded rod.

Through adopting above-mentioned technical scheme, when needs promoted the sliding block, start driving motor one, driving motor one drives the threaded rod and rotates, and the threaded rod can drive the sliding block removal with the screw-thread fit of nut seat to remove the baffle.

Optionally, drive assembly two is including rotating drive gear, the sliding connection that connects on the sewage drainage ditch lateral wall and with drive gear rotation meshed drive rack, drive rack sets up along vertical direction, drive rack and lifting board fixed connection, fixedly connected with is used for driving drive gear pivoted driving motor two on the lateral wall of sewage drainage ditch.

By adopting the technical scheme, when the lifting plate needs to be lifted, the driving motor II is started, the driving gear is driven by the driving motor II to rotate, and the driving gear drives the driving rack to move along the vertical direction when rotating, so that the lifting plate is driven to move.

Optionally, the third purification mechanism is including dismantling the filter plate of connecting in the sewage catch basin, laying the cobble layer on the sewage catch basin bottom surface, the filter plate sets up and is located the top on cobble layer along the horizontal direction, set up a plurality of filtration pores that link up the filter plate face on the filter plate.

Through adopting above-mentioned technical scheme, the sewage that gets into in the sewage collecting pit is along with storage time's process, and impurity in the various sewage can subside to the cobble layer in, is favorable to further cleaning various sewage, is favorable to maintaining the environment.

Optionally, the aperture of the filter hole facing to the cobble layer is smaller than the aperture of the filter hole facing to the cobble layer.

Through adopting above-mentioned technical scheme, the filtration pore of this kind of form can reduce the volume that filter plate below impurity floated to the filter plate top, is favorable to improving the clean effect to sewage in the sewage collecting pit.

To sum up, the application comprises the following beneficial technical effects: through the setting of bilge well, blowdown ditch, sewage collecting pit and first sewage purification mechanism, second sewage purification mechanism, third sewage purification mechanism, can carry out cleaning to different types of rural domestic sewage to a certain extent, be favorable to reducing rural domestic sewage and destroy to the pollution of river, environment, be favorable to protecting the environment.

Drawings

FIG. 1 is a block diagram of a domestic sewage treatment apparatus according to an embodiment.

FIG. 2 is a schematic view of a cross-section of a sump well and a sump tank in an embodiment.

Fig. 3 is a schematic view of an enlarged view at a in fig. 2.

Figure 4 is a schematic view of a bilge well according to an embodiment.

FIG. 5 is a schematic sectional view of the sewage draining ditch and the sewage collecting tank in the embodiment.

FIG. 6 is a schematic view showing the internal structure of the sewage draining ditch according to the embodiment.

Fig. 7 is a schematic diagram for embodying the second driving assembly in the drain channel.

Description of reference numerals: 1. a bilge well; 2. a sewage drainage ditch; 3. a sewage collection tank; 4. a sewage draining outlet; 5. a connecting pipe; 61. a filter box; 62. a flow channel; 631. an activated carbon rod; 7. a connecting rod; 8. a bit block; 9. a clamping groove; 10. a water inlet; 11. a water outlet; 12. a baffle plate; 13. an electric cylinder; 15. a slot cover plate; 16. a flow inlet; 17. an outflow port; 18. inserting grooves; 19. removing a dirt opening; 201. intercepting the net drum; 202. intercepting a hook; 21. a mounting frame; 22. a sewage inlet tank; 231. a support bar; 232. (ii) a A slider; 233. a squeegee; 234. lifting the plate; 235. accommodating grooves; 24. a threaded rod; 25. a nut seat; 26. driving a motor I; 27. mounting grooves; 28. a drive gear; 29. a drive rack; 30. a second driving motor; 311. filtering the plate; 312. a cobble layer; 32. filtering holes; 33. a water receiving seat; 34. placing the first groove; 35. a second placing groove; 36. a connecting rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a rural domestic sewage treatment device.

Examples

Referring to fig. 1, the rural domestic sewage treatment apparatus includes a plurality of sewage wells 1, a sewage drainage channel 2, and a sewage collection tank 3. Wherein, bilge well 1 link up with sewage collecting pit 3, and drainage ditch 2 links up with sewage collecting pit 3. A first sewage purification mechanism is arranged in the sewage well 1, a second sewage purification mechanism is arranged in the sewage discharge canal 2, a garbage salvage mechanism is arranged in the sewage discharge canal 2, and a third sewage purification mechanism is arranged in the sewage collecting pool 3.

The fertilizer and pesticide sewage is poured into the sewage well 1, the breeding sewage, the rinsing sewage and other domestic sewage are poured into the sewage discharge canal 2, and the first sewage purification mechanism filters and cleans the sewage such as fertilizer and pesticide. The second sewage purification mechanism filters and cleans breeding sewage, rinsing sewage and other domestic sewage, and can salvage and clean the garbage accumulated in the sewage discharge ditch 2 through the garbage salvage mechanism.

Referring to fig. 2 and 3, bilge well 1 is seted up on subaerial and is cylindric setting, and bilge well 1's inside wall is close to its bottom department and has seted up drain 4, and the through connection has connecting pipe 5 between bilge well 1 and the sewage collecting tank 3, and connecting pipe 5 link up with drain 4, and connecting pipe 5 is close to the height that 1 one end place of bilge well is higher than it is close to the height that 3 one end places of sewage collecting tank.

Referring to fig. 2 and 4, a slotted cover plate 15 is fixedly connected to the inner wall of the sewage well 1, the slotted cover plate 15 is cylindrical, the slotted cover plate 15 is formed by splicing a plurality of arc-shaped plates, and the slotted cover plate 15 is attached to the inner wall of the sewage well 1.

Referring to fig. 2 and 3, the first sewage purifying mechanism includes a filter tank 61, a flow passage 62, and a purifying member disposed in the flow passage 62. Wherein, rose box 61 is cylindric setting, fixedly connected with connecting rod 7 in the lateral wall of groove apron 15, and connecting rod 7 sets up along the horizontal direction, and the tip fixedly connected with screens piece 8 of connecting rod 7, screens piece 8 are T type piece. The clamping groove 9 is formed in the outer side wall of the filter box 61 in the vertical direction, and the cross section of the inner cavity of the clamping groove 9 is in a T-shaped arrangement. When the filter tank 61 is placed in the sewage well 1, the filter tank 61 can be fixed in the sewage well 1 by engaging the engaging groove 9 with the engaging block 8.

Referring to fig. 2 and 3, the upper and lower ports of the filter box 61 are a water inlet 10 and a water outlet 11, respectively, the side wall of the filter box 61 is connected with two baffles 12 in a sliding manner, the two baffles 12 are both arranged along the horizontal direction, and the two baffles 12 can move in opposite directions and block the inner cavity of the filter box 61.

Referring to fig. 2 and 3, a water receiving seat 33 is fixedly connected to the bottom surface of the filtering tank 61, the water receiving seat 33 is arranged in a funnel shape, and an opening of the water receiving seat 33, which is far away from one end of the filtering tank 61, is smaller than an opening of the water receiving seat, which is close to one end of the filtering tank 61.

Referring to fig. 3 and 4, the electric cylinder 13 is fixedly connected to the outer side wall of the chute cover plate 15, a second placing groove 35 for placing the electric cylinder 13 is formed in the ground, and a piston rod of the electric cylinder 13 is arranged along the horizontal direction. The side wall of the bilge well 1 is provided with a first placing groove 34 used for containing the baffle 12, the first placing groove 34 is arranged along the horizontal direction, the groove cover plate 15 is provided with a penetrating groove used for penetrating the baffle 12, the penetrating groove is communicated with the first placing groove 34, and the baffle 12 can slide to the first placing groove 34.

Referring to fig. 3 and 4, the second placing groove 35 is communicated with the first placing groove 34, the piston rod of the electric cylinder 13 is fixedly connected with a connecting rod 36, the connecting rod 36 is arranged in a direction perpendicular to the electric cylinder 13 and is slidably connected in the first placing groove 34 and the second placing groove 35, the connecting rod 36 is fixedly connected with the baffle plate 12, and the baffle plate 12 can be driven to move by the electric cylinder 13.

An adsorbent is placed in the filter box 61, the adsorbent in the embodiment is activated carbon powder, villagers can manually add the activated carbon powder into the filter box 61 from the water inlet 10 and receive the activated carbon powder by the baffle plate 12, and the fertilizer and pesticide sewage is poured into the filter box 61 from the water inlet 10 and is subjected to adsorption filtration by the activated carbon powder.

Referring to fig. 2 and 4, the flow passage 62 is spirally and circularly arranged on the inner wall of the sewage well 1, and the groove cover plate 15 covers the notch of the flow passage 62.

Referring to fig. 2 and 3, the slot cover plate 15 is provided with a flow inlet 16 and a flow outlet 17 communicated with the inner cavity of the flow channel 62, the flow inlet 16 is positioned above the flow outlet 17, and the flow inlet 16 is positioned below the water outlet 11. The inlet 16 is fixedly connected with a sewage pipe which is communicated with the outlet of the water receiving seat 33. The outflow port 17 is also fixedly connected with a sewage pipe which is communicated with the sewage draining port 4. The sewage discharged from the filter tank 61 flows into the flow path 62 and is discharged through the sewage discharge outlet 4.

Referring to fig. 2 and 3, the purification assembly includes a plurality of activated carbon rods 631 detachably connected to the flow channel 62, and the activated carbon rods 631 are disposed in a cylindrical shape and are disposed in a direction perpendicular to an inner wall of the well 1. The side wall of the groove cover plate 15 facing the inner wall of the sewage well 1 is provided with a plurality of inserting grooves 18, one end of the activated carbon rod 631 is inserted in the inserting grooves 18, and the other end is inserted in the inner cavity of the flow channel 62. When the activated carbon rod 631 is installed, the activated carbon rod 631 is inserted into the arc-shaped plate, then the arc-shaped plate is attached to and fixed with the inner wall of the sewage well 1, at the moment, the activated carbon rod 631 is inserted into the flow channel 62, and finally the arc-shaped plate is sequentially spliced.

Referring to fig. 5 and 6, the inner cavity of the sewage draining channel 2 is rectangular, and a sewage removing opening 19 is formed on the inner side wall of the sewage draining channel 2 near the bottom end thereof. The sewage removing opening 19 is internally connected with a pipeline which is communicated with the inner cavity of the sewage collecting tank 3.

Referring to fig. 5 and 6, the second purification mechanism includes a plurality of catching net cylinders 201 rotatably coupled to the sewage drainage channel 2, and catching hooks 202 fixedly coupled to inner and outer cylinder walls of the catching net cylinders 201. Wherein, fixedly connected with mounting bracket 21 on the lateral wall of sewage discharge canal 2, interception net section of thick bamboo 201 rotates along the length direction of sewage discharge canal 2 and connects on mounting bracket 21.

Referring to fig. 5 and 6, 5 dirt inlet grooves 22 are formed in the net surface of the intercepting net barrel 201, the 5 dirt inlet grooves 22 are all arranged along the length direction of the intercepting net barrel 201, the dirt inlet grooves 22 are communicated with the inner cavity of the intercepting net barrel 201, and the 5 dirt inlet grooves 22 are arranged at equal intervals along the circumferential direction of the intercepting net barrel 201. Garbage in sewage poured into the sewage drainage channel 2 is intercepted by the intercepting net barrel 201 and the intercepting hooks 202 on the intercepting net barrel 201.

Referring to fig. 5 and 6, the garbage fishing mechanism includes a support rod 231 fixedly connected to the sewage drainage channel 2, a sliding block 232 slidably connected to the support rod 231, a scraping plate 233 rotatably connected to the sliding block 232, a first driving assembly arranged on the support rod 231 for driving the sliding block 232 to move along the length direction of the support rod 231, a lifting plate 234 slidably connected to the channel, and a second driving assembly arranged in the sewage drainage channel 2 for driving the lifting plate 234 to ascend.

Wherein, the bracing piece 231 is cylindricly sets up and sets up along the length direction of blowdown ditch 2, and sliding block 232 is the cuboid setting, and sliding block 232 sliding sleeve locates on the bracing piece 231. The sliding block 232 is rotatably connected with a rotating shaft, the rotating shaft is arranged along a direction parallel to the supporting rod 231, and the scraping plate 233 is fixedly connected with the rotating shaft along a direction perpendicular to the supporting rod 231. The paddle 233 can be rotated by manually flipping it over. A plurality of holding tanks 235 have been seted up on the lateral wall of blowdown ditch 2, and a plurality of holding tanks 235 are arranged along the length direction of blowdown ditch 2 equidistant, and scraper blade 233 can rotate to in the holding tank 235.

Referring to fig. 5 and 6, the driving assembly includes a threaded rod 24 rotatably coupled to the support rod 231, and a nut holder 25 threadedly coupled to the threaded rod 24. Wherein, the equal fixedly connected with connecting seat in both ends of bracing piece 231, threaded rod 24 sets up along the length direction of bracing piece 231, and threaded rod 24's both ends rotate with two connecting seats respectively and are connected. The nut holder 25 is fixedly connected to the slide block 232. And a first driving motor 26 is fixedly connected to the connecting seat, and an output shaft of the first driving motor 26 is fixedly connected to the end part of the threaded rod 24 through a coupler.

Referring to fig. 5, mounting groove 27 has been seted up on the bottom surface of sewage canal 2, and the inner chamber of mounting groove 27 is the cuboid setting, lifts board 234 and is the cuboid setting, and lifting board 234 is placed in mounting groove 27 along the horizontal direction.

Referring to fig. 7, the driving assembly includes a driving gear 28 rotatably coupled to an inner wall of the sewage draining channel 2, and a driving rack 29 slidably coupled to a side wall of the sewage draining channel 2 and rotatably engaged with the driving gear 28. The driving rack 29 is arranged along the vertical direction, the inner wall of the sewage drainage channel 2 is rotatably connected with a rotating shaft, the rotating shaft is horizontally arranged along the direction perpendicular to the driving rack 29, the rotating shaft and the driving gear 28 coaxially rotate, and the driving rack 29 is fixedly connected with the lifting plate 234.

Referring to fig. 7, a second driving motor 30 is fixedly connected to the side wall of the sewage draining channel 2, and an output shaft of the second driving motor 30 is fixedly connected to an end portion of the rotating shaft where the driving gear 28 is located.

Referring to fig. 2 and 3, the sewage collecting tank 3 is opened on the ground, and the inner cavity of the sewage collecting tank 3 is in a cuboid arrangement.

Referring to fig. 2 and 3, the third purification mechanism includes a filter plate 311 detachably attached to the sewage collection tank 3, and a cobble layer 312 laid on the bottom surface of the sewage collection tank 3. The filter plate 311 is arranged along the horizontal direction and is located above the cobble layer 312, a plurality of filter holes 32 penetrating through the surface of the filter plate 311 are formed in the filter plate 311, and the aperture of the filter hole 32 facing one end of the cobble layer 312 is smaller than that of the filter hole facing the end of the cobble layer 312.

The implementation principle of the embodiment is as follows: the fertilizer and pesticide sewage is intensively poured into the sewage well 1 and firstly enters the filter box 61, the sewage is contacted with the activated carbon powder, then the sewage is discharged into the flow channel 62, the activated carbon rod 631 is used for filtering and cleaning the sewage again, and then the sewage is discharged into the sewage collecting tank 3; when the breeding sewage, the rinsing sewage and other domestic sewage are dumped into the sewage drainage channel 2, the garbage is firstly intercepted by the intercepting net barrel 201, then the garbage in the sewage drainage channel 2 is treated by utilizing the scraping plate 233 and the lifting plate 234, and the sewage in the sewage drainage channel is drained into the sewage collection pool 3; the sewage that gets into in the sewage collecting pond 3 is along with storage time's lapse, and the impurity in various sewage can subside to in the cobble layer 312, and various sewage are constantly adsorbed, clean from empting to the in-process of gathering in sewage collecting pond 3, have reduced the polluting nature of various domestic sewage.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A rural domestic sewage treatment device is characterized in that: including a plurality of bilge wells (1), sewage canal (2), sewage catch pit (3), through connection has connecting pipe (5) between bilge well (1) and sewage catch pit (3), it has a perfect understanding with sewage catch pit (3) to arrange bilge canal (2), be provided with first sewage purification mechanism in bilge well (1), be provided with second sewage purification mechanism in arranging bilge canal (2), be provided with rubbish fishing mechanism in arranging bilge canal (2), be provided with third sewage purification mechanism in sewage catch pit (3).

2. The rural domestic sewage treatment device of claim 1, wherein: first sewage purification mechanism is including dismantling rose box (61) of connecting in sewage collecting tank (3), seting up runner (62) on bilge well (1) inner wall, setting up the purification subassembly in runner (62), water inlet (10) and delivery port (11) have been seted up on rose box (61), sliding connection has baffle (12) that are used for shutoff delivery port (11) on rose box (61), the adsorbent has been placed in rose box (61), runner (62) link up with delivery port (11), the inner wall of bilge well (1) is located to runner (62) spiral ring, influent stream mouth (16) of runner (62) are located the below of delivery port (11), the purification subassembly includes a plurality of active carbon stick (631) of dismantling to connect in runner (62).

3. The rural domestic sewage treatment device of claim 1, wherein: the second purification mechanism comprises an interception net cylinder (201) rotatably connected in the sewage drainage channel (2) and a plurality of interception hooks (202) fixedly connected to the wall of the interception net cylinder (201), the interception net cylinder (201) is arranged along the length direction of the sewage drainage channel (2), a plurality of sewage inlet grooves (22) are formed in the net surface of the interception net cylinder (201), and the sewage inlet grooves (22) are communicated with the inner cavity of the interception net cylinder (201).

4. The rural domestic sewage treatment device of claim 1, wherein: the garbage fishing mechanism comprises a support rod (231) fixedly connected to the sewage drainage channel (2), a sliding block (232) slidably connected to the support rod (231), a scraping plate (233) rotatably connected to the sliding block (232), a first driving assembly arranged on the support rod (231) and used for driving the sliding block (232) to move along the length direction of the support rod (231), a lifting plate (234) slidably connected to the water channel, and a second driving assembly arranged in the sewage drainage channel (2) and used for driving the lifting plate (234) to ascend, wherein the support rod (231) is arranged along the length direction of the sewage drainage channel (2), the scraping plate (233) is arranged along the direction perpendicular to the support rod (231), and the lifting plate (234) is arranged along the horizontal direction.

5. The rural domestic sewage treatment device of claim 4, wherein: the first driving assembly comprises a threaded rod (24) rotatably connected to the supporting rod (231) and a nut seat (25) in threaded connection with the threaded rod (24), the threaded rod (24) is arranged along the length direction of the supporting rod (231), the nut seat (25) is fixedly connected to the sliding block (232), and the supporting rod (231) is fixedly connected with a first driving motor (26) used for driving the threaded rod (24) to rotate.

6. The rural domestic sewage treatment device of claim 4, wherein: the second driving assembly comprises a driving gear (28) rotatably connected to the side wall of the sewage drainage channel (2) and a driving rack (29) which is slidably connected to the side wall of the sewage drainage channel (2) and rotatably meshed with the driving gear (28), the driving rack (29) is arranged in the vertical direction, the driving rack (29) is fixedly connected with the lifting plate (234), and a second driving motor (30) for driving the driving gear (28) to rotate is fixedly connected to the side wall of the sewage drainage channel (2).

7. The rural domestic sewage treatment device of claim 1, wherein: the third purifies the mechanism including can dismantling filter plate (311) of connecting in sewage collecting pit (3), lay cobble layer (312) on sewage collecting pit (3) bottom surface, filter plate (311) set up and are located the top of cobble layer (312) along the horizontal direction, set up a plurality of filtration pores (32) that link up filter plate (311) face on filter plate (311).

8. The rural domestic sewage treatment device of claim 7, wherein: the aperture of the opening of the filter hole (32) facing to the cobble layer (312) is smaller than that of the opening of the cobble layer (312).