CN114195278A

CN114195278A - Environment-friendly sewage treatment device with automatic cleaning function

Info

Publication number: CN114195278A
Application number: CN202111257594.0A
Authority: CN
Inventors: 张华明; 康正芳; 黄鑫佳
Original assignee: Yancheng Quanhang Technology Co ltd
Current assignee: Yancheng Quanhang Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-18

Abstract

The invention discloses an environment-friendly sewage treatment device with an automatic cleaning function, which comprises a rack, a feeding hole and a collecting chamber, wherein the feeding hole is formed in the upper end of the rack, the rack is divided into an upper layer and a lower layer, a first filtering structure and the collecting chamber are arranged in the rising part of the rack, and a second filtering structure is arranged in the lower layer of the rack; utilize the filter chamber to lead water, make water flow along the inner wall of filter chamber, water can come the inside of purifying barrel this moment, and the inside of purifying barrel is provided with the purification layer, purify water through the purification layer, can drive the purification barrel when water passes through the purification barrel simultaneously and rotate, thereby make the purification barrel friction heat, can make after the purification barrel temperature risees and purify the layer temperature rise, and then clean purifying the layer, later water flows out from the filter layer, and the surface of filter layer has by filterable foreign matter, and the foreign matter can flow downwards under subsequent water impact, thereby realize the cleanness to the filter layer.

Description

Environment-friendly sewage treatment device with automatic cleaning function

Technical Field

The invention relates to the technical field of environmental protection, in particular to an environmental-friendly sewage treatment device with an automatic cleaning function.

Background

The present life is environment protection, which is a general term for various actions taken by humans to solve real or potential environmental problems, coordinate the relationship between humans and the environment, and ensure the sustainable development of economy and society, and the environment protection is particularly important, and can make the surrounding environment better, thereby providing a more comfortable environment and increasing the comfort of life, and along with the development of society, more and more sewage is generated, in order to increase the utilization of water resources, a sewage treatment device is required to be used for purifying sewage, and a general sewage treatment device has some disadvantages when in use, such as:

when the sewage treatment device purifies sewage, the sewage is generally required to be filtered and purified, a filtering mechanism of a general sewage treatment device does not have an automatic cleaning function, foreign matters can be caused to block the filtering mechanism after the device is used for a period of time, so that the filtering effect of the filtering mechanism is reduced, the filtering mechanism can be seriously used or even cannot be normally used, and the sewage treatment device can not normally treat the sewage and is not beneficial to the normal use of the sewage treatment device.

Disclosure of Invention

The invention aims to provide an environment-friendly sewage treatment device with an automatic cleaning function, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an environmental protection is with sewage treatment plant who has self-cleaning function, includes frame, feed inlet and collection room, the upper end of frame is provided with the feed inlet, the frame divide into two-layer from top to bottom, the inside of rising of frame is provided with first filtration and collects the room, the inside second filtration that is provided with of lower floor of frame, the material enters into the upper strata of frame from the feed inlet, then first filtration carries out the first filtration to sewage, and later sewage flows into the inside of second filtration downwards and carries out the second filtration.

Further, the upper lower extreme of frame is the inclined plane, the lower extreme of the upper lower extreme of frame is provided with the collection room, the collection room of collecting the room is provided with the spoiler that a plurality of is the slope form, the side of frame is provided with the baffle that is the slope form, baffle and spoiler are located the inside same one side of frame, can dash the upper lower extreme to the frame under the action of gravity when the material flows down, and the upper lower extreme of frame is the inclined plane, so water can wash the upper strata of frame, thereby make the foreign matter that adheres to in the frame upper strata enter into the inside of collecting the room, and the baffle can lead the foreign matter, and the foreign matter of being convenient for enters into the inside of collecting the room, and the inside of collecting the room is provided with the spoiler, and the spoiler can avoid water to take place backward flow phenomenon, thereby avoid the foreign matter of collecting the room to flow out.

Further, first filtration includes motor and filter vat, the motor sets up the top in the frame, the lower extreme of motor is connected with the filter vat, the filter vat is provided with 2, and 2 filter vats are in the inside symmetry setting of frame, 2 the side of filter vat is provided with fixed gear, and 2 fixed gear are connected for the meshing, and when the device was used, the motor would drive the filter vat and rotate, can drive the filter vat of ortho-position through the fixed gear when the filter vat rotated, can throw away the foreign matter through centrifugal force when the foreign matter is attached to its upper end when the filter vat rotated to accomplish the automatically cleaning to the filter vat.

Further, the side of the filter vat is provided with a plurality of fixing rings, 2 fixing rings on the side of the filter vat are not overlapped, the fixing rings are rotatably arranged in the fixing rings and are provided with a plurality of connecting balls, the lower ends of the connecting balls are symmetrically provided with 2 arc-shaped limiting plates, the inner parts of the 2 limiting plates are movably connected with connecting columns, the upper ends and the lower ends of the connecting columns are spherical, the middle of each connecting column is rod-shaped, the outer side of the lower end of each connecting column is provided with a cleaning brush, when the filter vat rotates, the fixing rings can drive the connecting balls, the limiting plates and the connecting columns to rotate, the limiting plates and the connecting columns can gradually rotate upwards under the action of centrifugal force, and at the moment, the connecting columns can collide with the adjacent filter vat, so that the filter vat is cleaned by vibration of the filter vat, and meanwhile, the filter vat can be cleaned by the cleaning brush, and can take place to rotate when the spliced pole collides, connect ball and limiting plate simultaneously and can take place to rotate, later connect ball, limiting plate and spliced pole recovery normal position under the effect of centrifugal force.

Furthermore, the lower extreme of filter vat is rotated and is connected with the foundation, the foundation runs through the inside of frame, the second filtration is connected to the lower extreme of foundation, the inside of foundation is provided with connecting pipe and siphon, the side of connecting pipe is connected with the side of foundation, the side of siphon is connected with the bottom of foundation, the outside of connecting pipe and the inboard of siphon are connected with first stiffener, the filterable water of process filter vat can flow into its inside, produce the siphonage in the device after the water level risees to make water flow in from the siphon and flow to the inside of second filtration again from the connecting pipe, and first stiffener can increase the stability between connecting pipe and the siphon, because water is stored in the inside on frame upper strata for a long time, so the foreign matter of the aquatic of being convenient for moves down.

Furthermore, the second filtering structure comprises a filtering chamber, a filtering layer and a limiting frame, wherein two sides of the filtering chamber are inclined inwards, the filtering layer is arranged at the lower end of the side face of the filtering chamber, the limiting frame is arranged in the filtering chamber, when water flows into the filtering chamber, the limiting frame can guide the water to limit, so that the water flows along the inclined plane of the filtering chamber and flows downwards through the filtering layer, impurities on the surface of the filtering layer can flow downwards under the impact of water flow, and an air hole for the gas to flow out is formed in the limiting frame.

Further, the inside of filter chamber is provided with the fixed axle, the side of fixed axle is connected with the purification bucket, the inside of purification bucket is provided with a plurality of second stiffener, the fixed mouthful that a plurality of outside diameter is greater than inside diameter is seted up in the outside of purification bucket, the purification layer has been stored to the inside of purification bucket, can pass through the purification bucket when water flows downwards along the filter chamber, because purification bucket and fixed axle are connected for rotating, so can get into the inside of purification bucket from the fixed mouthful when water flows out-of-date, the purification bucket can drive the purification bucket and rotate simultaneously, because the great so rivers of being convenient for of the outside opening of fixed mouthful get into, and the inside opening of fixed mouthful is less, so can prevent to purify the layer outflow, when water is through purifying the layer, it can purify water to purify the layer.

Further, purify the layer and constitute by the active carbon, purification bucket is connected for the laminating with the purification bucket of ortho-position, spacing and filter chamber, because purify the layer and constitute by the active carbon, so purify the layer and can purify water, when purification bucket rubs with the purification bucket of ortho-position, spacing and filter chamber simultaneously, purification bucket can generate heat to make the temperature that purifies the layer rise, and then purify the layer, make the foreign matter that persists in the purification layer flow to the external world through the gas pocket in the spacing.

Further, a discharge hole is arranged at the lower end of the filter chamber, a collecting barrel is connected with the outer side of the discharge hole in a threaded manner, the collecting barrel penetrates through the bottom of the frame and the fixed pipe which is arranged at the lower end of the inner part of the frame, the inner thread of the fixed pipe is connected with a fixed cap, the upper end of the fixed cap is provided with a connecting ring, the connecting ring is attached to the side surfaces of the collecting barrel and the fixed pipe, impurities on the surface of the filter layer can flow into the collecting barrel under the impact of water flow, when the foreign matters in the collecting barrel are stored more, the fixing cap is rotated, because the fixing cap and the connecting ring are rotationally connected, therefore, the fixing cap can be prevented from being subjected to larger resistance when rotating, the fixing cap and the connecting ring can be moved downwards to be taken out from the device, so that the connection ring and the tub are not connected, and then the tub is rotated to be taken out, thereby replacing the tub.

Compared with the prior art, the invention has the following beneficial effects:

1. when the water purifier is used, the filter chamber is utilized to guide water, so that the water flows along the inner wall of the filter chamber, the water can enter the inside of the purification barrel, the purification layer is arranged inside the purification barrel, the water is purified through the purification layer, and the purification barrel is driven to rotate when the water passes through the purification barrel, so that the purification barrel generates heat by friction;

2. when the water filter is used, water flows into the upper layer of the device, the feed inlet is arranged at a certain height, so that the upper layer of the interior of the device can be cleaned when the water enters, foreign matters can conveniently enter the interior of the collection chamber, then the filter barrel can filter the foreign matters in the water, the water can flow downwards after the water level rises to a certain height, sufficient settling time is given to the upper layer of water, meanwhile, the motor can drive the filter barrel to rotate, so that the connecting column knocks the filter barrel, the cleaning brush can clean the surface of the filter barrel, the filtering performance of the filter barrel is ensured, and the filter barrel rotates to generate centrifugal force, so that the foreign matters are thrown out under the action of the centrifugal force, and the filter barrel is cleaned.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall front cross-sectional structural view of the present invention;

FIG. 2 is a schematic view of the bottom cross-sectional view of the interior of the filter basket of the present invention;

FIG. 3 is a schematic view of the mounting structure of the connecting ball and the position limiting plate of the present invention;

FIG. 4 is a schematic view of the interior of the filter basket of the present invention in elevation;

FIG. 5 is a front cross-sectional view of the bottom pillar and filter chamber installation of the present invention;

figure 6 is a schematic view of the filtration chamber and structure of the present invention;

FIG. 7 is a schematic view of the inner structure of the purification tank of the present invention;

fig. 8 is a schematic view of the discharge port and collecting barrel installation structure of the present invention.

In the figure: 1. a frame; 2. a feed inlet; 3. a collection chamber; 4. a baffle plate; 5. a spoiler; 6. an electric motor; 7. a filter vat; 8. fixing a gear; 9. a stationary ring; 10. a connecting ball; 11. a limiting plate; 12. connecting columns; 13. a cleaning brush; 14. a bottom pillar; 15. a connecting pipe; 16. a siphon tube; 17. a filtering chamber; 18. a filter layer; 19. a discharge port; 20. a limiting frame; 21. a fixed shaft; 22. a purifying barrel; 23. a fixed port; 24. a purification layer; 25. a collection barrel; 26. a fixed tube; 27. a fixing cap; 28. a connecting ring; 29. a first reinforcement bar; 30. a second stiffener.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides an environmental protection is with sewage treatment plant who has self-cleaning function, which comprises a frame 1, feed inlet 2 and collection room 3, the upper end of frame 1 is provided with feed inlet 2, two-layer about frame 1 divide into, the inside of rising of frame 1 is provided with first filtration and collects room 3, the inside second filtration that is provided with of lower floor of frame 1, the material enters into the upper strata of frame 1 from feed inlet 2, then first filtration carries out first filtration to sewage, later sewage flows into the inside of second filtration downwards and carries out the second filtration.

The upper lower extreme of frame 1 is the inclined plane, the lower extreme of the upper lower extreme of frame 1 is provided with collects room 3, the collection room 3 of collecting room 3 is provided with spoiler 5 that a plurality of is the slope form, the side of frame 1 is provided with baffle 4 that is the slope form, baffle 4 and spoiler 5 are located 1 inside same one side of frame, can dash the upper lower extreme to frame 1 under the action of gravity when the material flows down, and the upper lower extreme of frame 1 is the inclined plane, so water can be washed the upper strata of frame 1, thereby make the foreign matter that adheres to 1 upper strata of frame enter into the inside of collecting room 3, and baffle 4 can lead to the foreign matter, be convenient for the foreign matter enters into the inside of collecting room 3, and the inside of collecting room 3 is provided with spoiler 5, spoiler 5 can avoid water to take place the backward flow phenomenon, thereby avoid the foreign matter of collecting room 3 to flow out.

The first filtering structure comprises a motor 6 and a filtering barrel 7, the motor 6 is arranged above the rack 1, the lower end of the motor 6 is connected with the filtering barrel 7, the filtering barrel 7 is provided with 2 filtering barrels 7, the 2 filtering barrels 7 are symmetrically arranged in the rack 1, the side faces of the 2 filtering barrels 7 are provided with fixed gears 8, the 2 fixed gears 8 are connected in a meshed mode, when the device is used, the motor 6 can drive the filtering barrel 7 to rotate, when the filtering barrel 7 rotates, the filtering barrel 7 at the adjacent position can be driven to rotate through the fixed gears 8, when the filtering barrel 7 rotates, foreign bodies can be thrown out through centrifugal force when the foreign bodies are attached to the upper end of the filtering barrel 7, and therefore self-cleaning of the filtering barrel 7 is achieved.

The side of the filter vat 7 is provided with a plurality of fixed rings 9, the positions of the fixed rings 9 on the side of 2 filter vats 7 are not overlapped, the inside of the fixed ring 9 is rotatably provided with a plurality of connecting balls 10, the lower end of each connecting ball 10 is symmetrically provided with 2 arc-shaped limiting plates 11, the inside of each 2 limiting plates 11 is movably connected with a connecting column 12, the upper end and the lower end of each connecting column 12 are spherical, the middle of each connecting column 12 is rod-shaped, the outer side of the lower end of each connecting column 12 is provided with a cleaning brush 13, when the filter vat 7 rotates, the fixed rings 9 can drive the connecting balls 10, the limiting plates 11 and the connecting columns 12 to rotate, the limiting plates 11 and the connecting columns 12 can gradually rotate upwards under the action of centrifugal force, at the moment, the connecting columns 12 can collide with the adjacent filter vats 7, and accordingly the filter vats 7 can be cleaned by vibration of the filter vats 7, simultaneously cleaning brush 13 can be cleaned filter vat 7, and can take place to rotate when the spliced pole 12 collides, connects ball 10 and limiting plate 11 simultaneously and can take place to rotate, later connects ball 10, limiting plate 11 and spliced pole 12 recovery normal position under the effect of centrifugal force.

The lower end of the filtering barrel 7 is rotatably connected with a bottom column 14, the bottom column 14 penetrates through the inside of the frame 1, the lower end of the bottom column 14 is connected with a second filtering structure, a connecting pipe 15 and a siphon pipe 16 are arranged inside the bottom column 14, the side surface of the connecting pipe 15 is connected with the side surface of the bottom column 14, the side surface of the siphon pipe 16 is connected with the bottom of the bottom column 14, a first reinforcing rod 29 is connected with the outer side of the connecting pipe 15 and the inner side of the siphon pipe 16, water filtered by the filtering barrel 7 flows into the inner side of the filtering barrel, a siphon phenomenon is generated in the device after the water level rises, so that the water flows into the siphon pipe 16 and then flows into the second filtering structure from the connecting pipe 15, and the first reinforcing rod 29 can increase the stability between the connecting pipe 15 and the siphon pipe 16, and foreign matters in the water can be conveniently moved downwards due to the fact that the water is stored in the upper layer of the frame 1 for a long time.

The second filtering structure comprises a filtering chamber 17, a filtering layer 18 and a limiting frame 20, two sides of the filtering chamber 17 are inclined inwards, the filtering layer 18 is arranged at the lower end of the side face of the filtering chamber 17, the limiting frame 20 is arranged in the filtering chamber 17, when water flows into the filtering chamber 17, the limiting frame 20 can guide the water to limit the water, so that the water flows along the inclined plane of the filtering chamber 17 and then flows downwards through the filtering layer 18, impurities on the surface of the filtering layer 18 can flow downwards under the impact of the water flow, and air holes for the gas to flow out are formed in the limiting frame 20.

The inside of filter chamber 17 is provided with fixed axle 21, the side of fixed axle 21 is connected with purification bucket 22, the inside of purification bucket 22 is provided with a plurality of second stiffener 30, the fixed mouth 23 that a plurality of outside diameter is greater than the inside diameter is seted up to purification bucket 22's the outside, purification layer 24 is stored in purification bucket 22's inside, can pass through purification bucket 22 when water flows down along filter chamber 17, because purification bucket 22 and fixed axle 21 are the rotation connection, so can enter into the inside of purification bucket 22 from fixed mouth 23 when water passes through, purification bucket 22 can drive purification bucket 22 and rotate simultaneously, so be convenient for the rivers entering because the outside opening of fixed mouth 23 is great, and the inside opening of fixed mouth 23 is less, so can prevent to purify layer 24 and flow out, when water passes through purification layer 24, purification layer 24 can purify water.

Purify the layer 24 and constitute by activated carbon, purify bucket 22 and ortho-position purification bucket 22, spacing 20 and filter chamber 17 and be connected for the laminating, because purify layer 24 and constitute by activated carbon, so purify layer 24 and can purify water, when purification bucket 22 rubs with ortho-position purification bucket 22, spacing 20 and filter chamber 17 simultaneously, purification bucket 22 can generate heat, thereby make the temperature rise that purifies layer 24, and then purify layer 24, make the foreign matter that persists in purifying layer 24 flow to the external world through the gas pocket in spacing 20.

The lower end of the filter chamber 17 is provided with a discharge port 19, the outer side of the discharge port 19 is in threaded connection with a collecting barrel 25, the collecting barrel 25 penetrates through the bottom of the frame 1 and a fixed pipe 26, the fixed pipe 26 is arranged at the inner lower end of the frame 1, the inner part of the fixed pipe 26 is in threaded connection with a fixed cap 27, the upper end of the fixed cap 27 is provided with a connecting ring 28, the connecting ring 28 is attached to and connected with the side surfaces of the collecting barrel 25 and the fixed pipe 26, impurities on the surface of the filter layer 18 can flow into the collecting barrel 25 under the impact of water flow, when more foreign matters are stored in the collecting barrel 25, the fixed cap 27 is rotated, because the fixed cap 27 and the connecting ring 28 are in rotational connection, the situation that the fixed cap 27 is subjected to large resistance during rotation can be avoided, the fixed cap 27 and the connecting ring 28 are moved downwards to be taken out of the device, so that the connecting ring 28 and the collecting barrel 25 are not connected, and then the collecting barrel 25 is rotated to be taken out, thereby replacing the collection bucket 25.

The working principle of the invention is as follows:

when water is added into the frame 1, the frame 1 can wash the upper layer of the frame 1, so that foreign matters can flow into the collecting chamber 3 conveniently, then the filter barrel 7 can filter the water, the motor 6 can drive the filter barrel 7 to rotate to throw the foreign matters on the surface of the filter barrel 7 out, and simultaneously can drive the connecting column 12 to knock the filter barrel 7, so that the foreign matters can be separated from the filter barrel 7 conveniently, the cleaning brush 13 can also clean the surface of the filter barrel 7, siphonage is generated along with the rising of the water level in the upper layer of the frame 1, so that the water flows into the filtering chamber 17, the water can pass through the purifying layer 24, so that the water is purified, the purifying barrel 22 can rub to generate heat, so that the purifying layer 24 is cleaned, then the water flow of the water after the water is filtered again by the filtering layer 18 goes downwards, and the subsequent water flow can impact impurities on the surface of the filtering layer 18, so that the surface of the filtering layer 18 is cleaned, the filtering performance of the filter layer 18 is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an environmental protection is with sewage treatment plant who has self-cleaning function, includes frame (1), feed inlet (2) and collection room (3), its characterized in that: the upper end of frame (1) is provided with feed inlet (2), frame (1) divide into two-layer from top to bottom, the inside first filtration that is provided with and collects room (3) of rising of frame (1), the inside second filtration that is provided with of lower floor of frame (1).

2. The sewage treatment device with the automatic cleaning function for environmental protection according to claim 1, characterized in that: the upper lower extreme of frame (1) is the inclined plane, the lower extreme of the upper lower extreme of frame (1) is provided with collects room (3), the collection room (3) of collecting room (3) are provided with spoiler (5) that a plurality of is the slope form, the side of frame (1) is provided with baffle (4) that are the slope form, baffle (4) and spoiler (5) are located frame (1) inside same one side.

3. The sewage treatment device with the automatic cleaning function for environmental protection according to claim 1, characterized in that: first filtration includes motor (6) and filter vat (7), motor (6) set up the top in frame (1), the lower extreme of motor (6) is connected with filter vat (7), filter vat (7) are provided with 2, and 2 filter vats (7) are in the inside symmetry setting of frame (1), 2 the side of filter vat (7) is provided with fixed gear (8), and 2 fixed gear (8) are connected for the meshing.

4. The sewage treatment device with an automatic cleaning function for environmental protection according to claim 3, characterized in that: the side of filter vat (7) is provided with a plurality of retainer plate (9), 2 retainer plate (9) position of filter vat (7) side does not overlap, the inside rotation of retainer plate (9) is provided with a plurality of and connects ball (10), the lower extreme symmetry of connecting ball (10) is provided with 2 curved limiting plate (11), and the inside swing joint of 2 limiting plate (11) has spliced pole (12), the upper and lower both ends of spliced pole (12) are spherical, the centre of spliced pole (12) is the pole shape, the lower extreme outside of spliced pole (12) is provided with cleaning brush (13).

5. The sewage treatment device with an automatic cleaning function for environmental protection according to claim 3, characterized in that: the lower extreme of filter vat (7) is rotated and is connected with foundation (14), the inside of frame (1) is run through in foundation (14), the second filtration is connected to the lower extreme of foundation (14), the inside of foundation (14) is provided with connecting pipe (15) and siphon (16), the side of connecting pipe (15) is connected with the side of foundation (14), the side of siphon (16) is connected with the bottom of foundation (14), the outside of connecting pipe (15) and the inboard of siphon (16) are connected with first stiffener (29).

6. The sewage treatment device with the automatic cleaning function for environmental protection according to claim 5, wherein: the second filtering structure comprises a filtering chamber (17), a filtering layer (18) and a limiting frame (20), wherein two sides of the filtering chamber (17) are inclined inwards, the filtering layer (18) is arranged at the lower end of the side face of the filtering chamber (17), and the limiting frame (20) is arranged inside the filtering chamber (17).

7. The sewage treatment device with the automatic cleaning function for environmental protection according to claim 1, characterized in that: the inside of filter chamber (17) is provided with fixed axle (21), the side of fixed axle (21) is connected with purification bucket (22), the inside of purification bucket (22) is provided with a plurality of second stiffener (30), fixed mouthful (23) that a plurality of outside diameter is greater than inside diameter are seted up in the outside of purification bucket (22), the inside storage of purification bucket (22) has purification layer (24).

8. The sewage treatment device with an automatic cleaning function for environmental protection according to claim 7, wherein: the purification layer (24) is composed of activated carbon, and the purification barrel (22) is connected with the adjacent purification barrel (22), the limiting frame (20) and the filtration chamber (17) in a fitting manner.

9. The sewage treatment device with the automatic cleaning function for environmental protection according to claim 6, wherein: the lower extreme of filter chamber (17) is provided with discharge gate (19), the outside threaded connection of discharge gate (19) has collecting vessel (25), collecting vessel (25) run through the bottom and fixed pipe (26) of frame (1), fixed pipe (26) set up the inside lower extreme in frame (1), the inside threaded connection of fixed pipe (26) has locking cap (27), the upper end of locking cap (27) is provided with go-between (28), the side at collecting vessel (25) and fixed pipe (26) is connected in the laminating of go-between (28).