CN112225268A

CN112225268A - Sewage treatment device

Info

Publication number: CN112225268A
Application number: CN202011076277.4A
Authority: CN
Inventors: 张颂雷; 曹静芳; 惠毓杰; 潘进峰
Original assignee: Jiangsu Xulong Water Co ltd
Current assignee: Jiangsu Xulong Water Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-01-15
Anticipated expiration: 2040-10-10
Also published as: CN112225268B

Abstract

The invention discloses a sewage treatment device, which relates to the technical field of sewage treatment and comprises the following components: sewage treatment pond, driving motor, mount, washing portion, collection portion. The sewage treatment tank is used for treating sewage; the driving motor is arranged above the sewage treatment tank and is used for driving the sewage treatment device; the fixing frame is arranged above the sewage treatment tank; the cleaning part is used for cleaning the sludge on the upper edge of the sewage treatment tank, and the cleaning part is provided with: drive shaft, connecting piece, skew pole, washing piece. The driving shaft penetrates through the fixing frame and is used for driving the cleaning part; the connecting piece is arranged on the driving shaft; one end of the offset rod is arranged on the connecting piece; the cleaning piece is arranged at the other end of the offset rod and used for cleaning sludge. The collecting part is arranged below the cleaning part and used for collecting the cleaned sludge. Through setting up washing portion and collection portion, can wash and collect mud effectively to make the filtration of sewage more effective.

Description

Sewage treatment device

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device.

Background

The sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.

However, in the conventional sewage treatment tank, it is generally necessary to perform stirring to precipitate substances such as sludge, which are heavier than water, in the bottom of the sewage treatment tank and then purify sewage, but this method has a problem that when the stirring is not continued, the sludge adhered to the wall of the sewage treatment tank may fall off, and if the stirring is not continued for a long time, the sludge is left on the upper surface of the sewage, thereby affecting the quality of sewage treatment.

Disclosure of Invention

The invention aims to solve the problem that the existing sewage treatment device can not collect and treat the sludge in the inner wall of the sewage treatment tank.

The second purpose of the invention is to provide a sewage treatment method.

In order to achieve one of the purposes, the invention adopts the following scheme: a sewage treatment apparatus, comprising: sewage treatment pond, driving motor, mount, washing portion, collection portion. The sewage treatment tank is cylindrical and is used for treating industrial sewage; the driving motor is arranged above the sewage treatment tank and is used for driving the sewage treatment device; the fixing frame is arranged above the sewage treatment tank and is cross-shaped, the driving motor is arranged above the fixing part, and the fixing part is used for fixing the sewage treatment device; the washing portion sets up in the inside in sewage treatment pond, and the washing portion is used for wasing the mud or the floater on the last edge in sewage treatment pond, and the washing portion has: the drive shaft, connecting piece, skew pole, washing piece, first rotation axis. The driving shaft and the sewage treatment tank are arranged in the same axial direction, the driving shaft penetrates through the fixing frame and is driven by the driving motor, and the driving shaft is used for driving the cleaning part; the connecting piece is arranged on the driving shaft and is arranged in the same axial direction with the driving shaft; the number of the offset rods is multiple, one end of each offset rod is arranged on the connecting piece, and the offset rods and the connecting pieces are arranged in different axial directions; the cleaning pieces are arranged at the other end of the offset rod, the number of the cleaning pieces is the same as that of the offset rod, the outer sides of the cleaning pieces are attached to the inner wall of the sewage treatment tank, and the cleaning pieces are used for cleaning sludge or floating objects adhered to the inner wall of the sewage treatment tank; the first rotating shafts are installed between the connecting pieces and the offset levers, and the number of the first rotating shafts is the same as that of the offset levers, and the first rotating shafts enable the offset levers to make a certain angle offset with respect to the connecting pieces. The collecting part is arranged below the cleaning part and is used for collecting the cleaned sludge or floating objects.

Preferably, the driving motor is provided with a first bevel gear, the first bevel gear and the driving motor are arranged in the same axial direction, and the driving motor drives the first bevel gear to rotate.

Preferably, the cleaning part is further provided with a second bevel gear, the second bevel gear is installed at the upper end of the driving shaft and arranged above the fixing frame, the second bevel gear is matched with the first bevel gear, and the first bevel gear rotates to drive the second bevel gear to rotate so as to drive the driving shaft to rotate.

Preferably, the cleaning part further has: connecting plate, spring, protection casing. The connecting plates are arranged on the connecting pieces, the number of the connecting plates is the same as that of the offset rods, the connecting plates are arranged behind the offset rods, and the connecting plates are used for blocking the offset rods from deviating in a large angle; the two ends of the spring are respectively connected with the offset rod and the connecting plate, the number of the springs is the same as that of the offset rods, and the springs are used for enabling the offset rods to reset; the protection casing sets up in the periphery of spring, and the protection casing is same axial direction with the spring, and skew pole and connecting plate are connected respectively to the both ends of protection casing, and the quantity of protection casing is the same with the quantity of skew pole, and the protection casing is arranged in preventing that the mud in the sewage from getting into the spring to influence the performance of spring, thereby influence the abluent effect of mud.

Preferably, the cleaning part is further provided with a first fixing piece, the first fixing piece is arranged on the driving shaft, the first fixing piece and the driving shaft are arranged in the same axial direction, and the first fixing piece is used for fixing the collecting part.

Preferably, the collecting part has: bottom plate, bearing cap. The bottom plate is arranged at the lower end of the driving shaft and is a disc-shaped object, and the bottom plate and the driving shaft are arranged in the same axial direction; the bearing is arranged on the bottom plate, the bearing and the driving shaft are arranged in the same axial direction, and the bearing is used for preventing the bottom plate from rotating along with the driving shaft; the bearing cover is installed on the bearing, and the bearing cover is used for preventing sludge or other substances in the sewage from entering the bearing, thereby influencing the operation of the collecting part.

Preferably, the collecting part further has a second fixing member mounted on the base plate, the second fixing member having a plurality.

Preferably, the collecting part further comprises gathering rods, the gathering rods are mounted on the second fixing member, the number of the gathering rods is the same as that of the second fixing member, and the gathering rods are used for collecting sludge and driftage in the sewage.

Preferably, the collecting part further has a collecting member for collecting sludge and drifter in the sewage.

Preferably, the collecting member further has rollers installed at the upper end of the gathering rods, the number of the rollers being the same as the number of the gathering rods.

In order to achieve the second purpose, the invention adopts the following technical scheme: a sewage treatment method comprises the following steps:

starting, driving a motor to rotate forwards to drive a first bevel gear to rotate, so as to drive a second bevel gear matched with the first bevel gear to rotate, and further drive a driving shaft connected with the second bevel gear to rotate;

cleaning, wherein the driving shaft drives the connecting piece to rotate, so that the offset rod connected with the connecting rod is driven to rotate, and the cleaning piece connected with the offset rod is driven to rotate, so that sludge and floating objects floating on the water surface in the sewage treatment tank are cleaned;

the collection expandes, and the drive shaft drives the rotor plate and rotates to drive the first tooth that sets up on the rotor plate and rotate, thereby drive and move with first tooth complex draw in the pole in, thereby drive the action that draws in the pole in and open and shut, thereby will expand with the collection piece that draws in the pole and be connected in, collect mud and drift thing in the sewage.

Preferably, for the cleaning step, when the cleaning member encounters large sludge or drifter, the cleaning member moves backward, and when the cleaning member moves to a certain extent, a spring mounted on the cleaning member compresses, thereby increasing the cleaning of the sludge or drifter.

Preferably, in the unfolding and collecting step, the second tooth at one end of the furling rod is matched with the first tooth, when the first tooth rotates, the second tooth rotates along the first tooth, the furling rod is provided with a second rotating shaft, and the furling rod rotates through the second rotating shaft, so that the collection piece connected with the furling rod is unfolded.

Preferably, to above-mentioned expansion in the collection step, when drawing in the pole and being close sewage treatment pond, install the gyro wheel that draws in on the pole and contact with the inner wall in sewage treatment pond, the gyro wheel can adapt to the inner wall in sewage treatment pond, when having polylith unevenness's mud on the inner wall in sewage treatment pond, the gyro wheel can make and draw in the pole and carry out the adaptability adjustment in the adaptation inner wall to the sewage treatment pond that has mud.

Preferably, there are also the following steps: draw in the collection, driving motor reversal drives first bevel gear and rotates to the second bevel gear that drives and first bevel gear is connected rotates, thereby drives the drive shaft and rotates, thereby makes the rotor plate with the drive shaft connection rotate, thereby drives the action of drawing in the pole and drawing in and carrying out drawing in, thereby collects the bottom to collecting the piece with mud and the floater on the collection piece.

The invention has the beneficial effects that:

through being provided with the gyro wheel, the gyro wheel is installed in the upper end of drawing in the pole in, can make through the gyro wheel draw in the pole in when contacting sewage treatment pond inner wall in, earlier with the gyro wheel contact, can make draw in the pole in and when expanding the action, adapt to the inner wall in sewage treatment pond, make mud on the sewage treatment pond inner wall can not influence the collection work, be provided with simultaneously and draw in the pole in and collect the bottom that can make mud can not drop to the sewage treatment pond when collecting to influence the quality of sewage.

Drawings

FIG. 1 is a schematic perspective view of a sewage treatment apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view of a sewage treatment apparatus according to an embodiment of the present invention.

FIG. 3 is a schematic perspective view of a cleaning part and a collecting part of a sewage treatment apparatus according to an embodiment of the present invention.

FIG. 4 is a schematic bottom view of a cleaning part of a sewage treatment apparatus according to an embodiment of the present invention.

Fig. 5 is an enlarged partial sectional view a of fig. 4.

FIG. 6 is a schematic front view of a cleaning part and a collecting part of a sewage treatment apparatus according to an embodiment of the present invention.

FIG. 7 is a schematic front view of a collecting part of a sewage treatment apparatus according to an embodiment of the present invention.

FIG. 8 is a schematic sectional view of a collecting part of a sewage treatment apparatus according to an embodiment of the present invention.

Fig. 9 is a partially enlarged view B of fig. 8.

Fig. 10 is a partial enlarged view of C of fig. 8.

Fig. 11 is a partial enlarged view D of fig. 8.

FIG. 12 is a schematic view showing the movement of a collecting part of a sewage treatment apparatus according to an embodiment of the present invention.

100. Sewage treatment pool

200. Drive motor 201, first bevel gear

300. Fixing frame

400. Cleaning part 401, second bevel gear 402, and drive shaft

403. Connecting piece 404, excursion pole 405, cleaning member

406. Protective cover 407, first rotation shaft 408, connection plate

409. Spring 410, rotary plate 4101 and first tooth

411. First fixed part

500. Collecting part 501, bottom plate 502 and second fixing piece

503. Second rotating shaft 504, furling rod 5041 and second tooth

5042. Clamping opening 505, bearing cover 506 and bearing

507. Collecting piece 5071, fastener 508 and roller

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are illustrative of only one embodiment of the invention and are not to be construed as limiting the invention, and that all other embodiments, which can be derived by one of ordinary skill in the art without undue experimentation, are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the terms in the present invention can be understood in a specific case to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

The first embodiment is as follows:

as shown in fig. 1 to 4, a sewage treatment apparatus includes: a sewage treatment tank 100, a driving motor 200, a fixing frame 300, a cleaning part 400 and a collecting part 500. The sewage treatment tank 100 is cylindrical, and the sewage treatment tank 100 is used for treating industrial sewage; the driving motor 200 is disposed above the sewage treatment tank 100, and the driving motor 200 is used for driving the sewage treatment apparatus; the fixing frame 300 is installed above the sewage treatment tank 100, the fixing frame 300 is cross-shaped, the driving motor 200 is installed above the fixing part, and the fixing part is used for fixing the sewage treatment device; cleaning unit 400 is provided inside sewage treatment tank 100, and cleaning unit 400 is used for cleaning the mud or the floater on the upper edge of sewage treatment tank 100, and cleaning unit 400 has: drive shaft 402, connecting member 403, offset rod 404, cleaning member 405, first rotation shaft 407. The driving shaft 402 is disposed in the same axial direction as the sewage treatment tank 100, the driving shaft 402 passes through the fixing frame 300, the driving shaft 402 is driven by the driving motor 200, and the driving shaft 402 is used for driving the cleaning part 400; the connecting piece 403 is installed on the driving shaft 402, and the connecting piece 403 and the driving shaft 402 are arranged in the same axial direction; the offset rods 404 are provided with a plurality of rods, one end of each offset rod 404 is arranged on the connecting piece 403, and the offset rods 404 and the connecting pieces 403 are arranged in different axial directions; cleaning pieces 405 are installed on the other end of the offset rod 404, the number of the cleaning pieces 405 is the same as that of the offset rod 404, the outer side of each cleaning piece 405 is attached to the inner wall of the sewage treatment tank 100, and the cleaning pieces 405 are used for cleaning sludge or floating objects adhered to the inner wall of the sewage treatment tank 100; first rotation shafts 407 are installed between the connection member 403 and the offset levers 404, the number of the first rotation shafts 407 is the same as the number of the offset levers 404, and the first rotation shafts 407 allow the offset levers 404 to be angularly offset with respect to the connection member 403. The collecting part 500 is installed below the washing part 400, and the collecting part 500 is used to collect the washed sludge or floating objects.

Further, a first bevel gear 201 is mounted on the driving motor 200, the first bevel gear 201 and the driving motor 200 are arranged in the same axial direction, and the driving motor 200 drives the first bevel gear 201 to rotate.

Further, the cleaning part 400 further has a second bevel gear 401, the second bevel gear 401 is installed at the upper end of the driving shaft 402, the second bevel gear 401 is disposed above the fixing frame 300, the second bevel gear 401 is matched with the first bevel gear 201, and the first bevel gear 201 rotates to drive the second bevel gear 401 to rotate, so as to drive the driving shaft 402 to rotate.

Further, the cleaning unit 400 includes: connecting plate 408, spring 409, shield 406. The connecting plates 408 are arranged on the connecting pieces 403, the number of the connecting plates 408 is the same as that of the offset rods 404, the connecting plates 408 are arranged behind the offset rods 404, and the connecting plates 408 are used for blocking the offset rods 404 from large-angle offset; two ends of a spring 409 are respectively connected with the offset rod 404 and the connecting plate 408, the number of the springs 409 is the same as that of the offset rods 404, and the springs 409 are used for resetting the offset rods 404; the protection cover 406 is arranged on the periphery of the spring 409, the protection cover 406 and the spring 409 are in the same axial direction, two ends of the protection cover 406 are respectively connected with the deviation rods 404 and the connecting plate 408, the number of the protection covers 406 is the same as that of the deviation rods 404, and the protection cover 406 is used for preventing sludge in sewage from entering the spring 409, so that the performance of the spring 409 is influenced, and the sludge cleaning effect is influenced.

Further, the cleaning part 400 further has a first fixing member 411, the first fixing member 411 is disposed on the driving shaft 402, the first fixing member 411 is disposed in the same axial direction as the driving shaft 402, and the first fixing member 411 is used for fixing the collecting part 500.

Further, the collecting unit 500 includes: a bottom plate 501, a bearing 506 and a bearing cover 505. The bottom plate 501 is arranged at the lower end of the driving shaft 402, the bottom plate 501 is a disc-shaped object, and the bottom plate 501 and the driving shaft 402 are arranged in the same axial direction; the bearing 506 is installed on the bottom plate 501, the bearing 506 and the driving shaft 402 are arranged in the same axial direction, and the bearing 506 is used for preventing the bottom plate 501 from rotating along with the rotation; a bearing cap 505 is mounted on the bearing 506, and the bearing cap 505 prevents sludge or other substances in the sewage from entering the bearing 506, thereby affecting the operation of the collecting part 500.

Further, the collecting unit 500 further includes a second fixing member 502, the second fixing member 502 is mounted on the bottom plate 501, and the second fixing member 502 includes a plurality of members.

Further, the collecting part 500 further has collecting rods 504, the collecting rods 504 are mounted on the second fixing member 502, the number of the collecting rods 504 is the same as that of the second fixing member 502, and the collecting rods 504 are used for collecting sludge and driftage in the sewage.

Further, the collecting part 500 further has a collecting member 507, and the collecting member 507 is used for collecting sludge and driftage in the sewage.

Further, the collecting part 500 further has rollers 508, the rollers 508 are installed at the upper end of the furling rod 504, the number of the rollers 508 is the same as the number of the furling rods 504, the furling rods 504 can be firstly contacted with the rollers 508 when contacting the inner wall of the sewage treatment tank 100 through the rollers 508, and the furling rods 504 can be adapted to the inner wall of the sewage treatment tank 100 when being unfolded through the rollers 508, so that the sludge on the inner wall of the sewage treatment tank 100 cannot influence the collecting work.

Further, the inner side of the cleaning member 405 is arc-shaped, and the outer side of the cleaning member 405 is attached to the inner wall of the sewage treatment tank 100.

Further, the lower end of the collector 507 has a snap 5071, the snap 5071 is connected to the first fixing member 411, and the lower end of the collector 507 is fixed to the first fixing member 411 by the snap 5071.

Further, the cleaning unit 400 further includes a rotating plate 410, the rotating plate 410 has a disk shape, the rotating plate 410 is provided on the drive shaft 402, the rotating plate 410 further includes first teeth 4101, the first teeth 4101 are provided to rotate along the rotating plate 410, and the first teeth 4101 can be rotated by the rotation of the rotating plate 410.

Further, the collecting part 500 further includes second rotating shafts 503, the number of the second rotating shafts 503 is the same as that of the furling rods 504, the second rotating shafts 503 are mounted on the second fixing part 502, the second rotating shafts 503 are movably connected with the furling rods 504, and the furling rods 504 can rotate to a certain degree through the second rotating shafts 503, so that the furling rods 504 can perform an outward unfolding or inward furling action, thereby completing the collection of the sludge or the floating objects.

Further, the lower end of the furling rod 504 is provided with a second tooth 5041, the second tooth 5041 is matched with the first tooth 4101, when the rotating plate 410 rotates, the first tooth 4101 arranged on the rotating plate 410 rotates to drive the second tooth 5041 to rotate, so that the furling rod 504 is driven to rotate to a certain degree along the second rotating shaft 503, so that the furling rod 504 can be unfolded outwards or furled inwards, the upper end of the furling rod 504 is provided with a clamping opening 5042, the clamping opening 5042 is connected with the upper end of the collecting piece 507, so that the upper end and the lower end of the collecting piece 507 can be fixed, and the collecting piece 507 can be unfolded and furled through the furling piece, so that the collection of sludge or floating objects is completed.

Example two:

a sewage treatment method comprises the following steps:

starting, the driving motor 200 rotates forward to drive the first bevel gear 201 to rotate, so as to drive the second bevel gear 401 matched with the first bevel gear 201 to rotate, and further drive the driving shaft 402 connected with the second bevel gear 401 to rotate;

cleaning, the driving shaft 402 drives the connecting member 403 to rotate, so as to drive the offset rod 404 connected with the connecting rod to rotate, and further drive the cleaning member 405 connected with the offset rod 404 to rotate, so as to clean the sludge and the floating objects floating on the water surface in the sewage treatment tank 100;

the collection is expanded, and drive shaft 402 drives rotor plate 410 and rotates to the drive sets up first tooth 4101 on rotor plate 410 and rotates, thereby drives and moves with first tooth 4101 complex draw in pole 504, thereby drives and draws in pole 504 and carry out the action that opens and shuts, thereby expandes the collection piece 507 of being connected with drawing in pole 504, collects mud and drift thing in the sewage.

Further, for the cleaning step, when the cleaning member 405 encounters large sludge or drifter, the cleaning member 405 moves backward, and when the cleaning member 405 moves to a certain extent, the spring 409 installed on the cleaning member 405 compresses, thereby increasing the cleaning of the sludge or drifter.

Further, in the unfolding and collecting step, the second tooth 5041 on one end of the folding rod 504 is engaged with the first tooth 4101, when the first tooth 4101 rotates, the second tooth 5041 rotates along the first tooth 4101, the folding rod 504 is provided with the second rotating shaft 503, and the folding rod 504 rotates through the second rotating shaft 503, so that the collection member 507 connected with the folding rod 504 is unfolded.

Further, to the above-mentioned collection step that opens, when drawing in the pole 504 and being close to sewage treatment pond 100, install the gyro wheel 508 that draws in on the pole 504 and contact with the inner wall of sewage treatment pond 100, gyro wheel 508 can adapt to the inner wall of sewage treatment pond 100, when having polylith unevenness's mud on the inner wall of sewage treatment pond 100, gyro wheel 508 can make and draw in pole 504 and carry out the adaptability and adjust in the adaptation has the sewage treatment pond 100 of mud in the inner wall.

Further, the method also comprises the following steps: collecting and collecting, wherein the driving motor 200 rotates reversely to drive the first bevel gear 201 to rotate, so as to drive the second bevel gear 401 connected with the first bevel gear 201 to rotate, so as to drive the driving shaft 402 to rotate, so as to rotate the rotating plate 410 connected with the driving shaft 402, so as to drive the collecting rod 504 to collect, and thus, sludge and floating objects on the collecting part 507 are collected to the bottom of the collecting part 507.

Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.

Claims

1. A sewage treatment apparatus, comprising:

the sewage treatment tank is cylindrical and is used for treating industrial sewage;

the driving motor is arranged above the sewage treatment tank and is used for driving the sewage treatment device;

the fixing frame is arranged above the sewage treatment tank and is in a cross shape, the driving motor is arranged above the fixing part, and the fixing part is used for fixing the sewage treatment device;

a cleaning part, the cleaning part is provided in the inside of the sewage treatment tank, the cleaning part is used for cleaning the sludge or the floaters on the upper edge of the sewage treatment tank, the cleaning part is provided with:

the driving shaft and the sewage treatment tank are arranged in the same axial direction, the driving shaft penetrates through the fixing frame, the driving shaft is driven by the driving motor, and the driving shaft is used for driving the cleaning part;

the connecting piece is arranged on the driving shaft and is arranged in the same axial direction with the driving shaft;

the number of the offset rods is multiple, one end of each offset rod is installed on the connecting piece, and the offset rods and the connecting pieces are arranged in different axial directions;

the cleaning pieces are arranged at the other ends of the offset rods, the number of the cleaning pieces is the same as that of the offset rods, the outer sides of the cleaning pieces are attached to the inner wall of the sewage treatment tank, and the cleaning pieces are used for cleaning sludge or floating objects adhered to the inner wall of the sewage treatment tank;

a first rotation shaft installed between the link and the offset levers, the number of the first rotation shafts being the same as the number of the offset levers, the first rotation shaft allowing the offset levers to be angularly offset with respect to the link;

the collecting part is arranged below the cleaning part and used for collecting the cleaned sludge or floating objects.

2. The sewage treatment device according to claim 1, wherein the driving motor is provided with a first bevel gear, the first bevel gear and the driving motor are arranged in the same axial direction, and the driving motor drives the first bevel gear to rotate.

3. The sewage treatment device according to claim 2, wherein the cleaning part further comprises a second bevel gear, the second bevel gear is mounted on the upper end of the driving shaft, the second bevel gear is disposed above the fixing frame, the second bevel gear is matched with the first bevel gear, and the first bevel gear rotates to drive the second bevel gear to rotate, so as to drive the driving shaft to rotate.

4. The sewage treatment apparatus according to claim 1, wherein said cleaning portion further has:

the connecting plates are arranged on the connecting pieces, the number of the connecting plates is the same as that of the offset rods, the connecting plates are arranged behind the offset rods, and the connecting plates are used for blocking the offset rods from deviating in a large angle;

a spring; two ends of the spring are respectively connected with the offset rod and the connecting plate, the number of the springs is the same as that of the offset rods, and the springs are used for enabling the offset rods to reset;

the protection casing, the protection casing sets up the periphery of spring, the protection casing with the spring is same axial direction, the both ends of protection casing are connected respectively the skew pole with the connecting plate, the quantity of protection casing with the quantity of skew pole is the same, the protection casing is used for preventing the mud in the sewage from getting into in the spring, thereby the influence the performance of spring to influence the abluent effect of mud.

5. The sewage treatment apparatus according to claim 1, wherein the cleaning section further comprises a first fixing member disposed on the driving shaft, the first fixing member being disposed in the same axial direction as the driving shaft, the first fixing member being configured to fix the collecting section.

6. The sewage treatment apparatus according to claim 1, wherein said collecting portion has:

the bottom plate is arranged at the lower end of the driving shaft, is a disc-shaped object and is arranged in the same axial direction with the driving shaft;

the bearing is arranged on the bottom plate, the bearing and the driving shaft are arranged in the same axial direction, and the bearing is used for preventing the bottom plate from rotating along with the driving shaft;

a bearing cap mounted on the bearing, the bearing cap for preventing sludge or other substances in the sewage from entering the bearing, thereby affecting the operation of the collecting part.

7. The sewage treatment apparatus according to claim 6 wherein said collecting section further has a second fixing member, said second fixing member being mounted on said bottom plate, said second fixing member having a plurality.

8. The sewage treatment apparatus according to claim 7, wherein the collecting part further has furling rods installed on the second fixing member, the number of the furling rods is the same as that of the second fixing member, and the furling rods are used for collecting sludge and drifter in the sewage.

9. The sewage treatment apparatus according to claim 1, wherein said collecting portion further has a collecting member for collecting sludge and drifter in the sewage.

10. The wastewater treatment plant according to claim 8, wherein said collecting member further comprises rollers mounted on the upper end of said furling rods, and the number of said rollers is the same as the number of said furling rods.