CN213231757U

CN213231757U - Automatic sewage treatment plant of clearance

Info

Publication number: CN213231757U
Application number: CN202021936414.2U
Authority: CN
Inventors: 汤超; 关娇娇
Original assignee: Chongqing Water Resources and Electric Engineering College
Current assignee: Chongqing Water Resources and Electric Engineering College
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-05-18
Anticipated expiration: 2030-09-08

Abstract

The utility model provides an automatic cleaning sewage treatment device, which comprises an inner cylinder (1), an outer cylinder (2), an upper cover (3) and a bottom plate (4); wherein, a through hole (11) which is inclined downwards is arranged on the inner cylinder (1); the outer cylinder is a three-component structure consisting of a water-resistant layer (21), a filter layer (22) and a rigid connecting layer (23); the upper cover (3) is sequentially provided with a driving motor (31), a driving shaft (32), a sleeve (34) and a water inlet pipe (35); a bearing seat (33) is arranged on the bottom plate (4); the sleeve (34) is provided with a cleaning brush (341) shaped like an x and an annular filter plate (342) for cleaning and collecting. The device sequentially separates large granular substances, precipitates small granular substances and adsorbs pollution ions, so that the water quality after sewage filtration is effectively ensured; simultaneously, it can realize automatic clearance, avoids particulate matter to block up the filtration pore, guarantees clearance and filter effect, avoids the waste of manpower and materials.

Description

Automatic sewage treatment plant of clearance

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to automatic sewage treatment plant of clearance.

Background

In modern life, particularly along with the increasingly deepening urbanization, the living density of people is continuously increased; the increase in population density has led to an increase in domestic wastewater and some other everyday emissions. Meanwhile, with the improvement of living standard of people and the gradual development of urban construction, industrial wastewater, construction site sewage and the like are increasing day by day. The problem of urban pollution, especially domestic sewage and industrial sewage, is becoming more and more serious.

The topics about water pollution are continuously raised, particularly the problem of underground water pollution, along with the continuous aggravation of water resource pollution, the environmental protection consciousness of people is also continuously aroused, and the concern degree of the water pollution reaches the unprecedented level. 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. When the existing sewage treatment device with the solid-liquid separation function is used, filter holes are easy to block, so that the solid-liquid separation efficiency is influenced, and then the cleaning device is inconvenient to install and disassemble, so that the device is inconvenient to replace when damaged; or the sewage treatment device in the prior art needs to be frequently detached to wash, so that the filter layer is prevented from being blocked, the great waste of manpower and material resources is caused, and the usability and the sealing performance of the device are also affected by frequent detachment.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model aims to provide an automatic cleaning sewage treatment device which can effectively cut off solid matters and granular matters in sewage and has high filtering efficiency and good effect; simultaneously, the device can realize brushing, avoiding filtering mesh to block up the automation of filter screen, also avoids often dismantling extravagant manpower and materials and cost.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides an automatic sewage treatment plant of clearance, includes the processing apparatus body, its characterized in that: the processing device body is of a cylindrical structure and comprises an inner cylinder, an outer cylinder, an upper cover and a bottom plate; the central axes of the inner cylinder and the outer cylinder are on the same straight line, the inner cylinder and the outer cylinder are fixedly connected with the bottom plate in a sealing way, the lower surface of the upper cover is contacted with the upper ends of the inner cylinder and the outer cylinder, and the upper cover is connected with the outer cylinder through a fixing mechanism;

the middle part of the upper surface of the upper cover is fixedly connected with a driving motor, one side of the driving motor is provided with a water inlet pipe, the water inlet pipe penetrates through the upper cover and extends into the inner cylinder, the water inlet pipe is used for introducing sewage into the treatment device, the water inlet pipe is positioned at the upper end of the upper cover and is connected with a branch pipe which inclines upwards, and one end of the branch pipe, which is far away from the water inlet pipe, is provided with a liquid level sensor; the output end of the driving motor is fixedly connected with a driving shaft, the driving shaft penetrates through the upper cover and extends into the inner cylinder, the central axis of the driving shaft is collinear with the central axis of the inner cylinder, a bearing seat is arranged on the upper surface of the bottom plate corresponding to the driving shaft, one end of the driving shaft, far away from the upper cover, is connected with the bearing seat, and threads are arranged on the outer surface of the driving shaft, between the upper cover and the bearing seat; the driving shaft is positioned at the inner cylinder part and is sleeved with a sleeve, the sleeve is in threaded connection with the driving shaft, the initial position of the sleeve is positioned at the top end of the inner cylinder, one end of the sleeve, which is close to the upper cover, is fixedly sleeved with an annular filter plate, one end of the sleeve, which is far away from the upper cover, is fixedly sleeved with a cleaning brush in a shape like the Chinese character 'xing', the outer wall of the annular filter plate is not contacted with the inner wall of the inner cylinder, the cleaning brush in the shape like the Chinese character 'xing' comprises annular rods in the shape like the Chinese character 'xing' and a hairbrush, the upper surface of each annular rod in the shape like the Chinese character 'xing' is not contacted with the lower surface of the annular filter plate, and; a plurality of downward inclined through holes are uniformly distributed on the inner cylinder wall, and the through holes with the same cross section correspond to the star-shaped annular rods; the outer barrel is of a three-layer structure from bottom to top and is respectively provided with a water-resistant layer, a filter layer and a rigid connecting layer, the water-resistant layer is fixedly connected with the bottom plate in a sealing mode, and the rigid connecting layer is in contact with the upper cover.

The fixing mechanism comprises four clamping grooves, fixing grooves, springs, sliding rods, sliding chutes, push rods, pushing holes and fixing plates, the four clamping grooves are respectively formed in the outer walls of the two sides of the rigid connecting layer, the outer side of the upper cover is turned downwards, the inner side walls of the two sides of the upper cover are respectively provided with one fixing groove corresponding to the clamping grooves, the bottoms of the four fixing grooves are respectively fixedly connected with one spring, one ends of the four springs, far away from the bottoms of the fixing grooves, are respectively fixedly connected with one sliding rod, and one ends of the sliding rods, far away from the springs, extend into the corresponding clamping grooves; the sliding groove is formed in the upper end rod wall of the sliding rod, which is positioned in the fixing groove, and is in a right-angled triangle shape, one right-angled edge of the sliding groove and the upper surface of the sliding rod are in the same plane, one end, far away from the spring, of the inclined edge of the sliding groove is lower than one end, close to the spring, of the inclined edge of the sliding groove, and one end, far away from the spring, of the sliding groove is positioned in the clamping groove; the upper cover of fixed slot upper end, correspond four the one end that the hypotenuse of spout is close to the spring sets up four promotion holes that run through respectively (promote the hole to run through promptly the upper cover), four promote downthehole sliding connection catch bar respectively, the catch bar upper end is run through the promotion hole that corresponds and is extended to the upside fixed connection fixed plate of upper cover, the catch bar lower extreme runs through corresponding promotion hole and corresponds the spout hypotenuse is close to the one end notch of spring offsets.

And the output end of the driving motor is fixedly connected with the driving shaft through a coupler.

Preferably, the driving shaft is rotatably connected with the upper cover through a bearing.

Further preferably, the diameter of the meshes of the annular filter plate is smaller than the radius of the through holes.

In order to further optimize, in order to reduce the resistance of the 'X' -shaped cleaning brush, a plurality of filter holes penetrating through the 'X' -shaped annular rod are formed in the 'X' -shaped annular rod, and the central axes of the filter holes are parallel to the central axis of the driving shaft.

Further optimization is carried out, and the height ratio of the water-resisting layer, the filtering layer and the rigid connecting layer is 4-5: 5-6: 0.3-0.5.

Further optimization is carried out, and in order to ensure that the sealing property between the upper cover and the outer barrel and between the upper cover and the inner barrel is good, sealing rings are arranged at the joints of the lower end of the upper cover and the upper ends of the inner barrel and the outer barrel.

And further optimizing, wherein the liquid level sensor is electrically connected with the driving motor.

In a further optimization, a one-way circulation valve is arranged on the water inlet pipe.

The utility model discloses has following technological effect:

the utility model effectively realizes the separation of large particle suspended matters and liquid in the sewage through the through holes of the inner cylinder; meanwhile, whether the through hole of the inner barrel is blocked or not can be accurately judged through a liquid level sensor in the branch pipe, so that a driving motor is started; through drive shaft and telescopic cooperation, realize telescopic downstream to drive the moving down of annular filter and "#" font cleaning brush, "#" font cleaning brush move down accurate, the efficient clears up the plug in the through-hole, the annular filter gathers the plug of clearing up in, prevents that the plug from suspending including in section of thick bamboo liquid and then the condition that the secondary blockked up appears, final suspended solid follows annular filter and gathers the inner tube bottom, convenient clearance. Through the design of the three-layer structure of the outer barrel, the liquid after solid-liquid separation in the inner barrel is ensured to be further precipitated (mainly small particulate matters such as silt and the like in the sewage are precipitated and separated), and then other impurities (such as heavy metal ions, pigment molecules and the like) in the sewage are adsorbed by the filter layer.

The utility model has simple structure, and can sequentially separate large granular substances, precipitate small granular substances and adsorb pollution ions, thereby effectively ensuring the water quality after sewage filtration; and simultaneously, the utility model discloses can realize automatic clearance, avoid particulate matter to block up the filtration pore, guarantee the clearance effect, effectively avoid often dismantling extravagant manpower and materials and reducing mechanism life-span.

Drawings

Fig. 1 is a schematic structural diagram of a sewage treatment device in an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a partially enlarged view of fig. 1 in the direction B.

Fig. 4 is a partially enlarged view of fig. 1 taken along line C.

Fig. 5 is a partial enlarged view of fig. 1 taken along line D.

Fig. 6 is a schematic structural view of the sleeve and the "+" shaped cleaning brush in the embodiment of the present invention.

Fig. 7 is a schematic structural view of a sliding rod according to an embodiment of the present invention.

10, processing the device body; 1. an inner barrel; 11. a through hole; 2. an outer cylinder; 21. a water resistant layer; 22. a filter layer; 23. a rigid connection layer; 3. an upper cover; 31. a drive motor; 32. a drive shaft; 33. a bearing seat; 34. a sleeve; 341. a "+" shaped cleaning brush; 3411. filtering holes; 3412. a "+" annular stem; 3413. a brush; 342. an annular filter plate; 35. a water inlet pipe; 351. a one-way flow valve; 352. a branch pipe; 3521. a liquid level sensor; 4. a base plate; 5. a fixing mechanism; 51. a card slot; 52. fixing grooves; 53. a spring; 54. a slide bar; 55. a chute; 56. a push rod; 57. a push hole; 58 hold the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

as shown in FIGS. 1 to 7, an automatic cleaning sewage treatment device comprises a treatment device body 10, and is characterized in that: the processing device body 10 is a cylindrical structure and comprises an inner cylinder 1, an outer cylinder 2, an upper cover 3 and a bottom plate 4; the central axes of the inner cylinder 1 and the outer cylinder 2 are on the same straight line, the inner cylinder 1, the outer cylinder 2 and the bottom plate 4 are fixedly connected in a sealing way, the lower surface of the upper cover 3 is contacted with the upper ends of the inner cylinder 1 and the outer cylinder 2, and the upper cover 3 is connected with the outer cylinder 2 through the fixing mechanism 5; in order to ensure good sealing performance between the upper cover 3 and the outer cylinder 2 and the inner cylinder 1, sealing rings are arranged at the joints of the lower end of the upper cover 3 and the upper ends of the inner cylinder 1 and the outer cylinder 2.

The middle part of the upper surface of the upper cover 3 is fixedly connected with a driving motor 31, one side of the driving motor 31 is provided with a water inlet pipe 35, the water inlet pipe 35 penetrates through the upper cover 31 and extends into the inner cylinder 1, the water inlet pipe 35 is used for introducing sewage into the treatment device, the water inlet pipe 35 is positioned at the upper end of the upper cover 3 and is connected with a branch pipe 352 which inclines upwards, and one end of the branch pipe 352, which is far away from the water inlet pipe 35, is provided with a liquid level; the liquid level sensor 3521 is electrically connected with the driving motor 31; the inlet pipe 35 is provided with a one-way flow valve 351. The output end of the driving motor 31 is fixedly connected with a driving shaft 32 through a coupling, the driving shaft 32 penetrates through the upper cover 3 and extends into the inner cylinder 2, the central axis of the driving shaft 32 is collinear with the central axis of the inner cylinder 2, and the driving shaft 32 is rotatably connected with the upper cover 3 through a bearing; the upper surface of the bottom plate 4 is provided with a bearing seat 33 corresponding to the driving shaft 32, one end of the driving shaft 32 far away from the upper cover 3 is connected with the bearing seat 33, and the outer surface of the driving shaft 32 positioned between the upper cover 3 and the bearing seat 33 is provided with threads; the driving shaft 32 is positioned on the inner cylinder 2 and is sleeved with a sleeve 34, the sleeve 34 is in threaded connection with the driving shaft 32, the initial position of the sleeve 34 is positioned at the top end of the inner cylinder 1, one end of the sleeve 34, which is close to the upper cover 3, is fixedly sleeved with an annular filter plate 342, one end of the sleeve 34, which is far away from the upper cover 3, is fixedly sleeved with a reversed V-shaped cleaning brush 341, the outer wall of the annular filter plate 342 is not contacted with the inner wall of the inner cylinder 1, the reversed V-shaped cleaning brush 341 comprises a reversed V-shaped annular rod 3412 and a brush 3413, the upper surface of the reversed V-shaped annular rod 3412 is not contacted with the lower surface of the annular filter plate 342, namely, the reversed V-; the brush 3413 is arranged at one end of the T-shaped annular rod 3412 far away from the sleeve 34 and is in contact with the inner wall of the inner barrel 1 for cleaning the inner barrel 1; in order to reduce the resistance of the "+" shaped cleaning brush, a plurality of filter holes 3411 are formed in the "+" shaped annular rod 3412 to penetrate through the "+" shaped annular rod 3412, and the central axes of the filter holes 3411 and the central axis of the driving shaft 32 are parallel to each other (as shown in fig. 6). A plurality of downward inclined through holes 11 are uniformly distributed on the wall of the inner cylinder 1, and the through holes 11 with the same cross section correspond to the 'star' -shaped annular rods 3412; the mesh diameter of the annular filter plate 342 is smaller than the radius of the through-hole 11. The outer barrel 2 is of a three-layer structure from bottom to top and is respectively provided with a water-resistant layer 21, a filter layer 22 and a rigid connecting layer 23, the water-resistant layer 21 is fixedly connected with the bottom plate 4 in a sealing way, and the rigid connecting layer 23 is contacted with the upper cover 3; the height ratio of the water-resistant layer 21, the filter layer 22 and the rigid connecting layer 23 is 4-5: 5-6: 0.3-0.5, preferably 5:5: 0.3.

The fixing mechanism 5 comprises four clamping grooves 51, fixing grooves 52, springs 53, sliding rods 54, sliding chutes 55, push rods 56, pushing holes 57 and fixing plates 58, the four clamping grooves 51 are respectively arranged on the outer walls of the two sides of the rigid connecting layer 23, the outer side of the upper cover 3 is flanged downwards, the inner side walls of the two sides of the upper cover 3 and the positions corresponding to the clamping grooves 51 are respectively provided with one fixing groove 52, the bottoms of the four fixing grooves 52 are respectively and fixedly connected with one spring 53, one ends of the four springs 53 far away from the bottoms of the fixing grooves 52 are respectively and fixedly connected with one sliding rod 54, and one ends of the sliding rods 54 far away from the springs 53 respectively extend into; the sliding groove 55 is arranged on the upper end rod wall of the sliding rod 54 in the fixing groove 52 and is in a right triangle shape, one right-angle side of the sliding groove 55 and the upper surface of the sliding rod 54 are in the same plane, the end of the inclined side of the sliding groove 55 far away from the spring 53 is lower than the end of the inclined side of the sliding groove close to the spring 53 (shown in fig. 4), and the end of the sliding groove 55 far away from the spring 53 is arranged in the clamping groove 51; the upper cover 3 of fixed slot 52 upper end, the hypotenuse that corresponds four spout 55 sets up four promotion holes 57 that run through respectively near the one end of spring 53 (promote hole 57 and run through upper cover 3 promptly), sliding connection push rod 56 in four promotion holes 57 respectively, push rod 56 upper end runs through corresponding promotion hole 57 and extends to an upside fixed connection fixed plate 58 of upper cover 3, push rod 56 lower extreme runs through corresponding promotion hole 57 and offsets with the one end notch that the corresponding spout 55 hypotenuse is close to spring 55, push rod 56 can freely slide at spout 55 hypotenuse.

The working principle is as follows:

firstly, the sewage to be treated is introduced into the inner cylinder 1 through the water inlet pipe 35, the inner cylinder 1 intercepts large granular substances in the sewage through the through holes 11 in the side wall of the inner cylinder, solid-liquid separation is realized, the separated sewage flows into the outer cylinder 2, due to the blockage of the water blocking layer 21, the sewage flowing into the outer cylinder 2 is firstly precipitated, small granular substances which are not intercepted by the through holes 11 are precipitated at the bottom of the outer cylinder 2, after the sewage is continuously introduced, the liquid level continuously rises to exceed the height of the water blocking layer 21, the sewage flows out of the outside through the filter layer 22, the filter layer 22 can adsorb heavy metal ions and the like in the sewage by adopting active carbon, and the outside can collect the sewage treated by the filter layer 22.

When large particle substances block the through hole 11, as the water inlet pipe 35 continuously introduces sewage and flows in one direction, and the redundant sewage is filled into the branch pipe 352, the liquid level sensor 3521 is triggered (a device for collecting sewage can be arranged at the branch pipe 352 to prevent the sewage from rushing out of the branch pipe 352 to influence the external environment), the liquid level sensor 3521 controls the driving motor 31 to rotate so as to control the driving shaft 32 to rotate, and as the axial displacement of the driving shaft 32 is limited by the bearing seat 33, the sleeve 34 is caused to move towards the lower side in the direction shown in fig. 1 by the spiral transmission principle, and then the cleaning brush 341 and the annular filter plate 342 are driven to move downwards; the brush 3413 cleans the large granular substances blocking the through holes, and the annular filter plate 342 collects the large granular substances suspended in the liquid in the inner barrel 1 after cleaning, so that secondary blockage is avoided.

When the sewage treatment device needs to be disassembled and cleaned, the fixing plates 58 on the two sides are pressed, the push rod 56 slides on the sliding groove 55 to drive the sliding rod 54 to move towards the direction far away from the outer cylinder 2 shown in fig. 1, and the spring 53 compresses, so that the upper cover 3 is separated from the outer cylinder, and the sewage treatment device is disassembled and cleaned.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic sewage treatment plant of clearance, includes processing apparatus body (10), its characterized in that: the processing device body (10) is of a cylindrical structure and comprises an inner cylinder (1), an outer cylinder (2), an upper cover (3) and a bottom plate (4); the central shafts of the inner cylinder (1) and the outer cylinder (2) are on the same straight line, the inner cylinder (1), the outer cylinder (2) and the bottom plate (4) are fixedly connected in a sealing manner, the lower surface of the upper cover (3) is in contact with the upper ends of the inner cylinder (1) and the outer cylinder (2), and the upper cover (3) is connected with the outer cylinder (2) through a fixing mechanism (5);

the middle part of the upper surface of the upper cover (3) is fixedly connected with a driving motor (31), one side of the driving motor (31) is provided with a water inlet pipe (35), the water inlet pipe (35) penetrates through the upper cover (3) and extends into the inner barrel (1), the upper end of the upper cover (3) of the water inlet pipe (35) is connected with an upward inclined branch pipe (352), and one end, far away from the water inlet pipe (35), of the branch pipe (352) is provided with a liquid level sensor (3521); the output end of the driving motor (31) is fixedly connected with a driving shaft (32), the driving shaft (32) penetrates through the upper cover (3) and extends into the inner cylinder (1), the central axis of the driving shaft (32) is collinear with the central axis of the inner cylinder (1), a bearing seat (33) is arranged on the upper surface of the bottom plate (4) corresponding to the driving shaft (32), one end, far away from the upper cover (3), of the driving shaft (32) is connected with the bearing seat (33), and threads are arranged on the outer surface of the driving shaft (32) between the upper cover (3) and the bearing seat (33); the driving shaft (32) is positioned on the part of the inner cylinder (1) and is sleeved with a sleeve (34), the sleeve (34) is in threaded connection with the driving shaft (32) and the initial position of the sleeve (34) is positioned at the top end of the inner cylinder (1), one end of the sleeve (34) close to the upper cover (3) is fixedly sleeved with an annular filter plate (342), one end of the sleeve (34) far away from the upper cover (3) is fixedly sleeved with a reversed V-shaped cleaning brush (341), the reversed V-shaped cleaning brush (341) comprises a reversed V-shaped annular rod (3412) and a hairbrush (3413), and the hairbrush (3413) is arranged at one end of the reversed V-shaped annular rod (3412) far away from the sleeve (34) and is in contact with the inner wall of the inner cylinder (1); a plurality of downward inclined through holes (11) are uniformly distributed on the wall of the inner cylinder (1), and the through holes (11) with the same cross section correspond to the X-shaped annular rods (3412); the outer barrel (2) is of a three-layer structure from bottom to top and is provided with a water-resistant layer (21), a filter layer (22) and a rigid connecting layer (23), the water-resistant layer (21) is fixedly connected with the bottom plate (4) in a sealing mode, and the rigid connecting layer (23) is in contact with the upper cover (3).

2. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the fixing mechanism (5) comprises four clamping grooves (51), fixing grooves (52), springs (53), sliding rods (54), sliding grooves (55), push rods (56), pushing holes (57) and a fixing plate (58), the four clamping grooves (51) are respectively formed in the outer walls of the two sides of the rigid connecting layer (23), the outer side of the upper cover (3) is turned downwards, the inner side walls of the two sides of the upper cover (3) are respectively provided with one fixing groove (52) corresponding to the positions of the clamping grooves (51), the bottoms of the four fixing grooves (52) are respectively and fixedly connected with one spring (53), one ends of the four springs (53) far away from the bottoms of the fixing grooves (52) are respectively and fixedly connected with one sliding rod (54), and one end of the sliding rod (54) far away from the spring (53) respectively extends into the corresponding clamping groove (51); the sliding groove (55) is arranged on the rod wall of the upper end of the sliding rod (54) positioned in the fixing groove (52) and is in a right-angled triangle shape, one right-angled edge of the sliding groove (55) and the upper surface of the sliding rod (54) are in the same plane, the end, away from the spring (53), of the inclined edge of the sliding groove is lower than the end, close to the spring (53), of the inclined edge of the sliding groove, and the end, away from the spring (53), of the sliding groove (55) is positioned in the clamping groove (51); the upper cover (3) of fixed slot (52) upper end, correspond four the one end that the hypotenuse of spout (55) is close to spring (53) sets up four promotion holes (57) that run through respectively, four in promoting hole (57) respectively sliding connection push rod (56), push rod (56) upper end is run through corresponding promotion hole (57) and is extended to the upside fixed connection fixed plate (58) of upper cover (3), push rod (56) lower extreme is run through corresponding promotion hole (57) and is corresponding spout (55) hypotenuse is close to the one end notch of spring (53) offsets.

3. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the output end of the driving motor (31) is fixedly connected with the driving shaft (32) through a coupler.

4. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the driving shaft (32) is rotatably connected with the upper cover (3) through a bearing.

5. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the diameter of the meshes of the annular filter plate (342) is smaller than the radius of the through hole (11).

6. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the star-shaped annular rod (3412) is provided with a plurality of filter holes (3411) penetrating through the star-shaped annular rod, and the central axes of the filter holes (3411) are parallel to the central axis of the driving shaft (32).

7. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the height ratio of the water-resistant layer (21), the filter layer (22) and the rigid connecting layer (23) is 4-5: 5-6: 0.3-0.5.

8. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: and sealing rings are arranged at the joints of the lower end of the upper cover (3) and the upper ends of the inner barrel (1) and the outer barrel (2).

9. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the liquid level sensor (3521) is electrically connected with the driving motor (31).

10. An automatic cleaning sewage treatment plant according to claim 1, characterized in that: the water inlet pipe (35) is provided with a one-way circulation valve (351).