CN120136249B - Sewage treatment device - Google Patents

Abstract

The present invention discloses a sewage treatment device, which relates to the technical field of sewage treatment and includes a filter tank, a sewage inlet pipe, a mounting bracket, a membrane separation assembly, a water outlet pipe, a liquid pump, an aeration mechanism, and a cleaning mechanism. The cleaning mechanism includes a limit rod, a sliding sleeve, a cleaning roller, a telescopic member, a longitudinal reciprocating assembly, a reciprocating deflection assembly, and a rotating assembly. The present invention uses the membrane separation assembly to intercept solid impurities in the sewage, achieving efficient filtration and separation. The aeration mechanism evenly distributes air in the sewage, increasing the dissolved oxygen content and promoting the decomposition of organic matter in the sewage. The various components of the cleaning mechanism work synergistically to automatically clean the surface of the membrane separation assembly, preventing clogging, extending service life, and reducing maintenance costs.

Description

A sewage treatment device

Technical Field

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

Background Art

With the acceleration of industrialization and urbanization, wastewater discharge continues to increase, placing higher demands on wastewater treatment technology. Traditional wastewater treatment devices often suffer from problems such as poor filtration, easy clogging of membrane separation components, and difficulty in cleaning and maintenance, which affect wastewater treatment efficiency and quality. Therefore, developing a wastewater treatment device that can effectively address these issues is of great practical significance.

Summary of the Invention

The purpose of the embodiments of the present invention is to provide a sewage treatment device to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A sewage treatment device, comprising a filter tank connected to a sewage inlet pipe, and further comprising:

Install the bracket and place it inside the filter tank;

The membrane separation component is rotatably connected to the mounting bracket and is used to filter and separate solid impurities in the sewage;

A water outlet pipe is rotatably connected to the top of the membrane separation assembly and communicates with the interior thereof, and the water outlet pipe is connected to the mounting bracket;

a liquid suction pump, connected to the interior of the water outlet pipe;

An aeration mechanism is connected to the bottom of the membrane separation component and is used to aerate the sewage;

A cleaning mechanism is used to clean solid impurities adhering to the membrane separation component, and the cleaning mechanism includes:

A limiting rod connected to the membrane separation assembly;

A sliding sleeve, slidably connected to the limiting rod;

A cleaning roller, rotatably connected to the sliding sleeve;

a telescopic member, one end of which is connected to the mounting bracket;

A longitudinal reciprocating assembly is connected to the other end of the telescopic member and to the sliding sleeve, and is used to drive the sliding sleeve to move longitudinally back and forth;

A reciprocating deflection assembly, one end of which is connected to the telescopic member and the other end of which is connected to the membrane separation assembly, for driving the membrane separation assembly to rotate reciprocally;

The rotating component has one end connected to the membrane separation component and the other end connected to the cleaning roller, and is used to drive the cleaning roller to rotate.

As a further solution of the present invention: the aeration mechanism includes:

A connecting air pipe is communicated with the bottom of the membrane separation assembly and is rotatably connected thereto, the connecting air pipe is connected to the mounting bracket, a solenoid valve is provided in the connecting air pipe, and the connecting air pipe is connected to the aerator;

A universal seat, which is in communication with the interior of the connecting air pipe, wherein the universal seat is provided in a plurality of groups;

A universal ball, movably connected to the universal seat and communicated with the interior thereof;

The aeration pipe is communicated with the interior of the universal ball and is provided with a plurality of aeration holes.

As a further solution of the present invention: the longitudinal reciprocating assembly includes:

A sliding folding rod, one end of which is connected to the telescopic member;

A connecting frame is connected to the mounting bracket and is slidably connected to the sliding folding rod;

A piston is located inside the connecting frame and is slidably connected thereto, and the piston is connected to the other end of the sliding folding rod;

A connecting component, one end of which is connected to the connecting frame and communicates with the interior thereof;

a telescopic cylinder, connected to the other end of the communication assembly and connected to one set of the sliding sleeves;

A rotating sleeve, rotatably connected to the cleaning roller;

The two ends of the hinged rod are rotatably connected to two adjacent sets of rotating sleeves.

As a further solution of the present invention: the communication component includes:

An air outlet hose, one end of which is connected to the interior of the connecting frame and the other end of which is connected to the interior of the telescopic cylinder, wherein a one-way valve 1 is provided in the air outlet hose;

An air inlet pipe is connected to the interior of the connecting frame, and a second one-way valve is provided in the air inlet pipe;

An air intake hose, one end of which is connected to the interior of the connecting frame and the other end of which is connected to the interior of the telescopic cylinder, wherein a one-way valve 3 is provided in the air intake hose;

An air outlet pipe is connected to the interior of the connection frame, and a one-way valve 4 is provided in the air outlet pipe;

Balancing through holes are provided on the connecting frame, and there are two groups of balancing through holes, which are located on both sides of the piston;

A control detector is connected to the mounting bracket and is electrically connected to one-way valve 1, one-way valve 2, one-way valve 3, and one-way valve 4;

The communicating ports of the air outlet hose, the air inlet pipe and the connecting frame are located on one side of the piston, and the communicating ports of the air inlet hose, the air outlet pipe and the connecting frame are located on the other side of the piston.

As a further solution of the present invention: the reciprocating deflection assembly includes:

Tooth plate 1, connected to the telescopic member;

The gear 1 is connected to the membrane separation component and meshes with the gear plate 1.

As a further solution of the present invention: the rotating assembly includes:

Gear 2, connected to the cleaning roller;

The second gear plate is connected to the membrane separation component and meshes with the second gear.

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

1. High-efficiency filtration: The membrane separation component can effectively intercept solid impurities in sewage and achieve efficient filtration and separation;

2. Aeration and oxygenation: The design of the universal seat and universal ball enables flexible arrangement of the aeration pipes, so that the air is evenly distributed in the sewage, increasing the dissolved oxygen content, promoting the decomposition of organic matter in the sewage, and preventing the membrane pores from being blocked, thereby improving the sewage treatment effect;

3. Automatic cleaning: The cleaning mechanism realizes automatic cleaning of the surface of the membrane separation component through the coordinated action of multiple components, thereby preventing blockage, extending service life and reducing maintenance costs; and the aeration mechanism can cooperate with the cleaning mechanism to clean the surface of the membrane separation component, thereby improving the cleaning effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a sewage treatment device according to an embodiment of the present invention.

FIG2 is a schematic diagram of the internal structure of a sewage treatment device according to an embodiment of the present invention.

FIG3 is a schematic diagram of the structural disassembly of FIG2 .

FIG4 is a schematic diagram showing the structural disassembly of the mounting bracket and the membrane separation assembly in an embodiment of the present invention.

FIG5 is a schematic structural diagram of an aeration mechanism in an embodiment of the present invention.

FIG6 is a schematic diagram of a portion of the structure of the cleaning mechanism in an embodiment of the present invention.

FIG7 is a schematic structural diagram of a longitudinal reciprocating assembly in an embodiment of the present invention.

FIG8 is a schematic diagram of the cross-sectional structure of the telescopic cylinder in an embodiment of the present invention.

FIG9 is an enlarged schematic diagram of the structure at point A in FIG6 .

FIG10 is an enlarged schematic diagram of the structure at point B in FIG6 .

Figure: 1, filter tank; 2, sewage inlet pipe; 3, mounting bracket; 4, membrane separation component; 5, outlet pipe; 6, liquid pump; 7, aeration mechanism; 71, connecting air pipe; 72, universal seat; 73, universal ball; 74, aeration pipe; 8, cleaning mechanism; 81, limit rod; 82, sliding sleeve; 83, cleaning roller; 84, telescopic member; 85, longitudinal reciprocating component; 86, reciprocating deflection component; 87, rotating component; 851, sliding Folding rod; 852, connecting frame; 853, piston; 854, connecting assembly; 855, telescopic cylinder; 856, rotating sleeve; 857, hinged rod; 8541, air outlet hose; 8542, air inlet pipe; 8543, air inlet hose; 8544, air outlet pipe; 8545, balancing through hole; 8546, control detector; 861, gear plate 1; 862, gear 1; 871, gear 2; 872, gear plate 2; 9, connecting rope.

DETAILED DESCRIPTION

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

In an embodiment of the present invention, referring to FIG. 1 to FIG. 10 , a sewage treatment device includes a filter tank 1 connected to a sewage inlet pipe 2, and further includes:

The mounting bracket 3 is placed inside the filter tank 1;

The membrane separation assembly 4 is rotatably connected to the mounting bracket 3 and is used to filter and separate solid impurities in the sewage;

The water outlet pipe 5 is rotatably connected to the top of the membrane separation assembly 4 and communicates with the interior thereof. The water outlet pipe 5 is connected to the mounting bracket 3;

A liquid pump 6 is connected to the interior of the water outlet pipe 5;

An aeration mechanism 7 is connected to the bottom of the membrane separation assembly 4 and is used to aerate the sewage;

The cleaning mechanism 8 is used to clean the solid impurities adhering to the membrane separation component 4. The cleaning mechanism 8 includes:

The limiting rod 81 is connected to the membrane separation assembly 4;

The sliding sleeve 82 is slidably connected to the limiting rod 81;

The cleaning roller 83 is rotatably connected to the sliding sleeve 82;

The telescopic member 84 has one end connected to the mounting bracket 3;

The longitudinal reciprocating assembly 85 is connected to the other end of the telescopic member 84 and is connected to the sliding sleeve 82, and is used to drive the sliding sleeve 82 to move longitudinally;

The reciprocating deflection assembly 86 has one end connected to the telescopic member 84 and the other end connected to the membrane separation assembly 4, and is used to drive the membrane separation assembly 4 to rotate reciprocally;

The rotating assembly 87 has one end connected to the membrane separation assembly 4 and the other end connected to the cleaning roller 83 for driving the cleaning roller 83 to rotate.

Sewage enters the filter tank 1 through the sewage inlet pipe 2, and first passes through the membrane separation component 4 for filtration and separation. The membrane separation component 4 intercepts the solid impurities in the sewage through its microporous structure. The filtered water enters the interior of the membrane separation component 4, and the liquid pump 6 extracts the filtered water through the outlet pipe 5 to separate the water and solid impurities for subsequent treatment. The aeration mechanism 7 performs aeration to evenly distribute the air in the sewage, increase the dissolved oxygen content, and promote the decomposition of organic matter in the sewage. At the same time, the air flow blows the impurities adhered to the surface of the membrane separation component 4 to prevent the membrane pores from being blocked, thereby improving the sewage treatment effect. As the filtration proceeds, too many impurities adhere to the surface of the membrane separation component 4, and the filtration effect decreases. At this time, the cleaning step is entered, and the liquid pump 6 reversely sends the clean water into the membrane separation component 4. The clean water It flows out from the membrane separation component 4, backwashes the solid impurities adhering to its surface, so that the impurities are separated from the membrane separation component 4. At the same time, the aeration mechanism 7 blows out airflow, and the airflow is opposite to the direction of the flushing water, and they are counteracted, so that the impact force of the water flow is increased, and turbulence is generated at the same time, thereby improving the flushing effect. The telescopic member 84 reciprocates, driving the reciprocating deflection component 86 to move, and the reciprocating deflection component 86 drives the membrane separation component 4 to rotate back and forth, so that the sewage produces turbulence, thereby improving the impurity separation effect. At the same time, the telescopic member 84 drives the longitudinal reciprocating component 85 to move, and the longitudinal reciprocating component 85 drives the sliding sleeve 82 to reciprocate longitudinally, and the sliding sleeve 82 drives the cleaning roller 83 to reciprocate longitudinally, and the rotating component 87 drives the cleaning roller 83 to rotate, thereby cleaning the surface of the membrane separation component 4 and improving the cleaning effect.

As an embodiment of the present invention, referring to FIG. 2 , FIG. 3 and FIG. 5 , the aeration mechanism 7 includes:

The connecting air pipe 71 is connected to the bottom of the membrane separation assembly 4 and is rotatably connected thereto. The connecting air pipe 71 is connected to the mounting bracket 3. A solenoid valve is provided in the connecting air pipe 71. The connecting air pipe 71 is connected to the aerator.

A universal seat 72 is connected to the interior of the connecting air pipe 71, and the universal seat 72 is provided in a plurality of groups;

The universal ball 73 is movably connected to the universal seat 72 and communicates with the interior thereof;

The aeration pipe 74 is in communication with the interior of the universal ball 73 , and is provided with a plurality of aeration holes.

Connecting air pipe 71 connects to an aerator (not shown). Compressed air generated by the aerator enters universal seat 72 through connecting air pipe 71 and is evenly released into the wastewater through universal ball 73 and aeration holes in aeration pipe 74. During aeration, the air and wastewater are thoroughly mixed, increasing the dissolved oxygen content in the water and promoting the decomposition of organic matter in the wastewater. This also helps prevent clogging of the micropores in membrane separation assembly 4. The design of universal seat 72 and universal ball 73 allows for flexible placement of aeration pipe 74.

As an embodiment of the present invention, referring to Figures 1 to 3 and 6 to 9, the longitudinal reciprocating assembly 85 includes:

A sliding folding rod 851, one end of which is connected to the telescopic member 84;

The connecting frame 852 is connected to the mounting bracket 3 and is slidably connected to the sliding folding rod 851;

The piston 853 is located inside the connecting frame 852 and is slidably connected thereto. The piston 853 is connected to the other end of the sliding folding rod 851;

A connecting component 854, one end of which is connected to the connecting frame 852 and communicates with the interior thereof;

The telescopic cylinder 855 is connected to the other end of the communication component 854 and is connected to one set of the sliding sleeves 82;

A rotating sleeve 856 is rotatably connected to the cleaning roller 83;

The hinge rod 857 has two ends rotatably connected to two adjacent sets of rotating sleeves 856;

The connectivity component 854 includes:

An outlet hose 8541, one end of which is connected to the interior of the connecting frame 852, and the other end of which is connected to the interior of the telescopic cylinder 855. A one-way valve 1 is provided in the outlet hose 8541;

The air inlet pipe 8542 is connected to the interior of the connecting frame 852 and is provided with a second one-way valve;

An air intake hose 8543, one end of which is in communication with the interior of the connection frame 852 and the other end of which is in communication with the interior of the telescopic cylinder 855. A one-way valve 3 is provided in the air intake hose 8543;

The air outlet pipe 8544 is connected to the interior of the connection frame 852, and a one-way valve 4 is provided in the air outlet pipe 8544;

Balancing through holes 8545 are provided on the connecting frame 852 . There are two sets of balancing through holes 8545 , and they are located on both sides of the piston 853 .

Control detector 8546 is connected to mounting bracket 3 and is electrically connected to one-way valve 1, one-way valve 2, one-way valve 3, and one-way valve 4;

The connecting ports of the air outlet hose 8541 , the air inlet pipe 8542 and the connecting frame 852 are located on one side of the piston 853 , and the connecting ports of the air inlet hose 8543 , the air outlet pipe 8544 and the connecting frame 852 are located on the other side of the piston 853 .

When the cleaning roller 83 is located at the top of the membrane separation assembly 4, the one-way valve 3 and the one-way valve 4 of the control detector 8546 are in the closed state, and the one-way valve 1 and the one-way valve 2 are in the open state;

The telescopic member 84 drives the sliding folding rod 851 to reciprocate laterally, and the sliding folding rod 851 drives the piston 853 to reciprocate laterally, drawing outside air into the connecting frame 852 through the air inlet pipe 8542, and then sending it into the telescopic cylinder 855 through the air outlet hose 8541, causing the telescopic cylinder 855 to extend, driving the sliding sleeve 82 to move downward along the sliding folding rod 851, causing the cleaning roller 83 to move downward, thereby cleaning the membrane separation assembly 4;

When the cleaning roller 83 moves to the bottom of the membrane separation assembly 4, the one-way valve 3 and the one-way valve 4 of the control detector 8546 are in the open state, and the one-way valve 1 and the one-way valve 2 are in the closed state;

The telescopic member 84 drives the sliding folding rod 851 to move back and forth laterally, and the sliding folding rod 851 drives the piston 853 to move back and forth laterally, drawing the air in the telescopic cylinder 855 into the interior of the connecting frame 852 through the air inlet hose 8543, and then flowing into the outside through the air outlet pipe 8544, causing the telescopic cylinder 855 to retract, driving the sliding sleeve 82 to move upward along the sliding folding rod 851, causing the cleaning roller 83 to move upward to clean the membrane separation component 4.

In this embodiment, the balancing through hole 8545 ensures that air can enter or flow out of the connecting frame 852, and the balancing through hole 8545 has a small aperture, so that when the one-way valve 1 and the one-way valve 2 are in the open state, part of the gas in the connecting frame 852 flows out from the balancing through hole 8545, and part of the gas enters the interior of the telescopic cylinder 855 through the air outlet hose 8541.

As an embodiment of the present invention, referring to FIG. 1 to FIG. 3 and FIG. 6 , the reciprocating deflection assembly 86 includes:

Tooth plate 1 861, connected to telescopic member 84;

Gear 1 862 is connected to the membrane separation assembly 4 and meshes with gear plate 1 861 .

The telescopic member 84 drives the tooth plate 1 861 to move back and forth laterally, the tooth plate 1 861 drives the gear 1 862 to rotate back and forth, and the gear 1 862 drives the membrane separation component 4 to rotate back and forth, so that the membrane separation component 4 and the water flow generate impact force, thereby improving the impurity separation effect.

As an embodiment of the present invention, referring to Figures 1 to 3, 6 and 10, the rotating assembly 87 includes:

Gear 2 871 is connected to the cleaning roller 83;

The second gear plate 872 is connected to the membrane separation assembly 4 and meshes with the second gear 871 .

During the longitudinal movement of the cleaning roller 83 , the gear 2 871 is driven to move longitudinally synchronously. Since the gear 2 871 is engaged with the tooth plate 2 872 , the gear 2 871 rotates, and the gear 2 871 drives the cleaning roller 83 to rotate, thereby cleaning the membrane separation component 4 .

As an embodiment of the present invention, please refer to Figures 2, 3 and 5, which also includes:

One end of the connecting rope 9 is connected to the aeration pipe 74 , and the other end is connected to the membrane separation assembly 4 .

When the membrane separation component 4 rotates, the aeration pipe 74 rotates synchronously under the drive of the connecting rope 9, thereby increasing the aeration range. At the same time, the connecting rope 9 has a certain length, which makes the aeration pipe 74 have a certain inclination, so that the airflow direction is tilted upward, ensuring that impurities are away from the membrane separation component 4.

The working principle of the present invention is as follows: sewage enters the filter tank 1 through the sewage inlet pipe 2, and is first filtered and separated by the membrane separation component 4. The membrane separation component 4 intercepts solid impurities in the sewage through its microporous structure. The filtered water enters the interior of the membrane separation component 4, and the liquid pump 6 extracts the filtered water through the outlet pipe 5 to separate the water and solid impurities for subsequent treatment. The compressed air generated by the aerator enters the universal seat 72 through the connecting air pipe 71 and is evenly released into the sewage through the aeration holes on the universal ball 73 and the aeration pipe 74. During the aeration process, the air and sewage are fully mixed, increasing the dissolved oxygen in the water and promoting the decomposition of organic matter in the sewage.

As the filtration proceeds, too many impurities adhere to the surface of the membrane separation component 4, and the filtration effect decreases. At this time, the cleaning step is entered, and the liquid pump 6 reversely feeds clean water into the membrane separation component 4. The clean water flows out of the membrane separation component 4 to backwash the solid impurities adhered to its surface, so that the impurities are separated from the membrane separation component 4. At the same time, the aeration mechanism 7 blows out an airflow, and the airflow is opposite to the flushing water direction, and the impact force of the water flow is increased. At the same time, turbulence is generated to improve the flushing effect. The telescopic member 84 reciprocates, driving the tooth plate 861 to reciprocate horizontally. The tooth plate 861 drives the gear 862 to rotate back and forth. The gear 862 drives the membrane separation component 4 to rotate back and forth, so that the membrane separation component 4 and the water flow generate an impact force, thereby improving the impurity separation effect.

When the cleaning roller 83 is located at the top of the membrane separation assembly 4, the one-way valve 3 and the one-way valve 4 of the control detector 8546 are in the closed state, and the one-way valve 1 and the one-way valve 2 are in the open state;

The telescopic member 84 drives the sliding folding rod 851 to reciprocate laterally, and the sliding folding rod 851 drives the piston 853 to reciprocate laterally, drawing outside air into the connecting frame 852 through the air inlet pipe 8542, and then sending it into the telescopic cylinder 855 through the air outlet hose 8541, causing the telescopic cylinder 855 to extend, driving the sliding sleeve 82 to move downward along the sliding folding rod 851, causing the cleaning roller 83 to move downward, thereby cleaning the membrane separation assembly 4;

When the cleaning roller 83 moves to the bottom of the membrane separation assembly 4, the one-way valve 3 and the one-way valve 4 of the control detector 8546 are in the open state, and the one-way valve 1 and the one-way valve 2 are in the closed state;

The telescopic member 84 drives the sliding folding rod 851 to move back and forth laterally, and the sliding folding rod 851 drives the piston 853 to move back and forth laterally, drawing the air in the telescopic cylinder 855 into the interior of the connecting frame 852 through the air inlet hose 8543, and then flowing into the outside through the air outlet pipe 8544, causing the telescopic cylinder 855 to retract, driving the sliding sleeve 82 to move upward along the sliding folding rod 851, causing the cleaning roller 83 to move upward to clean the membrane separation component 4.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims (3)

1. A sewage treatment device, comprising a filter tank connected to a sewage inlet pipe, characterized in that it also includes: Install the bracket and place it inside the filter tank; The membrane separation component is rotatably connected to the mounting bracket and is used to filter and separate solid impurities in the sewage; A water outlet pipe is rotatably connected to the top of the membrane separation assembly and communicates with the interior thereof, and the water outlet pipe is connected to the mounting bracket; a liquid suction pump, connected to the interior of the water outlet pipe; An aeration mechanism is connected to the bottom of the membrane separation component and is used to aerate the sewage; A cleaning mechanism is used to clean solid impurities adhering to the membrane separation component, and the cleaning mechanism includes: A limiting rod connected to the membrane separation assembly; A sliding sleeve, slidably connected to the limiting rod; A cleaning roller, rotatably connected to the sliding sleeve; a telescopic member, one end of which is connected to the mounting bracket; A longitudinal reciprocating assembly is connected to the other end of the telescopic member and to the sliding sleeve, and is used to drive the sliding sleeve to move longitudinally back and forth; A reciprocating deflection assembly, one end of which is connected to the telescopic member and the other end of which is connected to the membrane separation assembly, for driving the membrane separation assembly to rotate reciprocally; A rotating assembly, one end of which is connected to the membrane separation assembly and the other end of which is connected to the cleaning roller, for driving the cleaning roller to rotate; The longitudinal reciprocating assembly comprises: A sliding folding rod, one end of which is connected to the telescopic member; A connecting frame is connected to the mounting bracket and is slidably connected to the sliding folding rod; A piston is located inside the connecting frame and is slidably connected thereto, and the piston is connected to the other end of the sliding folding rod; A connecting component, one end of which is connected to the connecting frame and communicates with the interior thereof; a telescopic cylinder, connected to the other end of the communication assembly and connected to one set of the sliding sleeves; A rotating sleeve, rotatably connected to the cleaning roller; The hinged rod has two ends rotatably connected to two adjacent sets of rotating sleeves; The connectivity component includes: An air outlet hose, one end of which is connected to the interior of the connecting frame and the other end of which is connected to the interior of the telescopic cylinder, wherein a one-way valve 1 is provided in the air outlet hose; An air inlet pipe is connected to the interior of the connecting frame, and a second one-way valve is provided in the air inlet pipe; An air intake hose, one end of which is connected to the interior of the connecting frame and the other end of which is connected to the interior of the telescopic cylinder, wherein a one-way valve 3 is provided in the air intake hose; An air outlet pipe is connected to the interior of the connection frame, and a one-way valve 4 is provided in the air outlet pipe; Balancing through holes are provided on the connecting frame, and there are two groups of balancing through holes, which are located on both sides of the piston; A control detector is connected to the mounting bracket and is electrically connected to one-way valve 1, one-way valve 2, one-way valve 3, and one-way valve 4; The connecting ports of the air outlet hose, the air inlet pipe and the connecting frame are located on one side of the piston, and the connecting ports of the air inlet hose, the air outlet pipe and the connecting frame are located on the other side of the piston; The reciprocating deflection assembly comprises: Tooth plate 1, connected to the telescopic member; Gear 1 is connected to the membrane separation assembly and meshes with gear plate 1; The rotating assembly comprises: Gear 2, connected to the cleaning roller; The second gear plate is connected to the membrane separation component and meshes with the second gear. 2. A sewage treatment device according to claim 1, characterized in that the aeration mechanism comprises: A connecting air pipe is communicated with the bottom of the membrane separation assembly and is rotatably connected thereto, the connecting air pipe is connected to the mounting bracket, a solenoid valve is provided in the connecting air pipe, and the connecting air pipe is connected to the aerator; A universal seat, connected to the interior of the connecting air pipe, wherein the universal seat is provided in a plurality of groups; A universal ball, movably connected to the universal seat and communicated with the interior thereof; The aeration pipe is communicated with the interior of the universal ball and is provided with a plurality of aeration holes. 3. The sewage treatment device according to claim 2, further comprising: A connecting rope, one end of which is connected to the aeration pipe, and the other end is connected to the membrane separation component.