Buried micro-power domestic sewage treatment equipment

Abstract

This invention provides a buried micro-powered domestic sewage treatment device, relating to the field of sewage treatment. The buried micro-powered domestic sewage treatment device includes a base, an anoxic chamber fixedly connected to one side of the upper part of the base, and an aeration chamber fixedly connected to the other side of the upper part of the base. A conveying mechanism is arranged inside the lower part of the anoxic chamber, and a sludge discharge mechanism is arranged inside the aeration chamber. A motor is fixedly connected to the right side of the base. The sludge discharge mechanism includes a rotating rod and a feeding bin. The lower end of the rotating rod is fixedly connected to the output end of the motor, a spiral blade is fixedly connected to the middle of the outer periphery of the rotating rod, and a scraper is fixedly connected to the upper outer periphery of the rotating rod. Through the cooperation of the sludge discharge mechanism and the conveying mechanism, the micro-powered domestic sewage treatment device can conveniently and efficiently separate sludge from sewage, while eliminating the need for an additional conveying pump for sewage transfer, thus reducing the production cost of the equipment.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a buried micro-powered domestic wastewater treatment device. Background Technology

[0002] Micro-powered wastewater treatment refers to the treatment of wastewater through the anaerobic and aerobic respiration of microorganisms. Through anaerobic treatment, the wastewater undergoes a certain degree of anaerobic fermentation, which improves the biodegradability of the wastewater. After anaerobic treatment, the internal substances of the wastewater will be hydrolyzed and acidified. Subsequently, the hydrolyzed and acidified wastewater is aerated and comes into contact with oxygen. Most of the organic matter in the original wastewater is degraded and purified here. Aerobic bacteria use the organic matter in the wastewater as food, decomposing the organic matter into inorganic salts, thereby achieving the purpose of purification.

[0003] Currently, most micro-powered sewage treatment equipment requires multiple sedimentation processes to remove sludge from sewage. The sedimentation time is long, and the deposited sludge can easily clog the sludge discharge pipes inside the equipment, making it difficult to separate sludge and sewage conveniently and efficiently. At the same time, most equipment usually requires multiple pumps to transport sewage in order to allow the sewage to flow into the next treatment stage, which increases the manufacturing cost of the equipment. Therefore, this invention proposes a buried micro-powered domestic sewage treatment equipment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a buried micro-powered domestic sewage treatment device, which solves the problems of inconvenient and inefficient separation of sewage and silt, as well as high manufacturing costs.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a buried micro-power domestic sewage treatment equipment, including a base, an anoxic chamber fixedly connected to one side of the upper part of the base, an aeration chamber fixedly connected to the other side of the upper part of the base, a conveying mechanism provided inside the lower side of the anoxic chamber, a sludge discharge mechanism provided inside the aeration chamber, and a motor fixedly connected to the right side of the inside of the base.

[0006] The slag discharge mechanism includes a rotating rod and a feeding bin. The lower end of the rotating rod is fixedly connected to the output end of the motor. A spiral blade is fixedly connected to the middle of the outer periphery of the rotating rod. A scraper is fixedly connected to the upper part of the outer periphery of the rotating rod. The feeding bin is fixedly connected to the middle of the bottom wall of the aeration chamber. A filter cylinder is fixedly connected to the upper part of the feeding bin. A convex plate is fixedly connected to the upper part of the filter cylinder. An isolation shell is fixedly connected to the upper part of the convex plate. An auger conveyor is fixedly connected to the front side of the isolation shell.

[0007] Preferably, the upper part of the aeration chamber is fixedly connected to a notched platform, and four aeration pipes are fixedly connected to the inner edge of the notched platform. The lower part of the aeration pipes is located inside the aeration chamber, and the upper part of the isolation shell is fixedly connected to the lower part of the notched platform.

[0008] Preferably, an inlet is fixedly connected to the left side of the anoxic chamber, an end cap is fixedly connected to the upper part of the anoxic chamber, a grid well is fixedly connected to the upper inner wall of the anoxic chamber, a barrier grid is fixedly connected to the lower side inside the grid well, the grid well and the inlet are internally connected, an outlet is fixedly connected to the lower right side of the aeration chamber, a solenoid valve is installed inside the outlet, and a solenoid valve is installed inside the inlet.

[0009] Preferably, the outer peripheral edge of the spiral blade is in contact with the inner wall of the filter cartridge, the lower outer peripheral side of the spiral blade is disposed inside the feed hopper, the upper outer peripheral side of the spiral blade is disposed on the upper side of the middle part of the convex plate, and the lower part of the scraper is in contact with the upper part of the convex plate.

[0010] Preferably, the upper end of the rotating rod is rotatably connected to the lower side of the middle part of the notch platform, the lower side of the outer periphery of the rotating rod penetrates the bottom of the aeration chamber and is rotatably connected to the upper inner wall of the base, and the outer periphery of the middle part of the auger conveyor is fixedly connected to the inner wall of the front side of the aeration chamber.

[0011] Preferably, the conveying mechanism includes a mud hopper, which is fixedly connected to the lower side of the interior of the anoxic chamber. A feed pipe is fixedly connected to the lower part of the mud hopper. A one-way valve is provided in the middle of the feed pipe. A cylinder is fixedly connected to the lower end of the feed pipe. A conveying pipe is fixedly connected to the right end of the cylinder. A one-way valve is provided on the left side of the conveying pipe. A piston is slidably connected to the left side of the interior of the cylinder. A support shaft is rotatably connected to the left side of the interior of the base. A turntable is fixedly connected to the upper end of the support shaft through the upper inner wall of the base. A connecting shaft is fixedly connected to the upper edge of the turntable. A connecting rod is provided between the connecting shaft and the piston.

[0012] Preferably, a driven pulley is fixedly connected to the upper outer periphery of the support shaft, and a driving pulley is fixedly connected to the lower end of the rotating rod. The driving pulley and the driven pulley are connected by a belt.

[0013] Preferably, one end of the connecting rod is hinged to the middle of the left side of the piston, and the other end of the connecting rod is rotatably connected to the outer periphery of the connecting shaft.

[0014] Preferably, the right end of the conveying pipe passes through the inner wall of the left side of the aeration chamber and is fixedly connected to the left side of the feeding chamber. The feeding chamber and the feeding pipe are connected in sequence through the conveying pipe and the cylinder.

[0015] Preferably, the right side of the piston is located on the lower left side of the feed pipe, and the outer periphery of the cylinder is fixedly connected between the two sides of the lower part of the anoxic chamber.

[0016] Working Principle: Wastewater enters the anoxic chamber through the inlet. Inside, it undergoes anaerobic treatment, causing hydrolysis and acidification of substances. A motor then rotates a rotating rod, which in turn drives a support shaft via two pulleys. This, in turn, causes a rotating disc to rotate a connecting shaft. The connecting shaft and rod work together to pull a piston reciprocating inside the cylinder. When the piston moves to the left, the hydrolyzed and acidified wastewater from the anoxic chamber is drawn into the cylinder through the feed pipe and one-way valve. When the piston moves to the right, the wastewater inside the cylinder is pushed through one-way valve and into the delivery pipe, subsequently entering the feed hopper. As the piston reciprocates, wastewater continuously enters the feed hopper and seeps upwards from the filter cartridge into the aeration chamber. The sludge in the wastewater is blocked by the filter cartridge and continuously transported upwards by the rotating spiral blades, causing the sludge and wastewater to separate rapidly. The sludge is then transported to the upper part of the convex plate and slides down the slope in the middle of the convex plate. At the same time, the rotating scraper continuously scrapes the sludge, causing it to adhere tightly to the inner wall of the isolation shell through centrifugal force and enter the auger conveyor to be transported out of the equipment. Meanwhile, the wastewater inside the aeration chamber undergoes rapid aerobic reaction through the aeration pipes, degrading and purifying the organic matter in the wastewater by combining with hydrolyzed acidified substances.

[0017] This invention provides a buried, micro-powered domestic sewage treatment device. It has the following beneficial effects:

[0018] 1. Through the cooperation of the sludge discharge mechanism and the motor, the present invention enables the anaerobic wastewater to quickly separate the wastewater from the silt inside the aeration chamber when it enters the chamber, and discharge the silt out of the equipment, so that the micro-power domestic wastewater treatment equipment can conveniently and efficiently separate the silt from the wastewater.

[0019] 2. This invention, through the cooperation of a conveying mechanism and a motor, rapidly transports sewage and sludge from the anaerobic chamber to the aeration chamber via the reciprocating movement of a piston. This allows the anaerobic sewage to be conveniently transported to the aeration chamber for degradation and purification, eliminating the need for an additional conveying pump for sewage transfer in the micro-powered domestic sewage treatment equipment, thus reducing the equipment's production costs. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a schematic diagram of the turntable structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the aeration chamber of the present invention;

[0023] Figure 4 This is a schematic diagram of the spiral blade structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the scraper structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the hypoxia chamber structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of the cylinder block of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of the base of the present invention.

[0028] The components are as follows: 1. Base; 2. Anoxic chamber; 3. Aeration chamber; 4. Notched platform; 5. Aeration pipe; 6. Slag discharge mechanism; 601. Rotating rod; 602. Spiral blade; 603. Feed hopper; 604. Filter cartridge; 605. Isolation shell; 606. Convex plate; 607. Scraper; 608. Screw conveyor; 7. Conveying mechanism; 701. Sludge hopper; 702. Feed pipe; 703. One-way valve; 704. Conveying pipe; 705. One-way valve; 706. Cylinder; 707. Piston; 708. Connecting rod; 709. Connecting shaft; 710. Turntable; 8. End cover; 9. Grille well; 10. Barrier grille; 11. Inlet; 12. Outlet; 13. Motor; 14. Driving pulley; 15. Support shaft; 16. Driven pulley. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Example:

[0031] Please see the appendix Figure 1 - Appendix Figure 8This invention provides a buried micro-powered domestic sewage treatment device, including a base 1. The entire device can effectively reduce the footprint by being buried underground, and the device is also more stable underground. An anoxic chamber 2 is fixedly connected to one side of the upper part of the base 1, and an aeration chamber 3 is fixedly connected to the other side of the upper part of the base 1. A conveying mechanism 7 is provided on the lower side inside the anoxic chamber 2. The conveying mechanism 7 can transfer the sewage in the device to the next treatment stage, thereby avoiding the cost increase caused by installing too many conveying pumps. A sludge discharge mechanism 6 is provided inside the aeration chamber 3. The sludge discharge mechanism 6 can quickly separate the sludge and sewage in the sewage, improve the efficiency of sludge separation, and avoid sludge deposition. A motor 13 is fixedly connected to the right side inside the base 1. The motor 13 is connected to an external power source. The motor 13 can be powered by adding a solar power generation device, making the device more energy-efficient and environmentally friendly.

[0032] The slag discharge mechanism 6 includes a rotating rod 601 and a feed bin 603. The lower end of the rotating rod 601 is fixedly connected to the output end of the motor 13. A spiral blade 602 is fixedly connected to the middle of the outer periphery of the rotating rod 601, and a scraper 607 is fixedly connected to the upper part of the outer periphery of the rotating rod 601. The feed bin 603 is fixedly connected to the middle of the bottom wall of the aeration chamber 3. The sewage inside the cylinder 706 is pushed by the piston 707 and passes through the one-way valve 705 into the conveying pipe 704. Subsequently, the sewage enters the feed bin 603. As the piston 707 moves back and forth continuously, the sewage continuously enters the feed bin 603 and seeps upward from the filter cartridge 604 into the aeration chamber 3. A filter cartridge 604 is fixedly connected to the upper part of the feed bin 603, and a convex plate 606 is fixedly connected to the upper part of the filter cartridge 604. An isolation shell 605 is fixedly connected to the upper part of the plate 606. An auger conveyor 608 is fixedly connected to the front side of the isolation shell 605. The sludge in the sewage is blocked by the filter cartridge 604 and continuously transported upward by the rotating spiral blades 602, so that the sludge and sewage are quickly separated. Then the sludge is transported to the upper part of the convex plate 606 and slides down the slope in the middle of the convex plate 606. At the same time, the rotating scraper 607 will continuously scrape the sludge, so that the sludge adheres tightly to the inner wall of the isolation shell 605 by the action of centrifugal force and enters the auger conveyor 608 and is transported out of the equipment. At this time, the sewage inside the aeration chamber 3 will undergo rapid aerobic reaction through the aeration pipe 5. By cooperating with the hydrolyzed acidification substances in the sewage, the organic matter in the sewage is degraded and purified.

[0033] An aeration chamber 3 is fixedly connected to a notched platform 4 at its upper part. Four aeration pipes 5 are fixedly connected to the inner edge of the notched platform 4. The lower part of the aeration pipes 5 is located inside the aeration chamber 3. The upper part of the isolation shell 605 is fixedly connected to the lower part of the notched platform 4. The aeration chamber 3 is aerated through the four aeration pipes 5 that extend into it, so that the aerobic bacteria in the wastewater can obtain sufficient oxygen to degrade and purify the organic matter in the wastewater.

[0034] An inlet 11 is fixedly connected to the left side of the anoxic chamber 2, and an end cap 8 is fixedly connected to the upper part of the anoxic chamber 2. A bar screen 9 is fixedly connected to the upper inner wall of the anoxic chamber 2, and a barrier bar 10 is fixedly connected to the lower side of the inside of the bar screen 9. The bar screen 9 and the inlet 11 are internally connected. The sewage entering the anoxic chamber 2 will be filtered through the barrier bar 10 inside the bar screen 9 to block and separate large debris and non-degradable plastics and other products in the sewage. The debris filtered in the upper part of the bar screen 9 can be cleaned by opening the sealing door at the top of the bar screen 9. An outlet 12 is fixedly connected to the lower right side of the aeration chamber 3. A solenoid valve is installed inside the outlet 12 and the inlet 11. By opening the solenoid valve inside the inlet 11, the sewage can be controlled to enter the equipment. By opening the solenoid valve inside the outlet 12, the degraded and purified sewage can be discharged from the equipment. At the same time, the other end of the outlet 12 is connected to the filtration equipment, which can collect the inorganic salts inside the purified sewage.

[0035] The outer periphery of the spiral blade 602 is in contact with the inner wall of the filter cylinder 604, so that the rotation of the spiral blade 602 can continuously transport the mud and sand that cannot pass through the filter cylinder 604 upwards, thereby discharging them into the equipment. The lower outer periphery of the spiral blade 602 is located inside the feed hopper 603, and the upper outer periphery of the spiral blade 602 is located on the upper side of the middle part of the convex plate 606. The lower part of the scraper 607 is in contact with the upper part of the convex plate 606, so that the mud and sand entering the feed hopper 603 can be transported to the upper part of the convex plate 606, and then scraped into the auger conveyor 608 by the rotating scraper 607 and discharged.

[0036] The upper end of the rotating rod 601 is rotatably connected to the lower side of the middle part of the notch platform 4. The lower side of the outer periphery of the rotating rod 601 penetrates the bottom of the aeration chamber 3 and is rotatably connected to the upper inner wall of the base 1, so that the rotating rod 601 can be stably supported inside the equipment and ensure that the rotating rod 601 can rotate stably. The outer periphery of the middle part of the auger conveyor 608 is fixedly connected to the inner wall of the front side of the aeration chamber 3. The auger conveyor 608 will directly discharge the conveyed mud and sand into the collection pool on the other side, thereby facilitating the unified recycling and treatment of mud and sand.

[0037] The conveying mechanism 7 includes a mud hopper 701, which is fixedly connected to the lower side of the interior of the anoxic chamber 2. A feed pipe 702 is fixedly connected to the lower part of the mud hopper 701. A one-way valve 703 is installed in the middle of the feed pipe 702. A cylinder 706 is fixedly connected to the lower end of the feed pipe 702. A conveying pipe 704 is fixedly connected to the right end of the cylinder 706. A second one-way valve 705 is installed on the left side of the conveying pipe 704. Wastewater enters the interior of the anoxic chamber 2 through the inlet 11. The wastewater then undergoes anaerobic treatment inside the anoxic chamber 2, causing the substances in the wastewater to hydrolyze and acidify. Then, the motor 13 is started, causing the rotating rod 601 to rotate. This, in turn, drives the support shaft 15 to rotate through the transmission of two pulleys. This causes the turntable 710 to drive the connecting shaft 709 to perform circular motion. Through the cooperation of the connecting shaft 709 and the connecting rod 708, the piston 707 is pulled to reciprocate inside the cylinder 706. When the piston 707 moves to the left, the anoxic chamber 2... Wastewater from internal hydrolysis and acidification is drawn into the cylinder 706 through the feed pipe 702 and one-way valve 703. A piston 707 is slidably connected to the left side of the cylinder 706. A support shaft 15 is rotatably connected to the left side of the base 1. The upper end of the support shaft 15 passes through the upper inner wall of the base 1 and is fixedly connected to a turntable 710. A connecting shaft 709 is fixedly connected to the upper edge of the turntable 710. A connecting rod 708 is provided between the connecting shaft 709 and the piston 707. When the piston 707 moves to the right, the wastewater inside the cylinder 706 is pushed by the piston 707 and passes through one-way valve 705 into the conveying pipe 704. Subsequently, the wastewater enters the feed hopper 603. As the piston 707 moves back and forth continuously, the wastewater continuously enters the feed hopper 603 and seeps upward from the filter cartridge 604 into the aeration chamber 3. The sludge in the wastewater is blocked by the filter cartridge 604 and continuously transported upward by the rotating spiral blades 602.

[0038] A driven pulley 16 is fixedly connected to the upper outer periphery of the support shaft 15, and a driving pulley 14 is fixedly connected to the lower end of the rotating rod 601. The driving pulley 14 and the driven pulley 16 are connected by a belt, so that when the equipment transports anaerobic wastewater, it can also discharge sludge quickly and efficiently.

[0039] One end of the connecting rod 708 is hinged to the middle left side of the piston 707, and the other end of the connecting rod 708 is rotatably connected to the outer circumference of the connecting shaft 709. The rotation of the turntable 710 drives the connecting shaft 709 to rotate, thereby enabling the connecting shaft 709 to pull the piston 707 to reciprocate inside the cylinder 706 via the connecting rod 708, and then transport the biochemically treated sewage inside the anoxic chamber 2 to the aeration chamber 3.

[0040] The right end of the conveying pipe 704 passes through the inner wall of the left side of the aeration chamber 3 and is fixedly connected to the left side of the feed chamber 603. The feed chamber 603 and the feed pipe 702 are connected in sequence through the conveying pipe 704 and the cylinder 706, so that the sewage inside the anoxic chamber 2 can quickly enter the aeration chamber 3 through the conveying mechanism 7, without the need for a conveying pump to transport the sewage, thus reducing the production cost of the equipment.

[0041] The piston 707 is located on the lower left side of the feed pipe 702. The outer periphery of the cylinder 706 is fixedly connected between the two sides of the lower part of the anoxic chamber 2. The piston 707 is located on the left side of the feed pipe 702 during its maximum stroke inside the cylinder 706, which prevents the sewage inside the anoxic chamber 2 from leaking from the inside of the cylinder 706 and also keeps the cylinder 706 in a stable state.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buried micro-powered domestic sewage treatment device, comprising a base (1), characterized in that, An anoxic chamber (2) is fixedly connected to one side of the upper part of the base (1), and an aeration chamber (3) is fixedly connected to the other side of the upper part of the base (1). A conveying mechanism (7) is provided inside the lower side of the anoxic chamber (2), and a slag discharge mechanism (6) is provided inside the aeration chamber (3). A motor (13) is fixedly connected to the right side of the inside of the base (1). The slag discharge mechanism (6) includes a rotating rod (601) and a feeding bin (603). The lower end of the rotating rod (601) is fixedly connected to the output end of the motor (13). A spiral blade (602) is fixedly connected to the middle of the outer periphery of the rotating rod (601). A scraper (607) is fixedly connected to the upper part of the outer periphery of the rotating rod (601). The feeding bin (603) is fixedly connected to the middle of the bottom wall of the aeration bin (3). A filter cartridge (604) is fixedly connected to the upper part of the feeding bin (603). A convex plate (606) is fixedly connected to the upper part of the filter cartridge (604). An isolation shell (605) is fixedly connected to the upper part of the convex plate (606). An auger conveyor (608) is fixedly connected to the front side of the isolation shell (605). The conveying mechanism (7) includes a mud hopper (701), which is fixedly connected to the lower side of the interior of the anoxic chamber (2). A feed pipe (702) is fixedly connected to the lower part of the mud hopper (701). A one-way valve (703) is provided in the middle of the feed pipe (702). A cylinder (706) is fixedly connected to the lower end of the feed pipe (702). A conveying pipe (704) is fixedly connected to the right end of the cylinder (706). The left side of the conveying pipe (704) is... A one-way valve (705) is provided. A piston (707) is slidably connected to the left side of the cylinder (706). A support shaft (15) is rotatably connected to the left side of the base (1). A turntable (710) is fixedly connected to the upper end of the support shaft (15) through the upper inner wall of the base (1). A connecting shaft (709) is fixedly connected to the upper edge of the turntable (710). A connecting rod (708) is provided between the connecting shaft (709) and the piston (707). The upper part of the outer periphery of the support shaft (15) is fixedly connected to the driven pulley (16), and the lower end of the rotating rod (601) is fixedly connected to the driving pulley (14). The driving pulley (14) and the driven pulley (16) are connected by a belt. The right end of the conveying pipe (704) passes through the inner wall of the left side of the aeration chamber (3) and is fixedly connected to the left side of the feed chamber (603). The feed chamber (603) and the feed pipe (702) are connected in sequence through the conveying pipe (704) and the cylinder (706).

2. The buried micro-powered domestic sewage treatment equipment according to claim 1, characterized in that, The aeration chamber (3) is fixedly connected to the upper part of the notched platform (4), and four aeration pipes (5) are fixedly connected to the inner edge of the notched platform (4). The lower part of the aeration pipes (5) is set inside the aeration chamber (3), and the upper part of the isolation shell (605) is fixedly connected to the lower part of the notched platform (4).

3. The buried micro-powered domestic sewage treatment equipment according to claim 1, characterized in that, An inlet (11) is fixedly connected to the left side of the anoxic chamber (2). An end cap (8) is fixedly connected to the upper part of the anoxic chamber (2). A grid well (9) is fixedly connected to the upper inner wall of the anoxic chamber (2). A barrier grid (10) is fixedly connected to the lower side inside the grid well (9). The grid well (9) and the inlet (11) are internally connected. An outlet (12) is fixedly connected to the lower right side of the aeration chamber (3). A solenoid valve is installed inside the outlet (12). A solenoid valve is installed inside the inlet (11).

4. The buried micro-powered domestic sewage treatment equipment according to claim 1, characterized in that, The outer periphery of the spiral blade (602) is in contact with the inner wall of the filter cartridge (604). The lower outer periphery of the spiral blade (602) is located inside the feed hopper (603). The upper outer periphery of the spiral blade (602) is located on the upper side of the middle part of the convex plate (606). The lower part of the scraper (607) is in contact with the upper part of the convex plate (606).

5. The buried micro-powered domestic sewage treatment equipment according to claim 1, characterized in that, The upper end of the rotating rod (601) is rotatably connected to the lower side of the middle part of the notch platform (4), and the lower side of the outer periphery of the rotating rod (601) passes through the bottom of the aeration chamber (3) and is rotatably connected to the upper inner wall of the base (1). The outer periphery of the middle part of the auger conveyor (608) is fixedly connected to the inner wall of the front side of the aeration chamber (3).

6. The buried micro-powered domestic sewage treatment equipment according to claim 1, characterized in that, One end of the connecting rod (708) is hinged to the middle of the left side of the piston (707), and the other end of the connecting rod (708) is rotatably connected to the outer periphery of the connecting shaft (709).

7. The underground micro-powered domestic sewage treatment equipment according to claim 1, characterized in that, The piston (707) is located on the right side of the lower left side of the feed pipe (702), and the cylinder body (706) is fixedly connected to the lower two sides of the anoxic chamber (2).

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