A high efficiency sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment, and discloses a high-efficiency sewage treatment device, which comprises a pretreatment box, wherein a chassis is installed at the bottom of the interior of the pretreatment box, a conical water receiving trough and a conical material receiving trough are provided on the top of the chassis, the conical water receiving trough and the conical material receiving trough are located at the bottom of the pretreatment box and are respectively connected to a drainage pipe and a discharge pipe, a sewage inlet pipe is fixedly installed on the top of the pretreatment box, the bottom of the sewage inlet pipe is located inside the pretreatment box, a motor is installed in the middle of the top of the pretreatment box, a disc is installed in the middle of the interior of the pretreatment box, a rotating shaft is fixedly installed in the middle of the top of the disc, the top of the rotating shaft is fixedly connected to the output end of the motor, and four filtering components are equidistantly installed on the bottom of the disc. The sewage treatment device has an effective solid-liquid filtering and separation structure, and the solid-liquid filtering and separation structure has a circulation adjustment function and a solid garbage automatic cleaning function, and can perform rotation adjustment and garbage cleaning operations at regular intervals.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a high-efficiency sewage treatment device. Background Art

[0002] Wastewater treatment refers to the process of subjecting wastewater containing various pollutants to a series of physical, chemical and biological treatment processes to meet certain discharge standards or reuse standards. This process aims to reduce water pollution and protect the environment and human health.

[0003] Sewage treatment usually includes the following steps: 1. Pretreatment: including solid-liquid separation, coarse screening, fine screening, sedimentation and other processes, aiming to remove large particles of impurities, silt and other substances in the wastewater; 2. Biological treatment: using microorganisms to degrade organic matter through bioreactors (such as activated sludge method, biofilm method, etc.), converting organic matter in sewage into harmless substances, and removing nutrients such as nitrogen and phosphorus; 3. Deep treatment: including adsorption, oxidation, advanced oxidation and other processes, used to remove difficult-to-degrade organic matter, heavy metal ions, etc.; 4. Disinfection: using chlorine, ozone and other disinfectants to disinfect the treated water to kill bacteria, viruses and other pathogenic microorganisms; 5. Desalination treatment: if sewage needs to be recycled, reverse osmosis, ion exchange and other processes can also be used to remove salt from the water to meet the reuse standards; modern sewage treatment technology is already very advanced, including biofilm reactors, membrane separation technology, ozone oxidation, ultraviolet disinfection, etc., these technologies make sewage treatment more efficient, energy-saving and environmentally friendly; in urban and industrial development, sewage treatment is an important link in ensuring water environment quality and sustainable development.

[0004] However, during the solid-liquid separation operation of the existing sewage pretreatment, long-term use will cause excessive impurities inside the equipment, causing blockage and difficulty in cleaning, thereby affecting the solid-liquid separation efficiency of the equipment. Therefore, improvements are now needed to address the above problems. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency sewage treatment device, comprising a pretreatment box, a chassis is installed at the bottom of the interior of the pretreatment box, a conical water receiving trough and a conical material receiving trough are opened on the top of the chassis, the conical water receiving trough and the conical material receiving trough are located at the bottom of the pretreatment box and are respectively connected to a drain pipe and a discharge pipe, a sewage inlet pipe is fixedly installed on the top of the pretreatment box, the bottom of the sewage inlet pipe is located inside the pretreatment box, a motor is installed in the middle of the top of the pretreatment box, a disc is installed in the middle of the interior of the pretreatment box, a rotating shaft is fixedly installed in the middle of the top of the disc, the top of the rotating shaft is fixedly connected to the output end of the motor, and four filtering components for dumping garbage are installed at equal distances on the bottom of the disc.

[0006] Preferably, four through-mounting openings are provided in an annular shape at equal distances on the surface of the disc, and the four through-mounting openings are all square structures. Four filtering components are respectively installed inside the four through-mounting openings, and one side of the upper part of the four through-mounting openings is provided with an inclined guide groove. The setting of the inclined guide groove can effectively guide the sewage, so that the sewage can effectively flow into the interior of the filtering component.

[0007] Preferably, the four filtering components each include a rotating connecting shaft, a square frame and a filter screen. The two sides of the middle of the square frame are rotatably connected to the lower part of the through-mounting port through the rotating connecting shaft, and the filter screen is fixedly installed at the bottom of the square frame, so as to effectively receive sewage and filter and separate solid waste.

[0008] Preferably, one end of one of the rotating connecting shafts on the four frames extends to the circumferential surface of the disk, and the surfaces of the four rotating connecting shafts located on the circumferential surface of the disk are fixedly connected with a first gear, a stabilizing sliding block and a second gear, the stabilizing sliding block is located between the first gear and the second gear, and the second gear is located at the end of the rotating connecting shaft.

[0009] Preferably, a first arcuate downward rack and a first arcuate upward rack are fixedly connected in the middle of the interior of the pretreatment box, the first arcuate upward rack and the first arcuate downward rack are staggered, and the first arcuate upward rack is located below the first arcuate downward rack, an arcuate L-shaped support plate is fixedly installed in the middle of the interior of the pretreatment box, the arcuate L-shaped support plate is located between the first arcuate downward rack and the first arcuate upward rack, and the first gear is transmission connected to the first arcuate downward rack and the first arcuate upward rack.

[0010] Preferably, a plurality of second arc-shaped downwardly directed racks and a plurality of second arc-shaped upwardly directed racks are fixedly installed at equal distances in the middle of the interior of the pretreatment box, the second arc-shaped downwardly directed racks and the second arc-shaped upwardly directed racks are staggered up and down, the second gear is located between the second arc-shaped downwardly directed racks and the second arc-shaped upwardly directed racks, the second arc-shaped downwardly directed racks and the second arc-shaped upwardly directed racks are arranged opposite to the arc-shaped L-shaped support strips, thereby enabling effective reciprocating rotation and shaking adjustment.

[0011] Preferably, four inverted L-shaped fixing rods are fixedly installed in an equidistant manner in a ring shape on the top of the disc, rollers are installed at the ends of the upper parts of the four inverted L-shaped fixing rods, a fixing ring is fixedly installed on the upper part of the interior of the pretreatment box, a roller ring groove is opened on the top of the fixing ring, and the four rollers are all located inside the roller ring groove.

[0012] Preferably, the sewage inlet pipe is located directly above the conical water receiving trough and can effectively receive the sewage after filtering the solid waste. Two inspection ports are opened on the surface of the pretreatment box. The insides of the two inspection ports are both equipped with sealing plates installed by screws. The two inspection ports are respectively arranged corresponding to the conical water receiving trough and the conical material receiving trough, so that the interior of the pretreatment box can be effectively inspected.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) During operation, the sewage treatment device has an effective solid-liquid filtration and separation structure by providing a pretreatment box, a chassis, a conical water receiving trough, a conical material receiving trough, a drain pipe, a discharge pipe, a sewage inlet pipe, a motor, a disc and a rotating shaft. The solid-liquid filtration and separation structure has a circulation adjustment function and an automatic solid garbage cleaning function. It can perform rotation adjustment and garbage cleaning operations at regular intervals, thereby avoiding the problems of blockage and difficulty in cleaning caused by long-term use, and effectively ensuring the quality and efficiency of sewage pretreatment. At the same time, the sewage treatment device has a simple structural design, is convenient and easy to use and operate, and is stable and reliable in adjustment and cleaning. Its performance can meet the use requirements of efficient sewage pretreatment;

[0015] (2) The sewage inlet pipe transports the sewage to the interior of the pretreatment box, and allows the sewage to flow into the through-mounting port and the inclined guide groove. Finally, the sewage filters the solid waste through the filter net, and the sewage flows into the interior of the conical water receiving trough and is discharged through the drain pipe for treatment; when the timing time is reached, the controller will start the motor, so that the motor drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the disc to rotate, and the rotation of the disc drives the filter net receiving the solid waste to rotate, so that the filter net with the solid waste rotates and is removed from between the sewage inlet pipe and the conical water receiving trough, and at the same time, another filter net will move between the sewage inlet pipe and the conical water receiving trough to continue the filtering and separation operation of the solid waste; during the rotation of the disc, the enlarged opening area structure at the upper part of the conical water receiving trough can effectively receive the sewage;

[0016] (3) When the disc rotates, it will drive the stable sliding block to slide on the top of the arc-shaped L-shaped support strip, and at the same time, it will drive the first gear and the second gear to move. Then, the stable sliding block on the box with garbage will separate from the arc-shaped L-shaped support strip, and at the same time, the first gear on the box with garbage will contact the first arc-shaped upward gear rack and rotate 90° thereon. The 90° rotation of the first gear will drive the rotating connecting shaft, the box and the filter screen to rotate 90°. At this time, the box with garbage and the filter screen will move from the top of the conical water receiving trough to the top of the conical material receiving trough, so that the garbage inside the filter screen falls into the inside of the conical material receiving trough and is discharged and processed through the discharge pipe;

[0017] When the first gear rotates 90°, as the disc continues to rotate 90°, the first gear will separate from the first arc-shaped upward rack, and the second gear will contact the second arc-shaped downward rack and the second arc-shaped upward rack in sequence, so that the second gear will continuously rotate forward and reverse during the movement. The continuous forward and reverse rotation of the second gear will drive the frame and the filter screen to continuously rotate forward and reverse, so that the solid waste stuck inside the filter screen can effectively fall into the inner garbage of the conical receiving trough;

[0018] Afterwards, as the disc rotates 90° again, the second gear will be separated from the second arc-shaped downward gear rack and the second arc-shaped upward gear rack. At this time, the first gear will contact the first arc-shaped downward gear rack and rotate 90° in the opposite direction, thereby driving the filter screen to rotate 90° in the opposite direction and face upward. After that, the first gear will be separated from the first arc-shaped downward gear rack, and at the same time, the stable sliding block will slide in contact with the arc-shaped L-shaped support plate to limit the position.

[0019] The timed start of the motor will cause the disc to rotate 90° each time. At the same time, the four filters will alternately receive the garbage, and the filter will automatically dump the garbage, thus avoiding the problems of blockage and difficulty in cleaning caused by long-term use, and effectively ensuring the quality and efficiency of sewage pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] In the attached picture:

[0022] Figure 1 It is a structural schematic diagram of a high-efficiency sewage treatment device of the present invention;

[0023] Figure 2 For the present invention Figure 1 A schematic cross-sectional structure diagram of;

[0024] Figure 3 For the present invention Figure 2 The local structure of Figure 1 ;

[0025] Figure 4 For the present invention Figure 2 The local structure of Figure 2 ;

[0026] Figure 5 For the present invention Figure 4 A schematic cross-sectional structure diagram of;

[0027] Figure 6It is a schematic diagram of the top view of the conical water receiving trough of the present invention;

[0028] Figure 7 It is a schematic diagram of a partial top-sectional structure of a pretreatment box of the present invention;

[0029] Figure 8 It is a schematic diagram of the top view of the disc of the present invention;

[0030] In the figure: 1. pretreatment box; 2. chassis; 3. conical water receiving trough; 4. conical material receiving trough; 5. drain pipe; 6. discharge pipe; 7. sewage inlet pipe; 8. motor; 9. disc; 10. rotating shaft; 11. filter component; 12. through installation port; 13. inclined guide groove; 14. rotating connecting shaft; 15. frame; 16. filter screen; 17. first gear; 18. stable sliding block; 19. second gear; 20. first arc-shaped downward rack; 21. first arc-shaped upward rack; 22. arc-shaped L-shaped support plate; 23. second arc-shaped downward rack; 24. second arc-shaped upward rack; 25. inverted L-shaped fixing rod; 26. roller; 27. fixing ring; 28. roller ring groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1, by Figures 1 to 8 The present invention comprises a pretreatment box 1, a chassis 2 is installed at the bottom of the pretreatment box 1, a conical water receiving trough 3 and a conical material receiving trough 4 are provided on the top of the chassis 2, and one side of the upper part of the conical water receiving trough 3 and the conical material receiving trough 4 are inclined toward one side in an arc trajectory to increase the opening area, which is beneficial to the reception of water and solid waste.

[0033] The conical water receiving trough 3 and the conical material receiving trough 4 are located at the bottom of the pretreatment box 1 and are respectively connected to a drain pipe 5 and a discharge pipe 6. A sewage inlet pipe 7 is fixedly installed on the top of the pretreatment box 1. The bottom of the sewage inlet pipe 7 is located inside the pretreatment box 1. The sewage inlet pipe 7 is located directly above the conical water receiving trough 3 and can effectively receive sewage after filtering solid garbage. A motor 8 is installed in the middle of the top of the pretreatment box 1, and a disc 9 is installed in the middle of the inside of the pretreatment box 1. A rotating shaft 10 is fixedly installed in the middle of the top of the disc 9, and the top of the rotating shaft 10 is fixedly connected to the output end of the motor 8.

[0034] A waterproof cover is installed on the surface of the motor 8, and a controller is installed on the surface of the pretreatment box 1. The controller is connected to the motor 8 to control the motor 8 to start at a time. Four filtering components 11 for dumping garbage are installed at equal distances at the bottom of the disc 9. Two inspection ports are opened on the surface of the pretreatment box 1. Sealing plates are installed inside the two inspection ports by screws. The two inspection ports are respectively arranged corresponding to the conical water receiving trough 3 and the conical material receiving trough 4, so that the interior of the pretreatment box 1 can be effectively inspected.

[0035] Embodiment 2, on the basis of embodiment 1, four through-mounting openings 12 are provided in an annular shape at equal intervals on the surface of the disc 9, and the four through-mounting openings 12 are all of square structure, and four filter components 11 are respectively installed inside the four through-mounting openings 12, and one side of the upper part of the four through-mounting openings 12 is provided with an inclined guide groove 13, and the setting of the inclined guide groove 13 can effectively guide the sewage, so that the sewage can effectively flow into the interior of the filter component 11, and the four filter components 11 include a rotating connecting shaft 14, a square frame 15 and a filter screen 16, and the two sides of the middle part of the square frame 15 are rotatably connected to the lower part of the through-mounting opening 12 through the rotating connecting shaft 14, and the filter screen 16 is fixedly installed at the bottom of the square frame 15, so that the sewage can be effectively received and the solid waste can be filtered and separated;

[0036] The sewage inlet pipe 7 transports the sewage to the interior of the pretreatment box 1, and allows the sewage to flow into the through-mounting port 12 and the inclined guide groove 13. Finally, the sewage passes through the filter screen 16 to filter the solid waste. The sewage flows into the interior of the conical water receiving trough 3 and is discharged through the drain pipe 5.

[0037] When the timing is reached, the controller starts the motor 8, so that the motor 8 drives the rotating shaft 10 to rotate, and the rotation of the rotating shaft 10 drives the disc 9 to rotate, and the rotation of the disc 9 drives the filter screen 16 receiving the solid waste to rotate, so that the filter screen 16 with the solid waste rotates and is removed from between the sewage inlet pipe 7 and the conical water receiving tank 3, and at the same time, another filter screen 16 moves between the sewage inlet pipe 7 and the conical water receiving tank 3 to continue the filtering and separation operation of the solid waste;

[0038] During the rotation of the disc 9, the sewage can be effectively received through the enlarged opening area structure at the upper part of the conical water receiving trough 3.

[0039] One end of one of the rotating connecting shafts 14 on the four square frames 15 extends to the circumferential surface of the disc 9, and the surfaces of the four rotating connecting shafts 14 located on the circumferential surface of the disc 9 are fixedly connected with a first gear 17, a stable sliding block 18 and a second gear 19, the stable sliding block 18 is located between the first gear 17 and the second gear 19, and the second gear 19 is located at the end of the rotating connecting shaft 14, and a first arc-shaped downward gear rack 20 and a first arc-shaped upward gear rack 21 are fixedly connected to the middle part of the interior of the pretreatment box 1, and the first arc-shaped upward gear rack 21 is staggered with the first arc-shaped downward gear rack 20, and the first arc-shaped upward gear rack 21 is located below the first arc-shaped downward gear rack 20 An arc-shaped L-shaped support strip 22 is fixedly installed in the middle of the interior of the pretreatment box 1, and the cross-section of the arc-shaped L-shaped support strip 22 is an L-shaped structure. The arc-shaped L-shaped support strip 22 is located between the first arc-shaped downward rack 20 and the first arc-shaped upward rack 21. The first gear 17 is transmission-connected with the first arc-shaped downward rack 20 and the first arc-shaped upward rack 21. The contact tooth parts of the first arc-shaped downward rack 20 and the first arc-shaped upward rack 21 with the first gear 17 are inclined structures, and the first gear 17 is a bevel gear structure. The first gear 17 matches the first arc-shaped downward rack 20 and the first arc-shaped upward rack 21, so that the transmission flipping adjustment can be effectively performed.

[0040] A plurality of second arc-shaped downwardly directed rack gears 23 and a plurality of second arc-shaped upwardly directed rack gears 24 are fixedly installed at equal distances in the middle of the interior of the pretreatment box 1. The second arc-shaped downwardly directed rack gears 23 and the second arc-shaped upwardly directed rack gears 24 are staggered up and down. The second gear 19 is located between the second arc-shaped downwardly directed rack gears 23 and the second arc-shaped upwardly directed rack gears 24. The second arc-shaped downwardly directed rack gears 23 and the second arc-shaped upwardly directed rack gears 24 are arranged opposite to the arc-shaped L-shaped supporting plate strip 22. The contact tooth portions of the second arc-shaped downwardly directed rack gears 23 and the second arc-shaped upwardly directed rack gears 24 and the second gear 19 are of an inclined structure, and the second gear 19 is of a bevel gear structure. The second gear 19 matches the second arc-shaped downwardly directed rack gears 23 and the second arc-shaped upwardly directed rack gears 24, so that reciprocating rotation and shaking adjustment can be effectively performed.

[0041] When one of the square frames 15 and the filter screen 16 thereon is located between the sewage inlet pipe 7 and the conical water receiving tank 3 to receive sewage and filter solid garbage, the stable sliding block 18 on the square frame 15 will slide in contact with the top of the arc-shaped L-shaped support strip 22. Through the contact between the stable sliding block 18 and the arc-shaped L-shaped support strip 22, the rotating connecting shaft 14 on the square frame 15 cannot be rotated and adjusted. Therefore, when sewage and garbage flow into the interior of the filter screen 16, the impact force of the flowing water and garbage will not cause the square frame 15 and the filter screen 16 to rotate and shake, thereby effectively ensuring the stability of the filtering and separation.

[0042] When the disc 9 rotates, it will drive the stable sliding block 18 to slide on the top of the arc-shaped L-shaped supporting strip 22, and at the same time, it will also drive the first gear 17 and the second gear 19 to move. Then, the stable sliding block 18 on the square frame 15 with garbage will be separated from the arc-shaped L-shaped supporting strip 22, and at the same time, the first gear 17 on the square frame 15 with garbage will contact the first arc-shaped upward gear rack 21 and rotate 90° thereon. The 90° rotation of the first gear 17 will drive the rotating connecting shaft 14, the square frame 15 and the filter screen 16 to rotate 90°. At this time, the square frame 15 with garbage and the filter screen 16 will move from above the conical water receiving trough 3 to above the conical material receiving trough 4, so that the garbage inside the filter screen 16 falls into the inside of the conical material receiving trough 4 and is discharged and processed through the discharge pipe 6;

[0043] When the first gear 17 rotates 90°, as the disc 9 continues to rotate 90°, the first gear 17 will separate from the first arc-shaped upward rack 21, and the second gear 19 will contact the second arc-shaped downward rack 23 and the second arc-shaped upward rack 24 in sequence, so that the second gear 19 will continuously rotate forward and reverse during the movement. The continuous forward and reverse rotation of the second gear 19 will drive the frame 15 and the filter screen 16 to continuously rotate forward and reverse, so that the solid waste stuck inside the filter screen 16 can effectively fall into the inner garbage of the conical receiving trough 4;

[0044] Afterwards, as the disc 9 rotates 90° again, the second gear 19 is separated from the second arc-shaped downward gear rack 23 and the second arc-shaped upward gear rack 24. At this time, the first gear 17 is in contact with the first arc-shaped downward gear rack 20 and rotates 90° in the opposite direction, thereby driving the filter screen 16 to rotate 90° in the opposite direction and face upward. Then, the first gear 17 is separated from the first arc-shaped downward gear rack 20, and at the same time, the stabilizing sliding block 18 is in sliding contact with the arc-shaped L-shaped supporting plate 22 to limit the position.

[0045] The timed start of the motor 8 causes the disc 9 to rotate 90° each time. At the same time, the garbage is received alternately by the four filters 16, and the garbage is automatically dumped by the filters 16, thereby avoiding the problems of blockage and difficulty in cleaning caused by long-term use, and effectively ensuring the quality and efficiency of sewage pretreatment.

[0046] Embodiment 3, on the basis of embodiment 1, four inverted L-shaped fixing rods 25 are fixedly installed in an equidistant manner in a ring on the top of the disc 9, and rollers 26 are installed at the ends of the upper parts of the four inverted L-shaped fixing rods 25. A fixing ring 27 is fixedly installed on the upper part of the interior of the pretreatment box 1, and a roller ring groove 28 is opened on the top of the fixing ring 27. The four rollers 26 are all located inside the roller ring groove 28, so that they can effectively carry out load-bearing support. When the disc 9 rotates, it will drive the four rollers 26 to roll and rotate inside the roller ring groove 28, so that the four rollers 26 roll inside the roller ring groove 28, so that the disc 9 can be stably and effectively rotated and adjusted.

[0047] The sewage treatment device has an effective solid-liquid filtration and separation structure, and the solid-liquid filtration and separation structure has a circulation adjustment function and an automatic solid waste cleaning function. It can perform rotation adjustment and waste cleaning operations at regular intervals, thereby avoiding blockage and difficulty in cleaning caused by long-term use, and effectively ensuring the quality and efficiency of sewage pretreatment.

[0048] The sewage treatment device has a simple structural design, is easy to use and operate, and is stable and reliable in adjustment and cleaning. Its performance can meet the requirements for efficient sewage pretreatment.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency sewage treatment device, comprising a pretreatment tank (1), characterized in that: A chassis (2) is installed at the bottom of the pretreatment box (1), a conical water receiving trough (3) and a conical material receiving trough (4) are provided at the top of the chassis (2), the conical water receiving trough (3) and the conical material receiving trough (4) are located at the bottom of the pretreatment box (1) and are respectively connected to a drainage pipe (5) and a discharge pipe (6), a sewage inlet pipe (7) is fixedly installed at the top of the pretreatment box (1), the bottom of the sewage inlet pipe (7) is located inside the pretreatment box (1), a motor (8) is installed in the middle of the top of the pretreatment box (1), a disc (9) is installed in the middle of the pretreatment box (1), a rotating shaft (10) is fixedly installed in the middle of the top of the disc (9), the top of the rotating shaft (10) is fixedly connected to the output end of the motor (8), and four filter components (11) for dumping garbage are installed at equal distances at the bottom of the disc (9); The surface of the disc (9) is provided with four through-mounting openings (12) at equal intervals in an annular shape. The four through-mounting openings (12) are all of a square structure. Four filter components (11) are respectively installed inside the four through-mounting openings (12). An inclined guide groove (13) is provided on one side of the upper portion of the four through-mounting openings (12). The four filter components (11) each include a rotating connecting shaft (14), a square frame (15) and a filter screen (16). Both sides of the middle portion of the square frame (15) are rotatably connected to the lower portion of the through-mounting opening (12) via the rotating connecting shaft (14). The filter screen (16) is fixedly installed at the bottom of the square frame (15). One end of one of the rotating connecting shafts (14) on the four square frames (15) extends to the circumferential surface of the disk (9), and the surfaces of the four rotating connecting shafts (14) located on the circumferential surface of the disk (9) are fixedly connected with a first gear (17), a stable sliding block (18) and a second gear (19), the stable sliding block (18) is located between the first gear (17) and the second gear (19), and the second gear (19) is located at the end of the rotating connecting shaft (14). The middle part of the interior of the pretreatment box (1) is fixedly connected with a first arc-shaped downwardly facing rack (20) and a first arc-shaped An upward toothed rack (21), the first arcuate upward toothed rack (21) and the first arcuate downward toothed rack (20) are arranged in a staggered manner, and the first arcuate upward toothed rack (21) is located below the first arcuate downward toothed rack (20), an arcuate L-shaped support plate (22) is fixedly installed in the middle of the interior of the pretreatment box (1), and the arcuate L-shaped support plate (22) is located between the first arcuate downward toothed rack (20) and the first arcuate upward toothed rack (21), and the first gear (17) is drivingly connected to the first arcuate downward toothed rack (20) and the first arcuate upward toothed rack (21); A plurality of second arc-shaped downwardly directed rack gears (23) and a plurality of second arc-shaped upwardly directed rack gears (24) are fixedly installed at equal distances in the middle of the interior of the pretreatment box (1); the second arc-shaped downwardly directed rack gears (23) and the second arc-shaped upwardly directed rack gears (24) are arranged in an up-and-down staggered manner; the second gear (19) is located between the second arc-shaped downwardly directed rack gears (23) and the second arc-shaped upwardly directed rack gears (24); and the second arc-shaped downwardly directed rack gears (23) and the second arc-shaped upwardly directed rack gears (24) are arranged opposite to the arc-shaped L-shaped support strip (22).

2. The high-efficiency sewage treatment device according to claim 1 is characterized in that: Four inverted L-shaped fixing rods (25) are fixedly mounted at equal intervals in an annular manner on the top of the disc (9); rollers (26) are mounted on the ends of the upper parts of the four inverted L-shaped fixing rods (25); a fixing ring (27) is fixedly mounted on the upper part of the interior of the pretreatment box (1); a roller ring groove (28) is formed on the top of the fixing ring (27); and the four rollers (26) are located inside the roller ring groove (28).

3. The high-efficiency sewage treatment device according to claim 1 is characterized in that: The sewage inlet pipe (7) is located directly above the conical water receiving trough (3) and can effectively receive sewage after filtering the solid waste.

4. The high-efficiency sewage treatment device according to claim 1 is characterized in that: The surface of the pretreatment box (1) is provided with two inspection openings, and the interiors of the two inspection openings are both mounted by screws.

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