A multi-stage rural sewage treatment device

Abstract

The present invention belongs to the technical field of sewage treatment and discloses a multi-stage treatment device for rural sewage, comprising a secondary sedimentation tank, wherein the top outer wall of the secondary sedimentation tank is fixedly connected with a beam bridge, the top outer wall of the beam bridge is provided with a through hole connected to the inner wall, the inner wall of the through hole is provided with, the outer shaft sleeve is fixedly connected to the inner wall of the through hole, the inner shaft sleeve is fixedly connected with an outer rotating tube, the bottom of the outer wall of both sides of the outer rotating tube is fixedly connected with an extension frame, the bottom outer wall of the extension frame is fixedly connected with a polymer scraper, and the bottom inner wall of the first-level screening tank is fixedly connected with a plurality of supporting springs; through the operation of the first operating motor in the working box, the meshing connection of gear one and gear two is utilized to drive the outer rotating tube and the extension frame to rotate with the screening mesh plate as the axis, and the plurality of polymer scrapers on the extension frames on both sides are staggered and tilted, so that the silt can be aggregated toward the center into the sediment discharge valve pipe and then discharged.

Description

Technical Field

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

[0002] For example, the national patent publication number CN116738929A proposes a multi-stage rural sewage treatment device. By setting up a water inlet filtration mechanism, it can filter and remove large-volume garbage in the sewage in advance. By setting up a sedimentation and impurity removal mechanism, it can precipitate and remove large-density sludge and feces in the sewage. By setting up a dosing treatment mechanism, it can dose and adjust the filtered sewage to ensure the environmental friendliness of sewage discharge. In addition, through the automatic drug discharging mechanism, it can automatically discharge the liquid in batches according to the liquid level of the sewage. It has low dependence on electrical equipment, is easy to maintain, has low equipment cost, and has good use effect.

[0003] However, the conventional device still has the following problems when used:

[0004] After screening out the high-density solid sludge, the fine sand and gravel in the water flow are still enough to accumulate a large amount of silt and impurities at the bottom of the pool after sedimentation. The silt at the bottom of the pool is difficult to clean manually and can easily clog the flow pipes of the rear dosing and regulating tank. Therefore, the sewage treatment device needs to be improved. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a multi-stage rural sewage treatment device with better sediment screening and discharge effect.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-stage rural sewage treatment device, comprising a secondary sedimentation tank, wherein the top outer wall of the secondary sedimentation tank is fixedly connected with a beam bridge, the top outer wall of the beam bridge is provided with a through hole connected to the inner wall, the inner wall of the through hole is provided with, the outer shaft sleeve is fixedly connected to the inner wall of the through hole, the inner shaft sleeve is fixedly connected with an outer rotating tube, the bottom of the outer walls on both sides of the outer rotating tube are fixedly connected with an extension frame, the bottom outer wall of the extension frame is fixedly connected with a polymer scraper, the bottom inner wall of the first-level sub-screening tank is fixedly connected with a plurality of support springs, the top outer walls of the plurality of support springs are fixedly connected with the same sub-screening plate, the sub-screening plate is provided with dense mesh holes connected up and down, and the bottom outer wall of the polymer scraper is movably fitted with the top outer wall of the sub-screening plate.

[0007] Preferably, a first-level screening pool and a third-level medicine spreading pool are respectively established on both sides of the secondary sedimentation pool, a screening frame is fixedly installed on the inner wall of the first-level screening pool, a first-level pump pipe is fixedly connected to the first-level screening pool, a second-level pump pipe is fixedly connected between the first-level screening pool and the secondary sedimentation pool, a third-level pump pipe is fixedly connected between the secondary sedimentation pool and the third-level medicine spreading pool, and a discharge pump pipe is fixedly installed on the inner wall of the third-level medicine spreading pool.

[0008] Preferably, the top outer wall of the beam bridge is fixedly connected to a working box, the inner wall of the working box is fixedly connected to a first operating motor, the bottom inner wall of the working box is rotatably connected to gear one, the axis of the first operating motor is fixedly connected to the outer wall of gear one, the top end of the outer rotating tube passes through the bottom outer wall of the working box and is located in the inner cavity of the working box, the outer wall of the outer rotating tube is fixedly connected to gear two, and gear two is fixedly connected to the outer wall of gear one.

[0009] Preferably, the inner wall of the outer rotating tube is sleeved with a middle-layer percussion tube, the bottom outer wall of the middle-layer percussion tube is fixedly connected with a ring plate, the axial position of the sub-screen plate is fixedly connected with a sediment discharge valve pipe, the outer wall of one end of the sediment discharge valve pipe away from the sub-screen plate is connected to an external sewage pump pool, the outer wall of the sub-screen plate is fixedly connected with an elastic rubber strip, and the outer wall of the elastic rubber strip is fixedly connected to the inner wall of the secondary sedimentation tank.

[0010] Preferably, the inner wall of the outer rotating tube is fixedly connected with an adjusting sleeve, the inner wall of the adjusting sleeve is movably fitted with the outer wall of the middle percussion tube, the inner wall of the adjusting sleeve is provided with a reciprocating rotary groove, and the outer wall of one side of the middle percussion tube is fixedly connected with an adjusting slider, and the outer wall of the adjusting slider is slidably connected with the inner wall of the reciprocating rotary groove.

[0011] Preferably, the outer wall of the middle-layer percussion tube is fixedly connected to a pressure plate, the outer wall of the middle-layer percussion tube is sleeved with a limiting spring, the top outer wall of the limiting spring is fixedly connected to the bottom outer wall of the pressure plate, and the bottom outer wall of the limiting spring is fixedly connected to the bottom inner wall of the outer-layer rotating tube.

[0012] Preferably, the inner wall of the working box is fixedly connected to the limiting guide rail, the outer wall of the top side of the middle-layer knocking tube is fixedly connected to the limiting strip, and the outer wall of the limiting strip is slidably connected to the inner wall of the limiting guide rail.

[0013] Preferably, the inner wall of the middle-layer percussion tube is sleeved with an inner-layer linkage tube, and the upper and lower outer walls of the inner-layer linkage tube are each provided with a connecting sleeve. The inner sleeve of the connecting sleeve is fixedly connected to the outer wall of the inner-layer linkage tube, and the outer sleeve of the connecting sleeve is fixedly connected to the inner wall of the middle-layer percussion tube. The bottom outer wall of the inner-layer linkage tube is fixedly connected with a protective hose, and the bottom outer wall of the protective hose is fixedly connected with a vibrating rod, and the vibrating rod is located at the axial center position of the sediment discharge valve tube.

[0014] Preferably, the inner wall of the vibrating rod is provided with a connecting shaft, and the upper and lower outer walls of the connecting shaft are both provided with connecting sleeves 2, the inner sleeve of the connecting sleeve 2 is fixedly connected to the outer wall of the connecting shaft, the outer sleeve of the connecting sleeve 2 is fixedly connected to the inner wall of the vibrating rod, one side outer wall of the connecting shaft is fixedly connected with a polarization stator, the top outer wall of the connecting shaft is fixedly connected with a spring-type connecting hose, the inner wall of the middle-layer percussion tube is fixedly connected with a second running motor, and the axis of the second running motor is fixedly connected to the top outer wall of the spring-type connecting hose.

[0015] Preferably, the inner wall of the outer rotating tube is fixedly connected to an outer mounting sleeve, and the inner wall of the outer mounting sleeve is fixedly installed with multiple magnetic blocks 1. The outer wall of the inner linkage tube is fixedly connected to an inner mounting sleeve, and the outer wall of the inner mounting sleeve is fixedly installed with multiple magnetic blocks 2. The magnetic block 1 is magnetically connected to the magnetic block 2 via the middle-layer knocking tube.

[0016] Preferably, a deflection magnetic strip is fixedly connected to the outer wall of one side of the vibrating rod, and a mounting plate is fixedly installed on the sub-screen plate at the connection of the sediment discharge valve pipe, and a plurality of deflection magnetic blocks are fixedly installed on the inner wall of the mounting plate, and the deflection magnetic strip is magnetically connected to the deflection magnetic block.

[0017] Preferably, the top outer wall of the vibrating rod is fixedly connected to a positioning plate, and the top outer wall of the positioning plate is movably fitted with the bottom outer wall of the middle-layer percussion tube.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the present invention, the operation of the first operating motor in the working box is utilized to utilize the meshing connection of gear one and gear two to drive the outer rotating tube and the extension frame to rotate with the screen plate as the axis, and the multiple aggregate scrapers on the extension frames on both sides are staggered and tilted, so that the silt can be aggregated toward the center into the sediment discharge valve pipe and then discharged. In the present invention, the sliding connection between the limit guide rail and the limit bar allows the middle-layer knocking tube and the adjustment slider to only slide vertically up and down, and the rotation of the outer rotating tube will drive the outer mounting sleeve to rotate synchronously, and the rotation of the outer mounting sleeve will drive the adjustment slider to reciprocate in the rotary groove The adjusting slider slides inwards, and rises from the bottom side of the reciprocating rotary slide to the top side, driving the middle-layer knocking tube to move up and stretching the limit spring at the same time. Then the adjusting slider on the top side quickly drops to the bottom side, and the limit spring that is stretched and deformed will drive the middle-layer knocking tube to rebound quickly. At this time, the ring plate at the bottom of the middle-layer knocking tube will hit the outer wall of the sub-screen plate, driving the sub-screen plate to shake greatly, and using the water flow at the bottom of the secondary sedimentation tank to reversely impact the mesh of the sub-screen plate. Through this device, when the sediment is aggregated, it can avoid the sediment from completely blocking the mesh, thereby ensuring the normal circulation of mud and water separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the upper left structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the right rear structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the half-section structure of the first-stage screening tank of the present invention.

[0024] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A.

[0025] Figure 6 It is a schematic diagram of the internal structure of the working box of the present invention after half-section.

[0026] Figure 7 This is a schematic diagram of the internal structure of the outer rotating tube of the present invention after half-section.

[0027] Figure 8 This is a schematic diagram of the internal structure of the adjustment sleeve of the present invention after half-sectioning the front half.

[0028] Figure 9 The figure is a schematic diagram of the internal structure of the rear half of the adjustment sleeve of the present invention after half-section.

[0029] Figure 10 This is a schematic diagram of the outer mounting sleeve structure of the present invention.

[0030] Figure 11 It is a schematic diagram of the overall structure of the middle-layer percussion tube of the present invention.

[0031] Figure 12 This is a schematic diagram of the internal structure of the middle layer percussion tube of the present invention after half-sectioning.

[0032] Figure 13 This is a schematic diagram of the internal structure of the vibrating rod of the present invention after half-sectioning.

[0033] Figure: 1, secondary sedimentation tank; 2, primary screening tank; 3, tertiary spraying tank; 4, primary pump pipe; 5, secondary pump pipe; 6, tertiary pump pipe; 7, discharge pump pipe; 8, screening rack; 9, beam bridge; 10, working box; 11, outer rotating pipe; 12, extension frame; 13, aggregate scraper; 14, gear 1; 15, first operating motor; 16, gear 2; 17, middle knocking pipe; 18, ring plate; 19, limit bar; 20, limit guide rail; 21, adjustment sleeve; 22, reciprocating slide; 23, adjustment slider; 24, pressure plate ; 25. Limit spring; 26. Inner linkage tube; 27. Connecting sleeve 1; 28. Protective hose; 29. Vibrating rod; 30. Connecting sleeve 2; 31. Polarization stator; 32. Spring-type connecting hose; 33. Second operating motor; 34. Outer mounting sleeve; 35. Magnetic block 1; 36. Inner mounting sleeve; 37. Magnetic block 2; 38. Deflection magnetic strip; 39. Connecting shaft; 40. Mounting plate; 41. Deflection magnetic block; 42. Screening plate; 43. Sediment discharge valve pipe; 44. Support spring; 45. Elastic rubber strip; 46. Positioning plate. DETAILED DESCRIPTION

[0034] In order to clearly and completely describe the objectives and technical solutions of the present invention and make its advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] For example 1, please refer to Figures 1 to 13The present invention provides a technical solution: a multi-stage rural sewage treatment device, comprising a secondary sedimentation tank 1, the top outer wall of the secondary sedimentation tank 1 is fixedly connected with a beam bridge 9, the top outer wall of the beam bridge 9 is provided with a through hole connected to the inner wall, the inner wall of the through hole is provided with 48, the outer shaft sleeve of 48 is fixedly connected to the inner wall of the through hole, the inner shaft sleeve of 48 is fixedly connected with an outer rotating tube 11, the bottom of the outer wall of both sides of the outer rotating tube 11 is fixedly connected with an extension frame 12, the bottom outer wall of the extension frame 12 is fixedly connected with a polymer scraper 13, the bottom inner wall of the first-level sub-screening tank 2 is fixedly connected with a plurality of supporting springs 44, the top outer wall of the plurality of supporting springs 44 is fixedly connected with the same sub-screening plate 42, the sub-screening plate 42 is provided with dense mesh holes connected up and down, the bottom outer wall of the polymer scraper 13 is movably fitted with the top outer wall of the sub-screening plate 42, and the two sides of the secondary sedimentation tank 1 are also respectively constructed There are a first-level screening pool 2 and a third-level medicine spreading pool 3. The inner wall of the first-level screening pool 2 is fixedly installed with a screening frame 8. The first-level screening pool 2 is fixedly connected with a first-level pump pipe 4. The first-level screening pool 2 and the second-level sedimentation pool 1 are fixedly connected with a second-level pump pipe 5. The second-level sedimentation pool 1 and the third-level medicine spreading pool 3 are fixedly connected with a third-level pump pipe 6. The inner wall of the third-level medicine spreading pool 3 is fixedly installed with a discharge pump pipe 7. The top outer wall of the beam bridge 9 is fixedly connected with a working box 10. The inner wall of the working box 10 is fixedly connected with a first operating motor 15. The bottom inner wall of the working box 10 is rotatably connected with a gear 14. The axis of the first operating motor 15 is fixedly connected to the outer wall of the gear 14. The top end of the outer rotating tube 11 passes through the bottom outer wall of the working box 10 and is located in the inner cavity of the working box 10. The outer wall of the outer rotating tube 11 is fixedly connected with a gear 2 16, and the gear 2 16 is fixedly connected to the outer wall of the gear 14. The inner wall of the outer rotating tube 11 is sleeved with the middle percussion tube 17, and the bottom outer wall of the middle percussion tube 17 is fixedly connected with the ring plate 18. The axial position of the sub-screen plate 42 is fixedly connected with the sediment discharge valve pipe 43, and the outer wall of the sediment discharge valve pipe 43 away from the sub-screen plate 42 is connected to the external sewage pump pool. The outer wall of the sub-screen plate 42 is fixedly connected with an elastic rubber strip 45, and the outer wall of the elastic rubber strip 45 is fixedly connected to the inner wall of the secondary sedimentation tank 1.

[0036] In the present invention, the first step is: the sewage is discharged into the first-level screening tank 2 through the first-level pump pipe 4, and the large-volume solid pollutants such as branches, plastics and mud blocks can be screened out by installing a screening frame 8 on the upper layer of the first-level screening tank 2. Then, the sewage in the first-level screening tank 2 is synchronously discharged into the second-level sedimentation tank 1 through the second-level pump pipe 5; the second step is: fine sediment is deposited through the screening plate 42 in the second-level sedimentation tank 1, and the sediment is gathered to the center position by the operation of the polymer scraper 13, and is discharged to the external sewage pump tank through the sediment discharge valve pipe 43. The water flow after screening out the sediment passes through the screening plate 42. The dense mesh of the plate 42 flows to the bottom of the secondary sedimentation tank 1, and is discharged into the tertiary spraying tank 3 through the tertiary pump pipe 6; the first step: the sewage in the tertiary spraying tank 3 is sprayed with medicine and precipitated, and discharged through the discharge pump pipe 7 after meeting the discharge standard; in the present invention, through the operation of the first operating motor 15 in the working box 10, the meshing connection of gear 14 and gear 2 16 is utilized to drive the outer rotating tube 11 and the extension frame 12 to rotate with the sub-screen plate 42 as the axis, and the multiple polymer scrapers 13 on the extension frames 12 on both sides are staggered and tilted, so that the silt can be aggregated toward the center into the sediment discharge valve pipe 43, and then discharged.

[0037] Example 2. On the basis of Example 1, the inner wall of the outer rotating tube 11 is fixedly connected with an adjusting sleeve 21, and the inner wall of the adjusting sleeve 21 is movably fitted with the outer wall of the middle knocking tube 17. A reciprocating rotary slide 22 is provided on the inner wall of the adjusting sleeve 21, and an adjusting slider 23 is fixedly connected to the outer wall of one side of the middle knocking tube 17. The outer wall of the adjusting slider 23 is slidably connected to the inner wall of the reciprocating rotary slide 22. The outer wall of the middle knocking tube 17 is fixedly connected with a pressure plate 24. The outer wall of the middle knocking tube 17 is sleeved with a limiting spring 25. The top outer wall of the limiting spring 25 is fixedly connected to the bottom outer wall of the pressure plate 24. The bottom outer wall of the limiting spring 25 is fixedly connected to the bottom inner wall of the outer rotating tube 11. The inner wall of the working box 10 is fixedly connected to the limiting guide rail 20. The outer wall of one side of the top of the middle knocking tube 17 is fixedly connected to the limiting strip 19. The outer wall of the limiting strip 19 is slidably connected to the inner wall of the limiting guide rail 20.

[0038] In the present invention, the middle-layer knocking tube 17 and the adjusting slider 23 can only slide vertically up and down through the sliding connection between the limiting guide rail 20 and the limiting bar 19, and the rotation of the outer rotating tube 11 will drive the outer mounting sleeve 34 to rotate synchronously, and the active movement of the outer mounting sleeve 34 will drive the adjusting slider 23 to slide in the reciprocating rotary slide 22. The adjusting slider 23 rises from the bottom side of the reciprocating rotary slide 22 to the top side, driving the middle-layer knocking tube 17 to move up, and at the same time stretching the limiting spring 25, and then the position The adjusting slider 23 on the top side quickly falls to the bottom side, and the limit spring 25 that is stretched and deformed will drive the middle-layer knocking tube 17 to rebound quickly. At this time, the ring plate 18 at the bottom of the middle-layer knocking tube 17 will hit the outer wall of the sub-screen plate 42, driving the sub-screen plate 42 to shake greatly, and use the water flow at the bottom of the secondary sedimentation tank 1 to reversely impact the mesh of the sub-screen plate 42. Through this device, when the sediment is aggregated, the sediment can be prevented from completely blocking the mesh, thereby ensuring the normal circulation of the mud and water separation.

[0039] Example 3, on the basis of Example 2, the inner wall of the middle layer percussion tube 17 is sleeved with the inner layer linkage tube 26, and the outer walls of the upper and lower ends of the inner layer linkage tube 26 are provided with connecting sleeves 27, the inner sleeve of the connecting sleeve 27 is fixedly connected to the outer wall of the inner layer linkage tube 26, and the outer sleeve of the connecting sleeve 27 is fixedly connected to the inner wall of the middle layer percussion tube 17, and the bottom outer wall of the inner layer linkage tube 26 is fixedly connected with a protective hose 28, and the bottom outer wall of the protective hose 28 is fixedly connected with a vibrating rod 29, and the vibrating rod 29 is located at the axial center position of the sediment discharge valve tube 43, and the vibrating rod 29 is fixedly connected to the bottom outer wall of the protective hose 28. A connecting shaft 39 is provided on the inner wall, and a connecting sleeve 2 30 is provided on the outer walls of the upper and lower ends of the connecting shaft 39. The inner sleeve of the connecting sleeve 2 30 is fixedly connected to the outer wall of the connecting shaft 39, and the outer sleeve of the connecting sleeve 2 30 is fixedly connected to the inner wall of the vibrating rod 29. A polarization stator 31 is fixedly connected to the outer wall of one side of the connecting shaft 39, and a spring-type connecting hose 32 is fixedly connected to the top outer wall of the connecting shaft 39. The inner wall of the middle-layer percussion tube 17 is fixedly connected to the second operating motor 33, and the axis of the second operating motor 33 is fixedly connected to the top outer wall of the spring-type connecting hose 32.

[0040] In the present invention, the second operating motor 33 uses the spring-type connecting hose 32 to drive the connecting shaft 39 to rotate, and the deflection of the polarization stator 31 will drive the connecting shaft 39 and the vibrating rod 29 to vibrate at high frequency. Through this high-frequency vibration, the sediment aggregated in the sediment discharge valve pipe 43 is vibrated, thereby preventing the sediment from being compacted in the sediment discharge valve pipe 43 and blocking the flow of the pipeline.

[0041] Example 4. On the basis of Example 3, the inner wall of the outer rotating tube 11 is fixedly connected with an outer mounting sleeve 34, and the inner wall of the outer mounting sleeve 34 is fixedly installed with multiple magnetic blocks 1 35. The outer wall of the inner linkage tube 26 is fixedly connected with an inner mounting sleeve 36, and the outer wall of the inner mounting sleeve 36 is fixedly installed with multiple magnetic blocks 2 37. Magnetic block 1 35 is magnetically connected to magnetic block 2 37 via the middle-layer percussion tube 17. The outer wall of one side of the vibrating rod 29 is fixedly connected with a deflection magnetic strip 38. The sub-screen plate 42 is fixedly installed with a mounting plate 40 at the connection with the sediment discharge valve tube 43. The inner wall of the mounting plate 40 is fixedly installed with multiple deflection magnetic blocks 41. The deflection magnetic strip 38 is magnetically connected to the deflection magnetic block 41. The top outer wall of the vibrating rod 29 is fixedly connected with a positioning plate 46. The top outer wall of the positioning plate 46 is movably fitted with the bottom outer wall of the middle-layer percussion tube 17.

[0042] In the present invention, the magnetic block 1 35 will rotate synchronously and slowly with the outer rotating tube 11, and the magnetic connection between the multiple magnetic blocks 1 35 and the magnetic block 2 37 is used to drive the magnetic block 2 37 to rotate synchronously and slowly. The magnetic block 2 37 further drives the vibration rod 29 to rotate through the inner linkage tube 26. At the same time, the deflection magnetic block 41 will generate magnetic attraction with the deflection magnetic strip 38 on the vibration rod 29. The protective hose 28 and the spring-type connecting hose 32 are bent to absorb and knock the vibration rod 29 to the position of the deflection magnetic block 41, and the slight vibration is caused by knocking. The sub-screening plate 42 is prevented from being completely accumulated and blocked on the surface of the sub-screening plate 42, and by setting a plurality of deflection magnetic blocks 41, the vibrating rod 29 can knock the sub-screening plate 42 multiple times when the extension frame 12 runs one circle. At the same time, the contact between the vibrating rod 29 and the sub-screening plate 42 causes the vibration of the polarization stator 31 to be further transmitted to the mounting plate 40, driving the sub-screening plate 42 to perform a small-amplitude high-frequency vibration, thereby preventing the silt from being compacted and blocking the sub-screening plate 42 and affecting the normal circulation of mud and water separation.

[0043] The working principle and use process of the present invention: In the present invention, the first step: sewage is discharged into the first-level sub-screening pool 2 through the first-level pump pipe 4, and a sub-screening frame 8 is installed on the upper layer of the first-level sub-screening pool 2 to screen out large-volume solid pollutants, such as branches, plastics and mud blocks, and then the sewage in the first-level sub-screening pool 2 is synchronously discharged into the secondary sedimentation pool 1 through the secondary pump pipe 5; the second step: fine sediment is deposited through the sub-screening plate 42 in the secondary sedimentation pool 1, and the sediment is gathered to the center position by the operation of the polymer scraper 13, and is discharged to the external sewage pump pool through the sediment discharge valve pipe 43. The water flow after screening out the sediment flows through the sub-screening plate 42 through the dense mesh of the sub-screening plate 42 to the bottom of the secondary sedimentation pool 1, and is discharged into the tertiary spraying pool 3 through the tertiary pump pipe 6; the first step: the sewage in the tertiary spraying pool 3 is sprayed with medicine and precipitated, and discharged through the discharge pump pipe 7 after meeting the discharge standard;In the present invention, the operation of the first operating motor 15 in the working box 10 is utilized to utilize the meshing connection of gear 14 and gear 2 16 to drive the outer rotating tube 11 and the extension frame 12 to rotate with the screen plate 42 as the axis, and the multiple polymer scrapers 13 on the extension frames 12 on both sides are staggered and tilted, so that the silt can be aggregated toward the center into the sediment discharge valve pipe 43 and then discharged. In the present invention, the sliding connection between the limiting guide rail 20 and the limiting bar 19 is utilized so that the middle layer knocking tube 17 and the adjusting slider 23 can only slide vertically up and down, and the rotation of the outer rotating tube 11 will drive the outer mounting sleeve 34 to rotate synchronously, and the active movement of the outer mounting sleeve 34 will drive the adjusting slider 23 in the reciprocating rotary chute 22 The adjusting slider 23 slides and rises from the bottom side of the reciprocating rotary slide 22 to the top side, driving the middle layer knocking tube 17 to move up and stretching the limit spring 25 at the same time. Then the adjusting slider 23 on the top side quickly drops to the bottom side, and the limit spring 25 that is stretched and deformed will drive the middle layer knocking tube 17 to rebound quickly. At this time, the ring plate 18 at the bottom of the middle layer knocking tube 17 will hit the outer wall of the sub-screen plate 42, driving the sub-screen plate 42 to shake greatly, and using the water flow at the bottom of the secondary sedimentation tank 1 to reversely impact the mesh of the sub-screen plate 42. Through this device, when the sediment is aggregated, the sediment can be prevented from completely blocking the mesh, thereby ensuring the normal circulation of the mud and water screening. In the present invention, the second operating motor 33 is used to The spring-type connecting hose 32 drives the connecting shaft 39 to rotate, and the deflection of the polarization stator 31 drives the connecting shaft 39 and the vibrating rod 29 to perform high-frequency vibration. Through this high-frequency vibration, the sediment aggregated in the sediment discharge valve tube 43 is vibrated, thereby preventing the sediment from being compacted in the sediment discharge valve tube 43 and blocking the flow of the pipeline. In the present invention, the magnetic block 1 35 will rotate synchronously and slowly with the outer rotating tube 11, and the magnetic connection between the multiple magnetic blocks 1 35 and the magnetic block 2 37 is utilized to drive the magnetic block 2 37 to rotate synchronously and slowly. The magnetic block 2 37 further drives the vibrating rod 29 to rotate through the inner linkage tube 26. At the same time, the deflection magnetic block 41 will generate a magnetic field with the deflection magnetic strip 38 on the vibrating rod 29. By utilizing the bending of the protective hose 28 and the spring-loaded connecting hose 32, the vibrating rod 29 is attracted and struck against the deflecting magnetic block 41. This strike gently vibrates the sub-screening plate 42, thereby preventing the silt on the sub-screening plate 42 from completely accumulating and blocking the surface of the sub-screening plate 42. Furthermore, by providing multiple deflecting magnetic blocks 41, the vibrating rod 29 can strike the sub-screening plate 42 multiple times during each rotation of the extension frame 12. Simultaneously, the contact between the vibrating rod 29 and the sub-screening plate 42 transmits the vibration of the polarizing stator 31 further into the mounting plate 40, driving the sub-screening plate 42 to perform a small, high-frequency vibration, thereby preventing the silt from compacting and blocking the sub-screening plate 42 and affecting the normal flow of mud and water separation.

[0044] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage rural sewage treatment device, comprising a secondary sedimentation tank (1), wherein a primary screening tank (2) and a tertiary spraying tank (3) are respectively established on both sides of the secondary sedimentation tank (1), characterized in that: The top outer wall of the secondary sedimentation tank (1) is fixedly connected to a beam bridge (9), the top outer wall of the beam bridge (9) is provided with a through hole connected to the inner wall, the inner wall of the through hole is provided with (48), the outer sleeve of the (48) is fixedly connected to the inner wall of the through hole, the inner sleeve of the (48) is fixedly connected to an outer rotating tube (11), the bottom of the outer wall of both sides of the outer rotating tube (11) is fixedly connected to an extension frame (12), the bottom outer wall of the extension frame (12) is fixedly connected to a polymer scraper (13), the bottom inner wall of the primary screening tank (2) is fixedly connected to a plurality of support springs (44), the top outer walls of the plurality of support springs (44) are fixedly connected to the same screening plate (4 2), the sub-screen plate (42) is provided with dense mesh holes connected to each other from top to bottom, the bottom outer wall of the polymer scraper (13) is movably fitted with the top outer wall of the sub-screen plate (42), the inner wall of the outer layer rotating tube (11) is sleeved with a middle layer knocking tube (17), the bottom outer wall of the middle layer knocking tube (17) is fixedly connected with a ring plate (18), the outer wall of the middle layer knocking tube (17) is fixedly connected with a pressure plate (24), the outer wall of the middle layer knocking tube (17) is sleeved with a limiting spring (25), the top outer wall of the limiting spring (25) is fixedly connected to the bottom outer wall of the pressure plate (24), and the bottom outer wall of the limiting spring (25) is fixedly connected to the bottom inner wall of the outer layer rotating tube (11).

2. A multi-stage rural sewage treatment device according to claim 1, characterized in that: A screening frame (8) is fixedly mounted on the inner wall of the first-stage screening pool (2), a first-stage pump pipe (4) is fixedly connected to the first-stage screening pool (2), a second-stage pump pipe (5) is fixedly connected between the first-stage screening pool (2) and the second-stage sedimentation pool (1), a third-stage pump pipe (6) is fixedly connected between the second-stage sedimentation pool (1) and the third-stage spraying pool (3), and a discharge pump pipe (7) is fixedly mounted on the inner wall of the third-stage spraying pool (3).

3. A multi-stage rural sewage treatment device according to claim 1, characterized in that: The top outer wall of the beam bridge (9) is fixedly connected to a working box (10), the inner wall of the working box (10) is fixedly connected to a first operating motor (15), the bottom inner wall of the working box (10) is rotatably connected to a gear one (14), the axis of the first operating motor (15) is fixedly connected to the outer wall of the gear one (14), the top end of the outer rotating tube (11) passes through the bottom outer wall of the working box (10) and is located in the inner cavity of the working box (10), the outer wall of the outer rotating tube (11) is fixedly connected to a gear two (16), and the gear two (16) is fixedly connected to the outer wall of the gear one (14).

4. A multi-stage rural sewage treatment device according to claim 3, characterized in that: The axis of the sub-screen plate (42) is fixedly connected to a sediment discharge valve pipe (43), and the outer wall of one end of the sediment discharge valve pipe (43) away from the sub-screen plate (42) is connected to an external sewage pump pool. The outer wall of the sub-screen plate (42) is fixedly connected to an elastic rubber strip (45), and the outer wall of the elastic rubber strip (45) is fixedly connected to the inner wall of the secondary sedimentation tank (1).

5. A multi-stage rural sewage treatment device according to claim 4, characterized in that: The inner wall of the outer rotating tube (11) is fixedly connected to an adjusting sleeve (21), the inner wall of the adjusting sleeve (21) is movably fitted with the outer wall of the middle knocking tube (17), the inner wall of the adjusting sleeve (21) is provided with a reciprocating rotary slide groove (22), and the outer wall of one side of the middle knocking tube (17) is fixedly connected to an adjusting slider (23), the outer wall of the adjusting slider (23) is slidably connected to the inner wall of the reciprocating rotary slide groove (22).

6. A multi-stage rural sewage treatment device according to claim 3, characterized in that: The inner wall of the working box (10) is fixedly connected to the limiting guide rail (20), the outer wall of the top side of the middle-layer knocking tube (17) is fixedly connected to the limiting strip (19), and the outer wall of the limiting strip (19) is slidably connected to the inner wall of the limiting guide rail (20).

7. A multi-stage rural sewage treatment device according to claim 6, characterized in that: The inner wall of the middle-layer percussion tube (17) is sleeved with an inner-layer linkage tube (26), and the outer walls of the upper and lower ends of the inner-layer linkage tube (26) are both provided with a connecting sleeve (27), the inner sleeve of the connecting sleeve (27) is fixedly connected to the outer wall of the inner-layer linkage tube (26), and the outer sleeve of the connecting sleeve (27) is fixedly connected to the inner wall of the middle-layer percussion tube (17), the bottom outer wall of the inner-layer linkage tube (26) is fixedly connected with a protective hose (28), and the bottom outer wall of the protective hose (28) is fixedly connected with a vibrating rod (29), and the vibrating rod (29) is located at the axial center position of the sediment discharge valve tube (43).

8. A multi-stage rural sewage treatment device according to claim 7, characterized in that: The inner wall of the vibrating rod (29) is provided with a connecting shaft (39), and the outer walls of the upper and lower ends of the connecting shaft (39) are both provided with connecting sleeves 2 (30), the inner sleeve of the connecting sleeve 2 (30) is fixedly connected to the outer wall of the connecting shaft (39), and the outer sleeve of the connecting sleeve 2 (30) is fixedly connected to the inner wall of the vibrating rod (29), and the outer wall of one side of the connecting shaft (39) is fixedly connected to a polarization stator (31), and the top outer wall of the connecting shaft (39) is fixedly connected to a spring-type connecting hose (32), and the inner wall of the middle-layer knocking tube (17) is fixedly connected to a second operating motor (33), and the axis of the second operating motor (33) is fixedly connected to the top outer wall of the spring-type connecting hose (32).

9. A multi-stage rural sewage treatment device according to claim 8, characterized in that: The inner wall of the outer rotating tube (11) is fixedly connected to an outer mounting sleeve (34), and the inner wall of the outer mounting sleeve (34) is fixedly installed with a plurality of magnetic blocks 1 (35). The outer wall of the inner linkage tube (26) is fixedly connected to an inner mounting sleeve (36), and the outer wall of the inner mounting sleeve (36) is fixedly installed with a plurality of magnetic blocks 2 (37). The magnetic block 1 (35) is magnetically connected to the magnetic block 2 (37) via the middle knocking tube (17).

10. The multi-stage rural sewage treatment device according to claim 9, characterized in that: A deflection magnetic strip (38) is fixedly connected to an outer wall of one side of the vibrating rod (29); a mounting plate (40) is fixedly mounted on the sub-screen plate (42) at a connection position with the sediment discharge valve pipe (43); a plurality of deflection magnetic blocks (41) are fixedly mounted on an inner wall of the mounting plate (40); and the deflection magnetic strip (38) is magnetically connected to the deflection magnetic blocks (41).

11. A multi-stage rural sewage treatment device according to claim 10, characterized in that: The top outer wall of the vibrating rod (29) is fixedly connected to a positioning plate (46), and the top outer wall of the positioning plate (46) is movably fitted with the bottom outer wall of the middle-layer knocking tube (17).

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