A tubular aerator for dredging a biochemical pool

Abstract

The application belongs to the technical field of aerators, and particularly relates to a tubular aerator for dredging of a biochemical pool, which comprises a load-bearing main pipe, the inner wall bottom of the load-bearing main pipe is provided with a connecting secondary pipe, the bottom outer wall of the connecting secondary pipe is fixedly connected with a sealed mounting box, the inner wall of the connecting secondary pipe is in communication with the inner wall of the sealed mounting box, the outer wall of the sealed mounting box is provided with a plurality of main diaphragm aeration pipes, and the outer wall of the main diaphragm aeration pipe is fixedly connected with a plurality of rubber scrapers in an array. The plurality of rubber scrapers mounted on the main diaphragm aeration pipe are used to scrape and stir the sludge at the bottom of the pool, so that the sludge and water become in a flowing state, flow through the screen work of the biochemical pool and then be discharged out of the biochemical pool, thereby avoiding the deposition of the sludge at the bottom of the biochemical pool and reducing the work maintenance of the biochemical pool, and the service life of the biochemical pool is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of aerators, and in particular relates to a tubular aerator used for desilting a biochemical pond. Background Art

[0002] A tubular aerator is an aeration device with a tubular structure. It disperses air into tiny bubbles through the micropores on the diaphragm, achieving efficient transfer of oxygen into the water. It is widely used as oxygenation equipment in sewage treatment, water body remediation, aquaculture and other fields. Its core function is to efficiently transfer oxygen from the air to the water through microporous aeration technology to support the biochemical reactions of microorganisms or meet the oxygen needs of aquatic organisms.

[0003] For example, Chinese patent CN110950442B discloses a tubular diaphragm hole membrane aerator, which includes a liner, a cylindrical first connector connected to one end of the liner, a through hole opened in the axial direction of the first connector, a baffle provided in the middle of the through hole, a plurality of vent holes opened on the side of the baffle away from the liner, an internal thread provided at the end of the through hole on the same side as the vent hole, a clamping block for a wrench to be clamped on the first connector, the clamping block having a plurality of slots extending along the axial direction of the first connector, a first positioning ring and a check ring, a cylindrical second connector connected to the end of the liner away from the first connector, a second positioning ring provided on the second connector, an end cover provided with a plurality of drainage holes opened in the axial direction thereof, a tubular diaphragm provided on the outer shell of the liner, the diaphragm having a plurality of aeration holes, and a clamp fixed to the first connector and the second connector at positions corresponding to the first positioning ring and the second positioning ring. The diaphragm has the advantages of good air tightness and the like.

[0004] However, the conventional device still has the following problems when used:

[0005] Since biochemical ponds are usually filled with mud and water, a large amount of silt will be deposited at the bottom of the pond after long-term use. Traditional tubular aerators are fixed at the bottom of the biochemical pond, making it difficult for staff to use tools to clean the silt at the bottom of the pond. Excessive silt can easily affect the effectiveness of the tubular aerator, and thus affect the service life of the biochemical pond. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a tubular aerator for desilting a biochemical pool, which has the advantages of being able to desilt the biochemical pool and ensure the service life of the biochemical pool.

[0007] In order to achieve the above object, the present application provides the following technical scheme: a tubular aerator for dredging a biochemical tank, comprising a load-bearing main pipe, a connecting secondary pipe is arranged at the bottom of the inner wall of the load-bearing main pipe, a sealed mounting box is fixedly connected to the bottom outer wall of the connecting secondary pipe, the inner wall of the connecting secondary pipe is in communication with the inner wall of the sealed mounting box, a plurality of main diaphragm aerator pipes are arranged on the outer wall of the sealed mounting box, and a plurality of rubber scrapers are fixedly connected to the outer wall of the main diaphragm aerator pipes.

[0008] Preferably, a mounting bin two is fixedly connected to the bottom of the outer wall of the load-bearing main pipe, a mounting bin one is fixedly connected to the outer wall of one side of the mounting bin two, a sealed rubber ring is fixedly connected to the connecting position of the mounting bin two and the connecting secondary pipe, a mounting base is fixedly installed at the bottom of the outer wall of one side of the load-bearing main pipe, a bidirectional operation motor is fixedly connected to the outer wall of one side of the mounting base, a connecting shaft rod is fixedly connected to the shaft center of the bidirectional operation motor, a first meshing gear is fixedly connected to the outer wall of one end of the connecting shaft rod away from the bidirectional operation motor, a second meshing gear is fixedly connected to the top outer wall of the connecting secondary pipe, the outer wall of the second meshing gear is meshingly connected with the outer wall of the first meshing gear, and the bidirectional operation motor, the connecting shaft rod, the first meshing gear and the mounting base are all installed in the inner cavity of the mounting bin one, and the second meshing gear is installed in the inner cavity of the mounting bin two.

[0009] Preferably, a connecting bearing is arranged on the bottom inner wall of the load-bearing main pipe, the outer bearing of the connecting bearing is fixedly connected with the bottom inner wall of the load-bearing main pipe, and the inner bearing of the load-bearing main pipe is fixedly connected with the top outer wall of the connecting secondary pipe.

[0010] Preferably, the main diaphragm aerator pipe is made of nitrile rubber, a plurality of dense exhaust holes in communication with the inner wall are arranged on the outer wall of the main diaphragm aerator pipe, the rubber scraper is provided with turbulence grooves in communication with the outer walls of two sides, and the cross section of the turbulence grooves is in the shape of V-shaped two sides with unequal opening lengths.

[0011] Preferably, an inner layer support pipe in communication with the inner wall is arranged on the outer wall of one side of the sealed mounting box, a middle layer limiting pipe is slidably connected to the outer wall of the inner layer support pipe, and the middle layer limiting pipe and the inner layer support pipe are both made of graphene.

[0012] Preferably, an outer layer protection main pipe is sleeved on the outer wall of the middle layer limiting pipe, a plurality of groups of support frames two are fixedly connected to the outer wall of the middle layer limiting pipe, the outer walls of the plurality of groups of support frames two are fixedly connected with the inner wall of the outer layer protection main pipe, a plurality of groups of support frames one are fixedly connected to the outer wall of the outer layer protection main pipe, and the outer walls of the plurality of groups of support frames one are fixedly connected with the inner wall of the main diaphragm aerator pipe.

[0013] Preferably, the outer wall of the inner support tube is provided with a groove, the inner wall of the groove is fixedly installed with a connecting shaft, the outer wall of one end of the connecting shaft is hinged with a slider, the inner wall of the middle limiting tube is provided with a bidirectional reciprocating thread groove, the outer wall of the slider is meshed with the inner wall of the bidirectional reciprocating thread groove, and the slider is made of graphene material.

[0014] Preferably, a pneumatic telescopic pump is fixedly installed on the inner wall of the sealed installation box, an axial pressure tube is sleeved on the inner wall of the inner support tube, the inner wall of one end of the inner support tube is connected to the inner wall of the sealed installation box, the outer wall of one end of the axial pressure tube passes through the inner wall of the inner support tube and is fixedly connected to the air chamber of the pneumatic telescopic pump, an extension rod is fixedly connected to the inner wall of one side of the outer protective main tube, a piston is fixedly installed on the outer wall of the extension rod away from the outer protective main tube, and the outer wall of the piston is movably fitted with the inner wall of the axial pressure tube.

[0015] Preferably, a protective tube is provided on the inner wall of the load-bearing main pipe, a retaining frame is fixedly connected to the outer wall of the protective tube, the outer wall of the retaining frame away from the protective tube is fixedly connected to the inner wall of the load-bearing main pipe, an electrical rotary joint is fixedly connected to the inner wall of the protective tube, and connecting wire 2 and connecting wire 1 are installed at the upper and lower output ports of the electrical rotary joint respectively, and connecting wire 1 is electrically connected to the pneumatic telescopic pump.

[0016] Preferably, a plurality of secondary diaphragm aeration tubes are fixedly mounted on one outer wall of the main diaphragm aeration tube, and an air vent connected to the secondary diaphragm aeration tube is opened on the inner wall of the distance between the outer protective main tube and the middle limiting tube.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention is placed at the bottom of the biochemical pool, and the rubber scraper can fit with the bottom of the biochemical pool. The height of the load-bearing main pipe is higher than the pool bank, and the load-bearing main pipe is fixedly connected to the air compressor on the pool bank. The air compressor in the present invention is a conventional air compressor on the market, and the present invention will not go into details. The air pressure flows along the load-bearing main pipe, the connecting secondary pipe, the sealed installation box, the main diaphragm aeration pipe, and is discharged from the exhaust hole of the main diaphragm aeration pipe to actively react with the sewage in the biochemical pool. When the biochemical pool has been working for a period of time and silt is deposited at the bottom, the bidirectional operation motor is started to drive the first meshing gear to rotate, and the first meshing gear drives the second meshing gear to mesh and rotate, further driving the sealed installation box and multiple main diaphragm aeration pipes to rotate, and the multiple rubber scrapers installed on the main diaphragm aeration pipes are used to react with the sewage in the biochemical pool. The silt at the bottom of the pool is scraped and stirred, making the silt-muddy water flow. As the water in the biochemical pool flows through the sieve, it is discharged out of the biochemical pool, thereby avoiding the deposition of silt at the bottom of the biochemical pool, reducing the work and maintenance of the biochemical pool, and ensuring the service life of the biochemical pool. Furthermore, by providing a V-shaped disturbance groove on the rubber scraper, the main diaphragm aeration pipe can pass through the disturbance groove and be squeezed and impacted when the main diaphragm aeration pipe rotates to desilt, thereby dispersing the small volume of silt. At the same time, some of the bubbles discharged from the main diaphragm aeration pipe will pass through the disturbance groove through the water flow and be squeezed and impacted, further impacting the bubbles into denser bubbles, which can also react actively to the dispersed silt, and the flow of bubbles further impacts the silt to make it more dispersed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the load-bearing main pipe of the present invention.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A.

[0023] Figure 5 It is a schematic diagram of the internal structure of the closed installation box of the present invention.

[0024] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point B.

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the main diaphragm aeration tube of the present invention.

[0026] Figure 8 This is a schematic diagram of the overall structure of the main diaphragm aeration tube of the present invention.

[0027] Figure 9This is a schematic diagram of the structure of the middle-layer limiting tube of the present invention.

[0028] Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point C in the middle.

[0029] Figure 11 This is a schematic diagram of the internal structure of the middle-layer limiting tube of the present invention.

[0030] Figure 12 for Figure 11 Enlarged schematic diagram of the structure at point D in the middle.

[0031] Figure 13 This is a schematic diagram of the half-section structure of the middle-layer limiting tube of the present invention.

[0032] Figure 14 It is a schematic diagram of the vertical cross-section structure of the main diaphragm aeration tube of the present invention.

[0033] In the figure: 1. load-bearing main pipe; 2. connecting secondary pipe; 3. sealed installation box; 4. main diaphragm aeration pipe; 5. rubber scraper; 6. installation chamber 1; 7. installation chamber 2; 8. two-way running motor; 9. connecting shaft; 10. first meshing gear; 11. second meshing gear; 12. sealed rubber ring; 13. outer protective main pipe; 14. support frame 1; 15. support frame 2; 16. middle limit pipe; 17. two-way reciprocating thread groove; 18. inner support pipe; 19. groove; 20. connecting shaft; 21. slider; 22. axial pressure pipe; 23. extension rod; 24. piston; 25. secondary diaphragm aeration pipe; 26. vent; 27. connecting wire 1; 28. installation base; 29. ​​connecting bearing; 30. spoiler groove; 31. protective pipe; 32. pneumatic telescopic pump; 33. retaining frame; 34. electrical rotary joint; 35. connecting wire 2. 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 14The present invention provides a technical solution: a tubular aerator for desilting a biochemical pond, comprising a load-bearing main pipe 1, characterized in that: a connecting secondary pipe 2 is provided at the bottom of the inner wall of the load-bearing main pipe 1, a sealed installation box 3 is fixedly connected to the outer wall of the bottom of the connecting secondary pipe 2, the inner wall of the connecting secondary pipe 2 is communicated with the inner wall of the sealed installation box 3, a plurality of main diaphragm aeration pipes 4 are provided on the outer wall of the sealed installation box 3, a plurality of rubber scrapers 5 are fixedly connected to the outer wall array of the main diaphragm aeration pipe 4, a second installation bin 7 is fixedly connected to the outer wall of the outer wall of the load-bearing main pipe 1 around the bottom, a mounting bin 1 6 is fixedly connected to the outer wall of one side of the mounting bin 7, a sealed rubber ring 12 is fixedly connected to the connection position of the mounting bin 1 7 and the connecting secondary pipe 2, a mounting base 28 is fixedly installed at the bottom of the outer wall of one side of the load-bearing main pipe 1, a bidirectional operation motor 8 is fixedly connected to the outer wall of the one side of the mounting base 28, a connecting shaft 9 is fixedly connected to the axis of the bidirectional operation motor 8, and the connecting shaft 9 is away from the bidirectional operation motor 8. The outer wall of one end of the rotating motor 8 is fixedly connected to the first meshing gear 10, and the top outer wall of the connecting secondary pipe 2 is fixedly connected with the second meshing gear 11. The outer wall of the second meshing gear 11 is meshed with the outer wall of the first meshing gear 10. The bidirectional running motor 8, the connecting shaft 9, the first meshing gear 10 and the mounting base 28 are all installed in the inner cavity of the mounting chamber 1 6, and the second meshing gear 11 is installed in the inner cavity of the mounting chamber 2 7. The bottom inner wall of the load-bearing main pipe 1 is provided with a connecting bearing 29. The outer bearing of the connecting bearing 29 is fixedly connected to the bottom inner wall of the load-bearing main pipe 1, and the inner bearing of the load-bearing main pipe 1 is fixedly connected to the top outer wall of the connecting secondary pipe 2. The main diaphragm aeration pipe 4 is made of nitrile rubber. The outer wall array around the main diaphragm aeration pipe 4 is provided with dense exhaust holes connected to the inner wall. The rubber scraper 5 is provided with a spoiler groove 30 connected to the outer walls on both sides. The cross section of the spoiler groove 30 is V-shaped with unequal lengths of the openings on both sides.

[0036] The present invention is placed at the bottom of the biochemical pool, and the rubber scraper 5 can fit with the bottom of the biochemical pool. The height of the load-bearing main pipe 1 is higher than the pool bank. The load-bearing main pipe 1 is fixedly connected to the air compressor on the pool bank. The air compressor in the present invention is a conventional air compressor on the market, and the present invention will not go into details. The air pressure flows along the load-bearing main pipe 1, the connecting secondary pipe 2, the sealed installation box 3, the main diaphragm aeration pipe 4, and is discharged from the exhaust hole of the main diaphragm aeration pipe 4 to actively react with the sewage in the biochemical pool. When the biochemical pool has been working for a period of time and silt has been deposited at the bottom, the first meshing gear 10 is driven to rotate by starting the bidirectional operation motor 8, and the first meshing gear 10 drives the second meshing gear 11 to mesh and rotate, further driving the sealed installation box 3 and multiple main diaphragm aeration pipes 4 to rotate, and utilizing multiple rubber aeration pipes installed on the main diaphragm aeration pipe 4 to rotate. The rubber scraper 5 scrapes and stirs the silt at the bottom of the pool, making the silt muddy water flow. As the water in the biochemical pool flows through the sieve, it is discharged out of the biochemical pool, thereby avoiding the deposition of silt at the bottom of the biochemical pool, reducing the work and maintenance of the biochemical pool, and ensuring the service life of the biochemical pool. Furthermore, by providing a V-shaped disturbance groove 30 on the rubber scraper 5, when the main diaphragm aeration pipe 4 rotates to desilt, the water flow can pass through the disturbance groove 30 and be squeezed and impacted, thereby dispersing the small volume of silt. At the same time, some bubbles discharged from the main diaphragm aeration pipe 4 will pass through the disturbance groove 30 through the water flow and be squeezed and impacted, further impacting the bubbles into denser bubbles, and at the same time, can react with the dispersed silt, and the flow of bubbles further impacts the silt to make it more dispersed.

[0037] Embodiment 2, on the basis of embodiment 1, an inner support tube 18 communicating with the inner wall is provided on the outer wall of one side of the sealed installation box 3, and a middle limit tube 16 is slidably connected to the outer wall of the inner support tube 18. Both the middle limit tube 16 and the inner support tube 18 are made of graphene material, and the outer wall of the middle limit tube 16 is sleeved with an outer protective main pipe 13. The outer wall of the middle limit tube 16 is fixedly connected to multiple groups of support frames 2 15, and the outer walls of the multiple groups of support frames 2 15 are fixedly connected to the inner wall of the outer protective main pipe 13. The outer wall of the outer protective main pipe 13 is fixedly connected to multiple groups of support frames 14, and the outer wall of the multiple groups of support frames 14 is fixedly connected to the inner wall of the main diaphragm aeration pipe 4. The outer wall of the inner support pipe 18 is provided with a groove 19, and the inner wall of the groove 19 is fixedly installed with a connecting shaft 20. The outer wall of one end of the connecting shaft 20 is hinged with a slider 21. The inner wall of the middle limit pipe 16 is provided with a two-way reciprocating thread groove 17. The outer wall of the slider 21 is engaged with the inner wall of the two-way reciprocating thread groove 17. The slider 21 is made of graphene material. The inner wall of the sealed installation box 3 is fixedly installed with a pneumatic telescopic pump 32, the inner wall of the inner support tube 18 is sleeved with an axial pressure tube 22, the inner wall of one end of the inner support tube 18 is connected to the inner wall of the sealed installation box 3, the outer wall of one end of the axial pressure tube 22 passes through the inner wall of the inner support tube 18 and is fixedly connected to the air chamber of the pneumatic telescopic pump 32, the inner wall of one side of the outer protective main tube 13 is fixedly connected with an extension rod 23, and the outer wall of the extension rod 23 away from the outer protective main tube 13 is fixedly installed with a piston 24, and the piston The outer wall of 24 is movably fitted with the inner wall of the axial pressure tube 22, and the inner wall of the load-bearing main pipe 1 is provided with a protective tube 31. The outer wall of the protective tube 31 is fixedly connected with a retaining frame 33. The outer wall of the retaining frame 33 away from the protective tube 31 is fixedly connected to the inner wall of the load-bearing main pipe 1. The inner wall of the protective tube 31 is fixedly connected with an electrical rotary joint 34. The upper and lower output ports of the electrical rotary joint 34 are respectively installed with connecting wire 2 35 and connecting wire 1 27. Connecting wire 1 27 is electrically connected to the pneumatic telescopic pump 32.

[0038] In the present invention, the air in the axial pressure tube 22 is inflated through the output of the pneumatic telescopic pump 32. Due to the blocking of the piston 24, the air pressure in the axial pressure tube 22 will increase, thereby pushing the piston 24, the extension rod 23 and the middle-layer limit tube 16 to perform lateral displacement. When the middle-layer limit tube 16 is laterally displaced, it will be pressed by the slider 21, and then perform reciprocating spiral rotation along the engagement of the two-way reciprocating thread groove 17. Through this device, the dredging rotation area of ​​the present invention can be improved. Furthermore, when the rubber scraper 5 rotates with the load-bearing main pipe 1 as the axis, it can also rotate with the main diaphragm aeration pipe 4 as the axis, thereby improving the irregular flow of the water flow and improving the dredging efficiency of the present invention. In the present invention, by installing the electrical rotary joint 34, the circuit of the pneumatic telescopic pump 32 will not be disturbed when it rotates following the closed installation box 3, thereby ensuring the stability of the use of the present invention.

[0039] Example 3, based on Example 2, multiple secondary diaphragm aeration tubes 25 are fixedly installed on the outer wall of one side of the main diaphragm aeration tube 4, and the inner wall of the distance between the outer protective main tube 13 and the middle limiting tube 16 is provided with a vent hole 26 connected to the secondary diaphragm aeration tube 25.

[0040] In the present invention, the middle limit tube 16, the inner support tube 18 and the slider 21 are all made of graphite. The graphite shaft has excellent self-lubricating properties and can operate for a long time without lubricating oil, reducing maintenance costs. The graphite shaft has good corrosion resistance to most chemical media and can be well applied to biochemical pools. The self-lubricating properties of graphite allow it to form a protective film between the two sliding surfaces, effectively reducing friction and friction coefficient, and extending service life. When the main diaphragm aeration tube 4 is threadedly rotated, part of the structure of the inner support tube 18 will be in the water flow, and part of the air pressure will be discharged through the secondary diaphragm aeration tube 25. The air pressure is used to perform turbulent impact on the contact part of the inner support tube 18 and the middle limit tube 16, thereby avoiding impurities hanging on the inner support tube 18 and affecting the rotation, thereby ensuring the stability of the present invention.

[0041] The working principle and use process of the present invention are as follows: the present invention is placed at the bottom of the biochemical pool, the rubber scraper 5 can fit with the bottom of the biochemical pool, the height of the load-bearing main pipe 1 is higher than the pool bank, the load-bearing main pipe 1 is fixedly connected to the air compressor on the pool bank, the air compressor in the present invention is a conventional air compressor on the market, and the present invention will not go into details, the air pressure follows the load-bearing main pipe 1, the connecting secondary pipe 2, the sealed installation box 3, the main diaphragm aeration pipe 4, and is discharged from the exhaust hole of the main diaphragm aeration pipe 4, actively reacting to the sewage in the biochemical pool, when the biochemical pool has been working for a period of time and silt has been deposited at the bottom, by starting the two-way operation motor 8 to drive the first meshing gear 10 to rotate, the first meshing gear 10 drives the second meshing gear 11 to mesh and rotate, and further drives the sealed installation box 3 and multiple main diaphragm aeration pipes 4 The silt at the bottom of the pool is rotated and stirred by using multiple rubber scrapers 5 installed on the main diaphragm aeration pipe 4, so that the silt muddy water becomes a flowing state, and is discharged out of the biochemical pool as the water flows through the sieve, thereby avoiding the sedimentation of silt at the bottom of the biochemical pool, reducing the work and maintenance of the biochemical pool, and ensuring the service life of the biochemical pool. Furthermore, by providing a V-shaped disturbing groove 30 on the rubber scraper 5, the main diaphragm aeration pipe 4 can pass through the disturbing groove 30 when it rotates to desilt and be squeezed and impacted, thereby dispersing the small volume of silt. At the same time, some of the bubbles discharged from the main diaphragm aeration pipe 4 will pass through the disturbing groove 30 through the water flow and be squeezed and impacted, further impacting the bubbles into denser bubbles, and at the same time, can do something to the dispersed silt. Active reaction, and the flow of bubbles further impacts the silt and makes it more dispersed. In the present invention, the air is inflated in the axial pressure tube 22 through the output of the air pressure telescopic pump 32. Due to the blocking of the piston 24, the air pressure in the axial pressure tube 22 will increase, thereby pushing the piston 24, the extension rod 23 and the middle-layer limit tube 16 to move laterally. When the middle-layer limit tube 16 moves laterally, it will be pressed by the slider 21, and then rotate back and forth along the engagement of the two-way reciprocating thread groove 17. Through this device, the dredging rotation area of ​​the present invention can be increased. Further, when the rubber scraper 5 rotates with the load-bearing main tube 1 as the axis, it can also rotate with the main diaphragm aeration tube 4 as the axis, thereby improving the irregular flow of the water flow and improving the dredging efficiency of the present invention. In the present invention, by installing an electrical rotary joint 34, the circuit of the pneumatic telescopic pump 32 will not be disturbed when it rotates following the closed installation box 3, thereby ensuring the stability of the use of the present invention. In the present invention, the middle limit tube 16, the inner support tube 18 and the slider 21 are all made of graphite. The graphite shaft has excellent self-lubricating properties and can operate for a long time without lubricating oil, reducing maintenance costs. The graphite shaft has good corrosion resistance to most chemical media and can be well applied to biochemical pools. The self-lubricating properties of graphite allow it to form a protective film between the two sliding surfaces, effectively reducing friction and friction coefficient, and extending service life. When the main diaphragm aeration tube 4 rotates in the thread, part of the structure of the inner support tube 18 will be in the water flow.The secondary membrane aeration pipe 25 releases part of the air pressure, which is used to impact the contact part between the inner support pipe 18 and the middle limit pipe 16, thereby preventing impurities from getting caught on the inner support pipe 18 and affecting the rotation, thus ensuring the stability of the present invention.

[0042] 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 tubular aerator for desilting a biochemical pond, comprising a load-bearing main pipe (1), characterized in that: The bottom of the inner wall of the load-bearing main pipe (1) is provided with a connecting secondary pipe (2), the outer wall of the bottom of the connecting secondary pipe (2) is fixedly connected to a closed installation box (3), the inner wall of the connecting secondary pipe (2) is connected to the inner wall of the closed installation box (3), the outer wall of the closed installation box (3) is provided with a plurality of main diaphragm aeration pipes (4), the outer wall array of the main diaphragm aeration pipes (4) is fixedly connected to a plurality of rubber scrapers (5), the bottom of the outer wall of the load-bearing main pipe (1) is fixedly connected to the second installation chamber (7), the outer wall of one side of the installation chamber (7) is fixedly connected to the first installation chamber (6), the connection position of the second installation chamber (7) and the connecting secondary pipe (2) is fixedly connected with a closed rubber ring (12), the bottom of the outer wall of one side of the load-bearing main pipe (1) is fixedly installed with a mounting base (28), the outer wall of one side of the installation base (28) is fixedly connected to a bidirectional running motor (8), the bidirectional running motor (8) is fixedly connected to the second installation chamber (7), and the bidirectional running motor (8) is fixedly connected to the second installation chamber (7). The axis of the rotating motor (8) is fixedly connected to a connecting shaft (9), and the outer wall of the end of the connecting shaft (9) away from the bidirectional running motor (8) is fixedly connected to a first meshing gear (10). The top outer wall of the connecting secondary pipe (2) is fixedly connected to a second meshing gear (11) around the periphery, and the outer wall of the second meshing gear (11) is meshed with the outer wall of the first meshing gear (10). The bidirectional running motor (8), the connecting shaft (9), the first meshing gear (10) and the mounting base (28) are all installed in the inner cavity of the mounting chamber 1 (6), and the second meshing gear (11) is installed in the inner cavity of the mounting chamber 2 (7). The bottom inner wall of the load-bearing main pipe (1) is provided with a connecting bearing (29), the outer bearing of the connecting bearing (29) is fixedly connected to the bottom inner wall of the load-bearing main pipe (1), and the inner bearing of the load-bearing main pipe (1) is fixedly connected to the top outer wall of the connecting secondary pipe (2).

2. The tubular aerator for desilting a biochemical pond according to claim 1, characterized in that: The main diaphragm aeration tube (4) is made of nitrile rubber. The outer wall of the main diaphragm aeration tube (4) is provided with dense exhaust holes connected to the inner wall. The rubber scraper (5) is provided with a spoiler groove (30) connected to the outer walls on both sides. The cross section of the spoiler groove (30) is V-shaped with unequal lengths of the openings on both sides.

3. The tubular aerator for desilting a biochemical pond according to claim 1, characterized in that: An inner support tube (18) communicating with the inner wall is provided on one side outer wall of the sealed installation box (3); a middle limit tube (16) is slidably connected to the outer wall of the inner support tube (18); and both the middle limit tube (16) and the inner support tube (18) are made of graphene material.

4. The tubular aerator for desilting a biochemical pond according to claim 3, characterized in that: The outer wall of the middle-layer limiting tube (16) is sleeved with an outer-layer protective main tube (13), and the outer wall of the middle-layer limiting tube (16) is fixedly connected to multiple groups of support frames (15), and the outer walls of multiple groups of support frames (15) are fixedly connected to the inner wall of the outer-layer protective main tube (13). The outer wall of the outer-layer protective main tube (13) is fixedly connected to multiple groups of support frames (14), and the outer walls of multiple groups of support frames (14) are fixedly connected to the inner wall of the main diaphragm aeration tube (4).

5. The tubular aerator for desilting a biochemical pond according to claim 4, characterized in that: The outer wall of the inner support tube (18) is provided with a groove (19), the inner wall of the groove (19) is fixedly mounted with a connecting shaft (20), one end of the outer wall of the connecting shaft (20) is hinged with a slider (21), the inner wall of the middle limiting tube (16) is provided with a bidirectional reciprocating thread groove (17), the outer wall of the slider (21) is meshedly connected with the inner wall of the bidirectional reciprocating thread groove (17), and the slider (21) is made of graphene material.

6. The tubular aerator for desilting a biochemical pond according to claim 4, characterized in that: A pneumatic telescopic pump (32) is fixedly installed on the inner wall of the sealed installation box (3), an axial pressure tube (22) is sleeved on the inner wall of the inner support tube (18), the inner wall of one end of the inner support tube (18) is connected to the inner wall of the sealed installation box (3), the outer wall of one end of the axial pressure tube (22) passes through the inner wall of the inner support tube (18) and is fixedly connected to the air chamber of the pneumatic telescopic pump (32), an inner wall of one side of the outer protective main tube (13) is fixedly connected to an extension rod (23), the outer wall of one end of the extension rod (23) away from the outer protective main tube (13) is fixedly installed with a piston (24), and the outer wall of the piston (24) is movably fitted with the inner wall of the axial pressure tube (22).

7. The tubular aerator for desilting a biochemical pond according to claim 6, characterized in that: The inner wall of the load-bearing main pipe (1) is provided with a protective pipe (31), the outer wall of the protective pipe (31) is fixedly connected to a retaining frame (33), the outer wall of the retaining frame (33) away from the protective pipe (31) is fixedly connected to the inner wall of the load-bearing main pipe (1), the inner wall of the protective pipe (31) is fixedly connected to an electrical rotary joint (34), the upper and lower output ports of the electrical rotary joint (34) are respectively installed with a connecting wire 2 (35) and a connecting wire 1 (27), and the connecting wire 1 (27) is electrically connected to the pneumatic telescopic pump (32).

8. The tubular aerator for desilting a biochemical pond according to claim 4, characterized in that: A plurality of secondary diaphragm aeration pipes (25) are fixedly mounted on the outer wall of one side of the main diaphragm aeration pipe (4), and a vent hole (26) communicating with the secondary diaphragm aeration pipe (25) is provided on the inner wall of the distance between the outer protective main pipe (13) and the middle limiting pipe (16).

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