A submersible nano bubble generating device

Abstract

This invention proposes a submersible nanobubble generator, belonging to the technical field of nanobubble generators. It includes a support base, a vertically movable lifting mechanism mounted on top of the support base, a water pump assembly mounted on the lifting mechanism, a filter at the input end of the water pump assembly, and a bubble generator mounted at the output end of the water pump assembly. The water pump assembly includes a motor, with a housing fixed to the working end of the motor. An impeller is disposed inside the housing and fixed to the motor output end. An air inlet pipe for connection to an external air pipe is provided on the side wall of the housing near the output end. A mounting part is provided on the side of the housing away from the input end and is fixedly connected to the motor. The bubble generator includes a column fixed to the output end of the housing. This application enables the bubble generator to stably produce bubbles, solving the problem of unstable operation and uneven bubble generation caused by traditional bubble generators.

Description

Technical Field

[0001] This invention relates to the field of nanobubble generating devices, specifically to a submersible nanobubble generating device. Background Art

[0002] The submersible nanobubble generator is a highly efficient water treatment device. This device connects a pipeline to the output of a water pump, with the nanobubble generator positioned at the end of the pipeline. When the pump starts, water and air are transported through the pipeline to the generator, where they are mixed and broken up by a special structure, generating a large number of extremely small nanobubbles. These bubbles possess characteristics such as a large specific surface area, slow rising velocity, and long residence time, significantly increasing the dissolved oxygen content in the water and enhancing the water body's self-purification capacity. It is widely used in wastewater treatment, aquaculture, and aquatic ecological restoration, contributing to improved water quality and promoting ecological balance.

[0003] Chinese patent document CN217962052U discloses a submersible nanobubble generator. The device includes a housing and nanobubble generating components connected to the housing. The bottom of the housing is equipped with multiple supports of predetermined height for supporting the housing. By providing these supports, the submersible nanobubble generator increases the distance between the bottom of the housing and the submerged position, ensuring the device is at a certain height from the bottom and preventing / reducing direct contact with riverbed sediment, thus maintaining stability. This also alleviates clogging caused by riverbed sediment. Furthermore, by incorporating a two-stage filtration system, large particles from the aquatic environment are prevented from entering the housing and water pump, thereby avoiding clogging of the water pump and related pipelines.

[0004] The submersible nanobubble generator described in the aforementioned patent document involves installing a pipeline at the output end of a water pump and then fixing the nanobubble generator to one end of the pipeline. When the water pump starts, it delivers water and air through the pipeline to the nanobubble generator, where the water and air mix and break up to form tiny bubbles. However, in actual operation, when the water and air enter the nanobubble generator, the water falls due to gravity, while the air rises due to its lower density, resulting in uneven distribution of water and air inside the generator and affecting the uniformity of bubble generation. Therefore, a high-efficiency micro / nanobubble generator is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a submersible nanobubble generator. A driven shaft and a rotating sleeve drive a first propeller and a second propeller to rotate clockwise and counterclockwise, respectively. The high-speed rotation of the first and second propellers creates strong shear forces and turbulence in the fluid, cutting large bubbles into microbubbles. This enables the bubble generator to stably produce bubbles and solves the problem of unstable operation and uneven bubble generation in traditional bubble generators.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a submersible nanobubble generator, comprising a support base, a lifting mechanism that can move longitudinally on the top of the support base, a water pump assembly on the lifting mechanism, a filter at the input end of the water pump assembly, and a bubble generator installed at the output end of the water pump assembly. The water pump assembly includes a motor, a housing is fixed to the working end of the motor, an impeller is disposed inside the housing, and the impeller is fixed to the output end of the motor.

[0007] An air inlet pipe is provided on the side wall of the housing near the output end, which can be connected to an external air pipe;

[0008] A mounting part is provided on the side of the housing away from the input end, and the mounting part is fixedly connected to the motor;

[0009] The bubble generator includes a column fixed to the output end of the housing, and a shearing mechanism for breaking up water flow and air is horizontally arranged inside the column.

[0010] The shearing mechanism includes a driven shaft that is horizontally mounted in the column and can rotate. A fourth bevel gear is fixed at one end of the driven shaft. A rotating sleeve that can rotate around its central axis is mounted on the outside of the driven shaft. A fifth bevel gear is fixed on the outside of the rotating sleeve near the end of the fourth bevel gear.

[0011] The first propeller is fixed to the outside of the rotating sleeve at the end away from the fifth bevel gear;

[0012] The second propeller is fixed at the end of the driven shaft away from the fourth bevel gear;

[0013] The mounting part is provided with a transmission mechanism for driving the shearing mechanism. The transmission mechanism includes a second transmission shaft rotatably mounted on the top of the mounting part. The bottom end of the second transmission shaft can extend into the mounting part. A seventh bevel gear that can mesh with a third bevel gear is fixed at the bottom end of the second transmission shaft.

[0014] The top end of the second drive shaft is fixed with a sixth bevel gear that can mesh with both the fourth and fifth bevel gears simultaneously.

[0015] As a technical solution of the present invention, the bubble generator further includes an adjustment mechanism, which includes a circular adjustment plate fixed to one end of the column away from the shell, and the circular adjustment plate is provided with a first through hole that can penetrate through both sides of it.

[0016] A threaded rod is fixed at the center of the circular adjusting plate on the side away from the column.

[0017] The adjustment mechanism also includes a rotating adjustment plate disposed next to the circular adjustment plate, and the rotating adjustment plate is provided with a second through hole that corresponds to the number and position of the first through hole.

[0018] The center of the rotating adjustment plate is provided with a mounting hole that can be adapted to the threaded rod;

[0019] A nut is provided on the side of the rotating adjustment plate to prevent it from falling off the threaded rod. The nut is installed on the threaded rod.

[0020] As a technical solution of the present invention, a limiting frame for limiting the fourth bevel gear and the rotating sleeve is fixed at the top end of the second transmission shaft near the sixth bevel gear. The top of the limiting frame is fitted outside the fourth bevel gear and the rotating sleeve, and the top of the limiting frame is rotatably connected to the fourth bevel gear and the rotating sleeve.

[0021] As one technical solution of the present invention, the output end of the housing is fixed with a filter for filtering impurities in the water.

[0022] As one technical solution of the present invention, the support base includes a base plate, a fixed seat is provided on the upper end surface of the base plate, and a rotatable worm gear is longitudinally installed on the fixed seat.

[0023] The top of the base plate is horizontally provided with two sets of first drive shafts that can rotate, and worm wheels that mesh with worm gears are fixed on the first drive shafts respectively.

[0024] The two ends of the two sets of first drive shafts are fixed with support frames. The outside of the support frames is provided with intermeshing toothed belts around the central axis of the first drive shafts. The end of the support frame away from the toothed belt is provided with a clearance groove.

[0025] The lifting mechanism includes a top plate, a limit rod is fixed to the lower end face of the top plate, and a roller shaft that can travel along the relief groove is installed at the bottom end of the limit rod.

[0026] The bottom of the top plate is also horizontally provided with a lifting seat for fixing the water pump assembly, and the two sides of the lifting seat are respectively fixed on the limiting rod.

[0027] As one technical solution of the present invention, a first bevel gear is fixed at the top end of the worm gear;

[0028] A rotating shaft is horizontally arranged on one side of the fixed base. One end of the rotating shaft is rotatably mounted on the base plate, and the other end of the rotating shaft is fixed with a second bevel gear that can mesh with the first bevel gear.

[0029] As one technical solution of the present invention, the upper end surface of the base plate is longitudinally fixed with a number of limiting columns corresponding to the limiting rods, and the limiting rods are inserted into the limiting columns and can move along the central axis of the limiting columns.

[0030] As a technical solution of the present invention, the limiting column is provided with a limiting groove that can penetrate through both sides of it;

[0031] The support frame can pass through the limiting groove and move longitudinally within the limiting groove.

[0032] Compared with existing technologies, this submersible nanobubble generator has the following advantages:

[0033] I. This invention drives a first propeller and a second propeller to rotate clockwise and counterclockwise respectively via a driven shaft and a rotating sleeve. The high-speed rotation of the first and second propellers creates strong shearing forces and turbulence in the fluid, cutting large bubbles into smaller ones. This enables the bubble generator to stably produce bubbles, solving the problem of unstable operation and uneven bubble generation in traditional bubble generators.

[0034] II. This invention, by changing the relative positions of the first through hole on the circular adjusting plate and the second through hole on the rotating adjusting plate, enables the edges of the first through hole on the circular adjusting plate and the second through hole on the rotating adjusting plate to break up bubbles in the fluid. This not only achieves the synergistic effect of the first and second through holes to progressively break up bubbles in the fluid, but also allows for the regulation of the flow rate of the bubble generator.

[0035] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0037] Figure 2 This is an assembly drawing of the support base and lifting mechanism in this invention;

[0038] Figure 3 This is a three-dimensional structural diagram of the supporting base in this invention;

[0039] Figure 4 This is a three-dimensional structural diagram of the lifting mechanism in this invention;

[0040] Figure 5 This is a three-dimensional structural diagram of the water pump assembly in this invention;

[0041] Figure 6 This is a cross-sectional view of the water pump assembly in this invention;

[0042] Figure 7 This is a three-dimensional schematic diagram of the bubble generator in this invention;

[0043] Figure 8 This is a cross-sectional view of the bubble generator in this invention;

[0044] Figure 9 This is a three-dimensional structural diagram of the shearing mechanism in this invention;

[0045] Figure 10 This is an exploded view of the adjusting mechanism in this invention;

[0046] Figure 11 yes Figure 3 Enlarged structural diagram at point A in the diagram;

[0047] Figure 12 yes Figure 6 Enlarged structural diagram at point B in the diagram;

[0048] In the picture:

[0049] 1. Support base; 10. Base plate; 11. Limiting column; 12. Limiting groove; 14. First drive shaft; 141. Worm gear; 15. Support frame; 151. Clearance groove; 152. Toothed belt; 16. Fixed seat; 161. Worm; 162. First bevel gear; 17. Rotating shaft; 171. Second bevel gear;

[0050] 2. Lifting mechanism; 20. Top plate; 21. Limiting rod; 22. Roller shaft;

[0051] 3. Lifting base; 4. Water pump assembly; 41. Motor; 42. Housing; 421. Air inlet pipe; 422. Mounting part; 423. Third bevel gear; 424. Impeller;

[0052] 5. Bubble generator; 51. Column; 53. Shearing mechanism; 531. Driven shaft; 532. Fourth bevel gear; 533. Rotating sleeve; 534. Fifth bevel gear; 535. First propeller; 536. Second propeller;

[0053] 54. Adjustment mechanism; 541. Circular adjusting plate; 542. First through hole; 543. Threaded rod; 544. Rotating adjusting plate; 545. Second through hole; 546. Mounting hole; 547. Nut;

[0054] 6. Filter; 7. Transmission mechanism; 71. Second transmission shaft; 72. Sixth bevel gear; 73. Limiting frame; 74. Seventh bevel gear. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0056] Please see Figures 1-12 The present invention provides the following implementation scheme: a submersible nanobubble generator, including a support base 1, a lifting mechanism 2 that can move longitudinally on the top of the support base 1, a water pump assembly 4 that is mounted on the lifting mechanism 2, a filter 6 that is mounted on the input end of the water pump assembly 4, and a bubble generator 5 that is mounted on the output end of the water pump assembly 4. The water pump assembly 4 includes a motor 41, a housing 42 that is fixed to the working end of the motor 41, an impeller 424 that is mounted inside the housing 42, and the impeller 424 that is fixed to the output end of the motor 41.

[0057] An air inlet pipe 421, which can be connected to an external air pipe, is provided on the side wall of the housing 42 near the output end;

[0058] A mounting part 422 is provided on the side of the housing 42 away from the input end, and the mounting part 422 is fixedly connected to the motor 41;

[0059] The bubble generator 5 includes a column 51 fixed to the output end of the housing 42, and a shearing mechanism 53 for breaking up water flow and air is horizontally arranged inside the column 51.

[0060] The shearing mechanism 53 includes a driven shaft 531 that is horizontally mounted inside the column 51 and can rotate. A fourth bevel gear 532 is fixed at one end of the driven shaft 531. A rotating sleeve 533 that can rotate around its central axis is mounted on the outside of the driven shaft 531. A fifth bevel gear 534 is fixed on the outside of the rotating sleeve 533 near the end of the fourth bevel gear 532.

[0061] The first propeller 535 is fixed to the outside of the rotating sleeve 533 at the end away from the fifth bevel gear 534;

[0062] A second propeller 536 is fixed at one end of the driven shaft 531 away from the fourth bevel gear 532;

[0063] The mounting part 422 is provided with a transmission mechanism 7 for driving the shearing mechanism 53. The transmission mechanism 7 includes a second transmission shaft 71 rotatably mounted on the top of the mounting part 422. The bottom end of the second transmission shaft 71 can extend into the mounting part 422. A seventh bevel gear 74 that can mesh with the third bevel gear 423 is fixed at the bottom end of the second transmission shaft 71.

[0064] The top end of the second drive shaft 71 is fixed with a sixth bevel gear 72, which can mesh with both the fourth bevel gear 532 and the fifth bevel gear 534 simultaneously.

[0065] When motor 41 starts, it drives impeller 424 inside housing 42 to rotate at high speed, creating a positive pressure inside housing 42. At this time, water flows into housing 42 through its inlet. Simultaneously, external air enters housing 42 through external air pipe and air inlet pipe 421. The air and water mix as the impeller 424 rotates at high speed and then enter the bubble generator 5 from the outlet of housing 42.

[0066] Simultaneously, the motor 41 drives the third bevel gear 423 at the output end to rotate. At this time, the third bevel gear 423, through its meshing seventh bevel gear 74, drives the second transmission shaft 71 to rotate, which in turn causes the second transmission shaft 71 to simultaneously drive the fourth bevel gear 532 and the fifth bevel gear 534 to rotate clockwise and counterclockwise, respectively, through the sixth bevel gear 72. Simultaneously, the fourth bevel gear 532 and the fifth bevel gear 534 drive the driven shaft 531 and the rotating sleeve 533 to rotate synchronously. This causes the driven shaft 531 and the rotating sleeve 533 to drive the first propeller 535 and the second propeller 536 to rotate clockwise and counterclockwise, respectively. The strong shearing force and turbulence exerted on the fluid by the high-speed rotation of the first propeller 535 and the second propeller 536 cut large bubbles into smaller bubbles, enabling the bubble generator 5 to stably produce bubbles. This solves the problem of unstable operation and uneven bubble generation in traditional bubble generators 5.

[0067] Please refer to this carefully. Figure 8 and Figure 10 The bubble generator 5 also includes an adjustment mechanism 54, which includes a circular adjustment plate 541 fixed to one end of the column 51 away from the housing 42. The circular adjustment plate 541 has a first through hole 542 that can pass through both sides of it.

[0068] A threaded rod 543 is fixed at the center of the side of the circular adjusting plate 541 away from the column 51;

[0069] The adjustment mechanism 54 also includes a rotating adjustment plate 544 disposed next to the circular adjustment plate 541. The rotating adjustment plate 544 is provided with a second through hole 545 that corresponds to the number and position of the first through hole 542.

[0070] The center of the rotating adjustment plate 544 is provided with a mounting hole 546 that can be adapted to the threaded rod 543;

[0071] A nut 547 is provided on the side of the rotating adjustment plate 544 to prevent it from falling off the threaded rod 543. The nut 547 is installed on the threaded rod 543.

[0072] As the fluid flows through the inner cavity of the column 51, it passes sequentially through the circular regulating plate 541 and the rotating regulating plate 544. During this process, the fluid experiences turbulence and shearing. Simultaneously, the edges of the first through-hole 542 on the circular regulating plate 541 and the second through-hole 545 on the rotating regulating plate 544 break up air bubbles in the fluid. The first through-hole 542 and the second through-hole 545 work together to achieve the step-by-step breaking up of air bubbles in the fluid. By changing the relative positions of the first through-hole 542 on the circular regulating plate 541 and the second through-hole 545 on the rotating regulating plate 544, not only can the flow rate be regulated, but the bubble breaking efficiency can also be further improved by optimizing the matching relationship between the first through-hole 542 and the second through-hole 545.

[0073] Please refer to this carefully. Figure 7 , Figure 8 , Figure 9 , Figure 11 and Figure 12 A limiting frame 73 is fixed at the top of the second drive shaft 71 near the sixth bevel gear 72 to limit the fourth bevel gear 532 and the rotating sleeve 533. The top of the limiting frame 73 is fitted outside the fourth bevel gear 532 and the rotating sleeve 533, and the top of the limiting frame 73 is rotatably connected to the fourth bevel gear 532 and the rotating sleeve 533.

[0074] To ensure that the sixth bevel gear 72 can effectively drive the driven shaft 531 and the fifth bevel gear 534 to rotate, a limiting frame 73 is fixedly installed at the top of the transmission mechanism 7 near the bottom of the sixth bevel gear 72. The top of the limiting frame 73 is then fitted onto the driven shaft 531 and the fifth bevel gear 534 respectively. This ensures that the limiting frame 73 keeps the driven shaft 531 and the fifth bevel gear 534 engaged with the sixth bevel gear 72, effectively preventing the driven shaft 531 and the fifth bevel gear 534 from disengaging from the sixth bevel gear 72 and ensuring effective transmission between the driven shaft 531, the fifth bevel gear 534, and the sixth bevel gear 72.

[0075] Please refer to this carefully. Figure 1 and Figure 5 The output end of the housing 42 is fixed with a filter 6 for filtering impurities in the water.

[0076] By fixing the filter 6 to the inlet end of the housing 42, the filter 6 can filter the water flowing into the housing 42, effectively preventing impurities in the water from accumulating inside the housing 42.

[0077] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The support base 1 includes a base plate 10, a fixed seat 16 is provided on the upper end surface of the base plate 10, and a rotatable worm gear 161 is longitudinally mounted on the fixed seat 16.

[0078] The top of the base plate 10 is horizontally provided with two sets of rotatable first drive shafts 14, and worm wheels 141 that mesh with worm gears 161 are fixed on the first drive shafts 14 respectively.

[0079] Two sets of first drive shafts 14 are fixed with support frames 15 at both ends. The support frames 15 are provided with meshing toothed belts 152 around the central axis of the first drive shafts 14. The support frame 15 is provided with a relief groove 151 at the end away from the toothed belts 152.

[0080] The lifting mechanism 2 includes a top plate 20, a limit rod 21 is fixed on the lower end surface of the top plate 20, and a roller 22 capable of moving along the relief groove 151 is installed at the bottom end of the limit rod 21.

[0081] The bottom of the top plate 20 is also horizontally provided with a lifting seat 3 for fixing the water pump assembly 4, and the two sides of the lifting seat 3 are respectively fixed on the limiting rod 21.

[0082] The rotation of the worm gear 161 drives two sets of worm wheels 141, each fixed to the first drive shaft 14, to rotate in opposite directions. One set of worm wheels 141 rotates clockwise, and the other set rotates counterclockwise. This design ensures that the two sets of first drive shafts 14 rotate in opposite directions at the same speed. When the two sets of first drive shafts 14 rotate, they synchronously drive the support frame 15 to rotate. The support frame 15 engages with the roller shaft 22 through its clearance groove 151, thereby driving the limit rod 21 to move upward or downward. The movement of the limit rod 21 further drives the lifting seat 3 to move up and down synchronously. This effectively prevents the lifting seat 3 and the water pump assembly 4 installed on it from sinking into the silt, thus ensuring that the water pump assembly 4 can operate normally. To ensure that the support frames 15 fixed on the two sets of first drive shafts 14 can rotate synchronously, a toothed belt 152 is provided around the central axis of the first drive shaft 14 outside the support frame 15, and the toothed belts 152 of the two sets of support frames 15 mesh with each other. When the two sets of first drive shafts 14 drive the support frame 15 to rotate around its central axis, the meshing transmission of the toothed belt 152 effectively ensures the synchronous rotation of the support frame 15.

[0083] Please refer to this carefully. Figure 2 , Figure 3 , Figure 4 and Figure 11 The top end of the worm gear 161 is fixed with a first bevel gear 162;

[0084] A rotating shaft 17 is horizontally arranged on one side of the fixed base 16. One end of the rotating shaft 17 is rotatably mounted on the base plate 10, and the other end of the rotating shaft 17 is fixed with a second bevel gear 171 that can mesh with the first bevel gear 162.

[0085] To achieve effective rotation of the worm gear 161, a second bevel gear 171 is fixed to the rotating shaft 17. When the rotating shaft 17 is rotated, it drives the second bevel gear 171, which in turn drives the meshing first bevel gear 162 to rotate. This rotation of the first bevel gear 162, in turn, drives the worm gear 161 to rotate, thus ensuring the effective rotation of the worm gear 161.

[0086] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The upper end face of the base plate 10 is longitudinally fixed with a number of limiting columns 11 corresponding to the limiting rods 21. The limiting rods 21 are inserted into the limiting columns 11 and can move along the central axis of the limiting columns 11.

[0087] To ensure the stability of the limiting rod 21, several hollow limiting posts 11 are longitudinally fixed to the upper end face of the base plate 10. The limiting rod 21 is then inserted into the limiting posts 11, allowing the limiting rod 21 to move along the central axis of the limiting posts 11. This effectively prevents the limiting rod 21 from shifting during movement.

[0088] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The limiting column 11 is provided with a limiting groove 12 that can pass through both sides of it;

[0089] The support frame 15 can pass through the limiting groove 12 and move longitudinally within the limiting groove 12.

[0090] To ensure the stability of the support frame 15, limiting grooves 12 are opened on two corresponding sides of the limiting column 11, allowing the support frame 15 to move within the limiting grooves 12. This effectively prevents the support frame 15 from shifting and ensures its stability.

[0091] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A submersible nanobubble generator, comprising a support base (1), a lifting mechanism (2) disposed on the top of the support base (1) and capable of longitudinal movement, a water pump assembly (4) disposed on the lifting mechanism (2), a filter (6) disposed at the input end of the water pump assembly (4), and a bubble generator (5) installed at the output end of the water pump assembly (4), characterized in that, The water pump assembly (4) includes a motor (41), a housing (42) is fixed to the working end of the motor (41), an impeller (424) is provided inside the housing (42), and the impeller (424) is fixed to the output end of the motor (41); An air inlet pipe (421) is provided on the side wall of the housing (42) near the output end, which can be connected to an external air pipe. A mounting part (422) is provided on the side of the housing (42) away from the input end, and the mounting part (422) is fixedly connected to the motor (41); The bubble generator (5) includes a column (51) fixed to the output end of the housing (42), and a shearing mechanism (53) for breaking up water flow and air is horizontally arranged inside the column (51). The shearing mechanism (53) includes a driven shaft (531) that is horizontally mounted inside the column (51) and can rotate. A fourth bevel gear (532) is fixed at one end of the driven shaft (531). A rotating sleeve (533) that can rotate around its central axis is mounted on the outside of the driven shaft (531). A fifth bevel gear (534) is fixed on the outside of the rotating sleeve (533) near the end of the fourth bevel gear (532). The first propeller (535) is fixed to the outside of the rotating sleeve (533) at the end away from the fifth bevel gear (534); The second propeller (536) is fixed at the end of the driven shaft (531) away from the fourth bevel gear (532); The mounting part (422) is provided with a transmission mechanism (7) for driving the shearing mechanism (53) to run. The transmission mechanism (7) includes a second transmission shaft (71) rotatably mounted on the top of the mounting part (422). The bottom end of the second transmission shaft (71) can extend into the mounting part (422). The bottom end of the second transmission shaft (71) is fixed with a seventh bevel gear (74) that can mesh with the third bevel gear (423). The top end of the second drive shaft (71) is fixed with a sixth bevel gear (72) that can mesh with both the fourth bevel gear (532) and the fifth bevel gear (534) at the same time. The bubble generator (5) also includes an adjustment mechanism (54), which includes a circular adjustment plate (541) fixed to one end of the column (51) away from the shell (42). The circular adjustment plate (541) has a first through hole (542) that can pass through both sides of it. A threaded rod (543) is fixed at the center of the side of the circular adjusting plate (541) away from the column (51); The adjustment mechanism (54) also includes a rotating adjustment plate (544) disposed next to the circular adjustment plate (541), and the rotating adjustment plate (544) is provided with a second through hole (545) that corresponds to the number and position of the first through hole (542). The center of the rotating adjustment plate (544) is provided with a mounting hole (546) that can be adapted to the threaded rod (543). A nut (547) is provided on the side of the rotating adjustment plate (544) to prevent it from falling off the threaded rod (543), and the nut (547) is installed on the threaded rod (543).

2. The submersible nanobubble generator according to claim 1, characterized in that, A limiting frame (73) for limiting the fourth bevel gear (532) and the rotating sleeve (533) is fixed at the top of the second drive shaft (71) near the sixth bevel gear (72). The top of the limiting frame (73) is fitted outside the fourth bevel gear (532) and the rotating sleeve (533), and the top of the limiting frame (73) is rotatably connected to the fourth bevel gear (532) and the rotating sleeve (533).

3. The submersible nanobubble generator according to claim 1, characterized in that, The output end of the housing (42) is fixed with a filter (6) for filtering impurities in the water.

4. The submersible nanobubble generator according to claim 1, characterized in that, The support base (1) includes a base plate (10), and a fixed seat (16) is provided on the upper end surface of the base plate (10). A rotatable worm gear (161) is longitudinally installed on the fixed seat (16). The top of the base plate (10) is horizontally provided with two sets of first drive shafts (14) that can rotate. The first drive shafts (14) are fixed with worm wheels (141) that mesh with the worm (161). Two sets of first drive shafts (14) are fixed with support frames (15) at both ends. The support frames (15) are provided with meshing toothed belts (152) around the central axis of the first drive shafts (14). A relief groove (151) is provided at the end of the support frame (15) away from the toothed belts (152). The lifting mechanism (2) includes a top plate (20), a limit rod (21) is fixed on the lower end face of the top plate (20), and a roller (22) capable of moving along the relief groove (151) is installed at the bottom end of the limit rod (21). The bottom of the top plate (20) is also horizontally provided with a lifting seat (3) for fixing the water pump assembly (4), and the two sides of the lifting seat (3) are respectively fixed on the limiting rod (21).

5. The submersible nanobubble generator according to claim 4, characterized in that, The top end of the worm (161) is fixed with a first bevel gear (162). A rotating shaft (17) capable of rotation is horizontally arranged on one side of the fixed base (16). One end of the rotating shaft (17) is rotatably mounted on the base plate (10), and the other end of the rotating shaft (17) is fixed with a second bevel gear (171) capable of meshing with the first bevel gear (162).

6. The submersible nanobubble generator according to claim 4, characterized in that, The upper end face of the base plate (10) is longitudinally fixed with a number of limiting columns (11) corresponding to the limiting rods (21). The limiting rods (21) are inserted into the limiting columns (11) and can move along the central axis of the limiting columns (11).

7. The submersible nanobubble generator according to claim 6, characterized in that, The limiting column (11) is provided with a limiting groove (12) that can pass through both sides of it. The support frame (15) can pass through the limiting groove (12) and move longitudinally within the limiting groove (12).

Images