A layered mixing and oxygenating water quality improvement device

Abstract

The present invention provides a layered mixing and oxygenating water quality improvement device, which relates to the technical field of water quality improvement devices and comprises a water-lifting aerator body, an aeration cylinder is installed on the bottom surface of the water-lifting aerator body, and an anchor pier is fixed to the bottom of the aeration cylinder, a float is installed on the top of the water-lifting aerator body, an air supply pipe is fixed to one side of the float, the bottom of the air supply pipe is connected to the inside of the aeration cylinder, expansion pipes are equidistantly arranged on the surface of the air supply pipe, and a horizontal pipe is opened on one side of the top of the expansion pipe of the air supply pipe, an air supply component is arranged on the periphery of the water-lifting aerator body, and the air supply component comprises an air supply ring. Compared with the prior art, through the cooperation of the air supply component, the connecting component and the air supply pipe, the air supply direction of the air supply pipe can be changed according to different depths, and oxygen can be infused into water bodies at different depths, so that the oxygen distribution is more uniform and the efficiency of mixed oxygenation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water quality improvement devices, in particular to a layered mixing and oxygenation water quality improvement device. Background Art

[0002] Due to the low mobility of water in inland lakes and reservoirs, many nutrients such as organic matter, nitrogen, and phosphorus accumulate in the reservoirs and lakes, providing ample nutrition for algae and other phytoplankton. Furthermore, the low mobility of the water allows algae to remain stable in the surface water, where they receive ample sunlight and multiply in large numbers, leading to eutrophication. Due to the deep water depth and low mobility, water stratification is prone to occur. After stratification, the upper and lower water layers are relatively stagnant, lacking exchange and mass transfer. Combined with oxygen consumption by the water and sediments, the bottom water becomes hypoxic. Under reducing conditions, nitrogen, phosphorus, iron, and manganese in the sediments dissolve and release into the water. Sulfate is reduced to sulfide, and organic matter decomposes anaerobically into organic acids, causing secondary pollution of the bottom water and deteriorating the aquatic ecosystem.

[0003] In the existing technology, the oxygenation of water bodies can be improved through in-situ water quality remediation technology. However, in this technology, the direction and position of oxygen delivery are usually relatively fixed, and it is not possible to effectively inject oxygen into water bodies at different depths. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a layered mixing and oxygenating water quality improvement device to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. Through the cooperation of the air supply component, the connecting component and the air supply pipe, the air supply direction of the air supply pipe can be changed according to different depths, and oxygen can be infused into water bodies at different depths, so that the oxygen distribution is more uniform and the efficiency of mixing and oxygenating is improved.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a stratified mixing and oxygenating water quality improvement device, comprising a water-lifting aerator body, an aeration cylinder is installed on the bottom surface of the water-lifting aerator body, and an anchor pier is fixed to the bottom of the aeration cylinder, a float is installed on the top of the water-lifting aerator body, an air supply pipe is fixed on one side of the float, the bottom of the air supply pipe is connected to the inside of the aeration cylinder, expansion pipes are equidistantly arranged on the surface of the air supply pipe, and a horizontal pipe is opened on one side of the top of the expansion pipe of the air supply pipe, an air supply component is arranged on the periphery of the water-lifting aerator body, and the air supply component includes an air supply ring, and air outlets are equidistantly opened at the bottom of the air supply ring. A connecting assembly is provided on the side, and the connecting assembly includes a connecting frame, which is sleeved on the periphery of the air supply pipe, a connecting pipe is fixed to the position of the connecting frame corresponding to the transverse pipe, and an inner pipe is fixed to the inner side of the connecting pipe, a rotating ring is installed on the outer surface of the air supply ring, and the outer rotating ring of the air supply ring is fixedly connected to the connecting frame, the inner pipe is communicated with the inside of the air supply ring, and a gap is provided between the inner pipe and the connecting pipe, an insert pipe is slidably sleeved on the outer surface of the transverse pipe, and the insert pipe is slidably inserted into the gap between the inner pipe and the connecting pipe, a transmission belt is installed on one side of the floating body and the anchor pier, a second motor is fixed to the driving wheel position of the transmission belt corresponding to the floating body, and the output end of the second motor is fixedly connected to the driving wheel of the transmission belt.

[0006] Furthermore, the air supply assembly also includes a shaft ring, a shaft ring is installed on the top of the air supply ring, one side of the shaft ring is fixed to one end of the transmission belt, a convex strip is fixed to the bottom of the shaft ring, and a ring groove is opened on the top of the air supply ring, and the convex strip is slidably engaged in the inside of the ring groove.

[0007] Furthermore, a bottom ring is rotatably mounted on the bottom of the air supply ring, and scrapers are fixed to the bottom ring at equal distances corresponding to the air outlet positions of the air supply ring, and the scrapers slide along the bottom of the air supply ring.

[0008] Furthermore, a first motor is symmetrically fixed on both sides of the shaft ring, and a shaft is fixed to the output end of the first motor. Two first gears are fixedly sleeved on the surface of the shaft, a second inner gear ring is fixed on the inner wall of the bottom ring, and the first gear at the bottom end of the shaft is meshed with the second inner gear ring.

[0009] Furthermore, one side of the first gear at the upper end of the shaft is meshed with a second gear, and the second gear is rotatably mounted on the shaft through a bearing frame. A first inner gear ring is fixed on the inner wall of the air supply ring, and the second gear is fixedly connected to the first inner gear ring.

[0010] Furthermore, the connecting component also includes a through groove, a through groove is opened on the surface of the connecting frame, and the air supply pipe and the expansion pipe slide through the through groove, and the two sides and the outer end of the through groove are slidably inserted with an insertion rod, and a sliding ball is fixed at one end of the insertion rod, and the sliding ball slides along the outer wall of the air supply pipe and the expansion pipe, and the outer end of the insertion rod is sleeved with a second spring, and the other end of the second spring is fixedly connected to the outer wall of the connecting frame.

[0011] Furthermore, a transverse plate is fixed on the top of the intubation tube, and electric push rods are fixedly installed on both sides of the outer end of the connection frame, and the extended ends of the electric push rods are in extrusion contact with the transverse plate of the intubation tube.

[0012] Furthermore, a first spring is fixed to the tail end of the cannula, and the first spring is sleeved on the surface of the transverse tube and fixedly connected to the air supply tube.

[0013] Furthermore, a second sealing plate is fixed inside the insert tube, the second sealing plate has the same inner diameter as the transverse tube, and the inner diameter of the inner tube is larger than that of the transverse tube.

[0014] Furthermore, a first sealing plate is slidably mounted at the tube mouth of the expansion tube via a spring, and the inner diameter of the first sealing plate is the same as that of the air supply tube, and a connecting rope is fixed between the first sealing plate and the second sealing plate.

[0015] Beneficial effects of the present invention:

[0016] 1. In the present invention, under the traction of the connecting rope and the second sealing plate, the first sealing plate moves to the highest point where the expansion tube and the air supply tube are connected, blocking the air supply tube from continuing to supply gas to the expansion tube. In a normal state, the intubation tube is sleeved on the transverse tube, and the second sealing plate blocks the outlet end of the transverse tube, so that oxygen does not flow out of the transverse tube. The first sealing plate is located inside the expansion tube. Because the diameter of the expansion tube is larger than that of the air supply tube, oxygen can flow downward along the air supply tube and the expansion tube, thereby completing the adjustment of the gas delivery path at the corresponding position.

[0017] 2. The present invention maintains sliding contact between the sliding balls and the outer surface of the air supply pipe or expansion pipe through the sliding of three sets of sliding balls and insertion rods, makes adaptive adjustments, and plays a certain role in limiting and guiding. When the inner pipe and the cross pipe correspond in a straight line, the insertion pipe is pushed to move by the electric push rod and inserted into the gap between the connecting pipe and the inner pipe, thereby realizing the connection between the cross pipe and the inner pipe. At this time, oxygen can be directly delivered to the interior of the air supply ring. The expansion pipe can be set at multiple locations on the air supply pipe to facilitate oxygen injection into water bodies at different depths.

[0018] 3. The first motor of the present invention drives the shaft to rotate, and the two first gears are respectively meshed and connected with the second inner gear ring and the second gear, and the second gear is then meshed and connected with the first inner gear ring, so that the air supply ring and the bottom ring rotate at the same time, and the two rotate in opposite directions. The rotation of the air supply ring can make the oxygen delivery more uniform, and the rotation of the bottom ring drives the scraper to move to clean the air outlet to prevent impurities in the water from clogging the air outlet.

[0019] 4. The air supply ring of the present invention is installed on the bottom of the shaft ring through the clamping connection between the ring groove and the convex strip, and is lifted and lowered by the connection between the shaft ring and the transmission belt. The air supply ring is driven by the first motor on the shaft ring to rotate and supply air.

[0020] 5. Compared with the prior art, the present invention can change the air supply direction of the air supply pipe according to different depths through the cooperation of the air supply component, the connecting component and the air supply pipe, and infuse oxygen into water bodies at different depths, making the oxygen distribution more uniform and improving the efficiency of mixed oxygenation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a layered mixing and oxygenating water quality improvement device of the present invention;

[0022] Figure 2 This is a schematic diagram of the installation structure of the air supply component of a layered mixing and oxygenating water quality improvement device of the present invention;

[0023] Figure 3 This is a schematic diagram of the gear connection structure of the air supply assembly of a stratified mixing and oxygenating water quality improvement device of the present invention;

[0024] Figure 4 This is a schematic diagram of the bottom structure of the air supply ring of a layered mixing and oxygenating water quality improvement device of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection between the air supply ring and the shaft ring of a layered mixing and oxygenating water quality improvement device of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the connection components of a layered mixing and oxygenating water quality improvement device of the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of a connection frame of a layered mixing and oxygenating water quality improvement device of the present invention;

[0028] Figure 8 This is a schematic diagram of the connection between the horizontal pipe and the expansion pipe of a layered mixing and oxygenation water quality improvement device of the present invention.

[0029] In the figure: 1. water-lifting aerator body; 11. aeration cylinder; 12. anchor pier; 13. float; 2. air supply pipe; 21. expansion pipe; 22. cross pipe; 23. insert pipe; 24. first spring; 25. first sealing plate; 26. connecting rope; 27. second sealing plate; 3. air supply assembly; 31. shaft collar; 32. air supply ring; 33. bottom ring; 34. first inner gear ring; 35. second inner gear ring; 36. first motor; 37. first gear; 38. shaft; 39. second gear; 310. air outlet; 311. scraper; 312. ring groove; 313. convex strip; 4. connecting assembly; 41. connecting frame; 42. through groove; 43. sliding ball; 44. insert rod; 45. second spring; 46. connecting pipe; 47. inner pipe; 48. electric push rod; 5. transmission belt; 51. second motor. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] See also Figures 1 to 8The present invention provides a technical solution: a stratified mixing oxygenated water quality improvement device, comprising a water-lifting aerator body 1, an aeration cylinder 11 is installed on the bottom surface of the water-lifting aerator body 1, and an anchor pier 12 is fixed to the bottom of the aeration cylinder 11, a float 13 is installed on the top of the water-lifting aerator body 1, an air supply pipe 2 is fixed on one side of the float 13, the bottom of the air supply pipe 2 is connected to the inside of the aeration cylinder 11, expansion pipes 21 are equidistantly arranged on the surface of the air supply pipe 2, and a horizontal pipe 22 is opened on one side of the top of the expansion pipe 21 of the air supply pipe 2, and an air supply group is arranged on the periphery of the water-lifting aerator body 1 Part 3, the air supply component 3 includes an air supply ring 32, and the bottom of the air supply ring 32 is equidistantly provided with an air outlet 310. A connecting component 4 is provided on one side of the air supply ring 32, and the connecting component 4 includes a connecting frame 41. The connecting frame 41 is sleeved on the periphery of the air supply pipe 2, and the connecting frame 41 is fixed with a connecting pipe 46 at the position corresponding to the horizontal pipe 22, and an inner pipe 47 is fixed on the inner side of the connecting pipe 46. A rotating ring is installed on the outer surface of the air supply ring 32, and the outer rotating ring of the air supply ring 32 is fixedly connected to the connecting frame 41. The inner pipe 47 is communicated with the inside of the air supply ring 32, and the inner pipe 47 is connected to the connecting pipe 4 6, a cannula 23 is slidably sleeved on the outer surface of the transverse tube 22, and the cannula 23 is slidably inserted into the gap between the inner tube 47 and the connecting tube 46. A transmission belt 5 is installed on one side of the floating body 13 and the anchor pier 12. A second motor 51 is fixed to the driving wheel position of the transmission belt 5 corresponding to the floating body 13, and the output end of the second motor 51 is fixedly connected to the driving wheel of the transmission belt 5. The technical principle of the water-lifting aerator body 1 of this scheme is the same as that of the existing one. The air is compressed by the air compressor on the shore and then passes into the annular air releaser through the air supply pipe. The compressed air releases tiny bubbles into the aeration chamber from the micropores of the releaser and The lower water body is oxygenated and flows back to the bottom of the reservoir through the return chamber; the oxygenated exhaust gas is separated in the return chamber and enters the air chamber; the gas continues to accumulate in the air chamber, and the water level in the air chamber continues to drop; when the water level drops below the water seal plate, the gas in the air chamber instantly enters the riser and forms a large air bomb. The air bomb in the straight tube pushes the water body to rise faster during the rise, and transports the lower water body to the surface; after the air bomb rushes out of the riser, the water flow pushes it outward along the water surface, forming a water-lifting aeration. The outer water flow flows from top to bottom; the water flow in the aerator flows from bottom to top, inducing the mixing of the upper and lower water bodies, and algae in the surface water body are brought to the lower water body;

[0032] When using the device, first arrange the water-lifting aerator body 1 at the designated position, then install the air supply assembly 3 and the connecting assembly 4 on the periphery of the water-lifting aerator body 1 and connect them to the air supply pipe 2. When stratified oxygenation is required, the transmission belt 5 is turned on by the second motor 51, and the air supply assembly 3 moves in the vertical direction under the movement of the belt and docks with the horizontal pipe 22 on the air supply pipe 2. The gas is delivered from the air supply assembly 3 to inject oxygen into the water bodies at different positions.

[0033] When the cam 31 is in the air, the cam 31 is engaged with the boss 314 and the boss 315 is engaged with the boss 316. When the cam 31 is in the air, the cam 31 is engaged with the boss 317. When the cam 31 is in the air, the cam 31 is engaged with the boss 318. When the cam 31 is engaged with the boss 319, the cam 310 is engaged with the boss 319. When the cam 31 is engaged with the boss 318, the cam 310 is engaged with the boss 318. When the cam 31 is engaged with the boss 318, the cam 310 is engaged with the boss 318.

[0034] In this embodiment, the first motor 36 is symmetrically fixed on both sides of the shaft ring 31, and the output end of the first motor 36 is fixed with a shaft 38. Two first gears 37 are fixedly sleeved on the surface of the shaft 38. A second inner ring 35 is fixed on the inner wall of the bottom ring 33, and the first gear 37 at the bottom end of the shaft 38 is meshed with the second inner ring 35. One side of the first gear 37 at the upper end of the shaft 38 is meshed with a second gear 39, and the second gear 39 is rotatably mounted on the shaft 38 through a bearing frame. A first inner ring 34 is fixed on the inner wall of the air supply ring 32, and the second gear 39 is fixedly connected to the first inner ring gear 34. The first motor 36 is turned on to drive the shaft 38 to rotate. The two first gears 37 are respectively meshed and connected with the second inner ring gear 35 and the second gear 39. The second gear 39 is then meshed and connected with the first inner ring gear 34, so that the air supply ring 32 and the bottom ring 33 rotate at the same time, and the two rotate in opposite directions. The rotation of the air supply ring 32 can make the oxygen delivery more uniform. The rotation of the bottom ring 33 drives the scraper 311 to move to clean the air outlet 310 to prevent impurities in the water from clogging the air outlet 310. The outer surfaces of the first motor 36 and the second motor 51 are both waterproofed.

[0035] In this embodiment, the connecting component 4 also includes a through groove 42, and a through groove 42 is opened on the surface of the connecting frame 41, and the air supply pipe 2 and the expansion pipe 21 slide through the through groove 42, and the two sides and the outer end of the through groove 42 are slidably inserted with an insertion rod 44, and one end of the insertion rod 44 is fixed with a sliding ball 43, and the sliding ball 43 slides along the outer wall of the air supply pipe 2 and the expansion pipe 21, and the outer end of the insertion rod 44 is sleeved with a second spring 45, and the other end of the second spring 45 is fixedly connected to the outer wall of the connecting frame 41, and a horizontal plate is fixed on the top of the insertion pipe 23, and electric push rods 48 are fixedly installed on both sides of the outer end of the connecting frame 41, and the extended end of the electric push rod 48 is in squeeze contact with the horizontal plate of the insertion pipe 23, and the tail end of the insertion pipe 23 is fixed with a first spring 24, and the first spring 24 is sleeved on the surface of the cross tube 22 and fixedly connected to the air supply pipe 2, on the periphery of the air supply ring 32 There is also a rotating ring, which is not numbered in the figure. It is a channel connecting the inner cavity of the air supply ring 32 and the inner tube 47, and can maintain the connection between the inner tube 47 and the inside of the air supply ring 32 when the air supply ring 32 rotates. The connecting frame 41 is sleeved on the periphery of the air supply pipe 2, and the top of the expansion tube 21 is a cone. Through the sliding of three sets of sliding balls 43 and the insertion rod 44, the sliding ball 43 can be kept in sliding contact with the outer surface of the air supply pipe 2 or the expansion tube 21, making adaptive adjustments and playing a certain role in limiting and guiding. When the inner tube 47 corresponds to the cross tube 22 in a straight line, the insertion tube 23 is pushed to move by the electric push rod 48 and inserted into the gap between the connecting tube 46 and the inner tube 47, thereby realizing the connection between the cross tube 22 and the inner tube 47. At this time, oxygen can be directly delivered to the inside of the air supply ring 32, and the expansion tube 21 can be set at multiple locations on the air supply pipe 2 to facilitate oxygen injection into water bodies at different depths.

[0036] In this embodiment, a second sealing plate 27 is fixed inside the insert tube 23. The second sealing plate 27 has the same inner diameter as the cross tube 22, and the inner diameter of the inner tube 47 is larger than the cross tube 22. A first sealing plate 25 is slidably mounted at the mouth of the expansion tube 21 through a spring. The first sealing plate 25 has the same inner diameter as the air supply tube 2. A connecting rope 26 is fixed between the first sealing plate 25 and the second sealing plate 27. The first sealing plate 25 is mounted inside the expansion tube 21 and connected by a spring. The position of the spring is not shown in the figure, that is, a rebound force is given to the first sealing plate 25. Under the traction of the connecting rope 26 and the second sealing plate 27, the first sealing plate 25 moves to the highest point where the expansion tube 21 is connected to the air supply tube 2, blocking the air supply tube 2 from continuing to supply air to the expansion tube 21. In a normal state, the intubation tube 23 is sleeved on the transverse tube 22, and the second sealing plate 27 blocks the outlet end of the transverse tube 22, so that oxygen will not flow out of the transverse tube 22. The first sealing plate 25 is located inside the expansion tube 21. Since the diameter of the expansion tube 21 is larger than that of the air supply tube 2, oxygen can flow downward along the air supply tube 2 and the expansion tube 21, thereby completing the adjustment of the gas delivery path at the corresponding position.

[0037] When using the device, first arrange the water-lifting aerator body 1 at the designated position, then install the air supply assembly 3 and the connecting assembly 4 on the periphery of the water-lifting aerator body 1 and connect them to the air supply pipe 2. When stratified oxygenation is required, the transmission belt 5 is turned on by the second motor 51, and the air supply assembly 3 moves in the vertical direction under the movement of the belt. The first motor 36 is turned on to drive the shaft 38 to rotate, and the two first gears 37 are respectively meshed and connected with the second inner gear ring 35 and the second gear 39. The second gear 39 is then meshed and connected with the first inner gear ring 34, so that the air supply ring 32 and the bottom ring 33 rotate at the same time, and the two rotate in opposite directions. The rotation of the air supply ring 32 can make the oxygen delivery more uniform. The rotation of the bottom ring 33 drives the scraper 311 to move to clean the air outlet 310 to prevent impurities in the water from blocking the air outlet 310. When the inner tube 47 is in a straight line with the horizontal tube 22, the electric push rod 48 is used. The cannula 23 is pushed to move and inserted into the gap between the connecting tube 46 and the inner tube 47, thereby realizing the connection between the transverse tube 22 and the inner tube 47. At this time, oxygen can be directly delivered to the inside of the air supply ring 32. The expansion tube 21 can be set at multiple locations on the air supply pipe 2 to facilitate oxygen injection into water bodies at different depths. Under the traction of the connecting rope 26 and the second sealing plate 27, the first sealing plate 25 moves to the highest point where the expansion tube 21 and the air supply pipe 2 are connected, blocking the air supply pipe 2 from continuing to supply air to the expansion tube 21. In a normal state, the cannula 23 is sleeved on the transverse tube 22, and the second sealing plate 27 blocks the outlet end of the transverse tube 22, so that oxygen will not flow out of the transverse tube 22. The first sealing plate 25 is located inside the expansion tube 21. Because the diameter of the expansion tube 21 is larger than that of the air supply pipe 2, oxygen can go all the way down along the air supply pipe 2 and the expansion tube 21, thereby completing the adjustment of the gas delivery path at the corresponding position.

[0038] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A stratified mixing and oxygenating water quality improvement device, comprising a water-lifting aerator body (1), characterized in that: An aeration cylinder (11) is installed on the bottom surface of the water-lifting aerator body (1), and an anchor pier (12) is fixed to the bottom of the aeration cylinder (11). A float (13) is installed on the top of the water-lifting aerator body (1), and an air supply pipe (2) is fixed on one side of the float (13). The bottom of the air supply pipe (2) is connected to the inside of the aeration cylinder (11), and expansion pipes (21) are equidistantly arranged on the surface of the air supply pipe (2). ) is provided with a transverse pipe (22) on one side of the top of the expansion pipe (21), an air supply assembly (3) is provided on the periphery of the water-lifting aerator body (1), the air supply assembly (3) includes an air supply ring (32), air outlets (310) are equidistantly provided at the bottom of the air supply ring (32), a connecting assembly (4) is provided on one side of the air supply ring (32), the connecting assembly (4) includes a connecting frame (41), and the connecting frame (41) is sleeved on The outer periphery of the air supply pipe (2) is fixed with a connecting pipe (46) at a position corresponding to the transverse pipe (22) of the connecting frame (41), and an inner pipe (47) is fixed on the inner side of the connecting pipe (46). A rotating ring is installed on the outer surface of the air supply ring (32), and the outer rotating ring of the air supply ring (32) is fixedly connected to the connecting frame (41). The inner pipe (47) is communicated with the inside of the air supply ring (32), and a gap is provided between the inner pipe (47) and the connecting pipe (46). A plug (23) is slidably sleeved on the outer surface of the transverse pipe (22), and the plug (23) is slidably inserted into the gap between the inner pipe (47) and the connecting pipe (46). A transmission belt (5) is installed on one side of the floating body (13) and the anchor pier (12). A second motor (51) is fixed on the floating body (13) at a position corresponding to the driving wheel of the transmission belt (5), and the output end of the second motor (51) is fixedly connected to the driving wheel of the transmission belt (5).

2. The stratified mixing and oxygenating water quality improvement device according to claim 1, characterized in that: The air supply assembly (3) further comprises a shaft ring (31), the top of the air supply ring (32) is provided with a shaft ring (31), one side of the shaft ring (31) is fixed to one end of the transmission belt (5), a convex strip (313) is fixed to the bottom of the shaft ring (31), a ring groove (312) is provided at the top of the air supply ring (32), and the convex strip (313) is slidably engaged in the inside of the ring groove (312).

3. The stratified mixing and oxygenating water quality improvement device according to claim 2, characterized in that: A bottom ring (33) is rotatably mounted on the bottom of the air supply ring (32), and a scraper (311) is fixed to the bottom ring (33) at equal distances corresponding to the air outlet (310) of the air supply ring (32), and the scraper (311) slides along the bottom of the air supply ring (32).

4. The stratified mixing and oxygenating water quality improvement device according to claim 3, characterized in that: A first motor (36) is symmetrically fixed on both sides of the shaft ring (31), and a shaft (38) is fixed to the output end of the first motor (36). Two first gears (37) are fixedly sleeved on the surface of the shaft (38). A second inner gear ring (35) is fixed on the inner wall of the bottom ring (33), and the first gear (37) at the bottom end of the shaft (38) is meshed with the second inner gear ring (35).

5. The stratified mixing and oxygenating water quality improvement device according to claim 4, characterized in that: A first gear (37) at the upper end of the shaft (38) is meshedly connected to a second gear (39), and the second gear (39) is rotatably mounted on the shaft (38) via a bearing frame. A first inner gear ring (34) is fixed to the inner wall of the air supply ring (32), and the second gear (39) is fixedly connected to the first inner gear ring (34).

6. The stratified mixing and oxygenating water quality improvement device according to claim 1, characterized in that: The connecting assembly (4) further comprises a through groove (42), a through groove (42) is provided on the surface of the connecting frame (41), and the air supply pipe (2) and the expansion pipe (21) slide through the through groove (42), an insertion rod (44) is slidably inserted on both sides and the outer end of the through groove (42), and a sliding ball (43) is fixed at one end of the insertion rod (44), and the sliding ball (43) slides along the outer wall of the air supply pipe (2) and the expansion pipe (21), and a second spring (45) is sleeved on the outer end of the insertion rod (44), and the other end of the second spring (45) is fixedly connected to the outer wall of the connecting frame (41).

7. The stratified mixing and oxygenating water quality improvement device according to claim 6, characterized in that: A transverse plate is fixed on the top of the insert tube (23), and electric push rods (48) are fixedly installed on both sides of the outer end of the connecting frame (41), and the extended ends of the electric push rods (48) are in extrusion contact with the transverse plate of the insert tube (23).

8. The stratified mixing and oxygenating water quality improvement device according to claim 7, characterized in that: A first spring (24) is fixed to the tail end of the insertion tube (23), and the first spring (24) is sleeved on the surface of the transverse tube (22) and fixedly connected to the air supply tube (2).

9. The stratified mixing and oxygenating water quality improvement device according to claim 8, characterized in that: A second sealing plate (27) is fixed inside the inserting tube (23). The second sealing plate (27) has the same inner diameter as the transverse tube (22), and the inner diameter of the inner tube (47) is larger than that of the transverse tube (22).

10. The stratified mixing and oxygenating water quality improvement device according to claim 9, characterized in that: A first sealing plate (25) is slidably mounted on the opening of the expansion tube (21) via a spring, and the first sealing plate (25) has the same inner diameter as the air supply tube (2), and a connecting rope (26) is fixed between the first sealing plate (25) and the second sealing plate (27).

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