A kind of liftable microporous aerator

Abstract

The invention relates to the technical field of microporous aerators, and in particular to a liftable microporous aerator, comprising an aeration tank, a lifting structure, an aeration structure, a fixing structure, a rotating structure, a protective structure, a connecting block, an aeration pipe and a hose; the fixing structure is convenient for fixing a threaded column, so as to prevent the aerator from being affected by a large airflow impact and a change in water pressure, thereby preventing the threaded column from loosening; the protective structure is convenient for protecting the aerator, so as to prevent the accumulation of sludge and other debris on the surface of the aerator and causing blockage, thereby improving the service life of the aerator; the lifting structure is convenient for driving the aeration pipe to rise above the water surface, thereby facilitating rapid replacement and maintenance of the aerator; when replacing and repairing the aerator, it is not necessary to drain the water in the aeration tank, thereby improving the efficiency of replacement and maintenance; the rotating structure is convenient for rotating the aeration pipe to a vertical state, and close to one side of the aeration tank, thereby making the maintenance and replacement of the aerator more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of microporous aerators, in particular to a liftable microporous aerator. Background Art

[0002] Disc microporous aerator is a kind of equipment widely used in the field of water treatment. It is mainly used in water treatment and wastewater treatment. It increases the dissolved oxygen in the water by aeration, thereby promoting the biochemical reaction of microorganisms and achieving the purpose of purifying water quality. Disc microporous aerator is widely used in sewage treatment facilities of various sizes.

[0003] However, when the microporous disc aerator needs to be replaced or overhauled, since the aeration pipe is installed at the bottom of the aeration tank and the disc aerator is installed on the aeration pipe, when the aerator needs to be replaced, the water in the aeration tank needs to be drained for repair and replacement, which makes it inconvenient for quick maintenance; and when the disc aerator is in use, due to long-term impact of large airflow, it will become loose under long-term action, and when the water pressure fluctuates greatly, the threaded connection parts will be continuously subjected to tensile and compressive stresses, causing the aerator to loosen, thereby affecting the aeration effect; and when aeration is not performed, mud and some impurities in the water will be deposited on the surface of the aerator, which will cause the aerator to be blocked, affecting the service life of the aerator. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a liftable microporous aerator.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a liftable microporous aerator, comprising an aeration tank, a lifting structure installed in the aeration tank, a connecting block connected to the lifting structure, an aeration pipeline installed on the connecting block, a hose installed on the aeration pipeline, an aeration structure installed on the aeration pipeline, a fixing structure installed in the aeration structure, a protective structure installed in the lifting structure, and a rotating structure installed in the lifting structure;

[0006] The lifting structure comprises a lifting frame slidably connected to the aeration tank and four fixed plates fixedly connected to the lifting frame, four first guide frames are fixedly connected to the aeration tank, and the four fixed plates are slidably connected to the four first guide frames respectively, wherein two of the fixed plates are fixedly connected to sliders at the bottom, and the sliders are slidably connected to the first guide frames, wherein two of the first guide frames are fixedly connected to second guide frames, a screw rod is rotatably connected between one of the first guide frames and one of the second guide frames, and one of the sliders is threadedly connected to the screw rod;

[0007] The aeration structure includes a mounting plate installed on the aeration pipe and a threaded sleeve fixedly connected to the mounting plate, a threaded column is threadedly connected in the threaded sleeve, a support plate is fixedly connected to the threaded column, a bubble diffuser is installed on the support plate, a pressure cover is installed on the support plate, a sealing ring is fixedly connected to the bottom of the support plate, and the sealing ring is in contact with the threaded sleeve.

[0008] Specifically, a first motor is installed on one of the second guide frames, the screw is fixedly connected to the output shaft of the first motor, a guide rod is fixedly connected between the first guide frame and the second guide frame, and the slider is slidably connected to the guide rod.

[0009] Specifically, the fixed structure includes an installation frame fixedly connected to the threaded sleeve and a limit plate slidably connected to the installation frame, the limit plate is slidably connected to the threaded sleeve, a fixed column is fixedly connected to the bottom of the threaded column, a plurality of limit grooves are provided on the fixed column, and the plurality of limit grooves are distributed in a circular array about the center of the fixed column, and the limit plate is engaged with one of the limit grooves.

[0010] Specifically, a sliding rod is fixedly connected to the limiting plate, and the sliding rod is slidably connected to the installation frame. A pressing block is fixedly connected to the sliding rod, and the pressing block is slidably connected to the installation frame. A first spring is fixedly connected between the pressing block and the installation frame.

[0011] Specifically, the protective structure includes a plurality of mounting shafts rotatably connected to the lifting frame and a connecting frame fixedly connected to the mounting shafts, a protective plate is slidably connected in the connecting frame, the cross-section of the protective plate is a trapezoidal structure, an anti-slip ring is fixedly connected to the protective plate, and a second spring is fixedly connected between the anti-slip ring and the connecting frame.

[0012] Specifically, the anti-slip ring is slidably connected to the connecting frame, a guide column is fixedly connected inside the connecting frame, and the anti-slip ring is slidably connected to the guide column.

[0013] Specifically, a first pulley is fixedly connected to the mounting shaft, eight rotating shafts are rotatably connected in the lifting frame, a first pulley is fixedly connected to the rotating shaft, a second pulley is fixedly connected to the rotating shaft, and every six corresponding first pulleys are transmitted through a first belt, and the eight second pulleys are transmitted through a second belt.

[0014] Specifically, a connecting shaft is rotatably connected inside the lifting frame, and the connecting shaft is fixedly connected to one of the rotating shafts.

[0015] Specifically, a third motor is installed on the lifting frame, and the connecting shaft is fixedly connected to the output shaft of the third motor.

[0016] Specifically, the rotating structure includes a fixed shaft fixedly connected to the bottom of the fixed plate and a worm gear fixedly connected to the fixed shaft, the fixed shaft is rotatably connected to the slider, a worm is rotatably connected inside the slider, the worm is meshed with the worm wheel, a second motor is installed on the slider, and the worm is fixedly connected to the output shaft of the second motor.

[0017] The beneficial effects of the present invention are:

[0018] (1) The present invention discloses a liftable microporous aerator, wherein an aeration structure is provided on the aeration pipe, and a fixing structure is provided in the aeration structure. The setting of the fixing structure facilitates fixing of the threaded column, thereby preventing the aerator from being affected by large airflow impact and water pressure changes, thereby preventing the threaded column from loosening.

[0019] (2) The present invention discloses a liftable microporous aerator, wherein a protective structure is provided in the lifting structure. The protection structure is provided to protect the aerator and prevent the accumulation of sludge and other debris on the surface of the aerator, thereby preventing the aerator from clogging due to the accumulation of sludge and other debris. This increases the service life of the aerator.

[0020] (3) The present invention discloses a liftable microporous aerator, a lifting structure in the aeration tank, and a rotating structure in the lifting structure. The setting of the lifting structure facilitates the aeration pipe to rise above the water surface, so as to facilitate the rapid replacement and maintenance of the aerator. When replacing and repairing the aerator, there is no need to drain the water in the aeration tank, thereby improving the efficiency of replacement and maintenance. The setting of the rotating structure enables the aeration pipe to rotate to a vertical state and close to one side of the aeration tank, so that the maintenance and replacement of the aerator is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a liftable microporous aerator provided by the present invention;

[0023] Figure 2 It is a schematic diagram of the connection structure between the fixing plate and the lifting frame of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection structure between the slider and the fixed plate of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection structure between the first motor and the second guide frame of the present invention;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of section A is shown;

[0027] Figure 6It is a schematic diagram of the connection structure between the limiting plate and the installation frame of the present invention;

[0028] Figure 7 It is a schematic diagram of the connection structure between the worm and the slider of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection structure between the worm gear and the fixed shaft of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connection structure between the first pulley and the mounting shaft of the present invention;

[0031] Fig.10 for Fig. 9 An enlarged schematic diagram of the structure of part B is shown;

[0032] Fig.11 It is a schematic diagram of the connection structure between the connection frame and the installation shaft of the present invention;

[0033] Fig.12 for Fig.11 An enlarged schematic diagram of the C-section structure is shown;

[0034] Fig.13 for Fig.11 An enlarged schematic diagram of the D structure is shown.

[0035] In the figure: 1, aeration tank; 2, lifting structure; 201, lifting frame; 202, fixing plate; 203, first guide frame; 204, second guide frame; 205, slider; 206, screw rod; 207, first motor; 208, guide rod; 3, aeration structure; 301, mounting plate; 302, threaded sleeve; 303, threaded column; 304, support plate; 305, bubble diffuser; 306, gland; 307, sealing ring; 4, fixing structure; 401, mounting frame; 402, limit plate; 403, fixing column; 404, limit groove; 405, sliding rod ; 406, pressing block; 407, first spring; 5, rotating structure; 501, fixed shaft; 502, worm gear; 503, worm; 504, second motor; 6, protective structure; 601, mounting shaft; 602, connecting frame; 603, protective plate; 604, anti-slip ring; 605, guide column; 606, second spring; 607, first pulley; 608, rotating shaft; 609, first belt; 610, second pulley; 611, second belt; 612, connecting shaft; 613, third motor; 7, connecting block; 8, aeration pipe; 9, hose. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig.11 , Fig.12 and Fig.13 As shown, a liftable microporous aerator described in the present invention comprises an aeration tank 1, a lifting structure 2 installed in the aeration tank 1, a connecting block 7 connected to the lifting structure 2, an aeration pipe 8 installed on the connecting block 7, a hose 9 installed on the aeration pipe 8, an aeration structure 3 installed on the aeration pipe 8, a fixed structure 4 installed in the aeration structure 3, a protective structure 6 installed in the lifting structure 2, and a rotating structure 5 installed in the lifting structure 2; the lifting structure 2 comprises a lifting frame 201 slidably connected to the aeration tank 1 and four fixed plates 202 fixedly connected to the lifting frame 201, four first guide frames 203 are fixedly connected in the aeration tank 1, and the four fixed plates 202 are respectively slidably connected to the four first guide frames 203, wherein two of the fixed plates 202 are fixedly connected at the bottom There is a slider 205, which is slidably connected to the first guide frame 203, wherein two of the first guide frames 203 are fixedly connected to the second guide frames 204, a screw rod 206 is rotatably connected between one of the first guide frames 203 and one of the second guide frames 204, and one of the sliders 205 is threadedly connected to the screw rod 206; the aeration structure 3 includes a mounting plate 301 installed on the aeration pipe 8 and a threaded sleeve 302 fixedly connected to the mounting plate 301, a threaded column 303 is threadedly connected in the threaded sleeve 302, a support plate 304 is fixedly connected to the threaded column 303, a bubble diffuser 305 is installed on the support plate 304, a pressure cover 306 is installed on the support plate 304, a sealing ring 307 is fixedly connected to the bottom of the support plate 304, and the sealing ring 307 is in conflict with the threaded sleeve 302.

[0038] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, a first motor 207 is installed on one of the second guide frames 204, the screw 206 is fixedly connected to the output shaft of the first motor 207, a guide rod 208 is fixedly connected between the first guide frame 203 and the second guide frame 204, the slider 205 is slidably connected to the guide rod 208, the rotating structure 5 includes a fixed shaft 501 fixedly connected to the bottom of the fixed plate 202 and a worm gear 502 fixedly connected to the fixed shaft 501, the fixed shaft 501 is rotatably connected to the slider 205, a worm 503 is rotatably connected in the slider 205, the worm 503 is meshed with the worm gear 502, a second motor 504 is installed on the slider 205, the worm 503 is fixedly connected to the output shaft of the second motor 504, when the aerator needs to be replaced, by starting the first motor 207, the output shaft of the first motor 207 rotates and drives the screw 206 to rotate, and when the screw 206 rotates, the thread drives the slider 205 to move upward, and the slider 205 is in the first guide frame. When the guide frame 203 and the second guide frame 204 are slidably matched, the movement is more stable through the guide rod 208. The slider 205 drives the lifting frame 201 to move upward through the fixed plate 202. When the fixed plate 202 moves upward, the movement is more stable through the first guide frame 203. The aeration pipe 8 is driven to rise above the water surface through the lifting frame 201, which is convenient for quickly replacing and repairing the aerator. When replacing and repairing the aerator, there is no need to drain the water in the aeration tank 1, which improves the efficiency of replacement and maintenance. When 205 moves to the second guide frame 204, the second motor 504 can be started. When the output shaft of the second motor 504 rotates, the worm 503 is driven to rotate. The worm 503 drives the worm wheel 502 to rotate. The worm wheel 502 drives the fixed shaft 501 to rotate. When the fixed shaft 501 rotates, the fixed plate 202 is driven to rotate. The fixed plate 202 drives the lifting frame 201 to rotate, so that the aeration pipe 8 is rotated to a vertical state and close to one side of the aeration tank 1, making the inspection and replacement of the aerator more convenient.

[0039] Specifically, Figure 6 , Fig.11 , Fig.12 and Fig.13As shown, the fixing structure 4 includes a mounting frame 401 fixedly connected to the threaded sleeve 302 and a limiting plate 402 slidably connected to the mounting frame 401, the limiting plate 402 is slidably connected to the threaded sleeve 302, a fixing column 403 is fixedly connected to the bottom of the threaded column 303, a plurality of limiting grooves 404 are arranged on the fixing column 403, and the plurality of limiting grooves 404 are distributed in a circular array about the center of the fixing column 403, the limiting plate 402 is engaged with one of the limiting grooves 404, The limit plate 402 is fixedly connected with a slide bar 405, and the slide bar 405 is slidably connected with the installation frame 401. The slide bar 405 is fixedly connected with a pressing block 406, and the pressing block 406 is slidably connected with the installation frame 401. A first spring 407 is fixedly connected between the pressing block 406 and the installation frame 401. When the aerator needs to be installed on the aeration pipe 8, the threaded column 303 is first threadedly matched with the threaded sleeve 302, and the threaded column 303 is installed on the threaded sleeve 302. When the screw sleeve 303 moves toward the inside of the screw sleeve 302, the sealing ring 307 is driven to press against the screw sleeve 302, and the pressing block 406 can be pressed while rotating. When the pressing block 406 slides, the first spring 407 contracts, and at the same time, the pressing block 406 drives the slide bar 405 to slide, and the slide bar 405 drives the limit plate 402 to slide. The limit plate 402 will contract to not block the fixed column 403. At the same time, when the screw sleeve 303 is tightened, the fixed column 403 is located in the screw sleeve 302. At this time, the pressing block 406 is released to make the limit plate 402 contract. Under the action of the first spring 407, the plate 402 is engaged with one of the limiting grooves 404 on the fixed column 403. The fixing column 403 is engaged by the limiting plate 402, which facilitates the fixation of the threaded column 303, thereby preventing the aerator from being affected by a large airflow impact and a change in water pressure, causing the threaded column 303 to loosen. During the aeration process, since the hose 9 is connected to the external air source, the airflow will enter the aeration pipe 8 from the hose 9, and then be ejected from the multiple aerators on the aeration pipe 8 for aeration.

[0040] Specifically, Figure 1 , Figure 2 , Fig. 9 , Fig.10 , Fig.11 and Fig.13As shown, the protective structure 6 includes a plurality of mounting shafts 601 rotatably connected to the lifting frame 201 and a connecting frame 602 fixedly connected to the mounting shaft 601, a protective plate 603 is slidably connected in the connecting frame 602, the cross section of the protective plate 603 is a trapezoidal structure, an anti-slip ring 604 is fixedly connected to the protective plate 603, a second spring 606 is fixedly connected between the anti-slip ring 604 and the connecting frame 602, the anti-slip ring 604 is slidably connected to the connecting frame 602, a guide column 605 is fixedly connected in the connecting frame 602, the anti-slip ring 604 is slidably connected to the guide column 605, and the mounting shaft 601 is fixedly connected to The first pulley 607 is rotatably connected to eight rotating shafts 608 in the lifting frame 201, the first pulley 607 is fixedly connected to the rotating shaft 608, and the second pulley 610 is fixedly connected to the rotating shaft 608. The first belt 609 is used to transmit the power to each of the six corresponding first pulleys 607, and the second belt 611 is used to transmit the power to the eight second pulleys 610. The lifting frame 201 is rotatably connected to a connecting shaft 612, and the connecting shaft 612 is fixedly connected to one of the rotating shafts 608. A third motor 613 is installed on the lifting frame 201, and the connecting shaft 612 is fixedly connected to the output shaft of the third motor 613. When aeration is not needed, the third motor 613 is started, and the output shaft of the third motor 613 rotates to drive the connecting shaft 612 to rotate, and the connecting shaft 612 drives one of the rotating shafts 608 to rotate, and one of the rotating shafts 608 drives multiple second pulleys 610 to rotate through the second belt 611, and the second pulley 610 drives multiple rotating shafts 608 to rotate, and the first pulley 607 on the rotating shaft 608 drives multiple first pulleys 607 to rotate through the first belt 609, and when the multiple first pulleys 607 rotate, they drive the installation shaft 601 to rotate, and the installation shaft 601 drives the connecting frame 602 to rotate, when the inclined surface of the protective plate 603 contacts the pressure cover 306 The protective plate 603 will slide upward in the connecting frame 602, and the second spring 606 will contract. The protective plate 603 will drive the anti-slip ring 604 to move upward. The anti-slip ring 604 will slide with the guide column 605 when it moves. The setting of the guide column 605 makes the movement of the anti-slip ring 604 more stable. At the same time, when the protective plate 603 is rotated to the connecting frame 602, due to the action of the second spring 606, the protective plate 603 will always be in conflict with the connecting frame 602 to protect the bubble diffuser 305. The aerator is protected by the protective plate 603 to avoid the accumulation of sludge and other debris on the surface of the aerator to cause blockage, thereby increasing the service life of the aerator.

[0041] When the present invention is in use, when it is necessary to install the aerator on the aeration pipe 8, firstly, the threaded column 303 is threadedly matched with the threaded sleeve 302, and the threaded column 303 is installed on the threaded sleeve 302. When the threaded column 303 moves toward the inside of the threaded sleeve 302, it will drive the sealing ring 307 to press against the threaded sleeve 302, and the pressing block 406 can be pressed while rotating. When the pressing block 406 slides, the first spring 407 contracts, and at the same time, the pressing block 406 drives the sliding rod 405 to slide, and the sliding rod 405 drives the limiting plate 402 to slide, and the limiting plate 402 will shrink to not block the fixing column 403. At the same time, when the threaded column 303 When tightening, the fixing column 403 is located in the threaded sleeve 302. At this time, the pressing block 406 is loosened, so that the limiting plate 402 is engaged with one of the limiting grooves 404 on the fixing column 403 under the action of the first spring 407. The fixing column 403 is engaged with the limiting plate 402, which facilitates the fixing of the threaded column 303, and prevents the aerator from being affected by a large air flow impact and a change in water pressure, causing the threaded column 303 to loosen. During the aeration process, since the hose 9 is connected to the external air source, the air flow will enter the aeration pipe 8 from the hose 9, and then be ejected from the multiple aerators on the aeration pipe 8 for aeration;

[0042] When aeration is not needed, the third motor 613 is started, and the output shaft of the third motor 613 rotates to drive the connecting shaft 612 to rotate, and the connecting shaft 612 drives one of the rotating shafts 608 to rotate, and one of the rotating shafts 608 drives multiple second pulleys 610 to rotate through the second belt 611, and the second pulley 610 drives multiple rotating shafts 608 to rotate, and the first pulley 607 on the rotating shaft 608 drives multiple first pulleys 607 to rotate through the first belt 609, and when the multiple first pulleys 607 rotate, they drive the installation shaft 601 to rotate, and the installation shaft 601 drives the connecting frame 602 to rotate, when the inclined surface of the protective plate 603 conflicts with the pressure cover 306 , the protective plate 603 will slide upward in the connecting frame 602, and at the same time, the second spring 606 will contract, and the protective plate 603 will drive the anti-slip ring 604 to move upward. When the anti-slip ring 604 moves, it will slide with the guide column 605. The setting of the guide column 605 makes the anti-slip ring 604 move more smoothly. At the same time, when the protective plate 603 rotates to the connecting frame 602, due to the action of the second spring 606, the protective plate 603 will always conflict with the connecting frame 602, and the bubble diffuser 305 is protected. The aerator is protected by the protective plate 603 to prevent the accumulation of sludge and other debris on the surface of the aerator to cause blockage, thereby increasing the service life of the aerator;

[0043] When the aerator needs to be replaced, the first motor 207 is started, and the output shaft of the first motor 207 rotates to drive the screw rod 206 to rotate. When the screw rod 206 rotates, the thread drives the slider 205 to move upward. When the first guide frame 203 and the second guide frame 204 slide together, the slider 205 moves more smoothly through the guide rod 208. The slider 205 drives the lifting frame 201 to move upward through the fixing plate 202. When the fixing plate 202 moves upward, it moves more smoothly through the first guide frame 203, and drives the aeration pipe 8 to rise above the water surface through the lifting frame 201, so as to quickly replace and inspect the aerator. When replacing and repairing the aerator, there is no need to drain the water in the aeration tank 1, which improves the efficiency of replacement and maintenance. When the slider 205 moves to the second guide frame 204, the second motor 504 can be started. When the output shaft of the second motor 504 rotates, the worm 503 is driven to rotate. The worm 503 drives the worm wheel 502 to rotate. The worm wheel 502 drives the fixed shaft 501 to rotate. When the fixed shaft 501 rotates, it drives the fixed plate 202 to rotate, so that the fixed plate 202 drives the lifting frame 201 to rotate, so that the aeration pipe 8 is rotated to a vertical state and close to one side of the aeration tank 1, making the maintenance and replacement of the aerator more convenient.

[0044] It will be apparent to those skilled in the art that the 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 features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A liftable microporous aerator, characterized in that: The invention comprises an aeration tank (1), a lifting structure (2) installed in the aeration tank (1), a connecting block (7) connected to the lifting structure (2), an aeration pipe (8) installed on the connecting block (7), a hose (9) installed on the aeration pipe (8), an aeration structure (3) installed on the aeration pipe (8), a fixing structure (4) installed in the aeration structure (3), a protective structure (6) installed in the lifting structure (2), and a rotating structure (5) installed in the lifting structure (2); The lifting structure (2) comprises a lifting frame (201) slidably connected to the aeration tank (1) and four fixed plates (202) fixedly connected to the lifting frame (201); four first guide frames (203) are fixedly connected to the aeration tank (1); the four fixed plates (202) are respectively slidably connected to the four first guide frames (203); two of the fixed plates (202) are fixedly connected to the bottoms of sliders (205); the sliders (205) are slidably connected to the first guide frames (203); two of the first guide frames (203) are fixedly connected to second guide frames (204); a screw rod (206) is rotatably connected between one of the first guide frames (203) and one of the second guide frames (204); and one of the sliders (205) is threadedly connected to the screw rod (206); The aeration structure (3) comprises a mounting plate (301) mounted on the aeration pipe (8) and a threaded sleeve (302) fixedly connected to the mounting plate (301); a threaded column (303) is threadedly connected to the threaded sleeve (302); a support plate (304) is fixedly connected to the threaded column (303); a bubble diffuser (305) is mounted on the support plate (304); a gland (306) is mounted on the support plate (304); a sealing ring (307) is fixedly connected to the bottom of the support plate (304); the sealing ring (307) is in contact with the threaded sleeve (302); The protective structure (6) comprises a plurality of mounting shafts (601) rotatably connected to the lifting frame (201) and a connecting frame (602) fixedly connected to the mounting shafts (601); a protective plate (603) is slidably connected inside the connecting frame (602); the cross section of the protective plate (603) is a trapezoidal structure; an anti-slip ring (604) is fixedly connected to the protective plate (603); a second spring (606) is fixedly connected between the anti-slip ring (604) and the connecting frame (602); the anti-slip ring (604) is slidably connected to the connecting frame (602); a guide column (605) is fixedly connected inside the connecting frame (602); the anti-slip ring (604) is slidably connected to the guide column (605); A first pulley (607) is fixedly connected to the installation shaft (601); eight rotating shafts (608) are rotatably connected in the lifting frame (201); a first pulley (607) is fixedly connected to the rotating shaft (608); a second pulley (610) is fixedly connected to the rotating shaft (608); every six corresponding first pulleys (607) are driven by a first belt (609); and eight second pulleys (610) are driven by a second belt (611); a connecting shaft (612) is rotatably connected in the lifting frame (201); the connecting shaft (612) is fixedly connected to one of the rotating shafts (608); a third motor (613) is installed on the lifting frame (201); the connecting shaft (612) is fixedly connected to an output shaft of the third motor (613); The rotating structure (5) comprises a fixed shaft (501) fixedly connected to the bottom of the fixed plate (202) and a worm wheel (502) fixedly connected to the fixed shaft (501); the fixed shaft (501) is rotatably connected to a slider (205); a worm (503) is rotatably connected inside the slider (205); the worm (503) is meshed with the worm wheel (502); a second motor (504) is mounted on the slider (205); and the worm (503) is fixedly connected to an output shaft of the second motor (504).

2. A liftable microporous aerator according to claim 1, characterized in that: A first motor (207) is mounted on one of the second guide frames (204); the lead screw (206) is fixedly connected to an output shaft of the first motor (207); a guide rod (208) is fixedly connected between the first guide frame (203) and the second guide frame (204); and the slider (205) is slidably connected to the guide rod (208).

3. The liftable microporous aerator according to claim 1, characterized in that: The fixing structure (4) comprises a mounting frame (401) fixedly connected to the threaded sleeve (302) and a limiting plate (402) slidably connected to the mounting frame (401); the limiting plate (402) is slidably connected to the threaded sleeve (302); a fixing column (403) is fixedly connected to the bottom of the threaded column (303); a plurality of limiting grooves (404) are provided on the fixing column (403); the plurality of limiting grooves (404) are distributed in a circular array about the center of the fixing column (403); and the limiting plate (402) is engaged with one of the limiting grooves (404).

4. A liftable microporous aerator according to claim 3, characterized in that: A sliding rod (405) is fixedly connected to the limiting plate (402), and the sliding rod (405) is slidably connected to the mounting frame (401). A pressing block (406) is fixedly connected to the sliding rod (405), and the pressing block (406) is slidably connected to the mounting frame (401). A first spring (407) is fixedly connected between the pressing block (406) and the mounting frame (401).

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