A multi-directional propulsion type submersible mixer with a filtering function

Abstract

The present invention discloses a multi-directional propulsion type submersible mixer with a filtering function, which relates to the technical field of submersible mixers. A multi-directional propulsion type submersible mixer with a filtering function includes a fixed ring, etc.; the fixed ring and the connecting ring are both fixedly connected to the sludge tank, the fixed ring and the connecting ring are both rotatably connected with rotating columns, symmetrically distributed support shells are fixedly connected between the symmetrically distributed rotating columns, the support shell is provided with a T-shaped chute, a T-shaped slider is slidably connected in the T-shaped chute of the support shell, an installation ring is fixedly connected between the symmetrically distributed T-shaped sliders, a cable is arranged on the installation ring through a buckle, the installation ring is fixedly connected with circumferentially distributed arc-shaped support plates, and a double-shaft motor is arranged in the installation ring. By swinging the double-shaft motor, the position of the impeller on the double-shaft motor is changed, so as to push the sewage in the sewage tank in multiple directions and increase the flow rate of the sewage near the submersible mixer of the present invention.

Description

Technical Field

[0001] The present invention relates to the technical field of submersible mixers, and particularly to a multi-directional propulsion type submersible mixer with a filtering function. Background Art

[0002] A submersible mixer, also known as a submersible propeller, is applicable to sewage treatment plants, and is used to propel and mix liquids such as sewage and thin slurry containing suspended solids to enhance the fluidity of the fluid and prevent sludge sedimentation. Generally, the submersible mixer is slid to a certain position in the sewage tank through a slide rail and fixed.

[0003] Currently, the following problems exist when using a submersible mixer:

[0004] First, the submersible mixer is generally fixedly installed at the bottom of the sludge tank, and can only push the sewage in one direction through the impeller, resulting in insufficient flow of the sewage at that place.

[0005] Second, since there is a motor installed inside, a large amount of vibration will be generated when the motor operates, and it is easy to cause looseness at the connection with the track after long-term use, affecting normal use.

[0006] Third, some sewage contains impurities. When the impeller pushes the sewage, if the impurities are not filtered and intercepted, the impurities will contact the impeller along with the flow of the sewage, and some impurities will wind around the impeller, affecting the rotation of the impeller. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a submersible mixer with negative pressure drainage, multi-directional propulsion and a filtering function.

[0008] The technical solution is as follows: A multi-directional propulsion type submersible mixer with a filtering function, including a fixed ring and a connecting ring. Both the fixed ring and the connecting ring are fixedly connected to the sludge tank. Rotating columns are rotatably connected to both the fixed ring and the connecting ring. Symmetrically distributed support shells are fixedly connected between the symmetrically distributed rotating columns. A T-shaped chute is provided on one side of the support shell close to the rotating column. A T-shaped slider is slidably connected in the T-shaped chute of the support shell. The support shell is provided with a limiting notch communicating with the T-shaped chute. An installation ring is fixedly connected between the symmetrically distributed T-shaped sliders. A cable is provided on the installation ring through a buckle. The installation ring is fixedly connected with circumferentially distributed arc-shaped support plates. A double-shaft motor is arranged inside the installation ring. Arc-shaped grooves are circumferentially distributed on the outer side surface of the double-shaft motor. The arc-shaped support plates are in limiting cooperation with the adjacent arc-shaped grooves of the double-shaft motor. An impeller is fixedly connected to the output shaft of the double-shaft motor. A first gear ring is rotatably connected to the rotating column close to the connecting ring. A servo motor is fixedly connected to the sludge tank. A first gear meshing with the first gear ring is fixedly connected to the output shaft of the servo motor. The support shell is provided with a positioning mechanism for limiting adjacent T-shaped sliders. The double-shaft motor is provided with a filtering mechanism for intercepting impurities. The double-shaft motor is driven to swing within a certain range by the installation ring and the arc-shaped support plates, and the impeller of the double-shaft motor pushes the nearby sludge in different directions.

[0009] In a preferred technical solution, the arc-shaped support plate is set as a spring plate for reducing the vibration generated by the double-shaft motor.

[0010] In a preferred technical solution, the arc-shaped support plate is located in the middle of the outer side surface of the double-shaft motor for stabilizing the double-shaft motor.

[0011] In a preferred technical solution, the positioning mechanism includes a threaded rod rotatably connected to the support shell. A handwheel is fixedly connected to the threaded rod. A positioning block that is in threaded cooperation with the threaded rod and is limited and slid on the support shell. The positioning block is slidably connected with a positioning slide plate. A first spring is fixedly connected between the positioning slide plate and the positioning block. Rectangular grooves are equidistantly distributed inside the support shell. A limiting slider is slidably connected in the rectangular groove of the support shell. The side of the limiting slider close to the T-shaped slider is set as an arc surface. The side of the T-shaped slider close to the limiting slider is set as an arc surface. A limiting groove is provided on the side of the T-shaped slider close to the limiting slider. The limiting slider is in limiting cooperation with the limiting groove of the T-shaped slider. A second spring is fixedly connected between the limiting slider and the support shell. The elastic coefficient of the first spring is greater than that of the second spring.

[0012] In a preferred technical solution, the filtering mechanism includes an annular filter net fixedly connected to the double-shaft motor. An interception ring is fixedly connected to the side of the annular filter net away from the double-shaft motor. A circular filter net is fixedly connected to the side of the interception ring away from the annular filter net.

[0013] In a preferred technical solution, the installation ring is fixedly connected with an interception shell sleeved on the outer side of the interception ring through a U-shaped rod. The double-shaft motor is provided with a scraping component for removing impurities on the annular filter net.

[0014] In a preferred technical solution, the scraping assembly includes a second gear, which is fixedly connected to the output shaft on the side of the double-shaft motor away from the impeller. The mounting ring is rotatably connected to a rotating rod through a support block. The rotating rod is fixedly connected to a third gear that meshes with the second gear. One end of the rotating rod away from the third gear is fixedly connected to a fifth gear. The double-shaft motor is rotatably connected to a second gear ring that meshes with the fifth gear. The second gear ring is fixedly connected to scraping plates that are circumferentially and equally spaced. Filter nets are sleeved on the second gear, the third gear, the fifth gear, and the second gear ring.

[0015] In a preferred technical solution, one side of the intercepting housing close to the scraping plate is set as a frustum of a cone for collecting impurities.

[0016] In a preferred technical solution, the scraping plate is set as an arc for scraping impurities on the annular filter net, and the scraping plate gradually widens from the annular filter net to the second gear ring.

[0017] In a preferred technical solution, the double-shaft motor is fixedly connected with symmetrically distributed buoyancy rings for protecting the lower arc-shaped support plate.

[0018] The present invention has the following advantages: By swinging the double-shaft motor to change the position of the impeller on the double-shaft motor, the sewage in the sewage tank is pushed in multiple directions, improving the flow rate of the sewage near this submersible mixer. Impurities are intercepted by the annular filter net to prevent the impurities from entering the annular filter net and contacting and winding around the impeller, resulting in the impeller being unable to work properly. The impurities attached to the annular filter net are thrown out by the scraping plate, and combined with the suction force to the right generated by the gap between the intercepting housing and the intercepting ring, the impurities are guided, reducing the amount of impurities attached to the annular filter net and increasing the water inflow of this submersible mixer. The arc-shaped support plate buffers the vibration generated by the double-shaft motor, preventing the parts on this submersible mixer from loosening due to the vibration of the double-shaft motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of parts such as the mounting ring and the arc-shaped support plate of the present invention.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the positioning mechanism of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of parts such as the T-shaped slider and the limit slider of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of parts such as the positioning slide plate and the limit slider of the present invention.

[0024] Figure 6This is a three-dimensional structural schematic diagram of the scraping mechanism of the present invention.

[0025] Figure 7 This is a three-dimensional structural schematic diagram of the filtering component of the present invention.

[0026] Reference numerals in the drawings: 1 - sludge tank, 2 - fixed ring, 3 - connecting ring, 4 - rotating column, 5 - support housing, 501 - limiting notch, 6 - T-shaped slider, 7 - mounting ring, 8 - arc-shaped support plate, 801 - double-shaft motor, 901 - first gear ring, 902 - servo motor, 903 - first gear, 1001 - threaded rod, 1002 - handwheel, 1003 - positioning block, 1004 - positioning slide plate, 1005 - first spring, 1006 - limiting slider, 1007 - second spring, 1101 - annular filter screen, 1102 - intercepting ring, 1103 - circular filter screen, 1104 - intercepting housing, 1201 - second gear, 1202 - rotating rod, 1203 - third gear, 1204 - fifth gear, 1205 - second gear ring, 1206 - scraper, 13 - buoyancy ring. Detailed implementation manners

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The following sewage tank is only used to illustrate the fields to which the present invention is applied, and is not limited to the following sewage tank. The device can still be used in other applicable fields.

[0028] A multi-directional propulsion type submersible agitator with a filtering function, as Figures 1-5As shown in the figure, it includes a fixed ring 2 and a connecting ring 3. The fixed ring 2 is connected to the bottom of the sludge tank 1 by bolts, and the connecting ring 3 is connected to the left side of the inner wall of the sludge tank 1 by bolts. Both the fixed ring 2 and the connecting ring 3 are rotatably connected with rotating columns 4. Two symmetrically distributed rotating columns 4 are welded with two symmetrically distributed support shells 5 in the front and back. One side of the support shell 5 close to the rotating column 4 is provided with a T-shaped sliding groove. A T-shaped slider 6 is slidably connected in the T-shaped sliding groove of the support shell 5. A limiting notch 501 communicating with the T-shaped sliding groove is arranged on the upper part of the support shell 5. The limiting notch 501 is used for the T-shaped slider 6 to move into the T-shaped sliding groove. An installation ring 7 is welded between two symmetrically distributed T-shaped sliders 6. A cable is arranged on the installation ring 7 through a buckle. The installation ring 7 is connected with four circumferentially distributed arc-shaped support plates 8 by bolts. A double-shaft motor 801 is arranged in the installation ring 7. The arc-shaped support plates 8 are made of spring pieces. When the double-shaft motor 801 works, it generates vibrations. The vibrations are transmitted to the arc-shaped support plates 8, and the arc-shaped support plates 8 are deformed to buffer the vibrations. Four circumferentially distributed arc-shaped grooves are arranged on the outer side of the double-shaft motor 801. The arc-shaped support plates 8 are in limit fit with the adjacent arc-shaped grooves of the double-shaft motor 801. When the double-shaft motor 801 vibrates, the arc-shaped support plates 8 still fit with the arc-shaped grooves of the double-shaft motor 801 to prevent the double-shaft motor 801 from detaching from between the four arc-shaped support plates 8 due to vibration. The arc-shaped support plates 8 are located in the middle of the outer side of the double-shaft motor 801. The double-shaft motor 801 is fixedly connected with symmetrically distributed buoyancy rings 13. The buoyancy rings 13 provide upward buoyancy for the double-shaft motor 801 and its parts thereon, preventing the double-shaft motor 801 from pressing the lower arc-shaped support plate 8 for a long time, resulting in excessive stretching of the lower arc-shaped support plate 8 and losing its elasticity. The right output shaft of the double-shaft motor 801 is fixedly connected with an impeller. The output shaft of the double-shaft motor 801 drives the impeller to rotate. The impeller pushes the sewage near it to accelerate the flow of the nearby sewage. The upper rotating column 4 is rotatably connected with a first gear ring 901. The sludge tank 1 is connected with a servo motor 902 by bolts. The output shaft of the servo motor 902 is fixedly connected with a first gear 903 meshing with the first gear ring 901. The double-shaft motor 801 is driven to swing within a certain range through the installation ring 7 and the arc-shaped support plates 8, assisting the impeller of the double-shaft motor 801 to push the nearby sludge in different directions, increasing the flow rate of the sewage near the double-shaft motor 801 and preventing the sludge in the sewage tank from settling. The support shell 5 is provided with a positioning mechanism for limiting adjacent T-shaped sliders 6, and the double-shaft motor 801 is provided with a filtering mechanism for intercepting impurities.

[0029] As Figure 1 and Figures 3-5As shown in the figure, the positioning mechanism includes a threaded rod 1001. The threaded rod 1001 is rotatably connected to the support housing 5. A handwheel 1002 is welded to the upper end of the threaded rod 1001. The threaded rod 1001 is in threaded cooperation with a positioning block 1003 that is limited and slides on the support housing 5. The positioning block 1003 is arranged in a T shape. Rotating the handwheel 1002 drives the threaded rod 1001 to rotate, and the threaded rod 1001 causes the positioning block 1003 to slide along the support housing 5. A positioning slide plate 1004 is slidably connected to the side of the positioning block 1003 away from the threaded rod 1001. A first spring 1005 is fixedly connected between the positioning slide plate 1004 and the positioning block 1003. Rectangular grooves are arranged at equal intervals up and down inside the support housing 5. A limiting slider 1006 is slidably connected to the rectangular groove of the support housing 5. The side of the limiting slider 1006 close to the T-shaped slider 6 is an arc surface. The side of the T-shaped slider 6 close to the limiting slider 1006 is an arc surface. A limiting groove is arranged on the side of the T-shaped slider 6 close to the limiting slider 1006. The limiting slider 1006 is in limiting cooperation with the limiting groove of the T-shaped slider 6. A second spring 1007 is fixedly connected between the limiting slider 1006 and the support housing 5. The elastic coefficient of the first spring 1005 is greater than that of the second spring 1007. The positioning block 1003 drives the positioning slide plate 1004 and the first spring 1005 to move downward. When the arc surface of the positioning slide plate 1004 contacts the limiting slider 1006, the positioning slide plate 1004 continues to move downward. Since the elastic coefficient of the first spring 1005 is greater than that of the second spring 1007, the positioning slide plate 1004 squeezes the limiting slider 1006 away from the threaded rod 1001. The first spring 1005 is not compressed and the second spring 1007 is compressed.

[0030] As Figure 7 shown in the figure, the filtering mechanism includes an annular filter net 1101. The annular filter net 1101 is fixedly connected to the right side of the double-shaft motor 801. An intercepting ring 1102 is fixedly connected to the right side of the annular filter net 1101. The annular filter net 1101 intercepts impurities entering into the intercepting ring 1102 to prevent the impurities from contacting the impeller. A circular filter net 1103 is fixedly connected to the right side of the intercepting ring 1102. The circular filter net 1103 prevents the impurities on its right side from contacting the impeller.

[0031] As Figure 6 and Figure 7As shown, the lower side of the mounting ring 7 is welded with an intercepting housing 1104 sleeved outside the intercepting ring 1102 through a U-shaped rod. One side of the intercepting housing 1104 close to the scraper 1206 is frustum-shaped. The diameter of the left side of the frustum-shaped intercepting housing 1104 is larger than that of its right side. The left side of the frustum-shaped intercepting housing 1104 is the wide opening and the right side is the narrow opening, which ensures the amount of sewage entering the annular filter net 1101. At the same time, on the right side of the circular filter net 1103, the flow velocity of the sewage transported to the right at the port on the right side of the intercepting housing 1104 is fast, while the flow velocity of the sewage in the gap between the intercepting housing 1104 and the intercepting ring 1102 is slow. The fast flow velocity results in a small pressure at the port on the right side of the intercepting housing 1104, and some impurities attached to the annular filter net 1101 will also be drawn into the gap between the intercepting housing 1104 and the intercepting ring 1102 and transported to the right. The double-shaft motor 801 is provided with a scraping assembly for removing impurities on the annular filter net 1101.

[0032] As Figure 6 and Figure 7 shown, the scraping assembly includes a second gear 1201. The second gear 1201 is fixedly connected to the output shaft on the left side of the double-shaft motor 801. The lower part of the inner side of the mounting ring 7 is rotatably connected with a rotating rod 1202 through a support block. The left end of the rotating rod 1202 is fixedly connected with a third gear 1203 meshing with the second gear 1201. The right end of the rotating rod 1202 is fixedly connected with a fifth gear 1204. The double-shaft motor 801 is rotatably connected with a second toothed ring 1205 meshing with the fifth gear 1204. The second toothed ring 1205 is fixedly connected with scrapers 1206 distributed at equal intervals in the circumferential direction. The second toothed ring 1205 drives the scrapers 1206 to rotate to scrape off some impurities attached to the annular filter net 1101. The scrapers 1206 are set to be arc-shaped. During the rotation of the scrapers 1206, the impurities will slide along the arc-shaped surface of the scrapers 1206, so that the impurities are far away from the annular filter net 1101. The scrapers 1206 gradually become wider from the annular filter net 1101 to the second toothed ring 1205, so that the impurities on the left side of the annular filter net 1101 are thrown out farther, reducing the probability that the impurities on the left side of the annular filter net 1101 are adsorbed again. The impurities guided and thrown out by the scrapers 1206 are combined with the suction force generated on the inner side of the intercepting housing 1104 to the right to guide the impurities. The second gear 1201, the third gear 1203, the fifth gear 1204 and the second toothed ring 1205 are all sleeved with filter nets to prevent impurities from entering the gear meshing part and affecting the transmission of the gears.

[0033] Before using this submersible mixer, the operator first determines the working position of this submersible mixer in the sludge tank 1. Subsequently, the operator adjusts the specific working position of this submersible mixer. The specific operations are as follows: The operator rotates a handwheel 1002. Taking the rear handwheel 1002 as an example, in the initial state, the positioning block 1003 is horizontally aligned with the uppermost limit slider 1006, and the limit sliders 1006 located below the uppermost limit slider 1006 do not protrude from the adjacent rectangular grooves of the support housing 5. The handwheel 1002 drives the threaded rod 1001 to rotate, and the threaded rod 1001 drives the positioning block 1003 to move downward. When the positioning block 1003 is aligned with the second uppermost limit slider 1006, the threaded rod 1001 rotates one circle. During the process of the positioning block 1003 being aligned with the second uppermost limit slider 1006, the positioning block 1003 drives the positioning slide plate 1004 and the first spring 1005 to move downward. When the arc surface of the positioning slide plate 1004 contacts the limit slider 1006, the positioning slide plate 1004 continues to move downward. Since the elastic coefficient of the first spring 1005 is greater than the elastic coefficient of the second spring 1007, the positioning slide plate 1004 presses the limit slider 1006 away from the threaded rod 1001, the first spring 1005 is not compressed, and the second spring 1007 is compressed. When the positioning slide plate 1004 is aligned with the second uppermost limit slider 1006, the limit slider 1006 has protruded from the rectangular groove of the support housing 5. When the threaded rod 1001 continues to rotate, the positioning block 1003 moves downward, the positioning slide plate 1004 gradually releases the limit on the second uppermost limit slider 1006, the second spring 1007 resets, and the second uppermost limit slider 1006 gradually approaches the threaded rod 1001. When the positioning slide plate 1004 no longer contacts the second uppermost limit slider 1006, the second uppermost limit slider 1006 no longer protrudes from the rectangular groove of the support housing 5. Subsequently, the positioning slide plate 1004 continues to move downward to perform the above operations on the adjacent limit slider 1006. When the operator rotates the handwheel 1002 to a certain number of turns, the positioning slide plate 1004 moves to the specified position, and the operator stops rotating the handwheel 1002. The limit slider 1006 adjacent to the positioning slide plate 1004 protrudes from the rectangular groove of the support housing 5, and the rotation of the rear handwheel 1002 is completed. The operator repeats the above steps to rotate the front handwheel 1002 the same number of turns, and the adjustment of the two symmetrically positioned positioning slide plates 1004 is completed.

[0034] After the adjustment of the two positioning slides 1004 is completed, the operator places the mounting ring 7 and the parts thereon into the sludge tank 1 and positions them. The specific operations are as follows: The operator moves the mounting ring 7 and the parts thereon to the right side above the support housing 5. The operator moves the mounting ring 7 and the two T-shaped sliders 6, aligns the two T-shaped sliders 6 with the adjacent limit notches 501 in the horizontal direction, and then moves the mounting ring 7 and the two T-shaped sliders 6 to the left. The T-shaped sliders 6 enter the T-shaped chute of the support housing 5 through the limit notches 501. Subsequently, the operator fixes the buckle on the upper side of the mounting ring 7 to the buckle of the cable. After the fixing is completed, the operator releases the mounting ring 7. As Figure 1 shown, the mounting ring 7 and the parts thereon are suspended by the cable. Subsequently, the operator slowly performs the operation of releasing the rope, and the mounting ring 7 and the parts thereon gradually move downward. When the T-shaped slider 6 contacts the limit slider 1006 protruding from the rectangular groove of the support housing 5, the T-shaped slider 6 continues to move downward. The lower side of the arc surface of the T-shaped slider 6 presses the limit slider 1006. After being pressed, the limit slider 1006 gradually approaches the threaded rod 1001, and the second spring 1007 gradually returns to its original position. The limit slider 1006 drives the positioning slide 1004 to approach the threaded rod 1001, and the first spring 1005 is compressed. When the arc surface of the limit slider 1006 enters the rectangular groove of the support housing 5, the second spring 1007 completes its reset, and the first spring 1005 is in a compressed state. When the limit groove of the T-shaped slider 6 is aligned with the limit slider 1006, the limit of the limit slider 1006 is released, and the first spring 1005 resets. The first spring 1005 drives the positioning slide 1004 away from the threaded rod 1001. The positioning slide 1004 drives the limit slider 1006 away from the threaded rod 1001, and the second spring 1007 is compressed. The side of the limit slider 1006 away from the threaded rod 1001 is inserted into the limit groove of the T-shaped slider 6, and the T-shaped slider 6 is limited by the limit slider 1006. The mounting ring 7 and the parts thereon are limited, and the positioning of this submersible mixer is completed.

[0035] After the positioning of this submersible mixer is completed, the operator powers on the double-shaft motor 801. The output shaft of the double-shaft motor 801 drives the impeller to rotate and agitate the sludge in the sludge tank 1. The specific operations are as follows: As Figure 7 shown, the rotation of the impeller generates a rightward thrust. The sludge and water in the sludge tank 1 enter the interception ring 1102 through the annular filter screen 1101 and are conveyed to the right through the circular filter screen 1103. When the sludge and water pass through the annular filter screen 1101, the sewage will carry some impurities close to the annular filter screen 1101 and be intercepted by the annular filter screen 1101, preventing the impurities from entering the annular filter screen 1101 and contacting and winding around the impeller, resulting in abnormal operation of the impeller.

[0036] However, the impurities attached to the annular filter screen 1101 will block the mesh holes of the annular filter screen 1101, thereby affecting the water intake of this submersible mixer and reducing the working efficiency of this submersible mixer. Therefore, it is necessary to clean the impurities attached to the annular filter screen 1101. The specific operation is as follows: During the process of sewage being transported from the circular filter screen 1103 to the right, at this time, the flow velocity of the sewage transported to the right at the right port of the interception housing 1104 is fast, and the flow velocity of the sewage in the gap between the interception housing 1104 and the interception ring 1102 is slow. The fast flow velocity results in a small pressure at the right port of the interception housing 1104. Therefore, the pressure at the right port of the interception housing 1104 decreases, and the sewage in the gap between the interception housing 1104 and the interception ring 1102 is transported to the right. The left side of the gap between the interception housing 1104 and the interception ring 1102 transports part of the sewage and impurities to the right. At this time, a continuous suction force to the right will be generated in the gap between the interception housing 1104 and the interception ring 1102, and some of the impurities attached to the annular filter screen 1101 will also be drawn into the gap between the interception housing 1104 and the interception ring 1102 and transported to the right, reducing the amount of impurities attached to the annular filter screen 1101. When the impurities move to the right port of the interception housing 1104, the impurities are impacted by the sewage discharged from the interception ring 1102 and are transported to the right away from this submersible mixer, avoiding the retention of impurities near this submersible mixer and preventing the impurities from attaching to the annular filter screen 1101 again.

[0037] During the rotation of the impeller, the output shaft of the dual-axis motor 801 also drives the second gear 1201 to rotate. The second gear 1201 drives the second toothed ring 1205 to rotate through the third gear 1203, the rotating rod 1202 and the fifth gear 1204. Since filter meshes are sleeved on both the second gear 1201 and the third gear 1203 as well as the fifth gear 1204 and the second toothed ring 1205, impurities are prevented from entering the gear meshing positions and affecting the gear transmission. The second toothed ring 1205 drives the circumferentially distributed scraping plates 1206 to rotate. The rotation of the scraping plates 1206 scrapes off the impurities adhering to the upper part of the annular filter mesh 1101. Since the impeller continuously generates a suction force, a suction force is generated on the impurities on the annular filter mesh 1101. Therefore, some of the scraped-off impurities cannot enter the gap between the intercepting housing 1104 and the intercepting ring 1102. Since the scraping plates 1206 are arranged in an arc shape, during the rotation of the scraping plates 1206, the impurities will slide along the arc surface of the scraping plates 1206, causing the impurities to move away from the annular filter mesh 1101. The side of the intercepting housing 1104 close to the scraping plates 1206 is arranged in a frustum shape, ensuring the amount of sewage entering the annular filter mesh 1101. Moreover, the wide-diameter part on the left side of the intercepting housing 1104 is far from the gap between the intercepting housing 1104 and the intercepting ring 1102. Therefore, the suction force on the wide-diameter part on the left side of the intercepting housing 1104 from the gap between the intercepting housing 1104 and the intercepting ring 1102 is small. The scraping plates 1206 gradually become wider from the annular filter mesh 1101 to the second toothed ring 1205, causing the impurities on the left side of the annular filter mesh 1101 to be thrown out farther, reducing the probability of the impurities on the left side of the annular filter mesh 1101 being adsorbed again. The impurities guided and thrown out by the scraping plates 1206, in cooperation with the rightward suction force generated by the gap between the intercepting housing 1104 and the intercepting ring 1102, conduct the impurities, reducing the amount of impurities adhering to the annular filter mesh 1101 and increasing the water inflow of this submersible agitator.

[0038] During the operation of this submersible agitator, the operator energizes the servo motor 902. The servo motor 902 drives the first gear 903 to rotate. The first gear 903 drives the first toothed ring 901 to rotate. The first toothed ring 901 drives the upper rotating column 4 to rotate. The rotating column 4 drives the two support housings 5 to rotate. The two support housings 5 drive the two limit sliders 1006 to rotate. The two limit sliders 1006 drive the two T-shaped sliders 6 to rotate. The two T-shaped sliders 6 drive the mounting ring 7 and the dual-axis motor 801 to rotate, changing the direction of the sewage flow pushed by the impeller. After the dual-axis motor 801 swings for a period of time, the operator makes the servo motor 902 rotate in the reverse direction, and then continues to repeat the above steps. Finally, the dual-axis motor 801 swings on the left side of the sludge pool 1, thereby promoting the sewage near the dual-axis motor 801 in multiple directions, increasing the flow rate of the sewage near the dual-axis motor 801, and preventing the sludge in the sewage pool from settling.

[0039] During the operation of the dual-axis motor 801, vibrations will occur. To prevent the components on this submersible agitator from loosening due to the vibrations of the dual-axis motor 801, the arc-shaped support plate 8 is used to buffer the vibrations generated by the dual-axis motor 801. The arc-shaped support plate 8 is in limit fit with the arc-shaped groove of the dual-axis motor 801 to prevent the dual-axis motor 801 from disengaging from between the four arc-shaped support plates 8 due to vibrations. Since the arc-shaped support plate 8 is located in the middle of the outer side of the dual-axis motor 801, the center of gravity of the dual-axis motor 801 and its components is located on the symmetry line of the two support shells 5, enabling the weight of the dual-axis motor 801 and its components to be evenly distributed. This prevents the center of gravity position of the dual-axis motor 801 and its components from shifting during vibrations, and the vibrations generated by the dual-axis motor 801 cannot be evenly dispersed by the arc-shaped support plate 8, resulting in one side of the arc-shaped support plate 8 being continuously squeezed, causing the damping effect of the arc-shaped support plate 8 to deteriorate. The buoyancy ring 13 provides an upward buoyancy force for the dual-axis motor 801 and its components to prevent the dual-axis motor 801 from continuously squeezing the lower arc-shaped support plate 8, resulting in excessive stretching of the arc-shaped support plate 8 and loss of its elasticity.

[0040] When the height of this submersible motor needs to be adjusted, taking upward movement as an example, the operator fixes the cable to ensure the height of the dual-axis motor 801. Subsequently, the operator reversely rotates the two handwheels 1002, and the two positioning blocks 1003 move upward. When the positioning block 1003 moves to the specified position, the positioning slide plate 1004 limits the adjacent limit slide block 1006. At this time, the operator pulls the cable, and the cable drives the mounting ring 7 and its components to move upward through the buckle. When the mounting ring 7 moves to the specified position, the two limit slide blocks 1006 re-limit the adjacent T-shaped slide block 6, and the position adjustment of the dual-axis motor 801 is completed. At this time, the operator releases the cable. Similarly, when the dual-axis motor 801 needs to be moved downward, the operator continues to repeat the above steps.

[0041] When the mounting ring 7 and its components need to be repaired, the operator stops the dual-axis motor 801 and the servo motor 902. The operator rotates the two handwheels 1002, and the handwheels 1002 drive the threaded rod 1001 to rotate, and the positioning block 1003 moves downward. At this time, the operator pulls the cable upward, and the cable drives the mounting ring 7 and its components to move upward through the buckle. When the T-shaped slide block 6 moves to the limit notch 501, the operator removes the T-shaped slide block 6 from the limit notch 501, removes the mounting ring 7 and its components, and releases the buckle between the cable and the mounting ring 7 to repair the damaged components on the mounting ring 7 and itself. When the repair is completed, the operator continues to repeat the above steps. By removing the mounting ring 7 and its components from the support shell 5, it is convenient for the operator to repair this submersible agitator. When this submersible agitator is no longer in use, the operator stops the dual-axis motor 801 and the servo motor 902.

[0042] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited by the above embodiments, but should be the largest scope that conforms to the innovative features mentioned in the claims.

Claims

1. A multi-directional propulsion type submersible mixer with a filtering function, characterized in that: It includes a fixed ring (2) and a connecting ring (3). Both the fixed ring (2) and the connecting ring (3) are fixedly connected to the sludge tank (1). Rotating columns (4) are rotatably connected to both the fixed ring (2) and the connecting ring (3). Symmetrically distributed support shells (5) are fixedly connected between the symmetrically distributed rotating columns (4). A T-shaped sliding groove is provided on one side of the support shell (5) close to the rotating column (4). A T-shaped slider (6) is slidably connected in the T-shaped sliding groove of the support shell (5). The support shell (5) is provided with a limiting notch (501) communicating with the T-shaped sliding groove. An installation ring (7) is fixedly connected between the symmetrically distributed T-shaped sliders (6). A cable is arranged on the installation ring (7) through a buckle. The installation ring (7) is fixedly connected with circumferentially distributed arc-shaped support plates (8). A double-shaft motor (801) is arranged inside the installation ring (7). Arc-shaped grooves are provided on the outer side surface of the double-shaft motor (801). The arc-shaped support plates (8) are in limiting cooperation with the adjacent arc-shaped grooves of the double-shaft motor (801). The output shaft of the double-shaft motor (801) is fixedly connected with an impeller. A first gear ring (901) is rotatably connected to the rotating column (4) close to the connecting ring (3). A servo motor (902) is fixedly connected to the sludge tank (1). The output shaft of the servo motor (902) is fixedly connected with a first gear (903) meshing with the first gear ring (901). The support shell (5) is provided with a positioning mechanism for limiting adjacent T-shaped sliders (6). The double-shaft motor (801) is provided with a filtering mechanism for intercepting impurities. The double-shaft motor (801) is driven by the installation ring (7) and the arc-shaped support plates (8) to swing within a certain range. The impeller of the double-shaft motor (801) pushes the nearby sludge in different directions; The positioning mechanism includes a threaded rod (1001). The threaded rod (1001) is rotatably connected to the support shell (5). A handwheel (1002) is fixedly connected to the threaded rod (1001). A positioning block (1003) that is limited and slides with the support shell (5) is in threaded cooperation with the threaded rod (1001). The positioning block (1003) is slidably connected with a positioning slide plate (1004). A first spring (1005) is fixedly connected between the positioning slide plate (1004) and the positioning block (1003). Rectangular grooves are arranged at equal intervals inside the support shell (5). A limiting slider (1006) is slidably connected in the rectangular groove of the support shell (5). One side of the limiting slider (1006) close to the T-shaped slider (6) is set as an arc surface. One side of the T-shaped slider (6) close to the limiting slider (1006) is set as an arc surface. A limiting groove is provided on one side of the T-shaped slider (6) close to the limiting slider (1006). The limiting slider (1006) is in limiting cooperation with the limiting groove of the T-shaped slider (6). A second spring (1007) is fixedly connected between the limiting slider (1006) and the support shell (5). The elastic coefficient of the first spring (1005) is greater than that of the second spring (1007).

2. The multi-directional propulsion type submersible mixer with a filtering function according to claim 1, characterized in that: The arc-shaped support plate (8) is set as a spring piece to reduce the vibration generated by the double-shaft motor (801).

3. The multi-directional propulsion type submersible mixer with a filtering function according to claim 1, characterized in that: The arc-shaped support plate (8) is located in the middle of the outer side surface of the double-shaft motor (801) to stabilize the double-shaft motor (801).

4. The multi-directionally propelled submersible mixer with a filtering function according to claim 1, characterized in that: The filtering mechanism includes an annular filter screen (1101). The annular filter screen (1101) is fixedly connected to the double-shaft motor (801). On the side of the annular filter screen (1101) far from the double-shaft motor (801), an intercepting ring (1102) is fixedly connected. On the side of the intercepting ring (1102) far from the annular filter screen (1101), a circular filter screen (1103) is fixedly connected.

5. The multi-directional propulsion type submersible mixer with a filtering function according to claim 4, characterized in that: The mounting ring (7) is fixedly connected with an intercepting housing (1104) sleeved on the outside of the intercepting ring (1102) through a U-shaped rod. The double-shaft motor (801) is provided with a scraping component for removing impurities on the annular filter screen (1101).

6. The multi-directional propulsion type submersible mixer with a filtering function according to claim 5, characterized in that: The scraping component includes a second gear (1201). The second gear (1201) is fixedly connected to the output shaft of the double-shaft motor (801) on the side far from the impeller. The mounting ring (7) is rotatably connected with a rotating rod (1202) through a support block. A third gear (1203) meshing with the second gear (1201) is fixedly connected to the rotating rod (1202). A fifth gear (1204) is fixedly connected to the end of the rotating rod (1202) far from the third gear (1203). The double-shaft motor (801) is rotatably connected with a second toothed ring (1205) meshing with the fifth gear (1204). A scraper (1206) circumferentially and equally spaced is fixedly connected to the second toothed ring (1205). The second gear (1201), the third gear (1203), the fifth gear (1204), and the second toothed ring (1205) are all sleeved with filter screens.

7. The multi-directional propulsion type submersible agitator with a filtering function according to claim 6, characterized in that: The side of the intercepting housing (1104) close to the scraper (1206) is set as a frustum of a cone for collecting impurities.

8. The multi-directionally propelled submersible mixer with a filtering function according to claim 6, characterized in that: The scraper (1206) is set as an arc for scraping impurities on the annular filter screen (1101). The scraper (1206) gradually becomes wider from the annular filter screen (1101) to the second toothed ring (1205).

9. The multi-directional propulsion type submersible mixer with a filtering function according to claim 1, characterized in that: The double-shaft motor (801) is fixedly connected with symmetrically distributed buoyancy rings (13) for protecting the lower arc-shaped support plate (8).

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