A submersible jet mixer for wastewater treatment

Abstract

A submersible impeller for wastewater treatment includes a base, a support, a swing mechanism, a lifting mechanism, a rotating mechanism, and a control end. The chassis of the support is rotatably mounted inside the base. The swing mechanism is mounted on the support and drives the impeller to swing. The lifting mechanism is mounted on the support and drives the impeller to move up and down. The rotating mechanism, except for the fixed lever seats, is mounted on the support. The fixed lever seats are evenly distributed in a circle on the base and drive the entire support to rotate, thereby changing the orientation of the impeller. The control end is used to control the operation of the swing mechanism, the lifting mechanism, and the rotating mechanism. This invention enables the impeller to swing during rotation and allows adjustment of the impeller's height and orientation, thereby achieving multi-directional and multi-angle wastewater propulsion and effectively improving wastewater treatment efficiency. The drive device of this invention is located above the wastewater surface without contacting the wastewater, better protecting the drive device and effectively extending its service life.

Description

Technical Field

[0001] This invention relates to the field of submersible jet mixers, and particularly to a submersible jet mixer for wastewater treatment. Background Technology

[0002] Submersible jet mixers are common components in wastewater treatment equipment. They offer advantages such as high efficiency, reliability, economy, and safety, and are widely used in various wastewater treatment systems. They propel water forward at a constant velocity, mixing wastewater, stirring sludge, propelling the water medium, maintaining flow velocity at the bottom of the tank, preventing sludge settling, and improving wastewater treatment efficiency. However, most existing submersible jet mixers use submersible motors for underwater drive. The impact of the jetting motion causes significant water flow, easily damaging the motor and rendering it inoperable. Furthermore, existing submersible jet mixers are fixed in place, and the impeller cannot rotate, preventing the position from being adjusted as needed. This results in poor jetting performance when there is a lot of sludge in the wastewater, and the inability to propel wastewater behind the impeller.

[0003] Therefore, there is an urgent need to invent a submersible impeller for sewage treatment, in which the drive unit does not come into contact with the sewage, reducing the risk of damage to the drive unit, and the impeller can rise, fall and swing to achieve multi-directional flow propulsion. At the same time, the impeller can also turn around to propel the sewage behind it. Summary of the Invention

[0004] To address the above problems, this invention proposes a submersible jet mixer for wastewater treatment, and the technical solution used is as follows:

[0005] A submersible impeller for wastewater treatment includes a base, a support, a swing mechanism, a lifting mechanism, a rotating mechanism, and a control terminal. The chassis of the support is rotatably mounted inside the base. The swing mechanism is mounted on the support and is used to drive the impeller to swing. The lifting mechanism is mounted on the support and is used to drive the impeller to move up and down. The rotating mechanism, except for the fixed lever seats, is mounted on the support. The fixed lever seats are evenly distributed in a circle on the base and are used to drive the entire support to rotate, thereby changing the orientation of the impeller. The control terminal is used to control the operation of the swing mechanism, the lifting mechanism, and the rotating mechanism.

[0006] Furthermore, the bracket also includes an upper end plate, a sliding groove connecting rod, and a mounting plate; the upper end plate is fixedly connected to the chassis via two sliding groove connecting rods, and the mounting plate is vertically arranged and fixedly connected to the chassis or the upper end plate; the chassis is rotatably mounted inside the base.

[0007] Furthermore, the swing mechanism also includes a motor, a telescopic universal joint, a connecting shaft, a connecting frame, a bevel gear set, a slide, a grooved roller, a second motor, and a tensioning pulley assembly; each of the slide connecting rods is provided with a vertical slide groove, and the slide is slidably mounted on two vertical slide grooves via the left and right ends of the impeller bracket; the slide also includes an arc-shaped slide frame, a grooved roller frame, and a rack, with two racks respectively vertically fixed at the left and right ends of the impeller bracket, parallel to the slide connecting rod and sliding vertically relative to the slide connecting rod; the arc-shaped slide frame and the grooved roller frame are fixedly mounted on the impeller bracket, with the arc-shaped slide frame located above the grooved roller frame; a connecting rod is fixedly installed inside the impeller bracket, and the tail end of the impeller is rotatably mounted on the connecting rod; the arc-shaped slide frame is provided with an arc-shaped slide groove centered on the axis of the connecting rod;

[0008] The upper shaft of the retractable universal joint is coaxially and fixedly connected to the output end of motor one, and the lower shaft is coaxially and fixedly connected to the top end of the connecting shaft; a slider one is fixedly installed in the middle of the connecting shaft, and the slider one is slidably installed in the arc-shaped groove of the arc-shaped slide frame; the lower part of the connecting shaft is rotatably installed on the connecting frame, and the bottom end is coaxially and fixedly connected to the input bevel gear of the bevel gear set; the output bevel gear of the bevel gear set is coaxially and fixedly connected to the rotating shaft of the impeller; the front end of the connecting frame is fixedly connected to the rear end of the impeller; a slide groove one is provided at the rear of the connecting frame; the upper end of the grooved roller frame is provided with two slide grooves. A second sliding groove, parallel to the plane of the connecting rod, has a grooved roller rotatably mounted at its lower end, with the grooved roller parallel to the second sliding groove. A second slider is slidably mounted within the second sliding groove, with its upper end fitted into the first sliding groove and sliding within it. The grooved roller has an elliptical groove, and the lower end of the second slider is slidably mounted within this elliptical groove, causing the grooved roller to rotate and drive the second slider to slide left and right within the second sliding groove. Simultaneously, the upper end of the second slider slides within the first sliding groove and drives the connecting frame to rotate. A second motor is mounted on the upper end plate, and the second motor drives the grooved roller to rotate via a tensioning pulley assembly.

[0009] Furthermore, the tensioning pulley assembly includes an extension frame and a transmission assembly 1. The extension frame is fixedly mounted on the upper end plate and located directly above one end of the grooved roller shaft 2. The plane of the extension frame is perpendicular to the plane of the upper end plate. It includes a return spring and a slider 3. The rear of the extension frame is provided with a slide groove 3. The slider 3 is slidably mounted in the slide groove 3 and connected to the front of the extension frame through the return spring. The transmission assembly 1 includes a transmission wheel 1 and a transmission belt 1. The transmission wheel 1 has at least four parts. The first transmission wheel 1 is coaxially and fixedly connected to that end of the grooved roller shaft 2. The second transmission wheel 1 is rotatably mounted on the slider 3. The third transmission wheel 1 is coaxially and fixedly connected to the output end of the motor 2 and rotatably mounted on the extension frame. The other transmission wheels 1 are all rotatably mounted on the extension frame, and all transmission wheels 1 are located in the same vertical plane. The transmission belt 1 is driven and mounted on all transmission wheels 1, so that the transmission belt 1 is always in a taut state.

[0010] Furthermore, the lifting mechanism includes a third motor, a second transmission assembly, a worm, a worm wheel, and a gear; there are two worms, both symmetrically and vertically arranged, with the upper end of each worm rotatably mounted on the upper end plate and the lower end rotatably mounted on a sliding groove connecting rod on one side; there are two worm wheels, each worm wheel being coaxially and fixedly connected to a gear via a third rotating shaft, with the worm wheel on the same side meshing with the worm on the same side, and the gear on the same side meshing with the rack on the same side, and each third rotating shaft being rotatably mounted on a corresponding sliding groove connecting rod; the two worms rotate synchronously via the second transmission assembly; the third motor is mounted on the upper end plate, and its output end is coaxially and fixedly connected to the top of one of the worms.

[0011] Furthermore, the rotating mechanism also includes a motor, a transmission assembly, and a lever wheel; the lever wheel has levers radiating outwards in a radial pattern; the lever wheel is rotatably mounted on a mounting plate; the bottom end of the fixed lever seat is fixedly mounted on the base, and the upper end is fixedly mounted with levers 2, which point towards the center of the base; when the lever wheel rotates, levers 1 actuate levers 2; the motor is mounted on the upper plate, and its output end drives the lever wheel to rotate through the transmission assembly.

[0012] Because the present invention adopts the above-described technical solution, the present invention has the following advantages:

[0013] 1. This invention, through the coordinated design of a swing mechanism, a lifting mechanism, and a rotating mechanism, enables the impeller to swing during rotation and allows for adjustment of the impeller's height and orientation, thereby achieving multi-directional and multi-angle sewage propulsion and effectively improving sewage treatment efficiency.

[0014] 2. The first motor, the second motor, the third motor, and the fourth motor of the present invention constitute a drive device. The drive device is mounted on the upper end plate, which is located above the sewage surface without contacting the sewage, thus better protecting the drive device and effectively extending its service life.

[0015] 3. Through its control design, this invention greatly improves the operational efficiency of operators; in addition, the equipment design is relatively simple and easy to maintain. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the base of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the bracket of the present invention.

[0019] Figure 4-5 This is a schematic diagram of the swing mechanism of the present invention.

[0020] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 7 This is a schematic diagram of the carriage structure of the rocking mechanism in this invention.

[0022] Figure 8 This is a schematic diagram of the grooved roller of the rocking mechanism in this invention.

[0023] Figure 9 This is a schematic diagram of the lifting mechanism of the present invention.

[0024] Figure 10 This is a schematic diagram of the rotating mechanism of the present invention.

[0025] Figure 11 This is a schematic diagram showing the connection between the control terminal and electrical components of the present invention.

[0026] Icon labels:

[0027] 1-Base;

[0028] 2-Staff;

[0029] 201 - Upper end plate; 202 - Slide rail connecting rod; 203 - Mounting plate; 204 - Chassis;

[0030] 3-Swing mechanism;

[0031] 301-Motor 1; 302-Universal Joint (3021-Upper Universal Joint; 3022-Lower Universal Joint); 303-Telescopic Shaft; 304-Connecting Shaft (3041-Slider 1); 305-Connecting Frame; 306-Bevel Gear Set; 307-Impeller; 308-Slide Carrier [3081-Impeller Support; 3082-Arc-shaped Slide Carrier; 3083-Groove Roller Carrier (3083a-Slider 2); 3084-Rack]; 309-Groove Roller; 310-Extension Frame (3101-Return Spring; 3102-Slider 3); 311-Motor 2; 312-Transmission Assembly 1 (3121-Transmission Wheel 1; 3122-Transmission Belt 1);

[0032] 4- Lifting mechanism;

[0033] 401-Motor III; 402-Transmission Component II; 403-Worm; 404-Worm Gear; 405-Gear;

[0034] 5-Rotating mechanism;

[0035] 501-Motor 4; 502-Transmission Component 3; 503-Shift Lever Wheel; 504-Fixed Shift Lever Seat;

[0036] 6-Control terminal. Detailed Implementation

[0037] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] In the description of this invention, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0039] Example:

[0040] This embodiment is used to stir sludge and mix wastewater, such as Figure 1 As shown, a submersible jet generator for wastewater treatment includes a base 1, a support 2, a swing mechanism 3, a lifting mechanism 4, a rotating mechanism 5, and a control terminal 6.

[0041] As a specific implementation method of this embodiment, such as Figure 2 As shown, the base 1 is fixedly installed at the bottom of the sewage tank. It is hollow inside and circular in shape. 35 fixed lever seats 504 are evenly distributed around the hollow circle. The bottom end of each fixed lever seat 504 is fixedly installed on the base 1, and the upper end is fixedly installed with lever 2. All lever 2 are distributed in a radial pattern with the center of the hollow circle as the center.

[0042] As a specific implementation method of this embodiment, such as Figure 3 As shown, the bracket 2 includes an upper end plate 201, a sliding groove connecting rod 202, a mounting plate 203, and a base 204; the upper end plate 201 and the left and right ends of the base 204 are fixedly connected by two sliding groove connecting rods 202, and each sliding groove connecting rod 202 is provided with a vertical sliding groove; the mounting plate 203 is vertically arranged and its lower end is fixedly connected to the base 204, and its upper end is fixedly connected to the upper end plate 201; the base 204 is circular and is rotatably installed in the hollow circle of the base 1;

[0043] As a specific implementation method of this embodiment, such as Figure 4-8 As shown, the rocking mechanism 3 includes a motor 301, a telescopic universal joint, a connecting shaft 304, a connecting frame 305, a bevel gear set 306, an impeller 307, a slide 308, a grooved roller 309, an extension frame 310, a second motor 311, and a transmission assembly 312; the slide 308 includes an impeller support 3081, an arc-shaped slide rail support 3082, a grooved roller support 3083, and a rack 3084. The left and right ends of the impeller support 3081 are slidably mounted on the vertical slide rails of the two slide rail connecting rods 202, respectively; two racks 3084 are provided, each vertically... The impeller 307 is fixedly installed on the left and right ends of the impeller bracket 3081, parallel to and in contact with the chute connecting rod 202, and slides vertically relative to the chute connecting rod 202; the arc-shaped chute frame 3082 and the grooved roller frame 3083 are fixedly installed on the impeller bracket 3081, with the arc-shaped chute frame 3082 above the grooved roller frame 3083; a connecting rod is vertically fixedly installed in the middle of the impeller bracket 3081, and the tail end of the impeller 307 is horizontally rotatably mounted on the connecting rod; the arc-shaped chute frame 3082 is provided with an arc-shaped chute with the axis of the connecting rod as the center;

[0044] Specifically, the telescopic universal joint includes a universal joint 302 and a telescopic shaft 303. The universal joint 302 includes an upper universal joint 3021 and a lower universal joint 3022. One shaft of the upper universal joint 3021 is coaxially and fixedly connected to the upper end of the telescopic shaft 303, and the other shaft is coaxially and fixedly connected to the output end of a motor 301, which is mounted on an upper end plate 301. One shaft of the lower universal joint 3022 is coaxially and fixedly connected to the lower end of the telescopic shaft 303, and the other shaft is coaxially and fixedly connected to the top end of a connecting shaft 304. A slider 3041 is fixedly installed in the middle of the connecting shaft 304, and the slider 3041 is slidably installed in the arc-shaped groove of the arc-shaped slide frame 3082. The lower part of the connecting shaft 304 is rotatably mounted on a connecting frame 305, and its bottom end is connected to a bevel gear set 3082. The input bevel gear of the 6 is coaxially fixedly connected; the output bevel gear of the bevel gear set 306 is coaxially fixedly connected to the rotating shaft of the impeller 307, and the input bevel gear meshes with the output bevel gear; the front end of the connecting frame 305 is fixedly connected to the rear end of the impeller 307; the rear part of the connecting frame 305 is provided with a horizontal slide groove one coaxial with the rotating shaft; the upper end of the grooved roller frame 3083 is provided with a slide groove two parallel to the plane where the two slide groove connecting rods 202 are located, and the lower end is rotatably installed with a grooved roller 309, which is parallel to the slide groove two; a slider two 3083a is slidably installed in the slide groove two, and the upper end of the slider two 3083a is fitted into the slide groove one and slides in the slide groove one; the grooved roller 309 is provided with an elliptical groove, and the lower end of the slider two 3083a is slidably installed in the elliptical groove;

[0045] When the groove roller 309 rotates, the lower end of the second slider 3083a slides in the elliptical groove, causing the second slider 3083a to slide left and right in the second slide groove. At the same time, the upper end of the second slider 3083a slides in the first slide groove and causes the connecting frame 305 to swing. The connecting frame 305 causes the tail end of the impeller 307 to rotate, thereby causing the fan blades at the front end of the impeller 307 to swing, realizing the multi-angle sewage push flow.

[0046] The extension frame 310 is fixedly mounted on the upper end plate 201 and located directly above one end of the rotating shaft of the groove roller 309. The plane of the extension frame 310 is perpendicular to the plane of the upper end plate 201. It includes a return spring 3101 and a slider 3102. The rear of the extension frame 310 is provided with a horizontal slide groove 3. The slider 3102 is slidably mounted in the slide groove 3 and is connected to the front of the extension plate 310 through the return spring 3101. The return spring 3101 is a compression spring. When the slider 3102 moves along the slide groove 3 to the inside of the extension frame 310, the return spring 3101 is compressed. The transmission assembly 312 includes a transmission wheel 3121 and a transmission belt. 3122, There are four transmission wheels 3121. One transmission wheel 3121 is coaxially and fixedly connected to the same end of the grooved roller 309 rotating shaft 2. One transmission wheel 3121 is rotatably mounted on the slider 3102. One transmission wheel 3121 is coaxially and fixedly connected to the output end of the motor 311 and rotatably mounted on the extension frame 310. One transmission wheel 3121 is rotatably mounted on the extension frame 310 and located diagonally in front of the slider 3102. All transmission wheels 3121 are located in the same vertical plane. The transmission belt 3122 is driven and mounted on all transmission wheels 3121. The motor 311 is mounted on the upper end plate 201.

[0047] When the grooved roller 309 descends, it pulls the transmission belt 3122 and causes the slider 3102 to move inside the slide rail three-way extension frame 310, compressing the return spring 3101; when the grooved roller 309 rises, the return spring 3101 gradually returns to its original position, and the slider 3102 moves outside the slide rail three-way extension frame 310, causing the transmission belt 3122 to extend, so that the transmission belt 3122 is always in a taut state.

[0048] As a specific implementation method of this embodiment, such as Figure 9 As shown, the lifting mechanism 4 includes a motor 401, a transmission assembly 402, a worm gear 403, a worm wheel 404, and a gear 405. Two worm gears 403 are provided, both symmetrically and vertically arranged. The upper end of each worm gear 403 is rotatably mounted on the upper end plate 201, and the lower end is rotatably mounted on a sliding groove connecting rod 202 on one side. Two worm wheels 404 are provided, each worm wheel 404 being coaxially and fixedly connected to a gear 405 via a rotating shaft 405. Worm wheels 404 on the same side are connected to gears 405 on the same side. Worm gears 403 mesh, gears 405 on the same side mesh with racks 3084 on the same side, and each shaft 3 is rotatably mounted on the corresponding sliding groove connecting rod 202; transmission assembly 2 402 includes transmission wheel 2 and transmission belt 2, and the top ends of the two worm gears 403 are respectively coaxially fixedly connected to a transmission wheel 2, and the two transmission wheels 2 are connected by transmission belt 2; motor 3 401 is mounted on the upper end plate 201, and its output end is coaxially fixedly connected to the transmission wheel 2 at the top end of one of the worm gears 403;

[0049] As a specific implementation method of this embodiment, such as Figure 10 As shown, the rotating mechanism 5 includes a motor 501, a transmission assembly 502, a lever wheel 503, and a fixed lever seat 504; the lever wheel 503 has 10 levers evenly distributed radially around its center; the lever wheel 503 is rotatably mounted on the mounting plate 203; when the lever wheel 503 rotates, the levers actuate the levers; the transmission assembly 503 includes a transmission wheel and a transmission belt; the motor 501 is mounted on the upper end plate 201, and its output end is coaxially and fixedly connected to one of the transmission wheels; the lever wheel 503 is coaxially and fixedly connected to one of the transmission wheels; the two transmission wheels are connected by the transmission belt.

[0050] like Figure 11 As shown, the control terminal 6 includes a main controller, an information transmission module, a storage module, and a power supply module. The main controller is electrically connected to the information transmission module, the storage module, the power supply module, and motors 301, 311, 401, and 501. The main controller is used to control the operation of the entire submersible jet mixer for wastewater treatment. The information transmission module is used for information transmission between the main controller and the swing mechanism 3, the lifting mechanism 4, and the rotating mechanism 5. The power supply module is used to provide a stable power supply to the control terminal 6. The storage module is used to store the operating information data of the entire submersible jet mixer for wastewater treatment.

[0051] The working principle of this embodiment:

[0052] Installation: Fix the base 1 to the bottom of the sewage tank, install each component in sequence, and ensure that the upper plate 201 is above the sewage surface;

[0053] Impeller 307 oscillates and agitates: Motor 1 301 is started. Motor 1 301 drives the telescopic shaft 303 to rotate through the upper universal joint 3021. The telescopic shaft 303 drives the connecting shaft 304 to rotate through the lower universal joint 3022. The connecting shaft 304 drives the impeller 307's rotating shaft to rotate through the bevel gear set 306, which in turn drives the impeller 307's blades to rotate. At the same time, Motor 2 311 is started. Motor 2 311 drives the grooved roller 309 to rotate through the transmission assembly 1 312, so that the lower end of slider 2 3083a slides in the elliptical groove of the grooved roller 309. Slider 2 3083 slides left and right in the slide groove 2. The upper end of slider 2 3083a slides in the slide groove 1 and drives the connecting frame 305 to oscillate. The connecting frame 305 drives the tail end of the impeller 307 to rotate, thereby driving the blades at the front end of the impeller 307 to oscillate and rotate, achieving multi-angle push flow of sewage.

[0054] Impeller 307 lifting: Start motor 3 401, motor 3 401 causes two worm gears 403 to rotate synchronously through transmission component 2 402; the two worm gears 403 respectively drive the corresponding worm wheel 404 to rotate, the two worm wheels 404 respectively drive the gear 405 fixedly connected to them on the same axis to rotate, the two gears 405 mesh with the corresponding rack 3084 to realize the rise and fall of rack 3084, the rise and fall of rack 3084 drives the slide 308 to rise and fall, thereby causing slide 308 to drive impeller 307 to rise and fall, realizing the propulsion of sewage at different heights;

[0055] Impeller 307 rotation: Start motor 4 501, motor 4 501 drives lever wheel 503 to rotate through transmission component 3 502. Lever 1 on lever wheel 503 pushes lever 2 on fixed lever seat 504. Since fixed lever seat 504 is fixedly installed on base 1, and base 1 is fixedly installed on the bottom of sewage tank, when lever wheel 503 rotates, it will drive chassis 204 to rotate, thereby driving the entire bracket 2 to rotate. Impeller 307 installed on bracket 2 also rotates accordingly, changing the orientation of impeller 307 to achieve multi-directional flow.

Claims

1. A submersible jet mixer for wastewater treatment, characterized in that, The system includes a base (1), a bracket (2), a swing mechanism (3), a lifting mechanism (4), a rotating mechanism (5), and a control terminal (6). The chassis (204) of the bracket (2) is rotatably mounted inside the base (1). The swing mechanism (3) is mounted on the bracket (2) and is used to drive the impeller (307) to swing. The lifting mechanism (4) is mounted on the bracket (2) and is used to drive the impeller (307) to move up and down. Except for the fixed lever seat (504), the rotating mechanism (5) is mounted on the bracket (2). The fixed lever seat (504) is evenly distributed in a circle and fixedly mounted on the base (1) to drive the bracket (2) to rotate as a whole, thereby changing the orientation of the impeller (307). The control terminal (6) is used to control the operation of the swing mechanism (3), the lifting mechanism (4), and the rotating mechanism (5). The bracket (2) also includes an upper end plate (201), a sliding connecting rod (202), and a mounting plate (203); the upper end plate (201) is fixedly connected to the chassis (204) through two sliding connecting rods (202), and the mounting plate (203) is vertically arranged and fixedly connected to the chassis (204) and / or the upper end plate (201); The swing mechanism (3) also includes motor one (301) and motor two (311), and the lifting mechanism (4) includes motor three (401). The rotating mechanism (5) also includes a motor (501), a transmission assembly (502), and a lever wheel (503); the lever wheel (503) has levers radiating outwards from the center; the lever wheel (503) is rotatably mounted on the mounting plate (203); a lever 2 is fixedly mounted on the bottom and upper end of the fixed lever seat (504), and the lever 2 points towards the center of the base; when the lever wheel (503) rotates, lever 1 moves lever 2; the output end of the motor (501) drives the lever wheel (503) to rotate through the transmission assembly (502); The base (1) is fixedly installed at the bottom of the sewage tank; motor one (301), motor two (311), motor three (401) and motor four (501) constitute a driving device, which is installed on the upper end plate (201), which is located above the sewage surface.

2. The submersible jet mixer for wastewater treatment according to claim 1, characterized in that, The swing mechanism (3) further includes a telescopic universal joint, a connecting shaft (304), a connecting frame (305), a bevel gear set (306), a slide (308), a grooved roller (309), and a tensioning pulley assembly; each of the slide connecting rods (202) is provided with a vertical slide groove, and the slide (308) is slidably mounted on two vertical slide grooves through the left and right ends of the impeller bracket (3081); the slide (308) further includes an arc-shaped slide groove frame (3082), a grooved roller frame (3083), and a rack (3084), and the rack (3084) is provided in two parts, respectively. The impeller (307) is vertically fixed at both ends of the impeller bracket (3081) and parallel to the chute connecting rod (202), and slides vertically relative to the chute connecting rod (202); the arc-shaped chute frame (3082) and the groove roller frame (3083) are fixedly installed on the impeller bracket (3081), and the arc-shaped chute frame (3082) is located above the groove roller frame (3083); a connecting rod is fixedly installed inside the impeller bracket (3081), and the tail end of the impeller (307) is rotatably installed on the connecting rod; the arc-shaped chute frame (3082) is provided with an arc-shaped chute with the axis of the connecting rod as the center; The upper shaft of the telescopic universal joint is coaxially and fixedly connected to the output end of motor one (301), and the lower shaft is coaxially and fixedly connected to the top end of the connecting shaft (304); a slider one (3041) is fixedly installed in the middle of the connecting shaft (304), and the slider one (3041) is slidably installed in the arc-shaped groove of the arc-shaped slide frame (3082); the lower part of the connecting shaft (304) is rotatably installed on the connecting frame (305), and the bottom end is coaxially and fixedly connected to the input bevel gear of the bevel gear set (306); the output bevel gear of the bevel gear set (306) is coaxially and fixedly connected to the rotating shaft of the impeller (307); the front end of the connecting frame (305) is fixedly connected to the rear end of the impeller (307); the rear part of the connecting frame (305) is provided with a slide groove one; the grooved roller frame (3083) The upper end is provided with a second slide groove parallel to the plane of the connecting rod (202) of the two slide grooves, and the lower end is rotatably mounted with a grooved roller (309), which is parallel to the second slide groove. A second slider (3083a) is slidably mounted in the second slide groove, and the upper end of the second slider (3083a) is fitted into the first slide groove and slides in the first slide groove. The grooved roller (309) is provided with an elliptical groove, and the lower end of the second slider (3083a) is slidably mounted in the elliptical groove, so that the grooved roller (309) rotates and drives the second slider (3083a) to slide left and right in the second slide groove. At the same time, the upper end of the second slider (3083a) slides in the first slide groove and drives the connecting frame (305) to rotate. The second motor (311) drives the grooved roller (309) to rotate through the tensioning pulley assembly.

3. The submersible jet mixer for wastewater treatment according to claim 2, characterized in that, The tensioning pulley assembly includes an extension frame (310) and a transmission assembly (312); the extension frame (310) is fixedly mounted on the upper end plate (201) and located directly above one end of the rotating shaft of the grooved roller (309), the plane of the extension frame (310) is perpendicular to the plane of the upper end plate (201), and includes a return spring (3101) and a slider (3102); the extension frame (310) has a sliding groove three at the rear, and the slider (3102) is slidably mounted in the sliding groove three and connected to the front of the extension frame (310) through the return spring (3101); the transmission assembly (312) includes a transmission wheel (3121) and a transmission belt (3122), the extension frame (3101) is fixedly mounted on the upper end plate (201) and located directly above one end of the rotating shaft of the grooved roller (309), the plane of the extension frame (310) is perpendicular to the plane of the upper end plate (201), and includes a return spring (3101) and a slider (3102); the extension frame (310) is fixedly mounted on the upper end plate (201) and located directly above one end of the rotating shaft of the grooved roller (309), the slider (3102) is slidably mounted in the sliding groove three and connected to the front of the extension frame (310) through the return spring (3101); the transmission assembly (312) includes a transmission wheel (3121) and a transmission belt (3122), the extension frame (310) is fixedly mounted on the upper end plate (201) and located directly above one end of the rotating shaft of the grooved roller (309), the slider (3102) is slidably mounted in the sliding groove three and connected to the front of the extension frame (310) through the return spring (3101); the transmission assembly (312) includes a transmission wheel (3121) and a At least four transmission wheels (3121) are provided. The first transmission wheel (3121) is coaxially fixedly connected to the end of the rotating shaft of the grooved roller (309). The second transmission wheel (3121) is rotatably mounted on the slider (3102). The third transmission wheel (3121) is coaxially fixedly connected to the output end of the motor (311) and rotatably mounted on the extension frame (310). The other transmission wheels (3121) are rotatably mounted on the extension frame (310), and all transmission wheels (3121) are located in the same vertical plane. The transmission belt (3122) is driven and mounted on all transmission wheels (3121), so that the transmission belt (3122) is always in a taut state.

4. The submersible jet mixer for wastewater treatment according to claim 2, characterized in that, The lifting mechanism (4) further includes a transmission assembly (402), a worm (403), a worm wheel (404), and a gear (405); there are two worms (403) and they are symmetrically and vertically arranged. The upper end of each worm (403) is rotatably mounted on the upper end plate (201), and the lower end is rotatably mounted on a sliding groove connecting rod (202) on one side; there are two worm wheels (404), and each worm wheel (404) is coaxially and fixedly connected to a gear (405) through a rotating shaft three. The worm wheel (404) on the same side meshes with the worm (403), and the gear (405) on the same side meshes with the rack (3084). Each rotating shaft three is rotatably mounted on the corresponding sliding groove connecting rod (202); the two worms (403) rotate synchronously through the transmission assembly (402); the output end of the motor three (401) is coaxially and fixedly connected to the top end of one of the worms (403).

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