Variable frequency speed regulation paddle for sewage dosing and stirring

Abstract

The utility model discloses a sewage dosing stirring is with frequency control speed paddle, including stirring shaft, the side surface rotation of stirring shaft is connected with the pivot, and the end surface fixed connection of pivot has the stirring blade, and the upper surface of stirring blade is close to the position of side edge and is swinged in and is connected with the driving link spare, and the surface of stirring shaft is located the position of driving link spare top and is provided with the adjusting assembly. The utility model is through setting pivot, driving link spare and adjusting assembly, and the stirring blade is dragged around pivot by driving link spare and is dragged under the rotation of adjusting assembly, so that the stirring blade is dragged by driving link spare and changes own inclination angle, reaches the purpose that the inclination angle of stirring blade is adjusted, makes it can adjust according to different stirring demand, solves the paddle inclination angle fixed in the sewage treatment of using to the problem that it is difficult to change according to the stirring demand and changes the paddle of different inclination angle according to different stirring demand and leads to the further improvement of cost.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage mixing equipment, and in particular to a variable frequency speed-regulating blade for sewage dosing and mixing. Background Technology

[0002] Wastewater generally comes from residential areas, commercial areas, etc. In cities, wastewater generated in daily life is treated in a unified manner. It is purified through physical, chemical, and biological methods to make the wastewater meet the discharge standards or be reused. Wastewater treatment is a key link in ensuring ecology and public health. Paddles are equipment used in the wastewater treatment process and belong to the category of mixing equipment.

[0003] After the wastewater is treated with chemicals, the wastewater is stirred by the impeller in the mixing device to fully mix the wastewater and chemicals. The impeller is rotated by a geared motor, and the speed of the impeller is adjusted by adjusting the speed of the geared motor, thereby achieving variable frequency speed regulation of the impeller.

[0004] In actual use, the blades are generally folded and fixed to the side of the mixing shaft. Since the blades are fixed to the surface of the mixing shaft, the tilt angle of the blades is fixed. The fixed tilt angle of the blades also results in a fixed effect on the sewage flow field and shear force, which in turn results in a fixed mixing effect. It is difficult to change according to the mixing requirements, so the only option is to replace the blades with blades of different tilt angles, which further increases the cost of use.

[0005] Therefore, how to provide a variable frequency speed-regulating impeller for wastewater dosing and mixing is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] One objective of this invention is to provide a variable frequency speed-regulating impeller for stirring wastewater dosing. This invention solves the problems of existing wastewater treatment systems where the impeller tilt angle is fixed and difficult to change according to stirring requirements, and where changing impellers with different tilt angles for different stirring requirements leads to further increased costs.

[0007] A variable frequency speed-regulating impeller for wastewater dosing and mixing, according to an embodiment of the present invention, includes a stirring shaft, a rotating shaft rotatably connected to the side of the stirring shaft, and a stirring blade fixedly connected to the end face of the rotating shaft; a driving rod is movably connected to the upper surface of the stirring blade near its side, and an adjustment assembly is provided on the surface of the stirring shaft above the driving rod, with the end of the driving rod away from the stirring blade movably connected to the adjustment assembly; the adjustment assembly includes a fixed ring, an adjusting ring, and a locking member, the fixed ring being fixedly sleeved on the surface of the stirring shaft, the adjusting ring being rotatably sleeved on the surface of the fixed ring, the locking member being provided at the top of the adjusting ring, and the driving rod being provided at the bottom of the adjusting ring.

[0008] Each set of stirring blades corresponds to a set of driving rods. A set of driving rods includes two ball heads, a ball head groove, a ball head seat, and a connecting rod. The two ball heads are fixedly connected to both ends of the connecting rod. The ball head groove is opened on the upper surface of the stirring blade near the side. The ball head seat is set at the bottom of the rotating ring. One ball head is movably connected inside the ball head groove, and the other ball head is movably connected inside the ball head seat.

[0009] The fixed ring has an annular groove on its side, and a tapered bearing is installed inside the annular groove. The adjusting ring is fixedly sleeved on the surface of the tapered bearing.

[0010] The locking components are in two sets, symmetrically arranged on the top of the adjusting ring. Each locking component includes a locking tooth groove, a threaded hole, a limiting groove, a locking block, and a pressing bolt. The locking tooth groove is located on the upper surface of the fixed ring, the threaded hole is located on the surface of the adjusting ring and directly above the locking tooth groove, the limiting groove is located inside the threaded hole and aligns the threaded hole with the inner wall of the adjusting ring, the locking block is movably connected inside the limiting groove, and the locking block meshes with the locking tooth groove. The pressing bolt is threadedly connected inside the threaded hole, and the bottom end of the pressing bolt abuts against the top of the locking block.

[0011] The limiting groove is a square groove, and the shape of the locking block matches the shape of the limiting groove.

[0012] A lever is fixed to the side of the adjusting ring.

[0013] The side of the stirring blade is provided with a telescopic blade assembly, which includes a telescopic groove, a telescopic blade plate and a positioning component. The telescopic groove is opened on the side of the stirring blade away from the stirring shaft, the telescopic blade plate is movably connected inside the telescopic groove, and the positioning component is set on the telescopic blade plate and the stirring blade.

[0014] The positioning assembly includes a placement groove, a positioning tooth groove, a positioning tooth block, a limiting seat, and a positioning plate. The placement groove is formed on the lower surface of the telescopic blade, the positioning tooth groove is formed on the inner wall of the positioning groove, the positioning tooth block is movably connected inside the placement groove, and the positioning tooth block and the positioning tooth groove mesh with each other. The side of the limiting seat is fixedly connected to the surface of the stirring blade, and the limiting seat is movably sleeved on the surface of the positioning plate. The side of the positioning tooth block away from the positioning tooth groove abuts against the side of the positioning plate close to the telescopic blade.

[0015] The positioning tooth block has guide grooves on both sides, and a guide rod is fixedly connected to the end face of the stirring blade near the guide groove. The guide rod is movably connected inside the guide groove.

[0016] The beneficial effects of this utility model are:

[0017] By setting up a rotating shaft, driving rods, and adjusting components, the rotation of the adjusting components will drive the driving rods to pull the stirring blades around the rotating shaft. In this way, the stirring blades are pulled by the driving rods to change their own tilt angle, achieving the purpose of adapting the tilt angle of the stirring blades to different stirring needs. This solves the problem that the tilt angle of the blades used in existing sewage treatment is fixed and difficult to change according to stirring needs, and that replacing blades with different tilt angles for different stirring needs will further increase costs.

[0018] By setting up a telescopic blade assembly, the length of the stirring blade can be changed, thus adjusting the stirring range of the stirring blade, increasing the stirring range, and enhancing the stirring efficiency. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a variable frequency speed-regulating impeller for stirring wastewater dosing proposed in this utility model.

[0021] Figure 2 This is a cross-sectional three-dimensional structural diagram of the position adjustment component in a variable frequency speed-regulating impeller for wastewater dosing and stirring, as proposed in this utility model.

[0022] Figure 3 This is a cross-sectional three-dimensional structural diagram of the locking element position in the adjustment component of a variable frequency speed-regulating impeller for wastewater dosing and stirring, as proposed in this utility model.

[0023] Figure 4 This is a three-dimensional cross-sectional view of the telescopic blade assembly in a variable frequency speed-regulating impeller for wastewater dosing and stirring, as proposed in this utility model.

[0024] Figure 5 This is a three-dimensional cross-sectional view of another part of the telescopic blade assembly in a variable frequency speed-regulating impeller for wastewater dosing and stirring, as proposed in this utility model.

[0025] Figure 6 This is a schematic diagram of the driving rod in a variable frequency speed-regulating impeller for stirring wastewater dosing proposed in this utility model.

[0026] The attached diagram shows: 1. Stirring shaft; 2. Rotating shaft; 3. Stirring blade; 4. Driving rod; 5. Adjusting assembly; 6. Fixing ring; 7. Adjusting ring; 8. Locking component; 9. Ball head body; 10. Ball head groove; 11. Ball head seat; 12. Connecting rod; 13. Annular groove; 14. Tapered bearing; 15. Locking tooth groove; 16. Threaded hole; 17. Limiting groove; 18. Locking block; 19. Extrusion bolt; 20. Toggle lever; 21. Telescopic blade assembly; 22. Telescopic groove; 23. Telescopic blade plate; 24. Positioning assembly; 25. Placement groove; 26. Positioning tooth groove; 27. Positioning tooth block; 28. Limiting seat; 29. ​​Positioning plate; 30. Guide groove; 31. Guide rod. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] refer to Figure 1-5 In this embodiment, a stirring shaft 1 is included. The stirring shaft 1 is designed in a hexagonal prism shape to facilitate the fit between the stirring blades 3 and the stirring shaft 1. A rotating shaft 2 is rotatably connected to the side of the stirring shaft 1. The rotating shaft 2 is stably rotated on the stirring shaft 1 through bearings and is embedded in the surface of the stirring shaft 1. The stirring blades 3 are fixedly connected to the end face of the rotating shaft 2. In this embodiment, three sets of stirring blades 3 are provided. The three sets of stirring blades 3 are arranged in a circular array with the axis of the stirring shaft 1 as the array center. The stirring blades 3 are rotated by a geared motor (not shown in the figure). Since the rotation of the geared motor can be controlled, the geared motor achieves frequency conversion speed regulation of the stirring blades 3 by changing its own speed. The stirring blade 3 rotates via the rotating shaft 2. A driving rod 4 is movably connected to the upper surface of the stirring blade 3 near the side. Each set of stirring blades 3 corresponds to a set of driving rods 4. A set of driving rods 4 includes two ball heads 9, a ball head groove 10, a ball head seat 11, and a connecting rod 12. The two ball heads are fixedly connected to both ends of the connecting rod 12. The ball head groove 10 is opened on the upper surface of the stirring blade 3 near the side. The ball head seat 11 is located at the bottom of the rotating ring. One ball head 9 is movably connected inside the ball head groove 10, and the other ball head 9 is movably connected inside the ball head seat 11. The spherical design allows the connecting rod 12 to rotate freely and be adjusted.

[0029] An adjustment component 5 is provided on the surface of the stirring shaft 1 above the driving rod 4. The end of the driving rod 4 away from the stirring blade is movably connected to the adjustment component 5. The adjustment component 5 is used to pull the driving rod 4 to move. By moving the driving rod 4, the stirring blade 3 is pulled to rotate around the rotating shaft 2, thereby adjusting the tilt of the stirring blade 3.

[0030] The adjustment assembly includes a fixed ring 6, an adjusting ring 7, and a locking member 8. The fixed ring 6 is fixedly sleeved on the surface of the stirring shaft 1, and the adjusting ring 7 is rotatably sleeved on the surface of the fixed ring 6. The locking member 8 is located at the top of the adjusting ring 7, and the driving rod 4 is located at the bottom of the adjusting ring 7. An annular groove 13 is provided on the side of the fixed ring 6, and a tapered bearing 14 is provided inside the annular groove 13. The adjusting ring 7 is fixedly sleeved on the surface of the tapered bearing 14.

[0031] The number of locking components 8 is two sets, and the two sets of locking components 8 are symmetrically arranged on the top of the adjusting ring 7. The locking component 8 includes a locking tooth groove 15, a threaded hole 16, a limiting groove 17, a locking block 18, and a pressing bolt 19. The locking tooth groove 15 is opened on the upper surface of the fixing ring 6, the threaded hole 16 is opened on the surface of the adjusting ring 7 and is located directly above the locking tooth groove 15, and the limiting groove 17 is opened inside the threaded hole 16 and the limiting groove 17 aligns the threaded hole 16 with the inner wall of the adjusting ring 7. The locking block 18 is movably connected inside the limiting groove 17. The locking block 18 and the locking tooth groove 15 mesh with each other. The clamping bolt 19 is threadedly connected inside the threaded hole 16. The bottom end of the clamping bolt 19 abuts against the top of the locking block 18. The limiting groove 17 is a square groove. The shape of the locking block 18 matches the shape of the limiting groove 17. The purpose of the matching is to prevent the locking block 18 from rotating inside the limiting groove 17 and causing the teeth on the locking block 18 to misalign with the locking tooth groove 15.

[0032] In specific operation, the tilt angle of the stirring blade 3 is adjusted according to the actual stirring requirements. The adjustment operation first requires loosening the clamping bolt 19. Loosening the clamping bolt 19 will move it away from the locking block 18, allowing the locking block 18 to freely separate from the locking tooth groove 15. Then, the adjusting ring 7 is rotated, causing it to rotate stably on the surface of the fixed ring 6 via the tapered bearing 14. The rotation of the adjusting ring 7 will drive the bottom ball head seat 11 to rotate, thus moving the ball head body 9. This movement of the ball head body 9 is transmitted through the connecting rod 12 and another... The ball head 9 drives the stirring blade 3 to move, causing the stirring blade 3 to move around the rotating shaft 2. This changes the tilt angle of the stirring blade 3, achieving the purpose of adjusting the tilt angle of the stirring blade 3. After the tilt angle of the stirring blade 3 is adjusted to the desired position, the reverse compression bolt 19 is used to reverse and compress the locking block 18, so that the locking block 18 stably engages with the locking tooth groove 15 to position the adjusting ring 7. Changing the tilt angle of the stirring blade 3 can change the flow field distribution of the upper and lower layers in the sewage, and can also change the shear force intensity of the stirring blade 3 on the sewage.

[0033] refer to Figure 1-5In this embodiment, a lever 20 is further fixed on the side of the adjusting ring 7. There are eight sets of levers 20, which are arranged in a circular array on the side of the fixed ring 6. When the adjusting ring 7 needs to be rotated, the lever 20 can be manually moved to drive the adjusting ring 7 to rotate. The lever 20 will also be driven to rotate when the adjusting ring 7 rotates with the stirring shaft 1. The rotation of the lever 20 further stirs the sewage.

[0034] refer to Figure 1-5 In this embodiment, considering that the length of the existing stirring blade 3 is difficult to adjust, resulting in a limited stirring range, a telescopic blade assembly 21 is provided on the side of the stirring blade 3. The telescopic blade assembly 21 includes a telescopic groove 22, a telescopic blade plate 23, and a positioning assembly 24. The telescopic groove 22 is opened on the side of the stirring blade 3 away from the stirring shaft 1. The telescopic blade plate 23 is movably connected to the inside of the telescopic groove 22. The positioning assembly 24 is disposed on the telescopic blade plate 23 and the stirring blade 3. The positioning assembly 24 includes a placement groove 25, a positioning tooth groove 26, a positioning tooth block 27, a limiting seat 28, and a positioning plate 29. The placement groove 25 is opened on the lower surface of the telescopic blade plate 23. The opening of the placement groove 25 faces downward and is designed with a chamfer at the opening. Figure 4 As shown, the purpose is to avoid internal accumulation of impurities. Secondly, even if impurities accumulate, they can fall off by gravity during subsequent rinsing. The positioning groove 26 is formed on the inner wall of the positioning groove. The positioning tooth block 27 is movably connected to the inside of the placement groove 25. The positioning tooth block 27 and the positioning groove 26 mesh with each other. The side of the limiting seat 28 is fixedly connected to the surface of the stirring blade 3. The limiting seat 28 is movably sleeved on the surface of the positioning plate 29. The end of the positioning plate 29 near the stirring shaft 1 is curved, so that it can block the surface of the limiting plate to fix the position. Position plate 29 limits the positioning, and the side of positioning tooth block 27 away from positioning tooth groove 26 abuts against the side of positioning plate 29 near telescopic blade plate 23. Guide grooves 30 are provided on both sides of positioning tooth block 27. A guide rod 31 is fixedly connected to the end face of stirring blade 3 near the guide groove 30. The guide rod 31 is movably connected inside the guide groove 30. The guide rod 31 limits and guides positioning tooth block 27, so that positioning tooth block 27 moves along guide rod 31 through guide groove 30, realizing the movement of positioning tooth block 27 towards and away from positioning tooth groove 26.

[0035] In specific operation, the positioning plate 29 needs to be moved first to separate it from the positioning tooth block 27. At this time, the positioning tooth block 27 moves freely on the guide rod 31 through the guide groove 30, and the positioning tooth block 27 and the positioning tooth groove 26 are loosened. Then, the telescopic blade 23 is moved to move out of the telescopic groove 22. Moving the telescopic blade 23 out will increase the length of the telescopic blade 23 and the stirring blade 3, thereby increasing the stirring range of the stirring blade 3 and enhancing the stirring efficiency. After the telescopic blade 23 is adjusted to a suitable position, it pushes the positioning plate 29 in the opposite direction, so that the side of the positioning plate 29 close to the positioning tooth groove 26 abuts against the surface of the positioning tooth block 27 to position the positioning tooth block 27. Then, the positioning tooth block 27 and the positioning tooth groove 26 are stably engaged to position the telescopic blade 23. Since one end of the positioning plate 29 is curved and positioned by the limiting seat 28, the stirring blade 3 will generate centrifugal force when the stirring shaft 1 rotates. The positioning plate 29 is stably blocked on the surface of the positioning tooth block 27 by the centrifugal force and is not easy to separate.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A variable frequency speed-regulating impeller for stirring wastewater for chemical dosing, characterized in that, It includes a stirring shaft (1), a rotating shaft (2) is rotatably connected to the side of the stirring shaft (1), and a stirring blade (3) is fixedly connected to the end face of the rotating shaft (2); A driving rod (4) is movably connected to the upper surface of the stirring blade (3) near the side. An adjustment component (5) is provided on the surface of the stirring shaft (1) above the driving rod (4). The end of the driving rod (4) away from the stirring blade is movably connected to the adjustment component (5). The adjustment assembly includes a fixed ring (6), an adjustment ring (7), and a locking member (8). The fixed ring (6) is fixedly sleeved on the surface of the stirring shaft (1), the adjustment ring (7) is rotatably sleeved on the surface of the fixed ring (6), the locking member (8) is located at the top of the adjustment ring (7), and the driving rod (4) is located at the bottom of the adjustment ring (7).

2. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 1, characterized in that, Each set of stirring blades (3) corresponds to a set of driving rods (4). Each set of driving rods (4) includes two ball heads (9), a ball head groove (10), a ball head seat (11), and a connecting rod (12). The two ball heads are fixedly connected to both ends of the connecting rod (12). The ball head groove (10) is opened on the upper surface of the stirring blade (3) near the side. The ball head seat (11) is set at the bottom of the rotating ring. One ball head (9) is movably connected inside the ball head groove (10), and the other ball head (9) is movably connected inside the ball head seat (11).

3. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 2, characterized in that, The fixed ring (6) has an annular groove (13) on its side, and a tapered bearing (14) is provided inside the annular groove (13). The adjusting ring (7) is fixedly sleeved on the surface of the tapered bearing (14).

4. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 3, characterized in that, The number of locking components (8) is two sets, and the two sets of locking components (8) are symmetrically arranged on the top of the adjusting ring (7). The locking component (8) includes a locking tooth groove (15), a threaded hole (16), a limiting groove (17), a locking block (18), and a pressing bolt (19). The locking tooth groove (15) is opened on the upper surface of the fixed ring (6). The threaded hole (16) is opened on the surface of the adjusting ring (7) and is located directly above the locking tooth groove (15). The limiting groove (17) is opened inside the threaded hole (16) and the limiting groove (17) connects the threaded hole (16) and the inner wall of the adjusting ring (7). The locking block (18) is movably connected inside the limiting groove (17). The locking block (18) and the locking tooth groove (15) mesh with each other. The pressing bolt (19) is threadedly connected inside the threaded hole (16). The bottom end of the pressing bolt (19) abuts against the top of the locking block (18).

5. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 4, characterized in that, The limiting groove (17) is a square groove, and the shape of the locking block (18) matches the shape of the limiting groove (17).

6. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 5, characterized in that, A lever (20) is fixed to the side of the adjusting ring (7).

7. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 6, characterized in that, The stirring blade (3) is provided with a telescopic blade assembly (21) on its side. The telescopic blade assembly (21) includes a telescopic groove (22), a telescopic blade plate (23), and a positioning component (24). The telescopic groove (22) is opened on the side of the stirring blade (3) away from the stirring shaft (1). The telescopic blade plate (23) is movably connected to the inside of the telescopic groove (22). The positioning component (24) is provided on the telescopic blade plate (23) and the stirring blade (3).

8. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 7, characterized in that, The positioning assembly (24) includes a placement groove (25), a positioning tooth groove (26), a positioning tooth block (27), a limiting seat (28), and a positioning plate (29). The placement groove (25) is opened on the lower surface of the telescopic blade (23). The positioning tooth groove (26) is opened on the inner wall of the positioning groove. The positioning tooth block (27) is movably connected to the inside of the placement groove (25). The positioning tooth block (27) and the positioning tooth groove (26) mesh with each other. The side of the limiting seat (28) is fixedly connected to the surface of the stirring blade (3). The limiting seat (28) is movably sleeved on the surface of the positioning plate (29). The side of the positioning tooth block (27) away from the positioning tooth groove (26) abuts against the side of the positioning plate (29) close to the telescopic blade (23).

9. The variable frequency speed-regulating impeller for wastewater dosing and stirring according to claim 8, characterized in that, The positioning tooth block (27) has guide grooves (30) on both sides, and a guide rod (31) is fixedly connected to the end face of the stirring blade (3) near the guide groove (30). The guide rod (31) is movably connected inside the guide groove (30).

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