Centrifugal impeller with adjustable diameter

Abstract

The invention belongs to the technical field of pump machine impellers, and discloses a centrifugal impeller with the adjustable diameter. Comprising a first sealing plate, a water inlet is fixedly connected to the center of the first sealing plate, an adjusting assembly is arranged, when the diameter of an impeller needs to be adjusted, a tool is inserted into a cross-shaped groove of a second round rod, the second round rod is rotated, a first gear, a short plate and the first round rod can be driven to rotate, and the second gear can be driven to rotate when the first gear rotates; the angle of the first arc-shaped groove can be changed, the first sliding rod is arranged on the inner wall of the first arc-shaped groove and the inner wall of the second arc-shaped groove, and therefore when the first arc-shaped groove rotates along with the second gear, the first sliding rod can be promoted to slide towards the outer end of the second arc-shaped groove, and the first sliding rod can drive the telescopic blade to slide when sliding. The diameter of the impeller can be adjusted according to requirements, the lengths of the blade columns and the telescopic blades can meet working requirements conveniently, and the problem that the diameter of an existing closed impeller cannot be adjusted according to requirements is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pump impellers, and more specifically, to a centrifugal impeller with adjustable diameter. Background Art

[0002] A centrifugal pump refers to a pump that transports liquids by the centrifugal force generated when the impeller rotates. Its working principle is that the motor drives the impeller to rotate at a high speed through the pump shaft, so that the liquid is thrown to the outer edge of the impeller under the action of centrifugal force, and flows into the pressure water pipeline of the water pump through the flow channel of the volute, thereby realizing the transportation of the liquid. The centrifugal impeller of the centrifugal pump is the main component for realizing the water flow transportation.

[0003] The impellers of centrifugal pumps mainly include three types, namely semi-open impellers, open impellers and closed impellers. Among them, the closed impeller is an impeller with closed plates arranged on both sides of the blades, and it is suitable for transporting liquids with less impurities.

[0004] In the prior art, the diameter of the closed impeller used in centrifugal pumps is usually fixed. Since the diameter of the impeller affects the flow rate of the centrifugal pump, when it is necessary to change the flow rate and head of the centrifugal pump, the water valve is usually adjusted. After the water valve is adjusted, the decrease in water flow will increase the impact force on the water valve, and changing the rotational speed easily causes the head of the fluid to change together, which is difficult to grasp. Therefore, it is difficult to adjust the flow rate and head of the pump according to requirements. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention proposes a centrifugal impeller with adjustable diameter.

[0006] To achieve the above object, the present invention provides the following technical solution: A centrifugal impeller with adjustable diameter, including a first sealing plate, an inlet is fixedly connected to the center of the first sealing plate, a blade column is fixedly connected to one side of the first sealing plate, a second sealing plate is fixedly connected to the side of the blade column away from the first sealing plate, an installation sleeve is fixedly connected to the center of the second sealing plate, and further includes an adjustment component for adjusting the length of the blades. The adjustment component is arranged on the inner wall of the first sealing plate. An installation groove is opened on one side of the inner wall of the first sealing plate, and a closing component for protecting the adjustment component from being disturbed is arranged on the inner wall of the installation groove. An erasing component for cleaning the sediment in the inlet is arranged on the inner wall of the inlet. A sliding groove is opened on the outer wall of the blade column, and a cleaning component for cleaning the dirt on the surface of the blade column is arranged on the inner wall of the sliding groove. A storage cavity is arranged on the inner wall of the second sealing plate, a cleaning agent is arranged on the inner wall of the storage cavity, a supply component for promoting the quantitative release of the cleaning agent is arranged on the inner wall of the storage cavity, and a vibration component for promoting the dirt on the surface of the cleaning component to fall off is arranged on the inner wall of the second sealing plate.

[0007] Further, the adjustment component includes a first round rod rotatably connected to one side of the inner wall of the first sealing plate. A short plate is fixedly connected to one side of the first round rod. A second round rod is slidably connected to the other side of the inner wall of the first sealing plate. A first gear is fixedly connected to one side of the second round rod. A cross slot is formed on the side of the second round rod away from the first gear. A slot is formed on the side of the first gear away from the second round rod. The first round rod and the short plate are inserted into the inner wall of the slot. A second gear is rotatably connected to the inner wall of the first sealing plate and meshes with one side of the first gear. A first arc-shaped slot is formed on one side of the second gear. A second arc-shaped slot is formed on the side of the first sealing plate close to the blade column. The second arc-shaped slot communicates with the inner wall of the blade column. A telescopic blade is slidably connected to the inner wall of the blade column. A first sliding rod is fixedly connected to one side of the telescopic blade. One side of the first sliding rod is slidably connected to the inner walls of the first arc-shaped slot and the second arc-shaped slot. A sealing sleeve is fixedly connected to the outer wall of the telescopic blade. The shapes of the blade column and the telescopic blade are both arc-shaped.

[0008] Further, the closing component includes a round plate fixedly connected to the outer wall of the first round rod. A first spring is fixedly connected to one side of the round plate. The other end of the first spring is fixedly connected to one side of the first gear. A cover plate is slidably connected to the inner wall of the installation groove. A first magnet is fixedly connected to the bottom of the cover plate. A second magnet is fixedly connected to the bottom of the inner wall of the installation groove. The first magnet is adsorbed on the top of the second magnet. A push block is fixedly connected to one side of the cover plate.

[0009] Further, the erasing component includes a connecting ring fixedly connected to one side of the second gear. An annular groove is formed on the inner wall of the water inlet. The connecting ring is rotatably connected to the inner wall of the annular groove. A mounting piece is fixedly connected to the inner wall of the connecting ring. A cleaning sponge is fixedly connected to the outer wall of the mounting piece. A placement groove is formed on the inner wall of the water inlet. The cleaning sponge is arranged in the inner wall of the placement groove.

[0010] Further, the cleaning component includes a top block fixedly connected to the top end of the telescopic blade. An arc-shaped plate is fixedly connected to one side of the top block. The arc-shaped plate is slidably connected to the inner wall of the chute. The arc-shaped plate and the top block are provided in two groups and are parallelly distributed on both sides of the telescopic blade. A first scraping blade is fixedly connected to one side of a group of the arc-shaped plates. A second scraping blade is fixedly connected to one side of the other group of the arc-shaped plates. Both the first scraping blade and the second scraping blade are attached to both sides of the blade column.

[0011] Further, the supply component includes a first storage box fixedly connected to the inner wall of the second sealing plate. A third arc-shaped groove is formed on the side of the second sealing plate close to the blade column. A second sliding rod is fixedly connected to the side of the telescopic blade away from the first sliding rod. The second sliding rod is slidably connected to the inner wall of the third arc-shaped groove. A second storage box is fixedly connected to the inner wall of the second sealing plate. A set of communication grooves is formed on one side of each of the first storage box and the second storage box. A set of first scraping blades is arranged on one side of the communication groove of the second storage box, and a set of second scraping blades is arranged on one side of the communication groove of the first storage box. The first storage box and the second storage box are connected to the inner wall of the storage cavity through two connecting pipes. A second spring is fixedly connected to one side of the inner wall of the storage cavity. A push plate is fixedly connected to one side of the second spring. A plurality of blocking blocks are fixedly connected to one side of the push plate. The plurality of blocking blocks are inserted into the inner walls of the plurality of connecting pipes. A circular opening is formed on one side of the storage cavity. A closing plate is fixedly connected to one side of the push plate. The closing plate is arranged on the inner wall of the circular opening.

[0012] Further, the vibration component includes a side plate fixedly connected to the inner wall of the second sealing plate. A third spring is fixedly connected to the inner wall of the side plate. A long plate is fixedly connected to one side of the third spring. The long plate is arranged on one side of the second sliding rod. A plurality of convex blocks are fixedly connected to one side of the long plate. The shape of the convex blocks is arc-shaped.

[0013] Technical effects and advantages of the centrifugal impeller with adjustable diameter of the present invention:

[0014] (1) By providing an adjustment component, when it is necessary to adjust the diameter of the impeller, a tool can be inserted into the cross groove of the second round rod and the second round rod can be rotated, which can drive the first gear, the short plate and the first round rod to rotate. When the first gear rotates, it will drive the second gear to rotate, which can change the angle of the first arc-shaped groove. Since the first sliding rod is arranged on the inner walls of the first arc-shaped groove and the second arc-shaped groove, when the first arc-shaped groove rotates with the second gear, it will cause the first sliding rod to slide towards the outer end of the second arc-shaped groove. When the first sliding rod slides, it will drive the telescopic blade to slide, and the diameter of the impeller can be adjusted according to requirements, which is convenient for making the lengths of the blade column and the telescopic blade suitable for the working requirements, and solves the problem that the existing closed impeller cannot adjust the diameter according to requirements.

[0015] (2) By providing an erasing component, when the second gear rotates, it can drive the connecting ring, the mounting piece and the cleaning sponge to rotate, so as to clean the sediment in the water inlet. By providing a cleaning component, when the telescopic blade moves, it can drive the top block, the arc-shaped plate, the first scraping blade and the second scraping blade to move, and the scale on the surface of the blade column can be scraped off by the first scraping blade and the second scraping blade. By providing a supply component, a cleaning agent can be provided for the surface of the blade column, which is more conducive to cleaning the surface of the blade column. By providing a vibration component, it is beneficial to make the scale remaining on the first scraping blade and the second scraping blade vibrate and fall off. Brief Description of the Drawings

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

[0017] Figure 2 This is a sectional view of one side of the first sealing plate in the present invention.

[0018] Figure 3 This is a schematic diagram of the sectional structure of the blade column in the present invention.

[0019] Figure 4 This is a schematic diagram of the telescopic blade in the present invention.

[0020] Figure 5 This is a schematic diagram of the overall top structure in the present invention.

[0021] Figure 6 is Figure 5 an enlarged schematic diagram of part A of

[0022] Figure 7 This is a structural diagram around the first gear in the present invention.

[0023] Figure 8 This is a schematic diagram of the cover plate structure in the present invention.

[0024] Figure 9 This is a schematic diagram of the erasing component in the present invention.

[0025] Figure 10 This is a sectional schematic diagram of the second sealing plate in the present invention.

[0026] Figure 11 is Figure 10 an enlarged schematic diagram of part B of

[0027] Figure 12 This is a sectional structure diagram of one side of the whole in the present invention.

[0028] Figure 13 is Figure 12 an enlarged schematic diagram of part C of

[0029] Figure 14 This is a structural diagram of one side of the push plate in the present invention.

[0030] Figure 15 This is a structural diagram of the other side of the push plate in the present invention.

[0031] Figure 16 This is a schematic diagram of the telescopic blade after adjustment in the present invention.

[0032] In the figure:

[0033] 1. First sealing plate; 2. Water inlet; 3. Blade column; 4. Second sealing plate; 5. Installation sleeve; 6. First round rod; 7. Short plate; 8. First gear; 9. Second round rod; 10. Second gear; 11. First arc groove; 12. Second arc groove; 13. Telescopic blade; 14. First slide bar; 15. Second slide bar; 16. Installation groove; 17. Round plate; 18. First spring; 19. Cover plate; 20. Push block; 21. First magnet; 22. Second magnet; 23. Connecting ring; 24. Installation piece; 25. Cleaning sponge; 26. Top block; 27. Arc plate; 28. First scraping blade; 29. Second scraping blade; 30. First storage box; 31. Communication groove; 32. Second storage box; 33. Third arc groove; 34. Storage cavity; 35. Second spring; 36. Push plate; 37. Closing plate; 38. Plug block; 39. Side plate; 40. Third spring; 41. Long plate; 42. Convex block. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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.

[0035] Embodiment 1

[0036] Refer to Figure 1-16 , a centrifugal impeller with adjustable diameter, including a first sealing plate 1, a water inlet 2 is fixedly connected to the center of the first sealing plate 1, a blade column 3 is fixedly connected to one side of the first sealing plate 1, a second sealing plate 4 is fixedly connected to the side of the blade column 3 away from the first sealing plate 1, an installation sleeve 5 is fixedly connected to the center of the second sealing plate 4, and an adjustment component for adjusting the blade length is further included. The adjustment component is arranged on the inner wall of the first sealing plate 1. An installation groove 16 is opened on one side of the inner wall of the first sealing plate 1, and a closing component for protecting the adjustment component from interference is arranged on the inner wall of the installation groove 16. A wiping component for cleaning the sediment in the water inlet 2 is arranged on the inner wall of the water inlet 2. A chute is opened on the outer wall of the blade column 3, and a cleaning component for cleaning the dirt on the surface of the blade column 3 is arranged on the inner wall of the chute. A storage cavity 34 is arranged on the inner wall of the second sealing plate 4, a cleaning agent is arranged on the inner wall of the storage cavity 34, and a supply component for promoting the quantitative release of the cleaning agent is arranged on the inner wall of the storage cavity 34. A vibration component for promoting the dirt on the surface of the cleaning component to fall off is arranged on the inner wall of the second sealing plate 4.

[0037] To solve the problem that the existing closed impeller cannot adjust its diameter according to requirements, when the impeller needs to be used, the mounting sleeve 5 of the second seal plate 4 can be installed on the rotating shaft of the pump machine, and then the pump machine can be installed at a specified location. When the pump machine drives the rotating shaft to rotate, it can drive the impeller to rotate, allowing water to enter between the first seal plate 1 and the second seal plate 4 through the water inlet 2. Under the guidance of the blade column 3, the liquid can be transported in a specified direction. When the diameter of the impeller needs to be adjusted, the closing component can be opened first, which facilitates the operation of the adjustment component. By setting the adjustment component, the length of the guidance of the blade column 3 can be extended, so that it can be adjusted according to different requirements. When adjusting the blade length, by setting the erasing component, the impurities deposited in the water inlet 2 can be erased. By setting the cleaning component, the scale on the surface of the blade column 3 can be scraped and cleaned. By setting the supply component, when the cleaning component operates, it can drive the supply component to operate to add a cleaning agent around the blade column 3, thereby promoting the removal of scale. By setting the vibration component, it is beneficial to shake off the remaining scale on the surface of the cleaning component.

[0038] Referring to Figure 2-7 , the adjustment component includes a first round rod 6, the first round rod 6 is rotatably connected to one side of the inner wall of the first seal plate 1, a short plate 7 is fixedly connected to one side of the first round rod 6, a second round rod 9 is slidably connected to the other side of the inner wall of the first seal plate 1, a first gear 8 is fixedly connected to one side of the second round rod 9, a cross slot is opened on the side of the second round rod 9 away from the first gear 8, a slot is opened on the side of the first gear 8 away from the second round rod 9, the first round rod 6 and the short plate 7 are inserted into the inner wall of the slot, a second gear 10 is rotatably connected to the inner wall of the first seal plate 1, the second gear 10 meshes with one side of the first gear 8, a first arc-shaped groove 11 is opened on one side of the second gear 10, a second arc-shaped groove 12 is opened on the side of the first seal plate 1 close to the blade column 3, the second arc-shaped groove 12 communicates with the inner wall of the blade column 3, a telescopic blade 13 is slidably connected to the inner wall of the blade column 3, a first sliding rod 14 is fixedly connected to one side of the telescopic blade 13, one side of the first sliding rod 14 is slidably connected to the inner walls of the first arc-shaped groove 11 and the second arc-shaped groove 12, a sealing sleeve is fixedly connected to the outer wall of the telescopic blade 13, and the shapes of the blade column 3 and the telescopic blade 13 are both arc-shaped.

[0039] When it is necessary to adjust the diameter of the impeller, a tool can be inserted into the cross groove of the second round rod 9 and the second round rod 9 can be rotated. When the second round rod 9 is rotated, it can drive the first gear 8 on one side to rotate. When the first gear 8 rotates, it will drive the short board 7 and the first round rod 6 on one side to rotate together. Since the second gear 10 is engaged on one side of the first gear 8, when the first gear 8 rotates, it will drive the second gear 10 on one side to rotate. When the second gear 10 rotates, the first arc groove 11 provided on one side thereof will change the angle. Since the first sliding rod 14 is arranged on the inner walls of the first arc groove 11 and the second arc groove 12, when the first arc groove 11 rotates with the second gear 10, it will cause the first sliding rod 14 to slide towards the outer end of the second arc groove 12. When the first sliding rod 14 slides, it will drive the telescopic blade 13 to slide on the inner wall of the blade column 3. When multiple telescopic blades 13 slide simultaneously, the diameter of the impeller can be adjusted according to requirements, so as to make the lengths of the blade column 3 and the telescopic blades 13 suitable for the working requirements. By providing a sealing sleeve on the outer wall of the telescopic blade 13, liquid can be prevented from entering the inner wall of the blade column 3.

[0040] Refer to Figure 5-8 As shown, the closing assembly includes a round plate 17, the round plate 17 is fixedly connected to the outer wall of the first round rod 6, one side of the round plate 17 is fixedly connected to a first spring 18, the other end of the first spring 18 is fixedly connected to one side of the first gear 8, a cover plate 19 is slidably connected to the inner wall of the installation groove 16, a first magnet 21 is fixedly connected to the bottom of the cover plate 19, a second magnet 22 is fixedly connected to the bottom of the inner wall of the installation groove 16, the first magnet 21 is adsorbed on the top of the second magnet 22, and a push block 20 is fixedly connected to one side of the cover plate 19.

[0041] When it is necessary to adjust the diameter of the impeller, the push block 20 can be pushed to drive the cover plate 19 to slide upward together. When the cover plate 19 slides in the installation groove 16, it will cause the first magnet 21 provided at its bottom to move away from the top of the second magnet 22, and the second round rod 9 can be exposed. At this time, the first spring 18 will push the first gear 8 and the second round rod 9 to move to one side, so that the second round rod 9 extends out of the installation groove 16, thereby facilitating the rotation of the second round rod 9 and the first gear 8. At this time, the first gear 8 is still engaged with the second gear 10. After the position is adjusted, the second round rod 9 and the first gear 8 can be pushed towards the inner wall of the first sealing plate 1, and then the cover plate 19 can be slid downward until the first magnet 21 at the bottom of the cover plate 19 moves to the top of the second magnet 22. The first magnet 21 can be firmly adsorbed by the second magnet 22, so that the position of the first gear 8 can be fixed.

[0042] Refer to Figure 9, the erasing component includes a connecting ring 23 which is fixedly connected to one side of the second gear 10. An annular groove is formed in the inner wall of the water inlet 2, and the connecting ring 23 is rotatably connected to the inner wall of the annular groove. An installation piece 24 is fixedly connected to the inner wall of the connecting ring 23, a cleaning sponge 25 is fixedly connected to the outer wall of the installation piece 24, a placement groove is formed in the inner wall of the water inlet 2, and the cleaning sponge 25 is arranged in the inner wall of the placement groove.

[0043] When the second gear 10 rotates, it will drive the connecting ring 23 on one side to rotate in the annular groove. When the connecting ring 23 rotates, it will drive the installation piece 24 and the cleaning sponge 25 on the inner wall to rotate together, so that the cleaning sponge 25 is moved out of the placement groove, and at the same time, multiple groups of cleaning sponges 25 are rotated while being attached to the inner wall of the water inlet 2. When multiple groups of cleaning sponges 25 rotate, the passing positions will be cleaned, so that the sediment on the inner wall of the water inlet 2 can be cleaned to prevent the sediment from accumulating on the inner wall of the water inlet 2 for a long time.

[0044] Refer to Figure 3-4 , the cleaning component includes a top block 26, the top of which is fixedly connected to the top of the telescopic blade 13. An arc-shaped plate 27 is fixedly connected to one side of the top block 26, and the arc-shaped plate 27 is slidably connected to the inner wall of the chute. There are two groups of the arc-shaped plate 27 and the top block 26, and they are arranged in parallel on both sides of the telescopic blade 13. A first scraping blade 28 is fixedly connected to one side of a group of the arc-shaped plates 27, and a second scraping blade 29 is fixedly connected to one side of the other group of the arc-shaped plates 27. Both the first scraping blade 28 and the second scraping blade 29 are attached to both sides of the blade column 3.

[0045] When the telescopic blade 13 slides, it will drive the top block 26 on one side to slide together. When the top block 26 slides, it will drive the two groups of arc-shaped plates 27 to slide together. Since the first scraping blade 28 and the second scraping blade 29 are respectively arranged on the two groups of arc-shaped plates 27, the first scraping blade 28 and the second scraping blade 29 will also slide accordingly. Since the first scraping blade 28 and the second scraping blade 29 are arranged on the outer wall of the blade column 3, the scale accumulated on the surface of the blade column 3 can be scraped off when the first scraping blade 28 and the second scraping blade 29 slide, so that the outer wall of the blade column 3 can be cleaned to prevent the scale on the surface of the blade column 3 from thickening day by day. The surface of the blade column 3 after cleaning is more conducive to the transmission of liquid.

[0046] Refer to Figure 10-15, the supply component includes a first storage box 30, which is fixedly connected to the inner wall of the second sealing plate 4. A third arc-shaped groove 33 is formed on the side of the second sealing plate 4 close to the blade column 3. A second slide bar 15 is fixedly connected to the side of the telescopic blade 13 away from the first slide bar 14. The second slide bar 15 is slidably connected to the inner wall of the third arc-shaped groove 33. A second storage box 32 is fixedly connected to the inner wall of the second sealing plate 4. A set of communication grooves 31 are formed on one side of both the first storage box 30 and the second storage box 32. A set of first scraping blades 28 are arranged on one side of the communication groove 31 of the second storage box 32. A set of second scraping blades 29 are arranged on one side of the communication groove 31 of the first storage box 30. The first storage box 30 and the second storage box 32 are connected to the inner wall of the storage cavity 34 through two connecting pipes. A second spring 35 is fixedly connected to one side of the inner wall of the storage cavity 34. A push plate 36 is fixedly connected to one side of the second spring 35. A plurality of blocking blocks 38 are fixedly connected to one side of the push plate 36. The plurality of blocking blocks 38 are inserted into the inner walls of the plurality of connecting pipes. A round opening is formed on one side of the storage cavity 34. A closing plate 37 is fixedly connected to one side of the push plate 36. The closing plate 37 is arranged on the inner wall of the round opening.

[0047] When the first scraping blade 28 and the second scraping blade 29 move, they will move away from one side of the two communication grooves 31. Due to the movement of the first scraping blade 28 and the second scraping blade 29, the cleaning agent in the first storage box 30 and the second storage box 32 can flow out through the two communication grooves 31 and flow to the surface of the blade column 3. When the first scraping blade 28 and the second scraping blade 29 clean the surface of the blade column 3, it is beneficial to soften the scale on the outer wall of the blade column 3 through the cleaning agent. When it is necessary to overhaul the impeller, the closing plate 37 can be pulled to one side. When the closing plate 37 is pulled, it will drive the push plate 36 to move to one side together, and at the same time compress the second spring 35. A plurality of blocking blocks 38 arranged on one side of the push plate 36 will also move to one side with the push plate 36, so that the plurality of blocking blocks 38 are removed from the inner walls of the plurality of connecting pipes. The cleaning agent in the storage cavity 34 will flow into the connecting pipes and flow into the first storage box 30 and the second storage box 32 through the connecting pipes, which can quantitatively add the cleaning agent. At the same time, when the closing plate 37 is pulled open, the cleaning agent can also be added through the round opening. After releasing the round opening, the second spring 35 will push the push plate 36 and the closing plate 37 to reset. When the closing plate 37 resets, it can close the round opening. When the push plate 36 resets, it can insert the plurality of blocking blocks 38 into the plurality of connecting pipes at the same time, so that the first storage box 30 and the second storage box 32 store a fixed amount of cleaning agent.

[0048] Refer to Figure 11, the vibration assembly includes a side plate 39, the side plate 39 is fixedly connected to the inner wall of the second sealing plate 4, a third spring 40 is fixedly connected to the inner wall of the side plate 39, a long plate 41 is fixedly connected to one side of the third spring 40, the long plate 41 is arranged on one side of the second sliding rod 15, a plurality of groups of convex blocks 42 are fixedly connected to one side of the long plate 41, and the shape of the convex blocks 42 is arc-shaped.

[0049] When the telescopic blade 13 slides to one side, it will drive the second sliding rod 15 arranged on one side to slide. When the second sliding rod 15 slides, it will pass by one side of the long plate 41. When the second sliding rod 15 passes by the convex block 42 on one side of the long plate 41, it will push the long plate 41 and the convex block 42 towards the inner wall of the side plate 39 and compress the third spring 40. When the second sliding rod 15 passes by a set of push blocks 20, the reset of the third spring 40 will push the long plate 41 and the convex block 42 to reset together, and make the long plate 41 hit the second sliding rod 15, causing the second sliding rod 15 to vibrate. The vibration on the second sliding rod 15 will be transmitted to the telescopic blade 13, the arc-shaped plate 27, the first scraping blade 28 and the second scraping blade 29, and the accumulated dirt remaining on the first scraping blade 28 and the second scraping blade 29 can be made to fall off by slight vibration.

[0050] Working principle: To solve the problem that the existing closed impeller cannot adjust its diameter according to requirements, when the impeller is needed, the mounting sleeve 5 of the second sealing plate 4 can be installed on the rotating shaft of the pump, and then the pump is installed at the designated location. When the pump drives the rotating shaft to rotate, it can drive the impeller to rotate, so that water flows into the space between the first sealing plate 1 and the second sealing plate 4 through the water inlet 2, and through the guidance of the blade column 3, the liquid can be conveyed in a specified direction. When it is necessary to adjust the diameter of the impeller, the push block 20 can be pushed, so that the push block 20 drives the cover plate 19 to slide upward together. When the cover plate 19 slides in the mounting groove 16, the first magnet 21 arranged at its bottom will be separated from the top of the second magnet 22, and the second round rod 9 can be exposed. At this time, the first spring 18 will push the first gear 8 and the second round rod 9 to move to one side, so that the second round rod 9 extends out of the mounting groove 16, thus facilitating the rotation of the second round rod 9 and the first gear 8. At this time, the first gear 8 still meshes with the second gear 10. A tool can be inserted into the cross groove of the second round rod 9 and the second round rod 9 can be rotated. When the second round rod 9 is rotated, it can drive the first gear 8 on one side to rotate, and when the first gear 8 rotates, it will drive the short plate 7 and the first round rod 6 on one side to rotate together. Since the second gear 10 meshes on one side of the first gear 8, when the first gear 8 rotates, it will drive the second gear 10 on one side to rotate. When the second gear 10 rotates, the first arc groove 11 arranged on one side will change its angle. Since the first sliding rod 14 is arranged on the inner walls of the first arc groove 11 and the second arc groove 12, when the first arc groove 11 rotates with the second gear 10, it will cause the first sliding rod 14 to slide towards the outer end of the second arc groove 12. When the first sliding rod 14 slides, it will drive the telescopic blades 13 to slide on the inner wall of the blade column 3. When multiple telescopic blades 13 slide simultaneously, the diameter of the impeller can be adjusted according to requirements, so that the lengths of the blade column 3 and the telescopic blades 13 are suitable for the working requirements. By setting a sealing sleeve on the outer wall of the telescopic blades 13, liquid can be prevented from entering the inner wall of the blade column 3. When the second gear 10 rotates, it will drive the connecting ring 23 to rotate in the annular groove. When the connecting ring 23 rotates, it will drive the mounting piece 24 and the cleaning sponge 25 on the inner wall to rotate together, so that the cleaning sponge 25 moves out of the placement groove, and at the same time, multiple cleaning sponges 25 rotate along the inner wall of the water inlet 2. When multiple cleaning sponges 25 rotate, the positions they pass through will be cleaned, so that the sediment on the inner wall of the water inlet 2 can be cleaned;

[0051] When the telescopic blade 13 slides, it will drive the top block 26 on one side to slide together. When the top block 26 slides, it will drive the two sets of arc-shaped plates 27 to slide together. Since the first scraping blade 28 and the second scraping blade 29 are respectively arranged on the two sets of arc-shaped plates 27, the first scraping blade 28 and the second scraping blade 29 will also slide accordingly. Since the first scraping blade 28 and the second scraping blade 29 are arranged on the outer wall of the blade column 3, the first scraping blade 28 and the second scraping blade 29 can scrape off the scale accumulated on the surface area of the blade column 3 when sliding, thereby cleaning the outer wall of the blade column 3 and preventing the scale on the surface of the blade column 3 from thickening over time. The surface of the cleaned blade column 3 is more conducive to the transmission of liquid. When the first scraping blade 28 and the second scraping blade 29 move, they will move away from one side of the two communicating grooves 31. Due to the movement of the first scraping blade 28 and the second scraping blade 29, the cleaning agent in the first storage box 30 and the second storage box 32 can flow out through the two communicating grooves 31 and flow to the surface of the blade column 3, which is beneficial to softening the scale on the outer wall of the blade column 3 by the cleaning agent when the first scraping blade 28 and the second scraping blade 29 clean the surface of the blade column 3. When it is necessary to overhaul the impeller, the closing plate 37 can be pulled to one side. When the closing plate 37 is pulled, it will drive the push plate 36 to move to one side together, and at the same time compress the second spring 35. The multiple blocking blocks 38 arranged on one side of the push plate 36 will also move to one side along with the push plate 36, so that the multiple blocking blocks 38 move out of the inner walls of the multiple connecting pipes. The cleaning agent in the storage cavity 34 will flow into the connecting pipes and flow into the first storage box 30 and the second storage box 32 through the connecting pipes, which can add the cleaning agent quantitatively. At the same time, when the closing plate 37 is pulled open, the cleaning agent can also be added through the round opening. After releasing the round opening, the second spring 35 will push the push plate 36 and the closing plate 37 to reset. When the closing plate 37 resets, it can close the round opening, and when the push plate 36 resets, it can insert the multiple blocking blocks 38 into the multiple connecting pipes at the same time, so that the first storage box 30 and the second storage box 32 store a certain amount of cleaning agent. When the telescopic blade 13 slides to one side, it will drive the second sliding rod 15 arranged on one side to slide. When the second sliding rod 15 slides, it will pass by one side of the long plate 41. When the second sliding rod 15 passes by the convex block 42 on one side of the long plate 41, it will push the long plate 41 and the convex block 42 towards the inner wall of the side plate 39 and compress the third spring 40. When the second sliding rod 15 passes by a set of push blocks 20, the reset of the third spring 40 will push the long plate 41 and the convex block 42 to reset together, and make the long plate 41 hit the second sliding rod 15, causing the second sliding rod 15 to vibrate. The vibration on the second sliding rod 15 will be transmitted to the telescopic blade 13, the arc-shaped plate 27, the first scraping blade 28 and the second scraping blade 29, and the remaining scale on the first scraping blade 28 and the second scraping blade 29 can be dropped by slight vibration. After adjusting the position, the second round rod 9 and the first gear 8 can be pushed towards the inner wall of the first sealing plate 1, and then the cover plate 19 can be slid downward until the first magnet 21 at the bottom of the cover plate 19 moves to the top of the second magnet 22.The first magnet 21 can be firmly adsorbed by the second magnet 22, so that the position of the first gear 8 can be fixed.

[0052] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A centrifugal impeller with adjustable diameter, comprising a first sealing plate (1), a water inlet (2) fixedly connected at the center of the first sealing plate (1), a blade column (3) fixedly connected to one side of the first sealing plate (1), a second sealing plate (4) fixedly connected to the side of the blade column (3) away from the first sealing plate (1), a mounting sleeve (5) fixedly connected to the center of the second sealing plate (4), characterized in that: It also includes an adjustment component for adjusting the blade length, the adjustment component is arranged on the inner wall of the first sealing plate (1), a mounting groove (16) is provided on one side of the inner wall of the first sealing plate (1), the inner wall of the mounting groove (16) is provided with a closing component for protecting the adjustment component from interference, the inner wall of the water inlet (2) is provided with a wiping component for cleaning sediments in the water inlet (2), the outer wall of the blade column (3) is provided with a slide groove, the inner wall of the slide groove is provided with a cleaning component for cleaning scale on the surface of the blade column (3), the inner wall of the second sealing plate (4) is provided with a storage chamber (34), the inner wall of the storage chamber (34) is provided with a detergent, the inner wall of the storage chamber (34) is provided with a supply component for prompting the quantitative release of the detergent, and the inner wall of the second sealing plate (4) is provided with a vibration component for prompting scale on the surface of the cleaning component to fall off.

2. A centrifugal impeller with adjustable diameter according to claim 1, characterized in that: The adjustment assembly comprises a first round rod (6), the first round rod (6) being rotatably connected to one side of the inner wall of the first sealing plate (1), a short plate (7) being fixedly connected to one side of the first round rod (6), a second round rod (9) being slidably connected to the other side of the inner wall of the first sealing plate (1), a first gear (8) being fixedly connected to one side of the second round rod (9), a cross groove being provided on the side of the second round rod (9) away from the first gear (8), a slot being provided on the side of the first gear (8) away from the second round rod (9), the first round rod (6) and the short plate (7) being plugged into the inner wall of the slot, the inner wall of the first sealing plate (1) being rotatably connected to the second gear (10), the second gear (10) being meshed with the second gear (10) A first arc groove (11) is provided on one side of the first gear (8) and one side of the second gear (10); a second arc groove (12) is provided on one side of the first sealing plate (1) close to the blade column (3); the second arc groove (12) is communicated with the inner wall of the blade column (3); a telescopic blade (13) is slidably connected to the inner wall of the blade column (3); a first sliding rod (14) is fixedly connected to one side of the telescopic blade (13); one side of the first sliding rod (14) is slidably connected to the inner walls of the first arc groove (11) and the second arc groove (12); a sealing sleeve is fixedly connected to the outer wall of the telescopic blade (13); and the blade column (3) and the telescopic blade (13) are both arc-shaped.

3. A centrifugal impeller with adjustable diameter according to claim 2, characterized in that: The closing component comprises a circular plate (17), the circular plate (17) being fixedly connected to the outer wall of the first round rod (6), a first spring (18) being fixedly connected to one side of the circular plate (17), the other end of the first spring (18) being fixedly connected to one side of the first gear (8), a cover plate (19) being slidably connected to the inner wall of the mounting groove (16), a first magnet (21) being fixedly connected to the bottom of the cover plate (19), a second magnet (22) being fixedly connected to the bottom of the inner wall of the mounting groove (16), the first magnet (21) being adsorbed on the top end of the second magnet (22), and a push block (20) being fixedly connected to one side of the cover plate (19).

4. A centrifugal impeller with adjustable diameter according to claim 3, characterized in that: The erasing assembly comprises a connecting ring (23), the connecting ring (23) is fixedly connected to one side of the second gear (10), the inner wall of the water inlet (2) is provided with an annular groove, the connecting ring (23) is rotatably connected to the inner wall of the annular groove, the inner wall of the connecting ring (23) is fixedly connected with a mounting plate (24), the outer wall of the mounting plate (24) is fixedly connected with a cleaning sponge (25), the inner wall of the water inlet (2) is provided with a placement groove, and the cleaning sponge (25) is arranged on the inner wall of the placement groove.

5. A centrifugal impeller with adjustable diameter according to claim 4, characterized in that: The cleaning component comprises a top block (26), the top end of which is fixedly connected to the top end of the telescopic blade (13), one side of the top block (26) is fixedly connected to an arc plate (27), the arc plate (27) is slidably connected to the inner wall of the slide groove, two groups of the arc plates (27) and the top block (26) are provided and are parallelly distributed on both sides of the telescopic blade (13), one side of the arc plates (27) of one group is fixedly connected to a first scraper (28), and one side of the arc plates (27) of the other group is fixedly connected to a second scraper (29), and the first scraper (28) and the second scraper (29) are both attached to both sides of the blade column (3).

6. A centrifugal impeller with adjustable diameter according to claim 5, characterized in that: The supply assembly comprises a first storage box (30), the first storage box (30) is fixedly connected to the inner wall of the second sealing plate (4), a third arc-shaped groove (33) is provided on the side of the second sealing plate (4) close to the blade column (3), a second slide bar (15) is fixedly connected to the side of the telescopic blade (13) away from the first slide bar (14), the second slide bar (15) is slidably connected to the inner wall of the third arc-shaped groove (33), a second storage box (32) is fixedly connected to the inner wall of the second sealing plate (4), a group of connecting grooves (31) are provided on one side of the first storage box (30) and the second storage box (32), and a group of the first scrapers (28) are arranged in the connecting grooves (31) of the second storage box (32) On one side, a group of the second scrapers (29) are arranged on one side of the connecting groove (31) of the first storage box (30); the first storage box (30) and the second storage box (32) are connected to the inner wall of the storage cavity (34) through two groups of connecting pipes; a second spring (35) is fixedly connected to one side of the inner wall of the storage cavity (34); a push plate (36) is fixedly connected to one side of the second spring (35); a plurality of blocks (38) are fixedly connected to one side of the push plate (36); the plurality of blocks (38) are plugged into the inner walls of the plurality of connecting pipes; a circular opening is opened on one side of the storage cavity (34); a closing plate (37) is fixedly connected to one side of the push plate (36); the closing plate (37) is arranged on the inner wall of the circular opening.

7. A centrifugal impeller with adjustable diameter according to claim 6, characterized in that: The vibration assembly includes a side plate (39), the side plate (39) is fixedly connected to the inner wall of the second sealing plate (4), the inner wall of the side plate (39) is fixedly connected to a third spring (40), one side of the third spring (40) is fixedly connected to a long plate (41), the long plate (41) is arranged on one side of the second sliding rod (15), and one side of the long plate (41) is fixedly connected to multiple groups of protrusions (42), and the shape of the protrusions (42) is arc-shaped.

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