Anti-cavitation impeller assembly of a water pump

Abstract

This utility model relates to the field of impeller technology and provides an anti-cavitation impeller assembly for a water pump, including an impeller fixing cylinder: a sleeve is fitted on one side of the impeller fixing cylinder, a fan blade is fixedly connected to the outside of the impeller fixing cylinder, and an impact-resistant protective plate is fixedly connected to the outside of the sleeve. The sleeve is inserted into the outside of the impeller fixing cylinder, and the front of the impact-resistant protective plate overlaps with the position of the fan blade. By fixing the sleeve to the outside of the impeller fixing cylinder, the impact-resistant protective plate overlaps with the fan blade, thereby protecting the surface of the fan blade. The auxiliary stabilizing mechanisms on both sides can maintain the stability between the impact-resistant protective plate and the fan blade to avoid collision, thereby protecting the surface of the fan blade and reducing cavitation impact.

Description

Technical Field

[0001] This utility model belongs to the field of impeller technology, and in particular relates to an anti-cavitation impeller assembly for a water pump. Background Technology

[0002] Impellers are key components in rotating machinery. Their core function is to convert the mechanical energy of a prime mover (such as an electric motor or turbine) into the kinetic and pressure energy of a fluid through rotation, thereby achieving fluid transport or pressurization. Depending on the application, impellers can be divided into two categories: impulse turbine impellers and pump / compressor impellers.

[0003] Chinese patent CN210196034U discloses an anti-sand and anti-cavitation impeller and a submersible pump. The patent describes an "anti-sand and anti-cavitation impeller, comprising a hub and a plurality of blades mounted on the hub, characterized in that each blade is fitted with a rubber sleeve. By fitting the rubber sleeve onto the blade, the elasticity of the rubber ensures a tight fit to the blade surface. The high wear resistance and anti-bubble bursting properties of the rubber material enhance the blade's anti-sand and anti-cavitation capabilities, thereby improving the impeller's anti-sand and anti-cavitation performance."

[0004] However, existing technologies can only provide protection through rubber materials. Due to the diverse internal environment of water pumps and the easy wear of rubber, some water pump impellers are prone to cavitation impact and wear during the process of using rubber protection. They need to be replaced frequently, which is inconvenient to use and has great limitations. Therefore, it is necessary to design an anti-cavitation impeller assembly for water pumps. Utility Model Content

[0005] This utility model provides an anti-cavitation impeller assembly for a water pump, aiming to solve the problem that, due to the diverse internal environment of water pumps and the easy wear of rubber, some water pump impellers are easily subjected to cavitation impact and wear during the use of rubber protection, requiring frequent replacement, which is inconvenient to use and has great limitations.

[0006] This utility model is implemented as follows: an anti-cavitation impeller assembly for a water pump includes an impeller fixing cylinder. A sleeve is fitted onto one side of the impeller fixing cylinder. A fan blade is fixedly connected to the outside of the impeller fixing cylinder. An impact-resistant protective plate is fixedly connected to the outside of the sleeve. The sleeve is inserted into the outside of the impeller fixing cylinder. The front of the impact-resistant protective plate overlaps with the fan blade. A self-cleaning mechanism is provided between the impact-resistant protective plate and the fan blade. Auxiliary stabilizing mechanisms are provided between the impact-resistant protective plate and both sides of the fan blade. The impact-resistant protective plate is located away from the fan blade. A positioning mechanism is provided between the sleeve and the impeller fixing cylinder. By fixing the sleeve to the outside of the impeller fixing cylinder, the impact-resistant protective plate overlaps with the fan blade, thereby protecting the surface of the fan blade. The auxiliary stabilizing mechanisms on both sides maintain the stability between the impact-resistant protective plate and the fan blade to avoid collisions, thus protecting the surface of the fan blade and reducing cavitation impact.

[0007] Preferably, the impeller fixing cylinder has a slot on its outside that is adapted to fit the insert cylinder, the number of fan blades and impact-resistant protective plates are equal, and the impact-resistant protective plates overlap with each other in the projected position on the front.

[0008] Preferably, the self-cleaning mechanism includes a fixed plate, a T-shaped groove, a T-shaped block, and a brush body. The fixed plate is fixedly connected to one side of the impact-resistant protective plate. The fixed plate has a T-shaped groove inside. The T-shaped block is slidably connected inside the T-shaped groove. The brush body is fixedly connected to the side of the T-shaped block outside the T-shaped groove. The centrifugal force generated during the impeller rotation can cause the T-shaped block to slide inside the T-shaped groove, thereby enabling the brush body to naturally wipe the surface of the fan blades and remove cavitation residue.

[0009] Preferably, the brush body's bristles are adapted to slide in contact with the front of the fan blade, the fixing plate is fixed to the middle of one side of the impact-resistant protective plate, and the T-shaped block is restricted to sliding inside the T-shaped groove.

[0010] Preferably, the insertion positions of the insert and the impeller fixing cylinder are fitted together, the insert and the impact-resistant protective plate are an integral structure, and the impeller fixing cylinder and the fan blade are an integral structure.

[0011] Preferably, the auxiliary stabilizing mechanism includes a hinge, a connecting plate, an insert plate, and a strong magnet. Both sides of the impact-resistant protective plate are rotatably connected to the connecting plate, the other end of the connecting plate is fixedly connected to the insert plate, and the other end of the insert plate is fixedly connected to the strong magnet. The strong magnet and the insert plate are inserted into the inside of the fan blade.

[0012] Preferably, a hinge is provided between the connecting plate and the impact-resistant protective plate, and the connecting plate and the impact-resistant protective plate are rotatably connected by the hinge. The strong magnet attracts the fan blade, and rotating the connecting plate allows the insert plate and the strong magnet to be inserted into the inside of the fan blade, thereby achieving stable fixation of the fan blade and the impact-resistant protective plate.

[0013] Preferably, the positioning mechanism includes an insertion rod, a threaded surface, a slot one, a rod, a lifting groove, a lifting plate, a spring telescopic rod, and a slot two. The insertion rod is inserted into the interior of the impeller fixing cylinder, and the insertion rod has a threaded surface on its exterior. A slot one is provided at the position where the impeller fixing cylinder overlaps with the insertion cylinder. A rod is inserted into the interior of the slot one. A spring-loaded mechanism is provided between the rod and the impeller fixing cylinder. A slot two is provided at the inner opening of the impeller fixing cylinder, and the rod is adapted to be inserted into the interior of the slot two.

[0014] Preferably, the impeller fixing cylinder has multiple slots 1 evenly distributed inside, and the slots 1 are arranged opposite to the slots 2 inside the impeller fixing cylinder.

[0015] Preferably, the rebound mechanism includes a lifting groove, a lifting plate, and a spring telescopic rod. The lifting groove is located inside the impeller fixing cylinder on one side of slot one. One side of the insertion rod is fixedly connected to the lifting plate, and the top of the lifting plate is fixedly connected to the spring telescopic rod. The other end of the spring telescopic rod is fixed to the top of the lifting groove. By rotating the insertion rod with a thread, the insertion rod is inserted into the inside of the impeller fixing cylinder, pressing the insertion rod to make it engage with slot two, thus fixing the impeller fixing cylinder and the insertion cylinder. After the insertion rod is pulled out, the spring telescopic rod naturally presses the lifting plate to eject the insertion rod.

[0016] Compared with related technologies, the anti-cavitation impeller assembly of the water pump provided by this utility model has the following beneficial effects: 1. By fixing the insert sleeve to the outside of the impeller fixing cylinder, the impact protection plate overlaps with the fan blade, thereby protecting the surface of the fan blade. The auxiliary stabilizing mechanisms on both sides can maintain the stability between the impact protection plate and the fan blade to avoid collision, thus protecting the surface of the fan blade and reducing cavitation impact.

[0017] 2. The centrifugal force generated during the impeller rotation allows the T-shaped block to slide inside the T-groove, thereby enabling the brush body to naturally wipe the surface of the fan blade and remove cavitation residue. Rotating the connecting plate allows the insert plate and strong magnet to be inserted into the fan blade, thus achieving stable fixation of the fan blade and the impact-resistant protective plate.

[0018] 3. By rotating the threaded insertion rod, the insertion rod is inserted into the inside of the impeller fixing cylinder, pressing the insertion rod to make it engage with the slot two, thus fixing the impeller fixing cylinder and the insertion cylinder. After the insertion rod is pulled out, the spring telescopic rod naturally presses the lifting plate to pop out the insertion rod. Attached Figure Description

[0019] Figure 1 This is a frontal three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 3 This is a three-dimensional structural diagram of the rear view of this utility model; Figure 4 This utility model Figure 1 Enlarged structural diagram at point A; Figure 5 This utility model Figure 3 Enlarged structural diagram at point B; Figure 6 This utility model Figure 3 A magnified structural diagram at point C.

[0020] In the diagram: 1. Impeller fixing cylinder; 2. Insert cylinder; 3. Fan blade; 4. Impact-resistant protective plate; 5. Fixing plate; 6. T-slot; 7. T-block; 8. Brush body; 9. Slot 1; 10. Insert rod; 11. Lifting slot; 12. Lifting plate; 13. Spring telescopic rod; 14. Slot 2; 15. Hinge; 16. Connecting plate; 17. Insert plate; 18. Strong magnet; 19. Insert rod; 20. Threaded surface. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] Example 1 A preferred embodiment of the anti-cavitation impeller assembly of the water pump provided by this utility model is, for example... Figures 1 to 6As shown: A water pump anti-cavitation impeller assembly includes an impeller fixing cylinder 1; an insert 2 is sleeved on one side of the impeller fixing cylinder 1; a fan blade 3 is fixedly connected to the outside of the impeller fixing cylinder 1; an impact-resistant protective plate 4 is fixedly connected to the outside of the insert 2; the insert 2 is inserted into the outside of the impeller fixing cylinder 1; the front of the impact-resistant protective plate 4 overlaps with the position of the fan blade 3; a self-cleaning mechanism is provided between the impact-resistant protective plate 4 and the fan blade 3; an auxiliary stabilizing mechanism is provided between the impact-resistant protective plate 4 and both sides of the fan blade 3; the impact-resistant protective plate 4 is away from the fan blade 3; and a positioning mechanism is provided between the insert 2 and the impeller fixing cylinder 1.

[0024] It should be noted that some existing anti-cavitation impeller assemblies for water pumps still have certain shortcomings in actual use. Due to the diverse internal environment of water pumps and the easy wear of rubber, some water pump impellers are easily subjected to cavitation impact and wear during the use of rubber protection, which requires frequent replacement, is not convenient to use, and has great limitations.

[0025] In this embodiment, after the insert 2 is fixed outside the impeller fixing cylinder 1, the impact protection plate 4 overlaps with the fan blade 3, thereby protecting the surface of the fan blade 3. The auxiliary stabilizing mechanisms on both sides can maintain the stability between the impact protection plate 4 and the fan blade 3 to avoid collision, thereby protecting the surface of the fan blade 3 and reducing cavitation impact.

[0026] In a further preferred embodiment of the present invention, the impeller fixing cylinder 1 has a slot on its outside that is adapted to be inserted into the insert cylinder 2, the number of fan blades 3 and impact-resistant protective plates 4 are equal, and the impact-resistant protective plates 4 overlap with the front projection position of the impact-resistant protective plates 4.

[0027] In a further preferred embodiment of the present invention, the self-cleaning mechanism includes a fixed plate 5, a T-shaped groove 6, a T-shaped block 7 and a brush body 8. The fixed plate 5 is fixedly connected to one side of the impact-resistant protective plate 4. The fixed plate 5 has a T-shaped groove 6 inside. The T-shaped block 7 is slidably connected inside the T-shaped groove 6. The brush body 8 is fixedly connected to the side of the T-shaped block 7 located outside the T-shaped groove 6.

[0028] In this embodiment, the centrifugal force generated during the impeller rotation allows the T-shaped block 7 to slide inside the T-shaped groove 6, thereby enabling the brush body 8 to naturally wipe the surface of the fan blade 3 and remove its cavitation residue.

[0029] In a further preferred embodiment of the present invention, the bristle surface of the brush body 8 is adapted to slide against the front side of the fan blade 3, the fixing plate 5 is fixed to the middle of one side of the impact-resistant protective plate 4, and the T-shaped block 7 is restricted to slide inside the T-shaped groove 6.

[0030] Example 2 Based on Embodiment 1, a preferred embodiment of the anti-cavitation impeller assembly for the water pump provided by this utility model is as follows: Figures 1 to 6 As shown: the insertion positions of the insert 2 and the impeller fixing cylinder 1 fit together and are spliced ​​together. The insert 2 and the impact-resistant protective plate 4 are an integral structure, and the impeller fixing cylinder 1 and the fan blade 3 are an integral structure.

[0031] In a further preferred embodiment of this utility model, the auxiliary stabilizing mechanism includes a hinge 15, a connecting plate 16, an insert plate 17, and a strong magnet 18. The two sides of the impact-resistant protective plate 4 are rotatably connected to the connecting plate 16, and the other end of the connecting plate 16 is fixedly connected to the insert plate 17. The other end of the insert plate 17 is fixedly connected to the strong magnet 18. The strong magnet 18 and the insert plate 17 are inserted into the inside of the fan blade 3.

[0032] In a further preferred embodiment of the present invention, a hinge 15 is provided between the connecting plate 16 and the impact-resistant protective plate 4, and the connecting plate 16 and the impact-resistant protective plate 4 are rotatably connected by the hinge 15, and the strong magnet 18 is attracted to the fan blade 3.

[0033] In this embodiment, rotating the connecting plate 16 allows the insert plate 17 and the strong magnet 18 to be inserted into the interior of the fan blade 3, thereby achieving stable fixation of the fan blade 3 and the impact-resistant protective plate 4.

[0034] In a further preferred embodiment of this utility model, the positioning mechanism includes an insertion rod 19, a threaded surface 20, a slot 1 9, an insertion rod 10, a lifting groove 11, a lifting plate 12, a spring telescopic rod 13, and a slot 2 14. The insertion rod 19 is inserted into the interior of the impeller fixing cylinder 1, and the threaded surface 20 is provided on the exterior of the insertion rod 19. A slot 1 9 is provided at the position where the impeller fixing cylinder 1 and the insertion cylinder 2 overlap. The insertion rod 10 is inserted into the interior of the slot 1 9. A spring-loaded mechanism is provided between the insertion rod 10 and the impeller fixing cylinder 1. A slot 2 14 is provided at the inner opening of the impeller fixing cylinder 1, and the insertion rod 10 is adapted to be inserted into the interior of the slot 2 14.

[0035] In a further preferred embodiment of the present invention, a plurality of slots 9 are equidistantly distributed inside the impeller fixing cylinder 1, and the slots 9 are opposite to the slots 14 at the inner opening of the impeller fixing cylinder 1.

[0036] In a further preferred embodiment of the present invention, the rebound mechanism includes a lifting groove 11, a lifting plate 12, and a spring telescopic rod 13. The lifting groove 11 is opened inside the impeller fixing cylinder 1 and located on one side of the slot 9. The lifting plate 12 is fixedly connected to one side of the insertion rod 10, and the spring telescopic rod 13 is fixedly connected to the top of the lifting plate 12. The other end of the spring telescopic rod 13 is fixed to the top of the lifting groove 11.

[0037] In this embodiment, the insertion rod 19 is inserted into the impeller fixing cylinder 1 by rotating the threaded insertion rod 19, which then squeezes the insertion rod 10 into the slot 2 14, thus fixing the impeller fixing cylinder 1 and the insertion cylinder 2. After the insertion rod 19 is pulled out, the spring telescopic rod 13 naturally squeezes the lifting plate 12 to pop out the insertion rod 10.

[0038] In summary, the insert 2 is fitted onto the outside of the impeller fixing cylinder 1. The threaded rotating insert rod 19 inserts the insert rod 19 into the inside of the impeller fixing cylinder 1, pressing the insert rod 10 into the slot 14, thus fixing the impeller fixing cylinder 1 and the insert 2. Conversely, after the insert rod 19 is pulled out, the spring telescopic rod 13 naturally presses the lifting plate 12 to pop out the insert rod 10, achieving stable fixing of the fan blade 3 and the impact-resistant protective plate 4. After fixing, the impact-resistant protective plate 4 overlaps with the fan blade 3, achieving protection of the surface of the fan blade 3. Rotating the connecting plate 16 allows the insert plate 17 and the strong magnet 18 to be inserted into the inside of the fan blade 3, maintaining the stability between the impact-resistant protective plate 4 and the fan blade 3 to avoid collision, achieving protection of the surface of the fan blade 3, and reducing cavitation impact. The centrifugal force generated during the impeller rotation allows the T-shaped block 7 to slide inside the T-shaped groove 6, thereby allowing the brush body 8 to naturally wipe the surface of the fan blade 3 and remove cavitation residue.

[0039] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0040] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A cavitation-resistant impeller assembly for a water pump, characterized in that, Includes an impeller fixing cylinder (1): a sleeve (2) is fitted on one side of the impeller fixing cylinder (1), a fan blade (3) is fixedly connected to the outside of the impeller fixing cylinder (1), an impact-resistant protective plate (4) is fixedly connected to the outside of the sleeve (2), the sleeve (2) is inserted into the outside of the impeller fixing cylinder (1), the front of the impact-resistant protective plate (4) overlaps with the position of the fan blade (3), a self-cleaning mechanism is provided between the impact-resistant protective plate (4) and the fan blade (3), an auxiliary stabilizing mechanism is provided between the impact-resistant protective plate (4) and the two sides of the fan blade (3), the impact-resistant protective plate (4) is away from the fan blade (3), and a positioning mechanism is provided between the sleeve (2) and the impeller fixing cylinder (1).

2. The anti-cavitation impeller assembly of the water pump as described in claim 1, characterized in that, The impeller fixing cylinder (1) has a slot on the outside that is adapted to the insertion of the insert cylinder (2). The number of fan blades (3) and impact protection plates (4) are equal. The impact protection plate (4) overlaps with the impact protection plate (4) in the front projection position.

3. The anti-cavitation impeller assembly of the water pump as described in claim 1, characterized in that, The self-cleaning mechanism includes a fixed plate (5), a T-shaped groove (6), a T-shaped block (7), and a brush body (8). The fixed plate (5) is fixedly connected to one side of the impact-resistant protective plate (4). The T-shaped groove (6) is opened inside the fixed plate (5). The T-shaped block (7) is slidably connected inside the T-shaped groove (6). The brush body (8) is fixedly connected to the side of the T-shaped block (7) located outside the T-shaped groove (6).

4. The anti-cavitation impeller assembly of the water pump as described in claim 3, characterized in that, The brush body (8) has a bristle surface that is adapted to slide against the front of the fan blade (3), the fixing plate (5) is fixed to the middle of one side of the impact protection plate (4), and the T-shaped block (7) is restricted to slide inside the T-shaped groove (6).

5. The anti-cavitation impeller assembly of the water pump as described in claim 1, characterized in that, The insertion positions of the insert (2) and the impeller fixing cylinder (1) fit together and are spliced ​​together. The insert (2) and the impact protection plate (4) are an integral structure, and the impeller fixing cylinder (1) and the fan blade (3) are an integral structure.

6. The anti-cavitation impeller assembly of the water pump as described in claim 1, characterized in that, The auxiliary stabilizing mechanism includes a hinge (15), a connecting plate (16), an insert plate (17), and a strong magnet (18). The two sides of the impact-resistant protective plate (4) are rotatably connected to the connecting plate (16). The other end of the connecting plate (16) is fixedly connected to the insert plate (17). The other end of the insert plate (17) is fixedly connected to the strong magnet (18). The strong magnet (18) and the insert plate (17) are inserted into the inside of the fan blade (3).

7. The anti-cavitation impeller assembly of the water pump as described in claim 6, characterized in that, A hinge (15) is provided between the connecting plate (16) and the impact-resistant protective plate (4). The connecting plate (16) and the impact-resistant protective plate (4) are rotatably connected by the hinge (15). The strong magnet (18) is attracted to the fan blade (3).

8. The anti-cavitation impeller assembly of the water pump as described in claim 1, characterized in that, The positioning mechanism includes an insertion rod (19), a threaded surface (20), a slot one (9), an insertion rod (10), a lifting groove (11), a lifting plate (12), a spring telescopic rod (13), and a slot two (14). The insertion rod (19) is inserted into the interior of the impeller fixing cylinder (1). The insertion rod (19) is provided with a threaded surface (20) on the outside. A slot one (9) is provided at the position where the impeller fixing cylinder (1) overlaps with the insertion cylinder (2). An insertion rod (10) is inserted into the interior of the slot one (9). A spring mechanism is provided between the insertion rod (10) and the impeller fixing cylinder (1). A slot two (14) is provided at the inner opening of the impeller fixing cylinder (1). The insertion rod (10) is adapted to be inserted into the interior of the slot two (14).

9. The anti-cavitation impeller assembly of the water pump as described in claim 8, characterized in that, The impeller fixing cylinder (1) has multiple slots 1 (9) evenly distributed inside, and the slots 1 (9) are arranged opposite to the slots 2 (14) at the inner opening of the impeller fixing cylinder (1).

10. The anti-cavitation impeller assembly of the water pump as described in claim 9, characterized in that, The rebound mechanism includes a lifting groove (11), a lifting plate (12), and a spring telescopic rod (13). The lifting groove (11) is located inside the impeller fixing cylinder (1) on one side of slot one (9). The lifting plate (12) is fixedly connected to one side of the insertion rod (10). The spring telescopic rod (13) is fixedly connected to the top of the lifting plate (12). The other end of the spring telescopic rod (13) is fixed to the top of the lifting groove (11).

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