Water pump with blades convenient to replace

Abstract

The utility model relates to the technical field of water pumps, and discloses a water pump with blades convenient to replace, which comprises a driving device, the output end of the driving device is fixedly connected with a rotating shaft, the outer wall of the driving device is fixedly connected with a shell I, and the side wall of the rotating shaft is provided with a limiting component. According to the water pump with the blades convenient to replace, the limiting rings abut against the blades, the blades are prevented from accidentally moving in the operation process of the water pump, the blades are prevented from accidentally loosening or shifting, and the stability and reliability of equipment operation are enhanced; the lower ends of the blades can be more tightly embedded into the narrow ends of the isosceles trapezoids, the geometric constraint prevents the blades from loosening or shaking in the sliding grooves, the blades are prevented from disengaging from the grooves, the stability of the blades in the operation process is improved, the limiting blocks can be connected with the limiting grooves in a clamped mode under the action of the elastic telescopic rods, and then accidental rotation of the limiting rings is prevented.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, specifically a water pump with easily replaceable blades. Background Technology

[0002] A water pump is a machine that transports or pressurizes liquids. It transfers the mechanical energy of a prime mover or other external energy to the liquid, increasing the liquid's energy. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals. It can also transport liquid-gas mixtures and liquids containing suspended solids. The current method of installing blades is through interference fit.

[0003] However, in actual use, the above-mentioned water pumps require special disassembly tools due to their interference fit installation, making it inconvenient for operators to replace the blades, increasing the time required for disassembly and reducing disassembly efficiency. Therefore, we propose a water pump that facilitates blade replacement. Utility Model Content

[0004] The purpose of this invention is to provide a water pump that facilitates blade replacement, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water pump that facilitates blade replacement, comprising a drive device, a rotating shaft fixedly connected to the output end of the drive device, a housing fixedly connected to the outer wall of the drive device, and a limiting component provided on the side wall of the rotating shaft, the limiting component comprising:

[0006] A sliding groove is formed on the side wall of the rotating shaft and is slidably connected to the blade. An annular groove is formed on the side wall of the rotating shaft.

[0007] A limiting ring is fitted into an annular groove, and a limiting groove is formed on the outer wall of the annular groove;

[0008] The mounting groove is formed on the side wall of the rotating shaft, and an elastic telescopic rod is fixedly connected to the inner wall of the mounting groove. A limit block is fixedly connected to the end face of the elastic telescopic rod.

[0009] Preferably, the inner wall of the housing is threaded with a threaded rod, the end face of the threaded rod is sleeved with the push plate, and a handwheel is fixedly connected to the end of the threaded rod away from the push plate.

[0010] Preferably, the inner wall of the housing is provided with a groove, which is movably connected to the push plate so that the push plate will not affect the rotation of the blade.

[0011] Preferably, the cross-sections of the sliding groove and the limiting groove are the same, the blade is slidably connected to the limiting groove, and the limiting groove is slidably connected to the limiting block.

[0012] Preferably, a second housing is provided on the side wall of the first housing. A bolt is threadedly connected to the side wall of the first housing. The bolt is threadedly connected to the second housing, and the first housing and the second housing are fixed together by the bolt. The blade can be maintained by removing the bolt.

[0013] Preferably, a water outlet pipe is fixedly connected to the arc-shaped surface of the first shell, and a water inlet pipe is fixedly connected to the side wall of the second shell. The rotation of the blades draws water from the water inlet pipe into the water outlet pipe, thereby realizing the transfer of liquid.

[0014] Compared with the prior art, this utility model provides a water pump that facilitates blade replacement, and has the following beneficial effects:

[0015] 1. This water pump, which facilitates blade replacement, utilizes a sliding groove, a limiting ring, and a limiting block. The limiting ring abuts against the blade to prevent accidental movement of the blade during pump operation, thus preventing accidental loosening or displacement and enhancing the stability and reliability of the equipment. When the shaft rotates, the blade experiences centrifugal force, causing it to move away from the shaft. The lower end of the blade is more tightly embedded in the narrow end of the isosceles trapezoid. This geometric constraint prevents the blade from loosening or wobbling within the sliding groove, preventing it from falling out of the groove and improving the stability of the blade during operation. The limiting block, under the action of the elastic telescopic rod, engages with the limiting groove, thereby preventing accidental rotation of the limiting ring and avoiding overlap between the sliding groove and the limiting groove, which could lead to the risk of the blade loosening or falling off. It also makes disassembly and use more convenient.

[0016] 2. This water pump, which facilitates blade replacement, uses a threaded rod and a push plate. Turning the handwheel drives the threaded rod to rotate, causing it to move laterally and pushing the push plate and blades away from the drive unit. During long-term use, the blades and shaft may become jammed due to rust or impurities, increasing the difficulty of disassembly. The mechanical force of the push plate can overcome these additional resistances and ensure a smooth disassembly process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;

[0019] Figure 3 This is an exploded view of the fan blade of this utility model;

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the structure of region A in the middle;

[0021] Figure 5 This is a cross-sectional structural diagram of the shell of this utility model;

[0022] Figure 6 This utility model Figure 5 Schematic diagram of the structure of region B in the middle.

[0023] In the diagram: 1. Drive unit; 2. Rotating shaft; 3. Housing 1; 4. Housing 2; 5. Limiting assembly; 501. Slide groove; 502. Annular groove; 503. Limiting ring; 504. Limiting groove; 505. Mounting groove; 506. Elastic telescopic rod; 507. Limiting block; 508. Blade; 6. Threaded rod; 7. Push plate; 8. Groove; 9. Handwheel. Detailed Implementation

[0024] like Figures 1-6 As shown, this utility model provides a technical solution: a water pump that facilitates blade replacement, including a drive device 1, a rotating shaft 2 fixedly connected to the output end of the drive device 1, a housing 3 fixedly connected to the outer wall of the drive device 1, and a limiting component 5 provided on the side wall of the rotating shaft 2. The limiting component 5 includes a sliding groove 501, an annular groove 502, a limiting ring 503, a limiting groove 504, a mounting groove 505, an elastic telescopic rod 506, a limiting block 507, and blades 508.

[0025] In one embodiment of this utility model, a second housing 4 is provided on the side wall of the first housing 3. A bolt is threadedly connected to the side wall of the first housing 3, and the bolt is threadedly connected to the second housing 4. The first housing 3 and the second housing 4 are fixed together by the bolt. By removing the bolt, the blade 508 can be maintained. A water outlet pipe is fixedly connected to the arc-shaped surface of the first housing 3, and a water inlet pipe is fixedly connected to the side wall of the second housing 4. The blade 508 rotates to input water from the water inlet pipe into the water outlet pipe, thereby realizing the transfer of liquid.

[0026] A sliding groove 501 is formed on the side wall of the rotating shaft 2. The sliding groove 501 is slidably connected to the blade 508. An annular groove 502 is formed on the side wall of the rotating shaft 2. A limiting ring 503 is sleeved on the annular groove 502. A limiting groove 504 is formed on the outer wall of the annular groove 502. The cross-sections of the sliding groove 501 and the limiting groove 504 are the same. The blade 508 is slidably connected to the limiting groove 504. The limiting groove 504 is slidably connected to the limiting block 507. An installation groove 505 is formed on the side wall of the rotating shaft 2. An elastic telescopic rod 506 is fixedly connected to the inner wall of the installation groove 505. A limiting block 507 is fixedly connected to the end face of the elastic telescopic rod 506.

[0027] The drive unit 1 drives the rotating shaft 2 and the blade 508 to rotate, and inputs water from the inlet pipe into the outlet pipe to realize the transfer of liquid.

[0028] By removing the bolts, the housing 2 4 is removed from the housing 1 3. Then, the limiting block 507 is pushed down to disconnect the limiting block 507 from the limiting groove 504. Then, the limiting ring 503 is rotated to align the limiting groove 504 with the sliding groove 501. At this time, the blade 508 can be slid and removed from the rotating shaft 2. A new blade 508 can be replaced, thereby achieving the maintenance of the blade 508.

[0029] By setting a limiting ring 503, the limiting ring 503 abuts against the blade 508, thereby limiting the blade 508, preventing the blade 508 from moving unexpectedly during the operation of the water pump, preventing the blade 508 from being accidentally loosened or displaced, and enhancing the stability and reliability of the equipment operation.

[0030] The cross-section of the groove 501 is a combination of an isosceles trapezoid and a rectangle. The long side of the rectangle is equal to the wide end of the isosceles trapezoid, and the narrow end of the isosceles trapezoid is located at the end away from the axis of the rotating shaft 2. When the rotating shaft 2 rotates, the blade 508 will have a force away from the rotating shaft 2 due to centrifugal force. Through the cross-section of the groove 501, the lower end of the blade 508 will be more tightly embedded in the narrow end of the isosceles trapezoid. This geometric constraint prevents the blade 508 from loosening or shaking in the groove 501, prevents the blade 508 from falling out of the groove, and improves the stability of the blade 508 during operation.

[0031] During the installation of blade 508, the limiting block 507 will engage with the limiting groove 504 under the action of the elastic telescopic rod 506, thereby preventing the limiting ring 503 from rotating unexpectedly and avoiding the sliding groove 501 from coinciding with the limiting groove 504, thus preventing the blade 508 from becoming loose or falling off.

[0032] In addition, a threaded rod 6 is threadedly connected to the inner wall of housing 3. The end face of the threaded rod 6 is sleeved with the push plate 7. A handwheel 9 is fixedly connected to the end of the threaded rod 6 away from the push plate 7. A groove 8 is provided on the inner wall of housing 3. The groove 8 is movably connected to the push plate 7 so that the push plate 7 will not affect the rotation of the blade 508. Rotating the handwheel 9 drives the threaded rod 6 to rotate. The threaded rod 6 moves laterally and pushes the push plate 7 to move into the interior of housing 3. The push plate 7 pushes the blade 508 to move away from the drive device 1. During long-term use, the blade 508 and the rotating shaft 2 may become jammed due to rust or impurity accumulation, increasing the difficulty of disassembly. The mechanical force of the push plate 7 can overcome these additional resistances and ensure that the disassembly process is carried out smoothly.

[0033] In this utility model, when in use, the bolts are removed, the housing 2 4 is removed from the housing 1 3, the limiting block 507 is pushed down so that the limiting block 507 is no longer inserted into the limiting groove 504, and then the limiting ring 503 is rotated so that the limiting groove 504 is aligned with the sliding groove 501. At this time, the blade 508 can be slid and removed from the rotating shaft 2.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A water pump with easily replaceable blades, comprising a drive unit (1), wherein a rotating shaft (2) is fixedly connected to the output end of the drive unit (1), characterized in that: The outer wall of the drive device (1) is fixedly connected to a housing (3), and the side wall of the rotating shaft (2) is provided with a limiting component (5), the limiting component (5) including: A slid groove (501) is formed on the side wall of the rotating shaft (2). The slid groove (501) is slidably connected to the blade (508). An annular groove (502) is formed on the side wall of the rotating shaft (2). A limiting ring (503) is sleeved with an annular groove (502), and a limiting groove (504) is formed on the outer wall of the annular groove (502); The mounting groove (505) is opened on the side wall of the rotating shaft (2). An elastic telescopic rod (506) is fixedly connected to the inner wall of the mounting groove (505). A limit block (507) is fixedly connected to the end face of the elastic telescopic rod (506).

2. The water pump with easily replaceable blades according to claim 1, characterized in that: The inner wall of the housing (3) is threaded with a threaded rod (6), the end face of which is sleeved with the push plate (7), and a handwheel (9) is fixedly connected to the end of the threaded rod (6) away from the push plate (7).

3. A water pump with easily replaceable blades according to claim 2, characterized in that: The inner wall of the housing (3) is provided with a groove (8), and the groove (8) is movably connected to the push plate (7).

4. A water pump with easily replaceable blades according to claim 1, characterized in that: The cross-sections of the slide groove (501) and the limiting groove (504) are the same. The blade (508) is slidably connected to the limiting groove (504), and the limiting groove (504) is slidably connected to the limiting block (507).

5. A water pump with easily replaceable blades according to claim 1, characterized in that: The side wall of the first housing (3) is provided with a second housing (4), and the side wall of the first housing (3) is threaded with a bolt, which is threadedly connected to the second housing (4).

6. A water pump with easily replaceable blades according to claim 5, characterized in that: A water outlet pipe is fixedly connected to the arc-shaped surface of the first shell (3), and a water inlet pipe is fixedly connected to the side wall of the second shell (4).

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