CN220435085U - Impeller of plastic centrifugal pump - Google Patents

Abstract

The utility model relates to the technical field of centrifugal pump impellers and discloses an impeller of a plastic centrifugal pump, which comprises a impeller disc, wherein a fixing block is fixedly arranged at the top of the impeller disc, a fixing device is connected to the inner wall of the fixing block in a sliding manner, a rotating block is arranged on the structure of the fixing device, a threaded rod is fixedly arranged on the outer wall of the rotating block, a connecting rod is connected to the outer edge of the threaded rod in a threaded manner, the threaded rod is driven to rotate by manually rotating the rotating block, the threaded rod is driven to rotate by the connecting rod which is connected with the outer edge of the threaded rod, the connecting rod is driven to move while the threaded rod is driven to rotate, a connecting plate fixedly arranged at one end far away from the threaded rod is driven to move by the connecting rod, and clamping strips fixedly arranged on the inner wall of the connecting plate enter clamping grooves formed in the outer wall of the fixing block, so that the fixing effect of the device is improved, and the occurrence of looseness in the using process is reduced.

Description

Impeller of plastic centrifugal pump

Technical Field

The utility model relates to the technical field of centrifugal pump impellers, in particular to an impeller of a plastic centrifugal pump.

Background

The centrifugal pump is a pump for conveying liquid by centrifugal force generated when the impeller rotates, and mainly comprises the impeller, a pump body, a pump shaft, a bearing, a sealing ring, a stuffing box and the like.

The impeller of the existing plastic centrifugal pump can refer to Chinese patent with the publication number of CN214170936U, which discloses an efficient impeller of the plastic centrifugal pump, comprising: impeller, impeller left side be provided with the front shroud, the impeller right side be provided with the back shroud, the back shroud in migrate and be provided with the impeller inserts, impeller inserts imbeds in the back shroud and fixed through the mounting, the impeller on be provided with space distortion blade, space distortion blade quantity be the even arrangement of heliciform on the impeller for the even number, space distortion blade both sides by outside-in attenuation. The utility model has the beneficial effects that: the impeller adopts a closed impeller, the blades adopt space torsion impellers, the clockwise inclination of the blades accords with the design of a hydraulic model and the rule of liquid flow, the hydraulic loss is small, the pump efficiency is high, and the impeller is convenient to detach and maintain. "

When the device is used, the impeller inserts are arranged in the rear cover plate in an migrating mode, the impeller inserts are embedded into the rear cover plate and fixed through the fixing pieces, the purpose of convenient disassembly and maintenance of the impeller is achieved, but the fixing effect of the device is poor in the using process, the impeller is easy to loosen due to the impact of water, the blades are damaged due to long-time use, and the device is inconvenient to detach and separate the blades and the impeller disc, so that the blades are inconvenient to replace.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the impeller of the plastic centrifugal pump, which has the advantages of improving the fixing effect on the impeller and preventing looseness in the using process, has the advantages of facilitating the disassembly and replacement of the blades and improving the working efficiency of the device, and solves the problems in the prior art.

The utility model provides the following technical scheme: the utility model provides an impeller of plastics centrifugal pump, includes the impeller, the fixed block that is equipped with in top of impeller, the inner wall sliding connection of fixed block has fixing device, fixing device's structure has the commentaries on classics piece, the fixed dress of outer wall of commentaries on classics piece has the threaded rod, the outer edge threaded connection of threaded rod has the connecting rod, the one end fixed mounting who keeps away from the threaded rod of connecting rod has the connecting plate, the fixed dress of inner wall of connecting plate has the card strip.

As a preferable technical scheme of the utility model, the inner wall of the fixed block is provided with a chute, the outer surface of the fixed block is provided with a clamping groove, and the inner wall of the clamping groove is in sliding connection with the outer wall of the clamping strip.

As a preferable technical scheme of the utility model, the top of the leaf disc is provided with the blades, and the top of the leaf disc is connected with the limiting device in a sliding manner.

As a preferable technical scheme of the utility model, the top of the leaf disc is provided with an arc-shaped groove, and the shape of the arc-shaped groove is matched with the shape of the blade.

As a preferable technical scheme of the utility model, the limiting device comprises a mounting groove, a spring is arranged on the inner wall of the mounting groove, and a clamping block is arranged at one end of the spring.

As a preferable technical scheme of the utility model, a round hole is formed on the outer surface of the blade, and the inner wall of the round hole is in sliding connection with the outer wall of the clamping block.

Compared with the prior art, the utility model has the following beneficial effects:

1. this impeller of plastics centrifugal pump drives the threaded rod through manual rotation commentaries on classics piece, rotates, the connecting rod of threaded connection is followed to the outside through the threaded rod for the threaded rod drives the connecting rod and removes in the pivoted, the connecting plate of the one end fixed assembly who keeps away from the threaded rod through the connecting rod, makes the connecting rod drive the connecting plate and removes, the card strip through the inner wall fixed assembly of connecting plate, in the draw-in groove that makes the card strip get into the outer wall of fixed block and offer, improve the fixed effect of device, reduce the condition emergence that takes place not hard up in the use.

2. This impeller of plastics centrifugal pump through moving the blade for the bottom extrusion fixture block of blade, and then makes the fixture block atress remove, the spring that is equipped with through the left side of fixture block for the fixture block extrudes the spring when removing, and then makes the elastic potential energy increase of spring, when the blade removes certain position, in the round hole of the surface of the propelling blade of fixture block through the elastic potential energy of spring was offered, reached the purpose of fixing the blade, through promoting the fixture block for the fixture block breaks away from the round hole of the outer wall of blade offering, reaches the dismantlement to the blade, is convenient for change the blade.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a fastening structure according to the present utility model;

fig. 4 is a schematic diagram of the structure of fig. 2 a according to the present utility model.

In the figure: 1. a leaf disc; 2. a blade; 3. a limiting device; 301. a mounting groove; 302. a spring; 303. a clamping block; 4. a fixed block; 5. a fixing device; 501. a rotating block; 502. a threaded rod; 503. a connecting rod; 504. a connecting plate; 505. and (5) clamping the strip.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, an impeller of a plastic centrifugal pump includes a impeller 1, a fixing block 4 is fixedly mounted on the top of the impeller 1, a fixing device 5 is slidably connected to an inner wall of the fixing block 4, a rotating block 501 is provided on a structure of the fixing device 5, a threaded rod 502 is fixedly mounted on an outer wall of the rotating block 501, a connecting rod 503 is connected to an outer edge thread of the threaded rod 502, a connecting plate 504 is fixedly mounted on one end, far away from the threaded rod 502, of the connecting rod 503, and a clamping bar 505 is fixedly mounted on an inner wall of the connecting plate 504.

Referring to fig. 3, a chute is formed in the inner wall of the fixing block 4, a clamping groove is formed in the outer surface of the fixing block 4, and the inner wall of the clamping groove is slidably connected with the outer wall of the clamping strip 505.

Referring to fig. 1, the top of the impeller 1 is provided with the blades 2, and the top of the impeller 1 is slidably connected with the limiting device 3, so that the device can conveniently rotate by using water flow, and the water consumption is small.

Referring to fig. 2, an arc groove is formed in the top of the blisk 1, and the shape of the arc groove is adapted to the shape of the blade 2, so that the blade 2 is convenient to limit and is prevented from falling off in the use process by the above structure.

Referring to fig. 4, the limiting device 3 includes a mounting groove 301, a spring 302 is disposed on an inner wall of the mounting groove 301, and a clamping block 303 is disposed at one end of the spring 302.

Referring to fig. 4, a round hole is formed in the outer surface of the blade 2, and the inner wall of the round hole is slidably connected with the outer wall of the clamping block 303, so that the clamping block 303 is conveniently connected with the blade 2, friction resistance and friction consumption between the clamping block 303 and the blade 2 are reduced, and service life is prolonged.

The working principle is that through manual rotation turning piece 501, drive threaded rod 502 and rotate, the connecting rod 503 along threaded connection through the outside of threaded rod 502, make threaded rod 502 pivoted drive connecting rod 503 and remove simultaneously, keep away from threaded rod 502's one end fixed mounting's connecting plate 504 through connecting rod 503, make connecting rod 503 drive connecting plate 504 remove, the card strip 505 of inner wall fixed mounting through connecting plate 504, make card strip 505 get into the draw-in groove that the outer wall of fixed block 4 was seted up, improve the fixed effect of the device, through moving blade 2, make the bottom extrusion fixture block 303 of blade 2, and then make fixture block 303 atress remove, spring 302 is extruded in the time of making fixture block 303 remove through the spring 302 that the left side of fixture block 303 is equipped with, and then make the elastic potential energy of spring 302 increase, when blade 2 removes certain position, in the round hole that the outer surface of blade 2 was seted up with fixture block 303 propulsion blade 2 through the elasticity of spring 302, reach the purpose of fixing blade 2, make fixture block 303 break away from the round hole that the outer wall of blade 2 was seted up through the promotion fixture block 303, reach the dismantlement to blade 2.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Impeller of a plastic centrifugal pump, comprising a impeller disc (1), characterized in that: fixed block (4) that is equipped with in top of leaf disc (1), the inner wall sliding connection of fixed block (4) has fixing device (5), the structure of fixing device (5) has turning block (501), the outer wall fixed of turning block (501) is equipped with threaded rod (502), the outer edge threaded connection of threaded rod (502) has connecting rod (503), the one end fixed mounting that threaded rod (502) was kept away from to connecting rod (503) has connecting plate (504), the inner wall fixed assembly of connecting plate (504) has card strip (505).

2. An impeller for a plastic centrifugal pump according to claim 1, wherein: the inner wall of the fixed block (4) is provided with a sliding groove, the outer surface of the fixed block (4) is provided with a clamping groove, and the inner wall of the clamping groove is in sliding connection with the outer wall of the clamping strip (505).

3. An impeller for a plastic centrifugal pump according to claim 1, wherein: the top of bladed disk (1) is provided with blade (2), the top sliding connection of bladed disk (1) has stop device (3).

4. An impeller for a plastic centrifugal pump according to claim 1, wherein: the top of the impeller (1) is provided with an arc-shaped groove, and the shape of the arc-shaped groove is matched with the shape of the blades (2).

5. An impeller for a plastic centrifugal pump according to claim 3, wherein: the limiting device (3) comprises a mounting groove (301), a spring (302) is arranged on the inner wall of the mounting groove (301), and a clamping block (303) is arranged at one end of the spring (302).

6. An impeller for a plastic centrifugal pump according to claim 3, wherein: round holes are formed in the outer surfaces of the blades (2), and the inner walls of the round holes are in sliding connection with the outer walls of the clamping blocks (303).