CN215409390U

CN215409390U - Impeller of open water pump

Info

Publication number: CN215409390U
Application number: CN202121100791.7U
Authority: CN
Inventors: 王永勇; 陈强飞; 周建
Original assignee: Ningbo Jinling Kitchen Equipment Co ltd
Current assignee: Ningbo Jinling Kitchen Equipment Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-01-04
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses an impeller of an open water pump, which comprises a central shaft, inner ring blades connected with the central shaft, outer ring blades and an annular connecting wall, wherein the outer ring blades are connected with the periphery of the inner ring blades through the annular connecting wall, the annular connecting wall is coaxially arranged with the central shaft, the inner side of the annular connecting wall is connected with the inner ring blades, the outer side of the annular connecting wall is connected with the outer ring blades, the periphery of the inner ring of the impeller is connected with an outer ring of the impeller which is coaxially arranged with the inner ring of the impeller, and the inner ring blades and the outer ring blades simultaneously draw fluid and supply the fluid to two different water paths when the impeller rotates, so that a water pump does not need to be independently arranged and additionally arranged, the cost is reduced, meanwhile, the impeller has a compact structure, and is more convenient to assemble and use.

Description

Impeller of open water pump

Technical Field

The utility model relates to the technical field of water pumps, in particular to an impeller of an open type water pump.

Background

Before the water pump works, the water pump and the water inlet pipe must be filled with water, then the liquid obtains energy under the action of inertial centrifugal force by means of the impeller rotating at high speed so as to improve the internal pressure of the liquid, when the impeller rotates fast, the blades promote the water to rotate fast, the water flies out of the impeller under the action of the centrifugal force, after the water in the water pump is thrown out, the central part of the impeller forms a vacuum area, then the water at a water source enters the water inlet pipe under the action of atmospheric pressure (or water pressure), and continuous water pumping can be realized after circulation is not completed. The water pump has the advantages of simple structure, easy operation, easy flow regulation, suitability for conveying various materials with special properties and the like, and is widely applied to various fields, such as various industrial places, and various household appliances, such as washing machines, dish washing machines, air conditioners and the like.

The existing impeller comprises a shaft positioned at the center and a plurality of blades which are uniformly distributed along the circumferential direction on the circumferential surface of the shaft and extend along the axial direction, the impeller can only supply one spraying device after drawing fluid, namely, the impeller can only cooperate with one water channel to draw water and pump, when the spraying device arranged at another position needs to be supplied, namely, the impeller draws the fluid and then needs to pump two mutually isolated water channels, then a water pump needs to be separately arranged, the use and assembly cost is increased, meanwhile, the water pump is separately added, more spaces can be occupied, the internal structure of the device for installing the water pump is complex, the assembly is inconvenient, and the popularization on the market is not facilitated.

Disclosure of Invention

The utility model aims to provide an impeller of an open water pump, wherein an impeller outer ring is additionally arranged on the periphery of an impeller inner ring, so that fluid can be simultaneously sucked by the impeller inner ring and the impeller outer ring and pumped towards respective corresponding pump chambers.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides an impeller of open water pump, includes the center pin and connects in the inner circle blade of center pin, still includes outer lane blade and cyclic annular connection wall, the outer lane blade is connected in the periphery of inner circle blade through cyclic annular connection wall, cyclic annular connection wall and the coaxial setting of center pin, the inner circle blade is connected to the inboard of cyclic annular connection wall, outer lane blade is connected in the outside of cyclic annular connection wall.

Further, the periphery of the bottom of the outer ring blade is provided with a lower water retaining ring, an outer ring liquid inlet is formed between the lower water retaining ring and the annular connecting wall, and an inner ring liquid inlet is formed between the annular connecting wall and the central shaft.

Furthermore, the top of the outer ring blade is provided with an upper water retaining ring, and the inner end of the upper water retaining ring extends to the annular connecting wall.

Further, the outer ring blades include an upper section outer blade curved in a direction opposite to the rotation direction of the central shaft and a lower section outer blade curved in the rotation direction of the central shaft.

Furthermore, the lower section outer blade extends to the lowest end of the lower water retaining ring and is smoothly connected with the lower end surface of the lower water retaining ring.

Furthermore, the upper outer blade is connected with the upper end face of the lower water retaining ring, and the outer end of the upper outer blade is smoothly connected with the outer peripheral face of the upper end of the lower water retaining ring.

Further, the lowest end of the outer ring blade is higher than the lowest end of the inner ring blade.

Further, the top of center pin sets to tubaeform structure, and the outer end of tubaeform structure's center pin extends to the edge of inner circle blade, the inner of inner circle blade suits with the outer axial wall of center pin.

Furthermore, the central shaft comprises an upper section shaft and a lower section shaft which are arranged in a split mode, the upper section shaft is fixedly connected with the lower section shaft, the inner ring blades comprise upper section inner blades which axially extend on the circumferential surface of the upper section shaft and lower section inner blades which axially extend on the circumferential surface of the lower section shaft, and the bottom ends of the upper section inner blades correspond to the top ends of the lower section inner blades.

Further, the annular connecting wall is fixedly connected to the lower-section inner blade.

In conclusion, the utility model has the following beneficial effects:

the utility model provides an impeller of open water pump, including inner circle blade and coaxial coupling in the outside outer lane blade of inner circle blade, form the inner circle inlet between cyclic annular connection wall and the center pin, form the outer lane inlet between lower retaining ring and the cyclic annular connection wall, when the impeller rotates, the fluid is drawn simultaneously with the outer lane inlet to the inner circle inlet, this inner circle inlet corresponds two pump chambers of mutual isolation with the outer lane inlet, so that the fluid of drawing carries out the pump sending along the pump chamber that corresponds, the inner circle blade draws the fluid simultaneously and supplies for two different water routes with the outer lane blade when the impeller rotates promptly, and then needn't set up alone and add a water pump, the cost is reduced, this impeller compact structure simultaneously, and it is more convenient to assemble and use.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a sectional view of the present invention without the water guard ring.

FIG. 4 is a schematic structural view of the present invention without the water retaining ring.

Fig. 5 is a top view of the present invention.

In the figure: 1. a central shaft; 11. an upper section shaft; 12. a lower section shaft; 2. an inner ring blade; 21. an upper inner blade; 22. a lower inner blade; 3. an outer ring blade; 31. an upper outer blade; 32. a lower outer blade; 4. an annular connecting wall; 41. a liquid inlet of the inner ring; 5. a lower water retaining ring; 51. a liquid inlet of the outer ring; 6. and (4) an upper water retaining ring.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 5, an impeller of an open water pump includes a central shaft 1, inner ring blades 2 connected to the central shaft 1, and outer ring blades 3 coaxially connected to the outer portions of the inner ring blades 2, and the impeller further includes an annular connecting wall 4, the outer ring blades 3 are connected to the outer periphery of the inner ring blades 2 through the annular connecting wall 4, the annular connecting wall 4 is coaxially disposed with the central shaft 1, the inner ring blades 2 are connected to the inner side of the annular connecting wall 4, the outer ring blades 3 are connected to the outer side of the annular connecting wall 4, the inner ring blades 2 and the outer ring blades 3 can simultaneously draw fluid along the axial direction of the central shaft 1 and respectively pump the drawn fluid, specifically, the inner ring blades 2 are plural and uniformly distributed on the shaft wall of the central shaft 1, and the central shaft 1 is a hollow structure, so that the central shaft 1 can be conveniently sleeved at the output end of a motor.

An inner ring liquid inlet 41 is formed between the annular connecting wall 4 and the central shaft 1, specifically, the lowest end of the inner ring blade 2 is flush with the bottom of the annular connecting wall 4 and is smoothly connected with the lower end surface of the annular connecting wall 4, the lowest end of the outer ring blade 3 is arranged on the outer peripheral wall of the annular connecting wall 4, a lower water retaining ring 5 is arranged on the outer periphery of the bottom of the outer ring blade 3, an outer ring liquid inlet 51 is formed between the lower water retaining ring 5 and the annular connecting wall 4, specifically, the lowest end of the outer ring blade 3 is flush with the bottom of the lower water retaining ring 5, through the arrangement of the annular connecting wall 4, on one hand, the inner ring blade 2 and the outer ring blade 3 are separated into two independent liquid inlets, namely, the inner ring liquid inlet 41 and the outer ring blade 3, the annular connecting wall 4 is matched with a volute to form an inner ring pump chamber communicated with the inner ring liquid inlet 41 and an outer ring pump chamber communicated with the outer ring liquid inlet 51, and the inner ring pump chamber is isolated from the outer ring pump chamber, on the other hand, the annular connecting wall 4 increases the strength of the inner ring blade 2 and the outer ring blade 3, so that the impeller is firmer and has longer service life, the mass of the lower end of the impeller is also increased by the annular connecting wall 4, the impeller is prevented from toppling over due to the fact that the upper part is lighter than the lower part, namely the motor output shaft connected with the impeller is easy to bend, the outer ring blade 3 is firmer and has longer service life by arranging the lower water retaining ring 5, meanwhile, the lower water retaining ring 5 can be used for blocking fluid, the fluid is convenient to enter from the outer ring liquid inlet 51, meanwhile, the lower water retaining ring 5 also increases the mass of the lower end of the impeller, the impeller is prevented from toppling over due to the upper part is lighter than the lower part, namely the motor output shaft connected with the impeller is easy to bend.

The top of the outer ring blade 3 is provided with an upper water retaining ring 6, the inner end of the upper water retaining ring 6 extends to the annular connecting wall 4, specifically, the periphery of the outer ring blade 3 is smoothly connected with the outer ring wall of the upper water retaining ring 6, and the upper water retaining ring 6 plays a role in converting the upward impact force of fluid into lateral impact force, so that the lateral liquid drainage efficiency of the utility model is further improved, and meanwhile, the upper water retaining ring 6 is arranged to ensure that the strength of the outer ring blade 3 is higher, firmer and longer in service life.

When the impeller rotates, the inner ring liquid inlet 41 and the outer ring liquid inlet 51 draw fluid simultaneously, the inner ring liquid inlet 41 and the outer ring liquid inlet 51 correspond to two mutually isolated pump chambers, so that the drawn fluid is pumped along the corresponding pump chambers, namely, the inner ring blades 2 and the outer ring blades 3 draw the fluid simultaneously and supply the fluid to two different water paths when the impeller rotates, and further a water pump does not need to be independently arranged and additionally arranged, the cost is reduced, meanwhile, the impeller is compact in structure, and the assembly and the use are more convenient.

The outer ring blade 3 comprises an upper section outer blade 31 which is bent along the opposite direction of the rotation direction of the central shaft 1 and a lower section outer blade 32 which is bent along the rotation direction of the central shaft 1, the upper section outer blade 31 and the lower section outer blade 32 can be designed into an integral forming or a detachable structure, and the lower end of the inner ring blade 2 is also bent along the rotation direction of the central shaft 1, so that the impeller can draw water at a lower water level and can draw enough flow from a water inlet, and the water drawing effect is better.

The lower outer blade 32 extends to the lowest end of the lower water retaining ring 5 and is smoothly connected with the lower end face of the lower water retaining ring 5, and through the arrangement, the connection strength of the lower outer blade 32 is increased.

The upper segment outer blade 31 is connected with the upper end face of the lower water retaining ring 5, the outer end of the upper segment outer blade 31 is smoothly connected with the outer peripheral face of the upper end of the lower water retaining ring 5, the upper segment outer blade 31 is circumferentially and evenly distributed on the upper end face of the lower water retaining ring 5 by taking the central shaft 1 as an axis, the situation that the pumping pressure is smaller due to the fact that the upper segment outer blade 31 is too short is prevented, meanwhile, the situation that the upper segment outer blade 31 is too long and stretches out the lower water retaining ring 5 is also prevented, then, the impeller is not matched with a volute, interference is easily formed on the inner wall of the volute, and meanwhile, the strength of the upper segment outer blade 31 is also achieved.

The lowest end of outer ring blade 3 is higher than the lowest end of inner ring blade 2, and the lowest end of outer ring blade 3 and the lowest end of inner ring blade 2 are flush with each other.

The top of the central shaft 1 is arranged to be in a horn-shaped structure, and the effect of converting the upward impact force of the fluid into the lateral impact force can be achieved through the arrangement, so that the lateral liquid drainage efficiency of the utility model is further improved, and in order to enable the inner ring blades 2 to be more convenient to process, the inner ends of the inner ring blades 2 are adapted to the outer shaft wall of the central shaft 1. The outer end of the central shaft 1 of the horn-shaped structure extends to the edge of the inner ring blade 2, so that the central negative pressure formed at the position of the central shaft 1 in the spray arm can be removed, the spray pressure of cleaning water in the spray arm is increased, and the open type high-pressure water pump is really an open type high-pressure water pump.

The central shaft 1 comprises an upper section shaft 11 and a lower section shaft 12 which are arranged in a split manner, specifically, an insertion manner can be adopted, the upper section shaft 11 is fixedly connected with the lower section shaft 12, the inner ring blades 2 comprise upper section inner blades 21 which axially extend on the circumferential surface of the upper section shaft 11 and lower section inner blades 22 which axially extend on the circumferential surface of the lower section shaft 12, the bottom ends of the upper section inner blades 21 correspond to the top ends of the lower section inner blades 22, specifically, the application number 201621146684.7 can be seen, the split arrangement of the central shaft 1 and the inner ring blades 2 has the function of effectively reducing the difficulty of mold design, so that the processing is simpler and more convenient, the manufacturing cost is greatly reduced, and the processability is also remarkably improved.

The annular connecting wall 4 is fixedly connected to the lower inner blade 22, that is, the upper inner blade 21 and the upper shaft 11 are integrated, and the lower inner blade 22, the lower shaft 12, the annular connecting wall 4, the outer ring blade 3 and the lower water retaining ring 5 are integrated.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims

1. The utility model provides an impeller of open water pump, includes center pin (1) and connects in the inner circle blade (2) of center pin (1), its characterized in that: still include outer lane blade (3) and cyclic annular connection wall (4), outer lane blade (3) are connected in the periphery of inner circle blade (2) through cyclic annular connection wall (4), cyclic annular connection wall (4) and center pin (1) coaxial setting, inner circle blade (2) are connected to the inboard of cyclic annular connection wall (4), outer lane blade (3) are connected in the outside of cyclic annular connection wall (4).

2. The impeller of an open water pump according to claim 1, wherein: the bottom periphery of outer lane blade (3) is equipped with down retaining ring (5), form outer lane inlet (51) between retaining ring (5) and cyclic annular connecting wall (4) down, form inner circle inlet (41) between cyclic annular connecting wall (4) and center pin (1).

3. The impeller of an open water pump according to claim 2, wherein: the top of outer lane blade (3) is equipped with water retaining ring (6), the inner of going up water retaining ring (6) extends to cyclic annular connecting wall (4).

4. The impeller of an open water pump according to claim 1, wherein: the outer ring blade (3) comprises an upper section outer blade (31) which is bent along the opposite direction of the rotation direction of the central shaft (1) and a lower section outer blade (32) which is bent along the rotation direction of the central shaft (1).

5. The impeller of an open water pump according to claim 4, wherein: the lower section outer blade (32) extends to the lowest end of the lower water retaining ring (5) and is smoothly connected with the lower end surface of the lower water retaining ring (5).

6. The impeller of an open water pump according to claim 4, wherein: the upper-section outer blades (31) are connected with the upper end face of the lower water retaining ring (5), and the outer ends of the upper-section outer blades (31) are smoothly and smoothly connected with the outer peripheral face of the upper end of the lower water retaining ring (5).

7. The impeller of an open water pump according to claim 1, wherein: the lowest end of the outer ring blade (3) is higher than the lowest end of the inner ring blade (2).

8. The impeller of an open water pump according to claim 1, wherein: the top of center pin (1) sets to tubaeform structure, and the outer end of the center pin (1) of tubaeform structure extends to the edge of inner circle blade (2), the inner of inner circle blade (2) suits with the outer axial wall of center pin (1).

9. An impeller for an open water pump according to any one of claims 1 to 8, wherein: the central shaft (1) comprises an upper section shaft (11) and a lower section shaft (12) which are arranged in a split mode, the upper section shaft (11) is fixedly connected with the lower section shaft (12), the inner ring blades (2) comprise upper section inner blades (21) which extend axially on the circumferential surface of the upper section shaft (11) and lower section inner blades (22) which extend axially on the circumferential surface of the lower section shaft (12), and the bottom ends of the upper section inner blades (21) correspond to the top ends of the lower section inner blades (22).

10. The impeller of an open water pump according to claim 9, wherein: the annular connecting wall (4) is fixedly connected with the lower-section inner blade (22).