KR101933342B1 - Impeller for water pump with curved wing structure and water pump applied with the same - Google Patents

Abstract

The present invention relates to an underwater impeller having a curved wing structure, and an underwater pump employing the same. More particularly, the present invention provides an impeller having a curved wing structure and connected to a driving motor installed in an underwater pump to be rotatable, the impeller including: a lower panel having an inlet such that water is introduced through driving of the driving motor installed in the underwater pump; an upper panel disposed on the upper side of the lower panel and connected to a rotary shaft of the driving motor installed in the underwater pump; and a wing part connecting an upper surface of the lower panel and a bottom surface of the upper panel, wherein one end of the wing part is disposed to be closer to the inlet and the wing part is curved outwards as it goes toward an opposite end thereof, and an underwater pump employing the same. The impeller for an underwater pump having a curved wing structure and an underwater pump employing the same according to the present invention may prevent foreign substances from being caught due to rotation of the impeller and may pump water by forming the curved wing part while connecting the lower panel and the upper panel and may improve a pumping efficiency of water by forming an outer surface of the wing part such that the wing part is curved and widening a contact area of water as compared with the wing part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impeller for an underwater pump having a curved wing structure,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impeller for a submersible pump having a curved blade structure and a submerged pump to which the submerged pump is applied. More particularly, the present invention relates to a submerged pump having a curved wing connecting a lower panel and an upper panel, And an impeller for an underwater pump having a curved blade structure capable of improving the pumping efficiency of water by widening a contact area with water as compared with a wing portion of a right angle by curving the outer surface of the wing portion, And an underwater pump to which the pump is applied.

Generally, a submersible pump is a device which is installed in water and sucks a fluid and then forcibly flows. It is a device that rotates an impeller installed therein, sucks fluid by an underwater pump, pressurizes it, and discharges it to the outside.

A motor for generating a rotational power is provided in the motor casing, and a motor shaft connected to the impeller casing from the motor is provided in the oil chamber. The motor shaft is connected to the motor casing, the impeller casing and the impeller, And an impeller connected to the motor shaft is installed in the impeller casing.

In this case, the impeller as in the conventional patent document 1 has an upper plate formed in the shape of a plate and having an axial hole to be engaged with the rotation axis of the driving motor, and a lower plate disposed spaced apart from the lower plate, And a lower plate formed between the upper plate and the lower plate and having a central portion formed with an inlet hole for allowing a fluid to flow through the lower portion of the casing to flow therethrough and discharging the fluid flowing through the inlet hole in a direction perpendicular to the inlet hole Thereby forming a striking wing portion.

The upper plate is curved in the outward direction of the upper plate at one point of the inlet hole of the lower plate and has an elbow shape so that the other end vertically connects between the outer circumferential surfaces of the upper plate and the lower plate, The wing portion is guided so that the fluid is discharged in the direction of the inner circumferential surface of the casing.

However, the wings formed on the conventional impeller are formed to have the same height (vertical) as the space between the upper plate and the lower plate, so that the area pressed by pushing and pushing is smaller than that of curved or sloped wings. There is a problem that the discharge efficiency is deteriorated.

In addition, the conventional impeller has a double structure in which the blade has a dual structure, and the driving efficiency of the impeller is reduced due to its weight, and the manufacturing cost is increased due to complicated manufacturing.

The above-mentioned invention means the background art of the technical field to which the present invention belongs, and does not mean the prior art.

Korea Patent No. 1011354

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems of the prior art described above, and it is an object of the present invention to provide an air conditioner which prevents a foreign matter from being caught by rotation of an impeller by forming a curved wing connecting a lower panel and an upper panel, And an object thereof is to provide an impeller for a submersible pump and an underwater pump to which the impeller is applied, by which an outer surface of a wing portion is formed to be curved so that a contact area with water is increased compared to a rectangular wing portion, have.

In order to achieve the above object,

1. An impeller connected to and rotated by a drive motor installed in an underwater pump,

A lower panel having an inlet port for allowing water to flow by driving the driving motor provided in the submersible pump;

An upper panel disposed on the upper side of the lower panel and connected to a rotary shaft of a driving motor installed in the submersible pump; And

And a wing portion formed to connect the upper surface of the lower panel and the lower surface of the upper panel,

The impeller for a submerged pump having a curved blade structure is characterized in that one end of the wing portion is disposed close to the inlet port and the other end portion is curved outwardly toward the other end.

According to an embodiment of the present invention, a curved portion may be formed on the outer surface of the wing portion so as to protrude outward.

According to an embodiment of the present invention, the bottom surface of the upper panel is connected to the upper portion of the inner side surface of the wing portion by a coupling protrusion having a curved guide surface.

According to an embodiment of the present invention, the wing portion is inclined toward the inlet toward the upper portion from the lower portion.

In addition, a pressing protrusion having a pressing surface is formed on the outer surface of the wing portion at a predetermined interval, and a locking groove is further formed to be disposed between the pressing protrusions.

In order to achieve the above object,

A housing body provided with a working space therein, a pump inlet formed at a lower portion thereof to allow water to flow therethrough, and a pump outlet formed at one side thereof for discharging inflow water;

A drive motor installed inside the housing main body; And

And an impeller connected to the driving motor provided in the housing body and rotated,

And the impeller is an impeller for a submersible pump having the vane finishing structure according to the present invention.

An impeller for a submersible pump having a curved blade structure and a submerged pump to which the submerged impeller has a curved blade structure connects the lower panel and the upper panel and forms curved wings so as to prevent foreign matter from being caught by rotation of the impeller, And the outer surface of the wing portion is curved so that the contact area with water is wider than that of the rectangular wing portion, thereby improving the pumping efficiency of water.

1 is a perspective view showing an impeller for an underwater pump having a curved blade structure according to a first embodiment of the present invention.
2 is a front sectional view showing an impeller for an underwater pump having a curved blade structure according to a first embodiment of the present invention.
3 is a plan sectional view showing an impeller for an underwater pump having a curved blade structure according to a first embodiment of the present invention.
4 is a bottom cross-sectional view showing an impeller for an underwater pump having a curved blade structure according to a first embodiment of the present invention.
5 is a perspective view showing an impeller for an underwater pump having a curved blade structure according to a second embodiment of the present invention.
6 is a front sectional view showing an impeller for an underwater pump having a curved blade structure according to a second embodiment of the present invention.
7 is a view showing an impeller for an underwater pump having a curved blade structure according to a third embodiment of the present invention.
8 is a view showing an impeller for an underwater pump having a curved blade structure according to a fourth embodiment of the present invention.
9 is a view showing an impeller for an underwater pump having a curved blade structure according to a fifth embodiment of the present invention.
10 is a view showing an impeller for an underwater pump having a curved blade structure according to a sixth embodiment of the present invention.
11 is a view showing an underwater pump provided with an impeller for an underwater pump having a curved wing structure according to the present invention.

Hereinafter, preferred embodiments of an impeller for a submersible pump having a curved blade structure according to the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as an example, and various embodiments may be implemented through the present invention.

FIG. 1 is a perspective view showing an impeller for an underwater pump having a curved blade structure according to a first embodiment of the present invention, FIG. 2 is a perspective view showing an impeller for an underwater pump having a curved blade structure according to a first embodiment of the present invention, FIG. 3 is a horizontal sectional view showing an impeller for a submersible pump having a curved blade structure according to a first embodiment of the present invention, and FIG. 4 is a cross-sectional view illustrating a curved blade structure according to the first embodiment of the present invention. FIG. 5 is a perspective view showing an impeller for a submersible pump having a curved blade structure according to a second embodiment of the present invention, and FIG. 6 is a perspective view showing an impeller for an underwater pump according to a second embodiment of the present invention. FIG. 7 is a view showing an impeller for a submersible pump having a curved blade structure according to a third embodiment of the present invention, and FIG. 8 is a cross- FIG. 9 is a view showing an impeller for a submersible pump having a curved blade structure according to a fifth embodiment of the present invention, and FIG. 10 is a perspective view of a submerged pump impeller according to a fourth embodiment of the present invention. FIG. 11 is a view showing an underwater pump provided with an impeller for a submersible pump having a curved blade structure according to the present invention. FIG. 11 is a view showing an impeller for a submerged pump having a curved blade structure according to a sixth embodiment of the present invention.

As shown in the drawing, an impeller 10 for a submersible pump having a curved blade structure according to the present invention is connected to a driving motor provided in an underwater pump, and is connected to an impeller 10 10 such that the impeller 10 includes a lower panel 20, an upper panel 30, and a wing 40.

The lower panel 20 is formed in a circular panel shape and is made of a metal material. The lower panel 20 is formed with an inlet 21 having a structure penetrating through the center so that water is sucked by the impeller 10 rotated by driving the driving motor.

At this time, on the bottom surface of the lower panel 20, a tightening pipe communicating with the inlet 21 and having a threaded portion on the inner circumference is further welded, and a threaded portion is formed on the outer surface of the fastening pipe so as to communicate with the inlet 21 The coupling pipe is screwed, and the coupling pipe is formed integrally with the upper part of the conical pipe formed to be opened downward to induce the water to be introduced thereinto, and the upper surface of the conical pipe is bent in a " It is preferable to weld the lower portion of the plurality of filter pouring protrusions formed by the filter to filter the foreign matter and separate the filter pouring pipe from the fastening pipe so that the filter can be easily maintained.

The upper panel 30 is formed in a circular panel shape and is made of a metal material and is disposed at a predetermined interval on the upper side of the lower panel 20. A rotating shaft (100) of a driving motor installed inside the pump is welded or screwed to the upper surface of the upper panel (30).

The lower panel 20 and the upper panel 30 may be formed in various shapes and shapes in addition to a circular panel shape.

Further, a conical groove may be formed on the bottom surface of the upper panel 30 so as to taper downward toward the outer side with respect to the center, so that water introduced through the inlet 21 is guided along the inclined surface of the conical groove So that it is possible to improve the discharge efficiency and to prevent the inflow water from being struck and congestion of the water flow.

The lower panel 20 is connected to the lower panel 20 and the lower panel 20 is welded to the upper panel 30, The upper panel 30 and the wings 40 may be integrally formed by injection molding or casting.

3 and 4, one end of the wing portion 40 is disposed close to the inlet 21 and curved outwardly toward the other end.

In addition, it is preferable that the lower panel 20 and the panel are connected to each other so that the wing portion 40 is curved in a coil shape, and one end and the other end are arranged on the same line as in Figs. 3 and 4 .

The bottom surface of the lower panel 20 and the upper surface of the upper panel 30 are formed with grooves to prevent the weight of the impeller 10 from being biased by the wings 40, The impeller 10 is positioned at the center of the impeller 10 so that the stress is concentrated on the connecting portion between the rotating shaft 100 and the impeller 10 by being inclined at the time of rotation,

Further, a vibrator, which is a vibrator, is further welded or screwed to the upper surface of the upper panel 30 and the lower surface of the lower panel 20 to fix the impeller 10, It is preferable to easily remove it.

The impeller 10 for a submerged pump having a curved blade structure constructed as described above is mounted on the lower panel 20 of the impeller 10 when the impeller 10 is operated by a drive motor installed in the correction pump The water to be discharged flows through the formed inlet 21 and the inflow water is pushed outward along the inner side of the inner vane and flows through the impeller (not shown) between the lower panel 20 and the upper panel 30 The water in the underwater pump is discharged from the impeller 10 and is pushed outward while being pressed against the outer surface of the wing 40 of the impeller 10 to be rotated, And is discharged through an outlet.

At this time, the water inflowed by the rotating wing 40 is pushed out to the outside, and when the wing 40 is formed in a curved shape, So that the load of the driving motor is prevented from being generated.

5 and 6, a curved portion 41 is further formed on the outer surface of the wing portion 40 so as to protrude outward.

2, the curved extension portion 41 is formed on the outer surface of the wing portion 40 formed vertically so that the discharge space S between the upper panel 30 and the lower panel 20 The area of contact with water at the same height H as that of the discharge space S is wider than the wing portion 40 disposed perpendicularly to the discharge space S so that the efficiency of pushing and pushing water can be improved.

In addition, a spiral groove is formed in the inner side surface of the wing portion 40, so that when the impeller rotates, the spiral groove rubs against water and pushes water, thereby improving the discharge efficiency. It is preferable that water is discharged to pulverize suspended solids so as to prevent the pump from being clogged by suspended solids.

7, the bottom surface of the upper panel 30 is connected by a connection protrusion 31 having a curved guide surface 311 and an upper portion of the inner surface of the wing portion 40 so that the impeller 10 The water is sucked through the inlet 21 in the course of the rotation and at the same time the water is guided by the connecting protrusion 31 and moves outward along the outer wing so that the water is prevented from being stuck in the process of being stuck in the moving process, .

Referring to FIG. 8, the wing portion 40 is inclined toward the inlet 21 as it goes from the lower portion to the upper portion, and the wing portion 40 is inclined toward the inflow space S between the upper panel 30 and the lower panel 20 The area of contact with water at the same height H as the discharge space S is wider than the wing portion 40 disposed vertically so that the efficiency of pushing and pushing water is improved and the resistance with water is reduced, It is possible to prevent a load from being generated in the drive motor.

9, the wing portion 40 is inclined toward the inlet 21 as it goes from the lower portion to the upper portion, and the curved portion 41 is formed on the outer surface so that the upper panel 30, The area of contact with water at the same height H as the discharge space S is wider than the wing portion 40 which is disposed obliquely to the discharge space S between the lower panels 20, Can be improved.

10 and 11, a spiral pressing portion 42 is formed on the outer circumference of the wing portion 40 and a pressing groove portion 43 of spiral is formed on the inner circumference of the impeller 10, The pressing groove portion 43 rubs against the water to push out the water, thereby improving the discharge efficiency. In addition, it is possible to prevent the pump from being clogged by the floating matter by crushing the suspended matter discharged by discharging the water while swirling by the spiral And the water that is filled in the underwater pump by the water discharged from the impeller 10 is rubbed against the wing portion 40 of the rotating one of the pellets to be rotated and is pressed together with the rubbing against the pressing protrusions 42, Thereby improving the discharge efficiency.

12, the submersible pump 400 is provided with a working space therein, a pump inlet 310 is formed at a lower portion thereof for introducing water, and a pump outlet 320 is formed at one side thereof to discharge the introduced water A housing main body 300, a driving motor 200 installed inside the housing main body 300, and the above-described impeller 10.

The impeller for a submersible pump having a curved blade structure according to the present invention and a submerged pump to which the impeller is applied have been described in detail with reference to the drawings.

The impeller for a submersible pump having the curved blade structure according to the present invention and the underwater pump having the curved blade structure according to the present invention and the submerged pump to which the submerged pump is applied are provided with curved wings connecting the lower panel and the upper panel, forming curved portions at the wing portions, It is possible to maximize the pumping efficiency of sucking and discharging water by expanding the contact area with water.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

10: impeller 20: lower panel
30: upper panel 40: wing portion
21: Inlet
31: connecting projection 311: guide surface
41: curved portion 42:
43:
100: rotation shaft 200: drive motor
300: housing 310: pump inlet
320: pump outlet 400: submerged pump
S: Clearance H: Height

Claims (6)

1. An impeller connected to and rotated by a drive motor installed in an underwater pump,
A lower panel having an inlet port for allowing water to flow by driving the driving motor provided in the submersible pump;
An upper panel disposed on the upper side of the lower panel and connected to a rotary shaft of a driving motor installed in the submersible pump; And
And a wing portion formed to connect the upper surface of the lower panel and the lower surface of the upper panel,
The impeller for a submersible pump according to claim 1, wherein the impeller has a curved blade structure, one end of the impeller is disposed close to the inlet, and the impeller is curved outwardly toward the other end,
Wherein a curved portion is further formed on an outer surface of the wing portion so as to protrude outwardly,
The bottom surface of the upper panel is connected to the upper portion of the inner side surface of the wing portion by a connecting projection having a curved guide surface,
Wherein the wing portion is inclined toward the inlet in a direction from the lower portion to the upper portion,
A pressing projection of a spiral is formed on an outer circumference of the wing portion, a pressing groove of a spiral is formed on an inner circumference thereof,
And a coupling pipe having a threaded portion formed on an outer surface thereof is screwed to the coupling pipe so as to communicate with the inlet port, the coupling pipe being connected to the inlet port, The upper part of the conical tube formed so as to extend downward to induce the incoming water is integrally formed so as to communicate with the upper part of the conical tube, and the lower part of the plurality of the water droplets formed in the " So that foreign substances can be filtered out and separated from the fastening pipe so as to be easily maintained,
A conical groove is formed in the bottom surface of the upper panel so as to taper downward toward the outer side with respect to the center, water introduced through the inlet is guided along the inclined surface of the conical groove, And,
Wherein a vibrator that is a vibrator is further welded or screwed to the upper surface of the upper panel and the lower surface of the lower panel so that floating matters or foreign substances sticking to the impeller are removed by vibration of the vibrator. The impeller for an underwater pump. delete delete delete delete delete

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