KR101297418B1 - Pump - Google Patents

Abstract

The present invention relates to a two-way pump of the two-discharge discharge method, and more particularly, a filtration unit including an inlet and a case in which the filter is built; A pumping part including a water hole, an outlet part, a pump housing in which an impeller is embedded, and a motor housing in which a motor is embedded; An inflow portion protruding into the pump housing, an inflow portion protruding inward of the pump housing, an inflow portion arranged on both sides of the induction portion, and communicating with the outflow portion, and first and second discharge ports connected to the inflow portion; And ejection means embedded in the oil compartment and including opening and closing balls for opening and closing the first or second discharge ports.
Therefore, the present invention has an asymmetric structure in which each discharge port has a different aperture, so that the pump can be operated more efficiently by discharging a different amount of fluid. In case of operation, the internal pressure of the discharge port is reduced to reduce the fatigue degree of the discharge port, thereby increasing the durability of the product and thereby supplying the discharge amount quantitatively. It is possible to improve the quality of the product by blocking the generation of noise, it is also characterized in that the structure of the pump is simple and easy to manufacture to increase the productivity and economy.

Description

Two-way pump with dual discharge method {PUMP}

The present invention relates to a pump used in a washing machine, a dish washer, etc., each discharge port is formed in an asymmetrical structure having a different diameter, it is possible to operate the pump more efficiently by discharging different amounts of fluid, and also bypass pipe When the overpressure is applied to the discharge port during the discharge of the fluid by reducing the internal pressure of the discharge port to reduce the fatigue of the discharge port to increase the durability of the product, thereby not only can supply the discharge amount quantitatively, the opening and closing operation of the opening and closing ball It is possible to improve the quality of the product by blocking the generation of noise due to the vibration due to the pressure difference of the visual discharge port, it is also characterized in that the structure of the pump is simple and easy to manufacture to increase the productivity and economy.

Conventional bidirectional discharge pump is disclosed in Republic of Korea Patent Publication No. 1997-0001764 (1997.02.15. Hereinafter 'prior art') "three-way pump that the outlet is adjusted by forward, reverse rotation" is disclosed. .

The prior art is fixed to the diaphragm plate is provided with an inlet hole and a through hole through which the fluid is introduced into the body in place, and the rotating plate of the elastic material provided with the ball and the feather is rotatably fixed to the diaphragm, forward and backward in front of the rotating plate An impeller driven by a rotary motor is disposed, and an impeller driven by a motor that rotates forward and reverse by providing an exit space that is selectively opened and closed by the ball on both sides of the upper end of the body and providing a moving space of the ball. Is optionally configured to automatically adjust the two outlets using centrifugal and rotational forces applied to the fluid.

However, in the conventional art, when the fluid is selectively discharged to each outlet by the high speed rotation of the motor, overpressure may occur at each outlet.

In this case, when the overpressure occurs, each outlet is overloaded, and when such an overpressure state lasts for a long time, each outlet has a problem that the fatigue accumulates and becomes weak or damaged, and the ball valve is exactly the inlet of the discharge port. Vibration occurs because it does not block, such a vibration generates a noise, the situation that the defect of the product is generated by not accurately discharge the quantity.

Therefore, there is an urgent need for the development of a pump that can solve the conventional problems as described above to ensure more product quality and reliability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

It relates to a pump used in a washing machine, dishwasher, etc., each discharge port is formed of an asymmetrical structure having a different diameter, it is possible to operate the pump more efficiently by discharging different amounts of fluid,

In addition, when the overpressure is applied to the discharge port when the bypass pipe is provided, the internal pressure of the discharge port is reduced to reduce the fatigue of the discharge port, thereby increasing the durability of the product.

In addition, it is possible not only to supply the discharge amount quantitatively, but also to improve the quality of the product by blocking the generation of noise due to the vibration caused by the pressure difference of each discharge port during opening and closing operation of the opening and closing ball. One purpose is to increase the productivity and economical efficiency is easy.

In addition, the present invention is provided with a coupling means for connecting each discharge port and the coupling port provided in the oil compartment, the coupling means is provided with a sealing member for maintaining the airtight to increase the reliability of the pump by preventing leakage,

In addition, by enabling the separate mounting between the coupling port and each discharge port by the coupling means can be used to replace the discharge port of various diameters from time to time to improve the utilization of the pump is another object.

Furthermore, the present invention is to further improve the durability of the motor housing by increasing the reliability of the product by providing a reinforcement to the motor housing is provided with a reinforcing bar is continuously receiving the pumping pressure to weaken.

Two-way pump of the two-way discharge method according to the invention is connected to the inlet, the inlet, the filtration unit including a case in which the filter is built-in; A pumping part including a water passage communicating with the case of the filtering part, an outlet part formed in one direction, a pump housing in which an impeller is built, and a motor housing connected to the pump housing and incorporating a motor; The discharge means protrudes inwardly of the pump housing to divide the outlet portion of the pump housing in both directions, arranged on both sides of the induction portion, the loss portion is in communication with the outlet portion, is connected to the loss portion, And discharge means including first and second discharge ports protrudingly arranged in both directions, and opening / closing balls embedded in the oil chamber, and opening and closing balls for selectively opening and closing the first or second discharge holes.

The first discharge port and the second discharge port of the discharge means has an asymmetric structure composed of different apertures,

A discharge means for reducing the pressure inside the discharge port is further provided on the discharge port side of the discharge port of the discharge means having a smaller diameter.

The bypass means according to the present invention is characterized in that the size of the outlet portion communicating with the outlet having the small diameter is expanded than the size of the outlet portion communicating with the outlet of the other side.

The bypass means according to the present invention is characterized in that it is composed of a bypass tube which is drawn out from the discharge port having a small diameter among the discharge ports of the discharge means, and is led to the case of the filter portion.

Coupling means is further provided for connecting the first discharge port or the second discharge port of the discharge means according to the invention, or both of them in the lost portion,

The coupling means includes a coupling protrusion protruding in both directions of the loss portion, a coupling protrusion of a rectangular shape formed in the coupling sphere, and formed in an segmented form, and formed on an outer side surface of each discharge port, and the coupling protrusion being inserted therein. It is provided on the coupling groove, the outer surface of the discharge port or the inner surface of the coupler, and comprises a first sealing member for airtight.

A protective cap is further provided to cover the upper portion of the discharge portion of the discharge means according to the present invention,

Insertion protrusions are formed in the upper surface of the loss portion in the inward direction,

The upper portion of the protective cap is formed with a flange, the lower portion of the flange portion is provided with an insertion groove for receiving the insertion projections,

The insertion groove is provided with a second sealing member, characterized in that the second sealing member is arranged in close contact with the upper end of the insertion protrusion and the upper surface of the insertion groove.

Two-way pump of the two-discharge discharge method according to the present invention relates to a pump used in a washing machine, a dish washer, etc., each discharge port is made of an asymmetric structure consisting of different apertures to discharge the different amount of fluid to operate the pump more efficiently Can do it,

In addition, when the overpressure is applied to the discharge port when the bypass pipe is provided, the internal pressure of the discharge port is reduced to reduce the fatigue of the discharge port, thereby increasing the durability of the product.

In addition, it is possible not only to supply the discharge amount quantitatively, but also to improve the quality of the product by blocking the generation of noise due to the vibration caused by the pressure difference of each discharge port during opening and closing operation of the opening and closing ball. Easy to manufacture can increase productivity and economics.

In addition, the present invention is provided with a coupling means for connecting each discharge port and the coupling port provided in the oil compartment, the coupling means is provided with a sealing member for maintaining the airtight to increase the reliability of the pump by preventing leakage,

In addition, it is possible to separate and replace the discharge port of the various apertures by using the coupling means between the coupling port and each discharge port can be used at any time can be used to increase the utilization of the pump.

Furthermore, the present invention is provided with a reinforcing bar in the motor housing, thereby improving the durability of the motor housing by increasing the durability of the motor housing by reinforcing the vulnerable parts under continuous pumping pressure, thereby increasing the reliability of the product.

1 is a cross-sectional view showing a first embodiment of a two-way pump of two-way discharge according to the present invention;
2 and 3 are side views showing a first embodiment of the two-way pump of the two-discharge discharge method;
Figure 4 is a front view showing a first embodiment of the two-way pump of two-way discharge method according to the present invention,
5 to 8 are a side view, a cross-sectional view and a front view showing a second embodiment of the two-way pump of two-way discharge according to the present invention.

Hereinafter will be described with reference to the accompanying drawings, a two-way pump of two-way discharge method according to the present invention.

As shown in Figure 1 to 8 bi-directional pump of the two-way discharge method according to the present invention

A filtration unit 10 connected to an inlet port 11a and the inlet port 11a and including a case 11 in which a filter is built; A water passage 21a communicating with the case 11 of the filtration unit 10, an outlet portion 21b is formed at one side, a pump housing 21 having an impeller built therein, and the pump housing 21. A pumping part 20 connected to the pump and including a motor housing 23 in which the motor 27 is built-in; An induction part 32 which protrudes inwardly of the pump housing 21 and divides the outlet portion 21b of the pump housing 21 in both directions, and is arranged at both sides of the induction portion 32, and the outlet portion ( 21b), the first and second discharge ports 33 and 35, which are connected to the oil chamber 31, protrudingly arranged in both directions and connected to the oil chamber 31, are embedded in the oil chamber 31 And discharge means (30) including an opening and closing ball (37) for selectively opening and closing the first discharge port (33) or the second discharge port (35).

As shown in Figure 1 to 8 in the two-way pump according to the present invention, the filtration unit 10

The incoming fluid is filtered by a filter to serve to supply the fluid to the pumping unit 20.

The filtration unit 10 is provided with a case 11 in which a filter (not shown) is built, and an inlet 11a for connecting a pipe or a hose and the case 11 to one side of the case 11,

The case 11 is connected to the water passage 21a formed in the pump housing 21 of the pumping unit 20 to filter the fluid flowing through the inlet 11a with a filter, and then pump the filtered fluid. It is discharged to (20) and supplied.

In addition, the mounting portion 13 is provided on the other side of the case 11,

A coupling hole 13a is formed in the mounting portion 13 to fix or pump the pump, thereby installing the pump by inserting a bolt or a piece into the coupling hole 13a at a connection portion formed at an installation place. I can attach it in place.

In addition, the support bracket 15 is provided at the lower portion of the outer side of the case 11 so that when the pump is installed, the support bracket 15 is mounted at the installation place or the case is supported by supporting the case. It is desirable to be able to remain stable.

Furthermore, the diameter of the inlet 11a is formed smaller than the diameter of the case 11,

Therefore, a plurality of reinforcing protrusions 11b are formed at a portion where the inlet 11a and the case 11 are connected to each other so as to resist the shock caused by the hydraulic pressure difference caused by the change of the flow path size, thereby increasing the strength of the inlet 11a. It is desirable to improve the durability by reinforcing.

1 to 8, in the two-way pump according to the present invention, the pumping unit 20 is

It serves to pump the fluid introduced from the filtration unit 10 to the discharge means (30).

The pumping unit 20 has a water passage 21a communicating with the case 11 of the filtration unit 10 and an outlet 21b formed at one side thereof, and a pump housing having an impeller 25 built therein ( 21),

It is connected to the pump housing 21, and comprises a motor housing 23, the motor 27 is built.

First, the motor 27 is built into the motor housing 23 of the genital pumping unit 20.

The motor 27 preferably uses a BLDC motor (Brushless DC motor), but it is not necessary to use a BLDC motor,

In addition, the motor 27 should be used that can be rotated in both directions.

In addition, an impeller 25 connected to the drive shaft of the motor 27 is embedded in the pump housing 21 to rotate by driving of the motor 27 to pump the high pressure pumping pressure inside the pump housing 21. Will form.

Next, in the pump housing 21 of the pumping unit 20, the water passage 21a is formed in the center and is in communication with the case 11 of the filtration unit 10 and flows into the case 11. Fluid is introduced into the loss part 31 by the pumping pressure formed by the impeller 25.

This is the outlet portion 21b of the pump housing 21 is formed in one direction of the inner side of the pump housing 21,

The outlet portion 21b is arranged in both directions by the induction portion 32 of the discharge means 30,

In addition, each outlet 21b is in communication with the loss chamber 31 arranged on both sides of the guide portion 32 of the discharge means 30, the fluid is discharged from the outlet 21b by the pumping pressure of the impeller 25 It is introduced into the loss part (31).

Furthermore, the outer surface of the motor housing 23 is further provided with a plurality of reinforcement (23a) for reinforcing the strength around the coupling portion with the pump housing 21,

The pumping chamber, which is a space in which the impeller 25 is arranged, is subjected to a high pressure pumping pressure,

At this time, the corresponding portion of the motor housing 23 in which the pumping chamber is located becomes vulnerable due to the concentration of accumulated pressure due to the pumping pressure.

Therefore, it is preferable to form a plurality of reinforcing bars 23a at corresponding portions of the motor housing 23 in which the pumping chamber is located, thereby reinforcing the strength of the motor housing 23 to improve and maintain the durability of the product. Do.

In addition, the reinforcing bar (23a) is formed around the coupling portion with the pump housing 21, disassemble and assemble the pump housing 21 and the motor housing 23 of the pumping unit 20 for maintenance of the pump If the case is to be reinforced by the resistance to the external force applied to the coupling portion of the pump housing 21 and the motor housing 23 can be obtained an additional effect of preventing damage or damage to the motor housing (23).

1 to 8, in the two-way pump of the two-discharge discharge method according to the present invention, the discharge means 30 is

The fluid flowing by the pumping unit 20 is selectively opened and closed by the opening and closing ball 37 to discharge the fluid.

The discharge means 30 is projected in the inward direction of the pump housing 21 and the induction part 32 for dividing the outlet portion 21b of the pump housing 21 in both directions,

A loss part 31 arranged on both sides of the induction part 32 and in communication with the outlet part 21b;

First and second discharge ports 33 and 35 connected to the loss part 31 and protruded in both directions;

It is built in the loss portion 31, and comprises an opening and closing ball 37 for selectively opening and closing the first discharge port 33 or the second discharge port (35).

First, the induction part 32 protrudes in the inward direction of the pump housing 21 to inject fluid into one outlet part 21b according to the rotational direction of the impeller 25.

At this time, the loss portion 31 is in communication with each of the outlet portion (21b) is the fluid flows through the outlet portion 21b for the fluid flow.

In this way, the fluid introduced through the loss portion 21b pushes the opening / closing balls 37 arranged in the upper space where the respective loss portions 31 communicate with each other in the inflow direction to close the discharge port on the opposite side, and at the same time the inflow of the fluid The discharge port located in the direction is opened so that the fluid is discharged through the discharge port.

That is, when the impeller rotates in a counterclockwise direction as shown in FIGS. 1 and 7, the induction part 32 induces a fluid to flow into the loss part 31 provided with the second discharge hole 35.

On the contrary, when the impeller rotates in the clockwise direction, the induction part 32 guides the fluid to flow into the oil loss part 31 provided with the first discharge port 33.

Therefore, the induction part 32 guides the fluid in one direction according to the rotational direction of the impeller 25 to each outlet part 21b of the pumping part 20 and the respective loss parts 31 to open and close the ball 37. ) By the fluid pressure it is possible to selectively open and close the outlet (33, 35).

In this case, the opening and closing ball 37 is preferable to use a material such as rubber or elastomer, so as to have a constant elasticity,

This is to ensure the sealing performance more securely so that the opening and closing ball 37 to be in close contact with the inlet of each discharge port by the elasticity when closing the discharge holes 33, 35.

In addition, the discharge ports 33 and 35 are formed to have different apertures, so as to not only vary the discharge amount of the fluid,

When the fluid is discharged with the same force, the discharge pressures received by the respective discharge ports 33 and 35 are mutually different.

That is, when the diameter of the second discharge port 35 is smaller than the diameter of the first discharge port 33 among the discharge ports 33 and 35, the pressure is inversely proportional to the cross-sectional area.

When the fluid is discharged with the same force, the working pressure on the side of the second discharge port 35 having a smaller aperture, that is, the cross-sectional area of the discharge hole, becomes larger.

At this time, the second discharge port 35 may be overloaded by a strong working pressure, and it is necessary to adjust the discharge amount of the fluid,

To this end, in the present invention, the bypass means 60 is provided to reduce the pressure inside the second discharge port 35 having a small diameter in the discharge means.

As the bypass means 60 according to the present invention, two implementation examples are introduced,

First, as shown in FIG. 1, in the first embodiment, the size D2 of the outlet part 60 (21b) and / or the loss part 31 communicating with the second outlet port 35 is determined by the first outlet port. And expands the fluid volume bypassed by the impeller so as to expand than the size D1 of the outlet portion 21b and / or the loss portion 31 in communication with the 33 to reduce the pressure inside the second outlet. do.

That is, the size of the outlet 60 (21b) and / or the loss part 31 communicating with the second outlet 35 is the outlet 21b communicating with the first outlet 33 and / Alternatively, the discharge pressure through the outlet portion 60 (21b) communicating with the second discharge port 35 is relatively smaller than the size D1 of the loss portion 31.

Since the pressure is inversely proportional to the unit area, the amount of fluid flowing into the outlet portion 60 (21b) and / or the lost portion 31 in communication with the second discharge port 35 decreases, while the impeller 25 is reduced. By increasing the amount of the fluid bypassed by the pressure inside the second discharge port is lowered to reduce the pressure.

Next, as shown in FIGS. 5 to 8, in the second embodiment, the discharge means 30 is withdrawn from the second discharge port 35 having a small diameter, and is transferred to the case 11 of the filtration unit 10. By introducing the bypass pipe 60 is drawn in to bypass the fluid to reduce the pressure inside the second discharge port (35).

That is, the bypass pipe 60 branches the predetermined amount of fluid flowing into the second discharge port 35 to bypass the case 11 to reduce the pressure inside the second discharge port 35. It is possible to lower the operating pressure of the second discharge port 35 to a certain level.

Therefore, by adjusting the working pressure inside the second discharge port 35 by the vise pipe 60, it is possible to operate the pump more efficiently by adjusting the pressure of the discharge water or the discharge amount.

And a coupling means 40 for connecting the first discharge port 33 or the second discharge port 35 of the discharge means 30, or both of them to the loss part 31.

The coupling means 40 is a coupling protrusion 41 protruding in both directions of the loss portion 31, the coupling protrusion 43 formed in the coupling sphere 41, and formed in a segmented form and And a coupling groove 45 formed at an outer side surface of each of the discharge holes, and allowing the coupling protrusion 43 to be inserted therein, and an end portion of the discharge hole being provided with an annular receiving groove 47. It comprises a first sealing member 49 is mounted on the).

That is, the coupling means 40 firmly couples the discharge holes and the coupling holes 41,

In addition, the first sealing member 49 is provided after each of the discharge holes and the coupling holes 41 are coupled to each other, thereby ensuring watertightness when the fluid flows. It is desirable not to occur.

In addition, the coupling means 40 may be configured such that each discharge port can be mounted separately from the respective coupling port 41,

In this case, the coupling protrusions 43 and the coupling grooves 45 are manufactured in a segmented form so as to correspond to each other. After positioning between the projections 43,

It is preferable to rotate the discharge holes in a direction by one angle so that the coupling protrusions 43 are inserted into or separated from the coupling grooves 45 so that the discharge holes can be separated or mounted from the coupling holes 41. Do.

Furthermore, there is further provided a protective cap 50 for covering the upper portion of the loss part 31 of the discharge means 30 according to the present invention,

Insertion protrusions (31a) are formed in the upper surface of the loss portion 31 in the inward direction,

A flange portion 51 is formed at an upper portion of the protective cap 50, and a receiving groove 47 for accommodating the insertion protrusion 31 a is formed at a lower portion of the flange portion 51.

The insertion groove 53 is provided with a second sealing member 55, and the second sealing member 55 is arranged in close contact with the upper end of the insertion protrusion 31a and the upper surface of the insertion groove 53.

That is, the protective cap 50 covers the upper portion of the loss part 31 to prevent the opening and closing ball 37 is separated and separated,

In addition, the insertion protrusion 31a is inserted into the insertion groove 53.

At this time, the second sealing member 55 is in close contact with the upper end of the insertion projection (31a) and the upper surface of the insertion groove 53, when the fluid flows, the fluid is the loss portion 31 and the protective cap 50 It is possible to guarantee the reliability of the product by preventing leakage at the connection part of.

In addition, a plurality of connection holes 51a are formed in the flange portion 51 of the protective cap 50, and a connection protrusion 31b having a thread formed therein is formed on an outer surface of the loss part 31 so as to form a screw or the like. It is fastened by a bolt and the protective cap 50 and the loss part 31 is firmly fixed.

In the above description with reference to the accompanying drawings, the present invention has been described based on a specific shape and direction in the two-way pump of the two-discharge discharge method, the present invention can be variously modified and changed by those skilled in the art, such modifications and changes are present invention It should be construed as being included in the scope of the right.

10: filtration unit 11: case
11a: inlet 11b: reinforcing protrusions
13 mounting portion 13a: coupling hole
15: support bracket
20: pumping unit 21: pump housing
21a: water hole 21b: outlet
23: motor housing 23a: reinforcement
25 impeller 27 motor
30 discharge means 31 lost part
31a: Insertion protrusion 31b: Connection protrusion
32: guide portion 33: first discharge port
35: second discharge port 37: opening and closing ball
40: coupling means 41: coupling sphere
43: coupling protrusion 45: coupling groove
47: receiving groove 49: the first sealing member
50: protective cap 51: flange
51a: connecting hole 53: insertion groove
55: second sealing member
60: bypass means

Claims (4)

A filtration unit connected to the inlet and the inlet and including a case in which a filter is built;
A water supply hole communicating with the case of the filtration part, a pump housing in which an outlet part is formed in one side, and an impeller is built in;
A pumping unit connected to the pump housing and including a motor housing in which a motor is embedded;

An induction part which protrudes inwardly of the pump housing and divides an outlet portion of the pump housing in both directions;
Arranged on both sides of the induction part, and a loss part communicating with the outlet part;
First and second discharge ports connected to the loss part and protrudingly arranged in both directions;
And a discharge means built in the loss part and including an opening and closing ball for selectively opening and closing the first discharge port or the second discharge port.

The first discharge port and the second discharge port of the discharge means has an asymmetric structure composed of different apertures,
Two-way pump of the two-way discharge method characterized in that the bypass means for reducing the pressure in the discharge port is further provided in the discharge port of the discharge port of the discharge means having a smaller diameter. The method of claim 1, wherein the bypass means
The size of the outlet portion communicating with the outlet having a smaller diameter is configured to be expanded than the size of the outlet portion communicating with the outlet of the other side. Two-way pump of two-way discharge method characterized in. The method of claim 1, wherein the bypass means
A two-way pump of a two-way discharge type, characterized in that it is composed of a bypass pipe drawn out from the discharge port having a small diameter among the discharge ports of the discharge means and drawn into the case of the filter part. The method according to any one of claims 1 to 3,
Coupling means is further provided for connecting the first discharge port or the second discharge port of the discharge means, or both of them to the loss portion,

The coupling means
A coupler protruding in both directions of the loss part,
Formed in the coupling sphere, the coupling protrusion of the rectangular shape made of a segmented form,
Coupling grooves formed on the outer surface of each discharge port, the coupling projections can be inserted;
Is provided on the outer surface of the discharge port or the inner surface of the coupler, and comprises a first sealing member for airtight,

A protective cap is further provided to cover the upper portion of the discharge portion of the discharge means,
Insertion protrusions are formed in the upper surface of the loss portion in the inward direction,
The upper portion of the protective cap is formed with a flange, the lower portion of the flange portion is provided with an insertion groove for receiving the insertion projections,
The insertion groove is provided with a second sealing member, the second sealing member is a two-way pump of the two-way discharge method characterized in that the close contact arranged on the upper end of the insertion projection and the upper surface of the insertion groove.

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