KR20110108203A - Dishwasher - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly, to a dishwasher in which a restrained state that cannot be changed when the nozzle to which the washing water is injected is changed is effectively prevented.
According to the present invention, in a dishwasher having a flow control valve for guiding washing water from the main flow passage to the upper flow passage or the lower flow passage, the flow passage control valve includes a first opening along a circumferential direction between the upper wall and the lower wall. And a blocking portion is provided to selectively block the second opening portion and the upper passage or the lower passage, and protrudes from at least one of the upper wall and the lower wall to selectively block the upper passage or the lower passage together with the blocking portion. Dishwasher is provided, characterized in that it comprises a blocking rib provided to.

Description

Dishwasher {Dishwasher}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly, to a dishwasher in which a restrained state that cannot be changed when the nozzle to which the washing water is injected is changed is effectively prevented.

In general, a dishwasher means a machine that automatically washes dishes. The dishwasher performs the functions of washing, rinsing, drying and storing the dishes. Thus, by helping to reduce domestic labor, its prevalence has increased significantly in recent years.

The washing method of the dishwasher is largely divided into a shower type and an ultrasonic type, and the shower type is mainly used at home. In the shower type, the hot water dissolved in detergent in the dishware contained in the dish basket is strongly sprayed and washed. There are two methods of spraying water: a propeller, a method of spinning a hole through a lot of holes in the pipe, and the like.

Referring to Figure 1, briefly described the important components of the conventional dishwasher as follows.

The conventional dishwasher includes a water collecting unit 1 for collecting wash water, a power generating unit 2 for driving the water collecting unit, and upper and lower nozzles 3 and 4 for spraying the washing water introduced from the water collecting unit 1. It is configured to include.

The water collecting unit 1 is provided with a main water collecting unit 1a for receiving water for washing the dish from the outside or collecting and discharging the contaminated water after washing the dish. In addition, a flow path forming part 1b having a flow path for moving the washing water circulated in the dishwasher to the upper and lower nozzles is installed at the upper portion of the main water collecting part 1a. The passage forming unit 1b is connected to a filtering unit 1c for filtering the washing water to remove dirt. The power generator 2 operates a pump to supply washing water to the upper and lower nozzles 3 and 4 during dish washing.

The upper and lower nozzles 3 and 4 drop the contaminants attached to the dirty dishes by spraying the washing water supplied from the water collecting unit 1 to wash the dishes.

Referring to the operation of the conventional dishwasher sequentially.

First, put the dishes to be washed in the dish basket and input the desired stroke. Then, the washing water is filled at the predetermined water level in the main water collecting part 1a of the dishwasher by a water supply valve connected to the outside of the dishwasher. After that, the heater is driven to heat the supplied wash water, and the pump is operated. The heated wash water is then moved by the pump to the upper and lower nozzles 3 and 4 via a connecting tube to remove dirt from the surface of the dishes.

After washing the dishes, the dirt and washing water separated from the dishes are collected in the main collecting part. At this time, if the degree of contamination is measured by measuring the degree of contamination of the wash water is discharged through the drain pump wash water mixed with dirt and clean water is supplied from the outside. However, when the degree of contamination is below a certain level, the washing water collected in the main catchment is purified and then moved to the upper and lower nozzles by a pump. After the washing is finished, the washing water collected in the main collecting part is discharged to the outside together with the dirt.

In general, the flow path forming unit 1b includes a flow path control valve. The flow control valve acts to selectively guide the washing water of the main catchment 1a to the upper nozzle 3 or the lower nozzle 4. The flow path forming unit 1b includes a housing forming a flow path, and the flow path control valve is provided inside the housing.

Hereinafter, a conventional flow control valve will be described with reference to FIGS. 2 to 6.

2 and 3 illustrate an example of a housing forming the aforementioned flow path, and FIGS. 4 to 6 illustrate a conventional flow control valve.

The flow path forming unit 1b may include a flow path housing, which may include a lower housing 200 and an upper housing 300. 2 illustrates an upper surface of the lower housing 200, and FIG. 3 illustrates a lower surface of the upper housing 300. Therefore, a lower surface of the upper housing may be coupled to an upper surface of the lower housing to form a flow path. Here, the flow path is the main flow passages 211 and 311 communicating with the main water collecting part 1a, the upper flow passages 213 and 313 communicating with the upper nozzle 3 and the upper flow passages 212 and 312 communicating with the lower nozzle 4. )

The lower housing 200 and the upper housing 300 are respectively provided with seating parts 250 and 350 in which flow path control valves 50 (see FIGS. 3 to 5) are positioned. A through hole 220 is formed in the center of the seating part 250 of the lower housing 200 so that the flow path control valve 50 is rotatably supported, and a groove is provided in the seating part 350 of the upper housing 300. 320 is formed. Therefore, the flow path control valve 50 is rotatably supported between the seating portions 250 and 350.

Here, if the lower housing 200 and the upper housing 300 forms a flow path housing, the seating portions 250 and 350 may be referred to as a seating portion formed in the flow path housing. That is, it may be referred to as a seating portion for seating the flow path control valve 50.

On the other hand, the seating portion 250, 350 is formed in a cylindrical shape corresponding to the shape of the flow path control valve 50, a portion of the side is open to form the flow path, respectively. In addition, the seating part 250 is in contact with the lower wall of the flow path control valve 50, as described below, and the seating part 350 is in contact with the top wall of the flow path control valve 50.

As shown in FIGS. 4 to 6, the conventional flow control valve 50 is formed in a cylindrical shape and includes an upper wall 51, a side wall 53, and a lower wall 52. The side wall 53 is formed to block only a part of the space between the upper wall 51 and the lower wall 52. In addition, a first open part 54 and a second open part 55 are formed on side surfaces of the flow path control valve 50. A partition wall (not shown) is formed between the first open part 54 and the second open part 55, and the partition wall is formed to face the side wall 53.

A protrusion 56 ′ inserted into the groove 320 of the upper housing is formed at the center of the upper wall 51, and a shaft 56 is formed at the center of the lower wall 52, and at the center of the shaft. A groove 57 is formed to be connected to the driving unit for rotating the flow path control valve 50. In addition, the shaft 56 is inserted into the through hole 220 of the lower housing 200.

The upper wall 51 and the lower wall 52 are formed in a circular shape, and side walls and partition walls are formed to have the same outer diameter of the upper wall and the lower wall.

The flow path control valve 50 is rotated in the seating parts 250 and 350, the flow path is changed according to the position.

First, at the position where the side wall 58 blocks the flow paths 213 and 313, the washing water of the water collecting part 1a flows in through the first opening part 54 to lower the nozzle 4 through the second opening part 55. Washing water is supplied. At the position where the side wall 53 blocks the flow paths 212 and 312, the washing water of the water collecting part 1a is introduced through the second opening part 55, and the upper nozzle 3 is disposed through the first opening part 54. Washing water is supplied. Here, a vertical wall 58 is formed at the radially inner side of the side wall to reduce the resistance of the inner flow path of the flow control valve 50. Therefore, an empty space is formed between the side wall 53 and the vertical wall 58 as shown in FIG.

However, the above conventional dishwasher has the following problems.

The washing water contains a large amount of foreign matter of a small size that can not be filtered by the filtering unit may interfere with the smooth movement of the washing water. For example, a large amount of grains of sand having a diameter of 2 mm or less may be introduced into the dishwasher, and broken glass fragments may also be present in the dishwasher. These foreign matters are not easily broken because of their hardness.

In the conventional flow control valve, the upper wall 51 and the lower wall 52 make surface contact with the upper and lower surfaces of the seating parts 250 and 350. Therefore, foreign matter enters the surface contacting portion, and there is much room for the rotation of the flow path control valve to be restricted.

In addition, the side wall 53 and the partition wall 52 described above are in surface contact with the side surface of the seating portion. Therefore, foreign matter is introduced into the surface contact portion, there is a lot of room to restrict the rotation of the flow path control valve.

In addition, the side surface 59 of the upper wall 51 and the lower wall 52 is also in contact with the side surface of the seating portion.

That is, in the conventional flow control valve, the upper wall 51 and the lower wall 52 contact the upper and lower surfaces of the seating portion, and the side wall 53 and the partition wall 52 and the side surfaces 59 of the upper wall and the lower wall are It comes into contact with the side of the seat. Therefore, since the contact area is very large, the possibility of being constrained is very high.

This problem may occur more easily because the flow control valve is somewhat symmetrical with respect to the center of rotation. Because foreign matter gets stuck in one part, the center of rotation is shifted. Therefore, the flow control valve is pressed on the seating portion on the opposite side of the foreign matter is more difficult to rotate.

Therefore, in the related art, foreign matters are caught between the seating parts 250 and 350 and the flow path control valve 50, and thus, the rotation of the flow path control valve is often restricted. Due to this, although the washing water should be provided alternately to the upper or lower nozzles, there may be a problem that the upper or lower nozzles are constrained so that the washing water is supplied only to one nozzle.

If the washing water is not sprayed to the nozzle set according to the stroke of the dishwasher, the dish washing is not performed smoothly, and the user is dissatisfied with the function of the product.

Korean Patent Application No. 10-2008-0013915 discloses a control method for preventing the restriction of the flow path control valve. However, this control method can prevent the flow control valve to some extent, but it is insufficient to solve the fundamental problem.

The present invention is to solve the above problems, an object of the present invention is to provide a dishwasher that can effectively prevent the restrained state that can not be changed when the nozzle to which the washing water is changed.

In order to achieve the above object, the present invention provides a dishwasher having a flow path control valve for guiding the washing water from the main flow path to the upper flow path or the lower flow path, the flow control valve and the seating portion on which the flow path control valve is seated. Provide a dishwasher with significantly reduced contact area.

The flow control valve may include an upper wall or a lower wall, and blocking ribs may be provided on the upper wall and the lower wall. The blocking rib may be provided to selectively open or close the upper passage or the lower passage between the upper wall or the lower wall and the seating portion.

The flow control valve may be provided with a blocking portion to selectively block the first opening portion, the second opening portion and the upper passage or the lower passage in the circumferential direction between the upper wall and the lower wall. The blocking portion selectively blocks the upper passage or the lower passage in the passage control valve. Therefore, the blocking rib together with the blocking portion is provided to selectively block the upper passage or the lower passage.

Here, the blocking rib is provided to contact the lower surface or the upper surface of the seating portion. Thus, the upper wall or the lower wall is prevented from directly contacting the lower surface or the upper surface. Therefore, the contact area can be significantly reduced.

The side surface of the flow path control valve is partitioned in the order of the first opening, the second opening and the clogging in the circumferential direction, and the first opening and the second opening are formed on the side of the flow control valve between the upper wall and the lower wall. A partition wall for partitioning may be provided.

Here, the blocking rib may be provided at a position corresponding to the partition wall.

An outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening may be smaller than an outer diameter of the upper wall and the lower wall corresponding to the blocking portion. Therefore, the area where the side surfaces of the upper wall and the lower wall and the side surface of the seat portion contact each other can be significantly reduced.

The upper wall and the lower wall may be formed in a circular shape, a part of which is cut in the tangential direction, and the blocking part may include a vertical wall provided at the cutout of the upper wall and the lower wall. The blockage part may include sidewalls provided on both sides of the vertical wall. That is, it is preferable that a space is formed between the side wall and the side wall. This is to significantly reduce the area where the side wall and the side of the seat contact.

The outer diameter of the upper wall and the lower wall corresponding to the sidewall is preferably larger than the outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening.

The blocking rib may include a radial rib formed in the radial direction and a circumferential rib formed in the circumferential direction. The radial ribs may include a pair of ribs that form an angle of 110 degrees to 130 degrees.

In order to achieve the above object, the present invention also provides a flow path housing for forming a main flow path, an upper flow path and a lower flow path; And a flow path control valve rotatably provided at a seating portion of the flow path housing, the flow control valve guiding the washing water flowing into the main flow path to either the upper flow path or the lower flow path, wherein the flow path control valve includes an upper wall and A blocking portion is provided to selectively block the first opening portion, the second opening portion, and the upper flow path or the lower flow path in the circumferential direction between the lower walls, and protrude from at least one of the upper wall and the lower wall. And it can be provided with a dishwasher comprising a blocking rib provided to selectively block the upper passage or the lower passage.

The blocking rib may be provided to selectively block the upper flow path or the lower flow path between the upper wall and the lower surface of the seating portion or between the lower wall and the lower surface of the seating portion.

The blockage part may include a vertical wall selectively blocking the upper flow path or the lower flow path from the inside of the flow control valve. And the blocking portion includes a side wall selectively blocking the upper flow path or the lower flow path from the outside of the flow control valve. That is, the side wall may be provided to selectively block the upper passage or the lower passage between the outside of the flow control valve and the side of the seating portion.

Preferably, the side walls are provided on both sides of the vertical wall, and the outer diameter of the side wall is larger than the outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening.

In order to achieve the above object, the present invention also provides a flow path housing for forming a main flow path, an upper flow path and a lower flow path; And a flow path control valve rotatably provided at a seating portion of the flow path housing, the flow control valve guiding the washing water flowing into the main flow path to either the upper flow path or the lower flow path. A vertical wall provided to selectively block the upper flow path or the lower flow path; A first opening and a second opening provided to discharge the washing water and the washing water introduced therein; And side walls formed with outer diameters greater than outer diameters of the first opening portion and the second opening portion on both sides of the vertical wall so as to selectively block the upper flow passage or the lower flow passage between the outside of the flow control valve and the side surface of the seating portion. It can provide a dishwasher characterized in that it comprises.

A blocking rib may be provided to selectively block the upper flow path or the lower flow path between the outside of the flow path control valve and the upper or lower surface of the seating part.

According to the present invention, the washing water can be smoothly sprayed to the upper or lower nozzle of the dishwasher, the desired dish washing effect can be obtained.

In addition, it is possible to provide a dishwasher which effectively prevents the confinement of the flow path control valve to improve reliability and user satisfaction.

1 is a block diagram of a typical dishwasher;
Figure 2 is a perspective view showing a portion of the lower housing of the flow path housing forming a flow path and the flow path control valve provided therein;
3 is a perspective view showing a part of the upper housing of the flow path housing;
4 to 6 is a view showing a conventional flow control valve;
7 to 10 is a view showing an embodiment of the flow control valve of the dishwasher according to the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention that can realize the above object will be described.

The same components as in the related art are provided with the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted, and the flow path housings 200 and 300 shown in FIGS. 3 and 4 may be equally applied in the present embodiment. have.

As described above, the conventional flow control valve has a problem that the area of contact with the flow control valve in the upper surface 330, the lower surface 250 and the side surfaces 230, 330 of the seating portion is very large. This was considered to be essential for preventing the flow path from being formed outside the flow path control valve of the flow path control valve 50. That is, the gap between the flow path control valve and the seating portion was very narrowed, and it was considered that the problem had to be taken in order to form the flow path at this interval.

In order to solve this problem, the embodiment can reduce the contact area between the flow path control valve and the seat and the top and / or bottom of the seat, and the contact area between the flow path control valve and the seat is independent or complex. Possible embodiments may be presented.

7 to 10 illustrate a flow path control valve including all of these embodiments in combination, which will be described in detail with reference to the drawings.

The illustrated flow control valve 60 is provided to guide the wash water from the main flow passage to the upper flow passage or the lower flow passage.

The flow path control valve 60 includes an upper wall 61 and a lower wall 62, and a flow path is formed between the upper wall 61 and the lower wall 62, that is, at the side surface. To this end, a first opening 64, a second opening 65 and a block 63 are provided along the circumferential direction between the upper wall 61 and the lower wall 62.

Referring to FIG. 3, when the first opening 64 communicates with the main flow passage 211, the second opening 65 communicates with the lower flow passage 212. In addition, the blocking portion 63 blocks the upper passage 213. Therefore, the washing water is supplied from the main flow passage to the lower flow passage. Thereafter, the flow path control valve 60 may rotate in a clockwise direction. In this case, the second opening 65 communicates with the main flow passage 211 and the first opening 64 communicates with the upper flow passage 213. The blocking portion 63 blocks the lower passage 212. Therefore, the washing water is supplied from the main flow passage to the upper flow passage. As the flow path control valve 60 rotates, the flow path through which the washing water is supplied varies.

Here, the first opening 64 and the second opening 65 are configured such that the washing water flows into and flows into the flow path control valve 60. In addition, the blocking portion 63 is configured to prevent the washing water introduced into the flow path control valve 60 through the first opening 64 or the second opening 65 from being discharged into the unwanted flow path.

In addition, a partition wall 63 ′ may be provided between the first opening 64 and the second opening 65 to partition both. The partition wall may perform a function of supporting between the upper wall 61 and the lower wall 62.

Blocking ribs 71 and 72 are preferably provided on the upper surface of the upper wall 61. The blocking ribs 71 and 72 are provided to protrude upward and contact the upper surface 350 of the seating part. Therefore, the blocking rib causes a gap between the upper surface 350 of the seating portion and the upper surface of the upper wall 61 by the height of the blocking rib. Therefore, sand or glass fragments, which may be introduced into the dishwasher, may not be caught even if introduced between the upper wall and the seating portion. In addition, as the blocking rib is rotated, it may be possible to discharge foreign substances introduced with the washing water.

In addition, the blocking ribs 71 and 72 can significantly reduce the area where the upper wall 61 and the upper surface 350 of the seating portion directly contact each other. Therefore, the friction area can be minimized to significantly reduce the confinement of the flow path control valve.

Here, as the blocking ribs 71 and 72 widen the interval between the upper wall 61 and the upper surface 350 of the seating portion, the washing water may be introduced at this interval. Therefore, the blocking ribs 71 and 72 may be provided to prevent unwanted washing water from flowing through the gap.

To this end, the blocking rib may include a radial rib 72. The radial ribs 72 may extend in a radial direction at the center of the upper wall 61. Since the radial rib 72 is configured to prevent the washing water from flowing into the upper wall 61, the radial rib 72 preferably extends to the radially outermost angle of the upper wall.

On the other hand, a projection 66 'is formed in the center of the upper wall 61 is inserted into the groove 320 of the seating portion. Therefore, the radial rib 72 extends in the radial direction from the projection 66 ', and the protruding height thereof is preferably lower than the projection 66'.

The blocking rib may include a circumferential rib 71. The circumferential rib 71 may be formed to surround the protrusion 66 ′. The circumferential rib serves to prevent the center of rotation from twisting.

When the circumferential rib 72 is provided, the radial rib 72 may be provided to extend in the radial direction from the circumferential rib. It is preferable that the protruding height is the same as the protruding height of the circumferential rib.

It is preferable that a plurality of blocking ribs are provided. This is because the blocking ribs also partition the regions corresponding to the regions partitioned through the openings 64 and 65 and the blocking portion 63 described above.

7 shows only blocking ribs formed to partition only the upper region of the upper wall corresponding to the blocking portion 63. However, a blocking rib may be further provided to partition the regions of the first opening 64 and the second opening 65 on the upper surface of the upper wall corresponding to the partition wall 63 ′. However, since a flow path is formed between the first opening 64 and the second opening 65 in any case, it is not necessary to partition the upper surface of the upper wall. This is also to further reduce the contact area between the upper wall 71 and the upper surface 330 of the seating portion.

Accordingly, the blocking ribs, in particular the radial ribs 72 may be formed at both sides at the center of the blocking portion 63. In addition, the angle of the radial rib 72 may be approximately 110 degrees to 130 degrees, which may be set differently according to the angle between the respective flow paths.

Here, the blocking portion 63 may include a vertical wall provided between the upper wall 61 and the lower wall 62. In this case, the upper wall 61 and the lower wall 62 may be formed in a circular shape in which a portion is tangentially cut in a tangential direction, and the vertical wall is provided to prevent the cut portion. Therefore, in the flow path control valve 60, the flow path in the vertical wall direction is blocked by the vertical wall.

In FIG. 7, a shaft 73 constituting the central axis of the flow path control valve 60 is illustrated, and a blocking rib provided on the upper wall is illustrated. However, it is not necessarily limited thereto. As shown in FIG. 9, blocking ribs may be provided on both the upper wall and the lower wall, and the structure and operation thereof may be the same. Similarly, as shown in FIG. 10, only the bottom wall may be provided with blocking ribs.

The above is summarized as follows.

The flow path control valve is provided with a blocking portion 63 for selectively blocking the upper flow passage or the lower flow passage. The blockage part serves to block the inside of the flow path control valve. In the above-described embodiment, a gap is formed between the upper surface of the upper wall 61 and the lower surface 350 of the seating portion. Thus, blocking ribs are provided to selectively block the upper flow path and the lower flow path at such intervals. As a result, it may be said that the blocking portion inside the flow path control valve and the blocking rib selectively block the upper flow path and the lower flow path from the outside of the flow control valve.

Here, the blocking rib may be specifically blocked to block the upper flow path and the lower flow path outside the upper side or the lower side of the flow control valve.

In addition to the above-described embodiment, an embodiment of reducing the friction area between the side surfaces of the flow path control valve and the seating portions 230 and 330 may be proposed.

As described above, the conventional flow control valve has a very large area in contact with the side of the flow control valve and the side of the seating portion. In order to significantly reduce the contact area, in this embodiment, the outer diameter of the upper wall and the lower wall corresponding to the block portion 63 and the upper wall 61 and the lower portion corresponding to the first opening 64 and the second opening 64 are reduced. The outer diameters of the walls 62 are different.

As shown in FIGS. 8 and 10, the outer diameters of the upper wall 61 and the lower wall 62 corresponding to the blocked portion are indicated by dotted lines. Therefore, it can be seen that the outer diameter is larger than the other parts. In addition, the upper wall 61 and the lower wall 62 corresponding to the blocking portion are connected to each other through the side wall 69. As a result, it can be said that the outer diameter of the side wall 69 is larger than the outer diameter corresponding to the first opening 64, the second opening 65, and the partition wall 73.

The outer diameter of the sidewall 69 is determined to be in contact with the side surfaces 230, 330 of the seating portion. Therefore, only the side wall 69 portion of the entire side surface of the flow path control valve 60 comes into contact with the side surface of the seating portion. This makes it possible to significantly reduce the contact area between the side face of the flow path control valve and the side face of the seating portion.

On the other hand, the side wall 69 may be formed over the entire position corresponding to the blocking portion (63). However, in this case, the area in contact with the side of the seating portion may increase. To this end, the side wall 69 may be formed to extend only at a predetermined angle in the circumferential direction on both sides of the blocking portion 63. Therefore, a space is formed between the side wall 69 and the side wall 69, so that the area in contact with the side surface of the seating portion can be significantly reduced.

Of course, the outer diameter of the partition wall 63 ′ may also be the same as the outer diameter of the side wall. In this case, the partition wall 63 'prevents the first opening and the second opening from communicating with each other outside the side surface of the flow path valve.

However, like the above-mentioned shutoff ribs, in this case, the contact area between the flow path control valve and the seating portion is increased without significant effect. This is because the first opening 64 and the second opening 65 should always communicate. Therefore, it is not necessary to prevent communication outside the flow path control valve while widening the contact area. In this case, the partition wall 63 ′ may simply be a wall that reinforces the rigidity between the upper wall 61 and the lower wall 62.

Meanwhile, as illustrated in FIG. 10, a shaft 66 inserted into the through hole 220 formed in the center of the seating part 250 is formed at the center of the lower wall 62. In addition, a connection groove 67 is formed in the shaft 66 to be connected to a motor for driving the flow path control valve.

The above is summarized as follows.

In this embodiment, the upper wall 61 and the lower wall 62 are similarly formed, and the first opening, the second opening, and the blockage are formed along the side surface of the flow path control valve. In order to minimize the area where the side of the flow path control valve and the side of the seat contact each other, the outer diameters of the upper wall and the lower wall vary according to their area.

At least, an outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening may be smaller than an outer diameter of the upper wall and the lower wall corresponding to the blocking portion 63. Here, a side wall is formed between the upper wall and the lower wall corresponding to the blocking portion, this side wall is to prevent the flow path is formed at the interval between the side of the flow control valve and the side of the seating portion.

That is, the blocking portion 63 selectively blocks the lower flow passage or the upper flow passage inside the flow control valve 60, and the side wall 69 is the lower flow passage or the upper flow passage at the side of the flow passage control valve 60. Will be selectively blocked.

Accordingly, the block portion 63 and the side wall 69 selectively block the lower flow passage or the upper flow passage.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications without departing from the spirit of the present invention, and such modifications are within the scope of the present invention.

60: flow control valve 61: upper wall
62: lower wall 63: blockage (vertical wall)
63 ': partition wall 64: first opening
65: second opening 69: side wall
71: circumferential rib 72: radius rib

Claims (17)

In a dishwasher having a flow control valve for directing the washing water from the main flow passage to the upper flow passage or the lower flow passage,
The flow path control valve,
Between the upper wall and the lower wall is provided with a blocking portion to selectively block the first opening, the second opening and the upper passage or the lower passage in the circumferential direction,
And a blocking rib protruding from at least one of the upper wall and the lower wall to selectively block the upper channel or the lower channel together with the blocking portion. The method of claim 1,
And a side surface of the flow path control valve is partitioned in the order of the first opening, the second opening, and the clogging in the circumferential direction. The method of claim 2,
The side of the flow control valve dishwasher, characterized in that the partition wall partitioning the first opening and the second opening between the upper wall and the lower wall. The method of claim 2,
The outer diameter of the upper wall and the lower wall corresponding to the first opening portion and the second opening portion is smaller than the outer diameter of the upper wall and the lower wall corresponding to the blocking portion. The method of claim 1,
And the upper wall and the lower wall are formed in a circular shape, a part of which is cut in a tangential direction, and the blocking part includes a vertical wall provided at the cutout of the upper wall and the lower wall. The method of claim 5, wherein
The clogging unit comprises a side wall, respectively provided on both sides of the vertical wall dishwasher. The method according to claim 6,
The outer diameter of the upper wall and the lower wall corresponding to the side wall is greater than the outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening. The method of claim 1,
The blocking rib, the dishwasher, characterized in that it comprises a radial rib formed in the radial direction and a circumferential rib formed in the circumferential direction. The method of claim 8,
The radial rib is dishwasher, characterized in that it comprises a pair of ribs making an angle of 110 degrees to 130 degrees from each other. A flow path housing forming a main flow path, an upper flow path and a lower flow path; And
It is rotatably provided in the seating portion of the flow path housing, comprising a flow path control valve for guiding the washing water flowing into the main flow path to either the upper flow path or the lower flow path,
The flow path control valve,
Between the upper wall and the lower wall is provided with a blocking portion to selectively block the first opening, the second opening and the upper passage or the lower passage in the circumferential direction,
And a blocking rib protruding from at least one of the upper wall and the lower wall, the blocking rib being provided to selectively block the upper passage or the lower passage together with the blocking portion. The method of claim 10,
And the blocking rib selectively blocks the upper flow path or the lower flow path between the upper wall and the lower surface of the seating portion or between the lower wall and the lower surface of the seating portion. The method of claim 11,
The clogging portion dishwasher, characterized in that it comprises a vertical wall for selectively blocking the upper flow path or the lower flow path inside the flow control valve. The method of claim 12,
The clogging portion dishwasher, characterized in that it comprises a side wall for selectively blocking the upper passage or the lower passage from the outside of the flow control valve. The method of claim 13,
The side walls are provided on both sides of the vertical wall, respectively. The method of claim 14,
The outer diameter of the side wall is greater than the outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening portion. A flow path housing forming a main flow path, an upper flow path and a lower flow path; And
It is rotatably provided in the seating portion of the flow path housing, comprising a flow path control valve for guiding the washing water flowing into the main flow path to either the upper flow path or the lower flow path,
The flow path control valve,
A vertical wall provided to selectively block the upper passage or the lower passage therein;
A first opening and a second opening provided to discharge the washing water and the washing water introduced therein; And
A side wall formed on both sides of the vertical wall having an outer diameter greater than an outer diameter of the first opening portion and the second opening portion so as to selectively block the upper flow passage or the lower flow passage between the outside of the flow control valve and the side surface of the seating portion. Dishwasher, characterized in that. 17. The method of claim 16,
And a blocking rib formed to selectively block the upper flow path or the lower flow path between the outside of the flow path control valve and the upper or lower surface of the seating part.

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