KR100258618B1 - Dishwasher - Google Patents

Abstract

PURPOSE: A dishwasher is provided to inject washing water to a dish contained in a dish basket and to improve efficiency of the dishwasher. CONSTITUTION: A dish washer comprises a body; a dish basket; an injecting arms(16,17) forming a nozzle hole injecting washing water; an injection nozzle having plural injecting arms; a plural washing water injection ramifying passage injecting the washing water to the dish basket by being engaged wit the injection arm to receive the washing water; a rotating nozzle having plural nozzle holes on the washing water ramifying passage; and a rotation driving unit rotating the rotating nozzle by the washing water. Then, water supply motor(7) actuates to supply the washing water to the injecting arm through a water supply pipe(9). The injecting arm rotates along a rotation plane of a main rotating shaft line by water pressure to inject the washing water to the dish basket via the nozzle hole mounted on the injecting arm. Thereby, the dishwasher injects washing water to a dish basket in various angles.

Description

dish washer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly, to a dishwasher for spraying washing water at various angles toward a dish basket.

6 is a longitudinal cross-sectional view of a conventional dishwasher. As shown in this figure, the conventional dishwasher has a main body 101 having a washing tank 105 therein, and a door 103 for opening and closing the front opening of the washing tank 105 by vertically rotating. A water supply motor 107 is provided at the lower side of the washing tank 105 to supply the washing water into the washing tank 105, and a water supply pipe so that the washing water from the water supply motor 107 is supplied to the upper and lower regions of the washing tank 105. 109 are provided respectively. In addition, the upper and lower regions in the washing tank 105, the upper tableware basket 111 and the lower tableware 113 for receiving the dishes to be washed are installed to be withdrawn respectively.

Meanwhile, the upper and lower dish baskets 111 and 113 are supplied with washing water from the water supply pipes 109 provided in the upper and lower regions of the washing tank 105 to spray the upper spray nozzles 115 and the lower partial nozzles to the corresponding dish baskets 111 and 113. 117 are attached, respectively. Each of the injection nozzles 115 and 117 is formed of a hollow hollow body, and a tubular rotation shaft disposed on an extension line of the water supply pipe 109 is formed in the central region of each of the injection nozzles 115 and 117. The upper and lower part nozzles 115 and 117 are provided with a plurality of nozzle holes 119 for spraying the washing water toward the respective dish baskets 111 and 113.

By such a configuration, each of the injection nozzles 115 and 117 receives the washing water from the corresponding water supply pipe, and sprays the washing water toward the corresponding dish baskets 111 and 113 while rotating around the rotating shaft with a predetermined rotation radius.

By the way, in the conventional dishwasher, each spray nozzle having a predetermined rotation radius in the washing tank 105 formed to have a rectangular cross-sectional shape rotates to spray the washing water toward the dish basket, as shown in FIG. As described above, the dishes arranged in the rotation radius outer region (a) of the lower part nozzle 117 have a problem in that the washing water is relatively difficult to access and the dish washing is insufficient.

And, the nozzle hole 119 is formed in the lower portion of the four-way nozzle 117 so as to be spaced apart from the rotation axis by a predetermined amount, when the lower portion of the nozzle 117 is rotated, each nozzle hole 119 is rotated along a predetermined rotation trajectory While spraying the washing water toward the dish basket 113. Accordingly, the washing water is concentrated in the corresponding area of each nozzle hole 119 in the dish basket 113, and the washing water is relatively sprayed in the area corresponding to each nozzle hole 119. There is a problem of this lack.

Accordingly, it is an object of the present invention to provide a dishwasher capable of spraying washing water evenly toward various dish baskets at various angles, thereby improving washing efficiency of the dishware.

1 is a longitudinal sectional view of the dishwasher according to the present invention;

FIG. 2 is an exploded perspective view of the rotating nozzle and the auxiliary nozzle area of FIG. 1;

3 is a cross-sectional view taken along line II of FIG. 2;

4 and 5 are cross-sectional views of the assembly operation state according to the II-II line of FIG.

Figure 6 is a longitudinal cross-sectional view of a conventional dishwasher,

7 is an operating state of the injection nozzle of FIG.

<Explanation of symbols for the main parts of the drawings>

1: body 3: door

5: washing tank 7: water motor

11: Upper tableware basket 13: Lower tableware basket

15: upper injection nozzle 16, 17: injection arm

18: lower part four nozzle 19: nozzle ball

21: auxiliary nozzle 23, 25: torque injection hole

29: opening and closing 31: slider

40: nozzle body 41: washing water

43: injection nozzle ball 45: propeller part

47: cam action portion 51: movable shaft portion

53: fixed shaft portion 55: cam portion

The object is, according to the present invention, the main body to form a washing tank, the dish basket accommodated in the washing tank, and a predetermined distance away from the dish basket is installed rotatably about the main axis of rotation, toward the dish basket A dishwasher having a spray nozzle having a plurality of spray arms having at least one nozzle hole for spraying washing water, the dishwasher being freely rotatable about a sub-rotation axis parallel to the main axis of rotation and in communication with the spray arm. It is coupled to receive the washing water, a plurality of washing water branch to inject the washing water to the dish basket with an inclination to the secondary rotation axis is formed, the rotation having at least one injection nozzle hole in each of the washing water A nozzle and a rotary driving means for rotating the rotary nozzle by the flow of washing water. It is achieved by a dishwasher characterized in that.

Here, the rotation driving means is a rotary support tube formed with a plurality of washing water flow passages, a tubular fixed shaft portion provided along the secondary rotation axis of the injection nozzle, one end is coupled to the rotary support tube and the other end is fixed It is preferable to include a tubular movable shaft member which is concentrically engaged with the shaft member so as to be relatively rotatable, and a propeller portion which is integrally coupled to the movable shaft member and installed in the injection arm and rotated by the water flow of the washing water.

In addition, it is preferable that each injection nozzle hole formed in the washing water branch is formed at an angle branch.

The upstream edge of the fixed shaft portion has a cam portion having a profile formed so that the government and the bottom portion are alternately arranged according to the rotation angle, and the movable shaft portion is provided with a cam action portion in contact with the cam portion to move up and down along the profile during rotational movement. It is desirable to.

On the other hand, the object is, according to another field of the invention, the main body to form a washing tank, the dish basket accommodated in the washing tank, and is installed rotatably about the main axis of rotation spaced apart from the dish basket a predetermined distance, A dishwasher having a spray nozzle having a plurality of spray arms having at least one nozzle hole for spraying the washing water toward the dish basket, wherein the spray arms are freely rotatable about a negative rotation axis parallel to the main rotation axis. It is coupled to the injection arm so as to receive the wash water, the at least one nozzle hole toward the dish basket, and a pair of rotational force mutually opened along the rotation plane horizontally in the radial direction at a position spaced apart from the negative rotation axis Auxiliary nozzles having injection holes, and both sides of a predetermined rotation angle range of the auxiliary nozzles Injection opening and closing means for rotating the auxiliary force nozzle alternately and selectively to reversely and rotationally rotate the auxiliary nozzle within the rotation angle range, and freely rotate about the negative rotation axis parallel to the main rotation axis on the injection arm. Is connected to the injection arm is coupled to receive the washing water, a plurality of washing water to the water injecting the washing basket to the dish basket with the inclination to the secondary rotation axis is formed, at least one in each washing water A rotating nozzle having a spray nozzle hole and rotating driving means for rotating the rotating nozzle by the water flow of the washing water are achieved by a dishwasher.

Here, the injection hole opening and closing means is provided in the auxiliary nozzle opening and closing the opening and closing the rotational force injection hole, and installed in the auxiliary nozzle to support the opening and closing between the two rotational force injection hole and the inner wall of the washing tank It is preferable to include a slider in contact with the at least one of the rotational force injection hole to block.

The rotation driving means includes a rotary support tube provided with a plurality of washing water flow dividing flow passages, a tubular fixed shaft portion provided along a sub-rotation axis of the injection nozzle, and one end coupled to the rotary support tube, and the other end is fixed. It is preferable to include a tubular movable shaft member which is concentrically engaged with the shaft member so as to be relatively rotatable, and a propeller portion which is integrally coupled to the movable shaft member and installed in the injection arm and rotated by the water flow of the washing water.

It is preferable that each injection nozzle hole formed in the washing water dividing furnace is formed at an angle branch.

The upstream edge of the fixed shaft portion has a cam portion having a profile formed so that the government and the bottom portion are alternately arranged according to the rotation angle, and the movable shaft portion is provided with a cam action portion in contact with the cam portion to move up and down along the profile during rotational movement. It is desirable to.

Preferably, a guide member for guiding the washing water from the spray nozzle to the propeller is provided in the auxiliary nozzle.

It is preferable that a tubular rotating shaft portion is provided along the rotating axis of the auxiliary nozzle, and the spray nozzle is provided with a rotating shaft fixing hole which is concentrically coupled with the rotating shaft portion.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a longitudinal sectional view of the dishwasher according to the present invention. As shown in this figure, the dishwasher has a main body 1 which forms the washing tank 5 therein and a door 3 which opens and closes the front opening of the washing tank 5. A water supply motor 7 is provided at the lower side of the washing tank 5 to supply the washing water into the washing tank 5, and a water supply pipe may be provided at the upper and lower regions of the washing tank 5 to supply the washing water from the water supply motor 7. (9) is provided respectively. In addition, in the upper and lower regions of the washing tank 5, the upper tableware basket 11 and the lower tableware basket 13, which accommodate the dishes to be washed, are provided to be withdrawn, respectively.

On the other hand, the upper and lower tableware baskets (11, 13) receives the washing water from the water supply pipe (9) provided in the upper and lower regions in the washing tank (3), the upper injection nozzle (15) for spraying to the corresponding dish basket (11, 13) And a lower part four nozzle 18 are respectively attached. In the present invention, since the upper injection nozzle 15 and the lower partial nozzle 18 have almost the same configuration, the following description will be given only to the lower partial nozzle 18 for convenience of description.

The lower partial nozzle 18 is formed of a hollow hollow body and has a pair of injection arms 16 and 17 arranged to face each other about the main axis of rotation. The central region of the lower part nozzle (18) is formed with a tubular rotary shaft disposed on an extension line of the corresponding water supply pipe (9), and the upper surface of the lower part nozzle (18) to spray the washing water toward the dish basket (13). A plurality of nozzle holes 19 are formed to be possible.

In addition, the free end portion of the injection arm 17 has a sub-rotation axis parallel to the main rotation axis of the lower part yarn nozzle 18, and the auxiliary nozzle 21 is coupled so as to be freely rotatable with respect to the sub-rotation axis. The auxiliary nozzles 21 are coupled to each other so that the rotating nozzles communicate with each other so that the washing water can be received.

2 is an exploded perspective view of the rotating nozzle and the auxiliary nozzle area of FIG. 1, FIG. 3 is a cross-sectional view taken along the line I-I of FIG. 2, and FIGS. 4 and 5 are assembly operations taken along the line II-II of FIG. It is a cross section of the condition. As shown in these figures, the auxiliary nozzle 21 is formed of a hollow body on a rod, and has a fixed shaft portion 53 capable of fixedly coupling the rotating nozzle with an opening so as to face each other along the rotation plane of the auxiliary nozzle 21. It has a pair of rotational force injection holes (23, 25). The injection hole opening and closing means is provided between the rotational force injection holes 23 and 25 so that the auxiliary nozzle 21 can be rotated forward and backward within a predetermined rotation angle range of the auxiliary nozzle 21.

The injection hole opening / closing means is provided between the rotational force injection holes 23 and 25 and a bar-shaped slider 29 and an area of the slider 29 provided to open and close the rotational force injection holes 23 and 25 alternately and selectively. Is connected to and is composed of an opening and closing body 27 to block any one of the rotational force injection holes (23, 25).

In the auxiliary nozzle 21, a guide member 31 for guiding the washing water from the injection arm 17 to the propeller portion 45 to be described later is provided, and the auxiliary nozzle 21 is provided with a portion of the auxiliary nozzle 21. A tubular pivoting shaft 33 is provided which is fixedly installed along the axis of rotation and provided to communicate with the injection arm 17. The injection arm 17 has a rotating shaft fixing hole 37 for accommodating the rotating shaft portion 33, and a hook portion 35 is provided at the end of the rotating shaft portion 33 to provide the rotating shaft fixing hole 37. It is hooked to.

On the other hand, the rotating nozzle has a nozzle body 40 formed with a plurality of washing water split passages 41 for injecting the washing water into the dish basket 13 with the inclination of the negative rotation axis, and a rotary driving means for rotating the rotating nozzle. .

The rotary driving means includes a rotary support tube 49 having a plurality of washing water flow dividing passages, a tubular fixed shaft portion 53 formed at the auxiliary nozzle 21, and one end thereof coupled to the fixed shaft portion 53. Is coupled to the fixed shaft portion 53 and the movable shaft portion 51 so as to be relatively rotatable, the propeller portion 45 is integrally coupled with the movable shaft portion 51 and accommodated in the injection arm 17 and rotated by washing water. ) The upstream edge of the fixed shaft portion 53 is provided with a cam portion 55 having a profile formed so that the government and the bottom portion are alternately arranged according to the rotation angle, and the movable shaft portion 51 has a cam action portion in contact with the cam portion 55. 47 is provided.

By such a configuration, when the water supply motor 7 is operated by an external operation and the pumped washing water is supplied to each of the injection arms 16 and 17 through the water supply pipe 9, the injection arms 16 and 17 are connected to the washing water. The hydraulic pressure rotates along the plane of rotation of the main axis of rotation. At this time, the washing water is sprayed toward the dish basket 13 through the plurality of nozzle holes 19 formed in the injection arm 17.

On the other hand, some of the washing water introduced into the auxiliary nozzle 21 through the injection arm 17 is introduced into the nozzle body 40 of the rotating nozzle via the guide member 31 formed in the auxiliary nozzle 21, The remainder is discharged through the rotational force spraying hole 23 to rotate the auxiliary nozzle 21 in the direction opposite to the washing water spraying direction. When the auxiliary nozzle 21 rotates about the negative rotation axis and the slider 29 comes into contact with the inner wall surface of the washing tank 5, the opening and closing body 27 coupled to the slider 29 is slidably moved to rotate the rotational force. Block the injection hole (23). Then, the washing water is discharged through the rotational force injection hole 25 and the auxiliary nozzle 21 is rotated by changing the direction.

At the same time, when the washing water flows into the auxiliary nozzle 21 and is discharged through the rotational force injection hole 27, the auxiliary nozzle 21 rotates about the negative rotation axis. At this time, some of the washing water introduced into the auxiliary nozzle 21 rotates the propeller part 45 via the guide member 31, and the injection nozzle hole formed in the washing water branch passage 41 of the nozzle body 40 ( 43 is sprayed toward the dish basket 13 through. When the propeller 45 part is operated, the cam action part 47 provided in the movable shaft part 51 raises along the profile which is the cam part 55 formed in the fixed shaft part 53. As a result, the nozzle body 40 of the rotating nozzle is raised and lowered along the sub-rotation axis, and at the same time, the washing water is directed toward the dish basket 13 at various angles through the injection nozzle holes 43 formed in the plurality of washing water dividing passages 41. Will be sprayed.

As such, an auxiliary nozzle having a nozzle hole capable of spraying the washing water and a pair of rotational force spraying holes which are mutually opened along the rotation plane in the radial direction at a position spaced apart from the sub-rotation axis; Spraying opening and closing means for forward and reverse rotation of the auxiliary nozzle within the rotational angle range by alternately and selectively opening and closing the rotational force injection hole at both sides of a predetermined rotational angle range of the auxiliary nozzle; The jetting arm is freely rotatable about the sub-rotation axis parallel to the main axis of rotation and is connected to the auxiliary nozzle so as to receive the washing water. The washing arm is inclined to the sub-axis and sprays the washing water onto the dish basket. A rotating nozzle having a plurality of washing water dividing paths and having at least one injection nozzle ball in each of the washing water dividing paths; By providing a rotation driving means for rotating the rotary nozzle by the water flow of the washing water to interact with, the washing water can be sprayed at various angles toward the dish basket in the washing tank.

As described above, according to the present invention, the washing water is evenly sprayed from various angles toward the dish basket in the washing tank, thereby providing a dish washing machine which can further improve the washing efficiency of the dish.

Claims (12)

A main body forming a washing tank, a dish basket housed in the washing tank, and at least one nozzle ball spaced apart from the dish basket by a predetermined distance to be rotatable about a main rotation axis and spraying the washing water toward the dish basket are provided. In a dishwasher having a spray nozzle having a plurality of spray arms formed, The jetting arm is freely rotatable about the negative rotational axis parallel to the main rotational axis and is connected to the injection arm so as to receive the washing water. The washing arm is inclined to the secondary rotational axis and sprays the washing water onto the dish basket. A rotating nozzle having a plurality of washing water dividing paths and having at least one spray nozzle ball in each of the washing water dividing paths; And a rotary drive means for rotating the rotary nozzle by the water flow of the washing water. The method of claim 1, The rotary drive means, and the rotation support tube formed with a plurality of washing water flow passage; A tubular fixed shaft portion provided along a sub-rotation axis of the auxiliary nozzle; A tubular movable shaft member having one end coupled to the rotary support tube and the other end being concentrically engaged with the fixed shaft member in a relatively rotatable manner; And a propeller unit integrally coupled with the movable shaft member and installed in the spray arm to be rotated by the water flow of the washing water. The method of claim 2, Each of the spray nozzle holes formed in the washing water dividing furnace is formed in the angled branch dishwasher. The method of claim 3, The upstream edge of the fixed shaft portion has a cam portion having a profile formed so that the government and the bottom portion are alternately arranged according to the rotation angle, and the movable shaft portion is provided with a cam action portion in contact with the cam portion to move up and down along the profile during rotational movement. Dishwasher, characterized in that. A main body forming a washing tank, a dish basket housed in the washing tank, and at least one nozzle ball spaced apart from the dish basket by a predetermined distance to be rotatable about a main rotation axis and spraying the washing water toward the dish basket are provided. In a dishwasher having a spray nozzle having a plurality of spray arms formed, At least one nozzle hole directed to the dispensing arm and freely rotatable about a sub-rotation axis parallel to the main axis of rotation and in communication with the injection arm to receive washing water, the at least one nozzle hole facing the dish basket, and the sub-rotation axis An auxiliary nozzle having a pair of rotational force injection holes mutually opened along a rotational plane horizontally in a radial direction at a spaced position; Injection opening and closing means for forward and reverse rotation of the auxiliary nozzle within the rotation angle range by alternately and selectively opening and closing the rotational force injection hole at both sides of a predetermined rotation angle range of the auxiliary nozzle; The jetting arm is freely rotatable about the sub-rotation axis parallel to the main axis of rotation and is connected to the auxiliary nozzle so as to receive the washing water. The washing arm is inclined to the sub-axis and sprays the washing water onto the dish basket. A rotating nozzle having a plurality of washing water dividing paths and having at least one injection nozzle ball in each of the washing water dividing paths; And a rotary drive means for rotating the rotary nozzle by the water flow of the washing water. The method of claim 5, The injection hole opening and closing means is provided in the auxiliary nozzle opening and closing the opening and closing the rotational force injection hole, and installed in the auxiliary nozzle to support the opening and closing between the two rotational force injection hole and to contact the inner wall of the washing tank And a slider for blocking at least one of the rotational force spraying holes. The method of claim 5, The rotary drive means, and the rotary support tube provided with a plurality of washing water flow passage; A tubular fixed shaft portion provided along a negative rotation axis of the injection nozzle; A tubular movable shaft member having one end coupled to the rotary support tube and the other end being concentrically engaged with the fixed shaft member in a relatively rotatable manner; And a propeller unit integrally coupled with the movable shaft member and installed in the spray arm to be rotated by the water flow of the washing water. The method of claim 7, wherein Each of the spray nozzle holes formed in the washing water dividing furnace is formed in the angled branch dishwasher. The method of claim 8, The upstream edge of the fixed shaft portion has a cam portion having a profile formed so that the government and the bottom portion are alternately arranged according to the rotation angle, and the movable shaft portion is provided with a cam action portion in contact with the cam portion to move up and down along the profile during rotational movement. Dishwasher, characterized in that. The method of claim 9, And a guide member for guiding the washing water from the spray nozzle to the propeller unit in the auxiliary nozzle. The method of claim 5, A tubular rotating shaft portion is provided along the sub-rotation axis of the auxiliary nozzle, and the spray nozzle is provided with a rotating shaft fixing hole which is concentrically coupled to the rotating shaft portion. The method of claim 11, The rotating shaft unit and the rotating shaft fixing hole is a dish washer, characterized in that the hook.