KR940010990B1 - Spray arm of tableware washing machine - Google Patents

Abstract

A regular or inverse rotary device of spray arm of a tableware cleansing device enlarges a cleansing effect by regular or inverse-rotating the spray arm set in the tableware cleansing device. The rotary device is constructed that a guide member is set on the spray arm and is formed in an isolated room which first, second, third and fourth guide slant faces are independent respectively; first and second rotary nozzles are installed against the guide member opposingly; and a ball leads the regular and inverse rotation of the spray arm, the ball being moved by a water power of cleansing water, and the first and second rotary nozzles being closed alternately.

Description

Rotary jet wing, reverse rotation device of dishwasher

1 is a plan view showing a rotary jet blade installed in a conventional dishwasher.

2 is a front view showing a rotary jet blade installed in a conventional dishwasher.

3 is a plan view showing the present invention.

4 is an enlarged cross-sectional view showing portion A of FIG.

5 is a perspective view showing a portion A of FIG.

* Explanation of symbols for main parts of the drawings

1: rotary injection wing 2: guide member

2a: first guide slope 2b: second guide slope

2c: third guide slope 2d: fourth guide slope

2e: compartment 3: first rotating nozzle

4: second rotary nozzle 5,6: washing water inlet

7: ball

The present invention relates to a spray arm positive and reverse rotating device of a dishwasher, and more particularly, to rotate and rotate the rotary spraying blade installed in the dishwasher by using a feeding and draining action to improve washing efficiency. It is intended to increase.

As shown in FIGS. 1 and 2, the rotary jet blades 1a of the conventional dishwasher are rotatably installed in the center of the upper portion of the water pipe 9 installed on the bottom surface 8 of the dishwasher. A plurality of washing nozzles 10 are installed at the upper part of the blade 1a, and rotating nozzles 3a for generating rotational force are installed at both ends of the rotary spraying blade 1a.

Therefore, since the rotary spraying blade 1a is sprayed from the rotary nozzle 3a by the water pressurized by the pump (not shown) through the water pipe 9, the rotary spraying blade 1a rotates, and at the same time, the washing nozzle The washing is performed by the water sprayed at (10).

However, such a rotary jet blade (1a) of the dishwasher is rotated by the hydraulic power injected through the rotary nozzle (3a) installed to generate a rotational force, the rotational force is the force of the water sprayed through the rotary nozzle (3a) It is determined by the rotational movement at a fixed speed without changing the salary, and to control the rotational force, it is necessary to change the water pressure supplied through the pump, since the intensity of the water sprayed through the washing nozzle 3a is also changed. There was a problem such that the change in the rotational speed of the rotary injection blade (1a) is impossible, the cleaning efficiency is lowered.

The present invention is to solve the above-mentioned problems, the invention is to rotate the rotary blades installed in the dishwasher by using the feeding, draining action, by rotating the forward and reverse, to increase the washing range of the washing water to increase the cleaning efficiency It is an object of the present invention to provide a rotary jet blade forward and reverse rotation device for a dishwasher which can be greatly improved.

In order to achieve the above object, the present invention is a guide member formed in each of the first, second, third, fourth guide inclined surfaces installed in the rotary injection wing, and is installed to face the guide member protrudes to the rotary injection wing And the first and second rotary nozzles for both the first and second rotary nozzles, which generate the rotational force of the rotary jet, and move by the hydraulic power of the wash water supplied into the compartment to alternately close the first and second rotary nozzles to reverse the forward and reverse directions of the rotary jet. Rotary jet blade forward and reverse rotation device of dishwasher consisting of a ball to induce rotation.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 5.

FIG. 3 is a plan view showing the present invention, FIG. 4 is a cross sectional view showing an enlarged portion A of FIG. 3, and FIG. 5 is a perspective view showing a portion A of FIG. 3, and is shown at both ends in the rotary jet blades 1 of the dish washing machine. First, second, third, and fourth guide inclined surfaces 2a, 2b, 2c, and 2d are respectively formed in separate compartments 2e at upper portions thereof, and guide members 2 having a height difference at boundaries are provided. On each side of the guide member 2, the lower portion of the first and second rotary nozzles (3) (4), which are combined with the washing and export port, which protrude out of the rotary jet (1) to generate the rotary force of the rotary jet (1) Opposed to the second and fourth guide slopes 2b and 2d.

In addition, each side of the first and second rotary nozzles (3) and (4) combined with the washing and discharge port of the guide member (2), the washing water inlet (5) and (6) into which the washing water supplied from the pump to the rotary jet (1) flows in. ) Is installed on the first and third guide slopes 2a and 2c, and on the first, second, third and fourth guide slopes 2a, 2b, 2c and 2d of the guide member 2, It moves only in one direction along the first, second, third and fourth guide slopes 2a, 2b, 2c and 2d by the hydraulic power of the washing water flowing into the washing inlet 5 and 6 at the time of drainage. The first and second rotary nozzles 3 and 4 are alternately closed to provide a ball 7 which induces forward and reverse rotation of the rotary injection blades 1.

The present invention configured as described above has a washing water inlet 5 installed on the first guide inclined surface 2a on the guide member 2 provided at both ends of the rotary jet blade 1 of the dish washing machine. The first and third guide inclined surfaces 2a and 2c of the guiding member 2 are provided with the washing water supplied from the pump to the rotary injection blade 1 while the ball 7 having a specific gravity higher than that of the washing water is blocked. When the water is supplied into the compartment 2e through the plurality of washing inlets 5 and 6 installed in the chamber, the ball 7 blocking the washing inlet 5 of the first guide slope 2a is hydraulically guided to the first guide. Since the water is pushed up to the second guide inclined surface 2b beyond the jaw of the inclined surface 2a and simultaneously moved to close the first rotary nozzle 3 installed in the second guide inclined surface 2b, the washing water is guide member 2. Sprayed to the second rotary nozzle (4) provided on the fourth guide inclined surface (2d) of It is rotated in the clockwise direction.

When the water supply from the pump to the rotary injection blade 1 is stopped and drained, the ball 7 is directed toward the first guide slope 2a by the jaw of the first guide slope 2a as shown in FIG. The second guide inclined plane 2b, which is not inclined, is moved from the second guide inclined plane 2b to the third guide inclined plane 2c.

When water is supplied from the pump to the rotary injection blade 1 again, a plurality of washing inlets 5 and 6 provided in the second and third guide inclined surfaces 2b and 2c of the guide member 2 are provided. 2e) the ball 7 blocking the washing inlet 6 of the third guide inclined surface 2c while being supplied with water is over the jaw of the third guide inclined surface 2c by hydraulic power, and the fourth guide inclined surface 2d. The washing water is first rotated on the second guide inclined surface 2d of the guide member 2 because the second rotary nozzle 4 combines the wash water installed on the fourth guide inclined surface 2d and is moved upward. The rotary injection blade 1 sprayed to the nozzle 4 is rotated clockwise.

When the water supply from the pump to the rotary injection blade 1 is stopped and drained, the ball 7 is directed toward the third guide slope 2c by the jaw of the third guide slope 2c as shown in FIG. The spray arm 1 is fixed by the cycle of water supply and drainage in accordance with the above-described operating sequence by moving down and moving to the first guide slope 2a along the fourth guide slope 2d that is not inclined. As the reverse rotation is repeated, the spraying range of the washing water is expanded, thereby greatly improving the washing efficiency.

As described above, the present invention is the first, second, third, fourth guide inclined surface (2a) (2b) (2c) (2d) of the guide member (2) provided at both ends in the rotary jet blade (1) of the dishwasher The first and second rotary nozzles (3) for the washing and export openings installed on the second and fourth guiding slopes (2b) and (2d) while the ball (7) having a higher specific gravity than the washing water are moved only in one direction by hydraulic power during supply and drainage. By alternately closing (4) to rotate the rotary jet (1) forward and reverse, the spraying range of the washing water of the rotary jet (1) can be expanded to greatly increase the cleaning efficiency, thus improving product efficiency and reliability. It is a very useful invention that improves.

Claims (3)

A guide member (2) installed on the rotary injection blade (1) and having first, second, third and fourth guide inclined surfaces (2a) (2b) (2c) (2d) formed in separate compartments (2e), respectively; The first and second rotary nozzles (3) and (4) for combined use of the washing and export outlet, which are installed to face the member (2) and protrude to the rotary jet (1) and generate the rotational force of the rotary jet (1), and the compartment (2e). It consists of a ball (7) to induce the forward and reverse rotation of the rotary injection blade (1) by alternately closing the first and second rotary nozzle (3) (4) by moving by the hydraulic power of the water supplied into the water) Rotary jet wing, reverse rotation device of dishwasher. 2. The dishwasher according to claim 1, wherein a boundary between the first, second, third and fourth guide slopes 2a, 2b, 2c and 2d is formed so that the balls 7 move only in one direction. Rotary jet wing forward and reverse rotation device. According to claim 1 or 2, wherein the first and third guide inclined surfaces (2a) (2c) is provided with a washing inlet (5) (6), the washing water flows into the rotary dispersion wing (1) is introduced, the second , 4 guide sloping surface (2b) (2d), the first and second rotary nozzle (3) (4) is installed in the rotary jet blade of the dishwasher, reverse rotation device.