JPH05245093A - Dish washer - Google Patents

Abstract

PURPOSE:To achieve a washing of dishes in a short time and with a limited washing water by using a water path having a filter for prewashing while a water path passing through no filter for washing and rinsing. CONSTITUTION:A pump 9 is operated and in the normal operation, a drain valve 34 is closed by a water pressure while a water feed valve 33 is opened to jet a washing water. Dishes are washed through a nozzle 7. After the end of prewashing, a motor 8 is reversed and the drain valve 34 is opened by a water pressure while the water feed valve 33 is closed to drain the washing water by a pump pressure. Under the pressure of the water, a piston 19 mounted in a drain pipe 6 rises to open a bypass water path with the rising of a bypass lid 16. During the prewashing, the dishes are washed by the washing water dropping after the washing thereof by jetting and the washing water flows over a bottom plate 25 of a container to enter a filter 22. where food refuse is absorbed. The water enters a washing tank 15 and sucked with the pump 9. Thus, the jetting is repeated. After the draining, a bypass water path not passing through the filter 22 is formed thereby keeping a suction force of the pump 9 from weakening during, the main washing and rinsing.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to dishwashers.

[0002]

2. Description of the Related Art Conventionally, a dishwasher is a pump for pressure-feeding which rotates a nozzle for injecting washing water into a washing tank while rotating by a reaction of jetting, and constantly washing it through a filter for adsorbing food waste. Circulate the water in the tank, warm the cleaning water with the heater in the cleaning tank, and also add a device for pre-washing and dropping the detergent, and also wash, drain and water for each rinse,
After the rinsing was completed, the heater fan was separately mounted and dried.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned prior art, the filter is clogged with food waste at the time of preliminary washing, the desired water pressure cannot be obtained at the time of main washing and rinsing, and sewage passing through the food waste is not obtained. There was a problem that cleaning performance was lacking because the tableware was washed with.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention is a dishwasher for performing steps such as prewashing, washing and rinsing, wherein a water channel provided with a filter is used at the time of prewashing, and the above filter is used at the time of washing and rinsing. It is configured to use a water passage that does not pass through, and after removing the food waste dropped from the dishes by the preliminary washing with a filter, do the main wash and rinse while circulating the wash water in the water passage that does not pass through the filter. Since it is carried out, it is possible to prevent a decrease in water pressure due to clogging of the filter and prevent the cleaning water from being contaminated with food waste.

[0005]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a sectional view of the entire dishwasher according to the present invention, FIG.
Is a partial explanatory view of the dishwasher, FIG. 3 is a cross-sectional view of the pump, in which (1) is a container lid, (2) is a cleaning container, and (3).
Is a container receiving box, the main body of which is formed, and the rotary shaft protrusions (4) projecting from the rear ends of the container lid (1) are brought into contact with the receiving portions of the container (2) to open and close the lid (1). A ventilation plate (29) is formed in the lid (1) and a shielding plate (30) having a slight gap on the front surface is attached to the cover (1) so that the cleaning water does not directly flow out of the ventilation hole (29).

Reference numeral (37) is a vertical wall attached near the front surface of the lid (1), and its lower end is opened so as to serve as a passage for washing water.

Reference numeral (31) is an odor hole provided between the front exterior part of the lid (1) and the hanging wall (37) so that the odor emitted from the filter (22) for storing food waste is not retained in the container (2). It is an odor release to the outside air.

(9) is a pump, and when the impeller (32) is rotated clockwise, the water supply valve (33) is opened and the nozzle (7) rotating from the discharge port (5) rotates the washing water in the washing tank (15). Suction and spray to wash dishes.

When the valve is turned counterclockwise, the valve (33) is closed and the drain valve (34) is opened, and the drain pipe (6) is used to wash the tank (15).
The dirty cleaning water inside is sucked and discharged.

During discharging to the outside, the piston (19)
When the piston (19) is pushed up by the water pressure when it is inserted, the push rod (20) of the piston (19) pushes the bypass lid (16) as shown by the dotted line to stop it by leaning on the hanging wall (37). The dirty cleaning water is discharged with the drain pipe port (23) open.

Further, the opening and closing of the bipai lid (16) is performed by the drainage force of the pump (9), but the same is true even if it is pressed by an electromagnetic pledger.

A box lid (17) is attached to a part of the tip of the lid (16) as a rear eye of the lid of the detergent loading box (18) attached to the vessel bottom plate (25) of the vessel (2).

A fan (11) for air cooling of the motor and a fan (10) for sending out hot air are attached to the shaft opposite to the pump (9) of the motor (8), and the air sucked through the suction port (36) is washed in the washing tank. The cleaning water is warmed by passing it through a blower pipe (12), which is a blower passage with a built-in heater (13) in (15), and hot air is discharged from the blower nozzle (14) into the container lid (1) for washing and rinsing. The sprayed cleaning water inside is warmed, and the output of the heater (13) is controlled during drying so as to be useful for blast drying at an appropriate temperature.

(21) is a hanging valve that hangs down from the filter (22) to the water channel entering the cleaning tank (15) and opens according to the water flow, and closes when there is no water flow, and the odor from the filter (22) is stored in the container (2) It was designed so as not to invade.

Reference numeral (24) is an electromagnetic valve for opening and closing tap water, which allows tap water to flow into the container (2) through the water pipe (28).

(26) is an overflow conduit (2
7) is a water level sensor that detects the change in resistance between water and air between the two poles, and the reed switch may be operated by a float with a magnet.

This embodiment is constructed as described above, and when the pump (9) attached to one of both shafts of the drive motor (8) operates and the normal rotation is performed, the drain valve (34) is closed by water pressure. The water supply valve (33) is opened, and washing water is sprayed through the nozzle (7) to wash the dishes in the container (2).

A fan (10) attached to the other shaft at that time
However, it starts blowing air and blows air into the cleaning tank (15).
The washing water and the air in the container (2) are warmed through the heated heater (13) inside.

Thus, when the motor (8) is rotated in the reverse direction after the preliminary washing is completed, the drain valve (34) is opened by water pressure and the water feed valve (33) is closed, and the dirty wash water is drained by the pump pressure.

The water pressure causes the piston (19) mounted in the drainage pipe (6) to rise and the bypass lid (16) to rise to open the bypass water passage. Flow through the bottom plate (25) and filter (2
2), where food waste is absorbed to wash tank (15)
Although the suction is repeated at the inlet of the inlet pump (9) and the injection is repeated, a bypass water passage that does not pass through the filter (22) is formed after drainage, so during main washing and rinsing all filters (22) It prevents the food scraps from collecting on the pump and weakening the suction force of the pump (9).

The preliminarily prepared detergent is also put in the charging box (18) installed at one corner of the container bottom plate (25) during the preliminary washing.
The bypass lid (16) is closed by the box lid (17) of the bypass lid (16) and is set so as to prevent invasion of wash water. By force, the bypass lid (16) tilts in the opposite direction and abuts against the vertical wall (37) installed vertically from the container lid (1) to stop, and the wall (37) and the container bottom plate (25). Since the water channel leading to the filter (22) is blocked through the passage window between and, a bypass water channel is formed.

For the drainage to the outside, the drain pipe port (23) is opened by the rise of the piston (19), and the drainage is performed in this state.

When drainage is completed and water supply is started and the water level sensor (27) reaches the prescribed water level, the solenoid valve (24) is closed and water supply is stopped. When the sprayed water is sprayed through the nozzle (7) and the sprayed water hits the dishes and drops, the detergent bypass lid (16) in the input box (18) is opened. put out.

After the main washing for the first time, the detergent is dissolved in the water warmed by the heater (13) and becomes washing water, which further enhances the washing effect.

After the main washing, drainage, water supply, and rinsing steps of drainage are repeated through the bypass water passage, and when the washing is completed, the motor (8) becomes an idle operation of only the fans (11) and (10). Ventilation hole perforated in the ceiling of the container upper lid (1) by feeding a suitable amount of warm air into the container (2) from the air blow nozzle (14) through the air blow pipe (12) with a built-in heater (13), and drying the dishes. Exhausted through 29).

[0026]

As is apparent from the above examples, the present invention is a dishwasher for performing steps such as prewashing, washing and rinsing, and uses a water channel provided with a filter (22) for prewashing. In addition, the water channel that does not pass through the filter (22) is used during rinsing, and the filter (22) is used after removing the food scraps dropped from the dishes by the preliminary washing by the filter (22).
Main washing and rinsing are performed while circulating the washing water in a water passage that does not pass through. Therefore, it is possible to prevent a decrease in water pressure due to clogging of the filter (22) and prevent the washing water from being contaminated with food waste, and the main washing and rinsing are performed. Can be performed with a desired water pressure and clean wash water, and a remarkable effect can be obtained in that dishes can be properly washed in a short time with a small amount of wash water.

[Brief description of drawings]

FIG. 1 is a sectional view of an entire dishwasher according to the present invention.

FIG. 2 is a partial explanatory view of a dishwasher according to the present invention.

FIG. 3 is a sectional view of a pump.

[Explanation of symbols]

 (22) Filter

Claims (1)

[Claims] 1. A dishwasher for carrying out steps such as prewashing, washing and rinsing, wherein a waterway provided with a filter is used during prewashing and a waterway which does not pass through the filter is used during washing and rinsing. Dishwasher characterized by having done.