JPH0640865B2 - dishwasher - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a dishwasher for washing dishes and the like by spraying washing water.

2. Description of the Related Art Conventionally, a general dishwasher of this type is shown in FIG. In FIG. 7, 1 is a dish basket, 2 is a washing nozzle, 3 is a washing tank, 4 is a washing pump that feeds washing water to the washing nozzle 2, and 5 is residual food (contaminants adhering to dishes etc. A filter for collecting the leftovers), 6 is a drainage pump,
Reference numerals 7 and 8 are a water supply pipe and a drain pipe for washing water. In the dishwasher configured as described above, the washing water supplied from the water supply pipe 7 to the bottom of the washing tank 3 is washed by the washing pump 4.
By spraying from, the dishes leftovers on the dishes are washed off. The wash water containing the residual food is filtered by the filter 5, circulated to the wash pump 4 and jetted again from the wash nozzle 2, and after a predetermined time, is drained to the outside of the wash tank 3 by the drainage pump 6. Subsequently, a step of rinsing dishes and the like with newly supplied wash water is added two to three times. The wash water during this step is also referred to below as rinse water.

Problems to be Solved by the Invention However, in the above configuration, since the filter 5 is below the cleaning water surface, the residual food collected in the filter 5 during the operation of the cleaning pump 4 is the bottom of the cleaning tank 3 when the operation is stopped. Spread in the wash water. Therefore, after draining the wash water, the residual foods are scattered on the bottom surface of the cleaning tank 3 in addition to the filter 5, and the residual food collecting performance of the filter 5 is insufficient, and therefore the post-processing of the residual foods takes time. There was a problem.

Further, since the filter 5 is provided in the suction side path of the cleaning pump 4, the rinsing water circulates through the residual food collected in the filter 5 even during the rinsing process. Therefore, there was a problem that the fresh rinse water was contaminated by the residual vegetables.

The present invention solves such a problem, and an object of the present invention is to provide a dishwasher in which post-treatment of residual food is simple and rinse water and residual food are separated.

Means for Solving the Problems In order to solve the above problems, the present invention provides a cleaning tank equipped with a tableware basket and a nozzle, a cleaning pump for supplying the cleaning water at the bottom of the cleaning tank to an injection nozzle, and a residual pump. A filter for collecting vegetables and a bypass path for circulating the cleaning water in the cleaning tank in the cleaning tank are provided, and at the bottom of the cleaning tank, a crushing means for crushing the residual food is provided, and the filter is used for the cleaning. It is provided above the cleaning water surface at the bottom of the tank and at the discharge port of the bypass path.

Action With the above configuration, the residual food flows into the bypass path together with the cleaning water at the bottom of the cleaning tank, and is separated and collected by the filter. Further, since this filter is located above the cleaning water surface, it is possible to prevent the residual food collected in the filter by the cleaning water from being scattered on the bottom surface of the cleaning tank, so that the post-treatment of the residual food is easy. Moreover, by providing an opening / closing valve in the bypass and keeping it closed, the rinse water does not pass through the cooked food, so that the rinse water is prevented from being contaminated.

Further, since the crushing means is provided at the bottom of the cleaning tank, the residual food can be finely crushed and processed, and the bypass path, the injection nozzle, etc. are not clogged with the residual food.

Embodiment 1 FIG. 1 is a vertical sectional view of a dishwasher according to a first embodiment of the present invention. In FIG. 1, 9 is a dish basket, 10 is an injection nozzle, 11 is a cleaning tank, 12 is a cleaning pump that feeds cleaning water to the cleaning nozzle 10, 13 is a filter that collects leftovers, 14 is a drainage pump, Reference numerals 15 and 16 denote a water supply pipe and a drain pipe for the washing water, and the filter 13 is detachably provided from a filter case 17 located above the washing water surface. Reference numeral 18 denotes a protective net for preventing foreign matters such as chicken flesh, a lump of meat, and a spoon from being sucked into the cleaning pump 12, and is formed with an opening diameter of a size that allows ordinary reeds to pass through. Numerals 19 and 20 are fixed blades composed of a rotary blade and a large number of holes for finely crushing the leftover food in order to prevent the leftover food from clogging the injection nozzle 10 and the like. Reference numeral 21 is a bypass path branched from the drain path and connected to the filter case 17, and reference numerals 22 and 23 are solenoid valves which are opening / closing valves for opening / closing the bypass path 21 and the drain pipe 16.

The operation of the above configuration will be described below. When contaminated dishes are set in the dish basket 9, washing water is stored at the bottom of the washing tank 11, and the washing pump 12 is operated, the washing water is sent to the washing pump 12 through the protective net 18 and is sprayed from the washing nozzle 10. Rinse off the tableware leftovers. The leftover is the washing tank 1
1 Dropped with cleaning water on the bottom, and the rotary blade 19 and fixed blade 20
The powder is sucked into the cleaning pump 12 while being pulverized by, and is sprayed again with the cleaning water from the cleaning nozzle 10, and this is repeated.
At this time, by operating the drainage pump 14 at the same time with the solenoid valve 22 opened and 23 closed, part of the wash water is sent to the filter 13 through the bypass path 21, and the residual food in the wash water is filtered by the filter 13. Then, the wash water containing no residual food is sent to the wash tank 11. By this operation, the water drops from the dishes and the like, together with the washing water, the washing pump 12, the washing nozzle 10,
The residual food circulating in the cleaning tank 11 is gradually collected by the filter 13 so that the cleaning water has no residual food. After the operation for a predetermined time, the cleaning pump 12 is stopped and the solenoid valve 22 is closed 23
When opened, the washing water is drained to the outside from the drainage pipe 16 by the drainage pump 14, and no residue remains on the bottom of the washing tank 11 unlike the conventional dishwasher.

Next, fresh wash water is supplied to rinse the dishes, and the wash pump 12 is operated. During this rinsing step, since the residual food is collected above the surface of the cleaning water, the residual food does not spread again in the cleaning water as in the conventional case. Moreover, since the filter 13 is provided in the drainage path instead of the suction side path of the cleaning pump as in the conventional example, the rinse water does not pass through the residual dishes and is a fresh rinse water which is not contaminated by the residual dishes. The dishes are rinsed. In addition, in the present embodiment, the above-mentioned washing step 1 time and this rinsing step 2 times are continuously and automatically performed,
Cleaning is completed.

As described above, according to the present embodiment, by disposing the filter 13 above the surface of the washing water to collect the residual food, the scattering of the residual food on the bottom surface of the cleaning tank 11 after the cleaning is eliminated, and the residual food Since it is separate from the rinse water, the cleaning can be completed with fresh rinse water that is not contaminated.

Further, since the rotary blade 19 and the fixed blade 20 for crushing the leftover food are provided at the bottom of the cleaning tank 11, the leftover food can be finely crushed and processed, and the bypass passage 21 and the injection nozzle 10 are clogged with the leftover food. There is no.

FIG. 2 is a vertical sectional view of a dishwasher showing a second embodiment of the present invention. In FIG. 2, 24 is a tableware basket, 25 is a cleaning nozzle, 26 is a cleaning tank, 27 is a cleaning pump, 28 is a drainage pump, and the above is the same as the configuration of FIG. The difference from the configuration of FIG. 1 is that a filter 29 is provided in the drainage path from the drainage pump 28, and a bypass path 30 that is continuously branched therefrom is provided, and 31 and 32 are solenoid valves that open and close the path. . The operations of the cleaning step and the residual food collecting method in this embodiment are the same as those in the first embodiment, but as a unique effect, even in the step of sending the cleaning water to the bypass path 30, the step of discharging the cleaning water to the outside of the cleaning tank 26. However, since the wash water first passes through the filter 29 to collect the residual food,
There is no risk of malfunction caused by the accumulation of residue on the solenoid valves 31 and 32 and the drainage path. In addition, the first
Also, in the second embodiment, the discharge side path of the drainage pump is used to provide the filter above the washing water surface, but the same operation and effect can be obtained even if the filter is provided in the suction side path of the drainage pump. be able to.

FIG. 3 is a vertical sectional view of a dishwasher showing a third embodiment of the present invention. The configuration of FIG. 3 is similar to the configuration of FIG. 1, but the difference from the configuration of FIG. 1 is that a filter 33 is provided above the dish basket 32. Generally, the opening of the washing tank of the dishwasher and the door covering the opening are on the front surface or the upper surface of the main body, and it was necessary to pull the dish basket forward or lift it upward to take out the filter from the washing tank. The standard tableware for the entire tableware basket is about 6 to 6 people.
There is a tableware weight of 9 kg, and moving it requires labor. However, in this embodiment, as a peculiar effect, the filter basket 33 can be taken out of the washing tank and post-treatment of the leftover food can be carried out by simply opening the door provided on the upper surface of the main body 34 while leaving the tableware basket 32 as it is. Further, as a fourth embodiment of the present invention, by providing the filter 35 on the door 36 as shown in FIG. 4, a much simpler one can be obtained.
Further, as a fifth embodiment, as shown in FIG.
By providing 7 to be detachable from the outside without opening the door 38 of the main body, it is possible to easily obtain the filter. In this case, it goes without saying that the filter is not limited to above the tableware basket, but may be above the washing water surface.

FIG. 6 is a vertical sectional view of a dishwasher showing a sixth embodiment of the present invention. The configuration of FIG. 6 is the same as the configuration of FIG. 2, except that the filter 39 is provided outside the cleaning tank 40. The washing process and the operation of collecting the residual foods in this embodiment are the same as those in the second embodiment, but the filter 39 is taken out of the main body 41 from a place different from the opening of the washing tank 40. It Therefore, as an effect peculiar to this embodiment, the leftover food collected in the filter 39 and the tableware in the cleaning tank 40 are separated, and if the leftover food is forgotten for a long time, a strange odor, It can be mentioned that tableware is not contaminated by various bacteria and is hygienic.

EFFECTS OF THE INVENTION As described above, according to the present invention, since the filter is provided above the surface of the washing water, the dispersal of the residual food due to the washing water can be prevented and the post-treatment is extremely simple. Furthermore, by providing an opening / closing valve in the bypass path, rinsing can be performed with fresh wash water that does not pass through the leftover dishes.

Furthermore, since the crushing means is provided at the bottom of the washing tank, the residual food can be finely crushed and processed, and the bypass route, injection nozzle, etc. will not be clogged with the residual food, and rinse with the fresh cleaning water assured above It is possible to provide a pictographic dishwasher capable of performing.

[Brief description of drawings]

1 to 6 are vertical cross-sectional views of the dishwasher in the first to sixth embodiments of the present invention, and FIG. 7 is a vertical cross-sectional view of the conventional dishwasher. 9 ... tableware basket, 10 ... washing nozzle, 11 ... washing tank, 12 ... washing pump, 13 ... filter, 14 ...
Drain pump, 21 ... Bypass route.

Claims (7)

[Claims] 1. A washing tank equipped with a tableware basket and a nozzle,
A cleaning pump for feeding the cleaning water at the bottom of the cleaning tank to the injection nozzle, a filter for collecting leftovers, and a bypass path for circulating the cleaning water in the cleaning tank in the cleaning tank are provided, and Is a crushing means for crushing the leftover food, and the filter is provided above the cleaning water surface at the bottom of the cleaning tank and at the discharge port of the bypass path. 2. The dishwasher according to claim 1, wherein an opening / closing valve is provided in the bypass path. 3. The dishwasher according to claim 1, wherein the bypass path branches into a drainage path and a washing tank, and a filter is provided upstream of the branch point. 4. The dishwasher according to claim 1, wherein the filter is provided above the dish basket. 5. The dishwasher according to claim 1, wherein the filter is provided on a door that covers the opening of the cleaning tank. 6. The dishwasher according to claim 1, wherein the filter is provided outside the washing tank. 7. A filter provided detachably from the outside of the main body according to claim 1, claim 2, claim 3, claim 4, claim 5, and claim 5.
The dishwasher according to any one of paragraphs and 6.