JPS5917326A - Tablewear washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial applications This invention relates to a dishwasher.

Conventional structure and its problems Conventionally, there are few dishwashers equipped with a device that crushes leftover food in the cleaning fluid circulation path and discharges it to the outside. They were captured by a filter installed in the kitchen, and the filter was taken out and thrown away after each wash. Since all the leftover food that is attached to the tableware is captured by this leftover filter, there is a large amount that accumulates, and the filter has to be cleaned every time it is washed, which is time consuming for Kanashi. there was. In addition, the δL cleaning solution passes through a filter that still traps leftover food, so at the end of the cleaning process, there is a possibility that the cleaning solution will be contaminated with the original leftover food and the tableware will be recontaminated.

In addition, some devices are equipped with a device to crush leftovers, but since the leftovers are crushed inside the cleaning pump or just before the inflow, the crushed leftovers circulate together with the cleaning solution, and the entire inside of the cleaning tank is pulverized. It had the disadvantage of getting dirty with leftover food.

Purpose of the Invention The purpose of the present invention is to crush the leftover food generated during washing in a dishwasher and discharge it with a drain pump, thereby reducing the amount of leftover food that accumulates in the washing tank. A drainage port is provided in the bottom recess of the cleaning tank, a drainage pipe is provided from the bottom of the drainage port to communicate with the drainage pump, and a water passage is provided from the side wall of the drainage port to communicate with the cleaning pump. A leftover crushing blade is provided in the mouth, and this crushing blade is arranged below the leftover filter that covers the drain opening upwardly, and above the drain filter attached to the entrance of the drain pipe provided at the bottom of the drain opening. This is a dishwasher in which the two filters are arranged in a partition wall that connects them in a cylindrical shape.

In the explanatory diagram of the embodiment, reference numeral 1 denotes an outer frame of a dishwasher, which has a cleaning tank 2 therein, and inside the cleaning tank 2, an upper basket 3 and a lower basket 4 are arranged in two stages, upper and lower. 6 is the upper and lower baskets and tableware set in 4; 6 is a lid that closes the front opening of the washing tank 2;

Each basket 3° is a washing pump that pressurizes a washing liquid to wash the tableware set in the basket, and the washing liquid pressurized from the washing nozzle 7.8 is jetted from below the basket.

10 is a drain port provided in the bottom recess 11 of the cleaning tank 2;
Reference numeral 2 denotes a leftover filter provided to cover the upper opening of the drain port 1o. 13 is a motor that drives the washing pump. 14 is a drain pump that discharges the cleaning liquid to the outside, and 15 is a drain pump 1 that is connected from the bottom of the drain port 1o described above.
This is a drainage pipe line that connects to 4. Reference numeral 16 denotes a drainage hose that guides the drainage discharged from the drainage pump 14 to the outside. 17 is a drainage filter attached to the entrance of the drainage pipe line 16 provided at the lower part of the drainage port 10; 18 is a partition wall projecting upward in a cylindrical shape from the outer edge of the upper surface of the drainage filter 17; is in contact with the bottom surface of. Leftover filter
The inner side 19 surrounded by the twelve partition walls 18 is made significantly rougher than the mesh 20 of the other waste filters 12.

Reference numeral 21 denotes a runner disposed inside the cleaning pump 9, and a pump casing 22 is disposed to surround the runner 21 to constitute the cleaning pump 9. The runner 21 and the motor 13 are directly connected to the motor shaft 23 and rotate integrally.

A mechanical seal 24 is interposed between the runner 21 and the pump casing 22 to watertightly seal the cleaning liquid inside the cleaning pump 9.

Reference numeral 25 denotes a crushing blade provided at the tip of a protruding extension of the central boss portion 26 of the runner 21, and the connecting portion is in the shape of a coil spring and is threadedly engaged with the tip of the boss portion 26 of the runner 21. The tip of the crushing blade 26 has an angular shape and is connected to the partition wall 1 described above.
It penetrates the side wall of B and projects into a crushing chamber 27 surrounded by a partition wall 18 and a refilter for leftovers and waste water from below. On the 2nd, the cleaning liquid accumulated in the drain port 10 is removed by the cleaning pump 9.
The water passage is concentrically connected to the inlet 30 of a sealed vane type runner 21 provided in the vortex chamber 29 of the cleaning pump 9 from the side wall of the drain. Reference numeral 32 denotes a suction pipe which is a fixed part, and is a sliding ring that slides internally into the inlet 30 of the front runner 21 and comes into contact with the side end surface 33 on the cleaning pump side of the suction pipe 31 constituting the water passage 28. 31 and the inflow port 30 of the runner 21, which is a rotating part, with a sliding ring 32 interposed between the cleaning pump 9
improves operating efficiency. Reference numeral 35 denotes a pump bracket 36 that connects and secures the cleaning pump 9 and the motor 13, and fixes the legs 36 that protrude from the cleaning pump 9.
is a disc-shaped drainage ring attached to the outer periphery of the motor shaft 23, and is provided close to the mechanical seal 24 near the cleaning pump 9.

This is to prevent water from entering the bearing part of the motor 13 along the motor shaft 23 in the event that water leaks from the mechanical seal 24 due to some kind of malfunction. The leaked water is blown away and does not reach the motor. Also, even when the motor is stopped, water falls downward through this drain and does not reach the motor.

To explain the function and effect of the crushing blade 26, the relatively fine mesh 20 of the leftover food filter 12 is used to trap the leftover food contained in the cleaning fluid when the cleaning fluid passes through the cleaning pump 9. The captured leftovers pass through a relatively coarse mesh 19 provided in the center of the leftover filter 12 and fall into the grinding chamber 27.

The scraps coarser than the mesh 19 remain on the scrap filter 12 until washing is completed. Grinding chamber 27
After the leftover food that has fallen into the container is finely crushed by the crushing blade 26,
It passes through a drainage filter 17 located below the grinding chamber, is pumped through a drainage pipe 16 by a drainage pump 14, and is discharged to the outside. However, leftovers larger than the mesh of the drain filter 1 remain in the crushing chamber and are crushed again by the crushing blades 26 before being discharged. Therefore, dishes may be placed in the dishwasher with leftover food still attached to them.

Effects of the Invention As described above, according to the dishwasher of the present invention, leftover food can be crushed and discharged together with washing water for dishes, and the inside of the washing machine can be kept clean at all times.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a dishwasher as an example of the present invention, and FIG. 2 is a sectional view of the lower part of the washing tank. 2...Cleaning tank, 9...Cleaning pump, 1
o... Drain port, 11 Bottom recess of cleaning tank, 12.
... Leftovers filter, 13 ... Motor, 14 ... Drain pump, 16 ... Drain pipe line, 17 ... Drain filter, 18...
...Bulkhead, 21...Runner, 23...
・Motor shaft, 26...Crushing blade, 26...
...The central boss part of the runner.

Claims (2)

[Claims] (1) A drainage port is provided in the bottom recess of the cleaning tank, a drainage pipe is provided from the bottom of 1 to communicate with the drainage pump, and a water passage is provided from the side wall of the drainage port to communicate with the cleaning pump. , a leftover crushing blade is provided in the drain 1, and this crushing blade is placed below the leftover filter that covers the υ1 water from above, and is placed at the entrance of the drain pipe provided at the bottom of the drain. A dishwasher that is placed above the installed drainage filter and inside a partition wall that connects both filters in a cylindrical shape. (2) The dishwasher according to claim 1, wherein the crushing blade has a central boss of a runner disposed in the washing pump vortex chamber projected and extended so as to penetrate the water passageway, and is provided at the tip thereof.