JPH0249626A - Dishwasher - Google Patents

Abstract

PURPOSE:To simply take out and set tableware, to easily recognize the contamination of a filter and further to simply clean the filter even during the washing of the tableware by providing a second drain pool in which the filter is housed in a drain path in the outside of a dishwasher. CONSTITUTION:During the washing of the tableware, washing water is fed under pressure to an injection nozzle 12 by a circulating pump 10 from a first drain pool 4. The washing water is injected to the tableware 20 from respective injection ports 13 to wash the tableware 20. When the circulating pump 10 is stopped with the elapse of a prescribed time, a drain pump 15 is operated, the washing water in the first drain pool 4 is discharged to the outside of the washing device main body 1 via a drain pipe 14, a second drain pool 21, a filler 24, a drain pipe 14a. In this case, the second drain pool 21 is provided in the outside of the washing device main body 1, so that the contamination of the washing water and the storage of garbage to the filter 24 can be constantly recognized. The filter 24, therefore can be taken out from the second drain pool 21, cleaned and reset as desired.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dishwasher that sprays washing water onto dishes stored in a washing cabinet to wash them. It is about improvement.

[Prior Art] Conventionally, dishes are washed by rotating a spray nozzle using a washing water supply device such as a circulation pump, and spraying washing water onto the dishes in a washing cabinet from a spray port provided in the spray nozzle. Washing machines are well known. An example thereof will be explained with reference to FIG.

In the figure, (1) is the washing machine body, (2) is the washing chamber installed inside the washing machine body (1), and the water supply port (3) is located at the top.
A concave drainage basin (4) having a water inlet (5) for circulating wash water and a drain port (6) for discharging waste water is provided at the bottom. (7) is a filter detachably set in the upper opening of the drainage basin (4). (8) is a water supply hose whose one end is connected to the water supply port (3) via the electromagnetic on/off valve (9), and the other end is extended outside the washer body (1) and connected to a water faucet, etc. be done. (10) is a circulation pump connected to the water supply port (5), and its output side is the injection nozzle (1) with the diameter of the vibrator (11).
2) is connected to. (13) is the injection nozzle (12)
There are multiple injection ports installed in the (14) is a drain pipe with one end connected to the drain port (6) of the drain basin (4);
It is taken out of the washing machine main body (1) via a drainage pump (15). (1B) is the opening provided in the washing machine body (1), (17) is the door that opens and closes this opening (1G), (
19) is a basket for storing tableware (20), and a washing cabinet (2)
It is accommodated in the washing chamber (2) from the opening (IB>) along the rail (18) provided inside.

Next, the operation of the dishwasher configured as described above will be explained. First, open the electromagnetic on-off valve (9) and open the washing chamber (2).
Supply a predetermined amount of cleaning water into the tank. The cleaning water that has accumulated above the filter (7) is guided to the injection nozzle (12) by the operation of the circulation pump (10), and the injection nozzle (12) receives the water from the circulation pump (10) while rotating. Washing water is sprayed from the injection port (13) onto the tableware (20) in the basket (19) to wash the tableware (20).

During cleaning, the circulating cleaning water is filtered by the filter (7) to prevent clogging of the circulation pump (10).

After cleaning for a predetermined period of time, the circulation pump (10) is stopped and the drainage pump (15) is activated to drain the drainage basin (4).
The cleaning water inside is forcibly discharged to the outside of the washer main body (1), for example, to the kitchen sink. Next, new wash water is supplied again to drive the circulation pump (10), rinsing is performed, and the wash water is discharged. Finally, the heater (not shown) is energized or hot air is blown into the washing cabinet (2) to remove the tableware (19).
Dry. It may be rinsed with hot water before drying.

When you have finished washing the tableware (20), open the door (17), pull out the basket (19) in which the tableware (20) is stored, and then take out the filter (A) and remove the filter (7).
), discard and clean the residue that has accumulated in the drain basin (4), and place it again on top of the drainage basin (4). This treatment of residue from the filter (7) usually needs to be carried out every time the filter (7) is cleaned in order to prevent the injection pressure of the circulation pump (10) from decreasing due to clogging.

[Problem to be solved by the invention] Since the conventional dishwasher is configured as described above,
The filter (7) must be taken out from the cleaning chamber (2), which is difficult to remove, each time it is washed and then set back in, which is a tedious task, and the degree of dirt on the filter (7) cannot be checked from the outside. , there was a problem that you could not tell until you took it out. More importantly, there is a structural problem in that the washing medium has to be repeatedly washed with the washing water that has passed through the filter (7) on which residue has adhered, resulting in a decrease in the washing ability.

The present invention was made to solve the above-mentioned problems, and it is easy to take out and set the filter, it is easy to check how dirty the filter is, and it is also possible to clean the filter even when washing tableware. By doing it easily,
The object of the present invention is to obtain a dishwasher that can improve cleaning performance.

[Means for Solving the Problems] The present invention has been made to achieve the above object, and includes an opening for putting in and taking out tableware, a door for opening and closing this opening, and a jet nozzle. a washing chamber consisting of a spray nozzle, etc.;
A dishwasher that consists of a drainage basin provided at the bottom of the washing chamber, a circulation system path that sends washing water to the injection nozzle, and a drainage system path extending from the drainage basin to the outside of the washing machine housing the washing chamber. In a dishwasher, a second drainage basin containing a filter inside is provided in the drainage system outside the washing machine main body.

A dishwasher in which the filter of the second drainage basin is formed in the shape of a bell box, and the filter is provided with an opening/closing part that can be opened and closed.

A dishwasher in which a second drainage basin is provided with a lid integrally combined with a filter.

A dishwasher in which a lid is provided with a ventilation hole that communicates a second drainage basin with the atmosphere, and a ball valve is provided in this ventilation hole.

The lid is provided with a ventilation hole that communicates the second drainage basin with the atmosphere, and a valve is provided on the outside of the lid that covers this ventilation hole and automatically opens and closes the ventilation hole according to the pressure inside the second drainage basin. Dishwasher.

A dishwasher in which a washing machine main body is provided with a connection port and an engaging portion, and a second drainage basin is provided with a drain port that connects to the connection port and a locking piece that engages with the engaging portion.

A dishwasher in which the lower part of the second drainage basin is pivotably fixed to the main body of the washing machine.

A dishware dish in which a frame with a beam-shaped cross section and a filter formed on one side is removably arranged in a drainage basin provided at the bottom of a washing cabinet so that the filter is located in the washing water circulation path. washing machine.

The bottom plate of the washing chamber extends to almost the center of the drainage basin, and one end is pivoted to the bottom plate of the drainage basin between the water supply port and the discharge port of the washing water circulation system so as to be rotatable within a predetermined range. A dishwasher with a filter installed so that the other end can come into contact with the bottom plate of the washing cabinet.

The bottom plate of the drainage basin has a water inlet for the circulation system in the center, drains connected to the second drainage basin on both sides, and a square with filters formed on at least two sides excluding the bottom. This dishwasher is equipped with a removable shaped filter frame with its bottom facing up, with the water supply port facing inside and the drain port facing outside.

A dishwasher in which all or part of a second drainage basin is transparent or translucent. and a dishwasher in which a mark for observing the water level in the washing chamber is provided in the transparent or semi-transparent part of the second drainage basin.

It provides:

[Function] When the washing of tableware is completed, the washing water containing the residue generated by washing is discharged from the drain port through the drain vibrator and the second drain pool by the drain pump. At this time, the residue contained in the wastewater is captured by the filter in the second wastewater basin.

When residue accumulates on the filter, remove the filter to the outside and discard the residue accumulated inside.

Further, the opening/closing part provided on the filter of the second drainage basin is opened to discharge the residue accumulated inside.

The filter is attached to and removed from the second drainage basin by means of a lid integrally connected to the filter.

A ventilation hole is provided in the lid and a ball valve is installed to ensure a smooth flow of drainage.

A valve is installed to automatically open and close the ventilation hole provided in the lid, allowing smooth water supply and drainage between the washing chamber and the second drainage basin.

A connection port and an engaging part are provided in the washing machine body, and a drain port and a locking piece to be connected to the second drainage basin are provided to attach and detach the second drainage basin.

The second drainage basin is pivoted to the washer body, and the filter is attached and detached by rotating it.

A filter is provided in the drainage basin provided at the bottom of the cleaning chamber to prevent residue from entering the circulation path.

By providing a transparent or semi-transparent second drainage basin,
You can see how much residue has accumulated inside.

By providing a mark on the transparent or semi-transparent part, the water level of the washing water in the washing chamber can be observed.

[Embodiments of the invention] FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.

Note that the same or equivalent parts as in the conventional example shown in FIG. 19 are denoted by the same reference numerals, and the explanation thereof will be omitted. In the figure, (4) is the first drainage basin provided at the bottom of the washing chamber (2), and (21) is the first drainage basin provided outside the washing machine body (1) (in this example, below the opening (16)). The drain opening (6) of the first drainage basin (4) and the drainage inlet (22) of the second drainage basin (21) are connected to a drainage vibrator. (
14) and a second drainage basin (21).
The drain port (23) is connected to a second drain vibrator (14a), and is taken out to the outside of the washing machine main body (1) via a drain pump (10), and is led to, for example, a kitchen sink.

In addition, the second drainage vibrator (14a) and the drainage pump (1
5) may be provided outside the washing machine main body (1). (2
4) is a filter disposed in the second drainage basin (21), which is connected to the inlet (22) to which the drainage vibrator (14) is connected, and the cleaning water containing residue is passed through the filter (24).
sent inside.

Next, the present invention will be explained in detail. While washing the tableware (20), the washing water flows from the first drainage basin (4) to the circulation pump (
10) to the injection nozzle (12), and the washing water is jetted from each injection port (13) toward the tableware (20) to wash the tableware (20). When the circulation pump (10) stops after a predetermined period of time has elapsed, the drainage pump (15) operates, and the wash water in the first drainage basin (4) is drained into the drainage vibrator (1).
4) The water is discharged to the outside of the washing machine main body (1) through the second drainage basin (21), filter (24), and drainage vibrator (14a).

In this case, the second drainage basin (21) is connected to the washing machine body (1).
Since it is provided on the outside of the filter (24), it is possible to constantly check the degree of contamination of the washing water and the accumulation of residue on the filter (24). Therefore, the filter (24) can be taken out from the second drainage basin (21), cleaned, and reset if necessary.

FIG. 2 is a perspective view showing another embodiment of the second drainage basin (21) according to the present invention. In this embodiment, the filter (24) disposed in the second drainage basin (21) is formed into a nine-box shape, and a part (bottom in this embodiment) has a hinge (
26) is provided with an opening/closing part (25) that can be opened and closed freely.

According to the filter (24) configured in this way, when residue etc. accumulate inside, the residue etc. can be easily discharged by taking the filter (24) outside and opening the opening/closing part (25). It is also easy to clean the inside.

FIG. 3 is a sectional view showing yet another embodiment of the second drainage basin (21). In this embodiment, the filter (24) is made of synthetic resin, metal plate, etc. and has a VU-shaped cross section. The M (27) of the second drainage basin (21) and the filter (24) are integrally formed by molding or the like, or are integrally connected.

With this configuration, when the lid (27) is lifted, the filter (24) can also be taken out.
The filter (24) is easy to attach and detach, and M (2
7) makes it possible to prevent foreign matter from entering the second drainage basin (21) through the upper opening. In this case, as in the embodiment shown in FIG.
If an opening/closing part (25) is provided in a part of 4), the residue etc. can be easily discharged.

The embodiment of FIG. 4 is the lid (27) in the embodiment of FIG.
In addition, a ventilation hole (
28), and a ball valve (29) is provided in this ventilation hole (28).
), the ventilation hole (28) is opened and closed according to the internal pressure of the second drainage basin (21) using the ball valve (29).
The drainage pipes (14) and (14a) are designed to allow drainage to flow smoothly.

FIG. 5 shows another embodiment of the second drainage basin (21). In this embodiment, a ventilation hole (28a) is provided in the center of the hole of the lid (27) in which the filter (24) is provided, and the ventilation hole (28a) is provided to penetrate vertically. A rubber valve (30) is arranged so as to cover the ventilation hole (28a), and one end (30a) of the rubber valve (30) is provided with a lid (
27).

In this embodiment configured as described above, when water is supplied, the rubber valve (30) opens the ventilation hole (28a) as shown by the broken line in FIG. 6(b), so that the second drainage Accumulation (
21) can also be filled with water to the same level as the water level in the washing chamber (2). On the other hand, when cleaning is completed and drainage begins, the pressure inside the second drainage basin (21) becomes negative, so the rubber valve (30) is sucked, as shown by the solid line in Figure 6(b). Since the vent hole (28a) is closed in close contact with the lid (27), water in the washing chamber (2) can be easily drained.

By providing the ventilation hole (28a) and the rubber valve (30) in the M (27) of the second drainage basin (21) in this way,
To prevent the water in the second drainage basin (21) from being drained first during drainage, and air from entering the drainage pump (15) through the drainage port (23), thereby reducing the function of the drainage pump (15). .

Also, when water is supplied, the air in the second drainage basin (21) is drained to the outside through the ventilation hole (28a), so the cleaning chamber (2)
The wash water inside is easily introduced into the second drainage basin (21).

Figure 7 shows the second drainage basin (2) for the washer body (1).
1) is a sectional view showing an example of the attachment/detachment mechanism, and FIG. 8 is an enlarged sectional view of the main part thereof. In the figure, (23) is a drain port protruding from the lower part of the second drain basin (21), and a sealing material (31) is attached to the outer periphery. (32) is a locking piece that has a locking portion (32a) at its tip and is attached above the second drainage basin (2[) so as to protrude in the same direction as the drain port (23). (33) is a connection port for a second drainage basin (21) protruding outward from the washer body (1);
4) is provided concentrically with the connection port (33) and protrudes inwardly,
This is a connection port to which a drain pipe (14a) is connected. (3
5) is the washing machine body (1) above the connection port (33).
A concave engagement part provided in the engagement part (3) of the engagement piece (32)
2a) is provided with a recess (35a) in which it engages.

In this embodiment configured as described above, the drain port (28) of the second drain pool (21) is connected to the connection port (33) of the washing machine main body (1), and the locking piece (32) is connected to the connection port (33) of the washing machine main body (1). Joint (35)
By abutting on the second drainage basin (21) and pressing the second drainage basin (21) in the direction of arrow a, the second drainage basin (21) can be attached to the washing machine main body (1) in a one-touch and watertight manner.

To remove the second drainage basin (21), just pull it in the direction of the arrow.

Although not shown, the other drain pipe (14) is also connected to the second drain basin (21) with the same structure as the above-mentioned drain port (23) and connection port (33).

In the embodiment shown in Fig. 9, the lower part of the second drainage basin (21) is rotatably connected to the washer main body (1) by means of a bottle, concave portions, convex portions, etc. (3B), and this pin, etc. (36 ) as a fulcrum as shown by the dashed line, the filter (24) can be easily attached and detached.

FIG. 1O is a longitudinal sectional view of another embodiment of the present invention, and FIG. 11 is an enlarged sectional view of the main part thereof. This example is shown in Figures 1 to 9.
The first drain basin (4) of the dishwasher having the second drain basin (21) shown in the figure is further provided with a filter. (3T) is a frame with a V-shaped cross section, and a filter (7a) is installed on the slope of the frame, and the filter (7a) is placed between the water supply port (5) and the drain port (6) for circulation. It is used as a filter for cleaning water in waterways. Note that this frame (37) is detachably attached to the upper part of the first drainage basin (4), and when attached, the filter (7a) is tilted downward with respect to the inlet side of the cleaning water into the circulation channel. There is.

In this embodiment configured as described above, tableware (2
0) is sent from the first drainage basin (4) to the filter (7a) and the cleaning water inlet (5) to the injection nozzle (12) by the circulation pump (10), The water is ejected from the injection port (13) to wash the tableware, and is returned to the first drainage basin (4) to repeat the circulation process. At this time, the residue (50) contained in the cleaning water adheres to the surface of the filter (7a) as shown in FIG. 11.

Next, the circulation pump (10) is stopped, and the drainage pump (15) is stopped.
) is activated to proceed to the draining process, the residue (50) adhering to the filter (7a) falls due to its own weight and the flow of wastewater, and the wastewater containing the residue (50) flows from the drain port (6) to the drain vibrator (14). ) is sent to the second drainage basin (21) with a diameter of
Only waste water is discharged via the sump pump (15).

In the conventional dishwasher shown in Fig. 19, all the washing water and wastewater during circulation pass through the filter (7), and the residue (50) adheres to the top surface of the filter (7), so that the washing ends. It was extremely troublesome because the filter (7) had to be removed from the washing machine main body (1) and removed from the washing machine body (1) every time the residue (50) was disposed of, but according to this embodiment, the filter (7a) Because almost no residue (50) accumulates, there is almost no need to take it out and clean it.

FIG. 12 is a cross-sectional view showing another embodiment of the filter for the first drainage basin according to the present invention, and FIG. 13 is an enlarged cross-sectional view of the main part thereof. In the figure, (38) is a support provided between the water supply port (5) to the circulation pump (10) at the bottom of the first drainage basin (4) and the drain port (6) to the drainage vibe (14). Part (7a) is a beam arc-shaped filter having a contact part (7b) at the upper end, and the lower end is rotatable within a predetermined range θ and detachable by a pin or the like (39) on the support part (38). The shaft is fixed to. Note that (2a) is the first drainage basin (
The upper opening of 4a) is a washing chamber (2) that covers 1/92 of the area.
This is the bottom plate.

In this embodiment configured as described above, when cleaning is started, the filter (7a) is rotated clockwise around the pin etc. (39) by the suction pressure of the circulation pump (10) as shown in FIG. Then, the contact portion (7b) hits the end of the bottom plate (2a) and stops. Therefore, the residue (50) contained in the circulating cleaning water is blocked by the filter (7a),
Adheres to its surface. Circulation pump (10) after cleaning
When the filter (7a) stops, the pin etc. (
39) in the counterclockwise direction (indicated by the dashed line) by θ and then stops. As a result, the residue (50) adhering to the surface of the filter (7a) falls, and during the drainage process, the residue (50)
As in the case of the illustrated embodiment, it is included in the waste water and sent to the second drainage basin (21).

FIG. 14 is a sectional view of another embodiment of the first drainage basin and the filter attached thereto according to the present invention, and FIG. 15 is an enlarged sectional view of the main parts thereof. In this embodiment, a water inlet (5) is provided at the center of the bottom of the first drain basin (4) and projects into the drain basin (4), and is connected to the circulation pump (10). ) drain holes (8) on both sides,
(6a) is provided and connected to the second drainage basin (21) by a drainage vibrator (14). (37a) is a square-shaped filter frame, and at least two sides except the bottom have filters (7
a) is formed, and it can be attached to and removed from the bottom of the second drainage basin (4) with the bottom facing up, the water inlet (5) being on the inside, and the drain outlet (J, (6a) being on the outside). Mounted as possible.

In this embodiment configured as described above, tableware (2
During washing of step 0), the residue (50) contained in the washing water is
As shown in the figure, it adheres to the peripheral surface of the filter (7a) and is prevented from flowing into the interior, allowing only cleaning water to circulate. When the circulation pump (10) is stopped and the drainage pump (15) is activated, the residue (50) adhering to the surface of the filter (7a) is peeled off by the flow of drainage water and drained to the drainage port (6).
(6a) is sent to a second drainage basin (21) via a drainage pump (14). When the filter (7a) becomes dirty, the filter frame (37a) can be removed from the cleaning chamber (2) and cleaned outside.

FIG. 16 is an enlarged sectional view of main parts of another embodiment of the present invention,
FIG. 7 is a front perspective view of the main parts of this embodiment, and FIG. 18 is a front view of the second drainage basin. In the figure, (2a
) is the bottom plate of the washing cabinet (2), and at the bottom is the first drainage basin (
4) are formed in one direction, and are diagonally partitioned by a filter (7a) at the center of the chamber, and a circulation chamber (7a) is formed in one direction.
4a) and a drainage chamber (4b). (
14) is a drainage vibrator whose one end opens into the drainage chamber (4b) and whose other end protrudes to the outside through the front plate of the washing machine main body (1). (41) is a cover plate provided at the upper opening of the first drainage basin (4), with a through hole (
42), a spring receiver (43) equipped with a filter section is attached to the lower surface of this through hole (42), and a valve (44) is attached via a spring (45). This valve (44) closes the through hole (42) due to the pressure when the water level of the washing water in the washing chamber (2) is high, and when the water level becomes low and the pressure decreases, the spring (44) closes the through hole (42).
5), the through hole (42) is opened to form a water channel.

Note that a filter (7a) is attached to the cover plate (41) and can be taken out together with the cover plate (41).

(21) is the second one attached to the outside of the washer body (1)
This drainage basin consists of a box-shaped container with an open top, and the bottom is watertightly attached to the tip of a drainage vibrator (14). (27) is the lid of the second drainage basin (21);
a) is a knob. (24) is a box-shaped filter, all or part of its six sides are made of a mesh or a plate with many small holes, and a drainage vibrator (14) is provided on the washer body (1) side. ) is provided with a hole for insertion or alignment. (2
4a) is a U-shaped support plate, and the lower end is a filter (24)
The upper end portion is fixed to the lid (27).

(28) is provided at the bottom of the second drainage basin (21),
This is a drain port connected to a drain pump (not shown).

Next, the operation of this embodiment will be explained. When a basket (19) containing tableware (20) is stored in the washing cabinet (2) and washed, first, washing water is supplied into the washing cabinet (2). As a result, the washing water is distributed to the lower part of the washing chamber (2), the first drainage basin (4), the drainage vibrator (14), and the second drainage basin (21).
The valve (44) is closed by water pressure. Next, when cleaning starts, the circulation pump (10
) is activated to circulate the washing water, and the washing water is sprayed from the injection port (13) of the injection nozzle (12) to wash the tableware (20). Washing water containing residue flowing from the tableware (20) during washing is drawn to the circulation pump (10) and sent to the water channel (4).
6) to the drainage chamber (4b), and the filter (7
circulate through a).

At this time, the residue (50) contained in the cleaning water is blocked by the filter (7a) and attached to the surface, so it does not flow into the circulation chamber (4a), and only the cleaning water enters the circulation chamber (4a).
4a).

When cleaning is completed, the circulation pump (10) is stopped and the drainage pump (not shown) is activated. As a result, the washing cabinet (2)
Washing water in the first drainage basin (4) is drained from the drainage vibrator (■
4), passes through a second drainage basin (21), a filter (24), and is discharged from a drainage port (23). At this time, the residue (50) attached to the filter (7a) is washed away by the drainage, and the residue (50) attached to the filter (7a) is washed away along with the residue (50) contained in the washing water.
24) is captured and stored. When the washing water in the washing chamber (2) decreases, the valve (44) opens and the washing water flows into the rain channel (42).
), (4B) into the first drainage basin (4).

When the drainage is finished, fill the second drainage basin (2) as necessary.
1) Pull up the lid (27) to take out the filter (24) and discard the residue (50) accumulated inside.

Then, supply fresh cleaning water again and perform rinsing.

In each of the above embodiments, the second drainage basin (21) is provided on the front surface of the washing machine main body (1) in contact with the main body (1). It may be provided, or it may be provided separately apart from the main body (1).

Further, the second drainage basin (21) may be formed of an opaque material, but it is convenient if the whole or a part thereof is made transparent or translucent because the accumulation of residue can be observed from the outside. In addition, since the washing water in the second drainage basin (21) is at the same water level as the washing water in the washing chamber (2), the transparent or translucent part of the second drainage basin (21) mentioned above has a If a scale or other mark (47) is provided as shown in the figure, the supply and drainage status of the washing water can be known from the outside.

Furthermore, in the above description, an example is shown in which the present invention is implemented in a dishwasher that washes tableware by jetting washing water from a jet port provided in a jet nozzle that rotates using hydraulic power sent by a circulation pump. However, the present invention can also be applied to other types of dishwashers, such as those in which a spray nozzle with a spray port is moved horizontally to spray washing water, thereby washing tableware. It can be implemented.

[Effects of the Invention] As is clear from the above description, the present invention provides a second drainage basin having a removable filter on the drainage vibrator outside the washing machine main body, and uses this filter to remove the residue generated by washing. Since the product is captured, accumulated, and then disposed of, there is no risk that the functionality of the injection nozzle will deteriorate due to the accumulation of residue.Also, there is no risk that the eluted residue will re-adhere to the tableware during rinsing, resulting in a beautiful finish. .

Further, since the filter of the second drainage basin is provided with an opening/closing part, the residue accumulated inside can be easily discharged.

Since the second drainage basin is provided with a lid that is integrally connected to the filter, the filter can be taken out at the same time by pulling up the lid, making it easy to attach and remove the filter.

Since a ventilation hole is provided in the lid and a ball valve is provided, or a valve is provided to cover the ventilation hole, the pressure in the second drainage basin is adjusted when supplying and draining water, so that supply and drainage can be performed smoothly. Can be done.

The washer body has a drain connection port and an engaging part, and the second drain pool has a connecting drain port and a locking piece, so the second drain pool can be attached to and removed from the washer body with a single touch. .

Since the second drainage basin is rotatably fixed to the main body of the washer, the filter can be easily attached and detached.

Since a filter is provided in the circulation path of the drainage basin provided at the bottom of the washing chamber, there is no fear that residue will enter the circulation path during washing, and the circulation pump can be operated efficiently.

Since all or part of the second drainage basin is made transparent or semi-transparent, the accumulation of residue in the filter can be easily observed from the outside.

Further, by using the marks provided in the transparent or opaque parts, it is possible to confirm the supply and drainage status of the washing water inside the washing chamber from the outside, which is a great result of implementation.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of the present invention, Figs. 2 to 5 are perspective views and sectional views of an embodiment of the second drainage basin, and Figs. 5 is a plan view and a sectional view showing the main parts of the embodiment; FIGS. 7 and 9 are sectional views showing the drainage basin shown in FIG. 2; FIG. 8 is an enlarged sectional view of the main parts of the embodiment shown in FIG. 7; 1st O
12 and 14 are sectional views of other embodiments of the present invention, and FIGS. 11, 13, and 15 are sectional views of 10
12 and 14; FIG. 6 is a sectional view showing the main parts of still another embodiment of the present invention;
Figure 7 is an external perspective view of the main part, partially shown in cross section.
8 is a front view of the second drainage basin shown in FIG. 16, and FIG. 19 is a sectional view showing an example of a conventional dishwasher. In the figure, (1) is the washing machine body, (2) is the washing cabinet, (
4) is the first drainage basin, (5) is the water supply port, (6) is the drain port, (7a), (24) is the filter, (10) is the circulation pump, (12) is the injection nozzle, (13) is the injection port,
(14), (14a) is the drain pipe, (15) is the drain pump, (16) is the opening, (17) is the door, (19)
(20) is the tableware, (21) is the second drainage basin,
(23) is the drain, (25) is the opening/closing part, (27) is the lid,
(28), (28a) is a ventilation hole, (29) is a ball valve, (30) is a rubber valve, (32) is a locking piece, (33) is a connection port, (35) is an engaging part, (36) ) is a bottle etc., (37
) is a frame, (37a) is a filter frame, (47) is a mark, and (50) is a residue. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (12)

[Claims] (1) A washing cabinet consisting of an opening for putting in and taking out tableware, a door for opening and closing this opening, a spray nozzle having a spray port, a drainage basin provided at the bottom of the washing cabinet, and the spray nozzle. In a dishwasher consisting of a circulation system path for sending washing water to the washing machine, and a drainage system path extending from the drainage basin to the outside of the washing machine body housing the washing chamber, the drainage system is provided outside the washing machine main body. A dishwasher characterized in that a second drainage basin is provided in the passageway, the second drainage basin containing a filter therein. (2) The filter of the second drainage basin is formed into a box shape,
The dishwasher according to claim 1, wherein the filter is provided with an opening/closing part that can be opened and closed. (3) The dishwasher according to claim 1, wherein the second drainage basin is provided with a lid that is integrally connected to the filter. (4) The dishwasher according to claim (1), wherein the lid is provided with a vent hole that communicates the second drainage basin with the atmosphere, and a ball valve is provided in the vent hole. (5) The lid is provided with a ventilation hole that communicates the second drainage basin with the atmosphere, and the ventilation hole is covered with a second drainage hole on the outside of the lid.
2. The dishwasher according to claim 1, further comprising a valve that automatically opens and closes the vent hole according to the pressure in the drainage basin. (6) The main body of the washing machine is provided with a connection port and an engaging portion, and the second drainage basin is provided with a drain port that connects to the connection port and a locking piece that engages with the engagement portion. The dishwasher according to any one of claims (1) to (5). (7) The dishwasher according to any one of claims (1) to (5), wherein a lower portion of the second drainage basin is rotatably fixed to the washing machine main body. (8) A frame with a V-shaped cross section and a filter formed on one side can be attached and detached to the drainage basin provided at the bottom of the washing chamber so that the filter is located in the washing water circulation path. The dishwasher according to any one of claims (1) to (7), characterized in that a dishwasher is provided. (9) The bottom plate of the washing chamber extends almost to the center of the drainage basin, and one end is rotatable within a predetermined range on the bottom plate of the drainage basin between the water supply port and the discharge port of the circulation system path. Claims (1) to (7) characterized in that the filter is arranged such that the other end thereof can come into contact with the end of the bottom plate of the washing chamber.
) A dishwasher as described in any of the above. (10) A water supply port for the circulation system is provided approximately in the center of the bottom plate of the drainage basin, and drainage ports connected to the second drainage basin are provided on both sides, and filters are formed on at least two sides excluding the bottom. Any one of claims (1) to (7), characterized in that the square-shaped filter frame is removably disposed with the bottom portion facing upward, with the water supply port facing inside and the drain port facing outside. Dishwasher as described. (11) Claims (1) to (1) characterized in that all or part of the second drainage basin is formed transparent or translucent.
The dishwasher according to any one of 0). (12) The dishwasher according to claim (11), characterized in that a mark for observing the water level in the washing chamber is provided in the transparent or semi-transparent part of the second drainage basin.