JP7349681B2 - Dishwasher - Google Patents

Description

FIELD OF THE INVENTION The present invention relates to a dishwasher.

Conventionally, there are known dishwashers that circulate washing water in a washing tank using a washing water pump, which is a pressurizing part, and spray the washing water from a washing nozzle to wash dishes, etc. (for example, , see Patent Document 1).
Some of these dishwashers are equipped with a drain port for draining washed water and a drain plug for blocking the drain port. This drain port is connected to a drain mechanism provided at the location where the dishwasher is installed via a drain pipe, etc., and the user, for example, removes the drain plug from the drain port after the dishwasher has finished operating for a day. This makes it possible to drain the washing water from the dishwasher to the drain mechanism.

Japanese Patent Application Publication No. 9-276200

By the way, depending on the installation location of the dishwasher, the drainage mechanism provided at the installation location may have a low wastewater treatment capacity. In such a case, when the washing water is drained after the dishwasher has finished operating for one day, the amount of water discharged exceeds the wastewater treatment capacity of the drainage mechanism, and there is a risk that the drainage mechanism may overflow.
SUMMARY OF THE INVENTION An object of the present invention is to provide a dishwasher that can adjust the amount of washing water discharged.

In order to achieve the above object, the present invention provides a cleaning tank for accommodating an object to be cleaned, a cleaning nozzle for spraying cleaning water inside the cleaning tank toward the object to be cleaned, and a cleaning tank for cleaning the object to be cleaned. a drainage section for discharging the washing water; the drainage section includes a drainage channel for discharging the washing water; and a drainage adjustment section for adjusting the amount of water discharged from the drainage channel; The drain valve includes a drain port provided in the tank, and the drain adjustment unit includes a drain plug that can be inserted into and removed from the drain port and can adjust the amount of water drained from the drain port depending on the amount of insertion into the drain port. The drain plug has a predetermined length, the drain plug is provided with a dimension adjustment part that can adjust the length of the drain plug, and the drain plug has a length that is equal to the length of the drain plug. By being adjusted by the adjustment section, the amount of insertion into the drain port is adjusted.

According to this, the drainage amount of washing water in the drainage channel is adjusted by the drainage adjustment section. Therefore, the amount of washing water discharged from the dishwasher can be adjusted depending on the wastewater treatment capacity of the drainage mechanism provided at the installation location of the dishwasher.

According to the present invention, the amount of drainage of washing water can be adjusted.

A side sectional view showing the configuration of a dishwasher according to a first embodiment of the present invention A perspective view showing the configuration of a dishwasher Exploded perspective view showing the configuration of the drain unit (A) is a perspective view showing the drain unit with the drain port closed, and (B) is a perspective view showing the drain unit with the drain port open. (A) is a side view showing the drain unit in the maximum release state, and (B) is a side view showing the drain unit in the minimum release state. A perspective view showing the configuration of a dishwasher according to a second embodiment of the present invention Perspective view showing each flow rate adjustment plate

A first invention includes a cleaning tank that accommodates an object to be cleaned, a cleaning nozzle that injects cleaning water inside the cleaning tank toward the object to be cleaned, and a drain that drains the cleaning water that has been used to wash the object. The drainage unit includes a drainage channel for discharging the wash water, and a drainage adjustment unit for adjusting the amount of water discharged from the drainage channel.

According to this, the drainage amount of the wash water flowing through the drainage channel can be adjusted by the drainage adjustment section. Therefore, the drainage adjustment section can adjust the amount of drainage from the dishwasher depending on the drainage processing capacity of the drainage mechanism at the installation location of the dishwasher and the state.

In a second aspect of the present invention, the drainage flow path includes a drainage port provided in the cleaning tank, and the drainage adjustment section is removably inserted into the drainage port, depending on the amount of insertion into the drainage port. The drain plug is provided with a drain plug that can adjust the amount of water drained from the drain port.
According to this, the drain amount of the wash water flowing through the drain channel can be adjusted by the drain plug. Therefore, the amount of water drained from the dishwasher can be adjusted without providing a separate drain pump.

In a third aspect of the invention, the drain plug has a predetermined length, the drain plug is provided with a dimension adjustment part that can adjust the length of the drain plug, and the drain plug has a predetermined length. By adjusting the size by the size adjustment section, the amount of insertion into the drain port is adjusted.
According to this, the amount of washing water drained from the drain port can be adjusted according to the length dimension of the drain plug. Therefore, the drain plug 72 can adjust the amount of washing water drained from the drain channel.

In a fourth aspect of the present invention, the drain plug is disposed inside the drain port, and is formed in a tapered shape that slopes toward the inside in the radial direction of the drain plug as it goes from the cleaning tank to the inside of the drain port. It has an outer circumferential surface.
According to this, as the amount of the drain plug inserted into the drain port from the cleaning tank increases, the amount of water drained from the drain channel decreases. Therefore, the drain plug can adjust the amount of water discharged from the drainage channel in multiple stages or steplessly.

In a fifth aspect of the invention, the drainage adjustment section includes a flow rate adjustment plate that is removably attached to the drainage channel and is provided with a flow port that is narrower than the drainage channel.
According to this, the amount of drainage of the wash water flowing through the drainage channel can be adjusted by the flow rate adjustment plate. Therefore, the amount of water drained from the dishwasher can be adjusted without providing a separate drain pump.
Embodiments of the present invention will be described below with reference to the drawings.
<First embodiment>

FIG. 1 is a side sectional view showing the structure of the dishwasher 1 according to the present embodiment, and FIG. 2 is a perspective view showing the structure of the dishwasher 1. In addition, in FIG. 2, the door 16, the lower panel 19, the wash water pump 20, the wash nozzle 32, and the rinse nozzle 34 are omitted.
As shown in FIGS. 1 and 2, the dishwasher 1 is a so-called under-counter type commercial dishwasher, and includes a housing 2 with an opening on the front surface. There is.
Inside the casing 2, a bottom plate 4 is provided that divides the internal space of the casing 2 into upper and lower parts, and in the internal space of the casing 2, the space above the bottom plate 4 functions as a "cleaning tank". A space below the cleaning tank 6 serves as a machine room 8.

The machine room 8 houses a washing water pump 20 and a rinsing water pump 22, which function as a pressurizing section. The wash water pump 20 sucks in the wash water W stored inside the wash tank 6, pressurizes it, and sends it out again to the inside of the wash tank 6, so-called pressurized circulation of the wash water W. The upper end of the cleaning water pump 20 is disposed to protrude into the cleaning tank 6 through a through hole 9 provided in the bottom plate 4.
The rinse water pump 22 is connected to a water supply pipe 23 that communicates with the outside, and pressurizes the rinse water supplied from the outside through the water supply pipe 23 and sends it to the inside of the washing tank 6.

The washing tank 6 is located above the washing tank 6 and includes an installation section 12 in which tableware, which is an example of "objects to be washed," are stored, and a mounting section 12 located below the installation section 12 that stores these tableware. It is divided into a storage section 14 in which wash water W for washing is stored.
A door 16 is provided in the opening of the housing 2 at a location corresponding to the front surface of the installation section 12 so as to be openable and closable.

A front plate 18 that closes the front surface of the storage section 14 is provided at a portion of the opening of the housing 2 that corresponds to the front surface of the storage section 14 . Furthermore, a lower panel 19 is provided in the opening of the housing 2 at a location corresponding to the front surface of the storage section 14 and the front surface of the machine room 8.
The upper end portion of the above-mentioned wash water pump 20 is arranged in the storage section 14 . A wash water pipe 30 extending upward is connected to the upper end of the wash water pump 20.

A cleaning nozzle 32 and a rinsing nozzle 34 are provided at the tip of the cleaning water pipe 30. These cleaning nozzles 32 and rinsing nozzles 34 are arranged in the installation section 12.
The cleaning nozzle 32 and the rinsing nozzle 34 are linear members extending from the tip of the cleaning water pipe 30 to both sides in the horizontal direction. It is equipped with nozzle holes 36 and 38. The cleaning nozzle 32 and the rinsing nozzle 34 are rotatably supported in a horizontal plane with the tip of the cleaning water pipe 30 as the center of rotation.
The storage section 14 is provided with a heating device 26 that heats the wash water W.

A branch pipe 39 branches off from the side of the wash water pipe 30. The branch pipe 39 branches from the wash water pipe 30 and extends inside the storage section 14 along the bottom plate 4, then bends upward, and extends along the back surface of the housing 2 inside the installation section 12. It is formed to extend upward along the rear wall 3 to be formed. Inside the installation section 12 , the branch pipe 39 that reaches the top plate 5 forming the upper surface of the housing 2 extends along the top plate 5 to a position opposite to the tip of the wash water pipe 30 . A cleaning nozzle 33 and a rinsing nozzle 35 are provided at the tip of the branch pipe 39 so as to be rotatable in a horizontal plane about the tip of the branch pipe 39 as a rotation center. That is, inside the installation section 12, a cleaning nozzle 32, a rinsing nozzle 34, a cleaning nozzle 33, and a rinsing nozzle 35 are arranged so as to face each other above and below the installation section 12.

The dishwasher 1 includes a drainage section 50 that drains the washing water W, and the drainage section 50 includes a drainage channel 52 through which the washing water W is drained, and a "drainage section 50" that adjusts the amount of water discharged from the drainage channel 52. and a drain unit 54 that functions as an adjustment section.
The drain section 50 has a circular drain port 56 that penetrates the bottom plate 4, a drain receiver 58, a drain socket 60, and a drain pipe 62.
The drain port 56 allows the storage section 14 and the machine room 8 to communicate with each other. In this embodiment, it is provided at a position close to the front plate 18 and one side wall 7 forming the side surface of the housing 2 .

The drain receiver 58 is a straight tube-shaped member arranged in the machine room 8 and connected to the drain port 56 at its upper end. It extends. This drain receiver 58 is formed integrally joined to the bottom plate 4. The inner peripheral surface of the upper end of the drain receiver 58 is formed as a tapered surface such that the inner diameter on the upper side becomes wider (FIG. 5). Note that the drain receiver 58 does not need to be provided with such a tapered surface.

A drain socket 60 is detachably attached to the lower end of the drain receiver 58. This drain socket 60 is a straight pipe-shaped member like the drain receiver 58, and the drain receiver 58 and the drain pipe 62 are connected by this drain socket 60.
The drain pipe 62 is a tubular member with one end attached to the lower end of the drain socket 60, and the drain pipe 62 extends to the outside of the dishwasher 1. The other end of the drain pipe 62 is connected to a drain mechanism provided at the location where the dishwasher 1 is installed.

FIG. 3 is an exploded perspective view of the drain unit 54.
As shown in FIG. 3, the drain unit 54 includes a drain partition plate 70 and a drain plug 72.
The drain partition plate 70 is arranged inside the cleaning tank 6 at the boundary between the installation part 12 and the storage part 14, and the drain partition plate 70 extends horizontally from the side wall 7 along the front plate 18. It is a rectangular plate member formed as follows. That is, the installation part 12 is located on the upper surface side of this drain partition plate 70, and the storage part 14 is located on the lower surface side. This drain partition plate 70 is provided with a rectangular through hole 74 approximately in the center thereof. This through hole 74 is located above the drain port 56.

On the upper surface side of the drain partition plate 70, a wall-shaped drain guide 76 having a predetermined height is provided upright around the through hole 74. The drain guide 76 is a rectangular frame when viewed from above, and the drain guide 76 is integrally formed with the drain partition plate 70.

The drain plug 72 is a member that has a predetermined length in the vertical direction and is inserted into the through hole 74 of the drain partition plate 70. The drain plug 72 has a generally cylindrical shape as a whole and includes a drain pipe 80, a drain joint 82, a handle fixing plate 90, a drain handle 100, and a drain rubber 110.
The drain pipe 80 is a tubular member having a predetermined length and open at both ends, and a drain joint 82 is provided at the upper end of the drain pipe 80.

The drain joint 82 is a plate-shaped member that is bent to form a connecting portion 84 extending in the horizontal direction and a pair of slide portions 86 extending downward by a predetermined length from both ends of the connecting portion 84. be.
The drain joint 82 is arranged so that the upper end of the drain pipe 80 is sandwiched between the lower ends of the pair of sliding parts 86, and the connecting part 84 is arranged above the upper end of the drain pipe 80. There is. The lower end portions of the pair of slide portions 86 and the upper end of the drain pipe 80 are fixed integrally.

The length of the connecting portion 84 in the radial direction of the drain plug 72 is set to be shorter than the inner diameter of the through hole 74 and the drain guide 76 . A pair of screw holes 89 are provided on the upper surface of the connecting portion 84 .
A hook portion 88 is provided at the tip of each of the slide portions 86. Each of the hooking portions 88 is formed into a claw shape that projects in the direction away from the drain pipe 80. The tip of the hooking portion 88 projects outward from the through hole 74 in the radial direction of the through hole 74 .
The drain plug 72 is arranged so that the slide portion 86 of the drain joint 82 is inserted into the through hole 74 and the drain guide 76.

A handle fixing plate 90 is provided on the upper surface of the connecting portion 84. The handle fixing plate 90 is a plate-like member that is bent so as to form a connecting portion 92 extending in the horizontal direction and a pair of fixing portions 94 rising upward from both ends of the connecting portion 92.

A pair of screw holes 96 are provided on the upper surface of the connecting portion 92 . The drain joint 82 and the handle fixing plate 90 have a pair of screw members 99 screwed into a pair of screw holes 89 provided in the drain joint 82 and a pair of screw holes 96 provided in the handle fixing plate 90. Fixed by
A screw hole 98 is provided in each side of the fixing part 94.

A drain handle 100 is provided on the upper surface of the handle fixing plate 90. The drain handle 100 includes a top plate portion 102 formed in a rectangular shape and side plate portions 104 extending downward by a predetermined length from each side of the top plate portion 102, and is formed into a lid-like member as a whole. ing.

Among the four side plate parts 104, a plurality of adjustment holes 106, each of which is a screw hole, are formed in a pair of mutually opposing side plate parts 104, which are the surfaces that come into contact with the fixing part 94 of the handle fixing plate 90 during assembly. ing. These adjustment holes 106 are all provided so as to be lined up along the vertical direction, and in this embodiment, three adjustment holes 106A, 106B, and 106C are formed in each side plate portion 104 in order from the top. There is.

The drain handle 100 and the handle fixing plate 90 are fixed by a pair of screw members 108 that are screwed into a pair of screw holes 98 and one of the pair of adjustment holes 106.
As described above, a plurality of adjustment holes 106 are arranged in the vertical direction. Therefore, by changing the adjustment hole 106 into which the screw member 108 is inserted, it is possible to adjust the vertical position of the handle fixing plate 90 supported by the drain handle 100.
This makes it possible to adjust the length L in the longitudinal direction of the drain plug 72. That is, the drain handle 100 and the handle fixing plate 90 function as a "size adjustment section" that adjusts the length L of the drain plug 72.

The drain handle 100 can cover the drain guide 76 by arranging each side plate portion 104 along each outer peripheral surface of the drain guide 76. At this time, a gap of a predetermined width is provided between the drain guide 76, the top plate part 102, and each side plate part 104.
The drain plug 72 is thus supported by the drain partition plate 70 as a whole by the drain handle 100 engaging with the drain partition plate 70 and the drain guide 76.

A drain rubber 110 is provided at the lower end of the drain pipe 80. The drain rubber 110 is a tubular member made of resin with both ends open, and extends downward.
A large diameter portion 112 is provided on the upper end side of the drain rubber 110, and a small diameter portion 114 whose outer diameter is smaller than the large diameter portion 112 is provided on the lower end side. The small diameter portion 114 is inserted into the inside of the drain receiver 58 via the drain port 56.

In the vertical direction of the drain rubber 110, a tapered portion 116 whose diameter decreases downward is provided at a location located between the large diameter portion 112 and the small diameter portion 114. The tapered portion 116 has an outer circumferential surface tapered inward in the radial direction when viewed in cross section in the vertical direction. Further, the tapered portion 116 is formed so that the outer diameter near the upper end is approximately the same as the inner diameter of the drain port 56 .

FIG. 4(A) is a perspective view showing the drain unit 54 in a closed state, and FIG. 4(B) is a perspective view showing the drain unit 54 in an open state.
As shown in FIG. 4A, the central axis of the drain plug 72 in the radial direction coincides with the central axis of the drain port 56 and the drain receiver 58 in the radial direction. Hereinafter, this central axis will be referred to as axis S. When the drain handle 100 is arranged to cover the drain guide 76, the tapered portion 116 of the drain rubber 110 fits into the drain port 56 from above and closes the drain port 56. This allows the drain unit 54 to close off the drainage channel 52.
As described above, the drain pipe 80 and the drain rubber 110 are both tubular members with both ends open. That is, the drain unit 54 communicates the storage section 14 and the drainage channel 52 via the drain pipe 80 and the drain rubber 110.
Note that the length L of the drain plug 72 of this embodiment is such that even when the handle fixing plate 90 is fixed at the adjustment hole 106A located at the top, the drain plug 72 in the state shown in FIG. The dimensions are such that the mouth 56 can be closed.

When the drain handle 100 is pulled up by the user, the slide portion 86 is guided by the drain guide 76 and moves upward along the axis S, and the entire drain plug 72 is accordingly pulled upward. As a result, the upper end of the tapered portion 116 comes out of the drain port 56, and a gap G is created between the side surface of the drain rubber 110 and the drain port 56. This allows the drain unit 54 to open the drain flow path 52.

When the drain handle 100 is rotated approximately 45 degrees in a horizontal plane from the raised position, the lower end of each side plate portion 104 comes into contact with the upper edge of the drain guide 76 . Thereby, as shown in FIG. 4(B), it is possible to maintain the drain unit 54 in an open state in which the drainage channel 52 is opened.
Note that in this open state, the small diameter portion 114 is located inside the drain port 56 and the drain receiver 58.

As described above, since the latch part 88 is provided at the lower end of the slide part 86, this latch part 88 comes into contact with the lower surface of the drain partition plate 70, so that the drain handle 100 is moved from the position in the released state. The upward movement is suppressed (Fig. 5). This prevents the drain plug 72 from slipping out from the drain partition plate 70. Further, the small diameter portion 114 is prevented from coming out of the drain port 56 and the drain receiver 58.

Next, the operation of this embodiment will be explained.
First, the operation of the dishwasher 1 will be explained.
In the dishwasher 1, after tableware supported by a basket or the like is placed in the installation section 12 and the door 16 is closed, the following washing operation is started.
First, the wash water pump 20 is activated, and the wash water W stored in the storage section 14 is taken into the wash water pump 20 . The taken in cleaning water W is pressurized by the cleaning water pump 20 and sent to the cleaning nozzle 32 via the cleaning water piping 30 and the branch piping 39. The washing water W sent to the washing nozzle 32 is ejected from the ejection hole 36 of the rotating washing nozzle 32 toward the dishes to be washed and various components of the dishwasher 1 in the installation section 12. The wash water W that has washed the tableware and various parts of the dishwasher 1 in the installation section 12 flows into the storage section 14 again, and then is taken into the wash water pump 20, and thereafter circulates in the same manner.

After cleaning for a predetermined period of time, the cleaning water pump 20 stops, and the cleaning operation ends. After this, the rinsing operation begins.
In the rinsing operation, the rinsing water pump 22 is activated to draw in external rinsing water. The captured rinse water is sent to the rinse nozzle 34. The rinsing water sent to the rinsing nozzle 34 is ejected from the ejection hole 38 of the rotating rinsing nozzle 34 toward tableware and various components of the dishwasher 1 in the installation section 12. Rinsing water used to rinse tableware and various components of the dishwasher 1 in the installation section 12 flows into the storage section 14 and is stored therein.

The water level of the wash water W stored in the storage section 14 rises due to the inflow of the rinse water. As described above, the drain pipe 80 and the drain rubber 110 of the drain unit 54 communicate the storage section 14 and the drainage channel 52. The cleaning water W that has reached the upper end of the drain pipe 80 flows into the interior of the drain pipe 80 from the upper end of the drain pipe 80 . The wash water W that has flowed into the drain pipe 80 is drained into the drain channel 52 via the drain rubber 110.
That is, the drain unit 54 functions as an overflow pipe that prevents the wash water W from overflowing from the storage section 14 and entering the installation section 12 .

After the rinsing operation for a predetermined period of time, the rinsing water pump 22 is stopped and washing of the dishes is completed. Then, the operation of the dishwasher 1 ends.
The drain unit 54 is arranged in a closed state when the dishwasher 1 is in operation, and is arranged in an open state when the dishwasher 1 has finished its daily operation, thereby draining the reservoir of the dishwasher 1. Washing water W is drained from the section 14.

FIG. 5(A) is a side view showing the drain unit 54 in the maximum release state, and FIG. 5(B) is a side view showing the drain unit 54 in the minimum release state. In FIGS. 5A and 5B, the drain receiver 58 and the portion of the drain rubber 110 located inside the drain receiver 58 are shown in vertical cross section.
After the washing operation of the dishwasher 1 is finished, the drain plug 72 is pulled up and the drain unit 54 is released, thereby opening the drain port 56 and allowing washing water to flow from the drain port 56 into the drain channel 52. W is drained.

As described above, the length L of the drain plug 72 in the longitudinal direction can be adjusted along the axis S by adjusting the vertical position of the handle fixing plate 90 supported by the drain handle 100. It is now possible to do so.
When the drain unit 54 is in the open state, the drain handle 100 provided at the upper end of the drain plug 72 is supported by the drain guide 76. Therefore, when the length L of the drain plug 72 is adjusted, the position of the drain rubber 110 located at the lower end of the drain plug 72 in the released state changes up and down.

As a result, the position of the tapered surface of the drain rubber 110 relative to the drain port 56 changes in the vertical direction, and the width dimension of the distance G between the drain port 56 and the drain rubber 110 changes.
That is, by adjusting the length dimension L of the drain plug 72, the amount of water drained from the drain port 56 can be adjusted.

For example, as shown in FIG. 5A, when the handle fixing plate 90 is fixed at the adjustment hole 106A located at the top, the length of the drain plug 72 is L1. In this case, when the drain unit 54 is in the open state, most of the tapered portion 116 of the drain rubber 110 is located above the drain port 56. Therefore, the distance G1 between the drain port 56 and the drain rubber 110 is approximately the same as the distance between the drain port 56 and the outer peripheral surface of the small diameter portion 114.

On the other hand, as shown in FIG. 5(B), when the handle fixing plate 90 is fixed at the adjustment hole 106C located at the bottom, the length dimension of the drain plug 72 is L2, which is longer than L1. It has become.
When the drain unit 54 is in the open state, most of the tapered portion 116 of the drain rubber 110 is located below the drain port 56. That is, most of the tapered portion 116 is arranged inside the drain port 56 and the drain receiver 58.
Therefore, the distance G2 between the drain port 56 and the drain rubber 110 is approximately the same as the distance between the drain port 56 and the outer peripheral surface located at the top of the tapered portion 116, and the width dimension of the distance G2 is the same as the distance G1. It is narrower than the width dimension of .

As a result, when the drain unit 54 is in the released state, when the handle fixing plate 90 is fixed at the adjustment hole 106C located at the bottom, the handle fixing plate 90 is fixed at the adjustment hole 106A located at the top. The flow rate of the wash water W flowing into the drain flow path 52 is restricted by the drain plug 72 and becomes smaller than in the case.
That is, as the length L of the drain plug 72 becomes longer, the width of the interval G becomes narrower, and the flow rate of the wash water W flowing into the drain flow path 52 becomes smaller.

In this manner, by changing the position of the adjustment hole 106 into which the screw member 108 is inserted, the amount of insertion of the drain rubber 110 into the drain port 56 when the drain unit 54 is in the open state can be adjusted.
Thereby, the drainage unit 50 can adjust the amount of water discharged from the drainage channel 52 when the drain port 56 is opened. Therefore, the amount of water drained from the dishwasher 1 can be adjusted depending on the drainage capacity and condition of the drainage mechanism provided at the location where the dishwasher 1 is installed, and the amount of water drained from the dishwasher 1 flows into the water. By doing so, it is possible to suppress the occurrence of water overflow or backflow in an interceptor such as a grease trap.

Further, since the amount of water drained from the dishwasher 1 can be adjusted without separately providing a drain pump, it is possible to maintain durability and suppress increases in costs such as maintenance and management.
Although it is assumed that the position of the adjustment hole 106 into which the screw member 108 is inserted is changed by the installation operator when installing the dishwasher 1, the present invention is not limited to this. Depending on the condition of the drainage mechanism at the installation location, the user or maintenance worker may perform this.

As described above, according to the present embodiment, the dishwasher 1 includes a washing tank 6 that accommodates items to be washed such as tableware, and a washing water tank 6 that circulates the washing water W inside the washing tank 6 under pressure. It includes a pump 20, a washing nozzle 32 that sprays wash water W pressurized by the wash water pump 20 toward tableware, etc., and a drain section 50 that drains the wash water W used to wash the tableware and the like. . The drainage section 50 is configured to include a drain unit 54 that can adjust the amount of drainage from the drainage channel 52 that drains the wash water W.

Thereby, the amount of water drained from the dishwasher 1 can be adjusted depending on the state of the drainage mechanism provided at the location where the dishwasher 1 is installed. Therefore, the drainage of the washing water W from the dishwasher 1 flows in, thereby suppressing the occurrence of water overflow in a drainage mechanism provided at the installation location of the dishwasher 1, for example, a blocker such as a grease trap.

Further, according to the present embodiment, the drain channel 52 includes a drain port 56 provided in the cleaning tank 6, and the drain unit 54 is removably inserted into the drain port 56. The structure includes a drain plug 72 that can adjust the drainage of the drain port 56 according to the amount of insertion. As a result, the amount of water drained from the dishwasher 1 can be adjusted without the need for a separate drainage pump, thereby maintaining the durability of the dishwasher 1 and suppressing increases in maintenance and management costs. I can do it.

Further, according to the present embodiment, the drain plug 72 is provided so that the length L of the drain plug 72 can be adjusted. The structure is such that the amount of insertion into the inside of the body can be adjusted. Accordingly, by adjusting the length L of the drain plug 72, the amount of water discharged from the drain port 56 can be adjusted, and therefore the amount of water discharged from the drainage channel 52 can be easily adjusted.

Further, according to the present embodiment, the drain plug 72 has an outer peripheral surface formed in a tapered shape that slopes radially inward from the inside of the cleaning tank 6 toward the inside of the drain port 56. The drain rubber 110 is provided with a drain rubber 110. Thereby, by adjusting the vertical position of the drain rubber 110 provided in the drain plug 72, the amount of water drained from the drain port 56 can be adjusted. Therefore, the drain plug 72 can adjust the amount of water drained from the drain channel 52 in multiple stages or steplessly.

<Second embodiment>
Next, a second embodiment of the present invention will be described.
FIG. 6 is a perspective view showing the configuration of a dishwasher 200 according to the second embodiment of the present invention, and FIG. 7 is a perspective view showing each flow rate adjustment plate 210.
In FIG. 6, the same parts as in FIGS. 1 and 2 are designated by the same reference numerals, and the description thereof will be omitted. Further, in FIG. 6, the lower panel 19 and the wash water pump 20 are omitted.
In this embodiment, the drain flow path 252 of the dishwasher 200 includes a removable flow control plate 210. Note that the drain handle 100 of this embodiment includes only a pair of adjustment holes 106. Therefore, in the drain plug 72 of this embodiment, the vertical position of each part located below the handle fixing plate 90 cannot be adjusted and remains constant at all times.

The flow rate adjustment plate 210 is a disc-shaped member having an outer diameter that is approximately the same as the inner diameter of the drain receiver 58 . This flow rate adjustment plate 210 is provided with a communication hole 212, which is a through hole, in the center. Washing water W flowing in from the drain port 56 flows into the drain pipe 62 through the flow hole 212.

In this embodiment, in the drainage channel 252, the flow hole 212 of the flow rate adjustment plate 210 provided inside the drain receiver 58 is the flow port having the smallest diameter. Therefore, the amount of water discharged through the drainage channel 252 is limited by the flow rate regulating plate 210.

As described above, the drain socket 60 and the flow rate adjustment plate 210 are provided to be detachable from the drain receiver 58. That is, the flow rate adjustment plate 210 is easy to replace.
Therefore, by preparing a plurality of flow rate adjustment plates 210 each having a flow hole 212 having a different hole diameter and replacing them, the amount of water discharged through the drain flow path 252 can be adjusted. That is, the flow rate adjustment plate 210 functions as a "drainage adjustment section" that adjusts the amount of drainage in the drainage channel 252.

Specifically, as shown in FIG. 7, a plurality of flow rate adjustment plates 210A to 210D each having communication holes 212A to 212D with different hole diameters are prepared. Then, depending on the drainage capacity of the drainage mechanism at the installation location of the dishwasher 200 and the condition, the installation operator adjusts the amount of drainage in the drainage channel 252 by attaching one of the flow rate adjustment plates 210A to 210D. be able to.

As described above, according to the present embodiment, the drainage section 50 is a flow rate adjustment plate that is removably provided in the drainage channel 252 and is provided with a flow hole 212 that is a narrower flow port than the drainage channel 252. 210.
Thereby, the dishwasher 1 can adjust the amount of water discharged from the drainage channel 252 using the flow rate adjustment plate 210.
Therefore, the amount of drainage of the washing water W from the dishwasher 1 can be adjusted without providing a separate drainage pump, which helps maintain the durability of the dishwasher 200 and suppresses increases in costs such as maintenance and management. I can do it.

Note that the embodiment described above is merely an example of one aspect of the present invention, and can be arbitrarily modified and applied within the scope of the gist of the present invention.

For example, in the embodiment described above, the drain handle 100 is provided with a plurality of adjustment holes 106. However, the present invention is not limited to this, and by providing a pair of elongated holes extending in the vertical direction in the drain handle 100 and inserting the screw members 108 into these elongated holes, the fixing position of the handle fixing plate 90 can be adjusted steplessly. You may.

Further, for example, in the above-described embodiment, the dishwasher is of an under-counter type, but the dishwasher is not limited thereto, and may be a dishwasher of other types such as a door type or a hood type.

Further, the flow rate adjustment plate 210 is provided in the dishwasher 1 which is equipped with a plurality of adjustment holes 106 and a drain plug 72 that can adjust the vertical position of each part located below the handle fixing plate 90. Good too.

As described above, the dishwasher according to the present invention is provided with a drainage adjustment section that changes the opening degree of the drainage channel that drains the washing water, thereby adjusting the amount of washing water drained without separately providing a drainage pump. It can be suitably used in a dishwasher.

1,200 Dishwasher 6 Washing tank (washing tank)
12 Installation part 14 Storage part 20 Washing water pump (pressurizing part)
32 Cleaning nozzle 50 Drain section 52, 252 Drain channel 54 Drain unit (drain adjustment section)
56 Drain port 72 Drain plug 90 Handle fixing plate (dimension adjustment part)
100 Drain handle (dimension adjustment part)
106, 106A, 106B, 106C Adjustment hole 110 Drain rubber 116 Tapered part 210, 210A, 210B, 210C, 210D Flow rate adjustment plate 212, 212A, 212B, 212C, 212D Distribution hole (flow port)
G, G1, G2 Spacing L, L1, L2 Length W Cleaning water

Claims (3)

a cleaning tank that accommodates objects to be cleaned;
a cleaning nozzle that sprays cleaning water inside the cleaning tank toward the object to be cleaned;
and a drainage section for draining the washing water used to wash the object to be washed,
The drainage section includes a drainage channel that drains the wash water, and a drainage adjustment section that adjusts the amount of drainage in the drainage channel ,
The drainage flow path includes a drainage port provided in the cleaning tank,
The drainage adjustment unit includes a drain plug that can be inserted into and removed from the drainage port and that can adjust the amount of drainage from the drainage port depending on the amount of insertion into the drainage port,
The drain plug has a predetermined length,
The drain plug is provided with a dimension adjustment part that can adjust the length of the drain plug,
The length of the drain plug is adjusted by the dimension adjustment section, so that the amount of insertion into the drain port is adjusted.
Dishwasher. The drain plug is disposed inside the drain port, and includes an outer circumferential surface formed in a tapered shape that slopes toward the inside of the drain plug in the radial direction from the cleaning tank toward the inside of the drain port. There is
A dishwasher according to claim 1 . a cleaning tank that accommodates objects to be cleaned;
a cleaning nozzle that sprays cleaning water inside the cleaning tank toward the object to be cleaned;
and a drainage section for draining the washing water used to wash the object to be washed,
The drainage section includes a drainage channel that drains the wash water, and a drainage adjustment section that adjusts the amount of drainage in the drainage channel ,
The drainage adjustment section includes a flow rate adjustment plate that is removably attached to the drainage channel and is provided with a flow port that is narrower than the drainage channel.
Dishwasher.

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