TWM560280U - A dish washing machine having a detachable water tank - Google Patents

Abstract

A dish washing machine having a detachable water tank is provided. The dish washing machine includes a machine body and an inner cleaning chamber is provided inside the machine body. A circulating water flume is arranged at the bottom of the inner cleaning chamber. The dish washing machine further includes a water tank. A bearing platform is arranged at a lower end of the rear portion of the machine body, the bearing platform is provided with a water inlet, the bottom of the water tank is provided with a water outlet, the water tank is detachably installed on the bearing platform, and the water inlet and the water outlet are abutted and in communication with each other. The water tank which is detachably communicated with the bearing platform at the lower end of the machine body is arranged at a rear side of the machine body. On one hand, cleaning water in the water tank is supplied to an inside of the inner cleaning chamber via the water inlet on the bearing platform, thereby preventing the problem that a water inlet pipe has to be installed at a water faucet to supply water, simplifying the operations and facilitating moving the machine; on the other hand, the water tank and the bearing platform have a stable and reliable installation manner and are convenient to be disassembled. Furthermore, the water tank is installed at the rear side of the machine body and a cleaning space at a front portion is not affected, and the whole appearance has a good visual effect.

Description

Dishwasher with detachable water tank

The present invention generally relates to a kitchen appliance, and in particular to a dishwasher.

In today's society, dishwashers have become an indispensable kitchen appliance for the family. Young people in modern society are unwilling to spend too much time cleaning dishes because of their fast pace of life, which causes dirty dishes to accumulate and become troubles in their lives. Since conventional dishwashers require relatively large installation space, plumbers are also required to install separate water supply pipes, making such dishwashers unsuitable for installation in temporarily rented apartments, and when the dishwasher is moving It will become cumbersome and it will be troublesome to disassemble when moving. Therefore, the conventional dishwasher cannot solve the problem of dishwashing of such people.

To this end, there is a need for a dishwasher that can solve the above-mentioned problems of complicated water supply methods and inconvenient transfer.

In order to solve the deficiencies of the prior art, the present invention provides a dishwasher having a detachable water tank to solve the above problems in the prior art.

Specifically, the present invention provides a dishwasher having a detachable water tank, including a body, the inside of the body is provided with a cleaning tank, a bottom of the cleaning tank is provided with a circulation tank, and the dishwasher further includes a water tank. The lower side of the rear part of the body is provided with a carrying platform, and the water receiving port is provided on the carrying platform, and the bottom of the water tank is provided There is a water outlet, the water tank is detachably mounted to the carrying platform, and the water inlet is connected to the water outlet.

Further, the utility model further comprises a spray arm and a circulation pump, wherein the spray arm is arranged at a middle portion of the bottom wall of the cleaning tank, and the water pump sucks the water in the circulation tank to the spray arm, the volume of the circulation tank The volume ratio of the liquid contained in the cleaning tank is 1/4 to 3/4.

Further, the volume of the circulation tank is 0.8L to 2L, and the communication port of the circulation pump and the circulation tank is located at a lower portion of the circulation tank.

Further, the volume of the water tank is 2 to 6 times the volume of the liquid contained in the cleaning tank.

Further, the water inlet of the carrying platform is connected to the circulation water tank through a pipeline, and the highest water level of the water tank is higher than the top of the circulation water tank.

Further, the lowest water level of the water tank is lower than the bottom of the circulation water tank, and a water pump is disposed between the circulation water tank and the water inlet.

Further, a peripheral edge of the loading platform is upwardly convex to form a first stopping portion, and a bottom periphery of the water tank is downwardly convex to form a second stopping portion that cooperates with the first stopping portion.

Further, a front surface of the rear side wall of the air body is provided with a first positioning step or a first inclined surface, and a second positioning step or a second portion of the side wall of the water tank is matched with the first positioning step or the first inclined surface. Beveled.

Further, the top of the body is provided with a positioning mounting groove, the contour of the positioning mounting groove is adapted to the contour of the upper portion of the water tank, and/or the positioning mounting groove and the upper portion of the water tank are respectively provided with matching positioning protrusions. Lift and position the groove.

Further, at least a portion of the water tank is formed as a transparent member from bottom to top to display the water level in the water tank.

The beneficial effects of the new model:

1. A water tank that is detachably connected to the lower side of the machine body is disposed on the rear side of the body. On the one hand, the cleaning water in the water tank is supplied to the inside of the cleaning tank through the water inlet on the carrying platform, thereby avoiding the necessity of water supply. The problem of installing the water pipe from the water pipe is simple and easy to move. On the other hand, the installation method of the water tank and the load platform is stable and reliable, and easy to disassemble; in addition, the water tank is installed on the rear side of the machine body without affecting the front part of the body. Clean the space while the overall shape is better.

2. The spray arm and the loop pump are further included. The spray arm is disposed at the middle of the bottom wall of the cleaning tank, and the water pump sucks the water in the water tank to the spray arm, and the volume of the circulation tank is The volume ratio of the liquid contained in the cleaning tank is 1/4 to 3/4. The water tank provides all the cleaning water required for a single cleaning program through the water inlet on the loading platform. The cleaning water flows under gravity to the bottom of the cleaning tank and enters the circulation tank through the circulation pump. Suction, continuously supplied to the spray arm to perform multiple spray washings of the items to be cleaned (eg, tableware, fruit, etc.) in a single wash cycle, therefore, cleaning the liquid in the liner includes washing the items in the wash chamber The part to be sucked in the circulation tank, and the part in the water path of the circulation pump and the spray arm. The volume of the circulation tank is not less than 1/4 of the total volume of the liquid contained in the cleaning tank, because the upper opening of the circulation tank is provided with a filtering structure, if the volume of the circulation tank is smaller than the total volume of the liquid contained in the cleaning tank 1 /4, the water on the filter structure is more, it is difficult to filter and enter the loop water tank, affecting the entire loop effect; on the other hand, the volume of the loop water tank does not exceed 3/4 of the total volume of liquid contained in the cleaning tank. This can make the loop water tank not occupy too much space under the premise of providing sufficient loop cleaning water, so the space of the cleaning chamber can be more used to accommodate the items to be cleaned, improve the cleaning ability, and have enough back. The ring cleaning water is supplied to the loop pump to prevent the problem that the cleaning effect is not good due to the suction of the loop pump and the failure of the spray arm to be flushed normally. Specifically, the volume of the circulation tank is 0.8L to 2L, and the communication port of the circulation pump and the circulation tank is located at a lower portion of the circulation tank. To provide sufficient loop water for the amount of household dishwasher cleaning, and to prevent the suction of the loop pump due to the high communication port.

3. The volume of the water tank is 2 to 6 times the volume of the liquid contained in the cleaning tank. According to the number of times of tableware/fruit and vegetable cleaning program, at least enough washing water should be contained in the water tank to provide several times of cleaning water for the cleaning tank in the whole cleaning program; at the same time, the volume of the water tank affects the volume of the whole water tank and even the dishwasher. If the volume is too large, the volume of the whole machine is large, it is inconvenient to place, and if the washing water is not used, it will stay in the water tank for a long time. If more bacteria are accumulated in one day, the user will be dumped, which causes a lot of waste.

4. The water inlet of the carrying platform is connected to the circulation tank through a pipeline, and the highest water level of the water tank is higher than the top of the circulation tank. The water tank supplies water directly to the circulation tank. The highest water level of the water tank is higher than the top of the circulation tank, which can provide a higher water pressure, so that the water flows smoothly to the circulation tank. Further, the lowest water level of the water tank is lower than the bottom of the circulation water tank, and a water pump is disposed between the circulation water tank and the water inlet. Thereby the water in the water tank is quickly pumped to the circulation tank.

5. The peripheral edge of the carrying platform is upwardly convex to form a first stopping portion, and a bottom periphery of the water tank is downwardly convex to form a second stopping portion that cooperates with the first stopping portion. Thereby, the stability against the cooperation of the bottom of the water tank with the carrying platform is enhanced.

6. The exterior of the rear side wall of the body is provided with a first positioning step or a first inclined surface, and the second side of the side wall of the water tank is provided with a second positioning step or a second inclined surface that cooperates with the first positioning step or the first inclined surface. . Firstly, the water tank is arranged on the outer side of the body, which is convenient for disassembly and assembly. The positioning structure of the body and the water tank are exposed on the outside of the body/water tank for observation and positioning operation. Secondly, the step/bevel is set correspondingly on the outside of the body and the side wall of the tank. Align the corresponding parts, at the same time The step has a certain supporting effect on the water tank, further increasing the stability of the assembly.

7. The top of the body is provided with a positioning mounting groove, the contour of the positioning mounting groove is adapted to the contour of the upper portion of the water tank, and/or the positioning mounting groove and the upper portion of the water tank are respectively provided with matching positioning protrusions. And positioning the groove. The positioning and mounting structure on the top of the body cooperates with the side wall and the lower positioning structure to further enhance the stability of the assembly and prevent the water tank from falling.

8. At least a portion of the water tank is formed as a transparent member from bottom to top to indicate the water level in the water tank.

Other features and advantages of the invention will be set forth in the description which follows, and The objectives and other advantages of the invention are realized and attained by the structure particularly pointed in

1‧‧‧ body

11,11',11"‧‧‧bearing station

111,111',111"‧‧‧ Inlet

112‧‧‧First stop

12‧‧‧back side wall

121‧‧‧First positioning step

122‧‧‧First slope

123‧‧‧ positioning recess

13‧‧‧ Positioning slot

131‧‧‧Positioning bulges

2, 2', 2" ‧ ‧ water tank

21‧‧‧Water outlet

22‧‧‧ cover

23‧‧‧Water inlet

24‧‧‧Second positioning steps

25‧‧‧Second slope

26‧‧‧ positioning convex

27‧‧‧Second stop

28‧‧‧ positioning groove

29‧‧‧Hand hole

3,3"‧‧‧cleaning liner

4,4"‧‧‧ spray arm

5,5'‧‧‧Circle Sink

6',6"‧‧‧ pump

71‧‧‧Flat screen

72‧‧‧Strainer

73‧‧‧ fine filter

The accompanying drawings are used to provide a further understanding of the present invention, and are intended to be a part of the specification, and are used to explain the technical solutions of the present invention together with the embodiments of the present application.

1 is a perspective view of the dishwasher of the first embodiment of the present invention; FIG. 2 is a perspective view of the body of the dishwasher of FIG. 1; and FIG. 3 is a perspective view of the water tank of the dishwasher of FIG. 1; 1 is a perspective view showing the washing liner of the dishwasher of FIG. 1; FIG. 5 is an exploded perspective view showing the lower structure of the dishwasher liner of FIG. 1. FIG. 6 is a cross-sectional view of the dishwasher of the second embodiment of the present invention. Figure 7 is a cross-sectional view of the dishwasher of Embodiment 3 of the present invention.

LIST OF REFERENCE NUMERALS 1 - body, 11, 11 ', 11" - carrying platform, 111, 111 ', 111" - water inlet, 112 - first stop, 12 - rear side wall, 121 - first positioning step, 122-first bevel, 123-positioning recess, 13-positioning mounting groove, 131-positioning projection; 2, 2', 2" - water tank, 21 - water outlet, 22-cover, 23 - water inlet, 24- Two positioning steps, 25-second inclined surface, 26-positioning convex part, 27-second blocking part, 28-positioning groove, 29-handle hole; 3, 3"-cleaning liner; 4, 4"- Spray arm; 5, 5'-loop tank; 6', 6"-pump; 71-plane filter, 72-strainer, 73-fine filter.

The technical solutions in the present invention are clearly and completely described in the following with reference to the accompanying drawings in the present embodiments. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.

The specific embodiments of the present invention are described in detail in the following structural drawings to more clearly illustrate the technical solutions of the present invention.

Example 1

As shown in FIG. 1-5, the first embodiment of the present invention provides a dishwasher having a detachable water tank 2, including a body 1. The inside of the body 1 is provided with a cleaning tank 3, and the bottom of the cleaning tank 3 is provided. The water tank 2 is further provided with a water tank 2, and a lower side of the rear portion of the body 1 is provided with a loading platform 11 on which a water inlet 111 is provided, and a water outlet 21 is provided at the bottom of the water tank 2, and the water tank 2 is detachable. The water inlet 111 and the water outlet 21 are connected to each other. A water tank 2 detachably connected to the carrying platform 11 on the lower side of the body 1 is disposed on the rear side of the body 1, and the washing water in the water tank 2 is transmitted through the carrying platform 11 on the one hand. The upper water inlet 111 is supplied to the inside of the cleaning tank 3, avoiding the problem that the water supply must install the water supply pipe from the water pipe, the operation is simple, and the transfer is convenient; on the other hand, the installation mode of the water tank 2 and the load platform 11 is stable and reliable. Moreover, the water tank 2 is installed on the rear side of the body 1, and does not affect the front cleaning space of the body 1, and the overall shape has a better visual effect.

Specifically, as shown in FIG. 2-3, the water tank 2 has a flat structure extending in a vertical direction, and the water outlet 21 protrudes from the bottom surface of the water tank 2, and a lower end of the rear side of the body 1 forms a receiving platform 11 which is closely attached. In the embodiment, the receiving platform 11 is a level plane, which provides a balanced supporting force to the bottom surface of the water tank 2 and is convenient for processing; in other embodiments, the receiving platform 11 can also be disposed. It is inclined, convex or concave in the middle to form a better positioning fit with the bottom surface of the water tank 2. Wherein, the water inlet 111 on the receiving platform 11 is tapered from the outer and inner diameters, and the hole end is provided with a central positioning rib. The water outlet 21 is tapered to match the water inlet 111, and the side wall of the water outlet 21 There is a central limit rib that fits the center locating rib.

Preferably, the water inlet end of the water tank 2 is a water inlet 23 with a lid 22 at the top of the water tank 2, and the lid 22 can be opened to water the water tank through the water inlet 23, and the cover 22 can avoid foreign matter from the outside, Dust and the like fall into the water tank 2 to ensure the cleanliness of the washing water, and more preferably, the cover 22 is provided with a venting hole 221, on the one hand, the pressure inside the water tank 2 is stabilized, and the water supply is ensured smoothly and smoothly. The steam in the water tank 2 is discharged.

Preferably, the outer side of the rear side wall 12 of the body 1 is provided with a first positioning step 121 and a first inclined surface 122. The outer side of the side wall of the water tank 2 is provided with the first positioning step 121 and the first inclined surface 122. The second positioning step 24 and the second inclined surface 25. Firstly, the water tank 2 is disposed on the outer side of the body 1, which is convenient for disassembly and assembly. The positioning structures of the body 1 and the water tank 2 are exposed on the outside of the body 1/water tank 2 for observation and positioning operations; secondly, outside the body 1 and the side wall of the water tank 2 Correspondingly set the step/bevel, The first positioning step 121 has a better supporting effect on the water tank 2 through the supporting cooperation with the second positioning step 24, and at the same time, the first inclined surface 122 and the second inclined surface 25 are disposed, and the inclination of the two moves the second positioning step 24 toward the first A positioning step 121 is pressed to further increase the stability of the assembly.

Further, the rear side wall 12 of the body 1 is further provided with a positioning concave portion 123 extending in the vertical direction. Correspondingly, the outer side wall of the water tank 2 is provided with a positioning convex portion 26 that cooperates with the positioning concave portion 123, the vertical direction. The extended positioning recess 123 and the positioning projection 26 can effectively prevent the water tank 2 from swaying to both sides, so that the assembly is more stable. In other embodiments, the shape, number, and orientation of the positioning recess and the positioning protrusion may be changed according to actual conditions.

Further, the periphery of the loading platform 11 is upwardly convex to form a first stopping portion 112, and the bottom periphery of the water tank 2 is downwardly convex to form a second stopping portion 27 that cooperates with the first stopping portion 112. . Thereby, the stability of preventing the bottom of the water tank 2 from being engaged with the stage 11 is enhanced. Specifically, as shown in FIG. 2-3, in the embodiment, the first stopping portion 112 is a half ring rib disposed on the free circumference of the carrying platform 11, and the half ring rib and the rear side wall of the body 1. 12 together form a sunken recess, two U-shaped ribs extending downward from the bottom of the water tank 2 form the second stop portion 27, and the second stop portion 27 is mounted to the first block The inside of the stop portion 112, and the contours of the two are fitted.

Further, as shown in FIG. 2-3, the top of the body 1 is provided with a positioning mounting slot 13, the contour of the positioning mounting slot 13 is adapted to the contour of the upper portion of the water tank 2, and the positioning mounting slot 13 is The upper portions of the water tank 2 are respectively provided with matching projections 131 and positioning grooves 28. The positioning and mounting structure at the top of the body 1 cooperates with the positioning structure of the side wall and the lower portion to further enhance the stability of the assembly and prevent the water tank 2 from falling. Specifically, in the embodiment, the contours of the positioning mounting groove 13 and the upper portion of the water tank 2 are both semi-arc-shaped, and after the water tank 2 is installed in position, the top of the water tank 2 is flush with the top of the body 1, so that the entire external structure Simple, more space-saving. In other embodiments, It is possible to set only the positioning mounting groove that is adapted to the upper contour of the water tank, or only the top positioning projection/groove. To simplify the structure.

Further, the water tank 2 is formed as a transparent member to display the water level in the water tank. It may for example be made of a transparent plastic part. In other embodiments, the water tank includes at least a portion of a transparent member formed from bottom to top to indicate the water level within the water tank. Preferably, the outer side wall of the water tank 2 is provided with a concave handle hole 29. Easy to disassemble and lift. The handle hole 29 is preferably provided in the upper middle portion of the water tank 2 to be ergonomic in terms of ease of operation and comfort.

Further, FIG. 4 shows the structure inside the washing tank 3 after the door of the dishwasher is opened, the dishwasher further includes a spray arm 4 and a loop pump (not shown), sprayed The arm 4 is disposed in the middle of the bottom wall of the cleaning tank 3, and the water in the circulation pump suction tank 5 is supplied to the spray arm 4, the volume of the circulation tank 5 and the volume of the liquid contained in the cleaning tank 3. The ratio is 1/4 to 3/4. Specifically, as shown in FIG. 5, the circulation tank 5 is provided with a filtering structure including a flat screen 71, a strainer 72 and a fine filter 73, wherein the fine filter 73 is sleeved with the outer side of the lower portion of the strainer 72, and is thin. The filter 73 is fitted into the mounting hole of the flat screen 71 together with the strainer 72 and fixed to the flat screen 71. The filtering structure covers the upper opening of the circulation water tank 5, and is capable of filtering the food residue in the washing water and allowing the filtered clean washing water to enter the circulation water tank 5. The water tank 2 supplies all the washing water required for a single cleaning program to the cleaning tank 3 through the water inlet 111 on the carrying platform 11, and the washing water flows to the bottom of the cleaning tank 3 under gravity and enters the circulation tank 5 , through the suction of the loop pump, continuously supplied to the spray arm 4 to perform multiple spray washings on the items to be cleaned (for example, tableware, fruit, etc.) in a single cleaning cycle, thereby cleaning the liquid in the inner tank 3 A portion of the article being washed in the cleaning chamber, a portion to be suctioned in the circulation tank 5, and a portion in the water path of the circulation pump and the spray arm 4 are included. The volume of the circulation tank 5 is not less than 1/4 of the total volume of the liquid contained in the cleaning tank 3. Therefore, it is ensured that there is enough circulation cleaning water to supply to the circulation pump, preventing the problem that the circulation pump suctions and the spray arm 4 cannot be flushed normally, and the cleaning effect is not good; on the other hand, the volume of the circulation tank 5 It does not exceed 3/4 of the total volume of liquid contained in the cleaning tank 3, which enables the loop water tank 5 to occupy no more space under the premise of providing sufficient loop cleaning water, so that the space of the cleaning chamber can be more It is used to hold the items to be cleaned and improve the cleaning ability. Preferably, the volume ratio of the circulation tank 5 to the liquid contained in the cleaning tank 3 is 1/2 to 2/3. More specifically, the volume of the circulation tank 5 is 0.8 L to 2 L, and the communication port of the circulation pump and the circulation tank 5 is located at the lower portion of the circulation tank 5. To provide enough loop water for the amount of household dishwasher cleaning. In this embodiment, the volume of the circulation tank is 1.5L.

Preferably, the volume of the water tank 2 is 2 to 6 times the volume of the liquid contained in the cleaning tank 3. According to the number of times of the tableware/fruit and vegetable cleaning program, at least enough washing water should be contained in the water tank 2 to provide several times of cleaning water for the cleaning tank 3 in the entire cleaning program; at the same time, the volume of the water tank 2 affects the entire water tank 2 and even washes The volume of the bowl machine is too large, which makes the whole machine bulky, inconvenient to place, and if the washing water is not used enough, it will stay in the water tank for a long time. If more bacteria are accumulated in one day, the user will be dumped, which causes A lot of waste. For example, in the present embodiment, the entire cleaning program includes one cleaning and two rinsing, and the volume of the water tank 2 should be 3 to the volume of the liquid (cleaning liquid required for single cleaning/rinsing) contained in the cleaning tank 3. 6 times to meet the cleaning needs of 1-2 times a day. More preferably, it is more than three times the volume to compensate for the effect of residual water in the waterway on the water supply.

Example 2

The difference between the second embodiment and the first embodiment is that, as shown in FIG. 6, the water inlet 111' of the carrying platform 11' is connected to the circulation water tank 5' through a pipe, and the highest water level of the water tank 2' is higher than that of the water tank 2'. Loopback sink The top of the 5'. The water tank 2' directly supplies water to the circulation tank 5'. The highest water level of the water tank 2' is higher than the top of the circulation water tank 5', and can provide a high water pressure so that the water smoothly flows to the circulation water tank 5'.

Further, the lowest water level of the water tank 2' is lower than the bottom of the circulation water tank 5', and a water pump 6' is disposed between the circulation water tank 5' and the water inlet 111'. Thereby the water in the water tank 2' is quickly pumped to the circulation tank 5'.

Example 3

The difference between the third embodiment and the first embodiment is that, as shown in FIG. 7, the water inlet 111" of the carrying platform 11" is connected to the top of the cleaning tank 3" through a pipe and a water pump 6". The water tank 2" directly supplies water to the cleaning tank 3", and can wash the items to be cleaned from the upper portion, thereby making up for the problem that the washing arm 4 is not flushed.

The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure. All should be covered by the scope of this new type of protection. Therefore, the scope of protection of this new model shall be subject to the scope of protection of the scope of patent application.

Claims (10)

A dishwasher having a detachable water tank, comprising a body, a cleaning liner is arranged inside the body, a bottom tank is arranged at the bottom of the cleaning tank, wherein the dishwasher further comprises a water tank, and a lower side of the rear part of the body There is a carrying platform, a water inlet is arranged on the carrying platform, and a water outlet is arranged at the bottom of the water tank. The water tank is detachably mounted to the carrying platform, and the water inlet and the water outlet are connected to each other. The dishwasher according to claim 1, further comprising a spray arm and a loop pump, wherein the spray arm is disposed at a middle portion of the bottom wall of the cleaning tank, and the circulation pump sucks the water in the water tank to the spray The arm, the volume of the circulation tank and the volume of liquid contained in the cleaning tank is 1/4 to 3/4. The dishwasher according to claim 2, wherein the volume of the circulation tank is 0.8 L to 2 L, and the communication port of the circulation pump and the circulation tank is located at a lower portion of the circulation tank. The dishwasher of claim 2, wherein the volume of the water tank is 2 to 6 times the volume of the liquid contained in the cleaning bladder. The dishwasher according to claim 1, wherein the water inlet of the loading platform is connected to the circulation water tank through a pipe, and the water tank has a highest water level higher than a top of the circulation water tank. The dishwasher according to claim 5, wherein a minimum water level of the water tank is lower than a bottom of the circulation water tank, and a water pump is disposed between the circulation water tank and the water inlet. The dishwasher according to claim 1, wherein a circumference of the loading table is upwardly convex to form a first stopping portion, and a bottom periphery of the water tank is downwardly convex to form a first matching portion with the first stopping portion. Second gear Stop. The dishwasher according to any one of claims 1 to 7, wherein the outer side of the rear side wall of the body is provided with a first positioning step or a first inclined surface, and the outer side of the side wall of the water tank is provided with the first positioning. a step or a second positioning step or a second inclined surface that the first inclined surface cooperates with. The dishwasher of claim 8, wherein the top of the body is provided with a positioning mounting groove, the contour of the positioning mounting groove is adapted to the contour of the upper portion of the water tank, and/or the positioning mounting groove and the water tank are The portions are respectively provided with matching positioning protrusions and positioning grooves. A dishwasher according to claim 8, wherein at least a portion of the water tank is formed as a bottom-up transparent member to display a water level in the water tank.