Dish washing machine capable of changing tray position

Abstract

The dish-washing machine capable of changing the tray position comprises an inner container assembly, a cleaning cavity with an opening in one side, a first guide rail assembly, an upper guide rail assembly and a lower guide rail assembly are arranged in the cleaning cavity, and the first guide rail assembly is arranged between the upper guide rail assembly and the lower guide rail assembly; the bowl basket assembly is arranged in the cleaning cavity and comprises a first bowl basket and a tray, the first bowl basket is in sliding connection with the first guide rail assembly, and the tray is selectively in sliding connection with the upper guide rail assembly or the lower guide rail assembly; the spraying arm assembly is arranged in the cleaning cavity and used for washing the whole or part of the bowl basket assembly. According to the dish washing machine capable of changing the position of the tray, the tray can be switched between the upper portion and the lower portion of the first dish basket, and the position of the tray can serve as the adjusting basis of the height of the first dish basket and / or the working mode of the spraying arm assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a dishwasher with a replaceable tray position. Background Art

[0002] At present, for household dishwashers on the market, the bowl baskets in the dishwasher inner tank are generally arranged in a single-layer bowl basket layout, a two-layer bowl basket layout or a three-layer bowl basket layout. For a dishwasher with a three-layer bowl basket layout, the top layer is a knife, fork and chopstick tray (bowl basket), the middle position of the inner tank is the middle bowl basket, and the bottom of the inner tank is the bottom bowl basket. This kind of structural layout can hold a larger set of tableware. However, in real life, it may not be necessary to use so many tableware every day. For the dishwasher, a part of the space is completely idle. At this time, if the dishwasher washes all the bowl baskets, it will waste energy and is not conducive to improving the cleaning rate of tableware. Summary of the Invention

[0003] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the utility model provides a dishwasher with a replaceable tray position, the tray can be switched between above and below the first bowl basket, and the position of the tray can be used as a basis for adjusting the height of the first bowl basket and / or the working mode of the spray arm assembly.

[0004] According to the above-provided dishwasher with a replaceable tray position, it is realized through the following technical solutions:

[0005] A dishwasher with a replaceable tray position includes: an inner tank assembly having a cleaning cavity with an opening on one side, a first guide rail assembly, an upper guide rail assembly and a lower guide rail assembly are arranged in the cleaning cavity, and the first guide rail assembly is arranged between the upper guide rail assembly and the lower guide rail assembly; a bowl basket assembly arranged in the cleaning cavity and including a first bowl basket and a tray, the first bowl basket is slidably connected to the first guide rail assembly, and the tray is selectively slidably connected to the upper guide rail assembly or the lower guide rail assembly; a spray arm assembly arranged in the cleaning cavity for washing the whole or part of the bowl basket assembly; and a control assembly electrically connected to the spray arm assembly for adjusting the height of the first bowl basket and / or the working mode of the spray arm assembly according to the position of the tray.

[0006] In some embodiments, the first bowl basket includes a bowl basket body and two bowl basket wheel sets. The two bowl basket wheel sets are arranged on the left and right outer sides of the bowl basket body. Each bowl basket wheel set includes a fixed support, a roller set and a height adjustment handle. The fixed support is fixedly connected to the bowl basket body. The roller set is movably arranged up and down on the bowl basket body and is slidably connected to the first guide rail assembly. The height adjustment handle is cooperatively connected to the fixed support.

[0007] In some embodiments, the tray includes a tray body and two sliding modules. A placing area is formed inside the tray body, and a holding portion is provided at the front end of the tray body. The two sliding modules are respectively fixedly installed on the left and right outer sides at the rear end of the tray body for sliding connection with the upper guide rail assembly or the lower guide rail assembly.

[0008] In some embodiments, the tray further includes a main body bracket. The main body bracket covers the outer side of the lower end of the tray body and is located between the two sliding modules. The lower ends of the two sliding modules are respectively connected to the left and right side walls of the main body bracket.

[0009] In some embodiments, a detection switch is provided between the tray and the lower guide rail assembly or the spray arm assembly. The detection switch is electrically connected to the control component and is used to detect whether the tray is installed on the lower guide rail assembly; alternatively, a tray position button is provided on the control component.

[0010] In some embodiments, the detection switch includes a magnetic attraction member and a Hall magnetic control switch electrically connected to the control component. The magnetic attraction member is provided on the tray, and the Hall magnetic control switch is provided on the lower guide rail assembly or at a position of the spray arm assembly corresponding to the lower guide rail assembly.

[0011] In some embodiments, the magnetic attraction member is provided on the rear end of the tray, and an installation groove is provided at a position on the back surface of the spray arm assembly corresponding to the lower guide rail assembly. The Hall magnetic control switch is installed in the installation groove.

[0012] In some embodiments, the spray arm assembly includes a connecting water pipe and an upper spray arm. The upper spray arm is arranged above the upper guide rail assembly and is communicated with the connecting water pipe; the spray arm assembly further includes a lower spray arm and / or a middle spray arm. The lower spray arm is arranged below the lower guide rail assembly and is communicated with the connecting water pipe, and the middle spray arm is arranged between the first bowl basket and the lower guide rail assembly and is communicated with the connecting water pipe.

[0013] In some embodiments, a middle spray arm seat is provided in the middle of the connecting water pipe. The middle spray arm seat is provided with a first water supply port and a second water supply port arranged at intervals in the height direction. The water inlet end of the middle spray arm is selectively communicated with the first water supply port or the second water supply port.

[0014] In some embodiments, the middle spray arm includes a water distribution pipe. The middle spray arm further includes an upper spray arm with top spray holes and / or a lower spray arm with bottom spray holes. The upper spray arm is communicated with the connecting water pipe through the water distribution pipe, and the lower spray arm is communicated with the connecting water pipe through the water distribution pipe.

[0015] In some embodiments, a second guide rail assembly is further provided in the cleaning cavity and is located below the first guide rail assembly, and the second guide rail assembly is disposed above or below the lower guide rail assembly; the basket assembly further includes a second basket, and the second basket is slidably connected to the second guide rail assembly.

[0016] A control method of a dishwasher provided above is realized by the following technical solutions:

[0017] A control method of a dishwasher includes a dishwasher with a replaceable tray position as described above, and the control method includes the following steps:

[0018] S1. Before or after starting the washing program, obtain the position of the tray.

[0019] S2. If the tray is located on the upper guide rail assembly, lower the position of the first basket and / or control the spray arm assembly to wash the entire basket assembly.

[0020] S3. If the tray is located on the lower guide rail assembly, raise the position of the first basket and / or control the spray arm assembly to wash the entire or partial basket assembly.

[0021] In some embodiments, the specific steps of controlling the spray arm assembly to wash the entire or partial basket assembly include: controlling the lower spray arm to work continuously, controlling the middle spray arm to work continuously or intermittently, and controlling the upper spray arm not to work, work intermittently or work continuously.

[0022] In some embodiments, the specific steps of controlling the middle spray arm to work continuously or intermittently include: controlling the upper layer spray arm not to work, work intermittently or work continuously, and controlling the lower layer spray arm to work continuously or intermittently.

[0023] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0024] 1. In the dishwasher of the present utility model, the first basket and the tray are both movably arranged inside the inner liner assembly, and the tray can be switched between above and below the first basket, so that the position of the tray is adjustable, and the position of the tray can be used as a basis for adjusting the height of the first basket and / or the working mode of the spray arm assembly.

[0025] 2. The spray arm assembly can determine to wash the entire or partial basket assembly according to the position of the tray. When the tray is placed above the first basket, the spray arm assembly washes the entire basket assembly. When the tray is placed below the first basket, the spray arm assembly can concentrate on washing the area of the basket assembly below the first basket, which is beneficial to improving the washing efficiency of tableware and avoiding energy waste. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a dishwasher in an embodiment of the present utility model. In the figure, the tray is above the first bowl basket;

[0027] Figure 2 It is a schematic structural diagram of a dishwasher in an embodiment of the present utility model. In the figure, the tray is below the first bowl basket;

[0028] Figure 3 It is a schematic structural diagram of an inner container assembly in an embodiment of the present utility model;

[0029] Figure 4 It is a schematic structural diagram of a bowl basket assembly in an embodiment of the present utility model;

[0030] Figure 5 It is an exploded view of the first bowl basket in an embodiment of the present utility model;

[0031] Figure 6 It is a schematic structural diagram of a tray in an embodiment of the present utility model;

[0032] Figure 7 It is an exploded view of the tray in an embodiment of the present utility model;

[0033] Figure 8 It is a schematic structural diagram of a tray body in an embodiment of the present utility model;

[0034] Figure 9 It is a schematic structural diagram of a spray arm assembly integrated with a Hall magnetic control switch in an embodiment of the present utility model;

[0035] Figure 10 It is a schematic structural diagram of a spray arm assembly without a Hall magnetic control switch in an embodiment of the present utility model;

[0036] Figure 11 It is a schematic diagram of a spray arm assembly with four layers of spray arms in an embodiment of the present utility model.

[0037] In the figure: 1 - inner container assembly, 11 - cleaning cavity, 12 - inner container top plate, 13 - inner container side plate, 131 - first guide rail member, 132 - tray guide rail member, 133 - limiting convex block, 14 - inner container bottom plate, 141 - sliding platform;

[0038] 2 - Bowl basket assembly, 21 - First bowl basket, 211 - Bowl basket body, 212 - Bowl basket wheel set, 2121 - Fixed support, 2122 - Roller set, 2123 - Height adjustment handle, 22 - Tray, 221 - Tray body, 2211 - First storage area, 2212 - Second storage area, 2213 - Third storage area, 2214 - Holding part, 2215 - Clearance part, 2216 - Strip-shaped card slot, 2217 - Annular groove, 222 - Sliding module, 2221 - Hook, 223 - Main body bracket, 2231 - Support bar, 2232 - Annular connecting bar, 2233 - U-shaped connecting bar, 23 - Second bowl basket;

[0039] 3 - Spray arm assembly, 30 - Connecting water pipe, 301 - Positioning post, 302 - Installation groove, 31 - Top spray arm, 32 - Lower spray arm, 33 - Middle spray arm, 331 - Water distribution pipe, 332 - Upper layer spray arm, 333 - Lower layer spray arm, 34 - Middle layer spray arm seat, 341 - First water supply port, 342 - Second water supply port;

[0040] 41 - Magnetic part, 42 - Hall magnetic control switch. Specific embodiments

[0041] The following embodiments illustrate the present invention, but the present invention is not limited by these embodiments. Modifying the specific embodiments of the present invention or equivalently replacing some technical features without departing from the spirit of the present invention's solution shall be covered within the scope of the technical solution claimed by the present invention.

[0042] Embodiment 1

[0043] Refer to Figures 1-9 , this embodiment provides a dishwasher with an adjustable tray position, including an inner tank assembly 1, a bowl basket assembly 2, a spray arm assembly 3, and a control assembly (not shown in the figure). The inner tank assembly 1 has a cleaning cavity 11 with an opening on one side. In the cleaning cavity 11, a first guide rail assembly, an upper guide rail assembly, and a lower guide rail assembly are provided. The first guide rail assembly is arranged between the upper guide rail assembly and the lower guide rail assembly.

[0044] The bowl basket assembly 2 is detachably disposed in the washing chamber 11 and includes a first bowl basket 21 for holding tableware and a tray 22 for holding knives, forks and chopsticks. The first bowl basket 21 is slidably connected to the first guide rail assembly, and the tray 22 is selectively slidably connected to the upper guide rail assembly or the lower guide rail assembly, so that the tray 22 can be switched between the upper guide rail assembly (i.e., the first position) and the lower guide rail assembly (i.e., the second position), that is, the tray 22 can be switched between above and below the first bowl basket 21. In this way, the position of the tray 22 can be adjusted, and the position of the tray 22 can be used as a basis for adjusting the height of the first bowl basket and / or the working mode of the spray arm assembly. In this embodiment, the height of the first bowl basket 21 is adjustable, that is, the first bowl basket 21 can be switched between a high position and a low position, so that the first bowl basket 21 can move up and down relative to the inner liner assembly, ensuring that the distance between the tray 22 and the first bowl basket 21 is adjustable when the tray 22 is in different positions. In other embodiments, the first bowl basket can be designed not to move up and down relative to the inner liner assembly, so that the height of the first bowl basket 21 is not adjustable.

[0045] The spray arm assembly 3 is disposed in the washing chamber 11 and is used for washing the whole or part of the bowl basket assembly 2. The control assembly is electrically connected to the spray arm assembly 3 and is used for adjusting the height of the first bowl basket 21 and / or the working mode of the spray arm assembly 3 according to the position of the tray 22. The working mode includes a full wash mode for washing the whole bowl basket assembly 2 and a stratified wash mode for washing a part of the bowl basket assembly 2. In the stratified wash mode, the spray arm assembly 3 focuses on washing the area of the bowl basket assembly 2 below the first bowl basket 21.

[0046] See Figure 1 , when the tray 22 is placed above the first bowl basket 21, the first bowl basket 21 can be adjusted to the low position as needed. Of course, the height of the first bowl basket 21 can also not be adjusted. And the spray arm assembly 3 is configured to wash the whole bowl basket assembly 2, that is, to wash the first bowl basket 21 and the tray 22. At this time, the dishwasher starts the full wash mode.

[0047] See Figure 2, when the tray 22 is placed below the first bowl basket 21, the first bowl basket 21 can be adjusted to a high position as needed to increase the distance between the tray 22 and the first bowl basket, so that the tray can hold tall cups or more chopsticks, forks and knives. Of course, the height of the first bowl basket 21 can also not be adjusted. When the tableware stored in the first bowl basket 21 is clean and does not need to be washed, the spray arm assembly 3 is configured to concentrate on washing the area of the bowl basket assembly 2 below the first bowl basket 21. At this time, the dishwasher starts the stratified washing mode, which helps to improve the washing efficiency of the tableware and reduce energy waste; or the spray arm assembly 3 is configured to concentrate on washing the area of the bowl basket assembly 2 below the first bowl basket 21 and perform intermittent washing on the first bowl basket 21 to improve the washing efficiency of the tableware and reduce energy waste. When the first bowl basket 21 also needs to be washed, the spray arm assembly 3 is configured to wash the entire bowl basket assembly 2. At this time, the dishwasher starts the full washing mode.

[0048] Reference Figure 3 , the inner tank assembly 1 includes an inner tank top plate 12, an inner tank side plate 13 and an inner tank bottom plate 14. The inner tank top plate is connected to the inner tank bottom plate through the inner tank side plate, and the three together enclose a cleaning cavity 11 opening forward. The first guide rail assembly, the upper guide rail assembly and the lower guide rail assembly are respectively arranged on the inner tank side plate 13. Specifically, the first guide rail assembly includes two relatively arranged first guide rail members 131, and the two first guide rail members 131 are respectively installed on the left and right side wall surfaces of the cleaning cavity 11, that is, the two first guide rail members 131 are respectively installed on the two side plates at the upper end of the inner tank side plate 13. Both the upper guide rail assembly and the lower guide rail assembly include two relatively arranged tray guide rail members 132, and the two tray guide rail members 132 are respectively installed on the left and right side wall surfaces of the cleaning cavity 11, that is, two of the tray guide rail members 132 are respectively installed on the two side plates at the upper end of the inner tank side plate 13 and are arranged close to the inner tank top plate 12, and the other two tray guide rail members 132 are respectively installed on the two side plates in the middle of the inner tank side plate 13.

[0049] Reference Figures 4-5, the height of the first bowl basket 21 is adjustable. The first bowl basket 21 includes a bowl basket body 211 and two bowl basket wheel sets 212. The two bowl basket wheel sets 212 are arranged on the left and right outer sides of the bowl basket body 211 and are slidably connected to the first guide rail assembly. Specifically, the bowl basket wheel set includes a fixed support 2121, a roller set 2122, and a height adjustment handle 2123. The fixed support 2121 is fixedly connected to the bowl basket body 211, and the height adjustment handle 2123 is cooperatively connected to the fixed support 2121. The roller set 2122 is movably arranged up and down on the bowl basket body 211 and is slidably connected to the first guide rail assembly. In this embodiment, the roller set 2122 includes a roller fixing plate and a plurality of moving wheels. The roller fixing plate is movably arranged up and down on the bowl basket body 211, and the plurality of moving wheels are installed on the roller fixing plate and are slidably connected to the first guide rail assembly. Since the roller set 2122 can move up and down along the bowl basket body 211, the height adjustment of the first bowl basket is realized.

[0050] Reference Figures 4-8 , a placing area (not shown in the figure) is formed inside the tray 22. In this embodiment, the placing area includes a first placing area 2211, two second placing areas 2212, and two third placing areas 2213. The first placing area 2211 is horizontally arranged in the middle of the tray 22. The two second placing areas 2212 are respectively inclined and arranged at the left and right ends of the tray 22 and are located on the left and right outer sides of the first placing area 2211. The two third placing areas 2213 are respectively inclined and arranged at the left and right ends of the tray 22 and are located on the left and right outer sides of the two second placing areas 2212. Among them, the inclination direction of the third placing area 2213 is opposite to that of the second placing area 2212. In other embodiments, any one of the first placing area 2211, the two second placing areas 2212, or the two third placing areas 2213 can be omitted. In addition, a holding part 2214 is provided at the front end of the tray 22 to facilitate the user to manually push and pull the tray 22 and manually change the position of the tray 22. An emptying part 2215 is provided at the rear end of the tray 22 corresponding to the position of the spray arm assembly 3 to prevent the tray 22 from interfering with the spray arm assembly 3.

[0051] Specifically, the tray 22 includes a tray body 221 and two sliding modules 222. A placing area is formed inside the tray body 221. A holding part 2214 is provided at the front end of the tray body 221, and an emptying part 2215 is provided at the rear end of the tray body 221. The two sliding modules 222 are respectively fixedly installed on the left and right outer sides of the rear end of the tray body 221 and are used for sliding connection with the upper guide rail assembly or the lower guide rail assembly. In this embodiment, installation parts 2210 extending outward are integrally formed on the left and right sides of the rear end of the tray body 221, and the installation parts 2210 are fixedly connected to the upper ends of the corresponding sliding modules 222. Thus, the tray body 221 can be slidably connected to the upper guide rail assembly or the lower guide rail assembly through the two sliding modules 222.

[0052] More specifically, the tray 22 further includes a main body support 223. The main body support 223 covers the lower end of the tray body 221 and is located between the two sliding modules 222 for supporting the tray body 221. The lower ends of the two sliding modules 222 are respectively connected to the left and right side walls of the main body support 223. Thus, by providing the main body support 223, on the one hand, it realizes reliable support for the tray body 221 and improves the overall strength of the tray 2, and on the other hand, it realizes enhanced installation firmness and reliability of the sliding module 222.

[0053] In this embodiment, a plurality of strip-shaped card slots 2216 arranged at intervals side by side are recessed at the bottom of the tray body 221, and an annular groove 2217 with a downward opening is formed at the periphery of the upper end of the tray body 221. The main body support 223 includes a support strip 2231 and an annular connection strip 2232. The annular connection strip 2232 is fitted into the annular groove 2217 and is snap-connected to the tray body 221. The annular connection strip 2232 includes an upper annular rib and a lower annular rib arranged at intervals up and down, and a notch is provided at the position of the lower annular rib corresponding to the holding portion 2214. The support strip 2231 includes a plurality of sub-support strips equal in number to the strip-shaped card slots 2216. Each sub-support strip is engaged and snap-connected with the corresponding strip-shaped card slot 2216, and the front and rear ends of each sub-support strip are bent upward to form vertical sections, and the vertical sections are fixedly welded to the annular connection strip 2232. Thus, the main body support 223 is detachably connected and fixed to the tray body 221, and effectively prevents the tray body 221 from shifting relative to the main body support.

[0054] In addition, the main body support 223 further includes a U-shaped connection strip 2233. U-shaped connection strips 2233 corresponding to the sliding modules 222 are respectively provided at the left and right ends of the rear end of the annular connection strip 2232. A hook 2221 is provided at the position of the sliding module 222 corresponding to the U-shaped connection strip 2233. The hook 2221 is hooked to the lower cross bar of the U-shaped connection strip 2233 to reliably connect the lower end of the sliding module 222 to the main body support 223.

[0055] Reference Figures 7-9 , further, a detection switch (not shown in the figure) is provided between the tray 22 and the lower guide rail assembly or the spray arm assembly 3. The detection switch is electrically connected to the control assembly for detecting whether the tray 22 is installed on the lower guide rail assembly to realize automatic detection of the position of the tray 22. It should be noted that in other embodiments, a tray position button can be used to replace the detection switch, that is, a tray position button located on the control panel is provided on the control assembly. When the user manually moves the tray to the lower guide rail assembly below the first bowl basket 21 and presses the tray position button, the control assembly can identify that the tray 22 is located on the lower guide rail assembly.

[0056] The detection switch can be a non-contact switch, a micro switch that can be triggered by the tray, or a camera. Among them, the non-contact switch includes a magnetic attraction member 41 and a Hall magnetic control switch 42. The magnetic attraction member 41 is arranged at the rear end of the tray 22, and the Hall magnetic control switch 42 is arranged at the position of the spray arm assembly 3 corresponding to the lower rail assembly and is electrically connected to the control assembly. Of course, the magnetic attraction member 41 can also be arranged on the left or right side wall of the tray 22, and the Hall magnetic control switch 42 is correspondingly arranged on the lower rail assembly. Thus, when the Hall magnetic control switch 42 senses the magnetic attraction member 41, it transmits a signal to the control assembly, and the control assembly accurately identifies that the tray 22 is located on the lower rail assembly.

[0057] Reference Figure 9 , the tray 22 has an annular groove 2217 with a downward opening, and the magnetic attraction member 41 is arranged in the annular groove 2217 of the tray 22 and is arranged close to the connecting water pipe 30 of the spray arm assembly 3. An installation groove 302 is provided at the position of the back of the connecting water pipe 30 of the spray arm assembly 3 corresponding to the lower rail assembly, and the Hall magnetic control switch 42 is installed in the installation groove 302. In addition, a positioning post 301 extending backward is provided in the installation groove 302, and the positioning post is detachably connected to the Hall magnetic control switch 42.

[0058] Reference Figures 1-4 , further, a second rail assembly is also provided in the cleaning chamber 11 below the first rail assembly, and the second rail assembly is arranged above or below the lower rail assembly. The bowl basket assembly 2 further includes a second bowl basket 23, and the second bowl basket 23 is slidably connected to the second rail assembly. The spray arm assembly 3 is used to wash the entire bowl basket assembly 2, that is, to clean the whole of the bowl basket assembly 2 without performing stratified washing; or the spray arm assembly 3 is used to wash the tray 22 and the second bowl basket 23 located below the first bowl basket 21, that is, to clean a part of the bowl basket assembly 2, that is, to perform stratified washing, and only wash the second bowl basket 23 and the tray placed below the first bowl basket.

[0059] In this embodiment, the third guide rail assembly is disposed above the lower guide rail assembly and includes two sliding platforms 141. On the left and right sides of the bottom of the cleaning chamber 11, sliding platforms 141 extending upward are respectively provided. The sliding platforms 141 are used to support the pulleys of the second bowl basket 23 and perform lower limit on the second bowl basket 23. The pulleys of the second bowl basket 23 are movably installed on the top of the flat sliding platform 141. In addition, the third guide rail assembly further includes two limiting bumps 133. On the left and right side walls of the cleaning chamber 11, limiting bumps 133 extending inward and located above the sliding platforms 141 are respectively provided. The limiting blocks 133 are used to perform upper limit on the pulleys of the second bowl basket 23 and also used to strengthen the strength of the inner liner apron 13. By the cooperation of the limiting blocks 133 and the sliding platforms 141, the warping problem of the second bowl basket 23 after being pushed into the cleaning chamber 11 can be solved, and further the problem of tableware breakage caused by the warping of the second bowl basket can be solved. In other embodiments, the third guide rail assembly can be disposed above the lower guide rail assembly and includes two second guide rail members arranged oppositely. The two second guide rail members are respectively installed on the left and right side walls of the cleaning chamber 11.

[0060] Reference Figures 1-2 and Figures 8-11 , the spray arm assembly 3 includes a connecting water pipe 30 and an upper spray arm 31. The upper spray arm 31 is disposed above the upper guide rail assembly and is communicated with the connecting water pipe 30, and is used to centrally wash the first bowl basket 21 and / or the tray 22 placed on the upper guide rail assembly. Specifically, when the tray 22 is placed on the upper guide rail assembly, the upper spray arm 31 is used to centrally wash the tray 22 (or the tray 22 and the first bowl basket 21); when the tray 22 is placed on the lower guide rail assembly, the upper spray arm 31 is used to centrally wash the first bowl basket 21. In this case, if the tableware in the first bowl basket 21 is clean and does not need to be washed, the upper spray arm 31 can not work or work intermittently, so that the spray arm assembly 3 can centrally wash the area of the bowl basket assembly 2 below the first bowl basket 21, which is beneficial to improving the washing efficiency of the tableware and avoiding energy waste.

[0061] The spray arm assembly 3 further includes a lower spray arm 32 and / or a middle spray arm 33. The lower spray arm 32 is disposed below the lower guide rail assembly and is communicated with the connecting water pipe 30, and is used to centrally wash the second bowl basket 23 and / or the tray 22 placed on the lower guide rail assembly. The middle spray arm 33 is disposed between the first bowl basket 21 and the lower guide rail assembly and is communicated with the connecting water pipe 30, and is used to centrally wash at least one of the first bowl basket 21, the tray 22 placed on the lower guide rail assembly, and the second bowl basket 23. When the tray 22 is placed on the lower guide rail assembly, if the tableware in the first bowl basket 21 is clean and does not need to be washed, at this time the upper spray arm 31 can not work, work intermittently or work continuously, and the middle spray arm 33 can centrally wash the tray 22 below the first bowl basket 21. At this time, the middle spray arm 33 can work continuously or intermittently.

[0062] A middle spray arm seat 34 is provided in the middle of the connecting water pipe 30. The middle spray arm seat 34 is provided with a first water supply port 341 and a second water supply port 342 arranged at intervals in the height direction. The water inlet end of the middle spray arm 33 is selectively connected to the first water supply port 341 or the second water supply port 342, so that the height of the middle spray arm 33 is adjustable.

[0063] In this embodiment, the specific structure of the middle spray arm 33 includes but is not limited to any of the following:

[0064] See Figures 1-9 Or Figure 10 First, the middle spray arm 33 includes a water distribution pipe 331 and an upper spray arm 332 with top spray holes. The upper spray arm 332 is sequentially connected to the connecting water pipe 30 through the water distribution pipe 331 and the middle spray arm seat 34. The upper spray arm 332 is used to centrally wash the area of the bowl basket assembly 2 above the lower guide rail assembly.

[0065] Second, the middle spray arm 33 includes a water distribution pipe 331 and a lower spray arm 333 with bottom spray holes. The lower spray arm 333 is sequentially connected to the connecting water pipe 30 through the water distribution pipe 331 and the middle spray arm seat 34. The lower spray arm 333 is used to centrally wash the area of the bowl basket assembly 2 below the first bowl basket 21.

[0066] See Figure 11 Third, the middle spray arm 33 includes a water distribution pipe 331, an upper spray arm 332 with top spray holes, and a lower spray arm 333 with bottom spray holes. The upper spray arm 332 is connected to the connecting water pipe 30 through the water distribution pipe 331, and the lower spray arm 333 is connected to the connecting water pipe 30 through the water distribution pipe 331.

[0067] Embodiment 2

[0068] This embodiment provides a control method for a dishwasher, which includes a dishwasher with a replaceable tray position as described in Embodiment 1. The control method includes the following steps:

[0069] S1, before or after starting the washing program, obtain the position of the tray 22.

[0070] Specifically, determine whether the tray 22 is located on the lower guide rail assembly. It can be determined whether the tray 22 is located on the lower guide rail assembly by whether the Hall magnetic control switch 42 senses the magnetic part 41. If the Hall magnetic control switch 42 senses the magnetic part 41, it will transmit a signal to the control component, and the control component accurately identifies that the tray 22 is located on the lower guide rail assembly; on the contrary, if the Hall magnetic control switch 42 does not sense the magnetic part 41, the control component can determine that the tray 22 is located on the upper guide rail assembly.

[0071] It is also possible to determine whether the tray 22 is located on the lower guide rail assembly through a microswitch installed near the lower guide rail assembly. If the microswitch is triggered by the tray 22, the control component can determine that the tray 22 is located on the lower guide rail assembly; conversely, if the microswitch is not triggered by the tray 22, the control component can determine that the tray 22 is located on the upper guide rail assembly.

[0072] It is also possible to use a tray position button to replace the detection switch, that is, a tray position button located on the control panel is provided on the control component. After the user manually moves the tray to the lower guide rail assembly below the first bowl basket 21 and presses the tray position button, the control component can identify that the tray 22 is located on the lower guide rail assembly. Conversely, if the user does not press the tray position button, the control component can identify that the tray 22 is located on the upper guide rail assembly.

[0073] S2, if the tray 22 is located on the upper guide rail assembly, lower the position of the first bowl basket 21 and / or control the spray arm assembly 3 to wash the entire bowl basket assembly.

[0074] Specifically, after it is determined that the tray is located on the upper guide rail assembly and before the washing program is started, the first bowl basket 21 can be manually adjusted to a low position, or the height of the first bowl basket can remain unchanged. After it is determined that the tray is located on the upper guide rail assembly and after the washing program is started, the first bowl basket 21 can be automatically adjusted to a low position, or the height of the first bowl basket can remain unchanged.

[0075] After it is determined that the tray is located on the upper guide rail assembly and after the washing program is started, the spray arm assembly 3 washes the entire bowl basket assembly, that is, controls the top spray arm 31, the middle spray arm 33, and the lower spray arm 32 to work continuously to wash the entire bowl basket assembly 2, that is, wash the tray, the first bowl basket, and the second bowl basket until the washing program ends.

[0076] S3, if the tray 22 is located on the lower guide rail assembly, raise the position of the first bowl basket 21 and / or control the spray arm assembly 3 to wash the entire or partial bowl basket assembly 2.

[0077] Specifically, after it is determined that the tray is located on the lower guide rail assembly and before the washing program is started, the first bowl basket 21 can be manually adjusted to a high position, or the height of the first bowl basket can remain unchanged. After it is determined that the tray is located on the lower guide rail assembly and after the washing program is started, the first bowl basket 21 can be automatically adjusted to a high position, or the height of the first bowl basket can remain unchanged.

[0078] After determining that the tray is located on the lower guide rail assembly and starting the washing program, the spray arm assembly 3 washes the whole or part of the bowl basket assembly 2, that is, controls the lower spray arm 32 to work continuously, controls the middle spray arm 33 to work continuously or intermittently, and controls the upper spray arm 31 not to work, work intermittently or work continuously until the washing program ends. When the upper spray arm 31 does not work, the lower spray arm 32 works continuously, and the middle spray arm 33 works continuously or intermittently. At this time, stratified washing is performed, and the spray arm assembly 3 focuses on washing the area below the first bowl basket 21, which is beneficial to improving the washing efficiency of this area; when the upper spray arm 31 works intermittently, the lower spray arm 32 works continuously, and the middle spray arm 33 works continuously or intermittently. At this time, semi-full washing is performed, and the spray arm assembly 3 focuses on washing the area below the first bowl basket 21, taking into account cleaning the first bowl basket, which is beneficial to improving the washing efficiency of the area below the first bowl basket 21; when the upper spray arm 31 works continuously, the lower spray arm 32 works continuously, and the middle spray arm 33 works continuously or intermittently. At this time, full washing is performed, and the spray arm assembly 3 focuses on washing the whole bowl basket assembly 2.

[0079] Further, when the middle spray arm 33 includes an upper layer spray arm 332 and a lower layer spray arm 333, the specific steps of controlling the middle spray arm 33 to work continuously or intermittently include: controlling the upper layer spray arm 332 not to work, work intermittently or work continuously, and controlling the lower layer spray arm 333 to work continuously or intermittently.

[0080] It can be seen that by determining whether the spray arm assembly 3 cleans the whole or part of the bowl basket assembly 2 according to the position of the tray 22, when the tray 22 is placed below the first bowl basket 21, the spray arm assembly 3 can focus on washing the area of the bowl basket assembly 2 located below the first bowl basket 21, which is beneficial to improving the washing efficiency of tableware and avoiding energy waste.

[0081] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A dishwasher with a tray position that can be changed, characterized in that: include: An inner tank assembly (1) has a cleaning chamber (11) with an opening on one side, wherein a first guide rail assembly, an upper guide rail assembly and a lower guide rail assembly are arranged in the cleaning chamber (11), wherein the first guide rail assembly is arranged between the upper guide rail assembly and the lower guide rail assembly; a bowl basket assembly (2), arranged in the cleaning chamber (11) and comprising a first bowl basket (21) and a tray (22), wherein the first bowl basket (21) is slidably connected to the first guide rail assembly, and the tray (22) is selectively slidably connected to the upper guide rail assembly or the lower guide rail assembly; and A spray arm assembly (3) is arranged in the cleaning chamber (11) and is used to wash the whole or part of the bowl basket assembly (2).

2. A dishwasher with a tray position that can be changed according to claim 1, characterized in that: The first basket (21) comprises a basket body (211) and two basket wheel assemblies (212), the two basket wheel assemblies (212) being arranged on the left and right outer sides of the basket body (211), each basket wheel assembly comprising a fixed support (2121), a roller assembly (2122) and a height adjustment handle (2123), the fixed support (2121) being connected and fixed to the basket body (211), the roller assembly (2122) being arranged on the basket body (211) so as to be movable up and down and being slidably connected to the first guide rail assembly, and the height adjustment handle (2123) being cooperatively connected to the fixed support (2121).

3. The dishwasher with interchangeable tray positions according to claim 1, characterized in that: The tray (22) comprises a tray body (221) and two sliding modules (222), a containing area is formed inside the tray body (221), a gripping portion (2214) is provided at the front end of the tray body (221), and the two sliding modules (222) are respectively fixedly mounted on the left and right outer sides of the rear end of the tray body (221) for sliding connection with the upper guide rail assembly or the lower guide rail assembly.

4. A dishwasher with a tray position changeable according to claim 3, characterized in that: The tray (22) further comprises a main frame (223), wherein the main frame (223) is covered outside the lower end of the tray body (221) and is located between the two sliding modules (222), and the lower ends of the two sliding modules (222) are respectively connected to the left and right side walls of the main frame (223).

5. The dishwasher with interchangeable tray positions according to claim 1, characterized in that: A detection switch is provided between the tray (22) and the lower guide rail assembly or the spray arm assembly (3), and the detection switch is electrically connected to the control assembly and is used to detect whether the tray (22) is installed on the lower guide rail assembly; or a tray position button is provided on the control assembly.

6. The dishwasher with interchangeable tray positions according to claim 5, characterized in that: The detection switch comprises a magnetic attraction component (41) and a Hall magnetic control switch (42) electrically connected to the control component, wherein the magnetic attraction component (41) is arranged on the tray (22), and the Hall magnetic control switch (42) is arranged on the lower guide rail component or at a position of the spray arm component (3) corresponding to the lower guide rail component.

7. A dishwasher with interchangeable tray positions according to claim 6, characterized in that: The magnetic attraction member (41) is arranged on the rear end of the tray (22), and a mounting groove (302) is provided at a position on the back of the spray arm assembly (3) corresponding to the lower guide rail assembly, and the Hall magnetic control switch (42) is installed in the mounting groove (302).

8. The dishwasher with interchangeable tray positions according to claim 1, characterized in that: The spray arm assembly (3) comprises a connecting water pipe (30) and a top spray arm (31), wherein the top spray arm (31) is arranged above the upper guide rail assembly and is in communication with the connecting water pipe (30); the spray arm assembly (3) further comprises a lower spray arm (32) and / or a middle spray arm (33), wherein the lower spray arm (32) is arranged below the lower guide rail assembly and is in communication with the connecting water pipe (30), and the middle spray arm (33) is arranged between the first bowl basket (21) and the lower guide rail assembly and is in communication with the connecting water pipe (30).

9. The dishwasher with interchangeable tray positions according to claim 8, characterized in that: A middle spray arm seat (34) is provided in the middle of the connecting water pipe (30), and the middle spray arm seat (34) is provided with a first water supply port (341) and a second water supply port (342) arranged at intervals in the height direction, and a water inlet end of the middle spray arm (33) is selectively connected to the first water supply port (341) or the second water supply port (342).

10. A dishwasher with interchangeable tray positions according to claim 8 or 9, characterized in that: The middle spray arm (33) comprises a water distribution pipe (331), and the middle spray arm (33) further comprises an upper spray arm (332) having a top water spray hole and / or a lower spray arm (333) having a bottom water spray hole, the upper spray arm (332) being connected to the connecting water pipe (30) via the water distribution pipe (331), and the lower spray arm (333) being connected to the connecting water pipe (30) via the water distribution pipe (331).

11. The dishwasher with interchangeable tray positions according to claim 1, characterized in that: A second guide rail assembly is also provided in the cleaning chamber (11) and is located below the first guide rail assembly. The second guide rail assembly is arranged above or below the lower guide rail assembly. The bowl basket assembly (2) also includes a second bowl basket (23). The second bowl basket (23) is slidably connected to the second guide rail assembly.

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