Dish washing device

Abstract

The utility model relates to a dish washing device which comprises an inner container, a dish washing device body and a dish washing device body. The flow guiding device comprises a shell assembly and a valve, the shell assembly is provided with a liquid passing cavity, a water inlet, a first water outlet channel and a second water outlet channel, the water inlet, the first water outlet channel and the second water outlet channel are communicated with the liquid passing cavity, and the valve is rotatably arranged in the liquid passing cavity and is configured to be capable of adjusting the flow ratio of liquid flowing from the liquid passing cavity to the first water outlet channel and the second water outlet channel; the lower gushing arm assembly comprises a gushing arm body and a rotating part, the gushing arm body is arranged in the inner container, the rotating part is rotatably arranged on the shell assembly, the water inlet end of the rotating part communicates with the liquid passing cavity through a first water outlet channel, and the water outlet end of the rotating part extends into the inner container through the first mounting opening to be connected with the gushing arm body; and the driving device is arranged on the shell assembly, and the driving device is in driving connection with the rotating part, so that the lower spraying arm assembly can rotate relative to the inner container.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a dishwashing device. Background Technology

[0002] Currently, dishwashers in China mainly use two types of drive mechanisms for their lower spray arms: one uses the reaction force of water to make the lower spray arm rotate and clean the dishes, and the other uses electric drive to achieve rapid rotation and spraying. The advantage of using an electric drive lower spray arm is that the rotation can be controlled by the drive motor, thus improving overall washing performance. However, to ensure airtightness and prevent water from entering the motor, most electric drive lower spray arms on the market cannot be disassembled by users. If the spray arm holes become clogged, users cannot clean them themselves, leading to difficult repairs. Therefore, most dishwashers currently still use the former drive method, resulting in lower washing efficiency and failing to adequately meet users' cleaning requirements.

[0003] In addition, the water distribution valves of current dishwashers are usually integrated into the water cup to supply water to different spray arms, which also results in a larger water cup volume, increasing the water consumption of the dishwasher per cycle and causing a certain amount of waste of resources. Utility Model Content

[0004] Therefore, it is necessary to provide a dishwasher device that addresses the problem that most users cannot disassemble the electric-driven lower spray arms on the market themselves, leading to difficulties in cleaning and maintenance.

[0005] A dishwasher includes: an inner tank with a first mounting port on its bottom wall; a flow guiding device comprising a housing assembly and a valve, at least a portion of the housing assembly being disposed on the outer side of the bottom of the inner tank, the housing assembly having a liquid passage chamber and an inlet, a first outlet channel, and a second outlet channel respectively communicating with the liquid passage chamber, the valve being rotatably disposed in the liquid passage chamber and configured to adjust the flow rate ratio of liquid flowing from the liquid passage chamber to the first outlet channel and the second outlet channel respectively; a lower spray arm assembly comprising a spray arm body and a rotating part, the spray arm body being disposed in the inner tank, the rotating part being rotatably disposed on the housing assembly, the inlet end of the rotating part communicating with the liquid passage chamber through the first outlet channel, and the outlet end of the rotating part extending into the inner tank through the first mounting port and connecting to the spray arm body; and a driving device disposed on the housing assembly and drivenly connected to the rotating part, such that the lower spray arm assembly can rotate relative to the inner tank.

[0006] This application provides a dishwasher with a water distribution system at the bottom of its inner tank for supplying water to the spray arms inside. The water distribution system includes valves that, when rotated, guide the liquid in the liquid passage chamber to either a first or second water outlet channel according to the required flow rate, supplying water to the spray arms at different positions. Simultaneously, the lower spray arm assembly is rotatably mounted on a housing assembly via a rotating part. A drive device on the housing assembly is connected to the rotating part for driving the rotation. This drive device can control the rotation of the lower spray arm assembly via a drive motor, improving overall washing performance. When the user needs to disassemble the lower spray arm for cleaning and maintenance, the lower spray arm can be directly separated from the rotating part, or the housing assembly can be disassembled to expose the rotating part for removal. This design allows for easy user disassembly of the lower spray arm while still providing an electrically driven lower spray arm, thus improving the user experience and reducing maintenance costs. In addition, the water distribution system can be set independently outside the water cup. Compared with the common design that integrates the water distribution system into the water cup, it can avoid the problem of increased water consumption per dishwasher cycle due to the larger size of the water cup when integrated, thereby further improving the washing performance of the dishwasher.

[0007] In one embodiment, the housing assembly has a third outlet channel communicating with the liquid passage chamber, and the valve is configured to adjust the ratio of liquid flow from the liquid passage chamber to the first outlet channel, the second outlet channel, and the third outlet channel, respectively.

[0008] In one embodiment, the liquid-passing chamber is cylindrical, and its peripheral wall is provided with a first liquid-passing port connecting the first water outlet channel and a second liquid-passing port connecting the second water outlet channel. The valve is arc-shaped and configured to slide against the peripheral wall of the liquid-passing chamber when rotated, thereby adjusting the conduction area of ​​the first liquid-passing port and the second liquid-passing port respectively. By adopting the above structure, when the valve rotates, it slides along the peripheral wall of the cylindrical liquid-passing chamber, causing the first liquid-passing port and the second liquid-passing port to be completely or partially closed, thereby realizing the flow regulation function. The structure is simple and easy to assemble.

[0009] In one embodiment, the first and second liquid inlets are located on the same side. This can help reduce the valve size and shorten the adjustment time.

[0010] In one embodiment, the flow guiding device further includes a second drive motor. The housing assembly has a second mounting port communicating with the liquid passage chamber. The second mounting port is coaxially arranged with the liquid passage chamber. The second drive motor is adapted to be installed in the second mounting port, and the output end of the second drive motor extends into the liquid passage chamber and is connected to the valve drive. By adopting the above structure, the housing assembly is provided with a second drive motor for connecting to the valve drive, thereby controlling the rotation of the valve through the second drive motor and improving the overall washing performance.

[0011] In one embodiment, the flow guiding device further includes a first sealing ring, which is sleeved on the outer peripheral wall of the second drive motor. The first sealing ring is used to seal the gap between the second drive motor and the second mounting port. The first sealing ring ensures a good seal between the second drive motor and the second mounting port, effectively preventing liquid leakage from the liquid passage chamber through the second mounting port.

[0012] In one embodiment, the second drive motor has a first connection hole, and the housing assembly has a second connection hole. The first connection hole and the second connection hole are connected to the second drive motor and the housing assembly by fasteners. By adopting the above connection structure, the assembly and disassembly of the second drive motor and the housing assembly can be facilitated. The fasteners can generate a large dispersion force with the hole wall, thereby making the connection more stable and tight, which is beneficial to the sealed connection between the second drive motor and the housing assembly.

[0013] In one embodiment, the rotating part includes a rotating shaft body and a limiting part. The limiting part is disposed on the outer side wall of the rotating shaft body. The housing assembly includes a mounting body and a connecting cover plate. The connecting cover plate is detachably disposed on the outer side of the mounting body. The mounting body is provided with the liquid passage chamber, the water inlet, and the first water outlet channel. The connecting cover plate is provided with a through hole opposite to the water outlet of the first water outlet channel. The rotating shaft body is rotatably disposed at the water outlet. The water inlet end of the rotating shaft body communicates with the liquid passage chamber through the first water outlet channel. The water outlet end of the rotating shaft body passes through the first mounting port and the through hole and is connected to the spray arm body. The top wall of the limiting part abuts against the connecting cover plate. By setting a detachable mounting body and a connecting cover, when the rotating shaft body is installed at the outlet of the first water outlet channel on the mounting body, the connecting cover and the mounting body can be used to limit the limiting part on the outer wall of the rotating shaft body. The top of the connecting cover and the limiting part abut against each other to restrict the movement of the spray arm in the height direction, so as to ensure that the spray arm assembly will not loosen and fall off when it is impacted by the water flow from the mounting housing.

[0014] In one embodiment, the limiting part is annular and is sleeved on the outside of the rotating shaft body.

[0015] In one embodiment, the bottom wall of the inner liner is sandwiched between the connecting cover and the mounting body. By employing this structure, the cooperation between the connecting cover and the mounting body allows the housing assembly to be stably positioned at the bottom of the inner liner, and the detachable connection between the mounting body and the connecting cover facilitates disassembly and cleaning for the user.

[0016] In one embodiment, a second sealing ring is further included, which is used to seal the connection gap between the bottom wall of the inner liner and the mounting body and / or the connecting cover plate. The second sealing ring ensures a good seal between the bottom wall of the inner liner and the mounting body and / or the connecting cover plate, effectively preventing liquid leakage from the inner liner through the mounting port.

[0017] In one embodiment, the mounting body has a third connecting hole, and the connecting cover plate has a fourth connecting hole. The third connecting hole and the fourth connecting hole are connected to the mounting body and the connecting cover plate by fasteners. By adopting the above connection structure, the assembly and disassembly of the connecting cover plate and the mounting body can be facilitated. The fasteners can generate a large dispersion force with the hole wall, thereby making the connection more stable and tight, which is beneficial to the sealing connection of the connecting cover plate, the bottom wall of the inner liner, and the mounting body.

[0018] In one embodiment, the connecting cover plate and the mounting body enclose to form the second water outlet channel, and the connecting cover plate has a water outlet end of the second water outlet channel located in the inner tank. By adopting the above structure, the water outlet end of the second water outlet channel can be led into the inner tank to connect with the middle spray arm, top spray arm, or back area spray. Compared to having the water outlet end of the second water outlet channel located outside the inner tank, this helps to reduce the inconvenience caused by leakage at the connection point.

[0019] In one embodiment, the second water outlet channel is connected to the middle spray arm, the top spray arm, or the back area wash, etc.

[0020] In one embodiment, a mounting platform is formed on the side of the housing assembly near the inner liner. The mounting platform has an outlet for the first water outlet channel. The rotating part is rotatably disposed at the outlet. The driving device includes a first drive motor and a gear assembly. The gear assembly is rotatably disposed on the mounting platform. The input end of the gear assembly is drively connected to the output shaft of the first drive motor. A rack is formed on the outer peripheral wall of the rotating part. The rack extends along the rotation direction of the rotating part and meshes with the output end of the gear assembly. By adopting the above structure, the output shaft of the first drive motor is fixedly provided with the gear assembly. The other end of the gear assembly is simultaneously meshed with the rack on the outer wall of the rotating part. Thus, when the first drive motor drives the gear assembly to rotate, the gear assembly will cooperate with the rack, driving the rotating part and the spray arm body to rotate around its axis. The gear transmission structure is compact and suitable for short-distance transmission and adjustment of rotation direction, which greatly facilitates designers in rationally arranging the installation of the first drive motor and the rotating part.

[0021] In one embodiment, the rack is disposed on the outer peripheral wall of the rotating shaft body or the limiting part.

[0022] In one embodiment, an annular groove is formed on the side of the rotating part away from the mounting port, and a limiting ring is formed on the side of the mounting platform near the inner liner. The inner wall of the limiting ring forms the outlet of the first water outlet channel, and the limiting ring is fitted into the annular groove. By adopting the above structure, without affecting the rotation of the rotating part, the cooperation of the annular groove and the limiting ring can limit the rotation of the rotating part, which can help to quickly position and install the rotating part, ensure that the rack of the rotating part can smoothly mesh with the gear assembly, and when the rotating part is inserted into the outlet of the first water outlet channel, the limiting ring is simultaneously fitted into the annular groove at the bottom of the rotating part, which can improve the sealing of the connection between the rotating part and the outlet of the first water outlet channel, and prevent the liquid in the shell assembly from leaking out through the connection.

[0023] In one embodiment, the mounting platform has a shaft hole, and the first drive motor is located on the side of the mounting platform away from the inner liner. The output shaft of the first drive motor passes through the shaft hole and is connected to the input end of the gear assembly. The drive device also includes a third sealing ring, which is sleeved on the output shaft of the first drive motor and is used to seal the gap between the output shaft of the first drive motor and the shaft hole. By adopting the above structure, the first drive motor is located on the side of the mounting platform away from the inner liner. On the one hand, this achieves a reasonable arrangement of the first drive motor, which helps to shorten the distance between the outlet of the first water outlet channel and the mounting port, and reduce the length of the rotating part. On the other hand, the mounting platform can separate the inner liner and the first drive motor, reducing the possibility of water entering the first drive motor. Furthermore, the gap between the output shaft of the first drive motor and the shaft hole of the mounting platform is well sealed by the third sealing ring. This structure ensures that the first drive motor can drive the gear assembly to rotate on the mounting platform to achieve transmission of the rotating part, and also effectively prevents leakage, thereby improving the rotation efficiency and safety of the lower spray arm assembly.

[0024] In one embodiment, the mounting platform is provided with a connecting post for fixing the first drive motor. The connecting post allows for more flexible installation of the first drive motor, ensuring a stable fit between the output shaft of the first drive motor and the shaft hole of the mounting platform, preventing it from easily coming loose.

[0025] In one embodiment, the gear assembly includes an input gear and an output gear, which are respectively mounted on the mounting platform. The input gear is sleeved on the output shaft of the first drive motor, and the input gear is drivingly connected to the output gear. The output gear meshes with the rack. This gear transmission structure is compact, suitable for short-distance transmission, has high transmission efficiency, reliable operation, and long service life.

[0026] In one embodiment, a positioning shaft is also included, which is disposed on the mounting platform, and the output gear is rotatably connected to the mounting platform via the positioning shaft.

[0027] In one embodiment, a position detection component is further included, which is used to obtain the rotational position of the lower spray arm assembly. By detecting the rotational position of the lower spray arm assembly, the first drive motor can be used to accurately control the forward and reverse rotation of the lower spray arm, so as to better achieve enhanced washing of specific areas.

[0028] In one embodiment, the position detection component includes a first detection ring and a tactile switch. The first detection ring is sleeved on the outside of the output shaft of the first drive motor. The outer peripheral wall of the first detection ring has protrusions forming multiple detection contacts for triggering the tactile switch. The multiple detection contacts are spaced apart along the rotation direction of the output shaft of the first drive motor, and the stroke between any one detection contact and its two adjacent detection contacts is different. By adopting the above structure, when the output shaft of the first drive motor rotates, it will drive the first detection ring to rotate synchronously with respect to the tactile switch. When the detection contacts on the first detection ring touch the detection end of the tactile switch, the tactile switch can be triggered. Thus, the two detection contacts with corresponding strokes can be determined by the time value of two consecutive triggers, and the rotational position of the corresponding first drive motor output shaft and lower spray arm assembly can be further analyzed and obtained.

[0029] In one embodiment, the position detection component includes a second detection ring and an optocoupler. The second detection ring is sleeved on the outside of the output shaft of the first drive motor. The outer peripheral wall of the second detection ring has multiple protrusions and multiple notches, which are alternately distributed along the rotation direction of the output shaft of the first drive motor. The protrusions are used to block the light emitted by the optocoupler, and the notches are used to allow the light emitted by the optocoupler to pass through. At least two of the protrusions have different widths and / or at least two of the notches have different widths. By setting the optocoupler to emit and receive light sources, when the output shaft of the first drive motor rotates, it will drive the second detection ring to rotate synchronously relative to the optocoupler. When the protrusion on the second detection ring rotates to the detection position of the optocoupler, the light is blocked until it rotates to the notch, allowing the light to pass through again. Thus, the blocking or opening of the light path triggers the optocoupler to generate a signal and record it. By judging the time value of two consecutive triggers, the two protrusions or two notches corresponding to the stroke can be determined, and the rotation position of the corresponding first drive motor output shaft and lower spray arm assembly can be further analyzed and obtained.

[0030] In one embodiment, the spray arm body and the rotating part are integrally formed. This improves connection strength, reduces the number of parts, and shortens installation steps. When the user needs to disassemble the lower spray arm assembly, the rotating part can be exposed by removing the connecting cover to remove the lower spray arm assembly.

[0031] In one embodiment, the connecting cover plate includes a first plate and a second plate, which are detachably disposed on the outside of the mounting body, and the first plate and the second plate cooperate to form the through hole.

[0032] In one embodiment, the spray arm body and the rotating part are connected by at least one of the following methods: snap-fit, thread, or bolt. This allows for quick assembly and disassembly of the spray arm body and the rotating part, facilitating cleaning and maintenance of the spray arm body, thereby improving the user experience and reducing maintenance costs.

[0033] In one embodiment, the bottom of the spray arm body has a connecting portion for connection with the rotating part.

[0034] In one embodiment, a limiting step is formed on the outer peripheral wall of one of the rotating part and the connecting part, and a connecting ear is formed on the other of the rotating part and the connecting part. The connecting ear is configured to engage with the limiting step to restrict the movement of the spray arm body away from the first water outlet channel. By providing matching limiting steps and connecting ears on the rotating part and the connecting part respectively, quick connection and separation of the spray arm body and the rotating part can be achieved. When the spray arm body is engaged with the limiting step of the rotating part by the connecting ear, the connecting ear will abut against the limiting step to restrict the movement of the spray arm body in the height direction, thereby ensuring that the spray arm body will not loosen or fall off when impacted by water flow from the mounting housing.

[0035] In one embodiment, the peripheral wall of the rotating part is formed with the limiting step. The connecting part includes a connecting shaft and a connecting lug. The connecting shaft communicates with the liquid passage chamber through the rotating part. The connecting lug includes a connecting arm and an abutment. One end of the connecting arm is connected to the outer peripheral wall of the connecting shaft, and the other end of the connecting arm extends downward and connects to the abutment. The abutment abuts against the bottom wall of the limiting step to restrict the movement of the spray arm body away from the first water outlet channel. By adopting the above structure, when the spray arm body is fastened to the limiting step of the rotating part by the connecting lug, the abutment will abut against the bottom wall of the limiting step to restrict the movement of the spray arm body in the height direction, thereby ensuring that the spray arm body will not loosen or fall off when impacted by water flow from the mounting housing.

[0036] In one embodiment, the connecting lug mates with the outer peripheral wall of the connecting shaft to form a limiting groove, and the end of the rotating part away from the housing assembly extends into the limiting groove and abuts against the bottom wall of the limiting groove. By adopting the above structure, the abutment between the rotating part and the bottom wall of the limiting groove provides stable support for the installation of the spray arm body.

[0037] In one embodiment, the connecting shaft is inserted into the rotating part, and the connecting part further includes a fourth sealing ring, which is sleeved on the outer peripheral wall of the connecting shaft. The fourth sealing ring is used to seal the connection gap between the connecting shaft and the rotating part. The fourth sealing ring ensures a good seal between the connecting shaft and the rotating part, effectively preventing liquid entering the rotating part from leaking through the connection gap.

[0038] In one embodiment, one of the connecting shaft and the rotating part has a raised rib, and the other of the connecting shaft and the rotating part has a slot, with the raised rib fitting into the slot. By adopting the above structure, the cooperation between the raised rib and the slot can restrict the rotation of the spray arm body, preventing the spray arm body from rotating due to the reaction force of the water, and ensuring that the spray arm body and the rotating part rotate synchronously.

[0039] In one embodiment, the number of slots is at least two, and the at least two slots are arranged at circumferential intervals along the rotating part. The number of ribs is the same as the number of slots and they are arranged in a one-to-one correspondence.

[0040] In one embodiment, the number of connecting ears is at least two, and the at least two connecting ears are arranged at circumferential intervals along the rotating part and are alternately distributed with at least two ribs. Attached Figure Description

[0041] Figure 1 An exploded view of a cleaning apparatus according to one embodiment;

[0042] Figure 2 A partial structural diagram of a cleaning device according to one embodiment;

[0043] Figure 3 This is a first mounting diagram of the housing assembly and the rotating part according to one embodiment;

[0044] Figure 4 This is a second mounting diagram of the housing assembly and the rotating part according to one embodiment;

[0045] Figure 5 An exploded view of a flow guiding device according to one embodiment;

[0046] Figure 6 This is a first mounting diagram of the drive device and the rotating part according to one embodiment;

[0047] Figure 7 This is a second mounting diagram of the drive device and the rotating part according to one embodiment;

[0048] Figure 8 This is a first structural schematic diagram of a position detection component according to one embodiment;

[0049] Figure 9 This is a schematic diagram of the second structure of a position detection component according to one embodiment;

[0050] Figure 10 This is a first installation schematic diagram of the lower spray arm and the rotating part according to one embodiment;

[0051] Figure 11 This is a second installation diagram of the lower spray arm and rotating part according to one embodiment.

[0052] The correspondence between the reference numerals and the component names is as follows:

[0053] 1. Inner liner, 101. First installation port;

[0054] 2. Flow guiding device, 201. Liquid passage chamber, 202. Water inlet, 203. First water outlet channel, 2031. Water outlet, 204. Second water outlet channel, 205. First liquid passage, 206. Second liquid passage, 207. Second mounting port, 208. Third connecting hole, 209. Fourth connecting hole, 210. Shaft hole, 21. Housing assembly, 211. Mounting body, 2111. Mounting platform, 21111. Limiting ring, 2112. Connecting column, 2113. Positioning shaft, 212. Connecting cover plate, 22. Valve, 23. Second drive motor, 24. First sealing ring;

[0055] 3. Lower spray arm assembly, 301. Annular groove, 302. Limiting groove, 303. Slot, 31. Spray arm body, 311. Connecting part, 3111. Connecting shaft, 3112. Connecting ear, 31121. Connecting arm, 31122. Abutting part, 3113. Fourth sealing ring, 3114. Protruding rib, 32. Rotating part, 321. Rotating shaft body, 322. Limiting part, 323. Rack, 324. Limiting step;

[0056] 4. Drive unit, 41. First drive motor, 42. Gear assembly, 421. Input gear, 422. Output gear, 43. Third sealing ring;

[0057] 5. Second sealing ring;

[0058] 6. Position detection assembly, 61. First detection ring, 62. Tactile switch, 63. Second detection ring, 64. Optocoupler. Detailed Implementation

[0059] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0060] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0061] The dishwasher apparatus of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0062] like Figures 1 to 11 As shown, this embodiment discloses a dishwasher, including: an inner tank 1, with a first mounting port 101 on the bottom wall of the inner tank 1; and a flow guiding device 2, which includes a housing assembly 21 and a valve 22. At least a portion of the housing assembly 21 is disposed on the outer side of the bottom of the inner tank 1. The housing assembly 21 has a liquid passage chamber 201 and a water inlet 202, a first water outlet channel 203, and a second water outlet channel 204 respectively connected to the liquid passage chamber 201. The valve 22 is rotatably disposed in the liquid passage chamber 201 and is configured to regulate the flow from the liquid passage chamber 201 to the first water outlet channel 203 and the second water outlet channel 204 respectively. The liquid flow rate ratio of the water channel 204; the lower spray arm assembly 3, which includes a spray arm body 31 and a rotating part 32, wherein the spray arm body 31 is disposed in the inner liner 1, and the rotating part 32 is rotatably disposed on the housing assembly 21, wherein the water inlet end of the rotating part 32 is connected to the liquid passage 201 through the first water outlet channel 203, and the water outlet end of the rotating part 32 extends into the inner liner 1 through the first mounting port 101 and is connected to the spray arm body 31; the driving device 4, which is disposed on the housing assembly 21, and is drivenly connected to the rotating part 32 so that the lower spray arm assembly 3 can rotate relative to the inner liner 1.

[0063] This application provides a dishwasher with a water distribution system at the bottom of its inner tank 1 for supplying water to the spray arms inside the inner tank 1. The water distribution system is equipped with a valve 22, which, when rotated, guides the liquid in the liquid passage chamber 201 to the first water outlet channel 203 or the second water outlet channel 204 according to the required flow rate, to supply the spray arms at different positions. Simultaneously, the lower spray arm assembly 3 is rotatably mounted on the housing assembly 21 via a rotating part 32. The housing assembly 21 is equipped with a drive device 4 for driving the rotating part 32. The drive device 4 can drive the rotating part 32 to rotate, thereby controlling the rotation of the lower spray arm assembly 3 through a drive motor, improving the overall washing performance. When the user needs to disassemble the lower spray arm for cleaning and maintenance, the lower spray arm can be directly separated from the rotating part 32, or the rotating part 32 can be exposed by disassembling the housing assembly 21 to remove the lower spray arm. This design allows for easy user disassembly of the lower spray arm while still satisfying the requirement of electric drive, thereby improving the user experience and reducing maintenance costs. In addition, the water distribution system can be set independently outside the water cup. Compared with the common design that integrates the water distribution system into the water cup, it can avoid the problem of increased water consumption per dishwasher cycle due to the larger size of the water cup when integrated, thereby further improving the washing performance of the dishwasher.

[0064] In addition to the features of the above embodiments, this embodiment further specifies that: the housing assembly 21 is provided with a third water outlet channel connected to the liquid chamber 201, and the valve 22 is configured to adjust the liquid flow rate ratio from the liquid chamber 201 to the first water outlet channel 203, the second water outlet channel 204 and the third water outlet channel respectively.

[0065] like Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the liquid passage chamber 201 is cylindrical, and the peripheral wall of the liquid passage chamber 201 is provided with a first liquid passage port 205 communicating with the first water outlet channel 203 and a second liquid passage port 206 communicating with the second water outlet channel 204; the valve 22 is arc-shaped, and the valve 22 is configured to slide against the peripheral wall of the liquid passage chamber 201 when rotated, so as to adjust the conduction area of ​​the first liquid passage port 205 and the second liquid passage port 206 respectively. By adopting the above structure, when the valve 22 rotates, it will slide along the peripheral wall of the cylindrical liquid passage chamber 201, causing the first liquid passage port 205 and the second liquid passage port 206 to be completely or partially closed, thereby realizing the flow regulation function. The structure is simple and easy to assemble.

[0066] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the first liquid outlet 205 and the second liquid outlet 206 are located on the same side. This can help reduce the size of the valve 22 and shorten the adjustment time.

[0067] like Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the flow guiding device 2 also includes a second drive motor 23; the housing assembly 21 is provided with a second mounting port 207 communicating with the liquid passage chamber 201; the second mounting port 207 is coaxially arranged with the liquid passage chamber 201; the second drive motor 23 is adapted to be installed with the second mounting port 207; and the output end of the second drive motor 23 extends into the liquid passage chamber 201 and is driven and connected to the valve 22. By adopting the above structure, the housing assembly 21 is provided with a second drive motor 23 for driving and connecting to the valve 22, thereby controlling the rotation of the valve 22 through the second drive motor 23, improving the overall washing performance.

[0068] like Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the flow guiding device 2 also includes a first sealing ring 24, which is sleeved on the outer peripheral wall of the second drive motor 23. The first sealing ring 24 is used to seal the gap between the second drive motor 23 and the second mounting port 207. By providing the first sealing ring 24, a good seal can be achieved between the second drive motor 23 and the second mounting port 207, effectively preventing liquid in the liquid passage chamber 201 from leaking through the second mounting port 207.

[0069] like Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second drive motor 23 is provided with a first connecting hole, and the housing assembly 21 is provided with a second connecting hole. The first connecting hole and the second connecting hole are connected to the second drive motor 23 and the housing assembly 21 by fasteners. By adopting the above connection structure, the assembly and disassembly of the second drive motor 23 and the housing assembly 21 can be facilitated. The fasteners can generate a large dispersion force with the hole wall, thereby making the connection part 311 more stable and tight, which is beneficial to the sealed connection of the second drive motor 23 and the housing assembly 21.

[0070] like Figure 3 and Figure 4As shown, in addition to the features of the above embodiments, this embodiment further defines: the rotating part 32 includes a rotating shaft body 321 and a limiting part 322. The limiting part 322 is disposed on the outer side wall of the rotating shaft body 321. The housing assembly 21 includes a mounting body 211 and a connecting cover plate 212. The connecting cover plate 212 is detachably disposed on the outside of the mounting body 211. The mounting body 211 is provided with a liquid passage chamber 201, a water inlet 202 and a first water outlet channel 203. The connecting cover plate 212 is provided with a through hole opposite to the water outlet 2031 of the first water outlet channel 203. The rotating shaft body 321 is rotatably disposed at the water outlet 2031. The water inlet end of the rotating shaft body 321 is connected to the liquid passage chamber 201 through the first water outlet channel 203. The water outlet end of the rotating shaft body 321 passes through the first mounting port 101 and the through hole and is connected to the spray arm body 31. The top wall of the limiting part 322 abuts against the connecting cover plate 212. By providing a detachable mounting body 211 and a connecting cover 212, when the rotating shaft body 321 is installed at the outlet 2031 of the first water outlet channel 203 on the mounting body 211, the connecting cover 212 and the mounting body 211 can be used to limit the limiting part 322 on the outer wall of the rotating shaft body 321. The top of the connecting cover 212 and the limiting part 322 abut against each other to restrict the movement of the spray arm in the height direction, thereby ensuring that the spray arm assembly 3 will not loosen and fall off when it is impacted by the water flow from the mounting housing.

[0071] In addition to the features of the above embodiments, this embodiment further specifies that: the limiting part 322 is annular and is sleeved on the outside of the rotating shaft body 321.

[0072] like Figure 1 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the bottom wall of the inner liner 1 is sandwiched between the connecting cover plate 212 and the mounting body 211. By adopting the above structure, the cooperation between the connecting cover plate 212 and the mounting body 211 allows the shell assembly 21 to be stably installed at the bottom of the inner liner 1, and the mounting body 211 and the connecting cover plate 212 are detachably connected, which can facilitate disassembly and cleaning for users.

[0073] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further includes a second sealing ring 5, which is used to seal the connection gap between the bottom wall of the inner liner 1 and the mounting body 211 and / or the connecting cover plate 212. By providing the second sealing ring 5, a good seal can be achieved between the connection gap between the bottom wall of the inner liner 1 and the mounting body 211 and / or the connecting cover plate 212, effectively preventing liquid leakage from the inner liner 1 through the mounting port.

[0074] like Figure 4 and Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting body 211 is provided with a third connecting hole 208, and the connecting cover plate 212 is provided with a fourth connecting hole 209. The third connecting hole 208 and the fourth connecting hole 209 are connected to the mounting body 211 and the connecting cover plate 212 by fasteners. By adopting the above connection structure, the assembly and disassembly of the connecting cover plate 212 and the mounting body 211 can be facilitated. The fasteners can generate a large dispersion force with the hole wall, thereby making the connection part 311 more stable and tight, which is beneficial to the sealing connection of the connecting cover plate 212, the bottom wall of the inner liner 1, and the mounting body 211.

[0075] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting cover plate 212 and the mounting body 211 enclose to form a second water outlet channel 204, and the connecting cover plate 212 forms the water outlet end of the second water outlet channel 204, which is located in the inner tank 1. By adopting the above structure, the water outlet end of the second water outlet channel 204 can be led into the inner tank 1 to connect with the middle spray arm, the top spray arm, or the back area spray. Compared to the second water outlet channel 204 having its water outlet end located outside the inner tank 1, this can help reduce the inconvenience caused by leakage at the connection part 311.

[0076] In addition to the features of the above embodiments, this embodiment further specifies that the second water outlet channel 204 is connected to the middle spray arm, the top spray arm, or the back area wash, etc.

[0077] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a mounting platform 2111 is formed on the side of the shell assembly 21 near the inner liner 1, the mounting platform 2111 is provided with an outlet 2031 of the first water outlet channel 203, the rotating part 32 is rotatably disposed at the outlet 2031, the driving device 4 includes a first drive motor 41 and a gear assembly 42, the gear assembly 42 is rotatably disposed on the mounting platform 2111, the input end of the gear assembly 42 is connected to the output shaft of the first drive motor 41, a rack 323 is formed on the outer peripheral wall of the rotating part 32, the rack 323 extends along the rotation direction of the rotating part 32 and meshes with the output end of the gear assembly 42. By adopting the above structure, a gear assembly 42 is fixedly mounted on the output shaft of the first drive motor 41. The other end of the gear assembly 42 is simultaneously engaged with a rack 323 on the outer wall of the rotating part 32. Thus, when the first drive motor 41 drives the gear assembly 42 to rotate, the gear assembly 42 will cooperate with the rack 323, driving the rotating part 32 and the spray arm body 31 to rotate around their axis. The gear transmission structure is compact and suitable for short-distance transmission and adjustment of the rotation direction, which greatly facilitates designers in rationally arranging the installation of the first drive motor 41 and the rotating part 32.

[0078] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the rack 323 is disposed on the outer peripheral wall of the rotating shaft body 321 or the limiting part 322.

[0079] like Figure 3 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: an annular groove 301 is formed on the side of the rotating part 32 away from the mounting port, a limiting ring 21111 is formed on the side of the mounting platform 2111 near the inner liner 1, the inner wall of the limiting ring 21111 forms the outlet 2031 of the first water outlet channel 203, and the limiting ring 21111 is adapted to the annular groove 301 for installation. By adopting the above structure, without affecting the rotation of the rotating part 32, the cooperation of the annular groove 301 and the limiting ring 21111 can limit the rotation of the rotating part 32, which can help the rotating part 32 to be quickly positioned and installed, and ensure that the rack 323 of the rotating part 32 can be smoothly engaged with the gear assembly 42. When the rotating part 32 is inserted into the outlet 2031 of the first water outlet channel 203, the limiting ring 21111 is simultaneously adapted to the annular groove 301 at the bottom of the rotating part 32, which can improve the sealing of the connection between the rotating part 32 and the outlet 2031 of the first water outlet channel 203, and prevent the liquid in the housing assembly 21 from leaking out through the connection.

[0080] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting platform 2111 is provided with a shaft hole 210, the first drive motor 41 is disposed on the side of the mounting platform 2111 away from the inner liner 1, the output shaft of the first drive motor 41 passes through the shaft hole 210 and is connected to the input end of the gear assembly 42 for transmission, the drive device 4 also includes a third sealing ring 43, the third sealing ring 43 is sleeved on the output shaft of the first drive motor 41, and the third sealing ring 43 is used to seal the gap between the output shaft of the first drive motor 41 and the shaft hole 210. By adopting the above structure, the first drive motor 41 is set on the side of the mounting platform 2111 away from the inner tank 1. On the one hand, this achieves a reasonable arrangement of the first drive motor 41, which helps to shorten the distance between the outlet 2031 of the first water outlet channel 203 and the mounting port, and reduce the length of the rotating part 32. On the other hand, the mounting platform 2111 can separate the inner tank 1 and the first drive motor 41, reducing the possibility of water entering the first drive motor 41. Furthermore, the gap between the output shaft of the first drive motor 41 and the shaft hole 210 of the mounting platform 2111 is well sealed by the third sealing ring 43. Through this structure, it is ensured that the first drive motor 41 can drive the gear assembly 42 to rotate on the mounting platform 2111 to realize the transmission of the rotating part 32, and it can also effectively prevent leakage, thereby improving the rotation efficiency and safety of the lower spray arm assembly 3.

[0081] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a connecting post 2112 is provided on the mounting platform 2111, and the connecting post 2112 is used to fix the first drive motor 41. The use of the connecting post 2112 makes the installation of the first drive motor 41 more flexible, ensuring that the output shaft of the first drive motor 41 can be stably positioned and less prone to loosening when assembled with the shaft hole 210 of the mounting platform 2111.

[0082] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the gear assembly 42 includes an input gear 421 and an output gear 422, which are respectively mounted on the mounting platform 2111. The input gear 421 is sleeved on the output shaft of the first drive motor 41, and the input gear 421 and the output gear 422 are connected in a transmission manner. The output gear 422 meshes with the rack 323. The gear transmission structure is compact, suitable for short-distance transmission, has high transmission efficiency, reliable operation, and long service life.

[0083] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further includes a positioning shaft 2113, which is disposed on the mounting platform 2111, and the output gear 422 is rotatably connected to the mounting platform 2111 via the positioning shaft 2113.

[0084] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further includes a position detection component 6, which is used to obtain the rotational position of the lower spray arm assembly 3. By detecting and knowing the rotational position of the lower spray arm assembly 3, the first drive motor 41 can easily cooperate to achieve precise control of the forward and reverse rotation of the lower spray arm, so as to better achieve enhanced washing of specific areas.

[0085] like Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the position detection component 6 includes a first detection ring 61 and a tactile switch 62. The first detection ring 61 is sleeved on the outside of the output shaft of the first drive motor 41. The outer peripheral wall of the first detection ring 61 has protrusions forming multiple detection contacts for triggering the tactile switch 62. The multiple detection contacts are distributed at intervals along the rotation direction of the output shaft of the first drive motor 41, and the stroke between any detection contact and two adjacent detection contacts is different. By adopting the above structure, when the output shaft of the first drive motor 41 rotates, it will drive the first detection ring 61 to rotate synchronously with the tactile switch 62. When the detection contact on the first detection ring 61 touches the detection end of the tactile switch 62, the tactile switch 62 can be triggered. Thus, the two detection contacts with corresponding strokes can be determined by the time value of two consecutive triggers, and the rotation position of the corresponding output shaft of the first drive motor 41 and the lower spray arm assembly 3 can be further analyzed and obtained.

[0086] like Figure 9 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the position detection component 6 includes a second detection ring 63 and an optocoupler 64. The second detection ring 63 is sleeved on the outside of the output shaft of the first drive motor 41. The outer peripheral wall of the second detection ring 63 has a plurality of protrusions and a plurality of notches. The plurality of protrusions and the plurality of notches are alternately distributed along the rotation direction of the output shaft of the first drive motor 41. The plurality of protrusions are used to block the light emitted by the optocoupler 64, and the plurality of notches are used to allow the light emitted by the optocoupler 64 to pass through. The widths of at least two protrusions are different from each other and / or the widths of at least two notches are different from each other. By setting up an optocoupler 64 to emit and receive light sources, when the output shaft of the first drive motor 41 rotates, it will drive the second detection ring 63 to rotate synchronously relative to the optocoupler 64. When the protrusion on the second detection ring 63 rotates to the detection position of the optocoupler 64, the light is blocked until it rotates to the gap, allowing the light to pass through again. Thus, by blocking or opening the light path, the optocoupler 64 is triggered to generate a signal and record it. By judging the time value of two consecutive triggers, the two protrusions or two gaps in the corresponding stroke can be determined, and the rotation position of the corresponding first drive motor 41 output shaft and the lower spray arm assembly 3 can be further analyzed and obtained.

[0087] In addition to the features of the above embodiments, this embodiment further specifies that the spray arm body 31 and the rotating part 32 are integrally formed. This can help improve the connection strength, reduce the number of parts, and shorten the installation steps. When the user needs to disassemble the lower spray arm assembly 3, the rotating part 32 can be exposed by removing the connecting cover plate 212 to remove the lower spray arm assembly 3.

[0088] In addition to the features of the above embodiments, this embodiment further specifies that: the connecting cover plate 212 includes a first plate and a second plate, the first plate and the second plate are respectively detachably disposed on the outside of the mounting body 211, and the first plate and the second plate cooperate to form a through hole.

[0089] In addition to the features of the above embodiments, this embodiment further specifies that the spray arm body 31 and the rotating part 32 are connected by at least one of the following methods: snap-fit, thread, or bolt. This allows for quick assembly and disassembly of the spray arm body 31 and the rotating part 32, providing convenience for users to clean and maintain the spray arm body 31, thereby improving the user experience and reducing maintenance costs.

[0090] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the bottom of the spray arm body 31 is formed with a connecting portion 311 for connecting with the rotating portion 32.

[0091] like Figure 10 and Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the outer peripheral wall of one of the rotating part 32 and the connecting part 311 protrudes to form a limiting step 324, and the other of the rotating part 32 and the connecting part 311 forms a connecting ear 3112. The connecting ear 3112 is configured to engage with the limiting step 324 to restrict the movement of the spray arm body 31 away from the first water outlet channel 203. By providing the matching limiting step 324 and connecting ear 3112 on the rotating part 32 and the connecting part 311 respectively, the spray arm body 31 and the rotating part 32 can be quickly connected and separated. When the spray arm body 31 is engaged with the limiting step 324 of the rotating part 32 by the connecting ear 3112, the connecting ear 3112 will engage with the limiting step 324 to restrict the movement of the spray arm body 31 in the height direction, thereby ensuring that the spray arm body 31 will not loosen or fall off when impacted by water flow from the mounting housing.

[0092] like Figure 10 and Figure 11As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the peripheral wall of the rotating part 32 forms a limiting step 324, the connecting part 311 includes a connecting shaft 3111 and a connecting ear 3112, the connecting shaft 3111 is connected to the liquid cavity 201 through the rotating part 32, the connecting ear 3112 includes a connecting arm 31121 and an abutting part 31122, one end of the connecting arm 31121 is connected to the outer peripheral wall of the connecting shaft 3111, and the other end of the connecting arm 31121 extends downward and connects to the abutting part 31122. The abutting part 31122 abuts against the bottom wall of the limiting step 324 to restrict the spray arm body 31 from moving away from the first water outlet channel 203. By adopting the above structure, when the spray arm body 31 is fastened to the limiting step 324 of the rotating part 32 via the connecting ear 3112, the abutting part 31122 will abut against the bottom wall of the limiting step 324 to restrict the movement of the spray arm body 31 in the height direction, thereby ensuring that the spray arm body 31 will not loosen or fall off when it is impacted by water flow from the mounting housing.

[0093] like Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting ear 3112 and the outer peripheral wall of the connecting shaft 3111 cooperate to form a limiting groove 302, and the end of the rotating part 32 away from the housing assembly 21 extends into the limiting groove 302 and abuts against the bottom wall of the limiting groove 302. By adopting the above structure, the abutment between the rotating part 32 and the bottom wall of the limiting groove 302 can provide stable support for the installation of the spray arm body 31.

[0094] like Figure 10 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting shaft 3111 is inserted into the rotating part 32, and the connecting part 311 also includes a fourth sealing ring 3113. The fourth sealing ring 3113 is sleeved on the outer peripheral wall of the connecting shaft 3111 and is used to seal the connection gap between the connecting shaft 3111 and the rotating part 32. By providing the fourth sealing ring 3113, a good seal can be achieved between the connecting shaft 3111 and the rotating part 32, effectively preventing liquid entering the rotating part 32 from leaking through the connection gap.

[0095] like Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: one of the connecting shaft 3111 and the rotating part 32 is provided with a rib 3114, and the other of the connecting shaft 3111 and the rotating part 32 is provided with a groove 303, and the rib 3114 is adapted to be installed in the groove 303. By adopting the above structure, the cooperation between the rib 3114 and the groove 303 can restrict the rotation of the spray arm body 31, prevent the spray arm body 31 from rotating due to the reaction force of the water, and ensure that the spray arm body 31 and the rotating part 32 rotate synchronously.

[0096] like Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of slots 303 is at least two, the at least two slots 303 are arranged at intervals along the circumference of the rotating part 32, and the number of ribs 3114 is consistent with the number of slots 303 and is arranged in a one-to-one correspondence.

[0097] like Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of connecting ears 3112 is at least two, the at least two connecting ears 3112 are arranged at intervals along the circumference of the rotating part 32, and are alternately distributed with at least two protruding ribs 3114.

[0098] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dishwashing device, characterized in that, include: The inner liner (1) has a first mounting port (101) on its bottom wall; A flow guiding device (2) includes a housing assembly (21) and a valve (22). At least a portion of the housing assembly (21) is disposed on the outer side of the bottom of the inner liner (1). The housing assembly (21) is provided with a liquid passage chamber (201) and an inlet (202), a first outlet channel (203), and a second outlet channel (204) respectively connected to the liquid passage chamber (201). The valve (22) is rotatably disposed in the liquid passage chamber (201). The valve (22) is configured to adjust the liquid flow ratio from the liquid passage chamber (201) to the first outlet channel (203) and the second outlet channel (204) respectively. The lower spray arm assembly (3) includes a spray arm body (31) and a rotating part (32). The spray arm body (31) is disposed in the inner liner (1). The rotating part (32) is rotatably disposed on the housing assembly (21). The water inlet end of the rotating part (32) is connected to the liquid passage (201) through the first water outlet channel (203). The water outlet end of the rotating part (32) extends into the inner liner (1) through the first mounting port (101) and is connected to the spray arm body (31). A drive device (4) is disposed on the housing assembly (21) and is drivenly connected to the rotating part (32) so that the lower spray arm assembly (3) can rotate relative to the inner liner (1).

2. The dishwasher according to claim 1, characterized in that, The liquid passage chamber (201) is cylindrical. The peripheral wall of the liquid passage chamber (201) is provided with a first liquid passage port (205) connecting the first water outlet channel (203) and a second liquid passage port (206) connecting the second water outlet channel (204). The valve (22) is arc-shaped and is configured to slide against the peripheral wall of the liquid passage chamber (201) when rotated, so as to adjust the conduction area of ​​the first liquid passage port (205) and the second liquid passage port (206) respectively.

3. The dishwasher according to claim 2, characterized in that, The flow guiding device (2) further includes a second drive motor (23). The housing assembly (21) is provided with a second mounting port (207) communicating with the liquid passage chamber (201). The second mounting port (207) is coaxially arranged with the liquid passage chamber (201). The second drive motor (23) is adapted to be installed with the second mounting port (207). The output end of the second drive motor (23) extends into the liquid passage chamber (201) and is driven and connected to the valve (22).

4. The dishwasher according to claim 1, characterized in that, The rotating part (32) includes a rotating shaft body (321) and a limiting part (322). The limiting part (322) is disposed on the outer side wall of the rotating shaft body (321). The housing assembly (21) includes a mounting body (211) and a connecting cover plate (212). The connecting cover plate (212) is detachably disposed on the outer side of the mounting body (211). The mounting body (211) is provided with the liquid passage chamber (201), the water inlet (202), and the first water outlet channel (203). The connecting cover plate (212) The rotating shaft body (321) is provided with a through hole opposite to the outlet (2031) of the first water outlet channel (203). The rotating shaft body (321) is rotatably disposed at the outlet (2031). The inlet end of the rotating shaft body (321) is connected to the liquid passage (201) through the first water outlet channel (203). The outlet end of the rotating shaft body (321) passes through the first mounting port (101) and the through hole and is connected to the spray arm body (31). The top wall of the limiting part (322) abuts against the connecting cover plate (212).

5. The dishwasher according to claim 4, characterized in that, The bottom wall of the inner liner (1) is sandwiched between the connecting cover plate (212) and the mounting body (211); and / or It also includes a second sealing ring (5), which is used to seal the connection gap between the bottom wall of the inner liner (1) and the mounting body (211) and / or the connecting cover plate (212); and / or The mounting body (211) is provided with a third connecting hole (208), and the connecting cover plate (212) is provided with a fourth connecting hole (209). The third connecting hole (208) and the fourth connecting hole (209) are connected to the mounting body (211) and the connecting cover plate (212) by fasteners; and / or The connecting cover plate (212) and the mounting body (211) enclose each other to form the second water outlet channel (204), and the connecting cover plate (212) has the water outlet end of the second water outlet channel (204), which is located in the inner liner (1).

6. The dishwasher according to claim 1, characterized in that, The housing assembly (21) has a mounting platform (2111) on the side near the inner liner (1). The mounting platform (2111) has an outlet (2031) of the first water outlet channel (203). The rotating part (32) is rotatably disposed at the outlet (2031). The driving device (4) includes a first driving motor (41) and a gear assembly (42). The gear assembly (42) is rotatably disposed on the mounting platform (2111). The input end of the gear assembly (42) is connected to the output shaft of the first driving motor (41). A rack (323) is formed on the outer peripheral wall of the rotating part (32). The rack (323) extends along the rotation direction of the rotating part (32) and meshes with the output end of the gear assembly (42).

7. The dishwasher according to claim 6, characterized in that, The rotating part (32) has an annular groove (301) on the side away from the mounting port, and the mounting platform (2111) has a limiting ring (21111) on the side near the inner liner (1). The inner wall of the limiting ring (21111) forms the outlet (2031) of the first water outlet channel (203). The limiting ring (21111) is adapted to the annular groove (301); and / or The mounting platform (2111) is provided with a shaft hole (210). The first drive motor (41) is located on the side of the mounting platform (2111) away from the inner liner (1). The output shaft of the first drive motor (41) passes through the shaft hole (210) and is connected to the input end of the gear assembly (42). The drive device (4) also includes a third sealing ring (43). The third sealing ring (43) is sleeved on the output shaft of the first drive motor (41). The third sealing ring (43) is used to seal the gap between the output shaft of the first drive motor (41) and the shaft hole (210); and / or The mounting platform (2111) is provided with a connecting column (2112), which is used to fix the first drive motor (41).

8. The dishwasher according to claim 6, characterized in that, It also includes a position detection component (6), which is used to obtain the rotational position of the lower spray arm assembly (3).

9. The dishwasher according to claim 8, characterized in that, The position detection component (6) includes a first detection ring (61) and a tactile switch (62). The first detection ring (61) is sleeved on the outside of the output shaft of the first drive motor (41). The outer peripheral wall of the first detection ring (61) has protrusions forming multiple detection contacts for triggering the tactile switch (62). The multiple detection contacts are spaced apart along the rotation direction of the output shaft of the first drive motor (41), and the stroke between any detection contact and two adjacent detection contacts is different; or The position detection component (6) includes a second detection ring (63) and an optocoupler (64). The second detection ring (63) is sleeved on the outside of the output shaft of the first drive motor (41). The outer peripheral wall of the second detection ring (63) has a plurality of protrusions and a plurality of notches. The plurality of protrusions and the plurality of notches are alternately distributed along the rotation direction of the output shaft of the first drive motor (41). The plurality of protrusions are used to block the light emitted by the optocoupler (64), and the plurality of notches are used to allow the light emitted by the optocoupler (64) to pass through. The widths of at least two of the protrusions are different and / or the widths of at least two of the notches are different.

10. The dishwasher according to any one of claims 1 to 9, characterized in that, The spray arm body (31) and the rotating part (32) are integrally formed; or The spray arm body (31) and the rotating part (32) are connected by at least one of the following methods: snap fastener, thread, or bolt.

Images