Cleaning device

Abstract

The utility model relates to a cleaning device which comprises an inner container, an outer container and a cleaning device. The shell assembly is arranged on the outer side of the bottom of the inner container and provided with a liquid passing cavity, a water inlet and a water outlet, and the water inlet and the water outlet are communicated with the liquid passing cavity; the rotating part is rotatably arranged at the water outlet, and the end, away from the water outlet, of the rotating part extends into the inner container through the mounting opening; the driving device is in driving connection with the rotating part; a connecting part connected with the rotating part is formed at the bottom of the lower spraying arm, the lower spraying arm is communicated with the liquid passing cavity through the rotating part, and the lower spraying arm is configured to be capable of rotating relative to the inner container under the driving of the rotating part. By the adoption of the cleaning device, on the premise that the requirement for electrically driving the lower spraying arm is met, a user can conveniently disassemble the lower spraying arm by himself / herself, when the user needs to disassemble the lower spraying arm, the lower spraying arm can be directly separated from the rotating part, or the lower spraying arm can be disassembled by disassembling the shell assembly to enable the rotating part to be exposed, and therefore the use experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic appliance technical field, in particular to a kind of cleaning device. BACKGROUND

[0002] The lower spray arm of the dish washer in the domestic market is mainly divided into two driving modes, one is to use the reaction force of water to spin the lower spray arm to clean tableware, and the other is to use electric drive to realize fast rotation spray washing. The advantage of using electric drive lower spray arm is that the rotation of the lower spray arm can be controlled by the driving motor, thereby improving the overall washing performance. However, the electric drive lower spray arm on the market is difficult for users to disassemble to improve the air tightness of the device and prevent water from entering the motor. If the spray arm hole is blocked, the user cannot clean it himself, which makes maintenance difficult. Therefore, most dishwashers still use the first driving mode, which has poor washing efficiency and cannot meet the cleaning requirements of users. SUMMARY

[0003] Therefore, it is necessary to provide a cleaning device to solve the problem that the electric drive lower spray arm on the market cannot be disassembled by the user, which makes maintenance difficult.

[0004] A cleaning device comprises an inner container, a bottom wall of the inner container is provided with a mounting port; a shell assembly is at least partially disposed outside the bottom of the inner container, the shell assembly is provided with a liquid passing cavity and a water inlet and a water outlet communicating with the liquid passing cavity; a rotating part is rotatably disposed at the water outlet, one end of the rotating part away from the water outlet extends into the inner container through the mounting port; a driving device is disposed on the shell assembly, the driving device is drivingly connected with the rotating part; a lower spray arm is located in the inner container, a bottom of the lower spray arm forms a connecting part, the connecting part is connected with the rotating part, the lower spray arm communicates with the liquid passing cavity through the rotating part, and the lower spray arm is configured to rotate relative to the inner container under the driving of the rotating part.

[0005] The present application provides a cleaning device, a rotating part is provided on the shell assembly for connecting with the lower spray arm located inside the inner container, and a driving device is also provided on the shell assembly, the driving device can drive the rotating part to rotate, thereby controlling the rotation of the lower spray arm by the driving motor and improving the overall washing performance. When the user needs to disassemble and clean the lower spray arm, the lower spray arm can be separated from the rotating part, or the rotating part can be exposed by disassembling the shell assembly to realize the disassembly of the lower spray arm. The cleaning device of the present application can facilitate the user to disassemble the lower spray arm under the premise of meeting the electric drive lower spray arm, thereby improving the user's experience and reducing maintenance cost.

[0006] In one embodiment, a mounting platform is formed on the side of the housing assembly near the inner liner. The mounting platform has the water outlet. The driving device includes a drive motor and a gear assembly. The gear assembly is rotatably mounted on the mounting platform. The input end of the gear assembly is drively connected to the output shaft of the 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 drive motor is fixedly equipped with the gear assembly, and the other end of the gear assembly is simultaneously meshed with the rack on the outer wall of the rotating part. Thus, when the drive motor drives the gear assembly to rotate, the gear assembly will cooperate with the rack, driving the rotating part and the lower spray arm 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 drive motor and the rotating part.

[0007] 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 outlet is formed on the inner wall of the limiting ring, and the limiting ring is fitted into the annular groove. By adopting the above structure, the rotation of the rotating part can be limited by the cooperation of the annular groove and the limiting ring without affecting the rotation of the rotating part. This helps to quickly position and install the rotating part, ensures that the rack of the rotating part can smoothly mesh with the gear assembly, and when the rotating part is inserted into the outlet, the limiting ring is simultaneously fitted into the annular groove at the bottom of the rotating part, which improves the sealing at the connection between the rotating part and the outlet, preventing liquid in the housing assembly from leaking out through the connection.

[0008] In one embodiment, the mounting platform has a shaft hole, and the drive motor is located on the side of the mounting platform away from the inner liner. The output shaft of the drive motor passes through the shaft hole and is connected to the input end of the gear assembly. The drive device also includes a first sealing ring, which is sleeved on the output shaft of the drive motor and is used to seal the gap between the output shaft of the drive motor and the shaft hole. By adopting the above structure, the drive motor is located on the side of the mounting platform away from the inner liner. This achieves a reasonable arrangement of the drive motor, which helps to shorten the distance between the outlet 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 drive motor, reducing the possibility of water entering the drive motor. Furthermore, the gap between the output shaft of the drive motor and the shaft hole of the mounting platform is well sealed by the first sealing ring. This structure ensures that the drive motor can drive the gear assembly to rotate on the mounting platform to achieve transmission of the rotating part, and effectively prevents leakage, thereby improving the rotation efficiency and safety of the lower spray arm.

[0009] In one embodiment, the mounting platform is provided with a connecting post for fixing the drive motor. The connecting post allows for more flexible installation of the drive motor, ensuring a stable fit between the drive motor output shaft and the mounting platform's shaft hole, preventing it from easily coming loose.

[0010] 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 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.

[0011] In one embodiment, a positioning shaft is further included, which is disposed on the mounting platform, and the output gear is rotatably connected to the mounting platform via the positioning shaft.

[0012] 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 has the liquid passage chamber, the water inlet, and the water outlet. The connecting cover plate has a through hole opposite to the water outlet. The rotating shaft body is rotatably disposed at the water outlet and communicates with the liquid passage chamber. One end of the rotating shaft body away from the water outlet passes through the mounting port and the through hole and connects to the lower spray arm. The top wall of the limiting part abuts against the connecting cover plate. By providing a detachably connected mounting body and connecting cover plate, when the rotating shaft body is installed at the water outlet on the mounting body, the limiting part on the outer wall of the rotating shaft body can be limited by the cooperation of the connecting cover plate and the mounting body. The abutment between the top of the connecting cover plate and the limiting part restricts the movement of the spray arm in the height direction, thereby ensuring that the lower spray arm will not loosen or fall off when impacted by water flow from the mounting housing.

[0013] In one embodiment, the limiting part is annular and is sleeved on the outside of the rotating shaft body.

[0014] In one embodiment, the rack is disposed on the outer peripheral wall of the rotating shaft body or the limiting part.

[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 first connecting hole, and the connecting cover plate has a second connecting hole. The first connecting hole and the second 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 lower spray arm 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, the rotating part can be exposed by removing the connecting cover to remove the lower spray arm.

[0019] In one embodiment, the connecting shaft is connected to the rotating part by at least one of snap-fit, thread, or bolt.

[0020] In one embodiment, the connecting cover includes a first plate and a second plate, which are detachably disposed on the outer side of the mounting body. The first plate and the second plate cooperate to form the through hole. This allows for quick assembly and disassembly between the lower spray arm and the rotating part, providing convenience for users to clean and maintain the lower spray arm, thereby improving the user experience and reducing maintenance costs.

[0021] 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 lug is formed on the other of the rotating part and the connecting part. The connecting lug is configured to engage with the limiting step to restrict the lower spray arm from moving away from the water outlet. By providing matching limiting steps and connecting lugs on the rotating part and the connecting part respectively, quick connection and separation of the lower spray arm and the rotating part can be achieved. When the lower spray arm is engaged with the limiting step of the rotating part by the connecting lug, the connecting lug will abut against the limiting step to restrict the movement of the lower spray arm in the height direction, thereby ensuring that the lower spray arm will not loosen or fall off when impacted by water flow from the mounting housing.

[0022] 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 lower spray arm from moving away from the water outlet. By adopting the above structure, when the lower spray arm 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 in the height direction, thereby ensuring that the lower spray arm will not loosen or fall off when impacted by water flow from the mounting housing.

[0023] 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 lower spray arm.

[0024] In one embodiment, the connecting shaft is inserted into the rotating part, and the connecting part further includes a third sealing ring, which is sleeved on the outer peripheral wall of the connecting shaft and seals the connection gap between the connecting shaft and the rotating part. The third 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.

[0025] 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 groove, with the raised rib fitting into the groove. By adopting the above structure, the cooperation between the raised rib and the groove can restrict the rotation of the lower spray arm, preventing the lower spray arm from rotating due to the reaction force of the water, and ensuring that the lower spray arm and the rotating part rotate synchronously.

[0026] 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.

[0027] In one embodiment, the rib includes a first rib and a second rib, and the slot includes a first slot and a second slot. The first rib and the second rib are respectively adapted to the first slot and the second slot. The geometry or size of the first rib is different from that of the second rib.

[0028] 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.

[0029] In one embodiment, a position detection component is further included to obtain the rotational position of the lower spray arm. By detecting the rotational position of the lower spray arm, the drive motor can be conveniently used to achieve precise control of the forward and reverse rotation of the lower spray arm, thereby better achieving enhanced washing of specific areas.

[0030] 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 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 drive motor output shaft, and the stroke between any one detection contact and its two adjacent detection contacts is different. With this structure, when the drive motor output shaft rotates, it drives the first detection ring to rotate synchronously relative to the tactile switch. When a detection contact on the first detection ring touches the detection end of the tactile switch, the tactile switch is triggered. Therefore, the two detection contacts corresponding to the stroke can be determined by the time values ​​of two consecutive triggers, and the rotational position of the corresponding drive motor output shaft and the lower spray arm can be further analyzed and obtained.

[0031] 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 drive motor. Multiple protrusions are formed on the outer peripheral wall of the second detection ring, spaced apart along the rotation direction of the drive motor output shaft. The stroke between any two adjacent protrusions is different. The protrusions block the light emitted by the optocoupler. By using the optocoupler to emit and receive light, the rotation of the drive motor output shaft causes the second detection ring to rotate synchronously relative to the optocoupler. When a protrusion on the second detection ring rotates to the detection position of the optocoupler, the light is blocked, triggering the optocoupler to generate a signal and record it. Therefore, by judging the time values ​​of two consecutive triggers, the two protrusions corresponding to the stroke can be determined, and the rotational positions of the corresponding drive motor output shaft and the lower spray arm can be further analyzed and obtained. Attached Figure Description

[0032] Figure 1 An exploded view of a cleaning apparatus according to one embodiment;

[0033] Figure 2 A partial structural diagram of a cleaning apparatus according to one embodiment;

[0034] Figure 3This is a first mounting diagram of the housing assembly and the rotating part according to one embodiment;

[0035] Figure 4 This is a second mounting diagram of the housing assembly and the rotating part according to one embodiment;

[0036] Figure 5 This is a first mounting diagram of the drive device and the rotating part according to one embodiment;

[0037] Figure 6 This is a second mounting diagram of the drive device and the rotating part according to one embodiment;

[0038] Figure 7 This is a first installation schematic diagram of the lower spray arm and the rotating part according to one embodiment;

[0039] Figure 8 This is a second installation diagram of the lower spray arm and rotating part according to one embodiment.

[0040] The correspondence between the reference numerals and the component names is as follows:

[0041] 1 inner liner, 101 mounting port;

[0042] 2. Housing assembly, 201 liquid passage chamber, 202 water inlet, 203 water outlet, 204 shaft hole, 205 through hole, 206 first connecting hole, 207 second connecting hole, 21 mounting body, 211 mounting platform, 2111 limiting ring, 212 connecting column, 213 positioning shaft, 22 connecting cover plate;

[0043] 3 Rotating part, 301 Annular groove, 302 Slot, 31 Rotating shaft body, 32 Limiting part, 33 Rack, 34 Limiting step;

[0044] 4. Drive unit, 41. Drive motor, 42. Gear assembly, 421. Input gear, 422. Output gear, 43. First sealing ring;

[0045] 5 Lower spray arm, 501 Limiting groove, 51 Connecting part, 511 Connecting shaft, 512 Connecting ear, 5121 Connecting arm, 5122 Abutting part, 513 Third sealing ring, 514 Raised rib;

[0046] 6. Second sealing ring;

[0047] 7-position detection component. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] The cleaning apparatus of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0051] like Figures 1 to 8 As shown, this embodiment discloses a cleaning device, including: an inner tank 1, with an installation port 101 on the bottom wall of the inner tank 1; a shell assembly 2, at least partially disposed on the outer side of the bottom of the inner tank 1, the shell assembly 2 having a liquid passage chamber 201 and an inlet 202 and an outlet 203 connected to the liquid passage chamber 201; a rotating part 3, rotatably disposed at the outlet 203, with one end of the rotating part 3 away from the outlet 203 extending into the inner tank 1 through the installation port 101; a driving device 4, disposed on the shell assembly 2, and drivingly connected to the rotating part 3; and a lower spray arm 5, located in the inner tank 1, with a connecting part 51 formed at the bottom of the lower spray arm 5, the connecting part 51 being connected to the rotating part 3, the lower spray arm 5 being connected to the liquid passage chamber 201 through the rotating part 3, and the lower spray arm 5 being configured to rotate relative to the inner tank 1 under the drive of the rotating part 3.

[0052] This application provides a cleaning device. A rotating part 3 on the housing assembly 2 connects to a lower spray arm 5 located inside the inner tank 1. A drive device 4 is also provided on the housing assembly 2, which drives the rotating part 3 to rotate. Thus, the rotation of the lower spray arm 5 can be controlled by a drive motor 41, improving overall washing performance. When the user needs to disassemble the lower spray arm 5 for cleaning and maintenance, the lower spray arm 5 can be directly separated from the rotating part 3, or the rotating part 3 can be exposed by disassembling the housing assembly 2 to remove the lower spray arm 5. Using the cleaning device of this application, the lower spray arm 5 can be electrically driven while also facilitating user self-disassembly, thereby improving the user experience and reducing maintenance costs.

[0053] like Figures 3 to 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a mounting platform 211 is formed on the side of the shell assembly 2 near the inner liner 1, the mounting platform 211 is provided with a water outlet 203, the drive device 4 includes a drive motor 41 and a gear assembly 42, the gear assembly 42 is rotatably mounted on the mounting platform 211, the input end of the gear assembly 42 is connected to the output shaft of the drive motor 41, and a rack 33 is formed on the outer peripheral wall of the rotating part 3, the rack 33 extends along the rotation direction of the rotating part 3 and meshes with the output end of the gear assembly 42. By adopting the above structure, the output shaft of the drive motor 41 is fixedly mounted with the gear assembly 42, and the other end of the gear assembly 42 is simultaneously connected to the rack 33 on the outer wall of the rotating part 3, so that when the drive motor 41 drives the gear assembly 42 to rotate, the gear assembly 42 will cooperate with the rack 33 to drive the rotating part 3 and the lower spray arm 5 to rotate around its axis. The gear transmission structure is compact and suitable for short-distance transmission and adjustment of rotation direction, which can greatly facilitate designers to reasonably arrange the installation of the drive motor 41 and the rotating part 3.

[0054] like Figure 4 and Figure 6 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 3 away from the mounting port 101, a limiting ring 2111 is formed on the side of the mounting platform 211 near the inner liner 1, and a water outlet 203 is formed on the inner wall of the limiting ring 2111. The limiting ring 2111 is adapted to the annular groove 301 for installation. By adopting the above structure, without affecting the rotation of the rotating part 3, the cooperation of the annular groove 301 and the limiting ring 2111 can limit the rotation of the rotating part 3, which can help the rotating part 3 to be quickly positioned and installed, ensure that the rack 33 of the rotating part 3 can be smoothly engaged with the gear assembly 42, and when the rotating part 3 is inserted into the water outlet 203, the limiting ring 2111 is simultaneously adapted to the annular groove 301 at the bottom of the rotating part 3, which can improve the sealing of the connection between the rotating part 3 and the water outlet 203 and prevent the liquid in the housing assembly 2 from leaking out through the connection.

[0055] like Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting platform 211 is provided with a shaft hole 204, the drive motor 41 is disposed on the side of the mounting platform 211 away from the inner liner 1, the output shaft of the drive motor 41 passes through the shaft hole 204 and is connected to the input end of the gear assembly 42 for transmission, and the drive device 4 also includes a first sealing ring 43, which is sleeved on the output shaft of the drive motor 41 and is used to seal the gap between the output shaft of the drive motor 41 and the shaft hole 204. By adopting the above structure, the drive motor 41 is set on the side of the mounting platform 211 away from the inner tank 1. On the one hand, this achieves a reasonable arrangement of the drive motor 41, which helps to shorten the distance between the water outlet 203 and the mounting port 101 and reduce the length of the rotating part 3. On the other hand, the mounting platform 211 can separate the inner tank 1 and the drive motor 41, reducing the possibility of water entering the drive motor 41. Furthermore, the gap between the output shaft of the drive motor 41 and the shaft hole 204 of the mounting platform 211 is well sealed by the first sealing ring 43. Through this structure, it is ensured that the drive motor 41 can drive the gear assembly 42 to rotate on the mounting platform 211 to realize the transmission of the rotating part 3, and it can also effectively prevent leakage, thereby improving the rotation efficiency and safety of the lower spray arm 5.

[0056] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a connecting post 212 is provided on the mounting platform 211, and the connecting post 212 is used to fix the drive motor 41. The use of the connecting post 212 makes the installation of the drive motor 41 more flexible, and ensures that the output shaft of the drive motor 41 can be stably positioned and not easily loosened when assembled with the shaft hole 204 of the mounting platform 211.

[0057] like Figure 5 and Figure 6 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 211. The input gear 421 is sleeved on the output shaft of the 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 33. The gear transmission structure is compact, suitable for short-distance transmission, has high transmission efficiency, reliable operation, and long service life.

[0058] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further includes a positioning shaft 213, which is disposed on the mounting platform 211, and the output gear 422 is rotatably connected to the mounting platform 211 through the positioning shaft 213.

[0059] like Figures 3 to 5As shown, in addition to the features of the above embodiments, this embodiment further defines: the rotating part 3 includes a rotating shaft body 31 and a limiting part 32. The limiting part 32 is disposed on the outer side wall of the rotating shaft body 31. The housing assembly 2 includes a mounting body 21 and a connecting cover plate 22. The connecting cover plate 22 is detachably disposed on the outer side of the mounting body 21. The mounting body 21 is provided with a liquid passage chamber 201, a water inlet 202 and a water outlet 203. The connecting cover plate 22 is provided with a through hole 205 opposite to the water outlet 203. The rotating shaft body 31 is rotatably disposed at the water outlet 203 and connected to the liquid passage chamber 201. One end of the rotating shaft body 31 away from the water outlet 203 passes through the mounting port 101 and the through hole 205 and is connected to the lower spray arm 5. The top wall of the limiting part 32 abuts against the connecting cover plate 22. By setting a detachable mounting body 21 and a connecting cover 22, when the rotating shaft body 31 is installed on the water outlet 203 on the mounting body 21, the connecting cover 22 and the mounting body 21 can be used to limit the limiting part 32 on the outer wall of the rotating shaft body 31. The top of the connecting cover 22 and the limiting part 32 abut against each other to restrict the movement of the spray arm in the height direction, so that when the spray arm 5 is impacted by the water flow from the mounting housing, it can be ensured that it will not loosen and fall off.

[0060] In addition to the features of the above embodiments, this embodiment further specifies that: the limiting part 32 is annular and is sleeved on the outside of the rotating shaft body 31.

[0061] In addition to the features of the above embodiments, this embodiment further specifies that the rack 33 is disposed on the outer peripheral wall of the rotating shaft body 31 or the limiting part 32.

[0062] like Figure 1 and Figure 5 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 22 and the mounting body 21. By adopting the above structure, the cooperation between the connecting cover plate 22 and the mounting body 21 allows the shell assembly 2 to be stably installed at the bottom of the inner liner 1, and the mounting body 21 and the connecting cover plate 22 are detachably connected, which can facilitate disassembly and cleaning for users.

[0063] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further includes a second sealing ring 6, which is used to seal the connection gap between the bottom wall of the inner liner 1 and the mounting body 21 and / or the connecting cover plate 22. By providing the second sealing ring 6, a good seal can be achieved between the connection gap between the bottom wall of the inner liner 1 and the mounting body 21 and / or the connecting cover plate 22, effectively preventing liquid in the inner liner 1 from leaking through the mounting port 101.

[0064] like Figure 5As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the mounting body 21 is provided with a first connecting hole 206, and the connecting cover plate 22 is provided with a second connecting hole 207. The first connecting hole 206 and the second connecting hole 207 are connected to the mounting body 21 and the connecting cover plate 22 by fasteners. By adopting the above connection structure, the assembly and disassembly of the connecting cover plate 22 and the mounting body 21 can be facilitated. The fasteners can generate a large dispersion force with the hole wall, thereby making the connection part 51 more stable and tight, which is beneficial to the sealing connection of the connecting cover plate 22, the bottom wall of the inner liner 1 and the mounting body 21.

[0065] In addition to the features of the above embodiments, this embodiment further specifies that the lower spray arm 5 and the rotating part 3 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 5, the rotating part 3 can be exposed by removing the connecting cover plate 22 to remove the lower spray arm 5.

[0066] In addition to the features of the above embodiments, this embodiment further specifies that the connecting shaft 511 and the rotating part 3 are connected by at least one of snap fasteners, threads, or bolts.

[0067] In addition to the features of the above embodiments, this embodiment further specifies that: the connecting cover plate 22 includes a first plate and a second plate, which are detachably disposed on the outside of the mounting body 21, and the first plate and the second plate cooperate to form a through hole 205. This enables quick assembly and disassembly between the lower spray arm 5 and the rotating part 3, providing convenience for users to clean and maintain the lower spray arm 5, thereby improving the user experience and reducing maintenance costs.

[0068] like Figure 7 and Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: a limiting step 34 is formed by a protrusion on the outer peripheral wall of one of the rotating part 3 and the connecting part 51, and a connecting ear 512 is formed on the other of the rotating part 3 and the connecting part 51. The connecting ear 512 is configured to engage with the limiting step 34 to restrict the lower spray arm 5 from moving away from the outlet 203. By providing the matching limiting step 34 and connecting ear 512 on the rotating part 3 and the connecting part 51 respectively, the lower spray arm 5 and the rotating part 3 can be quickly connected and separated. When the lower spray arm 5 is engaged with the limiting step 34 of the rotating part 3 by the connecting ear 512, the connecting ear 512 will engage with the limiting step 34 to restrict the movement of the lower spray arm 5 in the height direction, thereby ensuring that the lower spray arm 5 will not loosen or fall off when it is impacted by water flow from the mounting housing.

[0069] like Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the peripheral wall of the rotating part 3 forms a limiting step 34; the connecting part 51 includes a connecting shaft 511 and a connecting ear 512; the connecting shaft 511 is connected to the liquid cavity 201 through the rotating part 3; the connecting ear 512 includes a connecting arm 5121 and an abutment part 5122; one end of the connecting arm 5121 is connected to the outer peripheral wall of the connecting shaft 511; the other end of the connecting arm 5121 extends downward and connects to the abutment part 5122; the abutment part 5122 abuts against the bottom wall of the limiting step 34 to restrict the lower spray arm 5 from moving away from the outlet 203. By adopting the above structure, when the lower spray arm 5 is fastened to the limiting step 34 of the rotating part 3 by the connecting ear 512, the abutment part 5122 will abut against the bottom wall of the limiting step 34 to restrict the movement of the spray arm in the height direction, thereby ensuring that the lower spray arm 5 will not loosen or fall off when impacted by water flow from the mounting housing.

[0070] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting ear 512 and the outer peripheral wall of the connecting shaft 511 cooperate to form a limiting groove 501, and the end of the rotating part 3 away from the housing assembly 2 extends into the limiting groove 501 and abuts against the bottom wall of the limiting groove 501. By adopting the above structure, the abutment between the rotating part 3 and the bottom wall of the limiting groove 501 can provide stable support for the installation of the lower spray arm 5.

[0071] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the connecting shaft 511 is inserted into the rotating part 3, and the connecting part 51 also includes a third sealing ring 513. The third sealing ring 513 is sleeved on the outer peripheral wall of the connecting shaft 511, and the third sealing ring 513 seals the connection gap between the connecting shaft 511 and the rotating part 3. By providing the third sealing ring 513, a good seal can be achieved between the connecting shaft 511 and the rotating part 3, effectively preventing liquid entering the rotating part 3 from leaking through the connection gap between them.

[0072] like Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: one of the connecting shaft 511 and the rotating part 3 is provided with a protruding rib 514, and the other of the connecting shaft 511 and the rotating part 3 is provided with a slot 302, with the protruding rib 514 and the slot 302 being fitted together. By adopting the above structure, the cooperation between the protruding rib 514 and the slot 302 can restrict the rotation of the lower spray arm 5, preventing the lower spray arm 5 from rotating due to the reaction force of the water, and ensuring that the lower spray arm 5 and the rotating part 3 rotate synchronously.

[0073] like Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of slots 302 is at least two, the at least two slots 302 are arranged at intervals along the circumference of the rotating part 3, and the number of ribs 514 is consistent with the number of slots 302 and is arranged in a one-to-one correspondence.

[0074] like Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the rib 514 includes a first rib and a second rib, the slot 302 includes a first slot and a second slot, the first rib and the second rib are respectively adapted to be installed in the first slot and the second slot, and the geometry or size of the first rib is different from the geometry or size of the second rib.

[0075] like Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of connecting ears 512 is at least two, the at least two connecting ears 512 are arranged at intervals along the circumference of the rotating part 3, and are alternately distributed with at least two protruding ribs 514.

[0076] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further includes a position detection component 7, which is used to obtain the rotational position of the lower spray arm 5. By detecting and knowing the rotational position of the lower spray arm 5, the drive motor 41 can be conveniently used to achieve precise control of the forward and reverse rotation of the lower spray arm 5, so as to better achieve enhanced washing of specific areas.

[0077] In addition to the features of the above embodiments, this embodiment further specifies that: the position detection component 7 includes a first detection ring and a tactile switch. The first detection ring is sleeved on the outside of the output shaft of the drive motor 41. 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 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 drive motor 41 rotates, it will drive the first detection ring to rotate synchronously with respect to the tactile switch. When the detection contact on the first detection ring touches 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 rotation position of the corresponding output shaft of the drive motor 41 and the lower spray arm 5 can be further analyzed and obtained.

[0078] In addition to the features of the above embodiments, this embodiment further specifies that: the position detection component 7 includes a second detection ring and an optocoupler. The second detection ring is sleeved on the outside of the output shaft of the drive motor 41. The outer peripheral wall of the second detection ring has multiple protrusions, which are spaced apart along the rotation direction of the output shaft of the drive motor 41. The stroke between any protrusion and two adjacent protrusions is different. The multiple protrusions are used to block the light emitted by the optocoupler. By setting the optocoupler to emit and receive light sources, when the output shaft of the drive motor 41 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, triggering the optocoupler to generate a signal and record it. Thus, by judging the time value of two consecutive triggers, the two protrusions with corresponding strokes can be determined, and the rotation position of the corresponding output shaft of the drive motor 41 and the lower spray arm 5 can be further analyzed and obtained.

[0079] 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.

[0080] 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 cleaning device, characterized in that, include: Inner liner (1), the bottom wall of the inner liner (1) is provided with an installation port (101); The shell assembly (2) is at least partially disposed on the outer side of the bottom of the inner liner (1). The shell assembly (2) is provided with a liquid passage chamber (201) and an inlet (202) and an outlet (203) communicating with the liquid passage chamber (201). Rotating part (3), the rotating part (3) is rotatably disposed at the water outlet (203), and one end of the rotating part (3) away from the water outlet (203) extends into the inner tank (1) through the mounting port (101); A drive device (4) is disposed on the housing assembly (2) and is drivenly connected to the rotating part (3); The lower spray arm (5) is located in the inner liner (1). A connecting part (51) is formed at the bottom of the lower spray arm (5). The connecting part (51) is connected to the rotating part (3). The lower spray arm (5) is connected to the liquid passage chamber (201) through the rotating part (3). The lower spray arm (5) is configured to rotate relative to the inner liner (1) under the drive of the rotating part (3).

2. The cleaning device according to claim 1, characterized in that, The housing assembly (2) has a mounting platform (211) on the side near the inner liner (1). The mounting platform (211) is provided with the water outlet (203). The drive device (4) includes a drive motor (41) and a gear assembly (42). The gear assembly (42) is rotatably mounted on the mounting platform (211). The input end of the gear assembly (42) is connected to the output shaft of the drive motor (41). The outer peripheral wall of the rotating part (3) is formed with a rack (33). The rack (33) extends along the rotation direction of the rotating part (3) and meshes with the output end of the gear assembly (42).

3. The cleaning device according to claim 2, characterized in that, The rotating part (3) has an annular groove (301) on the side away from the mounting port (101), and the mounting platform (211) has a limiting ring (2111) on the side near the inner liner (1). The water outlet (203) is formed on the inner wall of the limiting ring (2111), and the limiting ring (2111) is fitted and installed in accordance with the annular groove (301); and / or The mounting platform (211) is provided with a shaft hole (204). The drive motor (41) is located on the side of the mounting platform (211) away from the inner liner (1). The output shaft of the drive motor (41) passes through the shaft hole (204) and is connected to the input end of the gear assembly (42). The drive device (4) also includes a first sealing ring (43). The first sealing ring (43) is sleeved on the output shaft of the drive motor (41). The first sealing ring (43) is used to seal the gap between the output shaft of the drive motor (41) and the shaft hole (204); and / or The mounting platform (211) is provided with a connecting column (212), which is used to fix the drive motor (41); and / or The gear assembly (42) includes an input gear (421) and an output gear (422). The input gear (421) and the output gear (422) are respectively mounted on the mounting platform (211). The input gear (421) is sleeved on the output shaft of the drive motor (41). The input gear (421) and the output gear (422) are connected in a transmission manner. The output gear (422) meshes with the rack (33).

4. The cleaning device according to claim 1, characterized in that, The rotating part (3) includes a rotating shaft body (31) and a limiting part (32). The limiting part (32) is disposed on the outer side wall of the rotating shaft body (31). The housing assembly (2) includes a mounting body (21) and a connecting cover plate (22). The connecting cover plate (22) is detachably disposed on the outer side of the mounting body (21). The mounting body (21) is provided with the liquid passage chamber (201), the water inlet (202), and the water outlet (203). The connecting cover plate (22) is provided with a through hole (205) opposite to the water outlet (203). The rotating shaft body (31) is rotatably disposed at the water outlet (203) and connected to the liquid passage chamber (201). One end of the rotating shaft body (31) away from the water outlet (203) passes through the mounting port (101) and the through hole (205) and is connected to the lower spray arm (5). The top wall of the limiting part (32) abuts against the connecting cover plate (22).

5. The cleaning device according to claim 4, characterized in that, The bottom wall of the inner liner (1) is sandwiched between the connecting cover plate (22) and the mounting body (21); and / or It also includes a second sealing ring (6), which is used to seal the connection gap between the bottom wall of the inner liner (1) and the mounting body (21) and / or the connecting cover plate (22); and / or The mounting body (21) is provided with a first connecting hole (206), and the connecting cover plate (22) is provided with a second connecting hole (207). The first connecting hole (206) and the second connecting hole (207) are connected to the mounting body (21) and the connecting cover plate (22) by fasteners.

6. The cleaning apparatus according to claim 1, characterized in that, The lower spray arm (5) and the rotating part (3) are integrally formed.

7. The cleaning device according to claim 1, characterized in that, One of the rotating part (3) and the connecting part (51) has a protruding outer peripheral wall forming a limiting step (34), and the other of the rotating part (3) and the connecting part (51) has a connecting ear (512), which is configured to engage with the limiting step (34) to restrict the lower spray arm (5) from moving away from the outlet (203).

8. The cleaning apparatus according to claim 7, characterized in that, The peripheral wall of the rotating part (3) is formed with the limiting step (34). The connecting part (51) includes a connecting shaft (511) and a connecting ear (512). The connecting shaft (511) is connected to the liquid passage chamber (201) through the rotating part (3). The connecting ear (512) includes a connecting arm (5121) and an abutment part (5122). One end of the connecting arm (5121) is connected to the outer peripheral wall of the connecting shaft (511). The other end of the connecting arm (5121) extends downward and is connected to the abutment part (5122). The abutment part (5122) abuts against the bottom wall of the limiting step (34) to restrict the lower spray arm (5) from moving away from the water outlet (203).

9. The cleaning apparatus according to claim 8, characterized in that, The connecting lug (512) and the outer peripheral wall of the connecting shaft (511) cooperate to form a limiting groove (501), and one end of the rotating part (3) away from the housing assembly (2) extends into the limiting groove (501) and abuts against the bottom wall of the limiting groove (501); and / or The connecting shaft (511) is inserted into the rotating part (3). The connecting part (51) also includes a third sealing ring (513). The third sealing ring (513) is sleeved on the outer peripheral wall of the connecting shaft (511). The third sealing ring (513) seals the connection gap between the connecting shaft (511) and the rotating part (3); and / or One of the connecting shaft (511) and the rotating part (3) is provided with a rib (514), and the other of the connecting shaft (511) and the rotating part (3) is provided with a slot (302). The rib (514) is adapted to the slot (302) for installation.

10. The cleaning apparatus according to any one of claims 1 to 9, characterized in that, It also includes a position detection component (7), which is used to obtain the rotational position of the lower spray arm (5).

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