A dishwasher

Abstract

The present application relates to a kind of dishwashers, including box, front side is open;Rack, can be moved in and out of box front and back;Door body, can be rotatably arranged in the front side opening of box around the axis extending in left and right direction, to open or close box;Baffle, can be moved in and out of box front and back, in the state that door body is opened, the baffle is transversely arranged and located between rack and door body;Drive mechanism, including first transmission assembly, is connected with baffle to transmit power to baffle;Second transmission assembly, is connected with rack to transmit power to rack;Driving piece, is connected with the drive of first transmission assembly or second transmission assembly;Clutch structure, for connecting first transmission assembly and second transmission assembly, and can make first transmission assembly and second transmission assembly disconnect. Thus the oil stains and other kitchen waste dropped by the tableware placed in rack can be caught by baffle.

Description

Technical Field

[0001] This invention relates to a dishwasher. Background Technology

[0002] Currently, most dishwashers on the market generally consist of a cabinet and a spray system located within the cabinet. The spray system draws water from the bottom of the cabinet into a spray nozzle and sprays it into the washing chamber to rinse the dishes. The washing chamber volume of most dishwashers is fixed and cannot be adjusted according to the amount of dishes to be washed. When the number of dishes to be washed is small, placing them in a large washing chamber not only affects the washing effect but also wastes water.

[0003] In addition, for some large-capacity dishwashers, users are used to storing the dishes inside the dishwasher after washing. In this case, if the number of dishes used per meal is small, the stored dishes need to be washed together with the dishes the next time, which will also waste water and electricity.

[0004] To address the aforementioned issues, Chinese utility model patent CN202023348649.2 (publication number CN215383808U) discloses a dishwasher, comprising: a cabinet having an inner cavity; a partition assembly disposed within the inner cavity of the cabinet for dividing the inner cavity into relatively independent upper and lower spaces; the partition assembly includes: a fixed plate horizontally positioned in the middle of the cabinet and connected to the inner side wall of the cabinet; a movable plate movably disposed on the fixed plate for cooperating with the fixed plate to separate or connect the upper and lower spaces; further comprising: a surrounding plate disposed on the lower wall of the fixed plate, forming a relatively independent mounting compartment between the surrounding plate and the inner wall of the cabinet; and a drive mechanism disposed in the mounting compartment, with a power output shaft passing through the surrounding plate and connected to the movable plate.

[0005] When the number of dishes to be washed is small, the movable plate of the partition assembly moves relative to the fixed plate to separate the upper and lower spaces. The upper space can be used to store the washed dishes, while the lower space can be sprayed and washed separately, thus performing a "half-cavity wash" cleaning mode. This not only makes full use of the cabinet space but also helps to save energy such as water and electricity. When the number of dishes to be washed is large, the movable plate of the partition assembly moves relative to the fixed plate to connect the upper and lower spaces, washing the dishes in both spaces simultaneously, thus performing a "full-cavity wash" cleaning mode.

[0006] For side-opening dishwashers, the dish racks are pulled forward outside the cabinet to facilitate loading and unloading. The dish racks typically have a perforated structure made of several frame strips to allow water to drain. When soiled dishes are placed on the racks, grease and debris may leak out. With the door open, the racks are directly above the door, and grease and debris dripping from the racks will fall onto the door. When the door is closed, if the dishwasher is in a half-cavity wash mode, the upper space is easily contaminated by grease from the door. Furthermore, the door usually has an exhaust vent; grease dripping into the vent may cause blockages, affecting the dishwasher's ventilation performance. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a dishwasher that prevents oil and other contaminants from dripping from the dish rack and contaminating the door, in light of the current state of the technology.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a dishwasher, comprising...

[0009] The box-shaped structure has an open front.

[0010] The dish rack can move back and forth in and out of the box;

[0011] The door is rotatably positioned at the front opening of the enclosure, allowing the enclosure to be opened or closed.

[0012] Its characteristic is that it also includes

[0013] A baffle that can move back and forth to enter and exit the cabinet. When the door is open, the baffle is horizontally positioned between the dish rack and the door.

[0014] Drive mechanism, including

[0015] The first transmission component is connected to the baffle to transmit power to the baffle;

[0016] The second transmission component is connected to the dish rack to transmit power to the dish rack;

[0017] The driving component is connected to either the first transmission assembly or the second transmission assembly in a driving manner.

[0018] A clutch structure is used to connect the first transmission assembly and the second transmission assembly, and can disconnect the first transmission assembly and the second transmission assembly.

[0019] In order to ensure good cooperation between the first transmission assembly, the second transmission assembly and the clutch structure, the first transmission assembly includes a first screw, a first nut and a first gear. The first screw is disposed in the housing and extends in the front-to-back direction. The first nut is fixedly disposed on the baffle and is threadedly connected to the first screw. The first gear is disposed on the first screw, and the first screw and the first gear are fixed relative to each other in the circumferential direction.

[0020] The second transmission assembly includes a second screw, a second nut, and a second gear. The second screw is located in the housing and extends in the front-to-back direction. The second nut is fixedly located on the cup holder and is threadedly connected to the second screw. The second gear is located on the second screw, and the second screw and the second gear are fixed relative to each other in the circumferential direction.

[0021] The drive component is connected to the first gear, and the first and second gears transmit or disconnect power through a clutch mechanism. This gear transmission and lead screw-nut transmission method has a compact structure and does not occupy much space in the housing.

[0022] The clutch structure can be set between the first gear and the second gear, so that the first gear and the second gear can transmit power or not transmit power: the clutch structure includes a drive component and a clutch gear. The housing is fixedly provided with a mounting shaft extending in the front-rear direction. The clutch gear is mounted on the mounting shaft. The drive component can drive the clutch gear to move axially along the mounting shaft to a first position or a second position. When the clutch gear is in the first position, the first gear and the second gear can transmit power through the clutch gear.

[0023] When the clutch gear is in the second position, the power transmission between the first gear and the second gear is disconnected. When the clutch gear is in the first position, the first gear and the second gear are indirectly engaged through the clutch gear to achieve power transmission between the first transmission assembly and the second transmission assembly; when the clutch gear is in the second position, the first gear and the second gear cannot be engaged through the clutch gear, and there is no power transmission between the first transmission assembly and the second transmission assembly.

[0024] The drive assembly can have various structural forms, such as a motor push rod. To facilitate the drive assembly's driving of the clutch gear, the drive assembly includes a power source and a shift fork. The output shaft of the power source extends in the front-to-back direction and can move in the same direction. The shift fork includes a connecting rod and a U-shaped fork portion located at the first end of the connecting rod. A portion of the clutch gear's periphery is embedded in the U-shaped fork portion. The second end of the connecting rod is axially fixedly connected to the output shaft of the power source, and the connecting rod rotates around the output shaft of the power source. The front-to-back movement of the power source's output shaft can drive the shift fork to move back and forth, causing the clutch gear to move to either a first position or a second position. When the clutch gear is in the first position, it rotates under the transmission of the first gear. Because the connecting rod can rotate around the output shaft of the power source, it does not affect the rotation of the clutch gear.

[0025] The clutch structure can act on the first gear or the second gear to cause displacement between the first gear and the second gear, thereby enabling or disabling power transmission between the first gear and the second gear. However, since the first gear still needs to be connected to the driving component for driving, the second gear can move along the axial direction of the second screw to a first position or a second position under the action of the clutch structure. When the second gear is in the first position, the power transmission between the first gear and the second gear is disconnected; when the second gear is in the second position, the power transmission between the first gear and the second gear can be realized.

[0026] The clutch structure can have various structural forms, such as a motor push rod, or it can be: the clutch structure includes a mounting part at the end of the second screw, an electromagnetic coil mounted on the mounting part, and an elastic element acting on the second gear. The second gear maintains the tendency to move to the second position under the action of the elastic element. The electromagnetic coil is magnetic when energized, and the second gear is magnetic, so that the electromagnetic coil magnetically attracts the second gear to the first position when energized.

[0027] Preferably, the baffle is provided with a lamp body, which operates when the baffle moves, enabling dynamic lighting.

[0028] Preferably, as the dish rack moves forward, it abuts against the inner wall of the door. This allows the dish rack to push the door as it moves out of the cabinet, automatically closing the door at a small angle.

[0029] To prevent scratches on the door and noise, a flexible sleeve is provided on the front side wall of the dish rack. As the dish rack moves forward, the flexible sleeve abuts against the inner wall of the door. This way, as the dish rack moves out of the cabinet, it pushes the door, allowing the door to automatically close at a small angle.

[0030] Preferably, a fixing plate is horizontally placed at the rear of the box body, and there is a notch between the fixing plate and the door body when the door is closed;

[0031] The baffle can move in the front-to-back direction within the cabinet to either a first position or a second position. In the first position, the baffle is positioned at the notch and cooperates with the fixed plate to divide the interior of the cabinet into independent upper and lower spaces. In the second position, the baffle is offset from the notch, thus connecting the upper and lower spaces. The baffle not only catches dripping oil from the dish rack, preventing oil from dripping onto the door, but also, in conjunction with the fixed plate, enables full-cavity and partial-cavity washing modes.

[0032] Compared with the prior art, the advantages of the present invention are as follows: By setting a baffle, when the dish rack is pulled forward, the baffle is located between the dish rack and the door. In this way, the oil and other kitchen waste dripping from the tableware placed in the dish rack can be caught by the baffle, and the kitchen waste will not drip onto the door and block the vent on the door. In addition, when the dish rack is pushed back into the box, the baffle is also pushed back into the box, which will not affect the closing of the door. Moreover, the oil on the baffle can be sprayed away by the spray arm in the box. Furthermore, the first transmission component and the second transmission component are connected by a clutch structure, which can make the baffle and the dish rack move synchronously or independently as needed. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0034] Figure 2 for Figure 1 A schematic diagram of the structure without the door;

[0035] Figure 3 for Figure 1 A partial structural diagram (the baffle is in the first position);

[0036] Figure 4 for Figure 3 A schematic diagram of the structure from another direction;

[0037] Figure 5 for Figure 4 A partial structural diagram of the drive mechanism in the diagram;

[0038] Figure 6 This is a schematic diagram of the structure of Embodiment 1 of the present invention (during the outward movement of the bowl rack and baffle);

[0039] Figure 7 This is a schematic diagram of the structure of Embodiment 1 of the present invention (the baffle is in the third position);

[0040] Figure 8This is a partial structural schematic diagram of the driving mechanism in Embodiment 2 of the present invention;

[0041] Figure 9 This is a partial structural schematic diagram of the driving mechanism in Embodiment 3 of the present invention. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] Example 1

[0044] like Figures 1-7 As shown, the dishwasher of this preferred embodiment includes a cabinet 1, a dish rack 2, a baffle 3, a drive mechanism, and a fixing plate (not shown in the figure).

[0045] The front of the box 1 is open, and the front of the box 1 is provided with a rotatable door 10. The rotation axis of the door 10 extends in the left and right direction, and the door 10 can open or close the front opening of the box 1.

[0046] The dish rack 2 can move back and forth in and out of the box 1. In this embodiment, the dish rack 2 is located in the upper part of the box 1, specifically in the upper space 11 below. A dish basket can also be provided in the lower part of the box 1, specifically in the lower space 12 below.

[0047] The above are existing technologies, and will not be elaborated further here.

[0048] The dish rack 2 is generally a hollow structure made up of several frame strips to allow water to drain. When contaminated dishes are placed on the dish rack 2, oil and debris on the dishes may leak out from the dish rack 2. When the door is open, the dish rack 2 is located directly above the door 10. Oil and debris dripping from the dish rack 2 will drip onto the door 10. When the door 10 is closed, if the dishwasher is in the half-cavity wash mode, the upper space 11 is easily contaminated by oil on the door 10. In addition, the door 10 is generally equipped with an exhaust vent. If oil drips into the exhaust vent, it may cause blockage and affect the exhaust performance of the dishwasher.

[0049] To address the issue of grease dripping from the dish rack 2 contaminating the door 10, this embodiment includes a baffle 3. The baffle 3 can move back and forth within the cabinet 1. When the door 10 is open, the baffle 3 is positioned horizontally between the dish rack 2 and the door 10. This ensures that grease dripping from the dish rack 2 falls onto the baffle 3 instead of directly onto the door 10. Similarly, when the door 10 is closed, the baffle 3 remains horizontally positioned. In this embodiment, the baffle 3 not only catches grease dripping from the dish rack 2 but also works in conjunction with a fixed plate to enable the dishwasher to perform full-cavity or half-cavity washing modes. Alternatively, the baffle 3 can simply serve the function of catching grease.

[0050] Specifically, a fixed plate is horizontally positioned at the rear of the housing 1. When the door 10 is closed, there is a notch between the fixed plate and the door 10. The baffle 3 can move in the front-back direction within the housing 1 to either a first position or a second position. When the baffle 3 is in the first position, it is positioned at the notch and cooperates with the fixed plate to divide the interior of the housing 1 into two independent spaces: an upper space 11 and a lower space 12. When the baffle 3 is in the second position, it is offset from the notch, thus connecting the upper space 11 and the lower space 12. The cooperation between the baffle 3 and the fixed plate can be referenced to the cooperation between the movable plate and the fixed plate in the prior art patent.

[0051] As can be seen, the baffle 3 can be moved to three positions. When it is in the first position, the baffle 3 cooperates with the fixed plate to separate the upper space 11 and the lower space 12. When it is in the second position, the baffle 3 cooperates with the fixed plate to connect the upper space 11 and the lower space 12. When it is in the third position, the baffle 3 is at least partially located outside the box 1, between the bowl rack 2 and the door 10.

[0052] When the number of tableware to be washed is small, the baffle 3 moves to separate the upper space 11 from the lower space 12. The upper space 11 can be used to store the washed tableware, while the lower space 12 can be sprayed and washed separately. This not only makes full use of the space of the cabinet 1, but also helps to save water and electricity. When the number of tableware to be washed is large, the baffle 3 moves to connect the upper space 11 with the lower space 12, and washes the tableware in both the upper space 11 and the lower space 12 at the same time.

[0053] The drive mechanism is used to drive the bowl rack 2 and the baffle 3. The drive mechanism includes a first transmission assembly, a second transmission assembly, and a drive component. The first transmission assembly is connected to the baffle 3 to transmit power to the baffle 3. The second transmission assembly is connected to the bowl rack 2 to transmit power to the bowl rack 2. The drive component is drivenly connected to either the first transmission assembly or the second transmission assembly. The clutch structure is used to connect the first transmission assembly and the second transmission assembly and can disconnect the first transmission assembly and the second transmission assembly.

[0054] In other words, when the clutch structure connects the first transmission component and the second transmission component, the drive component can drive both the first and second transmission components simultaneously; when the clutch structure disconnects the first and second transmission components, the drive component can only drive either the first or second transmission component connected to it.

[0055] In this embodiment, as Figure 3 , 4As shown in Figure 5, the first transmission assembly includes a first screw 51, a first nut 52, and a first gear 53. The first screw 51 is disposed in the housing 1 and extends in the front-to-back direction. The first nut 52 is fixedly disposed on the baffle 3 and is threadedly connected to the first screw 51. The first gear 53 is disposed on the first screw 51, and the first screw 51 and the first gear 53 are fixed relative to each other in the circumferential direction.

[0056] The second transmission assembly includes a second screw 54, a second nut 55, and a second gear 56. The second screw 54 is located in the housing 1 and extends in the front-to-back direction. The second nut 55 is fixedly mounted on the cup holder 2 by a mounting bracket 551. The second nut 55 is threadedly connected to the second screw 54. The second gear 56 is located on the second screw 54, and the second screw 54 and the second gear 56 are fixed relative to each other in the circumferential direction.

[0057] The driving component 57 is driven and connected to the first gear 53. The driving component 57 can be a motor, which is connected to the first gear 53 through components such as worm gears and gears. The transmission between the driving component 57 and the first gear 53 can use existing technology.

[0058] The first gear 53 and the second gear 56 transmit or disconnect power through a clutch structure. The clutch structure includes a drive assembly and a clutch gear 61. A mounting shaft 13 extending in the front-rear direction is fixedly provided in the housing 1. The clutch gear 61 is mounted on the mounting shaft 13. The drive assembly can drive the clutch gear 61 to move axially along the mounting shaft 13 to a first position or a second position.

[0059] When the clutch gear 61 is in the first position, power is transmitted between the first gear 53 and the second gear 56 through the clutch gear 61, thereby realizing power transmission between the first transmission assembly and the second transmission assembly. In this state, the first gear 53 and the clutch gear 61 can directly mesh or indirectly mesh through an intermediate gear; the second gear 56 and the clutch gear 61 can directly mesh or indirectly mesh through an intermediate gear.

[0060] When the clutch gear 61 is in the second position, the clutch gear 61 disconnects the power transmission between the first gear 53 and the second gear 56, so there is no power transmission between the first transmission assembly and the second transmission assembly.

[0061] The drive assembly includes a power source 62 and a shift fork 63. The output shaft 621 of the power source 62 extends in the front-to-back direction and can move in the front-to-back direction. The shift fork 63 includes a connecting rod 631 and a U-shaped fork 632 disposed at the first end of the connecting rod 631. A portion of the peripheral edge of the clutch gear 61 is embedded in the U-shaped fork 632. The second end of the connecting rod 631 is axially fixedly connected to the output shaft of the power source 62, and the connecting rod 631 rotates around the output shaft of the power source 62. The front-to-back movement of the output shaft of the power source 62 can drive the shift fork 63 to move back and forth, causing the clutch gear 61 to move back and forth to a first position or a second position. When the clutch gear 61 is in the first position, the clutch gear 61 rotates under the transmission of the first gear 53. Because the connecting rod 631 can rotate around the output shaft of the power source 62, it will not affect the rotation of the clutch gear 61.

[0062] When the baffle 3 needs to be moved outside the housing 1, the clutch gear 61 can be in the first position, and there is power transmission between the first gear 53 and the second gear 56, and the cup holder 2 and the baffle 3 move synchronously; when the cup holder 2 is in the housing 1 and does not need to move, only the baffle 3 needs to be moved to the first position or the second position, the clutch gear 61 is moved to the second position, so that the power of the drive component 57 cannot be transmitted to the second gear 56 through the first gear 53. At this time, the baffle 3 can move independently under the action of the drive component 57 and the first transmission assembly.

[0063] The first gear 53, the second gear 56, and the clutch structure are all housed in the mounting box 9, which is fixedly installed at the rear of the housing 1.

[0064] The dishwasher in this embodiment also includes a first guide structure that moves the dish rack 2 back and forth and a second guide structure that moves the baffle 3 back and forth. The first guide structure and the second guide structure are existing technologies.

[0065] like Figure 2 As shown, the first guide structure includes a guide rail 71 and a sliding member 72. The left and right sides of the bowl rack 2 are provided with guide rails 71 extending in the front-back direction. The guide rails 71 can move back and forth to enter and exit the box 1. The guide rails 71 have guide grooves 711 extending in the front-back direction. The box 1 is provided with guide parts 14 that cooperate with the guide grooves 711.

[0066] Both ends of the guide rail 71 are provided with limiting parts 712, and the bowl rack 2 is provided with a sliding part 72. The sliding part 72 can slide and cooperate with the guide rail 71. When the sliding part 72 and the limiting part 712 are in abutting state, the bowl rack 2 and the guide rail 71 are relatively fixed in the front-back direction. The guide rail 71 slides along the guide part 14. The sliding part 72 is a wheel that can rotate around an axis extending in the left-right direction. In this way, the sliding part 72 and the guide rail 71 have rolling friction, and the friction force is small.

[0067] When the slider 72 is not abutting against the limiting part 712, the slider 72 slides along the guide rail 71. At this time, the guide rail 71 remains stationary, and only the bowl rack 2 moves. When the slider 72 abuts against the limiting part 712, the slider 72 and the guide rail 71 are relatively fixed in the forward or backward movement direction. At this time, the guide rail 71 and the bowl rack 2 move synchronously, and the bowl rack 2 is relatively fixed relative to the guide rail 71 in the forward and backward direction. This cooperation between the guide rail 71 and the bowl rack 2 allows the bowl rack 2 to have a longer movement trajectory.

[0068] like Figure 3 As shown, the second guide structure includes a guide rod 73 extending in the front-rear direction and a guide sleeve 74 through which the guide rod 73 passes. The guide rod 73 is connected to the baffle 3, and the guide sleeve 74 is fixedly installed in the housing 1. Alternatively, the guide rod 73 can be fixedly installed in the housing 1, and the guide sleeve 74 can be connected to the baffle 3.

[0069] The baffle 3 is equipped with a lamp body 31. When the baffle 3 moves, the lamp body 31 works to provide dynamic lighting. In this embodiment, lamp bodies 31 are provided on both the upper and lower surfaces of the baffle 3.

[0070] As the dish rack 2 moves forward, it abuts against the inner wall of the door 10. Thus, as the dish rack 2 moves out of the cabinet 1, it pushes the door 10, allowing the door 10 to automatically push against the door at a small angle.

[0071] To prevent scratches on the door 10 and noise, a flexible sleeve 21 is provided on the front side wall of the dish rack 2. The flexible sleeve 21 can be made of flexible materials such as silicone or rubber. As the dish rack 2 moves forward, the flexible sleeve 21 can abut against the inner wall of the door 10. In this way, as the dish rack 2 moves out of the box 1, it will push the door 10, realizing the automatic small-angle push-open of the door 10.

[0072] Example 2

[0073] like Figure 8 As shown, the clutch structure in this embodiment is different from that in embodiment 1; other aspects can be referred to in embodiment 1.

[0074] Under the action of the clutch structure, the second gear 56 can move along the axial direction of the second screw 54 to either the first position or the second position. When the second gear 56 is in the first position, the power transmission between the first gear 53 and the second gear 56 is disconnected. When the second gear 56 is in the second position, the power transmission between the first gear 53 and the second gear 56 can be realized.

[0075] The clutch structure includes a mounting portion 81 at the end of the second screw 54, an electromagnetic coil mounted on the mounting portion 81, and an elastic element 82 acting on the second gear 56. The second gear 56 maintains a tendency to move to a second position under the action of the elastic element 82. The electromagnetic coil is magnetic when energized, and the second gear 56 is also magnetic, thereby causing the electromagnetic coil to magnetically attract the second gear 56 to the first position when energized. The elastic element 82 is a spring, with one end abutting against the mounting portion 81 and the other end abutting against the second gear 56.

[0076] The first gear 53 and the second gear 56 can mesh directly. In this embodiment, the first gear 53 and the second gear 56 mesh indirectly through several intermediate gears, and one of the intermediate gears is the clutch gear 61 of Embodiment 1.

[0077] When the baffle 3 needs to be moved outside the housing 1, the second gear 56 is in the second position, and the bowl rack 2 and the baffle 3 move synchronously. When the bowl rack 2 is in the housing 1 and does not need to move, only the baffle 3 needs to be moved to the first or second position, the second gear 56 is in the first position. At this time, the baffle 3 can move independently under the action of the drive member 57 and the first transmission assembly.

[0078] Example 3

[0079] like Figure 9 As shown, this embodiment includes both the clutch structures of Embodiment 1 and Embodiment 2. Either the clutch structure of Embodiment 1 or the clutch structure of Embodiment 2 can be used as needed.

[0080] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A dishwasher, comprising Box body (1), open at the front; The dish rack (2) can move back and forth in and out of the box (1); The door (10) is rotatably disposed at the front opening of the box (1) around an axis extending in the left and right directions, thereby opening or closing the box (1); Its features are, Also includes The baffle (3) is a movable entry and exit box (1). When the door (10) is open, the baffle (3) is arranged horizontally and located between the bowl rack (2) and the door (10). Drive mechanism, including The first transmission component is connected to the baffle (3) to transmit power to the baffle (3); The second transmission component is connected to the bowl rack (2) to transmit power to the bowl rack (2); The driving component (57) is driven and connected to the first transmission assembly or the second transmission assembly; A clutch structure is used to connect the first transmission assembly and the second transmission assembly, and can disconnect the first transmission assembly and the second transmission assembly.

2. The dishwasher according to claim 1, characterized in that: The first transmission assembly includes a first screw (51), a first nut (52) and a first gear (53). The first screw (51) is disposed in the housing (1) and extends in the front-back direction. The first nut (52) is fixedly disposed on the baffle (3). The first nut (52) is threadedly connected to the first screw (51). The first gear (53) is disposed on the first screw (51), and the first screw (51) and the first gear (53) are fixed relative to each other in the circumferential direction. The second transmission assembly includes a second screw (54), a second nut (55), and a second gear (56). The second screw (54) is located in the housing (1) and extends in the front-to-back direction. The second nut (55) is fixedly located on the cup holder (2) and is threadedly connected to the second screw (54). The second gear (56) is located on the second screw (54), and the second screw (54) and the second gear (56) are fixed relative to each other in the circumferential direction. The drive unit (57) is driven to connect with the first gear (53), and the first gear (53) and the second gear (56) are connected by a clutch structure to realize power transmission or disconnect the power transmission between them.

3. The dishwasher according to claim 2, characterized in that: The clutch structure includes a drive assembly and a clutch gear (61). A mounting shaft (13) extending in the front-rear direction is fixedly provided in the housing (1). The clutch gear (61) is mounted on the mounting shaft (13). The drive assembly can drive the clutch gear (61) to move axially along the mounting shaft (13) to a first position or a second position. When the clutch gear (61) is in the first position, power transmission is achieved between the first gear (53) and the second gear (56) through the clutch gear (61). When the clutch gear (61) is in the second position, the clutch gear (61) disconnects the power transmission between the first gear (53) and the second gear (56).

4. The dishwasher according to claim 3, characterized in that: The drive assembly includes a power source (62) and a shift fork (63). The output shaft of the power source (62) extends in the front-rear direction and can move in the front-rear direction. The shift fork (63) includes a connecting rod (631) and a U-shaped fork (632) provided at the first end of the connecting rod (631). A portion of the clutch gear (61) is embedded in the U-shaped fork (632). The second end of the connecting rod (631) is axially fixedly connected to the output shaft of the power source (62), and the connecting rod (631) rotates around the output shaft of the power source (62).

5. The dishwasher according to claim 2, characterized in that: Under the action of the clutch structure, the second gear (56) can move along the axis of the second screw (54) to the first position or the second position. When the second gear (56) is in the first position, the power transmission between the first gear (53) and the second gear (56) is disconnected. With the second gear (56) in the second position, power transmission can be achieved between the first gear (53) and the second gear (56).

6. The dishwasher according to claim 5, characterized in that: The clutch structure includes a mounting portion (81) at the end of the second screw (54), an electromagnetic coil mounted on the mounting portion (81), and an elastic element (82) acting on the second gear (56). The second gear (56) tends to move to the second position under the action of the elastic element (82). The electromagnetic coil is magnetic when energized, and the second gear (56) is magnetic, so that the electromagnetic coil magnetically attracts the second gear (56) to the first position when energized.

7. The dishwasher according to any one of claims 1 to 6, characterized in that: The baffle (3) is provided with a lamp body (31).

8. The dishwasher according to any one of claims 1 to 6, characterized in that: During the forward movement of the bowl rack (2), the bowl rack (2) can abut against the inner wall of the door (10).

9. The dishwasher according to claim 8, characterized in that: The front side wall of the bowl rack (2) is provided with a flexible sleeve (21). During the process of the bowl rack (2) moving forward, the flexible sleeve (21) can abut against the inner wall surface of the door (10).

10. The dishwasher according to any one of claims 1 to 6, characterized in that: A fixing plate is horizontally placed at the rear of the box (1), and there is a gap between the fixing plate and the door (10) when the door (10) is closed. The baffle (3) can move in the front-back direction to a first position or a second position in the box (1). When the baffle (3) is in the first position, the baffle (3) is located at the notch and cooperates with the fixing plate to divide the interior of the box (1) into an independent upper space (11) and a lower space (12). When the baffle (3) is in the second position, the baffle (3) is offset from the notch so that the upper space (11) and the lower space (12) are connected.

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