A washing device

Abstract

The present application provides a washing device, including a washing drum, a pulsator assembly, and a water pump assembly arranged on the pulsator assembly, wherein the washing drum is provided with a washing cavity, the pulsator assembly is arranged in the washing cavity, the pulsator assembly includes a pulsator and a pulsator core protruding from the top surface of the pulsator, and the pulsator core is provided with a water flow channel and a water spray port; in a first washing state, the pulsator assembly rotates in a first direction, and the water pump assembly moves the water flow upward so that the water flow in the water flow channel flows from bottom to top and sprays out from the water spray port. In the washing device of the embodiment of the present application, the water pump assembly plays a role of lifting and pumping the water flow, so that the water flow in the water flow channel has a large water pressure and flow rate, so that the water flow sprayed from the water spray port has a large flow rate, which has a certain breaking up and impacting effect on the clothes in the washing cavity, reducing the possibility of clothes entanglement; the water pump assembly can promote the flow of water in the washing cavity, promote the full dissolution of detergent, and thus improve the washing effect of the clothing treatment device.

Description

Technical Field

[0001] The present application relates to the field of washing technology, and in particular to a washing device. Background Art

[0002] Taking a pulsator washing machine as an example, during washing, the pulsator rotates to stir the water flow and clothes in the washing drum, and the washing effect is achieved by the water flow flushing the clothes and the friction between the clothes. However, this type of washing machine has a serious problem of clothes entanglement and tangling during the washing process. Summary of the invention

[0003] In view of this, an embodiment of the present application hopes to provide a washing device that improves the entanglement phenomenon.

[0004] The present application provides a washing device, comprising:

[0005] A washing drum, wherein the washing drum is provided with a washing chamber;

[0006] A pulsator assembly is disposed in the washing chamber, the pulsator assembly comprises a pulsator and a pulsator core protruding from the top surface of the pulsator, the pulsator core is provided with a water flow channel and a water spray port;

[0007] A water pump assembly disposed on the impeller assembly;

[0008] The washing device includes a first washing state. In the first washing state, the impeller assembly rotates in a first direction, and the water pump assembly moves the water flow upward so that the water flow in the water flow channel flows from bottom to top and is sprayed out from the water spray port.

[0009] In some embodiments, the water flow channel extends along the height direction of the washing drum, and the bottom side of the water flow channel is open, the impeller is provided with an overflow port, and the impeller core cover is arranged around the overflow port, and in the first washing state, the water flow channel can take in water from the bottom side of the impeller through the overflow port.

[0010] In some embodiments, the ratio of the flow diameter of the flow port to the outer diameter of the impeller is 1 / 6 to 1 / 2.

[0011] In some embodiments, the water pumping assembly has a first driving surface, the normal direction of the first driving surface is inclined upward, and in the first washing state, the water pumping assembly drives water to flow upward through the first driving surface.

[0012] In some embodiments, the washing device includes a second washing state, in which the impeller assembly rotates in a second direction, the water pump assembly pushes the water flow downward so that the water flow in the water flow channel flows from top to bottom to the bottom of the impeller, and the water flow channel is filled with water from the water spray port, wherein the first direction and the second direction are opposite.

[0013] In some embodiments, the water pumping assembly has a second driving surface, the normal of the second driving surface is inclined downward, and in the second washing state, the water pumping assembly drives the water to flow downward through the second driving surface.

[0014] In some embodiments, the impeller core includes a core column extending along the height direction of the washing drum, and the water spray port includes a plurality of first water spray ports arranged on the circumferential side wall of the core column, and at least some of the first water spray ports are arranged along the height direction of the core column.

[0015] In some embodiments, the circumferential surface of the core column is provided with stirring ridges, the stirring ridges extend along the height direction of the core column, and each of the first water spray ports is provided on the stirring ridges.

[0016] In some embodiments, the arrangement position of the first water spray port on the stirring ridge satisfies: in the first washing state, the first water spray port is located on the back water side of the stirring ridge, and in the second state, the first water spray port is located on the front water side of the stirring ridge.

[0017] In some embodiments, the impeller core includes a core column extending in the height direction of the washing drum, and the water spray port includes a plurality of second water spray ports, and the second water spray ports are arranged on the top end surface of the core column; the impeller core includes a diffuser arranged on the top side of the core column, and the diffuser has a downwardly inclined guide surface, and the guide surface guides the water flow from the second water spray port to the surrounding of the core column.

[0018] In some embodiments, the impeller includes a impeller disc and a plurality of first water-deflecting ridges protruding from the top surface of the impeller disc, the impeller core includes a core column extending along the height direction of the washing drum and a plurality of second water-deflecting ridges arranged at the lower end of the core column, the space within the core column is the water flow channel, and the impeller core is connected to the impeller disc through each of the second water-deflecting ridges; along the circumference of the impeller, each of the second water-deflecting ridges and each of the first water-deflecting ridges are alternately arranged.

[0019] In some embodiments, the water pumping assembly includes an impeller device, and at least one of the water flow channel or the bottom side of the impeller is provided with the impeller device, and the impeller is equipped with blades, and the water pumping assembly drives the water to flow upward or downward through the blades.

[0020] In some embodiments, the impeller device is disposed in the water flow channel and on the bottom side of the impeller, and the two impeller devices form a two-stage water pumping.

[0021] In some embodiments, the impeller includes an impeller disc, an annular water retaining rib arranged on the bottom surface of the impeller disc, and a water-repelling rib sheet, the annular water retaining rib is arranged around the flow port, the impeller device is arranged in the area enclosed by the annular water retaining rib, and each of the water-repelling rib sheets is radially distributed with the annular water retaining rib as the center.

[0022] In some embodiments, the impeller device is disposed in the water flow channel, and the impeller device disposed in the water flow channel includes an impeller shaft and blades, the impeller shaft extends along the height direction of the core column, and the blades are arranged along the axial direction of the impeller shaft.

[0023] In some embodiments, the impeller assembly includes a pressure plate disposed in the core column, and the impeller device disposed in the water flow channel is supported on the pressure plate.

[0024] In some embodiments, the washing equipment includes a waterfall plate arranged in the washing drum, the waterfall plate extends along the height direction of the washing drum and is provided with a waterfall outlet, a water spray channel connected to the waterfall outlet is formed between the waterfall plate and the inner wall of the washing drum, the bottom side of the water spray channel is open, and the impeller can drive part of the water on its bottom side to enter the water spray channel from the opening of the water spray channel and spray out from the waterfall outlet.

[0025] In the washing device of the embodiment of the present application, when the impeller assembly rotates in the first direction, the water pump assembly lifts and pumps the water flow, forcing the water flow in the water flow channel to flow from bottom to top and spray out from the water spray port. Under the action of the water pump assembly, the water flow in the water flow channel has a large water pressure and flow rate, so the water flow sprayed from the water spray port can also have a large flow rate, which has a certain breaking up and impacting effect on the clothes in the washing chamber, reducing the possibility of clothes being entangled. In addition, the water pump assembly can promote the flow of water in the washing chamber and promote the full dissolution of detergent, thereby improving the washing effect of the clothing treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a washing device according to an embodiment of the present application;

[0027] Figure 2 This is a schematic structural diagram of a pulsator assembly according to an embodiment of the present application;

[0028] Figure 3 for Figure 2 A schematic diagram of another view of the structure shown;

[0029] Figure 4 for Figure 2 A schematic diagram of the structure shown in another perspective;

[0030] Figure 5 For along Figure 4 Sectional view in the AA direction;

[0031] Figure 6 This is a schematic diagram of the structure of an impeller core according to an embodiment of the present application;

[0032] Figure 7 for Figure 6 A partial enlarged schematic diagram of the disperser of the structure shown;

[0033] Figure 8 for Figure 6 A schematic diagram of another view of the structure shown;

[0034] Fig. 9 for Figure 6 A schematic diagram of the structure shown in another perspective;

[0035] Fig.10 For along Fig. 9 Cross-sectional view in CC direction;

[0036] Fig.11 This is a schematic diagram of the structure of a pulsator according to an embodiment of the present application;

[0037] Fig.12 for Fig.11 A schematic diagram of another view of the structure shown;

[0038] Fig.13 for Fig.11 A schematic diagram of the structure shown in another perspective;

[0039] Fig.14 For along Fig.13 Cross-sectional view in the middle DD direction;

[0040] Fig.15 This is a schematic structural diagram of a first impeller device according to an embodiment of the present application;

[0041] Fig.16 for Fig.15 A schematic diagram of another view of the structure shown;

[0042] Fig.17 for Fig.15 A schematic diagram of the structure shown in another perspective;

[0043] Fig.18 is a cross-sectional view along the BB direction in 17;

[0044] Fig.19This is a schematic structural diagram of a second impeller device according to an embodiment of the present application;

[0045] Fig. 20 Schematic diagram of the structure of a pressure plate according to an embodiment of the present application.

[0046] Description of Reference Numerals

[0047] Impeller 1; flow port 1a; blind groove 1b; impeller plate 11; first screw column 111; second screw column 112; first water-discharging ridge 12; shoulder 13; annular water retaining rib 14; annular mounting cavity 14a; water-discharging rib sheet 15; impeller core 2; core column 21; water flow channel 21a; first water spray port 21b′; second water spray port 21b″; stirring rib 211; first water-discharging side 211a; second water-discharging side 211b; second water-discharging ridge 22; first ridge segment 221; second ridge segment 22 2; second connecting hole 22a; disperser 23; guide surface 23a; first positioning hole 23b; radiation rib 24; impeller device 3′, 3″; blade 31; hub 32; rim 33; first connecting hole 33a; impeller shaft 34; spline 35; pressure plate 4; second positioning hole 4b; washing drum 50; washing chamber 50a; drum body 501; drum bottom 502; water storage tub 60; waterfall plate 70; waterfall outlet 70b; water spray channel 70a; clutch 81; impeller shaft 82; dehydration shaft 83 DETAILED DESCRIPTION

[0048] The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

[0049] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "top", "bottom" and the like indicate positions or location relationships based on the attached Figure 1 and Figure 5 The orientation or position relationship shown is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] An embodiment of the present application provides a washing device, and the type of the washing device is not limited, and can be a washing machine, a shoe washing machine, a fruit and vegetable washing machine, a dishwasher, a steam mop, etc.

[0051] For example, in the embodiments of the present application, the washing device is described as a washing machine.

[0052] See also Figure 1The washing device includes a washing tub 50, a pulsator shaft 82, a pulsator assembly, and a water pump assembly disposed on the pulsator assembly.

[0053] The pulsator assembly is rotatably disposed in the washing tub 50 . Specifically, the washing tub 50 has a washing chamber 50 a , and the pulsator assembly is located in the washing chamber 50 a . The pulsator shaft 82 is connected to the pulsator assembly to drive the pulsator assembly to rotate in the washing tub 50 .

[0054] For example, please refer to Figure 1 The washing tub 50 includes a tub body 501 and a tub bottom 502. The tub body 501 is open at both ends, and the tub bottom 502 is disposed at the open portion of the lower end of the tub body 501. The tub body 501 and the tub bottom 502 may be made of the same material or different materials. For example, the tub body 501 is made of metal, and the tub bottom 502 is made of plastic.

[0055] For example, in some embodiments, please refer to Figure 1 The washing device includes a water tub 60, and a washing tub 50 is disposed in the water tub 60. The washing tub 50 is filled with water through the water tub 60.

[0056] For example, see Figure 1 The washing device includes a dehydration shaft 83, which is sleeved on the outer surface of the impeller shaft 82. The top of the dehydration shaft 83 is connected to the washing tub 50 to drive the washing tub 50 to rotate.

[0057] The washing device includes a dehydration state and a washing state. In the washing state, the impeller assembly rotates relative to the washing tub 50, that is, the impeller shaft 82 drives the impeller assembly to rotate, and the dehydration shaft 83 does not transmit torque, that is, the dehydration shaft 83 does not drive the washing tub 50 to rotate, and the washing tub 50 is substantially in a stationary state. In the dehydration state, the washing tub 50 and the impeller assembly rotate synchronously and in the same direction. In this state, the dehydration shaft 83 and the impeller shaft 82 both transmit torque, and there is almost no relative movement between the impeller assembly and the washing tub 50.

[0058] For example, see Figure 1 The washing device includes a clutch 81, and the clutch 81 is used to realize power clutch between the dehydration shaft 83 and the output power of the motor. When the clutch 81 is engaged, the dehydration shaft 83 and the power output shaft are connected in transmission, and the dehydration shaft 83 transmits torque to the washing drum 50; when the clutch 81 is disengaged, the transmission between the dehydration shaft 83 and the power output shaft is disconnected, and the torque of the power output shaft will not be transmitted to the dehydration shaft 83, and the dehydration shaft 83 and the washing drum 50 have no power input, so they remain stationary.

[0059] It should be noted that during washing, the pulsator 1 rotates at a low speed, for example, maintaining 30 to 150 revolutions per minute, and during dehydration, the washing tub 50 and the pulsator 1 rotate at a high speed, for example, greater than 600 revolutions per minute.

[0060] It should be noted that, in the washing state, in some embodiments, the impeller shaft 82 drives the impeller assembly to rotate in the same direction all the time, for example, the impeller assembly is always driven to rotate forward, or the impeller assembly is always driven to rotate reversely, that is, the impeller assembly can only have one rotation direction. In other embodiments, the impeller shaft 82 can selectively drive the impeller assembly to rotate forward or reversely, for example, with one minute as a rotation cycle, the impeller shaft 82 drives the impeller assembly to rotate forward in the previous cycle, and the impeller shaft 82 drives the impeller assembly to rotate reversely in the next cycle.

[0061] It should be noted that the above-mentioned forward and reverse rotation only express that the two directions are opposite, and do not specify the specific direction of rotation. Figure 4 The clockwise direction in is defined as the forward direction, and the counterclockwise direction is defined as the reverse direction; Figure 4 The clockwise direction is defined as the reverse direction, and the counterclockwise direction is defined as the forward direction.

[0062] See also Figure 2 , Figure 3 ,as well as Figure 4 The impeller assembly includes an impeller 1 and an impeller core 2.

[0063] The pulsator 1 plays the role of stirring the clothes and removing water, and the pulsator 1 is roughly disc-shaped. Figure 2 , Figure 4 , Fig.11 ,as well as Fig.13 The pulsator 1 includes a pulsator disc 11 and a plurality of first water-deflecting ridges 12 protruding from the top surface of the pulsator disc 11 . The pulsator 1 stirs the clothes and moves the water flow through the plurality of first water-deflecting ridges 12 .

[0064] Since the impeller core 2 protrudes from the top surface of the impeller 1, during the rotation of the impeller assembly, clothes are not easily entangled or knotted at the core column 21, and the core column 21 can reduce the entanglement and knotting of clothes to a certain extent.

[0065] See also Figure 2 , Figure 4 , Fig.11 as well as Fig.13 The impeller core 2 is provided with a water flow channel 21a and a water spray port (refer to the reference numerals 21b′, 21b″). Exemplarily, the water flow channel 21a extends in the impeller core 2 approximately along the height direction of the washing tub 50. The water spray port connects the water flow channel 21a and the space in the washing chamber 50a, that is, the water in the water flow channel 21a can flow into the washing chamber 50a through the water spray port, and the water in the washing chamber 50a can also enter the water flow channel 21a through the water spray port.

[0066] The washing device includes a first washing state. In the first washing state, the impeller assembly rotates in a first direction, and the water pump assembly moves the water flow upward so that the water flow in the water flow channel 21a flows from bottom to top and is sprayed out from the water spray port.

[0067] In the washing device of the embodiment of the present application, when the impeller assembly rotates in the first direction, the water pump assembly lifts and pumps the water flow, forcing the water flow in the water flow channel 21a to flow from bottom to top and spray out from the water spray port. It is understandable that after the water flow in the water flow channel 21a is sprayed out from the water spray port, the water flow channel 21a can be replenished with water from other parts in time. Under the action of the water pump assembly, the water flow in the water flow channel 21a has a large water pressure and flow rate, so the water flow sprayed from the water spray port can also have a large flow rate, which has a certain breaking up and impacting effect on the clothes in the washing chamber 50a, reducing the possibility of clothes entanglement. In addition, the water pump assembly can promote the flow of water in the washing chamber 50a, promote the full dissolution of detergent, and thus improve the washing effect of the clothing treatment equipment.

[0068] It should be noted that, in addition to the water spray port, the water flow channel 21a also has other channels that can communicate with the washing chamber 50a, so that the water flow can circulate between the washing chamber 50a and the water flow channel 21a.

[0069] For example, see Fig.11 , Fig.12 as well as Fig.13 , the impeller 1 is provided with an over-flow port 1a, please refer to Figure 8 and Fig.10 , the bottom side of the water flow channel 21a is open; see Figure 5 , the impeller core 2 is covered around the flow port 1a, that is, the water flow channel 21a is connected to the space on the bottom side of the impeller 1. In the first washing state, the water flow channel 21a can flow water from the bottom side of the impeller 1 through the flow port 1a. In this embodiment, the water pump assembly can pump the water below the impeller 1 into the water flow channel 21a, which can promote the exchange and flow of the water above and below the impeller 1, and can effectively stir the detergent at the bottom 502 of the drum, further improving the cleaning ratio.

[0070] Exemplarily, the washing device includes a second washing state, in which the impeller assembly rotates in a second direction, the water pump assembly drives the water flow downward so that the water flow in the water flow channel 21a flows from top to bottom to the bottom of the impeller 1, and water enters the water flow channel 21a from the water spray port.

[0071] The first direction and the second direction are opposite.

[0072] When the impeller assembly rotates in the second direction, the water pump assembly pushes water downward, so that the water in the water flow channel 21a flows from top to bottom, and the water in the water flow channel 21a flows out from the bottom side of the impeller 1. The water above the impeller 1 is replenished into the water flow channel 21a in time through the water spray port, that is, at this time, part of the water above the impeller 1 is guided to the bottom of the impeller 1. In this embodiment, whether the impeller assembly rotates forward or reversely, the water exchange between the upper and lower parts of the impeller 1 can be promoted.

[0073] It should be noted that the water pump assembly, the impeller 1 and the impeller core 2 are connected together to form a whole, and the whole is driven to rotate together by the impeller shaft 82.

[0074] It should be noted that, in some embodiments, the rotation center line of the impeller 1 can always coincide with the axis of the impeller shaft 82; in other embodiments, the impeller 1 can swing up and down during the rotation process. In this embodiment, there can be a small angle between the rotation center line of the impeller 1 and the axis of the impeller shaft 82, for example, an angle less than 5°. During the rotation of the impeller 1, the angle can remain unchanged or change, and there is no limitation here.

[0075] For example, see Figure 1 The washing device includes a waterfall plate 70 arranged in the washing tub 50, the waterfall plate 70 extends along the height direction of the washing tub 50, and a waterfall port 70b is arranged on the waterfall plate 70, a water spray channel 70a connected to the waterfall port 70b is formed between the waterfall plate 70 and the inner wall of the washing tub 50, the bottom side of the water spray channel 70a is open, and the impeller 1 can move part of the water on its bottom side to enter the water spray channel 70a from the open part of the water spray channel 70a and spray out from the waterfall port 70b during the rotation process.

[0076] During the washing process, the impeller 1 stirs the water below it. Under the action of centrifugal force, the water rushes to the inner wall of the washing drum 50, rises along the water spray channel 70a and is sprayed out from the waterfall outlet 70b. The waterfall water sprayed from the waterfall outlet 70b is sprayed on the clothes in the washing chamber 50a, which can quickly soak the clothes floating on the water surface and effectively rinse off the residual floating foam, thereby improving the washing effect.

[0077] The number of the spray waterfall plate 70 can be one or more. In the embodiment where the number of the spray waterfall plate 70 is more than one, the plurality of spray waterfall plates 70 are arranged at intervals along the circumference of the washing tub 50 .

[0078] It is understandable that in the first washing state, some water may also be sprayed out from the waterfall outlet 70b, that is, at this time, the water outlet and the waterfall outlet 70b can both spray water. In the second washing state, the water flow channel 21a takes in water from the water outlet. Since the impeller 1 moves the water below it to the inner wall of the washing drum 50, a certain negative pressure will be formed below the center of the impeller 1, and the water pump assembly drives the water in the water flow channel 21a to the bottom of the center of the impeller 1, which can quickly replenish the water in the center of the impeller 1. In this way, the water flow entering the water spray channel 70a can be increased, so that the waterfall outlet 70b can produce a stronger water spray effect and improve the washing ratio; in addition, it can also increase the visualization effect of the spray water flow from the waterfall outlet 70b and improve the user experience.

[0079] It should be noted that the position of the waterfall outlet 70b is relatively high, and the water flow can be sprayed from top to bottom to spray the water flow onto the clothes. Exemplarily, the position of the waterfall outlet 70b is higher than the maximum washing water level allowed by the washing device.

[0080] It should be noted that the maximum washing water level allowed by the washing equipment refers to the designed maximum water level of the washing equipment. During the normal washing process of the washing equipment, the water level will not exceed the maximum water level.

[0081] For example, in order to make the flow port 1a have a larger water flow capacity, please refer to Fig.13 , the ratio of the flow diameter d1 of the flow port 1a to the outer diameter d2 of the impeller 1 is 1 / 6 to 1 / 2, for example, 1 / 6, 1 / 5, 1 / 4, 1 / 3, 2 / 5, 1 / 2, etc. The size range of the flow port 1a can not only allow the impeller 1 to have a larger space to set the first water-displacing ridge 12 to ensure the displacement ability of the impeller 1, but also allow the flow port 1a to have an appropriate aperture to reduce the restriction of the flow port 1a on the flow of water. It should be noted that the outer diameter of the impeller 1 is the outer diameter of the impeller disc 11.

[0082] It should be noted that the flow diameter of the flow opening 1a refers to the diameter corresponding to the point where the flow area of ​​the flow opening 1a is the smallest along the impeller shaft 82.

[0083] For example, see Figure 8 , Fig. 9 as well as Fig.10 The pulsator core 2 includes a core column 21 extending along the height direction of the washing tub 50. The interior of the core column 21 is hollow, and the space inside the core column 21 is at least a part of the water flow channel 21a.

[0084] See also Figure 6 , Figures 8 to 10The lower end of the stem 21 is flared to accommodate the larger size of the flow port 1a, and to ensure that the middle and upper parts of the stem 21 remain relatively small in size to reduce the space occupied by the stem 21.

[0085] For example, see Figure 2 , Figure 6 , Figure 8 as well as Fig.10 The water spraying ports include a plurality of first water spraying ports 21b' arranged on the circumferential side wall of the stem 21, and at least some of the first water spraying ports 21b' are arranged along the height direction of the stem 21. The water sprayed from the first water spraying ports 21b' is sprayed toward the clothes around the stem 21, which can produce a good pushing effect on the surrounding clothes. In addition, the plurality of first water spraying ports 21b' arranged along the height direction of the stem 21 can better adapt to the water level change of the washing chamber 50a. Regardless of the water level in the washing chamber 50a, some of the first water spraying ports 21b' can always spray water toward the surrounding clothes.

[0086] It should be noted that, regardless of whether there is a protruding structure on the circumferential surface of the stem 21, the stem 21 can relieve clothing entanglement. In some embodiments, the circumferential surface of the stem 21 may be a bare surface, that is, the stem 21 may not be provided with any protruding structure. In other embodiments, the circumferential surface of the stem 21 is provided with spiral lifting ribs to lift and stir clothing during rotation.

[0087] In some other embodiments, please refer to Figure 2 , Figure 6 as well as Figure 8 , the circumferential surface of the core column 21 is provided with a stirring rib 211, and the stirring rib 211 extends along the height direction of the core column 21. The number of stirring ribs 211 can be one or more. Regardless of whether the impeller assembly rotates forward or reverse, the stirring rib 211 can play a good stirring effect on the water flow and clothes. Exemplarily, each first water spray port 21b' is provided on the stirring rib 211. In an embodiment in which the number of stirring ribs 211 is one, all the first water spray ports 21b' are provided on the same stirring rib 211. In an embodiment in which the number of stirring ribs 211 is multiple, each stirring rib 211 is provided with a portion of the first water spray ports 21b'.

[0088] The arrangement position of the first water spray port 21b′ on the stirring rib 211 satisfies: in the first washing state, the first water spray port 21b′ is located on the back water side of the stirring rib 211; in the second state, the first water spray port 21b′ is located on the front water side of the stirring rib 211.

[0089] For example, see Fig. 9The stirring rib 211 has a first water-repelling side 211a and a second water-repelling side 211b, and the stirring rib 211 selectively repels water through the first water-repelling side 211a or the second water-repelling side 211b. For example, when the impeller assembly rotates in the first direction, the stirring rib 211 repels water through the first water-repelling side 211a. At this time, the first water-repelling side 211a is the water-facing side, and the second water-repelling side 211b is the water-repelling side. When the impeller assembly rotates in the second direction, the stirring rib 211 repels water through the second water-repelling side 211b. At this time, the second water-repelling side 211b is the water-facing side, and the first water-repelling side 211a is the water-repelling side.

[0090] Each first water spray port 21b' is located on the first water-repelling side 211a, or each first water spray port 21b' is located on the second water-repelling side 211b. That is, the first water spray port 21b' can only be set on the first water-repelling side 211a or the second water-repelling side 211b. Specifically, if the first water spray port 21b' is set on the first water-repelling side 211a, the second water-repelling side 211b of all the stirring ribs 211 are not provided with the first water spray port 21b'; if the first water spray port 21b' is set on the second water-repelling side 211b, the first water spray port 21b' is not set on the first water-repelling side 211a of all the stirring ribs 211.

[0091] In the first washing state, the stirring ribs 211 tend to stir the clothes to move in the first direction, and since the first water spraying ports 21b' are all located on the back water side of the stirring ribs 211, the water flow sprayed from the second water spraying ports 21b" impacts the clothes, driving the clothes to move in the opposite direction, thereby effectively reducing the entanglement of the clothes.

[0092] For example, see Figure 2 , Figure 6 , Figure 7 as well as Fig.10 The water spray port includes a plurality of second water spray ports 21b″, and the second water spray ports 21b″ are arranged on the top end surface of the core column 21, that is, the second water spray ports 21b″ discharge or take in water in the up and down directions.

[0093] See also Figure 2 , Figure 6 , Figure 8 as well as Fig.10 The impeller core 2 includes a disperser 23 arranged on the top side of the core column 21, and the disperser 23 has a downwardly inclined guide surface 23a to guide the water flow from the second water spray port 21b" to the periphery of the core column 21. The disperser 23 can block the water flow from the second water spray port 21b", and prevent the water flow from the second water spray port 21b" from spraying out of the washing drum 50 from the top of the washing drum 50 when the flow rate and pressure are large.

[0094] The specific shape of the guide surface 23a is not limited, for example, please refer to Figure 7The guide surface 23a is a conical surface with the rotation center line of the impeller 1 as the axis, and each second water spray port 21b" is arranged around the conical surface, see Fig.10 The bottom end of the conical surface extends into the water flow channel 21a in the core column 21. In this embodiment, the conical surface can disperse the water flow sprayed from each second water spray port 21b" more evenly around the core column 21, which can present an umbrella-shaped spray effect, improve the uniformity of washing clothes, and also improve the visualization effect.

[0095] Exemplarily, the disperser 23 and the core column 21 are an integrally formed structure, see Figure 7 The disperser 23 and the core column 21 are connected together by various radial ribs 24. The radial ribs 24 are arranged at intervals along the circumference of the disperser 23, and the space between two adjacent radial ribs 24 forms the above-mentioned second water spraying port 21b".

[0096] For example, see Figure 6 , Figure 8 as well as Fig. 9 The pulsator core 2 includes a plurality of second water-discharging ridges 22 disposed at the lower end of the core column 21, and the pulsator core 2 is connected to the pulsator disc 11 through each second water-discharging ridge 22. The second water-discharging ridges 22 can assist in water-discharging and tumbling clothes, further improving the water-discharging and clothes-stirring capabilities of the pulsator assembly.

[0097] The second water deflector ridge 22 is connected to the impeller plate 11 in any manner, for example, by screw connection. Fig.12 A second screw column 112 is formed on the bottom side of the impeller 11, and the second screw column 112 is provided with a second screw hole, see Figure 6 The second water-discharging ridge 22 is provided with a second connection hole 22a which penetrates the second water-discharging ridge 22 along the axial direction of the impeller 1. The screw passes through the second connection hole 22a from top to bottom and is screwed into the second screw hole, so that the second water-discharging ridge 22 and the impeller disc 11 can be fixedly and detachably connected. When the impeller core 2 needs to be repaired or cleaned, the screw is unscrewed from the top, so that the impeller core 2 can be removed from the impeller 1; when the impeller core 2 needs to be reassembled, the screw can be driven in from top to bottom, which is convenient for disassembly and assembly.

[0098] Exemplarily, along the circumference of the impeller 1, the second water-repelling ridges 22 and the first water-repelling ridges 12 are arranged alternately, so that the uniformity of the water-repelling ability of the impeller assembly in the circumferential direction can be improved.

[0099] For example, see Fig.11 and Fig.14The impeller 1 includes a convex shoulder 13 protruding from the top surface of the impeller disc 11 and surrounding the flow port 1a, and the radial inner end of each first water-repelling ridge 12 is connected to the convex shoulder 13. The bottom end of the stem 21 abuts on the convex shoulder 13. In this way, the abutment between the stem 21 and the convex shoulder 13 is almost watertight, so that the water flow channel 21a can only flow out or in from the bottom side of the impeller disc 11 through the flow port 1a.

[0100] It should be noted that the impeller disk 11 is a watertight disk, that is, the water above or below the impeller disk 11 will not directly pass through the impeller disk 11 .

[0101] For example, see Fig.11 and Fig.13 The top surface of the impeller 1 is provided with a blind groove 1b, which extends from the circumferential surface of the boss 13 to the top surface of the impeller disc 11. Figure 6 and Figure 8 The second water-repellent ridge 22 includes a first ridge segment 221 and a second ridge segment 222 which are connected to each other. The first ridge segment 221 extends obliquely downward from the circumferential surface of the core column 21, and the second ridge segment 222 extends from the end of the first ridge segment 221 in the radial outward direction of the impeller 1. A portion of the first ridge segment 221 is embedded in the blind groove 1b on the boss 13, and a portion of the second ridge segment 222 is embedded in the blind groove 1b on the impeller disc 11.

[0102] In this embodiment, the second water deflector ridge 22 is embedded in the blind groove 1b on the side facing the impeller 1, and the cooperation between the two can play a role in transmitting torque, reducing the shear force borne by the screws used to connect the second water deflector ridge 22 and the impeller disc 11, and improving reliability; in addition, it can also play a role in circumferential positioning, thereby improving the assembly efficiency of the second water deflector ridge 22 and the impeller disc 11.

[0103] There is no limit to the way in which the water pump assembly can move the water flow.

[0104] Exemplarily, the water pump assembly has a first driving surface, and the normal of the first driving surface is inclined upward. In the first washing state, that is, when the impeller assembly moves along the first direction, the force of the first driving surface on the water flow is along the normal of the first driving surface. Since the normal is inclined upward, the force has an axially upward component, which drives the water flow upward. In other words, the water pump assembly drives the water flow upward through the first driving surface.

[0105] It should be noted that the normal of the first drive surface refers to the direction of the normal that is perpendicular to the first drive surface and extends roughly upward from the first drive surface. That is, the first drive surface faces upward, and the angle between the first drive surface and the rotation centerline of the impeller 1 is an acute angle, not a right angle.

[0106] Exemplarily, the water pump assembly has a second driving surface, and the normal of the second driving surface is inclined downward, that is, when the impeller assembly moves in the second direction, the force of the second driving surface on the water flow is along the normal of the second driving surface. Since the normal is inclined downward, the force has an axially downward component, which drives the water flow downward. That is to say, in the second washing state, the water pump assembly drives the water flow downward through the second driving surface.

[0107] It should be noted that the normal of the second drive surface refers to the direction of the normal line that is perpendicular to the second drive surface and extends approximately downward from the second drive surface. That is, the second drive surface faces downward, and the angle between the second drive surface and the rotation centerline of the impeller 1 is an acute angle, not a right angle.

[0108] The specific structural form of the water pump assembly is not limited.

[0109] For example, Figure 5 , Fig.15 , Fig.16 , Fig.17 , Fig.19 The water pump assembly includes an impeller device 3', 3", at least one of the water flow channel 21a or the bottom side of the impeller 1 is provided with an impeller device 3', 3", and the impeller device 3', 3" is equipped with blades 31. The water pump assembly drives the water to flow upward or downward through the blades 31. Specifically, the upper surface of the blade 31 is the above-mentioned first driving surface, and the lower surface of the blade 31 is the above-mentioned second driving surface.

[0110] It is understandable that, in some embodiments, an impeller device is provided inside the water flow channel 21a, while no impeller device is provided on the bottom side of the impeller 1; in other embodiments, an impeller device is provided on the bottom side of the impeller 1, while no impeller device is provided on the water flow channel 21a.

[0111] In some other embodiments, please refer to Figure 5 , the number of impeller devices 3′, 3″ is at least two, and the bottom side of the impeller 1 and the water flow channel 21a are both provided with impeller devices 3′, 3″. The two impeller devices 3′, 3″ form a two-stage water pumping, which can further improve the water pumping capacity. Specifically, in the first washing state, the two-stage water pumping can greatly increase the water pumping pressure in the water flow channel 21a, so that the water flow can be sprayed out from the water spray port at a larger flow rate and water pressure, thereby increasing the driving force on the clothes and further reducing the entanglement of the clothes. In the second washing state, the two-stage water pumping can increase the negative pressure of the water flow channel 21a near the water spray port, so that the water near the water spray port in the washing chamber 50a can be quickly sucked into the water flow channel 21a; in addition, it can also form a positive pressure in the lower area of ​​the impeller 1, accelerate the flow of water in the open part of the water spray channel 70a, and increase the water flow rate of the water spray channel 70a.

[0112] Exemplarily, the axial direction of the impeller devices 3 ′, 3 ″ coincides with the axial direction of the impeller 1 , that is, the two are coaxially arranged.

[0113] The specific structure of the impeller devices 3', 3" can be appropriately adjusted according to the different installation positions and installation spaces.

[0114] For example, see Figure 3 , Fig.12 and Fig.14 The impeller 1 includes an annular water retaining rib 14 and a water-repelling rib sheet 15 protruding from the bottom surface of the impeller disc 11. The annular water retaining rib 14 is arranged around the flow port 1a. The area surrounded by the annular water retaining rib 14 is an annular installation cavity 14a. The impeller device 3' is arranged in the area surrounded by the annular water retaining rib 14, that is, one of the impeller devices 3' is arranged in the annular installation cavity 14a. The shape and size of the annular water retaining rib 14 are adapted to the outer contour of the impeller device 3'.

[0115] It should be noted that the top end of the annular water retaining rib 14 is sealedly connected to the bottom surface of the impeller disc 11 , that is, the connection between the two is watertight.

[0116] The annular water retaining rib 14 has a water gathering effect, so that the impeller device therein can centrally push the water flow upward or downward.

[0117] See also Figure 3 and Fig.11 , each water-repelling rib sheet 15 is radially distributed with the annular water retaining rib 14 as the center. For example, the inner end of the water-repelling rib sheet 15 in the radial direction is connected with the annular water retaining rib 14, and the outer end of the water-repelling rib sheet 15 extends to the edge of the impeller disc 11. The impeller 1 moves the water below the impeller 1 to flow to the opening of the water spray channel 70a through the water-repelling rib.

[0118] It is understandable that the water deflector sheet 15 can extend along a straight line or a curve, and there is no limitation here.

[0119] For the convenience of description, the impeller device 3 ′ located below the impeller 1 is referred to as the first impeller device 3 ′.

[0120] See also Fig.15 , Fig.16 ,as well as Fig.17 The first impeller device 3 ′ is roughly disc-shaped, and includes a hub 32 , a rim 33 , and a plurality of blades 31 . The hub 32 and the rim 33 are roughly concentrically arranged, and the blades 31 are connected between the hub 32 and the rim 33 .

[0121] For example, see Fig.12The bottom side of the impeller 11 is provided with a plurality of first screw columns 111, and a plurality of first screw holes are provided in the first screw columns 111. Figures 15 to 18 The rim 33 is provided with a plurality of first connection holes 33a, and the screws pass through the first connection holes 33a from bottom to top and are screwed into the first screw holes to achieve the connection between the first impeller device 3' and the impeller disk 11.

[0122] In order to facilitate the driving cooperation between the impeller assembly and the impeller shaft 82, for example, in some embodiments, refer to Fig.15 , Fig.17 as well as Fig.18 The central area of ​​the first impeller device 3' is provided with a spline 35 for anti-rotation cooperation with the impeller shaft 82. The top end of the impeller shaft 82 extends into the spline 35 and anti-rotation cooperates with the spline 35. That is to say, the impeller assembly is driven and cooperated with the impeller 1 through the first impeller device 3'.

[0123] It is understandable that in the embodiment where the first impeller device 3' is injection molded using a plastic material, in order to improve the structural strength of the first impeller device 3' for the anti-rotation fit with the impeller shaft 82, the spline 35 is, for example, a metal part that is plastic-coated in the first impeller device 3'. During the molding and manufacturing process of the first impeller device 3', the spline 35 can be first placed in the injection mold of the first impeller device 3', and the injection plastic can be poured on the spline 35, so that the spline 35 and the rest of the first impeller device 3' form a whole, so that the bonding strength between the spline 35 and the surrounding plastic structure can be improved, and the shear resistance and torque bearing capacity of the first impeller device 3' can be improved.

[0124] For the convenience of description, the impeller device 3" disposed in the core column 21 is referred to as the second impeller device 3". Fig.19 The second impeller device 3″ includes an impeller shaft 34 and blades 31. The impeller shaft 34 extends along the height direction of the core column 21, and the blades 31 are arranged along the axial direction of the impeller shaft 34. It should be noted that in some embodiments, the blades 31 are continuous spiral blades 31, that is, the same blade 31 spirally extends from one axial end of the impeller shaft 34 to the other axial end of the impeller shaft 34. In other embodiments, the blade 31 is a short blade 31 structure, the number of blades 31 is multiple, and the multiple blades 31 are arranged along the axial direction of the impeller shaft 34.

[0125] Since the core column 21 has a certain length, the structural form of the second impeller device 3 ″ enables the second impeller device 3 ″ to be installed in the core column 21 with a smaller radial dimension, and the water pumping effect can be ensured by a certain axial length.

[0126] For example, see Figure 5The impeller assembly includes a pressure plate 4, which is arranged in the core column 21 and located at the bottom side of the second impeller device 3", and the second impeller device 3" is supported on the pressure plate 4. During the assembly process, the second impeller device 3" is first placed in the core column 21, and then the pressure plate 4 is pressed against the impeller shaft 34, and then the pressure plate 4 is fixed on the core column 21. For example, in order to facilitate the limit of the top end of the impeller shaft 34, please refer to Fig.10 The bottom end of the disperser 23 is provided with a first positioning hole 23b, and the top end of the impeller shaft 34 extends into the first positioning hole 23b. Fig. 20 The pressure plate 4 is provided with a second positioning hole 4b, and the bottom end of the impeller shaft 34 extends into the second positioning hole 4b, so that the axial positioning of the impeller shaft 34 is achieved.

[0127] It is understandable that the first positioning hole 23 b mentioned above may also be formed at an appropriate position on the upper end of the stem 21 .

[0128] In some embodiments, the impeller core 2 is an integrally formed structure, for example, integrally injection molded, that is, the core column 21, the diffuser 23, and the second water-repelling ridge 22 are an integrally formed structure.

[0129] In some embodiments, the impeller 1 is an integrally formed structure, for example, integrally injection molded, that is, the impeller disc 11, the first water-repelling ridge 12, the boss 13, the annular water retaining rib 14, and the water-repelling rib sheet 15 are an integrally formed structure.

[0130] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0131] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A washing device, characterized in that: include: A washing drum (50), wherein the washing drum (50) is provided with a washing chamber (50a); a pulsator assembly disposed in the washing chamber (50a), the pulsator assembly comprising a pulsator (1) and a pulsator core (2) protruding from the top surface of the pulsator (1), the pulsator core (2) being provided with a water flow channel (21a) and a water spray port; A water pump assembly disposed on the impeller assembly; The washing device comprises a first washing state, in which the impeller assembly rotates in a first direction, and the water pump assembly moves the water flow upward so that the water flow in the water flow channel (21a) flows from bottom to top and is sprayed out from the water spray port; the impeller core (2) comprises a core column (21) extending in the height direction of the washing tub (50) and a disperser (23) arranged on the top side of the core column (21).

2. The washing device according to claim 1, characterized in that: The water flow channel (21a) extends in the height direction of the washing tub (50), and the bottom side of the water flow channel (21a) is open. The impeller (1) is provided with an overflow port (1a), and the impeller core (2) is covered around the overflow port (1a). In the first washing state, the water flow channel (21a) can take in water from the bottom side of the impeller (1) through the overflow port (1a).

3. The washing device according to claim 2, characterized in that: The ratio of the flow diameter of the flow port (1a) to the outer diameter of the impeller (1) is 1 / 6 to 1 / 2.

4. The washing device according to claim 1, characterized in that: The water pump assembly has a first driving surface, the normal direction of the first driving surface is inclined upward, and in the first washing state, the water pump assembly drives water to flow upward through the first driving surface.

5. The washing device according to claim 2, characterized in that: The washing device comprises a second washing state, in which the impeller assembly rotates in a second direction, the water pump assembly moves the water flow downward so that the water flow in the water flow channel (21a) flows from top to bottom to the bottom of the impeller (1), and the water flow channel (21a) is filled with water from the water spray port, wherein the first direction and the second direction are opposite.

6. The washing device according to claim 5, characterized in that: The water pump assembly has a second driving surface, the normal direction of the second driving surface is inclined downward, and in the second washing state, the water pump assembly drives water to flow downward through the second driving surface.

7. The washing device according to claim 1, characterized in that: The water spraying ports include a plurality of first water spraying ports (21b') arranged on the circumferential side wall of the core column (21), and at least some of the first water spraying ports (21b') are arranged along the height direction of the core column (21).

8. The washing device according to claim 7, characterized in that: The circumferential surface of the core column (21) is provided with a stirring ridge (211), the stirring ridge (211) extending along the height direction of the core column (21), and each of the first water spray ports (21b') is provided on the stirring ridge (211).

9. The washing device according to claim 8, characterized in that: The arrangement position of the first water spray port (21b') on the stirring ridge (211) satisfies: in the first washing state, the first water spray port (21b') is located on the backwater side of the stirring ridge (211); in the second washing state, the first water spray port (21b') is located on the frontwater side of the stirring ridge (211).

10. The washing device according to claim 1, characterized in that: The water spray outlet comprises a plurality of second water spray outlets (21b"), wherein the second water spray outlets (21b") are arranged on the top end surface of the core column (21); the disperser (23) has a guide surface (23a) inclined downward, and the guide surface (23a) guides the water flow from the second water spray outlets (21b") to the periphery of the core column (21).

11. The washing device according to claim 1, characterized in that: The impeller (1) comprises an impeller disc (11) and a plurality of first water-deflecting ridges (12) protruding from the top surface of the impeller disc (11); the impeller core (2) comprises a plurality of second water-deflecting ridges (22) arranged at the lower end of the core column (21); the space inside the core column (21) is the water flow channel (21a); ​​the impeller core (2) is connected to the impeller disc (11) via each of the second water-deflecting ridges (22); along the circumference of the impeller (1), each of the second water-deflecting ridges (22) and each of the first water-deflecting ridges (12) are arranged alternately.

12. The washing device according to claim 2, characterized in that: The water pump assembly comprises an impeller device, at least one of the water flow channel (21a) or the bottom side of the impeller (1) is provided with the impeller device, the impeller device has blades (31), and the water pump assembly drives water to flow upward or downward through the blades (31).

13. The washing device according to claim 12, characterized in that: The impeller device is arranged inside the water flow channel (21a) and on the bottom side of the impeller (1), and the two impeller devices form a two-stage water pump.

14. The washing device according to claim 12, characterized in that: The impeller (1) comprises an impeller disc (11), an annular water retaining rib (14) arranged on the bottom surface of the impeller disc (11), and water-repelling rib pieces (15); the annular water retaining rib (14) is arranged around the flow opening (1a); the impeller device is arranged in the area surrounded by the annular water retaining rib (14); and the water-repelling rib pieces (15) are distributed in a radial shape with the annular water retaining rib (14) as the center.

15. The washing device according to claim 12, characterized in that: The impeller device is arranged in the water flow channel (21a), and the impeller device arranged in the water flow channel (21a) comprises an impeller shaft (34) and blades (31), the impeller shaft (34) extends along the height direction of the core column (21), and the blades (31) are arranged along the axial direction of the impeller shaft (34).

16. The washing device according to claim 15, characterized in that: The impeller assembly comprises a pressure plate (4) arranged in the core column (21), and the impeller device arranged in the water flow channel (21a) is supported on the pressure plate (4).

17. The washing device according to any one of claims 1 to 16, characterized in that: The washing device comprises a waterfall plate (70) arranged in the washing barrel (50), the waterfall plate (70) extending in the height direction of the washing barrel (50) and provided with a waterfall outlet (70b), a water spray channel (70a) connected to the waterfall outlet (70b) being formed between the waterfall plate (70) and the inner wall of the washing barrel (50), the bottom side of the water spray channel (70a) being open, and the impeller (1) being able to move part of the water on its bottom side into the water spray channel (70a) from the open part of the water spray channel (70a) and being sprayed out from the waterfall outlet (70b).

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