CN110387666B

CN110387666B - washing machine

Info

Publication number: CN110387666B
Application number: CN201810341665.7A
Authority: CN
Inventors: 周鹏; 王翔; 汤凯利; 高飞; 邓德喜; 熊明; 徐彭城
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2018-04-17
Filing date: 2018-04-17
Publication date: 2024-05-24
Anticipated expiration: 2038-04-17
Also published as: CN110387666A

Abstract

The invention discloses a washing machine, comprising: the outer barrel is provided with a water outlet; the inner cylinder is rotatably arranged in the outer barrel, a clearance cavity communicated with the water outlet is defined between the inner cylinder and the outer barrel, and the inner cylinder is provided with a chip discharge port; the impeller is rotatably arranged in the inner cylinder, a washing cavity positioned above the impeller and a water containing cavity positioned below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through a chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity from the chip removal port and the fluid in the washing cavity is supplemented into the water containing cavity from the water supplementing holes; the one-way valve plate is arranged on the inner cylinder and is used for normally closing the chip removal port, and the one-way valve plate is impacted by fluid pushed by the drainage rib when rotating along with the impeller to open the chip removal port. The washing machine provided by the embodiment of the invention can realize automatic discharge of the thread scraps, and has the advantages of high thread scraps discharge efficiency and good thread scraps discharge effect.

Description

Washing machine

Technical Field

The invention relates to the technical field of electric appliance manufacturing, in particular to a washing machine.

Background

In order to ensure that the thread scraps are not adhered to washed clothes and maintain the cleanliness of the inside of the drum, a filter bag is usually arranged on the side wall of the inner drum to collect the thread scraps, and a user manually dismantles the filter bag to clean the thread scraps after washing. The filter bag can collect the filings in the initial stage, can guarantee 60% -70% of the filings collection rate, but after washing for several times, the mesh of the filter bag can be blocked by fine filings, and the common cleaning mode has difficulty in guaranteeing the smoothness of the filtering system, so the collection efficiency can be gradually reduced. In addition, in actual use, the user easily forgets to clean or tired to clean the filter bag, so that the filter bag is completely blocked and loses the filtering effect, and the filter bag is fully filled with moist filings and is easy to cause bacteria secondary pollution to wash clothes.

In the related art, a washing machine with an automatic lint discharging function is proposed, but the lint discharging effect is not ideal, the lint discharging amount is substantially equal to or less than that of the filter bag, and in order to increase the function, an increase in the cost of the washing machine is caused.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the washing machine which can realize automatic discharge of the thread scraps, and has high thread scraps discharge efficiency and good thread scraps discharge effect.

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner barrel is rotatably arranged in the outer barrel, a clearance cavity communicated with the water outlet is defined between the inner barrel and the outer barrel, and a chip discharge port is formed in the inner barrel; the impeller is rotatably arranged in the inner cylinder, a washing cavity positioned above the impeller and a water containing cavity positioned below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and the fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes; the one-way valve plate is arranged on the inner cylinder and is used for normally closing the chip removal port, and the one-way valve plate is opened by fluid impact pushed by the drainage rib when the impeller rotates.

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely when washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and when water is discharged and dehydrated, the thread scraps in the clearance cavity are discharged from the water outlet by utilizing the washing water, so that the automatic cleaning of the thread scraps is finished, and the one-way valve plate is further arranged, so that the chip removal port can be automatically opened and closed.

According to some embodiments of the invention, the exhaust port is provided in a bottom portion of a sidewall of the inner barrel.

According to some specific examples of the invention, the one-way valve plate is rotatably mounted on the inner cylinder and normally closes the chip discharge port by means of self gravity.

Further, the check valve sheet includes: the sheet body is rotatably mounted on the inner cylinder; and the weight increasing part is arranged on the sheet body.

Further, the sheet body is provided with a rotating shaft, the inner cylinder is provided with a hook, and the rotating shaft is rotatably matched with the hook.

Further, the rotating shaft is arranged on the upper edge of the sheet body, and the weight increasing part is arranged on the surface of the sheet body, which is opposite to the chip removal port, and is positioned on the lower edge of the sheet body.

According to some specific examples of the invention, the weight of the weight increasing portion is more than 35% of the weight of the one-way valve plate.

According to some specific examples of the present invention, the check valve sheet further includes: the tablet body reinforcing rib is arranged on the surface of the tablet body, which is opposite to the chip removal port.

Further, the lamellar body strengthening rib is a plurality of, every lamellar body strengthening rib extends along upper and lower direction and a plurality of lamellar body strengthening rib is along the horizontal direction interval setting.

According to some embodiments of the invention, the inner cylinder is configured with a stop surface that stops inside the one-way valve plate when the one-way valve plate closes the exhaust port.

According to some embodiments of the invention, the outer surface of the inner cylinder is provided with a receiving groove, and the one-way valve plate is positioned in the receiving groove.

Further, the accommodating groove is arranged on the outer side surface of the inner cylinder and penetrates through the outer bottom surface of the inner cylinder.

Further, a limiting structure for limiting the maximum opening of the one-way valve plate for opening the chip removal port is arranged on the inner cylinder.

Further, when the one-way valve plate is stopped by the limiting structure and is at the maximum opening, the maximum distance between the one-way valve plate and the central axis of the inner cylinder in the radial direction of the inner cylinder is not larger than the maximum radius of the inner cylinder.

According to some embodiments of the invention, the total cross-sectional area of the individual exhaust ports is greater than 2500mm ².

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner barrel is rotatably arranged in the outer barrel, a clearance cavity communicated with the water outlet is defined between the inner barrel and the outer barrel, and a chip discharge port is formed in the inner barrel; the impeller is rotatably arranged in the inner cylinder, a washing cavity positioned above the impeller and a water containing cavity positioned below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and the fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes; wherein the cross-sectional area of each water supplementing hole is 10mm ²～20mm².

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely, during washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and during water discharge and dehydration, the thread scraps in the clearance cavity are discharged from the water discharge port by utilizing the washing water, so that automatic cleaning of the thread scraps is completed, the cross section area of the water supplementing hole on the impeller is further limited, the water supplementing resistance and the falling of foreign matters are balanced, the thread scraps in the washing cavity can enter the water containing cavity through the water supplementing hole, the foreign matters such as coins and buttons can be prevented from entering the impeller, and the discharge rate and the discharge effect of the thread scraps are improved.

According to some embodiments of the invention, the maximum span of the cross section of the water refill hole is no greater than 6mm.

According to some embodiments of the invention, the pulsator comprises: the wheel disc is rotatably arranged in the inner cylinder, and a plurality of drainage ribs are arranged on the wheel disc; the water-shifting ribs are arranged on the wheel disc and extend into the washing cavity; wherein, the moisturizing hole divide into locate the quotation moisturizing hole of rim plate and locate the muscle portion moisturizing hole of dialling the water muscle.

Further, the disc surface water supplementing holes are distributed in a 7/10 radius area from the center to the periphery of the impeller.

Further, the disk surface water supplementing holes located at the outermost side in the radial direction of the pulsator are located at 7/10 radius of the periphery of the pulsator from the center thereof.

Further, the sum of the cross sectional areas of the disc surface water supplementing holes is 10% -20% of the projected area of the impeller in the horizontal plane.

Further, the rib water supplementing holes are distributed in an 8/10 radius area from the center to the periphery of the impeller.

Further, the rib water supplementing holes located at the outermost side in the radial direction of the pulsator are located at 8/10 radius of the periphery of the pulsator from the center thereof.

Further, the sum of the cross-sectional areas of the rib water supplementing holes is larger than 8% of the projected area of the impeller in the horizontal plane.

Further, the water-shifting rib is provided with a first water-shifting surface and a second water-shifting surface, and the rib water supplementing hole is formed in the first water-shifting surface; the first water shifting surface is obliquely arranged in the direction from bottom to top to the second water shifting surface, the second water shifting surface is obliquely arranged in the direction from bottom to top to the first water shifting surface, and the inclination angle of the first water shifting surface relative to the horizontal plane is larger than that of the second water shifting surface relative to the horizontal plane; and/or the center of the first water-shifting surface along the length direction is sunken towards the second water-shifting surface, the center of the second water-shifting surface along the length direction is protruded towards the direction away from the first water-shifting surface, and the radian of the first water-shifting surface is larger than that of the second water-shifting surface.

Further, the water-shifting rib, the water-draining rib and the wheel disc are integrally formed, and the bottom of the water-shifting rib forms an upward recess.

According to some specific examples of the present invention, a gap between the pulsator and the inner tube in a radial direction of the pulsator is 2.5mm to 3.5mm.

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner barrel is rotatably arranged in the outer barrel, a clearance cavity communicated with the water outlet is defined between the inner barrel and the outer barrel, and a chip discharge port is formed in the inner barrel; the impeller is rotatably arranged in the inner cylinder, a washing cavity positioned above the impeller and a water containing cavity positioned below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and the fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes; the waterfall spraying cover is arranged in the inner barrel and is used for limiting a waterfall spraying flow passage, and the waterfall spraying flow passage is provided with a water inlet communicated with the water containing cavity and a spray hole communicated with the washing cavity.

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely when washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and when water is discharged and dehydrated, the thread scraps in the clearance cavity are discharged from the water outlet by utilizing the washing water, so that the automatic cleaning of the thread scraps is finished, and the water spraying cover is arranged, so that the washing effect can be improved.

According to some specific examples of the invention, the inner barrel is configured to: when the impeller rotates in one of the clockwise direction and the anticlockwise direction, the inner cylinder guides the fluid in the water containing cavity to the chip removal port and blocks the fluid in the water containing cavity from flowing to the water inlet; when the impeller rotates in the other direction of the clockwise direction and the anticlockwise direction, the inner cylinder guides the fluid in the water containing cavity to the water inlet and blocks the fluid in the water containing cavity from flowing to the chip removal port.

Further, a boss extending along the circumferential direction of the inner cylinder and surrounding the impeller is arranged on the outer periphery of the inner bottom surface of the inner cylinder, and the boss is provided with a chip removal channel communicated with the water containing cavity and the chip removal port and a waterfall spraying channel communicated with the water containing cavity and the water inlet.

Further, one side wall of the chip removal channel is configured to guide fluid in the water containing cavity to the chip removal guide part of the chip removal port, the other side wall of the chip removal channel is configured to block fluid in the water containing cavity from flowing to the chip removal flow blocking part of the chip removal port, and the chip removal guide part and the chip removal flow blocking part are sequentially distributed along one direction of the clockwise direction and the anticlockwise direction.

Further, an outer end of the junk guide is offset relative to an inner end in the one of the clockwise direction and the counterclockwise direction; the outer end of the chip-removing choke is offset relative to the inner end in the one of the clockwise direction and the counterclockwise direction.

Further, in the cross section of the inner barrel, the chip removal guide part is in an arc shape protruding towards the chip removal channel, and the chip removal flow blocking part is in an arc shape recessed towards the direction far away from the chip removal channel.

According to some specific examples of the present invention, one side wall of the waterfall spraying channel is configured to guide the fluid in the water containing cavity to the waterfall spraying guide part of the water inlet, and the other side wall of the waterfall spraying channel is configured to block the fluid in the water containing cavity from flowing to the waterfall spraying flow blocking part of the water inlet, and the waterfall spraying guide part and the waterfall spraying flow blocking part are sequentially distributed along the other direction of the clockwise direction and the anticlockwise direction.

Further, the outer end of the waterfall diversion portion is offset relative to the inner end in the other of the clockwise direction and the counter-clockwise direction; the outer end of the waterfall-blocking portion is offset relative to the inner end in the other of the clockwise direction and the counterclockwise direction.

Further, in the cross section of the inner barrel, the waterfall spraying guide part is in an arc shape protruding towards the direction of the waterfall spraying channel, and the waterfall spraying flow blocking part is in an arc shape sinking towards the direction far away from the waterfall spraying channel.

According to some embodiments of the invention, the waterfall spraying cover and the inner side surface of the inner barrel jointly define the waterfall spraying flow passage, and the water inlet is arranged at the lower end of the waterfall spraying cover.

According to some embodiments of the invention, the waterfall shield is disposed radially opposite the exhaust port in the inner barrel.

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner barrel is rotatably arranged in the outer barrel, a clearance cavity communicated with the water outlet is defined between the inner barrel and the outer barrel, and a chip discharge port is formed in the inner barrel; the impeller is rotatably arranged in the inner cylinder, a washing cavity positioned above the impeller and a water containing cavity positioned below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and the fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes; each drainage rib is divided into an inner edge section and an outer edge section along the length direction of the drainage rib, the inner edge section is located in a 2/5 radius area from the center to the peripheral edge of the impeller, the outer edge section is located in a 3/5 radius area from the peripheral edge to the center of the impeller, and the single-side area of the outer edge section is not smaller than 1800mm ².

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely, during washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and during water discharge and dehydration, the thread scraps in the clearance cavity are discharged from the water discharge port by utilizing the washing water, so that automatic cleaning of the thread scraps is completed, the water-shifting area outside the water discharge rib is limited, and a large enough negative pressure is generated during rotation along with the impeller, so that not only can the water quantity entering the clearance cavity from the water cavity be increased, but also the water quantity entering the water cavity from the washing cavity be increased, and the thread scraps discharge rate is increased.

According to some specific examples of the invention, the single-sided area of the outer edge section is no greater than 3500mm ².

According to some embodiments of the invention, the ratio of the area of the single side of the inner edge section to the area of the single side of the outer edge section is not more than 1/4.

According to some embodiments of the invention, the area of one side of each drain bar is 2500mm 2-4500 mm ².

According to some specific examples of the invention, the bottom of the impeller is provided with a wheel bottom reinforcing rib, and the inner edge section of the drainage rib is connected with the wheel bottom reinforcing rib.

Further, the wheel bottom reinforcing rib comprises: the plurality of wheel bottom annular reinforcing ribs are arranged coaxially, each wheel bottom annular reinforcing rib extends along the circumferential direction of the impeller, and the inner edge section of the drainage rib is connected with the outermost wheel bottom annular reinforcing rib.

Further, the wheel bottom reinforcing rib further comprises: and the plurality of wheel bottom radial reinforcing ribs are arranged between two adjacent wheel bottom annular reinforcing ribs and are respectively connected with the two adjacent wheel bottom annular reinforcing ribs.

Further, the drain rib extends from the outermost wheel bottom annular reinforcing rib to the outer peripheral edge of the pulsator in the radial direction of the pulsator.

Further, the bottom corners of the outer ends of the outer edge sections of the drain bars are rounded.

According to some specific examples of the invention, the lower edge of the inner edge section is flush with the lower edge of the outer edge section and is disposed in a horizontal direction.

Further, the lower edge of the drainage rib is arranged at intervals with the inner bottom surface of the inner cylinder.

According to an embodiment of the invention, a pulsator for a washing machine is provided, wherein a plurality of water draining ribs are arranged at the bottom of the pulsator, each water draining rib is divided into an inner edge section and an outer edge section along the length direction of the water draining rib, the inner edge section is positioned in a 2/5 radius area from the center to the periphery of the pulsator, the outer edge section is positioned in a 3/5 radius area from the periphery to the center of the pulsator, and the single-side area of the outer edge section is not less than 1800mm ².

According to the pulsator for the washing machine, the water poking area outside the water poking rib is limited, so that enough negative pressure is generated when the pulsator rotates, the water quantity entering the gap cavity from the water cavity can be increased, the water quantity entering the water cavity from the washing cavity can be increased, and the wire scrap discharge rate can be increased.

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner tube, the inner tube rotationally locates in the outer bucket, the inner tube with inject with the clearance chamber of outlet intercommunication between the outer bucket, the inner tube is equipped with the chip removal mouth, the inner tube includes: the cross section of the cylinder body is annular; the barrel bottom is arranged at the bottom of the barrel body and is provided with an installation opening; the flange plate is divided into a central area, a middle edge area and an outer edge area along the radial direction of the flange plate from inside to outside, the flange plate is arranged at the bottom of the drum through the outer edge area, the middle edge area and the central area jointly cover the mounting opening, the middle edge area is constructed into a non-porous structure, and the central area is used for mounting a driving assembly of the impeller; the impeller is rotatably arranged in the inner cylinder, a washing cavity above the impeller and a water containing cavity below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes.

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely, during washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and during water discharge and dehydration, the thread scraps in the clearance cavity are discharged from the water discharge port by utilizing the washing water, so that automatic cleaning of the thread scraps is completed, and the flange plate is of a closed structure without holes, so that the circulation of water flow can be completely blocked, the thread scraps in the clearance cavity cannot return to the washing cavity again through the flange plate, so that the thread scraps removal rate is improved, and meanwhile, the flange plate without a water through hole can improve the eccentric resistance of the inner cylinder, and the washing machine has the advantages of simple structure, simple stamping die process, few procedures and reduction of production process complexity and production cost

According to some specific examples of the present invention, the outer edge region is provided with a plurality of peripheral positioning slots for positioning with the cartridge bottom, the plurality of peripheral positioning slots being disposed at intervals along a circumferential direction of the outer edge region.

Further, the outer edge area is provided with a plurality of convex parts protruding upwards, and the plurality of peripheral positioning grooves are respectively arranged on the plurality of convex parts.

According to some specific examples of the invention, the central region is provided with a rotation shaft hole through which a drive shaft of the pulsator passes.

Further, the central area is provided with a plurality of screw holes for fixing the driving assembly of the impeller, and the screw holes are arranged at intervals around the rotating shaft hole.

According to some specific examples of the invention, the central zone and the middle zone are located at the same height and higher than the outer zone, the middle zone and the outer zone are connected by a transition ring inclined relative to the horizontal plane, and the barrel bottom is configured with an inclined surface matched with the transition ring.

Further, the transition ring is configured as a non-porous structure.

Further, rounded corners are respectively formed between the transition ring and the mid-edge region and between the transition ring and the outer edge region.

According to some embodiments of the invention, the outer contour of the mounting opening and the middle rim area is shaped like a circle, the outer contour of the outer rim area is shaped like a rectangle and the inner contour is shaped like a circle that fits the outer contour of the middle rim area.

According to some embodiments of the invention, the flange is a single piece.

According to an embodiment of the present invention, there is provided an inner tub for a washing machine, including: the cross section of the cylinder body is annular; the barrel bottom is arranged at the bottom of the barrel body and is provided with an installation opening, and at least one of the barrel body and the barrel bottom is provided with a chip removal opening; the flange plate is divided into a central area, a middle edge area and an outer edge area from inside to outside along the radial direction of the flange plate, the flange plate is installed at the bottom of the drum through the outer edge area, the middle edge area and the central area jointly cover the installation opening, the middle edge area is constructed into a non-porous structure, and the central area is used for installing a driving assembly of a pulsator of the washing machine.

According to the inner barrel for the washing machine, the flange plate is of the closed structure without holes, so that the circulation of water flow can be completely blocked, and wire scraps in the clearance cavity cannot return to the washing cavity again through the flange plate, so that the wire scraps removal rate is improved, meanwhile, the flange plate without the water through holes can improve the eccentric resistance of the inner barrel, and the inner barrel is simple in structure, simple in stamping die process, few in working procedures and low in production process complexity and production cost

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner barrel is rotatably arranged in the outer barrel, a clearance cavity communicated with the water outlet is defined between the inner barrel and the outer barrel, a chip discharge port is formed in the inner barrel, a large water permeable hole and a small water permeable hole are formed in the side wall of the inner barrel, the minimum cross-sectional area of the large water permeable hole is larger than that of the small water permeable hole, the large water permeable hole is positioned at the upper part of the inner barrel, and the small water permeable hole is positioned at the lower part of the inner barrel; the impeller is rotatably arranged in the inner cylinder, a washing cavity above the impeller and a water containing cavity below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes.

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely, during washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and during water discharge and dehydration, the thread scraps in the clearance cavity are discharged from the water outlet by utilizing the washing water, so that automatic cleaning of the thread scraps is completed, and through the arrangement of the water permeable holes with the large upper part and the small lower part, the water flow carrying the thread scraps can be ensured to enter the clearance cavity through the chip removal port, and then the thread scraps are not easy to return to the inner cylinder under the resistance action of the small water permeable holes, so that the thread scraps are deposited or suspended in the clearance cavity, and are automatically discharged along with the water flow during water discharge. Meanwhile, due to the centrifugal climbing effect during dehydration, the large water permeable holes at the upper part of the inner cylinder can ensure better dehydration efficiency.

According to some embodiments of the invention, the minimum cross-sectional area of the large water permeable hole is 3mm ²～9.5mm².

According to some specific examples of the invention, the small water permeable holes have a minimum cross-sectional area of 0.1mm ²～3mm².

According to some embodiments of the invention, the whole height of the inner cylinder is H, a boundary line with the height H is taken as a boundary line, the large water permeable holes are positioned above the boundary line, and the small water permeable holes are positioned below the boundary line, wherein H/h=1/2-3/5.

According to some embodiments of the invention, the large water permeable holes and the small water permeable holes are arranged in a plurality of columns on the side wall of the inner cylinder, each column being arranged along the axial direction of the inner cylinder and the plurality of columns being spaced apart along the circumference of the inner cylinder.

According to some embodiments of the invention, the inner barrel comprises: the cross section of the barrel body is annular, the barrel body is provided with a large water permeable hole and a small water permeable hole, the minimum cross section area of the large water permeable hole is larger than that of the small water permeable hole, the large water permeable hole is positioned at the upper part of the barrel body, and the small water permeable hole is positioned at the lower part of the barrel body; the barrel bottom is arranged at the bottom of the barrel body and is provided with an installation opening; the flange plate is arranged at the bottom of the cylinder and covers the mounting opening.

According to the embodiment of the invention, an inner barrel for a washing machine is provided, wherein a chip removal port, a large water permeable hole and a small water permeable hole are formed in the side wall of the inner barrel, the minimum cross-sectional area of the large water permeable hole is larger than that of the small water permeable hole, the large water permeable hole is positioned at the upper part of the inner barrel, and the small water permeable hole is positioned at the lower part of the inner barrel.

According to the inner barrel for the washing machine, through the arrangement of the water permeable holes with the large upper part and the small lower part, after water flow with thread scraps enters the clearance cavity through the chip discharge port, the thread scraps are not easy to return to the inner barrel under the resistance action of the small water permeable holes, so that the thread scraps are deposited or suspended in the clearance cavity, and are automatically discharged along with the water flow during water discharge. Meanwhile, due to the centrifugal climbing effect during dehydration, the large water permeable holes at the upper part of the inner cylinder can ensure better dehydration efficiency.

According to some specific embodiments of the invention, 1/2-3/5 of the overall height of the inner cylinder is taken as a dividing line, the large water permeable hole is positioned above the dividing line, the small water permeable hole is positioned below the dividing line, and the chip discharge port is arranged adjacent to the bottom wall of the inner cylinder.

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner barrel is rotatably arranged in the outer barrel, a clearance cavity communicated with the water outlet is defined between the inner barrel and the outer barrel, the inner barrel is provided with a chip discharge port, and the outer bottom surface of the inner barrel is provided with a plurality of drainage wings; the impeller is rotatably arranged in the inner cylinder, a washing cavity positioned above the impeller and a water containing cavity positioned below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity, and when the inner cylinder rotates, a plurality of water draining wings form pressure difference in the clearance cavity so that fluid in the water containing cavity enters the clearance cavity through the chip removal port.

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely when washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and when water is discharged and dehydrated, the thread scraps in the clearance cavity are discharged from the water outlet by utilizing the washing water, so that the automatic cleaning of the thread scraps is finished, and the arrangement of the water discharging wings improves the thread scraps discharging rate and the discharging effect.

According to some specific examples of the invention, the drainage fins are provided in plurality and at intervals along the circumferential direction of the inner tube at the outer periphery of the outer bottom surface of the inner tube.

Further, the area of one side of each drainage wing is 400mm ²～1200mm².

Further, the sum of the single-side areas of the plurality of the drainage wings is 12000mm ²～36000mm².

According to some specific examples of the invention, the outer end of the drainage fin is offset relative to the inner end along the circumference of the inner barrel in the cross section of the inner barrel.

Further, in the cross section of the inner barrel, the drainage wings are in straight lines, and an included angle between the radial lines where the inner ends of the drainage wings are positioned and the drainage wings is-60 degrees to 60 degrees.

Further, in the cross section of the inner barrel, the drainage wings are arc-shaped, and an included angle between a tangent line of the inner end of each drainage wing and a tangent line of the outer end of each drainage wing is 60-120 degrees.

According to some embodiments of the invention, the outer bottom surface of the inner cylinder is provided with a cylinder bottom reinforcing rib, and the drainage wings are connected with the cylinder bottom reinforcing rib.

Further, the barrel bottom reinforcing rib comprises: the plurality of barrel bottom annular reinforcing ribs extend along the circumferential direction of the inner barrel, the plurality of barrel bottom annular reinforcing ribs are coaxially arranged, and the drainage wings are connected with the barrel bottom annular reinforcing ribs at the outermost side.

Further, the barrel bottom reinforcing rib further comprises: and the plurality of barrel bottom radial reinforcing ribs are arranged between two adjacent barrel bottom annular reinforcing ribs and are respectively connected with the two adjacent barrel bottom annular reinforcing ribs.

According to some embodiments of the invention, the inner barrel comprises: the cross section of the cylinder body is annular; the barrel bottom is arranged at the bottom of the barrel body and is provided with an installation opening, and a plurality of drainage wings are arranged at the outer bottom surface of the barrel bottom; the flange plate is arranged at the bottom of the cylinder and covers the mounting opening.

According to the embodiment of the invention, an inner barrel for a washing machine is provided, a chip discharge port is arranged at the bottom of the side wall of the inner barrel, a plurality of drainage wings are arranged at the outer periphery of the outer bottom surface of the inner barrel, and the drainage wings are arranged at intervals along the circumferential direction of the inner barrel.

According to the inner barrel for the washing machine, provided by the embodiment of the invention, the chip removal efficiency is improved by arranging the drainage wings.

According to an embodiment of the present invention, there is provided a washing machine including: the outer barrel is provided with a water outlet; the inner tube, the inner tube rotationally locates in the outer bucket, the inner tube with inject with the clearance chamber of outlet intercommunication between the outer bucket, the inner tube is equipped with the chip removal mouth, the inner tube includes: the cross section of the cylinder body is annular; the barrel bottom is arranged at the bottom of the barrel body and is provided with an installation opening; the flange plate is embedded into the barrel bottom to form a whole with the barrel bottom, and covers the mounting opening; the impeller is rotatably arranged in the inner cylinder, a washing cavity above the impeller and a water containing cavity below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes.

According to the washing machine provided by the embodiment of the invention, through the time separation principle, namely when washing, the thread scraps enter the clearance cavity from the washing cavity through the chip removal port, and when water is discharged and dehydrated, the thread scraps in the clearance cavity are discharged from the water outlet by utilizing the washing water, so that the automatic cleaning of the thread scraps is completed, and through the embedded flange plate, the combination gap between the flange plate and the cylinder bottom can be eliminated, the thread scraps are prevented from being mixed in the gap between the flange plate and the cylinder bottom, the discharge of the thread scraps is facilitated on one hand, and the cleaning of the washing environment of the washing machine 1 can be ensured on the other hand.

According to some specific examples of the invention, the flange is embedded in the cartridge bottom by injection molding.

Further, the flange plate is a metal piece, and the barrel bottom is a plastic piece.

According to some specific examples of the invention, the maximum height of the flange plate is 5 mm-10 mm.

According to some specific examples of the present invention, the flange plate is divided into a central region, a middle edge region and an outer edge region from inside to outside in a radial direction thereof, the flange plate is embedded into the drum bottom through the outer edge region, and the middle edge region and the central region jointly cover the mounting opening, the middle edge region is configured as a non-porous structure, and the central region is used for mounting the driving assembly of the pulsator.

Further, the central area is provided with a rotating shaft hole for the driving shaft of the pulsator to pass through.

According to some embodiments of the invention, the mounting opening is circular with a shape matching the outer contour of the flange.

According to some embodiments of the invention, the flange is a flat panel.

According to some embodiments of the invention, the flange is a single piece.

According to an embodiment of the present invention, there is provided an inner tub for a washing machine, the inner tub including: the cross section of the cylinder body is annular; the barrel bottom is arranged at the bottom of the barrel body and is provided with an installation opening, and at least one of the barrel body and the barrel bottom is provided with a chip removal opening; the flange plate is embedded into the barrel bottom to form a whole with the barrel bottom, and the flange plate covers the mounting opening.

According to the inner barrel for the washing machine, provided by the embodiment of the invention, the embedded flange is arranged, so that the combination gap between the flange and the barrel bottom can be eliminated, and the wire scraps are prevented from being mixed in the gap between the flange and the barrel bottom, so that the discharge of the wire scraps is facilitated, and the washing environment of the washing machine 1 can be ensured to be clean.

According to some embodiments of the invention, the flange plate is divided into a central area, a middle edge area and an outer edge area from inside to outside along the radial direction, the flange plate is embedded into the cylinder bottom through the outer edge area, the middle edge area and the central area jointly cover the mounting opening, the middle edge area is constructed into a non-porous structure, and the central area is used for mounting a driving assembly of a pulsator of the washing machine.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a perspective view of a washing machine according to an embodiment of the present invention.

Fig. 2 is a sectional view of a washing machine according to an embodiment of the present invention.

Fig. 3 is an enlarged view of area a in fig. 2.

Fig. 4 is a perspective view of an outer tub of a washing machine according to an embodiment of the present invention.

Fig. 5 is a perspective view of an inner tub and pulsator of a washing machine in accordance with an embodiment of the present invention.

Fig. 6 is an exploded view of an inner tub of a washing machine according to an embodiment of the present invention.

Fig. 7 is a perspective view of a pulsator of a washing machine in accordance with an embodiment of the present invention.

Fig. 8 is a top view of a pulsator of a washing machine in accordance with an embodiment of the present invention.

Fig. 9 is a bottom perspective view of a pulsator of a washing machine in accordance with an embodiment of the present invention.

Fig. 10 is a bottom view of a pulsator of a washing machine in accordance with an embodiment of the present invention.

Fig. 11 is a perspective view of a bottom of an inner tub of a washing machine according to an embodiment of the present invention.

Fig. 12 is an enlarged view of the area B in fig. 11.

Fig. 13 is a cross-sectional view of a bottom of an inner tub of a washing machine according to an embodiment of the present invention.

Fig. 14 is a sectional view of an inner tub of a washing machine in accordance with a first alternative embodiment of the present invention.

Fig. 15 is a perspective view of a tub bottom and a waterfall cover of an inner tub of a washing machine according to a first alternative embodiment of the present invention.

Fig. 16 is a top view of a drum bottom of an inner drum of a washing machine in accordance with a first alternative embodiment of the present invention.

Fig. 17 is a side view of an inner tub of a washing machine in accordance with a second alternative embodiment of the present invention.

Fig. 18 is an enlarged view of region C in fig. 17.

Fig. 19 is a perspective view of an inner tub of a washing machine in accordance with a third alternative embodiment of the present invention.

Fig. 20 is a bottom view of a drum bottom of an inner drum of a washing machine in accordance with a third alternative embodiment of the present invention.

Fig. 21 is a bottom view of a drum bottom of an inner drum of a washing machine in accordance with a fourth alternative embodiment of the present invention.

Fig. 22 is a sectional view of an inner tub of a washing machine in accordance with a fifth alternative embodiment of the present invention.

Fig. 23 is a perspective view of a flange of an inner tub of a washing machine in accordance with a fifth alternative embodiment of the present invention.

Fig. 24 is a top view of a flange of an inner tub of a washing machine in accordance with a fifth alternative embodiment of the present invention.

Fig. 25 is a sectional view of an inner tub of a washing machine in accordance with a sixth alternative embodiment of the present invention.

Fig. 26 is a top view of a bottom and a flange of an inner tub of a washing machine in accordance with a sixth alternative embodiment of the present invention.

Fig. 27 is a schematic view showing a structure at a chip port of a washing machine in accordance with a seventh alternative embodiment of the present invention.

Fig. 28 is a schematic view showing a structure at a chip port of a washing machine in accordance with an eighth alternative embodiment of the present invention.

Fig. 29 is a schematic view showing a structure at a chip port of a washing machine in accordance with a ninth alternative embodiment of the present invention.

Reference numerals:

A washing machine 1,

Outer tub 100, drain 110, clearance cavity 120,

Inner cylinder 200, chip discharge port 210, washing cavity 220, water containing cavity 230, large water permeable hole 240, small water permeable hole 250,

Impeller 300, water replenishing hole 310, disk surface water replenishing hole 311, rib portion water replenishing hole 312, water draining rib 320, inner edge section 321, outer edge section 322, wheel disk 330, water draining rib 340, first water draining surface 341, second water draining surface 342, wheel bottom annular reinforcing rib 350, wheel bottom radial reinforcing rib 360,

The one-way valve plate 400, the sheet 410, the weight increasing part 420, the rotating shaft 430, the hook 440, the sheet reinforcing rib 450, the stop surface 460, the accommodating groove 470, the limiting structure 480,

The waterfall spraying cover 500, the waterfall spraying flow passage 510, the water inlet 511, the spray hole 512, the boss 520, the chip removing channel 530, the chip removing guide part 531, the chip removing flow blocking part 532, the waterfall spraying channel 540, the waterfall spraying guide part 541, the waterfall spraying flow blocking part 542,

Drainage wings 600, cylindrical bottom annular ribs 610, cylindrical bottom radial ribs 620,

The barrel 710, the barrel bottom 720, the mounting opening 721, the boss 722, the flange 730, the central region 740, the rotary shaft hole 741, the screw hole 742, the middle edge region 750, the outer edge region 760, the peripheral positioning slot 761, the boss 762, the limiting hole 763, the transition ring 770,

A drive assembly 800, a drive shaft 810.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more, and the meaning of "a number" is at least one.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

A washing machine 1 according to an embodiment of the present invention is described below with reference to fig. 1 to 26.

In some embodiments of the present invention, as shown in fig. 1 to 6, a washing machine 1 according to an embodiment of the present invention includes an outer tub 100, an inner tub 200, and a pulsator 300.

The outer tub 100 is provided with a drain port 110, and the drain port 110 may be provided at the bottom wall of the outer tub 100 at the outer periphery of the bottom wall of the outer tub 100. The inner tub 200 is rotatably provided in the outer tub 100, and a clearance cavity 120 is defined between the inner tub 200 and the outer tub 100, for example, the clearance cavity 120 is formed between an outer circumferential surface of the inner tub 200 and an inner circumferential surface of the outer tub 100 and between an outer bottom surface of the inner tub 200 and an inner bottom surface of the outer tub 100, the clearance cavity 120 communicates with the drain outlet 110, the inner tub 200 is provided with a chip discharge port 210, and the chip discharge port 210 communicates an inner space of the inner tub 200 with the clearance cavity 120.

The pulsator 300 is rotatably disposed in the inner tub 200, and the pulsator 300 defines a washing chamber 220 above the pulsator 300 and a water chamber 230 below the pulsator 300 in the inner tub 200, and it is understood that the space in the inner tub 200 is divided into two parts by taking the pulsator 300 as a boundary, the washing chamber 220 is located above the pulsator 300, and the water chamber 230 is located below the pulsator 300, that is, the water chamber 230 is defined between the lower surface of the pulsator 300 and the inner bottom surface of the inner tub 200. The water containing cavity 230 is communicated with the clearance cavity 120 through the chip removal port 210, the impeller 300 is provided with a plurality of water supplementing holes 310 communicated with the washing cavity 220 and the water containing cavity 230, and the bottom of the impeller 300 is provided with a plurality of water draining ribs 320 extending into the water containing cavity 230. When the pulsator 300 rotates, the water drainage ribs 320 push the fluid in the water containing cavity 230 to enter the gap cavity 120 from the chip discharge port 210, and the fluid in the washing cavity 220 is supplemented into the water containing cavity 230 from the water supplementing holes 310.

Wherein the cross-sectional area (i.e., flow area) of the individual water replenishment holes 310 is 10mm ²～20mm².

A chip discharging process of the washing machine 1 according to an embodiment of the present invention will be described with reference to fig. 2.

When the washing machine 1 washes, the pulsator 300 rotates, the drain ribs 320 rotate along with the pulsator 300, and water in the water containing cavity 230 is pushed by the drain ribs 320 to perform centrifugal motion, so that water flow is pushed into the gap cavity 120 from the chip discharge port 210, and wire scraps in the inner barrel 200 are discharged between the inner barrel 200 and the outer barrel 100 along with the water flow. In this process, a large negative pressure is generated in the water containing chamber 230, so that the water flow in the washing chamber 220 is promoted to flow from the water supplementing hole 310 to the water containing chamber 230, so that the reduced water in the water containing chamber 230 is supplemented, and the whole water flow circulation is maintained. After the pulsator 300 stops rotating, the lint in the water entering the interstitial cavity 120 gradually settles to the bottom of the outer tub 100, and the lint in the interstitial cavity 120 is automatically discharged from the water outlet 110 along with the water flow when the water is discharged.

For the washing machine with the water permeable holes on the side wall of the inner drum 200, after the pulsator 300 stops rotating, water flow in the gap cavity 120 enters the washing cavity 220 through the water permeable holes, and due to the smaller cross-sectional area of the water permeable holes, the water flow has a certain capacity of filtering thread scraps, and the thread scraps cannot return to the washing cavity 220 again along with the water flow, but gradually settle to the bottom of the outer drum 100.

According to the washing machine 1 of the embodiment of the invention, the automatic cleaning of the thread scraps is completed by the time separation principle, namely, during washing, the thread scraps enter the clearance cavity 120 from the washing cavity 220 through the chip discharge port 210, and during water discharge and dehydration, the thread scraps in the clearance cavity 120 are discharged from the water discharge port 110 by utilizing the washing water, so that the flow rate of the water flow in the washing cavity 220 flowing into the clearance cavity 120 is improved by the way of centrifugally draining the water flow, and the thread scraps discharge rate is greatly improved.

Also, since the parameter setting of the water compensating hole 310 directly relates to whether the thread scraps can be discharged and the efficiency of the discharge, by defining the cross-sectional area of the water compensating hole on the pulsator, that is, the cross-sectional area of the single water compensating hole 310 is 10mm ²～20mm², preferably 13mm ²～18mm², and further defining the maximum span of the cross-section of the water compensating hole 310 to be not more than 6mm.

Therefore, on one hand, the water supplementing hole 310 can have a sufficiently large cross-sectional area, and the overall water flow resistance at the water supplementing hole 310 can ensure that the water flow in the washing cavity 220 can smoothly enter the water containing cavity 230 by combining the resistance generated when the impeller 300 rotates, so that the thread scraps can smoothly enter the water containing cavity 230;

On the other hand, the cross-sectional area of the water supplementing hole 310 is prevented from being too large, foreign matters such as coins and buttons remained in clothes are prevented from falling into the water supplementing hole 310, and the foreign matters are prevented from entering the water containing cavity 230 or the clearance cavity 120, so that the trouble that the foreign matters are difficult to take out is eliminated.

Experiments prove that the corresponding relation between the cross-sectional area of the single water supplementing hole 310 and the wire scrap discharge rate is as follows:

7mm ², and the chip discharge rate is 30%;

10mm ², and the chip discharge rate is 60%;

13mm ², and the chip discharge rate is 69%;

16mm ², and the chip discharge rate is 77%;

19mm ², and 81% of the thread scraps discharge rate.

In some embodiments of the present invention, as shown in fig. 5 and 6, the exhaust port 210 is provided at the bottom of the sidewall of the inner tub 200 such that the exhaust port 210 is located at the outer side of the water containing chamber 230 in the radial direction of the inner tub 200, so that the drain rib 320 pushes the washing water in the water containing chamber 230 from the exhaust port 210 into the clearance chamber 120 as the pulsator 300 rotates.

In order to further increase the chip discharge rate, the total cross-sectional area S0 of the individual chip discharge ports 210 is greater than 2500mm ², thereby ensuring the flow of water from the water chamber 230 into the clearance chamber 120, and thus improving the chip removal effect.

Experiments prove that the cross-sectional area of the single chip ejection port 210 corresponds to the chip ejection rate as follows:

S0=2250mm ², lint retention 46.7%;

s0=2965 mm ², and the lint residual rate is 35.5%;

S0=3420mm ², the lint residual rate is 24.3%;

S0=3798 mm ², and the lint residual rate was 19.3%.

Alternatively, to further enhance the chip removal rate, the chip removal ports 210 may be provided in plurality and spaced apart along the circumference of the inner barrel 200.

Alternatively, the exhaust port 210 may be a grating-like through-hole, such as a transverse grating-like through-hole extending along the circumference of the inner barrel 200 as shown in fig. 28, and a vertical grating-like through-hole extending along the axial direction of the inner barrel 200 as shown in fig. 29, although the exhaust port 210 may be a separate through-hole as shown in fig. 27.

In some specific examples of the present invention, as shown in fig. 2 and 3, the clearance L between the pulsator 300 and the inner tub 200 in the radial direction of the pulsator 300 is 2.5mm to 3.5mm, i.e., the minimum distance between the outer circumferential edge of the pulsator 300 and the inner tub 200 is 2.5mm to 3.5mm, so that the lint in the water receiving chamber 230 can be prevented from overflowing from the outer circumferential edge of the pulsator 300 back to the washing chamber 220 when the pulsator 300 rotates, to secure the amount of lint entering the clearance chamber 120.

In some embodiments of the present invention, as shown in FIGS. 2 and 6, the inner barrel 200 includes a barrel 710, a bottom 720, and a flange 730.

The cross section of the barrel 710 is annular. The bottom 720 is mounted on the bottom of the barrel 710, and the side wall of the inner cylinder 200 may be composed of the barrel 710 and the bottom 720 together, or may be composed of the barrel 710 alone, with the exhaust port 210 being provided on the outer side surface of the bottom 720, and the bottom 720 having a mounting port 721 penetrating in the up-down direction. The flange 730 is mounted to the bottom 720 and covers the mounting opening 721, and the flange 730 and the bottom 720 together form the bottom wall of the inner cylinder 200. The driving assembly 800 may be mounted on the flange 730 and located below the flange 730, and the driving shaft 810 of the driving assembly 800 is connected to the pulsator 300 through the flange 730 upward to drive the pulsator 300 to rotate.

In some embodiments of the present invention, as shown in fig. 7 and 8, pulsator 300 includes a wheel plate 330 and a plurality of water-repellent ribs 340.

The wheel 330 is rotatably disposed in the inner cylinder 200, and the plurality of drain ribs 320 are disposed on a lower surface of the wheel 330. The upper surface of rim plate 330 is located to a plurality of water-shifting ribs 340, and water-shifting ribs 340 are a plurality of and set up along the circumference interval of rim plate 330, and every water-shifting rib 340 can extend along the radial of rim plate 330 generally, and a plurality of water-shifting ribs 340 stretch into washing chamber 220. Wherein, the water supplementing holes 310 are divided into a disc surface water supplementing hole 311 formed in the wheel disc 330 and a rib part water supplementing hole 312 formed in the water-shifting rib 340, and the disc surface water supplementing hole 311 and the rib part water supplementing hole 312 are all arranged in a plurality of ways.

Through setting up quotation moisturizing hole 311 and setting up muscle portion moisturizing hole 312 at the rim plate 330 and dialling water muscle 340, the interact with water when can make full use of impeller 300 is rotatory, makes more water get into water holding chamber 230 through moisturizing hole 310 to drive more thread bits and get into water holding chamber 230, in order to further improve the thread bits discharge rate.

In some specific examples of the present invention, as shown in fig. 8, the disk surface water supply holes 311 are distributed in a 7/10 radius area of the pulsator 300 from the center to the outer peripheral edge of the pulsator 300, and the rib water supply holes 312 are distributed in an 8/10 radius area of the pulsator 300 from the center to the outer peripheral edge of the pulsator 300.

In other words, the outer diameter of the pulsator 300 is R, two annular dividing lines concentric with the pulsator 300 are assumed on the pulsator 300, wherein one of the dividing lines has a radius R1, the other dividing line has a radius R2, r1=7/10R, r2=8/10R, the disc surface water supplementing holes 311 are distributed in the dividing line having a radius R1, and the rib water supplementing holes 312 are distributed in the dividing line having a radius R2.

Therefore, when the pulsator 300 rotates, the water draining rib 320 pushes the washing water in the water containing cavity 230 to perform centrifugal movement outwards along the radial direction of the inner cylinder 200, so that the disc surface water supplementing hole 311 and the rib part water supplementing hole 312 are limited in the above range, and the washing water in the water containing cavity 230 can be prevented from being returned to the washing cavity 220 from the disc surface water supplementing hole 311 and the rib part water supplementing hole 312 under the displacement of the water draining rib 320, so that the amount of thread scraps entering the clearance cavity 120 is ensured, and the thread scraps discharging rate is improved.

Further, in the radial direction of the pulsator 300, the disc surface water supply hole 311 located at the outermost side is located at a radius of 7/10 of the pulsator 300 from the center to the outer peripheral edge of the pulsator 300, and the rib water supply hole 312 located at the outermost side is located at a radius of 8/10 of the pulsator 300 from the center to the outer peripheral edge of the pulsator 300. That is, the outermost-disc-surface water supplementing hole 311 is located at the dividing line of the radius R1, and the outermost-bead water supplementing hole 312 is located at the dividing line of the radius R2. Therefore, the area occupied by the disc surface water supplementing hole 311 and the rib part water supplementing hole 312 is increased as much as possible under the condition that the washing water in the water containing cavity 230 cannot return to the washing cavity 220 from the disc surface water supplementing hole 311 and the rib part water supplementing hole 312, so that the water quantity entering the water containing cavity 230 is increased, and the thread scraps entering the water containing cavity 230 is increased.

Further, to further increase the chip discharge rate, the sum of the cross-sectional areas of the disk surface water supplementing holes 311 is 10% -20% of the projected area of the pulsator 300 in the horizontal plane, and the sum of the cross-sectional areas of the rib water supplementing holes 312 is greater than 8% of the projected area of the pulsator 300 in the horizontal plane.

In some specific examples of the present invention, as shown in fig. 7 and 8, the water-blocking rib 340 has a first water-blocking surface 341 and a second water-blocking surface 342, and the rib water-replenishing hole 312 is provided in the first water-blocking surface 341.

The first water-shifting surface 341 is obliquely arranged in the direction of the second water-shifting surface 342 from bottom to top, the second water-shifting surface 342 is obliquely arranged in the direction of the first water-shifting surface 341 from bottom to top, and the inclination angle of the first water-shifting surface 341 relative to the horizontal plane is larger than the inclination angle of the second water-shifting surface 342 relative to the horizontal plane; and/or

The center of the first water-shifting surface 341 along the length direction of the first water-shifting surface 341 is concave towards the second water-shifting surface 342, the center of the second water-shifting surface 342 along the length direction of the second water-shifting surface 342 is convex towards the direction away from the first water-shifting surface 341, and the radian of the first water-shifting surface 341 is larger than that of the second water-shifting surface 342.

Like this, not only avoid dialling water muscle 340 both sides trompil and lead to rivers to directly pass dialling water muscle 340 and do not get into holding water chamber 230, and first dialling surface 341 and the interact power of water great, first dialling surface 341 has great upward resistance to water, can collect more washing water and get into holding water chamber 230 to promote the line bits drain rate by a wide margin. In addition, the stirring effect of the water-drawing ribs 340 on the water flow is improved.

In some specific examples of the present invention, the water-repellent rib 340, the water-drainage rib 320 and the wheel disc 330 are integrally formed, and the bottom of the water-repellent rib 340 is formed with an upward recess, that is, it can be understood that the wheel disc 330 and the water-repellent rib 340 are formed by pressing and deforming a plate material to form the water-repellent rib 340 protruding upward, which is, of course, only for facilitating understanding of the structure of the pulsator 300, and not limiting the manufacturing process of the pulsator 300, and the wheel disc 330 may be formed by injection molding or other manners.

In some embodiments of the present invention, as shown in fig. 9 and 10, the drainage bars 320 are plural and radially distributed about the center of the pulsator 300, and each drainage bar 320 is divided into an inner edge section 321 and an outer edge section 322 along the length direction of the drainage bar 320, the inner edge section 321 being located in a 2/5 radius area of the pulsator 300 from the center to the outer peripheral edge of the pulsator 300, and the outer edge section 322 being located in a 3/5 radius area of the pulsator 300 from the outer peripheral edge to the center of the pulsator 300.

Specifically, as shown in fig. 10, the outer diameter of the pulsator 300 is R, an annular dividing line concentric with the pulsator 300 is assumed on the pulsator, the radius of the dividing line is R, R/r=2/5, the inner edge section 321 is located within the dividing line, and the outer edge section 322 is located between the dividing line and the outer peripheral edge of the pulsator 300.

As shown in fig. 9 and 10, the area of one side of the inner edge section 321 is S1, the area of one side of the outer edge section 322 is S2, and the area of one side S2 of the outer edge section 322 is not less than 1800mm ². It is understood that the single-side area of the inner edge section 321 and the single-side area of the outer edge section 322 refer to the areas of the surfaces of the inner edge section 321 and the outer edge section 322 where the water flow is stirred, as shown in fig. 9, each of the inner edge section 321 and the outer edge section 322, one of the two sides orthogonal to the radial direction of the pulsator 300. Since the outer circumference of the pulsator 300 is generally tilted upward, it is ensured that the outer side of the drain rib 320 has a sufficiently large water-repellent area, so that a sufficiently large negative pressure is generated when the pulsator 300 rotates, not only the amount of water flowing from the water-accommodating chamber 230 into the gap chamber 120, but also the amount of water flowing from the washing chamber 220 into the water-accommodating chamber 230 can be increased, thereby increasing the lint discharge rate.

Further, the single-side area S2 of the outer rim section 322 is not more than 3500mm ² to prevent the drain ribs 320 from occupying too much space in the inner tub 200, ensuring a washing capacity to ensure washing efficiency.

Optionally, the area of a single side of each drain rib 320 is 2500mm ²～4500mm², that is, s1+s2=2500 mm ²～4500mm², so as to enhance the draining effect of the drain ribs 320 on water flow.

In some specific examples of the present invention, as shown in fig. 9, the ratio of the single-side area S1 of the inner edge section 321 to the single-side area S2 of the outer edge section 322 is not more than 1/4, that is, S1/S2 is 1/4 or less, and the drainage capacity is stronger as the drainage rib 320 is located further to the outside, the area of the low efficiency region can be reduced by limiting the ratio of the single-side areas, so that the drainage flow of the drainage rib 320 can be totally and efficiently performed.

In some specific examples of the present invention, as shown in fig. 9 and 10, in order to enhance the structural strength of the pulsator 300, the bottom of the pulsator 300 is provided with a wheel bottom reinforcing rib to which the inner edge section 321 of the drain rib 320 is connected.

Specifically, the wheel bottom reinforcement includes a plurality of wheel bottom annular reinforcement ribs 350 and a plurality of wheel bottom radial reinforcement ribs 360.

Each of the under-wheel annular beads 350 extends in the circumferential direction of the pulsator 300, and a plurality of under-wheel annular beads 350 are coaxially disposed at the inner circumference of the pulsator 300. Each of the radial ribs 360 is disposed between two adjacent annular ribs 350 and connected to two adjacent annular ribs 350, the radial ribs 360 are disposed at intervals along the circumference of the pulsator 300, the radial ribs 360 may be arranged in one or more turns, the specific turns are determined by the number of annular ribs 350, and the number of turns is generally one less than the number of annular ribs 350. The inner edge section 321 of the drain rib 320 is connected to the outermost wheel-bottom annular bead 350, and the drain rib 320 extends from the outermost wheel-bottom annular bead 350 to the outer peripheral edge of the pulsator 300 in the radial direction of the pulsator 300.

Further, as shown in fig. 9, the bottom corners of the outer ends of the outer rim sections 322 of the drain ribs 320 are rounded to match the structure of the inner cylinder 200 and to avoid scratching other parts during rotation with the pulsator 300.

Alternatively, as shown in fig. 9, the lower edge of the inner edge section 321 is flush with the lower edge of the outer edge section 322 and is disposed along the horizontal direction, and the lower edge of the drain rib 320 is spaced from the inner bottom surface of the inner cylinder 200, so as to improve the uniformity of draining ribs 320 and water flow and avoid interference between the drain ribs 320 and the inner cylinder 200.

In some embodiments of the present invention, as shown in fig. 11 to 13, the washing machine 1 further includes a check valve sheet 400.

The check valve plate 400 is disposed on the inner cylinder 200 and is used for normally closing the exhaust port 210, and the check valve plate 400 is impacted by the fluid pushed by the water discharge rib 320 when the pulsator 300 rotates to open the exhaust port 210.

Specifically, the pulsator 300 rotates, the water drainage rib 320 rotates along with the pulsator 300, and water in the water containing cavity 230 is displaced by the water drainage rib 320 to perform centrifugal motion, so that the water is pushed to impact the one-way valve plate 400, the one-way valve plate 400 opens the chip discharge port 210, and washing water in the water containing cavity 230 enters the clearance cavity 120 from the chip discharge port 210. When the one-way valve plate 400 is not impacted by water flow, the chip discharge port 210 is closed to separate the water containing cavity 230 from the clearance cavity 120, so that the running reliability of other programs is ensured, and the chips in the clearance cavity 120 can be prevented from returning to the water containing cavity 230 from the chip discharge port 210.

Alternatively, the check valve sheet 400 may be made of plastic, and formed by injection molding, although other materials, such as metal, rubber, etc., may be used for the check valve sheet 400.

In some embodiments of the present invention, as shown in fig. 12, the check valve plate 400 is rotatably mounted to the inner cylinder 200 and normally closes the exhaust port 210 by its own weight.

Specifically, check valve sheet 400 includes a sheet 410 and a weighted portion 420. Blade 410 is rotatably mounted to inner barrel 200. The weight portion 420 is provided on the sheet 410, and the weight of the weight portion 420 may be 35% or more of the weight of the check valve sheet 400.

Therefore, by providing the weight increasing portion 420, the overall weight of the check valve plate 400 can be increased, and the check valve plate 400 can be ensured to be opened only when the pulsator 300 rotates to discharge water flow, and is not easy to be repeatedly opened and closed due to disturbance of small water flow, namely, the check valve plate 400 is ensured to be not easy to be disturbed by tiny water flow.

In some specific examples of the present invention, the sheet 410 is provided with a rotating shaft 430, the inner cylinder 200 is provided with a hook 440, the hook 440 forms a groove with an upward opening, two ends of the rotating shaft 430 respectively enter the groove from the opening to be rotatably matched with the hook 440, and the one-way valve plate 400 rotates around the rotating shaft 430 to realize the opening and closing of the chip discharge port 210.

For example, the cross section of the rotation shaft 430 is circular, the cross section of the groove formed by the hook 440 is semicircular, the opening is upward, and the radius of the rotation shaft 430 is at least 0.5mm smaller than the radius of the groove, so as to ensure that the check valve sheet 400 can be smoothly assembled and rotated in the groove. The opening of the groove is upward to ensure that the check valve sheet 400 does not slip out of the groove, so that the rotation contact area of the rotation shaft 430 is mainly the lower portion of the groove.

Further, the rotating shaft 430 is disposed at the upper edge of the tablet 410, and the weighting portion 420 is disposed at the surface of the tablet 410 facing away from the exhaust port 210 and at the lower edge of the tablet 410. On one hand, water flow which is conveniently displaced by the water drainage ribs 320 pushes the one-way valve plate 400 to open the chip removal port 210, on the other hand, the position of the weight increasing part 420 is selected to enable the whole gravity center of the one-way valve plate 400 to move downwards, so that the one-way valve plate 400 is not easily disturbed by tiny water flow, and the fitting degree of the one-way valve plate 400 when the chip removal port 210 is closed cannot be influenced by the arrangement of the weight increasing part 420.

In some specific examples of the present invention, as shown in fig. 12, the check valve sheet 400 further includes a sheet body reinforcing rib 450, where the sheet body reinforcing rib 450 is disposed on a surface of the sheet body 410 facing away from the exhaust port 210, so as to improve the structural strength of the check valve sheet 400 and increase the service life thereof.

Optionally, the number of the sheet body reinforcing ribs 450 is plural, each sheet body reinforcing rib 450 extends in the up-down direction, and the plural sheet body reinforcing ribs 450 are disposed at intervals in the horizontal direction, and it should be understood that the up-down direction and the horizontal direction are the directions when the one-way valve plate 400 closes the exhaust port 210. Of course, the arrangement of the sheet body reinforcing ribs 450 is not limited thereto, and the sheet body reinforcing ribs 450 may be arranged in other manners, such as extending horizontally, etc.

In some specific examples of the present invention, as shown in fig. 11 to 13 and 15, in order to arrange the check valve sheet 400 within the inner cylinder 200 without interference with other components, the outer surface of the inner cylinder 200 is provided with a receiving groove 470, and the check valve sheet 400 is positioned within the receiving groove 470, for example, the receiving groove 470 is provided at the outer side surface of the inner cylinder 200 and penetrates the outer bottom surface of the inner cylinder 200, i.e., the receiving groove 470 is provided at the cylinder bottom 720.

Further, as shown in fig. 11-13, the inner cylinder 200 is configured with a stop surface 460, a similar door frame structure surrounding the exhaust port 210 can be disposed in the receiving groove 470, the stop surface 460 is formed on the door frame structure, the stop surface 460 stops on the inner side of the check valve 400 when the check valve 400 closes the exhaust port 210, that is, the stop surface 460 stops on the closing side of the check valve 400, so that excessive rotation of the check valve 400 to the closing side is avoided, and the sealing effect of the check valve 400 on the exhaust port 210 is improved when the check valve 400 is closed

Still further, the inner cylinder 200 is provided with a limiting structure 480, and the limiting structure 480 is used for limiting the maximum opening of the unidirectional valve sheet 400 for opening the chip discharge port 210, that is, limiting the maximum opening of the unidirectional valve sheet 400 by stopping the limiting structure 480 on the opening side of the unidirectional valve sheet 400, so as to avoid excessive rotation of the unidirectional valve sheet 400 to the opening side and interference with the outer cylinder 100. The stopper 480 may be formed at a sidewall of the receiving groove 470 to protrude inward of the receiving groove 470, for example, may be formed at both sidewalls of the receiving groove 470 opposite to each other in the radial direction of the inner cylinder 200.

Specifically, as shown in fig. 13, when the check valve sheet 400 is at the maximum opening degree due to the stopper of the stopper structure 480, the maximum distance d1 between the check valve sheet 400 and the central axis of the inner cylinder 200 in the radial direction of the inner cylinder 200 is not greater than the maximum radius d2 of the inner cylinder 200. Preferably, d1 < d2. Thereby ensuring a safe collision margin to prevent the check valve sheet 400 from being damaged due to contact with the outer tub 100 when the opening degree thereof is too large.

In some embodiments of the present invention, as shown in fig. 14-16, the washing machine 1 further includes a waterfall cover 500.

The waterfall cover 500 is disposed in the inner tub 200 and defines a waterfall-spraying flow passage 510, and the waterfall-spraying flow passage 510 has a water inlet 511 communicating with the water containing chamber 230 and a spray hole 512 communicating with the washing chamber 220. For example, the waterfall cover 500 and the inner side surface of the inner tub 200 together define a waterfall flow passage 510, and a water inlet 511 is provided at the lower end of the waterfall cover 500. When the pulsator 300 rotates, a part of washing water can be extruded into the waterfall spraying flow passage 510 through the water inlet 511, and the water in the waterfall spraying flow passage 510 ascends and is sprayed to the washing cavity 220 from the spray hole 512 under the centrifugal force of the rotation of the inner cylinder 200, thereby improving the washing effect.

Optionally, the waterfall shield 500 is disposed radially opposite the exhaust port 210 from the inner barrel 200.

In some specific examples of the invention, as shown in fig. 15 and 16, the inner barrel 200 is configured to:

when the pulsator 300 rotates in one of the clockwise and counterclockwise directions, the inner cylinder 200 guides the fluid in the water chamber 230 to the exhaust port 210 and blocks the fluid in the water chamber 230 from flowing to the water inlet 511;

When the pulsator 300 rotates in the other of the clockwise direction and the counterclockwise direction, the inner cylinder 200 guides the fluid in the water chamber 230 to the water inlet 511 and blocks the fluid in the water chamber 230 from flowing to the exhaust port 210.

Because the structure of automatically removing the chips has a certain influence on the waterfall water flow, the resistance of the water flow discharged from the chip discharge port 210 is low, the resistance of the water flow sprayed from the spray hole 512 is large, and the water flow sprayed from the spray hole 512 needs to overcome the lift resistance and the self gravity, so the waterfall water flow can be greatly reduced.

In an embodiment of the present invention, when the pulsator 300 rotates in one direction, one of the functions of spraying and removing the chips is weakened, and the other function is reinforced, and vice versa. In this way, the steering of the pulsator 300 can be adjusted, so that the requirement of washing clothes by spraying waterfall water flow can be met, and a good thread scrap discharge rate can be ensured, so that the clothes are not adhered with thread scraps, and a high washing degree is ensured.

Specifically, as shown in fig. 16, the outer periphery of the inner bottom surface of the inner tube 200 is provided with a boss 520 extending in the circumferential direction of the inner tube 200, the boss 520 is provided around the pulsator 300, and the distance L between the outer peripheral edge of the pulsator 300 and the boss 520 is 2.5mm to 3.5mm. The boss 520 is provided with a chip removal channel 530 communicating the water containing cavity 230 with the chip removal port 210 and a waterfall spraying channel 540 communicating the water containing cavity 230 with the water inlet 511, i.e. the boss 520 is not in a closed-loop structure but in an open-loop structure due to the arrangement of the chip removal channel 530 and the waterfall spraying channel 540.

Wherein, as shown in fig. 16, one side wall of the chip removing passage 530 is configured to guide the fluid in the water containing cavity 230 to the chip removing guide portion 531 of the chip removing port 210, and the other side wall of the chip removing passage 530 is configured to block the fluid in the water containing cavity 230 from flowing to the chip removing flow blocking portion 532 of the chip removing port 210, and the chip removing guide portion 531 and the chip removing flow blocking portion 532 are sequentially distributed in the one of the clockwise direction and the counterclockwise direction.

Further, one side wall of the waterfall channel 540 is configured to guide the fluid in the water containing cavity 230 to the waterfall guiding portion 541 of the water inlet 511, and the other side wall of the waterfall channel 540 is configured to block the fluid in the water containing cavity 230 from flowing to the waterfall blocking portion 542 of the water inlet 511, and the waterfall guiding portion 541 and the waterfall blocking portion 542 are sequentially distributed along the other direction of the clockwise direction and the counterclockwise direction.

In other words, along the circumference of the inner barrel 200, the chip removal flow blocking portion 532, the chip removal flow guiding portion 531, the waterfall flow guiding portion 541, and the waterfall flow blocking portion 542 may be sequentially arranged.

Specifically, as shown in fig. 16, the outer end of the chip ejection guide portion 531 is offset in the one of the clockwise direction and the counterclockwise direction with respect to the inner end of the chip ejection guide portion 531. The outer end of the chip-blocking portion 532 is offset in the one of the clockwise direction and the counterclockwise direction relative to the inner end of the chip-blocking portion 532.

The outer end of the waterfall diversion portion 541 is offset in the other of the clockwise direction and the counter-clockwise direction relative to the inner end of the waterfall diversion portion 541. The outer end of the waterfall-blocking portion 542 is offset in the other of the clockwise direction and the counterclockwise direction relative to the inner end of the waterfall-blocking portion 542.

For example, in the example shown in fig. 16, the chip removal guide portion 531 and the chip removal flow blocking portion 532 are disposed obliquely in the counterclockwise direction, and the waterfall guide portion 541 and the waterfall flow blocking portion 542 are disposed obliquely in the clockwise direction.

Referring to fig. 16, when the pulsator 300 rotates clockwise, the water flow is difficult to enter the chip removing channel 530 due to the blocking of the chip removing and flow blocking portion 532, and the water flow is easily entering the waterfall spraying channel 540 and finally sprayed from the spray hole 512 under the guiding action of the waterfall spraying and flow guiding portion 541, so that most of the centrifugal water flow which is discharged by the rotation of the pulsator 300 is converted into waterfall spraying water flow, and the washing of the clothes is enhanced.

When the impeller 300 rotates anticlockwise, the water flow is difficult to enter the waterfall channel 540 due to the blocking of the waterfall blocking part 542, and the water flow is easily enters the chip removal port 210 under the guiding effect of the chip removal guiding part 531, so that the discharge of the thread scraps is facilitated.

Alternatively, the chip removal guide portion 531, the chip removal choke portion 532, the waterfall guide portion 541, and the waterfall choke portion 542 may all be configured as straight inclined surfaces. The chip removal guide part 531, the chip removal flow blocking part 532, the waterfall spraying guide part 541 and the waterfall spraying flow blocking part 542 can all be constructed into arc structures, specifically, in the cross section of the inner barrel 200, the chip removal guide part 531 is in an arc shape protruding towards the direction of the chip removal channel 530, the chip removal flow blocking part 532 is in an arc shape recessed towards the direction away from the chip removal channel 530, the waterfall spraying guide part 541 is in an arc shape protruding towards the direction of the waterfall spraying channel 540, and the waterfall spraying flow blocking part 542 is in an arc shape recessed towards the direction away from the waterfall spraying channel 540.

In other embodiments of the present invention, as shown in fig. 17 and 18, the inner cylinder 200 is provided with water permeable holes, and in particular, the sidewall of the inner cylinder 200 is provided with a large water permeable hole 240 and a small water permeable hole 250, and the minimum cross-sectional area of the large water permeable hole 240 is larger than the minimum cross-sectional area of the small water permeable hole 250, i.e., the flow area of the large water permeable hole 240 is larger than the flow area of the small water permeable hole 250, the large water permeable hole 240 is located at the upper portion of the inner cylinder 200, and the small water permeable hole 250 is located at the lower portion of the inner cylinder 200. It should be understood that the upper and lower parts of the inner tube 200 may be defined by a central dividing line in the height direction of the inner tube 200, the upper part of the dividing line being the upper part of the inner tube 200, the lower part of the dividing line being the lower part of the inner tube 200, and the dividing line being finely adjustable in the up-down direction rather than being entirely at the center, as long as the structure in which the upper water-permeable hole is large and the lower water-permeable hole is small is formed on the whole of the inner tube 200.

Therefore, the structure that the large water permeable hole 240 is arranged at the upper part of the inner cylinder 200 and the small water permeable hole 250 is arranged at the lower part of the inner cylinder can ensure that the water flow with the thread scraps enters the clearance cavity 120 through the chip discharge port 210, and the thread scraps are not easy to return to the inner cylinder 200 again under the resistance action of the small water permeable hole 250, so that the thread scraps are deposited or suspended in the clearance cavity 120, and are automatically discharged along with the water flow during water discharge. Meanwhile, due to the centrifugal climbing effect during dehydration, the large water permeable holes 240 at the upper part of the inner cylinder 200 can ensure good dehydration efficiency.

Specifically, as shown in FIG. 17, the 1/2 to 3/5 of the overall height of the inner tube 200 is defined as a dividing line, the large water permeable holes 240 are located above the dividing line, and the small water permeable holes 250 are located below the dividing line. Specifically, the overall height of the inner tub 200 is H, the height of the parting line from the bottom of the inner tub 200 to the top is H, H/h=1/2 to 3/5, the large water permeable holes 240 are located above the parting line and the small water permeable holes 250 are located below the parting line, so that not only the lint discharge rate but also the dewatering efficiency can be ensured.

Alternatively, the smallest cross-sectional area of the large water permeable holes 240 is 3mm ²～9.5mm² and the smallest cross-sectional area of the small water permeable holes 250 is 0.1mm ²～3mm².

In some specific examples of the present invention, as shown in fig. 17 and 18, the large water permeable holes 240 and the small water permeable holes 250 are arranged in a plurality of columns on the side wall of the inner cylinder 200, each column being arranged along the axial direction of the inner cylinder 200 and the plurality of columns being arranged at intervals along the circumferential direction of the inner cylinder 200.

In some embodiments of the present invention, as shown in fig. 19-21, the outer bottom surface of the inner cylinder 200 is provided with a plurality of drainage wings 600, i.e., the bottom of the bottom 720 is provided with drainage wings 600, and a pressure difference is formed in the clearance cavity 120 when the plurality of drainage wings 600 rotate with the inner cylinder 200, so that the fluid in the water containing cavity 230 enters the clearance cavity 120 through the exhaust ports 210.

Specifically, during the washing process, the inner tub 200 is controlled to rotate at a certain speed by the program, the drain wings 600 rotate with the inner tub 200, and the water level in the clearance cavity 120 is greatly increased due to the drain wings 600, so that a relatively low pressure area is formed at the bottom of the clearance cavity 120, and a sufficient pressure gradient is formed between the water containing cavity 230 and the relatively low pressure area, so that water in the water containing cavity 230 is discharged into the clearance cavity 120 through the chip discharge port 210, and meanwhile, water in the washing cavity 220 is supplemented into the water containing cavity 230 through the disk surface water supplementing holes 311 and the rib water supplementing holes 312. After the inner tub 200 stops rotating, the water flow in the clearance cavity 120 returns to the washing cavity 220, and the lint is blocked by the water permeable holes of the inner tub 200 and is difficult to enter the washing cavity 220, so that the lint is temporarily retained in the clearance cavity 120, and is discharged with the water flow during drainage.

Therefore, the mode that the water draining wings 600 at the bottom of the inner cylinder 200 are used for draining water to form a relatively low-pressure area is adopted, so that the chip removal efficiency and the chip removal amount are improved, the arrangement of the water draining wings 600 is more flexible, the optional space is larger, the water flow replacement rate of the water containing cavity 230 and the clearance cavity 120 can be greatly improved, and the chip removal rate is improved.

Those skilled in the art will appreciate that the manner of the drainage wings 600 and the manner of the drainage bars 320 may be alternatively or simultaneously.

Further, as shown in fig. 19 to 21, the drainage wings 600 are provided in plurality and at intervals in the circumferential direction of the inner cylinder 200 at the outer periphery of the outer bottom surface of the inner cylinder 200. The drainage wings 600 are farther from the center of the inner cylinder 200, the centrifugal force generated is greater, and by providing a greater number of drainage wings 600, the amount of water flow that is agitated can be increased.

Optionally, the area of the single side of each drainage wing 600 is 400mm ²～1200mm², i.e. the water-repellent area of the drainage wing 600 is 400mm 2-1200 mm ², and the sum of the areas of the single sides of the plurality of drainage wings 600 is 12000mm ²～36000mm², thereby ensuring better lint removal and strength of the individual drainage wings 600.

In some specific examples of the invention, as shown in fig. 20 and 21, in the cross-section of the inner barrel 200, the outer ends of the drainage wings 600 are offset in the circumferential direction of the inner barrel 200 relative to the inner ends of the drainage wings 600, i.e., the drainage wings 600 are disposed obliquely relative to the radial direction of the inner barrel 200.

Alternatively, as shown in fig. 20, in the cross section of the inner barrel 200, the drainage wing 600 is in a straight line, and the included angle α between the drainage wing 600 and the radial line where the inner end of the drainage wing 600 is located is-60 ° to 60 °, i.e., the included angle α between the line connecting the inner end of the drainage wing 600 and the center of the inner barrel 200 and the length direction of the drainage wing 600 is-60 ° to 60 °. When α is positive, the inclination direction of the drain wing 600 is the same as the rotation direction of the inner cylinder 200, and the power consumption is low; when α is negative, the inclination direction of the drain wings 600 is opposite to the rotation direction of the inner cylinder 200, and the lint discharge rate is high.

Alternatively, as shown in fig. 21, in the cross section of the inner tub 200, the drainage wings 600 are arc-shaped, and the angle β between the tangent line of the inner end of the drainage wings 600 and the tangent line of the outer end of the drainage wings 600 is 60 ° to 120 °, so that the centrifugal water flow can be generated more and the power consumption is less.

In some specific examples of the present invention, as shown in fig. 19 to 21, in order to enhance the structural strength of the inner cylinder 200, the outer bottom surface of the inner cylinder 200 (i.e., the bottom of the bottom 720) is provided with bottom ribs to which the drain wings 600 are connected.

Specifically, the bottom stiffener includes a plurality of bottom annular stiffeners 610 and a plurality of bottom radial stiffeners 620.

Each of the bottom annular beads 610 extends in the circumferential direction of the inner cylinder 200, and a plurality of the bottom annular beads 610 are coaxially disposed. Each of the bottom radial ribs 620 is disposed between two adjacent bottom annular ribs 610 and is connected to two adjacent bottom annular ribs 610, respectively. The plurality of radial ribs 620 are disposed at intervals along the circumferential direction of the inner cylinder 200, and the plurality of radial ribs 620 may be arranged in one or more turns, and the specific number of turns is determined by the number of annular ribs 610 at the bottom of the cylinder, and typically, the number of turns is one less than the number of annular ribs 610 at the bottom of the cylinder. The drainage wings 600 are connected to the outermost bottom annular bead 610, and the drainage wings 600 extend from the outermost bottom annular bead 610 to the outer circumferential edge of the inner barrel 200 in the radial direction of the inner barrel 200.

In some embodiments of the present invention, as shown in FIGS. 22-24, the inner barrel 200 includes a barrel 710, a bottom 720, and a flange 730.

The cross section of the barrel 710 is annular. The cartridge bottom 720 is mounted to the bottom of the cartridge body 710, and the cartridge bottom 720 has a mounting opening 721. The flange 730 is divided into a central region 740, a middle rim region 750, and an outer rim region 760 from inside to outside in the radial direction of the flange 730, the middle rim region 750 surrounding the central region 740, and the outer rim region 760 surrounding the middle rim region 750. The flange 730 is mounted to the tub bottom 720 through an outer rim area 760, and the middle rim area 750 and the central area 740 cover the mounting opening 721 together, the middle rim area 750 being constructed as a non-porous structure, and the central area 740 being used to mount the driving assembly 800 of the pulsator 300. In other words, the flange 730 has a closed structure without holes except for the holes required for installation, for example, the holes provided for installing the flange 730 on the inner cylinder 200 and the holes provided for installing the flange 730 and the driving unit 800, that is, the water through holes are not provided in the flange 730. Thus, the circulation of water flow can be completely blocked, so that the thread scraps in the clearance cavity 120 cannot return to the washing cavity 220 again through the flange 730, the thread scraps removal rate is improved, meanwhile, the flange 730 without the water through holes can improve the eccentric resistance of the inner barrel 200, and the structure is simple, the stamping die is simple in process, the working procedures are few, and the production process complexity and the production cost are reduced.

Specifically, in order to satisfy the requirements of draining water and improving the rigidity of the inner barrel, the existing flange plate water opening holes are wide in distribution range, the area of a single opening hole is small, if the existing flange plate is applied to the washing machine 1 in the invention, line scraps in the space below the pulsator are easy to remain on the upper part of the flange plate due to viscous resistance of water, a large amount of line scraps are easy to be mixed in the matching part of the flange plate and the barrel bottom after washing for many times, a machine body is polluted, meanwhile, the bottom cavity center between the outer barrel and the inner barrel is communicated with the space center area below the pulsator after the flange plate is opened, when the pulsator rotates to wash clothes, water in the back cavity of the pulsator is thrown to the periphery due to centrifugal force, a negative pressure area is formed in the center area, water flow in the center area of the bottom cavity between the outer barrel and the inner barrel and water flow in the washing cavity is respectively upwards and downwards towards the space center area below the pulsator due to the action of pressure difference, and the upwards water supplementing mode can enable part of the line scraps to be mixed in the space below the pulsator to pollute the machine, and the water flow rate of the water flowing into the washing cavity is greatly reduced when the pulsator stops rotating and the washing cavity is downwards towards the upper part of the water supplementing line.

According to the flange 730 of the washing machine 1 provided by the embodiment of the invention, the arrangement of the water-free holes can prevent the thread scraps from entering the water containing cavity 230 from the through holes, when the pulsator 300 rotates, only the water supplementing holes 310 of the pulsator 300 supplement water to the water containing cavity 230 to maintain pressure balance, and the negative pressure formed after the water quantity in the washing cavity is reduced is supplemented by the water flow of the clearance cavity 110 through the inner barrel water-permeable holes, so that the thread scraps returned to the washing cavity 220 are only about 7-8%, thereby effectively improving the discharge rate of the thread scraps and greatly reducing the residual rate of the thread scraps in the washing cavity 220 and the water containing cavity 230. In addition, lint and dirt are less likely to remain on the flange 730.

In addition, the rigidity of the inner cylinder can be reduced by the existing flange plate with the water holes, especially, the influence of the large holes in the concentrated area on the rigidity of the inner cylinder is larger, so that under the condition that eccentricity occurs during clothes washing and dewatering, the risk of cylinder collision is greatly improved, the open hole area on the flange plate is required not to be too large, the open hole on the flange plate is required to be widely distributed, but the open hole area on the flange plate is not too small in order to achieve the drainage speed, the open hole area of the flange plate is set to be an intermediate value, and the drainage speed and cylinder eccentricity cylinder collision index cannot reach an optimal value.

According to the flange 730 of the washing machine 1 provided by the embodiment of the invention, the risk of collision of the drum can be greatly reduced by the flange 730 without the water through holes, the washing safety performance is improved, meanwhile, during drainage, the water flow gravity is utilized, the water discharge action is performed after the one-way valve plate 400 is opened on the chip discharge port 210, the opening area of the chip discharge port 210 can be set larger, rapid drainage is facilitated, and the drainage speed is improved.

In some specific examples of the present invention, as shown in fig. 23 and 24, the outer edge area 760 is provided with a plurality of peripheral positioning slots 761 for positioning with the cartridge bottom 720, the plurality of peripheral positioning slots 761 are disposed at intervals along the circumferential direction of the outer edge area 760, the outer edge area 760 may be further provided with a plurality of protrusions 762 protruding upward, and the plurality of peripheral positioning slots 761 are disposed at the plurality of protrusions 762, respectively. The peripheral edge 760 is further provided with a plurality of retaining holes 763, the retaining holes 763 being engaged with the protrusions 722 of the cartridge bottom 720 (as shown in fig. 21).

The middle edge region 750 is provided with a rotation shaft hole 741 through which the driving shaft 810 of the pulsator 300 passes, and the center region 740 is further provided with a plurality of screw holes 742 for fixing the driving assembly 800 of the pulsator 300, the plurality of screw holes 742 being spaced around the rotation shaft hole 741.

In some embodiments of the present invention, as shown in fig. 22-24, the central region 740 is located at the same level as the middle edge region 750 and higher than the outer edge region 760, the middle edge region 750 and the outer edge region 760 are connected by a transition ring 770 that is inclined with respect to the horizontal, and the cartridge bottom 720 is configured with an inclined surface that mates with the transition ring 770. Thereby improving the tightness of the coupling of the flange 730 with the bottom 720 and saving space under the inner cylinder 200 to facilitate the installation of the driving assembly 800.

Further, the transition ring 770 is constructed in a non-porous structure to prevent wash water and lint entrained therein in the interstitial chamber 120 from being returned to the wash chamber 220 by the flange 730.

Optionally, to avoid stress concentrations and scratching other components, the transition ring 770 is rounded with the mid-edge region 750 and the transition ring 770 is rounded with the outer edge region 760, respectively.

In some specific examples of the present invention, as shown in fig. 23 and 24, the outer contours of the mounting opening 721 and the middle rim area 750 are in a shape-adapted circular shape, the outer contour of the outer rim area 760 is in a rectangular shape, and the inner contour of the outer rim area 760 is in a shape-adapted circular shape with the outer contour of the middle rim area 750, so that it is convenient to cover the mounting opening 721, reduce resistance to water flow, and facilitate the stability of mounting the flange 730 and the inner cylinder 200.

The flange 730 is integrally formed with the central region 740, the middle edge region 750, the outer edge region 760 and the transition ring 770, so as to improve the structural strength of the flange 730 and simplify the manufacturing process and cost of the flange 730.

In some embodiments of the present invention, as shown in FIGS. 25 and 26, the inner barrel 200 includes a barrel 710, a bottom 720, and a flange 730.

The cross section of the barrel 710 is annular. The cartridge bottom 720 is mounted to the bottom of the cartridge body 710, and the cartridge bottom 720 has a mounting opening 721. The flange 730 is integrally formed with the cartridge bottom 720 by being embedded in the cartridge bottom 720, and the flange 730 covers the mounting port 721. Therefore, the combination gap between the flange 730 and the cylinder bottom 720 can be eliminated, and the thread scraps are prevented from being mixed in the gap between the flange 730 and the cylinder bottom 720, so that the discharge of the thread scraps is facilitated on one hand, and the cleaning of the washing environment of the washing machine 1 can be ensured on the other hand.

Specifically, the flange 730 is a metal member, the bottom 720 is a plastic member, and the flange 730 is embedded in the bottom 720 by injection molding. The cost is greatly reduced compared with the integral inner cylinder bottom which is completely made of metal by adopting the mixture of different materials.

In some specific examples of the present invention, as shown in fig. 25 and 26, the flange 730 is divided into a central region 740, a middle edge region 750 and an outer edge region (in this embodiment, the outer edge region is not shown because of the angle of the drawing) from inside to outside in the radial direction of the flange 730, the flange 730 is embedded in the drum bottom 720 through the outer edge region, the middle edge region 750 and the central region 740 jointly cover the mounting opening 721, the middle edge region 750 is configured as a non-porous structure, and the central region 740 is used for mounting the driving assembly 800 of the pulsator 300. In other words, the flange 730 is a closed type mechanism without holes except for the holes required for installation, for example, the holes required for installing the flange 730 and the driving assembly 800, that is, no water holes are provided on the flange 730.

Thus, the flange 730 and the bottom 720 are integrated to form a closed inner and outer space, and when the pulsator 300 rotates, the water flow with the thread scraps enters the gap cavity 120 from the washing cavity 220 through the chip discharge port 210, and the water flow can only move downwards from the washing cavity 220 to the water containing cavity 230 so as to supplement the reduced water flow in the water containing cavity 230. When the pulsator 300 stops rotating, the chip discharge port 210 is closed by the one-way valve plate 400, and water flow in the clearance cavity 120 can only return to the inner cylinder 200 through the water permeable holes, so that the function of filtering the thread chips is achieved.

Moreover, the existing flange plate is provided with the water through holes, so that the strength of the flange plate is increased by thickening or arranging an uneven structure to ensure the overall structural strength, and the height of the flange plate is higher, and the occupied space is larger. In contrast, according to the flange 730 of the washing machine 1 of the embodiment of the present invention, since the flange 730 has a structure without water holes, a thicker and uneven structure is not required, thereby reducing the occupied space. For example, flange 730 may be a flat plate package having a maximum height (i.e., thickness) of 5mm to 10mm, which is much less than the thickness of the existing flange of about 32mm, resulting in significant space savings.

In some specific examples of the present invention, the central region 740 is provided with a rotation shaft hole 741 through which the driving shaft 810 of the pulsator 300 passes, and the central region 740 is further provided with a plurality of screw holes 742 for fixing the driving assembly 800 of the pulsator 300, the plurality of screw holes 742 being spaced around the rotation shaft hole 741.

In some embodiments of the present invention, as shown in fig. 25 and 26, the outer contours of the mounting opening 721 and the flange 730 are in a shape-adapted circular shape, so that the mounting opening 721 is conveniently covered, the resistance to water flow is reduced, and the flange 730 and the inner cylinder 200 are conveniently embedded.

The flange 730 is integrally formed with the central region 740, the middle edge region 750, and the outer edge region 760, so as to improve the structural strength of the flange 730 and simplify the manufacturing process and cost of the flange 730.

Other constructions, operations, etc. of the washing machine 1 according to the embodiment of the present invention are known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A washing machine, comprising:

the outer barrel is provided with a water outlet;

The inner cylinder is rotatably arranged in the outer barrel, and the side wall of the inner cylinder is provided with a water permeable hole; a clearance cavity communicated with the water outlet is defined between the inner cylinder and the outer cylinder, and the inner cylinder is provided with a chip discharge port;

The impeller is rotatably arranged in the inner cylinder, a washing cavity positioned above the impeller and a water containing cavity positioned below the impeller are defined in the inner cylinder, the water containing cavity is communicated with the clearance cavity through the chip removal port, the impeller is provided with a plurality of water supplementing holes communicated with the washing cavity and the water containing cavity and a plurality of water draining ribs extending into the water containing cavity, and when the impeller rotates, the water draining ribs push fluid in the water containing cavity to enter the clearance cavity through the chip removal port, and the fluid in the washing cavity is supplemented into the water containing cavity through the water supplementing holes;

the one-way valve plate is arranged on the inner cylinder and is used for normally closing the chip removal port, the one-way valve plate is opened by fluid impact pushed by the drainage rib along with rotation of the impeller, and a limiting structure for limiting the maximum opening of the chip removal port of the one-way valve plate is arranged on the inner cylinder.

2. The washing machine as claimed in claim 1, wherein the exhaust port is provided at a bottom of a sidewall of the inner tub.

3. The washing machine as claimed in claim 1, wherein the one-way valve plate is rotatably installed to the inner tub and normally closes the exhaust port by its own weight.

4. A washing machine as claimed in claim 3, wherein the one-way valve plate comprises:

the sheet body is rotatably mounted on the inner cylinder;

and the weight increasing part is arranged on the sheet body.

5. The washing machine as claimed in claim 4, wherein the sheet body is provided with a rotation shaft, the inner cylinder is provided with a hook, and the rotation shaft is rotatably fitted to the hook.

6. The washing machine as claimed in claim 5, wherein the rotating shaft is provided at an upper edge of the sheet body, and the weight increasing part is provided at a surface of the sheet body facing away from the exhaust port and at a lower edge of the sheet body.

7. The washing machine as claimed in claim 4, wherein the weight of the weight increasing part is more than 35% of the weight of the check valve sheet.

8. The washing machine as claimed in claim 4, wherein the one-way valve sheet further comprises:

the tablet body reinforcing rib is arranged on the surface of the tablet body, which is opposite to the chip removal port.

9. The washing machine as claimed in claim 8, wherein the plurality of sheet reinforcing ribs are provided, each of the sheet reinforcing ribs extends in an up-down direction and the plurality of sheet reinforcing ribs are provided at intervals in a horizontal direction.

10. The washing machine as claimed in any one of claims 1 to 9, wherein the inner cylinder is configured with a stop surface, the stop surface being stopped inside the one-way valve plate when the one-way valve plate closes the exhaust port.

11. The washing machine as claimed in any one of claims 1 to 9, wherein the outer surface of the inner tub is provided with a receiving groove, and the check valve sheet is located in the receiving groove.

12. The washing machine as claimed in claim 11, wherein the receiving groove is provided at an outer side surface of the inner tub and penetrates an outer bottom surface of the inner tub.

13. The washing machine as claimed in claim 1, wherein a maximum distance between the check valve plate and a central axis of the inner tub in a radial direction of the inner tub is not greater than a maximum radius of the inner tub when the check valve plate is at a maximum opening degree by the stopper of the stopper structure.

14. The washing machine as claimed in claim 13 wherein the total cross-sectional area of the individual exhaust ports is greater than 2500 mm.