CN110387660B

CN110387660B - Impeller and laundry equipment

Info

Publication number: CN110387660B
Application number: CN201810338160.5A
Authority: CN
Inventors: 高飞; 汤凯利; 周鹏; 王翔; 邓德喜
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2018-04-16
Filing date: 2018-04-16
Publication date: 2021-11-19
Anticipated expiration: 2038-04-16
Also published as: CN110387660A

Abstract

The invention relates to the field of household appliances, and discloses a wave wheel and washing equipment, wherein the wave wheel comprises a wave wheel main body and a thread scrap collecting device which is penetratingly fixed on the wave wheel main body, and the thread scrap collecting device is provided with a filtering channel communicated with the upper side and the lower side of the wave wheel main body, a filtering piece arranged in the filtering channel and a valve piece for controlling the on-off of the filtering channel. During washing, when the valve piece enables the filtering channel to be opened, the thread scraps can enter the filtering channel along with water flow and are collected in the filtering channel; when the water is drained after washing, the thread scraps can be drained along with the drained water and cannot be accumulated in the washing equipment. Therefore, the impeller of the invention can conveniently collect and clean the flock.

Description

Impeller and laundry equipment

Technical Field

The invention relates to the field of household appliances, in particular to a pulsator and washing equipment.

Background

The existing laundry machine is generally provided with a lint collecting bag to collect lint dropped from the washed laundry. But this requires regular cleaning of the lint collection bag, which is not a good user experience. In addition, cleaning the lint collecting bag may damage the lint collecting bag, reducing the collecting efficiency. In addition, due to the fact that the cleaning is carried out regularly, the thread scraps can be accumulated in the thread scrap collecting bag for a period of time, bacteria are easy to breed, clothes washing equipment and clothes to be washed are polluted, and human health is harmed.

Disclosure of Invention

The invention aims to solve the problem that the thread scraps are inconvenient to clean in the prior art, and provides a washing device which is convenient for collecting and cleaning the thread scraps.

In order to achieve the above object, an aspect of the present invention provides a pulsator, wherein the pulsator includes a pulsator body, and a lint collecting device penetratingly fixed to the pulsator body, the lint collecting device having a filtering passage communicating upper and lower sides of the pulsator body, a filtering member disposed in the filtering passage, and a valve member controlling on and off of the filtering passage.

Preferably, the thread scraps collection device is including being fixed in the casing at the center of impeller main part and fixing in the casing and with the installation department of injecing the clearance between the casing, but valve member pivot ground install in the installation department can the clearance internal rotation, the thread scraps collection device still includes first spacing portion and second spacing portion, first spacing portion and second spacing portion are used for respectively with the valve member is spacing opening the open position of filtration passageway with cut the closed position of filtration passageway, the casing be located be provided with the grid hole on the part of impeller main part downside.

Preferably, at a position where the valve member is disposed, the housing has a circular cross section, the cross section of the mounting portion is a regular polygon inscribed in the circular cross section, and a plurality of corresponding valve members are disposed at a plurality of gaps between the mounting portion and the housing, respectively.

Preferably, the mounting portion extends from the top end of the housing along the axial direction of the housing and has a shaft seat portion for mounting the pulsator driving shaft, a protrusion is provided on an outer wall of the mounting portion to form the first position limiting portion, and an annular flange protruding inward is provided at the top of the housing to form the second position limiting portion.

Preferably, the pulsator comprises a water stirring rib arranged on the top surface of the pulsator main body and a water drainage rib arranged on the bottom surface of the pulsator main body, and the pulsator main body is provided with an overflowing hole.

Preferably, the housing includes a cylindrical side wall portion and an enlarged portion projecting radially outward from the cylindrical side wall portion, the grid hole being provided on an outer peripheral surface of the enlarged portion.

Preferably: the water-stirring rib is of a hollow structure, and the outward-expanding part is arranged corresponding to the water-stirring rib and is communicated with the hollow part in the water-stirring rib in a fluid manner; and/or the grid holes are 65-70mm away from the axis of the impeller.

The invention also provides a washing device, wherein the washing device comprises an inner barrel and the impeller, the impeller is rotatably arranged in the inner barrel, a washing cavity is formed between the impeller and the barrel wall of the inner barrel, an impeller back cavity is formed between the impeller and the barrel bottom of the inner barrel, the filtering channel is communicated with the washing cavity and the impeller back cavity, the barrel bottom is provided with an annular limiting groove, the bottom end of the thread scrap collecting device extends into the limiting groove and is in clearance fit with the limiting groove to limit the thread scrap collecting cavity, and a drain hole is formed in the part of the barrel bottom, which is positioned at the inner side of the limiting groove.

Preferably, an annular limiting block is fixed on the barrel bottom, and the limiting groove is coaxially arranged on the limiting block.

Preferably, the height of the limiting block is 3.8-4 mm; and/or the clearance between the thread scrap collecting device and the limiting groove is 0.9-1 mm.

By the technical scheme, in the washing process, when the valve piece enables the filtering channel to be opened, the thread scraps can enter the filtering channel along with water flow and are collected in the filtering channel; when the water is drained after washing, the thread scraps can be drained along with the drained water and cannot be accumulated in the washing equipment. Therefore, the impeller of the invention can conveniently collect and clean the flock.

Drawings

Fig. 1 is a perspective view of a pulsator according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is a back side perspective view of the pulsator of FIG. 1;

fig. 6 is a plan view of a laundry device according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;

FIG. 8 is an enlarged view at D of FIG. 7;

FIG. 9 is an enlarged view at E in FIG. 7;

fig. 10 is a schematic view illustrating a structure of water circulation in a washing process.

Description of the reference numerals

100-impeller, 110-impeller body, 111-overflowing hole, 120-thread scrap collecting device, 121-valve element, 122-shell, 122 a-annular flange, 122 b-cylindrical side wall part, 122 c-outward expanding part, 123-mounting part, 123 a-shaft seat part, 123 b-bulge, 130-water stirring rib, 140-water discharging rib, 200-inner barrel, 210-barrel wall, 220-barrel bottom, 221-limiting groove, 222-water discharging hole, 223-limiting block and P-grid hole.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right as viewed with reference to the accompanying drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.

According to an aspect of the present invention, there is provided a pulsator, wherein the pulsator 100 includes a pulsator body 110 and a lint collecting device 120 penetratingly fixed to the pulsator body 110, the lint collecting device 120 having a filtering passage communicating upper and lower sides of the pulsator body 110, a filtering member disposed in the filtering passage, and a valve member 121 controlling on/off of the filtering passage.

By using the impeller 100 of the invention, in the washing process, when the valve 121 opens the filtering channel, the thread scraps can enter the filtering channel along with the water flow and are collected in the filtering channel; when the water is drained after washing, the thread scraps can be drained along with the drained water and cannot be accumulated in the washing equipment. Therefore, the pulsator 100 of the present invention can conveniently collect and clean lint.

According to another aspect of the present invention, there is provided a laundry device, wherein, as shown in fig. 6 to 9, the laundry device includes an inner tub 200 and a pulsator 100 of the present invention, the pulsator 100 is rotatably disposed in the inner tub 200, a washing chamber is formed between the pulsator 100 and a tub wall 210 of the inner tub 200, a pulsator back chamber is formed between the pulsator 100 and a tub bottom 220 of the inner tub 200, the filtering passage communicates the washing chamber and the pulsator back chamber, the tub bottom 220 is provided with an annular stopper groove 221, a bottom end of the lint collecting device 30 extends into the stopper groove 221 and is in clearance fit with the stopper groove 221 to define a lint collecting chamber, and a drain hole 222 is provided on a portion of the tub bottom 220 located inside the stopper groove 221.

As shown in fig. 7 to 9, when washing, by opening the filtering passage by the valve member 121, the water flow carrying the lint enters the filtering passage from the washing chamber on the upper side of the pulsator body 110, and the lint is trapped and collected in the filtering passage (specifically, the lint collecting chamber defined by the stopper groove 221) by the filter. Since the spacing groove 221 is in clearance fit with the lint collecting device 30, on one hand, the pulsator 100 is allowed to rotate relative to the inner tub 200, and on the other hand, since the clearance is much smaller than the grating holes P, the resistance to water flow at the clearance is large, so that the filtered water does not substantially flow out from the clearance, but flows to the back chamber of the pulsator through the grating holes P and returns to the washing chamber on the upper side of the pulsator body 110 through the overflowing holes 111 on the pulsator body 110 and/or the gap between the outer circumference of the pulsator body 110 and the tub wall 210. When the water flows out of the lint collecting device 120 through the grill holes P, the lint is substantially intercepted in the lint collecting chamber by the grill holes P, and the lint cannot escape from the gap between the stopper groove 221 and the lint collecting device 120 because the gap is small. When the drainage, valve member 121 opens the filtration passageway, and the wash port 222 of bottom of the bucket 220 is opened, and the water in the washing chamber will pass through the filtration passageway and discharge from wash port 222, will take away the thread scraps of collecting in the filtration passageway during the drainage to drainage at every turn can both clear up thread scraps collection device 120 automatically, has realized the automatic clearance thread scraps on the one hand and need not user operation and the component loss that leads to from this, and on the other hand has avoided the thread scraps to breed the problem of bacterium.

In which the lint collecting device 120 may have various suitable forms to facilitate the arrangement and formation of the filtering channel, as shown in fig. 2 to 4, the lint collecting device 120 includes a housing 122 fixed to the center of the pulsator body 110, and a mounting portion 123 fixed in the housing 122 and defining a gap with the housing 122, the valve element 121 is pivotably mounted to the mounting portion 123 and is rotatable in the gap, the lint collecting device 120 further includes a first position limiting portion and a second position limiting portion for limiting the valve element 121 at an open position for opening the filtering channel and a closed position for cutting off the filtering channel, respectively, and a grating hole P is provided on a portion of the housing 122 located at the lower side of the pulsator body 110. Specifically, a gap between the housing 122 and the mounting portion 123 is a filter passage, opening of the filter passage by the valve element 121 means that the gap penetrates the upper and lower sides of the pulsator 100, and blocking of the filter passage by the valve element 121 means that the gap penetrates the upper and lower sides of the pulsator 100.

It should be noted that the valve element 121 completely blocks the filtering passage in the closed position, and the filtering passage is opened to different degrees in any position of the valve element 121 deviated from the closed position, and the opened position refers to a position where the valve element 121 opens the filtering passage to the maximum.

In the present invention, the valve member 121 may control the state of the filtering passage (i.e., open or shut-off) in various ways under appropriate circumstances. For example, the valve member 121 may be a solenoid valve and controlled by a control module of the laundry device to open the filtering passage during washing and to block the filtering passage during draining (and dewatering). In the laundry device provided with the pulsator 100, the rotation of the pulsator 100 causes a specific water flow in the laundry device. In order to fully utilize the water flow effect of the laundry device, it is preferable that the pulsator 100 includes a water-stirring rib 130 disposed on the top surface of the pulsator body 110 and a water-discharging rib 140 disposed on the bottom surface of the pulsator body 110, as shown in fig. 1, and the pulsator body 110 is provided with an overflowing hole 111. When the pulsator 100 rotates, the water stirring rib 130 drives the water flow in the washing cavity to rotate, the water discharging rib 140 drives the water flow in the back cavity of the pulsator to do centrifugal rotation motion and return to the washing cavity through the through-flow hole 111, so that a negative pressure region is generated in the middle of the pulsator 100 at the back cavity of the pulsator, pressure difference is formed between the washing cavity and the back cavity of the pulsator at two sides in the middle of the pulsator 100, and the water flow can flow from the washing cavity to the back cavity of the pulsator at the middle of the pulsator 100 (the flow path of the water flow is specifically shown by an arrow in fig. 10). Since the thread scrap collecting device 120 is disposed in the middle of the pulsator 100, the water flowing from the washing chamber to the back chamber of the pulsator impacts the valve member 121, so that the valve member 121 rotates to the open position to allow the water carrying the thread scrap to enter the filtering passage, the thread scrap is collected in the filtering passage by the filtering member, and the filtered water flows into the back chamber of the pulsator from the grating holes P and returns to the washing chamber through the overflowing hole 111. When the pulsator 100 stops rotating, due to a temporary pressure difference, water flow in the outer peripheral region of the washing chamber may move toward the pulsator back chamber through the overflowing hole 111, and water flow in the outer peripheral region of the pulsator back chamber may flow toward the middle of the pulsator 100, and the water flow may reversely rotate the valve member 121 to a closed position, so that the filtering passage is cut off, and thread debris is left in the filtering passage. When water is drained, under the action of gravity of water flow, the water flow flows to the back cavity of the impeller from the washing cavity and is discharged outwards, so that the valve piece 121 rotates to the opening position under the action of the water flow, and the water flow washes the filtering channel and takes away thread scraps collected in the filtering channel to be discharged together. Therefore, on one hand, the thread scraps can be conveniently collected and cleaned, and on the other hand, the on-off of the filtering channel can be automatically realized at a proper time by utilizing the water flow characteristic of the washing equipment.

Wherein the housing 122 and the mounting portion 123 may be provided in various suitable shapes to form the gap. The valve member 121 may be shaped to match the gap so as to rotate in the gap and to increase the flow area of the filter passage as much as possible in the open position and to completely block the filter passage in the closed position. Preferably, at a position where the valve element 121 is disposed, the housing 122 has a circular cross section, the cross section of the mounting portion 123 is a regular polygon (specifically, a regular triangle) inscribed in the circular cross section, and a plurality of corresponding valve elements 121 are disposed at a plurality of gaps between the mounting portion 123 and the housing 122, respectively. Thereby, a plurality of uniform gaps may be formed between the mounting portion 123 and the housing 122 to provide uniformly distributed filter passages and facilitate the disposition of the valve element 121. In addition, the mounting portion 123 may be fixed to the housing 122 by an appropriate means, such as a snap fit of contact portions inscribed in cross-section. It should be understood that the housing 122 and the mounting portion 123 may have a circular cross section and a corresponding inscribed regular polygon only where the valve element 121 is provided, and may not be limited at other positions in the axial direction of the housing 122 as long as there is a gap between the housing 122 and the mounting portion 123.

In addition, the first limiting part and the second limiting part can be arranged at proper positions and have proper structures according to requirements. Preferably, the first position-limiting portion is configured to make the valve element 121 to leave the filtering channel as far as possible, and the second position-limiting portion is configured to make the valve element 121 completely block the filtering channel. For this reason, it is preferable that the first stopper portion is provided so as to be aligned with the flow direction of the water flow in the filter passage as much as possible, and the second stopper portion is provided so as to be perpendicular to the flow direction of the water flow in the filter passage as much as possible. Specifically, as shown in fig. 3 and 4, the mounting portion 123 extends from the top end of the housing 122 along the axial direction of the housing 122, a protrusion 123b is provided on the outer wall of the mounting portion 123 to form the first limiting portion, and an annular flange 122a protruding inward is provided on the top of the housing 122 to form the second limiting portion. In this preferred embodiment, the valve member 121 abuts on the projection 123b in the open position, and the valve member 121 abuts horizontally on the annular flange 122a in the closed position and completely blocks the filtration passage.

In order to increase the flow area of the filter passage when the filter passage is opened as much as possible and to shorten the rotation stroke of the valve element 121 as much as possible, the rotation angle of the valve element 121 defined by the first limiting portion and the second limiting portion may be set to be within an appropriate range, for example, the rotation angle of the valve element 121 from the first limiting portion to the second limiting portion is 0 to 80 °. In addition, in order to keep the valve element 121 in the closed position without being affected by the water flow, the valve element 121 may be biased in the closed position by an elastic member such as a spring. The preset biasing force of the resilient member should not be too great so that the valve member 121 can be rotated to open the filter passage under the impact of the water flow.

The pulsator 100 of the present invention may be driven by a pulsator driving shaft of a pulsator motor, and for this, the mounting part 123 may have a shaft seating part 123a for mounting the pulsator driving shaft.

In addition, it is preferable that the housing 122 includes a cylindrical side wall portion 122b and a flared portion 122c protruding radially outward from the cylindrical side wall portion 122b, and the grid holes P are provided on an outer circumferential surface of the flared portion 122 c. By providing the flared portion 122c, the volume of the lint collecting chamber can be increased appropriately to collect the amount of lint generated corresponding to each washing.

More preferably, the water distribution rib 130 is a hollow structure, and as shown in fig. 5, the outward-expanding portion 122c is disposed corresponding to the water distribution rib 130 and is in fluid communication with the hollow portion inside the water distribution rib 130, so that the outward-expanding portion is disposed by using the hollow portion of the water distribution rib 130, and a part of the lint collecting device 120 can be covered by the water distribution rib 130, thereby having an aesthetic effect.

Wherein the flaring portion 122c can be disposed to protrude radially outward from the cylindrical sidewall portion 122b by a suitable distance to satisfy the requirements of expanding the volume and simplifying the structure, and specifically, the grating holes P can be 65-70mm from the axis of the pulsator 100.

In the present invention, the limiting groove 221 may be directly disposed on the tub bottom 220, or may be disposed on another structure fixed to the tub bottom 220. Preferably, an annular stop block 223 is fixed on the tub bottom 220, and the stop groove 221 is coaxially disposed on the stop block 223. Through setting up spacing block 223, can set up spacing groove 221 under the condition that does not influence the intensity of barrel head 220 to can increase the volume of line bits collection chamber through raising spacing groove 221.

In order to take cost and efficiency into consideration, the height of the limiting block 223 is 3.8-4 mm. In addition, in order to provide a proper clearance fit between the lint collecting device 30 and the catching groove 221, the clearance between the lint collecting device 30 and the catching groove 221 is 0.9-1mm to ensure sufficient resistance while satisfying a relative rotational relationship with each other so that water does not substantially flow out of the clearance.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. The invention includes the combination of the individual features in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A pulsator, characterized in that the pulsator (100) comprises a pulsator body (110) and a lint collecting device (120) penetratingly fixed to the pulsator body (110), the lint collecting device (120) having a filtering passage communicating upper and lower sides of the pulsator body (110), a filtering member disposed in the filtering passage, and a valve member (121) controlling on and off of the filtering passage;

the thread scrap collecting device (120) comprises a shell (122) fixed at the center of the impeller main body (110) and a mounting part (123) fixed in the shell (122) and defining a gap between the shell (122), the valve member (121) is pivotally mounted on the mounting part (123), the mounting part (123) extends from the top end of the shell (122) along the axial direction of the shell (122) and is provided with a shaft seat part (123a) for mounting an impeller driving shaft, and a grid hole (P) is formed in the part, located on the lower side of the impeller main body (110), of the shell (122).

2. The pulsator according to claim 1, wherein the valve member (121) is rotatable in the gap, and the lint collecting device (120) further comprises a first and second position-restricting portions for restricting the valve member (121) at an open position for opening the filtering passage and a closed position for intercepting the filtering passage, respectively.

3. The pulsator according to claim 2, wherein the housing (122) has a circular cross-section at a position where the valve members (121) are disposed, the cross-section of the mounting part (123) is a regular polygon inscribed in the circular cross-section, and a corresponding plurality of the valve members (121) are disposed at a plurality of gaps between the mounting part (123) and the housing (122), respectively.

4. The pulsator according to claim 3, wherein a protrusion (123b) is provided on an outer wall of the mounting part (123) to form the first stopper part, and an annular flange (122a) protruding inward is provided on a top of the housing (122) to form the second stopper part.

5. The pulsator according to any one of claims 2 to 4, wherein the pulsator (100) comprises a water-stirring rib (130) disposed on a top surface of the pulsator body (110) and a water-discharging rib (140) disposed on a bottom surface of the pulsator body (110), and the pulsator body (110) is provided with an overflowing hole (111).

6. The pulsator according to claim 5, wherein the housing (122) comprises a cylindrical side wall portion (122b) and a flared portion (122c) protruding radially outward from the cylindrical side wall portion (122b), the grating holes (P) being provided on an outer circumferential surface of the flared portion (122 c).

7. The pulsator of claim 6, wherein:

the water-repellent rib (130) is of a hollow structure, and the outward-expanding part (122c) is arranged corresponding to the water-repellent rib (130) and is communicated with the hollow part in the water-repellent rib (130); and/or the like and/or,

the distance between the grating holes (P) and the axis of the impeller (100) is 65-70 mm.

8. A laundry appliance, characterized in that the laundry appliance comprises an inner tub (200) and a pulsator (100) according to any one of claims 1 to 7, the pulsator (100) is rotatably disposed in the inner tub (200), a washing chamber is formed between the pulsator (100) and a tub wall (210) of the inner tub (200), a wave wheel back cavity is formed between the wave wheel (100) and the barrel bottom (220) of the inner barrel (200), the filtering channel is communicated with the washing cavity and the wave wheel back cavity, the barrel bottom (220) is provided with an annular limiting groove (221), the bottom end of the thread scrap collecting device (30) extends into the limiting groove (221) and is in clearance fit with the limiting groove (221) to limit a thread scrap collecting cavity, a drain hole (222) is formed in the part, located on the inner side of the limiting groove (221), of the barrel bottom (220).

9. The laundry appliance according to claim 8, wherein an annular stopper (223) is fixed on the tub bottom (220), and the stopper groove (221) is coaxially disposed on the stopper (223).

10. A laundry appliance according to claim 9, characterized in that the stopper (223) has a height of 3.8-4 mm; and/or the clearance between the thread scrap collecting device (30) and the limiting groove (221) is 0.9-1 mm.