CN111424389A

CN111424389A - Impeller structure and washing machine

Info

Publication number: CN111424389A
Application number: CN201910018320.2A
Authority: CN
Inventors: 刘庆; 宋秀顺; 刘尊安
Original assignee: Qingdao Haier Washing Machine Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-07-17

Abstract

The invention discloses a wave wheel structure, which comprises a wheel disc, wherein at least one water-stirring roller is arranged on the disc surface of the wheel disc, and the water-stirring roller can rotate around the central axis of the water-stirring roller. The invention also discloses a washing machine with the impeller structure. According to the invention, the rotatable water stirring roller is arranged on the wheel disc, so that the contact area between the clothes and the impeller is increased, the circle of ribs are arranged on the periphery of the water stirring roller, the friction between the water stirring roller and the clothes is increased, the lifting ribs are higher than the water stirring roller, the impact force of water flow on the clothes is increased, the clothes are impacted on the water stirring roller from high to low, the clothes rubbing effect is generated, the clothes cleaning ratio is improved, the cleaning time is shortened, and the clothes washing energy consumption is reduced.

Description

Impeller structure and washing machine

Technical Field

The invention belongs to the field of household appliances, particularly relates to an impeller structure, and particularly relates to a washing machine provided with the impeller structure.

Background

The impeller washing machine turns over clothes through water flow formed by rotation of an impeller or simultaneous rotation of the impeller and an inner barrel, and applies acting force to the clothes in the turning process to enable the clothes to be repeatedly rubbed with the impeller and the inner barrel wall of the washing machine, so that the aim of cleaning is fulfilled. The impeller in the impeller washing machine in the prior art has various forms, the movement form of water flow is single and fixed in the washing process, the impact force on clothes is insufficient, the overturning efficiency of washings in an inner barrel is low, the washing time is too long, multiple times of washing is needed, the water consumption is large, the washing time is long, and the washing effect is poor.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a wave wheel structure, which improves the impact force of water flow on clothes and the washing ratio of the clothes, shortens the washing time and reduces the energy consumption of clothes washing.

In order to solve the technical problems, the invention adopts the technical scheme that:

the impeller structure comprises a wheel disc, wherein at least one water-stirring roller is arranged on the disc surface of the wheel disc, and the water-stirring roller can rotate around the central axis of the water-stirring roller.

Further, the water stirring roller comprises a central shaft fixedly installed along the radial direction of the wheel disc, a rotatable roller is sleeved on the central shaft, a circle of ribs which are protruded along the radial direction and are uniformly distributed are arranged on the periphery of the roller, and the ribs extend along the axial direction of the roller.

Further, the center of rim plate is equipped with convex wheel hub that makes progress, is equipped with a plurality ofly along wheel hub circumference looks interval arrangement, along the radial promotion muscle that extends of rim plate on the quotation of rim plate, sets up between the adjacent promotion muscle along the radial water stirring roller that extends of rim plate, promotes muscle (11) and water stirring roller staggered, the symmetric distribution is in wheel hub's periphery.

Further, promote the muscle and include two convex curved surfaces upwards by the rim plate, two curved surfaces are from upwards to being close to each other' S direction slope, and the upper surface that forms the promotion muscle is connected at the top of two curved surfaces, the upper surface is the extension of S-shaped.

Further, promote the upper surface of muscle by wheel hub along radial first section fin and the second section fin of dividing into of rim plate, first section fin is the arc of undercut, second section fin is the convex arc that makes progress, first section fin and second section fin junction rounding off.

Further, the second section of convex rib is higher than the highest position of the water stirring roller in the direction vertical to the wheel disc, and the first section of convex rib is lower than the highest position of the water stirring roller in the direction vertical to the wheel disc.

Furthermore, a groove which is sunken downwards is arranged on the wheel disc, the water stirring roller is arranged at the opening of the groove, two ends of the central shaft are fixed on the inner wall of the groove along the radial direction of the wheel disc, at least one part of the rolling shaft extends into the groove, and a certain gap is reserved between the periphery of the rolling shaft and the inner wall of the groove; preferably, the roller is ellipsoidal, the roller is sleeved on the central shaft along the long axis direction of the roller, and the shape of the groove is matched with the shape of the roller.

Furthermore, a threaded hole is formed in the side wall, close to the hub, of the groove, a through mounting hole is formed in the side wall, opposite to the threaded hole, of the groove, threads matched with the threaded hole are formed in one end of the central shaft, and the central shaft sequentially penetrates through the mounting hole and the roller to stretch into the threaded hole.

Further, a shaft sleeve is arranged between the two opposite ends of the rolling shaft and the central shaft, and a limiting part attached to the side wall of the groove is arranged on one side of the shaft sleeve.

Furthermore, the invention also relates to a washing machine, which comprises an inner barrel, wherein the impeller structure is arranged in the inner barrel, and the water stirring roller is arranged towards the inner part of the inner barrel.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1. Be equipped with on the rim plate and carry out the promotion muscle and the roller of dialling that overturn to the clothing, the roller of dialling can be rotatory around self axis, establish the rib of the similar washboard of round on the periphery of the roller of dialling, increased the friction between roller of dialling and the clothing, the periphery height that promotes the muscle is higher than the height of the roller of dialling, the impeller drives the clothing upset when rotatory, make the clothing by high to low striking on the roller of dialling, produce the effect of rubbing with the hands the clothing, improve the clothing and wash the ratio, shorten the cleaning time, reduce the laundry energy consumption.

2. The periphery height that promotes the muscle is higher than the inside height that promotes the muscle, and the impeller is when the washing rotates, and outside rivers are rotatory along with promoting the muscle, and inboard rivers are rotatory in opposite direction, make inboard rivers and outside rivers form the convection current, cause the impact to the clothing, improve rivers impact force and the clothing washing efficiency to the clothing.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a top view of a pulsator structure in an embodiment of the present invention;

FIG. 2 is a schematic sectional view of a pulsator structure according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a washing machine according to an embodiment of the present invention;

fig. 4 is a schematic diagram of water flow and clothes turning tracks in the embodiment of the present invention.

Description of the main elements in the figures: 1. an impeller structure; 2. an inner barrel; 3. an outer tub; 4. a motor; 10. a wheel disc; 11. lifting the ribs; 111. a first section of ribs; 112. a second section of raised ribs; 12. a water-repellent roller; 121. a roller; 122. a central shaft; 123. a shaft sleeve; 124. a threaded hole; 125. a groove; 126. ribs; 13. a hub.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the pulsator structure according to the embodiment of the present invention includes a disk 10 having a basin shape, at least one water-stirring roller 12 rotatable around a central axis of the water-stirring roller 12 is disposed on a surface of the disk 10, and the central axis of the water-stirring roller 12 extends in a radial direction of the disk 10. The center of rim plate 10 is equipped with the convex wheel hub 13 that makes progress, has on the rim plate 10 to be equipped with a plurality of clothes upset in driving washing machine bucket 2, convex promotion muscle 11 that makes progress, promotion muscle 11 evenly arranges along wheel hub 13's circumference looks interval, along the radial extension of rim plate 10, is equipped with water stirring roller 12 between the adjacent promotion muscle 11 to make promotion muscle 11 arrange with water stirring roller 12 looks alternate, water stirring roller 12 can wind self center pin 122 line rotation, water stirring roller 12 evenly arranges along wheel hub 13's circumference, along the radial extension of rim plate 10, promote muscle 11 and water stirring roller 12 and arrange on the quotation of rim plate 10 around wheel hub's periphery symmetry.

Generally, 3-6 lifting ribs 11 are arranged on a

wheel disc

10, 3

lifting ribs

11 and 3 water stirring rollers 12 are arranged in the figure, the water stirring rollers 12 are arranged on the left side and the right side of each lifting rib 11 respectively, the height of each lifting rib 11 is higher than that of each water stirring roller 12, when the impeller structure 1 rotates, water at the positions of the lifting ribs 11 flows to the water stirring rollers 12 to impact clothes, the clothes are overturned towards the water stirring rollers 12 under the action of the lifting ribs 11, a plurality of ribs 126 arranged along the radial direction of the wheel disc 10 are arranged on the water stirring rollers 12, the ribs 126 are similar to convex ribs on a washboard, the friction between the water stirring rollers 12 and the clothes is increased by the ribs 126, the cleaning ratio and the washing efficiency of the clothes are improved, and the washing time is saved.

Example one

As shown in fig. 2, the water-stirring roller 12 in this embodiment includes a central shaft 122 and a roller 121, the central shaft 122 is installed along the radial direction of the wheel disc 10, the roller 121 is rotatably sleeved on the central shaft 122, a circle of ribs 126 that are radially protruded along the roller 121 and are uniformly arranged are arranged on the periphery of the roller 121, the ribs 126 extend along the axial direction of the roller 121, the roller 121 is ellipsoidal, the roller 121 is sleeved on the central shaft 122 along the long axis direction thereof, the ribs 126 extend to both ends along the long axis direction of the roller 121, after the clothes contact with the water-stirring roller 12, the roller 121 of the water-stirring roller 12 rotates to increase the contact area between the roller 121 and the clothes, and the ribs 126 can increase the friction force between the pulsator and the clothes, thereby increasing the washing ratio of the clothes.

In this embodiment, a groove 125 which is recessed downward and has an open upper portion is formed in the wheel disc 10, the groove 125 is formed between adjacent lifting ribs 11, the shape of the groove 125 is matched with the shape of the roller 121, the water stirring roller 12 is installed at the opening of the groove 125, at least a portion of the roller 121 extends into the groove 125, and a certain gap is left between the periphery of the roller 121 and the inner wall of the groove 125, so that the roller 121 rotates in the groove 125.

In this embodiment, a threaded hole 124 is formed in a side wall of the groove 125 close to the hub 13, a through mounting hole is formed in a side wall of the groove 125 opposite to the threaded hole, the mounting hole and the threaded hole 124 are coaxially arranged, a thread matched with the threaded hole 124 is formed in an end portion of the central shaft 122, and the central shaft 122 sequentially penetrates through the mounting hole and the roller 121 and extends into the threaded hole 124. The outer edge of the wheel disc 10 is provided with a mounting groove recessed toward the hub 13 at a position corresponding to the mounting hole, and the top of the central shaft 122 is in spacing contact with the mounting groove.

In this embodiment, a shaft sleeve 123 is disposed between the two opposite ends of the roller 121 and the central shaft 122, and a limiting portion attached to the sidewall of the groove 125 is disposed on one side of the shaft sleeve 123. One end of the shaft sleeve 123 extends into the space between the roller 121 and the central shaft 122, the limiting part and the central shaft 122 radially extend at a certain angle, and the inclined angle of the limiting part is attached to the inner wall of the groove 125 to limit the roller 121 to extend towards two sides along the central shaft 122.

Example two

As shown in fig. 1 to 4, the pulsator structure 1 in this embodiment includes a wheel disc 10 and a plurality of lifting ribs 11 disposed on the disc surface of the wheel disc 10, one side of the lifting ribs 11 near the hub 13 is lower than one side near the edge of the wheel disc 10, when the pulsator structure 1 rotates in washing, the outer water flow rotates along with the lifting ribs 11, the inner water flow rotates in the opposite direction, so that the inner water flow and the outer water flow form convection, and impact is applied to the clothes, and the arrow direction in fig. 4 is the water flow direction.

In this embodiment, the lifting rib 11 includes two curved surfaces protruding upwards from the wheel disc 10, and the two curved surfaces incline towards the direction close to each other from bottom to top, and the top of the two curved surfaces is connected and is formed the upper surface of the lifting rib 11, the upper surface is the extension of S-shaped. The upper surface of the lifting rib 11 is divided into a first section of convex rib 111 and a second section of convex rib 112 by the hub 13 along the radial direction of the wheel disc 10, the first section of convex rib 111 is a downward concave arc, the second section of convex rib 112 is an upward convex arc, the second section of convex rib 112 is higher than the first section of convex rib 111, and the junction of the first section of convex rib 111 and the second section of convex rib 112 is in smooth transition.

In this embodiment, the second section of the protruding rib 112 is higher than the highest position of the water-stirring roller 12 in the direction perpendicular to the wheel disc 10, the first section of the protruding rib 111 is lower than the highest position of the water-stirring roller 12 in the direction perpendicular to the wheel disc 10, when the pulsator structure 1 rotates, water flows from the upper side of the second end protruding rib to the water-stirring roller 12, so as to drive the clothes to impact the water-stirring roller 12, the water-stirring roller is provided with the rib 126 perpendicular to the water flow direction, so as to improve the friction between the clothes and the water-stirring roller 12, and when the pulsator structure 1 rotates, the clothes are overturned, so that the clothes impact from high to low on the water-stirring roller 12, thereby generating the effect of rubbing the clothes, thereby improving the ability of removing stains, reducing the washing.

In this embodiment, the lifting rib 11 includes two curved surfaces protruding upward from the wheel disc 10, and each curved surface is provided with a plurality of ribs 126 perpendicular to the water flow direction, so as to increase the friction between the clothes and the lifting rib 11 and improve the washing capability of the clothes.

In this embodiment, the curved surfaces include a first curved surface and a second curved surface, the first curved surface and the second curved surface are symmetrically arranged, and the first curved surface and the second curved surface gradually become wider from the hub 13 to the edge and then gradually become narrower, so as to prevent the clothes from being entangled and knotted at the center.

In this embodiment, the first curved surface and the second curved surface are asymmetric shapes, the steepness of the first side surface and the steepness of the second side surface are different from bottom to top, and the lifting rib 11 generates two different acting forces on the clothes during the forward and backward rotation of the pulsator structure 1, so as to prevent the clothes from being wound.

EXAMPLE III

As shown in fig. 3, the washing machine comprises an outer barrel 3, an inner barrel 2 sleeved inside the outer barrel 3, a pulsator structure 1 and a motor 4, wherein the pulsator structure 1 is installed in the inner barrel 2, the pulsator structure 1 is connected with the motor 4, the motor 4 drives the pulsator structure 1 to rotate forwards and backwards during washing, the pulsator structure 1 comprises a wheel disc 10, and a lifting rib 11 and a water stirring roller 12 which are arranged on the disc surface of the wheel disc 10, the pulsator structure 1 rotates forwards and backwards in the inner barrel to generate water flow, the water flow generated by the lifting rib 11 and the water stirring roller 12 stirs clothes, and the clothes are washed through friction.

In this embodiment, the pulsator structure 1 includes a hub 13 protruding upward, the motor shaft passes through the inner tub 2 and the outer tub 3 and is fixedly connected with the hub 13 of the pulsator structure 1, so that the motor 4 drives the rotation of the wheel disc 10, the outer periphery of the hub 13 is provided with the lifting rib 11 to generate water flow, the hub 13 is arranged at the center of the pulsator structure 1, the hub 13 extends downward, the middle part of the hub 13 is a cylindrical hollow part, the upper end of the hollow part is closed, the lower end is open, the motor shaft extends into the hollow part from the opening, the end part of the motor shaft is fixed with the hub 13 of the pulsator structure 1 through a bolt, and a sealing member is installed between the.

In this embodiment, the washing machine may be a pulsator washing machine or a drum washing machine, and when the washing machine is a pulsator washing machine, the pulsator structure is installed at the bottom of the inner tub 2, and the laundry is agitated, rolled and washed; when the washing machine is a drum washing machine, it is installed at the rear side of the inner tub to perform friction washing of the laundry in the inner tub 2.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A pulsator structure, comprising a pulsator (10), characterized in that: at least one water-repellent roller (12) is installed on the disc surface of the wheel disc (10), and the water-repellent roller (12) can rotate around the central axis of the water-repellent roller.

2. The impeller structure of claim 1, wherein: the water poking roller (12) comprises a central shaft (122) fixedly mounted along the radial direction of the wheel disc (10), a rotatable roller (121) is sleeved on the central shaft (122), a circle of ribs (126) which are radially convex and uniformly distributed are arranged on the periphery of the roller (121), and the ribs (126) extend along the axial direction of the roller (121).

3. The impeller structure of claim 1, wherein: the center of rim plate (10) is equipped with convex wheel hub (13) that makes progress, is equipped with a plurality ofly along wheel hub (13) circumference looks interval arrangement, along radial promotion muscle (11) that extend of rim plate on the quotation of rim plate (10), sets up between adjacent promotion muscle (11) along radial water stirring roller (12) that extend of rim plate (10), promotes muscle (11) and water stirring roller (12) crisscross, the periphery of symmetric distribution at wheel hub (13).

4. The pulsator structure according to claim 3, wherein: promote muscle (11) and include two by rim plate (10) convex curved surface upwards, two curved surfaces are from upwards to being close to each other' S direction slope, and the upper surface that forms the promotion muscle is connected at the top of two curved surfaces, the upper surface is the extension of S-shaped.

5. The impeller structure of claim 4, wherein: promote the upper surface of muscle by wheel hub (13) along radial first section fin (111) and second section fin (112) of dividing into of rim plate (10), first section fin (111) are undercut's arc, second section fin (112) are the convex arc that makes progress, first section fin (111) and second section fin (112) junction rounding off.

6. The pulsator structure of claim 5, wherein: the second section of convex ribs (112) are higher than the highest position of the water stirring roller (12) in the direction vertical to the wheel disc (10), and the first section of convex ribs (111) are lower than the highest position of the water stirring roller (12) in the direction vertical to the wheel disc (10).

7. The impeller structure of claim 1, wherein: a groove (125) which is sunken downwards is formed in the wheel disc, the water stirring roller (12) is installed at an opening of the groove (125), two ends of the central shaft are fixed on the inner wall of the groove (125) along the radial direction of the wheel disc, at least one part of the rolling shaft (121) extends into the groove (125), and a certain gap is reserved between the periphery of the rolling shaft (121) and the inner wall of the groove (125);

preferably, the roller (121) is ellipsoidal, the roller (121) is sleeved on the central shaft (122) along the long axis direction of the roller, and the shape of the groove (125) is matched with the shape of the roller (122).

8. The impeller structure of claim 7, wherein: the side wall of one side, close to the hub (13), of the groove (125) is provided with a threaded hole, the side wall of the groove (125) opposite to the threaded hole is provided with a through mounting hole, one end of the central shaft is provided with threads matched with the threaded hole, and the central shaft sequentially penetrates through the mounting hole and the rolling shaft to extend into the threaded hole.

9. The pulsator structure according to any one of claims 1 to 8, wherein: a shaft sleeve (123) is arranged between the two opposite ends of the rolling shaft (121) and the central shaft (122), and one side of the shaft sleeve (123) is provided with a limiting part which is attached to the side wall of the groove (125).

10. A washing machine characterized by: comprising an inner tub, in which the pulsator structure according to any one of claims 1 to 9 is installed, and the water-repellent roller is installed toward the inside of the inner tub.