WO2017080429A1

WO2017080429A1 - Pulsator of washing machine and washing machine

Info

Publication number: WO2017080429A1
Application number: PCT/CN2016/104974
Authority: WO
Inventors: 程宝珍; 王玲臣; 李梅; 王得军; 刘尊安; 宋秀顺
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2015-11-12
Filing date: 2016-11-08
Publication date: 2017-05-18
Also published as: EP3375925A1; CN106702656B; EP3375925A4; CN106702656A; JP2018533419A; US20180347091A1; KR20180081074A

Abstract

Disclosed are a pulsator of a washing machine and a washing machine, wherein a base body (1) of the pulsator is in the shape of a disc; a protruding middle portion (4) is provided in the middle of the base body (1) of the pulsator; the upper surface of the base body (1) is provided with protruding stirring vanes (2) and grooves (3) extending from the middle part (4) of the base body (1) towards the periphery of the base body (1); and the lower surface of the base body (1) is provided with smoothly undulated faces corresponding to the upper surface. Since the undulated faces do not stiffly protrude from the lower surface of the base body (1), and no stiff included angle is provided between the undulated faces and between the undulated faces and the other faces of the base body (1), and unlike existing pulsators having a lower surface divided into many small areas, the lower surface of the pulsator is a large integrated face with undulated faces, reducing a dead space with dirt easily accumulating therein and preventing dirt from easily adhering to the bottom of the pulsator.

Description

Washing machine pulsator and washing machine

Technical field

The invention relates to a washing machine pulsator and a washing machine, belonging to the field of washing machine devices.

Background technique

As shown in FIG. 6, the conventional pulsator is provided with a plurality of circular ring ribs 10 and a plurality of transverse ribs 11 in the radial direction of the base body on the lower surface. Since the plurality of ring ribs 10 and the transverse ribs 11 protrude from the lower surface of the base body, and the ring ribs 10 and the transverse ribs 11 form more intersection points, the small areas formed by the division are more. Since the ring ribs 10 and the transverse ribs 11 intersect with the lower surface of the base body at right angles, the intersection is easy to deposit dirt, and because of the small area formed by the division, the force of the water flow on the bottom of the pulsator is reduced, so that the dirt Easy to attach to the lower surface of the wheel.

The present invention has been made in view of the above.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a washing machine pulsator and a washing machine, which can make the lower surface of the pulsator less likely to adhere to dirt.

In order to solve the above technical problems, the basic idea of adopting the technical solution of the present invention is:

A washing machine pulsator, the base of the pulsator is a disc shape, and a central portion of the bulge is arranged at the center of the pulsator base body, and the upper surface of the base body is provided with a convex stirring blade and a concave extending from the central portion of the base body to the outer periphery of the base body In the groove, the lower surface of the base body is provided with a smooth uneven surface corresponding to the upper surface.

Further, an annular reinforcing rib is disposed at the center of the lower surface of the base body, and a reinforcing rib is disposed along the radial direction of the annular reinforcing rib, and the enclosed portion of the annular reinforcing rib is closed by the lower sealing cover to form a smooth plane.

Further, the sides of the stirring blade are curved surfaces, and the curved surface is connected with the top of the stirring blade and the upper surface of the substrate, and the intersection line between the curved surface and the upper surface of the substrate is a curve, and the curve includes a plurality of continuous arcs, from the center of the substrate to the periphery of the substrate. For the inwardly concave arc, the outwardly convex arc, and the inwardly concave arc, the bottom of the stirring blade is wide and gradually narrows upward.

Further, the stirring blade is a hollow structure, and the bottom of the stirring blade is open.

Further, the top of the stirring blade extends from the central portion of the base body to the outer periphery of the base to form a curve from low to high, and the highest point of the stirring blade is higher than the central portion of the base body.

Further, the top of the stirring blade extends downward from the highest point through the smooth curved surface and is connected to the outer periphery of the base.

Further, a groove extending radially in the base body is disposed between two adjacent stirring blades on the base body, and the width of the groove gradually increases from the central portion of the base body toward the outer periphery of the base body.

Further, a plurality of through holes are respectively disposed in the grooves on the top of the stirring blade, the base body and the base body.

Further, a through hole is formed in the base body between the stirring blade and the adjacent groove, and a plurality of through holes 6 are provided on the base body at a position close to the intersection line between the side surface of the stirring blade and the upper surface of the base body.

A washing machine equipped with the pulsator of any of the above.

After adopting the above technical solution, the present invention has the following advantageous effects compared with the prior art.

The washing machine pulsator and the washing machine, the base of the washing machine pulsator is disc-shaped, and a central portion of the bulge is arranged at the center of the pulsator base body, and the upper surface of the base body is provided with a protrusion extending from the central portion of the base body to the outer periphery of the base body The stirring blade and the groove, the concave surface formed by the stirring blade on the lower surface of the base body and the convex surface formed by the groove on the lower surface of the base body form a smooth concave and convex undulating surface of the lower surface of the base body, and the uneven surface of the base body is not bluntly protruded from the lower surface of the base body. There is no stiff angle between the undulating surface and the other surfaces of the substrate, and no small area is formed on the lower surface of the pulsator. Instead, a large integral surface having a undulating surface is formed on the bottom surface of the pulsator. It reduces the dead angle that dirt is easy to accumulate, making it difficult for dirt to adhere to the bottom of the pulsator.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS

2 is a schematic view showing the structure of the upper surface of the washing machine pulsator after the pulsator cover is removed.

3 is a schematic view showing the structure of the lower surface of a washing machine pulsator according to the present invention.

4 is a schematic view showing the structure of the lower surface of the washing machine pulsator of the present invention after the lower sealing cover is removed.

Figure 5 is a half cross-sectional view showing a pulsator of a washing machine of the present invention.

Fig. 6 is a schematic view showing the structure of the lower surface of the conventional pulsator.

1. Base body 2. Stirring blade 3. Groove 4. Center part 5. Pulsating wheel cover 6. Through hole 7. Lower sealing cover 8. Annular reinforcing rib 9. Radial reinforcing rib.

detailed description

Embodiment 1

As shown in FIG. 1 , a washing machine pulsator according to the present invention, as shown in FIG. 2-4, the base body 1 of the pulsator is in the shape of a disk, and a central portion 4 is provided at the center of the pulsator base 1 , and the base 1 is provided. The upper surface is provided from the center of the base to the base A convex stirring blade 2 extending in vitro around the circumference. The agitating blade 2 is a hollow structure, and the lower bottom of the agitating blade 2 is open, that is, as viewed upward from the bottom of the pulsator, the agitating blade 2 forms an upwardly concave hollow structure on the lower surface of the base 1.

As shown in FIGS. 1 and 2, the center portion 4 provided at the center of the base body 1 has a through hole in the vertical direction of the pulsator, and the drive shaft of the driving device is inserted into the through hole of the center portion 4 from below the pulsator, and is connected through the connecting device. The pulsator connection is fixed. After the pulsator and the drive shaft are fixedly assembled, the pulsator cover 5 is mounted on the top of the center portion 4 to close the through hole.

As shown in Fig. 1 and Fig. 2, both sides of the stirring blade 2 are curved surfaces, and the curved surface is connected to the top of the stirring blade 2 and the upper surface of the base body 1. The bottom of the stirring blade is wide and gradually narrows upward. The intersection of the arc surface on both sides of the stirring blade 2 and the upper surface of the base body 1 is a curve, and the curve includes a plurality of continuous arcs, which are inwardly concave arcs and outwardly convex from the center of the base body 1 toward the periphery of the base body 1. Arcs and inwardly concave arcs.

The top of the stirring blade 2 extends from a central portion of the base body 1 toward the outer periphery of the base body 1 in a curved shape from low to high, and the highest point of the stirring blade 2 is higher than the central portion of the base body 1. The top of the stirring blade 2 is extended downward from the highest point through the rounded curved surface to the outer periphery of the base 1.

A groove 3 extending from the central portion of the base body to the outer periphery of the base body in the radial direction of the base body is provided between the two adjacent agitating blades 2 on the upper surface of the base body 1. The width of the groove 3 is from the central portion of the base body 1 to the base body. 1 The outer circumference gradually increases.

The lower surface of the base body 1 is provided with a smooth uneven surface corresponding to the upper surface. That is, the convex stirring blade 2 on the upper surface of the base body 1 corresponds to the concave surface of the lower surface of the base body, the groove 3 on the upper surface of the base body 1 corresponds to the convex surface of the lower surface of the base body, and the concave surface and the convex surface of the lower surface of the base body are combined to form the lower surface of the base body. Sleek undulating surface.

A plurality of through holes 6 are respectively provided in the groove 3 at the top of the stirring blade 2.

A plurality of through holes 6 are provided between the stirring blade 2 and the groove 3 on the upper surface of the adjacent base 1, and on the base 1 at a position close to the intersection of the side of the stirring blade 2 and the upper surface of the base 1.

As shown in FIG. 3, FIG. 4 and FIG. 5, the pulsator of the present invention is provided with an annular reinforcing rib 8 at a portion of the lower surface of the base body 1 near the center of the base body, and a plurality of annular reinforcing ribs 8 are provided, and a plurality of annular reinforcing ribs 8 are provided. Concentrically arranged, radial stiffeners 9 are provided along the radial direction of the annular ribs, which enhances the strength of the center of the pulsator. The lower sealing cover 7 seals the annular region surrounded by the annular reinforcing ribs 8, so that the portion surrounded by the annular reinforcing ribs is closed by the lower sealing cover to form a smooth plane. The lower sealing cover 7 is welded to the annular reinforcing ribs 8 to prevent dirt from entering the annular region formed by the annular reinforcing ribs 8. The center of the lower sealing cover has a through hole for the drive shaft of the driving device to pass through to the pulsator.

The pulsator adds a pressing rib on the base 1 to form a pressing rib from the upper and lower concave groove 3, replacing a part of the ring rib and the transverse rib at the bottom of the existing pulsator, and the pressing rib formed by the groove 3 serves to enhance the strength of the pulsator base. The role. And the groove extends from the central portion of the base body to the outer periphery of the base, that is, the groove is also provided in the range enclosed by the annular reinforcing rib, and the groove 3 together with the ring The reinforcing ribs 8 and the radial reinforcing ribs 9 together serve to enhance the strength of the pulsator near the center of the base body 1. Compared with the existing pulsator, the pulsator of the present invention has higher strength.

The washing machine pulsator of the invention has a disc shape, and a center portion of the bulge is arranged at the center of the pulsator base body, and the upper surface of the base body is provided with a stirring of the protrusion extending from the central portion of the base body to the outer periphery of the base body. The groove and the groove, the concave surface formed by the stirring blade on the lower surface of the base body and the convex surface formed by the groove on the lower surface of the base body form a smooth concave and convex undulating surface of the lower surface of the base body, and there is no sturdy protrusion on the lower surface of the base body, and between the concave and convex undulating surfaces There is no stiff angle between the undulating surface and the other surface of the substrate, and no small area is formed on the lower surface of the pulsator. Instead, the bottom surface of the pulsator is formed into a large overall surface having a undulating surface, which is reduced. The dead corners of dirt are easy to accumulate, making it difficult for dirt to adhere to the bottom of the pulsator.

Embodiment 2

A washing machine equipped with the pulsator of the first embodiment.

A washing machine, the base of the washing machine pulsator is in the shape of a disc, and a central portion of the bulge is provided at the center of the pulsator base, and the upper surface of the base body is provided with a convex stirring blade extending from the central portion of the base body to the outer periphery of the base body and The groove, the concave surface formed by the stirring blade on the lower surface of the base body and the convex surface formed by the groove on the lower surface of the base body form a smooth concave and convex undulating surface of the lower surface of the base body, and there is no hard protruding protrusion on the lower surface of the base body, and between the concave and convex undulating surfaces and the concave and convex There is no stiff angle between the undulating surface and the other surfaces of the substrate, and no small area is formed on the lower surface of the pulsator. Instead, the bottom surface of the pulsator forms a large integral surface with irregularities, which reduces dirt easily. The hidden corners of the accumulation make it difficult for dirt to adhere to the bottom of the pulsator.

The embodiments of the present invention may be further combined or substituted, and the embodiments are merely described for the preferred embodiments of the present invention, and are not intended to limit the scope and scope of the present invention. Various changes and modifications made by those skilled in the art to the technical solutions of the present invention are within the scope of the present invention.

Claims

A washing machine pulsator is characterized in that: the base of the pulsator is a disc shape, and a central portion of the bulge is arranged at the center of the pulsator base body, and the upper surface of the base body is provided with a protrusion extending from the central portion of the base body to the outer periphery of the base body. The blade and the groove are stirred, and the upper surface of the lower surface of the substrate is provided with a smooth uneven surface.
A washing machine pulsator according to claim 1, wherein an annular reinforcing rib is disposed at a center of the lower surface of the base body, and a reinforcing rib is arranged along a radial direction thereof in a range in which the annular reinforcing rib is enclosed, and the annular reinforcing rib surrounds The closed portion is closed by a lower sealing cover in a smooth plane.
The pulsator of a washing machine according to claim 1 or 2, wherein the sides of the stirring blade are curved surfaces, the curved surface is connected to the top of the stirring blade and the upper surface of the base body, and the intersection line between the curved surface and the upper surface of the base is a curve. The curve includes a plurality of continuous arcs, from the center of the base body to the outer periphery of the base body, an inwardly concave arc, an outwardly convex arc, and an inwardly concave arc. The bottom of the stirring blade is wide and gradually narrows upward.
A washing machine pulsator according to claim 3, wherein the stirring blade is a hollow structure, and the bottom of the stirring blade is open.
A washing machine pulsator according to claim 3, wherein the top of the stirring blade extends from a central portion of the base body to a peripheral portion of the base body from a low to a high curve, and the highest point of the stirring blade is higher than a central portion of the base body.
A washing machine pulsator according to claim 3, wherein the top of the stirring blade extends downward from the highest point through the rounded curved surface and is connected to the outer periphery of the base.
A washing machine pulsator according to claim 1 or 2, wherein a groove extending radially along the base body is disposed between two adjacent stirring blades on the base body, and the width of the groove is from the base body. The central portion gradually increases toward the outer periphery of the base.
A washing machine pulsator according to claim 6, wherein a plurality of through holes are respectively disposed in the grooves on the top of the stirring blade, the base body and the base body.
A washing machine pulsator according to claim 3, wherein a through hole is formed in the base body between the stirring blade and the adjacent groove, and on the base body, the side of the stirring blade is adjacent to the upper surface of the base body. The position is provided with a plurality of through holes 6.
A washing machine characterized in that the pulsator according to any one of claims 1 to 9 is installed.