KR19990004449A - Pulsator for Washing Machine - Google Patents

Abstract

The present invention relates to a washing machine pulsator rotatably installed at the bottom of a washing tank, comprising: a pulsator body having a water flow forming part which is formed on the upper surface to form a water flow upon rotation; A cover member coupled to a central upper portion of the pulsator body to form a predetermined accommodation space, and a water flow outlet formed on an upper surface thereof; A sorting fan rotatably installed in the receiving space; A guide inclined surface for guiding the upward flow of water from the flow fan to the water jet, and a plate-shaped body blocking the opening of the water jet, and having a plurality of injection holes on the plate and integrally coupled to an upper portion of the guide slope. And a water flow guide member having a cap. As a result, productivity may be improved, and coupling and separation of the water flow guide member may be performed.

Description

Pulsator for Washing Machine

The present invention relates to a pulsator for a washing machine.

5 is a partially enlarged cross-sectional view of a state in which a conventional washing machine pulsator is installed in a washing machine. In the washing machine, an outer tub for holding laundry water is suspended in an outer casing forming an outer appearance, and a spin basket for storing laundry is rotatably installed in the outer tub. A pulsator is rotatably installed at the bottom of the spin basket, and the pulsator generates washing water to wash the contained laundry.

Conventional pulsator 70 has a disk-shaped pulsator main body, is coupled to the rotary shaft 75 penetrated upward from the power distribution unit installed in the lower portion of the outer tub 73 to rotate the rotary shaft 75 in the axis It is possible. The plate surface 80 of the pulsator body is provided with a plurality of rotary blades 81 radially raised around the rotation shaft 75. Rotational flow in the concentric direction is formed with respect to the rotation axis of the pulsator 70 by the rotation of these rotary blades 81.

On the other hand, the cover member 90 to form a predetermined receiving space 95 is coupled to the central region of the pulsator body. The cover member 90 is provided with a water flow outlet 91 which is upwardly opened, and a dividing fan 101 is rotatably provided in the accommodation space. These sorting fans 101 are rotatably provided in conjunction with the rotation of the pulsator body, and form a rotational water flow in the receiving space during rotation. In the accommodation space, there is also provided a water flow guide member for guiding the rotational water flow formed by the rotation of the flow fan to the water flow outlet. As a result, the rotational water flow is ejected through the water flow port 91 along the water flow guide member to form a central upward flow.

The cover member 90 is further provided with a plurality of scattering water holes 92 at both edges thereof. These scattered water holes 92 have a predetermined inclination angle with respect to the horizontal plane, whereby the rotational water flow formed in the accommodation space is ejected through the scattered water holes 92 and scattered upward in the radial direction.

However, in such a conventional washing machine pulsator, in order to prevent the flow guide member from flowing by the flow of water which is formed by the rotation of the dividing fan and guided to the water jet, the separate flow guide member is formed on the upper part of the pulsator body. To be fixed to the Since the pulsator main body and the water flow guide member are difficult to manufacture a mold for injection molding integrally, the pulsator main body and the water flow guide member are manufactured separately, and thus, there is a manufacturing trouble in that a work for fixing the water flow guide member must be performed. In addition, the conventional water flow guide member, there is also a problem that does not properly perform the role of the water flow guide.

Accordingly, an object of the present invention is to provide a pulsator for a washing machine, which can improve productivity by eliminating cumbersome work in manufacturing in consideration of these problems in the related art and more effectively performing the role of water flow guidance. .

Another object of the present invention is to provide a pulsator for a washing machine having an easily removable water flow guide member. Thereby, foreign matter removal can be made easy.

1 is a longitudinal sectional view of a washing machine having a washing machine pulsator according to the present invention,

2 is a perspective view of a washing pulsator in accordance with the present invention;

3 is an exploded perspective view of FIG. 2;

4 is a partially enlarged cross-sectional view of FIG.

5 is a longitudinal sectional view of a washing machine having a conventional washing machine pulsator.

Explanation of symbols for main parts of the drawings

1: Outcasing 2: Outtub

3: spin basket 10: pulsator

20: pulsator body 21: washing wing

30: cover member 31: water flow outlet

32: fan chamber 34: jam hole

36: scattering water hole 41: injection cap

42: bite edge 43: injection hole

44: duct portion 47: support plate

48: water flow guide member 49: inclined guide surface

50: classification fan 52: rotation axis

65 support portion 67 guide wall

68: hook hook

According to the present invention, in the washing machine pulsator is rotatably installed on the bottom of the washing tank, the pulsator body having a water flow forming portion which is formed on the upper surface to form a water flow during the rotation; A cover member coupled to an upper portion of the center of the pulsator body to form a predetermined accommodation space, and having a water flow outlet formed on an upper surface thereof; A sorting fan rotatably installed in the receiving space; A guide inclined surface for guiding the upward flow of water from the flow fan to the water jet, and a plate-shaped body blocking the opening of the water jet, and having a plurality of injection holes on the plate and integrally coupled to an upper portion of the guide slope. It is achieved by a washing machine pulsator comprising a water flow guide member having a cap.

Here, the water flow guide member is preferably configured to be retractably withdrawn in the cover member through the water flow outlet of the cover member, wherein the coupling means is opposed to the longitudinal edge of the injection cap A pair of hooks extending downwardly; It may be simply configured to include a locking hole provided in the edge of the water jet port corresponding to the locking hook and engaged with the locking hook.

On the other hand, if the inclined guide surface is configured to form a predetermined raised surface, it is possible to more effectively guide the water flow from the splitter fan to the water jet.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a longitudinal sectional view of a washing machine having a pulsator for a washing machine according to the present invention. As can be seen from this figure, the washing machine is rotatable in the outer casing 1 which forms the exterior, the outer tub 2 which can hold the washing water suspended in the outcasing, and the outer tub. It has a spin basket (3) that can hold the stored laundry. The lower part of the outer tub 2 is supported by a suspension 4 which is connected to the upper part of the outcasing 3, and on the bottom thereof, a driving motor for rotating the spin basket 3 and the pulsator 10. 5) and the shaft assembly 7 are provided. In addition, the spin basket 3 is also called a dehydration tank, and a pulsator 10 for generating washing water flow is provided on the bottom of the spin basket so as to be capable of independent rotation with respect to the spin basket 3.

The rotational driving force of the drive motor 5 is transmitted to the shaft assembly 7 through the electric belt 6, and the shaft assembly 7 rotates the spin basket 3 and the pulsator 10 together or separately. It is. In the laundry administration, the spin basket 3 is fixed, and only the pulsator 10 is rotated to form a laundry stream to wash the laundry contained in the spin basket 3, and during spin-drying, the spin basket 3 and the pulsator ( 10) rotate together.

On the other hand, Figure 2 is a perspective view of a washing pulsator according to the present invention, Figure 3 is an exploded perspective view of Figure 2, and Figure 4 is a partially enlarged cross-sectional view of FIG. As can be seen in these figures, the washing machine pulsator 10 according to the present invention, the pulsator main body 20 formed in a substantially disk body and the cover member 30 is coupled to the central portion of the pulsator main body 20 Consists of In the pulsator main body 20, several washing blades 21 are raised on the upper surface along the radial direction. The washing blade 21 extends from the edge of the cover member 30 to the edge of the pulsator body 20 in the radial direction, and washes water and laundry in the spin basket 3 when the pulsator 10 rotates. Rotating fluid serves to generate the washing water flow.

The cover member 30 has a cylindrical shape, is coupled to the upper portion of the pulsator body 20 to form a predetermined receiving space therebetween, and the water flow outlet 31 is opened upward in the axial direction in the upper central region. It is. In the receiving space, fan chambers 32 are provided on both sides of the water flow port 31 facing each other, respectively, and the fan 50 is rotatably provided in these fan chambers, respectively. A water flow guide member 48 for guiding the flow of water formed by each of the dividing fans 50 to the water flow spout 31 is provided between the two side dividing fans 50. have.

The water flow guide member 48 has a duct portion 44 having a pair of inclined guide surfaces 49 for water flow guidance and a disc shape, and a jet cap 41 having a plurality of jet holes 43 formed on the plate surface. It consists of. Only one end of the inclined guide surface 49 of the duct portion 44 is in contact with each other to form a bent portion, and both sides of the inclined guide surface 49 are plate-shaped for maintaining the inclination angle of these inclined guide surfaces 49. The support plates 47 are attached to each other. The inclined guide surface 49 also forms a predetermined raised surface in order to facilitate the flow of the water flow.

And the injection cap 41 in which the many blowing hole 43 is formed is integrally joined to the upper end bending part of the duct part 44. As shown in FIG. The ejection holes 43 are opened in a circular arc shape along the circumferential direction at predetermined angle sections about the rotation axis of the pulsator 10, respectively, and are mutually concentric with respect to the rotation axis of the pulsator 10. It is formed in plurality. On the other hand, the injection cap 41 is formed with a pair of engaging projections 68 extending downwardly opposite the circumferential edge. These locking projections 68 are engaged with the locking holes 34 provided correspondingly to the edges of the water jetting ports 31 of the cover member 30.

The water flow guide member 48 having such a configuration is coupled downward through the water flow port 31 from the upper side of the cover member 30. The water flow guide member 48 is to be seated on the support portion 65 protruding from the upper surface of the corresponding pulsator body 20, at this time, the bleeding edge 42 provided on the lower end of the inclined guide surface 49 is the support portion ( It is accommodated in the guide wall 67 protruding to the (65). The guide wall 67 elastically presses outwardly the bleed edge 42 in close contact with the inner wall thereof, thereby preventing the water flow guide member 48 from being separated.

On the other hand, the water flow port 31 is formed symmetrically by the bent portion of the tuck portion 44, the injection cap 41 is to form the same surface on the upper surface of the cover member (30). The central upward flow formed in the water flow outlet 31 of such a shape is divided into the water flow outlet 31 is formed by the split flow is twisted by the rotation of the pulsator 10, is formed symmetrically mutually As the split streams rise, they merge to form the water column as a whole.

On the other hand, the lower portion of the fan chamber 32 is formed with an inlet 46 for the inflow of the wash water, the upper edge of the cover member 30 a plurality of scattering water holes 36 in communication with the fan chamber 32 Is formed. In addition, the water flow outlet 31 discharges a jet stream provided through the flow path duct 48 from both side split fans 50 at the center of the pulsator 10 to upwardly form a rising column, and scattering holes 36. Discharges the flow flow applied in the radial direction by the dividing fan 30 to the upper side in the radial direction to form a scattering flow.

The sorting fan 50, which is rotatably received in the fan chamber of the cover member 30, has a rotation axis 52 parallel to the rotation axis of the pulsator 10 and fixed radially to the rotation axis 52 in the radial direction. It has a plurality of fan blades (51). The rotating shaft 52 has a pivot end portion 55 protruding hemispherically at the lower end portion, and the pivot end portion 55 is accommodated in the shaft support groove 26 of the pivot support member 25 fixed to the pulsator body 20. . The rotating shaft 52 has a projection receiving groove 56 recessed along the axial direction at the upper end, and the projection receiving groove 56 accommodates the upper support projection 35 protruding from the cover member 30. In this way, the rotation shaft 52 is pivotally supported at the upper and lower ends to rotate.

The pinion 62 is mounted to the lower end region of the rotary shaft 52 so as to be integrally rotated with the rotary shaft 52. Corresponding to the pinion 62, the drive gear 61 is fixedly installed on the bottom surface of the spin basket 3 so as to be toothed with the pinion 62. FIG. As a result, the fractionation fan 50 rotates with the rotation of the pulsator 10, and the driving gear 61, which is relatively stopped with respect to the pulsator 10, is engaged with the pinion 62 of the fractionation fan 50. The sorting fan 50 is rotated by this.

With this configuration, when power is applied in the washing mode to operate the driving motor 5, the pulsator 10 is rotated through the shaft assembly 7. The rotating pulsator 10 forms rotational water flow in the concentric direction on the rotation axis by the washing blades 21 provided on the pulsator body 20. When the pulsator 10 rotates, the split fan 50 installed in the pulsator 10 revolves about the rotation axis of the pulsator 10, and at this time, the pinion 62 of the split fan 50 is rotated. The sorting fan 50 is rotated by the interaction of the drive gear 61 fixed to the spin basket 3. When the fan blade 51 is rotated by the rotation of the split fan 50, the washing water flows in the centrifugal direction in the fan chamber 32 of the cover member 30, and at this time, the rotating water flows in the fan chamber. Will be formed.

The flow flow thus formed is guided to the water flow outlet 31 along the guide inclined surface 49 of the water flow guide member 48 provided in the cover member, and is discharged upward as a central upward flow in the water flow outlet 31. And, a part of the flow stream is discharged through the fly flow hole 36 directly from the fan chamber 32 to form a scatter flow flows upward in the radial direction.

On the other hand, the central upward flow formed at the water jet outlet 31 suppresses the flow downward in the center of the longitudinal circulating streams formed in the spin basket 3 by the rotation of the pulsator 10, The splash water formed in 36) stimulates the laundry locally and simultaneously forms turbulent flow in the spin basket 3 to make the overall pressure distribution of the spin basket 3 uniform and to prevent the kink or entanglement of the laundry, while at the same time cleaning power. Improve.

As described above, in the pulsator for a washing machine according to the present invention, the conventional cumbersome work of fixing the separately formed water flow guide member to the pulsator main body is eliminated, and the water flow guide member having the spray cap and the inclined guide surface is removed. It can be easily coupled or separated from the upper side of the cover member. Thus, the productivity for pulsator production can be improved, and at this time, the water flow guide member can form a raised surface of the inclined guide surface, so that the role of the water flow guide can be more effectively performed.

Claims (4)

1. A washing machine pulsator rotatably installed at a bottom of a washing tank, the washing machine comprising: a pulsator body having a water flow forming portion which is formed on the upper surface of the washing tank to form water flow when rotating; A cover member coupled to an upper portion of the center of the pulsator body to form a predetermined accommodation space, and having a water flow outlet formed on an upper surface thereof; A sorting fan rotatably installed in the receiving space; A guide inclined surface for guiding the upward flow of water from the flow fan to the water jet, and a plate-shaped body blocking the opening of the water jet, and having a plurality of injection holes on the plate and integrally coupled to an upper portion of the guide slope. A washing machine pulsator comprising a water flow guide member having a cap. The pulsator for a washing machine according to claim 1, wherein the water flow guide member is retractably coupled to the cover member through the water flow outlet of the cover member. 3. The hooking device of claim 2, wherein the coupling unit comprises: a pair of hooking hooks extending downwardly opposite the longitudinal edges of the injection caps; And a catching hole provided in the edge of the water jet port corresponding to the catching hook and engaged with the catching hook. The pulsator for a washing machine according to claim 1, wherein the inclined guide surface forms a predetermined raised surface.