KR0172905B1 - A fan of a pulsator for a washing machine - Google Patents

Abstract

According to the present invention, the washing water is sprayed under pressure due to the centrifugal force imparted to the washing water by the rotary vane rotating at high speed, so that washing is performed without friction between the rotating blade and the laundry, thereby reducing laundry damage and tangling, while simultaneously washing performance. And to improve the rinsing performance.

To this end, the present invention is the washing water flow forming means for pressurizing and spraying the washing water in the axial direction and the radial direction of the case (3) to receive the power of the motor 2 to the washing tank 1 to rotate at a high speed to wash the laundry This is the washing wing of the washing machine is mounted.

Description

Washing wing of washing machine

1 is a longitudinal sectional view showing the main part of a conventional washing machine.

2 is a perspective view showing the washing blade of FIG.

Figure 3 is an exploded perspective view showing a state in which the present invention is assembled.

Figure 4 is a longitudinal cross-sectional view showing a rotary blade of the third.

Figure 5 is a longitudinal sectional view showing a washing machine to which the present invention is applied.

Figure 6 is a longitudinal cross-sectional view showing the flow of washing water in accordance with the operation of the present invention.

7 is a cross-sectional view taken along the line A-A of FIG.

* Explanation of symbols for main parts of the drawings

1: washing tank 2: motor

3a, 3b, upper and lower cases 4: permeability

5: rotating shaft 6: rotating blade

7: clutch 8: hollow shaft

9: blade 10: tooth

11: serration home 12: guide protrusion

13: guide groove 14: hanging groove

17: elastic piece 15: mounting groove

16: seams gathering means 18: stripping prevention cap

19: fixing nut 20: thread

21: Jam Jaw 22: Packing

23: sealing member

The present invention relates to a washing wing of a washing machine, and more particularly, washing is performed by washing water sprayed with high pressure without friction with a rotary wing during washing, thereby reducing washing and damage of the laundry and improving washing performance. I would have to.

In general, a washing machine is a product that removes various contaminants attached to clothes, bedding, etc. by using a detergent, an emulsifying action, and a friction action of water flow due to the rotation of the washing blade and the impact of the washing wing on the laundry. By detecting the amount and type of laundry, the washing method is automatically set, and the water level of the washing water is supplied to the appropriate level according to the amount and type of laundry, and then washing is performed under the control of the microcomputer.

At this time, the washing blade 27 of the conventional washing machine, as shown in FIGS. 1 and 2, the washing protrusion 28 and the permeable hole 29 are disposed radially on the upper surface of the circular body of inelastic material made of plastic or the like. And, the lower portion of the body is configured to be radially mounted a plurality of water flow forming plate (30).

Therefore, in the conventional washing machine, when a user puts laundry into the dehydrating washing tank 1 and then presses the washing mode selection button, the microcomputer operates the motor 2 to rotate the washing blade 27 several times to the left and right. After detecting the weight of the laundry with the load applied to the washing wings 27, the appropriate program is executed to perform the washing.

At this time. The washing is the power of the motor (2) mounted on the lower portion of the outer tank is transmitted to the washing blade 27 through the reduction device 31, the washing water flow is formed by the friction of the washing blade 27 and the washing water, and the body auxiliary As the water flow forming plate 30 in the lower portion rotates, the washing water under the washing wing 27 is pressurized by the centrifugal force acting on the washing water, and the gap between the washing tank 1 and the washing wing 27 and the water permeable hole 29. The washing is performed by impacting the laundry by ejecting it.

That is, while the washing water generated by the rotation of the washing blade 27 rubs and impacts the laundry, washing is performed by the direct friction and impact between the rotating washing blade 27 and the laundry.

On the other hand, the upper side of the washing tank (1) is equipped with a collecting means 32 for collecting foreign substances such as seams, so that the seams contained in the washing water raised along the flow path between the washing tank (1) and the guide member (33) Foreign matter is collected by the filter 25 of the collecting means 32.

However, since the conventional washing blade 27 has a low rotational speed (200-500 rpm) of the washing blade 27 at the time of washing, the pressing force of the washing water is small due to the water flow forming plate 30, resulting in the washing water flow. The washing effect was weak.

Therefore, in the related art, since the washing effect is almost caused by mechanical friction and impact action between the laundry and the washing wings 27, there is a lot of concern that the laundry may be tangled or severely damaged.

In addition, when the laundry is caught on the washing blade 27, the laundry does not come out easily and the motor 2, which is the driving source, is overloaded, thereby shortening the life of the motor 2.

On the other hand, in the related art, since the rotational force of the motor 2 should be reduced and transmitted during washing, a reduction device 31 for reducing the rotational speed of the motor 2 was required, which makes it difficult to compact the product, and also reduces manufacturing costs. There were many problems, such as increasing the price competitiveness of the product.

The present invention is to solve the above-mentioned problems, while the washing water is sprayed by pressing the washing water by the centrifugal force imparted to the washing water at high speed when rotating the washing to reduce the damage and tangling of the laundry at the same time It is an object of the present invention to provide a washing vane of a washing tank capable of improving washing performance and rinsing performance.

In order to achieve the above object, the present invention provides a washing machine equipped with a washing water flow forming means for pressurizing and spraying the washing water in the axial direction and the radial direction of the case so that washing of the laundry is performed at a high speed by receiving the power of the motor in the washing tank. It is a washing wing.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 7.

Figure 3 is an exploded perspective view showing a state in which the present invention is assembled, Figure 4 is a longitudinal sectional view showing a rotary blade of Figure 3, Figure 5 is a longitudinal sectional view showing a washing machine to which the present invention is applied, Figure 6 is an operation of the present invention It is a longitudinal cross-sectional view showing the flow of the wash water according to, Figure 7 is a cross-sectional view taken along the line AA of FIG.

The present invention is equipped with a washing water flow forming means for pressurizing and spraying the washing water in the axial direction and the radial direction of the case (3) by receiving the power of the motor (2) in the center of the inside of the washing tank (1) of the washing machine The washing is configured to be performed.

At this time, the washing water flow forming means is formed with a plurality of permeable holes (4) in the cylindrical container is assembled to each other and fixed to the bottom of the washing tank (1) and the upper and lower cases (3a) (3b), and the upper and lower cases ( It is inserted in the 3a) (3b) and is connected to the rotary shaft 5 is composed of a rotary blade 6 for imparting centrifugal force and thrust to the wash water at high speed rotation.

In addition, the rotary shaft (5) is equipped with a clutch (7) for regulating the power transmission path to selectively transmit the rotational force of the motor (2) to the rotary blade (6) or dehydration tank.

On the other hand, the plurality of blades 9 formed on the outer peripheral surface of the hollow shaft 8 of the rotary blade 6 is formed to have a helical curved surface inclined at an angle with respect to the axial direction of the hollow shaft (8).

In addition, a serration groove 11 is formed on the lower inner circumferential surface of the hollow shaft 8 of the rotary blade 6 to engage the teeth 10 formed to correspond to the upper outer circumferential surface of the rotary shaft 5.

And, as the guide projection 12 is inserted into the guide groove 13 in the upper end of the hollow shaft 8 of the rotary blade 6, the installation groove 15 coincides with the engaging groove 14 formed in the hollow shaft (8). And a seam collecting means (16) formed therein is inserted into the upper end of the hollow shaft (8) of the rotary blade (6) into which the seam collecting means (16) is inserted; An elastic strip 17 is inserted into the installation groove 15 of the seam collecting means 16 so as to receive the elastic piece 17 so that the seam collecting means 16 is fixed so as not to be removed.

On the other hand, the lower end outer peripheral surface of the case 3 is inserted through the bottom of the washing tank 1, the thread 20 is formed is fastened to the fixing nut 19 is formed, the hook formed in a columnar shape on the upper thread 20 The lower part of the jaw 21 improves the adhesion state with the washing tank 1 when the case 3 is attached to the washing tank 1, thereby preventing vibration of the case 3 caused by the high-speed rotation of the rotary blade 6 during washing. Dustproof members such as the packing 22 are inserted.

In addition, a sealing member for preventing the inflow of the clutch (7) of the wash water between the rotary shaft (5) for transmitting the power of the motor (2) to the rotary blade (6) and the through hole of the bottom of the outer tank through which the rotary shaft (5) passes ( 23) is installed and configured.

Referring to the operation and effects of the present invention configured as described above are as follows.

When washing with a washing machine, when washing is started by pressing the washing operation button in a state in which preparation for washing is completed, first, the motor 2 is driven so that the driving torque of the motor 2 is rotated through the rotating shaft 5. As it is transmitted to the rotary blade 6 is rotated at high speed in the case (3).

As such, the washing water flow formed as the rotary blade 6 rotates depends on the rotation direction of the rotary blade 6, which will be described below in more detail.

First, when the rotary blade 6 rotates clockwise as shown in FIGS. 6 and 7 by receiving the driving force of the motor 2, the centrifugal force acts radially on the wash water in the case 3. At the same time, thrust acts in the axial direction.

At this time, due to the centrifugal force and thrust applied by the rotary blade 6, the cross-sectional area of the permeable holes 4 formed on the outer peripheral surface of the case 3 is very small compared to the amount of wash water to escape from the case 3, which is very The large pressure acts so that the washing water in the case 3 is discharged out through the permeation hole 4 formed in the case 3 with a strong discharge pressure.

In this case, the washing water flow formed in the washing tank 1 exhibits a flow form as indicated by solid arrows in FIGS. 6 and 7.

That is, the flow of water flow in the clockwise rotation of the rotary blade 6 is introduced through the water flow discharged in the radial direction from the center of the case 3 due to the centrifugal force and thrust and the permeable hole 4 of the lower case 3 It is divided into the water flow discharged above the case 3 along the axial direction.

On the other hand, when the rotary blade 6 is inverted and rotated counterclockwise, the flow of the washing water flow is changed as indicated by the dotted arrows in FIGS. 6 and 7.

Particularly, at this time, the washing water discharged along the axial direction of the rotary blade 6 is reversed from the rotation in the clockwise direction, so that the washing water flows in from the upper part of the case 3 and discharges toward the lower side of the case 3. Will be displayed.

In this way, when the rotary blade 6 rotates clockwise and counterclockwise, the flow shape of the washing water flowing and discharged along the axial direction of the rotary blade 6 is different from the blades constituting the rotary blade 6 ( This is due to the geometry of 9).

That is, the blade 9 is spirally formed as shown in FIG. 7, while the blade 9 is twisted by a certain angle with respect to the axial direction on the outer circumferential surface of the hollow shaft 8 of the rotary blade 6. It is formed so as to act on the washing water differently depending on the direction of rotation.

Accordingly, as the rotary blade 6 rotates while rotating in the clockwise and counterclockwise direction, the washing water that is pressurized and discharged is applied directly to the laundry flowing with the washing water around the case 3 to apply an impact force. On the other hand, because the stretching action occurs in the laundry so that the laundry is performed effectively.

On the other hand, since the serration groove 11 is formed in the lower inner circumferential surface of the hollow shaft 8 of the rotary blade 6, the rotary shaft 5 as the tooth 10 formed corresponding to the outer circumferential surface of the upper end of the rotary shaft 5 is inserted. Is firmly engaged with the

In addition, since the thread 20 is formed on the outer peripheral surface of the lower end of the case 3, the lower end of the case 3 is inserted through the bottom of the washing tub 1 during assembly, and then the fixing nut 19 is screwed into the thread 20. The case 3 is firmly fixed to the bottom surface of the washing tub 1 by fastening to.

At this time, since the packing 22 is inserted into the lower portion of the hooking jaw 21 formed in a columnar shape on the top of the screw thread 20, when the case 3 is attached to the washing tank 1, the adhesion state with the washing tank 1 is improved and the washing is performed. It is possible to prevent the vibration of the case (3) generated during the high speed rotation of the rotary blade (6) of the rotary blade (6).

In addition, since the sealing member 23 is installed between the rotary shaft 5 for transmitting the power of the motor 2 to the rotary blade 6 and the through hole of the bottom of the outer tub through which the rotary shaft 5 passes, washing water is leaked. The phenomenon which flows into the clutch 7 is prevented.

On the other hand, the clutch (7) connected to the rotary shaft (5) of the rotary blade (6) transfers the rotational force of the motor (2) only to the rotary blade (6) during washing, and power transmission for transmitting the rotational force only to the dehydration tank (dehydration). It only performs the intermittent function of the direction and does not reduce the rotational speed of the motor 2.

Accordingly, the present invention does not need to be equipped with a complicated and large reduction device as in the prior art, thereby not only compacting the product but also reducing the manufacturing cost due to not having to install expensive parts.

In addition, when washing is performed by the counterclockwise rotation of the rotary blade (6), the seam collecting means 16 is installed on the upper end of the hollow shaft (8) of the rotary blade (6) stripping prevention cap 18 Foreign substances such as seams and hairs contained in the wash water flowing into the through hole 24 on the upper surface and flowing along the hollow shaft 8 of the rotary blade 6 are filtered by the filter 25 of the seams collecting means 16. It is filtered and gathered.

At this time, the hollow shaft 8 of the rotary blade 6 is formed through the hole 26 so that the wash water passing through the filter 25 can pass through the hollow shaft (8).

Therefore, the phenomenon in which foreign matters such as seams are reattached to the laundry is prevented, so that the laundry is kept clean after washing.

On the other hand, in the present invention, since the rotary blade 6 is installed in the case 3, the laundry is prevented from rubbing against the rotary blade 6 or being wound around the rotary blade 6 to hinder the rotation of the rotary blade 6. Due to this, not only can the laundry be prevented from being damaged, but the load applied to the motor 2 can be reduced to prolong the life of the motor 2.

As described above, in the present invention, the laundry is pressurized and sprayed due to the centrifugal force imparted to the washing water by the rotary blade 6 rotating at a high speed so that the laundry is performed without friction between the rotary blade 6 and the laundry. It is a very useful invention that can improve the washing performance by reducing the damage and tangling and at the same time improve the washing performance and rinsing performance.

Claims (8)

Washing wing of a washing machine, characterized in that the washing blade assembly for mounting the pressure injection of the washing water in the axial and radial directions of the case so that the washing of the laundry is performed as the high-speed rotation receives the power of the motor to the washing tank. The washing blade assembly of claim 1, wherein a plurality of perforation holes are formed in the cylindrical container, and the upper and lower cases are fixed to the bottom of the washing tank, and the upper and lower cases are inserted into the upper and lower cases and connected to a rotating shaft to provide centrifugal force to the washing water at high speed. And Washing wing of the washing machine, characterized in that consisting of a rotary wing for imparting thrust. The washing blade of claim 2, wherein the plurality of blades formed on the outer circumferential surface of the hollow shaft of the rotary blade have a spiral curved surface inclined at an angle with respect to the axial direction of the hollow shaft. According to claim 2, Between the rotary blades and the motor is connected to the rotary shaft for transmitting the rotational force of the motor to the rotary blades, the rotational shaft for intermittent to the power transmission path to selectively transmit the rotational force of the motor to the rotary blades or dehydration tank Washing wings of the washing machine characterized in that the clutch is mounted. According to claim 2, As the guide shaft is inserted into the guide groove is inserted into the upper end of the hollow shaft of the rotary blade is a seam collecting means having a mounting groove formed to match the engaging groove formed in the hollow shaft is inserted, the hollow portion of the seam collecting means The washing blade of the washing machine, characterized in that the elastic piece is inserted to receive the elasticity is prevented detachment of the seam collecting means in accordance with the engaging groove of the rotary blade hollow shaft is inserted. According to claim 2, The washing blade of the washing machine, characterized in that the serration groove is formed in the inner circumferential surface of the hollow shaft lower end of the rotary blade is formed to engage the teeth formed corresponding to the outer circumferential surface of the rotary shaft. According to claim 2, wherein the lower outer peripheral surface of the case is inserted through the bottom of the washing tub is formed with a screw thread for fastening the fixing nut, the lower portion of the hook jaw formed in a columnar shape on the upper screw thread when the case is attached to the washing tank with the washing tank Washing blade of the washing machine, characterized in that the packing is inserted to prevent the vibration of the case caused by the high-speed rotation of the rotary blade during washing to improve the close state. The washing blade of claim 2, wherein a sealing member is provided between the rotating shaft for transmitting the power of the motor to the rotating blade and the through hole of the bottom surface of the outer tub through which the rotating shaft passes.