KR100352474B1 - Foreign body discharge device of washing machine - Google Patents

Abstract

The present invention relates to a washing machine, and more particularly, to a foreign matter discharge device to automatically discharge the foreign matter collected in the wash water when the rotating tub is rotated.

The foreign material discharge device of the washing machine according to the present invention is formed with a discharge port communicating with the outside of the rotary tub at the upper end of the lifting guide duct is installed, the discharge port is provided with a discharge cover that is opened and closed by centrifugal force generated when the rotary tub is rotated, The lower end of the discharge cover is provided with a locking device to control the opening and closing of the discharge cover by the flow of the washing water flowing through the rising guide duct. Therefore, in the laundry administration, the discharge cover is kept closed so that foreign matters in the wash water are filtered by the strainer, and in the dehydration stroke, the discharge cover is automatically opened by the centrifugal force, thereby removing the filtered foreign matter.

Description

Foreign body discharge device of washing machine

The present invention relates to a washing machine, and more particularly, to a foreign matter discharge device to automatically discharge the foreign matter collected in the wash water when the rotating tub is rotated.

In general, a washing machine performs washing strokes, rinsing strokes, and dehydrating strokes by rotating a rotating tub and a pulsator through a driving force of a motor. It is a device that washes using friction of water and rotating tub.

As shown in FIG. 1, the washing machine is provided with a water tank 2 and a rotating tank 3 inside the main body case 1, and a pulsator for stirring the washing water inside the rotating tank 3 ( 4) is provided. In addition, a driving motor 5 for driving the rotating tank 3 and the pulsator 4 is provided below the water tank 2, and the driving force of the driving motor 5 is applied to the center of the bottom of the water tank 2. A clutch 6 for controlling power transmission is provided so as to selectively drive the rotary tub 3 and the pulsator 4 by the transmission.

On the inner side of the rotary tub 3, a rising guide duct 7 for guiding the water flow generated by the rotation of the pulsator 4 to the upper portion of the rotary tub 3 is provided. The inlet portion 7a is formed at the lower side adjacent to the pulsator 4, and the outlet portion 7b is formed at the upper side of the rotating tank 3, and the lift guide duct 7 is formed as the inlet portion 7a. The introduced washing water is discharged to the upper outlet portion 7b along the inner guide passage.

In addition, a foreign matter strainer 8 is installed at the outlet of the ascending guide duct so that foreign substances or debris contained in the wash water can be filtered out. At this time, the strainer (8) is fitted to the outlet (7b) to enable the separation of the strainer (8) when the foreign matter is full.

That is, in the conventional washing machine, while the washing water is circulated through the rising guide duct 7, the foreign matter is filtered by the strainer 8, thereby improving the washing effect due to the free fall, as well as purifying the washing water.

However, since the foreign matter collecting structure of the conventional washing machine configured as described above is provided with a strainer 8 for filtering foreign matters inserted into the outlet portion 7b of the ascending guide duct, when foreign matters accumulate in the strainer 8 due to long use, There was a hassle to separate the strainer (8) to empty the foreign matter.

The present invention is to solve such a problem, an object of the present invention is to automatically discharge the foreign matter filtered in the strainer when the rotating tub is rotated at high speed, the user does not need to empty the foreign matter periodically in the washing machine To provide a device.

1 is a side cross-sectional view showing the internal structure of a conventional washing machine.

Figure 2 is a side cross-sectional view showing the overall configuration of the washing machine is installed foreign matter discharge apparatus according to the present invention.

3 and 4 are cross-sectional view showing the structure of the foreign matter discharge apparatus according to the present invention, Figure 3 shows a state in which the discharge cover is closed, Figure 4 shows the state in which the discharge cover is open.

5 is a perspective view showing the structure of the discharge cover and the locking device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: main body case, 11: tank,

12: rotary tub, 13: pulsator,

14: drive motor, 20: lift guide duct,

24: sieve screen, 30: foreign body discharge device,

31: outlet, 32: outlet cover,

33: opening limit, 40: locking device,

41: lock bar, 42: lift plate,

43: Hanging hook.

The present invention for achieving the above object is a water tank in which washing water is stored, a rotating tank rotatably installed in the inside of the tank, a pulsator installed at the bottom of the rotating tank to form a water flow, and the pulsator In the washing machine having a lifting guide duct is installed on the inner surface of the rotating tub so that the washing water generated by the rotational force is guided to the upper end of the rotating tub and ejected,

A filter net of the mesh fixed to the outlet of the ascending guide duct so that foreign matters in the washing water can be filtered out, and an outlet formed in the wall surface of the rotary tub adjacent to the filter net so that the foreign matter filtered by the filter net can be discharged; A hinge coupled to the outlet so that the opening and closing is opened and the discharge cover opened by the centrifugal force when the rotary tub rotates at a high speed, and the rotation adjacent to the discharge cover so that the discharge cover is not opened when the wash water flows inside the ascending guide duct. It is a configuration including a locking device installed on the inner surface of the tank.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 2 is a side cross-sectional view showing the overall configuration of the washing machine is installed foreign matter discharge device according to the present invention, Figure 3 and Figure 4 is a cross-sectional view showing the structure of the foreign material discharge device according to the invention, Figure 3 is a discharge cover is closed 4 is a view showing an open state of the discharge cover. And, Figure 5 is a perspective view showing the structure of the discharge cover and the locking device according to the present invention.

The washing machine according to the present invention, as shown in this, is provided with a cylindrical water tank 11 having an upper side opened so that the washing water is filled in the main body case 10 forming the appearance. The inside of the water tank 11 is rotatably set up, and the rotating tank 12 is provided with a plurality of dehydration holes perforated on the wall surface. At the bottom of the rotating tub 12, a pulsator 13 is provided which rotates forward and backward to form a washing stream.

In addition, a driving unit for driving the rotating tank 12 and the pulsator 13 is provided below the water tank 11. The drive unit comprises a drive motor 14 for generating power and a clutch 15 for simultaneously or selectively rotating the pulsator 13 and the rotating tub 12 by the rotational force of the drive motor 14. Here, between the drive motor 14 and the clutch 15, a belt 16 for transmitting power transmission is provided.

In addition, a drain valve 17 for discharging the washing water in the tank to the outside is installed at the lower part of the water tank 11, and the drain valve 17 has a drain pipe 18 extending outward of the main body case 10. Connected.

In addition, an inner side surface of the rotary tub 12 is provided with a rising guide duct 20 for guiding and dropping the washing water sprayed in the circumferential direction by the rotational force of the pulsator 13 to the upper end of the rotary tub 12. do.

The lift guide duct 20 has an inlet portion 21 formed at a lower side adjacent to the pulsator 13, and an outlet portion 22 is formed at an upper side of the rotary tub 12 to the inlet portion 21. The introduced washing water is guided to the washing water to be discharged to the upper outlet 22 along the guide passage formed therein.

That is, when the pulsator 13 is rotated, the wing 13a provided at the lower portion of the pulsator 13 generates a partial output of the wash water, and the wash water is the inlet portion of the rising guide duct 20. 21) is guided to the outlet 22 of the upper end of the rotary tub, and to increase the washing effect of the laundry while falling from the top to the bottom.

In addition, the outlet 22 of the ascending guide duct 20 is provided with a foreign matter strainer 24 to filter foreign matter contained in the wash water.

As shown in Figure 3, 4, 5, the foreign matter sieve 24 is composed of a wire mesh or plastic mesh provided in a box shape, the open back is in communication with the outlet 22 of the rising guide duct to wash. Water is discharged and foreign matter is filtered out.

And, in the washing machine according to the present invention, when the rotary tub 12 rotates at a high speed, the foreign matter filtered by the strainer 24 may be discharged out of the rotary tub 12 by centrifugal force. A foreign matter discharge device 30 is installed to allow the foreign matter filtered at the rear to be automatically discharged.

The foreign substance discharge device 30 has an outlet 31 formed on the wall surface of the rotary tub 12 in which the strainer 24 is installed, and a discharge cover 32 hinged to the outlet 31 so that the outlet 31 is opened and closed. And a locking device 40 for controlling the opening and closing of the discharge cover 32.

Discharge cover 32 is hinged to the discharge port 31, both sides of the upper end so that it can be opened automatically by the centrifugal force generated during the rotation of the rotating tub.

In addition, the locking device 40 may raise the locking bar 41 and the locking bar 41 installed on the inner surface of the rotating tub 12 so as to be able to slide up and down inside the lifting guide duct 20. The plate-shaped rising plate 42 fixed to one side to the lock bar 41 so that the lock bar 41 is caught by the discharge cover 32 when the lock bar 41 is raised ( It consists of a catch ring 43 formed at the lower end of the 32.

At this time, the locking rod 41 is supported by a plurality of support rings 44 formed on the inner surface of the rotating tub 12, the rising plate 42 is the flow of the washing water flowing inside the rising guide duct 20 It is installed to be perpendicular to the lock bar 41 so that it can be raised with the lock bar 41 by.

Therefore, when the washing water flows in the ascending guide duct 20, the locking rod 41 is raised to lock the discharge cover 32, so that the washing water is ejected to the inside of the rotary tub 12 through the strainer 24. . In addition, when the washing water does not flow in the ascending duct during the dehydration administration, the locking bar 41 is lowered due to its own weight, thereby releasing the locking of the discharge cover 32. At this time, when the rotating tub 12 rotates at a high speed, the discharge cover 32 is opened by the centrifugal force.

In addition, an opening limiting jaw 33 is formed at an upper end of the discharge port 31 to which the discharge cover 32 is hinged, and is formed to be inclined outwardly of the rotary tub 12 so that the opening of the discharge cover 31 can be restricted. . The opening limiting jaw 33 is intended not to be caught by the inner surface of the water tank 11 installed outside the rotating tank 12 even if the discharge cover 32 is rotated in the open state.

Next will be described the operation of the washing machine according to the present invention configured as described above.

When the user starts the washing machine, the washing machine performs a washing stroke, a rinsing stroke, and a dehydrating stroke. This series of strokes is programmed and automatically controlled by a controller (not shown).

In the washing stroke, the washing water is filled in the water tank 11 and the rotating tank 12 while the laundry is put in the rotating tank 12, and the pulsator 13 repeats the forward rotation and the reverse rotation by receiving the power of the driving unit. . At this time, the washing water in which the detergent is added is filled up to a level line of a predetermined height so that all the laundry can be locked, and the laundry is agitated with the laundry by the forward / reverse rotational movement of the pulsator 13 to proceed with the washing.

The rinsing stroke is performed in the same operation as the washing stroke except for the addition of detergent, and the dehydrating stroke is washed by centrifugal force by rotating the rotary tub 12 at a high speed while the water in the tank 11 is drained through the drain pipe. It will dehydrate the remaining water.

Meanwhile, the washing water under the pulsator 13 flows into the inlet 21 of the ascending duct 20 by the rotational force of the pulsator 13 during the washing process, and then the upper part along the inner guide passage. Being guided to the inside of the rotating tub 12 through the outlet portion 22 is provided with a sieve 24 is to increase the washing effect.

At this time, the washing water flowing inside the ascending guide duct 20 is pushed upward of the rising plate 42 of the locking device, as shown in Figure 3, the rising plate 42 is the locking rod 41 To push up, so that the discharge cover 32 is kept locked, the washing water is ejected to the inside of the rotating tub 12, the foreign matter is filtered by the strainer 24.

And, when the dehydration stroke is performed, as shown in Figure 4, the washing water does not flow in the ascending guide duct 20, the locking rod 41 is lowered by its own weight so that the locking of the discharge cover 32 Will be terminated. In this state, when the rotating tub 12 rotates at a high speed, the discharge cover 32 is opened by the centrifugal force, and foreign substances caught in the strainer 24 are discharged to the outside of the rotating tub 12 by the centrifugal force. do. At this time, the discharge cover 32 is limited to the opening by the opening limiting jaw 33, so as not to interfere with the inner surface of the water tank (11).

Then, when the dehydration stroke is terminated and the rotating tub 12 is stopped, the discharge cover 32 is closed by its own weight, and when the washing water flows to the ascending duct 20 when the washing stroke is performed again, the locking rod ( 41) will rise and remain locked.

As described above in detail, the foreign material discharge device of the washing machine according to the present invention is formed with a discharge port communicating with the outside of the rotary tub at the upper end of the lifting guide duct is installed, the opening and closing the centrifugal force generated during the rotation of the rotary tub The discharge cover is installed, the lower end of the discharge cover is provided with a locking device to control the opening and closing of the discharge cover by the flow of the washing water flowing through the guiding duct. Therefore, in the laundry administration, the discharge cover is kept closed so that foreign matters in the wash water are filtered by the strainer, and in the dehydration stroke, the discharge cover is automatically opened by the centrifugal force, thereby removing the filtered foreign matter.

Claims (3)

A water tank 11 in which washing water is stored, a rotating water tank 12 rotatably installed in the inside of the water tank, a pulsator 13 installed on the bottom of the water tank to form a water flow, and a rotational force of the pulsator. In the washing machine having a rising guide duct 20 is installed on the inner surface of the rotating tub 12 so that the washing water flow generated by the guide is discharged to the upper end of the rotating tub 12, Filter net 24 of the mesh is fixed to the outlet of the lifting guide duct 20 so that the foreign matter of the wash water, and the rotating tank 12 adjacent to the sieve so that the foreign matter filtered in the filter net can be discharged A discharge port 31 formed on the wall surface of the) and the hinge is coupled to the discharge port so that the discharge port is opened and closed, and the discharge cover 32 is opened by the centrifugal force when the rotary tub 12 is rotated at a high speed, and inside the rising guide duct And a locking device (40) installed on an inner surface of the rotating tank adjacent to the discharge cover so that the discharge cover is not opened when the washing water flows into the washing machine. The method of claim 1, The locking device 40 is a locking rod 41 which is installed to be slidable up and down on the inner surface of the rotating tub 12, and the discharge cover 32 so that the discharge cover 32 is locked when the locking rod is raised A hook ring 43 formed at the end of the cover and a flat plate-shaped lift plate 42 formed on the lock rod so that the lock rod 41 can be raised when the wash water flows inside the lift guide duct 20. Foreign material discharge device of the washing machine comprising a. The method of claim 1, One side of the outlet 31 to which the discharge cover 32 is hinged, the opening limiting jaw limiting the opening of the discharge cover so as not to interfere with the inner surface of the water tank 11 when the discharge cover 32 is opened ( 33) a foreign substance discharge device of the washing machine, characterized in that formed.