KR100274675B1 - Tub of drum type washing machine - Google Patents

Abstract

PURPOSE: A fixing tub is provided to easily drain washing water toward a drain slot by forming an inclined drain passage. CONSTITUTION: A drain passage(21) is formed in a fixing tub(20) to easily drain washing water by inclining from the front portion to the rear portion of the fixing tub(20). A drain slot(22) is formed in the lowest portion of the drain passage(21) to easily discharge the washing water. A drain pipe(30) is connected with the drain slot(22). The drain passage(21) guides washing water in the fixing tub(20) toward the drain slot(22). Thereby, an inclination of the drained water toward a rotating direction of a rotating tub(13) is prevented.

Description

Fixing tank of drum washing machine

The present invention relates to a drum washing machine, and more particularly, to a fixing tank formed with a drainage path on the lower inner surface so that the wash water can easily flow to the drain pipe installed in the lower portion of the fixing tank.

In general, a drum washing machine is a device for washing laundry by using a drop generated by the rotation of a rotating tub provided in a drum shape. The drum washing machine has an effect such as tapping the laundry with a laundry bat, and thus has a large washing effect and less damage to the laundry. have.

The drum washing machine body is provided with a cylindrical fixing tank of which one side is opened so that the washing water can be filled. The fixing tank is provided with a suspension gas spring for elastically supporting the fixing tank, and a lower part of the fixing tank is provided with a shock absorber that buffers the fixing tank so as to absorb vibration during washing.

A cylindrical rotating tub is provided inside the fixed tub. The rotating tub is driven by a drive motor installed at the bottom of the main body, a pulley for rotating the rotating tub is installed at the rear of the rotating tub, and the pulley is connected to the driving motor via a belt. In addition, the rotating tub is formed with a plurality of dehydration holes on the wall is free to the inflow and outflow of the wash water, the water contained in the laundry through the dehydration hole during the dehydration is released.

In addition, a drainage pipe is installed at the lower side of the fixing tank so that the wash water can be drained during the rinsing or dehydration process, and a drain pump for forcibly draining the wash water is installed at the end of the drainage pipe.

1 is a cross-sectional view showing a coupling structure of a drain pipe installed in a fixing tank of a conventional drum washing machine. As shown in this, the conventional drum washing machine is formed with a drain hole (2) communicating with the inside so that the wash water freshened in the fixing tank (1) at one side of the lower end of the fixing tank (1), the drain hole (2 ) Is combined with a drain pipe (3) for guiding the discharged wash water to the outside.

At this time, the drain hole (2) is formed at the bottom of the fixing tank (1) to facilitate the drainage of the wash water contained in the fixing tank (1). At the upper end of the drain pipe 3, the drain pipe 3 is fitted into the drain hole 2, and a fitting groove 3a is formed to form an airtight structure to prevent leakage of the wash water.

The conventional drum washing machine configured as described above drains the washing water through the drain pipe 3 when the washing water is exchanged or the washing water is dewatered in the process of rinsing the laundry. In particular, during the dehydration, when the rotating tub 4 rotates at a high speed, the water contained in the laundry falls into the fixed tub 1 by centrifugal force, and the water discharged toward the fixed tub 1 is fixed tub (1). It flows downward along the inner surface of the drain through the drain (2).

However, in the conventional drum washing machine, when the rotating tank 4 is rotated at a high speed in the process of dewatering the laundry, the washing water discharged through the dewatering hole 4a is in the normal direction by the centrifugal force of the rotating tank 4. The force to fly and the force to fly in the tangential direction by the circumferential speed of the rotating tub 4 are discharged in the synthesized direction. That is, the discharged wash water has a force to rotate in the rotation direction of the rotary tub 4 as a whole, and pushes up the washing water flowing along the inner surface of the fixed tub 1 in the direction in which the rotary tub 4 rotates. Will interfere. In addition, when the rotating tub 4 rotates at a high speed, an air flow rotated along the rotating tub 4 is formed between the outer surface of the rotating tub 4 and the inner surface of the fixed tub 1 to fix the tub 1. There was a problem that the drainage is not smooth because it obstructs the flow of the wash water flowing toward the drain hole (2) along the inner surface of the.

The present invention is to solve such a problem, an object of the present invention is to form a drainage inclined in the direction in which the rotating tank is rotated from the drain hole formed in the lower portion of the fixed tank, washing water flowing in the inner surface of the fixed tank during the dehydration administration easy toward the drain hole It is to provide a fixing tank of the drum washing machine to be discharged.

1 is a cross-sectional view showing a coupling structure of the fixing tank and the drain pipe of the conventional drum washing machine.

Figure 2 is a perspective view showing the overall structure of a drum washing machine to which the present invention is applied.

3 is a cross-sectional view showing a coupling structure of the fixing tank and the drain pipe according to the present invention.

Figure 4 is a perspective view showing the structure of the fixing tank according to the present invention.

5 is a cross-sectional view taken along the line VV ′ of FIG. 4.

6 is a cross-sectional view taken along the line VI-VI 'of FIG. 3.

Explanation of symbols on the main parts of the drawings

10: main body, 11: string spring,

12: shock absorber, 13: turntable,

14: drive motor, 20: fixed tank,

21: drain, 22: drain,

30: drain pipe, 40: drain pump.

The present invention for achieving the above object, the fixing tank is installed in the main body and the wash water is fresh water, the rotating tank is formed in the wall of the plurality of dewatering holes when rotatably installed inside the fixing tank, and the wash water of the fixing tank In the drum washing machine having a drain hole formed in the lower portion of the fixing tank and a drain pipe coupled to the drain hole to guide the wash water discharged through the drain hole,

The fixing tank is formed to be recessed in the inner surface thereof so as to easily drain the washing water during the dehydration stroke in which the rotating tub is rotated at a high speed, and is formed to be inclined upwardly by a predetermined angle from the drain hole toward the direction in which the rotating tub is rotated. The configuration is characterized in that the provided.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Figure 2 is a perspective view showing the overall structure of the drum washing machine to which the present invention is applied, Figure 3 is a cross-sectional view showing a coupling structure of the fixing tank and the drain pipe according to the present invention, Figure 4 is a perspective view showing the structure of the fixing tank according to the present invention. 5 is a cross-sectional view taken along the line VV ′ of FIG. 4, and FIG. 6 is a cross-sectional view taken along the line VI-VI ′ of FIG. 3.

Drum washing machine according to the present invention, as shown in this, is provided with a cylindrical fixing tank 20 is opened on one side so that the washing water is filled in the main body 10, the fixing tank 20 has an opening It is installed facing the side so that the user can put or take out the laundry from the side. On the upper side of the fixing tank 20, a plurality of suspension gas springs 11 for elastically supporting the fixing tank 20 is installed. That is, the fixing tank 20 is installed in the form of hanging in the interior of the main body 10 by the suspension gas spring (11). And the lower part of the fixing tank 20 is provided with a shock absorber 12 for buffering the holding tank 20 to absorb the vibration during washing.

A cylindrical rotating tub 13 is provided inside the fixed tub 20. The rotating tub 13 is driven by the drive motor 14 installed at the bottom of the main body 10, the rear of the rotating tub 13 is provided with a pulley (not shown) for rotating the rotating tub 13, This pulley is connected via a drive motor 14 and a belt 15. In addition, the rotary tub 13 has a plurality of dehydration holes (13a) formed on the wall surface is free to flow into and out of the wash water, the water contained in the laundry through the dehydration holes (13a) when dewatering Get out.

In addition, a plurality of lifters 13b protruding inwardly are provided inside the rotary tub 13 at equal intervals to increase the washing effect by pulling the laundry during the rotation of the rotary tub 13. In addition, a drainage pipe 30 is installed at the lower side of the fixing tank 20 so as to enable the drainage of the wash water during the rinsing process or the dehydration process, and a drain pump 40 for forcibly draining the wash water at the end of the drainage pipe 30 is provided. Is installed.

On the other hand, the fixing tank 20 according to the present invention, as shown in Figure 3 and 4, the drainage passage 21 is formed to be inclined at the lower end to facilitate the drainage of the wash water. A drain hole 22 is formed at one side of the drain passage 21, and a drain pipe 30 is connected to the drain hole 22.

The drainage passage 21 is formed to be recessed downward from the inner bottom surface of the fixing tank 20 and is formed to have a predetermined width to guide the wash water contained in the fixing tank 20 toward the drain hole 22. . At this time, the drainage passage 21 is formed to be inclined by a predetermined angle α from the front to the rear of the fixing tank 20 in which the opening is formed, and the drainage hole 22 is formed at the rear end where the drainage passage 21 ends. That is, the drain hole 22 is formed in the lowest portion of the drainage passage 21, so that the washing water guided through the drainage passage 21 can be easily discharged.

5 and 6, the drainage passage 21 is formed to be inclined upward toward the direction in which the rotating tub 13 is rotated from the drain hole 22 formed at the rear of the lower end of the fixing tub 20. That is, the drainage passage 21 according to the present invention is formed to be inclined backward from the front of the fixing tank 20 in which the opening is formed, and at a predetermined angle (β) in the direction in which the rotating tank 13 is rotated from the drain hole 22. It is formed to be inclined upwardly to guide the flow of water.

This structure rotates in consideration of the property that the water drained along the inner surface of the fixed tub 20 during the dehydration stroke is biased in the direction in which the rotary tub 13 is rotated due to the high speed rotation of the rotary tub 13. The flow path is formed in the direction.

In detail, when the rotating tub 13 is rotated at a high speed in the process of dehydrating the laundry, the washing water discharged through the dehydrating hole 13a is forced to fly in the normal direction by the centrifugal force of the rotating tub 13. And, by the circumferential speed of the rotating tank 13, the force to fly in the tangential direction is discharged in the combined direction. Therefore, the washing water discharged to have a force to rotate in the rotation direction of the rotating tub 13 as a whole to push up the washing water flowing along the inner surface of the fixed tub 20 in the direction in which the rotating tub 13 is rotated drainage The water to be rotated toward the rotation direction of the rotating tub (13). That is, in the present invention, the drainage passage 21 inclined upward toward the direction in which the rotating tub 13 is rotated is formed so that the water biased in the rotational direction can be smoothly drained by the high speed rotation of the rotating tub 13.

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

When the drum washing machine rotates alternately the driving motor 14 provided in the lower portion of the main body 10 in the forward direction and the reverse direction, the rotational force is transmitted to the rotating tank 13 through the belt 15 so that the rotation of the rotating tank 13 Will be done. At this time, the laundry inside the rotating tub 13 is rolled up or pulled up by the lifter 13b, and washing is performed.

During the dehydration stroke, the water contained in the laundry is dehydrated by the centrifugal force generated by the high speed rotation of the rotating tub 30. The dewatered water is discharged toward the fixing tank 20 through the dehydration hole 13a of the rotating tub 13 and discharged to the outside of the main body 10 through the drain pipe 30 connected to the lower portion of the fixing tub 20. .

When the rotating tub 13 is rotated at a high speed when the dehydration stroke is performed, the washing water discharged through the dehydrating hole 13a is rotated by the rotational force of the rotating tub 13 as described above. By having a force to rotate in the direction of rotation, it is biased toward the direction of rotation. However, the drum washing machine according to the present invention is formed by the drainage passage inclined in the rotational direction in the lower portion of the fixing tank 20, the water biased in the rotational direction flows toward the drain hole 22 along the inclined drainage passage (21) It is lowered and drainage is made easily.

In addition, the drainage passage 21 according to the present invention is provided to be inclined toward the rear from the front of the fixing tank 20 is further increased drainage effect.

As described above in detail, the drum washing machine according to the present invention is formed to be recessed in the inner bottom surface of the fixing tank, a drainage path formed to be inclined upward in the direction in which the rotating tank is rotated from the drain hole formed in the lower portion of the fixing tank. Therefore, by the rotation of the rotary tub during dehydration administration, washing water biased toward the rotation direction is easily flowed through the drainage path to the drain hole has the advantage of increasing the drainage effect.

Claims (2)

Fixing tank 20 is installed inside the main body 10 and the wash water is fresh water, and if the rotatable tank 13 has a plurality of dehydration holes (13a) formed on the wall when rotatably installed inside the fixing tank, and the fixed In the drum washing machine having a drain hole 22 formed in the lower portion of the fixing tank so that the wash water of the tank can be drained, and a drain pipe 30 coupled to the drain hole 22 to guide the wash water discharged through the drain hole. , The rotary bath 13 is formed to be recessed in the inner surface of the fixing tank 20 to facilitate the drainage of the wash water during the dehydration stroke is rotated at a high speed and from the drain hole 22 to the rotary tank 13 Fixing tank of the drum washing machine, characterized in that the drainage passage 21 is formed to be inclined upward by a predetermined angle (β) toward the direction of rotation. The method of claim 1, The drainage passage 21 is a fixed tub of the drum washing machine, characterized in that formed inclined by a predetermined angle (α) from the front to the rear of the fixing tub 20 to facilitate the flow of water.