KR19990086544A - Drain pipe coupling structure of drum washing machine - Google Patents

Abstract

The present invention relates to a drum washing machine, and more particularly, to a coupling structure of the drain pipe is installed in the lower portion of the fixing tank to guide the drainage of the wash water.

In the drum washing machine according to the present invention, a second drainage hole is formed at a predetermined distance from the first drainage hole formed in the lower portion of the fixed tub in a direction in which the rotating tub is rotated, and a drain pipe for guiding drainage is connected to each drainage hole. Therefore, by the rotation of the rotary tub during the dehydration stroke, the washing water biased toward the rotation direction is easily drained through the second drain hole, and the water collected in the lower part of the fixed tank is drained through the first drain hole so that the drainage effect is greatly increased. There is an advantage to be improved.

Description

Drain pipe coupling structure of drum washing machine

The present invention relates to a drum washing machine, and more particularly, to a coupling structure of the drain pipe is installed in the lower portion of the fixing tank to guide the drainage of the wash water.

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 by forming a second drain hole in a predetermined interval spaced in the direction in which the rotating tank is rotated from the drain hole formed in the bottom of the fixed tank by connecting the drain pipe to each drain hole, dehydration It is to provide a drain pipe coupling structure of the drum washing machine which is easily discharged in the rotation direction of the rotary tub during the stroke.

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 a coupling structure of the fixing tank and the drain pipe according to the present invention.

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: first drain, 22: second drain,

30: drain pipe, 31: first connection,

32: second connection portion, 31a, 32a: flow prevention jaw,

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 drain hole has a first drain hole formed in the lower portion of the fixing tank to facilitate the inflow of the wash water drained, and a second drain hole formed at a position spaced a predetermined distance away from the first drain hole in a direction in which the rotating tank is rotated. It includes, the drain pipe is a configuration characterized in that it comprises a first connecting portion and a second connecting portion respectively connected to the first drain hole and the second drain hole.

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 coupling structure of the fixing tank and the drain pipe according to the present invention. Perspective view.

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.

Meanwhile, as shown in FIG. 3 and FIG. 4, the drum washing machine according to the present invention has two drain holes 21 and 22 formed at the bottom of the fixing tank 20, and each of the drain holes 21 and 22 is a drain pipe. Connected by 30. These drainage holes 21 and 22 are spaced apart from the first drainage hole 21 formed in the lower center of the fixing tank 20 in the direction in which the rotating tank 13 is rotated from the first drainage hole 21. It consists of a second drain hole 22 formed in the upper position.

The two drainage holes 21 and 22 are formed in this direction in which the water drained along the inner surface of the fixing tank 20 during the dehydration stroke is rotated by the high speed rotation of the rotating tub 13, so that the rotating tub 13 is rotated. In consideration of the biased nature of the water coming up in the direction of rotation is to be easily drained through the second drain hole (22).

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 move 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, the drum washing machine according to the present invention is easily drained through the second drain hole 22 of the water raised in the rotation direction of the rotary tub (13).

On the other hand, the drain pipe 30 is coupled to the lower portion of the fixing tank 20 is composed of a branch pipe having two inlets coupled to the two drain holes (21, 22), respectively. That is, the drain pipe 30 according to the present invention includes a first connection portion 31 coupled to the first drain hole 21, and a second connection portion 32 coupled to the second drain hole 22. The second connectors 31 and 32 are joined to one pipe to be connected to the drain pump 40.

In addition, the end of the first connection portion 31 and the second connection portion 32 is provided with a flow preventing jaw (31a, 32a) protruding a predetermined height toward the inner surface of the fixing tank 20 is washed to flow into the drain pipe (30) Water inflow is greatly improved. The flow preventing jaws 31a and 32a are divided into half of the inlet portions of the first and second connection portions 31 and 32 and are formed only in the rotational direction of the rotating tub 13. This causes the wash water to be raised in the rotational direction of the rotating tub 13 to be caught by the flow preventing jaws 31a and 32a protruding in the inward direction of the fixing tub 20 so that the inflow of the washing water flowing into the drain pipe 30 is improved. It is. Here, the portion where the flow preventing jaws 31a and 32a are not formed is preferable to lower the height of the inlet so that the wash water can be easily introduced.

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.

At this time, the water biased in the rotational direction of the rotary tub 13 is easily drained through the second drain hole 22, and the water collected in the lower portion of the fixed tub 20 is drained through the first drain hole 21. By doing so, the drainage effect is greatly improved. In addition, since the inflow of the wash water is improved by the flow barriers 31a and 32a formed at the inlet of the drain pipe 30, the drainage effect is further increased.

As described above in detail, the drum washing machine according to the present invention has a second drain hole is formed at a predetermined interval spaced in the direction in which the rotating tank is rotated from the first drain hole formed in the lower portion of the fixing tank, each drain hole has a drain pipe for guiding drainage Connected. Therefore, by the rotation of the rotary tub during dehydration administration, the washing water flowing in the direction of rotation is easily drained through the second drain hole, and the water collected in the lower part of the fixed tank is drained through the first drain hole, so that the drainage effect is greatly increased. There is an advantage to be improved.

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 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 to guide the wash water discharged through the drain hole, The drain hole is spaced apart from the first drain hole 21 formed in the lower portion of the fixing tank 20 to facilitate the inflow of the wash water to be drained and a predetermined distance in the direction in which the rotating tank is rotated when dewatering from the first drain hole. A second drain hole 22 formed at the position, The drain pipe 30 is coupled to the drain pipe of the drum washing machine comprising a first connecting portion 31 and a second connecting portion 32 connected to the first drain hole 21 and the second drain hole 22, respectively. rescue. The method of claim 1, The inlet portion of the first connection portion 31 and the second connection portion 32 protrudes a predetermined height toward the inner surface of the fixing tub 20 so that the washing water flowing in the rotational direction of the rotating tub 13 can be caught. Drain pipe coupling structure of the drum washing machine, characterized in that the flow preventing jaw (31a, 32a) is provided.