KR20000005762U - Forced drainage structure of fully automatic washing machine - Google Patents

Abstract

The present invention relates to a forced drainage structure of a fully automatic washing machine.

Conventionally, air is introduced through a water overflow pipe of a water tank so that the pump is idling, and thus, noise is generated and drainage is deteriorated.

The present invention is automatically carried out the entire process of washing, rinsing, dehydration, and the reservoir, the water overflow pipe into which the overflowing water flows in, and the lower side of the reservoir communicates with one side of the water overflow pipe and discharged from the reservoir A fully automatic washing machine having a drainage structure having a drainage housing into which water is first introduced, and a drainage pump connected to the drainage housing and the final outlet by a drain pipe for forcibly discharging water introduced into the drainage housing to the outlet. Forming a bottleneck at the bottom of the inner circumferential surface of the tube; A floatation mechanism is provided above the bottleneck; It is characterized in that the buoyancy mechanism can selectively open and close the bottleneck of the water overflow pipe according to the high and low water level in the water overflow pipe.

According to the present invention, it is possible to minimize the water remaining in the washing machine by preventing the idling of the drain pump due to air inlet and easily discharge a large amount of water generated in the initial stage of dehydration. Therefore, by reducing the noise and power loss due to the idling of the pump there is an effect to improve the overall performance and quality of the washing machine.

Description

Forced drainage structure of fully automatic washing machine

The present invention relates to a washing machine, and more particularly, in a fully automatic washing machine in which water in a reservoir is forcibly drained by using a drain pump after washing or rinsing, the automatic washing machine which can block the inflow of air into the drain pump. It relates to a forced drainage structure.

The automatic washing machine which automatically performs the whole process of washing, rinsing and dehydration under the control of Micom, is forcibly drained using a natural drainage method and a drainage pump that naturally drains using atmospheric pressure according to the drainage method. It is divided into a forced drainage method, and after the washing process is completed, the water in the reservoir is drained at the beginning of the rinsing and dehydration stroke, and then the dehydration and the rinse are repeated several times.

Figure 1 schematically shows the forced drainage structure of such a fully automatic washing machine, the washing tank (Basket: 2) for washing and dehydration is installed in the inside of the reservoir 1 in which water is stored as a rotatable structure, The lower part of 1) is provided with a drainage housing 3 through which water discharged from the reservoir 1 flows first. On the outer surface of the reservoir 1, a water overflow pipe 5 penetrates the upper side of the reservoir 1 and overflows therefrom, and a lower end thereof communicates with the drainage housing 3.

The drainage housing 3 is connected to the drainage pump 7 for forced drainage through a drainage pipe 6, and an outlet (not shown) through which water is finally drained is more than the drainage opening 4 of the drainage housing 3. The structure is located high.

Therefore, at the same time as the washing or rinsing stroke is completed, the drainage pump 7 is operated to collect foreign substances such as lint mixed with the washing water while the washing water is discharged from the water reservoir 1 and the water overflow pipe 5 through the catching net. At the same time, the suction force by the rotation of an impeller (not shown) installed in the drain pump 7 forces the washing water to be discharged to an outlet located higher than the drain port 4 of the drain housing 3, and the washing machine is dewatered. It entails administration.

That is, in the conventional drainage structure, while the drainage pump 7 is operated, the water in the reservoir 1 and the water contained in the water overflow pipe 5 simultaneously flow into the drainage housing 3 and join in the drainage pipe. (6) is a structure that flows into the drain pump (7), when the discharge pressure of the water flowing out of the reservoir (1) is lowered as the water level in the reservoir (1) gradually decreases, the water inflow to the drain pump (7) As it decreases, the outflow speed of the water overflow pipe 5 having a smaller diameter is relatively higher than that of the water storage tank 1, so that the water level of the water overflow pipe 5 is drastically lowered, and the air in the drainage housing 3 is reduced. Is introduced into the air is mixed with the water flowing into the pump (7).

As such, the air introduced into the pump 7 causes idleness of the impeller, thereby causing noise, and at the same time, the amount of water in the pump 7, which is a medium for transmitting the impeller's rotational force, drops, thereby resulting in a dehydration stroke. In the early stage, the water discharged from the laundry was not drained and remained at the bottom of the water storage tank 1, so that the impact on the inner surface of the rotating washing tank 2 and the fixed water storage tank 1 was severe.

The present invention is devised to solve the conventional problems as described above, the object of the present invention is to automatically block the connection passage with the drainage housing when the water level of the water overflow pipe is lowered below a certain level, This prevents air from entering the drain pump.

The present invention for achieving the above object, the entire process of washing, rinsing, dehydration is automatically performed, and the reservoir, the water overflow pipe into which the overflowing water from the reservoir flows, and is installed in the reservoir bottom water overflow pipe Forced drainage structure having a drainage housing in which one side is in communication with the water discharged from the reservoir, and a drainage pump connected to the drainage housing and the final discharge port for forcibly discharging the water introduced into the drainage housing to the discharge port. A fully automatic washing machine, comprising: forming a bottleneck at a lower end of an inner circumferential surface of a water overflow pipe; A floatation mechanism is provided above the bottleneck; It is characterized in that the buoyancy mechanism can selectively open and close the bottleneck of the water overflow pipe according to the high and low water level in the water overflow pipe.

According to the present invention as described above, when the discharge pressure of the water flowing out of the reservoir is lowered, the outflow rate of the water overflow pipe is relatively faster, so that the water level in the water overflow pipe lowers below the bottleneck, and the flotation mechanism is the bottleneck of the water overflow pipe. As it is seated on the floor, it blocks the flow path and blocks the air inflow into the drainage housing.

1 is a cross-sectional view showing a drainage structure of a conventional fully automatic washing machine;

Figure 2a is a cross-sectional view showing a forced drainage structure of the automatic washing machine according to the present invention,

Figure 2b is an operating state of the forced drainage structure according to the present invention.

<Description of the symbols for the main parts of the drawings>

10; Reservoir (Tub) 11; Overflow hose

12; Bottleneck 13; Knitting

14; Drain housing 16; Drain (of drainage housing)

17; Drain hose 18; Drain pump

19; outlet

Such a characteristic configuration and the effects of the present invention will become more apparent through the following detailed description of the embodiments with reference to the accompanying drawings.

Figure 2 shows the forced drainage structure of the automatic washing machine according to the present invention.

As shown, the water overflow pipe 11 is located on the outer surface of the water tank (10) containing water penetrates the upper side of the water tank (10), the water overflowed from the water tank (10) in the washing process flows in, The lower end of the water overflow pipe 11 is connected to the inlet 15 of the drainage housing 14 installed below the reservoir 10. On the inner circumferential surface of the water overflow pipe 11, a bottleneck 12 is formed above the connection portion with the inlet 15, and the width of the flow path is narrowed at this portion, and a knit 13 is disposed on the upper side of the bottleneck 12. Is inserted to raise or lower the inside of the water overflow pipe 11 according to the height of the water level in the water overflow pipe 11.

Knit 13 is preferably produced in a spherical shape of a diameter smaller than the inner diameter of the water overflow pipe 11 and somewhat larger than the inner diameter of the bottle 12, so that the water level in the water overflow pipe 11 is a bottleneck ( When positioned below 12), the knitting 13 is blocked by not passing through the bottleneck 12, thereby blocking the flow path.

The drain housing 14 has an upper portion communicating with the bottom of the reservoir 10, and a drain pipe 17 is installed at the drain hole 16 positioned at the lower portion thereof, and is connected to the drain pump 18 side. The drain pump 18 is connected to the final discharge port 19 and the drain pipe 17, the final discharge port 19 is located relatively higher than the ground to the drain port 16 of the drain housing (14).

Such an effect according to the present invention will be described with reference to Figure 2b showing the operating state of the knitting 13 in the water overflow pipe (11).

When the drainage pump 18 for discharging the water in the reservoir 10 by the washing and the rinsing stroke is completed, the water inside the reservoir 10 and the water overflow pipe 11 are simultaneously driven by the suction force of the pump 18. It flows into the drain housing 14 and is sucked into the drain pump 18 along the drain pipe 17 connected to the drain hole 16. In such a state, when the water level in the reservoir 10 is gradually lowered and the discharge pressure of the water flowing out of the reservoir 10 is lowered, the inflow into the drainage housing 14 becomes smaller and has a smaller diameter than the reservoir 10. The outflow rate on the water overflow pipe 11 side becomes relatively high, and thus, the water level in the water overflow pipe 11 is drastically lowered, so that the position of the knitting 13 moves downward from the top of the water overflow pipe 11. Will descend.

When the water in the reservoir 10 is almost drained, the washing machine proceeds to a dehydration stroke. The drain pump 18 continuously rotates to drain the water remaining in the laundry, and the water in the water overflow pipe 11 When almost discharged so that the water level is located below the bottleneck part 12, the knit 13 is naturally seated in the bottleneck part 12 of the inner circumferential surface of the water overflow pipe 11, so that the flow path inside the water overflow pipe 11 is automatically The inflow of water dehydrated from the laundry becomes easier while blocking the inflow of air.

As described above, the present invention, by blocking the air flowing into the drain housing through the water overflow pipe, and easily discharge a large amount of water generated in the early stage of dehydration, to prevent the idle pump of the drain pump due to the air inflow and washing machine It is possible to minimize the amount of water remaining in the. Therefore, by reducing the noise and power loss due to the idling of the pump there is an effect to improve the overall performance and quality of the washing machine.

Claims (1)

The entire process of washing, rinsing, and dehydration is performed automatically, and the reservoir, the overflow pipe into which the overflowing water flows, and the lower side of the reservoir communicates with one side of the overflow pipe, and the water discharged from the reservoir In the fully automatic washing machine of the forced drainage structure having a drainage housing introduced first, and a drainage pump connected to the drainage housing and the final discharge port by a drain pipe for forcibly draining the water introduced into the drainage housing to the discharge port, Forming a bottleneck at a lower end of the inner circumferential surface of the water overflow pipe; A support mechanism is provided above the bottleneck; Forced drainage structure of the automatic washing machine, characterized in that the flotation mechanism can selectively open and close the bottleneck of the water overflow pipe in accordance with the high and low water level in the water overflow pipe.